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 "  --disable-network        disable network support [no]"
  92   echo "  --disable-ipv6           disable IPv6 support [no]"
  93   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  94   echo "  --enable-gray            enable full grayscale support (slower color)"
  95   echo "  --disable-fastdiv        disable table-based division"
  96   echo "  --enable-small           optimize for size instead of speed"
  97   echo "  --disable-aandct         disable AAN DCT code"
  98   echo "  --disable-fft            disable FFT code"
  99   echo "  --disable-golomb         disable Golomb code"
 100   echo "  --disable-mdct           disable MDCT code"
 101   echo "  --disable-rdft           disable RDFT code"
 102   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 103   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 104   echo "  --enable-beos-netserver  enable BeOS netserver"
 105   echo "  --disable-encoder=NAME   disable encoder NAME"
 106   echo "  --enable-encoder=NAME    enable encoder NAME"
 107   echo "  --disable-encoders       disable all encoders"
 108   echo "  --disable-decoder=NAME   disable decoder NAME"
 109   echo "  --enable-decoder=NAME    enable decoder NAME"
 110   echo "  --disable-decoders       disable all decoders"
 111   echo "  --disable-muxer=NAME     disable muxer NAME"
 112   echo "  --enable-muxer=NAME      enable muxer NAME"
 113   echo "  --disable-muxers         disable all muxers"
 114   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 115   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 116   echo "  --disable-demuxers       disable all demuxers"
 117   echo "  --enable-parser=NAME     enable parser NAME"
 118   echo "  --disable-parser=NAME    disable parser NAME"
 119   echo "  --disable-parsers        disable all parsers"
 120   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 121   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 122   echo "  --disable-bsfs           disable all bitstream filters"
 123   echo "  --enable-protocol=NAME   enable protocol NAME"
 124   echo "  --disable-protocol=NAME  disable protocol NAME"
 125   echo "  --disable-protocols      disable all protocols"
 126   echo "  --disable-indevs         disable input devices"
 127   echo "  --disable-outdevs        disable output devices"
 128   echo "  --disable-devices        disable all devices"
 129   echo "  --enable-filter=NAME     enable filter NAME"
 130   echo "  --disable-filter=NAME    disable filter NAME"
 131   echo "  --disable-filters        disable all filters"
 132   echo "  --list-decoders          show all available decoders"
 133   echo "  --list-encoders          show all available encoders"
 134   echo "  --list-muxers            show all available muxers"
 135   echo "  --list-demuxers          show all available demuxers"
 136   echo "  --list-parsers           show all available parsers"
 137   echo "  --list-protocols         show all available protocols"
 138   echo "  --list-bsfs              show all available bitstream filters"
 139   echo "  --list-indevs            show all available input devices"
 140   echo "  --list-outdevs           show all available output devices"
 141   echo "  --list-filters           show all available filters"
 142   echo
 143   echo "External library support:"
 144   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 145   echo "  --enable-bzlib           enable bzlib [autodetect]"
 146   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
 147   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
 148   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 149   echo "                           and libraw1394 [no]"
 150   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 151   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 152   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 153   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 154   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 155   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 156   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 157   echo "                           native (de)muxer exists [no]"
 158   echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
 159   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 160   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 161   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 162   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 163   echo "                           native implementation exists [no]"
 164   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 165   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 166   echo "                           native MPEG-4/Xvid encoder exists [no]"
 167   echo "  --enable-mlib            enable Sun medialib [no]"
 168   echo "  --enable-zlib            enable zlib [autodetect]"
 169   echo ""
 170   echo "Advanced options (experts only):"
 171   echo "  --source-path=PATH       path to source code [$source_path]"
 172   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 173   echo "  --enable-cross-compile   assume a cross-compiler is used"
 174   echo "  --sysroot=PATH           root of cross-build tree"
 175   echo "  --sysinclude=PATH        location of cross-build system headers"
 176   echo "  --target-os=OS           compiler targets OS [$target_os]"
 177   echo "  --target-exec=CMD        command to run executables on target"
 178   echo "  --target-path=DIR        path to view of build directory on target"
 179   echo "  --nm=NM                  use nm tool"
 180   echo "  --as=AS                  use assembler AS [$as_default]"
 181   echo "  --cc=CC                  use C compiler CC [$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 $TMPC
 525 }
 526
 527 check_as(){
 528     log check_as "$@"
 529     cat > $TMPC
 530     log_file $TMPC
 531     check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
 532 }
 533
 534 check_asm(){
 535     log check_asm "$@"
 536     name="$1"
 537     asm="$2"
 538     shift 2
 539     check_as "$@" <<EOF && enable $name || disable $name
 540 void foo(void){ __asm__ volatile($asm); }
 541 EOF
 542 }
 543
 544 check_yasm(){
 545     log check_yasm "$@"
 546     echo "$1" > $TMPS
 547     log_file $TMPS
 548     shift 1
 549     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 550 }
 551
 552 check_ld(){
 553     log check_ld "$@"
 554     check_cc || return
 555     flags=''
 556     libs=''
 557     for f; do
 558         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 559     done
 560     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 561 }
 562
 563 check_cflags(){
 564     log check_cflags "$@"
 565     check_cc "$@" <<EOF && add_cflags "$@"
 566 int x;
 567 EOF
 568 }
 569
 570 check_ldflags(){
 571     log check_ldflags "$@"
 572     check_ld "$@" <<EOF && add_ldflags "$@"
 573 int main(void){ return 0; }
 574 EOF
 575 }
 576
 577 check_header(){
 578     log check_header "$@"
 579     header=$1
 580     shift
 581     disable_safe $header
 582     check_cpp "$@" <<EOF && enable_safe $header
 583 #include <$header>
 584 int x;
 585 EOF
 586 }
 587
 588 check_func(){
 589     log check_func "$@"
 590     func=$1
 591     shift
 592     disable $func
 593     check_ld "$@" <<EOF && enable $func
 594 extern int $func();
 595 int main(void){ $func(); }
 596 EOF
 597 }
 598
 599 check_func_headers(){
 600     log check_func_headers "$@"
 601     headers=$1
 602     func=$2
 603     shift 2
 604     disable $func
 605     incs=""
 606     for hdr in $headers; do
 607         incs="$incs
 608 #include <$hdr>"
 609     done
 610     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 611 $incs
 612 int main(int argc, char **argv){
 613     (void) $func;
 614     return 0;
 615 }
 616 EOF
 617 }
 618
 619 check_cpp_condition(){
 620     log check_cpp_condition "$@"
 621     header=$1
 622     condition=$2
 623     check_cpp <<EOF
 624 #include <$header>
 625 #if !($condition)
 626 #error "unsatisfied condition: $condition"
 627 #endif
 628 EOF
 629 }
 630
 631 check_lib(){
 632     log check_lib "$@"
 633     header="$1"
 634     func="$2"
 635     shift 2
 636     temp_extralibs "$@"
 637     check_header $header && check_func $func && add_extralibs "$@"
 638     err=$?
 639     restore_flags
 640     return $err
 641 }
 642
 643 check_lib2(){
 644     log check_lib2 "$@"
 645     headers="$1"
 646     func="$2"
 647     shift 2
 648     temp_extralibs "$@"
 649     check_func_headers "$headers" $func && add_extralibs "$@"
 650     err=$?
 651     restore_flags
 652     return $err
 653 }
 654
 655 check_exec(){
 656     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 657 }
 658
 659 check_exec_crash(){
 660     code=$(cat)
 661
 662     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 663     # are safe but may not be available everywhere.  Thus we use
 664     # raise(SIGTERM) instead.  The check is run in a subshell so we
 665     # can redirect the "Terminated" message from the shell.  SIGBUS
 666     # is not defined by standard C so it is used conditionally.
 667
 668     (check_exec "$@") >> $logfile 2>&1 <<EOF
 669 #include <signal.h>
 670 static void sighandler(int sig){
 671     raise(SIGTERM);
 672 }
 673 int main(void){
 674     signal(SIGILL, sighandler);
 675     signal(SIGFPE, sighandler);
 676     signal(SIGSEGV, sighandler);
 677 #ifdef SIGBUS
 678     signal(SIGBUS, sighandler);
 679 #endif
 680     { $code }
 681 }
 682 EOF
 683 }
 684
 685 check_type(){
 686     log check_type "$@"
 687     headers=$1
 688     type=$2
 689     shift 2
 690     disable $type
 691     incs=""
 692     for hdr in $headers; do
 693         incs="$incs
 694 #include <$hdr>"
 695     done
 696     check_cc "$@" <<EOF && enable $type
 697 $incs
 698 $type v;
 699 EOF
 700 }
 701
 702 require(){
 703     name="$1"
 704     header="$2"
 705     func="$3"
 706     shift 3
 707     check_lib $header $func "$@" || die "ERROR: $name not found"
 708 }
 709
 710 require2(){
 711     name="$1"
 712     headers="$2"
 713     func="$3"
 714     shift 3
 715     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 716 }
 717
 718 check_foo_config(){
 719     cfg=$1
 720     pkg=$2
 721     header=$3
 722     func=$4
 723     shift 4
 724     disable $cfg
 725     check_cmd ${pkg}-config --version
 726     err=$?
 727     if test "$err" = 0; then
 728         temp_cflags $(${pkg}-config --cflags)
 729         temp_extralibs $(${pkg}-config --libs)
 730         check_lib "$@" $header $func && enable $cfg
 731     fi
 732     return $err
 733 }
 734
 735 apply(){
 736     file=$1
 737     shift
 738     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 739 }
 740
 741 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 742 # system-dependent things.
 743
 744 COMPONENT_LIST="
 745     bsfs
 746     decoders
 747     demuxers
 748     encoders
 749     filters
 750     indevs
 751     muxers
 752     outdevs
 753     parsers
 754     protocols
 755 "
 756
 757 CONFIG_LIST="
 758     $COMPONENT_LIST
 759     aandct
 760     avfilter
 761     avfilter_lavf
 762     avisynth
 763     beos_netserver
 764     bzlib
 765     fastdiv
 766     ffmpeg
 767     ffplay
 768     ffserver
 769     fft
 770     golomb
 771     gpl
 772     gprof
 773     gray
 774     hardcoded_tables
 775     ipv6
 776     libamr_nb
 777     libamr_wb
 778     libdc1394
 779     libdirac
 780     libfaac
 781     libfaad
 782     libfaadbin
 783     libgsm
 784     libmp3lame
 785     libnut
 786     libopenjpeg
 787     libschroedinger
 788     libspeex
 789     libtheora
 790     libvorbis
 791     libx264
 792     libxvid
 793     mdct
 794     memalign_hack
 795     mlib
 796     mpegaudio_hp
 797     network
 798     nonfree
 799     postproc
 800     powerpc_perf
 801     rdft
 802     shared
 803     small
 804     static
 805     x11grab
 806     zlib
 807 "
 808
 809 THREADS_LIST='
 810     beosthreads
 811     os2threads
 812     pthreads
 813     w32threads
 814 '
 815
 816 ARCH_LIST='
 817     alpha
 818     arm
 819     bfin
 820     ia64
 821     m68k
 822     mips
 823     parisc
 824     ppc
 825     s390
 826     sh4
 827     sparc
 828     sparc64
 829     x86
 830     x86_32
 831     x86_64
 832 '
 833
 834 ARCH_EXT_LIST='
 835     altivec
 836     amd3dnow
 837     amd3dnowext
 838     armv5te
 839     armv6
 840     armv6t2
 841     armvfp
 842     iwmmxt
 843     mmi
 844     mmx
 845     mmx2
 846     neon
 847     ppc4xx
 848     sse
 849     ssse3
 850     vis
 851 '
 852
 853 HAVE_LIST="
 854     $ARCH_EXT_LIST
 855     $THREADS_LIST
 856     alsa_asoundlib_h
 857     altivec_h
 858     arpa_inet_h
 859     bswap
 860     closesocket
 861     cmov
 862     conio_h
 863     dcbzl
 864     dev_bktr_ioctl_bt848_h
 865     dev_bktr_ioctl_meteor_h
 866     dev_ic_bt8xx_h
 867     dev_video_meteor_ioctl_meteor_h
 868     dev_video_bktr_ioctl_bt848_h
 869     dlfcn_h
 870     dlopen
 871     dos_paths
 872     ebp_available
 873     ebx_available
 874     fast_64bit
 875     fast_cmov
 876     fast_unaligned
 877     fork
 878     gethrtime
 879     GetProcessTimes
 880     getrusage
 881     inet_aton
 882     inline_asm
 883     libdc1394_1
 884     libdc1394_2
 885     llrint
 886     lrint
 887     lrintf
 888     machine_ioctl_bt848_h
 889     machine_ioctl_meteor_h
 890     malloc_h
 891     memalign
 892     mkstemp
 893     pld
 894     posix_memalign
 895     ppc64
 896     round
 897     roundf
 898     sdl
 899     sdl_video_size
 900     setmode
 901     socklen_t
 902     soundcard_h
 903     poll_h
 904     sys_mman_h
 905     sys_resource_h
 906     sys_select_h
 907     sys_soundcard_h
 908     sys_videoio_h
 909     ten_operands
 910     termios_h
 911     threads
 912     truncf
 913     winsock2_h
 914     yasm
 915 "
 916
 917 # options emitted with CONFIG_ prefix but not available on command line
 918 CONFIG_EXTRA="
 919 "
 920
 921 CMDLINE_SELECT="
 922     $ARCH_EXT_LIST
 923     $CONFIG_LIST
 924     $THREADS_LIST
 925     cross_compile
 926     debug
 927     extra_warnings
 928     logging
 929     optimizations
 930     stripping
 931     yasm
 932 "
 933
 934 PATHS_LIST='
 935     bindir
 936     datadir
 937     incdir
 938     libdir
 939     mandir
 940     prefix
 941     shlibdir
 942 '
 943
 944 CMDLINE_SET="
 945     $PATHS_LIST
 946     arch
 947     as
 948     build_suffix
 949     cc
 950     cpu
 951     cross_prefix
 952     extra_version
 953     host_cc
 954     host_cflags
 955     host_ldflags
 956     host_libs
 957     host_os
 958     logfile
 959     nm
 960     source_path
 961     sysinclude
 962     sysroot
 963     target_exec
 964     target_os
 965     target_path
 966 "
 967
 968 # code dependency declarations
 969
 970 # architecture extensions
 971 altivec_deps="ppc"
 972 amd3dnow_deps="mmx"
 973 amd3dnowext_deps="amd3dnow"
 974 armv5te_deps="arm"
 975 armv6_deps="arm"
 976 armv6t2_deps="arm"
 977 armvfp_deps="arm"
 978 iwmmxt_deps="arm"
 979 mmi_deps="mips"
 980 mmx_deps="x86"
 981 mmx2_deps="mmx"
 982 neon_deps="arm"
 983 ppc4xx_deps="ppc"
 984 sse_deps="mmx"
 985 ssse3_deps="sse"
 986 vis_deps="sparc"
 987
 988 # decoders / encoders
 989 aac_decoder_select="fft mdct"
 990 ac3_decoder_deps="gpl"
 991 ac3_decoder_select="fft mdct"
 992 atrac3_decoder_select="fft mdct"
 993 cavs_decoder_select="golomb"
 994 cook_decoder_select="fft mdct"
 995 cscd_decoder_suggest="zlib"
 996 dca_decoder_select="fft mdct"
 997 dnxhd_encoder_select="aandct"
 998 dxa_decoder_select="zlib"
 999 eac3_decoder_deps="gpl"
1000 eac3_decoder_select="fft mdct"
1001 eatgq_decoder_select="aandct"
1002 eatqi_decoder_select="aandct"
1003 ffv1_decoder_select="golomb"
1004 flac_decoder_select="golomb"
1005 flac_encoder_select="golomb"
1006 flashsv_decoder_select="zlib"
1007 flashsv_encoder_select="zlib"
1008 flv_encoder_select="aandct"
1009 h261_encoder_select="aandct"
1010 h263_encoder_select="aandct"
1011 h263p_encoder_select="aandct"
1012 h264_decoder_select="golomb"
1013 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1014 imc_decoder_select="fft mdct"
1015 jpegls_decoder_select="golomb"
1016 jpegls_encoder_select="golomb"
1017 ljpeg_encoder_select="aandct"
1018 loco_decoder_select="golomb"
1019 mjpeg_encoder_select="aandct"
1020 mpeg1video_encoder_select="aandct"
1021 mpeg2video_encoder_select="aandct"
1022 mpeg4_encoder_select="aandct"
1023 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1024 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1025 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1026 msmpeg4v1_encoder_select="aandct"
1027 msmpeg4v2_encoder_select="aandct"
1028 msmpeg4v3_encoder_select="aandct"
1029 nellymoser_decoder_select="fft mdct"
1030 nellymoser_encoder_select="fft mdct"
1031 png_decoder_select="zlib"
1032 png_encoder_select="zlib"
1033 qdm2_decoder_select="fft mdct rdft"
1034 rv10_encoder_select="aandct"
1035 rv20_encoder_select="aandct"
1036 rv30_decoder_select="golomb"
1037 rv40_decoder_select="golomb"
1038 shorten_decoder_select="golomb"
1039 sonic_decoder_select="golomb"
1040 sonic_encoder_select="golomb"
1041 sonic_ls_encoder_select="golomb"
1042 svq3_decoder_select="golomb"
1043 svq3_decoder_suggest="zlib"
1044 tiff_decoder_suggest="zlib"
1045 tiff_encoder_suggest="zlib"
1046 tscc_decoder_select="zlib"
1047 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1048 vorbis_decoder_select="fft mdct"
1049 vorbis_encoder_select="fft mdct"
1050 wmav1_decoder_select="fft mdct"
1051 wmav1_encoder_select="fft mdct"
1052 wmav2_decoder_select="fft mdct"
1053 wmav2_encoder_select="fft mdct"
1054 wmv1_encoder_select="aandct"
1055 wmv2_encoder_select="aandct"
1056 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1057 zlib_decoder_select="zlib"
1058 zlib_encoder_select="zlib"
1059 zmbv_decoder_select="zlib"
1060 zmbv_encoder_select="zlib"
1061
1062 # external libraries
1063 libamr_nb_decoder_deps="libamr_nb"
1064 libamr_nb_encoder_deps="libamr_nb"
1065 libamr_wb_decoder_deps="libamr_wb"
1066 libamr_wb_encoder_deps="libamr_wb"
1067 libdirac_decoder_deps="libdirac !libschroedinger"
1068 libdirac_encoder_deps="libdirac"
1069 libfaac_encoder_deps="libfaac"
1070 libfaad_decoder_deps="libfaad"
1071 libfaadbin_decoder_extralibs='$ldl'
1072 libgsm_decoder_deps="libgsm"
1073 libgsm_encoder_deps="libgsm"
1074 libgsm_ms_decoder_deps="libgsm"
1075 libgsm_ms_encoder_deps="libgsm"
1076 libmp3lame_encoder_deps="libmp3lame"
1077 libopenjpeg_decoder_deps="libopenjpeg"
1078 libschroedinger_decoder_deps="libschroedinger"
1079 libschroedinger_encoder_deps="libschroedinger"
1080 libspeex_decoder_deps="libspeex"
1081 libtheora_encoder_deps="libtheora"
1082 libvorbis_encoder_deps="libvorbis"
1083 libx264_encoder_deps="libx264"
1084 libxvid_encoder_deps="libxvid"
1085
1086 # demuxers / muxers
1087 ac3_demuxer_deps="ac3_parser"
1088 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1089 alsa_demuxer_extralibs="-lasound"
1090 alsa_muxer_deps="alsa_asoundlib_h"
1091 alsa_muxer_extralibs="-lasound"
1092 audio_beos_demuxer_deps="audio_beos"
1093 audio_beos_demuxer_extralibs="-lmedia -lbe"
1094 audio_beos_muxer_deps="audio_beos"
1095 audio_beos_muxer_extralibs="-lmedia -lbe"
1096 avisynth_demuxer_deps="avisynth"
1097 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1098 dirac_demuxer_deps="dirac_parser"
1099 dv1394_demuxer_deps="dv1394 dv_demuxer"
1100 libdc1394_demuxer_deps="libdc1394"
1101 libnut_demuxer_deps="libnut"
1102 libnut_muxer_deps="libnut"
1103 matroska_demuxer_suggest="zlib bzlib"
1104 mov_demuxer_suggest="zlib"
1105 mp3_demuxer_deps="mpegaudio_parser"
1106 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1107 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1108 redir_demuxer_deps="network"
1109 rtp_muxer_deps="network rtp_protocol"
1110 rtsp_demuxer_deps="sdp_demuxer"
1111 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1112 v4l_demuxer_deps="linux_videodev_h"
1113 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1114 vfwcap_demuxer_deps="capCreateCaptureWindow"
1115 vfwcap_demuxer_extralibs="-lvfw32"
1116 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1117 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1118
1119 # protocols
1120 gopher_protocol_deps="network"
1121 http_protocol_deps="network"
1122 rtp_protocol_deps="udp_protocol"
1123 tcp_protocol_deps="network"
1124 udp_protocol_deps="network"
1125
1126 # filters
1127 movie_filter_deps="avfilter_lavf"
1128
1129 # programs
1130 ffplay_deps="sdl"
1131 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1132 ffserver_extralibs='$ldl'
1133
1134
1135 # default parameters
1136
1137 logfile="config.err"
1138
1139 # installation paths
1140 prefix_default="/usr/local"
1141 bindir_default='${prefix}/bin'
1142 datadir_default='${prefix}/share/ffmpeg'
1143 incdir_default='${prefix}/include'
1144 libdir_default='${prefix}/lib'
1145 mandir_default='${prefix}/share/man'
1146 shlibdir_default="$libdir_default"
1147
1148 # toolchain
1149 ar="ar"
1150 cc_default="gcc"
1151 host_cc_default="gcc"
1152 ln_s="ln -sf"
1153 nm_default="nm"
1154 objformat="elf"
1155 ranlib="ranlib"
1156 strip="strip"
1157 yasmexe="yasm"
1158
1159 # machine
1160 arch=$(uname -m)
1161 cpu="generic"
1162
1163 # OS
1164 target_os=$(tolower $(uname -s))
1165 host_os=$target_os
1166
1167 # configurable options
1168 enable debug
1169 enable fastdiv
1170 enable ffmpeg
1171 enable ffplay
1172 enable ffserver
1173 enable ipv6
1174 enable mpegaudio_hp
1175 enable network
1176 enable optimizations
1177 enable protocols
1178 enable static
1179 enable stripping
1180
1181 # build settings
1182 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1183 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1184 FFSERVERLDFLAGS=-Wl,-E
1185 LIBPREF="lib"
1186 LIBSUF=".a"
1187 FULLNAME='$(NAME)$(BUILDSUF)'
1188 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1189 SLIBPREF="lib"
1190 SLIBSUF=".so"
1191 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1192 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1193 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1194 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1195
1196 host_cflags='-O3 -g -Wall'
1197 host_libs='-lm'
1198
1199 target_path='.'
1200
1201 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1202 # full relative path for objects in subdirectories for non-recursive Make.
1203 DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1204
1205 # find source path
1206 source_path="$(dirname "$0")"
1207 enable source_path_used
1208 if test -z "$source_path" -o "$source_path" = "." ; then
1209     source_path="$(pwd)"
1210     disable source_path_used
1211 else
1212     source_path="$(cd "$source_path"; pwd)"
1213     echo "$source_path" | grep -q '[[:blank:]]' &&
1214         die "Out of tree builds are impossible with whitespace in source path."
1215     test -e "$source_path/config.h" &&
1216         die "Out of tree builds are impossible with config.h in source dir."
1217 fi
1218
1219 FFMPEG_CONFIGURATION="$@"
1220
1221 find_things(){
1222     thing=$1
1223     pattern=$2
1224     file=$source_path/$3
1225     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1226 }
1227
1228 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1229 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1230 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1231 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1232 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1233 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1234 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1235 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1236 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1237 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1238
1239 enable $ARCH_EXT_LIST \
1240        $DECODER_LIST \
1241        $ENCODER_LIST \
1242        $PARSER_LIST \
1243        $BSF_LIST \
1244        $DEMUXER_LIST \
1245        $MUXER_LIST \
1246        $FILTER_LIST \
1247        $PROTOCOL_LIST \
1248        $INDEV_LIST \
1249        $OUTDEV_LIST \
1250
1251 die_unknown(){
1252     echo "Unknown option \"$1\"."
1253     echo "See $0 --help for available options."
1254     exit 1
1255 }
1256
1257 show_list() {
1258     suffix=_$1
1259     shift
1260     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1261     exit 0
1262 }
1263
1264 for opt do
1265     optval="${opt#*=}"
1266     case "$opt" in
1267     --extra-cflags=*) add_cflags $optval
1268     ;;
1269     --extra-ldflags=*) add_ldflags $optval
1270     ;;
1271     --extra-libs=*) add_extralibs $optval
1272     ;;
1273     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1274     ;;
1275     --enable-debug=*) debuglevel="$optval"
1276     ;;
1277     --enable-*=*|--disable-*=*)
1278     eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1279     case "$thing" in
1280         encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1281         *) die_unknown "$opt" ;;
1282     esac
1283     ;;
1284     --enable-?*|--disable-?*)
1285     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1286     if is_in $option $COMPONENT_LIST; then
1287         eval $action \$$(toupper ${option%s})_LIST
1288     elif is_in $option $CMDLINE_SELECT; then
1289         $action $option
1290     else
1291         die_unknown $opt
1292     fi
1293     ;;
1294     --list-*)
1295         NAME="${opt#--list-}"
1296         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1297         NAME=${NAME%s}
1298         eval show_list $NAME \$$(toupper $NAME)_LIST
1299     ;;
1300     --help|-h) show_help
1301     ;;
1302     *)
1303     optname="${opt%%=*}"
1304     optname="${optname#--}"
1305     optname=$(echo "$optname" | sed 's/-/_/g')
1306     is_in $optname $CMDLINE_SET || die_unknown $opt
1307     eval $optname='$optval'
1308     ;;
1309     esac
1310 done
1311
1312 disabled logging && logfile=/dev/null
1313
1314 echo "# $0 $@" > $logfile
1315 set >> $logfile
1316
1317 test -n "$cross_prefix" && enable cross_compile
1318
1319 ar="${cross_prefix}${ar}"
1320 cc_default="${cross_prefix}${cc_default}"
1321 nm_default="${cross_prefix}${nm_default}"
1322 ranlib="${cross_prefix}${ranlib}"
1323 strip="${cross_prefix}${strip}"
1324
1325 sysinclude_default="${sysroot}/usr/include"
1326
1327 set_default cc nm sysinclude
1328 as_default=$cc
1329 enabled cross_compile || host_cc_default=$cc
1330 set_default host_cc
1331
1332 exesuf() {
1333     case $1 in
1334         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1335     esac
1336 }
1337
1338 EXESUF=$(exesuf $target_os)
1339 HOSTEXESUF=$(exesuf $host_os)
1340
1341 # set temporary file name
1342 : ${TMPDIR:=$TEMPDIR}
1343 : ${TMPDIR:=$TMP}
1344 : ${TMPDIR:=/tmp}
1345
1346 if ! check_cmd type mktemp; then
1347     # simple replacement for missing mktemp
1348     # NOT SAFE FOR GENERAL USE
1349     mktemp(){
1350         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1351     }
1352 fi
1353
1354 tmpfile(){
1355     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1356         (set -C; exec > $tmp) 2>/dev/null ||
1357         die "Unable to create temoporary file in $TMPDIR."
1358     append TMPFILES $tmp
1359     eval $1=$tmp
1360 }
1361
1362 trap 'rm -f -- $TMPFILES' EXIT
1363 trap exit HUP INT TERM
1364
1365 tmpfile TMPC  .c
1366 tmpfile TMPE  $EXESUF
1367 tmpfile TMPH  .h
1368 tmpfile TMPO  .o
1369 tmpfile TMPS  .S
1370 tmpfile TMPSH .sh
1371
1372 unset -f mktemp
1373
1374 # make sure we can execute files in $TMPDIR
1375 cat > $TMPSH 2>> $logfile <<EOF
1376 #! /bin/sh
1377 EOF
1378 chmod +x $TMPSH >> $logfile 2>&1
1379 if ! $TMPSH >> $logfile 2>&1; then
1380     cat <<EOF
1381 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1382 variable to another directory and make sure that it is not mounted noexec.
1383 EOF
1384     die "Sanity test failed."
1385 fi
1386
1387 if   $cc --version 2>/dev/null | grep -qi gcc; then
1388     cc_type=gcc
1389 elif $cc --version 2>/dev/null | grep -q Intel; then
1390     cc_type=icc
1391 elif $cc -v 2>&1 | grep -q xlc; then
1392     cc_type=xlc
1393 elif $cc -V 2>/dev/null | grep -q Compaq; then
1394     cc_type=ccc
1395     DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1396     debuglevel=3
1397     add_ldflags -Wl,-z,now # calls to libots crash without this
1398 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1399     test -d "$sysroot" || die "No valid sysroot specified."
1400     cc_type=armcc
1401     armcc_conf="$PWD/armcc.conf"
1402     $cc --arm_linux_configure                 \
1403         --arm_linux_config_file="$armcc_conf" \
1404         --configure_sysroot="$sysroot"        \
1405         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1406         die "Error creating armcc configuration file."
1407     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1408     as_default="${cross_prefix}gcc"
1409 fi
1410
1411 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1412
1413 set_default as
1414
1415 if test -n "$sysroot"; then
1416     case "$cc_type" in
1417         gcc)
1418             add_cflags  --sysroot="$sysroot"
1419             add_ldflags --sysroot="$sysroot"
1420         ;;
1421     esac
1422 fi
1423
1424 # compiler sanity check
1425 check_exec <<EOF
1426 int main(void){ return 0; }
1427 EOF
1428 if test "$?" != 0; then
1429     echo "$cc is unable to create an executable file."
1430     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1431         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1432         echo "Only do this if you know what cross compiling means."
1433     fi
1434     die "C compiler test failed."
1435 fi
1436
1437 check_cflags -std=c99
1438 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1439 #include <stdlib.h>
1440 EOF
1441 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1442 #include <stdlib.h>
1443 EOF
1444
1445 case "$arch" in
1446     alpha)
1447         arch="alpha"
1448         enable fast_64bit
1449         check_cflags -mieee
1450     ;;
1451     arm|armv[4567]*l)
1452         arch="arm"
1453     ;;
1454     avr32)
1455     ;;
1456     bfin)
1457         arch="bfin"
1458     ;;
1459     ia64)
1460         arch="ia64"
1461         enable fast_64bit
1462     ;;
1463     m68k)
1464         arch="m68k"
1465     ;;
1466     mips|mipsel|IP*)
1467         arch="mips"
1468     ;;
1469     mips64)
1470         arch="mips"
1471         enable fast_64bit
1472     ;;
1473     parisc|hppa)
1474         arch="parisc"
1475     ;;
1476     parisc64|hppa64)
1477         arch="parisc"
1478         enable fast_64bit
1479     ;;
1480     "Power Macintosh"|ppc|powerpc)
1481         arch="ppc"
1482         enable fast_unaligned
1483     ;;
1484     ppc64)
1485         arch="ppc"
1486         enable fast_64bit
1487         enable fast_unaligned
1488     ;;
1489     s390|s390x)
1490         arch="s390"
1491     ;;
1492     sh4|sh)
1493         arch="sh4"
1494     ;;
1495     sparc)
1496         arch="sparc"
1497     ;;
1498     sun4u|sparc64)
1499         arch="sparc"
1500         subarch="sparc64"
1501         enable fast_64bit
1502     ;;
1503     i386|i486|i586|i686|i86pc|BePC)
1504         arch="x86"
1505         subarch="x86_32"
1506         enable fast_unaligned
1507     ;;
1508     x86_64|amd64)
1509         arch="x86"
1510         subarch="x86_32"
1511         enable cmov
1512         enable fast_cmov
1513         enable fast_unaligned
1514         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1515         int test[sizeof(char*) - 7];
1516 EOF
1517     ;;
1518     *)
1519         arch="unknown"
1520     ;;
1521 esac
1522
1523 enable $arch $subarch
1524
1525 # OS specific
1526 case $target_os in
1527     beos|haiku|zeta)
1528         prefix_default="$HOME/config"
1529         # helps building libavcodec
1530         add_cflags -DPIC -fomit-frame-pointer
1531         # 3 gcc releases known for BeOS, each with ugly bugs
1532         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1533         case "$gcc_version" in
1534           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1535             disable mmx
1536             ;;
1537           *20010315*) echo "BeBits gcc"
1538             add_cflags -fno-expensive-optimizations
1539             ;;
1540         esac
1541         SHFLAGS=-nostart
1542         # enable BeOS things
1543         enable audio_beos
1544         # no need for libm, but the inet stuff
1545         # Check for BONE
1546         # XXX: actually should check for NOT net_server
1547         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1548             network_extralibs="-lbind -lsocket"
1549         else
1550             enable beos_netserver
1551             network_extralibs="-lnet"
1552         fi ;;
1553     sunos)
1554         FFSERVERLDFLAGS=""
1555         SHFLAGS='-shared -Wl,-h,$$(@F)'
1556         network_extralibs="-lsocket -lnsl"
1557         add_cflags -D__EXTENSIONS__
1558         ;;
1559     netbsd)
1560         oss_demuxer_extralibs="-lossaudio"
1561         oss_muxer_extralibs="-lossaudio"
1562         ;;
1563     openbsd)
1564         disable need_memalign
1565         LIBOBJFLAGS='$(PIC)'
1566         SHFLAGS='-shared'
1567         oss_demuxer_extralibs="-lossaudio"
1568         oss_muxer_extralibs="-lossaudio"
1569         ;;
1570     freebsd)
1571         disable need_memalign
1572         ;;
1573     bsd/os)
1574         osextralibs="-lpoll -lgnugetopt"
1575         strip="strip -d"
1576         ;;
1577     darwin)
1578         disable need_memalign
1579         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1580         strip="strip -x"
1581         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1582         SLIBSUF=".dylib"
1583         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1584         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1585         FFSERVERLDFLAGS=-Wl,-bind_at_load
1586         objformat="macho"
1587         enabled x86_64 && objformat="macho64"
1588         ;;
1589     mingw32*)
1590         target_os=mingw32
1591         LIBTARGET=i386
1592         if enabled x86_64; then
1593             disable need_memalign
1594             LIBTARGET=x64
1595         fi
1596         shlibdir_default="$bindir_default"
1597         disable ffserver
1598         SLIBPREF=""
1599         SLIBSUF=".dll"
1600         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1601         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1602         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1603         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1604             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1605         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1606         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1607         objformat="win32"
1608         enable dos_paths
1609         if ! enabled x86_64; then
1610             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1611                 die "ERROR: MinGW runtime version must be >= 3.15."
1612             enabled_any avisynth vfwcap_demuxer &&
1613                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1614                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1615             fi
1616         ;;
1617     cygwin*)
1618         target_os=cygwin
1619         shlibdir_default="$bindir_default"
1620         SLIBPREF="cyg"
1621         SLIBSUF=".dll"
1622         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1623         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1624         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1625         objformat="win32"
1626         enable dos_paths
1627         ;;
1628     *-dos|freedos|opendos)
1629         disable ffplay ffserver
1630         disable $INDEV_LIST $OUTDEV_LIST
1631         network_extralibs="-lsocket"
1632         objformat="coff"
1633         enable dos_paths
1634         ;;
1635     linux)
1636         enable dv1394
1637         ;;
1638     irix*)
1639         target_os=irix
1640         ranlib="echo ignoring ranlib"
1641         ;;
1642     os/2*)
1643         strip="lxlite"
1644         ln_s="cp -f"
1645         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1646         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1647         FFSERVERLDFLAGS=""
1648         LIBSUF="_s.a"
1649         SLIBPREF=""
1650         SLIBSUF=".dll"
1651         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1652         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1653         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1654           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1655           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1656           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1657           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1658           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1659         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1660           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1661         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1662         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1663         enable dos_paths
1664         ;;
1665
1666     *)
1667         die "Unknown OS '$target_os'."
1668         ;;
1669 esac
1670
1671 set_default $PATHS_LIST
1672
1673 add_extralibs $osextralibs
1674
1675 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1676 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1677
1678 # we need to build at least one lib type
1679 if ! enabled_any static shared; then
1680     cat <<EOF
1681 At least one library type must be built.
1682 Specify --enable-static to build the static libraries or --enable-shared to
1683 build the shared libraries as well. To only build the shared libraries specify
1684 --disable-static in addition to --enable-shared.
1685 EOF
1686     exit 1;
1687 fi
1688
1689 disabled static && LIBNAME=""
1690
1691 if enabled_any libfaad libfaadbin ; then
1692     if check_header faad.h; then
1693         check_cc <<EOF
1694 #include <faad.h>
1695 #ifndef FAAD2_VERSION
1696 ok faad1
1697 #endif
1698 int main(void) { return 0; }
1699 EOF
1700         test $? = 0 && enable libfaad2
1701     else
1702         die "FAAD test failed."
1703     fi
1704 fi
1705
1706
1707 if ! enabled gpl; then
1708     die_gpl_disabled(){
1709         name=$1
1710         shift
1711         enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1712     }
1713     die_gpl_disabled "The Postprocessing code" postproc
1714     die_gpl_disabled "libx264"                 libx264
1715     die_gpl_disabled "libxvidcore"             libxvid
1716     die_gpl_disabled "FAAD2"                   libfaad2
1717     die_gpl_disabled "The X11 grabber"         x11grab
1718 fi
1719
1720 if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1721     die "libamr is nonfree and --enable-nonfree is not specified."
1722 fi
1723
1724 check_deps $ARCH_EXT_LIST
1725
1726 test -z "$need_memalign" && need_memalign="$mmx"
1727
1728 #Darwin CC versions
1729 if test $target_os = darwin; then
1730     if enabled xlc; then
1731         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1732     else
1733         add_cflags -pipe
1734         check_cflags -force_cpusubtype_ALL
1735         check_cflags -Wno-sign-compare
1736         enabled shared || check_cflags -mdynamic-no-pic
1737     fi
1738 fi
1739
1740 disabled optimizations || check_cflags -fomit-frame-pointer
1741
1742 # Add processor-specific flags
1743 if test $cpu != "generic"; then
1744     warn_altivec(){
1745         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1746     }
1747     case $cpu in
1748         601|ppc601|PowerPC601)
1749             add_cflags -mcpu=601
1750             warn_altivec enabled PPC601
1751         ;;
1752         603*|ppc603*|PowerPC603*)
1753             add_cflags -mcpu=603
1754             warn_altivec enabled PPC603
1755         ;;
1756         604*|ppc604*|PowerPC604*)
1757             add_cflags -mcpu=604
1758             warn_altivec enabled PPC604
1759         ;;
1760         G3|g3|75*|ppc75*|PowerPC75*)
1761             add_cflags -mcpu=750 -mpowerpc-gfxopt
1762             warn_altivec enabled PPC75x
1763         ;;
1764         G4|g4|745*|ppc745*|PowerPC745*)
1765             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1766             warn_altivec disabled PPC745x
1767         ;;
1768         74*|ppc74*|PowerPC74*)
1769             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1770             warn_altivec disabled PPC74xx
1771         ;;
1772         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1773             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1774             warn_altivec disabled PPC970
1775             enable ppc64
1776         ;;
1777         Cell|CELL|cell)
1778             add_cflags -mcpu=cell
1779             warn_altivec disabled Cell
1780             enable ppc64
1781         ;;
1782         # targets that do NOT support conditional mov (cmov)
1783         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1784             add_cflags -march=$cpu
1785             disable cmov
1786         ;;
1787         # targets that do support conditional mov (cmov)
1788         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1789             add_cflags -march=$cpu
1790             enable cmov
1791             enable fast_cmov
1792         ;;
1793         # targets that do support conditional mov but on which it's slow
1794         pentium4|pentium4m|prescott|nocona)
1795             add_cflags -march=$cpu
1796             enable cmov
1797             disable fast_cmov
1798         ;;
1799         sparc64)
1800             add_cflags -mcpu=v9
1801         ;;
1802         arm11*|cortex*)
1803             add_cflags -mcpu=$cpu
1804             enable fast_unaligned
1805         ;;
1806         armv*)
1807             add_cflags -march=$cpu
1808         ;;
1809         arm*)
1810             add_cflags -mcpu=$cpu
1811         ;;
1812         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1813             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1814         ;;
1815         *)
1816             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1817         ;;
1818     esac
1819 fi
1820
1821 check_cc <<EOF || die "Symbol mangling check failed."
1822 int ff_extern;
1823 EOF
1824 sym=$($nm -P -g $TMPO | grep ff_extern)
1825 extern_prefix=${sym%%ff_extern*}
1826
1827 check_cc <<EOF && enable inline_asm
1828 void foo(void) { __asm__ volatile ("" ::); }
1829 EOF
1830
1831 if enabled x86; then
1832     # check whether EBP is available on x86
1833     # As 'i' is stored on the stack, this program will crash
1834     # if the base pointer is used to access it because the
1835     # base pointer is cleared in the inline assembly code.
1836     check_exec_crash <<EOF && enable ebp_available
1837     volatile int i=0;
1838     __asm__ volatile (
1839         "xorl %%ebp, %%ebp"
1840     ::: "%ebp");
1841     return i;
1842 EOF
1843
1844     # check wether EBX is available on x86
1845     check_asm ebx_available '"":::"%ebx"'
1846
1847     # check whether more than 10 operands are supported
1848     check_cc <<EOF && enable ten_operands
1849 int main(void) {
1850     int x=0;
1851     __asm__ volatile(
1852         ""
1853         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1854     );
1855     return 0;
1856 }
1857 EOF
1858
1859     # check whether binutils is new enough to compile SSSE3/MMX2
1860     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1861     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1862
1863     check_asm bswap '"bswap %%eax" ::: "%eax"'
1864
1865     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1866     enabled     x86_64        && append YASMFLAGS "-m amd64"
1867     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1868     case "$objformat" in
1869         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1870         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1871         *)                    append YASMFLAGS "-DPREFIX"  ;;
1872     esac
1873     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1874 fi
1875
1876 # check for assembler specific support
1877
1878 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1879 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1880
1881 # check for SIMD availability
1882
1883 # AltiVec flags: The FSF version of GCC differs from the Apple version
1884 if enabled altivec; then
1885     check_cflags -maltivec -mabi=altivec &&
1886         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1887         check_cflags -faltivec
1888
1889     # check if our compiler supports Motorola AltiVec C API
1890     check_cc <<EOF || disable altivec
1891 $inc_altivec_h
1892 int main(void) {
1893     vector signed int v1, v2, v3;
1894     v1 = vec_add(v2,v3);
1895     return 0;
1896 }
1897 EOF
1898
1899     # check if our compiler supports braces for vector declarations
1900     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1901 $inc_altivec_h
1902 int main (void) { (vector int) {1}; return 0; }
1903 EOF
1904 fi
1905
1906 # We have to check if pld is a nop and disable it.
1907 enabled arm     && check_asm pld     '"pld [r0]"'
1908 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1909 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1910 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1911 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1912 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1913 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1914 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1915 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1916
1917 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1918
1919 # ---
1920 # big/little-endian test
1921 check_cc <<EOF || die "endian test failed"
1922 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1923 EOF
1924 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1925
1926 # ---
1927 # check availability of some header files
1928
1929 if check_func dlopen; then
1930     ldl=
1931 elif check_func dlopen -ldl; then
1932     ldl=-ldl
1933 fi
1934
1935 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
1936 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
1937
1938 check_func  fork
1939 check_func  gethrtime
1940 check_func  getrusage
1941 check_func  inet_aton $network_extralibs
1942 check_func  memalign
1943 check_func  mkstemp
1944 check_func  posix_memalign
1945 check_func_headers io.h setmode
1946 check_func_headers windows.h GetProcessTimes
1947
1948 check_header conio.h
1949 check_header dlfcn.h
1950 check_header malloc.h
1951 check_header poll.h
1952 check_header sys/mman.h
1953 check_header sys/resource.h
1954 check_header sys/select.h
1955 check_header termios.h
1956 check_header vdpau/vdpau.h
1957 check_header vdpau/vdpau_x11.h
1958 check_header X11/extensions/XvMClib.h
1959
1960 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
1961     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
1962 fi
1963
1964 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
1965 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
1966
1967 # check for some common methods of building with pthread support
1968 # do this before the optional library checks as some of them require pthreads
1969 if enabled pthreads; then
1970     if check_func pthread_create; then
1971         :
1972     elif check_func pthread_create -pthread; then
1973         add_cflags -pthread
1974         add_extralibs -pthread
1975     elif check_func pthread_create -pthreads; then
1976         add_cflags -pthreads
1977         add_extralibs -pthreads
1978     elif check_func pthread_create -lpthreadGC2; then
1979         add_extralibs -lpthreadGC2
1980     elif ! check_lib pthread.h pthread_create -lpthread; then
1981         die "ERROR: can't find pthreads library"
1982     fi
1983 fi
1984
1985 for thread in $THREADS_LIST; do
1986     if enabled $thread; then
1987         test -n "$thread_type" &&
1988             die "ERROR: Only one thread type must be selected." ||
1989             thread_type="$thread"
1990     fi
1991 done
1992
1993 check_lib math.h sin -lm
1994
1995 # test for C99 functions in math.h
1996 for func in llrint lrint lrintf round roundf truncf; do
1997     check_exec <<EOF && enable $func || disable $func
1998 #include <math.h>
1999 int main(void) { return ($func(3.999f) > 0)?0:1; }
2000 EOF
2001 done
2002
2003 # these are off by default, so fail if requested and not available
2004 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2005 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
2006 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
2007 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2008                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2009                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2010 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2011 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2012 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2013 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2014 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2015 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2016 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2017                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2018 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2019 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2020 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2021 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2022                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2023                         die "ERROR: libx264 version must be >= 0.65."; }
2024 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2025 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2026
2027 # libdc1394 check
2028 if enabled libdc1394; then
2029     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2030         enable libdc1394_2; } ||
2031     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2032         enable libdc1394_1; } ||
2033     die "ERROR: No version of libdc1394 found "
2034 fi
2035
2036
2037 _restrict=
2038 for restrict_keyword in restrict __restrict__ __restrict; do
2039     check_cc <<EOF && _restrict=$restrict_keyword && break
2040 void foo(char * $restrict_keyword p);
2041 EOF
2042 done
2043
2044 ##########################################
2045 # SDL check
2046
2047 disable sdl_too_old
2048 disable sdl
2049 SDL_CONFIG="${cross_prefix}sdl-config"
2050 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2051     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2052     temp_cflags $sdl_cflags
2053     temp_extralibs $("${SDL_CONFIG}" --libs)
2054     if check_lib2 SDL.h SDL_Init; then
2055         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2056         if test "$_sdlversion" -lt 121 ; then
2057             enable sdl_too_old
2058         else
2059             enable sdl
2060             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2061 #include <SDL.h>
2062 int main(int argc, char **argv){
2063     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2064     int w = vi->current_w;
2065     return 0;
2066 }
2067 EOF
2068         fi
2069     fi
2070     restore_flags
2071 fi
2072
2073 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2074
2075 ##########################################
2076 # Network check
2077
2078 if enabled network; then
2079     check_type "sys/types.h sys/socket.h" socklen_t
2080     # Prefer arpa/inet.h over winsock2
2081     if check_header arpa/inet.h ; then
2082         check_func closesocket
2083     elif check_header winsock2.h ; then
2084         network_extralibs="-lws2_32"
2085         check_type ws2tcpip.h socklen_t
2086         check_func_headers winsock2.h closesocket
2087     fi
2088 fi
2089
2090 ##########################################
2091 # IPv6 check
2092
2093 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2094 #include <sys/types.h>
2095 #include <sys/socket.h>
2096 #include <netinet/in.h>
2097 #include <netdb.h>
2098 int main(void) {
2099     struct sockaddr_storage saddr;
2100     struct ipv6_mreq mreq6;
2101     getaddrinfo(0,0,0,0);
2102     getnameinfo(0,0,0,0,0,0,0);
2103     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2104 }
2105 EOF
2106
2107 check_header linux/videodev.h
2108 check_header linux/videodev2.h
2109 check_header sys/videoio.h
2110
2111 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2112
2113 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2114 { check_header dev/bktr/ioctl_meteor.h &&
2115   check_header dev/bktr/ioctl_bt848.h; } ||
2116 { check_header machine/ioctl_meteor.h &&
2117   check_header machine/ioctl_bt848.h; } ||
2118 { check_header dev/video/meteor/ioctl_meteor.h &&
2119   check_header dev/video/bktr/ioctl_bt848.h; } ||
2120 check_header dev/ic/bt8xx.h
2121
2122 check_header sys/soundcard.h
2123 check_header soundcard.h
2124
2125 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2126
2127 # deal with the X11 frame grabber
2128 enabled x11grab                         &&
2129 check_header X11/Xlib.h                 &&
2130 check_header X11/extensions/XShm.h      &&
2131 check_func XOpenDisplay -lX11           &&
2132 check_func XShmCreateImage -lX11 -lXext
2133
2134 enabled debug && add_cflags -g"$debuglevel"
2135
2136 # add some useful compiler flags if supported
2137 check_cflags -Wdeclaration-after-statement
2138 check_cflags -Wall
2139 check_cflags -Wno-switch
2140 check_cflags -Wdisabled-optimization
2141 check_cflags -Wpointer-arith
2142 check_cflags -Wredundant-decls
2143 check_cflags -Wno-pointer-sign
2144 check_cflags -Wcast-qual
2145 check_cflags -Wwrite-strings
2146 check_cflags -Wtype-limits
2147 check_cflags -Wundef
2148 enabled extra_warnings && check_cflags -Winline
2149
2150 # add some linker flags
2151 check_ldflags -Wl,--warn-common
2152 check_ldflags -Wl,--as-needed
2153 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'
2154 check_ldflags -Wl,-Bsymbolic
2155
2156 if enabled small; then
2157     check_cflags -Os            # not all compilers support -Os
2158     optimizations="small"
2159 elif enabled optimizations; then
2160     if enabled xlc; then
2161         add_cflags  -O5
2162         add_ldflags -O5
2163     elif enabled ccc; then
2164         add_cflags -fast
2165     else
2166         add_cflags -O3
2167     fi
2168 fi
2169 check_cflags -fno-math-errno
2170 check_cflags -fno-signed-zeros
2171
2172 # add some flags for Intel C Compiler
2173 if enabled icc; then
2174     # Just warnings, no remarks
2175     check_cflags -w1
2176     # -wd: Disable following warnings
2177     # 144, 167, 556: -Wno-pointer-sign
2178     # 10006: ignoring unknown option -fno-signed-zeros
2179     # 10156: ignoring option '-W'; no argument required
2180     check_cflags -wd144,167,556,10006,10156
2181     # 11030: Warning unknown option --as-needed
2182     # 10156: ignoring option '-export'; no argument required
2183     check_ldflags -wd10156,11030
2184     # Allow to compile with optimizations
2185     check_ldflags -march=$cpu
2186     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2187     enable ebp_available
2188 elif enabled ccc; then
2189     # disable some annoying warnings
2190     add_cflags -msg_disable cvtu32to64
2191     add_cflags -msg_disable embedcomment
2192     add_cflags -msg_disable needconstext
2193     add_cflags -msg_disable nomainieee
2194     add_cflags -msg_disable ptrmismatch1
2195     add_cflags -msg_disable unreachcode
2196 fi
2197
2198 # PIC flags for shared library objects where they are needed
2199 if enabled shared; then
2200     # LIBOBJFLAGS may have already been set in the OS configuration
2201     if test -z "$LIBOBJFLAGS" ; then
2202         case "${subarch-$arch}" in
2203             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2204         esac
2205     fi
2206 fi
2207
2208 if enabled gprof; then
2209     add_cflags  -p
2210     add_ldflags -p
2211 fi
2212
2213 # Find out if the .align argument is a power of two or not.
2214 check_asm asmalign_pot '".align 3"'
2215
2216 enabled_any $DECODER_LIST      && enable decoders
2217 enabled_any $ENCODER_LIST      && enable encoders
2218 enabled_any $BSF_LIST          && enable bsfs
2219 enabled_any $DEMUXER_LIST      && enable demuxers
2220 enabled_any $MUXER_LIST        && enable muxers
2221 enabled_any $FILTER_LIST       && enable filters
2222 enabled_any $INDEV_LIST        && enable demuxers
2223 enabled_any $OUTDEV_LIST       && enable muxers
2224 enabled_any $PROTOCOL_LIST     && enable protocols
2225
2226 enabled_any $THREADS_LIST      && enable threads
2227
2228 check_deps $CONFIG_LIST       \
2229            $CONFIG_EXTRA      \
2230            $HAVE_LIST         \
2231            $DECODER_LIST      \
2232            $ENCODER_LIST      \
2233            $PARSER_LIST       \
2234            $BSF_LIST          \
2235            $DEMUXER_LIST      \
2236            $MUXER_LIST        \
2237            $FILTER_LIST       \
2238            $INDEV_LIST        \
2239            $OUTDEV_LIST       \
2240            $PROTOCOL_LIST     \
2241
2242 echo "install prefix            $prefix"
2243 echo "source path               $source_path"
2244 echo "C compiler                $cc"
2245 echo ".align is power-of-two    $asmalign_pot"
2246 echo "ARCH                      $arch ($cpu)"
2247 if test "$build_suffix" != ""; then
2248     echo "build suffix              $build_suffix"
2249 fi
2250 if test "$extra_version" != ""; then
2251     echo "version string suffix     $extra_version"
2252 fi
2253 echo "big-endian                ${bigendian-no}"
2254 if enabled x86; then
2255     echo "yasm                      ${yasm-no}"
2256     echo "MMX enabled               ${mmx-no}"
2257     echo "MMX2 enabled              ${mmx2-no}"
2258     echo "3DNow! enabled            ${amd3dnow-no}"
2259     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2260     echo "SSE enabled               ${sse-no}"
2261     echo "SSSE3 enabled             ${ssse3-no}"
2262     echo "CMOV enabled              ${cmov-no}"
2263     echo "CMOV is fast              ${fast_cmov-no}"
2264     echo "EBX available             ${ebx_available-no}"
2265     echo "EBP available             ${ebp_available-no}"
2266     echo "10 operands supported     ${ten_operands-no}"
2267 fi
2268 if enabled arm; then
2269     echo "ARMv5TE enabled           ${armv5te-no}"
2270     echo "ARMv6 enabled             ${armv6-no}"
2271     echo "ARMv6T2 enabled           ${armv6t2-no}"
2272     echo "ARM VFP enabled           ${armvfp-no}"
2273     echo "IWMMXT enabled            ${iwmmxt-no}"
2274     echo "NEON enabled              ${neon-no}"
2275 fi
2276 if enabled mips; then
2277     echo "MMI enabled               ${mmi-no}"
2278 fi
2279 if enabled ppc; then
2280     echo "AltiVec enabled           ${altivec-no}"
2281     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2282     echo "dcbzl available           ${dcbzl-no}"
2283     echo "performance report        ${powerpc_perf-no}"
2284 fi
2285 if enabled sparc; then
2286     echo "VIS enabled               ${vis-no}"
2287 fi
2288 echo "gprof enabled             ${gprof-no}"
2289 echo "debug symbols             ${debug-no}"
2290 echo "strip symbols             ${stripping-no}"
2291 echo "optimizations             ${optimizations-no}"
2292 echo "static                    ${static-no}"
2293 echo "shared                    ${shared-no}"
2294 echo "postprocessing support    ${postproc-no}"
2295 echo "new filter support        ${avfilter-no}"
2296 echo "filters using lavformat   ${avfilter_lavf-no}"
2297 echo "network support           ${network-no}"
2298 if enabled network; then
2299     echo "IPv6 support              ${ipv6-no}"
2300 fi
2301 echo "threading support         ${thread_type-no}"
2302 echo "SDL support               ${sdl-no}"
2303 if enabled sdl_too_old; then
2304     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2305 fi
2306 echo "Sun medialib support      ${mlib-no}"
2307 echo "AVISynth enabled          ${avisynth-no}"
2308 echo "libamr-nb support         ${libamr_nb-no}"
2309 echo "libamr-wb support         ${libamr_wb-no}"
2310 echo "libdc1394 support         ${libdc1394-no}"
2311 echo "libdirac enabled          ${libdirac-no}"
2312 echo "libfaac enabled           ${libfaac-no}"
2313 echo "libfaad enabled           ${libfaad-no}"
2314 echo "libfaad dlopened          ${libfaadbin-no}"
2315 echo "libgsm enabled            ${libgsm-no}"
2316 echo "libmp3lame enabled        ${libmp3lame-no}"
2317 echo "libnut enabled            ${libnut-no}"
2318 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2319 echo "libschroedinger enabled   ${libschroedinger-no}"
2320 echo "libspeex enabled          ${libspeex-no}"
2321 echo "libtheora enabled         ${libtheora-no}"
2322 echo "libvorbis enabled         ${libvorbis-no}"
2323 echo "libx264 enabled           ${libx264-no}"
2324 echo "libxvid enabled           ${libxvid-no}"
2325 echo "zlib enabled              ${zlib-no}"
2326 echo "bzlib enabled             ${bzlib-no}"
2327 echo
2328
2329 for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
2330     echo "Enabled ${type}s:"
2331     eval list=\$$(toupper $type)_LIST
2332     for part in $list; do
2333         enabled $part && echo ${part%_*}
2334     done | sort | pr -3 -t
2335     echo
2336 done
2337
2338 license="LGPL"
2339 if enabled nonfree; then
2340     license="unredistributable"
2341 elif enabled gpl; then
2342     license="GPL"
2343 fi
2344
2345 echo "License: $license"
2346
2347 echo "Creating config.mak and config.h..."
2348
2349 echo "# Automatically generated by configure - do not modify!" > config.mak
2350 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2351 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2352 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2353 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2354 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2355
2356 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2357 echo "prefix=$prefix" >> config.mak
2358 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2359 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2360 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2361 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2362 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2363 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2364 echo "CC=$cc" >> config.mak
2365 echo "AS=$as" >> config.mak
2366 echo "YASM=$yasmexe" >> config.mak
2367 echo "AR=$ar" >> config.mak
2368 echo "RANLIB=$ranlib" >> config.mak
2369 echo "LN_S=$ln_s" >> config.mak
2370 enabled stripping &&
2371     echo "STRIP=$strip" >> config.mak ||
2372     echo "STRIP=echo ignoring strip" >> config.mak
2373
2374 echo "OPTFLAGS=$CFLAGS" >> config.mak
2375 echo "LDFLAGS=$LDFLAGS" >> config.mak
2376 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2377 echo "SHFLAGS=$SHFLAGS" >> config.mak
2378 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2379 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2380 echo "BUILD_STATIC=$static" >> config.mak
2381 echo "BUILDSUF=$build_suffix" >> config.mak
2382 echo "FULLNAME=$FULLNAME" >> config.mak
2383 echo "LIBPREF=$LIBPREF" >> config.mak
2384 echo "LIBSUF=$LIBSUF" >> config.mak
2385 echo "LIBNAME=$LIBNAME" >> config.mak
2386 echo "SLIBPREF=$SLIBPREF" >> config.mak
2387 echo "SLIBSUF=$SLIBSUF" >> config.mak
2388 echo "EXESUF=$EXESUF" >> config.mak
2389 echo "EXTRA_VERSION=$extra_version" >> config.mak
2390 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2391 echo "HOSTCC=$host_cc" >> config.mak
2392 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2393 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2394 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2395 echo "HOSTLIBS=$host_libs" >> config.mak
2396 echo "TARGET_EXEC=$target_exec" >> config.mak
2397 echo "TARGET_PATH=$target_path" >> config.mak
2398
2399 if enabled bigendian; then
2400     echo "WORDS_BIGENDIAN=yes" >> config.mak
2401     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2402 fi
2403
2404 if enabled sdl; then
2405     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2406     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2407 fi
2408 if enabled texi2html; then
2409     echo "BUILD_DOC=yes" >> config.mak
2410 fi
2411
2412 get_version(){
2413     name=$1
2414     file=$source_path/$2
2415     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2416     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2417     lcname=$(tolower $name)
2418     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2419     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2420 }
2421
2422 get_version LIBSWSCALE  libswscale/swscale.h
2423 get_version LIBPOSTPROC libpostproc/postprocess.h
2424 get_version LIBAVCODEC  libavcodec/avcodec.h
2425 get_version LIBAVDEVICE libavdevice/avdevice.h
2426 get_version LIBAVFORMAT libavformat/avformat.h
2427 get_version LIBAVUTIL   libavutil/avutil.h
2428 get_version LIBAVFILTER libavfilter/avfilter.h
2429
2430 if enabled shared; then
2431     echo "BUILD_SHARED=yes" >> config.mak
2432     echo "PIC=-fPIC -DPIC" >> config.mak
2433     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2434     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2435     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2436     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2437     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2438     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2439     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2440     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2441 fi
2442 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2443 echo "EXTRALIBS=$extralibs" >> config.mak
2444
2445 echo "ARCH=$arch" >> config.mak
2446
2447 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2448 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2449 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2450                                       $CONFIG_EXTRA      \
2451                                       $DECODER_LIST      \
2452                                       $ENCODER_LIST      \
2453                                       $PARSER_LIST       \
2454                                       $BSF_LIST          \
2455                                       $DEMUXER_LIST      \
2456                                       $MUXER_LIST        \
2457                                       $FILTER_LIST       \
2458                                       $PROTOCOL_LIST     \
2459                                       $INDEV_LIST        \
2460                                       $OUTDEV_LIST       \
2461
2462 echo "#define restrict $_restrict" >> $TMPH
2463
2464 if enabled small; then
2465     echo "#define av_always_inline"  >> $TMPH
2466 fi
2467
2468 echo "SRC_PATH=\"$source_path\"" >> config.mak
2469 echo "SRC_PATH_BARE=$source_path" >> config.mak
2470 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2471
2472 # Apparently it's not possible to portably echo a backslash.
2473 enabled asmalign_pot &&
2474     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2475     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2476
2477 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2478
2479 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2480
2481 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2482 cmp -s $TMPH config.h &&
2483     echo "config.h is unchanged" ||
2484     mv -f $TMPH config.h
2485
2486 # build tree in object directory if source path is different from current one
2487 if enabled source_path_used; then
2488     DIRS="\
2489         doc               \
2490         libavcodec        \
2491         libavcodec/alpha  \
2492         libavcodec/arm    \
2493         libavcodec/bfin   \
2494         libavcodec/mlib   \
2495         libavcodec/ppc    \
2496         libavcodec/sh4    \
2497         libavcodec/sparc  \
2498         libavcodec/x86    \
2499         libavdevice       \
2500         libavfilter       \
2501         libavformat       \
2502         libavutil         \
2503         libpostproc       \
2504         libswscale        \
2505         tests             \
2506         tools             \
2507         "
2508     FILES="\
2509         Makefile             \
2510         common.mak           \
2511         subdir.mak           \
2512         doc/texi2pod.pl      \
2513         libavcodec/Makefile  \
2514         libavdevice/Makefile \
2515         libavfilter/Makefile \
2516         libavformat/Makefile \
2517         libavutil/Makefile   \
2518         libpostproc/Makefile \
2519         libswscale/Makefile  \
2520         "
2521     for dir in $DIRS ; do
2522         mkdir -p $dir
2523     done
2524     for f in $FILES ; do
2525         $ln_s "$source_path/$f" $f
2526     done
2527 fi
2528
2529
2530 # build pkg-config files
2531
2532 pkgconfig_generate(){
2533 name=$1
2534 shortname=${name#lib}${build_suffix}
2535 comment=$2
2536 version=$3
2537 libs=$4
2538 requires=$5
2539 cat <<EOF > $name/$name.pc
2540 prefix=$prefix
2541 exec_prefix=\${prefix}
2542 libdir=$libdir
2543 includedir=$incdir
2544
2545 Name: $name
2546 Description: $comment
2547 Version: $version
2548 Requires: $(disabled shared && echo $requires)
2549 Requires.private: $(enabled shared && echo $requires)
2550 Conflicts:
2551 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2552 Libs.private: $(enabled shared && echo $libs)
2553 Cflags: -I\${includedir}
2554 EOF
2555 cat <<EOF > $name/$name-uninstalled.pc
2556 prefix=
2557 exec_prefix=
2558 libdir=\${pcfiledir}
2559 includedir=${source_path}
2560
2561 Name: $name
2562 Description: $comment
2563 Version: $version
2564 Requires: $requires
2565 Conflicts:
2566 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2567 Cflags: -I\${includedir}
2568 EOF
2569 }
2570
2571 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2572 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2573 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2574 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2575 enabled avfilter &&
2576     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2577 enabled postproc &&
2578     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2579 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"