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 aconvert_filter_deps="strtok_r"
1579 aformat_filter_deps="strtok_r"
1580 amovie_filter_deps="avcodec avformat"
1581 blackframe_filter_deps="gpl"
1582 boxblur_filter_deps="gpl"
1583 cropdetect_filter_deps="gpl"
1584 delogo_filter_deps="gpl"
1585 drawtext_filter_deps="libfreetype"
1586 frei0r_filter_deps="frei0r dlopen strtok_r"
1587 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1588 hqdn3d_filter_deps="gpl"
1589 movie_filter_deps="avcodec avformat"
1590 mp_filter_deps="gpl avcodec"
1591 mptestsrc_filter_deps="gpl"
1592 negate_filter_deps="lut_filter"
1593 ocv_filter_deps="libopencv"
1594 scale_filter_deps="swscale"
1595 yadif_filter_deps="gpl"
1596
1597 # libraries
1598 avdevice_deps="avcodec avformat"
1599 avformat_deps="avcodec"
1600 postproc_deps="gpl"
1601
1602 # programs
1603 ffmpeg_deps="avcodec avformat swscale"
1604 ffmpeg_select="buffer_filter buffersink_filter"
1605 avconv_deps="avcodec avformat swscale"
1606 avconv_select="buffer_filter"
1607 ffplay_deps="avcodec avformat swscale sdl"
1608 ffplay_select="buffersink_filter rdft"
1609 ffprobe_deps="avcodec avformat"
1610 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1611 ffserver_extralibs='$ldl'
1612
1613 doc_deps="texi2html"
1614
1615 # tests
1616
1617 test_deps(){
1618     suf1=$1
1619     suf2=$2
1620     shift 2
1621     for v; do
1622         dep=${v%=*}
1623         tests=${v#*=}
1624         for name in ${tests}; do
1625             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1626         done
1627     done
1628 }
1629
1630 test_deps _encoder _decoder                                             \
1631     adpcm_g726=g726                                                     \
1632     adpcm_ima_qt                                                        \
1633     adpcm_ima_wav                                                       \
1634     adpcm_ms                                                            \
1635     adpcm_swf                                                           \
1636     adpcm_yamaha=adpcm_yam                                              \
1637     alac                                                                \
1638     asv1                                                                \
1639     asv2                                                                \
1640     bmp                                                                 \
1641     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1642     dvvideo="dv dv50"                                                   \
1643     ffv1                                                                \
1644     flac                                                                \
1645     flashsv                                                             \
1646     flv                                                                 \
1647     gif                                                                 \
1648     h261                                                                \
1649     h263="h263 h263p"                                                   \
1650     huffyuv                                                             \
1651     jpegls                                                              \
1652     mjpeg="jpg mjpeg ljpeg"                                             \
1653     mp2                                                                 \
1654     mpeg1video="mpeg mpeg1b"                                            \
1655     mpeg2video="mpeg2 mpeg2thread"                                      \
1656     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1657     msmpeg4v3=msmpeg4                                                   \
1658     msmpeg4v2                                                           \
1659     pbm=pbmpipe                                                         \
1660     pcx                                                                 \
1661     pgm="pgm pgmpipe"                                                   \
1662     png                                                                 \
1663     ppm="ppm ppmpipe"                                                   \
1664     rawvideo="rgb yuv"                                                  \
1665     roq                                                                 \
1666     rv10                                                                \
1667     rv20                                                                \
1668     sgi                                                                 \
1669     snow="snow snowll"                                                  \
1670     svq1                                                                \
1671     targa=tga                                                           \
1672     tiff                                                                \
1673     wmav1                                                               \
1674     wmav2                                                               \
1675     wmv1                                                                \
1676     wmv2                                                                \
1677
1678 test_deps _muxer _demuxer                                               \
1679     aiff                                                                \
1680     pcm_alaw=alaw                                                       \
1681     asf                                                                 \
1682     au                                                                  \
1683     avi                                                                 \
1684     dv=dv_fmt                                                           \
1685     ffm                                                                 \
1686     flv=flv_fmt                                                         \
1687     gxf                                                                 \
1688     matroska=mkv                                                        \
1689     mmf                                                                 \
1690     mov                                                                 \
1691     pcm_mulaw=mulaw                                                     \
1692     mxf="mxf mxf_d10"                                                   \
1693     nut                                                                 \
1694     ogg                                                                 \
1695     rawvideo=pixfmt                                                     \
1696     rm                                                                  \
1697     swf                                                                 \
1698     mpegts=ts                                                           \
1699     voc                                                                 \
1700     wav                                                                 \
1701     yuv4mpegpipe=yuv4mpeg                                               \
1702
1703 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1704 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1705
1706 # default parameters
1707
1708 logfile="config.log"
1709
1710 # installation paths
1711 prefix_default="/usr/local"
1712 bindir_default='${prefix}/bin'
1713 datadir_default='${prefix}/share/ffmpeg'
1714 incdir_default='${prefix}/include'
1715 libdir_default='${prefix}/lib'
1716 mandir_default='${prefix}/share/man'
1717 shlibdir_default="$libdir_default"
1718
1719 # toolchain
1720 ar_default="ar"
1721 cc_default="gcc"
1722 cxx_default="g++"
1723 cc_version=\"unknown\"
1724 host_cc_default="gcc"
1725 install="install"
1726 ln_s="ln -sf"
1727 nm_default="nm"
1728 objformat="elf"
1729 pkg_config_default=pkg-config
1730 ranlib="ranlib"
1731 strip_default="strip"
1732 yasmexe="yasm"
1733 nogas=":"
1734
1735 nm_opts='-g'
1736
1737 # machine
1738 arch_default=$(uname -m)
1739 cpu="generic"
1740
1741 # OS
1742 target_os_default=$(tolower $(uname -s))
1743 host_os=$target_os_default
1744
1745 # configurable options
1746 enable avcodec
1747 enable avdevice
1748 enable avfilter
1749 enable avformat
1750 enable avutil
1751 enable asm
1752 enable debug
1753 enable doc
1754 enable fastdiv
1755 enable ffmpeg
1756 enable avconv
1757 enable ffplay
1758 enable ffprobe
1759 enable ffserver
1760 enable network
1761 enable optimizations
1762 enable postproc
1763 enable protocols
1764 enable static
1765 enable stripping
1766 enable swscale
1767 enable swscale_alpha
1768
1769 # build settings
1770 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1771 FFSERVERLDFLAGS=-Wl,-E
1772 LIBPREF="lib"
1773 LIBSUF=".a"
1774 FULLNAME='$(NAME)$(BUILDSUF)'
1775 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1776 SLIBPREF="lib"
1777 SLIBSUF=".so"
1778 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1779 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1780 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1781 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1782 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1783 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1784
1785 AS_O='-o $@'
1786 CC_O='-o $@'
1787 CXX_O='-o $@'
1788
1789 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1790 host_libs='-lm'
1791
1792 target_path='$(CURDIR)'
1793
1794 # since the object filename is not given with the -MM flag, the compiler
1795 # is only able to print the basename, and we must add the path ourselves
1796 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1797 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1798
1799 # find source path
1800 if test -f configure; then
1801     source_path=.
1802 else
1803     source_path=$(cd $(dirname "$0"); pwd)
1804     echo "$source_path" | grep -q '[[:blank:]]' &&
1805         die "Out of tree builds are impossible with whitespace in source path."
1806     test -e "$source_path/config.h" &&
1807         die "Out of tree builds are impossible with config.h in source dir."
1808 fi
1809
1810 for v in "$@"; do
1811     r=${v#*=}
1812     l=${v%"$r"}
1813     r=$(sh_quote "$r")
1814     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1815 done
1816
1817 find_things(){
1818     thing=$1
1819     pattern=$2
1820     file=$source_path/$3
1821     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1822 }
1823
1824 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1825 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1826 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1827 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1828 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1829 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1830 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1831 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1832 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1833 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1834 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1835
1836 find_tests(){
1837     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1838 }
1839
1840 ACODEC_TESTS=$(find_tests acodec)
1841 VCODEC_TESTS=$(find_tests vsynth1)
1842 LAVF_TESTS=$(find_tests lavf)
1843 LAVFI_TESTS=$(find_tests lavfi)
1844 SEEK_TESTS=$(find_tests seek seek_)
1845
1846 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1847
1848 for n in $COMPONENT_LIST; do
1849     v=$(toupper ${n%s})_LIST
1850     eval enable \$$v
1851     eval ${n}_if_any="\$$v"
1852 done
1853
1854 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1855
1856 die_unknown(){
1857     echo "Unknown option \"$1\"."
1858     echo "See $0 --help for available options."
1859     exit 1
1860 }
1861
1862 show_list() {
1863     suffix=_$1
1864     shift
1865     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1866     exit 0
1867 }
1868
1869 for opt do
1870     optval="${opt#*=}"
1871     case "$opt" in
1872     --extra-ldflags=*) add_ldflags $optval
1873     ;;
1874     --extra-libs=*) add_extralibs $optval
1875     ;;
1876     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1877     ;;
1878     --enable-debug=*) debuglevel="$optval"
1879     ;;
1880     --disable-everything)
1881     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1882     ;;
1883     --enable-*=*|--disable-*=*)
1884     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1885     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1886     eval list=\$$(toupper $thing)_LIST
1887     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1888     $action $(filter "$name" $list)
1889     ;;
1890     --enable-?*|--disable-?*)
1891     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1892     if is_in $option $COMPONENT_LIST; then
1893         test $action = disable && action=unset
1894         eval $action \$$(toupper ${option%s})_LIST
1895     elif is_in $option $CMDLINE_SELECT; then
1896         $action $option
1897     else
1898         die_unknown $opt
1899     fi
1900     ;;
1901     --list-*)
1902         NAME="${opt#--list-}"
1903         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1904         NAME=${NAME%s}
1905         eval show_list $NAME \$$(toupper $NAME)_LIST
1906     ;;
1907     --help|-h) show_help
1908     ;;
1909     *)
1910     optname="${opt%%=*}"
1911     optname="${optname#--}"
1912     optname=$(echo "$optname" | sed 's/-/_/g')
1913     if is_in $optname $CMDLINE_SET; then
1914         eval $optname='$optval'
1915     elif is_in $optname $CMDLINE_APPEND; then
1916         append $optname "$optval"
1917     else
1918          die_unknown $opt
1919     fi
1920     ;;
1921     esac
1922 done
1923
1924 disabled logging && logfile=/dev/null
1925
1926 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1927 set >> $logfile
1928
1929 test -n "$cross_prefix" && enable cross_compile
1930
1931 if enabled cross_compile; then
1932     test -n "$arch" && test -n "$target_os" ||
1933         die "Must specify target arch and OS when cross-compiling"
1934 fi
1935
1936 set_default arch target_os
1937
1938 ar_default="${cross_prefix}${ar_default}"
1939 cc_default="${cross_prefix}${cc_default}"
1940 cxx_default="${cross_prefix}${cxx_default}"
1941 nm_default="${cross_prefix}${nm_default}"
1942 pkg_config_default="${cross_prefix}${pkg_config_default}"
1943 ranlib="${cross_prefix}${ranlib}"
1944 strip_default="${cross_prefix}${strip_default}"
1945
1946 sysinclude_default="${sysroot}/usr/include"
1947
1948 set_default cc cxx nm pkg_config strip sysinclude
1949 enabled cross_compile || host_cc_default=$cc
1950 set_default host_cc
1951
1952 if ! $pkg_config --version >/dev/null 2>&1; then
1953     warn "$pkg_config not found, library detection may fail."
1954     pkg_config=false
1955 fi
1956
1957 exesuf() {
1958     case $1 in
1959         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1960     esac
1961 }
1962
1963 EXESUF=$(exesuf $target_os)
1964 HOSTEXESUF=$(exesuf $host_os)
1965
1966 # set temporary file name
1967 : ${TMPDIR:=$TEMPDIR}
1968 : ${TMPDIR:=$TMP}
1969 : ${TMPDIR:=/tmp}
1970
1971 if ! check_cmd mktemp -u XXXXXX; then
1972     # simple replacement for missing mktemp
1973     # NOT SAFE FOR GENERAL USE
1974     mktemp(){
1975         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1976     }
1977 fi
1978
1979 tmpfile(){
1980     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1981         (set -C; exec > $tmp) 2>/dev/null ||
1982         die "Unable to create temporary file in $TMPDIR."
1983     append TMPFILES $tmp
1984     eval $1=$tmp
1985 }
1986
1987 trap 'rm -f -- $TMPFILES' EXIT
1988
1989 tmpfile TMPC  .c
1990 tmpfile TMPCPP .cpp
1991 tmpfile TMPE  $EXESUF
1992 tmpfile TMPH  .h
1993 tmpfile TMPO  .o
1994 tmpfile TMPS  .S
1995 tmpfile TMPV  .ver
1996 tmpfile TMPSH .sh
1997 tmpfile TMPASM .asm
1998
1999 unset -f mktemp
2000
2001 chmod +x $TMPE
2002
2003 # make sure we can execute files in $TMPDIR
2004 cat > $TMPSH 2>> $logfile <<EOF
2005 #! /bin/sh
2006 EOF
2007 chmod +x $TMPSH >> $logfile 2>&1
2008 if ! $TMPSH >> $logfile 2>&1; then
2009     cat <<EOF
2010 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2011 variable to another directory and make sure that it is not mounted noexec.
2012 EOF
2013     die "Sanity test failed."
2014 fi
2015
2016 filter_cflags=echo
2017 filter_cppflags=echo
2018 filter_asflags=echo
2019
2020 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2021     cc_type=llvm_gcc
2022     cc_version=__VERSION__
2023     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2024     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2025     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2026     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2027     speed_cflags='-O3'
2028     size_cflags='-Os'
2029 elif $cc -v 2>&1 | grep -qi ^gcc; then
2030     cc_type=gcc
2031     cc_version=__VERSION__
2032     gcc_version=$($cc --version | head -n1)
2033     gcc_basever=$($cc -dumpversion)
2034     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2035     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2036     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2037     if ! $cc -dumpversion | grep -q '^2\.'; then
2038         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2039         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2040     fi
2041     speed_cflags='-O3'
2042     size_cflags='-Os'
2043 elif $cc --version 2>/dev/null | grep -q Intel; then
2044     cc_type=icc
2045     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2046     cc_ident=$($cc --version | head -n1)
2047     icc_version=$($cc -dumpversion)
2048     CC_DEPFLAGS='-MMD'
2049     AS_DEPFLAGS='-MMD'
2050     speed_cflags='-O3'
2051     size_cflags='-Os'
2052     noopt_cflags='-O1'
2053 elif $cc -v 2>&1 | grep -q xlc; then
2054     cc_type=xlc
2055     cc_version="AV_STRINGIFY(__IBMC__)"
2056     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2057     speed_cflags='-O5'
2058     size_cflags='-O5 -qcompact'
2059 elif $cc -V 2>/dev/null | grep -q Compaq; then
2060     cc_type=ccc
2061     cc_version="AV_STRINGIFY(__DECC_VER)"
2062     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2063     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2064     debuglevel=3
2065     add_ldflags -Wl,-z,now # calls to libots crash without this
2066     speed_cflags='-fast'
2067     size_cflags='-O1'
2068 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2069     test -d "$sysroot" || die "No valid sysroot specified."
2070     cc_type=armcc
2071     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2072     cc_ident=$($cc --vsn | head -n1)
2073     armcc_conf="$PWD/armcc.conf"
2074     $cc --arm_linux_configure                 \
2075         --arm_linux_config_file="$armcc_conf" \
2076         --configure_sysroot="$sysroot"        \
2077         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2078         die "Error creating armcc configuration file."
2079     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2080     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2081     as_default="${cross_prefix}gcc"
2082     CC_DEPFLAGS='-MMD'
2083     AS_DEPFLAGS='-MMD'
2084     speed_cflags='-O3'
2085     size_cflags='-Os'
2086     filter_asflags="filter_out -W${armcc_opt}*"
2087 elif $cc -version 2>/dev/null | grep -q TMS470; then
2088     cc_type=tms470
2089     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2090     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2091     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2092     CC_O='-fr=$(@D)'
2093     as_default="${cross_prefix}gcc"
2094     ld_default="${cross_prefix}gcc"
2095     TMPO=$(basename $TMPC .c).o
2096     append TMPFILES $TMPO
2097     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2098     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2099     AS_DEPFLAGS='-MMD'
2100     speed_cflags='-O3 -mf=5'
2101     size_cflags='-O3 -mf=2'
2102     filter_cflags=tms470_flags
2103     tms470_flags(){
2104         for flag; do
2105             case $flag in
2106                 -march=*|-mcpu=*)
2107                     case "${flag#*=}" in
2108                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2109                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2110                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2111                         armv6*|arm11*)          echo -mv=6   ;;
2112                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2113                                                 echo -mv=5e  ;;
2114                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2115                     esac
2116                     ;;
2117                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2118                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2119                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2120                 -msoft-float)   echo --float_support=vfplib       ;;
2121                 -O[0-3]|-mf=*)  echo $flag                        ;;
2122                 -g)             echo -g -mn                       ;;
2123                 -pds=*)         echo $flag                        ;;
2124             esac
2125         done
2126     }
2127 elif $cc -v 2>&1 | grep -q clang; then
2128     cc_type=clang
2129     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2130         cc_version=__clang_version__ || cc_version=__VERSION__
2131     cc_ident=$($cc --version | head -n1)
2132     CC_DEPFLAGS='-MMD'
2133     AS_DEPFLAGS='-MMD'
2134     speed_cflags='-O3'
2135     size_cflags='-Os'
2136 elif $cc -V 2>&1 | grep -q Sun; then
2137     cc_type=suncc
2138     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2139     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2140     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2141     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2142     add_ldflags -xc99
2143     speed_cflags='-O5'
2144     size_cflags='-O5 -xspace'
2145     filter_cflags=suncc_flags
2146     suncc_flags(){
2147         for flag; do
2148             case $flag in
2149                 -march=*|-mcpu=*)
2150                     case "${flag#*=}" in
2151                         native)                   echo -xtarget=native       ;;
2152                         v9|niagara)               echo -xarch=sparc          ;;
2153                         ultrasparc)               echo -xarch=sparcvis       ;;
2154                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2155                         i586|pentium)             echo -xchip=pentium        ;;
2156                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2157                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2158                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2159                         pentium4*)          echo -xtarget=pentium4           ;;
2160                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2161                         *-sse3)             echo -xarch=sse3                 ;;
2162                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2163                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2164                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2165                         k8|opteron|athlon64|athlon-fx)
2166                                                   echo -xarch=sse2a          ;;
2167                         athlon*)                  echo -xarch=pentium_proa   ;;
2168                     esac
2169                     ;;
2170                 -std=c99)             echo -xc99              ;;
2171                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2172                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2173                 -W*,*)                echo $flag              ;;
2174                 -f*-*|-W*)                                    ;;
2175                 *)                    echo $flag              ;;
2176             esac
2177         done
2178     }
2179 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2180     cc_type=pathscale
2181     cc_version=__PATHSCALE__
2182     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2183     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2184     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2185     speed_cflags='-O2'
2186     size_cflags='-Os'
2187     filter_cflags='filter_out -Wdisabled-optimization'
2188 elif $cc -v 2>&1 | grep -q Open64; then
2189     cc_type=open64
2190     cc_version=__OPEN64__
2191     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2192     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2193     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2194     speed_cflags='-O2'
2195     size_cflags='-Os'
2196     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2197 fi
2198
2199 test -n "$cc_type" && enable $cc_type ||
2200     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2201
2202 : ${as_default:=$cc}
2203 : ${dep_cc_default:=$cc}
2204 : ${ld_default:=$cc}
2205 set_default ar as dep_cc ld
2206
2207 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2208 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2209 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2210
2211 add_cflags $extra_cflags
2212 add_cxxflags $extra_cxxflags
2213 add_asflags $extra_cflags
2214
2215 if test -n "$sysroot"; then
2216     case "$cc_type" in
2217         gcc|llvm_gcc|clang)
2218             add_cppflags --sysroot="$sysroot"
2219             add_ldflags --sysroot="$sysroot"
2220         ;;
2221         tms470)
2222             add_cppflags -I"$sysinclude"
2223             add_ldflags  --sysroot="$sysroot"
2224         ;;
2225     esac
2226 fi
2227
2228 if test "$cpu" = host; then
2229     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2230
2231     case "$cc_type" in
2232         gcc|llvm_gcc)
2233             check_native(){
2234                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2235                 sed -n "/cc1.*$1=/{
2236                             s/.*$1=\\([^ ]*\\).*/\\1/
2237                             p
2238                             q
2239                         }" $TMPE
2240             }
2241             cpu=$(check_native -march || check_native -mcpu)
2242         ;;
2243     esac
2244
2245     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2246 fi
2247
2248 # Deal with common $arch aliases
2249 case "$arch" in
2250     arm*)
2251         arch="arm"
2252     ;;
2253     mips|mipsel|IP*)
2254         arch="mips"
2255     ;;
2256     mips64*)
2257         arch="mips"
2258         subarch="mips64"
2259     ;;
2260     parisc|hppa)
2261         arch="parisc"
2262     ;;
2263     parisc64|hppa64)
2264         arch="parisc"
2265         subarch="parisc64"
2266     ;;
2267     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2268         arch="ppc"
2269     ;;
2270     s390|s390x)
2271         arch="s390"
2272     ;;
2273     sh4|sh)
2274         arch="sh4"
2275     ;;
2276     sun4u|sparc64)
2277         arch="sparc"
2278         subarch="sparc64"
2279     ;;
2280     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2281         arch="x86"
2282     ;;
2283 esac
2284
2285 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2286 enable $arch
2287
2288 # Add processor-specific flags
2289 if test "$cpu" = generic; then
2290     : do nothing
2291 elif enabled ppc; then
2292
2293     case $(tolower $cpu) in
2294         601|ppc601|powerpc601)
2295             cpuflags="-mcpu=601"
2296             disable altivec
2297         ;;
2298         603*|ppc603*|powerpc603*)
2299             cpuflags="-mcpu=603"
2300             disable altivec
2301         ;;
2302         604*|ppc604*|powerpc604*)
2303             cpuflags="-mcpu=604"
2304             disable altivec
2305         ;;
2306         g3|75*|ppc75*|powerpc75*)
2307             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2308             disable altivec
2309         ;;
2310         g4|745*|ppc745*|powerpc745*)
2311             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2312         ;;
2313         74*|ppc74*|powerpc74*)
2314             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2315         ;;
2316         g5|970|ppc970|powerpc970|power4*)
2317             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2318         ;;
2319         cell)
2320             cpuflags="-mcpu=cell"
2321             enable ldbrx
2322         ;;
2323         e500v2)
2324             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2325             disable altivec
2326         ;;
2327         e500)
2328             cpuflags="-mcpu=8540 -mhard-float"
2329             disable altivec
2330         ;;
2331     esac
2332
2333 elif enabled x86; then
2334
2335     case $cpu in
2336         i[345]86|pentium)
2337             cpuflags="-march=$cpu"
2338             disable mmx
2339         ;;
2340         # targets that do NOT support conditional mov (cmov)
2341         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2342             cpuflags="-march=$cpu"
2343             disable cmov
2344         ;;
2345         # targets that do support conditional mov (cmov)
2346         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2347             cpuflags="-march=$cpu"
2348             enable cmov
2349             enable fast_cmov
2350         ;;
2351         # targets that do support conditional mov but on which it's slow
2352         pentium4|pentium4m|prescott|nocona)
2353             cpuflags="-march=$cpu"
2354             enable cmov
2355             disable fast_cmov
2356         ;;
2357     esac
2358
2359 elif enabled sparc; then
2360
2361     case $cpu in
2362         niagara)
2363             cpuflags="-mcpu=$cpu"
2364             disable vis
2365         ;;
2366         sparc64)
2367             cpuflags="-mcpu=v9"
2368         ;;
2369     esac
2370
2371 elif enabled arm; then
2372
2373     case $cpu in
2374         armv*)
2375             cpuflags="-march=$cpu"
2376             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2377         ;;
2378         *)
2379             cpuflags="-mcpu=$cpu"
2380             case $cpu in
2381                 cortex-a*)                               subarch=armv7a  ;;
2382                 cortex-r*)                               subarch=armv7r  ;;
2383                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2384                 arm11*)                                  subarch=armv6   ;;
2385                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2386                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2387             esac
2388         ;;
2389     esac
2390
2391 elif enabled alpha; then
2392
2393     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2394
2395 elif enabled bfin; then
2396
2397     cpuflags="-mcpu=$cpu"
2398
2399 elif enabled mips; then
2400
2401     cpuflags="-march=$cpu"
2402
2403 elif enabled avr32; then
2404
2405     case $cpu in
2406         ap7[02]0[0-2])
2407             subarch="avr32_ap"
2408             cpuflags="-mpart=$cpu"
2409         ;;
2410         ap)
2411             subarch="avr32_ap"
2412             cpuflags="-march=$cpu"
2413         ;;
2414         uc3[ab]*)
2415             subarch="avr32_uc"
2416             cpuflags="-mcpu=$cpu"
2417         ;;
2418         uc)
2419             subarch="avr32_uc"
2420             cpuflags="-march=$cpu"
2421         ;;
2422     esac
2423
2424 fi
2425
2426 add_cflags $cpuflags
2427 add_asflags $cpuflags
2428
2429 # compiler sanity check
2430 check_exec <<EOF
2431 int main(void){ return 0; }
2432 EOF
2433 if test "$?" != 0; then
2434     echo "$cc is unable to create an executable file."
2435     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2436         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2437         echo "Only do this if you know what cross compiling means."
2438     fi
2439     die "C compiler test failed."
2440 fi
2441
2442 add_cppflags -D_ISOC99_SOURCE
2443 add_cxxflags -D__STDC_CONSTANT_MACROS
2444 check_cflags -std=c99
2445 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2446 #include <stdlib.h>
2447 EOF
2448 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2449 #include <stdlib.h>
2450 EOF
2451
2452 check_host_cflags -std=c99
2453 check_host_cflags -Wall
2454
2455 case "$arch" in
2456     alpha|ia64|mips|parisc|sparc)
2457         spic=$shared
2458     ;;
2459     x86)
2460         subarch="x86_32"
2461         check_cc <<EOF && subarch="x86_64"
2462         int test[(int)sizeof(char*) - 7];
2463 EOF
2464         if test "$subarch" = "x86_64"; then
2465             spic=$shared
2466         fi
2467     ;;
2468     ppc)
2469         check_cc <<EOF && subarch="ppc64"
2470         int test[(int)sizeof(char*) - 7];
2471 EOF
2472     ;;
2473 esac
2474
2475 enable $subarch
2476 enabled spic && enable pic
2477
2478 # OS specific
2479 case $target_os in
2480     haiku)
2481         prefix_default="/boot/common"
2482         network_extralibs="-lnetwork"
2483         host_libs=
2484         ;;
2485     sunos)
2486         FFSERVERLDFLAGS=""
2487         SHFLAGS='-shared -Wl,-h,$$(@F)'
2488         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2489         network_extralibs="-lsocket -lnsl"
2490         add_cppflags -D__EXTENSIONS__
2491         nm_opts='-P -g'
2492         ;;
2493     netbsd)
2494         disable symver
2495         oss_indev_extralibs="-lossaudio"
2496         oss_outdev_extralibs="-lossaudio"
2497         ;;
2498     openbsd)
2499         enable malloc_aligned
2500         # On OpenBSD 4.5. the compiler does not use PIC unless
2501         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2502         # however the generated executable will not do anything
2503         # (simply quits with exit-code 1, no crash, no output).
2504         # Thus explicitly enable PIC here.
2505         enable pic
2506         disable symver
2507         SHFLAGS='-shared'
2508         oss_indev_extralibs="-lossaudio"
2509         oss_outdev_extralibs="-lossaudio"
2510         ;;
2511     dragonfly)
2512         enable malloc_aligned
2513         disable symver
2514         ;;
2515     freebsd)
2516         enable malloc_aligned
2517         ;;
2518     bsd/os)
2519         add_extralibs -lpoll -lgnugetopt
2520         strip="strip -d"
2521         ;;
2522     darwin)
2523         enable malloc_aligned
2524         gas="gas-preprocessor.pl $cc"
2525         enabled ppc && add_asflags -force_cpusubtype_ALL
2526         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2527         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2528         strip="${strip} -x"
2529         add_ldflags -Wl,-dynamic,-search_paths_first
2530         SLIBSUF=".dylib"
2531         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2532         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2533         FFSERVERLDFLAGS=-Wl,-bind_at_load
2534         objformat="macho"
2535         enabled x86_64 && objformat="macho64"
2536         enabled_any pic shared ||
2537             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2538         ;;
2539     mingw32*)
2540         if test $target_os = "mingw32ce"; then
2541             disable network
2542         else
2543             target_os=mingw32
2544         fi
2545         LIBTARGET=i386
2546         if enabled x86_64; then
2547             enable malloc_aligned
2548             LIBTARGET=x64
2549         elif enabled arm; then
2550             LIBTARGET=arm-wince
2551         fi
2552         shlibdir_default="$bindir_default"
2553         SLIBPREF=""
2554         SLIBSUF=".dll"
2555         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2556         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2557         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2558         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2559         SLIB_INSTALL_LINKS=
2560         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2561         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2562         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'
2563         objformat="win32"
2564         enable dos_paths
2565         check_cflags -fno-common
2566         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2567                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2568                 die "ERROR: MinGW runtime version must be >= 3.15."
2569         add_cppflags -U__STRICT_ANSI__
2570         ;;
2571     cygwin*)
2572         target_os=cygwin
2573         shlibdir_default="$bindir_default"
2574         SLIBPREF="cyg"
2575         SLIBSUF=".dll"
2576         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2577         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2578         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2579         objformat="win32"
2580         enable dos_paths
2581         check_cflags -fno-common
2582         add_cppflags -U__STRICT_ANSI__
2583         ;;
2584     *-dos|freedos|opendos)
2585         network_extralibs="-lsocket"
2586         objformat="coff"
2587         enable dos_paths
2588         add_cppflags -U__STRICT_ANSI__
2589         ;;
2590     linux)
2591         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2592         enable dv1394
2593         ;;
2594     irix*)
2595         target_os=irix
2596         ranlib="echo ignoring ranlib"
2597         ;;
2598     os/2*)
2599         strip="lxlite -CS"
2600         ln_s="cp -f"
2601         objformat="aout"
2602         add_cppflags -D_GNU_SOURCE
2603         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2604         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2605         FFSERVERLDFLAGS=""
2606         LIBSUF="_s.a"
2607         SLIBPREF=""
2608         SLIBSUF=".dll"
2609         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2610         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2611         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2612           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2613           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2614           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2615           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2616           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2617         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2618           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2619         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2620         enable dos_paths
2621         ;;
2622     gnu/kfreebsd)
2623         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2624         ;;
2625     gnu)
2626         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2627         ;;
2628     qnx)
2629         add_cppflags -D_QNX_SOURCE
2630         network_extralibs="-lsocket"
2631         ;;
2632     symbian)
2633         SLIBSUF=".dll"
2634         enable dos_paths
2635         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2636         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2637         add_ldflags -Wl,--target1-abs,--no-undefined \
2638                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2639                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2640         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2641                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2642                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2643         ;;
2644     none)
2645         ;;
2646     *)
2647         die "Unknown OS '$target_os'."
2648         ;;
2649 esac
2650
2651 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2652
2653 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2654
2655 set_default $PATHS_LIST
2656
2657 # we need to build at least one lib type
2658 if ! enabled_any static shared; then
2659     cat <<EOF
2660 At least one library type must be built.
2661 Specify --enable-static to build the static libraries or --enable-shared to
2662 build the shared libraries as well. To only build the shared libraries specify
2663 --disable-static in addition to --enable-shared.
2664 EOF
2665     exit 1;
2666 fi
2667
2668 die_license_disabled() {
2669     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2670 }
2671
2672 die_license_disabled gpl libx264
2673 die_license_disabled gpl libxavs
2674 die_license_disabled gpl libxvid
2675 die_license_disabled gpl x11grab
2676
2677 die_license_disabled nonfree libfaac
2678
2679 die_license_disabled version3 libopencore_amrnb
2680 die_license_disabled version3 libopencore_amrwb
2681 die_license_disabled version3 libvo_aacenc
2682 die_license_disabled version3 libvo_amrwbenc
2683
2684 ! enabled gpl && enabled version2 && die "LGPLv2 mode is unsupported"
2685 enabled version3 && enabled version2 && ! enabled nonfree && die "GPLv2 (not v2+) and GPLv3 without --enable-nonfree"
2686
2687 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2688 enabled version2 && enabled gpl && enable gplv2
2689
2690 disabled optimizations || check_cflags -fomit-frame-pointer
2691
2692 enable_pic() {
2693     enable pic
2694     add_cppflags -DPIC
2695     add_cflags   -fPIC
2696     add_asflags  -fPIC
2697 }
2698
2699 enabled pic && enable_pic
2700
2701 check_cc <<EOF || die "Symbol mangling check failed."
2702 int ff_extern;
2703 EOF
2704 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2705 extern_prefix=${sym%%ff_extern*}
2706
2707 check_cc <<EOF && enable inline_asm
2708 void foo(void) { __asm__ volatile ("" ::); }
2709 EOF
2710
2711 _restrict=
2712 for restrict_keyword in restrict __restrict__ __restrict; do
2713     check_cc <<EOF && _restrict=$restrict_keyword && break
2714 void foo(char * $restrict_keyword p);
2715 EOF
2716 done
2717
2718 check_cc <<EOF && enable attribute_packed
2719 struct { int x; } __attribute__((packed)) x;
2720 EOF
2721
2722 check_cc <<EOF && enable attribute_may_alias
2723 union { int x; } __attribute__((may_alias)) x;
2724 EOF
2725
2726 check_cc <<EOF || die "endian test failed"
2727 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2728 EOF
2729 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2730
2731 if enabled alpha; then
2732
2733     check_cflags -mieee
2734
2735 elif enabled arm; then
2736
2737     enabled thumb && check_cflags -mthumb || check_cflags -marm
2738     nogas=die
2739
2740     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2741         enable vfp_args
2742     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2743         case "${cross_prefix:-$cc}" in
2744             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2745             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2746 __asm__ (".eabi_attribute 28, 1");
2747 int main(void) { return 0; }
2748 EOF
2749         esac
2750         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2751     fi
2752
2753     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2754     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2755     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2756     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2757     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2758     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2759     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2760
2761     enabled_all armv6t2 shared !pic && enable_pic
2762
2763 elif enabled mips; then
2764
2765     check_asm loongson '"dmult.g $1, $2, $3"'
2766     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2767
2768 elif enabled ppc; then
2769
2770     enable local_aligned_8 local_aligned_16
2771
2772     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2773     check_asm ibm_asm   '"add 0, 0, 0"'
2774     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2775     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2776
2777     # AltiVec flags: The FSF version of GCC differs from the Apple version
2778     if enabled altivec; then
2779         nogas=warn
2780         check_cflags -maltivec -mabi=altivec &&
2781         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2782         check_cflags -faltivec
2783
2784         # check if our compiler supports Motorola AltiVec C API
2785         check_cc <<EOF || disable altivec
2786 $inc_altivec_h
2787 int main(void) {
2788     vector signed int v1, v2, v3;
2789     v1 = vec_add(v2,v3);
2790     return 0;
2791 }
2792 EOF
2793
2794         # check if our compiler supports braces for vector declarations
2795         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2796 $inc_altivec_h
2797 int main (void) { (vector int) {1}; return 0; }
2798 EOF
2799     fi
2800
2801 elif enabled sparc; then
2802
2803     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2804         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2805
2806 elif enabled x86; then
2807
2808     enable local_aligned_8 local_aligned_16
2809
2810     # check whether EBP is available on x86
2811     # As 'i' is stored on the stack, this program will crash
2812     # if the base pointer is used to access it because the
2813     # base pointer is cleared in the inline assembly code.
2814     check_exec_crash <<EOF && enable ebp_available
2815     volatile int i=0;
2816     __asm__ volatile (
2817         "xorl %%ebp, %%ebp"
2818     ::: "%ebp");
2819     return i;
2820 EOF
2821
2822     # check whether EBX is available on x86
2823     check_asm ebx_available '""::"b"(0)' &&
2824         check_asm ebx_available '"":::"%ebx"'
2825
2826     # check whether xmm clobbers are supported
2827     check_asm xmm_clobbers '"":::"%xmm0"'
2828
2829     # check whether binutils is new enough to compile SSSE3/MMX2
2830     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2831     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2832
2833     check_asm bswap '"bswap %%eax" ::: "%eax"'
2834
2835     if ! disabled_any asm mmx yasm; then
2836         if check_cmd $yasmexe --version; then
2837             enabled x86_64 && yasm_extra="-m amd64"
2838             yasm_debug="-g dwarf2"
2839         elif check_cmd nasm -v; then
2840             yasmexe=nasm
2841             yasm_debug="-g -F dwarf"
2842             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2843         fi
2844
2845         YASMFLAGS="-f $objformat $yasm_extra"
2846         enabled pic               && append YASMFLAGS "-DPIC"
2847         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2848         case "$objformat" in
2849             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2850         esac
2851
2852         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2853             die "yasm not found, use --disable-yasm for a crippled build"
2854         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2855     fi
2856
2857     case "$cpu" in
2858         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2859             disable fast_clz
2860         ;;
2861     esac
2862
2863 fi
2864
2865 if enabled asm; then
2866     as=${gas:=$as}
2867     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2868         $nogas "GNU assembler not found, install gas-preprocessor"
2869 fi
2870
2871 check_ldflags -Wl,--as-needed
2872
2873 if check_func dlopen; then
2874     ldl=
2875 elif check_func dlopen -ldl; then
2876     ldl=-ldl
2877 fi
2878
2879 if enabled network; then
2880     check_type "sys/types.h sys/socket.h" socklen_t
2881     check_type netdb.h "struct addrinfo"
2882     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2883     check_type netinet/in.h "struct sockaddr_in6"
2884     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2885     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2886     # Prefer arpa/inet.h over winsock2
2887     if check_header arpa/inet.h ; then
2888         check_func closesocket
2889     elif check_header winsock2.h ; then
2890         check_func_headers winsock2.h closesocket -lws2 && \
2891             network_extralibs="-lws2" || \
2892         { check_func_headers winsock2.h closesocket -lws2_32 && \
2893             network_extralibs="-lws2_32"; }
2894         check_type ws2tcpip.h socklen_t
2895         check_type ws2tcpip.h "struct addrinfo"
2896         check_type ws2tcpip.h "struct ipv6_mreq"
2897         check_type ws2tcpip.h "struct sockaddr_in6"
2898         check_type ws2tcpip.h "struct sockaddr_storage"
2899         check_struct winsock2.h "struct sockaddr" sa_len
2900     else
2901         disable network
2902     fi
2903 fi
2904
2905 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2906 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2907
2908 check_func  fcntl
2909 check_func  fork
2910 check_func  getaddrinfo $network_extralibs
2911 check_func  gethrtime
2912 check_func  getrusage
2913 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2914 check_func  inet_aton $network_extralibs
2915 check_func  isatty
2916 check_func  localtime_r
2917 check_func  ${malloc_prefix}memalign            && enable memalign
2918 check_func  mkstemp
2919 check_func  mmap
2920 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2921 check_func  setrlimit
2922 check_func  strerror_r
2923 check_func  strptime
2924 check_func  strtok_r
2925 check_func_headers conio.h kbhit
2926 check_func_headers windows.h PeekNamedPipe
2927 check_func_headers io.h setmode
2928 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2929 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2930 check_func_headers windows.h GetProcessTimes
2931 check_func_headers windows.h MapViewOfFile
2932 check_func_headers windows.h VirtualAlloc
2933
2934 check_header dlfcn.h
2935 check_header dxva2api.h -D_WIN32_WINNT=0x0600
2936 check_header libcrystalhd/libcrystalhd_if.h
2937 check_header malloc.h
2938 check_header poll.h
2939 check_header sys/mman.h
2940 check_header sys/resource.h
2941 check_header sys/select.h
2942 check_header termios.h
2943 check_header vdpau/vdpau.h
2944 check_header vdpau/vdpau_x11.h
2945 check_header X11/extensions/XvMClib.h
2946
2947 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2948 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2949
2950 # check for some common methods of building with pthread support
2951 # do this before the optional library checks as some of them require pthreads
2952 if ! disabled pthreads && ! enabled w32threads; then
2953     enable pthreads
2954     if check_func pthread_create; then
2955         :
2956     elif check_func pthread_create -pthread; then
2957         add_cflags -pthread
2958         add_extralibs -pthread
2959     elif check_func pthread_create -pthreads; then
2960         add_cflags -pthreads
2961         add_extralibs -pthreads
2962     elif check_func pthread_create -lpthreadGC2; then
2963         add_extralibs -lpthreadGC2
2964     elif ! check_lib pthread.h pthread_create -lpthread; then
2965         disable pthreads
2966     fi
2967 fi
2968
2969 for thread in $THREADS_LIST; do
2970     if enabled $thread; then
2971         test -n "$thread_type" &&
2972             die "ERROR: Only one thread type must be selected." ||
2973             thread_type="$thread"
2974     fi
2975 done
2976
2977 check_lib math.h sin -lm && LIBM="-lm"
2978 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2979 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2980
2981 check_mathfunc exp2
2982 check_mathfunc exp2f
2983 check_mathfunc llrint
2984 check_mathfunc llrintf
2985 check_mathfunc log2
2986 check_mathfunc log2f
2987 check_mathfunc lrint
2988 check_mathfunc lrintf
2989 check_mathfunc round
2990 check_mathfunc roundf
2991 check_mathfunc trunc
2992 check_mathfunc truncf
2993
2994 # these are off by default, so fail if requested and not available
2995 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2996 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2997 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2998 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2999 enabled libdirac   && require_pkg_config dirac                          \
3000     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3001     "dirac_decoder_init dirac_encoder_init"
3002 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3003 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3004 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3005 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3006 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3007 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3008 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3009 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3010 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3011 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3012 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3013 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3014 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3015     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3016     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3017 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3018 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3019 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3020 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3021 enabled libvpx     && {
3022     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3023                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3024     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3025                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3026 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3027                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
3028                         die "ERROR: libx264 version must be >= 0.115."; }
3029 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3030 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3031 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3032                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3033                         die "ERROR: openal not found"; } &&
3034                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3035                         die "ERROR: openal version must be 1.1 or compatible"; }
3036 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
3037
3038 SDL_CONFIG="${cross_prefix}sdl-config"
3039 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3040     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3041     enable sdl &&
3042     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3043 else
3044   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3045     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3046     sdl_libs=$("${SDL_CONFIG}" --libs)
3047     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3048     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3049     enable sdl &&
3050     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3051   fi
3052 fi
3053 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3054
3055 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3056
3057 check_header linux/fb.h
3058 check_header linux/videodev.h
3059 check_header linux/videodev2.h
3060 check_header sys/videoio.h
3061
3062 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3063 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3064 # w32api 3.12 had it defined wrong
3065 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3066
3067 check_type "dshow.h" IBaseFilter
3068
3069 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3070 { check_header dev/bktr/ioctl_meteor.h &&
3071   check_header dev/bktr/ioctl_bt848.h; } ||
3072 { check_header machine/ioctl_meteor.h &&
3073   check_header machine/ioctl_bt848.h; } ||
3074 { check_header dev/video/meteor/ioctl_meteor.h &&
3075   check_header dev/video/bktr/ioctl_bt848.h; } ||
3076 check_header dev/ic/bt8xx.h
3077
3078 check_header sndio.h
3079 if check_struct sys/soundcard.h audio_buf_info bytes; then
3080     enable_safe sys/soundcard.h
3081 else
3082     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3083     #include <sys/soundcard.h>
3084     audio_buf_info abc;
3085 EOF
3086 fi
3087 check_header soundcard.h
3088
3089 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3090
3091 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3092
3093 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3094
3095 enabled x11grab                         &&
3096 check_header X11/Xlib.h                 &&
3097 check_header X11/extensions/XShm.h      &&
3098 check_header X11/extensions/Xfixes.h    &&
3099 check_func XOpenDisplay -lX11           &&
3100 check_func XShmCreateImage -lX11 -lXext &&
3101 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3102
3103 if ! disabled vaapi; then
3104     check_lib va/va.h vaInitialize -lva && {
3105         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3106         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3107     } || disable vaapi
3108 fi
3109
3110 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3111 check_cpp_condition \
3112     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3113     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3114       disable vdpau; }
3115 fi
3116
3117 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3118
3119 # add some useful compiler flags if supported
3120 check_cflags -Wdeclaration-after-statement
3121 check_cflags -Wall
3122 check_cflags -Wno-parentheses
3123 check_cflags -Wno-switch
3124 check_cflags -Wno-format-zero-length
3125 check_cflags -Wdisabled-optimization
3126 check_cflags -Wpointer-arith
3127 check_cflags -Wredundant-decls
3128 check_cflags -Wno-pointer-sign
3129 check_cflags -Wcast-qual
3130 check_cflags -Wwrite-strings
3131 check_cflags -Wtype-limits
3132 check_cflags -Wundef
3133 check_cflags -Wmissing-prototypes
3134 check_cflags -Wno-pointer-to-int-cast
3135 enabled extra_warnings && check_cflags -Winline
3136
3137 # add some linker flags
3138 check_ldflags -Wl,--warn-common
3139 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3140 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3141
3142 echo "X{};" > $TMPV
3143 if test_ldflags -Wl,--version-script,$TMPV; then
3144     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3145     check_cc <<EOF && enable symver_asm_label
3146 void ff_foo(void) __asm__ ("av_foo@VERSION");
3147 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3148 EOF
3149     check_cc <<EOF && enable symver_gnu_asm
3150 __asm__(".symver ff_foo,av_foo@VERSION");
3151 void ff_foo(void) {}
3152 EOF
3153 fi
3154
3155 if [ -n "$optflags" ]; then
3156     add_cflags $optflags
3157 elif enabled small; then
3158     add_cflags $size_cflags
3159 elif enabled optimizations; then
3160     add_cflags $speed_cflags
3161 else
3162     add_cflags $noopt_cflags
3163 fi
3164 check_cflags -fno-math-errno
3165 check_cflags -fno-signed-zeros
3166
3167 if enabled icc; then
3168     # Just warnings, no remarks
3169     check_cflags -w1
3170     # -wd: Disable following warnings
3171     # 144, 167, 556: -Wno-pointer-sign
3172     # 1292: attribute "foo" ignored
3173     # 10006: ignoring unknown option -fno-signed-zeros
3174     # 10148: ignoring unknown option -Wno-parentheses
3175     # 10156: ignoring option '-W'; no argument required
3176     check_cflags -wd144,167,556,1292,10006,10148,10156
3177     # 11030: Warning unknown option --as-needed
3178     # 10156: ignoring option '-export'; no argument required
3179     check_ldflags -wd10156,11030
3180     # Allow to compile with optimizations
3181     check_ldflags -march=$cpu
3182     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3183     enable ebp_available
3184     if enabled x86_32; then
3185         test ${icc_version%%.*} -ge 11 && \
3186             check_cflags -falign-stack=maintain-16-byte || \
3187             disable aligned_stack
3188     fi
3189 elif enabled ccc; then
3190     # disable some annoying warnings
3191     add_cflags -msg_disable cvtu32to64
3192     add_cflags -msg_disable embedcomment
3193     add_cflags -msg_disable needconstext
3194     add_cflags -msg_disable nomainieee
3195     add_cflags -msg_disable ptrmismatch1
3196     add_cflags -msg_disable unreachcode
3197 elif enabled gcc; then
3198     check_cflags -fno-tree-vectorize
3199     check_cflags -Werror=implicit-function-declaration
3200     check_cflags -Werror=missing-prototypes
3201 elif enabled llvm_gcc; then
3202     check_cflags -mllvm -stack-alignment=16
3203 elif enabled clang; then
3204     check_cflags -mllvm -stack-alignment=16
3205     check_cflags -Qunused-arguments
3206 elif enabled armcc; then
3207     # 2523: use of inline assembler is deprecated
3208     add_cflags -W${armcc_opt},--diag_suppress=2523
3209     add_cflags -W${armcc_opt},--diag_suppress=1207
3210     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3211     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3212     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3213     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3214 elif enabled tms470; then
3215     add_cflags -pds=824 -pds=837
3216 elif enabled pathscale; then
3217     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3218 fi
3219
3220 enabled_any $THREADS_LIST      && enable threads
3221
3222 check_deps $CONFIG_LIST       \
3223            $CONFIG_EXTRA      \
3224            $HAVE_LIST         \
3225            $DECODER_LIST      \
3226            $ENCODER_LIST      \
3227            $HWACCEL_LIST      \
3228            $PARSER_LIST       \
3229            $BSF_LIST          \
3230            $DEMUXER_LIST      \
3231            $MUXER_LIST        \
3232            $FILTER_LIST       \
3233            $INDEV_LIST        \
3234            $OUTDEV_LIST       \
3235            $PROTOCOL_LIST     \
3236            $ACODEC_TESTS      \
3237            $VCODEC_TESTS      \
3238            $LAVF_TESTS        \
3239            $LAVFI_TESTS       \
3240            $SEEK_TESTS        \
3241
3242 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3243
3244 if test $target_os == "haiku"; then
3245     disable memalign
3246     disable posix_memalign
3247 fi
3248
3249 ! enabled_any memalign posix_memalign malloc_aligned &&
3250     enabled_any $need_memalign && enable memalign_hack
3251
3252 echo "install prefix            $prefix"
3253 echo "source path               $source_path"
3254 echo "C compiler                $cc"
3255 echo "ARCH                      $arch ($cpu)"
3256 if test "$build_suffix" != ""; then
3257     echo "build suffix              $build_suffix"
3258 fi
3259 if test "$progs_suffix" != ""; then
3260     echo "progs suffix              $progs_suffix"
3261 fi
3262 if test "$extra_version" != ""; then
3263     echo "version string suffix     $extra_version"
3264 fi
3265 echo "big-endian                ${bigendian-no}"
3266 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3267 if enabled x86; then
3268     echo "${yasmexe}                      ${yasm-no}"
3269     echo "MMX enabled               ${mmx-no}"
3270     echo "MMX2 enabled              ${mmx2-no}"
3271     echo "3DNow! enabled            ${amd3dnow-no}"
3272     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3273     echo "SSE enabled               ${sse-no}"
3274     echo "SSSE3 enabled             ${ssse3-no}"
3275     echo "AVX enabled               ${avx-no}"
3276     echo "CMOV enabled              ${cmov-no}"
3277     echo "CMOV is fast              ${fast_cmov-no}"
3278     echo "EBX available             ${ebx_available-no}"
3279     echo "EBP available             ${ebp_available-no}"
3280 fi
3281 if enabled arm; then
3282     echo "ARMv5TE enabled           ${armv5te-no}"
3283     echo "ARMv6 enabled             ${armv6-no}"
3284     echo "ARMv6T2 enabled           ${armv6t2-no}"
3285     echo "ARM VFP enabled           ${armvfp-no}"
3286     echo "IWMMXT enabled            ${iwmmxt-no}"
3287     echo "NEON enabled              ${neon-no}"
3288 fi
3289 if enabled mips; then
3290     echo "MMI enabled               ${mmi-no}"
3291 fi
3292 if enabled ppc; then
3293     echo "AltiVec enabled           ${altivec-no}"
3294     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3295     echo "dcbzl available           ${dcbzl-no}"
3296 fi
3297 if enabled sparc; then
3298     echo "VIS enabled               ${vis-no}"
3299 fi
3300 echo "debug symbols             ${debug-no}"
3301 echo "strip symbols             ${stripping-no}"
3302 echo "optimize for size         ${small-no}"
3303 echo "optimizations             ${optimizations-no}"
3304 echo "static                    ${static-no}"
3305 echo "shared                    ${shared-no}"
3306 echo "postprocessing support    ${postproc-no}"
3307 echo "new filter support        ${avfilter-no}"
3308 echo "network support           ${network-no}"
3309 echo "threading support         ${thread_type-no}"
3310 echo "SDL support               ${sdl-no}"
3311 echo "Sun medialib support      ${mlib-no}"
3312 echo "libdxva2 enabled          ${dxva2-no}"
3313 echo "libva enabled             ${vaapi-no}"
3314 echo "libvdpau enabled          ${vdpau-no}"
3315 echo "AVISynth enabled          ${avisynth-no}"
3316 echo "libcelt enabled           ${libcelt-no}"
3317 echo "frei0r enabled            ${frei0r-no}"
3318 echo "libdc1394 support         ${libdc1394-no}"
3319 echo "libdirac enabled          ${libdirac-no}"
3320 echo "libfaac enabled           ${libfaac-no}"
3321 echo "libgsm enabled            ${libgsm-no}"
3322 echo "libmp3lame enabled        ${libmp3lame-no}"
3323 echo "libnut enabled            ${libnut-no}"
3324 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3325 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3326 echo "libopencv support         ${libopencv-no}"
3327 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3328 echo "librtmp enabled           ${librtmp-no}"
3329 echo "libschroedinger enabled   ${libschroedinger-no}"
3330 echo "libspeex enabled          ${libspeex-no}"
3331 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3332 echo "libtheora enabled         ${libtheora-no}"
3333 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3334 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3335 echo "libvorbis enabled         ${libvorbis-no}"
3336 echo "libvpx enabled            ${libvpx-no}"
3337 echo "libx264 enabled           ${libx264-no}"
3338 echo "libxavs enabled           ${libxavs-no}"
3339 echo "libxvid enabled           ${libxvid-no}"
3340 echo "openal enabled            ${openal-no}"
3341 echo "zlib enabled              ${zlib-no}"
3342 echo "bzlib enabled             ${bzlib-no}"
3343 echo
3344
3345 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3346     echo "Enabled ${type}s:"
3347     eval list=\$$(toupper $type)_LIST
3348     print_enabled '_*' $list | sort | pr -r -3 -t
3349     echo
3350 done
3351
3352 license="LGPL version 2.1 or later"
3353 if enabled nonfree; then
3354     license="nonfree and unredistributable"
3355 elif enabled gplv3; then
3356     license="GPL version 3 or later"
3357 elif enabled gplv2; then
3358     license="GPL version 2"
3359 elif enabled lgplv3; then
3360     license="LGPL version 3 or later"
3361 elif enabled gpl; then
3362     license="GPL version 2 or later"
3363 fi
3364
3365 echo "License: $license"
3366
3367 echo "Creating config.mak and config.h..."
3368
3369 test -e Makefile || $ln_s "$source_path/Makefile" .
3370
3371 enabled stripping || strip="echo skipping strip"
3372
3373 config_files="$TMPH config.mak"
3374
3375 cat > config.mak <<EOF
3376 # Automatically generated by configure - do not modify!
3377 ifndef FFMPEG_CONFIG_MAK
3378 FFMPEG_CONFIG_MAK=1
3379 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3380 prefix=$prefix
3381 LIBDIR=\$(DESTDIR)$libdir
3382 SHLIBDIR=\$(DESTDIR)$shlibdir
3383 INCDIR=\$(DESTDIR)$incdir
3384 BINDIR=\$(DESTDIR)$bindir
3385 DATADIR=\$(DESTDIR)$datadir
3386 MANDIR=\$(DESTDIR)$mandir
3387 SRC_PATH=$source_path
3388 ifndef MAIN_MAKEFILE
3389 SRC_PATH:=\$(SRC_PATH:.%=..%)
3390 endif
3391 CC_IDENT=$cc_ident
3392 ARCH=$arch
3393 CC=$cc
3394 CXX=$cxx
3395 AS=$as
3396 LD=$ld
3397 DEPCC=$dep_cc
3398 YASM=$yasmexe
3399 YASMDEP=$yasmexe
3400 AR=$ar
3401 RANLIB=$ranlib
3402 CP=cp -p
3403 LN_S=$ln_s
3404 STRIP=$strip
3405 CPPFLAGS=$CPPFLAGS
3406 CFLAGS=$CFLAGS
3407 CXXFLAGS=$CXXFLAGS
3408 ASFLAGS=$ASFLAGS
3409 AS_O=$CC_O
3410 CC_O=$CC_O
3411 CXX_O=$CXX_O
3412 LDFLAGS=$LDFLAGS
3413 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3414 SHFLAGS=$SHFLAGS
3415 YASMFLAGS=$YASMFLAGS
3416 BUILDSUF=$build_suffix
3417 PROGSSUF=$progs_suffix
3418 FULLNAME=$FULLNAME
3419 LIBPREF=$LIBPREF
3420 LIBSUF=$LIBSUF
3421 LIBNAME=$LIBNAME
3422 SLIBPREF=$SLIBPREF
3423 SLIBSUF=$SLIBSUF
3424 EXESUF=$EXESUF
3425 EXTRA_VERSION=$extra_version
3426 DEPFLAGS=$DEPFLAGS
3427 CCDEP=$CCDEP
3428 CXXDEP=$CXXDEP
3429 ASDEP=$ASDEP
3430 CC_DEPFLAGS=$CC_DEPFLAGS
3431 AS_DEPFLAGS=$AS_DEPFLAGS
3432 HOSTCC=$host_cc
3433 HOSTCFLAGS=$host_cflags
3434 HOSTEXESUF=$HOSTEXESUF
3435 HOSTLDFLAGS=$host_ldflags
3436 HOSTLIBS=$host_libs
3437 TARGET_EXEC=$target_exec
3438 TARGET_PATH=$target_path
3439 SDL_LIBS=$sdl_libs
3440 SDL_CFLAGS=$sdl_cflags
3441 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3442 EXTRALIBS=$extralibs
3443 INSTALL=$install
3444 LIBTARGET=${LIBTARGET}
3445 SLIBNAME=${SLIBNAME}
3446 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3447 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3448 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3449 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3450 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3451 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3452 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3453 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3454 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3455 EOF
3456
3457 get_version(){
3458     name=$1
3459     file=$source_path/$2
3460     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3461     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3462     lcname=$(tolower $name)
3463     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3464     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3465 }
3466
3467 get_version LIBSWSCALE  libswscale/swscale.h
3468 get_version LIBPOSTPROC libpostproc/postprocess.h
3469 get_version LIBAVCODEC  libavcodec/version.h
3470 get_version LIBAVDEVICE libavdevice/avdevice.h
3471 get_version LIBAVFORMAT libavformat/version.h
3472 get_version LIBAVUTIL   libavutil/avutil.h
3473 get_version LIBAVFILTER libavfilter/avfilter.h
3474
3475 cat > $TMPH <<EOF
3476 /* Automatically generated by configure - do not modify! */
3477 #ifndef FFMPEG_CONFIG_H
3478 #define FFMPEG_CONFIG_H
3479 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3480 #define FFMPEG_LICENSE "$(c_escape $license)"
3481 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3482 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3483 #define CC_TYPE "$cc_type"
3484 #define CC_VERSION $cc_version
3485 #define restrict $_restrict
3486 #define EXTERN_PREFIX "${extern_prefix}"
3487 #define EXTERN_ASM ${extern_prefix}
3488 #define SLIBSUF "$SLIBSUF"
3489 EOF
3490
3491 test -n "$malloc_prefix" &&
3492     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3493
3494 if enabled small || disabled optimizations; then
3495     echo "#undef  av_always_inline"  >> $TMPH
3496     if enabled small; then
3497         echo "#define av_always_inline inline"  >> $TMPH
3498     else
3499         echo "#define av_always_inline av_unused"  >> $TMPH
3500     fi
3501 fi
3502
3503 if enabled yasm; then
3504     append config_files $TMPASM
3505     printf '' >$TMPASM
3506 fi
3507
3508 print_config ARCH_   "$config_files" $ARCH_LIST
3509 print_config HAVE_   "$config_files" $HAVE_LIST
3510 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3511                                      $CONFIG_EXTRA      \
3512                                      $DECODER_LIST      \
3513                                      $ENCODER_LIST      \
3514                                      $HWACCEL_LIST      \
3515                                      $PARSER_LIST       \
3516                                      $BSF_LIST          \
3517                                      $DEMUXER_LIST      \
3518                                      $MUXER_LIST        \
3519                                      $FILTER_LIST       \
3520                                      $PROTOCOL_LIST     \
3521                                      $INDEV_LIST        \
3522                                      $OUTDEV_LIST       \
3523
3524 cat >>config.mak <<EOF
3525 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3526 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3527 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3528 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3529 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3530 EOF
3531
3532 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3533 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3534
3535 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3536 cp_if_changed $TMPH config.h
3537 touch .config
3538
3539 enabled yasm && cp_if_changed $TMPASM config.asm
3540
3541 cat > $TMPH <<EOF
3542 /* Generated by ffconf */
3543 #ifndef AVUTIL_AVCONFIG_H
3544 #define AVUTIL_AVCONFIG_H
3545 EOF
3546
3547 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3548
3549 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3550
3551 cp_if_changed $TMPH libavutil/avconfig.h
3552
3553 test -n "$WARNINGS" && printf "\n$WARNINGS"
3554
3555 # build pkg-config files
3556
3557 pkgconfig_generate(){
3558 name=$1
3559 shortname=${name#lib}${build_suffix}
3560 comment=$2
3561 version=$3
3562 libs=$4
3563 requires=$5
3564 enabled ${name#lib} || return 0
3565 mkdir -p $name
3566 cat <<EOF > $name/$name.pc
3567 prefix=$prefix
3568 exec_prefix=\${prefix}
3569 libdir=$libdir
3570 includedir=$incdir
3571
3572 Name: $name
3573 Description: $comment
3574 Version: $version
3575 Requires: $(enabled shared || echo $requires)
3576 Requires.private: $(enabled shared && echo $requires)
3577 Conflicts:
3578 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3579 Libs.private: $(enabled shared && echo $libs)
3580 Cflags: -I\${includedir}
3581 EOF
3582 cat <<EOF > $name/$name-uninstalled.pc
3583 prefix=
3584 exec_prefix=
3585 libdir=\${pcfiledir}
3586 includedir=${source_path}
3587
3588 Name: $name
3589 Description: $comment
3590 Version: $version
3591 Requires: $requires
3592 Conflicts:
3593 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3594 Cflags: -I\${includedir}
3595 EOF
3596 }
3597
3598 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3599 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3600 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3601 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3602 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3603 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3604 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"