md5proto: Fix order of operations.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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/avconv]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-avplay         disable avplay build
86   --disable-avprobe        disable avprobe build
87   --disable-avserver       disable avserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --disable-w32threads     disable Win32 threads [auto]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --enable-vaapi           enable VAAPI code
111   --enable-vda             enable VDA code
112   --enable-vdpau           enable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-gnutls          enable gnutls [no]
167   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
168   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
169   --enable-libopencv       enable video filtering via libopencv [no]
170   --enable-libcdio         enable audio CD grabbing with libcdio
171   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
172                            and libraw1394 [no]
173   --enable-libdirac        enable Dirac support via libdirac [no]
174   --enable-libfaac         enable FAAC support via libfaac [no]
175   --enable-libfreetype     enable libfreetype [no]
176   --enable-libgsm          enable GSM support via libgsm [no]
177   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
178   --enable-libnut          enable NUT (de)muxing via libnut,
179                            native (de)muxer exists [no]
180   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
181   --enable-libpulse        enable Pulseaudio input via libpulse [no]
182   --enable-librtmp         enable RTMP[E] support via librtmp [no]
183   --enable-libschroedinger enable Dirac support via libschroedinger [no]
184   --enable-libspeex        enable Speex support via libspeex [no]
185   --enable-libtheora       enable Theora encoding via libtheora [no]
186   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
187   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
188   --enable-libvorbis       enable Vorbis encoding via libvorbis,
189                            native implementation exists [no]
190   --enable-libvpx          enable VP8 support via libvpx [no]
191   --enable-libx264         enable H.264 encoding via x264 [no]
192   --enable-libxavs         enable AVS encoding via xavs [no]
193   --enable-libxvid         enable Xvid encoding via xvidcore,
194                            native MPEG-4/Xvid encoder exists [no]
195   --enable-mlib            enable Sun medialib [no]
196   --enable-openssl         enable openssl [no]
197   --enable-zlib            enable zlib [autodetect]
198
199 Advanced options (experts only):
200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
201   --enable-cross-compile   assume a cross-compiler is used
202   --sysroot=PATH           root of cross-build tree
203   --sysinclude=PATH        location of cross-build system headers
204   --target-os=OS           compiler targets OS [$target_os]
205   --target-exec=CMD        command to run executables on target
206   --target-path=DIR        path to view of build directory on target
207   --nm=NM                  use nm tool
208   --ar=AR                  use archive tool AR [$ar_default]
209   --as=AS                  use assembler AS [$as_default]
210   --cc=CC                  use C compiler CC [$cc_default]
211   --ld=LD                  use linker LD
212   --host-cc=HOSTCC         use host C compiler HOSTCC
213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
215   --host-libs=HLIBS        use libs HLIBS when linking for host
216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --build-suffix=SUFFIX    library name suffix []
221   --arch=ARCH              select architecture [$arch]
222   --cpu=CPU                select the minimum required CPU (affects
223                            instruction selection, may crash on older CPUs)
224   --disable-asm            disable all assembler optimizations
225   --disable-altivec        disable AltiVec optimizations
226   --disable-amd3dnow       disable 3DNow! optimizations
227   --disable-amd3dnowext    disable 3DNow! extended optimizations
228   --disable-mmx            disable MMX optimizations
229   --disable-mmx2           disable MMX2 optimizations
230   --disable-sse            disable SSE optimizations
231   --disable-ssse3          disable SSSE3 optimizations
232   --disable-avx            disable AVX optimizations
233   --disable-armv5te        disable armv5te optimizations
234   --disable-armv6          disable armv6 optimizations
235   --disable-armv6t2        disable armv6t2 optimizations
236   --disable-armvfp         disable ARM VFP optimizations
237   --disable-iwmmxt         disable iwmmxt optimizations
238   --disable-mmi            disable MMI optimizations
239   --disable-neon           disable neon optimizations
240   --disable-vis            disable VIS optimizations
241   --disable-yasm           disable use of yasm assembler
242   --enable-pic             build position-independent code
243   --malloc-prefix=PFX      prefix malloc and related names with PFX
244   --enable-sram            allow use of on-chip SRAM
245   --disable-symver         disable symbol versioning
246   --optflags               override optimization-related compiler flags
247
248 Developer options (useful when working on Libav itself):
249   --disable-debug          disable debugging symbols
250   --enable-debug=LEVEL     set the debug level [$debuglevel]
251   --disable-optimizations  disable compiler optimizations
252   --enable-extra-warnings  enable more compiler warnings
253   --samples=PATH           location of test samples for FATE, if not set use
254                            \$FATE_SAMPLES at make invocation time.
255
256 NOTE: Object files are built at the place where configure is launched.
257 EOF
258   exit 0
259 }
260
261 quotes='""'
262
263 log(){
264     echo "$@" >> $logfile
265 }
266
267 log_file(){
268     log BEGIN $1
269     pr -n -t $1 >> $logfile
270     log END $1
271 }
272
273 echolog(){
274     log "$@"
275     echo "$@"
276 }
277
278 warn(){
279     log "WARNING: $*"
280     WARNINGS="${WARNINGS}WARNING: $*\n"
281 }
282
283 die(){
284     echolog "$@"
285     cat <<EOF
286
287 If you think configure made a mistake, make sure you are using the latest
288 version from Git.  If the latest version fails, report the problem to the
289 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
290 EOF
291     if disabled logging; then
292         cat <<EOF
293 Rerun configure with logging enabled (do not use --disable-logging), and
294 include the log this produces with your report.
295 EOF
296     else
297 cat <<EOF
298 Include the log file "$logfile" produced by configure as this will help
299 solving the problem.
300 EOF
301     fi
302     exit 1
303 }
304
305 # Avoid locale weirdness, besides we really just want to translate ASCII.
306 toupper(){
307     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
308 }
309
310 tolower(){
311     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
312 }
313
314 c_escape(){
315     echo "$*" | sed 's/["\\]/\\\0/g'
316 }
317
318 sh_quote(){
319     v=$(echo "$1" | sed "s/'/'\\\\''/g")
320     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
321     echo "$v"
322 }
323
324 cleanws(){
325     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
326 }
327
328 filter(){
329     pat=$1
330     shift
331     for v; do
332         eval "case $v in $pat) echo $v ;; esac"
333     done
334 }
335
336 filter_out(){
337     pat=$1
338     shift
339     for v; do
340         eval "case $v in $pat) ;; *) echo $v ;; esac"
341     done
342 }
343
344 map(){
345     m=$1
346     shift
347     for v; do eval $m; done
348 }
349
350 set_all(){
351     value=$1
352     shift
353     for var in $*; do
354         eval $var=$value
355     done
356 }
357
358 set_weak(){
359     value=$1
360     shift
361     for var; do
362         eval : \${$var:=$value}
363     done
364 }
365
366 set_safe(){
367     var=$1
368     shift
369     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
370 }
371
372 get_safe(){
373     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
374 }
375
376 pushvar(){
377     for var in $*; do
378         eval level=\${${var}_level:=0}
379         eval ${var}_${level}="\$$var"
380         eval ${var}_level=$(($level+1))
381     done
382 }
383
384 popvar(){
385     for var in $*; do
386         eval level=\${${var}_level:-0}
387         test $level = 0 && continue
388         eval level=$(($level-1))
389         eval $var="\${${var}_${level}}"
390         eval ${var}_level=$level
391         eval unset ${var}_${level}
392     done
393 }
394
395 enable(){
396     set_all yes $*
397 }
398
399 disable(){
400     set_all no $*
401 }
402
403 enable_weak(){
404     set_weak yes $*
405 }
406
407 disable_weak(){
408     set_weak no $*
409 }
410
411 enable_safe(){
412     for var; do
413         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
414     done
415 }
416
417 disable_safe(){
418     for var; do
419         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
420     done
421 }
422
423 do_enable_deep(){
424     for var; do
425         enabled $var && continue
426         eval sel="\$${var}_select"
427         eval sgs="\$${var}_suggest"
428         pushvar var sgs
429         enable_deep $sel
430         popvar sgs
431         enable_deep_weak $sgs
432         popvar var
433     done
434 }
435
436 enable_deep(){
437     do_enable_deep $*
438     enable $*
439 }
440
441 enable_deep_weak(){
442     do_enable_deep $*
443     enable_weak $*
444 }
445
446 enabled(){
447     test "${1#!}" = "$1" && op== || op=!=
448     eval test "x\$${1#!}" $op "xyes"
449 }
450
451 disabled(){
452     test "${1#!}" = "$1" && op== || op=!=
453     eval test "x\$${1#!}" $op "xno"
454 }
455
456 enabled_all(){
457     for opt; do
458         enabled $opt || return 1
459     done
460 }
461
462 disabled_all(){
463     for opt; do
464         disabled $opt || return 1
465     done
466 }
467
468 enabled_any(){
469     for opt; do
470         enabled $opt && return 0
471     done
472 }
473
474 disabled_any(){
475     for opt; do
476         disabled $opt && return 0
477     done
478     return 1
479 }
480
481 set_default(){
482     for opt; do
483         eval : \${$opt:=\$${opt}_default}
484     done
485 }
486
487 is_in(){
488     value=$1
489     shift
490     for var in $*; do
491         [ $var = $value ] && return 0
492     done
493     return 1
494 }
495
496 check_deps(){
497     for cfg; do
498         cfg="${cfg#!}"
499         enabled ${cfg}_checking && die "Circular dependency for $cfg."
500         disabled ${cfg}_checking && continue
501         enable ${cfg}_checking
502
503         eval dep_all="\$${cfg}_deps"
504         eval dep_any="\$${cfg}_deps_any"
505         eval dep_sel="\$${cfg}_select"
506         eval dep_sgs="\$${cfg}_suggest"
507         eval dep_ifa="\$${cfg}_if"
508         eval dep_ifn="\$${cfg}_if_any"
509
510         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
511         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
512         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
513
514         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
515         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
516         enabled_all  $dep_all || disable $cfg
517         enabled_any  $dep_any || disable $cfg
518         disabled_any $dep_sel && disable $cfg
519
520         if enabled $cfg; then
521             eval dep_extralibs="\$${cfg}_extralibs"
522             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
523             enable_deep $dep_sel
524             enable_deep_weak $dep_sgs
525         fi
526
527         disable ${cfg}_checking
528     done
529 }
530
531 print_config_h(){
532     enabled $1 && v=1 || v=0
533     echo "#define $2 $v"
534 }
535
536 print_config_mak(){
537     enabled $1 && v= || v=!
538     echo "$v$2=yes"
539 }
540
541 print_config_asm(){
542     enabled $1 && echo "%define $2"
543 }
544
545 print_config(){
546     pfx=$1
547     files=$2
548     shift 2
549     for cfg; do
550         ucname="$(toupper $cfg)"
551         for f in $files; do
552             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
553         done
554     done
555 }
556
557 print_enabled(){
558     test "$1" = -n && end=" " && shift || end="\n"
559     suf=$1
560     shift
561     for v; do
562         enabled $v && printf "%s$end" ${v%$suf};
563     done
564 }
565
566 append(){
567     var=$1
568     shift
569     eval "$var=\"\$$var $*\""
570 }
571
572 prepend(){
573     var=$1
574     shift
575     eval "$var=\"$* \$$var\""
576 }
577
578 add_cppflags(){
579     append CPPFLAGS $($filter_cppflags "$@")
580 }
581
582 add_cflags(){
583     append CFLAGS $($filter_cflags "$@")
584 }
585
586 add_asflags(){
587     append ASFLAGS $($filter_asflags "$@")
588 }
589
590 add_ldflags(){
591     append LDFLAGS "$@"
592 }
593
594 add_extralibs(){
595     prepend extralibs "$@"
596 }
597
598 check_cmd(){
599     log "$@"
600     "$@" >> $logfile 2>&1
601 }
602
603 check_cc(){
604     log check_cc "$@"
605     cat > $TMPC
606     log_file $TMPC
607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
608 }
609
610 check_cpp(){
611     log check_cpp "$@"
612     cat > $TMPC
613     log_file $TMPC
614     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
615 }
616
617 check_as(){
618     log check_as "$@"
619     cat > $TMPC
620     log_file $TMPC
621     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
622 }
623
624 check_asm(){
625     log check_asm "$@"
626     name="$1"
627     code="$2"
628     shift 2
629     disable $name
630     check_as "$@" <<EOF && enable $name
631 void foo(void){ __asm__ volatile($code); }
632 EOF
633 }
634
635 check_yasm(){
636     log check_yasm "$@"
637     echo "$1" > $TMPS
638     log_file $TMPS
639     shift 1
640     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
641 }
642
643 check_ld(){
644     log check_ld "$@"
645     flags=''
646     libs=''
647     for f; do
648         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
649     done
650     check_cc $($filter_cflags $flags) || return
651     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
652 }
653
654 check_cppflags(){
655     log check_cppflags "$@"
656     set -- $($filter_cppflags "$@")
657     check_cc "$@" <<EOF && append CPPFLAGS "$@"
658 int x;
659 EOF
660 }
661
662 check_cflags(){
663     log check_cflags "$@"
664     set -- $($filter_cflags "$@")
665     check_cc "$@" <<EOF && append CFLAGS "$@"
666 int x;
667 EOF
668 }
669
670 test_ldflags(){
671     log test_ldflags "$@"
672     check_ld "$@" <<EOF
673 int main(void){ return 0; }
674 EOF
675 }
676
677 check_ldflags(){
678     log check_ldflags "$@"
679     test_ldflags "$@" && add_ldflags "$@"
680 }
681
682 check_header(){
683     log check_header "$@"
684     header=$1
685     shift
686     disable_safe $header
687     check_cpp "$@" <<EOF && enable_safe $header
688 #include <$header>
689 int x;
690 EOF
691 }
692
693 check_func(){
694     log check_func "$@"
695     func=$1
696     shift
697     disable $func
698     check_ld "$@" <<EOF && enable $func
699 extern int $func();
700 int main(void){ $func(); }
701 EOF
702 }
703
704 check_mathfunc(){
705     log check_mathfunc "$@"
706     func=$1
707     shift
708     disable $func
709     check_ld "$@" <<EOF && enable $func
710 #include <math.h>
711 float foo(float f) { return $func(f); }
712 int main(void){ return 0; }
713 EOF
714 }
715
716 check_func_headers(){
717     log check_func_headers "$@"
718     headers=$1
719     funcs=$2
720     shift 2
721     {
722         for hdr in $headers; do
723             echo "#include <$hdr>"
724         done
725         for func in $funcs; do
726             echo "long check_$func(void) { return (long) $func; }"
727         done
728         echo "int main(void) { return 0; }"
729     } | check_ld "$@" && enable $funcs && enable_safe $headers
730 }
731
732 check_cpp_condition(){
733     log check_cpp_condition "$@"
734     header=$1
735     condition=$2
736     shift 2
737     check_cpp $($filter_cppflags "$@") <<EOF
738 #include <$header>
739 #if !($condition)
740 #error "unsatisfied condition: $condition"
741 #endif
742 EOF
743 }
744
745 check_lib(){
746     log check_lib "$@"
747     header="$1"
748     func="$2"
749     shift 2
750     check_header $header && check_func $func "$@" && add_extralibs "$@"
751 }
752
753 check_lib2(){
754     log check_lib2 "$@"
755     headers="$1"
756     funcs="$2"
757     shift 2
758     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
759 }
760
761 check_pkg_config(){
762     log check_pkg_config "$@"
763     pkg="$1"
764     headers="$2"
765     funcs="$3"
766     shift 3
767     $pkg_config --exists $pkg || return
768     pkg_cflags=$($pkg_config --cflags $pkg)
769     pkg_libs=$($pkg_config --libs $pkg)
770     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
771         set_safe ${pkg}_cflags $pkg_cflags   &&
772         set_safe ${pkg}_libs   $pkg_libs
773 }
774
775 check_exec(){
776     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
777 }
778
779 check_exec_crash(){
780     code=$(cat)
781
782     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
783     # are safe but may not be available everywhere.  Thus we use
784     # raise(SIGTERM) instead.  The check is run in a subshell so we
785     # can redirect the "Terminated" message from the shell.  SIGBUS
786     # is not defined by standard C so it is used conditionally.
787
788     (check_exec "$@") >> $logfile 2>&1 <<EOF
789 #include <signal.h>
790 static void sighandler(int sig){
791     raise(SIGTERM);
792 }
793 int main(void){
794     signal(SIGILL, sighandler);
795     signal(SIGFPE, sighandler);
796     signal(SIGSEGV, sighandler);
797 #ifdef SIGBUS
798     signal(SIGBUS, sighandler);
799 #endif
800     { $code }
801 }
802 EOF
803 }
804
805 check_type(){
806     log check_type "$@"
807     headers=$1
808     type=$2
809     shift 2
810     disable_safe "$type"
811     incs=""
812     for hdr in $headers; do
813         incs="$incs
814 #include <$hdr>"
815     done
816     check_cc "$@" <<EOF && enable_safe "$type"
817 $incs
818 $type v;
819 EOF
820 }
821
822 check_struct(){
823     log check_type "$@"
824     headers=$1
825     struct=$2
826     member=$3
827     shift 3
828     disable_safe "${struct}_${member}"
829     incs=""
830     for hdr in $headers; do
831         incs="$incs
832 #include <$hdr>"
833     done
834     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
835 $incs
836 const void *p = &(($struct *)0)->$member;
837 EOF
838 }
839
840 require(){
841     name="$1"
842     header="$2"
843     func="$3"
844     shift 3
845     check_lib $header $func "$@" || die "ERROR: $name not found"
846 }
847
848 require2(){
849     name="$1"
850     headers="$2"
851     func="$3"
852     shift 3
853     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
854 }
855
856 require_pkg_config(){
857     pkg="$1"
858     check_pkg_config "$@" || die "ERROR: $pkg not found"
859     add_cflags    $(get_safe ${pkg}_cflags)
860     add_extralibs $(get_safe ${pkg}_libs)
861 }
862
863 check_host_cc(){
864     log check_host_cc "$@"
865     cat > $TMPC
866     log_file $TMPC
867     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
868 }
869
870 check_host_cflags(){
871     log check_host_cflags "$@"
872     check_host_cc "$@" <<EOF && append host_cflags "$@"
873 int x;
874 EOF
875 }
876
877 apply(){
878     file=$1
879     shift
880     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
881 }
882
883 cp_if_changed(){
884     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
885     mkdir -p "$(dirname $2)"
886     cp -f "$1" "$2"
887 }
888
889 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
890 # system-dependent things.
891
892 COMPONENT_LIST="
893     bsfs
894     decoders
895     demuxers
896     encoders
897     filters
898     hwaccels
899     indevs
900     muxers
901     outdevs
902     parsers
903     protocols
904 "
905
906 CONFIG_LIST="
907     $COMPONENT_LIST
908     aandct
909     ac3dsp
910     avcodec
911     avdevice
912     avfilter
913     avformat
914     avisynth
915     bzlib
916     dct
917     doc
918     dwt
919     dxva2
920     fastdiv
921     ffmpeg
922     avconv
923     avplay
924     avprobe
925     avserver
926     fft
927     frei0r
928     gnutls
929     golomb
930     gpl
931     gray
932     h264dsp
933     h264pred
934     hardcoded_tables
935     huffman
936     libcdio
937     libdc1394
938     libdirac
939     libfaac
940     libfreetype
941     libgsm
942     libmp3lame
943     libnut
944     libopencore_amrnb
945     libopencore_amrwb
946     libopencv
947     libopenjpeg
948     libpulse
949     librtmp
950     libschroedinger
951     libspeex
952     libtheora
953     libvo_aacenc
954     libvo_amrwbenc
955     libvorbis
956     libvpx
957     libx264
958     libxavs
959     libxvid
960     lpc
961     lsp
962     mdct
963     memalign_hack
964     mlib
965     mpegaudiodsp
966     network
967     nonfree
968     openssl
969     pic
970     postproc
971     rdft
972     rtpdec
973     runtime_cpudetect
974     shared
975     sinewin
976     small
977     sram
978     static
979     swscale
980     swscale_alpha
981     thumb
982     vaapi
983     vda
984     vdpau
985     version3
986     x11grab
987     zlib
988 "
989
990 THREADS_LIST='
991     pthreads
992     w32threads
993 '
994
995 ARCH_LIST='
996     alpha
997     arm
998     avr32
999     avr32_ap
1000     avr32_uc
1001     bfin
1002     ia64
1003     m68k
1004     mips
1005     mips64
1006     parisc
1007     ppc
1008     ppc64
1009     s390
1010     sh4
1011     sparc
1012     sparc64
1013     tomi
1014     x86
1015     x86_32
1016     x86_64
1017 '
1018
1019 ARCH_EXT_LIST='
1020     altivec
1021     amd3dnow
1022     amd3dnowext
1023     armv5te
1024     armv6
1025     armv6t2
1026     armvfp
1027     avx
1028     iwmmxt
1029     mmi
1030     mmx
1031     mmx2
1032     neon
1033     ppc4xx
1034     sse
1035     ssse3
1036     vfpv3
1037     vis
1038 '
1039
1040 HAVE_LIST_PUB='
1041     bigendian
1042     fast_unaligned
1043 '
1044
1045 HAVE_LIST="
1046     $ARCH_EXT_LIST
1047     $HAVE_LIST_PUB
1048     $THREADS_LIST
1049     aligned_stack
1050     alsa_asoundlib_h
1051     altivec_h
1052     arpa_inet_h
1053     asm_mod_y
1054     attribute_may_alias
1055     attribute_packed
1056     bswap
1057     closesocket
1058     cmov
1059     dcbzl
1060     dev_bktr_ioctl_bt848_h
1061     dev_bktr_ioctl_meteor_h
1062     dev_ic_bt8xx_h
1063     dev_video_meteor_ioctl_meteor_h
1064     dev_video_bktr_ioctl_bt848_h
1065     dlfcn_h
1066     dlopen
1067     dos_paths
1068     ebp_available
1069     ebx_available
1070     exp2
1071     exp2f
1072     fast_64bit
1073     fast_clz
1074     fast_cmov
1075     fcntl
1076     fork
1077     getaddrinfo
1078     gethrtime
1079     GetProcessMemoryInfo
1080     GetProcessTimes
1081     getrusage
1082     gnu_as
1083     struct_rusage_ru_maxrss
1084     ibm_asm
1085     inet_aton
1086     inline_asm
1087     isatty
1088     ldbrx
1089     libdc1394_1
1090     libdc1394_2
1091     llrint
1092     llrintf
1093     local_aligned_16
1094     local_aligned_8
1095     localtime_r
1096     log2
1097     log2f
1098     loongson
1099     lrint
1100     lrintf
1101     lzo1x_999_compress
1102     machine_ioctl_bt848_h
1103     machine_ioctl_meteor_h
1104     malloc_h
1105     MapViewOfFile
1106     memalign
1107     mkstemp
1108     mmap
1109     posix_memalign
1110     round
1111     roundf
1112     sdl
1113     sdl_video_size
1114     setmode
1115     sndio_h
1116     socklen_t
1117     soundcard_h
1118     poll_h
1119     setrlimit
1120     strerror_r
1121     strptime
1122     strtok_r
1123     struct_addrinfo
1124     struct_ipv6_mreq
1125     struct_sockaddr_in6
1126     struct_sockaddr_sa_len
1127     struct_sockaddr_storage
1128     symver
1129     symver_gnu_asm
1130     symver_asm_label
1131     sys_mman_h
1132     sys_resource_h
1133     sys_select_h
1134     sys_soundcard_h
1135     sys_videoio_h
1136     threads
1137     trunc
1138     truncf
1139     vfp_args
1140     VirtualAlloc
1141     winsock2_h
1142     xform_asm
1143     xmm_clobbers
1144     yasm
1145 "
1146
1147 # options emitted with CONFIG_ prefix but not available on command line
1148 CONFIG_EXTRA="
1149     avutil
1150     gplv3
1151     lgplv3
1152 "
1153
1154 CMDLINE_SELECT="
1155     $ARCH_EXT_LIST
1156     $CONFIG_LIST
1157     $THREADS_LIST
1158     asm
1159     cross_compile
1160     debug
1161     extra_warnings
1162     logging
1163     optimizations
1164     symver
1165     yasm
1166 "
1167
1168 PATHS_LIST='
1169     bindir
1170     datadir
1171     incdir
1172     libdir
1173     mandir
1174     prefix
1175     shlibdir
1176 '
1177
1178 CMDLINE_SET="
1179     $PATHS_LIST
1180     ar
1181     arch
1182     as
1183     build_suffix
1184     cc
1185     cpu
1186     cross_prefix
1187     dep_cc
1188     extra_version
1189     host_cc
1190     host_cflags
1191     host_ldflags
1192     host_libs
1193     host_os
1194     ld
1195     logfile
1196     malloc_prefix
1197     nm
1198     optflags
1199     pkg_config
1200     samples
1201     sysinclude
1202     sysroot
1203     target_exec
1204     target_os
1205     target_path
1206 "
1207
1208 CMDLINE_APPEND="
1209     extra_cflags
1210 "
1211
1212 # code dependency declarations
1213
1214 # architecture extensions
1215
1216 armv5te_deps="arm"
1217 armv6_deps="arm"
1218 armv6t2_deps="arm"
1219 armvfp_deps="arm"
1220 iwmmxt_deps="arm"
1221 neon_deps="arm"
1222 vfpv3_deps="armvfp"
1223
1224 mmi_deps="mips"
1225
1226 altivec_deps="ppc"
1227 ppc4xx_deps="ppc"
1228
1229 vis_deps="sparc"
1230
1231 x86_64_suggest="cmov fast_cmov"
1232 amd3dnow_deps="mmx"
1233 amd3dnowext_deps="amd3dnow"
1234 mmx_deps="x86"
1235 mmx2_deps="mmx"
1236 sse_deps="mmx"
1237 ssse3_deps="sse"
1238 avx_deps="ssse3"
1239
1240 aligned_stack_if_any="ppc x86"
1241 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1242 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1243 fast_unaligned_if_any="armv6 ppc x86"
1244
1245 need_memalign="altivec neon sse"
1246 inline_asm_deps="!tms470"
1247
1248 symver_if_any="symver_asm_label symver_gnu_asm"
1249
1250 # subsystems
1251 dct_select="rdft"
1252 mdct_select="fft"
1253 rdft_select="fft"
1254 mpegaudiodsp_select="dct"
1255
1256 # decoders / encoders / hardware accelerators
1257 aac_decoder_select="mdct sinewin"
1258 aac_encoder_select="mdct sinewin"
1259 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1260 ac3_decoder_select="mdct ac3dsp ac3_parser"
1261 ac3_encoder_select="mdct ac3dsp"
1262 ac3_fixed_encoder_select="mdct ac3dsp"
1263 alac_encoder_select="lpc"
1264 amrnb_decoder_select="lsp"
1265 amrwb_decoder_select="lsp"
1266 atrac1_decoder_select="mdct sinewin"
1267 atrac3_decoder_select="mdct"
1268 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1269 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1270 cavs_decoder_select="golomb"
1271 cook_decoder_select="mdct sinewin"
1272 cscd_decoder_suggest="zlib"
1273 dca_decoder_select="mdct"
1274 dnxhd_encoder_select="aandct"
1275 dxa_decoder_select="zlib"
1276 eac3_decoder_select="ac3_decoder"
1277 eac3_encoder_select="mdct ac3dsp"
1278 eamad_decoder_select="aandct"
1279 eatgq_decoder_select="aandct"
1280 eatqi_decoder_select="aandct"
1281 ffv1_decoder_select="golomb"
1282 flac_decoder_select="golomb"
1283 flac_encoder_select="golomb lpc"
1284 flashsv_decoder_select="zlib"
1285 flashsv_encoder_select="zlib"
1286 flashsv2_decoder_select="zlib"
1287 flv_decoder_select="h263_decoder"
1288 flv_encoder_select="h263_encoder"
1289 fraps_decoder_select="huffman"
1290 h261_encoder_select="aandct"
1291 h263_decoder_select="h263_parser"
1292 h263_encoder_select="aandct"
1293 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1294 h263i_decoder_select="h263_decoder"
1295 h263p_encoder_select="h263_encoder"
1296 h264_decoder_select="golomb h264dsp h264pred"
1297 h264_dxva2_hwaccel_deps="dxva2api_h"
1298 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1299 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1300 h264_vda_hwaccel_select="vda h264_decoder"
1301 h264_vdpau_decoder_select="vdpau h264_decoder"
1302 imc_decoder_select="fft mdct sinewin"
1303 jpegls_decoder_select="golomb"
1304 jpegls_encoder_select="golomb"
1305 ljpeg_encoder_select="aandct"
1306 loco_decoder_select="golomb"
1307 mjpeg_encoder_select="aandct"
1308 mlp_decoder_select="mlp_parser"
1309 mp1_decoder_select="mpegaudiodsp"
1310 mp2_decoder_select="mpegaudiodsp"
1311 mp3adu_decoder_select="mpegaudiodsp"
1312 mp3_decoder_select="mpegaudiodsp"
1313 mp3on4_decoder_select="mpegaudiodsp"
1314 mp1float_decoder_select="mpegaudiodsp"
1315 mp2float_decoder_select="mpegaudiodsp"
1316 mp3adufloat_decoder_select="mpegaudiodsp"
1317 mp3float_decoder_select="mpegaudiodsp"
1318 mp3on4float_decoder_select="mpegaudiodsp"
1319 mpeg1video_encoder_select="aandct"
1320 mpeg2video_encoder_select="aandct"
1321 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1322 mpeg4_encoder_select="h263_encoder"
1323 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1324 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1325 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1326 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1327 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1328 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1329 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1330 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1331 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1332 msmpeg4v1_decoder_select="h263_decoder"
1333 msmpeg4v1_encoder_select="h263_encoder"
1334 msmpeg4v2_decoder_select="h263_decoder"
1335 msmpeg4v2_encoder_select="h263_encoder"
1336 msmpeg4v3_decoder_select="h263_decoder"
1337 msmpeg4v3_encoder_select="h263_encoder"
1338 nellymoser_decoder_select="mdct sinewin"
1339 nellymoser_encoder_select="mdct sinewin"
1340 png_decoder_select="zlib"
1341 png_encoder_select="zlib"
1342 qcelp_decoder_select="lsp"
1343 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1344 ra_144_encoder_select="lpc"
1345 rv10_decoder_select="h263_decoder"
1346 rv10_encoder_select="h263_encoder"
1347 rv20_decoder_select="h263_decoder"
1348 rv20_encoder_select="h263_encoder"
1349 rv30_decoder_select="golomb h264pred"
1350 rv40_decoder_select="golomb h264pred"
1351 shorten_decoder_select="golomb"
1352 sipr_decoder_select="lsp"
1353 snow_decoder_select="dwt"
1354 snow_encoder_select="aandct dwt"
1355 svq1_encoder_select="aandct"
1356 svq3_decoder_select="golomb h264dsp h264pred"
1357 svq3_decoder_suggest="zlib"
1358 theora_decoder_select="vp3_decoder"
1359 tiff_decoder_suggest="zlib"
1360 tiff_encoder_suggest="zlib"
1361 truehd_decoder_select="mlp_decoder"
1362 tscc_decoder_select="zlib"
1363 twinvq_decoder_select="mdct lsp sinewin"
1364 vc1_decoder_select="h263_decoder"
1365 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1366 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1367 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1368 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1369 vc1image_decoder_select="vc1_decoder"
1370 vorbis_decoder_select="mdct"
1371 vorbis_encoder_select="mdct"
1372 vp6_decoder_select="huffman"
1373 vp6a_decoder_select="vp6_decoder"
1374 vp6f_decoder_select="vp6_decoder"
1375 vp8_decoder_select="h264pred"
1376 wmapro_decoder_select="mdct sinewin"
1377 wmav1_decoder_select="mdct sinewin"
1378 wmav1_encoder_select="mdct sinewin"
1379 wmav2_decoder_select="mdct sinewin"
1380 wmav2_encoder_select="mdct sinewin"
1381 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1382 wmv1_decoder_select="h263_decoder"
1383 wmv1_encoder_select="h263_encoder"
1384 wmv2_decoder_select="h263_decoder"
1385 wmv2_encoder_select="h263_encoder"
1386 wmv3_decoder_select="vc1_decoder"
1387 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1388 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1389 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1390 wmv3image_decoder_select="wmv3_decoder"
1391 zlib_decoder_select="zlib"
1392 zlib_encoder_select="zlib"
1393 zmbv_decoder_select="zlib"
1394 zmbv_encoder_select="zlib"
1395
1396 vaapi_deps="va_va_h"
1397 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1398 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1399
1400 # parsers
1401 h264_parser_select="golomb h264dsp h264pred"
1402
1403 # external libraries
1404 libdirac_decoder_deps="libdirac !libschroedinger"
1405 libdirac_encoder_deps="libdirac"
1406 libfaac_encoder_deps="libfaac"
1407 libgsm_decoder_deps="libgsm"
1408 libgsm_encoder_deps="libgsm"
1409 libgsm_ms_decoder_deps="libgsm"
1410 libgsm_ms_encoder_deps="libgsm"
1411 libmp3lame_encoder_deps="libmp3lame"
1412 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1413 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1414 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1415 libopenjpeg_decoder_deps="libopenjpeg"
1416 libschroedinger_decoder_deps="libschroedinger"
1417 libschroedinger_encoder_deps="libschroedinger"
1418 libspeex_decoder_deps="libspeex"
1419 libspeex_encoder_deps="libspeex"
1420 libtheora_encoder_deps="libtheora"
1421 libvo_aacenc_encoder_deps="libvo_aacenc"
1422 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1423 libvorbis_encoder_deps="libvorbis"
1424 libvpx_decoder_deps="libvpx"
1425 libvpx_encoder_deps="libvpx"
1426 libx264_encoder_deps="libx264"
1427 libxavs_encoder_deps="libxavs"
1428 libxvid_encoder_deps="libxvid"
1429
1430 # demuxers / muxers
1431 ac3_demuxer_select="ac3_parser"
1432 asf_stream_muxer_select="asf_muxer"
1433 avisynth_demuxer_deps="avisynth"
1434 dirac_demuxer_select="dirac_parser"
1435 eac3_demuxer_select="ac3_parser"
1436 flac_demuxer_select="flac_parser"
1437 ipod_muxer_select="mov_muxer"
1438 libnut_demuxer_deps="libnut"
1439 libnut_muxer_deps="libnut"
1440 matroska_audio_muxer_select="matroska_muxer"
1441 matroska_demuxer_suggest="zlib bzlib"
1442 mov_demuxer_suggest="zlib"
1443 mp3_demuxer_select="mpegaudio_parser"
1444 mp4_muxer_select="mov_muxer"
1445 mpegtsraw_demuxer_select="mpegts_demuxer"
1446 mxf_d10_muxer_select="mxf_muxer"
1447 ogg_demuxer_select="golomb"
1448 psp_muxer_select="mov_muxer"
1449 rtp_demuxer_select="sdp_demuxer"
1450 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1451 rtsp_demuxer_select="http_protocol rtpdec"
1452 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1453 sap_demuxer_select="sdp_demuxer"
1454 sap_muxer_select="rtp_muxer rtp_protocol"
1455 sdp_demuxer_select="rtpdec"
1456 spdif_muxer_select="aac_parser"
1457 tg2_muxer_select="mov_muxer"
1458 tgp_muxer_select="mov_muxer"
1459 w64_demuxer_deps="wav_demuxer"
1460
1461 # indevs / outdevs
1462 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1463 alsa_outdev_deps="alsa_asoundlib_h"
1464 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1465 dv1394_indev_deps="dv1394 dv_demuxer"
1466 fbdev_indev_deps="linux_fb_h"
1467 jack_indev_deps="jack_jack_h"
1468 libcdio_indev_deps="libcdio"
1469 libdc1394_indev_deps="libdc1394"
1470 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1471 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1472 pulse_indev_deps="libpulse"
1473 sndio_indev_deps="sndio_h"
1474 sndio_outdev_deps="sndio_h"
1475 v4l_indev_deps="linux_videodev_h"
1476 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1477 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1478 vfwcap_indev_extralibs="-lavicap32"
1479 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1480 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1481
1482 # protocols
1483 gopher_protocol_deps="network"
1484 httpproxy_protocol_deps="network"
1485 httpproxy_protocol_select="tcp_protocol"
1486 http_protocol_deps="network"
1487 http_protocol_select="tcp_protocol"
1488 https_protocol_select="tls_protocol"
1489 mmsh_protocol_select="http_protocol"
1490 mmst_protocol_deps="network"
1491 rtmp_protocol_select="tcp_protocol"
1492 rtp_protocol_select="udp_protocol"
1493 tcp_protocol_deps="network"
1494 tls_protocol_deps_any="openssl gnutls"
1495 tls_protocol_select="tcp_protocol"
1496 udp_protocol_deps="network"
1497
1498 # filters
1499 blackframe_filter_deps="gpl"
1500 boxblur_filter_deps="gpl"
1501 cropdetect_filter_deps="gpl"
1502 delogo_filter_deps="gpl"
1503 drawtext_filter_deps="libfreetype"
1504 frei0r_filter_deps="frei0r dlopen strtok_r"
1505 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1506 hqdn3d_filter_deps="gpl"
1507 ocv_filter_deps="libopencv"
1508 scale_filter_deps="swscale"
1509 yadif_filter_deps="gpl"
1510
1511 # libraries
1512 avdevice_deps="avcodec avformat"
1513 avformat_deps="avcodec"
1514 postproc_deps="gpl"
1515
1516 # programs
1517 ffmpeg_deps="avcodec avformat swscale"
1518 ffmpeg_select="buffer_filter"
1519 avconv_deps="avcodec avformat swscale"
1520 avconv_select="buffer_filter"
1521 avplay_deps="avcodec avformat swscale sdl"
1522 avplay_select="rdft"
1523 avprobe_deps="avcodec avformat"
1524 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1525 avserver_extralibs='$ldl'
1526
1527 doc_deps="texi2html"
1528
1529 # tests
1530
1531 test_deps(){
1532     suf1=$1
1533     suf2=$2
1534     shift 2
1535     for v; do
1536         dep=${v%=*}
1537         tests=${v#*=}
1538         for name in ${tests}; do
1539             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1540         done
1541     done
1542 }
1543
1544 mxf_d10_test_deps="avfilter"
1545 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1546
1547 test_deps _encoder _decoder                                             \
1548     adpcm_g726=g726                                                     \
1549     adpcm_ima_qt                                                        \
1550     adpcm_ima_wav                                                       \
1551     adpcm_ms                                                            \
1552     adpcm_swf                                                           \
1553     adpcm_yamaha=adpcm_yam                                              \
1554     alac                                                                \
1555     asv1                                                                \
1556     asv2                                                                \
1557     bmp                                                                 \
1558     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1559     dvvideo="dv dv_411 dv50"                                            \
1560     ffv1                                                                \
1561     flac                                                                \
1562     flashsv                                                             \
1563     flv                                                                 \
1564     gif                                                                 \
1565     h261                                                                \
1566     h263="h263 h263p"                                                   \
1567     huffyuv                                                             \
1568     jpegls                                                              \
1569     mjpeg="jpg mjpeg ljpeg"                                             \
1570     mp2                                                                 \
1571     mpeg1video="mpeg mpeg1b"                                            \
1572     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1573     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1574     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1575     mpeg4="mpeg4thread error rc"                                        \
1576     msmpeg4v3=msmpeg4                                                   \
1577     msmpeg4v2                                                           \
1578     pbm=pbmpipe                                                         \
1579     pcx                                                                 \
1580     pgm="pgm pgmpipe"                                                   \
1581     png                                                                 \
1582     ppm="ppm ppmpipe"                                                   \
1583     rawvideo="rgb yuv"                                                  \
1584     roq                                                                 \
1585     rv10                                                                \
1586     rv20                                                                \
1587     sgi                                                                 \
1588     snow="snow snowll"                                                  \
1589     svq1                                                                \
1590     targa=tga                                                           \
1591     tiff                                                                \
1592     wmav1                                                               \
1593     wmav2                                                               \
1594     wmv1                                                                \
1595     wmv2                                                                \
1596
1597 test_deps _muxer _demuxer                                               \
1598     aiff                                                                \
1599     pcm_alaw=alaw                                                       \
1600     asf                                                                 \
1601     au                                                                  \
1602     avi                                                                 \
1603     dv=dv_fmt                                                           \
1604     ffm                                                                 \
1605     flv=flv_fmt                                                         \
1606     gxf                                                                 \
1607     matroska=mkv                                                        \
1608     mmf                                                                 \
1609     mov                                                                 \
1610     pcm_mulaw=mulaw                                                     \
1611     mxf="mxf mxf_d10"                                                   \
1612     nut                                                                 \
1613     ogg                                                                 \
1614     rawvideo=pixfmt                                                     \
1615     rm                                                                  \
1616     swf                                                                 \
1617     mpegts=ts                                                           \
1618     voc                                                                 \
1619     wav                                                                 \
1620     yuv4mpegpipe=yuv4mpeg                                               \
1621
1622 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1623 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1624
1625 # default parameters
1626
1627 logfile="config.log"
1628
1629 # installation paths
1630 prefix_default="/usr/local"
1631 bindir_default='${prefix}/bin'
1632 datadir_default='${prefix}/share/avconv'
1633 incdir_default='${prefix}/include'
1634 libdir_default='${prefix}/lib'
1635 mandir_default='${prefix}/share/man'
1636 shlibdir_default="$libdir_default"
1637
1638 # toolchain
1639 ar_default="ar"
1640 cc_default="gcc"
1641 cc_version=\"unknown\"
1642 host_cc_default="gcc"
1643 ln_s="ln -sf"
1644 nm_default="nm"
1645 objformat="elf"
1646 pkg_config_default=pkg-config
1647 ranlib="ranlib"
1648 yasmexe="yasm"
1649 nogas=":"
1650
1651 nm_opts='-g'
1652
1653 # machine
1654 arch_default=$(uname -m)
1655 cpu="generic"
1656
1657 # OS
1658 target_os_default=$(tolower $(uname -s))
1659 host_os=$target_os_default
1660
1661 # configurable options
1662 enable avcodec
1663 enable avdevice
1664 enable avfilter
1665 enable avformat
1666 enable avutil
1667 enable asm
1668 enable debug
1669 enable doc
1670 enable fastdiv
1671 enable ffmpeg
1672 enable avconv
1673 enable avplay
1674 enable avprobe
1675 enable avserver
1676 enable network
1677 enable optimizations
1678 enable postproc
1679 enable protocols
1680 enable static
1681 enable swscale
1682 enable swscale_alpha
1683
1684 # build settings
1685 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1686 AVSERVERLDFLAGS=-Wl,-E
1687 LIBPREF="lib"
1688 LIBSUF=".a"
1689 FULLNAME='$(NAME)$(BUILDSUF)'
1690 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1691 SLIBPREF="lib"
1692 SLIBSUF=".so"
1693 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1694 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1695 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1696 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1697 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1698 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1699
1700 AS_O='-o $@'
1701 CC_O='-o $@'
1702
1703 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1704 host_libs='-lm'
1705
1706 target_path='$(CURDIR)'
1707
1708 # since the object filename is not given with the -MM flag, the compiler
1709 # is only able to print the basename, and we must add the path ourselves
1710 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1711 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1712
1713 # find source path
1714 if test -f configure; then
1715     source_path=.
1716 else
1717     source_path=$(cd $(dirname "$0"); pwd)
1718     echo "$source_path" | grep -q '[[:blank:]]' &&
1719         die "Out of tree builds are impossible with whitespace in source path."
1720     test -e "$source_path/config.h" &&
1721         die "Out of tree builds are impossible with config.h in source dir."
1722 fi
1723
1724 for v in "$@"; do
1725     r=${v#*=}
1726     l=${v%"$r"}
1727     r=$(sh_quote "$r")
1728     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1729 done
1730
1731 find_things(){
1732     thing=$1
1733     pattern=$2
1734     file=$source_path/$3
1735     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1736 }
1737
1738 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1739 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1740 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1741 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1742 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1743 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1744 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1745 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1746 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1747 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1748 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1749
1750 find_tests(){
1751     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1752 }
1753
1754 ACODEC_TESTS=$(find_tests acodec)
1755 VCODEC_TESTS=$(find_tests vsynth1)
1756 LAVF_TESTS=$(find_tests lavf)
1757 LAVFI_TESTS=$(find_tests lavfi)
1758 SEEK_TESTS=$(find_tests seek seek_)
1759
1760 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1761
1762 for n in $COMPONENT_LIST; do
1763     v=$(toupper ${n%s})_LIST
1764     eval enable \$$v
1765     eval ${n}_if_any="\$$v"
1766 done
1767
1768 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1769
1770 die_unknown(){
1771     echo "Unknown option \"$1\"."
1772     echo "See $0 --help for available options."
1773     exit 1
1774 }
1775
1776 show_list() {
1777     suffix=_$1
1778     shift
1779     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1780     exit 0
1781 }
1782
1783 for opt do
1784     optval="${opt#*=}"
1785     case "$opt" in
1786     --extra-ldflags=*) add_ldflags $optval
1787     ;;
1788     --extra-libs=*) add_extralibs $optval
1789     ;;
1790     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1791     ;;
1792     --enable-debug=*) debuglevel="$optval"
1793     ;;
1794     --disable-everything)
1795     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1796     ;;
1797     --enable-*=*|--disable-*=*)
1798     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1799     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1800     eval list=\$$(toupper $thing)_LIST
1801     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1802     $action $(filter "$name" $list)
1803     ;;
1804     --enable-?*|--disable-?*)
1805     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1806     if is_in $option $COMPONENT_LIST; then
1807         test $action = disable && action=unset
1808         eval $action \$$(toupper ${option%s})_LIST
1809     elif is_in $option $CMDLINE_SELECT; then
1810         $action $option
1811     else
1812         die_unknown $opt
1813     fi
1814     ;;
1815     --list-*)
1816         NAME="${opt#--list-}"
1817         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1818         NAME=${NAME%s}
1819         eval show_list $NAME \$$(toupper $NAME)_LIST
1820     ;;
1821     --help|-h) show_help
1822     ;;
1823     *)
1824     optname="${opt%%=*}"
1825     optname="${optname#--}"
1826     optname=$(echo "$optname" | sed 's/-/_/g')
1827     if is_in $optname $CMDLINE_SET; then
1828         eval $optname='$optval'
1829     elif is_in $optname $CMDLINE_APPEND; then
1830         append $optname "$optval"
1831     else
1832          die_unknown $opt
1833     fi
1834     ;;
1835     esac
1836 done
1837
1838 disabled logging && logfile=/dev/null
1839
1840 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1841 set >> $logfile
1842
1843 test -n "$cross_prefix" && enable cross_compile
1844
1845 if enabled cross_compile; then
1846     test -n "$arch" && test -n "$target_os" ||
1847         die "Must specify target arch and OS when cross-compiling"
1848 fi
1849
1850 set_default arch target_os
1851
1852 ar_default="${cross_prefix}${ar_default}"
1853 cc_default="${cross_prefix}${cc_default}"
1854 nm_default="${cross_prefix}${nm_default}"
1855 pkg_config_default="${cross_prefix}${pkg_config_default}"
1856 ranlib="${cross_prefix}${ranlib}"
1857
1858 sysinclude_default="${sysroot}/usr/include"
1859
1860 set_default cc nm pkg_config sysinclude
1861 enabled cross_compile || host_cc_default=$cc
1862 set_default host_cc
1863
1864 if ! $pkg_config --version >/dev/null 2>&1; then
1865     warn "$pkg_config not found, library detection may fail."
1866     pkg_config=false
1867 fi
1868
1869 exesuf() {
1870     case $1 in
1871         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1872     esac
1873 }
1874
1875 EXESUF=$(exesuf $target_os)
1876 HOSTEXESUF=$(exesuf $host_os)
1877
1878 # set temporary file name
1879 : ${TMPDIR:=$TEMPDIR}
1880 : ${TMPDIR:=$TMP}
1881 : ${TMPDIR:=/tmp}
1882
1883 if ! check_cmd mktemp -u XXXXXX; then
1884     # simple replacement for missing mktemp
1885     # NOT SAFE FOR GENERAL USE
1886     mktemp(){
1887         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1888     }
1889 fi
1890
1891 tmpfile(){
1892     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1893         (set -C; exec > $tmp) 2>/dev/null ||
1894         die "Unable to create temporary file in $TMPDIR."
1895     append TMPFILES $tmp
1896     eval $1=$tmp
1897 }
1898
1899 trap 'rm -f -- $TMPFILES' EXIT
1900
1901 tmpfile TMPC  .c
1902 tmpfile TMPE  $EXESUF
1903 tmpfile TMPH  .h
1904 tmpfile TMPO  .o
1905 tmpfile TMPS  .S
1906 tmpfile TMPV  .ver
1907 tmpfile TMPSH .sh
1908 tmpfile TMPASM .asm
1909
1910 unset -f mktemp
1911
1912 chmod +x $TMPE
1913
1914 # make sure we can execute files in $TMPDIR
1915 cat > $TMPSH 2>> $logfile <<EOF
1916 #! /bin/sh
1917 EOF
1918 chmod +x $TMPSH >> $logfile 2>&1
1919 if ! $TMPSH >> $logfile 2>&1; then
1920     cat <<EOF
1921 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1922 variable to another directory and make sure that it is not mounted noexec.
1923 EOF
1924     die "Sanity test failed."
1925 fi
1926
1927 filter_cflags=echo
1928 filter_cppflags=echo
1929 filter_asflags=echo
1930
1931 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1932     cc_type=llvm_gcc
1933     cc_version=__VERSION__
1934     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1935     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1936     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1937     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1938     speed_cflags='-O3'
1939     size_cflags='-Os'
1940 elif $cc -v 2>&1 | grep -qi ^gcc; then
1941     cc_type=gcc
1942     cc_version=__VERSION__
1943     gcc_version=$($cc --version | head -n1)
1944     gcc_basever=$($cc -dumpversion)
1945     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1946     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1947     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1948     if ! $cc -dumpversion | grep -q '^2\.'; then
1949         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     fi
1952     speed_cflags='-O3'
1953     size_cflags='-Os'
1954 elif $cc --version 2>/dev/null | grep -q Intel; then
1955     cc_type=icc
1956     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1957     cc_ident=$($cc --version | head -n1)
1958     icc_version=$($cc -dumpversion)
1959     CC_DEPFLAGS='-MMD'
1960     AS_DEPFLAGS='-MMD'
1961     speed_cflags='-O3'
1962     size_cflags='-Os'
1963     noopt_cflags='-O1'
1964 elif $cc -v 2>&1 | grep -q xlc; then
1965     cc_type=xlc
1966     cc_version="AV_STRINGIFY(__IBMC__)"
1967     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1968     speed_cflags='-O5'
1969     size_cflags='-O5 -qcompact'
1970 elif $cc -V 2>/dev/null | grep -q Compaq; then
1971     cc_type=ccc
1972     cc_version="AV_STRINGIFY(__DECC_VER)"
1973     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1974     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1975     debuglevel=3
1976     add_ldflags -Wl,-z,now # calls to libots crash without this
1977     speed_cflags='-fast'
1978     size_cflags='-O1'
1979 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1980     test -d "$sysroot" || die "No valid sysroot specified."
1981     cc_type=armcc
1982     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1983     cc_ident=$($cc --vsn | head -n1)
1984     armcc_conf="$PWD/armcc.conf"
1985     $cc --arm_linux_configure                 \
1986         --arm_linux_config_file="$armcc_conf" \
1987         --configure_sysroot="$sysroot"        \
1988         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1989         die "Error creating armcc configuration file."
1990     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1991     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1992     as_default="${cross_prefix}gcc"
1993     CC_DEPFLAGS='-MMD'
1994     AS_DEPFLAGS='-MMD'
1995     speed_cflags='-O3'
1996     size_cflags='-Os'
1997     filter_asflags="filter_out -W${armcc_opt}*"
1998 elif $cc -version 2>/dev/null | grep -q TMS470; then
1999     cc_type=tms470
2000     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2001     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2002     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2003     CC_O='-fr=$(@D)'
2004     as_default="${cross_prefix}gcc"
2005     ld_default="${cross_prefix}gcc"
2006     TMPO=$(basename $TMPC .c).o
2007     append TMPFILES $TMPO
2008     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2009     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2010     AS_DEPFLAGS='-MMD'
2011     speed_cflags='-O3 -mf=5'
2012     size_cflags='-O3 -mf=2'
2013     filter_cflags=tms470_flags
2014     tms470_flags(){
2015         for flag; do
2016             case $flag in
2017                 -march=*|-mcpu=*)
2018                     case "${flag#*=}" in
2019                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2020                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2021                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2022                         armv6*|arm11*)          echo -mv=6   ;;
2023                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2024                                                 echo -mv=5e  ;;
2025                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2026                     esac
2027                     ;;
2028                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2029                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2030                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2031                 -msoft-float)   echo --float_support=vfplib       ;;
2032                 -O[0-3]|-mf=*)  echo $flag                        ;;
2033                 -g)             echo -g -mn                       ;;
2034                 -pds=*)         echo $flag                        ;;
2035             esac
2036         done
2037     }
2038 elif $cc -v 2>&1 | grep -q clang; then
2039     cc_type=clang
2040     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2041         cc_version=__clang_version__ || cc_version=__VERSION__
2042     cc_ident=$($cc --version | head -n1)
2043     CC_DEPFLAGS='-MMD'
2044     AS_DEPFLAGS='-MMD'
2045     speed_cflags='-O3'
2046     size_cflags='-Os'
2047 elif $cc -V 2>&1 | grep -q Sun; then
2048     cc_type=suncc
2049     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2050     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2051     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2052     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2053     add_ldflags -xc99
2054     speed_cflags='-O5'
2055     size_cflags='-O5 -xspace'
2056     filter_cflags=suncc_flags
2057     suncc_flags(){
2058         for flag; do
2059             case $flag in
2060                 -march=*|-mcpu=*)
2061                     case "${flag#*=}" in
2062                         native)                   echo -xtarget=native       ;;
2063                         v9|niagara)               echo -xarch=sparc          ;;
2064                         ultrasparc)               echo -xarch=sparcvis       ;;
2065                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2066                         i586|pentium)             echo -xchip=pentium        ;;
2067                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2068                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2069                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2070                         pentium4*)          echo -xtarget=pentium4           ;;
2071                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2072                         *-sse3)             echo -xarch=sse3                 ;;
2073                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2074                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2075                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2076                         k8|opteron|athlon64|athlon-fx)
2077                                                   echo -xarch=sse2a          ;;
2078                         athlon*)                  echo -xarch=pentium_proa   ;;
2079                     esac
2080                     ;;
2081                 -std=c99)             echo -xc99              ;;
2082                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2083                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2084                 -W*,*)                echo $flag              ;;
2085                 -f*-*|-W*)                                    ;;
2086                 *)                    echo $flag              ;;
2087             esac
2088         done
2089     }
2090 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2091     cc_type=pathscale
2092     cc_version=__PATHSCALE__
2093     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2094     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2095     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2096     speed_cflags='-O2'
2097     size_cflags='-Os'
2098     filter_cflags='filter_out -Wdisabled-optimization'
2099 elif $cc -v 2>&1 | grep -q Open64; then
2100     cc_type=open64
2101     cc_version=__OPEN64__
2102     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2103     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     speed_cflags='-O2'
2106     size_cflags='-Os'
2107     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2108 fi
2109
2110 test -n "$cc_type" && enable $cc_type ||
2111     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2112
2113 : ${as_default:=$cc}
2114 : ${dep_cc_default:=$cc}
2115 : ${ld_default:=$cc}
2116 set_default ar as dep_cc ld
2117
2118 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2119 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2120
2121 add_cflags $extra_cflags
2122 add_asflags $extra_cflags
2123
2124 if test -n "$sysroot"; then
2125     case "$cc_type" in
2126         gcc|llvm_gcc|clang)
2127             add_cppflags --sysroot="$sysroot"
2128             add_ldflags --sysroot="$sysroot"
2129         ;;
2130         tms470)
2131             add_cppflags -I"$sysinclude"
2132             add_ldflags  --sysroot="$sysroot"
2133         ;;
2134     esac
2135 fi
2136
2137 if test "$cpu" = host; then
2138     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2139
2140     case "$cc_type" in
2141         gcc|llvm_gcc)
2142             check_native(){
2143                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2144                 sed -n "/cc1.*$1=/{
2145                             s/.*$1=\\([^ ]*\\).*/\\1/
2146                             p
2147                             q
2148                         }" $TMPE
2149             }
2150             cpu=$(check_native -march || check_native -mcpu)
2151         ;;
2152     esac
2153
2154     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2155 fi
2156
2157 # Deal with common $arch aliases
2158 case "$arch" in
2159     arm*)
2160         arch="arm"
2161     ;;
2162     mips|mipsel|IP*)
2163         arch="mips"
2164     ;;
2165     mips64*)
2166         arch="mips"
2167         subarch="mips64"
2168     ;;
2169     parisc|hppa)
2170         arch="parisc"
2171     ;;
2172     parisc64|hppa64)
2173         arch="parisc"
2174         subarch="parisc64"
2175     ;;
2176     "Power Macintosh"|ppc|powerpc)
2177         arch="ppc"
2178     ;;
2179     ppc64|powerpc64)
2180         arch="ppc"
2181         subarch="ppc64"
2182     ;;
2183     s390|s390x)
2184         arch="s390"
2185     ;;
2186     sh4|sh)
2187         arch="sh4"
2188     ;;
2189     sun4u|sparc64)
2190         arch="sparc"
2191         subarch="sparc64"
2192     ;;
2193     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2194         arch="x86"
2195     ;;
2196 esac
2197
2198 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2199 enable $arch
2200
2201 # Add processor-specific flags
2202 if test "$cpu" = generic; then
2203     : do nothing
2204 elif enabled ppc; then
2205
2206     case $(tolower $cpu) in
2207         601|ppc601|powerpc601)
2208             cpuflags="-mcpu=601"
2209             disable altivec
2210         ;;
2211         603*|ppc603*|powerpc603*)
2212             cpuflags="-mcpu=603"
2213             disable altivec
2214         ;;
2215         604*|ppc604*|powerpc604*)
2216             cpuflags="-mcpu=604"
2217             disable altivec
2218         ;;
2219         g3|75*|ppc75*|powerpc75*)
2220             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2221             disable altivec
2222         ;;
2223         g4|745*|ppc745*|powerpc745*)
2224             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2225         ;;
2226         74*|ppc74*|powerpc74*)
2227             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2228         ;;
2229         g5|970|ppc970|powerpc970|power4*)
2230             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2231         ;;
2232         cell)
2233             cpuflags="-mcpu=cell"
2234             enable ldbrx
2235         ;;
2236         e500v2)
2237             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2238             disable altivec
2239         ;;
2240         e500)
2241             cpuflags="-mcpu=8540 -mhard-float"
2242             disable altivec
2243         ;;
2244     esac
2245
2246 elif enabled x86; then
2247
2248     case $cpu in
2249         i[345]86|pentium)
2250             cpuflags="-march=$cpu"
2251             disable mmx
2252         ;;
2253         # targets that do NOT support conditional mov (cmov)
2254         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2255             cpuflags="-march=$cpu"
2256             disable cmov
2257         ;;
2258         # targets that do support conditional mov (cmov)
2259         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2260             cpuflags="-march=$cpu"
2261             enable cmov
2262             enable fast_cmov
2263         ;;
2264         # targets that do support conditional mov but on which it's slow
2265         pentium4|pentium4m|prescott|nocona)
2266             cpuflags="-march=$cpu"
2267             enable cmov
2268             disable fast_cmov
2269         ;;
2270     esac
2271
2272 elif enabled sparc; then
2273
2274     case $cpu in
2275         niagara)
2276             cpuflags="-mcpu=$cpu"
2277             disable vis
2278         ;;
2279         sparc64)
2280             cpuflags="-mcpu=v9"
2281         ;;
2282     esac
2283
2284 elif enabled arm; then
2285
2286     case $cpu in
2287         armv*)
2288             cpuflags="-march=$cpu"
2289             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2290         ;;
2291         *)
2292             cpuflags="-mcpu=$cpu"
2293             case $cpu in
2294                 cortex-a*)                               subarch=armv7a  ;;
2295                 cortex-r*)                               subarch=armv7r  ;;
2296                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2297                 arm11*)                                  subarch=armv6   ;;
2298                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2299                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2300             esac
2301         ;;
2302     esac
2303
2304 elif enabled alpha; then
2305
2306     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2307
2308 elif enabled bfin; then
2309
2310     cpuflags="-mcpu=$cpu"
2311
2312 elif enabled mips; then
2313
2314     cpuflags="-march=$cpu"
2315
2316 elif enabled avr32; then
2317
2318     case $cpu in
2319         ap7[02]0[0-2])
2320             subarch="avr32_ap"
2321             cpuflags="-mpart=$cpu"
2322         ;;
2323         ap)
2324             subarch="avr32_ap"
2325             cpuflags="-march=$cpu"
2326         ;;
2327         uc3[ab]*)
2328             subarch="avr32_uc"
2329             cpuflags="-mcpu=$cpu"
2330         ;;
2331         uc)
2332             subarch="avr32_uc"
2333             cpuflags="-march=$cpu"
2334         ;;
2335     esac
2336
2337 fi
2338
2339 add_cflags $cpuflags
2340 add_asflags $cpuflags
2341
2342 # compiler sanity check
2343 check_exec <<EOF
2344 int main(void){ return 0; }
2345 EOF
2346 if test "$?" != 0; then
2347     echo "$cc is unable to create an executable file."
2348     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2349         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2350         echo "Only do this if you know what cross compiling means."
2351     fi
2352     die "C compiler test failed."
2353 fi
2354
2355 add_cppflags -D_ISOC99_SOURCE
2356 check_cflags -std=c99
2357 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2358 #include <stdlib.h>
2359 EOF
2360 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2361 #include <stdlib.h>
2362 EOF
2363
2364 check_host_cflags -std=c99
2365 check_host_cflags -Wall
2366
2367 case "$arch" in
2368     alpha|ia64|mips|parisc|sparc)
2369         spic=$shared
2370     ;;
2371     x86)
2372         subarch="x86_32"
2373         check_cc <<EOF && subarch="x86_64"
2374         int test[(int)sizeof(char*) - 7];
2375 EOF
2376         if test "$subarch" = "x86_64"; then
2377             spic=$shared
2378         fi
2379     ;;
2380 esac
2381
2382 enable $subarch
2383 enabled spic && enable pic
2384
2385 # OS specific
2386 case $target_os in
2387     haiku)
2388         prefix_default="/boot/common"
2389         network_extralibs="-lnetwork"
2390         host_libs=
2391         ;;
2392     sunos)
2393         AVSERVERLDFLAGS=""
2394         SHFLAGS='-shared -Wl,-h,$$(@F)'
2395         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2396         network_extralibs="-lsocket -lnsl"
2397         add_cppflags -D__EXTENSIONS__
2398         # When using suncc to build, the Solaris linker will mark
2399         # an executable with each instruction set encountered by
2400         # the Solaris assembler.  As our libraries contain their own
2401         # guards for processor-specific code, instead suppress
2402         # generation of the HWCAPS ELF section on Solaris x86 only.
2403         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2404         nm_opts='-P -g'
2405         ;;
2406     netbsd)
2407         disable symver
2408         oss_indev_extralibs="-lossaudio"
2409         oss_outdev_extralibs="-lossaudio"
2410         ;;
2411     openbsd)
2412         enable malloc_aligned
2413         # On OpenBSD 4.5. the compiler does not use PIC unless
2414         # explicitly using -fPIC. Libav builds fine without PIC,
2415         # however the generated executable will not do anything
2416         # (simply quits with exit-code 1, no crash, no output).
2417         # Thus explicitly enable PIC here.
2418         enable pic
2419         disable symver
2420         SHFLAGS='-shared'
2421         oss_indev_extralibs="-lossaudio"
2422         oss_outdev_extralibs="-lossaudio"
2423         ;;
2424     dragonfly)
2425         enable malloc_aligned
2426         disable symver
2427         ;;
2428     freebsd)
2429         enable malloc_aligned
2430         ;;
2431     bsd/os)
2432         add_extralibs -lpoll -lgnugetopt
2433         ;;
2434     darwin)
2435         enable malloc_aligned
2436         gas="gas-preprocessor.pl $cc"
2437         enabled ppc && add_asflags -force_cpusubtype_ALL
2438         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2439         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2440         add_ldflags -Wl,-dynamic,-search_paths_first
2441         SLIBSUF=".dylib"
2442         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2443         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2444         AVSERVERLDFLAGS=-Wl,-bind_at_load
2445         objformat="macho"
2446         enabled x86_64 && objformat="macho64"
2447         enabled_any pic shared ||
2448             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2449         ;;
2450     mingw32*)
2451         if test $target_os = "mingw32ce"; then
2452             disable network
2453         else
2454             target_os=mingw32
2455         fi
2456         LIBTARGET=i386
2457         if enabled x86_64; then
2458             enable malloc_aligned
2459             LIBTARGET="i386:x86-64"
2460         elif enabled arm; then
2461             LIBTARGET=arm-wince
2462         fi
2463         shlibdir_default="$bindir_default"
2464         SLIBPREF=""
2465         SLIBSUF=".dll"
2466         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2467         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2468         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2469         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2470         SLIB_INSTALL_LINKS=
2471         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2472         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2473         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'
2474         objformat="win32"
2475         dlltool="${cross_prefix}dlltool"
2476         enable dos_paths
2477         check_cflags -fno-common
2478         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2479                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2480                 die "ERROR: MinGW runtime version must be >= 3.15."
2481         add_cppflags -U__STRICT_ANSI__
2482         ;;
2483     cygwin*)
2484         target_os=cygwin
2485         shlibdir_default="$bindir_default"
2486         SLIBPREF="cyg"
2487         SLIBSUF=".dll"
2488         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2489         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2490         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2491         objformat="win32"
2492         enable dos_paths
2493         check_cflags -fno-common
2494         add_cppflags -U__STRICT_ANSI__
2495         ;;
2496     *-dos|freedos|opendos)
2497         network_extralibs="-lsocket"
2498         objformat="coff"
2499         enable dos_paths
2500         add_cppflags -U__STRICT_ANSI__
2501         ;;
2502     linux)
2503         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2504         enable dv1394
2505         ;;
2506     irix*)
2507         target_os=irix
2508         ranlib="echo ignoring ranlib"
2509         ;;
2510     os/2*)
2511         ln_s="cp -f"
2512         objformat="aout"
2513         add_cppflags -D_GNU_SOURCE
2514         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2515         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2516         AVSERVERLDFLAGS=""
2517         LIBSUF="_s.a"
2518         SLIBPREF=""
2519         SLIBSUF=".dll"
2520         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2521         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2522         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2523           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2524           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2525           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2526           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2527           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2528         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2529           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2530         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2531         enable dos_paths
2532         ;;
2533     gnu/kfreebsd)
2534         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2535         ;;
2536     gnu)
2537         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2538         ;;
2539     qnx)
2540         add_cppflags -D_QNX_SOURCE
2541         network_extralibs="-lsocket"
2542         ;;
2543     symbian)
2544         SLIBSUF=".dll"
2545         enable dos_paths
2546         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2547         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2548         add_ldflags -Wl,--target1-abs,--no-undefined \
2549                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2550                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2551         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2552                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2553                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2554         ;;
2555     none)
2556         ;;
2557     *)
2558         die "Unknown OS '$target_os'."
2559         ;;
2560 esac
2561
2562 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2563
2564 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2565
2566 set_default $PATHS_LIST
2567
2568 # we need to build at least one lib type
2569 if ! enabled_any static shared; then
2570     cat <<EOF
2571 At least one library type must be built.
2572 Specify --enable-static to build the static libraries or --enable-shared to
2573 build the shared libraries as well. To only build the shared libraries specify
2574 --disable-static in addition to --enable-shared.
2575 EOF
2576     exit 1;
2577 fi
2578
2579 die_license_disabled() {
2580     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2581 }
2582
2583 die_license_disabled gpl libcdio
2584 die_license_disabled gpl libx264
2585 die_license_disabled gpl libxavs
2586 die_license_disabled gpl libxvid
2587 die_license_disabled gpl x11grab
2588
2589 die_license_disabled nonfree libfaac
2590 die_license_disabled nonfree openssl
2591
2592 die_license_disabled version3 libopencore_amrnb
2593 die_license_disabled version3 libopencore_amrwb
2594 die_license_disabled version3 libvo_aacenc
2595 die_license_disabled version3 libvo_amrwbenc
2596
2597 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2598
2599 disabled optimizations || check_cflags -fomit-frame-pointer
2600
2601 enable_pic() {
2602     enable pic
2603     add_cppflags -DPIC
2604     add_cflags   -fPIC
2605     add_asflags  -fPIC
2606 }
2607
2608 enabled pic && enable_pic
2609
2610 check_cc <<EOF || die "Symbol mangling check failed."
2611 int ff_extern;
2612 EOF
2613 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2614 extern_prefix=${sym%%ff_extern*}
2615
2616 check_cc <<EOF && enable inline_asm
2617 void foo(void) { __asm__ volatile ("" ::); }
2618 EOF
2619
2620 _restrict=
2621 for restrict_keyword in restrict __restrict__ __restrict; do
2622     check_cc <<EOF && _restrict=$restrict_keyword && break
2623 void foo(char * $restrict_keyword p);
2624 EOF
2625 done
2626
2627 check_cc <<EOF && enable attribute_packed
2628 struct { int x; } __attribute__((packed)) x;
2629 EOF
2630
2631 check_cc <<EOF && enable attribute_may_alias
2632 union { int x; } __attribute__((may_alias)) x;
2633 EOF
2634
2635 check_cc <<EOF || die "endian test failed"
2636 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2637 EOF
2638 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2639
2640 if enabled alpha; then
2641
2642     check_cflags -mieee
2643
2644 elif enabled arm; then
2645
2646     enabled thumb && check_cflags -mthumb || check_cflags -marm
2647     nogas=die
2648
2649     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2650         enable vfp_args
2651     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2652         case "${cross_prefix:-$cc}" in
2653             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2654             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2655 __asm__ (".eabi_attribute 28, 1");
2656 int main(void) { return 0; }
2657 EOF
2658         esac
2659         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2660     fi
2661
2662     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2663     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2664     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2665     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2666     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2667     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2668     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2669
2670     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2671
2672     enabled_all armv6t2 shared !pic && enable_pic
2673
2674 elif enabled mips; then
2675
2676     check_asm loongson '"dmult.g $1, $2, $3"'
2677     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2678
2679 elif enabled ppc; then
2680
2681     enable local_aligned_8 local_aligned_16
2682
2683     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2684     check_asm ibm_asm   '"add 0, 0, 0"'
2685     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2686     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2687
2688     # AltiVec flags: The FSF version of GCC differs from the Apple version
2689     if enabled altivec; then
2690         nogas=warn
2691         check_cflags -maltivec -mabi=altivec &&
2692         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2693         check_cflags -faltivec
2694
2695         # check if our compiler supports Motorola AltiVec C API
2696         check_cc <<EOF || disable altivec
2697 $inc_altivec_h
2698 int main(void) {
2699     vector signed int v1, v2, v3;
2700     v1 = vec_add(v2,v3);
2701     return 0;
2702 }
2703 EOF
2704
2705         # check if our compiler supports braces for vector declarations
2706         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2707 $inc_altivec_h
2708 int main (void) { (vector int) {1}; return 0; }
2709 EOF
2710     fi
2711
2712 elif enabled sparc; then
2713
2714     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2715         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2716
2717 elif enabled x86; then
2718
2719     enable local_aligned_8 local_aligned_16
2720
2721     # check whether EBP is available on x86
2722     # As 'i' is stored on the stack, this program will crash
2723     # if the base pointer is used to access it because the
2724     # base pointer is cleared in the inline assembly code.
2725     check_exec_crash <<EOF && enable ebp_available
2726     volatile int i=0;
2727     __asm__ volatile (
2728         "xorl %%ebp, %%ebp"
2729     ::: "%ebp");
2730     return i;
2731 EOF
2732
2733     # check whether EBX is available on x86
2734     check_asm ebx_available '""::"b"(0)' &&
2735         check_asm ebx_available '"":::"%ebx"'
2736
2737     # check whether xmm clobbers are supported
2738     check_asm xmm_clobbers '"":::"%xmm0"'
2739
2740     # check whether binutils is new enough to compile SSSE3/MMX2
2741     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2742     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2743
2744     check_asm bswap '"bswap %%eax" ::: "%eax"'
2745
2746     if ! disabled_any asm mmx yasm; then
2747         if check_cmd $yasmexe --version; then
2748             enabled x86_64 && yasm_extra="-m amd64"
2749             yasm_debug="-g dwarf2"
2750         elif check_cmd nasm -v; then
2751             yasmexe=nasm
2752             yasm_debug="-g -F dwarf"
2753             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2754         fi
2755
2756         YASMFLAGS="-f $objformat $yasm_extra"
2757         enabled pic               && append YASMFLAGS "-DPIC"
2758         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2759         case "$objformat" in
2760             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2761         esac
2762
2763         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2764             die "yasm not found, use --disable-yasm for a crippled build"
2765         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2766     fi
2767
2768     case "$cpu" in
2769         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2770             disable fast_clz
2771         ;;
2772     esac
2773
2774 fi
2775
2776 if enabled asm; then
2777     as=${gas:=$as}
2778     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2779         $nogas "GNU assembler not found, install gas-preprocessor"
2780 fi
2781
2782 check_ldflags -Wl,--as-needed
2783
2784 if check_func dlopen; then
2785     ldl=
2786 elif check_func dlopen -ldl; then
2787     ldl=-ldl
2788 fi
2789
2790 if enabled network; then
2791     check_type "sys/types.h sys/socket.h" socklen_t
2792     check_type netdb.h "struct addrinfo"
2793     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2794     check_type netinet/in.h "struct sockaddr_in6"
2795     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2796     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2797     # Prefer arpa/inet.h over winsock2
2798     if check_header arpa/inet.h ; then
2799         check_func closesocket
2800     elif check_header winsock2.h ; then
2801         check_func_headers winsock2.h closesocket -lws2 && \
2802             network_extralibs="-lws2" || \
2803         { check_func_headers winsock2.h closesocket -lws2_32 && \
2804             network_extralibs="-lws2_32"; }
2805         check_type ws2tcpip.h socklen_t
2806         check_type ws2tcpip.h "struct addrinfo"
2807         check_type ws2tcpip.h "struct ipv6_mreq"
2808         check_type ws2tcpip.h "struct sockaddr_in6"
2809         check_type ws2tcpip.h "struct sockaddr_storage"
2810         check_struct winsock2.h "struct sockaddr" sa_len
2811     else
2812         disable network
2813     fi
2814 fi
2815
2816 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2817 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2818
2819 check_func  fcntl
2820 check_func  fork
2821 check_func  getaddrinfo $network_extralibs
2822 check_func  gethrtime
2823 check_func  getrusage
2824 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2825 check_func  inet_aton $network_extralibs
2826 check_func  isatty
2827 check_func  localtime_r
2828 check_func  ${malloc_prefix}memalign            && enable memalign
2829 check_func  mkstemp
2830 check_func  mmap
2831 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2832 check_func  setrlimit
2833 check_func  strerror_r
2834 check_func  strptime
2835 check_func  strtok_r
2836 check_func_headers io.h setmode
2837 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2838 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2839 check_func_headers windows.h GetProcessTimes
2840 check_func_headers windows.h MapViewOfFile
2841 check_func_headers windows.h VirtualAlloc
2842
2843 check_header dlfcn.h
2844 check_header dxva2api.h
2845 check_header malloc.h
2846 check_header poll.h
2847 check_header sys/mman.h
2848 check_header sys/resource.h
2849 check_header sys/select.h
2850 check_header vdpau/vdpau.h
2851 check_header vdpau/vdpau_x11.h
2852 check_header X11/extensions/XvMClib.h
2853
2854 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2855
2856 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2857 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2858
2859 if ! disabled w32threads && ! enabled pthreads; then
2860     check_func _beginthreadex && enable w32threads
2861 fi
2862
2863 # check for some common methods of building with pthread support
2864 # do this before the optional library checks as some of them require pthreads
2865 if ! disabled pthreads && ! enabled w32threads; then
2866     enable pthreads
2867     if check_func pthread_create; then
2868         :
2869     elif check_func pthread_create -pthread; then
2870         add_cflags -pthread
2871         add_extralibs -pthread
2872     elif check_func pthread_create -pthreads; then
2873         add_cflags -pthreads
2874         add_extralibs -pthreads
2875     elif check_func pthread_create -lpthreadGC2; then
2876         add_extralibs -lpthreadGC2
2877     elif ! check_lib pthread.h pthread_create -lpthread; then
2878         disable pthreads
2879     fi
2880 fi
2881
2882 for thread in $THREADS_LIST; do
2883     if enabled $thread; then
2884         test -n "$thread_type" &&
2885             die "ERROR: Only one thread type must be selected." ||
2886             thread_type="$thread"
2887     fi
2888 done
2889
2890 check_lib math.h sin -lm && LIBM="-lm"
2891 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2892
2893 check_mathfunc exp2
2894 check_mathfunc exp2f
2895 check_mathfunc llrint
2896 check_mathfunc llrintf
2897 check_mathfunc log2
2898 check_mathfunc log2f
2899 check_mathfunc lrint
2900 check_mathfunc lrintf
2901 check_mathfunc round
2902 check_mathfunc roundf
2903 check_mathfunc trunc
2904 check_mathfunc truncf
2905
2906 # these are off by default, so fail if requested and not available
2907 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2908 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2909 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2910 enabled libdirac   && require_pkg_config dirac                          \
2911     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2912     "dirac_decoder_init dirac_encoder_init"
2913 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2914 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2915 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2916 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2917 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2918 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2919 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2920 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2921 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2922 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2923 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2924 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2925 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2926 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2927 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2928 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2929 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2930 enabled libvpx     && {
2931     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2932                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2933     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2934                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2935 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2936                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2937                         die "ERROR: libx264 version must be >= 0.118."; }
2938 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2939 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2940 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2941 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2942                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2943                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2944                         die "ERROR: openssl not found"; }
2945
2946 # libdc1394 check
2947 if enabled libdc1394; then
2948     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2949         enable libdc1394_2; } ||
2950     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2951         enable libdc1394_1; } ||
2952     die "ERROR: No version of libdc1394 found "
2953 fi
2954
2955 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2956     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2957     enable sdl &&
2958     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2959 fi
2960
2961 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2962
2963 check_header linux/fb.h
2964 check_header linux/videodev.h
2965 check_header linux/videodev2.h
2966 check_header sys/videoio.h
2967
2968 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2969 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2970 # w32api 3.12 had it defined wrong
2971 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2972
2973 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2974 { check_header dev/bktr/ioctl_meteor.h &&
2975   check_header dev/bktr/ioctl_bt848.h; } ||
2976 { check_header machine/ioctl_meteor.h &&
2977   check_header machine/ioctl_bt848.h; } ||
2978 { check_header dev/video/meteor/ioctl_meteor.h &&
2979   check_header dev/video/bktr/ioctl_bt848.h; } ||
2980 check_header dev/ic/bt8xx.h
2981
2982 check_header sndio.h
2983 check_header sys/soundcard.h
2984 check_header soundcard.h
2985
2986 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2987
2988 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2989
2990 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2991
2992 enabled libcdio &&
2993     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2994
2995 enabled x11grab                         &&
2996 check_header X11/Xlib.h                 &&
2997 check_header X11/extensions/XShm.h      &&
2998 check_header X11/extensions/Xfixes.h    &&
2999 check_func XOpenDisplay -lX11           &&
3000 check_func XShmCreateImage -lX11 -lXext &&
3001 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3002
3003 # check for VDA header
3004 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3005     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3006 fi
3007
3008 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3009 check_cpp_condition \
3010     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3011     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3012       disable vdpau; }
3013 fi
3014
3015 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3016
3017 # add some useful compiler flags if supported
3018 check_cflags -Wdeclaration-after-statement
3019 check_cflags -Wall
3020 check_cflags -Wno-parentheses
3021 check_cflags -Wno-switch
3022 check_cflags -Wno-format-zero-length
3023 check_cflags -Wdisabled-optimization
3024 check_cflags -Wpointer-arith
3025 check_cflags -Wredundant-decls
3026 check_cflags -Wno-pointer-sign
3027 check_cflags -Wcast-qual
3028 check_cflags -Wwrite-strings
3029 check_cflags -Wtype-limits
3030 check_cflags -Wundef
3031 check_cflags -Wmissing-prototypes
3032 check_cflags -Wstrict-prototypes
3033 enabled extra_warnings && check_cflags -Winline
3034
3035 # add some linker flags
3036 check_ldflags -Wl,--warn-common
3037 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3038 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3039
3040 echo "X{};" > $TMPV
3041 if test_ldflags -Wl,--version-script,$TMPV; then
3042     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3043     check_cc <<EOF && enable symver_asm_label
3044 void ff_foo(void) __asm__ ("av_foo@VERSION");
3045 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3046 EOF
3047     check_cc <<EOF && enable symver_gnu_asm
3048 __asm__(".symver ff_foo,av_foo@VERSION");
3049 void ff_foo(void) {}
3050 EOF
3051 fi
3052
3053 if [ -n "$optflags" ]; then
3054     add_cflags $optflags
3055 elif enabled small; then
3056     add_cflags $size_cflags
3057 elif enabled optimizations; then
3058     add_cflags $speed_cflags
3059 else
3060     add_cflags $noopt_cflags
3061 fi
3062 check_cflags -fno-math-errno
3063 check_cflags -fno-signed-zeros
3064
3065 if enabled icc; then
3066     # Just warnings, no remarks
3067     check_cflags -w1
3068     # -wd: Disable following warnings
3069     # 144, 167, 556: -Wno-pointer-sign
3070     # 1292: attribute "foo" ignored
3071     # 10006: ignoring unknown option -fno-signed-zeros
3072     # 10148: ignoring unknown option -Wno-parentheses
3073     # 10156: ignoring option '-W'; no argument required
3074     check_cflags -wd144,167,556,1292,10006,10148,10156
3075     # 11030: Warning unknown option --as-needed
3076     # 10156: ignoring option '-export'; no argument required
3077     check_ldflags -wd10156,11030
3078     # Allow to compile with optimizations
3079     check_ldflags -march=$cpu
3080     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3081     enable ebp_available
3082     if enabled x86_32; then
3083         test ${icc_version%%.*} -ge 11 && \
3084             check_cflags -falign-stack=maintain-16-byte || \
3085             disable aligned_stack
3086     fi
3087 elif enabled ccc; then
3088     # disable some annoying warnings
3089     add_cflags -msg_disable cvtu32to64
3090     add_cflags -msg_disable embedcomment
3091     add_cflags -msg_disable needconstext
3092     add_cflags -msg_disable nomainieee
3093     add_cflags -msg_disable ptrmismatch1
3094     add_cflags -msg_disable unreachcode
3095 elif enabled gcc; then
3096     check_cflags -fno-tree-vectorize
3097     check_cflags -Werror=implicit-function-declaration
3098     check_cflags -Werror=missing-prototypes
3099 elif enabled llvm_gcc; then
3100     check_cflags -mllvm -stack-alignment=16
3101 elif enabled clang; then
3102     check_cflags -mllvm -stack-alignment=16
3103     check_cflags -Qunused-arguments
3104 elif enabled armcc; then
3105     # 2523: use of inline assembler is deprecated
3106     add_cflags -W${armcc_opt},--diag_suppress=2523
3107     add_cflags -W${armcc_opt},--diag_suppress=1207
3108     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3109     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3110     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3111     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3112 elif enabled tms470; then
3113     add_cflags -pds=824 -pds=837
3114 elif enabled pathscale; then
3115     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3116 fi
3117
3118 enabled_any $THREADS_LIST      && enable threads
3119
3120 check_deps $CONFIG_LIST       \
3121            $CONFIG_EXTRA      \
3122            $HAVE_LIST         \
3123            $DECODER_LIST      \
3124            $ENCODER_LIST      \
3125            $HWACCEL_LIST      \
3126            $PARSER_LIST       \
3127            $BSF_LIST          \
3128            $DEMUXER_LIST      \
3129            $MUXER_LIST        \
3130            $FILTER_LIST       \
3131            $INDEV_LIST        \
3132            $OUTDEV_LIST       \
3133            $PROTOCOL_LIST     \
3134            $ACODEC_TESTS      \
3135            $VCODEC_TESTS      \
3136            $LAVF_TESTS        \
3137            $LAVFI_TESTS       \
3138            $SEEK_TESTS        \
3139
3140 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3141
3142 ! enabled_any memalign posix_memalign malloc_aligned &&
3143     enabled_any $need_memalign && enable memalign_hack
3144
3145 echo "install prefix            $prefix"
3146 echo "source path               $source_path"
3147 echo "C compiler                $cc"
3148 echo "ARCH                      $arch ($cpu)"
3149 if test "$build_suffix" != ""; then
3150     echo "build suffix              $build_suffix"
3151 fi
3152 if test "$extra_version" != ""; then
3153     echo "version string suffix     $extra_version"
3154 fi
3155 echo "big-endian                ${bigendian-no}"
3156 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3157 if enabled x86; then
3158     echo "${yasmexe}                      ${yasm-no}"
3159     echo "MMX enabled               ${mmx-no}"
3160     echo "MMX2 enabled              ${mmx2-no}"
3161     echo "3DNow! enabled            ${amd3dnow-no}"
3162     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3163     echo "SSE enabled               ${sse-no}"
3164     echo "SSSE3 enabled             ${ssse3-no}"
3165     echo "AVX enabled               ${avx-no}"
3166     echo "CMOV enabled              ${cmov-no}"
3167     echo "CMOV is fast              ${fast_cmov-no}"
3168     echo "EBX available             ${ebx_available-no}"
3169     echo "EBP available             ${ebp_available-no}"
3170 fi
3171 if enabled arm; then
3172     echo "ARMv5TE enabled           ${armv5te-no}"
3173     echo "ARMv6 enabled             ${armv6-no}"
3174     echo "ARMv6T2 enabled           ${armv6t2-no}"
3175     echo "ARM VFP enabled           ${armvfp-no}"
3176     echo "IWMMXT enabled            ${iwmmxt-no}"
3177     echo "NEON enabled              ${neon-no}"
3178 fi
3179 if enabled mips; then
3180     echo "MMI enabled               ${mmi-no}"
3181 fi
3182 if enabled ppc; then
3183     echo "AltiVec enabled           ${altivec-no}"
3184     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3185     echo "dcbzl available           ${dcbzl-no}"
3186 fi
3187 if enabled sparc; then
3188     echo "VIS enabled               ${vis-no}"
3189 fi
3190 echo "debug symbols             ${debug-no}"
3191 echo "optimize for size         ${small-no}"
3192 echo "optimizations             ${optimizations-no}"
3193 echo "static                    ${static-no}"
3194 echo "shared                    ${shared-no}"
3195 echo "postprocessing support    ${postproc-no}"
3196 echo "new filter support        ${avfilter-no}"
3197 echo "network support           ${network-no}"
3198 echo "threading support         ${thread_type-no}"
3199 echo "SDL support               ${sdl-no}"
3200 echo "Sun medialib support      ${mlib-no}"
3201 echo "libdxva2 enabled          ${dxva2-no}"
3202 echo "libva enabled             ${vaapi-no}"
3203 echo "libvdpau enabled          ${vdpau-no}"
3204 echo "AVISynth enabled          ${avisynth-no}"
3205 echo "frei0r enabled            ${frei0r-no}"
3206 echo "gnutls enabled            ${gnutls-no}"
3207 echo "libcdio support           ${libcdio-no}"
3208 echo "libdc1394 support         ${libdc1394-no}"
3209 echo "libdirac enabled          ${libdirac-no}"
3210 echo "libfaac enabled           ${libfaac-no}"
3211 echo "libgsm enabled            ${libgsm-no}"
3212 echo "libmp3lame enabled        ${libmp3lame-no}"
3213 echo "libnut enabled            ${libnut-no}"
3214 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3215 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3216 echo "libopencv support         ${libopencv-no}"
3217 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3218 echo "libpulse enabled          ${libpulse-no}"
3219 echo "librtmp enabled           ${librtmp-no}"
3220 echo "libschroedinger enabled   ${libschroedinger-no}"
3221 echo "libspeex enabled          ${libspeex-no}"
3222 echo "libtheora enabled         ${libtheora-no}"
3223 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3224 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3225 echo "libvorbis enabled         ${libvorbis-no}"
3226 echo "libvpx enabled            ${libvpx-no}"
3227 echo "libx264 enabled           ${libx264-no}"
3228 echo "libxavs enabled           ${libxavs-no}"
3229 echo "libxvid enabled           ${libxvid-no}"
3230 echo "openssl enabled           ${openssl-no}"
3231 echo "zlib enabled              ${zlib-no}"
3232 echo "bzlib enabled             ${bzlib-no}"
3233 echo
3234
3235 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3236     echo "Enabled ${type}s:"
3237     eval list=\$$(toupper $type)_LIST
3238     print_enabled '_*' $list | sort | pr -r -3 -t
3239     echo
3240 done
3241
3242 license="LGPL version 2.1 or later"
3243 if enabled nonfree; then
3244     license="nonfree and unredistributable"
3245 elif enabled gplv3; then
3246     license="GPL version 3 or later"
3247 elif enabled lgplv3; then
3248     license="LGPL version 3 or later"
3249 elif enabled gpl; then
3250     license="GPL version 2 or later"
3251 fi
3252
3253 echo "License: $license"
3254
3255 echo "Creating config.mak and config.h..."
3256
3257 test -e Makefile || $ln_s "$source_path/Makefile" .
3258
3259 config_files="$TMPH config.mak"
3260
3261 cat > config.mak <<EOF
3262 # Automatically generated by configure - do not modify!
3263 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3264 prefix=$prefix
3265 LIBDIR=\$(DESTDIR)$libdir
3266 SHLIBDIR=\$(DESTDIR)$shlibdir
3267 INCDIR=\$(DESTDIR)$incdir
3268 BINDIR=\$(DESTDIR)$bindir
3269 DATADIR=\$(DESTDIR)$datadir
3270 MANDIR=\$(DESTDIR)$mandir
3271 SRC_PATH=$source_path
3272 CC_IDENT=$cc_ident
3273 ARCH=$arch
3274 CC=$cc
3275 AS=$as
3276 LD=$ld
3277 DEPCC=$dep_cc
3278 YASM=$yasmexe
3279 YASMDEP=$yasmexe
3280 AR=$ar
3281 RANLIB=$ranlib
3282 LN_S=$ln_s
3283 CPPFLAGS=$CPPFLAGS
3284 CFLAGS=$CFLAGS
3285 ASFLAGS=$ASFLAGS
3286 AS_O=$CC_O
3287 CC_O=$CC_O
3288 DLLTOOL=$dlltool
3289 LDFLAGS=$LDFLAGS
3290 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3291 SHFLAGS=$SHFLAGS
3292 YASMFLAGS=$YASMFLAGS
3293 BUILDSUF=$build_suffix
3294 FULLNAME=$FULLNAME
3295 LIBPREF=$LIBPREF
3296 LIBSUF=$LIBSUF
3297 LIBNAME=$LIBNAME
3298 SLIBPREF=$SLIBPREF
3299 SLIBSUF=$SLIBSUF
3300 EXESUF=$EXESUF
3301 EXTRA_VERSION=$extra_version
3302 DEPFLAGS=$DEPFLAGS
3303 CCDEP=$CCDEP
3304 ASDEP=$ASDEP
3305 CC_DEPFLAGS=$CC_DEPFLAGS
3306 AS_DEPFLAGS=$AS_DEPFLAGS
3307 HOSTCC=$host_cc
3308 HOSTCFLAGS=$host_cflags
3309 HOSTEXESUF=$HOSTEXESUF
3310 HOSTLDFLAGS=$host_ldflags
3311 HOSTLIBS=$host_libs
3312 TARGET_EXEC=$target_exec
3313 TARGET_PATH=$target_path
3314 SDL_LIBS=$sdl_libs
3315 SDL_CFLAGS=$sdl_cflags
3316 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3317 EXTRALIBS=$extralibs
3318 INSTALL=install
3319 LIBTARGET=${LIBTARGET}
3320 SLIBNAME=${SLIBNAME}
3321 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3322 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3323 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3324 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3325 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3326 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3327 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3328 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3329 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3330 EOF
3331
3332 get_version(){
3333     name=$1
3334     file=$source_path/$2
3335     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3336     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3337     lcname=$(tolower $name)
3338     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3339     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3340 }
3341
3342 get_version LIBSWSCALE  libswscale/swscale.h
3343 get_version LIBPOSTPROC libpostproc/postprocess.h
3344 get_version LIBAVCODEC  libavcodec/version.h
3345 get_version LIBAVDEVICE libavdevice/avdevice.h
3346 get_version LIBAVFORMAT libavformat/version.h
3347 get_version LIBAVUTIL   libavutil/avutil.h
3348 get_version LIBAVFILTER libavfilter/avfilter.h
3349
3350 cat > $TMPH <<EOF
3351 /* Automatically generated by configure - do not modify! */
3352 #ifndef LIBAV_CONFIG_H
3353 #define LIBAV_CONFIG_H
3354 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3355 #define LIBAV_LICENSE "$(c_escape $license)"
3356 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3357 #define CC_TYPE "$cc_type"
3358 #define CC_VERSION $cc_version
3359 #define restrict $_restrict
3360 #define EXTERN_PREFIX "${extern_prefix}"
3361 #define EXTERN_ASM ${extern_prefix}
3362 #define SLIBSUF "$SLIBSUF"
3363 EOF
3364
3365 test -n "$malloc_prefix" &&
3366     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3367
3368 if enabled small || disabled optimizations; then
3369     echo "#undef  av_always_inline"  >> $TMPH
3370     if enabled small; then
3371         echo "#define av_always_inline inline"  >> $TMPH
3372     else
3373         echo "#define av_always_inline av_unused"  >> $TMPH
3374     fi
3375 fi
3376
3377 if enabled yasm; then
3378     append config_files $TMPASM
3379     printf '' >$TMPASM
3380 fi
3381
3382 print_config ARCH_   "$config_files" $ARCH_LIST
3383 print_config HAVE_   "$config_files" $HAVE_LIST
3384 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3385                                      $CONFIG_EXTRA      \
3386                                      $DECODER_LIST      \
3387                                      $ENCODER_LIST      \
3388                                      $HWACCEL_LIST      \
3389                                      $PARSER_LIST       \
3390                                      $BSF_LIST          \
3391                                      $DEMUXER_LIST      \
3392                                      $MUXER_LIST        \
3393                                      $FILTER_LIST       \
3394                                      $PROTOCOL_LIST     \
3395                                      $INDEV_LIST        \
3396                                      $OUTDEV_LIST       \
3397
3398 cat >>config.mak <<EOF
3399 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3400 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3401 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3402 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3403 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3404 EOF
3405
3406 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3407
3408 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3409 cp_if_changed $TMPH config.h
3410 touch .config
3411
3412 enabled yasm && cp_if_changed $TMPASM config.asm
3413
3414 cat > $TMPH <<EOF
3415 /* Generated by ffconf */
3416 #ifndef AVUTIL_AVCONFIG_H
3417 #define AVUTIL_AVCONFIG_H
3418 EOF
3419
3420 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3421
3422 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3423
3424 cp_if_changed $TMPH libavutil/avconfig.h
3425
3426 test -n "$WARNINGS" && printf "\n$WARNINGS"
3427
3428 # build pkg-config files
3429
3430 pkgconfig_generate(){
3431 name=$1
3432 shortname=${name#lib}${build_suffix}
3433 comment=$2
3434 version=$3
3435 libs=$4
3436 requires=$5
3437 enabled ${name#lib} || return 0
3438 mkdir -p $name
3439 cat <<EOF > $name/$name.pc
3440 prefix=$prefix
3441 exec_prefix=\${prefix}
3442 libdir=$libdir
3443 includedir=$incdir
3444
3445 Name: $name
3446 Description: $comment
3447 Version: $version
3448 Requires: $(enabled shared || echo $requires)
3449 Requires.private: $(enabled shared && echo $requires)
3450 Conflicts:
3451 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3452 Libs.private: $(enabled shared && echo $libs)
3453 Cflags: -I\${includedir}
3454 EOF
3455 cat <<EOF > $name/$name-uninstalled.pc
3456 prefix=
3457 exec_prefix=
3458 libdir=\${pcfiledir}
3459 includedir=${source_path}
3460
3461 Name: $name
3462 Description: $comment
3463 Version: $version
3464 Requires: $requires
3465 Conflicts:
3466 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3467 Cflags: -I\${includedir}
3468 EOF
3469 }
3470
3471 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3472 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3473 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3474 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3475 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3476 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3477 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"