ffprobe: redesign json_escape_str(), to make use of a global buffer
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-ffplay         disable ffplay build
86   --disable-ffprobe        disable ffprobe build
87   --disable-ffserver       disable ffserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swresample     disable libswresample build
92   --disable-swscale        disable libswscale build
93   --disable-postproc       disable libpostproc build
94   --disable-avfilter       disable video filter support [no]
95   --disable-pthreads       disable pthreads [auto]
96   --enable-w32threads      use Win32 threads [no]
97   --enable-x11grab         enable X11 grabbing [no]
98   --disable-network        disable network support [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-huffman        disable Huffman code
108   --disable-lpc            disable LPC code
109   --disable-mdct           disable MDCT code
110   --disable-rdft           disable RDFT code
111   --enable-vaapi           enable VAAPI code [autodetect]
112   --enable-vdpau           enable VDPAU code [autodetect]
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
166   --enable-frei0r          enable frei0r video filtering
167   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
168   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
169   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
170   --enable-libopencv       enable video filtering via libopencv [no]
171   --enable-libcdio         enable audio CD grabbing with libcdio
172   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
173                            and libraw1394 [no]
174   --enable-libdirac        enable Dirac support via libdirac [no]
175   --enable-libfaac         enable FAAC support via libfaac [no]
176   --enable-libfreetype     enable libfreetype [no]
177   --enable-libgsm          enable GSM support via libgsm [no]
178   --enable-libmodplug      enable ModPlug via libmodplug [no]
179   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
180   --enable-libnut          enable NUT (de)muxing via libnut,
181                            native (de)muxer exists [no]
182   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
185   --enable-libspeex        enable Speex encoding and decoding via libspeex [no]
186   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
187   --enable-libtheora       enable Theora encoding via libtheora [no]
188   --enable-libutvideo      enable Ut Video decoding via libutvideo [no]
189   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
190   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
191   --enable-libvorbis       enable Vorbis encoding via libvorbis,
192                            native implementation exists [no]
193   --enable-libvpx          enable VP8 support via libvpx [no]
194   --enable-libx264         enable H.264 encoding via x264 [no]
195   --enable-libxavs         enable AVS encoding via xavs [no]
196   --enable-libxvid         enable Xvid encoding via xvidcore,
197                            native MPEG-4/Xvid encoder exists [no]
198   --enable-openal          enable OpenAL 1.1 capture support [no]
199   --enable-mlib            enable Sun medialib [no]
200   --enable-zlib            enable zlib [autodetect]
201
202 Advanced options (experts only):
203   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
204   --enable-cross-compile   assume a cross-compiler is used
205   --sysroot=PATH           root of cross-build tree
206   --sysinclude=PATH        location of cross-build system headers
207   --target-os=OS           compiler targets OS [$target_os]
208   --target-exec=CMD        command to run executables on target
209   --target-path=DIR        path to view of build directory on target
210   --nm=NM                  use nm tool
211   --ar=AR                  use archive tool AR [$ar_default]
212   --as=AS                  use assembler AS [$as_default]
213   --cc=CC                  use C compiler CC [$cc_default]
214   --cxx=CXX                use C compiler CXX [$cxx_default]
215   --ld=LD                  use linker LD
216   --host-cc=HOSTCC         use host C compiler HOSTCC
217   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
218   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
219   --host-libs=HLIBS        use libs HLIBS when linking for host
220   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
221   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
222   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
223   --extra-libs=ELIBS       add ELIBS [$ELIBS]
224   --extra-version=STRING   version string suffix []
225   --build-suffix=SUFFIX    library name suffix []
226   --progs-suffix=SUFFIX    program name suffix []
227   --arch=ARCH              select architecture [$arch]
228   --cpu=CPU                select the minimum required CPU (affects
229                            instruction selection, may crash on older CPUs)
230   --disable-asm            disable all assembler optimizations
231   --disable-altivec        disable AltiVec optimizations
232   --disable-amd3dnow       disable 3DNow! optimizations
233   --disable-amd3dnowext    disable 3DNow! extended optimizations
234   --disable-mmx            disable MMX optimizations
235   --disable-mmx2           disable MMX2 optimizations
236   --disable-sse            disable SSE optimizations
237   --disable-ssse3          disable SSSE3 optimizations
238   --disable-avx            disable AVX optimizations
239   --disable-armv5te        disable armv5te optimizations
240   --disable-armv6          disable armv6 optimizations
241   --disable-armv6t2        disable armv6t2 optimizations
242   --disable-armvfp         disable ARM VFP optimizations
243   --disable-iwmmxt         disable iwmmxt optimizations
244   --disable-mmi            disable MMI optimizations
245   --disable-neon           disable neon optimizations
246   --disable-vis            disable VIS optimizations
247   --disable-yasm           disable use of yasm assembler
248   --enable-pic             build position-independent code
249   --malloc-prefix=PFX      prefix malloc and related names with PFX
250   --enable-sram            allow use of on-chip SRAM
251   --disable-symver         disable symbol versioning
252   --optflags               override optimization-related compiler flags
253
254 Developer options (useful when working on FFmpeg itself):
255   --disable-debug          disable debugging symbols
256   --enable-debug=LEVEL     set the debug level [$debuglevel]
257   --disable-optimizations  disable compiler optimizations
258   --enable-extra-warnings  enable more compiler warnings
259   --disable-stripping      disable stripping of executables and shared libraries
260   --samples=PATH           location of test samples for FATE, if not set use
261                            \$FATE_SAMPLES at make invocation time.
262
263 NOTE: Object files are built at the place where configure is launched.
264 EOF
265   exit 0
266 }
267
268 quotes='""'
269
270 log(){
271     echo "$@" >> $logfile
272 }
273
274 log_file(){
275     log BEGIN $1
276     pr -n -t $1 >> $logfile
277     log END $1
278 }
279
280 echolog(){
281     log "$@"
282     echo "$@"
283 }
284
285 warn(){
286     log "WARNING: $*"
287     WARNINGS="${WARNINGS}WARNING: $*\n"
288 }
289
290 die(){
291     echolog "$@"
292     cat <<EOF
293
294 If you think configure made a mistake, make sure you are using the latest
295 version from Git.  If the latest version fails, report the problem to the
296 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
297 EOF
298     if disabled logging; then
299         cat <<EOF
300 Rerun configure with logging enabled (do not use --disable-logging), and
301 include the log this produces with your report.
302 EOF
303     else
304 cat <<EOF
305 Include the log file "$logfile" produced by configure as this will help
306 solving the problem.
307 EOF
308     fi
309     exit 1
310 }
311
312 # Avoid locale weirdness, besides we really just want to translate ASCII.
313 toupper(){
314     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
315 }
316
317 tolower(){
318     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
319 }
320
321 c_escape(){
322     echo "$*" | sed 's/["\\]/\\\0/g'
323 }
324
325 sh_quote(){
326     v=$(echo "$1" | sed "s/'/'\\\\''/g")
327     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
328     echo "$v"
329 }
330
331 cleanws(){
332     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
333 }
334
335 filter(){
336     pat=$1
337     shift
338     for v; do
339         eval "case $v in $pat) echo $v ;; esac"
340     done
341 }
342
343 filter_out(){
344     pat=$1
345     shift
346     for v; do
347         eval "case $v in $pat) ;; *) echo $v ;; esac"
348     done
349 }
350
351 map(){
352     m=$1
353     shift
354     for v; do eval $m; done
355 }
356
357 set_all(){
358     value=$1
359     shift
360     for var in $*; do
361         eval $var=$value
362     done
363 }
364
365 set_weak(){
366     value=$1
367     shift
368     for var; do
369         eval : \${$var:=$value}
370     done
371 }
372
373 set_safe(){
374     var=$1
375     shift
376     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
377 }
378
379 get_safe(){
380     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
381 }
382
383 pushvar(){
384     for var in $*; do
385         eval level=\${${var}_level:=0}
386         eval ${var}_${level}="\$$var"
387         eval ${var}_level=$(($level+1))
388     done
389 }
390
391 popvar(){
392     for var in $*; do
393         eval level=\${${var}_level:-0}
394         test $level = 0 && continue
395         eval level=$(($level-1))
396         eval $var="\${${var}_${level}}"
397         eval ${var}_level=$level
398         eval unset ${var}_${level}
399     done
400 }
401
402 enable(){
403     set_all yes $*
404 }
405
406 disable(){
407     set_all no $*
408 }
409
410 enable_weak(){
411     set_weak yes $*
412 }
413
414 disable_weak(){
415     set_weak no $*
416 }
417
418 enable_safe(){
419     for var; do
420         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
421     done
422 }
423
424 disable_safe(){
425     for var; do
426         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
427     done
428 }
429
430 do_enable_deep(){
431     for var; do
432         enabled $var && continue
433         eval sel="\$${var}_select"
434         eval sgs="\$${var}_suggest"
435         pushvar var sgs
436         enable_deep $sel
437         popvar sgs
438         enable_deep_weak $sgs
439         popvar var
440     done
441 }
442
443 enable_deep(){
444     do_enable_deep $*
445     enable $*
446 }
447
448 enable_deep_weak(){
449     do_enable_deep $*
450     enable_weak $*
451 }
452
453 enabled(){
454     test "${1#!}" = "$1" && op== || op=!=
455     eval test "x\$${1#!}" $op "xyes"
456 }
457
458 disabled(){
459     test "${1#!}" = "$1" && op== || op=!=
460     eval test "x\$${1#!}" $op "xno"
461 }
462
463 enabled_all(){
464     for opt; do
465         enabled $opt || return 1
466     done
467 }
468
469 disabled_all(){
470     for opt; do
471         disabled $opt || return 1
472     done
473 }
474
475 enabled_any(){
476     for opt; do
477         enabled $opt && return 0
478     done
479 }
480
481 disabled_any(){
482     for opt; do
483         disabled $opt && return 0
484     done
485     return 1
486 }
487
488 set_default(){
489     for opt; do
490         eval : \${$opt:=\$${opt}_default}
491     done
492 }
493
494 is_in(){
495     value=$1
496     shift
497     for var in $*; do
498         [ $var = $value ] && return 0
499     done
500     return 1
501 }
502
503 check_deps(){
504     for cfg; do
505         cfg="${cfg#!}"
506         enabled ${cfg}_checking && die "Circular dependency for $cfg."
507         disabled ${cfg}_checking && continue
508         enable ${cfg}_checking
509
510         eval dep_all="\$${cfg}_deps"
511         eval dep_any="\$${cfg}_deps_any"
512         eval dep_sel="\$${cfg}_select"
513         eval dep_sgs="\$${cfg}_suggest"
514         eval dep_ifa="\$${cfg}_if"
515         eval dep_ifn="\$${cfg}_if_any"
516
517         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
518         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
519         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
520
521         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
522         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
523         enabled_all  $dep_all || disable $cfg
524         enabled_any  $dep_any || disable $cfg
525         disabled_any $dep_sel && disable $cfg
526
527         if enabled $cfg; then
528             eval dep_extralibs="\$${cfg}_extralibs"
529             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
530             enable_deep $dep_sel
531             enable_deep_weak $dep_sgs
532         fi
533
534         disable ${cfg}_checking
535     done
536 }
537
538 print_config_h(){
539     enabled $1 && v=1 || v=0
540     echo "#define $2 $v"
541 }
542
543 print_config_mak(){
544     enabled $1 && v= || v=!
545     echo "$v$2=yes"
546 }
547
548 print_config_asm(){
549     enabled $1 && echo "%define $2"
550 }
551
552 print_config(){
553     pfx=$1
554     files=$2
555     shift 2
556     for cfg; do
557         ucname="$(toupper $cfg)"
558         for f in $files; do
559             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
560         done
561     done
562 }
563
564 print_enabled(){
565     test "$1" = -n && end=" " && shift || end="\n"
566     suf=$1
567     shift
568     for v; do
569         enabled $v && printf "%s$end" ${v%$suf};
570     done
571 }
572
573 append(){
574     var=$1
575     shift
576     eval "$var=\"\$$var $*\""
577 }
578
579 prepend(){
580     var=$1
581     shift
582     eval "$var=\"$* \$$var\""
583 }
584
585 add_cppflags(){
586     append CPPFLAGS $($filter_cppflags "$@")
587 }
588
589 add_cflags(){
590     append CFLAGS $($filter_cflags "$@")
591 }
592
593 add_cxxflags(){
594     append CXXFLAGS $($filter_cflags "$@")
595 }
596
597 add_asflags(){
598     append ASFLAGS $($filter_asflags "$@")
599 }
600
601 add_ldflags(){
602     append LDFLAGS "$@"
603 }
604
605 add_extralibs(){
606     prepend extralibs "$@"
607 }
608
609 check_cmd(){
610     log "$@"
611     "$@" >> $logfile 2>&1
612 }
613
614 check_cc(){
615     log check_cc "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
619 }
620
621 check_cxx(){
622     log check_cxx "$@"
623     cat > $TMPCPP
624     log_file $TMPCPP
625     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
626 }
627
628 check_cpp(){
629     log check_cpp "$@"
630     cat > $TMPC
631     log_file $TMPC
632     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
633 }
634
635 check_as(){
636     log check_as "$@"
637     cat > $TMPC
638     log_file $TMPC
639     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
640 }
641
642 check_asm(){
643     log check_asm "$@"
644     name="$1"
645     code="$2"
646     shift 2
647     disable $name
648     check_as "$@" <<EOF && enable $name
649 void foo(void){ __asm__ volatile($code); }
650 EOF
651 }
652
653 check_yasm(){
654     log check_yasm "$@"
655     echo "$1" > $TMPS
656     log_file $TMPS
657     shift 1
658     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
659 }
660
661 check_ld(){
662     log check_ld "$@"
663     type=$1
664     shift 1
665     flags=''
666     libs=''
667     for f; do
668         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
669     done
670     check_$type $($filter_cflags $flags) || return
671     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
672 }
673
674 check_cppflags(){
675     log check_cppflags "$@"
676     set -- $($filter_cppflags "$@")
677     check_cc "$@" <<EOF && append CPPFLAGS "$@"
678 int x;
679 EOF
680 }
681
682 check_cflags(){
683     log check_cflags "$@"
684     set -- $($filter_cflags "$@")
685     check_cc "$@" <<EOF && append CFLAGS "$@"
686 int x;
687 EOF
688 }
689
690 check_cxxflags(){
691     log check_cxxflags "$@"
692     set -- $($filter_cflags "$@")
693     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
694 int x;
695 EOF
696 }
697
698 test_ldflags(){
699     log test_ldflags "$@"
700     check_ld "cc" "$@" <<EOF
701 int main(void){ return 0; }
702 EOF
703 }
704
705 check_ldflags(){
706     log check_ldflags "$@"
707     test_ldflags "$@" && add_ldflags "$@"
708 }
709
710 check_header(){
711     log check_header "$@"
712     header=$1
713     shift
714     disable_safe $header
715     check_cpp "$@" <<EOF && enable_safe $header
716 #include <$header>
717 int x;
718 EOF
719 }
720
721 check_func(){
722     log check_func "$@"
723     func=$1
724     shift
725     disable $func
726     check_ld "cc" "$@" <<EOF && enable $func
727 extern int $func();
728 int main(void){ $func(); }
729 EOF
730 }
731
732 check_mathfunc(){
733     log check_mathfunc "$@"
734     func=$1
735     shift
736     disable $func
737     check_ld "cc" "$@" <<EOF && enable $func
738 #include <math.h>
739 float foo(float f) { return $func(f); }
740 int main(void){ return (int) foo; }
741 EOF
742 }
743
744 check_func_headers(){
745     log check_func_headers "$@"
746     headers=$1
747     funcs=$2
748     shift 2
749     {
750         for hdr in $headers; do
751             echo "#include <$hdr>"
752         done
753         for func in $funcs; do
754             echo "long check_$func(void) { return (long) $func; }"
755         done
756         echo "int main(void) { return 0; }"
757     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
758 }
759
760 check_class_headers_cpp(){
761     log check_class_headers_cpp "$@"
762     headers=$1
763     classes=$2
764     shift 2
765     {
766         for hdr in $headers; do
767             echo "#include <$hdr>"
768         done
769         echo "int main(void) { "
770         i=1
771         for class in $classes; do
772             echo "$class obj$i;"
773             i=$(expr $i + 1)
774         done
775         echo "return 0; }"
776     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
777 }
778
779 check_cpp_condition(){
780     log check_cpp_condition "$@"
781     header=$1
782     condition=$2
783     shift 2
784     check_cpp $($filter_cppflags "$@") <<EOF
785 #include <$header>
786 #if !($condition)
787 #error "unsatisfied condition: $condition"
788 #endif
789 EOF
790 }
791
792 check_lib(){
793     log check_lib "$@"
794     header="$1"
795     func="$2"
796     shift 2
797     check_header $header && check_func $func "$@" && add_extralibs "$@"
798 }
799
800 check_lib2(){
801     log check_lib2 "$@"
802     headers="$1"
803     funcs="$2"
804     shift 2
805     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
806 }
807
808 check_lib_cpp(){
809     log check_lib_cpp "$@"
810     headers="$1"
811     classes="$2"
812     shift 2
813     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
814 }
815
816 check_pkg_config(){
817     log check_pkg_config "$@"
818     pkg="$1"
819     headers="$2"
820     funcs="$3"
821     shift 3
822     $pkg_config --exists $pkg 2>/dev/null || return
823     pkg_cflags=$($pkg_config --cflags $pkg)
824     pkg_libs=$($pkg_config --libs $pkg)
825     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
826         set_safe ${pkg}_cflags $pkg_cflags   &&
827         set_safe ${pkg}_libs   $pkg_libs
828 }
829
830 check_exec(){
831     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
832 }
833
834 check_exec_crash(){
835     code=$(cat)
836
837     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
838     # are safe but may not be available everywhere.  Thus we use
839     # raise(SIGTERM) instead.  The check is run in a subshell so we
840     # can redirect the "Terminated" message from the shell.  SIGBUS
841     # is not defined by standard C so it is used conditionally.
842
843     (check_exec "$@") >> $logfile 2>&1 <<EOF
844 #include <signal.h>
845 static void sighandler(int sig){
846     raise(SIGTERM);
847 }
848 int main(void){
849     signal(SIGILL, sighandler);
850     signal(SIGFPE, sighandler);
851     signal(SIGSEGV, sighandler);
852 #ifdef SIGBUS
853     signal(SIGBUS, sighandler);
854 #endif
855     { $code }
856 }
857 EOF
858 }
859
860 check_type(){
861     log check_type "$@"
862     headers=$1
863     type=$2
864     shift 2
865     disable_safe "$type"
866     incs=""
867     for hdr in $headers; do
868         incs="$incs
869 #include <$hdr>"
870     done
871     check_cc "$@" <<EOF && enable_safe "$type"
872 $incs
873 $type v;
874 EOF
875 }
876
877 check_struct(){
878     log check_type "$@"
879     headers=$1
880     struct=$2
881     member=$3
882     shift 3
883     disable_safe "${struct}_${member}"
884     incs=""
885     for hdr in $headers; do
886         incs="$incs
887 #include <$hdr>"
888     done
889     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
890 $incs
891 const void *p = &(($struct *)0)->$member;
892 EOF
893 }
894
895 require(){
896     name="$1"
897     header="$2"
898     func="$3"
899     shift 3
900     check_lib $header $func "$@" || die "ERROR: $name not found"
901 }
902
903 require2(){
904     name="$1"
905     headers="$2"
906     func="$3"
907     shift 3
908     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
909 }
910
911 require_cpp(){
912     name="$1"
913     headers="$2"
914     classes="$3"
915     shift 3
916     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
917 }
918
919 require_pkg_config(){
920     pkg="$1"
921     check_pkg_config "$@" || die "ERROR: $pkg not found"
922     add_cflags    $(get_safe ${pkg}_cflags)
923     add_extralibs $(get_safe ${pkg}_libs)
924 }
925
926 check_host_cc(){
927     log check_host_cc "$@"
928     cat > $TMPC
929     log_file $TMPC
930     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
931 }
932
933 check_host_cflags(){
934     log check_host_cflags "$@"
935     check_host_cc "$@" <<EOF && append host_cflags "$@"
936 int x;
937 EOF
938 }
939
940 apply(){
941     file=$1
942     shift
943     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
944 }
945
946 cp_if_changed(){
947     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
948     mkdir -p "$(dirname $2)"
949     cp -f "$1" "$2"
950 }
951
952 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
953 # system-dependent things.
954
955 COMPONENT_LIST="
956     bsfs
957     decoders
958     demuxers
959     encoders
960     filters
961     hwaccels
962     indevs
963     muxers
964     outdevs
965     parsers
966     protocols
967 "
968
969 CONFIG_LIST="
970     $COMPONENT_LIST
971     aandct
972     ac3dsp
973     avcodec
974     avdevice
975     avfilter
976     avformat
977     avisynth
978     bzlib
979     crystalhd
980     dct
981     doc
982     dwt
983     dxva2
984     fastdiv
985     ffmpeg
986     avconv
987     ffplay
988     ffprobe
989     ffserver
990     fft
991     frei0r
992     golomb
993     gpl
994     gray
995     h264dsp
996     h264pred
997     hardcoded_tables
998     huffman
999     libaacplus
1000     libcdio
1001     libcelt
1002     libdc1394
1003     libdirac
1004     libfaac
1005     libfreetype
1006     libgsm
1007     libmodplug
1008     libmp3lame
1009     libnut
1010     libopencore_amrnb
1011     libopencore_amrwb
1012     libopencv
1013     libopenjpeg
1014     librtmp
1015     libschroedinger
1016     libspeex
1017     libstagefright_h264
1018     libtheora
1019     libutvideo
1020     libvo_aacenc
1021     libvo_amrwbenc
1022     libvorbis
1023     libvpx
1024     libx264
1025     libxavs
1026     libxvid
1027     lpc
1028     lsp
1029     mdct
1030     memalign_hack
1031     mlib
1032     mpegaudiodsp
1033     network
1034     nonfree
1035     openal
1036     pic
1037     postproc
1038     rdft
1039     rtpdec
1040     runtime_cpudetect
1041     shared
1042     sinewin
1043     small
1044     sram
1045     static
1046     swresample
1047     swscale
1048     swscale_alpha
1049     thumb
1050     vaapi
1051     vdpau
1052     version3
1053     x11grab
1054     zlib
1055 "
1056
1057 THREADS_LIST='
1058     pthreads
1059     w32threads
1060 '
1061
1062 ARCH_LIST='
1063     alpha
1064     arm
1065     avr32
1066     avr32_ap
1067     avr32_uc
1068     bfin
1069     ia64
1070     m68k
1071     mips
1072     mips64
1073     parisc
1074     ppc
1075     ppc64
1076     s390
1077     sh4
1078     sparc
1079     sparc64
1080     tomi
1081     x86
1082     x86_32
1083     x86_64
1084 '
1085
1086 ARCH_EXT_LIST='
1087     altivec
1088     amd3dnow
1089     amd3dnowext
1090     armv5te
1091     armv6
1092     armv6t2
1093     armvfp
1094     avx
1095     iwmmxt
1096     mmi
1097     mmx
1098     mmx2
1099     neon
1100     ppc4xx
1101     sse
1102     ssse3
1103     vfpv3
1104     vis
1105 '
1106
1107 HAVE_LIST_PUB='
1108     bigendian
1109     fast_unaligned
1110 '
1111
1112 HAVE_LIST="
1113     $ARCH_EXT_LIST
1114     $HAVE_LIST_PUB
1115     $THREADS_LIST
1116     aligned_stack
1117     alsa_asoundlib_h
1118     altivec_h
1119     arpa_inet_h
1120     asm_mod_y
1121     attribute_may_alias
1122     attribute_packed
1123     bswap
1124     closesocket
1125     cmov
1126     dcbzl
1127     dev_bktr_ioctl_bt848_h
1128     dev_bktr_ioctl_meteor_h
1129     dev_ic_bt8xx_h
1130     dev_video_meteor_ioctl_meteor_h
1131     dev_video_bktr_ioctl_bt848_h
1132     dlfcn_h
1133     dlopen
1134     dos_paths
1135     ebp_available
1136     ebx_available
1137     exp2
1138     exp2f
1139     fast_64bit
1140     fast_clz
1141     fast_cmov
1142     fcntl
1143     fork
1144     getaddrinfo
1145     gethrtime
1146     GetProcessMemoryInfo
1147     GetProcessTimes
1148     getrusage
1149     gnu_as
1150     struct_rusage_ru_maxrss
1151     ibm_asm
1152     inet_aton
1153     inline_asm
1154     isatty
1155     kbhit
1156     ldbrx
1157     llrint
1158     llrintf
1159     local_aligned_16
1160     local_aligned_8
1161     localtime_r
1162     log2
1163     log2f
1164     loongson
1165     lrint
1166     lrintf
1167     lzo1x_999_compress
1168     machine_ioctl_bt848_h
1169     machine_ioctl_meteor_h
1170     malloc_h
1171     MapViewOfFile
1172     memalign
1173     mkstemp
1174     mmap
1175     PeekNamedPipe
1176     posix_memalign
1177     round
1178     roundf
1179     sdl
1180     sdl_video_size
1181     setmode
1182     sndio_h
1183     socklen_t
1184     soundcard_h
1185     poll_h
1186     setrlimit
1187     strerror_r
1188     strptime
1189     strtok_r
1190     struct_addrinfo
1191     struct_ipv6_mreq
1192     struct_sockaddr_in6
1193     struct_sockaddr_sa_len
1194     struct_sockaddr_storage
1195     symver
1196     symver_gnu_asm
1197     symver_asm_label
1198     sys_mman_h
1199     sys_resource_h
1200     sys_select_h
1201     sys_soundcard_h
1202     sys_videoio_h
1203     termios_h
1204     threads
1205     trunc
1206     truncf
1207     vfp_args
1208     VirtualAlloc
1209     winsock2_h
1210     xform_asm
1211     xmm_clobbers
1212     yasm
1213 "
1214
1215 # options emitted with CONFIG_ prefix but not available on command line
1216 CONFIG_EXTRA="
1217     avutil
1218     gplv3
1219     lgplv3
1220 "
1221
1222 CMDLINE_SELECT="
1223     $ARCH_EXT_LIST
1224     $CONFIG_LIST
1225     $THREADS_LIST
1226     asm
1227     cross_compile
1228     debug
1229     extra_warnings
1230     logging
1231     optimizations
1232     stripping
1233     symver
1234     yasm
1235 "
1236
1237 PATHS_LIST='
1238     bindir
1239     datadir
1240     incdir
1241     libdir
1242     mandir
1243     prefix
1244     shlibdir
1245 '
1246
1247 CMDLINE_SET="
1248     $PATHS_LIST
1249     ar
1250     arch
1251     as
1252     build_suffix
1253     progs_suffix
1254     cc
1255     cpu
1256     cross_prefix
1257     cxx
1258     dep_cc
1259     extra_version
1260     host_cc
1261     host_cflags
1262     host_ldflags
1263     host_libs
1264     host_os
1265     install
1266     ld
1267     logfile
1268     malloc_prefix
1269     nm
1270     optflags
1271     pkg_config
1272     samples
1273     strip
1274     sysinclude
1275     sysroot
1276     target_exec
1277     target_os
1278     target_path
1279 "
1280
1281 CMDLINE_APPEND="
1282     extra_cflags
1283     extra_cxxflags
1284 "
1285
1286 # code dependency declarations
1287
1288 # architecture extensions
1289
1290 armv5te_deps="arm"
1291 armv6_deps="arm"
1292 armv6t2_deps="arm"
1293 armvfp_deps="arm"
1294 iwmmxt_deps="arm"
1295 neon_deps="arm"
1296 vfpv3_deps="armvfp"
1297
1298 mmi_deps="mips"
1299
1300 altivec_deps="ppc"
1301 ppc4xx_deps="ppc"
1302
1303 vis_deps="sparc"
1304
1305 x86_64_suggest="cmov fast_cmov"
1306 amd3dnow_deps="mmx"
1307 amd3dnowext_deps="amd3dnow"
1308 mmx_deps="x86"
1309 mmx2_deps="mmx"
1310 sse_deps="mmx"
1311 ssse3_deps="sse"
1312 avx_deps="ssse3"
1313
1314 aligned_stack_if_any="ppc x86"
1315 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1316 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1317 fast_unaligned_if_any="armv6 ppc x86"
1318
1319 need_memalign="altivec neon sse"
1320 inline_asm_deps="!tms470"
1321
1322 symver_if_any="symver_asm_label symver_gnu_asm"
1323
1324 # subsystems
1325 dct_select="rdft"
1326 mdct_select="fft"
1327 rdft_select="fft"
1328 mpegaudiodsp_select="dct"
1329
1330 # decoders / encoders / hardware accelerators
1331 aac_decoder_select="mdct sinewin"
1332 aac_encoder_select="mdct sinewin"
1333 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1334 ac3_decoder_select="mdct ac3dsp ac3_parser"
1335 ac3_encoder_select="mdct ac3dsp"
1336 ac3_fixed_encoder_select="mdct ac3dsp"
1337 alac_encoder_select="lpc"
1338 amrnb_decoder_select="lsp"
1339 amrwb_decoder_select="lsp"
1340 atrac1_decoder_select="mdct sinewin"
1341 atrac3_decoder_select="mdct"
1342 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1343 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1344 cavs_decoder_select="golomb"
1345 cook_decoder_select="mdct sinewin"
1346 cscd_decoder_suggest="zlib"
1347 dca_decoder_select="mdct"
1348 dnxhd_encoder_select="aandct"
1349 dxa_decoder_select="zlib"
1350 eac3_decoder_select="ac3_decoder"
1351 eac3_encoder_select="mdct ac3dsp"
1352 eamad_decoder_select="aandct"
1353 eatgq_decoder_select="aandct"
1354 eatqi_decoder_select="aandct"
1355 ffv1_decoder_select="golomb"
1356 flac_decoder_select="golomb"
1357 flac_encoder_select="golomb lpc"
1358 flashsv_decoder_select="zlib"
1359 flashsv_encoder_select="zlib"
1360 flashsv2_encoder_select="zlib"
1361 flashsv2_decoder_select="zlib"
1362 flv_decoder_select="h263_decoder"
1363 flv_encoder_select="h263_encoder"
1364 fraps_decoder_select="huffman"
1365 h261_encoder_select="aandct"
1366 h263_decoder_select="h263_parser"
1367 h263_encoder_select="aandct"
1368 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1369 h263i_decoder_select="h263_decoder"
1370 h263p_encoder_select="h263_encoder"
1371 h264_decoder_select="golomb h264dsp h264pred"
1372 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1373 h264_dxva2_hwaccel_deps="dxva2api_h"
1374 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1375 h264_vaapi_hwaccel_select="vaapi"
1376 h264_vdpau_decoder_select="vdpau h264_decoder"
1377 imc_decoder_select="fft mdct sinewin"
1378 jpegls_decoder_select="golomb"
1379 jpegls_encoder_select="golomb"
1380 ljpeg_encoder_select="aandct"
1381 loco_decoder_select="golomb"
1382 mjpeg_encoder_select="aandct"
1383 mlp_decoder_select="mlp_parser"
1384 mp1_decoder_select="mpegaudiodsp"
1385 mp2_decoder_select="mpegaudiodsp"
1386 mp3adu_decoder_select="mpegaudiodsp"
1387 mp3_decoder_select="mpegaudiodsp"
1388 mp3on4_decoder_select="mpegaudiodsp"
1389 mp1float_decoder_select="mpegaudiodsp"
1390 mp2float_decoder_select="mpegaudiodsp"
1391 mp3adufloat_decoder_select="mpegaudiodsp"
1392 mp3float_decoder_select="mpegaudiodsp"
1393 mp3on4float_decoder_select="mpegaudiodsp"
1394 mpeg1video_encoder_select="aandct"
1395 mpeg2video_encoder_select="aandct"
1396 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1397 mpeg4_encoder_select="h263_encoder"
1398 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1399 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1400 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1401 mpeg2_crystalhd_decoder_select="crystalhd"
1402 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1403 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1404 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1405 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1406 mpeg4_crystalhd_decoder_select="crystalhd"
1407 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1408 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1409 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1410 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1411 msmpeg4_crystalhd_decoder_select="crystalhd"
1412 msmpeg4v1_decoder_select="h263_decoder"
1413 msmpeg4v1_encoder_select="h263_encoder"
1414 msmpeg4v2_decoder_select="h263_decoder"
1415 msmpeg4v2_encoder_select="h263_encoder"
1416 msmpeg4v3_decoder_select="h263_decoder"
1417 msmpeg4v3_encoder_select="h263_encoder"
1418 nellymoser_decoder_select="mdct sinewin"
1419 nellymoser_encoder_select="mdct sinewin"
1420 png_decoder_select="zlib"
1421 png_encoder_select="zlib"
1422 qcelp_decoder_select="lsp"
1423 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1424 ra_144_encoder_select="lpc"
1425 rv10_decoder_select="h263_decoder"
1426 rv10_encoder_select="h263_encoder"
1427 rv20_decoder_select="h263_decoder"
1428 rv20_encoder_select="h263_encoder"
1429 rv30_decoder_select="golomb h264pred"
1430 rv40_decoder_select="golomb h264pred"
1431 shorten_decoder_select="golomb"
1432 sipr_decoder_select="lsp"
1433 snow_decoder_select="dwt"
1434 snow_encoder_select="aandct dwt"
1435 sonic_decoder_select="golomb"
1436 sonic_encoder_select="golomb"
1437 sonic_ls_encoder_select="golomb"
1438 svq1_encoder_select="aandct"
1439 svq3_decoder_select="golomb h264dsp h264pred"
1440 svq3_decoder_suggest="zlib"
1441 theora_decoder_select="vp3_decoder"
1442 tiff_decoder_suggest="zlib"
1443 tiff_encoder_suggest="zlib"
1444 truehd_decoder_select="mlp_decoder"
1445 tscc_decoder_select="zlib"
1446 twinvq_decoder_select="mdct lsp sinewin"
1447 vc1_decoder_select="h263_decoder"
1448 vc1_crystalhd_decoder_select="crystalhd"
1449 vc1_dxva2_hwaccel_deps="dxva2api_h"
1450 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1451 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1452 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1453 vc1image_decoder_select="vc1_decoder"
1454 vorbis_decoder_select="mdct"
1455 vorbis_encoder_select="mdct"
1456 vp6_decoder_select="huffman"
1457 vp6a_decoder_select="vp6_decoder"
1458 vp6f_decoder_select="vp6_decoder"
1459 vp8_decoder_select="h264pred"
1460 wmapro_decoder_select="mdct sinewin"
1461 wmav1_decoder_select="mdct sinewin"
1462 wmav1_encoder_select="mdct sinewin"
1463 wmav2_decoder_select="mdct sinewin"
1464 wmav2_encoder_select="mdct sinewin"
1465 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1466 wmv1_decoder_select="h263_decoder"
1467 wmv1_encoder_select="h263_encoder"
1468 wmv2_decoder_select="h263_decoder"
1469 wmv2_encoder_select="h263_encoder"
1470 wmv3_decoder_select="vc1_decoder"
1471 wmv3_crystalhd_decoder_select="crystalhd"
1472 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1473 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1474 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1475 wmv3image_decoder_select="wmv3_decoder"
1476 zlib_decoder_select="zlib"
1477 zlib_encoder_select="zlib"
1478 zmbv_decoder_select="zlib"
1479 zmbv_encoder_select="zlib"
1480
1481 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1482 vaapi_deps="va_va_h"
1483 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1484
1485 # parsers
1486 h264_parser_select="golomb h264dsp h264pred"
1487
1488 # external libraries
1489 libaacplus_encoder_deps="libaacplus"
1490 libcelt_decoder_deps="libcelt"
1491 libdirac_decoder_deps="libdirac !libschroedinger"
1492 libdirac_encoder_deps="libdirac"
1493 libfaac_encoder_deps="libfaac"
1494 libgsm_decoder_deps="libgsm"
1495 libgsm_encoder_deps="libgsm"
1496 libgsm_ms_decoder_deps="libgsm"
1497 libgsm_ms_encoder_deps="libgsm"
1498 libmodplug_demuxer_deps="libmodplug"
1499 libmp3lame_encoder_deps="libmp3lame"
1500 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1501 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1502 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1503 libopenjpeg_decoder_deps="libopenjpeg"
1504 libschroedinger_decoder_deps="libschroedinger"
1505 libschroedinger_encoder_deps="libschroedinger"
1506 libspeex_decoder_deps="libspeex"
1507 libspeex_encoder_deps="libspeex"
1508 libstagefright_h264_decoder_deps="libstagefright_h264"
1509 libtheora_encoder_deps="libtheora"
1510 libvo_aacenc_encoder_deps="libvo_aacenc"
1511 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1512 libvorbis_encoder_deps="libvorbis"
1513 libvpx_decoder_deps="libvpx"
1514 libvpx_encoder_deps="libvpx"
1515 libx264_encoder_deps="libx264"
1516 libxavs_encoder_deps="libxavs"
1517 libxvid_encoder_deps="libxvid"
1518 libutvideo_decoder_deps="libutvideo gpl"
1519
1520 # demuxers / muxers
1521 ac3_demuxer_select="ac3_parser"
1522 asf_stream_muxer_select="asf_muxer"
1523 avisynth_demuxer_deps="avisynth"
1524 dirac_demuxer_select="dirac_parser"
1525 eac3_demuxer_select="ac3_parser"
1526 flac_demuxer_select="flac_parser"
1527 ipod_muxer_select="mov_muxer"
1528 libnut_demuxer_deps="libnut"
1529 libnut_muxer_deps="libnut"
1530 matroska_audio_muxer_select="matroska_muxer"
1531 matroska_demuxer_suggest="zlib bzlib"
1532 mov_demuxer_suggest="zlib"
1533 mp3_demuxer_select="mpegaudio_parser"
1534 mp4_muxer_select="mov_muxer"
1535 mpegtsraw_demuxer_select="mpegts_demuxer"
1536 mxf_d10_muxer_select="mxf_muxer"
1537 ogg_demuxer_select="golomb"
1538 psp_muxer_select="mov_muxer"
1539 rtp_demuxer_select="sdp_demuxer"
1540 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1541 rtsp_demuxer_select="http_protocol rtpdec"
1542 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1543 sap_demuxer_select="sdp_demuxer"
1544 sap_muxer_select="rtp_muxer rtp_protocol"
1545 sdp_demuxer_select="rtpdec"
1546 spdif_muxer_select="aac_parser"
1547 tg2_muxer_select="mov_muxer"
1548 tgp_muxer_select="mov_muxer"
1549 w64_demuxer_deps="wav_demuxer"
1550
1551 # indevs / outdevs
1552 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1553 alsa_outdev_deps="alsa_asoundlib_h"
1554 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1555 dshow_indev_deps="IBaseFilter"
1556 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1557 dv1394_indev_deps="dv1394 dv_demuxer"
1558 fbdev_indev_deps="linux_fb_h"
1559 jack_indev_deps="jack_jack_h sem_timedwait"
1560 lavfi_indev_deps="avfilter"
1561 libcdio_indev_deps="libcdio"
1562 libdc1394_indev_deps="libdc1394"
1563 openal_indev_deps="openal"
1564 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1565 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1566 sdl_outdev_deps="sdl"
1567 sndio_indev_deps="sndio_h"
1568 sndio_outdev_deps="sndio_h"
1569 v4l_indev_deps="linux_videodev_h"
1570 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1571 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1572 vfwcap_indev_extralibs="-lavicap32"
1573 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1574 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1575
1576 # protocols
1577 gopher_protocol_deps="network"
1578 http_protocol_deps="network"
1579 http_protocol_select="tcp_protocol"
1580 mmsh_protocol_select="http_protocol"
1581 mmst_protocol_deps="network"
1582 rtmp_protocol_select="tcp_protocol"
1583 rtp_protocol_select="udp_protocol"
1584 tcp_protocol_deps="network"
1585 udp_protocol_deps="network"
1586
1587 # filters
1588 abuffer_filter_deps="strtok_r"
1589 aconvert_filter_deps="strtok_r"
1590 aformat_filter_deps="strtok_r"
1591 amovie_filter_deps="avcodec avformat"
1592 blackframe_filter_deps="gpl"
1593 boxblur_filter_deps="gpl"
1594 cropdetect_filter_deps="gpl"
1595 delogo_filter_deps="gpl"
1596 drawtext_filter_deps="libfreetype"
1597 frei0r_filter_deps="frei0r dlopen strtok_r"
1598 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1599 hqdn3d_filter_deps="gpl"
1600 movie_filter_deps="avcodec avformat"
1601 mp_filter_deps="gpl avcodec"
1602 mptestsrc_filter_deps="gpl"
1603 negate_filter_deps="lut_filter"
1604 ocv_filter_deps="libopencv"
1605 scale_filter_deps="swscale"
1606 yadif_filter_deps="gpl"
1607
1608 # libraries
1609 avdevice_deps="avcodec avformat"
1610 avformat_deps="avcodec"
1611 postproc_deps="gpl"
1612
1613 # programs
1614 ffmpeg_deps="avcodec avformat swscale swresample"
1615 ffmpeg_select="buffer_filter buffersink_filter"
1616 avconv_deps="avcodec avformat swscale"
1617 avconv_select="buffer_filter"
1618 ffplay_deps="avcodec avformat swscale sdl"
1619 ffplay_select="buffersink_filter rdft"
1620 ffprobe_deps="avcodec avformat"
1621 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1622 ffserver_extralibs='$ldl'
1623
1624 doc_deps="texi2html"
1625
1626 # tests
1627
1628 test_deps(){
1629     suf1=$1
1630     suf2=$2
1631     shift 2
1632     for v; do
1633         dep=${v%=*}
1634         tests=${v#*=}
1635         for name in ${tests}; do
1636             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1637         done
1638     done
1639 }
1640
1641 mxf_d10_test_deps="avfilter"
1642 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1643
1644 test_deps _encoder _decoder                                             \
1645     adpcm_g726=g726                                                     \
1646     adpcm_ima_qt                                                        \
1647     adpcm_ima_wav                                                       \
1648     adpcm_ms                                                            \
1649     adpcm_swf                                                           \
1650     adpcm_yamaha=adpcm_yam                                              \
1651     alac                                                                \
1652     asv1                                                                \
1653     asv2                                                                \
1654     bmp                                                                 \
1655     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1656     dvvideo="dv dv50"                                                   \
1657     ffv1                                                                \
1658     flac                                                                \
1659     flashsv                                                             \
1660     flv                                                                 \
1661     gif                                                                 \
1662     h261                                                                \
1663     h263="h263 h263p"                                                   \
1664     huffyuv                                                             \
1665     jpegls                                                              \
1666     mjpeg="jpg mjpeg ljpeg"                                             \
1667     mp2                                                                 \
1668     mpeg1video="mpeg mpeg1b"                                            \
1669     mpeg2video="mpeg2 mpeg2thread"                                      \
1670     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1671     msmpeg4v3=msmpeg4                                                   \
1672     msmpeg4v2                                                           \
1673     pbm=pbmpipe                                                         \
1674     pcx                                                                 \
1675     pgm="pgm pgmpipe"                                                   \
1676     png                                                                 \
1677     ppm="ppm ppmpipe"                                                   \
1678     rawvideo="rgb yuv"                                                  \
1679     roq                                                                 \
1680     rv10                                                                \
1681     rv20                                                                \
1682     sgi                                                                 \
1683     snow="snow snowll"                                                  \
1684     svq1                                                                \
1685     targa=tga                                                           \
1686     tiff                                                                \
1687     wmav1                                                               \
1688     wmav2                                                               \
1689     wmv1                                                                \
1690     wmv2                                                                \
1691
1692 test_deps _muxer _demuxer                                               \
1693     aiff                                                                \
1694     pcm_alaw=alaw                                                       \
1695     asf                                                                 \
1696     au                                                                  \
1697     avi                                                                 \
1698     dv=dv_fmt                                                           \
1699     ffm                                                                 \
1700     flv=flv_fmt                                                         \
1701     gxf                                                                 \
1702     matroska=mkv                                                        \
1703     mmf                                                                 \
1704     mov                                                                 \
1705     pcm_mulaw=mulaw                                                     \
1706     mxf="mxf mxf_d10"                                                   \
1707     nut                                                                 \
1708     ogg                                                                 \
1709     rawvideo=pixfmt                                                     \
1710     rm                                                                  \
1711     swf                                                                 \
1712     mpegts=ts                                                           \
1713     voc                                                                 \
1714     wav                                                                 \
1715     yuv4mpegpipe=yuv4mpeg                                               \
1716
1717 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1718 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1719
1720 # default parameters
1721
1722 logfile="config.log"
1723
1724 # installation paths
1725 prefix_default="/usr/local"
1726 bindir_default='${prefix}/bin'
1727 datadir_default='${prefix}/share/ffmpeg'
1728 incdir_default='${prefix}/include'
1729 libdir_default='${prefix}/lib'
1730 mandir_default='${prefix}/share/man'
1731 shlibdir_default="$libdir_default"
1732
1733 # toolchain
1734 ar_default="ar"
1735 cc_default="gcc"
1736 cxx_default="g++"
1737 cc_version=\"unknown\"
1738 host_cc_default="gcc"
1739 install="install"
1740 ln_s="ln -sf"
1741 nm_default="nm"
1742 objformat="elf"
1743 pkg_config_default=pkg-config
1744 ranlib="ranlib"
1745 strip_default="strip"
1746 yasmexe="yasm"
1747 nogas=":"
1748
1749 nm_opts='-g'
1750
1751 # machine
1752 arch_default=$(uname -m)
1753 cpu="generic"
1754
1755 # OS
1756 target_os_default=$(tolower $(uname -s))
1757 host_os=$target_os_default
1758
1759 # configurable options
1760 enable avcodec
1761 enable avdevice
1762 enable avfilter
1763 enable avformat
1764 enable avutil
1765 enable asm
1766 enable debug
1767 enable doc
1768 enable fastdiv
1769 enable ffmpeg
1770 enable avconv
1771 enable ffplay
1772 enable ffprobe
1773 enable ffserver
1774 enable network
1775 enable optimizations
1776 enable postproc
1777 enable protocols
1778 enable static
1779 enable stripping
1780 enable swresample
1781 enable swscale
1782 enable swscale_alpha
1783
1784 # build settings
1785 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1786 FFSERVERLDFLAGS=-Wl,-E
1787 LIBPREF="lib"
1788 LIBSUF=".a"
1789 FULLNAME='$(NAME)$(BUILDSUF)'
1790 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1791 SLIBPREF="lib"
1792 SLIBSUF=".so"
1793 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1794 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1795 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1796 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1797 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1798 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1799
1800 AS_O='-o $@'
1801 CC_O='-o $@'
1802 CXX_O='-o $@'
1803
1804 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1805 host_libs='-lm'
1806
1807 target_path='$(CURDIR)'
1808
1809 # since the object filename is not given with the -MM flag, the compiler
1810 # is only able to print the basename, and we must add the path ourselves
1811 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1812 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1813
1814 # find source path
1815 if test -f configure; then
1816     source_path=.
1817 else
1818     source_path=$(cd $(dirname "$0"); pwd)
1819     echo "$source_path" | grep -q '[[:blank:]]' &&
1820         die "Out of tree builds are impossible with whitespace in source path."
1821     test -e "$source_path/config.h" &&
1822         die "Out of tree builds are impossible with config.h in source dir."
1823 fi
1824
1825 for v in "$@"; do
1826     r=${v#*=}
1827     l=${v%"$r"}
1828     r=$(sh_quote "$r")
1829     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1830 done
1831
1832 find_things(){
1833     thing=$1
1834     pattern=$2
1835     file=$source_path/$3
1836     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1837 }
1838
1839 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1840 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1841 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1842 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1843 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1844 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1845 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1846 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1847 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1848 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1849 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1850
1851 find_tests(){
1852     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1853 }
1854
1855 ACODEC_TESTS=$(find_tests acodec)
1856 VCODEC_TESTS=$(find_tests vsynth1)
1857 LAVF_TESTS=$(find_tests lavf)
1858 LAVFI_TESTS=$(find_tests lavfi)
1859 SEEK_TESTS=$(find_tests seek seek_)
1860
1861 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1862
1863 for n in $COMPONENT_LIST; do
1864     v=$(toupper ${n%s})_LIST
1865     eval enable \$$v
1866     eval ${n}_if_any="\$$v"
1867 done
1868
1869 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1870
1871 die_unknown(){
1872     echo "Unknown option \"$1\"."
1873     echo "See $0 --help for available options."
1874     exit 1
1875 }
1876
1877 show_list() {
1878     suffix=_$1
1879     shift
1880     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1881     exit 0
1882 }
1883
1884 for opt do
1885     optval="${opt#*=}"
1886     case "$opt" in
1887     --extra-ldflags=*) add_ldflags $optval
1888     ;;
1889     --extra-libs=*) add_extralibs $optval
1890     ;;
1891     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1892     ;;
1893     --enable-debug=*) debuglevel="$optval"
1894     ;;
1895     --disable-everything)
1896     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1897     ;;
1898     --enable-*=*|--disable-*=*)
1899     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1900     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1901     eval list=\$$(toupper $thing)_LIST
1902     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1903     $action $(filter "$name" $list)
1904     ;;
1905     --enable-?*|--disable-?*)
1906     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1907     if is_in $option $COMPONENT_LIST; then
1908         test $action = disable && action=unset
1909         eval $action \$$(toupper ${option%s})_LIST
1910     elif is_in $option $CMDLINE_SELECT; then
1911         $action $option
1912     else
1913         die_unknown $opt
1914     fi
1915     ;;
1916     --list-*)
1917         NAME="${opt#--list-}"
1918         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1919         NAME=${NAME%s}
1920         eval show_list $NAME \$$(toupper $NAME)_LIST
1921     ;;
1922     --help|-h) show_help
1923     ;;
1924     *)
1925     optname="${opt%%=*}"
1926     optname="${optname#--}"
1927     optname=$(echo "$optname" | sed 's/-/_/g')
1928     if is_in $optname $CMDLINE_SET; then
1929         eval $optname='$optval'
1930     elif is_in $optname $CMDLINE_APPEND; then
1931         append $optname "$optval"
1932     else
1933          die_unknown $opt
1934     fi
1935     ;;
1936     esac
1937 done
1938
1939 disabled logging && logfile=/dev/null
1940
1941 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1942 set >> $logfile
1943
1944 test -n "$cross_prefix" && enable cross_compile
1945
1946 if enabled cross_compile; then
1947     test -n "$arch" && test -n "$target_os" ||
1948         die "Must specify target arch and OS when cross-compiling"
1949 fi
1950
1951 set_default arch target_os
1952
1953 ar_default="${cross_prefix}${ar_default}"
1954 cc_default="${cross_prefix}${cc_default}"
1955 cxx_default="${cross_prefix}${cxx_default}"
1956 nm_default="${cross_prefix}${nm_default}"
1957 pkg_config_default="${cross_prefix}${pkg_config_default}"
1958 ranlib="${cross_prefix}${ranlib}"
1959 strip_default="${cross_prefix}${strip_default}"
1960
1961 sysinclude_default="${sysroot}/usr/include"
1962
1963 set_default cc cxx nm pkg_config strip sysinclude
1964 enabled cross_compile || host_cc_default=$cc
1965 set_default host_cc
1966
1967 if ! $pkg_config --version >/dev/null 2>&1; then
1968     warn "$pkg_config not found, library detection may fail."
1969     pkg_config=false
1970 fi
1971
1972 exesuf() {
1973     case $1 in
1974         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1975     esac
1976 }
1977
1978 EXESUF=$(exesuf $target_os)
1979 HOSTEXESUF=$(exesuf $host_os)
1980
1981 # set temporary file name
1982 : ${TMPDIR:=$TEMPDIR}
1983 : ${TMPDIR:=$TMP}
1984 : ${TMPDIR:=/tmp}
1985
1986 if ! check_cmd mktemp -u XXXXXX; then
1987     # simple replacement for missing mktemp
1988     # NOT SAFE FOR GENERAL USE
1989     mktemp(){
1990         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1991     }
1992 fi
1993
1994 tmpfile(){
1995     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1996         (set -C; exec > $tmp) 2>/dev/null ||
1997         die "Unable to create temporary file in $TMPDIR."
1998     append TMPFILES $tmp
1999     eval $1=$tmp
2000 }
2001
2002 trap 'rm -f -- $TMPFILES' EXIT
2003
2004 tmpfile TMPC  .c
2005 tmpfile TMPCPP .cpp
2006 tmpfile TMPE  $EXESUF
2007 tmpfile TMPH  .h
2008 tmpfile TMPO  .o
2009 tmpfile TMPS  .S
2010 tmpfile TMPV  .ver
2011 tmpfile TMPSH .sh
2012 tmpfile TMPASM .asm
2013
2014 unset -f mktemp
2015
2016 chmod +x $TMPE
2017
2018 # make sure we can execute files in $TMPDIR
2019 cat > $TMPSH 2>> $logfile <<EOF
2020 #! /bin/sh
2021 EOF
2022 chmod +x $TMPSH >> $logfile 2>&1
2023 if ! $TMPSH >> $logfile 2>&1; then
2024     cat <<EOF
2025 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2026 variable to another directory and make sure that it is not mounted noexec.
2027 EOF
2028     die "Sanity test failed."
2029 fi
2030
2031 filter_cflags=echo
2032 filter_cppflags=echo
2033 filter_asflags=echo
2034
2035 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2036     cc_type=llvm_gcc
2037     cc_version=__VERSION__
2038     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2039     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2040     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2041     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2042     speed_cflags='-O3'
2043     size_cflags='-Os'
2044 elif $cc -v 2>&1 | grep -qi ^gcc; then
2045     cc_type=gcc
2046     cc_version=__VERSION__
2047     gcc_version=$($cc --version | head -n1)
2048     gcc_basever=$($cc -dumpversion)
2049     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2050     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2051     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2052     if ! $cc -dumpversion | grep -q '^2\.'; then
2053         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2054         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2055     fi
2056     speed_cflags='-O3'
2057     size_cflags='-Os'
2058 elif $cc --version 2>/dev/null | grep -q Intel; then
2059     cc_type=icc
2060     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2061     cc_ident=$($cc --version | head -n1)
2062     icc_version=$($cc -dumpversion)
2063     CC_DEPFLAGS='-MMD'
2064     AS_DEPFLAGS='-MMD'
2065     speed_cflags='-O3'
2066     size_cflags='-Os'
2067     noopt_cflags='-O1'
2068 elif $cc -v 2>&1 | grep -q xlc; then
2069     cc_type=xlc
2070     cc_version="AV_STRINGIFY(__IBMC__)"
2071     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2072     speed_cflags='-O5'
2073     size_cflags='-O5 -qcompact'
2074 elif $cc -V 2>/dev/null | grep -q Compaq; then
2075     cc_type=ccc
2076     cc_version="AV_STRINGIFY(__DECC_VER)"
2077     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2078     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2079     debuglevel=3
2080     add_ldflags -Wl,-z,now # calls to libots crash without this
2081     speed_cflags='-fast'
2082     size_cflags='-O1'
2083 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2084     test -d "$sysroot" || die "No valid sysroot specified."
2085     cc_type=armcc
2086     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2087     cc_ident=$($cc --vsn | head -n1)
2088     armcc_conf="$PWD/armcc.conf"
2089     $cc --arm_linux_configure                 \
2090         --arm_linux_config_file="$armcc_conf" \
2091         --configure_sysroot="$sysroot"        \
2092         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2093         die "Error creating armcc configuration file."
2094     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2095     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2096     as_default="${cross_prefix}gcc"
2097     CC_DEPFLAGS='-MMD'
2098     AS_DEPFLAGS='-MMD'
2099     speed_cflags='-O3'
2100     size_cflags='-Os'
2101     filter_asflags="filter_out -W${armcc_opt}*"
2102 elif $cc -version 2>/dev/null | grep -q TMS470; then
2103     cc_type=tms470
2104     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2105     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2106     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2107     CC_O='-fr=$(@D)'
2108     as_default="${cross_prefix}gcc"
2109     ld_default="${cross_prefix}gcc"
2110     TMPO=$(basename $TMPC .c).o
2111     append TMPFILES $TMPO
2112     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2113     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2114     AS_DEPFLAGS='-MMD'
2115     speed_cflags='-O3 -mf=5'
2116     size_cflags='-O3 -mf=2'
2117     filter_cflags=tms470_flags
2118     tms470_flags(){
2119         for flag; do
2120             case $flag in
2121                 -march=*|-mcpu=*)
2122                     case "${flag#*=}" in
2123                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2124                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2125                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2126                         armv6*|arm11*)          echo -mv=6   ;;
2127                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2128                                                 echo -mv=5e  ;;
2129                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2130                     esac
2131                     ;;
2132                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2133                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2134                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2135                 -msoft-float)   echo --float_support=vfplib       ;;
2136                 -O[0-3]|-mf=*)  echo $flag                        ;;
2137                 -g)             echo -g -mn                       ;;
2138                 -pds=*)         echo $flag                        ;;
2139             esac
2140         done
2141     }
2142 elif $cc -v 2>&1 | grep -q clang; then
2143     cc_type=clang
2144     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2145         cc_version=__clang_version__ || cc_version=__VERSION__
2146     cc_ident=$($cc --version | head -n1)
2147     CC_DEPFLAGS='-MMD'
2148     AS_DEPFLAGS='-MMD'
2149     speed_cflags='-O3'
2150     size_cflags='-Os'
2151 elif $cc -V 2>&1 | grep -q Sun; then
2152     cc_type=suncc
2153     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2154     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2155     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2156     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2157     add_ldflags -xc99
2158     speed_cflags='-O5'
2159     size_cflags='-O5 -xspace'
2160     filter_cflags=suncc_flags
2161     suncc_flags(){
2162         for flag; do
2163             case $flag in
2164                 -march=*|-mcpu=*)
2165                     case "${flag#*=}" in
2166                         native)                   echo -xtarget=native       ;;
2167                         v9|niagara)               echo -xarch=sparc          ;;
2168                         ultrasparc)               echo -xarch=sparcvis       ;;
2169                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2170                         i586|pentium)             echo -xchip=pentium        ;;
2171                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2172                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2173                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2174                         pentium4*)          echo -xtarget=pentium4           ;;
2175                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2176                         *-sse3)             echo -xarch=sse3                 ;;
2177                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2178                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2179                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2180                         k8|opteron|athlon64|athlon-fx)
2181                                                   echo -xarch=sse2a          ;;
2182                         athlon*)                  echo -xarch=pentium_proa   ;;
2183                     esac
2184                     ;;
2185                 -std=c99)             echo -xc99              ;;
2186                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2187                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2188                 -W*,*)                echo $flag              ;;
2189                 -f*-*|-W*)                                    ;;
2190                 *)                    echo $flag              ;;
2191             esac
2192         done
2193     }
2194 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2195     cc_type=pathscale
2196     cc_version=__PATHSCALE__
2197     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2198     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2199     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2200     speed_cflags='-O2'
2201     size_cflags='-Os'
2202     filter_cflags='filter_out -Wdisabled-optimization'
2203 elif $cc -v 2>&1 | grep -q Open64; then
2204     cc_type=open64
2205     cc_version=__OPEN64__
2206     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2207     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2208     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2209     speed_cflags='-O2'
2210     size_cflags='-Os'
2211     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2212 fi
2213
2214 test -n "$cc_type" && enable $cc_type ||
2215     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2216
2217 : ${as_default:=$cc}
2218 : ${dep_cc_default:=$cc}
2219 : ${ld_default:=$cc}
2220 set_default ar as dep_cc ld
2221
2222 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2223 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2224 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2225
2226 add_cflags $extra_cflags
2227 add_cxxflags $extra_cxxflags
2228 add_asflags $extra_cflags
2229
2230 if test -n "$sysroot"; then
2231     case "$cc_type" in
2232         gcc|llvm_gcc|clang)
2233             add_cppflags --sysroot="$sysroot"
2234             add_ldflags --sysroot="$sysroot"
2235         ;;
2236         tms470)
2237             add_cppflags -I"$sysinclude"
2238             add_ldflags  --sysroot="$sysroot"
2239         ;;
2240     esac
2241 fi
2242
2243 if test "$cpu" = host; then
2244     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2245
2246     case "$cc_type" in
2247         gcc|llvm_gcc)
2248             check_native(){
2249                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2250                 sed -n "/cc1.*$1=/{
2251                             s/.*$1=\\([^ ]*\\).*/\\1/
2252                             p
2253                             q
2254                         }" $TMPE
2255             }
2256             cpu=$(check_native -march || check_native -mcpu)
2257         ;;
2258     esac
2259
2260     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2261 fi
2262
2263 # Deal with common $arch aliases
2264 case "$arch" in
2265     arm*)
2266         arch="arm"
2267     ;;
2268     mips|mipsel|IP*)
2269         arch="mips"
2270     ;;
2271     mips64*)
2272         arch="mips"
2273         subarch="mips64"
2274     ;;
2275     parisc|hppa)
2276         arch="parisc"
2277     ;;
2278     parisc64|hppa64)
2279         arch="parisc"
2280         subarch="parisc64"
2281     ;;
2282     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2283         arch="ppc"
2284     ;;
2285     s390|s390x)
2286         arch="s390"
2287     ;;
2288     sh4|sh)
2289         arch="sh4"
2290     ;;
2291     sun4u|sparc64)
2292         arch="sparc"
2293         subarch="sparc64"
2294     ;;
2295     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2296         arch="x86"
2297     ;;
2298 esac
2299
2300 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2301 enable $arch
2302
2303 # Add processor-specific flags
2304 if test "$cpu" = generic; then
2305     : do nothing
2306 elif enabled ppc; then
2307
2308     case $(tolower $cpu) in
2309         601|ppc601|powerpc601)
2310             cpuflags="-mcpu=601"
2311             disable altivec
2312         ;;
2313         603*|ppc603*|powerpc603*)
2314             cpuflags="-mcpu=603"
2315             disable altivec
2316         ;;
2317         604*|ppc604*|powerpc604*)
2318             cpuflags="-mcpu=604"
2319             disable altivec
2320         ;;
2321         g3|75*|ppc75*|powerpc75*)
2322             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2323             disable altivec
2324         ;;
2325         g4|745*|ppc745*|powerpc745*)
2326             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2327         ;;
2328         74*|ppc74*|powerpc74*)
2329             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2330         ;;
2331         g5|970|ppc970|powerpc970|power4*)
2332             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2333         ;;
2334         cell)
2335             cpuflags="-mcpu=cell"
2336             enable ldbrx
2337         ;;
2338         e500v2)
2339             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2340             disable altivec
2341         ;;
2342         e500)
2343             cpuflags="-mcpu=8540 -mhard-float"
2344             disable altivec
2345         ;;
2346     esac
2347
2348 elif enabled x86; then
2349
2350     case $cpu in
2351         i[345]86|pentium)
2352             cpuflags="-march=$cpu"
2353             disable mmx
2354         ;;
2355         # targets that do NOT support conditional mov (cmov)
2356         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2357             cpuflags="-march=$cpu"
2358             disable cmov
2359         ;;
2360         # targets that do support conditional mov (cmov)
2361         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2362             cpuflags="-march=$cpu"
2363             enable cmov
2364             enable fast_cmov
2365         ;;
2366         # targets that do support conditional mov but on which it's slow
2367         pentium4|pentium4m|prescott|nocona)
2368             cpuflags="-march=$cpu"
2369             enable cmov
2370             disable fast_cmov
2371         ;;
2372     esac
2373
2374 elif enabled sparc; then
2375
2376     case $cpu in
2377         niagara)
2378             cpuflags="-mcpu=$cpu"
2379             disable vis
2380         ;;
2381         sparc64)
2382             cpuflags="-mcpu=v9"
2383         ;;
2384     esac
2385
2386 elif enabled arm; then
2387
2388     case $cpu in
2389         armv*)
2390             cpuflags="-march=$cpu"
2391             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2392         ;;
2393         *)
2394             cpuflags="-mcpu=$cpu"
2395             case $cpu in
2396                 cortex-a*)                               subarch=armv7a  ;;
2397                 cortex-r*)                               subarch=armv7r  ;;
2398                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2399                 arm11*)                                  subarch=armv6   ;;
2400                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2401                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2402             esac
2403         ;;
2404     esac
2405
2406 elif enabled alpha; then
2407
2408     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2409
2410 elif enabled bfin; then
2411
2412     cpuflags="-mcpu=$cpu"
2413
2414 elif enabled mips; then
2415
2416     cpuflags="-march=$cpu"
2417
2418 elif enabled avr32; then
2419
2420     case $cpu in
2421         ap7[02]0[0-2])
2422             subarch="avr32_ap"
2423             cpuflags="-mpart=$cpu"
2424         ;;
2425         ap)
2426             subarch="avr32_ap"
2427             cpuflags="-march=$cpu"
2428         ;;
2429         uc3[ab]*)
2430             subarch="avr32_uc"
2431             cpuflags="-mcpu=$cpu"
2432         ;;
2433         uc)
2434             subarch="avr32_uc"
2435             cpuflags="-march=$cpu"
2436         ;;
2437     esac
2438
2439 fi
2440
2441 add_cflags $cpuflags
2442 add_asflags $cpuflags
2443
2444 # compiler sanity check
2445 check_exec <<EOF
2446 int main(void){ return 0; }
2447 EOF
2448 if test "$?" != 0; then
2449     echo "$cc is unable to create an executable file."
2450     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2451         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2452         echo "Only do this if you know what cross compiling means."
2453     fi
2454     die "C compiler test failed."
2455 fi
2456
2457 add_cppflags -D_ISOC99_SOURCE
2458 add_cxxflags -D__STDC_CONSTANT_MACROS
2459 check_cflags -std=c99
2460 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2461 #include <stdlib.h>
2462 EOF
2463 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2464 #include <stdlib.h>
2465 EOF
2466
2467 check_host_cflags -std=c99
2468 check_host_cflags -Wall
2469
2470 case "$arch" in
2471     alpha|ia64|mips|parisc|sparc)
2472         spic=$shared
2473     ;;
2474     x86)
2475         subarch="x86_32"
2476         check_cc <<EOF && subarch="x86_64"
2477         int test[(int)sizeof(char*) - 7];
2478 EOF
2479         if test "$subarch" = "x86_64"; then
2480             spic=$shared
2481         fi
2482     ;;
2483     ppc)
2484         check_cc <<EOF && subarch="ppc64"
2485         int test[(int)sizeof(char*) - 7];
2486 EOF
2487     ;;
2488 esac
2489
2490 enable $subarch
2491 enabled spic && enable pic
2492
2493 # OS specific
2494 case $target_os in
2495     haiku)
2496         prefix_default="/boot/common"
2497         network_extralibs="-lnetwork"
2498         host_libs=
2499         ;;
2500     sunos)
2501         FFSERVERLDFLAGS=""
2502         SHFLAGS='-shared -Wl,-h,$$(@F)'
2503         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2504         network_extralibs="-lsocket -lnsl"
2505         add_cppflags -D__EXTENSIONS__
2506         # When using suncc to build, the Solaris linker will mark
2507         # an executable with each instruction set encountered by
2508         # the Solaris assembler.  As our libraries contain their own
2509         # guards for processor-specific code, instead suppress
2510         # generation of the HWCAPS ELF section on Solaris x86 only.
2511         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2512         nm_opts='-P -g'
2513         ;;
2514     netbsd)
2515         disable symver
2516         oss_indev_extralibs="-lossaudio"
2517         oss_outdev_extralibs="-lossaudio"
2518         ;;
2519     openbsd)
2520         enable malloc_aligned
2521         # On OpenBSD 4.5. the compiler does not use PIC unless
2522         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2523         # however the generated executable will not do anything
2524         # (simply quits with exit-code 1, no crash, no output).
2525         # Thus explicitly enable PIC here.
2526         enable pic
2527         disable symver
2528         SHFLAGS='-shared'
2529         oss_indev_extralibs="-lossaudio"
2530         oss_outdev_extralibs="-lossaudio"
2531         ;;
2532     dragonfly)
2533         enable malloc_aligned
2534         disable symver
2535         ;;
2536     freebsd)
2537         enable malloc_aligned
2538         ;;
2539     bsd/os)
2540         add_extralibs -lpoll -lgnugetopt
2541         strip="strip -d"
2542         ;;
2543     darwin)
2544         enable malloc_aligned
2545         gas="gas-preprocessor.pl $cc"
2546         enabled ppc && add_asflags -force_cpusubtype_ALL
2547         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2548         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2549         strip="${strip} -x"
2550         add_ldflags -Wl,-dynamic,-search_paths_first
2551         SLIBSUF=".dylib"
2552         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2553         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2554         FFSERVERLDFLAGS=-Wl,-bind_at_load
2555         objformat="macho"
2556         enabled x86_64 && objformat="macho64"
2557         enabled_any pic shared ||
2558             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2559         ;;
2560     mingw32*)
2561         if test $target_os = "mingw32ce"; then
2562             disable network
2563         else
2564             target_os=mingw32
2565         fi
2566         LIBTARGET=i386
2567         if enabled x86_64; then
2568             enable malloc_aligned
2569             LIBTARGET=x64
2570         elif enabled arm; then
2571             LIBTARGET=arm-wince
2572         fi
2573         shlibdir_default="$bindir_default"
2574         SLIBPREF=""
2575         SLIBSUF=".dll"
2576         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2577         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2578         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2579         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2580         SLIB_INSTALL_LINKS=
2581         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2582         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2583         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2584         objformat="win32"
2585         enable dos_paths
2586         check_cflags -fno-common
2587         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2588                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2589                 die "ERROR: MinGW runtime version must be >= 3.15."
2590         add_cppflags -U__STRICT_ANSI__
2591         ;;
2592     cygwin*)
2593         target_os=cygwin
2594         shlibdir_default="$bindir_default"
2595         SLIBPREF="cyg"
2596         SLIBSUF=".dll"
2597         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2598         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2599         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2600         objformat="win32"
2601         enable dos_paths
2602         check_cflags -fno-common
2603         add_cppflags -U__STRICT_ANSI__
2604         ;;
2605     *-dos|freedos|opendos)
2606         network_extralibs="-lsocket"
2607         objformat="coff"
2608         enable dos_paths
2609         add_cppflags -U__STRICT_ANSI__
2610         ;;
2611     linux)
2612         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2613         enable dv1394
2614         ;;
2615     irix*)
2616         target_os=irix
2617         ranlib="echo ignoring ranlib"
2618         ;;
2619     os/2*)
2620         strip="lxlite -CS"
2621         ln_s="cp -f"
2622         objformat="aout"
2623         add_cppflags -D_GNU_SOURCE
2624         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2625         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2626         FFSERVERLDFLAGS=""
2627         LIBSUF="_s.a"
2628         SLIBPREF=""
2629         SLIBSUF=".dll"
2630         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2631         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2632         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2633           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2634           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2635           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2636           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2637           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2638         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2639           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2640         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2641         enable dos_paths
2642         ;;
2643     gnu/kfreebsd)
2644         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2645         ;;
2646     gnu)
2647         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2648         ;;
2649     qnx)
2650         add_cppflags -D_QNX_SOURCE
2651         network_extralibs="-lsocket"
2652         ;;
2653     symbian)
2654         SLIBSUF=".dll"
2655         enable dos_paths
2656         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2657         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2658         add_ldflags -Wl,--target1-abs,--no-undefined \
2659                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2660                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2661         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2662                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2663                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2664         ;;
2665     none)
2666         ;;
2667     *)
2668         die "Unknown OS '$target_os'."
2669         ;;
2670 esac
2671
2672 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2673
2674 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2675
2676 set_default $PATHS_LIST
2677
2678 # we need to build at least one lib type
2679 if ! enabled_any static shared; then
2680     cat <<EOF
2681 At least one library type must be built.
2682 Specify --enable-static to build the static libraries or --enable-shared to
2683 build the shared libraries as well. To only build the shared libraries specify
2684 --disable-static in addition to --enable-shared.
2685 EOF
2686     exit 1;
2687 fi
2688
2689 die_license_disabled() {
2690     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2691 }
2692
2693 die_license_disabled gpl libcdio
2694 die_license_disabled gpl libx264
2695 die_license_disabled gpl libxavs
2696 die_license_disabled gpl libxvid
2697 die_license_disabled gpl x11grab
2698
2699 die_license_disabled nonfree libaacplus
2700 die_license_disabled nonfree libfaac
2701
2702 die_license_disabled version3 libopencore_amrnb
2703 die_license_disabled version3 libopencore_amrwb
2704 die_license_disabled version3 libvo_aacenc
2705 die_license_disabled version3 libvo_amrwbenc
2706
2707 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2708
2709 disabled optimizations || check_cflags -fomit-frame-pointer
2710
2711 enable_pic() {
2712     enable pic
2713     add_cppflags -DPIC
2714     add_cflags   -fPIC
2715     add_asflags  -fPIC
2716 }
2717
2718 enabled pic && enable_pic
2719
2720 check_cc <<EOF || die "Symbol mangling check failed."
2721 int ff_extern;
2722 EOF
2723 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2724 extern_prefix=${sym%%ff_extern*}
2725
2726 check_cc <<EOF && enable inline_asm
2727 void foo(void) { __asm__ volatile ("" ::); }
2728 EOF
2729
2730 _restrict=
2731 for restrict_keyword in restrict __restrict__ __restrict; do
2732     check_cc <<EOF && _restrict=$restrict_keyword && break
2733 void foo(char * $restrict_keyword p);
2734 EOF
2735 done
2736
2737 check_cc <<EOF && enable attribute_packed
2738 struct { int x; } __attribute__((packed)) x;
2739 EOF
2740
2741 check_cc <<EOF && enable attribute_may_alias
2742 union { int x; } __attribute__((may_alias)) x;
2743 EOF
2744
2745 check_cc <<EOF || die "endian test failed"
2746 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2747 EOF
2748 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2749
2750 if enabled alpha; then
2751
2752     check_cflags -mieee
2753
2754 elif enabled arm; then
2755
2756     enabled thumb && check_cflags -mthumb || check_cflags -marm
2757     nogas=die
2758
2759     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2760         enable vfp_args
2761     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2762         case "${cross_prefix:-$cc}" in
2763             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2764             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2765 __asm__ (".eabi_attribute 28, 1");
2766 int main(void) { return 0; }
2767 EOF
2768         esac
2769         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2770     fi
2771
2772     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2773     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2774     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2775     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2776     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2777     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2778     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2779
2780     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2781
2782     enabled_all armv6t2 shared !pic && enable_pic
2783
2784 elif enabled mips; then
2785
2786     check_asm loongson '"dmult.g $1, $2, $3"'
2787     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2788
2789 elif enabled ppc; then
2790
2791     enable local_aligned_8 local_aligned_16
2792
2793     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2794     check_asm ibm_asm   '"add 0, 0, 0"'
2795     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2796     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2797
2798     # AltiVec flags: The FSF version of GCC differs from the Apple version
2799     if enabled altivec; then
2800         nogas=warn
2801         check_cflags -maltivec -mabi=altivec &&
2802         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2803         check_cflags -faltivec
2804
2805         # check if our compiler supports Motorola AltiVec C API
2806         check_cc <<EOF || disable altivec
2807 $inc_altivec_h
2808 int main(void) {
2809     vector signed int v1, v2, v3;
2810     v1 = vec_add(v2,v3);
2811     return 0;
2812 }
2813 EOF
2814
2815         # check if our compiler supports braces for vector declarations
2816         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2817 $inc_altivec_h
2818 int main (void) { (vector int) {1}; return 0; }
2819 EOF
2820     fi
2821
2822 elif enabled sparc; then
2823
2824     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2825         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2826
2827 elif enabled x86; then
2828
2829     enable local_aligned_8 local_aligned_16
2830
2831     # check whether EBP is available on x86
2832     # As 'i' is stored on the stack, this program will crash
2833     # if the base pointer is used to access it because the
2834     # base pointer is cleared in the inline assembly code.
2835     check_exec_crash <<EOF && enable ebp_available
2836     volatile int i=0;
2837     __asm__ volatile (
2838         "xorl %%ebp, %%ebp"
2839     ::: "%ebp");
2840     return i;
2841 EOF
2842
2843     # check whether EBX is available on x86
2844     check_asm ebx_available '""::"b"(0)' &&
2845         check_asm ebx_available '"":::"%ebx"'
2846
2847     # check whether xmm clobbers are supported
2848     check_asm xmm_clobbers '"":::"%xmm0"'
2849
2850     # check whether binutils is new enough to compile SSSE3/MMX2
2851     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2852     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2853
2854     check_asm bswap '"bswap %%eax" ::: "%eax"'
2855
2856     if ! disabled_any asm mmx yasm; then
2857         if check_cmd $yasmexe --version; then
2858             enabled x86_64 && yasm_extra="-m amd64"
2859             yasm_debug="-g dwarf2"
2860         elif check_cmd nasm -v; then
2861             yasmexe=nasm
2862             yasm_debug="-g -F dwarf"
2863             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2864         fi
2865
2866         YASMFLAGS="-f $objformat $yasm_extra"
2867         enabled pic               && append YASMFLAGS "-DPIC"
2868         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2869         case "$objformat" in
2870             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2871         esac
2872
2873         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2874             die "yasm not found, use --disable-yasm for a crippled build"
2875         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2876     fi
2877
2878     case "$cpu" in
2879         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2880             disable fast_clz
2881         ;;
2882     esac
2883
2884 fi
2885
2886 if enabled asm; then
2887     as=${gas:=$as}
2888     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2889         $nogas "GNU assembler not found, install gas-preprocessor"
2890 fi
2891
2892 check_ldflags -Wl,--as-needed
2893
2894 if check_func dlopen; then
2895     ldl=
2896 elif check_func dlopen -ldl; then
2897     ldl=-ldl
2898 fi
2899
2900 if enabled network; then
2901     check_type "sys/types.h sys/socket.h" socklen_t
2902     check_type netdb.h "struct addrinfo"
2903     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2904     check_type netinet/in.h "struct sockaddr_in6"
2905     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2906     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2907     # Prefer arpa/inet.h over winsock2
2908     if check_header arpa/inet.h ; then
2909         check_func closesocket
2910     elif check_header winsock2.h ; then
2911         check_func_headers winsock2.h closesocket -lws2 && \
2912             network_extralibs="-lws2" || \
2913         { check_func_headers winsock2.h closesocket -lws2_32 && \
2914             network_extralibs="-lws2_32"; }
2915         check_type ws2tcpip.h socklen_t
2916         check_type ws2tcpip.h "struct addrinfo"
2917         check_type ws2tcpip.h "struct ipv6_mreq"
2918         check_type ws2tcpip.h "struct sockaddr_in6"
2919         check_type ws2tcpip.h "struct sockaddr_storage"
2920         check_struct winsock2.h "struct sockaddr" sa_len
2921     else
2922         disable network
2923     fi
2924 fi
2925
2926 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2927 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2928
2929 check_func  fcntl
2930 check_func  fork
2931 check_func  getaddrinfo $network_extralibs
2932 check_func  gethrtime
2933 check_func  getrusage
2934 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2935 check_func  inet_aton $network_extralibs
2936 check_func  isatty
2937 check_func  localtime_r
2938 check_func  ${malloc_prefix}memalign            && enable memalign
2939 check_func  mkstemp
2940 check_func  mmap
2941 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2942 check_func  setrlimit
2943 check_func  strerror_r
2944 check_func  strptime
2945 check_func  strtok_r
2946 check_func_headers conio.h kbhit
2947 check_func_headers windows.h PeekNamedPipe
2948 check_func_headers io.h setmode
2949 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2950 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2951 check_func_headers windows.h GetProcessTimes
2952 check_func_headers windows.h MapViewOfFile
2953 check_func_headers windows.h VirtualAlloc
2954
2955 check_header dlfcn.h
2956 check_header dxva2api.h -D_WIN32_WINNT=0x0600
2957 check_header libcrystalhd/libcrystalhd_if.h
2958 check_header malloc.h
2959 check_header poll.h
2960 check_header sys/mman.h
2961 check_header sys/resource.h
2962 check_header sys/select.h
2963 check_header termios.h
2964 check_header vdpau/vdpau.h
2965 check_header vdpau/vdpau_x11.h
2966 check_header X11/extensions/XvMClib.h
2967
2968 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2969 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2970
2971 # check for some common methods of building with pthread support
2972 # do this before the optional library checks as some of them require pthreads
2973 if ! disabled pthreads && ! enabled w32threads; then
2974     enable pthreads
2975     if check_func pthread_create; then
2976         :
2977     elif check_func pthread_create -pthread; then
2978         add_cflags -pthread
2979         add_extralibs -pthread
2980     elif check_func pthread_create -pthreads; then
2981         add_cflags -pthreads
2982         add_extralibs -pthreads
2983     elif check_func pthread_create -lpthreadGC2; then
2984         add_extralibs -lpthreadGC2
2985     elif ! check_lib pthread.h pthread_create -lpthread; then
2986         disable pthreads
2987     fi
2988 fi
2989
2990 for thread in $THREADS_LIST; do
2991     if enabled $thread; then
2992         test -n "$thread_type" &&
2993             die "ERROR: Only one thread type must be selected." ||
2994             thread_type="$thread"
2995     fi
2996 done
2997
2998 check_lib math.h sin -lm && LIBM="-lm"
2999 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3000 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3001
3002 check_mathfunc exp2
3003 check_mathfunc exp2f
3004 check_mathfunc llrint
3005 check_mathfunc llrintf
3006 check_mathfunc log2
3007 check_mathfunc log2f
3008 check_mathfunc lrint
3009 check_mathfunc lrintf
3010 check_mathfunc round
3011 check_mathfunc roundf
3012 check_mathfunc trunc
3013 check_mathfunc truncf
3014
3015 # these are off by default, so fail if requested and not available
3016 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3017 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
3018 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3019 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3020 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
3021 enabled libdirac   && require_pkg_config dirac                          \
3022     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3023     "dirac_decoder_init dirac_encoder_init"
3024 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3025 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3026 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3027 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3028 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3029 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3030 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3031 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3032 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3033 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3034 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3035 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3036 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3037 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3038     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3039     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3040 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3041 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3042 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3043 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3044 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3045 enabled libvpx     && {
3046     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3047                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3048     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3049                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3050 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3051                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3052                         die "ERROR: libx264 version must be >= 0.118."; }
3053 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3054 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3055 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3056                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3057                         die "ERROR: openal not found"; } &&
3058                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3059                         die "ERROR: openal version must be 1.1 or compatible"; }
3060 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
3061
3062 SDL_CONFIG="${cross_prefix}sdl-config"
3063 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3064     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3065     enable sdl &&
3066     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3067 else
3068   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3069     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3070     sdl_libs=$("${SDL_CONFIG}" --libs)
3071     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3072     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3073     enable sdl &&
3074     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3075   fi
3076 fi
3077 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3078
3079 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3080
3081 check_header linux/fb.h
3082 check_header linux/videodev.h
3083 check_header linux/videodev2.h
3084 check_header sys/videoio.h
3085
3086 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3087 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3088 # w32api 3.12 had it defined wrong
3089 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3090
3091 check_type "dshow.h" IBaseFilter
3092
3093 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3094 { check_header dev/bktr/ioctl_meteor.h &&
3095   check_header dev/bktr/ioctl_bt848.h; } ||
3096 { check_header machine/ioctl_meteor.h &&
3097   check_header machine/ioctl_bt848.h; } ||
3098 { check_header dev/video/meteor/ioctl_meteor.h &&
3099   check_header dev/video/bktr/ioctl_bt848.h; } ||
3100 check_header dev/ic/bt8xx.h
3101
3102 check_header sndio.h
3103 if check_struct sys/soundcard.h audio_buf_info bytes; then
3104     enable_safe sys/soundcard.h
3105 else
3106     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3107     #include <sys/soundcard.h>
3108     audio_buf_info abc;
3109 EOF
3110 fi
3111 check_header soundcard.h
3112
3113 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3114
3115 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3116
3117 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3118
3119 enabled libcdio &&
3120     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3121
3122 enabled x11grab                         &&
3123 check_header X11/Xlib.h                 &&
3124 check_header X11/extensions/XShm.h      &&
3125 check_header X11/extensions/Xfixes.h    &&
3126 check_func XOpenDisplay -lX11           &&
3127 check_func XShmCreateImage -lX11 -lXext &&
3128 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3129
3130 if ! disabled vaapi; then
3131     check_lib va/va.h vaInitialize -lva && {
3132         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3133         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3134     } || disable vaapi
3135 fi
3136
3137 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3138 check_cpp_condition \
3139     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3140     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3141       disable vdpau; }
3142 fi
3143
3144 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3145
3146 # add some useful compiler flags if supported
3147 check_cflags -Wdeclaration-after-statement
3148 check_cflags -Wall
3149 check_cflags -Wno-parentheses
3150 check_cflags -Wno-switch
3151 check_cflags -Wno-format-zero-length
3152 check_cflags -Wdisabled-optimization
3153 check_cflags -Wpointer-arith
3154 check_cflags -Wredundant-decls
3155 check_cflags -Wno-pointer-sign
3156 check_cflags -Wcast-qual
3157 check_cflags -Wwrite-strings
3158 check_cflags -Wtype-limits
3159 check_cflags -Wundef
3160 check_cflags -Wmissing-prototypes
3161 check_cflags -Wno-pointer-to-int-cast
3162 check_cflags -Wstrict-prototypes
3163 enabled extra_warnings && check_cflags -Winline
3164
3165 # add some linker flags
3166 check_ldflags -Wl,--warn-common
3167 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3168 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3169
3170 echo "X{};" > $TMPV
3171 if test_ldflags -Wl,--version-script,$TMPV; then
3172     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3173     check_cc <<EOF && enable symver_asm_label
3174 void ff_foo(void) __asm__ ("av_foo@VERSION");
3175 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3176 EOF
3177     check_cc <<EOF && enable symver_gnu_asm
3178 __asm__(".symver ff_foo,av_foo@VERSION");
3179 void ff_foo(void) {}
3180 EOF
3181 fi
3182
3183 if [ -n "$optflags" ]; then
3184     add_cflags $optflags
3185 elif enabled small; then
3186     add_cflags $size_cflags
3187 elif enabled optimizations; then
3188     add_cflags $speed_cflags
3189 else
3190     add_cflags $noopt_cflags
3191 fi
3192 check_cflags -fno-math-errno
3193 check_cflags -fno-signed-zeros
3194 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3195 int x;
3196 EOF
3197
3198
3199 if enabled icc; then
3200     # Just warnings, no remarks
3201     check_cflags -w1
3202     # -wd: Disable following warnings
3203     # 144, 167, 556: -Wno-pointer-sign
3204     # 1292: attribute "foo" ignored
3205     # 10006: ignoring unknown option -fno-signed-zeros
3206     # 10148: ignoring unknown option -Wno-parentheses
3207     # 10156: ignoring option '-W'; no argument required
3208     check_cflags -wd144,167,556,1292,10006,10148,10156
3209     # 11030: Warning unknown option --as-needed
3210     # 10156: ignoring option '-export'; no argument required
3211     check_ldflags -wd10156,11030
3212     # Allow to compile with optimizations
3213     check_ldflags -march=$cpu
3214     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3215     enable ebp_available
3216     if enabled x86_32; then
3217         test ${icc_version%%.*} -ge 11 && \
3218             check_cflags -falign-stack=maintain-16-byte || \
3219             disable aligned_stack
3220     fi
3221 elif enabled ccc; then
3222     # disable some annoying warnings
3223     add_cflags -msg_disable cvtu32to64
3224     add_cflags -msg_disable embedcomment
3225     add_cflags -msg_disable needconstext
3226     add_cflags -msg_disable nomainieee
3227     add_cflags -msg_disable ptrmismatch1
3228     add_cflags -msg_disable unreachcode
3229 elif enabled gcc; then
3230     check_cflags -fno-tree-vectorize
3231     check_cflags -Werror=implicit-function-declaration
3232     check_cflags -Werror=missing-prototypes
3233 elif enabled llvm_gcc; then
3234     check_cflags -mllvm -stack-alignment=16
3235 elif enabled clang; then
3236     check_cflags -mllvm -stack-alignment=16
3237     check_cflags -Qunused-arguments
3238 elif enabled armcc; then
3239     # 2523: use of inline assembler is deprecated
3240     add_cflags -W${armcc_opt},--diag_suppress=2523
3241     add_cflags -W${armcc_opt},--diag_suppress=1207
3242     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3243     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3244     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3245     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3246 elif enabled tms470; then
3247     add_cflags -pds=824 -pds=837
3248 elif enabled pathscale; then
3249     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3250 fi
3251
3252 enabled_any $THREADS_LIST      && enable threads
3253
3254 check_deps $CONFIG_LIST       \
3255            $CONFIG_EXTRA      \
3256            $HAVE_LIST         \
3257            $DECODER_LIST      \
3258            $ENCODER_LIST      \
3259            $HWACCEL_LIST      \
3260            $PARSER_LIST       \
3261            $BSF_LIST          \
3262            $DEMUXER_LIST      \
3263            $MUXER_LIST        \
3264            $FILTER_LIST       \
3265            $INDEV_LIST        \
3266            $OUTDEV_LIST       \
3267            $PROTOCOL_LIST     \
3268            $ACODEC_TESTS      \
3269            $VCODEC_TESTS      \
3270            $LAVF_TESTS        \
3271            $LAVFI_TESTS       \
3272            $SEEK_TESTS        \
3273
3274 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3275
3276 if test $target_os = "haiku"; then
3277     disable memalign
3278     disable posix_memalign
3279 fi
3280
3281 ! enabled_any memalign posix_memalign malloc_aligned &&
3282     enabled_any $need_memalign && enable memalign_hack
3283
3284 echo "install prefix            $prefix"
3285 echo "source path               $source_path"
3286 echo "C compiler                $cc"
3287 echo "ARCH                      $arch ($cpu)"
3288 if test "$build_suffix" != ""; then
3289     echo "build suffix              $build_suffix"
3290 fi
3291 if test "$progs_suffix" != ""; then
3292     echo "progs suffix              $progs_suffix"
3293 fi
3294 if test "$extra_version" != ""; then
3295     echo "version string suffix     $extra_version"
3296 fi
3297 echo "big-endian                ${bigendian-no}"
3298 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3299 if enabled x86; then
3300     echo "${yasmexe}                      ${yasm-no}"
3301     echo "MMX enabled               ${mmx-no}"
3302     echo "MMX2 enabled              ${mmx2-no}"
3303     echo "3DNow! enabled            ${amd3dnow-no}"
3304     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3305     echo "SSE enabled               ${sse-no}"
3306     echo "SSSE3 enabled             ${ssse3-no}"
3307     echo "AVX enabled               ${avx-no}"
3308     echo "CMOV enabled              ${cmov-no}"
3309     echo "CMOV is fast              ${fast_cmov-no}"
3310     echo "EBX available             ${ebx_available-no}"
3311     echo "EBP available             ${ebp_available-no}"
3312 fi
3313 if enabled arm; then
3314     echo "ARMv5TE enabled           ${armv5te-no}"
3315     echo "ARMv6 enabled             ${armv6-no}"
3316     echo "ARMv6T2 enabled           ${armv6t2-no}"
3317     echo "ARM VFP enabled           ${armvfp-no}"
3318     echo "IWMMXT enabled            ${iwmmxt-no}"
3319     echo "NEON enabled              ${neon-no}"
3320 fi
3321 if enabled mips; then
3322     echo "MMI enabled               ${mmi-no}"
3323 fi
3324 if enabled ppc; then
3325     echo "AltiVec enabled           ${altivec-no}"
3326     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3327     echo "dcbzl available           ${dcbzl-no}"
3328 fi
3329 if enabled sparc; then
3330     echo "VIS enabled               ${vis-no}"
3331 fi
3332 echo "debug symbols             ${debug-no}"
3333 echo "strip symbols             ${stripping-no}"
3334 echo "optimize for size         ${small-no}"
3335 echo "optimizations             ${optimizations-no}"
3336 echo "static                    ${static-no}"
3337 echo "shared                    ${shared-no}"
3338 echo "postprocessing support    ${postproc-no}"
3339 echo "new filter support        ${avfilter-no}"
3340 echo "network support           ${network-no}"
3341 echo "threading support         ${thread_type-no}"
3342 echo "SDL support               ${sdl-no}"
3343 echo "Sun medialib support      ${mlib-no}"
3344 echo "libdxva2 enabled          ${dxva2-no}"
3345 echo "libva enabled             ${vaapi-no}"
3346 echo "libvdpau enabled          ${vdpau-no}"
3347 echo "AVISynth enabled          ${avisynth-no}"
3348 echo "libcelt enabled           ${libcelt-no}"
3349 echo "frei0r enabled            ${frei0r-no}"
3350 echo "libcdio support           ${libcdio-no}"
3351 echo "libdc1394 support         ${libdc1394-no}"
3352 echo "libdirac enabled          ${libdirac-no}"
3353 echo "libfaac enabled           ${libfaac-no}"
3354 echo "libaacplus enabled        ${libaacplus-no}"
3355 echo "libgsm enabled            ${libgsm-no}"
3356 echo "libmodplug enabled        ${libmodplug-no}"
3357 echo "libmp3lame enabled        ${libmp3lame-no}"
3358 echo "libnut enabled            ${libnut-no}"
3359 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3360 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3361 echo "libopencv support         ${libopencv-no}"
3362 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3363 echo "librtmp enabled           ${librtmp-no}"
3364 echo "libschroedinger enabled   ${libschroedinger-no}"
3365 echo "libspeex enabled          ${libspeex-no}"
3366 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3367 echo "libtheora enabled         ${libtheora-no}"
3368 echo "libutvideo enabled        ${libutvideo-no}"
3369 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3370 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3371 echo "libvorbis enabled         ${libvorbis-no}"
3372 echo "libvpx enabled            ${libvpx-no}"
3373 echo "libx264 enabled           ${libx264-no}"
3374 echo "libxavs enabled           ${libxavs-no}"
3375 echo "libxvid enabled           ${libxvid-no}"
3376 echo "openal enabled            ${openal-no}"
3377 echo "zlib enabled              ${zlib-no}"
3378 echo "bzlib enabled             ${bzlib-no}"
3379 echo
3380
3381 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3382     echo "Enabled ${type}s:"
3383     eval list=\$$(toupper $type)_LIST
3384     print_enabled '_*' $list | sort | pr -r -3 -t
3385     echo
3386 done
3387
3388 license="LGPL version 2.1 or later"
3389 if enabled nonfree; then
3390     license="nonfree and unredistributable"
3391 elif enabled gplv3; then
3392     license="GPL version 3 or later"
3393 elif enabled lgplv3; then
3394     license="LGPL version 3 or later"
3395 elif enabled gpl; then
3396     license="GPL version 2 or later"
3397 fi
3398
3399 echo "License: $license"
3400
3401 echo "Creating config.mak and config.h..."
3402
3403 test -e Makefile || $ln_s "$source_path/Makefile" .
3404
3405 enabled stripping || strip="echo skipping strip"
3406
3407 config_files="$TMPH config.mak"
3408
3409 cat > config.mak <<EOF
3410 # Automatically generated by configure - do not modify!
3411 ifndef FFMPEG_CONFIG_MAK
3412 FFMPEG_CONFIG_MAK=1
3413 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3414 prefix=$prefix
3415 LIBDIR=\$(DESTDIR)$libdir
3416 SHLIBDIR=\$(DESTDIR)$shlibdir
3417 INCDIR=\$(DESTDIR)$incdir
3418 BINDIR=\$(DESTDIR)$bindir
3419 DATADIR=\$(DESTDIR)$datadir
3420 MANDIR=\$(DESTDIR)$mandir
3421 SRC_PATH=$source_path
3422 ifndef MAIN_MAKEFILE
3423 SRC_PATH:=\$(SRC_PATH:.%=..%)
3424 endif
3425 CC_IDENT=$cc_ident
3426 ARCH=$arch
3427 CC=$cc
3428 CXX=$cxx
3429 AS=$as
3430 LD=$ld
3431 DEPCC=$dep_cc
3432 YASM=$yasmexe
3433 YASMDEP=$yasmexe
3434 AR=$ar
3435 RANLIB=$ranlib
3436 CP=cp -p
3437 LN_S=$ln_s
3438 STRIP=$strip
3439 CPPFLAGS=$CPPFLAGS
3440 CFLAGS=$CFLAGS
3441 CXXFLAGS=$CXXFLAGS
3442 ASFLAGS=$ASFLAGS
3443 AS_O=$CC_O
3444 CC_O=$CC_O
3445 CXX_O=$CXX_O
3446 LDFLAGS=$LDFLAGS
3447 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3448 SHFLAGS=$SHFLAGS
3449 YASMFLAGS=$YASMFLAGS
3450 BUILDSUF=$build_suffix
3451 PROGSSUF=$progs_suffix
3452 FULLNAME=$FULLNAME
3453 LIBPREF=$LIBPREF
3454 LIBSUF=$LIBSUF
3455 LIBNAME=$LIBNAME
3456 SLIBPREF=$SLIBPREF
3457 SLIBSUF=$SLIBSUF
3458 EXESUF=$EXESUF
3459 EXTRA_VERSION=$extra_version
3460 DEPFLAGS=$DEPFLAGS
3461 CCDEP=$CCDEP
3462 CXXDEP=$CXXDEP
3463 ASDEP=$ASDEP
3464 CC_DEPFLAGS=$CC_DEPFLAGS
3465 AS_DEPFLAGS=$AS_DEPFLAGS
3466 HOSTCC=$host_cc
3467 HOSTCFLAGS=$host_cflags
3468 HOSTEXESUF=$HOSTEXESUF
3469 HOSTLDFLAGS=$host_ldflags
3470 HOSTLIBS=$host_libs
3471 TARGET_EXEC=$target_exec
3472 TARGET_PATH=$target_path
3473 SDL_LIBS=$sdl_libs
3474 SDL_CFLAGS=$sdl_cflags
3475 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3476 EXTRALIBS=$extralibs
3477 INSTALL=$install
3478 LIBTARGET=${LIBTARGET}
3479 SLIBNAME=${SLIBNAME}
3480 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3481 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3482 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3483 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3484 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3485 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3486 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3487 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3488 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3489 NOREDZONE_FLAGS=$noredzone_flags
3490 EOF
3491
3492 get_version(){
3493     name=$1
3494     file=$source_path/$2
3495     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3496     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3497     lcname=$(tolower $name)
3498     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3499     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3500 }
3501
3502 get_version LIBSWSCALE  libswscale/swscale.h
3503 get_version LIBSWRESAMPLE libswresample/swresample.h
3504 get_version LIBPOSTPROC libpostproc/postprocess.h
3505 get_version LIBAVCODEC  libavcodec/version.h
3506 get_version LIBAVDEVICE libavdevice/avdevice.h
3507 get_version LIBAVFORMAT libavformat/version.h
3508 get_version LIBAVUTIL   libavutil/avutil.h
3509 get_version LIBAVFILTER libavfilter/avfilter.h
3510
3511 cat > $TMPH <<EOF
3512 /* Automatically generated by configure - do not modify! */
3513 #ifndef FFMPEG_CONFIG_H
3514 #define FFMPEG_CONFIG_H
3515 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3516 #define FFMPEG_LICENSE "$(c_escape $license)"
3517 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3518 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3519 #define CC_TYPE "$cc_type"
3520 #define CC_VERSION $cc_version
3521 #define restrict $_restrict
3522 #define EXTERN_PREFIX "${extern_prefix}"
3523 #define EXTERN_ASM ${extern_prefix}
3524 #define SLIBSUF "$SLIBSUF"
3525 EOF
3526
3527 test -n "$malloc_prefix" &&
3528     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3529
3530 if enabled small || disabled optimizations; then
3531     echo "#undef  av_always_inline"  >> $TMPH
3532     if enabled small; then
3533         echo "#define av_always_inline inline"  >> $TMPH
3534     else
3535         echo "#define av_always_inline av_unused"  >> $TMPH
3536     fi
3537 fi
3538
3539 if enabled yasm; then
3540     append config_files $TMPASM
3541     printf '' >$TMPASM
3542 fi
3543
3544 print_config ARCH_   "$config_files" $ARCH_LIST
3545 print_config HAVE_   "$config_files" $HAVE_LIST
3546 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3547                                      $CONFIG_EXTRA      \
3548                                      $DECODER_LIST      \
3549                                      $ENCODER_LIST      \
3550                                      $HWACCEL_LIST      \
3551                                      $PARSER_LIST       \
3552                                      $BSF_LIST          \
3553                                      $DEMUXER_LIST      \
3554                                      $MUXER_LIST        \
3555                                      $FILTER_LIST       \
3556                                      $PROTOCOL_LIST     \
3557                                      $INDEV_LIST        \
3558                                      $OUTDEV_LIST       \
3559
3560 cat >>config.mak <<EOF
3561 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3562 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3563 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3564 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3565 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3566 EOF
3567
3568 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3569 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3570
3571 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3572 cp_if_changed $TMPH config.h
3573 touch .config
3574
3575 enabled yasm && cp_if_changed $TMPASM config.asm
3576
3577 cat > $TMPH <<EOF
3578 /* Generated by ffconf */
3579 #ifndef AVUTIL_AVCONFIG_H
3580 #define AVUTIL_AVCONFIG_H
3581 EOF
3582
3583 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3584
3585 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3586
3587 cp_if_changed $TMPH libavutil/avconfig.h
3588
3589 test -n "$WARNINGS" && printf "\n$WARNINGS"
3590
3591 # build pkg-config files
3592
3593 pkgconfig_generate(){
3594 name=$1
3595 shortname=${name#lib}${build_suffix}
3596 comment=$2
3597 version=$3
3598 libs=$4
3599 requires=$5
3600 enabled ${name#lib} || return 0
3601 mkdir -p $name
3602 cat <<EOF > $name/$name.pc
3603 prefix=$prefix
3604 exec_prefix=\${prefix}
3605 libdir=$libdir
3606 includedir=$incdir
3607
3608 Name: $name
3609 Description: $comment
3610 Version: $version
3611 Requires: $(enabled shared || echo $requires)
3612 Requires.private: $(enabled shared && echo $requires)
3613 Conflicts:
3614 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3615 Libs.private: $(enabled shared && echo $libs)
3616 Cflags: -I\${includedir}
3617 EOF
3618 cat <<EOF > $name/$name-uninstalled.pc
3619 prefix=
3620 exec_prefix=
3621 libdir=\${pcfiledir}
3622 includedir=${source_path}
3623
3624 Name: $name
3625 Description: $comment
3626 Version: $version
3627 Requires: $requires
3628 Conflicts:
3629 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3630 Cflags: -I\${includedir}
3631 EOF
3632 }
3633
3634 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3635 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3636 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3637 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3638 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3639 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3640 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3641 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"