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   echo "Usage: configure [options]"
  59   echo "Options: [defaults in brackets after descriptions]"
  60   echo
  61   echo "Standard options:"
  62   echo "  --help                   print this message"
  63   echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  64   echo "  --disable-logging        do not log configure debug information"
  65   echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  66   echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
  67   echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
  68   echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  69   echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  70   echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  71   echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  72   echo
  73   echo "Configuration options:"
  74   echo "  --disable-static         do not build static libraries [no]"
  75   echo "  --enable-shared          build shared libraries [no]"
  76   echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  77   echo "                           and binaries will be under GPL [no]"
  78   echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  79   echo "                           and binaries will be unredistributable [no]"
  80   echo "  --disable-ffmpeg         disable ffmpeg build"
  81   echo "  --disable-ffplay         disable ffplay build"
  82   echo "  --disable-ffserver       disable ffserver build"
  83   echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  84   echo "  --enable-avfilter        video filter support [no]"
  85   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  86   echo "  --enable-beosthreads     use BeOS threads [no]"
  87   echo "  --enable-os2threads      use OS/2 threads [no]"
  88   echo "  --enable-pthreads        use pthreads [no]"
  89   echo "  --enable-w32threads      use Win32 threads [no]"
  90   echo "  --enable-x11grab         enable X11 grabbing [no]"
  91   echo "  --enable-vdpau           enable VDPAU support [no]"
  92   echo "  --disable-network        disable network support [no]"
  93   echo "  --disable-ipv6           disable IPv6 support [no]"
  94   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  95   echo "  --enable-gray            enable full grayscale support (slower color)"
  96   echo "  --enable-fastdiv         enable table-based division"
  97   echo "  --enable-small           optimize for size instead of speed"
  98   echo "  --disable-aandct         disable AAN DCT code"
  99   echo "  --disable-fft            disable FFT code"
 100   echo "  --disable-golomb         disable Golomb code"
 101   echo "  --disable-mdct           disable MDCT code"
 102   echo "  --disable-rdft           disable RDFT code"
 103   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 104   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 105   echo "  --enable-beos-netserver  enable BeOS netserver"
 106   echo "  --disable-encoder=NAME   disable encoder NAME"
 107   echo "  --enable-encoder=NAME    enable encoder NAME"
 108   echo "  --disable-encoders       disable all encoders"
 109   echo "  --disable-decoder=NAME   disable decoder NAME"
 110   echo "  --enable-decoder=NAME    enable decoder NAME"
 111   echo "  --disable-decoders       disable all decoders"
 112   echo "  --disable-muxer=NAME     disable muxer NAME"
 113   echo "  --enable-muxer=NAME      enable muxer NAME"
 114   echo "  --disable-muxers         disable all muxers"
 115   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 116   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 117   echo "  --disable-demuxers       disable all demuxers"
 118   echo "  --enable-parser=NAME     enable parser NAME"
 119   echo "  --disable-parser=NAME    disable parser NAME"
 120   echo "  --disable-parsers        disable all parsers"
 121   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 122   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 123   echo "  --disable-bsfs           disable all bitstream filters"
 124   echo "  --enable-protocol=NAME   enable protocol NAME"
 125   echo "  --disable-protocol=NAME  disable protocol NAME"
 126   echo "  --disable-protocols      disable all protocols"
 127   echo "  --disable-indevs         disable input devices"
 128   echo "  --disable-outdevs        disable output devices"
 129   echo "  --disable-devices        disable all devices"
 130   echo "  --enable-filter=NAME     enable filter NAME"
 131   echo "  --disable-filter=NAME    disable filter NAME"
 132   echo "  --disable-filters        disable all filters"
 133   echo "  --list-decoders          show all available decoders"
 134   echo "  --list-encoders          show all available encoders"
 135   echo "  --list-muxers            show all available muxers"
 136   echo "  --list-demuxers          show all available demuxers"
 137   echo "  --list-parsers           show all available parsers"
 138   echo "  --list-protocols         show all available protocols"
 139   echo "  --list-bsfs              show all available bitstream filters"
 140   echo "  --list-indevs            show all available input devices"
 141   echo "  --list-outdevs           show all available output devices"
 142   echo "  --list-filters           show all available filters"
 143   echo
 144   echo "External library support:"
 145   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 146   echo "  --enable-bzlib           enable bzlib [autodetect]"
 147   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
 148   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
 149   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 150   echo "                           and libraw1394 [no]"
 151   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 152   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 153   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 154   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 155   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 156   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 157   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 158   echo "                           native (de)muxer exists [no]"
 159   echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
 160   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 161   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 162   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 163   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 164   echo "                           native implementation exists [no]"
 165   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 166   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 167   echo "                           native MPEG-4/Xvid encoder exists [no]"
 168   echo "  --enable-mlib            enable Sun medialib [no]"
 169   echo "  --enable-zlib            enable zlib [autodetect]"
 170   echo ""
 171   echo "Advanced options (experts only):"
 172   echo "  --source-path=PATH       path to source code [$source_path]"
 173   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 174   echo "  --enable-cross-compile   assume a cross-compiler is used"
 175   echo "  --sysroot=PATH           root of cross-build tree"
 176   echo "  --sysinclude=PATH        location of cross-build system headers"
 177   echo "  --target-os=OS           compiler targets OS [$target_os]"
 178   echo "  --target-exec=CMD        command to run executables on target"
 179   echo "  --target-path=DIR        path to view of build directory on target"
 180   echo "  --nm=NM                  use nm tool"
 181   echo "  --cc=CC                  use C compiler CC [$cc_default]"
 182   echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
 183   echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
 184   echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
 185   echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
 186   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 187   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 188   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 189   echo "  --extra-version=STRING   version string suffix []"
 190   echo "  --build-suffix=SUFFIX    library name suffix []"
 191   echo "  --arch=ARCH              select architecture [$arch]"
 192   echo "  --cpu=CPU                select the minimum required CPU (affects"
 193   echo "                           instruction selection, may crash on older CPUs)"
 194   echo "  --enable-powerpc-perf    enable performance report on PPC"
 195   echo "                           (requires enabling PMC)"
 196   echo "  --disable-altivec        disable AltiVec optimizations"
 197   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 198   echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
 199   echo "  --disable-mmx            disable MMX optimizations"
 200   echo "  --disable-mmx2           disable MMX2 optimizations"
 201   echo "  --disable-sse            disable SSE optimizations"
 202   echo "  --disable-ssse3          disable SSSE3 optimizations"
 203   echo "  --disable-armv5te        disable armv5te optimizations"
 204   echo "  --disable-armv6          disable armv6 optimizations"
 205   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 206   echo "  --disable-armvfp         disable ARM VFP optimizations"
 207   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 208   echo "  --disable-mmi            disable MMI optimizations"
 209   echo "  --disable-neon           disable neon optimizations"
 210   echo "  --disable-vis            disable VIS optimizations"
 211   echo "  --disable-yasm           disable use of yasm assembler"
 212   echo
 213   echo "Developer options (useful when working on FFmpeg itself):"
 214   echo "  --disable-debug          disable debugging symbols"
 215   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 216   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 217   echo "  --disable-optimizations  disable compiler optimizations"
 218   echo "  --enable-extra-warnings  enable more compiler warnings"
 219   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 220   echo ""
 221   echo "NOTE: Object files are built at the place where configure is launched."
 222   exit 0
 223 }
 224
 225 log(){
 226     echo "$@" >> $logfile
 227 }
 228
 229 log_file(){
 230     log BEGIN $1
 231     pr -n -t $1 >> $logfile
 232     log END $1
 233 }
 234
 235 echolog(){
 236     log "$@"
 237     echo "$@"
 238 }
 239
 240 die(){
 241     echolog "$@"
 242     cat <<EOF
 243 If you think configure made a mistake, make sure you are using the latest
 244 version from SVN.  If the latest version fails, report the problem to the
 245 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 246 EOF
 247     if disabled logging; then
 248         cat <<EOF
 249 Rerun configure with logging enabled (do not use --disable-logging), and
 250 include the log this produces with your report.
 251 EOF
 252     else
 253 cat <<EOF
 254 Include the log file "$logfile" produced by configure as this will help
 255 solving the problem.
 256 EOF
 257     fi
 258     exit 1
 259 }
 260
 261 # Avoid locale weirdness, besides we really just want to translate ASCII.
 262 toupper(){
 263     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 264 }
 265
 266 tolower(){
 267     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 268 }
 269
 270 c_escape(){
 271     echo "$*" | sed 's/["\\]/\\\0/g'
 272 }
 273
 274 set_all(){
 275     value=$1
 276     shift
 277     for var in $*; do
 278         eval $var=$value
 279     done
 280 }
 281
 282 set_weak(){
 283     value=$1
 284     shift
 285     for var; do
 286         eval : \${$var:=$value}
 287     done
 288 }
 289
 290 pushvar(){
 291     for var in $*; do
 292         eval level=\${${var}_level:=0}
 293         eval ${var}_${level}="\$$var"
 294         eval ${var}_level=$(($level+1))
 295     done
 296 }
 297
 298 popvar(){
 299     for var in $*; do
 300         eval level=\${${var}_level:-0}
 301         test $level = 0 && continue
 302         eval level=$(($level-1))
 303         eval $var="\${${var}_${level}}"
 304         eval ${var}_level=$level
 305         eval unset ${var}_${level}
 306     done
 307 }
 308
 309 enable(){
 310     set_all yes $*
 311 }
 312
 313 disable(){
 314     set_all no $*
 315 }
 316
 317 enable_weak(){
 318     set_weak yes $*
 319 }
 320
 321 disable_weak(){
 322     set_weak no $*
 323 }
 324
 325 enable_safe(){
 326     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 327 }
 328
 329 disable_safe(){
 330     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 331 }
 332
 333 do_enable_deep(){
 334     for var; do
 335         enabled $var && continue
 336         eval sel="\$${var}_select"
 337         eval sgs="\$${var}_suggest"
 338         pushvar var sgs
 339         enable_deep $sel
 340         popvar sgs
 341         enable_deep_weak $sgs
 342         popvar var
 343     done
 344 }
 345
 346 enable_deep(){
 347     do_enable_deep $*
 348     enable $*
 349 }
 350
 351 enable_deep_weak(){
 352     do_enable_deep $*
 353     enable_weak $*
 354 }
 355
 356 enabled(){
 357     test "${1#!}" = "$1" && op== || op=!=
 358     eval test "x\$${1#!}" $op "xyes"
 359 }
 360
 361 disabled(){
 362     test "${1#!}" = "$1" && op== || op=!=
 363     eval test "x\$${1#!}" $op "xno"
 364 }
 365
 366 enabled_all(){
 367     for opt; do
 368         enabled $opt || return 1
 369     done
 370 }
 371
 372 disabled_all(){
 373     for opt; do
 374         disabled $opt || return 1
 375     done
 376 }
 377
 378 enabled_any(){
 379     for opt; do
 380         enabled $opt && return 0
 381     done
 382 }
 383
 384 disabled_any(){
 385     for opt; do
 386         disabled $opt && return 0
 387     done
 388     return 1
 389 }
 390
 391 set_default(){
 392     for opt; do
 393         eval : \${$opt:=\$${opt}_default}
 394     done
 395 }
 396
 397 is_in(){
 398     value=$1
 399     shift
 400     for var in $*; do
 401         [ $var = $value ] && return 0
 402     done
 403     return 1
 404 }
 405
 406 check_deps(){
 407     for cfg; do
 408         cfg="${cfg#!}"
 409         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 410         disabled ${cfg}_checking && continue
 411         enable ${cfg}_checking
 412
 413         eval dep_all="\$${cfg}_deps"
 414         eval dep_any="\$${cfg}_deps_any"
 415         eval dep_sel="\$${cfg}_select"
 416         eval dep_sgs="\$${cfg}_suggest"
 417
 418         pushvar cfg dep_all dep_any dep_sel dep_sgs
 419         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 420         popvar cfg dep_all dep_any dep_sel dep_sgs
 421
 422         enabled_all  $dep_all || disable $cfg
 423         enabled_any  $dep_any || disable $cfg
 424         disabled_any $dep_sel && disable $cfg
 425
 426         if enabled $cfg; then
 427             eval dep_extralibs="\$${cfg}_extralibs"
 428             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 429             enable_deep $dep_sel
 430             enable_deep_weak $dep_sgs
 431         fi
 432
 433         disable ${cfg}_checking
 434     done
 435 }
 436
 437 print_config(){
 438     pfx=$1
 439     header=$2
 440     makefile=$3
 441     shift 3
 442     for cfg; do
 443         ucname="`toupper $cfg`"
 444         if enabled $cfg; then
 445             echo "#define ${pfx}${ucname} 1" >> $header
 446             echo "${pfx}${ucname}=yes" >> $makefile
 447         else
 448             echo "#define ${pfx}${ucname} 0" >> $header
 449         fi
 450     done
 451 }
 452
 453 flags_saved(){
 454     (: ${SAVE_CFLAGS?}) 2> /dev/null
 455 }
 456
 457 save_flags(){
 458     flags_saved && return
 459     SAVE_CFLAGS="$CFLAGS"
 460     SAVE_LDFLAGS="$LDFLAGS"
 461     SAVE_extralibs="$extralibs"
 462 }
 463
 464 restore_flags(){
 465     flags_saved || return
 466     CFLAGS="$SAVE_CFLAGS"
 467     LDFLAGS="$SAVE_LDFLAGS"
 468     extralibs="$SAVE_extralibs"
 469     unset SAVE_CFLAGS
 470     unset SAVE_LDFLAGS
 471     unset SAVE_extralibs
 472 }
 473
 474 temp_cflags(){
 475     save_flags
 476     CFLAGS="$CFLAGS $*"
 477 }
 478
 479 temp_ldflags(){
 480     save_flags
 481     LDFLAGS="$LDFLAGS $*"
 482 }
 483
 484 temp_extralibs(){
 485     save_flags
 486     extralibs="$extralibs $*"
 487 }
 488
 489 append(){
 490     var=$1
 491     shift
 492     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 493     eval "$var=\"\$$var $*\""
 494 }
 495
 496 add_cflags(){
 497     append CFLAGS "$@"
 498 }
 499
 500 add_ldflags(){
 501     append LDFLAGS "$@"
 502 }
 503
 504 add_extralibs(){
 505     append extralibs "$@"
 506 }
 507
 508 check_cmd(){
 509     log "$@"
 510     "$@" >> $logfile 2>&1
 511 }
 512
 513 check_cc(){
 514     log check_cc "$@"
 515     cat > $TMPC
 516     log_file $TMPC
 517     check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 518 }
 519
 520 check_cpp(){
 521     log check_cpp "$@"
 522     cat > $TMPC
 523     log_file $TMPC
 524     check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 525 }
 526
 527 check_asm(){
 528     log check_asm "$@"
 529     name="$1"
 530     asm="$2"
 531     shift 2
 532     check_cc "$@" <<EOF && enable $name || disable $name
 533 void foo(void){ __asm__ volatile($asm); }
 534 EOF
 535 }
 536
 537 check_yasm(){
 538     log check_yasm "$@"
 539     echo "$1" > $TMPS
 540     log_file $TMPS
 541     shift 1
 542     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 543 }
 544
 545 check_ld(){
 546     log check_ld "$@"
 547     check_cc || return
 548     flags=''
 549     libs=''
 550     for f; do
 551         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 552     done
 553     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 554 }
 555
 556 check_cflags(){
 557     log check_cflags "$@"
 558     check_cc "$@" <<EOF && add_cflags "$@"
 559 int x;
 560 EOF
 561 }
 562
 563 check_ldflags(){
 564     log check_ldflags "$@"
 565     check_ld "$@" <<EOF && add_ldflags "$@"
 566 int main(void){ return 0; }
 567 EOF
 568 }
 569
 570 check_header(){
 571     log check_header "$@"
 572     header=$1
 573     shift
 574     disable_safe $header
 575     check_cpp "$@" <<EOF && enable_safe $header
 576 #include <$header>
 577 int x;
 578 EOF
 579 }
 580
 581 check_func(){
 582     log check_func "$@"
 583     func=$1
 584     shift
 585     disable $func
 586     check_ld "$@" <<EOF && enable $func
 587 extern int $func();
 588 int main(void){ $func(); }
 589 EOF
 590 }
 591
 592 check_func_headers(){
 593     log check_func_headers "$@"
 594     headers=$1
 595     func=$2
 596     shift 2
 597     disable $func
 598     incs=""
 599     for hdr in $headers; do
 600         incs="$incs
 601 #include <$hdr>"
 602     done
 603     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 604 $incs
 605 int main(int argc, char **argv){
 606     (void) $func;
 607     return 0;
 608 }
 609 EOF
 610 }
 611
 612 check_cpp_condition(){
 613     log check_cpp_condition "$@"
 614     header=$1
 615     condition=$2
 616     check_cpp <<EOF
 617 #include <$header>
 618 #if !($condition)
 619 #error "unsatisfied condition: $condition"
 620 #endif
 621 EOF
 622 }
 623
 624 check_lib(){
 625     log check_lib "$@"
 626     header="$1"
 627     func="$2"
 628     shift 2
 629     temp_extralibs "$@"
 630     check_header $header && check_func $func && add_extralibs "$@"
 631     err=$?
 632     restore_flags
 633     return $err
 634 }
 635
 636 check_lib2(){
 637     log check_lib2 "$@"
 638     headers="$1"
 639     func="$2"
 640     shift 2
 641     temp_extralibs "$@"
 642     check_func_headers "$headers" $func && add_extralibs "$@"
 643     err=$?
 644     restore_flags
 645     return $err
 646 }
 647
 648 check_exec(){
 649     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 650 }
 651
 652 check_exec_crash(){
 653     code=`cat`
 654
 655     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 656     # are safe but may not be available everywhere.  Thus we use
 657     # raise(SIGTERM) instead.  The check is run in a subshell so we
 658     # can redirect the "Terminated" message from the shell.  SIGBUS
 659     # is not defined by standard C so it is used conditionally.
 660
 661     (check_exec "$@") >> $logfile 2>&1 <<EOF
 662 #include <signal.h>
 663 static void sighandler(int sig){
 664     raise(SIGTERM);
 665 }
 666 int main(void){
 667     signal(SIGILL, sighandler);
 668     signal(SIGFPE, sighandler);
 669     signal(SIGSEGV, sighandler);
 670 #ifdef SIGBUS
 671     signal(SIGBUS, sighandler);
 672 #endif
 673     { $code }
 674 }
 675 EOF
 676 }
 677
 678 check_type(){
 679     log check_type "$@"
 680     headers=$1
 681     type=$2
 682     shift 2
 683     disable $type
 684     incs=""
 685     for hdr in $headers; do
 686         incs="$incs
 687 #include <$hdr>"
 688     done
 689     check_cc "$@" <<EOF && enable $type
 690 $incs
 691 $type v;
 692 EOF
 693 }
 694
 695 require(){
 696     name="$1"
 697     header="$2"
 698     func="$3"
 699     shift 3
 700     check_lib $header $func "$@" || die "ERROR: $name not found"
 701 }
 702
 703 require2(){
 704     name="$1"
 705     headers="$2"
 706     func="$3"
 707     shift 3
 708     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 709 }
 710
 711 check_foo_config(){
 712     cfg=$1
 713     pkg=$2
 714     header=$3
 715     func=$4
 716     shift 4
 717     disable $cfg
 718     check_cmd ${pkg}-config --version
 719     err=$?
 720     if test "$err" = 0; then
 721         temp_cflags `${pkg}-config --cflags`
 722         temp_extralibs `${pkg}-config --libs`
 723         check_lib "$@" $header $func && enable $cfg
 724     fi
 725     return $err
 726 }
 727
 728 apply(){
 729     file=$1
 730     shift
 731     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 732 }
 733
 734 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 735 # system-dependent things.
 736
 737 COMPONENT_LIST="
 738     bsfs
 739     decoders
 740     demuxers
 741     encoders
 742     filters
 743     indevs
 744     muxers
 745     outdevs
 746     parsers
 747     protocols
 748 "
 749
 750 CONFIG_LIST="
 751     $COMPONENT_LIST
 752     aandct
 753     avfilter
 754     avfilter_lavf
 755     avisynth
 756     beos_netserver
 757     bzlib
 758     fastdiv
 759     ffmpeg
 760     ffplay
 761     ffserver
 762     fft
 763     golomb
 764     gpl
 765     gprof
 766     gray
 767     hardcoded_tables
 768     ipv6
 769     libamr_nb
 770     libamr_wb
 771     libdc1394
 772     libdirac
 773     libfaac
 774     libfaad
 775     libfaadbin
 776     libgsm
 777     libmp3lame
 778     libnut
 779     libopenjpeg
 780     libschroedinger
 781     libspeex
 782     libtheora
 783     libvorbis
 784     libx264
 785     libxvid
 786     mdct
 787     memalign_hack
 788     mlib
 789     mpegaudio_hp
 790     network
 791     nonfree
 792     postproc
 793     powerpc_perf
 794     rdft
 795     shared
 796     small
 797     static
 798     vdpau
 799     x11grab
 800     zlib
 801 "
 802
 803 THREADS_LIST='
 804     beosthreads
 805     os2threads
 806     pthreads
 807     w32threads
 808 '
 809
 810 ARCH_LIST='
 811     alpha
 812     arm
 813     bfin
 814     ia64
 815     m68k
 816     mips
 817     parisc
 818     ppc
 819     s390
 820     sh4
 821     sparc
 822     sparc64
 823     x86
 824     x86_32
 825     x86_64
 826 '
 827
 828 ARCH_EXT_LIST='
 829     altivec
 830     amd3dnow
 831     amd3dnowext
 832     armv5te
 833     armv6
 834     armv6t2
 835     armvfp
 836     iwmmxt
 837     mmi
 838     mmx
 839     mmx2
 840     neon
 841     ppc4xx
 842     sse
 843     ssse3
 844     vis
 845 '
 846
 847 HAVE_LIST="
 848     $ARCH_EXT_LIST
 849     $THREADS_LIST
 850     alsa_asoundlib_h
 851     altivec_h
 852     arpa_inet_h
 853     bswap
 854     closesocket
 855     cmov
 856     conio_h
 857     dcbzl
 858     dev_bktr_ioctl_bt848_h
 859     dev_bktr_ioctl_meteor_h
 860     dev_ic_bt8xx_h
 861     dev_video_meteor_ioctl_meteor_h
 862     dev_video_bktr_ioctl_bt848_h
 863     dlfcn_h
 864     dlopen
 865     dos_paths
 866     ebp_available
 867     ebx_available
 868     fast_64bit
 869     fast_cmov
 870     fast_unaligned
 871     fork
 872     gethrtime
 873     GetProcessTimes
 874     getrusage
 875     inet_aton
 876     inline_asm
 877     libdc1394_1
 878     libdc1394_2
 879     llrint
 880     lrint
 881     lrintf
 882     machine_ioctl_bt848_h
 883     machine_ioctl_meteor_h
 884     malloc_h
 885     memalign
 886     mkstemp
 887     pld
 888     posix_memalign
 889     ppc64
 890     round
 891     roundf
 892     sdl
 893     sdl_video_size
 894     setmode
 895     socklen_t
 896     soundcard_h
 897     poll_h
 898     sys_mman_h
 899     sys_resource_h
 900     sys_select_h
 901     sys_soundcard_h
 902     sys_videoio_h
 903     ten_operands
 904     termios_h
 905     threads
 906     truncf
 907     winsock2_h
 908     yasm
 909 "
 910
 911 # options emitted with CONFIG_ prefix but not available on command line
 912 CONFIG_EXTRA="
 913 "
 914
 915 CMDLINE_SELECT="
 916     $ARCH_EXT_LIST
 917     $CONFIG_LIST
 918     $THREADS_LIST
 919     cross_compile
 920     debug
 921     extra_warnings
 922     logging
 923     optimizations
 924     stripping
 925     swscale
 926     yasm
 927 "
 928
 929 PATHS_LIST='
 930     bindir
 931     datadir
 932     incdir
 933     libdir
 934     mandir
 935     prefix
 936     shlibdir
 937 '
 938
 939 CMDLINE_SET="
 940     $PATHS_LIST
 941     arch
 942     build_suffix
 943     cc
 944     cpu
 945     cross_prefix
 946     extra_version
 947     host_cc
 948     host_cflags
 949     host_ldflags
 950     host_libs
 951     logfile
 952     nm
 953     source_path
 954     sysinclude
 955     sysroot
 956     target_exec
 957     target_os
 958     target_path
 959 "
 960
 961 # code dependency declarations
 962
 963 # architecture extensions
 964 altivec_deps="ppc"
 965 amd3dnow_deps="mmx"
 966 amd3dnowext_deps="amd3dnow"
 967 armv5te_deps="arm"
 968 armv6_deps="arm"
 969 armv6t2_deps="arm"
 970 armvfp_deps="arm"
 971 iwmmxt_deps="arm"
 972 mmi_deps="mips"
 973 mmx_deps="x86"
 974 mmx2_deps="mmx"
 975 neon_deps="arm"
 976 ppc4xx_deps="ppc"
 977 sse_deps="mmx"
 978 ssse3_deps="sse"
 979 vis_deps="sparc"
 980
 981 # decoders / encoders
 982 aac_decoder_select="fft mdct"
 983 ac3_decoder_deps="gpl"
 984 ac3_decoder_select="fft mdct"
 985 atrac3_decoder_select="fft mdct"
 986 cavs_decoder_select="golomb"
 987 cook_decoder_select="fft mdct"
 988 cscd_decoder_suggest="zlib"
 989 dca_decoder_select="fft mdct"
 990 dnxhd_encoder_select="aandct"
 991 dxa_decoder_select="zlib"
 992 eac3_decoder_deps="gpl"
 993 eac3_decoder_select="fft mdct"
 994 eatgq_decoder_select="aandct"
 995 eatqi_decoder_select="aandct"
 996 ffv1_decoder_select="golomb"
 997 flac_decoder_select="golomb"
 998 flac_encoder_select="golomb"
 999 flashsv_decoder_select="zlib"
1000 flashsv_encoder_select="zlib"
1001 flv_encoder_select="aandct"
1002 h261_encoder_select="aandct"
1003 h263_encoder_select="aandct"
1004 h263p_encoder_select="aandct"
1005 h264_decoder_select="golomb"
1006 h264_vdpau_decoder_deps="vdpau"
1007 imc_decoder_select="fft mdct"
1008 jpegls_decoder_select="golomb"
1009 jpegls_encoder_select="golomb"
1010 ljpeg_encoder_select="aandct"
1011 loco_decoder_select="golomb"
1012 mjpeg_encoder_select="aandct"
1013 mpeg1video_encoder_select="aandct"
1014 mpeg2video_encoder_select="aandct"
1015 mpeg4_encoder_select="aandct"
1016 mpeg_vdpau_decoder_deps="vdpau"
1017 mpeg1_vdpau_decoder_deps="vdpau"
1018 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1019 msmpeg4v1_encoder_select="aandct"
1020 msmpeg4v2_encoder_select="aandct"
1021 msmpeg4v3_encoder_select="aandct"
1022 nellymoser_decoder_select="fft mdct"
1023 nellymoser_encoder_select="fft mdct"
1024 png_decoder_select="zlib"
1025 png_encoder_select="zlib"
1026 qdm2_decoder_select="fft mdct rdft"
1027 rv10_encoder_select="aandct"
1028 rv20_encoder_select="aandct"
1029 rv30_decoder_select="golomb"
1030 rv40_decoder_select="golomb"
1031 shorten_decoder_select="golomb"
1032 sonic_decoder_select="golomb"
1033 sonic_encoder_select="golomb"
1034 sonic_ls_encoder_select="golomb"
1035 svq3_decoder_select="golomb"
1036 svq3_decoder_suggest="zlib"
1037 tiff_decoder_suggest="zlib"
1038 tiff_encoder_suggest="zlib"
1039 tscc_decoder_select="zlib"
1040 vc1_vdpau_decoder_deps="vdpau"
1041 vorbis_decoder_select="fft mdct"
1042 vorbis_encoder_select="fft mdct"
1043 wmav1_decoder_select="fft mdct"
1044 wmav1_encoder_select="fft mdct"
1045 wmav2_decoder_select="fft mdct"
1046 wmav2_encoder_select="fft mdct"
1047 wmv1_encoder_select="aandct"
1048 wmv2_encoder_select="aandct"
1049 wmv3_vdpau_decoder_deps="vdpau"
1050 zlib_decoder_select="zlib"
1051 zlib_encoder_select="zlib"
1052 zmbv_decoder_select="zlib"
1053 zmbv_encoder_select="zlib"
1054
1055 # external libraries
1056 libamr_nb_decoder_deps="libamr_nb"
1057 libamr_nb_encoder_deps="libamr_nb"
1058 libamr_wb_decoder_deps="libamr_wb"
1059 libamr_wb_encoder_deps="libamr_wb"
1060 libdirac_decoder_deps="libdirac !libschroedinger"
1061 libdirac_encoder_deps="libdirac"
1062 libfaac_encoder_deps="libfaac"
1063 libfaad_decoder_deps="libfaad"
1064 libfaadbin_decoder_extralibs='$ldl'
1065 libgsm_decoder_deps="libgsm"
1066 libgsm_encoder_deps="libgsm"
1067 libgsm_ms_decoder_deps="libgsm"
1068 libgsm_ms_encoder_deps="libgsm"
1069 libmp3lame_encoder_deps="libmp3lame"
1070 libopenjpeg_decoder_deps="libopenjpeg"
1071 libschroedinger_decoder_deps="libschroedinger"
1072 libschroedinger_encoder_deps="libschroedinger"
1073 libspeex_decoder_deps="libspeex"
1074 libtheora_encoder_deps="libtheora"
1075 libvorbis_encoder_deps="libvorbis"
1076 libx264_encoder_deps="libx264"
1077 libxvid_encoder_deps="libxvid"
1078 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1079
1080 # demuxers / muxers
1081 ac3_demuxer_deps="ac3_parser"
1082 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1083 alsa_demuxer_extralibs="-lasound"
1084 alsa_muxer_deps="alsa_asoundlib_h"
1085 alsa_muxer_extralibs="-lasound"
1086 audio_beos_demuxer_deps="audio_beos"
1087 audio_beos_demuxer_extralibs="-lmedia -lbe"
1088 audio_beos_muxer_deps="audio_beos"
1089 audio_beos_muxer_extralibs="-lmedia -lbe"
1090 avisynth_demuxer_deps="avisynth"
1091 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1092 dirac_demuxer_deps="dirac_parser"
1093 dv1394_demuxer_deps="dv1394 dv_demuxer"
1094 libdc1394_demuxer_deps="libdc1394"
1095 libnut_demuxer_deps="libnut"
1096 libnut_muxer_deps="libnut"
1097 matroska_demuxer_suggest="zlib bzlib"
1098 mov_demuxer_suggest="zlib"
1099 mp3_demuxer_deps="mpegaudio_parser"
1100 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1101 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1102 redir_demuxer_deps="network"
1103 rtp_muxer_deps="network rtp_protocol"
1104 rtsp_demuxer_deps="sdp_demuxer"
1105 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1106 v4l_demuxer_deps="linux_videodev_h"
1107 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1108 vfwcap_demuxer_deps="capCreateCaptureWindow"
1109 vfwcap_demuxer_extralibs="-lvfw32"
1110 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1111 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1112
1113 # protocols
1114 gopher_protocol_deps="network"
1115 http_protocol_deps="network"
1116 rtp_protocol_deps="udp_protocol"
1117 tcp_protocol_deps="network"
1118 udp_protocol_deps="network"
1119
1120 # filters
1121 movie_filter_deps="avfilter_lavf"
1122
1123 # programs
1124 ffplay_deps="sdl"
1125 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1126 ffserver_extralibs='$ldl'
1127
1128
1129 # default parameters
1130
1131 logfile="config.err"
1132
1133 # installation paths
1134 prefix_default="/usr/local"
1135 bindir_default='${prefix}/bin'
1136 datadir_default='${prefix}/share/ffmpeg'
1137 incdir_default='${prefix}/include'
1138 libdir_default='${prefix}/lib'
1139 mandir_default='${prefix}/share/man'
1140 shlibdir_default="$libdir_default"
1141
1142 # toolchain
1143 ar="ar"
1144 cc_default="gcc"
1145 host_cc_default="gcc"
1146 ln_s="ln -sf"
1147 nm_default="nm"
1148 objformat="elf"
1149 ranlib="ranlib"
1150 strip="strip"
1151 yasmexe="yasm"
1152
1153 # machine
1154 arch=`uname -m`
1155 cpu="generic"
1156
1157 # OS
1158 target_os=$(tolower $(uname -s))
1159
1160 # configurable options
1161 enable debug
1162 enable ffmpeg
1163 enable ffplay
1164 enable ffserver
1165 enable ipv6
1166 enable mpegaudio_hp
1167 enable network
1168 enable optimizations
1169 enable protocols
1170 enable static
1171 enable stripping
1172
1173 # build settings
1174 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1175 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1176 FFSERVERLDFLAGS=-Wl,-E
1177 LIBPREF="lib"
1178 LIBSUF=".a"
1179 FULLNAME='$(NAME)$(BUILDSUF)'
1180 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1181 SLIBPREF="lib"
1182 SLIBSUF=".so"
1183 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1184 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1185 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1186 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1187
1188 host_cflags='-O3 -g -Wall'
1189 host_libs='-lm'
1190
1191 target_path='.'
1192
1193 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1194 # full relative path for objects in subdirectories for non-recursive Make.
1195 DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1196
1197 # find source path
1198 source_path="`dirname \"$0\"`"
1199 enable source_path_used
1200 if test -z "$source_path" -o "$source_path" = "." ; then
1201     source_path="`pwd`"
1202     disable source_path_used
1203 else
1204     source_path="`cd \"$source_path\"; pwd`"
1205     echo "$source_path" | grep -q '[[:blank:]]' &&
1206         die "Out of tree builds are impossible with whitespace in source path."
1207 fi
1208
1209 FFMPEG_CONFIGURATION="$@"
1210
1211 find_things(){
1212     thing=$1
1213     pattern=$2
1214     file=$source_path/$3
1215     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1216 }
1217
1218 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1219 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1220 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1221 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1222 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1223 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1224 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1225 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1226 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1227 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1228
1229 enable $ARCH_EXT_LIST \
1230        $DECODER_LIST \
1231        $ENCODER_LIST \
1232        $PARSER_LIST \
1233        $BSF_LIST \
1234        $DEMUXER_LIST \
1235        $MUXER_LIST \
1236        $FILTER_LIST \
1237        $PROTOCOL_LIST \
1238        $INDEV_LIST \
1239        $OUTDEV_LIST \
1240
1241 die_unknown(){
1242     echo "Unknown option \"$1\"."
1243     echo "See $0 --help for available options."
1244     exit 1
1245 }
1246
1247 show_list() {
1248     suffix=_$1
1249     shift
1250     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1251     exit 0
1252 }
1253
1254 for opt do
1255     optval="${opt#*=}"
1256     case "$opt" in
1257     --extra-cflags=*) add_cflags $optval
1258     ;;
1259     --extra-ldflags=*) add_ldflags $optval
1260     ;;
1261     --extra-libs=*) add_extralibs $optval
1262     ;;
1263     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1264     ;;
1265     --enable-debug=*) debuglevel="$optval"
1266     ;;
1267     --enable-*=*|--disable-*=*)
1268     eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
1269     case "$thing" in
1270         encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1271         *) die_unknown "$opt" ;;
1272     esac
1273     ;;
1274     --enable-?*|--disable-?*)
1275     eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
1276     if is_in $option $COMPONENT_LIST; then
1277         eval $action \$$(toupper ${option%s})_LIST
1278     elif is_in $option $CMDLINE_SELECT; then
1279         $action $option
1280     else
1281         die_unknown $opt
1282     fi
1283     ;;
1284     --list-*)
1285         NAME="${opt#--list-}"
1286         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1287         NAME=${NAME%s}
1288         eval show_list $NAME \$$(toupper $NAME)_LIST
1289     ;;
1290     --help|-h) show_help
1291     ;;
1292     *)
1293     optname="${opt%%=*}"
1294     optname="${optname#--}"
1295     optname=$(echo "$optname" | sed 's/-/_/g')
1296     is_in $optname $CMDLINE_SET || die_unknown $opt
1297     eval $optname='$optval'
1298     ;;
1299     esac
1300 done
1301
1302 disabled logging && logfile=/dev/null
1303
1304 echo "# $0 $@" > $logfile
1305 set >> $logfile
1306
1307 test -n "$cross_prefix" && enable cross_compile
1308
1309 ar="${cross_prefix}${ar}"
1310 cc_default="${cross_prefix}${cc_default}"
1311 nm_default="${cross_prefix}${nm_default}"
1312 ranlib="${cross_prefix}${ranlib}"
1313 strip="${cross_prefix}${strip}"
1314
1315 sysinclude_default="${sysroot}/usr/include"
1316
1317 set_default cc nm sysinclude
1318 enabled cross_compile || host_cc_default=$cc
1319 set_default host_cc
1320
1321 case $target_os in
1322     mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) EXESUF=.exe ;;
1323 esac
1324
1325 # set temporary file name
1326 : ${TMPDIR:=$TEMPDIR}
1327 : ${TMPDIR:=$TMP}
1328 : ${TMPDIR:=/tmp}
1329
1330 if ! check_cmd type mktemp; then
1331     # simple replacement for missing mktemp
1332     # NOT SAFE FOR GENERAL USE
1333     mktemp(){
1334         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1335     }
1336 fi
1337
1338 tmpfile(){
1339     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1340         (set -C; exec > $tmp) 2>/dev/null ||
1341         die "Unable to create temoporary file in $TMPDIR."
1342     append TMPFILES $tmp
1343     eval $1=$tmp
1344 }
1345
1346 trap 'rm -f -- $TMPFILES' EXIT
1347 trap exit HUP INT TERM
1348
1349 tmpfile TMPC  .c
1350 tmpfile TMPE  $EXESUF
1351 tmpfile TMPH  .h
1352 tmpfile TMPO  .o
1353 tmpfile TMPS  .S
1354 tmpfile TMPSH .sh
1355
1356 unset -f mktemp
1357
1358 # make sure we can execute files in $TMPDIR
1359 cat > $TMPSH 2>> $logfile <<EOF
1360 #! /bin/sh
1361 EOF
1362 chmod +x $TMPSH >> $logfile 2>&1
1363 if ! $TMPSH >> $logfile 2>&1; then
1364     cat <<EOF
1365 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1366 variable to another directory and make sure that it is not mounted noexec.
1367 EOF
1368     die "Sanity test failed."
1369 fi
1370
1371 if   $cc --version 2>/dev/null | grep -qi gcc; then
1372     cc_type=gcc
1373 elif $cc --version 2>/dev/null | grep -q Intel; then
1374     cc_type=icc
1375 elif $cc -v 2>&1 | grep -q xlc; then
1376     cc_type=xlc
1377 elif $cc -V 2>/dev/null | grep -q Compaq; then
1378     cc_type=ccc
1379     DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1380     add_ldflags -Wl,-z,now # calls to libots crash without this
1381 fi
1382
1383 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1384
1385 if test -n "$sysroot"; then
1386     case "$cc_type" in
1387         gcc)
1388             add_cflags  --sysroot="$sysroot"
1389             add_ldflags --sysroot="$sysroot"
1390         ;;
1391     esac
1392 fi
1393
1394 # compiler sanity check
1395 check_exec <<EOF
1396 int main(void){ return 0; }
1397 EOF
1398 if test "$?" != 0; then
1399     echo "$cc is unable to create an executable file."
1400     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1401         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1402         echo "Only do this if you know what cross compiling means."
1403     fi
1404     die "C compiler test failed."
1405 fi
1406
1407 check_cflags -std=c99
1408 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1409 #include <stdlib.h>
1410 EOF
1411 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1412 #include <stdlib.h>
1413 EOF
1414
1415 case "$arch" in
1416     alpha)
1417         arch="alpha"
1418         enable fast_64bit
1419         check_cflags -mieee
1420     ;;
1421     arm|armv[4567]*l)
1422         arch="arm"
1423     ;;
1424     avr32)
1425     ;;
1426     bfin)
1427         arch="bfin"
1428     ;;
1429     ia64)
1430         arch="ia64"
1431         enable fast_64bit
1432     ;;
1433     m68k)
1434         arch="m68k"
1435     ;;
1436     mips|mipsel|IP*)
1437         arch="mips"
1438     ;;
1439     mips64)
1440         arch="mips"
1441         enable fast_64bit
1442     ;;
1443     parisc|hppa)
1444         arch="parisc"
1445     ;;
1446     parisc64|hppa64)
1447         arch="parisc"
1448         enable fast_64bit
1449     ;;
1450     "Power Macintosh"|ppc|powerpc)
1451         arch="ppc"
1452         enable fast_unaligned
1453     ;;
1454     ppc64)
1455         arch="ppc"
1456         enable fast_64bit
1457         enable fast_unaligned
1458     ;;
1459     s390|s390x)
1460         arch="s390"
1461     ;;
1462     sh4|sh)
1463         arch="sh4"
1464     ;;
1465     sparc)
1466         arch="sparc"
1467     ;;
1468     sun4u|sparc64)
1469         arch="sparc"
1470         subarch="sparc64"
1471         enable fast_64bit
1472     ;;
1473     i386|i486|i586|i686|i86pc|BePC)
1474         arch="x86"
1475         subarch="x86_32"
1476         enable fast_unaligned
1477     ;;
1478     x86_64|amd64)
1479         arch="x86"
1480         subarch="x86_32"
1481         enable cmov
1482         enable fast_cmov
1483         enable fast_unaligned
1484         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1485         int test[sizeof(char*) - 7];
1486 EOF
1487     ;;
1488     *)
1489         arch="unknown"
1490     ;;
1491 esac
1492
1493 enable $arch $subarch
1494
1495 # OS specific
1496 case $target_os in
1497     beos|haiku|zeta)
1498         prefix_default="$HOME/config"
1499         # helps building libavcodec
1500         add_cflags -DPIC -fomit-frame-pointer
1501         # 3 gcc releases known for BeOS, each with ugly bugs
1502         gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
1503         case "$gcc_version" in
1504           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1505             disable mmx
1506             ;;
1507           *20010315*) echo "BeBits gcc"
1508             add_cflags -fno-expensive-optimizations
1509             ;;
1510         esac
1511         SHFLAGS=-nostart
1512         # enable BeOS things
1513         enable audio_beos
1514         # no need for libm, but the inet stuff
1515         # Check for BONE
1516         # XXX: actually should check for NOT net_server
1517         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1518             network_extralibs="-lbind -lsocket"
1519         else
1520             enable beos_netserver
1521             network_extralibs="-lnet"
1522         fi ;;
1523     sunos)
1524         FFSERVERLDFLAGS=""
1525         SHFLAGS='-shared -Wl,-h,$$(@F)'
1526         network_extralibs="-lsocket -lnsl"
1527         add_cflags -D__EXTENSIONS__
1528         ;;
1529     netbsd)
1530         oss_demuxer_extralibs="-lossaudio"
1531         oss_muxer_extralibs="-lossaudio"
1532         ;;
1533     openbsd)
1534         disable need_memalign
1535         LIBOBJFLAGS='$(PIC)'
1536         SHFLAGS='-shared'
1537         oss_demuxer_extralibs="-lossaudio"
1538         oss_muxer_extralibs="-lossaudio"
1539         ;;
1540     freebsd)
1541         disable need_memalign
1542         ;;
1543     bsd/os)
1544         osextralibs="-lpoll -lgnugetopt"
1545         strip="strip -d"
1546         ;;
1547     darwin)
1548         disable need_memalign
1549         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1550         strip="strip -x"
1551         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1552         SLIBSUF=".dylib"
1553         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1554         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1555         FFSERVERLDFLAGS=-Wl,-bind_at_load
1556         objformat="macho"
1557         enabled x86_64 && objformat="macho64"
1558         ;;
1559     mingw32*)
1560         target_os=mingw32
1561         LIBTARGET=i386
1562         if enabled x86_64; then
1563             disable need_memalign
1564             LIBTARGET=x64
1565         fi
1566         shlibdir_default="$bindir_default"
1567         disable ffserver
1568         SLIBPREF=""
1569         SLIBSUF=".dll"
1570         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1571         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1572         SLIB_EXTRA_CMD='-lib /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1573         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1574             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1575         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1576         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1577         objformat="win32"
1578         enable dos_paths
1579         if ! enabled x86_64; then
1580             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1581                 die "ERROR: MinGW runtime version must be >= 3.15."
1582             enabled_any avisynth vfwcap_demuxer &&
1583                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1584                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1585             fi
1586         ;;
1587     cygwin*)
1588         target_os=cygwin
1589         shlibdir_default="$bindir_default"
1590         SLIBPREF="cyg"
1591         SLIBSUF=".dll"
1592         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1593         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1594         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1595         objformat="win32"
1596         enable dos_paths
1597         ;;
1598     *-dos|freedos|opendos)
1599         disable ffplay ffserver
1600         disable $INDEV_LIST $OUTDEV_LIST
1601         network_extralibs="-lsocket"
1602         objformat="coff"
1603         enable dos_paths
1604         ;;
1605     linux)
1606         enable dv1394
1607         ;;
1608     irix*)
1609         target_os=irix
1610         ranlib="echo ignoring ranlib"
1611         ;;
1612     os/2*)
1613         strip="lxlite"
1614         ln_s="cp -f"
1615         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1616         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1617         FFSERVERLDFLAGS=""
1618         LIBSUF="_s.a"
1619         SLIBPREF=""
1620         SLIBSUF=".dll"
1621         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1622         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1623         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1624           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1625           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1626           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1627           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1628           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1629         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1630           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1631         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1632         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1633         enable dos_paths
1634         ;;
1635
1636     *)
1637         die "Unknown OS '$target_os'."
1638         ;;
1639 esac
1640
1641 set_default $PATHS_LIST
1642
1643 add_extralibs $osextralibs
1644
1645 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1646 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1647
1648 # we need to build at least one lib type
1649 if ! enabled_any static shared; then
1650     cat <<EOF
1651 At least one library type must be built.
1652 Specify --enable-static to build the static libraries or --enable-shared to
1653 build the shared libraries as well. To only build the shared libraries specify
1654 --disable-static in addition to --enable-shared.
1655 EOF
1656     exit 1;
1657 fi
1658
1659 disabled static && LIBNAME=""
1660
1661 if enabled_any libfaad libfaadbin ; then
1662     if check_header faad.h; then
1663         check_cc <<EOF
1664 #include <faad.h>
1665 #ifndef FAAD2_VERSION
1666 ok faad1
1667 #endif
1668 int main(void) { return 0; }
1669 EOF
1670         test $? = 0 && enable libfaad2
1671     else
1672         die "FAAD test failed."
1673     fi
1674 fi
1675
1676
1677 if ! enabled gpl; then
1678     die_gpl_disabled(){
1679         name=$1
1680         shift
1681         enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1682     }
1683     die_gpl_disabled "The Postprocessing code" postproc
1684     die_gpl_disabled "libx264"                 libx264
1685     die_gpl_disabled "libxvidcore"             libxvid
1686     die_gpl_disabled "FAAD2"                   libfaad2
1687     die_gpl_disabled "The X11 grabber"         x11grab
1688 fi
1689
1690 if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1691     die "libamr is nonfree and --enable-nonfree is not specified."
1692 fi
1693
1694 check_deps $ARCH_EXT_LIST
1695
1696 test -z "$need_memalign" && need_memalign="$mmx"
1697
1698 #Darwin CC versions
1699 if test $target_os = darwin; then
1700     if enabled xlc; then
1701         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1702     else
1703         add_cflags -pipe
1704         check_cflags -force_cpusubtype_ALL
1705         check_cflags -Wno-sign-compare
1706         enabled shared || check_cflags -mdynamic-no-pic
1707     fi
1708 fi
1709
1710 disabled optimizations || check_cflags -fomit-frame-pointer
1711
1712 # Add processor-specific flags
1713 if test $cpu != "generic"; then
1714     warn_altivec(){
1715         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1716     }
1717     case $cpu in
1718         601|ppc601|PowerPC601)
1719             add_cflags -mcpu=601
1720             warn_altivec enabled PPC601
1721         ;;
1722         603*|ppc603*|PowerPC603*)
1723             add_cflags -mcpu=603
1724             warn_altivec enabled PPC603
1725         ;;
1726         604*|ppc604*|PowerPC604*)
1727             add_cflags -mcpu=604
1728             warn_altivec enabled PPC604
1729         ;;
1730         G3|g3|75*|ppc75*|PowerPC75*)
1731             add_cflags -mcpu=750 -mpowerpc-gfxopt
1732             warn_altivec enabled PPC75x
1733         ;;
1734         G4|g4|745*|ppc745*|PowerPC745*)
1735             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1736             warn_altivec disabled PPC745x
1737         ;;
1738         74*|ppc74*|PowerPC74*)
1739             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1740             warn_altivec disabled PPC74xx
1741         ;;
1742         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1743             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1744             warn_altivec disabled PPC970
1745             enable ppc64
1746         ;;
1747         Cell|CELL|cell)
1748             add_cflags -mcpu=cell
1749             warn_altivec disabled Cell
1750             enable ppc64
1751         ;;
1752         # targets that do NOT support conditional mov (cmov)
1753         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1754             add_cflags -march=$cpu
1755             disable cmov
1756         ;;
1757         # targets that do support conditional mov (cmov)
1758         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1759             add_cflags -march=$cpu
1760             enable cmov
1761             enable fast_cmov
1762         ;;
1763         # targets that do support conditional mov but on which it's slow
1764         pentium4|pentium4m|prescott|nocona)
1765             add_cflags -march=$cpu
1766             enable cmov
1767             disable fast_cmov
1768         ;;
1769         sparc64)
1770             add_cflags -mcpu=v9
1771         ;;
1772         arm11*|cortex*)
1773             add_cflags -mcpu=$cpu
1774             enable fast_unaligned
1775         ;;
1776         armv*)
1777             add_cflags -march=$cpu
1778         ;;
1779         arm*)
1780             add_cflags -mcpu=$cpu
1781         ;;
1782         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1783             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1784         ;;
1785         *)
1786             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1787         ;;
1788     esac
1789 fi
1790
1791 check_cc <<EOF || die "Symbol mangling check failed."
1792 int ff_extern;
1793 EOF
1794 sym=$($nm -P -g $TMPO | grep ff_extern)
1795 extern_prefix=${sym%%ff_extern*}
1796
1797 check_asm inline_asm '""'
1798
1799 if enabled x86; then
1800     # check whether EBP is available on x86
1801     # As 'i' is stored on the stack, this program will crash
1802     # if the base pointer is used to access it because the
1803     # base pointer is cleared in the inline assembly code.
1804     check_exec_crash <<EOF && enable ebp_available
1805     volatile int i=0;
1806     __asm__ volatile (
1807         "xorl %%ebp, %%ebp"
1808     ::: "%ebp");
1809     return i;
1810 EOF
1811
1812     # check wether EBX is available on x86
1813     check_asm ebx_available '"":::"%ebx"'
1814
1815     # check whether more than 10 operands are supported
1816     check_cc <<EOF && enable ten_operands
1817 int main(void) {
1818     int x=0;
1819     __asm__ volatile(
1820         ""
1821         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1822     );
1823     return 0;
1824 }
1825 EOF
1826
1827     # check whether binutils is new enough to compile SSSE3/MMX2
1828     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1829     enabled mmx2  && check_asm mmx2  '"movss %xmm0, %xmm0"'
1830
1831     check_asm bswap '"bswap %%eax" ::: "%eax"'
1832
1833     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1834     enabled     x86_64        && append YASMFLAGS "-m amd64"
1835     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1836     case "$objformat" in
1837         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1838         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1839         *)                    append YASMFLAGS "-DPREFIX"  ;;
1840     esac
1841     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1842 fi
1843
1844 # check for assembler specific support
1845
1846 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1847 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1848
1849 # check for SIMD availability
1850
1851 # AltiVec flags: The FSF version of GCC differs from the Apple version
1852 if enabled altivec; then
1853     check_cflags -maltivec -mabi=altivec &&
1854         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1855         check_cflags -faltivec
1856
1857     # check if our compiler supports Motorola AltiVec C API
1858     check_cc <<EOF || disable altivec
1859 $inc_altivec_h
1860 int main(void) {
1861     vector signed int v1, v2, v3;
1862     v1 = vec_add(v2,v3);
1863     return 0;
1864 }
1865 EOF
1866
1867     # check if our compiler supports braces for vector declarations
1868     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1869 $inc_altivec_h
1870 int main (void) { (vector int) {1}; return 0; }
1871 EOF
1872 fi
1873
1874 # We have to check if pld is a nop and disable it.
1875 enabled arm     && check_asm pld     '"pld [r0]"'
1876 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1877 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1878 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1879 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1880 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1881 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1882 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1883 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1884
1885 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1886
1887 # ---
1888 # big/little-endian test
1889 check_cc <<EOF || die "endian test failed"
1890 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1891 EOF
1892 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1893
1894 # ---
1895 # check availability of some header files
1896
1897 if check_func dlopen; then
1898     ldl=
1899 elif check_func dlopen -ldl; then
1900     ldl=-ldl
1901 fi
1902
1903 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
1904 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
1905
1906 check_func  fork
1907 check_func  gethrtime
1908 check_func  getrusage
1909 check_func  inet_aton $network_extralibs
1910 check_func  memalign
1911 check_func  mkstemp
1912 check_func  posix_memalign
1913 check_func_headers io.h setmode
1914 check_func_headers windows.h GetProcessTimes
1915
1916 check_header conio.h
1917 check_header dlfcn.h
1918 check_header malloc.h
1919 check_header poll.h
1920 check_header sys/mman.h
1921 check_header sys/resource.h
1922 check_header sys/select.h
1923 check_header termios.h
1924 check_header vdpau/vdpau.h
1925 check_header vdpau/vdpau_x11.h
1926 check_header X11/extensions/XvMClib.h
1927
1928 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
1929     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
1930 fi
1931
1932 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
1933 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
1934
1935 # check for some common methods of building with pthread support
1936 # do this before the optional library checks as some of them require pthreads
1937 if enabled pthreads; then
1938     if check_func pthread_create; then
1939         :
1940     elif check_func pthread_create -pthread; then
1941         add_cflags -pthread
1942         add_extralibs -pthread
1943     elif check_func pthread_create -pthreads; then
1944         add_cflags -pthreads
1945         add_extralibs -pthreads
1946     elif check_func pthread_create -lpthreadGC2; then
1947         add_extralibs -lpthreadGC2
1948     elif ! check_lib pthread.h pthread_create -lpthread; then
1949         die "ERROR: can't find pthreads library"
1950     fi
1951 fi
1952
1953 for thread in $THREADS_LIST; do
1954     if enabled $thread; then
1955         test -n "$thread_type" &&
1956             die "ERROR: Only one thread type must be selected." ||
1957             thread_type="$thread"
1958     fi
1959 done
1960
1961 check_lib math.h sin -lm
1962
1963 # test for C99 functions in math.h
1964 for func in llrint lrint lrintf round roundf truncf; do
1965     check_exec <<EOF && enable $func || disable $func
1966 #include <math.h>
1967 int main(void) { return ($func(3.999f) > 0)?0:1; }
1968 EOF
1969 done
1970
1971 # these are off by default, so fail if requested and not available
1972 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
1973 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
1974 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
1975 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
1976                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
1977                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
1978 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
1979 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
1980 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
1981 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
1982 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
1983 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
1984 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
1985                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
1986 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
1987 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
1988 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
1989 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
1990                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
1991                         die "ERROR: libx264 version must be >= 0.65."; }
1992 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
1993 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
1994
1995 # libdc1394 check
1996 if enabled libdc1394; then
1997     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
1998         enable libdc1394_2; } ||
1999     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2000         enable libdc1394_1; } ||
2001     die "ERROR: No version of libdc1394 found "
2002 fi
2003
2004
2005 _restrict=
2006 for restrict_keyword in restrict __restrict__ __restrict; do
2007     check_cc <<EOF && _restrict=$restrict_keyword && break
2008 void foo(char * $restrict_keyword p);
2009 EOF
2010 done
2011
2012 ##########################################
2013 # SDL check
2014
2015 disable sdl_too_old
2016 disable sdl
2017 SDL_CONFIG="${cross_prefix}sdl-config"
2018 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2019     sdl_cflags=`"${SDL_CONFIG}" --cflags`
2020     temp_cflags $sdl_cflags
2021     temp_extralibs `"${SDL_CONFIG}" --libs`
2022     if check_lib2 SDL.h SDL_Init; then
2023         _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
2024         if test "$_sdlversion" -lt 121 ; then
2025             enable sdl_too_old
2026         else
2027             enable sdl
2028             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2029 #include <SDL.h>
2030 int main(int argc, char **argv){
2031     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2032     int w = vi->current_w;
2033     return 0;
2034 }
2035 EOF
2036         fi
2037     fi
2038     restore_flags
2039 fi
2040
2041 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2042
2043 ##########################################
2044 # Network check
2045
2046 if enabled network; then
2047     check_type "sys/types.h sys/socket.h" socklen_t
2048     # Prefer arpa/inet.h over winsock2
2049     if check_header arpa/inet.h ; then
2050         check_func closesocket
2051     elif check_header winsock2.h ; then
2052         network_extralibs="-lws2_32"
2053         check_type ws2tcpip.h socklen_t
2054         check_func_headers winsock2.h closesocket
2055     fi
2056 fi
2057
2058 ##########################################
2059 # IPv6 check
2060
2061 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2062 #include <sys/types.h>
2063 #include <sys/socket.h>
2064 #include <netinet/in.h>
2065 #include <netdb.h>
2066 int main(void) {
2067     struct sockaddr_storage saddr;
2068     struct ipv6_mreq mreq6;
2069     getaddrinfo(0,0,0,0);
2070     getnameinfo(0,0,0,0,0,0,0);
2071     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2072 }
2073 EOF
2074
2075 check_header linux/videodev.h
2076 check_header linux/videodev2.h
2077 check_header sys/videoio.h
2078
2079 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2080
2081 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2082 { check_header dev/bktr/ioctl_meteor.h &&
2083   check_header dev/bktr/ioctl_bt848.h; } ||
2084 { check_header machine/ioctl_meteor.h &&
2085   check_header machine/ioctl_bt848.h; } ||
2086 { check_header dev/video/meteor/ioctl_meteor.h &&
2087   check_header dev/video/bktr/ioctl_bt848.h; } ||
2088 check_header dev/ic/bt8xx.h
2089
2090 check_header sys/soundcard.h
2091 check_header soundcard.h
2092
2093 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2094
2095 # deal with the X11 frame grabber
2096 enabled x11grab                         &&
2097 check_header X11/Xlib.h                 &&
2098 check_header X11/extensions/XShm.h      &&
2099 check_func XOpenDisplay -lX11           &&
2100 check_func XShmCreateImage -lX11 -lXext
2101
2102 enabled debug && add_cflags -g"$debuglevel"
2103
2104 # add some useful compiler flags if supported
2105 check_cflags -Wdeclaration-after-statement
2106 check_cflags -Wall
2107 check_cflags -Wno-switch
2108 check_cflags -Wdisabled-optimization
2109 check_cflags -Wpointer-arith
2110 check_cflags -Wredundant-decls
2111 check_cflags -Wno-pointer-sign
2112 check_cflags -Wcast-qual
2113 check_cflags -Wwrite-strings
2114 check_cflags -Wtype-limits
2115 check_cflags -Wundef
2116 enabled extra_warnings && check_cflags -Winline
2117
2118 # add some linker flags
2119 check_ldflags -Wl,--warn-common
2120 check_ldflags -Wl,--as-needed
2121 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2122 check_ldflags -Wl,-Bsymbolic
2123
2124 if enabled small; then
2125     check_cflags -Os            # not all compilers support -Os
2126     optimizations="small"
2127 elif enabled optimizations; then
2128     if enabled xlc; then
2129         add_cflags  -O5
2130         add_ldflags -O5
2131     elif enabled ccc; then
2132         add_cflags -fast
2133     else
2134         add_cflags -O3
2135     fi
2136 fi
2137 check_cflags -fno-math-errno
2138 check_cflags -fno-signed-zeros
2139
2140 # add some flags for Intel C Compiler
2141 if enabled icc; then
2142     # Just warnings, no remarks
2143     check_cflags -w1
2144     # -wd: Disable following warnings
2145     # 144, 167, 556: -Wno-pointer-sign
2146     # 10006: ignoring unknown option -fno-signed-zeros
2147     # 10156: ignoring option '-W'; no argument required
2148     check_cflags -wd144,167,556,10006,10156
2149     # 11030: Warning unknown option --as-needed
2150     # 10156: ignoring option '-export'; no argument required
2151     check_ldflags -wd10156,11030
2152     # Allow to compile with optimizations
2153     check_ldflags -march=$cpu
2154 elif enabled ccc; then
2155     # disable some annoying warnings
2156     add_cflags -msg_disable cvtu32to64
2157     add_cflags -msg_disable embedcomment
2158     add_cflags -msg_disable needconstext
2159     add_cflags -msg_disable nomainieee
2160     add_cflags -msg_disable ptrmismatch1
2161     add_cflags -msg_disable unreachcode
2162 fi
2163
2164 # PIC flags for shared library objects where they are needed
2165 if enabled shared; then
2166     # LIBOBJFLAGS may have already been set in the OS configuration
2167     if test -z "$LIBOBJFLAGS" ; then
2168         case "${subarch-$arch}" in
2169             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2170         esac
2171     fi
2172 fi
2173
2174 if enabled gprof; then
2175     add_cflags  -p
2176     add_ldflags -p
2177 fi
2178
2179 # Find out if the .align argument is a power of two or not.
2180 check_asm asmalign_pot '".align 3"'
2181
2182 enabled_any $DECODER_LIST      && enable decoders
2183 enabled_any $ENCODER_LIST      && enable encoders
2184 enabled_any $BSF_LIST          && enable bsfs
2185 enabled_any $DEMUXER_LIST      && enable demuxers
2186 enabled_any $MUXER_LIST        && enable muxers
2187 enabled_any $FILTER_LIST       && enable filters
2188 enabled_any $INDEV_LIST        && enable demuxers
2189 enabled_any $OUTDEV_LIST       && enable muxers
2190 enabled_any $PROTOCOL_LIST     && enable protocols
2191
2192 enabled_any $THREADS_LIST      && enable threads
2193
2194 check_deps $CONFIG_LIST       \
2195            $CONFIG_EXTRA      \
2196            $HAVE_LIST         \
2197            $DECODER_LIST      \
2198            $ENCODER_LIST      \
2199            $PARSER_LIST       \
2200            $BSF_LIST          \
2201            $DEMUXER_LIST      \
2202            $MUXER_LIST        \
2203            $FILTER_LIST       \
2204            $INDEV_LIST        \
2205            $OUTDEV_LIST       \
2206            $PROTOCOL_LIST     \
2207
2208 echo "install prefix            $prefix"
2209 echo "source path               $source_path"
2210 echo "C compiler                $cc"
2211 echo ".align is power-of-two    $asmalign_pot"
2212 echo "ARCH                      $arch ($cpu)"
2213 if test "$build_suffix" != ""; then
2214     echo "build suffix              $build_suffix"
2215 fi
2216 if test "$extra_version" != ""; then
2217     echo "version string suffix     $extra_version"
2218 fi
2219 echo "big-endian                ${bigendian-no}"
2220 if enabled x86; then
2221     echo "yasm                      ${yasm-no}"
2222     echo "MMX enabled               ${mmx-no}"
2223     echo "MMX2 enabled              ${mmx2-no}"
2224     echo "3DNow! enabled            ${amd3dnow-no}"
2225     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2226     echo "SSE enabled               ${sse-no}"
2227     echo "SSSE3 enabled             ${ssse3-no}"
2228     echo "CMOV enabled              ${cmov-no}"
2229     echo "CMOV is fast              ${fast_cmov-no}"
2230     echo "EBX available             ${ebx_available-no}"
2231     echo "EBP available             ${ebp_available-no}"
2232     echo "10 operands supported     ${ten_operands-no}"
2233 fi
2234 if enabled arm; then
2235     echo "ARMv5TE enabled           ${armv5te-no}"
2236     echo "ARMv6 enabled             ${armv6-no}"
2237     echo "ARMv6T2 enabled           ${armv6t2-no}"
2238     echo "ARM VFP enabled           ${armvfp-no}"
2239     echo "IWMMXT enabled            ${iwmmxt-no}"
2240     echo "NEON enabled              ${neon-no}"
2241 fi
2242 if enabled mips; then
2243     echo "MMI enabled               ${mmi-no}"
2244 fi
2245 if enabled ppc; then
2246     echo "AltiVec enabled           ${altivec-no}"
2247     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2248     echo "dcbzl available           ${dcbzl-no}"
2249     echo "performance report        ${powerpc_perf-no}"
2250 fi
2251 if enabled sparc; then
2252     echo "VIS enabled               ${vis-no}"
2253 fi
2254 echo "gprof enabled             ${gprof-no}"
2255 echo "debug symbols             ${debug-no}"
2256 echo "strip symbols             ${stripping-no}"
2257 echo "optimizations             ${optimizations-no}"
2258 echo "static                    ${static-no}"
2259 echo "shared                    ${shared-no}"
2260 echo "postprocessing support    ${postproc-no}"
2261 echo "new filter support        ${avfilter-no}"
2262 echo "filters using lavformat   ${avfilter_lavf-no}"
2263 echo "network support           ${network-no}"
2264 if enabled network; then
2265     echo "IPv6 support              ${ipv6-no}"
2266 fi
2267 echo "threading support         ${thread_type-no}"
2268 echo "SDL support               ${sdl-no}"
2269 if enabled sdl_too_old; then
2270     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2271 fi
2272 echo "Sun medialib support      ${mlib-no}"
2273 echo "AVISynth enabled          ${avisynth-no}"
2274 echo "libamr-nb support         ${libamr_nb-no}"
2275 echo "libamr-wb support         ${libamr_wb-no}"
2276 echo "libdc1394 support         ${libdc1394-no}"
2277 echo "libdirac enabled          ${libdirac-no}"
2278 echo "libfaac enabled           ${libfaac-no}"
2279 echo "libfaad enabled           ${libfaad-no}"
2280 echo "libfaad dlopened          ${libfaadbin-no}"
2281 echo "libgsm enabled            ${libgsm-no}"
2282 echo "libmp3lame enabled        ${libmp3lame-no}"
2283 echo "libnut enabled            ${libnut-no}"
2284 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2285 echo "libschroedinger enabled   ${libschroedinger-no}"
2286 echo "libspeex enabled          ${libspeex-no}"
2287 echo "libtheora enabled         ${libtheora-no}"
2288 echo "libvorbis enabled         ${libvorbis-no}"
2289 echo "libx264 enabled           ${libx264-no}"
2290 echo "libxvid enabled           ${libxvid-no}"
2291 echo "vdpau enabled             ${vdpau-no}"
2292 echo "zlib enabled              ${zlib-no}"
2293 echo "bzlib enabled             ${bzlib-no}"
2294 echo
2295
2296 for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
2297     echo "Enabled ${type}s:"
2298     eval list=\$$(toupper $type)_LIST
2299     for part in $list; do
2300         enabled $part && echo ${part%_*}
2301     done | sort | pr -3 -t
2302     echo
2303 done
2304
2305 license="LGPL"
2306 if enabled nonfree; then
2307     license="unredistributable"
2308 elif enabled gpl; then
2309     license="GPL"
2310 fi
2311
2312 echo "License: $license"
2313
2314 echo "Creating config.mak and config.h..."
2315
2316 echo "# Automatically generated by configure - do not modify!" > config.mak
2317 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2318 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2319 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2320 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2321 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2322
2323 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2324 echo "prefix=$prefix" >> config.mak
2325 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2326 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2327 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2328 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2329 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2330 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2331 echo "CC=$cc" >> config.mak
2332 echo "YASM=$yasmexe" >> config.mak
2333 echo "AR=$ar" >> config.mak
2334 echo "RANLIB=$ranlib" >> config.mak
2335 echo "LN_S=$ln_s" >> config.mak
2336 enabled stripping &&
2337     echo "STRIP=$strip" >> config.mak ||
2338     echo "STRIP=echo ignoring strip" >> config.mak
2339
2340 echo "OPTFLAGS=$CFLAGS" >> config.mak
2341 echo "LDFLAGS=$LDFLAGS" >> config.mak
2342 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2343 echo "SHFLAGS=$SHFLAGS" >> config.mak
2344 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2345 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2346 echo "BUILD_STATIC=$static" >> config.mak
2347 echo "BUILDSUF=$build_suffix" >> config.mak
2348 echo "FULLNAME=$FULLNAME" >> config.mak
2349 echo "LIBPREF=$LIBPREF" >> config.mak
2350 echo "LIBSUF=$LIBSUF" >> config.mak
2351 echo "LIBNAME=$LIBNAME" >> config.mak
2352 echo "SLIBPREF=$SLIBPREF" >> config.mak
2353 echo "SLIBSUF=$SLIBSUF" >> config.mak
2354 echo "EXESUF=$EXESUF" >> config.mak
2355 echo "EXTRA_VERSION=$extra_version" >> config.mak
2356 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2357 echo "HOSTCC=$host_cc" >> config.mak
2358 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2359 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2360 echo "HOSTLIBS=$host_libs" >> config.mak
2361 echo "TARGET_EXEC=$target_exec" >> config.mak
2362 echo "TARGET_PATH=$target_path" >> config.mak
2363
2364 if enabled bigendian; then
2365     echo "WORDS_BIGENDIAN=yes" >> config.mak
2366     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2367 fi
2368
2369 if enabled sdl; then
2370     echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
2371     echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> config.mak
2372 fi
2373 if enabled texi2html; then
2374     echo "BUILD_DOC=yes" >> config.mak
2375 fi
2376
2377 get_version(){
2378     name=$1
2379     file=$source_path/$2
2380     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2381     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2382     lcname=$(tolower $name)
2383     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2384     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2385 }
2386
2387 get_version LIBSWSCALE  libswscale/swscale.h
2388 get_version LIBPOSTPROC libpostproc/postprocess.h
2389 get_version LIBAVCODEC  libavcodec/avcodec.h
2390 get_version LIBAVDEVICE libavdevice/avdevice.h
2391 get_version LIBAVFORMAT libavformat/avformat.h
2392 get_version LIBAVUTIL   libavutil/avutil.h
2393 get_version LIBAVFILTER libavfilter/avfilter.h
2394
2395 if enabled shared; then
2396     echo "BUILD_SHARED=yes" >> config.mak
2397     echo "PIC=-fPIC -DPIC" >> config.mak
2398     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2399     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2400     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2401     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2402     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2403     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2404     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2405     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2406 fi
2407 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2408 echo "EXTRALIBS=$extralibs" >> config.mak
2409
2410 echo "ARCH=$arch" >> config.mak
2411
2412 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2413 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2414 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2415                                       $CONFIG_EXTRA      \
2416                                       $DECODER_LIST      \
2417                                       $ENCODER_LIST      \
2418                                       $PARSER_LIST       \
2419                                       $BSF_LIST          \
2420                                       $DEMUXER_LIST      \
2421                                       $MUXER_LIST        \
2422                                       $FILTER_LIST       \
2423                                       $PROTOCOL_LIST     \
2424                                       $INDEV_LIST        \
2425                                       $OUTDEV_LIST       \
2426
2427 echo "#define restrict $_restrict" >> $TMPH
2428
2429 if enabled small; then
2430     echo "#define av_always_inline"  >> $TMPH
2431 fi
2432
2433 echo "SRC_PATH=\"$source_path\"" >> config.mak
2434 echo "SRC_PATH_BARE=$source_path" >> config.mak
2435 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2436
2437 # Apparently it's not possible to portably echo a backslash.
2438 enabled asmalign_pot &&
2439     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2440     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2441
2442 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2443
2444 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2445
2446 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2447 cmp -s $TMPH config.h &&
2448     echo "config.h is unchanged" ||
2449     mv -f $TMPH config.h
2450
2451 # build tree in object directory if source path is different from current one
2452 if enabled source_path_used; then
2453     DIRS="\
2454         doc               \
2455         libavcodec        \
2456         libavcodec/alpha  \
2457         libavcodec/arm    \
2458         libavcodec/bfin   \
2459         libavcodec/mlib   \
2460         libavcodec/ppc    \
2461         libavcodec/sh4    \
2462         libavcodec/sparc  \
2463         libavcodec/x86    \
2464         libavdevice       \
2465         libavfilter       \
2466         libavformat       \
2467         libavutil         \
2468         libpostproc       \
2469         libswscale        \
2470         tests             \
2471         tools             \
2472         "
2473     FILES="\
2474         Makefile             \
2475         common.mak           \
2476         subdir.mak           \
2477         doc/texi2pod.pl      \
2478         libavcodec/Makefile  \
2479         libavdevice/Makefile \
2480         libavfilter/Makefile \
2481         libavformat/Makefile \
2482         libavutil/Makefile   \
2483         libpostproc/Makefile \
2484         libswscale/Makefile  \
2485         "
2486     for dir in $DIRS ; do
2487         mkdir -p $dir
2488     done
2489     for f in $FILES ; do
2490         $ln_s "$source_path/$f" $f
2491     done
2492 fi
2493
2494
2495 # build pkg-config files
2496
2497 pkgconfig_generate(){
2498 name=$1
2499 shortname=${name#lib}${build_suffix}
2500 comment=$2
2501 version=$3
2502 libs=$4
2503 requires=$5
2504 cat <<EOF > $name/$name.pc
2505 prefix=$prefix
2506 exec_prefix=\${prefix}
2507 libdir=$libdir
2508 includedir=$incdir
2509
2510 Name: $name
2511 Description: $comment
2512 Version: $version
2513 Requires: $(disabled shared && echo $requires)
2514 Requires.private: $(enabled shared && echo $requires)
2515 Conflicts:
2516 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2517 Libs.private: $(enabled shared && echo $libs)
2518 Cflags: -I\${includedir}
2519 EOF
2520 cat <<EOF > $name/$name-uninstalled.pc
2521 prefix=
2522 exec_prefix=
2523 libdir=\${pcfiledir}
2524 includedir=${source_path}
2525
2526 Name: $name
2527 Description: $comment
2528 Version: $version
2529 Requires: $requires
2530 Conflicts:
2531 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2532 Cflags: -I\${includedir}
2533 EOF
2534 }
2535
2536 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2537 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2538 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2539 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2540 enabled avfilter &&
2541     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2542 enabled postproc &&
2543     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2544     pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"