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-swscale         enable GPLed software scaler support [no]"
  85   echo "  --enable-avfilter        video filter support (replaces vhook) [no]"
  86   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  87   echo "  --disable-vhook          disable video hooking support"
  88   echo "  --enable-beosthreads     use BeOS threads [no]"
  89   echo "  --enable-os2threads      use OS/2 threads [no]"
  90   echo "  --enable-pthreads        use pthreads [no]"
  91   echo "  --enable-w32threads      use Win32 threads [no]"
  92   echo "  --enable-x11grab         enable X11 grabbing [no]"
  93   echo "  --enable-vdpau           enable VDPAU support [no]"
  94   echo "  --enable-xvmc            enable XvMC support [no]"
  95   echo "  --disable-network        disable network support [no]"
  96   echo "  --disable-ipv6           disable IPv6 support [no]"
  97   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  98   echo "  --enable-gray            enable full grayscale support (slower color)"
  99   echo "  --enable-fastdiv         enable table-based division"
 100   echo "  --enable-small           optimize for size instead of speed"
 101   echo "  --disable-aandct         disable AAN DCT code"
 102   echo "  --disable-fft            disable FFT code"
 103   echo "  --disable-golomb         disable Golomb code"
 104   echo "  --disable-mdct           disable MDCT code"
 105   echo "  --disable-rdft           disable RDFT code"
 106   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 107   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 108   echo "  --enable-beos-netserver  enable BeOS netserver"
 109   echo "  --disable-encoder=NAME   disable encoder NAME"
 110   echo "  --enable-encoder=NAME    enable encoder NAME"
 111   echo "  --disable-encoders       disable all encoders"
 112   echo "  --disable-decoder=NAME   disable decoder NAME"
 113   echo "  --enable-decoder=NAME    enable decoder NAME"
 114   echo "  --disable-decoders       disable all decoders"
 115   echo "  --disable-muxer=NAME     disable muxer NAME"
 116   echo "  --enable-muxer=NAME      enable muxer NAME"
 117   echo "  --disable-muxers         disable all muxers"
 118   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 119   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 120   echo "  --disable-demuxers       disable all demuxers"
 121   echo "  --enable-parser=NAME     enable parser NAME"
 122   echo "  --disable-parser=NAME    disable parser NAME"
 123   echo "  --disable-parsers        disable all parsers"
 124   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 125   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 126   echo "  --disable-bsfs           disable all bitstream filters"
 127   echo "  --enable-protocol=NAME   enable protocol NAME"
 128   echo "  --disable-protocol=NAME  disable protocol NAME"
 129   echo "  --disable-protocols      disable all protocols"
 130   echo "  --disable-indevs         disable input devices"
 131   echo "  --disable-outdevs        disable output devices"
 132   echo "  --disable-devices        disable all devices"
 133   echo "  --enable-filter=NAME     enable filter NAME"
 134   echo "  --disable-filter=NAME    disable filter NAME"
 135   echo "  --disable-filters        disable all filters"
 136   echo "  --list-decoders          show all available decoders"
 137   echo "  --list-encoders          show all available encoders"
 138   echo "  --list-muxers            show all available muxers"
 139   echo "  --list-demuxers          show all available demuxers"
 140   echo "  --list-parsers           show all available parsers"
 141   echo "  --list-protocols         show all available protocols"
 142   echo "  --list-bsfs              show all available bitstream filters"
 143   echo "  --list-indevs            show all available input devices"
 144   echo "  --list-outdevs           show all available output devices"
 145   echo "  --list-filters           show all available filters"
 146   echo
 147   echo "External library support:"
 148   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 149   echo "  --enable-bzlib           enable bzlib [autodetect]"
 150   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
 151   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
 152   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 153   echo "                           and libraw1394 [no]"
 154   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 155   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 156   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 157   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 158   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 159   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 160   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 161   echo "                           native (de)muxer exists [no]"
 162   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 163   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 164   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 165   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 166   echo "                           native implementation exists [no]"
 167   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 168   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 169   echo "                           native MPEG-4/Xvid encoder exists [no]"
 170   echo "  --enable-mlib            enable Sun medialib [no]"
 171   echo "  --enable-zlib            enable zlib [autodetect]"
 172   echo ""
 173   echo "Advanced options (experts only):"
 174   echo "  --source-path=PATH       path to source code [$source_path]"
 175   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 176   echo "  --enable-cross-compile   assume a cross-compiler is used"
 177   echo "  --target-os=OS           compiler targets OS [$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 [$arch]"
 192   echo "  --cpu=CPU                select the minimum required CPU (affects"
 193   echo "                           instruction selection, may crash on older CPUs)"
 194   echo "  --enable-powerpc-perf    enable performance report on PPC"
 195   echo "                           (requires enabling PMC)"
 196   echo "  --disable-altivec        disable AltiVec optimizations"
 197   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 198   echo "  --disable-mmx            disable MMX optimizations"
 199   echo "  --disable-mmx2           disable MMX2 optimizations"
 200   echo "  --disable-sse            disable SSE optimizations"
 201   echo "  --disable-ssse3          disable SSSE3 optimizations"
 202   echo "  --disable-armv5te        disable armv5te optimizations"
 203   echo "  --disable-armv6          disable armv6 optimizations"
 204   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 205   echo "  --disable-armvfp         disable ARM VFP optimizations"
 206   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 207   echo "  --disable-mmi            disable MMI optimizations"
 208   echo "  --disable-neon           disable neon optimizations"
 209   echo "  --disable-vis            disable VIS optimizations"
 210   echo "  --disable-yasm           disable use of yasm assembler"
 211   echo
 212   echo "Developer options (useful when working on FFmpeg itself):"
 213   echo "  --disable-debug          disable debugging symbols"
 214   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 215   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 216   echo "  --disable-optimizations  disable compiler optimizations"
 217   echo "  --enable-extra-warnings  enable more compiler warnings"
 218   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 219   echo ""
 220   echo "NOTE: Object files are built at the place where configure is launched."
 221   exit 0
 222 }
 223
 224 log(){
 225     echo "$@" >> $logfile
 226 }
 227
 228 log_file(){
 229     log BEGIN $1
 230     pr -n -t $1 >> $logfile
 231     log END $1
 232 }
 233
 234 echolog(){
 235     log "$@"
 236     echo "$@"
 237 }
 238
 239 die(){
 240     echolog "$@"
 241     cat <<EOF
 242 If you think configure made a mistake, make sure you are using the latest
 243 version from SVN.  If the latest version fails, report the problem to the
 244 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 245 EOF
 246     if disabled logging; then
 247         cat <<EOF
 248 Rerun configure with logging enabled (do not use --disable-logging), and
 249 include the log this produces with your report.
 250 EOF
 251     else
 252 cat <<EOF
 253 Include the log file "$logfile" produced by configure as this will help
 254 solving the problem.
 255 EOF
 256     fi
 257     rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
 258     exit 1
 259 }
 260
 261 # Avoid locale weirdness, besides we really just want to translate ASCII.
 262 toupper(){
 263     echo "$@" | 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 do_enable_deep(){
 326     for var; do
 327         enabled $var && continue
 328         eval sel="\$${var}_select"
 329         eval sgs="\$${var}_suggest"
 330         pushvar var sgs
 331         enable_deep $sel
 332         popvar sgs
 333         enable_deep_weak $sgs
 334         popvar var
 335     done
 336 }
 337
 338 enable_deep(){
 339     do_enable_deep $*
 340     enable $*
 341 }
 342
 343 enable_deep_weak(){
 344     do_enable_deep $*
 345     enable_weak $*
 346 }
 347
 348 enabled(){
 349     test "${1#!}" = "$1" && op== || op=!=
 350     eval test "x\$${1#!}" $op "xyes"
 351 }
 352
 353 disabled(){
 354     test "${1#!}" = "$1" && op== || op=!=
 355     eval test "x\$${1#!}" $op "xno"
 356 }
 357
 358 enabled_all(){
 359     for opt; do
 360         enabled $opt || return 1
 361     done
 362 }
 363
 364 disabled_all(){
 365     for opt; do
 366         disabled $opt || return 1
 367     done
 368 }
 369
 370 enabled_any(){
 371     for opt; do
 372         enabled $opt && return 0
 373     done
 374 }
 375
 376 disabled_any(){
 377     for opt; do
 378         disabled $opt && return 0
 379     done
 380     return 1
 381 }
 382
 383 set_default(){
 384     for opt; do
 385         eval : \${$opt:=\$${opt}_default}
 386     done
 387 }
 388
 389 is_in(){
 390     value=$1
 391     shift
 392     for var in $*; do
 393         [ $var = $value ] && return 0
 394     done
 395     return 1
 396 }
 397
 398 check_deps(){
 399     for cfg; do
 400         cfg="${cfg#!}"
 401         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 402         disabled ${cfg}_checking && continue
 403         enable ${cfg}_checking
 404
 405         eval dep_all="\$${cfg}_deps"
 406         eval dep_any="\$${cfg}_deps_any"
 407         eval dep_sel="\$${cfg}_select"
 408         eval dep_sgs="\$${cfg}_suggest"
 409
 410         pushvar cfg dep_all dep_any dep_sel dep_sgs
 411         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 412         popvar cfg dep_all dep_any dep_sel dep_sgs
 413
 414         enabled_all  $dep_all || disable $cfg
 415         enabled_any  $dep_any || disable $cfg
 416         disabled_any $dep_sel && disable $cfg
 417
 418         if enabled $cfg; then
 419             eval dep_extralibs="\$${cfg}_extralibs"
 420             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 421             enable_deep $dep_sel
 422             enable_deep_weak $dep_sgs
 423         fi
 424
 425         disable ${cfg}_checking
 426     done
 427 }
 428
 429 print_config(){
 430     pfx=$1
 431     header=$2
 432     makefile=$3
 433     shift 3
 434     for cfg; do
 435         ucname="`toupper $cfg`"
 436         if enabled $cfg; then
 437             echo "#define ${pfx}${ucname} 1" >> $header
 438             echo "${pfx}${ucname}=yes" >> $makefile
 439         else
 440             echo "#define ${pfx}${ucname} 0" >> $header
 441         fi
 442     done
 443 }
 444
 445 flags_saved(){
 446     (: ${SAVE_CFLAGS?}) 2> /dev/null
 447 }
 448
 449 save_flags(){
 450     flags_saved && return
 451     SAVE_CFLAGS="$CFLAGS"
 452     SAVE_LDFLAGS="$LDFLAGS"
 453     SAVE_extralibs="$extralibs"
 454 }
 455
 456 restore_flags(){
 457     flags_saved || return
 458     CFLAGS="$SAVE_CFLAGS"
 459     LDFLAGS="$SAVE_LDFLAGS"
 460     extralibs="$SAVE_extralibs"
 461     unset SAVE_CFLAGS
 462     unset SAVE_LDFLAGS
 463     unset SAVE_extralibs
 464 }
 465
 466 temp_cflags(){
 467     save_flags
 468     CFLAGS="$CFLAGS $*"
 469 }
 470
 471 temp_ldflags(){
 472     save_flags
 473     LDFLAGS="$LDFLAGS $*"
 474 }
 475
 476 temp_extralibs(){
 477     save_flags
 478     extralibs="$extralibs $*"
 479 }
 480
 481 append(){
 482     var=$1
 483     shift
 484     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 485     eval "$var=\"\$$var $*\""
 486 }
 487
 488 add_cflags(){
 489     append CFLAGS "$@"
 490 }
 491
 492 add_ldflags(){
 493     append LDFLAGS "$@"
 494 }
 495
 496 add_extralibs(){
 497     append extralibs "$@"
 498 }
 499
 500 check_cmd(){
 501     log "$@"
 502     "$@" >> $logfile 2>&1
 503 }
 504
 505 check_cc(){
 506     log check_cc "$@"
 507     cat > $TMPC
 508     log_file $TMPC
 509     check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 510 }
 511
 512 check_cpp(){
 513     log check_cpp "$@"
 514     cat > $TMPC
 515     log_file $TMPC
 516     check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 517 }
 518
 519 check_asm(){
 520     log check_asm "$@"
 521     name="$1"
 522     asm="$2"
 523     shift 2
 524     check_cc "$@" <<EOF && enable $name || disable $name
 525 void foo(void){ __asm__ volatile($asm); }
 526 EOF
 527 }
 528
 529 check_yasm(){
 530     log check_yasm "$@"
 531     echo "$1" > $TMPS
 532     log_file $TMPS
 533     shift 1
 534     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 535 }
 536
 537 check_ld(){
 538     log check_ld "$@"
 539     check_cc || return
 540     flags=''
 541     libs=''
 542     for f; do
 543         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 544     done
 545     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 546 }
 547
 548 check_cflags(){
 549     log check_cflags "$@"
 550     check_cc "$@" <<EOF && add_cflags "$@"
 551 int x;
 552 EOF
 553 }
 554
 555 check_ldflags(){
 556     log check_ldflags "$@"
 557     check_ld "$@" <<EOF && add_ldflags "$@"
 558 int main(void){ return 0; }
 559 EOF
 560 }
 561
 562 check_header(){
 563     log check_header "$@"
 564     header=$1
 565     shift
 566     var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 567     disable $var
 568     check_cpp "$@" <<EOF && enable $var
 569 #include <$header>
 570 int x;
 571 EOF
 572 }
 573
 574 check_func(){
 575     log check_func "$@"
 576     func=$1
 577     shift
 578     disable $func
 579     check_ld "$@" <<EOF && enable $func
 580 extern int $func();
 581 int main(void){ $func(); }
 582 EOF
 583 }
 584
 585 check_func_headers(){
 586     log check_func_headers "$@"
 587     headers=$1
 588     func=$2
 589     shift 2
 590     disable $func
 591     incs=""
 592     for hdr in $headers; do
 593         incs="$incs
 594 #include <$hdr>"
 595     done
 596     check_ld "$@" <<EOF && enable $func
 597 $incs
 598 int main(int argc, char **argv){
 599     (void) $func;
 600     return 0;
 601 }
 602 EOF
 603 }
 604
 605 check_cpp_condition(){
 606     log check_cpp_condition "$@"
 607     header=$1
 608     condition=$2
 609     check_cpp <<EOF
 610 #include <$header>
 611 #if !($condition)
 612 #error "unsatisfied condition: $condition"
 613 #endif
 614 EOF
 615 }
 616
 617 check_lib(){
 618     log check_lib "$@"
 619     header="$1"
 620     func="$2"
 621     shift 2
 622     temp_extralibs "$@"
 623     check_header $header && check_func $func && add_extralibs "$@"
 624     err=$?
 625     restore_flags
 626     return $err
 627 }
 628
 629 check_lib2(){
 630     log check_lib2 "$@"
 631     headers="$1"
 632     func="$2"
 633     shift 2
 634     temp_extralibs "$@"
 635     check_func_headers "$headers" $func && add_extralibs "$@"
 636     err=$?
 637     restore_flags
 638     return $err
 639 }
 640
 641 check_exec(){
 642     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 643 }
 644
 645 check_exec_crash(){
 646     code=`cat`
 647
 648     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 649     # are safe but may not be available everywhere.  Thus we use
 650     # raise(SIGTERM) instead.  The check is run in a subshell so we
 651     # can redirect the "Terminated" message from the shell.  SIGBUS
 652     # is not defined by standard C so it is used conditionally.
 653
 654     (check_exec "$@") >> $logfile 2>&1 <<EOF
 655 #include <signal.h>
 656 static void sighandler(int sig){
 657     raise(SIGTERM);
 658 }
 659 int main(void){
 660     signal(SIGILL, sighandler);
 661     signal(SIGFPE, sighandler);
 662     signal(SIGSEGV, sighandler);
 663 #ifdef SIGBUS
 664     signal(SIGBUS, sighandler);
 665 #endif
 666     { $code }
 667 }
 668 EOF
 669 }
 670
 671 check_type(){
 672     log check_type "$@"
 673     headers=$1
 674     type=$2
 675     shift 2
 676     disable $type
 677     incs=""
 678     for hdr in $headers; do
 679         incs="$incs
 680 #include <$hdr>"
 681     done
 682     check_cc "$@" <<EOF && enable $type
 683 $incs
 684 $type v;
 685 EOF
 686 }
 687
 688 require(){
 689     name="$1"
 690     header="$2"
 691     func="$3"
 692     shift 3
 693     check_lib $header $func "$@" || die "ERROR: $name not found"
 694 }
 695
 696 require2(){
 697     name="$1"
 698     headers="$2"
 699     func="$3"
 700     shift 3
 701     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 702 }
 703
 704 check_foo_config(){
 705     cfg=$1
 706     pkg=$2
 707     header=$3
 708     func=$4
 709     shift 4
 710     disable $cfg
 711     check_cmd ${pkg}-config --version
 712     err=$?
 713     if test "$err" = 0; then
 714         temp_cflags `${pkg}-config --cflags`
 715         temp_extralibs `${pkg}-config --libs`
 716         check_lib "$@" $header $func && enable $cfg
 717     fi
 718     return $err
 719 }
 720
 721 apply(){
 722     file=$1
 723     shift
 724     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 725 }
 726
 727 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 728 # system-dependent things.
 729
 730 COMPONENT_LIST="
 731     bsfs
 732     decoders
 733     demuxers
 734     encoders
 735     filters
 736     indevs
 737     muxers
 738     outdevs
 739     parsers
 740     protocols
 741 "
 742
 743 CONFIG_LIST="
 744     $COMPONENT_LIST
 745     aandct
 746     avfilter
 747     avfilter_lavf
 748     avisynth
 749     beos_netserver
 750     bzlib
 751     fastdiv
 752     ffmpeg
 753     ffplay
 754     ffserver
 755     fft
 756     golomb
 757     gpl
 758     gprof
 759     gray
 760     hardcoded_tables
 761     ipv6
 762     libamr_nb
 763     libamr_wb
 764     libdc1394
 765     libdirac
 766     libfaac
 767     libfaad
 768     libfaadbin
 769     libgsm
 770     libmp3lame
 771     libnut
 772     libschroedinger
 773     libspeex
 774     libtheora
 775     libvorbis
 776     libx264
 777     libxvid
 778     mdct
 779     memalign_hack
 780     mlib
 781     mpegaudio_hp
 782     network
 783     nonfree
 784     postproc
 785     powerpc_perf
 786     rdft
 787     shared
 788     small
 789     static
 790     swscale
 791     vdpau
 792     vhook
 793     x11grab
 794     xvmc
 795     zlib
 796 "
 797
 798 THREADS_LIST='
 799     beosthreads
 800     os2threads
 801     pthreads
 802     w32threads
 803 '
 804
 805 ARCH_LIST='
 806     alpha
 807     arm
 808     bfin
 809     ia64
 810     m68k
 811     mips
 812     parisc
 813     ppc
 814     s390
 815     sh4
 816     sparc
 817     sparc64
 818     x86
 819     x86_32
 820     x86_64
 821 '
 822
 823 ARCH_EXT_LIST='
 824     altivec
 825     amd3dnow
 826     armv5te
 827     armv6
 828     armv6t2
 829     armvfp
 830     iwmmxt
 831     mmi
 832     mmx
 833     mmx2
 834     neon
 835     ppc4xx
 836     sse
 837     ssse3
 838     vis
 839 '
 840
 841 HAVE_LIST="
 842     $ARCH_EXT_LIST
 843     $THREADS_LIST
 844     alsa_asoundlib_h
 845     altivec_h
 846     arpa_inet_h
 847     bswap
 848     closesocket
 849     cmov
 850     conio_h
 851     dcbzl
 852     dev_bktr_ioctl_bt848_h
 853     dev_bktr_ioctl_meteor_h
 854     dev_ic_bt8xx_h
 855     dev_video_meteor_ioctl_meteor_h
 856     dev_video_bktr_ioctl_bt848_h
 857     dlfcn_h
 858     dlopen
 859     dos_paths
 860     ebp_available
 861     ebx_available
 862     fast_64bit
 863     fast_cmov
 864     fast_unaligned
 865     fork
 866     freetype2
 867     gethrtime
 868     GetProcessTimes
 869     getrusage
 870     imlib2
 871     inet_aton
 872     inline_asm
 873     libdc1394_1
 874     libdc1394_2
 875     llrint
 876     lrint
 877     lrintf
 878     machine_ioctl_bt848_h
 879     machine_ioctl_meteor_h
 880     malloc_h
 881     memalign
 882     mkstemp
 883     pld
 884     posix_memalign
 885     ppc64
 886     round
 887     roundf
 888     sdl
 889     sdl_video_size
 890     setmode
 891     socklen_t
 892     soundcard_h
 893     poll_h
 894     sys_mman_h
 895     sys_resource_h
 896     sys_select_h
 897     sys_soundcard_h
 898     sys_videoio_h
 899     termios_h
 900     threads
 901     truncf
 902     winsock2_h
 903     yasm
 904 "
 905
 906 # options emitted with CONFIG_ prefix but not available on command line
 907 CONFIG_EXTRA="
 908     fft_mmx
 909     oldscaler
 910 "
 911
 912 CMDLINE_SELECT="
 913     $ARCH_EXT_LIST
 914     $CONFIG_LIST
 915     $THREADS_LIST
 916     cross_compile
 917     debug
 918     extra_warnings
 919     logging
 920     optimizations
 921     stripping
 922     yasm
 923 "
 924
 925 PATHS_LIST='
 926     bindir
 927     datadir
 928     incdir
 929     libdir
 930     mandir
 931     prefix
 932     shlibdir
 933 '
 934
 935 CMDLINE_SET="
 936     $PATHS_LIST
 937     arch
 938     build_suffix
 939     cc
 940     cpu
 941     cross_prefix
 942     extra_version
 943     host_cc
 944     host_cflags
 945     host_ldflags
 946     host_libs
 947     logfile
 948     nm
 949     source_path
 950     target_exec
 951     target_os
 952     target_path
 953 "
 954
 955 # code dependency declarations
 956
 957 # architecture extensions
 958 altivec_deps="ppc"
 959 amd3dnow_deps="mmx"
 960 armv5te_deps="arm"
 961 armv6_deps="arm"
 962 armv6t2_deps="arm"
 963 armvfp_deps="arm"
 964 iwmmxt_deps="arm"
 965 mmi_deps="mips"
 966 mmx_deps="x86"
 967 mmx2_deps="mmx"
 968 neon_deps="arm"
 969 ppc4xx_deps="ppc"
 970 sse_deps="mmx"
 971 ssse3_deps="sse"
 972 vis_deps="sparc"
 973
 974 # common features
 975 fft_suggest="fft_mmx"
 976 fft_mmx_deps="mmx yasm"
 977 oldscaler_deps="!swscale"
 978
 979 # decoders / encoders
 980 aac_decoder_select="fft mdct"
 981 ac3_decoder_deps="gpl"
 982 ac3_decoder_select="fft mdct"
 983 atrac3_decoder_select="fft mdct"
 984 cavs_decoder_select="golomb"
 985 cook_decoder_select="fft mdct"
 986 cscd_decoder_suggest="zlib"
 987 dca_decoder_select="fft mdct"
 988 dnxhd_encoder_select="aandct"
 989 dxa_decoder_select="zlib"
 990 eac3_decoder_deps="gpl"
 991 eac3_decoder_select="fft mdct"
 992 eatgq_decoder_select="aandct"
 993 ffv1_decoder_select="golomb"
 994 flac_decoder_select="golomb"
 995 flac_encoder_select="golomb"
 996 flashsv_decoder_select="zlib"
 997 flashsv_encoder_select="zlib"
 998 flv_encoder_select="aandct"
 999 h261_encoder_select="aandct"
1000 h263_encoder_select="aandct"
1001 h263p_encoder_select="aandct"
1002 h264_decoder_select="golomb"
1003 h264_vdpau_decoder_deps="vdpau"
1004 imc_decoder_select="fft mdct"
1005 jpegls_decoder_select="golomb"
1006 jpegls_encoder_select="golomb"
1007 ljpeg_encoder_select="aandct"
1008 loco_decoder_select="golomb"
1009 mjpeg_encoder_select="aandct"
1010 mpeg1video_encoder_select="aandct"
1011 mpeg2video_encoder_select="aandct"
1012 mpeg4_encoder_select="aandct"
1013 mpeg_vdpau_decoder_deps="vdpau"
1014 mpeg1_vdpau_decoder_deps="vdpau"
1015 mpeg_xvmc_decoder_deps="xvmc X11_extensions_XvMClib_h"
1016 msmpeg4v1_encoder_select="aandct"
1017 msmpeg4v2_encoder_select="aandct"
1018 msmpeg4v3_encoder_select="aandct"
1019 nellymoser_decoder_select="fft mdct"
1020 nellymoser_encoder_select="fft mdct"
1021 png_decoder_select="zlib"
1022 png_encoder_select="zlib"
1023 qdm2_decoder_select="fft mdct rdft"
1024 rv10_encoder_select="aandct"
1025 rv20_encoder_select="aandct"
1026 shorten_decoder_select="golomb"
1027 sonic_decoder_select="golomb"
1028 sonic_encoder_select="golomb"
1029 sonic_ls_encoder_select="golomb"
1030 svq3_decoder_select="golomb"
1031 svq3_decoder_suggest="zlib"
1032 tiff_decoder_suggest="zlib"
1033 tiff_encoder_suggest="zlib"
1034 tscc_decoder_select="zlib"
1035 vc1_vdpau_decoder_deps="vdpau"
1036 vorbis_decoder_select="fft mdct"
1037 vorbis_encoder_select="fft mdct"
1038 wmav1_decoder_select="fft mdct"
1039 wmav1_encoder_select="fft mdct"
1040 wmav2_decoder_select="fft mdct"
1041 wmav2_encoder_select="fft mdct"
1042 wmv1_encoder_select="aandct"
1043 wmv2_encoder_select="aandct"
1044 wmv3_vdpau_decoder_deps="vdpau"
1045 zlib_decoder_select="zlib"
1046 zlib_encoder_select="zlib"
1047 zmbv_decoder_select="zlib"
1048 zmbv_encoder_select="zlib"
1049
1050 # external libraries
1051 libamr_nb_decoder_deps="libamr_nb"
1052 libamr_nb_encoder_deps="libamr_nb"
1053 libamr_wb_decoder_deps="libamr_wb"
1054 libamr_wb_encoder_deps="libamr_wb"
1055 libdirac_decoder_deps="libdirac !libschroedinger"
1056 libdirac_encoder_deps="libdirac"
1057 libfaac_encoder_deps="libfaac"
1058 libfaad_decoder_deps="libfaad"
1059 libfaadbin_decoder_extralibs='$ldl'
1060 libgsm_decoder_deps="libgsm"
1061 libgsm_encoder_deps="libgsm"
1062 libgsm_ms_decoder_deps="libgsm"
1063 libgsm_ms_encoder_deps="libgsm"
1064 libmp3lame_encoder_deps="libmp3lame"
1065 libschroedinger_decoder_deps="libschroedinger"
1066 libschroedinger_encoder_deps="libschroedinger"
1067 libspeex_decoder_deps="libspeex"
1068 libtheora_encoder_deps="libtheora"
1069 libvorbis_encoder_deps="libvorbis"
1070 libx264_encoder_deps="libx264"
1071 libxvid_encoder_deps="libxvid"
1072 mpeg4aac_decoder_deps="libfaad"
1073 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1074
1075 # demuxers / muxers
1076 ac3_demuxer_deps="ac3_parser"
1077 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1078 alsa_demuxer_extralibs="-lasound"
1079 alsa_muxer_deps="alsa_asoundlib_h"
1080 alsa_muxer_extralibs="-lasound"
1081 audio_beos_demuxer_deps="audio_beos"
1082 audio_beos_demuxer_extralibs="-lmedia -lbe"
1083 audio_beos_muxer_deps="audio_beos"
1084 audio_beos_muxer_extralibs="-lmedia -lbe"
1085 avisynth_demuxer_deps="avisynth"
1086 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1087 dirac_demuxer_deps="dirac_parser"
1088 dv1394_demuxer_deps="dv1394 dv_demuxer"
1089 libdc1394_demuxer_deps="libdc1394"
1090 libnut_demuxer_deps="libnut"
1091 libnut_muxer_deps="libnut"
1092 matroska_demuxer_suggest="zlib bzlib"
1093 mov_demuxer_suggest="zlib"
1094 mp3_demuxer_deps="mpegaudio_parser"
1095 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1096 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1097 redir_demuxer_deps="network"
1098 rtp_muxer_deps="network rtp_protocol"
1099 rtsp_demuxer_deps="sdp_demuxer"
1100 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1101 v4l_demuxer_deps="linux_videodev_h"
1102 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1103 vfwcap_demuxer_deps="capCreateCaptureWindow"
1104 vfwcap_demuxer_extralibs="-lvfw32"
1105 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1106 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1107
1108 # protocols
1109 http_protocol_deps="network"
1110 rtp_protocol_deps="udp_protocol"
1111 tcp_protocol_deps="network"
1112 udp_protocol_deps="network"
1113
1114 # filters
1115 movie_filter_deps="avfilter_lavf"
1116
1117 # programs
1118 ffplay_deps="sdl"
1119 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1120 ffserver_extralibs='$ldl'
1121 vhook_extralibs='$ldl'
1122
1123
1124 # default parameters
1125
1126 logfile="config.err"
1127
1128 # installation paths
1129 prefix_default="/usr/local"
1130 bindir_default='${prefix}/bin'
1131 datadir_default='${prefix}/share/ffmpeg'
1132 incdir_default='${prefix}/include'
1133 libdir_default='${prefix}/lib'
1134 mandir_default='${prefix}/share/man'
1135 shlibdir_default="$libdir_default"
1136
1137 # toolchain
1138 ar="ar"
1139 cc_default="gcc"
1140 host_cc_default="gcc"
1141 ln_s="ln -sf"
1142 nm_default="nm"
1143 objformat="elf"
1144 ranlib="ranlib"
1145 strip="strip"
1146 yasmexe="yasm"
1147
1148 # machine
1149 arch=`uname -m`
1150 cpu="generic"
1151
1152 # OS
1153 target_os=$(tolower $(uname -s))
1154
1155 # configurable options
1156 enable debug
1157 enable ffmpeg
1158 enable ffplay
1159 enable ffserver
1160 enable ipv6
1161 enable mpegaudio_hp
1162 enable network
1163 enable oldscaler
1164 enable optimizations
1165 enable protocols
1166 enable static
1167 enable stripping
1168 vhook="default"
1169
1170 # build settings
1171 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1172 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1173 VHOOKSHFLAGS='$(SHFLAGS)'
1174 FFSERVERLDFLAGS=-Wl,-E
1175 LIBPREF="lib"
1176 LIBSUF=".a"
1177 FULLNAME='$(NAME)$(BUILDSUF)'
1178 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1179 SLIBPREF="lib"
1180 SLIBSUF=".so"
1181 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1182 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1183 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1184 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1185
1186 host_cflags='-O3 -g -Wall'
1187 host_libs='-lm'
1188
1189 target_path='.'
1190
1191 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1192 # full relative path for objects in subdirectories for non-recursive Make.
1193 DEPEND_CMD='$(CC) $(CFLAGS) -MM -MG $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," -e "s,\\([[:space:]]\\)\\(version\\.h\\),\\1\$$(BUILD_ROOT_REL)/\\2,"'
1194
1195 # find source path
1196 source_path="`dirname \"$0\"`"
1197 enable source_path_used
1198 if test -z "$source_path" -o "$source_path" = "." ; then
1199     source_path="`pwd`"
1200     disable source_path_used
1201 else
1202     source_path="`cd \"$source_path\"; pwd`"
1203     echo "$source_path" | grep -q '[[:blank:]]' &&
1204         die "Out of tree builds are impossible with whitespace in source path."
1205 fi
1206
1207 FFMPEG_CONFIGURATION="$@"
1208
1209 find_things(){
1210     thing=$1
1211     pattern=$2
1212     file=$source_path/$3
1213     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1214 }
1215
1216 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1217 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1218 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1219 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1220 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1221 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1222 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1223 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1224 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1225 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1226
1227 enable $ARCH_EXT_LIST \
1228        $DECODER_LIST \
1229        $ENCODER_LIST \
1230        $PARSER_LIST \
1231        $BSF_LIST \
1232        $DEMUXER_LIST \
1233        $MUXER_LIST \
1234        $FILTER_LIST \
1235        $PROTOCOL_LIST \
1236        $INDEV_LIST \
1237        $OUTDEV_LIST \
1238
1239 die_unknown(){
1240     echo "Unknown option \"$1\"."
1241     echo "See $0 --help for available options."
1242     exit 1
1243 }
1244
1245 show_list() {
1246     suffix=_$1
1247     shift
1248     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1249     exit 0
1250 }
1251
1252 for opt do
1253     optval="${opt#*=}"
1254     case "$opt" in
1255     --extra-cflags=*) add_cflags $optval
1256     ;;
1257     --extra-ldflags=*) add_ldflags $optval
1258     ;;
1259     --extra-libs=*) add_extralibs $optval
1260     ;;
1261     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1262     ;;
1263     --enable-debug=*) debuglevel="$optval"
1264     ;;
1265     --enable-*=*|--disable-*=*)
1266     eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
1267     case "$thing" in
1268         encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1269         *) die_unknown "$opt" ;;
1270     esac
1271     ;;
1272     --enable-?*|--disable-?*)
1273     eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
1274     if is_in $option $COMPONENT_LIST; then
1275         eval $action \$$(toupper ${option%s})_LIST
1276     elif is_in $option $CMDLINE_SELECT; then
1277         $action $option
1278     else
1279         die_unknown $opt
1280     fi
1281     ;;
1282     --list-*)
1283         NAME="${opt#--list-}"
1284         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1285         NAME=${NAME%s}
1286         eval show_list $NAME \$$(toupper $NAME)_LIST
1287     ;;
1288     --help|-h) show_help
1289     ;;
1290     *)
1291     optname="${opt%%=*}"
1292     optname="${optname#--}"
1293     optname=$(echo "$optname" | sed 's/-/_/g')
1294     is_in $optname $CMDLINE_SET || die_unknown $opt
1295     eval $optname='$optval'
1296     ;;
1297     esac
1298 done
1299
1300 disabled logging && logfile=/dev/null
1301
1302 echo "# $0 $@" > $logfile
1303 set >> $logfile
1304
1305 test -n "$cross_prefix" && enable cross_compile
1306
1307 ar="${cross_prefix}${ar}"
1308 cc_default="${cross_prefix}${cc_default}"
1309 nm_default="${cross_prefix}${nm_default}"
1310 ranlib="${cross_prefix}${ranlib}"
1311 strip="${cross_prefix}${strip}"
1312
1313 set_default cc nm
1314 enabled cross_compile || host_cc_default=$cc
1315 set_default host_cc
1316
1317 case $target_os in
1318     mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) EXESUF=.exe ;;
1319 esac
1320
1321 # set temporary file name
1322 : ${TMPDIR:=$TEMPDIR}
1323 : ${TMPDIR:=$TMP}
1324 : ${TMPDIR:=/tmp}
1325
1326 TMPC="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
1327 TMPE="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}${EXESUF}"
1328 TMPH="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
1329 TMPO="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
1330 TMPS="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
1331 TMPSH="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.sh"
1332
1333 # make sure we can execute files in $TMPDIR
1334 cat > $TMPSH 2>> $logfile <<EOF
1335 #! /bin/sh
1336 EOF
1337 chmod +x $TMPSH >> $logfile 2>&1
1338 if ! $TMPSH >> $logfile 2>&1; then
1339     cat <<EOF
1340 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1341 variable to another directory and make sure that it is not mounted noexec.
1342 EOF
1343     die "Sanity test failed."
1344 fi
1345 rm $TMPSH
1346
1347 # compiler sanity check
1348 check_exec <<EOF
1349 int main(void){ return 0; }
1350 EOF
1351 if test "$?" != 0; then
1352     echo "$cc is unable to create an executable file."
1353     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1354         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1355         echo "Only do this if you know what cross compiling means."
1356     fi
1357     die "C compiler test failed."
1358 fi
1359
1360 check_cflags -std=c99
1361
1362 case "$arch" in
1363     i386|i486|i586|i686|i86pc|BePC)
1364         arch="x86"
1365         subarch="x86_32"
1366         enable fast_unaligned
1367     ;;
1368     x86_64|amd64)
1369         arch="x86"
1370         subarch="x86_32"
1371         enable cmov
1372         enable fast_cmov
1373         enable fast_unaligned
1374         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1375         int test[sizeof(char*) - 7];
1376 EOF
1377     ;;
1378     arm|armv[4567]*l)
1379         arch="arm"
1380     ;;
1381     alpha)
1382         arch="alpha"
1383         enable fast_64bit
1384         check_cflags -mieee
1385     ;;
1386     "Power Macintosh"|ppc|powerpc)
1387         arch="ppc"
1388         enable fast_unaligned
1389     ;;
1390     ppc64)
1391         arch="ppc"
1392         enable fast_64bit
1393         enable fast_unaligned
1394     ;;
1395     mips|mipsel|IP*)
1396         arch="mips"
1397     ;;
1398     mips64)
1399         arch="mips"
1400         enable fast_64bit
1401     ;;
1402     sun4u|sparc64)
1403         arch="sparc"
1404         subarch="sparc64"
1405         enable fast_64bit
1406     ;;
1407     sparc)
1408         arch="sparc"
1409     ;;
1410     sh4|sh)
1411         arch="sh4"
1412     ;;
1413     parisc|hppa)
1414         arch="parisc"
1415     ;;
1416     parisc64|hppa64)
1417         arch="parisc"
1418         enable fast_64bit
1419     ;;
1420     s390|s390x)
1421         arch="s390"
1422     ;;
1423     m68k)
1424         arch="m68k"
1425     ;;
1426     ia64)
1427         arch="ia64"
1428         enable fast_64bit
1429     ;;
1430     bfin)
1431         arch="bfin"
1432     ;;
1433     *)
1434         arch="unknown"
1435     ;;
1436 esac
1437
1438 enable $arch $subarch
1439
1440 # OS specific
1441 case $target_os in
1442     beos|haiku|zeta)
1443         prefix_default="$HOME/config"
1444         # helps building libavcodec
1445         add_cflags -DPIC -fomit-frame-pointer
1446         # 3 gcc releases known for BeOS, each with ugly bugs
1447         gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
1448         case "$gcc_version" in
1449           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1450             disable mmx
1451             ;;
1452           *20010315*) echo "BeBits gcc"
1453             add_cflags -fno-expensive-optimizations
1454             ;;
1455         esac
1456         SHFLAGS=-nostart
1457         # enable BeOS things
1458         enable audio_beos
1459         # no need for libm, but the inet stuff
1460         # Check for BONE
1461         # XXX: actually should check for NOT net_server
1462         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1463             network_extralibs="-lbind -lsocket"
1464         else
1465             enable beos_netserver
1466             network_extralibs="-lnet"
1467         fi ;;
1468     sunos)
1469         FFSERVERLDFLAGS=""
1470         SHFLAGS='-shared -Wl,-h,$$(@F)'
1471         network_extralibs="-lsocket -lnsl"
1472         add_cflags -D__EXTENSIONS__
1473         ;;
1474     netbsd)
1475         oss_demuxer_extralibs="-lossaudio"
1476         oss_muxer_extralibs="-lossaudio"
1477         ;;
1478     openbsd)
1479         disable need_memalign
1480         LIBOBJFLAGS='$(PIC)'
1481         SHFLAGS='-shared'
1482         oss_demuxer_extralibs="-lossaudio"
1483         oss_muxer_extralibs="-lossaudio"
1484         ;;
1485     freebsd)
1486         disable need_memalign
1487         ;;
1488     bsd/os)
1489         osextralibs="-lpoll -lgnugetopt"
1490         strip="strip -d"
1491         ;;
1492     darwin)
1493         disable need_memalign
1494         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1495         VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(SHLIBDIR)/vhook/$$(@F)'
1496         strip="strip -x"
1497         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1498         SLIBSUF=".dylib"
1499         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1500         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1501         FFSERVERLDFLAGS=-Wl,-bind_at_load
1502         objformat="macho"
1503         enabled x86_64 && objformat="macho64"
1504         ;;
1505     mingw32*)
1506         target_os=mingw32
1507         LIBTARGET=i386
1508         if enabled x86_64; then
1509             disable need_memalign
1510             LIBTARGET=x64
1511         fi
1512         shlibdir_default="$bindir_default"
1513         VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
1514         VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1515         if enabled swscale; then
1516             VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
1517             VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
1518         fi
1519         disable ffserver
1520         SLIBPREF=""
1521         SLIBSUF=".dll"
1522         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1523         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1524         SLIB_EXTRA_CMD='-lib /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1525         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1526             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1527         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1528         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1529         objformat="win32"
1530         enable dos_paths
1531         if ! enabled x86_64; then
1532             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1533                 die "ERROR: MinGW runtime version must be >= 3.15."
1534             enabled_any avisynth vfwcap_demuxer &&
1535                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1536                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1537             fi
1538         ;;
1539     cygwin*)
1540         target_os=cygwin
1541         shlibdir_default="$bindir_default"
1542         VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
1543         VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1544         if enabled swscale; then
1545             VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
1546             VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
1547         fi
1548         SLIBPREF="cyg"
1549         SLIBSUF=".dll"
1550         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1551         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1552         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1553         objformat="win32"
1554         enable dos_paths
1555         ;;
1556     *-dos|freedos|opendos)
1557         disable ffplay ffserver vhook
1558         disable $INDEV_LIST $OUTDEV_LIST
1559         network_extralibs="-lsocket"
1560         objformat="coff"
1561         enable dos_paths
1562         ;;
1563     linux)
1564         enable dv1394
1565         ;;
1566     irix*)
1567         target_os=irix
1568         ranlib="echo ignoring ranlib"
1569         ;;
1570     os/2*)
1571         strip="lxlite"
1572         ln_s="cp -f"
1573         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1574         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1575         FFSERVERLDFLAGS=""
1576         LIBSUF="_s.a"
1577         SLIBPREF=""
1578         SLIBSUF=".dll"
1579         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1580         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1581         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1582           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1583           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1584           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1585           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1586           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1587         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1588           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1589         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1590         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1591         disable vhook
1592         enable dos_paths
1593         ;;
1594     interix)
1595         disable vhook
1596         ;;
1597
1598     *)
1599         die "Unknown OS '$target_os'."
1600         ;;
1601 esac
1602
1603 set_default $PATHS_LIST
1604
1605 add_extralibs $osextralibs
1606
1607 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1608 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1609
1610 # we need to build at least one lib type
1611 if ! enabled_any static shared; then
1612     cat <<EOF
1613 At least one library type must be built.
1614 Specify --enable-static to build the static libraries or --enable-shared to
1615 build the shared libraries as well. To only build the shared libraries specify
1616 --disable-static in addition to --enable-shared.
1617 EOF
1618     exit 1;
1619 fi
1620
1621 disabled static && LIBNAME=""
1622
1623 if enabled_any libfaad libfaadbin ; then
1624     if check_header faad.h; then
1625         check_cc <<EOF
1626 #include <faad.h>
1627 #ifndef FAAD2_VERSION
1628 ok faad1
1629 #endif
1630 int main(void) { return 0; }
1631 EOF
1632         test $? = 0 && enable libfaad2
1633     else
1634         die "FAAD test failed."
1635     fi
1636 fi
1637
1638
1639 if ! enabled gpl; then
1640     die_gpl_disabled(){
1641         name=$1
1642         shift
1643         enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1644     }
1645     die_gpl_disabled "The Postprocessing code" postproc
1646     die_gpl_disabled "libx264"                 libx264
1647     die_gpl_disabled "libxvidcore"             libxvid
1648     die_gpl_disabled "FAAD2"                   libfaad2
1649     die_gpl_disabled "The X11 grabber"         x11grab
1650     die_gpl_disabled "The software scaler"     swscale
1651 fi
1652
1653 if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1654     die "libamr is nonfree and --enable-nonfree is not specified."
1655 fi
1656
1657 check_deps $ARCH_EXT_LIST
1658
1659 test -z "$need_memalign" && need_memalign="$mmx"
1660
1661 #Darwin CC versions
1662 if test $target_os = darwin; then
1663     if $cc -v 2>&1 | grep -q xlc; then
1664         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1665     else
1666         add_cflags -pipe
1667         check_cflags -force_cpusubtype_ALL
1668         check_cflags -Wno-sign-compare
1669         enabled shared || check_cflags -mdynamic-no-pic
1670     fi
1671 fi
1672
1673 disabled optimizations || check_cflags -fomit-frame-pointer
1674
1675 # Add processor-specific flags
1676 if test $cpu != "generic"; then
1677     warn_altivec(){
1678         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1679     }
1680     case $cpu in
1681         601|ppc601|PowerPC601)
1682             add_cflags -mcpu=601
1683             warn_altivec enabled PPC601
1684         ;;
1685         603*|ppc603*|PowerPC603*)
1686             add_cflags -mcpu=603
1687             warn_altivec enabled PPC603
1688         ;;
1689         604*|ppc604*|PowerPC604*)
1690             add_cflags -mcpu=604
1691             warn_altivec enabled PPC604
1692         ;;
1693         G3|g3|75*|ppc75*|PowerPC75*)
1694             add_cflags -mcpu=750 -mpowerpc-gfxopt
1695             warn_altivec enabled PPC75x
1696         ;;
1697         G4|g4|745*|ppc745*|PowerPC745*)
1698             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1699             warn_altivec disabled PPC745x
1700         ;;
1701         74*|ppc74*|PowerPC74*)
1702             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1703             warn_altivec disabled PPC74xx
1704         ;;
1705         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1706             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1707             warn_altivec disabled PPC970
1708             enable ppc64
1709         ;;
1710         Cell|CELL|cell)
1711             add_cflags -mcpu=cell
1712             warn_altivec disabled Cell
1713             enable ppc64
1714         ;;
1715         # targets that do NOT support conditional mov (cmov)
1716         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1717             add_cflags -march=$cpu
1718             disable cmov
1719         ;;
1720         # targets that do support conditional mov (cmov)
1721         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1722             add_cflags -march=$cpu
1723             enable cmov
1724             enable fast_cmov
1725         ;;
1726         # targets that do support conditional mov but on which it's slow
1727         pentium4|pentium4m|prescott|nocona)
1728             add_cflags -march=$cpu
1729             enable cmov
1730             disable fast_cmov
1731         ;;
1732         sparc64)
1733             add_cflags -mcpu=v9
1734         ;;
1735         arm11*|cortex*)
1736             add_cflags -mcpu=$cpu
1737             enable fast_unaligned
1738         ;;
1739         armv*)
1740             add_cflags -march=$cpu
1741         ;;
1742         arm*)
1743             add_cflags -mcpu=$cpu
1744         ;;
1745         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1746             add_cflags -mcpu=$cpu
1747         ;;
1748         *)
1749             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1750         ;;
1751     esac
1752 fi
1753
1754 check_cc <<EOF || die "Symbol mangling check failed."
1755 int ff_extern;
1756 EOF
1757 sym=$($nm -P -g $TMPO | grep ff_extern)
1758 extern_prefix=${sym%%ff_extern*}
1759
1760 check_asm inline_asm '""'
1761
1762 if enabled x86; then
1763     # check whether EBP is available on x86
1764     # As 'i' is stored on the stack, this program will crash
1765     # if the base pointer is used to access it because the
1766     # base pointer is cleared in the inline assembly code.
1767     check_exec_crash <<EOF && enable ebp_available
1768     volatile int i=0;
1769     __asm__ volatile (
1770         "xorl %%ebp, %%ebp"
1771     ::: "%ebp");
1772     return i;
1773 EOF
1774
1775     # check wether EBX is available on x86
1776     check_asm ebx_available '"":::"%ebx"'
1777
1778     # check whether binutils is new enough to compile SSSE3/MMX2
1779     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1780     enabled mmx2  && check_asm mmx2  '"movss %xmm0, %xmm0"'
1781
1782     check_asm bswap '"bswap %%eax" ::: "%eax"'
1783
1784     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1785     enabled     x86_64        && append YASMFLAGS "-m amd64"
1786     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1787     case "$objformat" in
1788         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1789         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1790         *)                    append YASMFLAGS "-DPREFIX"  ;;
1791     esac
1792     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1793 fi
1794
1795 # check for assembler specific support
1796
1797 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1798 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1799
1800 # check for SIMD availability
1801
1802 # AltiVec flags: The FSF version of GCC differs from the Apple version
1803 if enabled altivec; then
1804     check_cflags -maltivec -mabi=altivec &&
1805         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1806         check_cflags -faltivec
1807
1808     # check if our compiler supports Motorola AltiVec C API
1809     check_cc <<EOF || disable altivec
1810 $inc_altivec_h
1811 int main(void) {
1812     vector signed int v1, v2, v3;
1813     v1 = vec_add(v2,v3);
1814     return 0;
1815 }
1816 EOF
1817
1818     # check if our compiler supports braces for vector declarations
1819     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1820 $inc_altivec_h
1821 int main (void) { (vector int) {1}; return 0; }
1822 EOF
1823 fi
1824
1825 # We have to check if pld is a nop and disable it.
1826 enabled arm     && check_asm pld     '"pld [r0]"'
1827 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1828 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1829 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1830 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1831 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1832 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1833 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1834 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1835
1836 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1837
1838 # ---
1839 # big/little-endian test
1840 check_cc <<EOF || die "endian test failed"
1841 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1842 EOF
1843 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1844
1845 # ---
1846 # check availability of some header files
1847
1848 if check_func dlopen; then
1849     ldl=
1850 elif check_func dlopen -ldl; then
1851     ldl=-ldl
1852 fi
1853
1854 check_func  fork
1855 check_func  gethrtime
1856 check_func  getrusage
1857 check_func  inet_aton $network_extralibs
1858 check_func  memalign
1859 check_func  mkstemp
1860 check_func  posix_memalign
1861 check_func_headers io.h setmode
1862 check_func_headers windows.h GetProcessTimes
1863
1864 check_header conio.h
1865 check_header dlfcn.h
1866 check_header malloc.h
1867 check_header poll.h
1868 check_header sys/mman.h
1869 check_header sys/resource.h
1870 check_header sys/select.h
1871 check_header termios.h
1872 check_header vdpau/vdpau.h
1873 check_header vdpau/vdpau_x11.h
1874 check_header X11/extensions/XvMClib.h
1875
1876 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
1877     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
1878 fi
1879
1880 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
1881 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
1882
1883 # check for some common methods of building with pthread support
1884 # do this before the optional library checks as some of them require pthreads
1885 if enabled pthreads; then
1886     if check_func pthread_create; then
1887         :
1888     elif check_func pthread_create -pthread; then
1889         add_cflags -pthread
1890         add_extralibs -pthread
1891     elif check_func pthread_create -pthreads; then
1892         add_cflags -pthreads
1893         add_extralibs -pthreads
1894     elif check_func pthread_create -lpthreadGC2; then
1895         add_extralibs -lpthreadGC2
1896     elif ! check_lib pthread.h pthread_create -lpthread; then
1897         die "ERROR: can't find pthreads library"
1898     fi
1899 fi
1900
1901 for thread in $THREADS_LIST; do
1902     if enabled $thread; then
1903         test -n "$thread_type" &&
1904             die "ERROR: Only one thread type must be selected." ||
1905             thread_type="$thread"
1906     fi
1907 done
1908
1909 check_lib math.h sin -lm
1910
1911 # test for C99 functions in math.h
1912 for func in llrint lrint lrintf round roundf truncf; do
1913     check_exec <<EOF && enable $func || disable $func
1914 #include <math.h>
1915 int main(void) { return ($func(3.999f) > 0)?0:1; }
1916 EOF
1917 done
1918
1919 # these are off by default, so fail if requested and not available
1920 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
1921 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
1922 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
1923 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
1924                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
1925                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
1926 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
1927 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
1928 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
1929 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
1930 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
1931 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
1932                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
1933 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
1934 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
1935 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
1936 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
1937                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
1938                         die "ERROR: libx264 version must be >= 0.65."; }
1939 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
1940 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
1941
1942 # libdc1394 check
1943 if enabled libdc1394; then
1944     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
1945         enable libdc1394_2; } ||
1946     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
1947         enable libdc1394_1; } ||
1948     die "ERROR: No version of libdc1394 found "
1949 fi
1950
1951
1952 _restrict=
1953 for restrict_keyword in restrict __restrict__ __restrict; do
1954     check_cc <<EOF && _restrict=$restrict_keyword && break
1955 void foo(char * $restrict_keyword p);
1956 EOF
1957 done
1958
1959 test "$vhook" = "default" && vhook="$dlopen"
1960
1961 if test "$target_os" = cygwin -o "$target_os" = mingw32 && enabled_all static vhook ; then
1962     disable vhook
1963     echo
1964     echo "At the moment vhooks don't work on Cygwin or MinGW static builds."
1965     echo "Patches welcome."
1966     echo
1967 fi
1968
1969 if enabled vhook; then
1970     check_ldflags -rdynamic
1971     check_ldflags -export-dynamic
1972 fi
1973
1974 check_foo_config imlib2 imlib2 Imlib2.h imlib_load_font
1975 check_foo_config freetype2 freetype ft2build.h FT_Init_FreeType
1976
1977 ##########################################
1978 # SDL check
1979
1980 disable sdl_too_old
1981 disable sdl
1982 SDL_CONFIG="${cross_prefix}sdl-config"
1983 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
1984     sdl_cflags=`"${SDL_CONFIG}" --cflags`
1985     temp_cflags $sdl_cflags
1986     temp_extralibs `"${SDL_CONFIG}" --libs`
1987     if check_lib2 SDL.h SDL_Init; then
1988         _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
1989         if test "$_sdlversion" -lt 121 ; then
1990             enable sdl_too_old
1991         else
1992             enable sdl
1993             check_cc $sdl_cflags <<EOF && enable sdl_video_size
1994 #include <SDL.h>
1995 int main(int argc, char **argv){
1996     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
1997     int w = vi->current_w;
1998     return 0;
1999 }
2000 EOF
2001         fi
2002     fi
2003     restore_flags
2004 fi
2005
2006 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2007
2008 ##########################################
2009 # Network check
2010
2011 if enabled network; then
2012     check_type "sys/types.h sys/socket.h" socklen_t
2013     # Prefer arpa/inet.h over winsock2
2014     if check_header arpa/inet.h ; then
2015         check_func closesocket
2016     elif check_header winsock2.h ; then
2017         network_extralibs="-lws2_32"
2018         check_type ws2tcpip.h socklen_t
2019         check_func_headers winsock2.h closesocket
2020     fi
2021 fi
2022
2023 ##########################################
2024 # IPv6 check
2025
2026 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2027 #include <sys/types.h>
2028 #include <sys/socket.h>
2029 #include <netinet/in.h>
2030 #include <netdb.h>
2031 int main(void) {
2032     struct sockaddr_storage saddr;
2033     struct ipv6_mreq mreq6;
2034     getaddrinfo(0,0,0,0);
2035     getnameinfo(0,0,0,0,0,0,0);
2036     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2037 }
2038 EOF
2039
2040 check_header linux/videodev.h
2041 check_header linux/videodev2.h
2042 check_header sys/videoio.h
2043
2044 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2045
2046 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2047 { check_header dev/bktr/ioctl_meteor.h &&
2048   check_header dev/bktr/ioctl_bt848.h; } ||
2049 { check_header machine/ioctl_meteor.h &&
2050   check_header machine/ioctl_bt848.h; } ||
2051 { check_header dev/video/meteor/ioctl_meteor.h &&
2052   check_header dev/video/bktr/ioctl_bt848.h; } ||
2053 check_header dev/ic/bt8xx.h
2054
2055 check_header sys/soundcard.h
2056 check_header soundcard.h
2057
2058 check_header alsa/asoundlib.h &&
2059 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2060
2061 # deal with the X11 frame grabber
2062 enabled x11grab                         &&
2063 check_header X11/Xlib.h                 &&
2064 check_header X11/extensions/XShm.h      &&
2065 check_func XOpenDisplay -lX11           &&
2066 check_func XShmCreateImage -lX11 -lXext
2067
2068 enabled debug && add_cflags -g"$debuglevel"
2069
2070 # add some useful compiler flags if supported
2071 check_cflags -Wdeclaration-after-statement
2072 check_cflags -Wall
2073 check_cflags -Wno-switch
2074 check_cflags -Wdisabled-optimization
2075 check_cflags -Wpointer-arith
2076 check_cflags -Wredundant-decls
2077 check_cflags -Wno-pointer-sign
2078 check_cflags -Wcast-qual
2079 check_cflags -Wwrite-strings
2080 check_cflags -Wtype-limits
2081 check_cflags -Wundef
2082 enabled extra_warnings && check_cflags -Winline
2083
2084 # add some linker flags
2085 check_ldflags -Wl,--warn-common
2086 check_ldflags -Wl,--as-needed
2087 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'
2088 check_ldflags -Wl,-Bsymbolic
2089
2090 if enabled small; then
2091     check_cflags -Os            # not all compilers support -Os
2092     optimizations="small"
2093 elif enabled optimizations; then
2094     if $cc -v 2>&1 | grep -q xlc; then
2095         add_cflags  -O5
2096         add_ldflags -O5
2097     else
2098         add_cflags -O3
2099     fi
2100 fi
2101 check_cflags -fno-math-errno
2102 check_cflags -fno-signed-zeros
2103
2104 # add some flags for Intel C Compiler
2105 if $cc --version 2> /dev/null | grep -q Intel; then
2106   # Just warnings, no remarks
2107   check_cflags -w1
2108   # -wd: Disable following warnings
2109   # 144, 167, 556: -Wno-pointer-sign
2110   # 10006: ignoring unknown option -fno-signed-zeros
2111   # 10156: ignoring option '-W'; no argument required
2112   check_cflags -wd144,167,556,10006,10156
2113   # 11030: Warning unknown option --as-needed
2114   # 10156: ignoring option '-export'; no argument required
2115   check_ldflags -wd10156,11030
2116   # Allow to compile with optimizations
2117   check_ldflags -march=$cpu
2118 fi
2119
2120 # PIC flags for shared library objects where they are needed
2121 if enabled shared; then
2122     # LIBOBJFLAGS may have already been set in the OS configuration
2123     if test -z "$LIBOBJFLAGS" ; then
2124         case "${subarch-$arch}" in
2125             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2126         esac
2127     fi
2128 fi
2129
2130 if enabled gprof; then
2131     add_cflags  -p
2132     add_ldflags -p
2133 fi
2134
2135 VHOOKCFLAGS="-fPIC"
2136
2137 # Find out if the .align argument is a power of two or not.
2138 check_asm asmalign_pot '".align 3"'
2139
2140 enabled_any $DECODER_LIST      && enable decoders
2141 enabled_any $ENCODER_LIST      && enable encoders
2142 enabled_any $BSF_LIST          && enable bsfs
2143 enabled_any $DEMUXER_LIST      && enable demuxers
2144 enabled_any $MUXER_LIST        && enable muxers
2145 enabled_any $FILTER_LIST       && enable filters
2146 enabled_any $INDEV_LIST        && enable demuxers
2147 enabled_any $OUTDEV_LIST       && enable muxers
2148 enabled_any $PROTOCOL_LIST     && enable protocols
2149
2150 enabled_any $THREADS_LIST      && enable threads
2151
2152 check_deps $CONFIG_LIST       \
2153            $CONFIG_EXTRA      \
2154            $HAVE_LIST         \
2155            $DECODER_LIST      \
2156            $ENCODER_LIST      \
2157            $PARSER_LIST       \
2158            $BSF_LIST          \
2159            $DEMUXER_LIST      \
2160            $MUXER_LIST        \
2161            $FILTER_LIST       \
2162            $INDEV_LIST        \
2163            $OUTDEV_LIST       \
2164            $PROTOCOL_LIST     \
2165
2166 echo "install prefix            $prefix"
2167 echo "source path               $source_path"
2168 echo "C compiler                $cc"
2169 echo ".align is power-of-two    $asmalign_pot"
2170 echo "ARCH                      $arch ($cpu)"
2171 if test "$build_suffix" != ""; then
2172     echo "build suffix              $build_suffix"
2173 fi
2174 if test "$extra_version" != ""; then
2175     echo "version string suffix     $extra_version"
2176 fi
2177 echo "big-endian                ${bigendian-no}"
2178 if enabled x86; then
2179     echo "yasm                      ${yasm-no}"
2180     echo "MMX enabled               ${mmx-no}"
2181     echo "MMX2 enabled              ${mmx2-no}"
2182     echo "3DNow! enabled            ${amd3dnow-no}"
2183     echo "SSE enabled               ${sse-no}"
2184     echo "SSSE3 enabled             ${ssse3-no}"
2185     echo "CMOV enabled              ${cmov-no}"
2186     echo "CMOV is fast              ${fast_cmov-no}"
2187     echo "EBX available             ${ebx_available-no}"
2188     echo "EBP available             ${ebp_available-no}"
2189 fi
2190 if enabled arm; then
2191     echo "ARMv5TE enabled           ${armv5te-no}"
2192     echo "ARMv6 enabled             ${armv6-no}"
2193     echo "ARMv6T2 enabled           ${armv6t2-no}"
2194     echo "ARM VFP enabled           ${armvfp-no}"
2195     echo "IWMMXT enabled            ${iwmmxt-no}"
2196     echo "NEON enabled              ${neon-no}"
2197 fi
2198 if enabled mips; then
2199     echo "MMI enabled               ${mmi-no}"
2200 fi
2201 if enabled ppc; then
2202     echo "AltiVec enabled           ${altivec-no}"
2203     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2204     echo "dcbzl available           ${dcbzl-no}"
2205     echo "performance report        ${powerpc_perf-no}"
2206 fi
2207 if enabled sparc; then
2208     echo "VIS enabled               ${vis-no}"
2209 fi
2210 echo "gprof enabled             ${gprof-no}"
2211 echo "debug symbols             ${debug-no}"
2212 echo "strip symbols             ${stripping-no}"
2213 echo "optimizations             ${optimizations-no}"
2214 echo "static                    ${static-no}"
2215 echo "shared                    ${shared-no}"
2216 echo "postprocessing support    ${postproc-no}"
2217 echo "software scaler enabled   ${swscale-no}"
2218 echo "new filter support        ${avfilter-no}"
2219 echo "filters using lavformat   ${avfilter_lavf-no}"
2220 echo "video hooking             ${vhook-no}"
2221 if enabled vhook; then
2222     echo "Imlib2 support            ${imlib2-no}"
2223     echo "FreeType support          ${freetype2-no}"
2224 fi
2225 echo "network support           ${network-no}"
2226 if enabled network; then
2227     echo "IPv6 support              ${ipv6-no}"
2228 fi
2229 echo "threading support         ${thread_type-no}"
2230 echo "SDL support               ${sdl-no}"
2231 if enabled sdl_too_old; then
2232     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2233 fi
2234 echo "Sun medialib support      ${mlib-no}"
2235 echo "AVISynth enabled          ${avisynth-no}"
2236 echo "libamr-nb support         ${libamr_nb-no}"
2237 echo "libamr-wb support         ${libamr_wb-no}"
2238 echo "libdc1394 support         ${libdc1394-no}"
2239 echo "libdirac enabled          ${libdirac-no}"
2240 echo "libfaac enabled           ${libfaac-no}"
2241 echo "libfaad enabled           ${libfaad-no}"
2242 echo "libfaad dlopened          ${libfaadbin-no}"
2243 echo "libgsm enabled            ${libgsm-no}"
2244 echo "libmp3lame enabled        ${libmp3lame-no}"
2245 echo "libnut enabled            ${libnut-no}"
2246 echo "libschroedinger enabled   ${libschroedinger-no}"
2247 echo "libspeex enabled          ${libspeex-no}"
2248 echo "libtheora enabled         ${libtheora-no}"
2249 echo "libvorbis enabled         ${libvorbis-no}"
2250 echo "libx264 enabled           ${libx264-no}"
2251 echo "libxvid enabled           ${libxvid-no}"
2252 echo "vdpau enabled             ${vdpau-no}"
2253 echo "zlib enabled              ${zlib-no}"
2254 echo "bzlib enabled             ${bzlib-no}"
2255 echo
2256
2257 for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
2258     echo "Enabled ${type}s:"
2259     eval list=\$$(toupper $type)_LIST
2260     for part in $list; do
2261         enabled $part && echo ${part%_*}
2262     done | sort | pr -3 -t
2263     echo
2264 done
2265
2266 license="LGPL"
2267 if enabled nonfree; then
2268     license="unredistributable"
2269 elif enabled gpl; then
2270     license="GPL"
2271 fi
2272
2273 echo "License: $license"
2274
2275 echo "Creating config.mak and config.h..."
2276
2277 echo "# Automatically generated by configure - do not modify!" > config.mak
2278 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2279 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2280 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2281 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2282 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2283
2284 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2285 echo "prefix=$prefix" >> config.mak
2286 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2287 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2288 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2289 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2290 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2291 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2292 echo "CC=$cc" >> config.mak
2293 echo "YASM=$yasmexe" >> config.mak
2294 echo "AR=$ar" >> config.mak
2295 echo "RANLIB=$ranlib" >> config.mak
2296 echo "LN_S=$ln_s" >> config.mak
2297 enabled stripping &&
2298     echo "STRIP=$strip" >> config.mak ||
2299     echo "STRIP=echo ignoring strip" >> config.mak
2300
2301 echo "OPTFLAGS=$CFLAGS" >> config.mak
2302 echo "VHOOKCFLAGS=$VHOOKCFLAGS" >> config.mak
2303 echo "LDFLAGS=$LDFLAGS" >> config.mak
2304 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2305 echo "SHFLAGS=$SHFLAGS" >> config.mak
2306 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2307 echo "VHOOKSHFLAGS=$VHOOKSHFLAGS" >> config.mak
2308 echo "VHOOKLIBS=$VHOOKLIBS" >> config.mak
2309 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2310 echo "BUILD_STATIC=$static" >> config.mak
2311 echo "BUILDSUF=$build_suffix" >> config.mak
2312 echo "FULLNAME=$FULLNAME" >> config.mak
2313 echo "LIBPREF=$LIBPREF" >> config.mak
2314 echo "LIBSUF=$LIBSUF" >> config.mak
2315 echo "LIBNAME=$LIBNAME" >> config.mak
2316 echo "SLIBPREF=$SLIBPREF" >> config.mak
2317 echo "SLIBSUF=$SLIBSUF" >> config.mak
2318 echo "EXESUF=$EXESUF" >> config.mak
2319 echo "EXTRA_VERSION=$extra_version" >> config.mak
2320 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2321 echo "HOSTCC=$host_cc" >> config.mak
2322 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2323 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2324 echo "HOSTLIBS=$host_libs" >> config.mak
2325 echo "TARGET_EXEC=$target_exec" >> config.mak
2326 echo "TARGET_PATH=$target_path" >> config.mak
2327
2328 if enabled bigendian; then
2329     echo "WORDS_BIGENDIAN=yes" >> config.mak
2330     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2331 fi
2332
2333 if enabled sdl; then
2334     echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
2335     echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> config.mak
2336 fi
2337 if enabled texi2html; then
2338     echo "BUILD_DOC=yes" >> config.mak
2339 fi
2340
2341 get_version(){
2342     name=$1
2343     file=$source_path/$2
2344     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2345     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2346     lcname=$(tolower $name)
2347     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2348     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2349 }
2350
2351 get_version LIBSWSCALE  libswscale/swscale.h
2352 get_version LIBPOSTPROC libpostproc/postprocess.h
2353 get_version LIBAVCODEC  libavcodec/avcodec.h
2354 get_version LIBAVDEVICE libavdevice/avdevice.h
2355 get_version LIBAVFORMAT libavformat/avformat.h
2356 get_version LIBAVUTIL   libavutil/avutil.h
2357 get_version LIBAVFILTER libavfilter/avfilter.h
2358
2359 if enabled shared; then
2360     echo "BUILD_SHARED=yes" >> config.mak
2361     echo "PIC=-fPIC -DPIC" >> config.mak
2362     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2363     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2364     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2365     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2366     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2367     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2368     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2369     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2370 fi
2371 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2372 echo "EXTRALIBS=$extralibs" >> config.mak
2373
2374 echo "ARCH=$arch" >> config.mak
2375
2376 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2377 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2378 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2379                                       $CONFIG_EXTRA      \
2380                                       $DECODER_LIST      \
2381                                       $ENCODER_LIST      \
2382                                       $PARSER_LIST       \
2383                                       $BSF_LIST          \
2384                                       $DEMUXER_LIST      \
2385                                       $MUXER_LIST        \
2386                                       $FILTER_LIST       \
2387                                       $PROTOCOL_LIST     \
2388                                       $INDEV_LIST        \
2389                                       $OUTDEV_LIST       \
2390
2391 echo "#define restrict $_restrict" >> $TMPH
2392
2393 if enabled small; then
2394     echo "#define av_always_inline"  >> $TMPH
2395 fi
2396
2397 echo "SRC_PATH=\"$source_path\"" >> config.mak
2398 echo "SRC_PATH_BARE=$source_path" >> config.mak
2399 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2400
2401 # Apparently it's not possible to portably echo a backslash.
2402 enabled asmalign_pot &&
2403     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2404     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2405
2406 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2407
2408 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2409
2410 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2411 cmp -s $TMPH config.h &&
2412     echo "config.h is unchanged" ||
2413     mv -f $TMPH config.h
2414
2415 rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
2416
2417 # build tree in object directory if source path is different from current one
2418 if enabled source_path_used; then
2419     DIRS="\
2420         doc               \
2421         libavcodec        \
2422         libavcodec/alpha  \
2423         libavcodec/arm    \
2424         libavcodec/bfin   \
2425         libavcodec/mlib   \
2426         libavcodec/ppc    \
2427         libavcodec/sh4    \
2428         libavcodec/sparc  \
2429         libavcodec/x86    \
2430         libavdevice       \
2431         libavfilter       \
2432         libavformat       \
2433         libavutil         \
2434         libpostproc       \
2435         libswscale        \
2436         tests             \
2437         tools             \
2438         vhook             \
2439         "
2440     FILES="\
2441         Makefile             \
2442         common.mak           \
2443         subdir.mak           \
2444         doc/texi2pod.pl      \
2445         libavcodec/Makefile  \
2446         libavdevice/Makefile \
2447         libavfilter/Makefile \
2448         libavformat/Makefile \
2449         libavutil/Makefile   \
2450         libpostproc/Makefile \
2451         libswscale/Makefile  \
2452         "
2453     for dir in $DIRS ; do
2454         mkdir -p $dir
2455     done
2456     for f in $FILES ; do
2457         $ln_s "$source_path/$f" $f
2458     done
2459 fi
2460
2461
2462 # build pkg-config files
2463
2464 pkgconfig_generate(){
2465 name=$1
2466 shortname=${name#lib}${build_suffix}
2467 comment=$2
2468 version=$3
2469 libs=$4
2470 requires=$5
2471 cat <<EOF > $name/$name.pc
2472 prefix=$prefix
2473 exec_prefix=\${prefix}
2474 libdir=$libdir
2475 includedir=$incdir
2476
2477 Name: $name
2478 Description: $comment
2479 Version: $version
2480 Requires: $(disabled shared && echo $requires)
2481 Requires.private: $(enabled shared && echo $requires)
2482 Conflicts:
2483 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2484 Libs.private: $(enabled shared && echo $libs)
2485 Cflags: -I\${includedir}
2486 EOF
2487 cat <<EOF > $name/$name-uninstalled.pc
2488 prefix=
2489 exec_prefix=
2490 libdir=\${pcfiledir}
2491 includedir=${source_path}
2492
2493 Name: $name
2494 Description: $comment
2495 Version: $version
2496 Requires: $requires
2497 Conflicts:
2498 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2499 Cflags: -I\${includedir}
2500 EOF
2501 }
2502
2503 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2504 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2505 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2506 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2507 enabled avfilter &&
2508     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2509 enabled postproc &&
2510     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2511 if enabled swscale; then
2512     pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
2513 else
2514     pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavcodec = $LIBAVCODEC_VERSION"
2515     apply libswscale/libswscale.pc sed s/^Libs:.*$/Libs:/
2516 fi