configure: remove bashism equality check for target_os.
[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-version2        force GPL version 2 [no]
80   --enable-version3        upgrade (L)GPL to version 3 [no]
81   --enable-nonfree         allow use of nonfree code, the resulting libs
82                            and binaries will be unredistributable [no]
83   --disable-doc            do not build documentation
84   --disable-ffmpeg         disable ffmpeg build
85   --disable-avconv         disable avconv build
86   --disable-ffplay         disable ffplay build
87   --disable-ffprobe        disable ffprobe build
88   --disable-ffserver       disable ffserver build
89   --disable-avdevice       disable libavdevice build
90   --disable-avcodec        disable libavcodec build
91   --disable-avformat       disable libavformat build
92   --disable-swresample     disable libswresample build
93   --disable-swscale        disable libswscale build
94   --disable-postproc       disable libpostproc build
95   --disable-avfilter       disable video filter support [no]
96   --disable-pthreads       disable pthreads [auto]
97   --enable-w32threads      use Win32 threads [no]
98   --enable-x11grab         enable X11 grabbing [no]
99   --disable-network        disable network support [no]
100   --enable-gray            enable full grayscale support (slower color)
101   --disable-swscale-alpha  disable alpha channel support in swscale
102   --disable-fastdiv        disable table-based division
103   --enable-small           optimize for size instead of speed
104   --disable-aandct         disable AAN DCT code
105   --disable-dct            disable DCT code
106   --disable-fft            disable FFT code
107   --disable-golomb         disable Golomb code
108   --disable-huffman        disable Huffman code
109   --disable-lpc            disable LPC code
110   --disable-mdct           disable MDCT code
111   --disable-rdft           disable RDFT code
112   --enable-vaapi           enable VAAPI code [autodetect]
113   --enable-vdpau           enable VDPAU code [autodetect]
114   --disable-dxva2          disable DXVA2 code
115   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
116   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
117   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
118   --disable-everything     disable all components listed below
119   --disable-encoder=NAME   disable encoder NAME
120   --enable-encoder=NAME    enable encoder NAME
121   --disable-encoders       disable all encoders
122   --disable-decoder=NAME   disable decoder NAME
123   --enable-decoder=NAME    enable decoder NAME
124   --disable-decoders       disable all decoders
125   --disable-hwaccel=NAME   disable hwaccel NAME
126   --enable-hwaccel=NAME    enable hwaccel NAME
127   --disable-hwaccels       disable all hwaccels
128   --disable-muxer=NAME     disable muxer NAME
129   --enable-muxer=NAME      enable muxer NAME
130   --disable-muxers         disable all muxers
131   --disable-demuxer=NAME   disable demuxer NAME
132   --enable-demuxer=NAME    enable demuxer NAME
133   --disable-demuxers       disable all demuxers
134   --enable-parser=NAME     enable parser NAME
135   --disable-parser=NAME    disable parser NAME
136   --disable-parsers        disable all parsers
137   --enable-bsf=NAME        enable bitstream filter NAME
138   --disable-bsf=NAME       disable bitstream filter NAME
139   --disable-bsfs           disable all bitstream filters
140   --enable-protocol=NAME   enable protocol NAME
141   --disable-protocol=NAME  disable protocol NAME
142   --disable-protocols      disable all protocols
143   --disable-indev=NAME     disable input device NAME
144   --disable-outdev=NAME    disable output device NAME
145   --disable-indevs         disable input devices
146   --disable-outdevs        disable output devices
147   --disable-devices        disable all devices
148   --enable-filter=NAME     enable filter NAME
149   --disable-filter=NAME    disable filter NAME
150   --disable-filters        disable all filters
151   --list-decoders          show all available decoders
152   --list-encoders          show all available encoders
153   --list-hwaccels          show all available hardware accelerators
154   --list-muxers            show all available muxers
155   --list-demuxers          show all available demuxers
156   --list-parsers           show all available parsers
157   --list-protocols         show all available protocols
158   --list-bsfs              show all available bitstream filters
159   --list-indevs            show all available input devices
160   --list-outdevs           show all available output devices
161   --list-filters           show all available filters
162
163 External library support:
164   --enable-avisynth        enable reading of AVISynth script files [no]
165   --enable-bzlib           enable bzlib [autodetect]
166   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
167   --enable-frei0r          enable frei0r video filtering
168   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
171   --enable-libopencv       enable video filtering via libopencv [no]
172   --enable-libcdio         enable audio CD grabbing with libcdio
173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
174                            and libraw1394 [no]
175   --enable-libdirac        enable Dirac support via libdirac [no]
176   --enable-libfaac         enable FAAC support via libfaac [no]
177   --enable-libfreetype     enable libfreetype [no]
178   --enable-libgsm          enable GSM support via libgsm [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-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
189   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
190   --enable-libvorbis       enable Vorbis encoding via libvorbis,
191                            native implementation exists [no]
192   --enable-libvpx          enable VP8 support via libvpx [no]
193   --enable-libx264         enable H.264 encoding via x264 [no]
194   --enable-libxavs         enable AVS encoding via xavs [no]
195   --enable-libxvid         enable Xvid encoding via xvidcore,
196                            native MPEG-4/Xvid encoder exists [no]
197   --enable-openal          enable OpenAL 1.1 capture support [no]
198   --enable-mlib            enable Sun medialib [no]
199   --enable-zlib            enable zlib [autodetect]
200
201 Advanced options (experts only):
202   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
203   --enable-cross-compile   assume a cross-compiler is used
204   --sysroot=PATH           root of cross-build tree
205   --sysinclude=PATH        location of cross-build system headers
206   --target-os=OS           compiler targets OS [$target_os]
207   --target-exec=CMD        command to run executables on target
208   --target-path=DIR        path to view of build directory on target
209   --nm=NM                  use nm tool
210   --ar=AR                  use archive tool AR [$ar_default]
211   --as=AS                  use assembler AS [$as_default]
212   --cc=CC                  use C compiler CC [$cc_default]
213   --cxx=CXX                use C compiler CXX [$cxx_default]
214   --ld=LD                  use linker LD
215   --host-cc=HOSTCC         use host C compiler HOSTCC
216   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
217   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
218   --host-libs=HLIBS        use libs HLIBS when linking for host
219   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
220   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
221   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
222   --extra-libs=ELIBS       add ELIBS [$ELIBS]
223   --extra-version=STRING   version string suffix []
224   --build-suffix=SUFFIX    library name suffix []
225   --progs-suffix=SUFFIX    program name suffix []
226   --arch=ARCH              select architecture [$arch]
227   --cpu=CPU                select the minimum required CPU (affects
228                            instruction selection, may crash on older CPUs)
229   --disable-asm            disable all assembler optimizations
230   --disable-altivec        disable AltiVec optimizations
231   --disable-amd3dnow       disable 3DNow! optimizations
232   --disable-amd3dnowext    disable 3DNow! extended optimizations
233   --disable-mmx            disable MMX optimizations
234   --disable-mmx2           disable MMX2 optimizations
235   --disable-sse            disable SSE optimizations
236   --disable-ssse3          disable SSSE3 optimizations
237   --disable-avx            disable AVX optimizations
238   --disable-armv5te        disable armv5te optimizations
239   --disable-armv6          disable armv6 optimizations
240   --disable-armv6t2        disable armv6t2 optimizations
241   --disable-armvfp         disable ARM VFP optimizations
242   --disable-iwmmxt         disable iwmmxt optimizations
243   --disable-mmi            disable MMI optimizations
244   --disable-neon           disable neon optimizations
245   --disable-vis            disable VIS optimizations
246   --disable-yasm           disable use of yasm assembler
247   --enable-pic             build position-independent code
248   --malloc-prefix=PFX      prefix malloc and related names with PFX
249   --enable-sram            allow use of on-chip SRAM
250   --disable-symver         disable symbol versioning
251   --optflags               override optimization-related compiler flags
252
253 Developer options (useful when working on FFmpeg itself):
254   --disable-debug          disable debugging symbols
255   --enable-debug=LEVEL     set the debug level [$debuglevel]
256   --disable-optimizations  disable compiler optimizations
257   --enable-extra-warnings  enable more compiler warnings
258   --disable-stripping      disable stripping of executables and shared libraries
259   --samples=PATH           location of test samples for FATE, if not set use
260                            \$FATE_SAMPLES at make invocation time.
261
262 NOTE: Object files are built at the place where configure is launched.
263 EOF
264   exit 0
265 }
266
267 quotes='""'
268
269 log(){
270     echo "$@" >> $logfile
271 }
272
273 log_file(){
274     log BEGIN $1
275     pr -n -t $1 >> $logfile
276     log END $1
277 }
278
279 echolog(){
280     log "$@"
281     echo "$@"
282 }
283
284 warn(){
285     log "WARNING: $*"
286     WARNINGS="${WARNINGS}WARNING: $*\n"
287 }
288
289 die(){
290     echolog "$@"
291     cat <<EOF
292
293 If you think configure made a mistake, make sure you are using the latest
294 version from Git.  If the latest version fails, report the problem to the
295 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
296 EOF
297     if disabled logging; then
298         cat <<EOF
299 Rerun configure with logging enabled (do not use --disable-logging), and
300 include the log this produces with your report.
301 EOF
302     else
303 cat <<EOF
304 Include the log file "$logfile" produced by configure as this will help
305 solving the problem.
306 EOF
307     fi
308     exit 1
309 }
310
311 # Avoid locale weirdness, besides we really just want to translate ASCII.
312 toupper(){
313     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
314 }
315
316 tolower(){
317     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
318 }
319
320 c_escape(){
321     echo "$*" | sed 's/["\\]/\\\0/g'
322 }
323
324 sh_quote(){
325     v=$(echo "$1" | sed "s/'/'\\\\''/g")
326     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
327     echo "$v"
328 }
329
330 cleanws(){
331     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
332 }
333
334 filter(){
335     pat=$1
336     shift
337     for v; do
338         eval "case $v in $pat) echo $v ;; esac"
339     done
340 }
341
342 filter_out(){
343     pat=$1
344     shift
345     for v; do
346         eval "case $v in $pat) ;; *) echo $v ;; esac"
347     done
348 }
349
350 map(){
351     m=$1
352     shift
353     for v; do eval $m; done
354 }
355
356 set_all(){
357     value=$1
358     shift
359     for var in $*; do
360         eval $var=$value
361     done
362 }
363
364 set_weak(){
365     value=$1
366     shift
367     for var; do
368         eval : \${$var:=$value}
369     done
370 }
371
372 set_safe(){
373     var=$1
374     shift
375     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
376 }
377
378 get_safe(){
379     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
380 }
381
382 pushvar(){
383     for var in $*; do
384         eval level=\${${var}_level:=0}
385         eval ${var}_${level}="\$$var"
386         eval ${var}_level=$(($level+1))
387     done
388 }
389
390 popvar(){
391     for var in $*; do
392         eval level=\${${var}_level:-0}
393         test $level = 0 && continue
394         eval level=$(($level-1))
395         eval $var="\${${var}_${level}}"
396         eval ${var}_level=$level
397         eval unset ${var}_${level}
398     done
399 }
400
401 enable(){
402     set_all yes $*
403 }
404
405 disable(){
406     set_all no $*
407 }
408
409 enable_weak(){
410     set_weak yes $*
411 }
412
413 disable_weak(){
414     set_weak no $*
415 }
416
417 enable_safe(){
418     for var; do
419         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
420     done
421 }
422
423 disable_safe(){
424     for var; do
425         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
426     done
427 }
428
429 do_enable_deep(){
430     for var; do
431         enabled $var && continue
432         eval sel="\$${var}_select"
433         eval sgs="\$${var}_suggest"
434         pushvar var sgs
435         enable_deep $sel
436         popvar sgs
437         enable_deep_weak $sgs
438         popvar var
439     done
440 }
441
442 enable_deep(){
443     do_enable_deep $*
444     enable $*
445 }
446
447 enable_deep_weak(){
448     do_enable_deep $*
449     enable_weak $*
450 }
451
452 enabled(){
453     test "${1#!}" = "$1" && op== || op=!=
454     eval test "x\$${1#!}" $op "xyes"
455 }
456
457 disabled(){
458     test "${1#!}" = "$1" && op== || op=!=
459     eval test "x\$${1#!}" $op "xno"
460 }
461
462 enabled_all(){
463     for opt; do
464         enabled $opt || return 1
465     done
466 }
467
468 disabled_all(){
469     for opt; do
470         disabled $opt || return 1
471     done
472 }
473
474 enabled_any(){
475     for opt; do
476         enabled $opt && return 0
477     done
478 }
479
480 disabled_any(){
481     for opt; do
482         disabled $opt && return 0
483     done
484     return 1
485 }
486
487 set_default(){
488     for opt; do
489         eval : \${$opt:=\$${opt}_default}
490     done
491 }
492
493 is_in(){
494     value=$1
495     shift
496     for var in $*; do
497         [ $var = $value ] && return 0
498     done
499     return 1
500 }
501
502 check_deps(){
503     for cfg; do
504         cfg="${cfg#!}"
505         enabled ${cfg}_checking && die "Circular dependency for $cfg."
506         disabled ${cfg}_checking && continue
507         enable ${cfg}_checking
508
509         eval dep_all="\$${cfg}_deps"
510         eval dep_any="\$${cfg}_deps_any"
511         eval dep_sel="\$${cfg}_select"
512         eval dep_sgs="\$${cfg}_suggest"
513         eval dep_ifa="\$${cfg}_if"
514         eval dep_ifn="\$${cfg}_if_any"
515
516         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
517         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
518         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
519
520         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
521         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
522         enabled_all  $dep_all || disable $cfg
523         enabled_any  $dep_any || disable $cfg
524         disabled_any $dep_sel && disable $cfg
525
526         if enabled $cfg; then
527             eval dep_extralibs="\$${cfg}_extralibs"
528             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
529             enable_deep $dep_sel
530             enable_deep_weak $dep_sgs
531         fi
532
533         disable ${cfg}_checking
534     done
535 }
536
537 print_config_h(){
538     enabled $1 && v=1 || v=0
539     echo "#define $2 $v"
540 }
541
542 print_config_mak(){
543     enabled $1 && v= || v=!
544     echo "$v$2=yes"
545 }
546
547 print_config_asm(){
548     enabled $1 && echo "%define $2"
549 }
550
551 print_config(){
552     pfx=$1
553     files=$2
554     shift 2
555     for cfg; do
556         ucname="$(toupper $cfg)"
557         for f in $files; do
558             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
559         done
560     done
561 }
562
563 print_enabled(){
564     test "$1" = -n && end=" " && shift || end="\n"
565     suf=$1
566     shift
567     for v; do
568         enabled $v && printf "%s$end" ${v%$suf};
569     done
570 }
571
572 append(){
573     var=$1
574     shift
575     eval "$var=\"\$$var $*\""
576 }
577
578 prepend(){
579     var=$1
580     shift
581     eval "$var=\"$* \$$var\""
582 }
583
584 add_cppflags(){
585     append CPPFLAGS $($filter_cppflags "$@")
586 }
587
588 add_cflags(){
589     append CFLAGS $($filter_cflags "$@")
590 }
591
592 add_cxxflags(){
593     append CXXFLAGS $($filter_cflags "$@")
594 }
595
596 add_asflags(){
597     append ASFLAGS $($filter_asflags "$@")
598 }
599
600 add_ldflags(){
601     append LDFLAGS "$@"
602 }
603
604 add_extralibs(){
605     prepend extralibs "$@"
606 }
607
608 check_cmd(){
609     log "$@"
610     "$@" >> $logfile 2>&1
611 }
612
613 check_cc(){
614     log check_cc "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
618 }
619
620 check_cxx(){
621     log check_cxx "$@"
622     cat > $TMPCPP
623     log_file $TMPCPP
624     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
625 }
626
627 check_cpp(){
628     log check_cpp "$@"
629     cat > $TMPC
630     log_file $TMPC
631     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
632 }
633
634 check_as(){
635     log check_as "$@"
636     cat > $TMPC
637     log_file $TMPC
638     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
639 }
640
641 check_asm(){
642     log check_asm "$@"
643     name="$1"
644     code="$2"
645     shift 2
646     disable $name
647     check_as "$@" <<EOF && enable $name
648 void foo(void){ __asm__ volatile($code); }
649 EOF
650 }
651
652 check_yasm(){
653     log check_yasm "$@"
654     echo "$1" > $TMPS
655     log_file $TMPS
656     shift 1
657     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
658 }
659
660 check_ld(){
661     log check_ld "$@"
662     type=$1
663     shift 1
664     flags=''
665     libs=''
666     for f; do
667         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
668     done
669     check_$type $($filter_cflags $flags) || return
670     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
671 }
672
673 check_cppflags(){
674     log check_cppflags "$@"
675     set -- $($filter_cppflags "$@")
676     check_cc "$@" <<EOF && append CPPFLAGS "$@"
677 int x;
678 EOF
679 }
680
681 check_cflags(){
682     log check_cflags "$@"
683     set -- $($filter_cflags "$@")
684     check_cc "$@" <<EOF && append CFLAGS "$@"
685 int x;
686 EOF
687 }
688
689 check_cxxflags(){
690     log check_cxxflags "$@"
691     set -- $($filter_cflags "$@")
692     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
693 int x;
694 EOF
695 }
696
697 test_ldflags(){
698     log test_ldflags "$@"
699     check_ld "cc" "$@" <<EOF
700 int main(void){ return 0; }
701 EOF
702 }
703
704 check_ldflags(){
705     log check_ldflags "$@"
706     test_ldflags "$@" && add_ldflags "$@"
707 }
708
709 check_header(){
710     log check_header "$@"
711     header=$1
712     shift
713     disable_safe $header
714     check_cpp "$@" <<EOF && enable_safe $header
715 #include <$header>
716 int x;
717 EOF
718 }
719
720 check_func(){
721     log check_func "$@"
722     func=$1
723     shift
724     disable $func
725     check_ld "cc" "$@" <<EOF && enable $func
726 extern int $func();
727 int main(void){ $func(); }
728 EOF
729 }
730
731 check_mathfunc(){
732     log check_mathfunc "$@"
733     func=$1
734     shift
735     disable $func
736     check_ld "cc" "$@" <<EOF && enable $func
737 #include <math.h>
738 float foo(float f) { return $func(f); }
739 int main(void){ return (int) foo; }
740 EOF
741 }
742
743 check_func_headers(){
744     log check_func_headers "$@"
745     headers=$1
746     funcs=$2
747     shift 2
748     {
749         for hdr in $headers; do
750             echo "#include <$hdr>"
751         done
752         for func in $funcs; do
753             echo "long check_$func(void) { return (long) $func; }"
754         done
755         echo "int main(void) { return 0; }"
756     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
757 }
758
759 check_class_headers_cpp(){
760     log check_class_headers_cpp "$@"
761     headers=$1
762     classes=$2
763     shift 2
764     {
765         for hdr in $headers; do
766             echo "#include <$hdr>"
767         done
768         echo "int main(void) { "
769         i=1
770         for class in $classes; do
771             echo "$class obj$i;"
772             i=$(expr $i + 1)
773         done
774         echo "return 0; }"
775     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
776 }
777
778 check_cpp_condition(){
779     log check_cpp_condition "$@"
780     header=$1
781     condition=$2
782     shift 2
783     check_cpp $($filter_cppflags "$@") <<EOF
784 #include <$header>
785 #if !($condition)
786 #error "unsatisfied condition: $condition"
787 #endif
788 EOF
789 }
790
791 check_lib(){
792     log check_lib "$@"
793     header="$1"
794     func="$2"
795     shift 2
796     check_header $header && check_func $func "$@" && add_extralibs "$@"
797 }
798
799 check_lib2(){
800     log check_lib2 "$@"
801     headers="$1"
802     funcs="$2"
803     shift 2
804     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
805 }
806
807 check_lib_cpp(){
808     log check_lib_cpp "$@"
809     headers="$1"
810     classes="$2"
811     shift 2
812     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
813 }
814
815 check_pkg_config(){
816     log check_pkg_config "$@"
817     pkg="$1"
818     headers="$2"
819     funcs="$3"
820     shift 3
821     $pkg_config --exists $pkg 2>/dev/null || return
822     pkg_cflags=$($pkg_config --cflags $pkg)
823     pkg_libs=$($pkg_config --libs $pkg)
824     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
825         set_safe ${pkg}_cflags $pkg_cflags   &&
826         set_safe ${pkg}_libs   $pkg_libs
827 }
828
829 check_exec(){
830     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
831 }
832
833 check_exec_crash(){
834     code=$(cat)
835
836     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
837     # are safe but may not be available everywhere.  Thus we use
838     # raise(SIGTERM) instead.  The check is run in a subshell so we
839     # can redirect the "Terminated" message from the shell.  SIGBUS
840     # is not defined by standard C so it is used conditionally.
841
842     (check_exec "$@") >> $logfile 2>&1 <<EOF
843 #include <signal.h>
844 static void sighandler(int sig){
845     raise(SIGTERM);
846 }
847 int main(void){
848     signal(SIGILL, sighandler);
849     signal(SIGFPE, sighandler);
850     signal(SIGSEGV, sighandler);
851 #ifdef SIGBUS
852     signal(SIGBUS, sighandler);
853 #endif
854     { $code }
855 }
856 EOF
857 }
858
859 check_type(){
860     log check_type "$@"
861     headers=$1
862     type=$2
863     shift 2
864     disable_safe "$type"
865     incs=""
866     for hdr in $headers; do
867         incs="$incs
868 #include <$hdr>"
869     done
870     check_cc "$@" <<EOF && enable_safe "$type"
871 $incs
872 $type v;
873 EOF
874 }
875
876 check_struct(){
877     log check_type "$@"
878     headers=$1
879     struct=$2
880     member=$3
881     shift 3
882     disable_safe "${struct}_${member}"
883     incs=""
884     for hdr in $headers; do
885         incs="$incs
886 #include <$hdr>"
887     done
888     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
889 $incs
890 const void *p = &(($struct *)0)->$member;
891 EOF
892 }
893
894 require(){
895     name="$1"
896     header="$2"
897     func="$3"
898     shift 3
899     check_lib $header $func "$@" || die "ERROR: $name not found"
900 }
901
902 require2(){
903     name="$1"
904     headers="$2"
905     func="$3"
906     shift 3
907     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
908 }
909
910 require_cpp(){
911     name="$1"
912     headers="$2"
913     classes="$3"
914     shift 3
915     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
916 }
917
918 require_pkg_config(){
919     pkg="$1"
920     check_pkg_config "$@" || die "ERROR: $pkg not found"
921     add_cflags    $(get_safe ${pkg}_cflags)
922     add_extralibs $(get_safe ${pkg}_libs)
923 }
924
925 check_host_cc(){
926     log check_host_cc "$@"
927     cat > $TMPC
928     log_file $TMPC
929     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
930 }
931
932 check_host_cflags(){
933     log check_host_cflags "$@"
934     check_host_cc "$@" <<EOF && append host_cflags "$@"
935 int x;
936 EOF
937 }
938
939 apply(){
940     file=$1
941     shift
942     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
943 }
944
945 cp_if_changed(){
946     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
947     mkdir -p "$(dirname $2)"
948     cp -f "$1" "$2"
949 }
950
951 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
952 # system-dependent things.
953
954 COMPONENT_LIST="
955     bsfs
956     decoders
957     demuxers
958     encoders
959     filters
960     hwaccels
961     indevs
962     muxers
963     outdevs
964     parsers
965     protocols
966 "
967
968 CONFIG_LIST="
969     $COMPONENT_LIST
970     aandct
971     ac3dsp
972     avcodec
973     avdevice
974     avfilter
975     avformat
976     avisynth
977     bzlib
978     crystalhd
979     dct
980     doc
981     dwt
982     dxva2
983     fastdiv
984     ffmpeg
985     avconv
986     ffplay
987     ffprobe
988     ffserver
989     fft
990     frei0r
991     golomb
992     gpl
993     gray
994     h264dsp
995     h264pred
996     hardcoded_tables
997     huffman
998     libaacplus
999     libcdio
1000     libcelt
1001     libdc1394
1002     libdirac
1003     libfaac
1004     libfreetype
1005     libgsm
1006     libmp3lame
1007     libnut
1008     libopencore_amrnb
1009     libopencore_amrwb
1010     libopencv
1011     libopenjpeg
1012     librtmp
1013     libschroedinger
1014     libspeex
1015     libstagefright_h264
1016     libtheora
1017     libvo_aacenc
1018     libvo_amrwbenc
1019     libvorbis
1020     libvpx
1021     libx264
1022     libxavs
1023     libxvid
1024     lpc
1025     lsp
1026     mdct
1027     memalign_hack
1028     mlib
1029     mpegaudiodsp
1030     network
1031     nonfree
1032     openal
1033     pic
1034     postproc
1035     rdft
1036     rtpdec
1037     runtime_cpudetect
1038     shared
1039     sinewin
1040     small
1041     sram
1042     static
1043     swresample
1044     swscale
1045     swscale_alpha
1046     thumb
1047     vaapi
1048     vdpau
1049     version2
1050     version3
1051     x11grab
1052     zlib
1053 "
1054
1055 THREADS_LIST='
1056     pthreads
1057     w32threads
1058 '
1059
1060 ARCH_LIST='
1061     alpha
1062     arm
1063     avr32
1064     avr32_ap
1065     avr32_uc
1066     bfin
1067     ia64
1068     m68k
1069     mips
1070     mips64
1071     parisc
1072     ppc
1073     ppc64
1074     s390
1075     sh4
1076     sparc
1077     sparc64
1078     tomi
1079     x86
1080     x86_32
1081     x86_64
1082 '
1083
1084 ARCH_EXT_LIST='
1085     altivec
1086     amd3dnow
1087     amd3dnowext
1088     armv5te
1089     armv6
1090     armv6t2
1091     armvfp
1092     avx
1093     iwmmxt
1094     mmi
1095     mmx
1096     mmx2
1097     neon
1098     ppc4xx
1099     sse
1100     ssse3
1101     vfpv3
1102     vis
1103 '
1104
1105 HAVE_LIST_PUB='
1106     bigendian
1107     fast_unaligned
1108 '
1109
1110 HAVE_LIST="
1111     $ARCH_EXT_LIST
1112     $HAVE_LIST_PUB
1113     $THREADS_LIST
1114     aligned_stack
1115     alsa_asoundlib_h
1116     altivec_h
1117     arpa_inet_h
1118     asm_mod_y
1119     attribute_may_alias
1120     attribute_packed
1121     bswap
1122     closesocket
1123     cmov
1124     dcbzl
1125     dev_bktr_ioctl_bt848_h
1126     dev_bktr_ioctl_meteor_h
1127     dev_ic_bt8xx_h
1128     dev_video_meteor_ioctl_meteor_h
1129     dev_video_bktr_ioctl_bt848_h
1130     dlfcn_h
1131     dlopen
1132     dos_paths
1133     ebp_available
1134     ebx_available
1135     exp2
1136     exp2f
1137     fast_64bit
1138     fast_clz
1139     fast_cmov
1140     fcntl
1141     fork
1142     getaddrinfo
1143     gethrtime
1144     GetProcessMemoryInfo
1145     GetProcessTimes
1146     getrusage
1147     gnu_as
1148     struct_rusage_ru_maxrss
1149     ibm_asm
1150     inet_aton
1151     inline_asm
1152     isatty
1153     kbhit
1154     ldbrx
1155     llrint
1156     llrintf
1157     local_aligned_16
1158     local_aligned_8
1159     localtime_r
1160     log2
1161     log2f
1162     loongson
1163     lrint
1164     lrintf
1165     lzo1x_999_compress
1166     machine_ioctl_bt848_h
1167     machine_ioctl_meteor_h
1168     malloc_h
1169     MapViewOfFile
1170     memalign
1171     mkstemp
1172     mmap
1173     PeekNamedPipe
1174     posix_memalign
1175     round
1176     roundf
1177     sdl
1178     sdl_video_size
1179     setmode
1180     sndio_h
1181     socklen_t
1182     soundcard_h
1183     poll_h
1184     setrlimit
1185     strerror_r
1186     strptime
1187     strtok_r
1188     struct_addrinfo
1189     struct_ipv6_mreq
1190     struct_sockaddr_in6
1191     struct_sockaddr_sa_len
1192     struct_sockaddr_storage
1193     symver
1194     symver_gnu_asm
1195     symver_asm_label
1196     sys_mman_h
1197     sys_resource_h
1198     sys_select_h
1199     sys_soundcard_h
1200     sys_videoio_h
1201     termios_h
1202     threads
1203     trunc
1204     truncf
1205     vfp_args
1206     VirtualAlloc
1207     winsock2_h
1208     xform_asm
1209     xmm_clobbers
1210     yasm
1211 "
1212
1213 # options emitted with CONFIG_ prefix but not available on command line
1214 CONFIG_EXTRA="
1215     avutil
1216     gplv3
1217     gplv2
1218     lgplv3
1219 "
1220
1221 CMDLINE_SELECT="
1222     $ARCH_EXT_LIST
1223     $CONFIG_LIST
1224     $THREADS_LIST
1225     asm
1226     cross_compile
1227     debug
1228     extra_warnings
1229     logging
1230     optimizations
1231     stripping
1232     symver
1233     yasm
1234 "
1235
1236 PATHS_LIST='
1237     bindir
1238     datadir
1239     incdir
1240     libdir
1241     mandir
1242     prefix
1243     shlibdir
1244 '
1245
1246 CMDLINE_SET="
1247     $PATHS_LIST
1248     ar
1249     arch
1250     as
1251     build_suffix
1252     progs_suffix
1253     cc
1254     cpu
1255     cross_prefix
1256     cxx
1257     dep_cc
1258     extra_version
1259     host_cc
1260     host_cflags
1261     host_ldflags
1262     host_libs
1263     host_os
1264     install
1265     ld
1266     logfile
1267     malloc_prefix
1268     nm
1269     optflags
1270     pkg_config
1271     samples
1272     strip
1273     sysinclude
1274     sysroot
1275     target_exec
1276     target_os
1277     target_path
1278 "
1279
1280 CMDLINE_APPEND="
1281     extra_cflags
1282     extra_cxxflags
1283 "
1284
1285 # code dependency declarations
1286
1287 # architecture extensions
1288
1289 armv5te_deps="arm"
1290 armv6_deps="arm"
1291 armv6t2_deps="arm"
1292 armvfp_deps="arm"
1293 iwmmxt_deps="arm"
1294 neon_deps="arm"
1295 vfpv3_deps="armvfp"
1296
1297 mmi_deps="mips"
1298
1299 altivec_deps="ppc"
1300 ppc4xx_deps="ppc"
1301
1302 vis_deps="sparc"
1303
1304 x86_64_suggest="cmov fast_cmov"
1305 amd3dnow_deps="mmx"
1306 amd3dnowext_deps="amd3dnow"
1307 mmx_deps="x86"
1308 mmx2_deps="mmx"
1309 sse_deps="mmx"
1310 ssse3_deps="sse"
1311 avx_deps="ssse3"
1312
1313 aligned_stack_if_any="ppc x86"
1314 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1315 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1316 fast_unaligned_if_any="armv6 ppc x86"
1317
1318 need_memalign="altivec neon sse"
1319 inline_asm_deps="!tms470"
1320
1321 symver_if_any="symver_asm_label symver_gnu_asm"
1322
1323 # subsystems
1324 dct_select="rdft"
1325 mdct_select="fft"
1326 rdft_select="fft"
1327 mpegaudiodsp_select="dct"
1328
1329 # decoders / encoders / hardware accelerators
1330 aac_decoder_select="mdct sinewin"
1331 aac_encoder_select="mdct sinewin"
1332 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1333 ac3_decoder_select="mdct ac3dsp ac3_parser"
1334 ac3_encoder_select="mdct ac3dsp"
1335 ac3_fixed_encoder_select="mdct ac3dsp"
1336 alac_encoder_select="lpc"
1337 amrnb_decoder_select="lsp"
1338 amrwb_decoder_select="lsp"
1339 atrac1_decoder_select="mdct sinewin"
1340 atrac3_decoder_select="mdct"
1341 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1342 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1343 cavs_decoder_select="golomb"
1344 cook_decoder_select="mdct sinewin"
1345 cscd_decoder_suggest="zlib"
1346 dca_decoder_select="mdct"
1347 dnxhd_encoder_select="aandct"
1348 dxa_decoder_select="zlib"
1349 eac3_decoder_select="ac3_decoder"
1350 eac3_encoder_select="mdct ac3dsp"
1351 eamad_decoder_select="aandct"
1352 eatgq_decoder_select="aandct"
1353 eatqi_decoder_select="aandct"
1354 ffv1_decoder_select="golomb"
1355 flac_decoder_select="golomb"
1356 flac_encoder_select="golomb lpc"
1357 flashsv_decoder_select="zlib"
1358 flashsv_encoder_select="zlib"
1359 flashsv2_encoder_select="zlib"
1360 flashsv2_decoder_select="zlib"
1361 flv_decoder_select="h263_decoder"
1362 flv_encoder_select="h263_encoder"
1363 fraps_decoder_select="huffman"
1364 h261_encoder_select="aandct"
1365 h263_decoder_select="h263_parser"
1366 h263_encoder_select="aandct"
1367 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1368 h263i_decoder_select="h263_decoder"
1369 h263p_encoder_select="h263_encoder"
1370 h264_decoder_select="golomb h264dsp h264pred"
1371 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1372 h264_dxva2_hwaccel_deps="dxva2api_h"
1373 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1374 h264_vaapi_hwaccel_select="vaapi"
1375 h264_vdpau_decoder_select="vdpau h264_decoder"
1376 imc_decoder_select="fft mdct sinewin"
1377 jpegls_decoder_select="golomb"
1378 jpegls_encoder_select="golomb"
1379 ljpeg_encoder_select="aandct"
1380 loco_decoder_select="golomb"
1381 mjpeg_encoder_select="aandct"
1382 mlp_decoder_select="mlp_parser"
1383 mp1_decoder_select="mpegaudiodsp"
1384 mp2_decoder_select="mpegaudiodsp"
1385 mp3adu_decoder_select="mpegaudiodsp"
1386 mp3_decoder_select="mpegaudiodsp"
1387 mp3on4_decoder_select="mpegaudiodsp"
1388 mp1float_decoder_select="mpegaudiodsp"
1389 mp2float_decoder_select="mpegaudiodsp"
1390 mp3adufloat_decoder_select="mpegaudiodsp"
1391 mp3float_decoder_select="mpegaudiodsp"
1392 mp3on4float_decoder_select="mpegaudiodsp"
1393 mpeg1video_encoder_select="aandct"
1394 mpeg2video_encoder_select="aandct"
1395 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1396 mpeg4_encoder_select="h263_encoder"
1397 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1398 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1399 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1400 mpeg2_crystalhd_decoder_select="crystalhd"
1401 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1402 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1403 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1404 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1405 mpeg4_crystalhd_decoder_select="crystalhd"
1406 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1407 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1408 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1409 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1410 msmpeg4_crystalhd_decoder_select="crystalhd"
1411 msmpeg4v1_decoder_select="h263_decoder"
1412 msmpeg4v1_encoder_select="h263_encoder"
1413 msmpeg4v2_decoder_select="h263_decoder"
1414 msmpeg4v2_encoder_select="h263_encoder"
1415 msmpeg4v3_decoder_select="h263_decoder"
1416 msmpeg4v3_encoder_select="h263_encoder"
1417 nellymoser_decoder_select="mdct sinewin"
1418 nellymoser_encoder_select="mdct sinewin"
1419 png_decoder_select="zlib"
1420 png_encoder_select="zlib"
1421 prores_gpl_decoder_deps="version2 gpl"
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 libmp3lame_encoder_deps="libmp3lame"
1499 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1500 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1501 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1502 libopenjpeg_decoder_deps="libopenjpeg"
1503 libschroedinger_decoder_deps="libschroedinger"
1504 libschroedinger_encoder_deps="libschroedinger"
1505 libspeex_decoder_deps="libspeex"
1506 libspeex_encoder_deps="libspeex"
1507 libstagefright_h264_decoder_deps="libstagefright_h264"
1508 libtheora_encoder_deps="libtheora"
1509 libvo_aacenc_encoder_deps="libvo_aacenc"
1510 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1511 libvorbis_encoder_deps="libvorbis"
1512 libvpx_decoder_deps="libvpx"
1513 libvpx_encoder_deps="libvpx"
1514 libx264_encoder_deps="libx264"
1515 libxavs_encoder_deps="libxavs"
1516 libxvid_encoder_deps="libxvid"
1517
1518 # demuxers / muxers
1519 ac3_demuxer_select="ac3_parser"
1520 asf_stream_muxer_select="asf_muxer"
1521 avisynth_demuxer_deps="avisynth"
1522 dirac_demuxer_select="dirac_parser"
1523 eac3_demuxer_select="ac3_parser"
1524 flac_demuxer_select="flac_parser"
1525 ipod_muxer_select="mov_muxer"
1526 libnut_demuxer_deps="libnut"
1527 libnut_muxer_deps="libnut"
1528 matroska_audio_muxer_select="matroska_muxer"
1529 matroska_demuxer_suggest="zlib bzlib"
1530 mov_demuxer_suggest="zlib"
1531 mp3_demuxer_select="mpegaudio_parser"
1532 mp4_muxer_select="mov_muxer"
1533 mpegtsraw_demuxer_select="mpegts_demuxer"
1534 mxf_d10_muxer_select="mxf_muxer"
1535 ogg_demuxer_select="golomb"
1536 psp_muxer_select="mov_muxer"
1537 rtp_demuxer_select="sdp_demuxer"
1538 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1539 rtsp_demuxer_select="http_protocol rtpdec"
1540 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1541 sap_demuxer_select="sdp_demuxer"
1542 sap_muxer_select="rtp_muxer rtp_protocol"
1543 sdp_demuxer_select="rtpdec"
1544 spdif_muxer_select="aac_parser"
1545 tg2_muxer_select="mov_muxer"
1546 tgp_muxer_select="mov_muxer"
1547 w64_demuxer_deps="wav_demuxer"
1548
1549 # indevs / outdevs
1550 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1551 alsa_outdev_deps="alsa_asoundlib_h"
1552 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1553 dshow_indev_deps="IBaseFilter"
1554 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1555 dv1394_indev_deps="dv1394 dv_demuxer"
1556 fbdev_indev_deps="linux_fb_h"
1557 jack_indev_deps="jack_jack_h sem_timedwait"
1558 lavfi_indev_deps="avfilter"
1559 libcdio_indev_deps="libcdio"
1560 libdc1394_indev_deps="libdc1394"
1561 openal_indev_deps="openal"
1562 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1563 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1564 sdl_outdev_deps="sdl"
1565 sndio_indev_deps="sndio_h"
1566 sndio_outdev_deps="sndio_h"
1567 v4l_indev_deps="linux_videodev_h"
1568 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1569 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1570 vfwcap_indev_extralibs="-lavicap32"
1571 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1572 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1573
1574 # protocols
1575 gopher_protocol_deps="network"
1576 http_protocol_deps="network"
1577 http_protocol_select="tcp_protocol"
1578 mmsh_protocol_select="http_protocol"
1579 mmst_protocol_deps="network"
1580 rtmp_protocol_select="tcp_protocol"
1581 rtp_protocol_select="udp_protocol"
1582 tcp_protocol_deps="network"
1583 udp_protocol_deps="network"
1584
1585 # filters
1586 abuffer_filter_deps="strtok_r"
1587 aconvert_filter_deps="strtok_r"
1588 aformat_filter_deps="strtok_r"
1589 amovie_filter_deps="avcodec avformat"
1590 blackframe_filter_deps="gpl"
1591 boxblur_filter_deps="gpl"
1592 cropdetect_filter_deps="gpl"
1593 delogo_filter_deps="gpl"
1594 drawtext_filter_deps="libfreetype"
1595 frei0r_filter_deps="frei0r dlopen strtok_r"
1596 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1597 hqdn3d_filter_deps="gpl"
1598 movie_filter_deps="avcodec avformat"
1599 mp_filter_deps="gpl avcodec"
1600 mptestsrc_filter_deps="gpl"
1601 negate_filter_deps="lut_filter"
1602 ocv_filter_deps="libopencv"
1603 scale_filter_deps="swscale"
1604 yadif_filter_deps="gpl"
1605
1606 # libraries
1607 avdevice_deps="avcodec avformat"
1608 avformat_deps="avcodec"
1609 postproc_deps="gpl"
1610
1611 # programs
1612 ffmpeg_deps="avcodec avformat swscale swresample"
1613 ffmpeg_select="buffer_filter buffersink_filter"
1614 avconv_deps="avcodec avformat swscale"
1615 avconv_select="buffer_filter"
1616 ffplay_deps="avcodec avformat swscale sdl"
1617 ffplay_select="buffersink_filter rdft"
1618 ffprobe_deps="avcodec avformat"
1619 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1620 ffserver_extralibs='$ldl'
1621
1622 doc_deps="texi2html"
1623
1624 # tests
1625
1626 test_deps(){
1627     suf1=$1
1628     suf2=$2
1629     shift 2
1630     for v; do
1631         dep=${v%=*}
1632         tests=${v#*=}
1633         for name in ${tests}; do
1634             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1635         done
1636     done
1637 }
1638
1639 mxf_d10_test_deps="avfilter"
1640 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1641
1642 test_deps _encoder _decoder                                             \
1643     adpcm_g726=g726                                                     \
1644     adpcm_ima_qt                                                        \
1645     adpcm_ima_wav                                                       \
1646     adpcm_ms                                                            \
1647     adpcm_swf                                                           \
1648     adpcm_yamaha=adpcm_yam                                              \
1649     alac                                                                \
1650     asv1                                                                \
1651     asv2                                                                \
1652     bmp                                                                 \
1653     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1654     dvvideo="dv dv50"                                                   \
1655     ffv1                                                                \
1656     flac                                                                \
1657     flashsv                                                             \
1658     flv                                                                 \
1659     gif                                                                 \
1660     h261                                                                \
1661     h263="h263 h263p"                                                   \
1662     huffyuv                                                             \
1663     jpegls                                                              \
1664     mjpeg="jpg mjpeg ljpeg"                                             \
1665     mp2                                                                 \
1666     mpeg1video="mpeg mpeg1b"                                            \
1667     mpeg2video="mpeg2 mpeg2thread"                                      \
1668     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1669     msmpeg4v3=msmpeg4                                                   \
1670     msmpeg4v2                                                           \
1671     pbm=pbmpipe                                                         \
1672     pcx                                                                 \
1673     pgm="pgm pgmpipe"                                                   \
1674     png                                                                 \
1675     ppm="ppm ppmpipe"                                                   \
1676     rawvideo="rgb yuv"                                                  \
1677     roq                                                                 \
1678     rv10                                                                \
1679     rv20                                                                \
1680     sgi                                                                 \
1681     snow="snow snowll"                                                  \
1682     svq1                                                                \
1683     targa=tga                                                           \
1684     tiff                                                                \
1685     wmav1                                                               \
1686     wmav2                                                               \
1687     wmv1                                                                \
1688     wmv2                                                                \
1689
1690 test_deps _muxer _demuxer                                               \
1691     aiff                                                                \
1692     pcm_alaw=alaw                                                       \
1693     asf                                                                 \
1694     au                                                                  \
1695     avi                                                                 \
1696     dv=dv_fmt                                                           \
1697     ffm                                                                 \
1698     flv=flv_fmt                                                         \
1699     gxf                                                                 \
1700     matroska=mkv                                                        \
1701     mmf                                                                 \
1702     mov                                                                 \
1703     pcm_mulaw=mulaw                                                     \
1704     mxf="mxf mxf_d10"                                                   \
1705     nut                                                                 \
1706     ogg                                                                 \
1707     rawvideo=pixfmt                                                     \
1708     rm                                                                  \
1709     swf                                                                 \
1710     mpegts=ts                                                           \
1711     voc                                                                 \
1712     wav                                                                 \
1713     yuv4mpegpipe=yuv4mpeg                                               \
1714
1715 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1716 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1717
1718 # default parameters
1719
1720 logfile="config.log"
1721
1722 # installation paths
1723 prefix_default="/usr/local"
1724 bindir_default='${prefix}/bin'
1725 datadir_default='${prefix}/share/ffmpeg'
1726 incdir_default='${prefix}/include'
1727 libdir_default='${prefix}/lib'
1728 mandir_default='${prefix}/share/man'
1729 shlibdir_default="$libdir_default"
1730
1731 # toolchain
1732 ar_default="ar"
1733 cc_default="gcc"
1734 cxx_default="g++"
1735 cc_version=\"unknown\"
1736 host_cc_default="gcc"
1737 install="install"
1738 ln_s="ln -sf"
1739 nm_default="nm"
1740 objformat="elf"
1741 pkg_config_default=pkg-config
1742 ranlib="ranlib"
1743 strip_default="strip"
1744 yasmexe="yasm"
1745 nogas=":"
1746
1747 nm_opts='-g'
1748
1749 # machine
1750 arch_default=$(uname -m)
1751 cpu="generic"
1752
1753 # OS
1754 target_os_default=$(tolower $(uname -s))
1755 host_os=$target_os_default
1756
1757 # configurable options
1758 enable avcodec
1759 enable avdevice
1760 enable avfilter
1761 enable avformat
1762 enable avutil
1763 enable asm
1764 enable debug
1765 enable doc
1766 enable fastdiv
1767 enable ffmpeg
1768 enable avconv
1769 enable ffplay
1770 enable ffprobe
1771 enable ffserver
1772 enable network
1773 enable optimizations
1774 enable postproc
1775 enable protocols
1776 enable static
1777 enable stripping
1778 enable swresample
1779 enable swscale
1780 enable swscale_alpha
1781
1782 # build settings
1783 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1784 FFSERVERLDFLAGS=-Wl,-E
1785 LIBPREF="lib"
1786 LIBSUF=".a"
1787 FULLNAME='$(NAME)$(BUILDSUF)'
1788 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1789 SLIBPREF="lib"
1790 SLIBSUF=".so"
1791 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1792 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1793 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1794 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1795 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1796 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1797
1798 AS_O='-o $@'
1799 CC_O='-o $@'
1800 CXX_O='-o $@'
1801
1802 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1803 host_libs='-lm'
1804
1805 target_path='$(CURDIR)'
1806
1807 # since the object filename is not given with the -MM flag, the compiler
1808 # is only able to print the basename, and we must add the path ourselves
1809 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1810 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1811
1812 # find source path
1813 if test -f configure; then
1814     source_path=.
1815 else
1816     source_path=$(cd $(dirname "$0"); pwd)
1817     echo "$source_path" | grep -q '[[:blank:]]' &&
1818         die "Out of tree builds are impossible with whitespace in source path."
1819     test -e "$source_path/config.h" &&
1820         die "Out of tree builds are impossible with config.h in source dir."
1821 fi
1822
1823 for v in "$@"; do
1824     r=${v#*=}
1825     l=${v%"$r"}
1826     r=$(sh_quote "$r")
1827     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1828 done
1829
1830 find_things(){
1831     thing=$1
1832     pattern=$2
1833     file=$source_path/$3
1834     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1835 }
1836
1837 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1838 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1839 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1840 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1841 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1842 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1843 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1844 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1845 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1846 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1847 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1848
1849 find_tests(){
1850     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1851 }
1852
1853 ACODEC_TESTS=$(find_tests acodec)
1854 VCODEC_TESTS=$(find_tests vsynth1)
1855 LAVF_TESTS=$(find_tests lavf)
1856 LAVFI_TESTS=$(find_tests lavfi)
1857 SEEK_TESTS=$(find_tests seek seek_)
1858
1859 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1860
1861 for n in $COMPONENT_LIST; do
1862     v=$(toupper ${n%s})_LIST
1863     eval enable \$$v
1864     eval ${n}_if_any="\$$v"
1865 done
1866
1867 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1868
1869 die_unknown(){
1870     echo "Unknown option \"$1\"."
1871     echo "See $0 --help for available options."
1872     exit 1
1873 }
1874
1875 show_list() {
1876     suffix=_$1
1877     shift
1878     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1879     exit 0
1880 }
1881
1882 for opt do
1883     optval="${opt#*=}"
1884     case "$opt" in
1885     --extra-ldflags=*) add_ldflags $optval
1886     ;;
1887     --extra-libs=*) add_extralibs $optval
1888     ;;
1889     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1890     ;;
1891     --enable-debug=*) debuglevel="$optval"
1892     ;;
1893     --disable-everything)
1894     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1895     ;;
1896     --enable-*=*|--disable-*=*)
1897     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1898     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1899     eval list=\$$(toupper $thing)_LIST
1900     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1901     $action $(filter "$name" $list)
1902     ;;
1903     --enable-?*|--disable-?*)
1904     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1905     if is_in $option $COMPONENT_LIST; then
1906         test $action = disable && action=unset
1907         eval $action \$$(toupper ${option%s})_LIST
1908     elif is_in $option $CMDLINE_SELECT; then
1909         $action $option
1910     else
1911         die_unknown $opt
1912     fi
1913     ;;
1914     --list-*)
1915         NAME="${opt#--list-}"
1916         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1917         NAME=${NAME%s}
1918         eval show_list $NAME \$$(toupper $NAME)_LIST
1919     ;;
1920     --help|-h) show_help
1921     ;;
1922     *)
1923     optname="${opt%%=*}"
1924     optname="${optname#--}"
1925     optname=$(echo "$optname" | sed 's/-/_/g')
1926     if is_in $optname $CMDLINE_SET; then
1927         eval $optname='$optval'
1928     elif is_in $optname $CMDLINE_APPEND; then
1929         append $optname "$optval"
1930     else
1931          die_unknown $opt
1932     fi
1933     ;;
1934     esac
1935 done
1936
1937 disabled logging && logfile=/dev/null
1938
1939 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1940 set >> $logfile
1941
1942 test -n "$cross_prefix" && enable cross_compile
1943
1944 if enabled cross_compile; then
1945     test -n "$arch" && test -n "$target_os" ||
1946         die "Must specify target arch and OS when cross-compiling"
1947 fi
1948
1949 set_default arch target_os
1950
1951 ar_default="${cross_prefix}${ar_default}"
1952 cc_default="${cross_prefix}${cc_default}"
1953 cxx_default="${cross_prefix}${cxx_default}"
1954 nm_default="${cross_prefix}${nm_default}"
1955 pkg_config_default="${cross_prefix}${pkg_config_default}"
1956 ranlib="${cross_prefix}${ranlib}"
1957 strip_default="${cross_prefix}${strip_default}"
1958
1959 sysinclude_default="${sysroot}/usr/include"
1960
1961 set_default cc cxx nm pkg_config strip sysinclude
1962 enabled cross_compile || host_cc_default=$cc
1963 set_default host_cc
1964
1965 if ! $pkg_config --version >/dev/null 2>&1; then
1966     warn "$pkg_config not found, library detection may fail."
1967     pkg_config=false
1968 fi
1969
1970 exesuf() {
1971     case $1 in
1972         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1973     esac
1974 }
1975
1976 EXESUF=$(exesuf $target_os)
1977 HOSTEXESUF=$(exesuf $host_os)
1978
1979 # set temporary file name
1980 : ${TMPDIR:=$TEMPDIR}
1981 : ${TMPDIR:=$TMP}
1982 : ${TMPDIR:=/tmp}
1983
1984 if ! check_cmd mktemp -u XXXXXX; then
1985     # simple replacement for missing mktemp
1986     # NOT SAFE FOR GENERAL USE
1987     mktemp(){
1988         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1989     }
1990 fi
1991
1992 tmpfile(){
1993     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1994         (set -C; exec > $tmp) 2>/dev/null ||
1995         die "Unable to create temporary file in $TMPDIR."
1996     append TMPFILES $tmp
1997     eval $1=$tmp
1998 }
1999
2000 trap 'rm -f -- $TMPFILES' EXIT
2001
2002 tmpfile TMPC  .c
2003 tmpfile TMPCPP .cpp
2004 tmpfile TMPE  $EXESUF
2005 tmpfile TMPH  .h
2006 tmpfile TMPO  .o
2007 tmpfile TMPS  .S
2008 tmpfile TMPV  .ver
2009 tmpfile TMPSH .sh
2010 tmpfile TMPASM .asm
2011
2012 unset -f mktemp
2013
2014 chmod +x $TMPE
2015
2016 # make sure we can execute files in $TMPDIR
2017 cat > $TMPSH 2>> $logfile <<EOF
2018 #! /bin/sh
2019 EOF
2020 chmod +x $TMPSH >> $logfile 2>&1
2021 if ! $TMPSH >> $logfile 2>&1; then
2022     cat <<EOF
2023 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2024 variable to another directory and make sure that it is not mounted noexec.
2025 EOF
2026     die "Sanity test failed."
2027 fi
2028
2029 filter_cflags=echo
2030 filter_cppflags=echo
2031 filter_asflags=echo
2032
2033 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2034     cc_type=llvm_gcc
2035     cc_version=__VERSION__
2036     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2037     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2038     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2039     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2040     speed_cflags='-O3'
2041     size_cflags='-Os'
2042 elif $cc -v 2>&1 | grep -qi ^gcc; then
2043     cc_type=gcc
2044     cc_version=__VERSION__
2045     gcc_version=$($cc --version | head -n1)
2046     gcc_basever=$($cc -dumpversion)
2047     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2048     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2049     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2050     if ! $cc -dumpversion | grep -q '^2\.'; then
2051         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2052         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2053     fi
2054     speed_cflags='-O3'
2055     size_cflags='-Os'
2056 elif $cc --version 2>/dev/null | grep -q Intel; then
2057     cc_type=icc
2058     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2059     cc_ident=$($cc --version | head -n1)
2060     icc_version=$($cc -dumpversion)
2061     CC_DEPFLAGS='-MMD'
2062     AS_DEPFLAGS='-MMD'
2063     speed_cflags='-O3'
2064     size_cflags='-Os'
2065     noopt_cflags='-O1'
2066 elif $cc -v 2>&1 | grep -q xlc; then
2067     cc_type=xlc
2068     cc_version="AV_STRINGIFY(__IBMC__)"
2069     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2070     speed_cflags='-O5'
2071     size_cflags='-O5 -qcompact'
2072 elif $cc -V 2>/dev/null | grep -q Compaq; then
2073     cc_type=ccc
2074     cc_version="AV_STRINGIFY(__DECC_VER)"
2075     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2076     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2077     debuglevel=3
2078     add_ldflags -Wl,-z,now # calls to libots crash without this
2079     speed_cflags='-fast'
2080     size_cflags='-O1'
2081 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2082     test -d "$sysroot" || die "No valid sysroot specified."
2083     cc_type=armcc
2084     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2085     cc_ident=$($cc --vsn | head -n1)
2086     armcc_conf="$PWD/armcc.conf"
2087     $cc --arm_linux_configure                 \
2088         --arm_linux_config_file="$armcc_conf" \
2089         --configure_sysroot="$sysroot"        \
2090         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2091         die "Error creating armcc configuration file."
2092     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2093     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2094     as_default="${cross_prefix}gcc"
2095     CC_DEPFLAGS='-MMD'
2096     AS_DEPFLAGS='-MMD'
2097     speed_cflags='-O3'
2098     size_cflags='-Os'
2099     filter_asflags="filter_out -W${armcc_opt}*"
2100 elif $cc -version 2>/dev/null | grep -q TMS470; then
2101     cc_type=tms470
2102     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2103     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2104     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2105     CC_O='-fr=$(@D)'
2106     as_default="${cross_prefix}gcc"
2107     ld_default="${cross_prefix}gcc"
2108     TMPO=$(basename $TMPC .c).o
2109     append TMPFILES $TMPO
2110     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2111     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2112     AS_DEPFLAGS='-MMD'
2113     speed_cflags='-O3 -mf=5'
2114     size_cflags='-O3 -mf=2'
2115     filter_cflags=tms470_flags
2116     tms470_flags(){
2117         for flag; do
2118             case $flag in
2119                 -march=*|-mcpu=*)
2120                     case "${flag#*=}" in
2121                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2122                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2123                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2124                         armv6*|arm11*)          echo -mv=6   ;;
2125                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2126                                                 echo -mv=5e  ;;
2127                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2128                     esac
2129                     ;;
2130                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2131                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2132                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2133                 -msoft-float)   echo --float_support=vfplib       ;;
2134                 -O[0-3]|-mf=*)  echo $flag                        ;;
2135                 -g)             echo -g -mn                       ;;
2136                 -pds=*)         echo $flag                        ;;
2137             esac
2138         done
2139     }
2140 elif $cc -v 2>&1 | grep -q clang; then
2141     cc_type=clang
2142     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2143         cc_version=__clang_version__ || cc_version=__VERSION__
2144     cc_ident=$($cc --version | head -n1)
2145     CC_DEPFLAGS='-MMD'
2146     AS_DEPFLAGS='-MMD'
2147     speed_cflags='-O3'
2148     size_cflags='-Os'
2149 elif $cc -V 2>&1 | grep -q Sun; then
2150     cc_type=suncc
2151     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2152     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2153     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2154     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2155     add_ldflags -xc99
2156     speed_cflags='-O5'
2157     size_cflags='-O5 -xspace'
2158     filter_cflags=suncc_flags
2159     suncc_flags(){
2160         for flag; do
2161             case $flag in
2162                 -march=*|-mcpu=*)
2163                     case "${flag#*=}" in
2164                         native)                   echo -xtarget=native       ;;
2165                         v9|niagara)               echo -xarch=sparc          ;;
2166                         ultrasparc)               echo -xarch=sparcvis       ;;
2167                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2168                         i586|pentium)             echo -xchip=pentium        ;;
2169                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2170                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2171                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2172                         pentium4*)          echo -xtarget=pentium4           ;;
2173                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2174                         *-sse3)             echo -xarch=sse3                 ;;
2175                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2176                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2177                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2178                         k8|opteron|athlon64|athlon-fx)
2179                                                   echo -xarch=sse2a          ;;
2180                         athlon*)                  echo -xarch=pentium_proa   ;;
2181                     esac
2182                     ;;
2183                 -std=c99)             echo -xc99              ;;
2184                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2185                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2186                 -W*,*)                echo $flag              ;;
2187                 -f*-*|-W*)                                    ;;
2188                 *)                    echo $flag              ;;
2189             esac
2190         done
2191     }
2192 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2193     cc_type=pathscale
2194     cc_version=__PATHSCALE__
2195     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2196     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2197     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2198     speed_cflags='-O2'
2199     size_cflags='-Os'
2200     filter_cflags='filter_out -Wdisabled-optimization'
2201 elif $cc -v 2>&1 | grep -q Open64; then
2202     cc_type=open64
2203     cc_version=__OPEN64__
2204     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2205     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2206     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2207     speed_cflags='-O2'
2208     size_cflags='-Os'
2209     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2210 fi
2211
2212 test -n "$cc_type" && enable $cc_type ||
2213     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2214
2215 : ${as_default:=$cc}
2216 : ${dep_cc_default:=$cc}
2217 : ${ld_default:=$cc}
2218 set_default ar as dep_cc ld
2219
2220 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2221 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2222 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2223
2224 add_cflags $extra_cflags
2225 add_cxxflags $extra_cxxflags
2226 add_asflags $extra_cflags
2227
2228 if test -n "$sysroot"; then
2229     case "$cc_type" in
2230         gcc|llvm_gcc|clang)
2231             add_cppflags --sysroot="$sysroot"
2232             add_ldflags --sysroot="$sysroot"
2233         ;;
2234         tms470)
2235             add_cppflags -I"$sysinclude"
2236             add_ldflags  --sysroot="$sysroot"
2237         ;;
2238     esac
2239 fi
2240
2241 if test "$cpu" = host; then
2242     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2243
2244     case "$cc_type" in
2245         gcc|llvm_gcc)
2246             check_native(){
2247                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2248                 sed -n "/cc1.*$1=/{
2249                             s/.*$1=\\([^ ]*\\).*/\\1/
2250                             p
2251                             q
2252                         }" $TMPE
2253             }
2254             cpu=$(check_native -march || check_native -mcpu)
2255         ;;
2256     esac
2257
2258     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2259 fi
2260
2261 # Deal with common $arch aliases
2262 case "$arch" in
2263     arm*)
2264         arch="arm"
2265     ;;
2266     mips|mipsel|IP*)
2267         arch="mips"
2268     ;;
2269     mips64*)
2270         arch="mips"
2271         subarch="mips64"
2272     ;;
2273     parisc|hppa)
2274         arch="parisc"
2275     ;;
2276     parisc64|hppa64)
2277         arch="parisc"
2278         subarch="parisc64"
2279     ;;
2280     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2281         arch="ppc"
2282     ;;
2283     s390|s390x)
2284         arch="s390"
2285     ;;
2286     sh4|sh)
2287         arch="sh4"
2288     ;;
2289     sun4u|sparc64)
2290         arch="sparc"
2291         subarch="sparc64"
2292     ;;
2293     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2294         arch="x86"
2295     ;;
2296 esac
2297
2298 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2299 enable $arch
2300
2301 # Add processor-specific flags
2302 if test "$cpu" = generic; then
2303     : do nothing
2304 elif enabled ppc; then
2305
2306     case $(tolower $cpu) in
2307         601|ppc601|powerpc601)
2308             cpuflags="-mcpu=601"
2309             disable altivec
2310         ;;
2311         603*|ppc603*|powerpc603*)
2312             cpuflags="-mcpu=603"
2313             disable altivec
2314         ;;
2315         604*|ppc604*|powerpc604*)
2316             cpuflags="-mcpu=604"
2317             disable altivec
2318         ;;
2319         g3|75*|ppc75*|powerpc75*)
2320             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2321             disable altivec
2322         ;;
2323         g4|745*|ppc745*|powerpc745*)
2324             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2325         ;;
2326         74*|ppc74*|powerpc74*)
2327             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2328         ;;
2329         g5|970|ppc970|powerpc970|power4*)
2330             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2331         ;;
2332         cell)
2333             cpuflags="-mcpu=cell"
2334             enable ldbrx
2335         ;;
2336         e500v2)
2337             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2338             disable altivec
2339         ;;
2340         e500)
2341             cpuflags="-mcpu=8540 -mhard-float"
2342             disable altivec
2343         ;;
2344     esac
2345
2346 elif enabled x86; then
2347
2348     case $cpu in
2349         i[345]86|pentium)
2350             cpuflags="-march=$cpu"
2351             disable mmx
2352         ;;
2353         # targets that do NOT support conditional mov (cmov)
2354         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2355             cpuflags="-march=$cpu"
2356             disable cmov
2357         ;;
2358         # targets that do support conditional mov (cmov)
2359         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2360             cpuflags="-march=$cpu"
2361             enable cmov
2362             enable fast_cmov
2363         ;;
2364         # targets that do support conditional mov but on which it's slow
2365         pentium4|pentium4m|prescott|nocona)
2366             cpuflags="-march=$cpu"
2367             enable cmov
2368             disable fast_cmov
2369         ;;
2370     esac
2371
2372 elif enabled sparc; then
2373
2374     case $cpu in
2375         niagara)
2376             cpuflags="-mcpu=$cpu"
2377             disable vis
2378         ;;
2379         sparc64)
2380             cpuflags="-mcpu=v9"
2381         ;;
2382     esac
2383
2384 elif enabled arm; then
2385
2386     case $cpu in
2387         armv*)
2388             cpuflags="-march=$cpu"
2389             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2390         ;;
2391         *)
2392             cpuflags="-mcpu=$cpu"
2393             case $cpu in
2394                 cortex-a*)                               subarch=armv7a  ;;
2395                 cortex-r*)                               subarch=armv7r  ;;
2396                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2397                 arm11*)                                  subarch=armv6   ;;
2398                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2399                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2400             esac
2401         ;;
2402     esac
2403
2404 elif enabled alpha; then
2405
2406     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2407
2408 elif enabled bfin; then
2409
2410     cpuflags="-mcpu=$cpu"
2411
2412 elif enabled mips; then
2413
2414     cpuflags="-march=$cpu"
2415
2416 elif enabled avr32; then
2417
2418     case $cpu in
2419         ap7[02]0[0-2])
2420             subarch="avr32_ap"
2421             cpuflags="-mpart=$cpu"
2422         ;;
2423         ap)
2424             subarch="avr32_ap"
2425             cpuflags="-march=$cpu"
2426         ;;
2427         uc3[ab]*)
2428             subarch="avr32_uc"
2429             cpuflags="-mcpu=$cpu"
2430         ;;
2431         uc)
2432             subarch="avr32_uc"
2433             cpuflags="-march=$cpu"
2434         ;;
2435     esac
2436
2437 fi
2438
2439 add_cflags $cpuflags
2440 add_asflags $cpuflags
2441
2442 # compiler sanity check
2443 check_exec <<EOF
2444 int main(void){ return 0; }
2445 EOF
2446 if test "$?" != 0; then
2447     echo "$cc is unable to create an executable file."
2448     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2449         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2450         echo "Only do this if you know what cross compiling means."
2451     fi
2452     die "C compiler test failed."
2453 fi
2454
2455 add_cppflags -D_ISOC99_SOURCE
2456 add_cxxflags -D__STDC_CONSTANT_MACROS
2457 check_cflags -std=c99
2458 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2459 #include <stdlib.h>
2460 EOF
2461 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2462 #include <stdlib.h>
2463 EOF
2464
2465 check_host_cflags -std=c99
2466 check_host_cflags -Wall
2467
2468 case "$arch" in
2469     alpha|ia64|mips|parisc|sparc)
2470         spic=$shared
2471     ;;
2472     x86)
2473         subarch="x86_32"
2474         check_cc <<EOF && subarch="x86_64"
2475         int test[(int)sizeof(char*) - 7];
2476 EOF
2477         if test "$subarch" = "x86_64"; then
2478             spic=$shared
2479         fi
2480     ;;
2481     ppc)
2482         check_cc <<EOF && subarch="ppc64"
2483         int test[(int)sizeof(char*) - 7];
2484 EOF
2485     ;;
2486 esac
2487
2488 enable $subarch
2489 enabled spic && enable pic
2490
2491 # OS specific
2492 case $target_os in
2493     haiku)
2494         prefix_default="/boot/common"
2495         network_extralibs="-lnetwork"
2496         host_libs=
2497         ;;
2498     sunos)
2499         FFSERVERLDFLAGS=""
2500         SHFLAGS='-shared -Wl,-h,$$(@F)'
2501         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2502         network_extralibs="-lsocket -lnsl"
2503         add_cppflags -D__EXTENSIONS__
2504         # When using suncc to build, the Solaris linker will mark
2505         # an executable with each instruction set encountered by
2506         # the Solaris assembler.  As our libraries contain their own
2507         # guards for processor-specific code, instead suppress
2508         # generation of the HWCAPS ELF section on Solaris x86 only.
2509         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2510         nm_opts='-P -g'
2511         ;;
2512     netbsd)
2513         disable symver
2514         oss_indev_extralibs="-lossaudio"
2515         oss_outdev_extralibs="-lossaudio"
2516         ;;
2517     openbsd)
2518         enable malloc_aligned
2519         # On OpenBSD 4.5. the compiler does not use PIC unless
2520         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2521         # however the generated executable will not do anything
2522         # (simply quits with exit-code 1, no crash, no output).
2523         # Thus explicitly enable PIC here.
2524         enable pic
2525         disable symver
2526         SHFLAGS='-shared'
2527         oss_indev_extralibs="-lossaudio"
2528         oss_outdev_extralibs="-lossaudio"
2529         ;;
2530     dragonfly)
2531         enable malloc_aligned
2532         disable symver
2533         ;;
2534     freebsd)
2535         enable malloc_aligned
2536         ;;
2537     bsd/os)
2538         add_extralibs -lpoll -lgnugetopt
2539         strip="strip -d"
2540         ;;
2541     darwin)
2542         enable malloc_aligned
2543         gas="gas-preprocessor.pl $cc"
2544         enabled ppc && add_asflags -force_cpusubtype_ALL
2545         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2546         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2547         strip="${strip} -x"
2548         add_ldflags -Wl,-dynamic,-search_paths_first
2549         SLIBSUF=".dylib"
2550         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2551         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2552         FFSERVERLDFLAGS=-Wl,-bind_at_load
2553         objformat="macho"
2554         enabled x86_64 && objformat="macho64"
2555         enabled_any pic shared ||
2556             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2557         ;;
2558     mingw32*)
2559         if test $target_os = "mingw32ce"; then
2560             disable network
2561         else
2562             target_os=mingw32
2563         fi
2564         LIBTARGET=i386
2565         if enabled x86_64; then
2566             enable malloc_aligned
2567             LIBTARGET=x64
2568         elif enabled arm; then
2569             LIBTARGET=arm-wince
2570         fi
2571         shlibdir_default="$bindir_default"
2572         SLIBPREF=""
2573         SLIBSUF=".dll"
2574         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2575         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2576         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2577         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2578         SLIB_INSTALL_LINKS=
2579         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2580         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2581         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'
2582         objformat="win32"
2583         enable dos_paths
2584         check_cflags -fno-common
2585         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2586                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2587                 die "ERROR: MinGW runtime version must be >= 3.15."
2588         add_cppflags -U__STRICT_ANSI__
2589         ;;
2590     cygwin*)
2591         target_os=cygwin
2592         shlibdir_default="$bindir_default"
2593         SLIBPREF="cyg"
2594         SLIBSUF=".dll"
2595         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2596         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2597         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2598         objformat="win32"
2599         enable dos_paths
2600         check_cflags -fno-common
2601         add_cppflags -U__STRICT_ANSI__
2602         ;;
2603     *-dos|freedos|opendos)
2604         network_extralibs="-lsocket"
2605         objformat="coff"
2606         enable dos_paths
2607         add_cppflags -U__STRICT_ANSI__
2608         ;;
2609     linux)
2610         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2611         enable dv1394
2612         ;;
2613     irix*)
2614         target_os=irix
2615         ranlib="echo ignoring ranlib"
2616         ;;
2617     os/2*)
2618         strip="lxlite -CS"
2619         ln_s="cp -f"
2620         objformat="aout"
2621         add_cppflags -D_GNU_SOURCE
2622         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2623         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2624         FFSERVERLDFLAGS=""
2625         LIBSUF="_s.a"
2626         SLIBPREF=""
2627         SLIBSUF=".dll"
2628         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2629         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2630         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2631           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2632           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2633           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2634           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2635           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2636         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2637           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2638         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2639         enable dos_paths
2640         ;;
2641     gnu/kfreebsd)
2642         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2643         ;;
2644     gnu)
2645         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2646         ;;
2647     qnx)
2648         add_cppflags -D_QNX_SOURCE
2649         network_extralibs="-lsocket"
2650         ;;
2651     symbian)
2652         SLIBSUF=".dll"
2653         enable dos_paths
2654         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2655         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2656         add_ldflags -Wl,--target1-abs,--no-undefined \
2657                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2658                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2659         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2660                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2661                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2662         ;;
2663     none)
2664         ;;
2665     *)
2666         die "Unknown OS '$target_os'."
2667         ;;
2668 esac
2669
2670 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2671
2672 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2673
2674 set_default $PATHS_LIST
2675
2676 # we need to build at least one lib type
2677 if ! enabled_any static shared; then
2678     cat <<EOF
2679 At least one library type must be built.
2680 Specify --enable-static to build the static libraries or --enable-shared to
2681 build the shared libraries as well. To only build the shared libraries specify
2682 --disable-static in addition to --enable-shared.
2683 EOF
2684     exit 1;
2685 fi
2686
2687 die_license_disabled() {
2688     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2689 }
2690
2691 die_license_disabled gpl libcdio
2692 die_license_disabled gpl libx264
2693 die_license_disabled gpl libxavs
2694 die_license_disabled gpl libxvid
2695 die_license_disabled gpl x11grab
2696
2697 die_license_disabled nonfree libaacplus
2698 die_license_disabled nonfree libfaac
2699
2700 die_license_disabled version3 libopencore_amrnb
2701 die_license_disabled version3 libopencore_amrwb
2702 die_license_disabled version3 libvo_aacenc
2703 die_license_disabled version3 libvo_amrwbenc
2704
2705 ! enabled gpl && enabled version2 && die "LGPLv2 mode is unsupported"
2706 enabled version3 && enabled version2 && ! enabled nonfree && die "GPLv2 (not v2+) and GPLv3 without --enable-nonfree"
2707
2708 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2709 enabled version2 && enabled gpl && enable gplv2
2710
2711 disabled optimizations || check_cflags -fomit-frame-pointer
2712
2713 enable_pic() {
2714     enable pic
2715     add_cppflags -DPIC
2716     add_cflags   -fPIC
2717     add_asflags  -fPIC
2718 }
2719
2720 enabled pic && enable_pic
2721
2722 check_cc <<EOF || die "Symbol mangling check failed."
2723 int ff_extern;
2724 EOF
2725 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2726 extern_prefix=${sym%%ff_extern*}
2727
2728 check_cc <<EOF && enable inline_asm
2729 void foo(void) { __asm__ volatile ("" ::); }
2730 EOF
2731
2732 _restrict=
2733 for restrict_keyword in restrict __restrict__ __restrict; do
2734     check_cc <<EOF && _restrict=$restrict_keyword && break
2735 void foo(char * $restrict_keyword p);
2736 EOF
2737 done
2738
2739 check_cc <<EOF && enable attribute_packed
2740 struct { int x; } __attribute__((packed)) x;
2741 EOF
2742
2743 check_cc <<EOF && enable attribute_may_alias
2744 union { int x; } __attribute__((may_alias)) x;
2745 EOF
2746
2747 check_cc <<EOF || die "endian test failed"
2748 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2749 EOF
2750 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2751
2752 if enabled alpha; then
2753
2754     check_cflags -mieee
2755
2756 elif enabled arm; then
2757
2758     enabled thumb && check_cflags -mthumb || check_cflags -marm
2759     nogas=die
2760
2761     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2762         enable vfp_args
2763     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2764         case "${cross_prefix:-$cc}" in
2765             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2766             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2767 __asm__ (".eabi_attribute 28, 1");
2768 int main(void) { return 0; }
2769 EOF
2770         esac
2771         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2772     fi
2773
2774     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2775     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2776     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2777     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2778     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2779     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2780     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2781
2782     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2783
2784     enabled_all armv6t2 shared !pic && enable_pic
2785
2786 elif enabled mips; then
2787
2788     check_asm loongson '"dmult.g $1, $2, $3"'
2789     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2790
2791 elif enabled ppc; then
2792
2793     enable local_aligned_8 local_aligned_16
2794
2795     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2796     check_asm ibm_asm   '"add 0, 0, 0"'
2797     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2798     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2799
2800     # AltiVec flags: The FSF version of GCC differs from the Apple version
2801     if enabled altivec; then
2802         nogas=warn
2803         check_cflags -maltivec -mabi=altivec &&
2804         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2805         check_cflags -faltivec
2806
2807         # check if our compiler supports Motorola AltiVec C API
2808         check_cc <<EOF || disable altivec
2809 $inc_altivec_h
2810 int main(void) {
2811     vector signed int v1, v2, v3;
2812     v1 = vec_add(v2,v3);
2813     return 0;
2814 }
2815 EOF
2816
2817         # check if our compiler supports braces for vector declarations
2818         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2819 $inc_altivec_h
2820 int main (void) { (vector int) {1}; return 0; }
2821 EOF
2822     fi
2823
2824 elif enabled sparc; then
2825
2826     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2827         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2828
2829 elif enabled x86; then
2830
2831     enable local_aligned_8 local_aligned_16
2832
2833     # check whether EBP is available on x86
2834     # As 'i' is stored on the stack, this program will crash
2835     # if the base pointer is used to access it because the
2836     # base pointer is cleared in the inline assembly code.
2837     check_exec_crash <<EOF && enable ebp_available
2838     volatile int i=0;
2839     __asm__ volatile (
2840         "xorl %%ebp, %%ebp"
2841     ::: "%ebp");
2842     return i;
2843 EOF
2844
2845     # check whether EBX is available on x86
2846     check_asm ebx_available '""::"b"(0)' &&
2847         check_asm ebx_available '"":::"%ebx"'
2848
2849     # check whether xmm clobbers are supported
2850     check_asm xmm_clobbers '"":::"%xmm0"'
2851
2852     # check whether binutils is new enough to compile SSSE3/MMX2
2853     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2854     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2855
2856     check_asm bswap '"bswap %%eax" ::: "%eax"'
2857
2858     if ! disabled_any asm mmx yasm; then
2859         if check_cmd $yasmexe --version; then
2860             enabled x86_64 && yasm_extra="-m amd64"
2861             yasm_debug="-g dwarf2"
2862         elif check_cmd nasm -v; then
2863             yasmexe=nasm
2864             yasm_debug="-g -F dwarf"
2865             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2866         fi
2867
2868         YASMFLAGS="-f $objformat $yasm_extra"
2869         enabled pic               && append YASMFLAGS "-DPIC"
2870         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2871         case "$objformat" in
2872             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2873         esac
2874
2875         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2876             die "yasm not found, use --disable-yasm for a crippled build"
2877         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2878     fi
2879
2880     case "$cpu" in
2881         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2882             disable fast_clz
2883         ;;
2884     esac
2885
2886 fi
2887
2888 if enabled asm; then
2889     as=${gas:=$as}
2890     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2891         $nogas "GNU assembler not found, install gas-preprocessor"
2892 fi
2893
2894 check_ldflags -Wl,--as-needed
2895
2896 if check_func dlopen; then
2897     ldl=
2898 elif check_func dlopen -ldl; then
2899     ldl=-ldl
2900 fi
2901
2902 if enabled network; then
2903     check_type "sys/types.h sys/socket.h" socklen_t
2904     check_type netdb.h "struct addrinfo"
2905     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2906     check_type netinet/in.h "struct sockaddr_in6"
2907     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2908     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2909     # Prefer arpa/inet.h over winsock2
2910     if check_header arpa/inet.h ; then
2911         check_func closesocket
2912     elif check_header winsock2.h ; then
2913         check_func_headers winsock2.h closesocket -lws2 && \
2914             network_extralibs="-lws2" || \
2915         { check_func_headers winsock2.h closesocket -lws2_32 && \
2916             network_extralibs="-lws2_32"; }
2917         check_type ws2tcpip.h socklen_t
2918         check_type ws2tcpip.h "struct addrinfo"
2919         check_type ws2tcpip.h "struct ipv6_mreq"
2920         check_type ws2tcpip.h "struct sockaddr_in6"
2921         check_type ws2tcpip.h "struct sockaddr_storage"
2922         check_struct winsock2.h "struct sockaddr" sa_len
2923     else
2924         disable network
2925     fi
2926 fi
2927
2928 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2929 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2930
2931 check_func  fcntl
2932 check_func  fork
2933 check_func  getaddrinfo $network_extralibs
2934 check_func  gethrtime
2935 check_func  getrusage
2936 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2937 check_func  inet_aton $network_extralibs
2938 check_func  isatty
2939 check_func  localtime_r
2940 check_func  ${malloc_prefix}memalign            && enable memalign
2941 check_func  mkstemp
2942 check_func  mmap
2943 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2944 check_func  setrlimit
2945 check_func  strerror_r
2946 check_func  strptime
2947 check_func  strtok_r
2948 check_func_headers conio.h kbhit
2949 check_func_headers windows.h PeekNamedPipe
2950 check_func_headers io.h setmode
2951 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2952 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2953 check_func_headers windows.h GetProcessTimes
2954 check_func_headers windows.h MapViewOfFile
2955 check_func_headers windows.h VirtualAlloc
2956
2957 check_header dlfcn.h
2958 check_header dxva2api.h -D_WIN32_WINNT=0x0600
2959 check_header libcrystalhd/libcrystalhd_if.h
2960 check_header malloc.h
2961 check_header poll.h
2962 check_header sys/mman.h
2963 check_header sys/resource.h
2964 check_header sys/select.h
2965 check_header termios.h
2966 check_header vdpau/vdpau.h
2967 check_header vdpau/vdpau_x11.h
2968 check_header X11/extensions/XvMClib.h
2969
2970 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2971 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2972
2973 # check for some common methods of building with pthread support
2974 # do this before the optional library checks as some of them require pthreads
2975 if ! disabled pthreads && ! enabled w32threads; then
2976     enable pthreads
2977     if check_func pthread_create; then
2978         :
2979     elif check_func pthread_create -pthread; then
2980         add_cflags -pthread
2981         add_extralibs -pthread
2982     elif check_func pthread_create -pthreads; then
2983         add_cflags -pthreads
2984         add_extralibs -pthreads
2985     elif check_func pthread_create -lpthreadGC2; then
2986         add_extralibs -lpthreadGC2
2987     elif ! check_lib pthread.h pthread_create -lpthread; then
2988         disable pthreads
2989     fi
2990 fi
2991
2992 for thread in $THREADS_LIST; do
2993     if enabled $thread; then
2994         test -n "$thread_type" &&
2995             die "ERROR: Only one thread type must be selected." ||
2996             thread_type="$thread"
2997     fi
2998 done
2999
3000 check_lib math.h sin -lm && LIBM="-lm"
3001 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3002 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3003
3004 check_mathfunc exp2
3005 check_mathfunc exp2f
3006 check_mathfunc llrint
3007 check_mathfunc llrintf
3008 check_mathfunc log2
3009 check_mathfunc log2f
3010 check_mathfunc lrint
3011 check_mathfunc lrintf
3012 check_mathfunc round
3013 check_mathfunc roundf
3014 check_mathfunc trunc
3015 check_mathfunc truncf
3016
3017 # these are off by default, so fail if requested and not available
3018 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3019 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
3020 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3021 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3022 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
3023 enabled libdirac   && require_pkg_config dirac                          \
3024     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3025     "dirac_decoder_init dirac_encoder_init"
3026 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3027 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3028 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3029 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3030 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3031 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3032 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3033 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3034 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3035 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3036 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3037 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3038 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3039     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3040     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3041 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
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 >= 115" ||
3052                         die "ERROR: libx264 version must be >= 0.115."; }
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 enabled extra_warnings && check_cflags -Winline
3163
3164 # add some linker flags
3165 check_ldflags -Wl,--warn-common
3166 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3167 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3168
3169 echo "X{};" > $TMPV
3170 if test_ldflags -Wl,--version-script,$TMPV; then
3171     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3172     check_cc <<EOF && enable symver_asm_label
3173 void ff_foo(void) __asm__ ("av_foo@VERSION");
3174 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3175 EOF
3176     check_cc <<EOF && enable symver_gnu_asm
3177 __asm__(".symver ff_foo,av_foo@VERSION");
3178 void ff_foo(void) {}
3179 EOF
3180 fi
3181
3182 if [ -n "$optflags" ]; then
3183     add_cflags $optflags
3184 elif enabled small; then
3185     add_cflags $size_cflags
3186 elif enabled optimizations; then
3187     add_cflags $speed_cflags
3188 else
3189     add_cflags $noopt_cflags
3190 fi
3191 check_cflags -fno-math-errno
3192 check_cflags -fno-signed-zeros
3193 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3194 int x;
3195 EOF
3196
3197
3198 if enabled icc; then
3199     # Just warnings, no remarks
3200     check_cflags -w1
3201     # -wd: Disable following warnings
3202     # 144, 167, 556: -Wno-pointer-sign
3203     # 1292: attribute "foo" ignored
3204     # 10006: ignoring unknown option -fno-signed-zeros
3205     # 10148: ignoring unknown option -Wno-parentheses
3206     # 10156: ignoring option '-W'; no argument required
3207     check_cflags -wd144,167,556,1292,10006,10148,10156
3208     # 11030: Warning unknown option --as-needed
3209     # 10156: ignoring option '-export'; no argument required
3210     check_ldflags -wd10156,11030
3211     # Allow to compile with optimizations
3212     check_ldflags -march=$cpu
3213     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3214     enable ebp_available
3215     if enabled x86_32; then
3216         test ${icc_version%%.*} -ge 11 && \
3217             check_cflags -falign-stack=maintain-16-byte || \
3218             disable aligned_stack
3219     fi
3220 elif enabled ccc; then
3221     # disable some annoying warnings
3222     add_cflags -msg_disable cvtu32to64
3223     add_cflags -msg_disable embedcomment
3224     add_cflags -msg_disable needconstext
3225     add_cflags -msg_disable nomainieee
3226     add_cflags -msg_disable ptrmismatch1
3227     add_cflags -msg_disable unreachcode
3228 elif enabled gcc; then
3229     check_cflags -fno-tree-vectorize
3230     check_cflags -Werror=implicit-function-declaration
3231     check_cflags -Werror=missing-prototypes
3232 elif enabled llvm_gcc; then
3233     check_cflags -mllvm -stack-alignment=16
3234 elif enabled clang; then
3235     check_cflags -mllvm -stack-alignment=16
3236     check_cflags -Qunused-arguments
3237 elif enabled armcc; then
3238     # 2523: use of inline assembler is deprecated
3239     add_cflags -W${armcc_opt},--diag_suppress=2523
3240     add_cflags -W${armcc_opt},--diag_suppress=1207
3241     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3242     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3243     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3244     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3245 elif enabled tms470; then
3246     add_cflags -pds=824 -pds=837
3247 elif enabled pathscale; then
3248     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3249 fi
3250
3251 enabled_any $THREADS_LIST      && enable threads
3252
3253 check_deps $CONFIG_LIST       \
3254            $CONFIG_EXTRA      \
3255            $HAVE_LIST         \
3256            $DECODER_LIST      \
3257            $ENCODER_LIST      \
3258            $HWACCEL_LIST      \
3259            $PARSER_LIST       \
3260            $BSF_LIST          \
3261            $DEMUXER_LIST      \
3262            $MUXER_LIST        \
3263            $FILTER_LIST       \
3264            $INDEV_LIST        \
3265            $OUTDEV_LIST       \
3266            $PROTOCOL_LIST     \
3267            $ACODEC_TESTS      \
3268            $VCODEC_TESTS      \
3269            $LAVF_TESTS        \
3270            $LAVFI_TESTS       \
3271            $SEEK_TESTS        \
3272
3273 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3274
3275 if test $target_os = "haiku"; then
3276     disable memalign
3277     disable posix_memalign
3278 fi
3279
3280 ! enabled_any memalign posix_memalign malloc_aligned &&
3281     enabled_any $need_memalign && enable memalign_hack
3282
3283 echo "install prefix            $prefix"
3284 echo "source path               $source_path"
3285 echo "C compiler                $cc"
3286 echo "ARCH                      $arch ($cpu)"
3287 if test "$build_suffix" != ""; then
3288     echo "build suffix              $build_suffix"
3289 fi
3290 if test "$progs_suffix" != ""; then
3291     echo "progs suffix              $progs_suffix"
3292 fi
3293 if test "$extra_version" != ""; then
3294     echo "version string suffix     $extra_version"
3295 fi
3296 echo "big-endian                ${bigendian-no}"
3297 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3298 if enabled x86; then
3299     echo "${yasmexe}                      ${yasm-no}"
3300     echo "MMX enabled               ${mmx-no}"
3301     echo "MMX2 enabled              ${mmx2-no}"
3302     echo "3DNow! enabled            ${amd3dnow-no}"
3303     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3304     echo "SSE enabled               ${sse-no}"
3305     echo "SSSE3 enabled             ${ssse3-no}"
3306     echo "AVX enabled               ${avx-no}"
3307     echo "CMOV enabled              ${cmov-no}"
3308     echo "CMOV is fast              ${fast_cmov-no}"
3309     echo "EBX available             ${ebx_available-no}"
3310     echo "EBP available             ${ebp_available-no}"
3311 fi
3312 if enabled arm; then
3313     echo "ARMv5TE enabled           ${armv5te-no}"
3314     echo "ARMv6 enabled             ${armv6-no}"
3315     echo "ARMv6T2 enabled           ${armv6t2-no}"
3316     echo "ARM VFP enabled           ${armvfp-no}"
3317     echo "IWMMXT enabled            ${iwmmxt-no}"
3318     echo "NEON enabled              ${neon-no}"
3319 fi
3320 if enabled mips; then
3321     echo "MMI enabled               ${mmi-no}"
3322 fi
3323 if enabled ppc; then
3324     echo "AltiVec enabled           ${altivec-no}"
3325     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3326     echo "dcbzl available           ${dcbzl-no}"
3327 fi
3328 if enabled sparc; then
3329     echo "VIS enabled               ${vis-no}"
3330 fi
3331 echo "debug symbols             ${debug-no}"
3332 echo "strip symbols             ${stripping-no}"
3333 echo "optimize for size         ${small-no}"
3334 echo "optimizations             ${optimizations-no}"
3335 echo "static                    ${static-no}"
3336 echo "shared                    ${shared-no}"
3337 echo "postprocessing support    ${postproc-no}"
3338 echo "new filter support        ${avfilter-no}"
3339 echo "network support           ${network-no}"
3340 echo "threading support         ${thread_type-no}"
3341 echo "SDL support               ${sdl-no}"
3342 echo "Sun medialib support      ${mlib-no}"
3343 echo "libdxva2 enabled          ${dxva2-no}"
3344 echo "libva enabled             ${vaapi-no}"
3345 echo "libvdpau enabled          ${vdpau-no}"
3346 echo "AVISynth enabled          ${avisynth-no}"
3347 echo "libcelt enabled           ${libcelt-no}"
3348 echo "frei0r enabled            ${frei0r-no}"
3349 echo "libcdio support           ${libcdio-no}"
3350 echo "libdc1394 support         ${libdc1394-no}"
3351 echo "libdirac enabled          ${libdirac-no}"
3352 echo "libfaac enabled           ${libfaac-no}"
3353 echo "libaacplus enabled        ${libaacplus-no}"
3354 echo "libgsm enabled            ${libgsm-no}"
3355 echo "libmp3lame enabled        ${libmp3lame-no}"
3356 echo "libnut enabled            ${libnut-no}"
3357 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3358 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3359 echo "libopencv support         ${libopencv-no}"
3360 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3361 echo "librtmp enabled           ${librtmp-no}"
3362 echo "libschroedinger enabled   ${libschroedinger-no}"
3363 echo "libspeex enabled          ${libspeex-no}"
3364 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3365 echo "libtheora enabled         ${libtheora-no}"
3366 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3367 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3368 echo "libvorbis enabled         ${libvorbis-no}"
3369 echo "libvpx enabled            ${libvpx-no}"
3370 echo "libx264 enabled           ${libx264-no}"
3371 echo "libxavs enabled           ${libxavs-no}"
3372 echo "libxvid enabled           ${libxvid-no}"
3373 echo "openal enabled            ${openal-no}"
3374 echo "zlib enabled              ${zlib-no}"
3375 echo "bzlib enabled             ${bzlib-no}"
3376 echo
3377
3378 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3379     echo "Enabled ${type}s:"
3380     eval list=\$$(toupper $type)_LIST
3381     print_enabled '_*' $list | sort | pr -r -3 -t
3382     echo
3383 done
3384
3385 license="LGPL version 2.1 or later"
3386 if enabled nonfree; then
3387     license="nonfree and unredistributable"
3388 elif enabled gplv3; then
3389     license="GPL version 3 or later"
3390 elif enabled gplv2; then
3391     license="GPL version 2"
3392 elif enabled lgplv3; then
3393     license="LGPL version 3 or later"
3394 elif enabled gpl; then
3395     license="GPL version 2 or later"
3396 fi
3397
3398 echo "License: $license"
3399
3400 echo "Creating config.mak and config.h..."
3401
3402 test -e Makefile || $ln_s "$source_path/Makefile" .
3403
3404 enabled stripping || strip="echo skipping strip"
3405
3406 config_files="$TMPH config.mak"
3407
3408 cat > config.mak <<EOF
3409 # Automatically generated by configure - do not modify!
3410 ifndef FFMPEG_CONFIG_MAK
3411 FFMPEG_CONFIG_MAK=1
3412 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3413 prefix=$prefix
3414 LIBDIR=\$(DESTDIR)$libdir
3415 SHLIBDIR=\$(DESTDIR)$shlibdir
3416 INCDIR=\$(DESTDIR)$incdir
3417 BINDIR=\$(DESTDIR)$bindir
3418 DATADIR=\$(DESTDIR)$datadir
3419 MANDIR=\$(DESTDIR)$mandir
3420 SRC_PATH=$source_path
3421 ifndef MAIN_MAKEFILE
3422 SRC_PATH:=\$(SRC_PATH:.%=..%)
3423 endif
3424 CC_IDENT=$cc_ident
3425 ARCH=$arch
3426 CC=$cc
3427 CXX=$cxx
3428 AS=$as
3429 LD=$ld
3430 DEPCC=$dep_cc
3431 YASM=$yasmexe
3432 YASMDEP=$yasmexe
3433 AR=$ar
3434 RANLIB=$ranlib
3435 CP=cp -p
3436 LN_S=$ln_s
3437 STRIP=$strip
3438 CPPFLAGS=$CPPFLAGS
3439 CFLAGS=$CFLAGS
3440 CXXFLAGS=$CXXFLAGS
3441 ASFLAGS=$ASFLAGS
3442 AS_O=$CC_O
3443 CC_O=$CC_O
3444 CXX_O=$CXX_O
3445 LDFLAGS=$LDFLAGS
3446 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3447 SHFLAGS=$SHFLAGS
3448 YASMFLAGS=$YASMFLAGS
3449 BUILDSUF=$build_suffix
3450 PROGSSUF=$progs_suffix
3451 FULLNAME=$FULLNAME
3452 LIBPREF=$LIBPREF
3453 LIBSUF=$LIBSUF
3454 LIBNAME=$LIBNAME
3455 SLIBPREF=$SLIBPREF
3456 SLIBSUF=$SLIBSUF
3457 EXESUF=$EXESUF
3458 EXTRA_VERSION=$extra_version
3459 DEPFLAGS=$DEPFLAGS
3460 CCDEP=$CCDEP
3461 CXXDEP=$CXXDEP
3462 ASDEP=$ASDEP
3463 CC_DEPFLAGS=$CC_DEPFLAGS
3464 AS_DEPFLAGS=$AS_DEPFLAGS
3465 HOSTCC=$host_cc
3466 HOSTCFLAGS=$host_cflags
3467 HOSTEXESUF=$HOSTEXESUF
3468 HOSTLDFLAGS=$host_ldflags
3469 HOSTLIBS=$host_libs
3470 TARGET_EXEC=$target_exec
3471 TARGET_PATH=$target_path
3472 SDL_LIBS=$sdl_libs
3473 SDL_CFLAGS=$sdl_cflags
3474 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3475 EXTRALIBS=$extralibs
3476 INSTALL=$install
3477 LIBTARGET=${LIBTARGET}
3478 SLIBNAME=${SLIBNAME}
3479 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3480 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3481 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3482 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3483 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3484 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3485 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3486 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3487 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3488 NOREDZONE_FLAGS=$noredzone_flags
3489 EOF
3490
3491 get_version(){
3492     name=$1
3493     file=$source_path/$2
3494     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3495     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3496     lcname=$(tolower $name)
3497     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3498     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3499 }
3500
3501 get_version LIBSWSCALE  libswscale/swscale.h
3502 get_version LIBSWRESAMPLE libswresample/swresample.h
3503 get_version LIBPOSTPROC libpostproc/postprocess.h
3504 get_version LIBAVCODEC  libavcodec/version.h
3505 get_version LIBAVDEVICE libavdevice/avdevice.h
3506 get_version LIBAVFORMAT libavformat/version.h
3507 get_version LIBAVUTIL   libavutil/avutil.h
3508 get_version LIBAVFILTER libavfilter/avfilter.h
3509
3510 cat > $TMPH <<EOF
3511 /* Automatically generated by configure - do not modify! */
3512 #ifndef FFMPEG_CONFIG_H
3513 #define FFMPEG_CONFIG_H
3514 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3515 #define FFMPEG_LICENSE "$(c_escape $license)"
3516 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3517 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3518 #define CC_TYPE "$cc_type"
3519 #define CC_VERSION $cc_version
3520 #define restrict $_restrict
3521 #define EXTERN_PREFIX "${extern_prefix}"
3522 #define EXTERN_ASM ${extern_prefix}
3523 #define SLIBSUF "$SLIBSUF"
3524 EOF
3525
3526 test -n "$malloc_prefix" &&
3527     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3528
3529 if enabled small || disabled optimizations; then
3530     echo "#undef  av_always_inline"  >> $TMPH
3531     if enabled small; then
3532         echo "#define av_always_inline inline"  >> $TMPH
3533     else
3534         echo "#define av_always_inline av_unused"  >> $TMPH
3535     fi
3536 fi
3537
3538 if enabled yasm; then
3539     append config_files $TMPASM
3540     printf '' >$TMPASM
3541 fi
3542
3543 print_config ARCH_   "$config_files" $ARCH_LIST
3544 print_config HAVE_   "$config_files" $HAVE_LIST
3545 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3546                                      $CONFIG_EXTRA      \
3547                                      $DECODER_LIST      \
3548                                      $ENCODER_LIST      \
3549                                      $HWACCEL_LIST      \
3550                                      $PARSER_LIST       \
3551                                      $BSF_LIST          \
3552                                      $DEMUXER_LIST      \
3553                                      $MUXER_LIST        \
3554                                      $FILTER_LIST       \
3555                                      $PROTOCOL_LIST     \
3556                                      $INDEV_LIST        \
3557                                      $OUTDEV_LIST       \
3558
3559 cat >>config.mak <<EOF
3560 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3561 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3562 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3563 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3564 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3565 EOF
3566
3567 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3568 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3569
3570 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3571 cp_if_changed $TMPH config.h
3572 touch .config
3573
3574 enabled yasm && cp_if_changed $TMPASM config.asm
3575
3576 cat > $TMPH <<EOF
3577 /* Generated by ffconf */
3578 #ifndef AVUTIL_AVCONFIG_H
3579 #define AVUTIL_AVCONFIG_H
3580 EOF
3581
3582 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3583
3584 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3585
3586 cp_if_changed $TMPH libavutil/avconfig.h
3587
3588 test -n "$WARNINGS" && printf "\n$WARNINGS"
3589
3590 # build pkg-config files
3591
3592 pkgconfig_generate(){
3593 name=$1
3594 shortname=${name#lib}${build_suffix}
3595 comment=$2
3596 version=$3
3597 libs=$4
3598 requires=$5
3599 enabled ${name#lib} || return 0
3600 mkdir -p $name
3601 cat <<EOF > $name/$name.pc
3602 prefix=$prefix
3603 exec_prefix=\${prefix}
3604 libdir=$libdir
3605 includedir=$incdir
3606
3607 Name: $name
3608 Description: $comment
3609 Version: $version
3610 Requires: $(enabled shared || echo $requires)
3611 Requires.private: $(enabled shared && echo $requires)
3612 Conflicts:
3613 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3614 Libs.private: $(enabled shared && echo $libs)
3615 Cflags: -I\${includedir}
3616 EOF
3617 cat <<EOF > $name/$name-uninstalled.pc
3618 prefix=
3619 exec_prefix=
3620 libdir=\${pcfiledir}
3621 includedir=${source_path}
3622
3623 Name: $name
3624 Description: $comment
3625 Version: $version
3626 Requires: $requires
3627 Conflicts:
3628 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3629 Cflags: -I\${includedir}
3630 EOF
3631 }
3632
3633 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3634 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3635 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3636 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3637 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3638 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3639 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3640 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"