Remove Sun medialib glue code.
[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-avconv         disable avconv build
84   --disable-avplay         disable avplay build
85   --disable-avprobe        disable avprobe build
86   --disable-avserver       disable avserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --enable-postproc        enable libpostproc build (deprecated) [no]
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --disable-w32threads     disable Win32 threads [auto]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vda             enable VDA code
111   --enable-vdpau           enable VDPAU code
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --disable-safe-bitstream-reader
116                            disable buffer boundary checking in bitreaders
117                            (faster, but may crash)
118   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
119   --disable-everything     disable all components listed below
120   --disable-encoder=NAME   disable encoder NAME
121   --enable-encoder=NAME    enable encoder NAME
122   --disable-encoders       disable all encoders
123   --disable-decoder=NAME   disable decoder NAME
124   --enable-decoder=NAME    enable decoder NAME
125   --disable-decoders       disable all decoders
126   --disable-hwaccel=NAME   disable hwaccel NAME
127   --enable-hwaccel=NAME    enable hwaccel NAME
128   --disable-hwaccels       disable all hwaccels
129   --disable-muxer=NAME     disable muxer NAME
130   --enable-muxer=NAME      enable muxer NAME
131   --disable-muxers         disable all muxers
132   --disable-demuxer=NAME   disable demuxer NAME
133   --enable-demuxer=NAME    enable demuxer NAME
134   --disable-demuxers       disable all demuxers
135   --enable-parser=NAME     enable parser NAME
136   --disable-parser=NAME    disable parser NAME
137   --disable-parsers        disable all parsers
138   --enable-bsf=NAME        enable bitstream filter NAME
139   --disable-bsf=NAME       disable bitstream filter NAME
140   --disable-bsfs           disable all bitstream filters
141   --enable-protocol=NAME   enable protocol NAME
142   --disable-protocol=NAME  disable protocol NAME
143   --disable-protocols      disable all protocols
144   --disable-indev=NAME     disable input device NAME
145   --disable-outdev=NAME    disable output device NAME
146   --disable-indevs         disable input devices
147   --disable-outdevs        disable output devices
148   --disable-devices        disable all devices
149   --enable-filter=NAME     enable filter NAME
150   --disable-filter=NAME    disable filter NAME
151   --disable-filters        disable all filters
152   --list-decoders          show all available decoders
153   --list-encoders          show all available encoders
154   --list-hwaccels          show all available hardware accelerators
155   --list-muxers            show all available muxers
156   --list-demuxers          show all available demuxers
157   --list-parsers           show all available parsers
158   --list-protocols         show all available protocols
159   --list-bsfs              show all available bitstream filters
160   --list-indevs            show all available input devices
161   --list-outdevs           show all available output devices
162   --list-filters           show all available filters
163
164 External library support:
165   --enable-avisynth        enable reading of AVISynth script files [no]
166   --enable-bzlib           enable bzlib [autodetect]
167   --enable-frei0r          enable frei0r video filtering
168   --enable-gnutls          enable gnutls [no]
169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
171   --enable-libopencv       enable video filtering via libopencv [no]
172   --enable-libcdio         enable audio CD grabbing with libcdio
173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
174                            and libraw1394 [no]
175   --enable-libdirac        enable Dirac support via libdirac [no]
176   --enable-libfaac         enable FAAC support via libfaac [no]
177   --enable-libfreetype     enable libfreetype [no]
178   --enable-libgsm          enable GSM support via libgsm [no]
179   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
180   --enable-libnut          enable NUT (de)muxing via libnut,
181                            native (de)muxer exists [no]
182   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
183   --enable-libpulse        enable Pulseaudio input via libpulse [no]
184   --enable-librtmp         enable RTMP[E] support via librtmp [no]
185   --enable-libschroedinger enable Dirac support via libschroedinger [no]
186   --enable-libspeex        enable Speex support via libspeex [no]
187   --enable-libtheora       enable Theora encoding via libtheora [no]
188   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
189   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
190   --enable-libvorbis       enable Vorbis encoding via libvorbis,
191                            native implementation exists [no]
192   --enable-libvpx          enable VP8 support via libvpx [no]
193   --enable-libx264         enable H.264 encoding via x264 [no]
194   --enable-libxavs         enable AVS encoding via xavs [no]
195   --enable-libxvid         enable Xvid encoding via xvidcore,
196                            native MPEG-4/Xvid encoder exists [no]
197   --enable-openssl         enable openssl [no]
198   --enable-zlib            enable zlib [autodetect]
199
200 Advanced options (experts only):
201   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
202   --enable-cross-compile   assume a cross-compiler is used
203   --sysroot=PATH           root of cross-build tree
204   --sysinclude=PATH        location of cross-build system headers
205   --target-os=OS           compiler targets OS [$target_os]
206   --target-exec=CMD        command to run executables on target
207   --target-path=DIR        path to view of build directory on target
208   --nm=NM                  use nm tool
209   --ar=AR                  use archive tool AR [$ar_default]
210   --as=AS                  use assembler AS [$as_default]
211   --cc=CC                  use C compiler CC [$cc_default]
212   --ld=LD                  use linker LD
213   --host-cc=HOSTCC         use host C compiler HOSTCC
214   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
215   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
216   --host-libs=HLIBS        use libs HLIBS when linking for host
217   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
218   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
219   --extra-libs=ELIBS       add ELIBS [$ELIBS]
220   --extra-version=STRING   version string suffix []
221   --build-suffix=SUFFIX    library name suffix []
222   --arch=ARCH              select architecture [$arch]
223   --cpu=CPU                select the minimum required CPU (affects
224                            instruction selection, may crash on older CPUs)
225   --disable-asm            disable all assembler optimizations
226   --disable-altivec        disable AltiVec optimizations
227   --disable-amd3dnow       disable 3DNow! optimizations
228   --disable-amd3dnowext    disable 3DNow! extended optimizations
229   --disable-mmx            disable MMX optimizations
230   --disable-mmx2           disable MMX2 optimizations
231   --disable-sse            disable SSE optimizations
232   --disable-ssse3          disable SSSE3 optimizations
233   --disable-avx            disable AVX optimizations
234   --disable-armv5te        disable armv5te optimizations
235   --disable-armv6          disable armv6 optimizations
236   --disable-armv6t2        disable armv6t2 optimizations
237   --disable-armvfp         disable ARM VFP optimizations
238   --disable-iwmmxt         disable iwmmxt optimizations
239   --disable-mmi            disable MMI optimizations
240   --disable-neon           disable NEON optimizations
241   --disable-vis            disable VIS optimizations
242   --disable-yasm           disable use of yasm assembler
243   --enable-pic             build position-independent code
244   --malloc-prefix=PFX      prefix malloc and related names with PFX
245   --enable-sram            allow use of on-chip SRAM
246   --disable-symver         disable symbol versioning
247   --optflags               override optimization-related compiler flags
248
249 Developer options (useful when working on Libav itself):
250   --disable-debug          disable debugging symbols
251   --enable-debug=LEVEL     set the debug level [$debuglevel]
252   --disable-optimizations  disable compiler optimizations
253   --enable-extra-warnings  enable more compiler warnings
254   --samples=PATH           location of test samples for FATE, if not set use
255                            \$FATE_SAMPLES at make invocation time.
256   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
257                            should be used only for debugging purposes)
258
259 NOTE: Object files are built at the place where configure is launched.
260 EOF
261   exit 0
262 }
263
264 quotes='""'
265
266 log(){
267     echo "$@" >> $logfile
268 }
269
270 log_file(){
271     log BEGIN $1
272     pr -n -t $1 >> $logfile
273     log END $1
274 }
275
276 echolog(){
277     log "$@"
278     echo "$@"
279 }
280
281 warn(){
282     log "WARNING: $*"
283     WARNINGS="${WARNINGS}WARNING: $*\n"
284 }
285
286 die(){
287     echolog "$@"
288     cat <<EOF
289
290 If you think configure made a mistake, make sure you are using the latest
291 version from Git.  If the latest version fails, report the problem to the
292 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
293 EOF
294     if disabled logging; then
295         cat <<EOF
296 Rerun configure with logging enabled (do not use --disable-logging), and
297 include the log this produces with your report.
298 EOF
299     else
300 cat <<EOF
301 Include the log file "$logfile" produced by configure as this will help
302 solving the problem.
303 EOF
304     fi
305     exit 1
306 }
307
308 # Avoid locale weirdness, besides we really just want to translate ASCII.
309 toupper(){
310     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
311 }
312
313 tolower(){
314     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
315 }
316
317 c_escape(){
318     echo "$*" | sed 's/["\\]/\\\0/g'
319 }
320
321 sh_quote(){
322     v=$(echo "$1" | sed "s/'/'\\\\''/g")
323     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
324     echo "$v"
325 }
326
327 cleanws(){
328     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
329 }
330
331 filter(){
332     pat=$1
333     shift
334     for v; do
335         eval "case $v in $pat) echo $v ;; esac"
336     done
337 }
338
339 filter_out(){
340     pat=$1
341     shift
342     for v; do
343         eval "case $v in $pat) ;; *) echo $v ;; esac"
344     done
345 }
346
347 map(){
348     m=$1
349     shift
350     for v; do eval $m; done
351 }
352
353 set_all(){
354     value=$1
355     shift
356     for var in $*; do
357         eval $var=$value
358     done
359 }
360
361 set_weak(){
362     value=$1
363     shift
364     for var; do
365         eval : \${$var:=$value}
366     done
367 }
368
369 set_safe(){
370     var=$1
371     shift
372     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
373 }
374
375 get_safe(){
376     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
377 }
378
379 pushvar(){
380     for var in $*; do
381         eval level=\${${var}_level:=0}
382         eval ${var}_${level}="\$$var"
383         eval ${var}_level=$(($level+1))
384     done
385 }
386
387 popvar(){
388     for var in $*; do
389         eval level=\${${var}_level:-0}
390         test $level = 0 && continue
391         eval level=$(($level-1))
392         eval $var="\${${var}_${level}}"
393         eval ${var}_level=$level
394         eval unset ${var}_${level}
395     done
396 }
397
398 enable(){
399     set_all yes $*
400 }
401
402 disable(){
403     set_all no $*
404 }
405
406 enable_weak(){
407     set_weak yes $*
408 }
409
410 disable_weak(){
411     set_weak no $*
412 }
413
414 enable_safe(){
415     for var; do
416         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 disable_safe(){
421     for var; do
422         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
423     done
424 }
425
426 do_enable_deep(){
427     for var; do
428         enabled $var && continue
429         eval sel="\$${var}_select"
430         eval sgs="\$${var}_suggest"
431         pushvar var sgs
432         enable_deep $sel
433         popvar sgs
434         enable_deep_weak $sgs
435         popvar var
436     done
437 }
438
439 enable_deep(){
440     do_enable_deep $*
441     enable $*
442 }
443
444 enable_deep_weak(){
445     do_enable_deep $*
446     enable_weak $*
447 }
448
449 enabled(){
450     test "${1#!}" = "$1" && op== || op=!=
451     eval test "x\$${1#!}" $op "xyes"
452 }
453
454 disabled(){
455     test "${1#!}" = "$1" && op== || op=!=
456     eval test "x\$${1#!}" $op "xno"
457 }
458
459 enabled_all(){
460     for opt; do
461         enabled $opt || return 1
462     done
463 }
464
465 disabled_all(){
466     for opt; do
467         disabled $opt || return 1
468     done
469 }
470
471 enabled_any(){
472     for opt; do
473         enabled $opt && return 0
474     done
475 }
476
477 disabled_any(){
478     for opt; do
479         disabled $opt && return 0
480     done
481     return 1
482 }
483
484 set_default(){
485     for opt; do
486         eval : \${$opt:=\$${opt}_default}
487     done
488 }
489
490 is_in(){
491     value=$1
492     shift
493     for var in $*; do
494         [ $var = $value ] && return 0
495     done
496     return 1
497 }
498
499 check_deps(){
500     for cfg; do
501         cfg="${cfg#!}"
502         enabled ${cfg}_checking && die "Circular dependency for $cfg."
503         disabled ${cfg}_checking && continue
504         enable ${cfg}_checking
505
506         eval dep_all="\$${cfg}_deps"
507         eval dep_any="\$${cfg}_deps_any"
508         eval dep_sel="\$${cfg}_select"
509         eval dep_sgs="\$${cfg}_suggest"
510         eval dep_ifa="\$${cfg}_if"
511         eval dep_ifn="\$${cfg}_if_any"
512
513         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
514         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
515         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
516
517         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
518         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
519         enabled_all  $dep_all || disable $cfg
520         enabled_any  $dep_any || disable $cfg
521         disabled_any $dep_sel && disable $cfg
522
523         if enabled $cfg; then
524             eval dep_extralibs="\$${cfg}_extralibs"
525             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
526             enable_deep $dep_sel
527             enable_deep_weak $dep_sgs
528         fi
529
530         disable ${cfg}_checking
531     done
532 }
533
534 print_config_h(){
535     enabled $1 && v=1 || v=0
536     echo "#define $2 $v"
537 }
538
539 print_config_mak(){
540     enabled $1 && v= || v=!
541     echo "$v$2=yes"
542 }
543
544 print_config_asm(){
545     enabled $1 && v=1 || v=0
546     echo "%define $2 $v"
547 }
548
549 print_config(){
550     pfx=$1
551     files=$2
552     shift 2
553     for cfg; do
554         ucname="$(toupper $cfg)"
555         for f in $files; do
556             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
557         done
558     done
559 }
560
561 print_enabled(){
562     test "$1" = -n && end=" " && shift || end="\n"
563     suf=$1
564     shift
565     for v; do
566         enabled $v && printf "%s$end" ${v%$suf};
567     done
568 }
569
570 append(){
571     var=$1
572     shift
573     eval "$var=\"\$$var $*\""
574 }
575
576 prepend(){
577     var=$1
578     shift
579     eval "$var=\"$* \$$var\""
580 }
581
582 add_cppflags(){
583     append CPPFLAGS $($filter_cppflags "$@")
584 }
585
586 add_cflags(){
587     append CFLAGS $($filter_cflags "$@")
588 }
589
590 add_asflags(){
591     append ASFLAGS $($filter_asflags "$@")
592 }
593
594 add_ldflags(){
595     append LDFLAGS "$@"
596 }
597
598 add_extralibs(){
599     prepend extralibs "$@"
600 }
601
602 check_cmd(){
603     log "$@"
604     "$@" >> $logfile 2>&1
605 }
606
607 check_cc(){
608     log check_cc "$@"
609     cat > $TMPC
610     log_file $TMPC
611     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
612 }
613
614 check_cpp(){
615     log check_cpp "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
619 }
620
621 check_as(){
622     log check_as "$@"
623     cat > $TMPC
624     log_file $TMPC
625     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
626 }
627
628 check_asm(){
629     log check_asm "$@"
630     name="$1"
631     code="$2"
632     shift 2
633     disable $name
634     check_as "$@" <<EOF && enable $name
635 void foo(void){ __asm__ volatile($code); }
636 EOF
637 }
638
639 check_yasm(){
640     log check_yasm "$@"
641     echo "$1" > $TMPS
642     log_file $TMPS
643     shift 1
644     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
645 }
646
647 check_ld(){
648     log check_ld "$@"
649     flags=''
650     libs=''
651     for f; do
652         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
653     done
654     check_cc $($filter_cflags $flags) || return
655     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
656 }
657
658 check_cppflags(){
659     log check_cppflags "$@"
660     set -- $($filter_cppflags "$@")
661     check_cc "$@" <<EOF && append CPPFLAGS "$@"
662 int x;
663 EOF
664 }
665
666 check_cflags(){
667     log check_cflags "$@"
668     set -- $($filter_cflags "$@")
669     check_cc "$@" <<EOF && append CFLAGS "$@"
670 int x;
671 EOF
672 }
673
674 test_ldflags(){
675     log test_ldflags "$@"
676     check_ld "$@" <<EOF
677 int main(void){ return 0; }
678 EOF
679 }
680
681 check_ldflags(){
682     log check_ldflags "$@"
683     test_ldflags "$@" && add_ldflags "$@"
684 }
685
686 check_header(){
687     log check_header "$@"
688     header=$1
689     shift
690     disable_safe $header
691     check_cpp "$@" <<EOF && enable_safe $header
692 #include <$header>
693 int x;
694 EOF
695 }
696
697 check_func(){
698     log check_func "$@"
699     func=$1
700     shift
701     disable $func
702     check_ld "$@" <<EOF && enable $func
703 extern int $func();
704 int main(void){ $func(); }
705 EOF
706 }
707
708 check_mathfunc(){
709     log check_mathfunc "$@"
710     func=$1
711     shift
712     disable $func
713     check_ld "$@" <<EOF && enable $func
714 #include <math.h>
715 float foo(float f) { return $func(f); }
716 int main(void){ return 0; }
717 EOF
718 }
719
720 check_func_headers(){
721     log check_func_headers "$@"
722     headers=$1
723     funcs=$2
724     shift 2
725     {
726         for hdr in $headers; do
727             echo "#include <$hdr>"
728         done
729         for func in $funcs; do
730             echo "long check_$func(void) { return (long) $func; }"
731         done
732         echo "int main(void) { return 0; }"
733     } | check_ld "$@" && enable $funcs && enable_safe $headers
734 }
735
736 check_cpp_condition(){
737     log check_cpp_condition "$@"
738     header=$1
739     condition=$2
740     shift 2
741     check_cpp $($filter_cppflags "$@") <<EOF
742 #include <$header>
743 #if !($condition)
744 #error "unsatisfied condition: $condition"
745 #endif
746 EOF
747 }
748
749 check_lib(){
750     log check_lib "$@"
751     header="$1"
752     func="$2"
753     shift 2
754     check_header $header && check_func $func "$@" && add_extralibs "$@"
755 }
756
757 check_lib2(){
758     log check_lib2 "$@"
759     headers="$1"
760     funcs="$2"
761     shift 2
762     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
763 }
764
765 check_pkg_config(){
766     log check_pkg_config "$@"
767     pkg="$1"
768     headers="$2"
769     funcs="$3"
770     shift 3
771     $pkg_config --exists $pkg || return
772     pkg_cflags=$($pkg_config --cflags $pkg)
773     pkg_libs=$($pkg_config --libs $pkg)
774     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
775         set_safe ${pkg}_cflags $pkg_cflags   &&
776         set_safe ${pkg}_libs   $pkg_libs
777 }
778
779 check_exec(){
780     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
781 }
782
783 check_exec_crash(){
784     code=$(cat)
785
786     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
787     # are safe but may not be available everywhere.  Thus we use
788     # raise(SIGTERM) instead.  The check is run in a subshell so we
789     # can redirect the "Terminated" message from the shell.  SIGBUS
790     # is not defined by standard C so it is used conditionally.
791
792     (check_exec "$@") >> $logfile 2>&1 <<EOF
793 #include <signal.h>
794 static void sighandler(int sig){
795     raise(SIGTERM);
796 }
797 int main(void){
798     signal(SIGILL, sighandler);
799     signal(SIGFPE, sighandler);
800     signal(SIGSEGV, sighandler);
801 #ifdef SIGBUS
802     signal(SIGBUS, sighandler);
803 #endif
804     { $code }
805 }
806 EOF
807 }
808
809 check_type(){
810     log check_type "$@"
811     headers=$1
812     type=$2
813     shift 2
814     disable_safe "$type"
815     incs=""
816     for hdr in $headers; do
817         incs="$incs
818 #include <$hdr>"
819     done
820     check_cc "$@" <<EOF && enable_safe "$type"
821 $incs
822 $type v;
823 EOF
824 }
825
826 check_struct(){
827     log check_type "$@"
828     headers=$1
829     struct=$2
830     member=$3
831     shift 3
832     disable_safe "${struct}_${member}"
833     incs=""
834     for hdr in $headers; do
835         incs="$incs
836 #include <$hdr>"
837     done
838     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
839 $incs
840 const void *p = &(($struct *)0)->$member;
841 EOF
842 }
843
844 require(){
845     name="$1"
846     header="$2"
847     func="$3"
848     shift 3
849     check_lib $header $func "$@" || die "ERROR: $name not found"
850 }
851
852 require2(){
853     name="$1"
854     headers="$2"
855     func="$3"
856     shift 3
857     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
858 }
859
860 require_pkg_config(){
861     pkg="$1"
862     check_pkg_config "$@" || die "ERROR: $pkg not found"
863     add_cflags    $(get_safe ${pkg}_cflags)
864     add_extralibs $(get_safe ${pkg}_libs)
865 }
866
867 check_host_cc(){
868     log check_host_cc "$@"
869     cat > $TMPC
870     log_file $TMPC
871     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
872 }
873
874 check_host_cflags(){
875     log check_host_cflags "$@"
876     check_host_cc "$@" <<EOF && append host_cflags "$@"
877 int x;
878 EOF
879 }
880
881 apply(){
882     file=$1
883     shift
884     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
885 }
886
887 cp_if_changed(){
888     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
889     mkdir -p "$(dirname $2)"
890     cp -f "$1" "$2"
891 }
892
893 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
894 # system-dependent things.
895
896 COMPONENT_LIST="
897     bsfs
898     decoders
899     demuxers
900     encoders
901     filters
902     hwaccels
903     indevs
904     muxers
905     outdevs
906     parsers
907     protocols
908 "
909
910 PROGRAM_LIST="
911     avconv
912     avplay
913     avprobe
914     avserver
915 "
916
917 CONFIG_LIST="
918     $COMPONENT_LIST
919     $PROGRAM_LIST
920     aandct
921     ac3dsp
922     avcodec
923     avdevice
924     avfilter
925     avformat
926     avisynth
927     bzlib
928     dct
929     doc
930     dwt
931     dxva2
932     fastdiv
933     fft
934     frei0r
935     gnutls
936     golomb
937     gpl
938     gray
939     h264chroma
940     h264dsp
941     h264pred
942     hardcoded_tables
943     huffman
944     libcdio
945     libdc1394
946     libdirac
947     libfaac
948     libfreetype
949     libgsm
950     libmp3lame
951     libnut
952     libopencore_amrnb
953     libopencore_amrwb
954     libopencv
955     libopenjpeg
956     libpulse
957     librtmp
958     libschroedinger
959     libspeex
960     libtheora
961     libvo_aacenc
962     libvo_amrwbenc
963     libvorbis
964     libvpx
965     libx264
966     libxavs
967     libxvid
968     lpc
969     lsp
970     mdct
971     memalign_hack
972     mpegaudiodsp
973     network
974     nonfree
975     openssl
976     pic
977     postproc
978     rdft
979     rtpdec
980     runtime_cpudetect
981     safe_bitstream_reader
982     shared
983     sinewin
984     small
985     sram
986     static
987     swscale
988     swscale_alpha
989     thumb
990     vaapi
991     vda
992     vdpau
993     version3
994     xmm_clobber_test
995     x11grab
996     zlib
997 "
998
999 THREADS_LIST='
1000     pthreads
1001     w32threads
1002 '
1003
1004 ARCH_LIST='
1005     alpha
1006     arm
1007     avr32
1008     avr32_ap
1009     avr32_uc
1010     bfin
1011     ia64
1012     m68k
1013     mips
1014     mips64
1015     parisc
1016     ppc
1017     ppc64
1018     s390
1019     sh4
1020     sparc
1021     sparc64
1022     tomi
1023     x86
1024     x86_32
1025     x86_64
1026 '
1027
1028 ARCH_EXT_LIST='
1029     altivec
1030     amd3dnow
1031     amd3dnowext
1032     armv5te
1033     armv6
1034     armv6t2
1035     armvfp
1036     avx
1037     iwmmxt
1038     mmi
1039     mmx
1040     mmx2
1041     neon
1042     ppc4xx
1043     sse
1044     ssse3
1045     vfpv3
1046     vis
1047 '
1048
1049 HAVE_LIST_PUB='
1050     bigendian
1051     fast_unaligned
1052 '
1053
1054 HAVE_LIST="
1055     $ARCH_EXT_LIST
1056     $HAVE_LIST_PUB
1057     $THREADS_LIST
1058     aligned_stack
1059     alsa_asoundlib_h
1060     altivec_h
1061     arpa_inet_h
1062     asm_mod_y
1063     attribute_may_alias
1064     attribute_packed
1065     closesocket
1066     cmov
1067     dcbzl
1068     dev_bktr_ioctl_bt848_h
1069     dev_bktr_ioctl_meteor_h
1070     dev_ic_bt8xx_h
1071     dev_video_bktr_ioctl_bt848_h
1072     dev_video_meteor_ioctl_meteor_h
1073     dlfcn_h
1074     dlopen
1075     dos_paths
1076     ebp_available
1077     ebx_available
1078     exp2
1079     exp2f
1080     fast_64bit
1081     fast_clz
1082     fast_cmov
1083     fcntl
1084     fork
1085     getaddrinfo
1086     gethrtime
1087     GetProcessAffinityMask
1088     GetProcessMemoryInfo
1089     GetProcessTimes
1090     getrusage
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     isatty
1096     ldbrx
1097     libdc1394_1
1098     libdc1394_2
1099     llrint
1100     llrintf
1101     local_aligned_16
1102     local_aligned_8
1103     localtime_r
1104     log2
1105     log2f
1106     loongson
1107     lrint
1108     lrintf
1109     lzo1x_999_compress
1110     machine_ioctl_bt848_h
1111     machine_ioctl_meteor_h
1112     malloc_h
1113     MapViewOfFile
1114     memalign
1115     mkstemp
1116     mmap
1117     poll_h
1118     posix_memalign
1119     round
1120     roundf
1121     sched_getaffinity
1122     sdl
1123     sdl_video_size
1124     setmode
1125     setrlimit
1126     sndio_h
1127     socklen_t
1128     soundcard_h
1129     strerror_r
1130     strptime
1131     strtok_r
1132     struct_addrinfo
1133     struct_ipv6_mreq
1134     struct_rusage_ru_maxrss
1135     struct_sockaddr_in6
1136     struct_sockaddr_sa_len
1137     struct_sockaddr_storage
1138     struct_v4l2_frmivalenum_discrete
1139     symver
1140     symver_asm_label
1141     symver_gnu_asm
1142     sysconf
1143     sysctl
1144     sys_mman_h
1145     sys_param_h
1146     sys_resource_h
1147     sys_select_h
1148     sys_soundcard_h
1149     sys_videoio_h
1150     threads
1151     trunc
1152     truncf
1153     vfp_args
1154     VirtualAlloc
1155     winsock2_h
1156     xform_asm
1157     xmm_clobbers
1158     yasm
1159 "
1160
1161 # options emitted with CONFIG_ prefix but not available on command line
1162 CONFIG_EXTRA="
1163     avutil
1164     gplv3
1165     lgplv3
1166 "
1167
1168 CMDLINE_SELECT="
1169     $ARCH_EXT_LIST
1170     $CONFIG_LIST
1171     $THREADS_LIST
1172     asm
1173     cross_compile
1174     debug
1175     extra_warnings
1176     logging
1177     optimizations
1178     symver
1179     yasm
1180 "
1181
1182 PATHS_LIST='
1183     bindir
1184     datadir
1185     incdir
1186     libdir
1187     mandir
1188     prefix
1189     shlibdir
1190 '
1191
1192 CMDLINE_SET="
1193     $PATHS_LIST
1194     ar
1195     arch
1196     as
1197     build_suffix
1198     cc
1199     cpu
1200     cross_prefix
1201     dep_cc
1202     extra_version
1203     host_cc
1204     host_cflags
1205     host_ldflags
1206     host_libs
1207     host_os
1208     ld
1209     logfile
1210     malloc_prefix
1211     nm
1212     optflags
1213     pkg_config
1214     samples
1215     sysinclude
1216     sysroot
1217     target_exec
1218     target_os
1219     target_path
1220 "
1221
1222 CMDLINE_APPEND="
1223     extra_cflags
1224 "
1225
1226 # code dependency declarations
1227
1228 # architecture extensions
1229
1230 armv5te_deps="arm"
1231 armv6_deps="arm"
1232 armv6t2_deps="arm"
1233 armvfp_deps="arm"
1234 iwmmxt_deps="arm"
1235 neon_deps="arm"
1236 vfpv3_deps="armvfp"
1237
1238 mmi_deps="mips"
1239
1240 altivec_deps="ppc"
1241 ppc4xx_deps="ppc"
1242
1243 vis_deps="sparc"
1244
1245 x86_64_suggest="cmov fast_cmov"
1246 amd3dnow_deps="mmx"
1247 amd3dnowext_deps="amd3dnow"
1248 mmx_deps="x86"
1249 mmx2_deps="mmx"
1250 sse_deps="mmx"
1251 ssse3_deps="sse"
1252 avx_deps="ssse3"
1253
1254 aligned_stack_if_any="ppc x86"
1255 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1256 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1257 fast_unaligned_if_any="armv6 ppc x86"
1258
1259 inline_asm_deps="!tms470"
1260 need_memalign="altivec neon sse"
1261
1262 symver_if_any="symver_asm_label symver_gnu_asm"
1263
1264 # subsystems
1265 dct_select="rdft"
1266 mdct_select="fft"
1267 rdft_select="fft"
1268 mpegaudiodsp_select="dct"
1269
1270 # decoders / encoders / hardware accelerators
1271 aac_decoder_select="mdct sinewin"
1272 aac_encoder_select="mdct sinewin"
1273 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1274 ac3_decoder_select="mdct ac3dsp ac3_parser"
1275 ac3_encoder_select="mdct ac3dsp"
1276 ac3_fixed_encoder_select="mdct ac3dsp"
1277 alac_encoder_select="lpc"
1278 amrnb_decoder_select="lsp"
1279 amrwb_decoder_select="lsp"
1280 atrac1_decoder_select="mdct sinewin"
1281 atrac3_decoder_select="mdct"
1282 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1283 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1284 cavs_decoder_select="golomb"
1285 cook_decoder_select="mdct sinewin"
1286 cscd_decoder_suggest="zlib"
1287 dca_decoder_select="mdct"
1288 dnxhd_encoder_select="aandct"
1289 dxa_decoder_select="zlib"
1290 eac3_decoder_select="ac3_decoder"
1291 eac3_encoder_select="mdct ac3dsp"
1292 eamad_decoder_select="aandct"
1293 eatgq_decoder_select="aandct"
1294 eatqi_decoder_select="aandct"
1295 ffv1_decoder_select="golomb"
1296 flac_decoder_select="golomb"
1297 flac_encoder_select="golomb lpc"
1298 flashsv_decoder_select="zlib"
1299 flashsv_encoder_select="zlib"
1300 flashsv2_decoder_select="zlib"
1301 flv_decoder_select="h263_decoder"
1302 flv_encoder_select="h263_encoder"
1303 fraps_decoder_select="huffman"
1304 h261_encoder_select="aandct"
1305 h263_decoder_select="h263_parser"
1306 h263_encoder_select="aandct"
1307 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1308 h263i_decoder_select="h263_decoder"
1309 h263p_encoder_select="h263_encoder"
1310 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1311 h264_dxva2_hwaccel_deps="dxva2api_h"
1312 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1313 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1314 h264_vda_hwaccel_select="vda h264_decoder"
1315 h264_vdpau_decoder_select="vdpau h264_decoder"
1316 imc_decoder_select="fft mdct sinewin"
1317 jpegls_decoder_select="golomb"
1318 jpegls_encoder_select="golomb"
1319 ljpeg_encoder_select="aandct"
1320 loco_decoder_select="golomb"
1321 mjpeg_encoder_select="aandct"
1322 mlp_decoder_select="mlp_parser"
1323 mp1_decoder_select="mpegaudiodsp"
1324 mp1float_decoder_select="mpegaudiodsp"
1325 mp2_decoder_select="mpegaudiodsp"
1326 mp2float_decoder_select="mpegaudiodsp"
1327 mp3_decoder_select="mpegaudiodsp"
1328 mp3adu_decoder_select="mpegaudiodsp"
1329 mp3adufloat_decoder_select="mpegaudiodsp"
1330 mp3float_decoder_select="mpegaudiodsp"
1331 mp3on4_decoder_select="mpegaudiodsp"
1332 mp3on4float_decoder_select="mpegaudiodsp"
1333 mpc7_decoder_select="mpegaudiodsp"
1334 mpc8_decoder_select="mpegaudiodsp"
1335 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1336 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1337 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1338 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1339 mpeg1video_encoder_select="aandct"
1340 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1341 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1342 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1343 mpeg2video_encoder_select="aandct"
1344 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1345 mpeg4_encoder_select="h263_encoder"
1346 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1347 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1348 msmpeg4v1_decoder_select="h263_decoder"
1349 msmpeg4v1_encoder_select="h263_encoder"
1350 msmpeg4v2_decoder_select="h263_decoder"
1351 msmpeg4v2_encoder_select="h263_encoder"
1352 msmpeg4v3_decoder_select="h263_decoder"
1353 msmpeg4v3_encoder_select="h263_encoder"
1354 nellymoser_decoder_select="mdct sinewin"
1355 nellymoser_encoder_select="mdct sinewin"
1356 png_decoder_select="zlib"
1357 png_encoder_select="zlib"
1358 qcelp_decoder_select="lsp"
1359 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1360 ra_144_encoder_select="lpc"
1361 rv10_decoder_select="h263_decoder"
1362 rv10_encoder_select="h263_encoder"
1363 rv20_decoder_select="h263_decoder"
1364 rv20_encoder_select="h263_encoder"
1365 rv30_decoder_select="golomb h264chroma h264pred"
1366 rv40_decoder_select="golomb h264chroma h264pred"
1367 shorten_decoder_select="golomb"
1368 sipr_decoder_select="lsp"
1369 snow_decoder_select="dwt"
1370 snow_encoder_select="aandct dwt"
1371 svq1_encoder_select="aandct"
1372 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1373 svq3_decoder_suggest="zlib"
1374 theora_decoder_select="vp3_decoder"
1375 tiff_decoder_suggest="zlib"
1376 tiff_encoder_suggest="zlib"
1377 truehd_decoder_select="mlp_decoder"
1378 tscc_decoder_select="zlib"
1379 twinvq_decoder_select="mdct lsp sinewin"
1380 vc1_decoder_select="h263_decoder h264chroma"
1381 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1382 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1383 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1384 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1385 vc1image_decoder_select="vc1_decoder"
1386 vorbis_decoder_select="mdct"
1387 vorbis_encoder_select="mdct"
1388 vp6_decoder_select="huffman"
1389 vp6a_decoder_select="vp6_decoder"
1390 vp6f_decoder_select="vp6_decoder"
1391 vp8_decoder_select="h264pred"
1392 wmapro_decoder_select="mdct sinewin"
1393 wmav1_decoder_select="mdct sinewin"
1394 wmav1_encoder_select="mdct sinewin"
1395 wmav2_decoder_select="mdct sinewin"
1396 wmav2_encoder_select="mdct sinewin"
1397 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1398 wmv1_decoder_select="h263_decoder"
1399 wmv1_encoder_select="h263_encoder"
1400 wmv2_decoder_select="h263_decoder"
1401 wmv2_encoder_select="h263_encoder"
1402 wmv3_decoder_select="vc1_decoder"
1403 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1404 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1405 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1406 wmv3image_decoder_select="wmv3_decoder"
1407 zlib_decoder_select="zlib"
1408 zlib_encoder_select="zlib"
1409 zmbv_decoder_select="zlib"
1410 zmbv_encoder_select="zlib"
1411
1412 vaapi_deps="va_va_h"
1413 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1414 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1415
1416 # parsers
1417 h264_parser_select="golomb h264chroma h264dsp h264pred"
1418
1419 # external libraries
1420 libdirac_decoder_deps="libdirac !libschroedinger"
1421 libdirac_encoder_deps="libdirac"
1422 libfaac_encoder_deps="libfaac"
1423 libgsm_decoder_deps="libgsm"
1424 libgsm_encoder_deps="libgsm"
1425 libgsm_ms_decoder_deps="libgsm"
1426 libgsm_ms_encoder_deps="libgsm"
1427 libmp3lame_encoder_deps="libmp3lame"
1428 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1429 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1430 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1431 libopenjpeg_decoder_deps="libopenjpeg"
1432 libschroedinger_decoder_deps="libschroedinger"
1433 libschroedinger_encoder_deps="libschroedinger"
1434 libspeex_decoder_deps="libspeex"
1435 libspeex_encoder_deps="libspeex"
1436 libtheora_encoder_deps="libtheora"
1437 libvo_aacenc_encoder_deps="libvo_aacenc"
1438 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1439 libvorbis_encoder_deps="libvorbis"
1440 libvpx_decoder_deps="libvpx"
1441 libvpx_encoder_deps="libvpx"
1442 libx264_encoder_deps="libx264"
1443 libxavs_encoder_deps="libxavs"
1444 libxvid_encoder_deps="libxvid"
1445
1446 # demuxers / muxers
1447 ac3_demuxer_select="ac3_parser"
1448 asf_stream_muxer_select="asf_muxer"
1449 avisynth_demuxer_deps="avisynth"
1450 dirac_demuxer_select="dirac_parser"
1451 eac3_demuxer_select="ac3_parser"
1452 flac_demuxer_select="flac_parser"
1453 ipod_muxer_select="mov_muxer"
1454 libnut_demuxer_deps="libnut"
1455 libnut_muxer_deps="libnut"
1456 matroska_audio_muxer_select="matroska_muxer"
1457 matroska_demuxer_suggest="zlib bzlib"
1458 mov_demuxer_suggest="zlib"
1459 mp3_demuxer_select="mpegaudio_parser"
1460 mp4_muxer_select="mov_muxer"
1461 mpegtsraw_demuxer_select="mpegts_demuxer"
1462 mxf_d10_muxer_select="mxf_muxer"
1463 ogg_demuxer_select="golomb"
1464 psp_muxer_select="mov_muxer"
1465 rtp_demuxer_select="sdp_demuxer"
1466 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1467 rtsp_demuxer_select="http_protocol rtpdec"
1468 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1469 sap_demuxer_select="sdp_demuxer"
1470 sap_muxer_select="rtp_muxer rtp_protocol"
1471 sdp_demuxer_select="rtpdec"
1472 spdif_muxer_select="aac_parser"
1473 tg2_muxer_select="mov_muxer"
1474 tgp_muxer_select="mov_muxer"
1475 w64_demuxer_deps="wav_demuxer"
1476
1477 # indevs / outdevs
1478 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1479 alsa_outdev_deps="alsa_asoundlib_h"
1480 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1481 dv1394_indev_deps="dv1394 dv_demuxer"
1482 fbdev_indev_deps="linux_fb_h"
1483 jack_indev_deps="jack_jack_h"
1484 libcdio_indev_deps="libcdio"
1485 libdc1394_indev_deps="libdc1394"
1486 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1487 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1488 pulse_indev_deps="libpulse"
1489 sndio_indev_deps="sndio_h"
1490 sndio_outdev_deps="sndio_h"
1491 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1492 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1493 vfwcap_indev_extralibs="-lavicap32"
1494 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1495 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1496
1497 # protocols
1498 gopher_protocol_deps="network"
1499 httpproxy_protocol_deps="network"
1500 httpproxy_protocol_select="tcp_protocol"
1501 http_protocol_deps="network"
1502 http_protocol_select="tcp_protocol"
1503 https_protocol_select="tls_protocol"
1504 mmsh_protocol_select="http_protocol"
1505 mmst_protocol_deps="network"
1506 rtmp_protocol_select="tcp_protocol"
1507 rtp_protocol_select="udp_protocol"
1508 tcp_protocol_deps="network"
1509 tls_protocol_deps_any="openssl gnutls"
1510 tls_protocol_select="tcp_protocol"
1511 udp_protocol_deps="network"
1512
1513 # filters
1514 blackframe_filter_deps="gpl"
1515 boxblur_filter_deps="gpl"
1516 cropdetect_filter_deps="gpl"
1517 delogo_filter_deps="gpl"
1518 drawtext_filter_deps="libfreetype"
1519 frei0r_filter_deps="frei0r dlopen strtok_r"
1520 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1521 hqdn3d_filter_deps="gpl"
1522 ocv_filter_deps="libopencv"
1523 scale_filter_deps="swscale"
1524 yadif_filter_deps="gpl"
1525
1526 # libraries
1527 avdevice_deps="avcodec avformat"
1528 avformat_deps="avcodec"
1529 postproc_deps="gpl"
1530
1531 # programs
1532 avconv_deps="avcodec avformat swscale"
1533 avplay_deps="avcodec avformat swscale sdl"
1534 avplay_select="rdft"
1535 avprobe_deps="avcodec avformat"
1536 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1537 avserver_extralibs='$ldl'
1538
1539 doc_deps="texi2html"
1540
1541 # tests
1542
1543 test_deps(){
1544     suf1=$1
1545     suf2=$2
1546     shift 2
1547     for v; do
1548         dep=${v%=*}
1549         tests=${v#*=}
1550         for name in ${tests}; do
1551             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1552         done
1553     done
1554 }
1555
1556 mxf_d10_test_deps="avfilter"
1557 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1558
1559 test_deps _encoder _decoder                                             \
1560     adpcm_ima_qt                                                        \
1561     adpcm_ima_wav                                                       \
1562     adpcm_ms                                                            \
1563     adpcm_swf                                                           \
1564     adpcm_yamaha=adpcm_yam                                              \
1565     alac                                                                \
1566     asv1                                                                \
1567     asv2                                                                \
1568     bmp                                                                 \
1569     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1570     dvvideo="dv dv_411 dv50"                                            \
1571     ffv1                                                                \
1572     flac                                                                \
1573     flashsv                                                             \
1574     flv                                                                 \
1575     adpcm_g726=g726                                                     \
1576     gif                                                                 \
1577     h261                                                                \
1578     h263="h263 h263p"                                                   \
1579     huffyuv                                                             \
1580     jpegls                                                              \
1581     mjpeg="jpg mjpeg ljpeg"                                             \
1582     mp2                                                                 \
1583     mpeg1video="mpeg mpeg1b"                                            \
1584     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1585     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1586     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1587     mpeg4="mpeg4thread error rc"                                        \
1588     msmpeg4v3=msmpeg4                                                   \
1589     msmpeg4v2                                                           \
1590     pbm=pbmpipe                                                         \
1591     pcx                                                                 \
1592     pgm="pgm pgmpipe"                                                   \
1593     png                                                                 \
1594     ppm="ppm ppmpipe"                                                   \
1595     rawvideo="rgb yuv"                                                  \
1596     roq                                                                 \
1597     rv10                                                                \
1598     rv20                                                                \
1599     sgi                                                                 \
1600     snow="snow snowll"                                                  \
1601     svq1                                                                \
1602     targa=tga                                                           \
1603     tiff                                                                \
1604     wmav1                                                               \
1605     wmav2                                                               \
1606     wmv1                                                                \
1607     wmv2                                                                \
1608
1609 test_deps _muxer _demuxer                                               \
1610     aiff                                                                \
1611     pcm_alaw=alaw                                                       \
1612     asf                                                                 \
1613     au                                                                  \
1614     avi                                                                 \
1615     dv=dv_fmt                                                           \
1616     ffm                                                                 \
1617     flv=flv_fmt                                                         \
1618     gxf                                                                 \
1619     matroska=mkv                                                        \
1620     mmf                                                                 \
1621     mov                                                                 \
1622     pcm_mulaw=mulaw                                                     \
1623     mxf="mxf mxf_d10"                                                   \
1624     nut                                                                 \
1625     ogg                                                                 \
1626     rawvideo=pixfmt                                                     \
1627     rm                                                                  \
1628     swf                                                                 \
1629     mpegts=ts                                                           \
1630     voc                                                                 \
1631     wav                                                                 \
1632     yuv4mpegpipe=yuv4mpeg                                               \
1633
1634 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1635 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1636
1637 # default parameters
1638
1639 logfile="config.log"
1640
1641 # installation paths
1642 prefix_default="/usr/local"
1643 bindir_default='${prefix}/bin'
1644 datadir_default='${prefix}/share/avconv'
1645 incdir_default='${prefix}/include'
1646 libdir_default='${prefix}/lib'
1647 mandir_default='${prefix}/share/man'
1648 shlibdir_default="$libdir_default"
1649
1650 # toolchain
1651 ar_default="ar"
1652 cc_default="gcc"
1653 cc_version=\"unknown\"
1654 host_cc_default="gcc"
1655 ln_s="ln -sf"
1656 nm_default="nm"
1657 objformat="elf"
1658 pkg_config_default=pkg-config
1659 ranlib="ranlib"
1660 yasmexe="yasm"
1661
1662 nm_opts='-g'
1663 nogas=":"
1664
1665 # machine
1666 arch_default=$(uname -m)
1667 cpu="generic"
1668
1669 # OS
1670 target_os_default=$(tolower $(uname -s))
1671 host_os=$target_os_default
1672
1673 # configurable options
1674 enable $PROGRAM_LIST
1675
1676 enable avcodec
1677 enable avdevice
1678 enable avfilter
1679 enable avformat
1680 enable avutil
1681 enable swscale
1682
1683 enable asm
1684 enable debug
1685 enable doc
1686 enable fastdiv
1687 enable network
1688 enable optimizations
1689 enable safe_bitstream_reader
1690 enable static
1691 enable swscale_alpha
1692
1693 # build settings
1694 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1695 AVSERVERLDFLAGS=-Wl,-E
1696 LIBPREF="lib"
1697 LIBSUF=".a"
1698 FULLNAME='$(NAME)$(BUILDSUF)'
1699 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1700 SLIBPREF="lib"
1701 SLIBSUF=".so"
1702 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1703 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1704 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1705 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1706 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1707 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1708
1709 AS_O='-o $@'
1710 CC_O='-o $@'
1711
1712 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1713 host_libs='-lm'
1714
1715 target_path='$(CURDIR)'
1716
1717 # since the object filename is not given with the -MM flag, the compiler
1718 # is only able to print the basename, and we must add the path ourselves
1719 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1720 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1721
1722 # find source path
1723 if test -f configure; then
1724     source_path=.
1725 else
1726     source_path=$(cd $(dirname "$0"); pwd)
1727     echo "$source_path" | grep -q '[[:blank:]]' &&
1728         die "Out of tree builds are impossible with whitespace in source path."
1729     test -e "$source_path/config.h" &&
1730         die "Out of tree builds are impossible with config.h in source dir."
1731 fi
1732
1733 for v in "$@"; do
1734     r=${v#*=}
1735     l=${v%"$r"}
1736     r=$(sh_quote "$r")
1737     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1738 done
1739
1740 find_things(){
1741     thing=$1
1742     pattern=$2
1743     file=$source_path/$3
1744     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1745 }
1746
1747 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1748 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1749 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1750 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1751 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1752 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1753 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1754 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1755 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1756 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1757 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1758
1759 ALL_COMPONENTS="
1760     $BSF_LIST
1761     $DECODER_LIST
1762     $DEMUXER_LIST
1763     $ENCODER_LIST
1764     $FILTER_LIST
1765     $HWACCEL_LIST
1766     $INDEV_LIST
1767     $MUXER_LIST
1768     $OUTDEV_LIST
1769     $PARSER_LIST
1770     $PROTOCOL_LIST
1771 "
1772
1773 find_tests(){
1774     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1775 }
1776
1777 ACODEC_TESTS=$(find_tests acodec)
1778 VCODEC_TESTS=$(find_tests vsynth1)
1779 LAVF_TESTS=$(find_tests lavf)
1780 LAVFI_TESTS=$(find_tests lavfi)
1781 SEEK_TESTS=$(find_tests seek seek_)
1782
1783 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1784
1785 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1786
1787 for n in $COMPONENT_LIST; do
1788     v=$(toupper ${n%s})_LIST
1789     eval enable \$$v
1790     eval ${n}_if_any="\$$v"
1791 done
1792
1793 enable $ARCH_EXT_LIST $ALL_TESTS
1794
1795 die_unknown(){
1796     echo "Unknown option \"$1\"."
1797     echo "See $0 --help for available options."
1798     exit 1
1799 }
1800
1801 show_list() {
1802     suffix=_$1
1803     shift
1804     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1805     exit 0
1806 }
1807
1808 for opt do
1809     optval="${opt#*=}"
1810     case "$opt" in
1811     --extra-ldflags=*) add_ldflags $optval
1812     ;;
1813     --extra-libs=*) add_extralibs $optval
1814     ;;
1815     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1816     ;;
1817     --enable-debug=*) debuglevel="$optval"
1818     ;;
1819     --disable-everything)
1820     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1821     ;;
1822     --enable-*=*|--disable-*=*)
1823     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1824     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1825     eval list=\$$(toupper $thing)_LIST
1826     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1827     $action $(filter "$name" $list)
1828     ;;
1829     --enable-?*|--disable-?*)
1830     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1831     if is_in $option $COMPONENT_LIST; then
1832         test $action = disable && action=unset
1833         eval $action \$$(toupper ${option%s})_LIST
1834     elif is_in $option $CMDLINE_SELECT; then
1835         $action $option
1836     else
1837         die_unknown $opt
1838     fi
1839     ;;
1840     --list-*)
1841         NAME="${opt#--list-}"
1842         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1843         NAME=${NAME%s}
1844         eval show_list $NAME \$$(toupper $NAME)_LIST
1845     ;;
1846     --help|-h) show_help
1847     ;;
1848     *)
1849     optname="${opt%%=*}"
1850     optname="${optname#--}"
1851     optname=$(echo "$optname" | sed 's/-/_/g')
1852     if is_in $optname $CMDLINE_SET; then
1853         eval $optname='$optval'
1854     elif is_in $optname $CMDLINE_APPEND; then
1855         append $optname "$optval"
1856     else
1857          die_unknown $opt
1858     fi
1859     ;;
1860     esac
1861 done
1862
1863 disabled logging && logfile=/dev/null
1864
1865 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1866 set >> $logfile
1867
1868 test -n "$cross_prefix" && enable cross_compile
1869
1870 if enabled cross_compile; then
1871     test -n "$arch" && test -n "$target_os" ||
1872         die "Must specify target arch and OS when cross-compiling"
1873 fi
1874
1875 set_default arch target_os
1876
1877 ar_default="${cross_prefix}${ar_default}"
1878 cc_default="${cross_prefix}${cc_default}"
1879 nm_default="${cross_prefix}${nm_default}"
1880 pkg_config_default="${cross_prefix}${pkg_config_default}"
1881 ranlib="${cross_prefix}${ranlib}"
1882
1883 sysinclude_default="${sysroot}/usr/include"
1884
1885 set_default cc nm pkg_config sysinclude
1886 enabled cross_compile || host_cc_default=$cc
1887 set_default host_cc
1888
1889 if ! $pkg_config --version >/dev/null 2>&1; then
1890     warn "$pkg_config not found, library detection may fail."
1891     pkg_config=false
1892 fi
1893
1894 exesuf() {
1895     case $1 in
1896         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1897     esac
1898 }
1899
1900 EXESUF=$(exesuf $target_os)
1901 HOSTEXESUF=$(exesuf $host_os)
1902
1903 # set temporary file name
1904 : ${TMPDIR:=$TEMPDIR}
1905 : ${TMPDIR:=$TMP}
1906 : ${TMPDIR:=/tmp}
1907
1908 if ! check_cmd mktemp -u XXXXXX; then
1909     # simple replacement for missing mktemp
1910     # NOT SAFE FOR GENERAL USE
1911     mktemp(){
1912         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1913     }
1914 fi
1915
1916 tmpfile(){
1917     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1918         (set -C; exec > $tmp) 2>/dev/null ||
1919         die "Unable to create temporary file in $TMPDIR."
1920     append TMPFILES $tmp
1921     eval $1=$tmp
1922 }
1923
1924 trap 'rm -f -- $TMPFILES' EXIT
1925
1926 tmpfile TMPASM .asm
1927 tmpfile TMPC   .c
1928 tmpfile TMPE   $EXESUF
1929 tmpfile TMPH   .h
1930 tmpfile TMPO   .o
1931 tmpfile TMPS   .S
1932 tmpfile TMPSH  .sh
1933 tmpfile TMPV   .ver
1934
1935 unset -f mktemp
1936
1937 chmod +x $TMPE
1938
1939 # make sure we can execute files in $TMPDIR
1940 cat > $TMPSH 2>> $logfile <<EOF
1941 #! /bin/sh
1942 EOF
1943 chmod +x $TMPSH >> $logfile 2>&1
1944 if ! $TMPSH >> $logfile 2>&1; then
1945     cat <<EOF
1946 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1947 variable to another directory and make sure that it is not mounted noexec.
1948 EOF
1949     die "Sanity test failed."
1950 fi
1951
1952 filter_asflags=echo
1953 filter_cflags=echo
1954 filter_cppflags=echo
1955
1956 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1957     cc_type=llvm_gcc
1958     cc_version=__VERSION__
1959     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1960     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1961     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1962     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963     speed_cflags='-O3'
1964     size_cflags='-Os'
1965 elif $cc -v 2>&1 | grep -qi ^gcc; then
1966     cc_type=gcc
1967     cc_version=__VERSION__
1968     gcc_version=$($cc --version | head -n1)
1969     gcc_basever=$($cc -dumpversion)
1970     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1971     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1972     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1973     if ! $cc -dumpversion | grep -q '^2\.'; then
1974         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1975         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1976     fi
1977     speed_cflags='-O3'
1978     size_cflags='-Os'
1979 elif $cc --version 2>/dev/null | grep -q Intel; then
1980     cc_type=icc
1981     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1982     cc_ident=$($cc --version | head -n1)
1983     icc_version=$($cc -dumpversion)
1984     CC_DEPFLAGS='-MMD'
1985     AS_DEPFLAGS='-MMD'
1986     speed_cflags='-O3'
1987     size_cflags='-Os'
1988     noopt_cflags='-O1'
1989 elif $cc -v 2>&1 | grep -q xlc; then
1990     cc_type=xlc
1991     cc_version="AV_STRINGIFY(__IBMC__)"
1992     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1993     speed_cflags='-O5'
1994     size_cflags='-O5 -qcompact'
1995 elif $cc -V 2>/dev/null | grep -q Compaq; then
1996     cc_type=ccc
1997     cc_version="AV_STRINGIFY(__DECC_VER)"
1998     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1999     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2000     debuglevel=3
2001     add_ldflags -Wl,-z,now # calls to libots crash without this
2002     speed_cflags='-fast'
2003     size_cflags='-O1'
2004 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2005     test -d "$sysroot" || die "No valid sysroot specified."
2006     cc_type=armcc
2007     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2008     cc_ident=$($cc --vsn | head -n1)
2009     armcc_conf="$PWD/armcc.conf"
2010     $cc --arm_linux_configure                 \
2011         --arm_linux_config_file="$armcc_conf" \
2012         --configure_sysroot="$sysroot"        \
2013         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2014         die "Error creating armcc configuration file."
2015     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2016     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2017     as_default="${cross_prefix}gcc"
2018     CC_DEPFLAGS='-MMD'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3'
2021     size_cflags='-Os'
2022     filter_asflags="filter_out -W${armcc_opt}*"
2023 elif $cc -version 2>/dev/null | grep -q TMS470; then
2024     cc_type=tms470
2025     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2026     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2027     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2028     CC_O='-fr=$(@D)'
2029     as_default="${cross_prefix}gcc"
2030     ld_default="${cross_prefix}gcc"
2031     TMPO=$(basename $TMPC .c).o
2032     append TMPFILES $TMPO
2033     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2034     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2035     AS_DEPFLAGS='-MMD'
2036     speed_cflags='-O3 -mf=5'
2037     size_cflags='-O3 -mf=2'
2038     filter_cflags=tms470_flags
2039     tms470_flags(){
2040         for flag; do
2041             case $flag in
2042                 -march=*|-mcpu=*)
2043                     case "${flag#*=}" in
2044                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2045                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2046                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2047                         armv6*|arm11*)          echo -mv=6   ;;
2048                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2049                                                 echo -mv=5e  ;;
2050                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2051                     esac
2052                     ;;
2053                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2054                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2055                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2056                 -msoft-float)   echo --float_support=vfplib       ;;
2057                 -O[0-3]|-mf=*)  echo $flag                        ;;
2058                 -g)             echo -g -mn                       ;;
2059                 -pds=*)         echo $flag                        ;;
2060             esac
2061         done
2062     }
2063 elif $cc -v 2>&1 | grep -q clang; then
2064     cc_type=clang
2065     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2066         cc_version=__clang_version__ || cc_version=__VERSION__
2067     cc_ident=$($cc --version | head -n1)
2068     CC_DEPFLAGS='-MMD'
2069     AS_DEPFLAGS='-MMD'
2070     speed_cflags='-O3'
2071     size_cflags='-Os'
2072 elif $cc -V 2>&1 | grep -q Sun; then
2073     cc_type=suncc
2074     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2075     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2076     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2077     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2078     add_ldflags -xc99
2079     speed_cflags='-O5'
2080     size_cflags='-O5 -xspace'
2081     filter_cflags=suncc_flags
2082     suncc_flags(){
2083         for flag; do
2084             case $flag in
2085                 -march=*|-mcpu=*)
2086                     case "${flag#*=}" in
2087                         native)                   echo -xtarget=native       ;;
2088                         v9|niagara)               echo -xarch=sparc          ;;
2089                         ultrasparc)               echo -xarch=sparcvis       ;;
2090                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2091                         i586|pentium)             echo -xchip=pentium        ;;
2092                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2093                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2094                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2095                         pentium4*)          echo -xtarget=pentium4           ;;
2096                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2097                         *-sse3)             echo -xarch=sse3                 ;;
2098                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2099                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2100                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2101                         k8|opteron|athlon64|athlon-fx)
2102                                                   echo -xarch=sse2a          ;;
2103                         athlon*)                  echo -xarch=pentium_proa   ;;
2104                     esac
2105                     ;;
2106                 -std=c99)             echo -xc99              ;;
2107                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2108                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2109                 -W*,*)                echo $flag              ;;
2110                 -f*-*|-W*)                                    ;;
2111                 *)                    echo $flag              ;;
2112             esac
2113         done
2114     }
2115 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2116     cc_type=pathscale
2117     cc_version=__PATHSCALE__
2118     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2119     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2120     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2121     speed_cflags='-O2'
2122     size_cflags='-Os'
2123     filter_cflags='filter_out -Wdisabled-optimization'
2124 elif $cc -v 2>&1 | grep -q Open64; then
2125     cc_type=open64
2126     cc_version=__OPEN64__
2127     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2128     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     speed_cflags='-O2'
2131     size_cflags='-Os'
2132     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2133 fi
2134
2135 test -n "$cc_type" && enable $cc_type ||
2136     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2137
2138 : ${as_default:=$cc}
2139 : ${dep_cc_default:=$cc}
2140 : ${ld_default:=$cc}
2141 set_default ar as dep_cc ld
2142
2143 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2144 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2145
2146 add_cflags $extra_cflags
2147 add_asflags $extra_cflags
2148
2149 if test -n "$sysroot"; then
2150     case "$cc_type" in
2151         gcc|llvm_gcc|clang)
2152             add_cppflags --sysroot="$sysroot"
2153             add_ldflags --sysroot="$sysroot"
2154         ;;
2155         tms470)
2156             add_cppflags -I"$sysinclude"
2157             add_ldflags  --sysroot="$sysroot"
2158         ;;
2159     esac
2160 fi
2161
2162 if test "$cpu" = host; then
2163     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2164
2165     case "$cc_type" in
2166         gcc|llvm_gcc)
2167             check_native(){
2168                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2169                 sed -n "/cc1.*$1=/{
2170                             s/.*$1=\\([^ ]*\\).*/\\1/
2171                             p
2172                             q
2173                         }" $TMPE
2174             }
2175             cpu=$(check_native -march || check_native -mcpu)
2176         ;;
2177     esac
2178
2179     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2180 fi
2181
2182 # Deal with common $arch aliases
2183 case "$arch" in
2184     arm*)
2185         arch="arm"
2186     ;;
2187     mips|mipsel|IP*)
2188         arch="mips"
2189     ;;
2190     mips64*)
2191         arch="mips"
2192         subarch="mips64"
2193     ;;
2194     parisc|hppa)
2195         arch="parisc"
2196     ;;
2197     parisc64|hppa64)
2198         arch="parisc"
2199         subarch="parisc64"
2200     ;;
2201     "Power Macintosh"|ppc|powerpc)
2202         arch="ppc"
2203     ;;
2204     ppc64|powerpc64)
2205         arch="ppc"
2206         subarch="ppc64"
2207     ;;
2208     s390|s390x)
2209         arch="s390"
2210     ;;
2211     sh4|sh)
2212         arch="sh4"
2213     ;;
2214     sun4u|sparc64)
2215         arch="sparc"
2216         subarch="sparc64"
2217     ;;
2218     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2219         arch="x86"
2220     ;;
2221 esac
2222
2223 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2224 enable $arch
2225
2226 # Add processor-specific flags
2227 if test "$cpu" = generic; then
2228     : do nothing
2229 elif enabled ppc; then
2230
2231     case $(tolower $cpu) in
2232         601|ppc601|powerpc601)
2233             cpuflags="-mcpu=601"
2234             disable altivec
2235         ;;
2236         603*|ppc603*|powerpc603*)
2237             cpuflags="-mcpu=603"
2238             disable altivec
2239         ;;
2240         604*|ppc604*|powerpc604*)
2241             cpuflags="-mcpu=604"
2242             disable altivec
2243         ;;
2244         g3|75*|ppc75*|powerpc75*)
2245             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2246             disable altivec
2247         ;;
2248         g4|745*|ppc745*|powerpc745*)
2249             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2250         ;;
2251         74*|ppc74*|powerpc74*)
2252             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2253         ;;
2254         g5|970|ppc970|powerpc970|power4*)
2255             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2256         ;;
2257         cell)
2258             cpuflags="-mcpu=cell"
2259             enable ldbrx
2260         ;;
2261         e500v2)
2262             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2263             disable altivec
2264         ;;
2265         e500)
2266             cpuflags="-mcpu=8540 -mhard-float"
2267             disable altivec
2268         ;;
2269     esac
2270
2271 elif enabled x86; then
2272
2273     case $cpu in
2274         i[345]86|pentium)
2275             cpuflags="-march=$cpu"
2276             disable mmx
2277         ;;
2278         # targets that do NOT support conditional mov (cmov)
2279         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2280             cpuflags="-march=$cpu"
2281             disable cmov
2282         ;;
2283         # targets that do support conditional mov (cmov)
2284         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2285             cpuflags="-march=$cpu"
2286             enable cmov
2287             enable fast_cmov
2288         ;;
2289         # targets that do support conditional mov but on which it's slow
2290         pentium4|pentium4m|prescott|nocona)
2291             cpuflags="-march=$cpu"
2292             enable cmov
2293             disable fast_cmov
2294         ;;
2295     esac
2296
2297 elif enabled sparc; then
2298
2299     case $cpu in
2300         niagara)
2301             cpuflags="-mcpu=$cpu"
2302             disable vis
2303         ;;
2304         sparc64)
2305             cpuflags="-mcpu=v9"
2306         ;;
2307     esac
2308
2309 elif enabled arm; then
2310
2311     case $cpu in
2312         armv*)
2313             cpuflags="-march=$cpu"
2314             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2315         ;;
2316         *)
2317             cpuflags="-mcpu=$cpu"
2318             case $cpu in
2319                 cortex-a*)                               subarch=armv7a  ;;
2320                 cortex-r*)                               subarch=armv7r  ;;
2321                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2322                 arm11*)                                  subarch=armv6   ;;
2323                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2324                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2325             esac
2326         ;;
2327     esac
2328
2329 elif enabled alpha; then
2330
2331     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2332
2333 elif enabled bfin; then
2334
2335     cpuflags="-mcpu=$cpu"
2336
2337 elif enabled mips; then
2338
2339     cpuflags="-march=$cpu"
2340
2341 elif enabled avr32; then
2342
2343     case $cpu in
2344         ap7[02]0[0-2])
2345             subarch="avr32_ap"
2346             cpuflags="-mpart=$cpu"
2347         ;;
2348         ap)
2349             subarch="avr32_ap"
2350             cpuflags="-march=$cpu"
2351         ;;
2352         uc3[ab]*)
2353             subarch="avr32_uc"
2354             cpuflags="-mcpu=$cpu"
2355         ;;
2356         uc)
2357             subarch="avr32_uc"
2358             cpuflags="-march=$cpu"
2359         ;;
2360     esac
2361
2362 fi
2363
2364 add_cflags $cpuflags
2365 add_asflags $cpuflags
2366
2367 # compiler sanity check
2368 check_exec <<EOF
2369 int main(void){ return 0; }
2370 EOF
2371 if test "$?" != 0; then
2372     echo "$cc is unable to create an executable file."
2373     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2374         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2375         echo "Only do this if you know what cross compiling means."
2376     fi
2377     die "C compiler test failed."
2378 fi
2379
2380 add_cppflags -D_ISOC99_SOURCE
2381 check_cflags -std=c99
2382 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2383 #include <stdlib.h>
2384 EOF
2385 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2386 #include <stdlib.h>
2387 EOF
2388
2389 check_host_cflags -std=c99
2390 check_host_cflags -Wall
2391
2392 case "$arch" in
2393     alpha|ia64|mips|parisc|sparc)
2394         spic=$shared
2395     ;;
2396     x86)
2397         subarch="x86_32"
2398         check_cc <<EOF && subarch="x86_64"
2399         int test[(int)sizeof(char*) - 7];
2400 EOF
2401         if test "$subarch" = "x86_64"; then
2402             spic=$shared
2403         fi
2404     ;;
2405 esac
2406
2407 enable $subarch
2408 enabled spic && enable pic
2409
2410 # OS specific
2411 case $target_os in
2412     haiku)
2413         prefix_default="/boot/common"
2414         network_extralibs="-lnetwork"
2415         host_libs=
2416         ;;
2417     sunos)
2418         AVSERVERLDFLAGS=""
2419         SHFLAGS='-shared -Wl,-h,$$(@F)'
2420         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2421         network_extralibs="-lsocket -lnsl"
2422         add_cppflags -D__EXTENSIONS__
2423         # When using suncc to build, the Solaris linker will mark
2424         # an executable with each instruction set encountered by
2425         # the Solaris assembler.  As our libraries contain their own
2426         # guards for processor-specific code, instead suppress
2427         # generation of the HWCAPS ELF section on Solaris x86 only.
2428         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2429         nm_opts='-P -g'
2430         ;;
2431     netbsd)
2432         disable symver
2433         oss_indev_extralibs="-lossaudio"
2434         oss_outdev_extralibs="-lossaudio"
2435         ;;
2436     openbsd)
2437         enable malloc_aligned
2438         # On OpenBSD 4.5. the compiler does not use PIC unless
2439         # explicitly using -fPIC. Libav builds fine without PIC,
2440         # however the generated executable will not do anything
2441         # (simply quits with exit-code 1, no crash, no output).
2442         # Thus explicitly enable PIC here.
2443         enable pic
2444         disable symver
2445         SHFLAGS='-shared'
2446         oss_indev_extralibs="-lossaudio"
2447         oss_outdev_extralibs="-lossaudio"
2448         ;;
2449     dragonfly)
2450         enable malloc_aligned
2451         disable symver
2452         ;;
2453     freebsd)
2454         enable malloc_aligned
2455         ;;
2456     bsd/os)
2457         add_extralibs -lpoll -lgnugetopt
2458         ;;
2459     darwin)
2460         enable malloc_aligned
2461         gas="gas-preprocessor.pl $cc"
2462         enabled ppc && add_asflags -force_cpusubtype_ALL
2463         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2464         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2465         add_ldflags -Wl,-dynamic,-search_paths_first
2466         SLIBSUF=".dylib"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2469         AVSERVERLDFLAGS=-Wl,-bind_at_load
2470         objformat="macho"
2471         enabled x86_64 && objformat="macho64"
2472         enabled_any pic shared ||
2473             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2474         ;;
2475     mingw32*)
2476         if test $target_os = "mingw32ce"; then
2477             disable network
2478         else
2479             target_os=mingw32
2480         fi
2481         LIBTARGET=i386
2482         if enabled x86_64; then
2483             enable malloc_aligned
2484             LIBTARGET="i386:x86-64"
2485         elif enabled arm; then
2486             LIBTARGET=arm-wince
2487         fi
2488         shlibdir_default="$bindir_default"
2489         SLIBPREF=""
2490         SLIBSUF=".dll"
2491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2493         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2494         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2495         SLIB_INSTALL_LINKS=
2496         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2497         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2498         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'
2499         objformat="win32"
2500         dlltool="${cross_prefix}dlltool"
2501         enable dos_paths
2502         check_cflags -fno-common
2503         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2504                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2505                 die "ERROR: MinGW runtime version must be >= 3.15."
2506         add_cppflags -U__STRICT_ANSI__
2507         ;;
2508     cygwin*)
2509         target_os=cygwin
2510         shlibdir_default="$bindir_default"
2511         SLIBPREF="cyg"
2512         SLIBSUF=".dll"
2513         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2514         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2515         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2516         objformat="win32"
2517         enable dos_paths
2518         check_cflags -fno-common
2519         add_cppflags -U__STRICT_ANSI__
2520         ;;
2521     *-dos|freedos|opendos)
2522         network_extralibs="-lsocket"
2523         objformat="coff"
2524         enable dos_paths
2525         add_cppflags -U__STRICT_ANSI__
2526         ;;
2527     linux)
2528         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2529         enable dv1394
2530         ;;
2531     irix*)
2532         target_os=irix
2533         ranlib="echo ignoring ranlib"
2534         ;;
2535     os/2*)
2536         ln_s="cp -f"
2537         objformat="aout"
2538         add_cppflags -D_GNU_SOURCE
2539         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2540         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2541         AVSERVERLDFLAGS=""
2542         LIBSUF="_s.a"
2543         SLIBPREF=""
2544         SLIBSUF=".dll"
2545         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2546         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2547         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2548           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2549           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2550           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2551           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2552           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2553         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2554           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2555         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2556         enable dos_paths
2557         ;;
2558     gnu/kfreebsd)
2559         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2560         ;;
2561     gnu)
2562         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2563         ;;
2564     qnx)
2565         add_cppflags -D_QNX_SOURCE
2566         network_extralibs="-lsocket"
2567         ;;
2568     symbian)
2569         SLIBSUF=".dll"
2570         enable dos_paths
2571         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2572         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2573         add_ldflags -Wl,--target1-abs,--no-undefined \
2574                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2575                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2576         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2577                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2578                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2579         ;;
2580     none)
2581         ;;
2582     *)
2583         die "Unknown OS '$target_os'."
2584         ;;
2585 esac
2586
2587 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2588
2589 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2590
2591 set_default $PATHS_LIST
2592
2593 # we need to build at least one lib type
2594 if ! enabled_any static shared; then
2595     cat <<EOF
2596 At least one library type must be built.
2597 Specify --enable-static to build the static libraries or --enable-shared to
2598 build the shared libraries as well. To only build the shared libraries specify
2599 --disable-static in addition to --enable-shared.
2600 EOF
2601     exit 1;
2602 fi
2603
2604 die_license_disabled() {
2605     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2606 }
2607
2608 die_license_disabled gpl libcdio
2609 die_license_disabled gpl libx264
2610 die_license_disabled gpl libxavs
2611 die_license_disabled gpl libxvid
2612 die_license_disabled gpl x11grab
2613
2614 die_license_disabled nonfree libfaac
2615 die_license_disabled nonfree openssl
2616
2617 die_license_disabled version3 libopencore_amrnb
2618 die_license_disabled version3 libopencore_amrwb
2619 die_license_disabled version3 libvo_aacenc
2620 die_license_disabled version3 libvo_amrwbenc
2621
2622 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2623
2624 disabled optimizations || check_cflags -fomit-frame-pointer
2625
2626 enable_pic() {
2627     enable pic
2628     add_cppflags -DPIC
2629     add_cflags   -fPIC
2630     add_asflags  -fPIC
2631 }
2632
2633 enabled pic && enable_pic
2634
2635 check_cc <<EOF || die "Symbol mangling check failed."
2636 int ff_extern;
2637 EOF
2638 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2639 extern_prefix=${sym%%ff_extern*}
2640
2641 check_cc <<EOF && enable inline_asm
2642 void foo(void) { __asm__ volatile ("" ::); }
2643 EOF
2644
2645 _restrict=
2646 for restrict_keyword in restrict __restrict__ __restrict; do
2647     check_cc <<EOF && _restrict=$restrict_keyword && break
2648 void foo(char * $restrict_keyword p);
2649 EOF
2650 done
2651
2652 check_cc <<EOF && enable attribute_packed
2653 struct { int x; } __attribute__((packed)) x;
2654 EOF
2655
2656 check_cc <<EOF && enable attribute_may_alias
2657 union { int x; } __attribute__((may_alias)) x;
2658 EOF
2659
2660 check_cc <<EOF || die "endian test failed"
2661 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2662 EOF
2663 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2664
2665 if enabled alpha; then
2666
2667     check_cflags -mieee
2668
2669 elif enabled arm; then
2670
2671     enabled thumb && check_cflags -mthumb || check_cflags -marm
2672     nogas=die
2673
2674     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2675         enable vfp_args
2676     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2677         case "${cross_prefix:-$cc}" in
2678             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2679             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2680 __asm__ (".eabi_attribute 28, 1");
2681 int main(void) { return 0; }
2682 EOF
2683         esac
2684         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2685     fi
2686
2687     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2688     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2689     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2690     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2691     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2692     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2693     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2694
2695     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2696
2697     enabled_all armv6t2 shared !pic && enable_pic
2698
2699 elif enabled mips; then
2700
2701     check_asm loongson '"dmult.g $1, $2, $3"'
2702     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2703
2704 elif enabled ppc; then
2705
2706     enable local_aligned_8 local_aligned_16
2707
2708     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2709     check_asm ibm_asm   '"add 0, 0, 0"'
2710     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2711     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2712
2713     # AltiVec flags: The FSF version of GCC differs from the Apple version
2714     if enabled altivec; then
2715         nogas=warn
2716         check_cflags -maltivec -mabi=altivec &&
2717         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2718         check_cflags -faltivec
2719
2720         # check if our compiler supports Motorola AltiVec C API
2721         check_cc <<EOF || disable altivec
2722 $inc_altivec_h
2723 int main(void) {
2724     vector signed int v1, v2, v3;
2725     v1 = vec_add(v2,v3);
2726     return 0;
2727 }
2728 EOF
2729
2730         # check if our compiler supports braces for vector declarations
2731         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2732 $inc_altivec_h
2733 int main (void) { (vector int) {1}; return 0; }
2734 EOF
2735     fi
2736
2737 elif enabled sparc; then
2738
2739     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2740         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2741
2742 elif enabled x86; then
2743
2744     enable local_aligned_8 local_aligned_16
2745
2746     # check whether EBP is available on x86
2747     # As 'i' is stored on the stack, this program will crash
2748     # if the base pointer is used to access it because the
2749     # base pointer is cleared in the inline assembly code.
2750     check_exec_crash <<EOF && enable ebp_available
2751     volatile int i=0;
2752     __asm__ volatile (
2753         "xorl %%ebp, %%ebp"
2754     ::: "%ebp");
2755     return i;
2756 EOF
2757
2758     # check whether EBX is available on x86
2759     check_asm ebx_available '""::"b"(0)' &&
2760         check_asm ebx_available '"":::"%ebx"'
2761
2762     # check whether xmm clobbers are supported
2763     check_asm xmm_clobbers '"":::"%xmm0"'
2764
2765     # check whether binutils is new enough to compile SSSE3/MMX2
2766     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2767     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2768
2769     if ! disabled_any asm mmx yasm; then
2770         if check_cmd $yasmexe --version; then
2771             enabled x86_64 && yasm_extra="-m amd64"
2772             yasm_debug="-g dwarf2"
2773         elif check_cmd nasm -v; then
2774             yasmexe=nasm
2775             yasm_debug="-g -F dwarf"
2776             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2777         fi
2778
2779         YASMFLAGS="-f $objformat $yasm_extra"
2780         enabled pic               && append YASMFLAGS "-DPIC"
2781         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2782         case "$objformat" in
2783             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2784         esac
2785
2786         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2787             die "yasm not found, use --disable-yasm for a crippled build"
2788         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2789     fi
2790
2791     case "$cpu" in
2792         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2793             disable fast_clz
2794         ;;
2795     esac
2796
2797 fi
2798
2799 if enabled asm; then
2800     as=${gas:=$as}
2801     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2802         $nogas "GNU assembler not found, install gas-preprocessor"
2803 fi
2804
2805 check_ldflags -Wl,--as-needed
2806
2807 if check_func dlopen; then
2808     ldl=
2809 elif check_func dlopen -ldl; then
2810     ldl=-ldl
2811 fi
2812
2813 if enabled network; then
2814     check_type "sys/types.h sys/socket.h" socklen_t
2815     check_type netdb.h "struct addrinfo"
2816     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2817     check_type netinet/in.h "struct sockaddr_in6"
2818     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2819     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2820     # Prefer arpa/inet.h over winsock2
2821     if check_header arpa/inet.h ; then
2822         check_func closesocket
2823     elif check_header winsock2.h ; then
2824         check_func_headers winsock2.h closesocket -lws2 && \
2825             network_extralibs="-lws2" || \
2826         { check_func_headers winsock2.h closesocket -lws2_32 && \
2827             network_extralibs="-lws2_32"; }
2828         check_type ws2tcpip.h socklen_t
2829         check_type ws2tcpip.h "struct addrinfo"
2830         check_type ws2tcpip.h "struct ipv6_mreq"
2831         check_type ws2tcpip.h "struct sockaddr_in6"
2832         check_type ws2tcpip.h "struct sockaddr_storage"
2833         check_struct winsock2.h "struct sockaddr" sa_len
2834     else
2835         disable network
2836     fi
2837 fi
2838
2839 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2840 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2841
2842 check_func  fcntl
2843 check_func  fork
2844 check_func  getaddrinfo $network_extralibs
2845 check_func  gethrtime
2846 check_func  getrusage
2847 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2848 check_func  inet_aton $network_extralibs
2849 check_func  isatty
2850 check_func  localtime_r
2851 check_func  ${malloc_prefix}memalign            && enable memalign
2852 check_func  mkstemp
2853 check_func  mmap
2854 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2855 check_func  setrlimit
2856 check_func  strerror_r
2857 check_func  strptime
2858 check_func  strtok_r
2859 check_func  sched_getaffinity
2860 check_func  sysconf
2861 check_func  sysctl
2862 check_func_headers io.h setmode
2863 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2864 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2865 check_func_headers windows.h GetProcessAffinityMask
2866 check_func_headers windows.h GetProcessTimes
2867 check_func_headers windows.h MapViewOfFile
2868 check_func_headers windows.h VirtualAlloc
2869
2870 check_header dlfcn.h
2871 check_header dxva2api.h
2872 check_header malloc.h
2873 check_header poll.h
2874 check_header sys/mman.h
2875 check_header sys/param.h
2876 check_header sys/resource.h
2877 check_header sys/select.h
2878 check_header vdpau/vdpau.h
2879 check_header vdpau/vdpau_x11.h
2880 check_header X11/extensions/XvMClib.h
2881
2882 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2883
2884 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2885 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2886
2887 if ! disabled w32threads && ! enabled pthreads; then
2888     check_func _beginthreadex && enable w32threads
2889 fi
2890
2891 # check for some common methods of building with pthread support
2892 # do this before the optional library checks as some of them require pthreads
2893 if ! disabled pthreads && ! enabled w32threads; then
2894     enable pthreads
2895     if check_func pthread_create; then
2896         :
2897     elif check_func pthread_create -pthread; then
2898         add_cflags -pthread
2899         add_extralibs -pthread
2900     elif check_func pthread_create -pthreads; then
2901         add_cflags -pthreads
2902         add_extralibs -pthreads
2903     elif check_func pthread_create -lpthreadGC2; then
2904         add_extralibs -lpthreadGC2
2905     elif ! check_lib pthread.h pthread_create -lpthread; then
2906         disable pthreads
2907     fi
2908 fi
2909
2910 for thread in $THREADS_LIST; do
2911     if enabled $thread; then
2912         test -n "$thread_type" &&
2913             die "ERROR: Only one thread type must be selected." ||
2914             thread_type="$thread"
2915     fi
2916 done
2917
2918 check_lib math.h sin -lm && LIBM="-lm"
2919 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2920
2921 check_mathfunc exp2
2922 check_mathfunc exp2f
2923 check_mathfunc llrint
2924 check_mathfunc llrintf
2925 check_mathfunc log2
2926 check_mathfunc log2f
2927 check_mathfunc lrint
2928 check_mathfunc lrintf
2929 check_mathfunc round
2930 check_mathfunc roundf
2931 check_mathfunc trunc
2932 check_mathfunc truncf
2933
2934 # these are off by default, so fail if requested and not available
2935 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2936 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2937 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2938 enabled libdirac   && require_pkg_config dirac                          \
2939     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2940     "dirac_decoder_init dirac_encoder_init"
2941 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2942 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2943 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2944 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2945 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2946 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2947 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2948 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2949 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2950 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2951 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2952 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2953 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2954 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2955 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2956 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2957 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2958 enabled libvpx     && {
2959     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2960                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2961     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2962                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2963 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2964                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2965                         die "ERROR: libx264 version must be >= 0.118."; }
2966 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2967 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2968 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2969                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2970                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2971                         die "ERROR: openssl not found"; }
2972
2973 # libdc1394 check
2974 if enabled libdc1394; then
2975     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2976         enable libdc1394_2; } ||
2977     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2978         enable libdc1394_1; } ||
2979     die "ERROR: No version of libdc1394 found "
2980 fi
2981
2982 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2983     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2984     enable sdl &&
2985     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2986 fi
2987
2988 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2989
2990 check_header linux/fb.h
2991 check_header linux/videodev2.h
2992 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2993
2994 check_header sys/videoio.h
2995
2996 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2997 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2998 # w32api 3.12 had it defined wrong
2999 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3000
3001 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3002 { check_header dev/bktr/ioctl_meteor.h &&
3003   check_header dev/bktr/ioctl_bt848.h; } ||
3004 { check_header machine/ioctl_meteor.h &&
3005   check_header machine/ioctl_bt848.h; } ||
3006 { check_header dev/video/meteor/ioctl_meteor.h &&
3007   check_header dev/video/bktr/ioctl_bt848.h; } ||
3008 check_header dev/ic/bt8xx.h
3009
3010 check_header sndio.h
3011 check_header sys/soundcard.h
3012 check_header soundcard.h
3013
3014 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3015
3016 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3017
3018 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3019
3020 enabled libcdio &&
3021     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3022
3023 enabled x11grab                         &&
3024 check_header X11/Xlib.h                 &&
3025 check_header X11/extensions/XShm.h      &&
3026 check_header X11/extensions/Xfixes.h    &&
3027 check_func XOpenDisplay -lX11           &&
3028 check_func XShmCreateImage -lX11 -lXext &&
3029 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3030
3031 # check for VDA header
3032 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3033     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3034 fi
3035
3036 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3037 check_cpp_condition \
3038     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3039     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3040       disable vdpau; }
3041 fi
3042
3043 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3044
3045 # add some useful compiler flags if supported
3046 check_cflags -Wdeclaration-after-statement
3047 check_cflags -Wall
3048 check_cflags -Wno-parentheses
3049 check_cflags -Wno-switch
3050 check_cflags -Wno-format-zero-length
3051 check_cflags -Wdisabled-optimization
3052 check_cflags -Wpointer-arith
3053 check_cflags -Wredundant-decls
3054 check_cflags -Wno-pointer-sign
3055 check_cflags -Wcast-qual
3056 check_cflags -Wwrite-strings
3057 check_cflags -Wtype-limits
3058 check_cflags -Wundef
3059 check_cflags -Wmissing-prototypes
3060 check_cflags -Wstrict-prototypes
3061 enabled extra_warnings && check_cflags -Winline
3062
3063 # add some linker flags
3064 check_ldflags -Wl,--warn-common
3065 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3066 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3067
3068 enabled xmm_clobber_test &&                             \
3069     check_ldflags -Wl,--wrap,avcodec_open2              \
3070                   -Wl,--wrap,avcodec_decode_audio4      \
3071                   -Wl,--wrap,avcodec_decode_video2      \
3072                   -Wl,--wrap,avcodec_decode_subtitle2   \
3073                   -Wl,--wrap,avcodec_encode_audio2      \
3074                   -Wl,--wrap,avcodec_encode_video       \
3075                   -Wl,--wrap,avcodec_encode_subtitle    \
3076                   -Wl,--wrap,sws_scale ||               \
3077     disable xmm_clobber_test
3078
3079 echo "X{};" > $TMPV
3080 if test_ldflags -Wl,--version-script,$TMPV; then
3081     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3082     check_cc <<EOF && enable symver_asm_label
3083 void ff_foo(void) __asm__ ("av_foo@VERSION");
3084 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3085 EOF
3086     check_cc <<EOF && enable symver_gnu_asm
3087 __asm__(".symver ff_foo,av_foo@VERSION");
3088 void ff_foo(void) {}
3089 EOF
3090 fi
3091
3092 if [ -n "$optflags" ]; then
3093     add_cflags $optflags
3094 elif enabled small; then
3095     add_cflags $size_cflags
3096 elif enabled optimizations; then
3097     add_cflags $speed_cflags
3098 else
3099     add_cflags $noopt_cflags
3100 fi
3101 check_cflags -fno-math-errno
3102 check_cflags -fno-signed-zeros
3103
3104 if enabled icc; then
3105     # Just warnings, no remarks
3106     check_cflags -w1
3107     # -wd: Disable following warnings
3108     # 144, 167, 556: -Wno-pointer-sign
3109     # 1292: attribute "foo" ignored
3110     # 10006: ignoring unknown option -fno-signed-zeros
3111     # 10148: ignoring unknown option -Wno-parentheses
3112     # 10156: ignoring option '-W'; no argument required
3113     check_cflags -wd144,167,556,1292,10006,10148,10156
3114     # 11030: Warning unknown option --as-needed
3115     # 10156: ignoring option '-export'; no argument required
3116     check_ldflags -wd10156,11030
3117     # Allow to compile with optimizations
3118     check_ldflags -march=$cpu
3119     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3120     enable ebp_available
3121     if enabled x86_32; then
3122         test ${icc_version%%.*} -ge 11 && \
3123             check_cflags -falign-stack=maintain-16-byte || \
3124             disable aligned_stack
3125     fi
3126 elif enabled ccc; then
3127     # disable some annoying warnings
3128     add_cflags -msg_disable cvtu32to64
3129     add_cflags -msg_disable embedcomment
3130     add_cflags -msg_disable needconstext
3131     add_cflags -msg_disable nomainieee
3132     add_cflags -msg_disable ptrmismatch1
3133     add_cflags -msg_disable unreachcode
3134 elif enabled gcc; then
3135     check_cflags -fno-tree-vectorize
3136     check_cflags -Werror=implicit-function-declaration
3137     check_cflags -Werror=missing-prototypes
3138     check_cflags -Werror=declaration-after-statement
3139 elif enabled llvm_gcc; then
3140     check_cflags -mllvm -stack-alignment=16
3141 elif enabled clang; then
3142     check_cflags -mllvm -stack-alignment=16
3143     check_cflags -Qunused-arguments
3144 elif enabled armcc; then
3145     # 2523: use of inline assembler is deprecated
3146     add_cflags -W${armcc_opt},--diag_suppress=2523
3147     add_cflags -W${armcc_opt},--diag_suppress=1207
3148     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3149     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3150     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3151     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3152 elif enabled tms470; then
3153     add_cflags -pds=824 -pds=837
3154 elif enabled pathscale; then
3155     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3156 fi
3157
3158 enabled_any $THREADS_LIST      && enable threads
3159
3160 check_deps $CONFIG_LIST       \
3161            $CONFIG_EXTRA      \
3162            $HAVE_LIST         \
3163            $ALL_COMPONENTS    \
3164            $ALL_TESTS         \
3165
3166 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3167
3168 ! enabled_any memalign posix_memalign malloc_aligned &&
3169     enabled_any $need_memalign && enable memalign_hack
3170
3171 echo "install prefix            $prefix"
3172 echo "source path               $source_path"
3173 echo "C compiler                $cc"
3174 echo "ARCH                      $arch ($cpu)"
3175 if test "$build_suffix" != ""; then
3176     echo "build suffix              $build_suffix"
3177 fi
3178 if test "$extra_version" != ""; then
3179     echo "version string suffix     $extra_version"
3180 fi
3181 echo "big-endian                ${bigendian-no}"
3182 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3183 if enabled x86; then
3184     echo "${yasmexe}                      ${yasm-no}"
3185     echo "MMX enabled               ${mmx-no}"
3186     echo "MMX2 enabled              ${mmx2-no}"
3187     echo "3DNow! enabled            ${amd3dnow-no}"
3188     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3189     echo "SSE enabled               ${sse-no}"
3190     echo "SSSE3 enabled             ${ssse3-no}"
3191     echo "AVX enabled               ${avx-no}"
3192     echo "CMOV enabled              ${cmov-no}"
3193     echo "CMOV is fast              ${fast_cmov-no}"
3194     echo "EBX available             ${ebx_available-no}"
3195     echo "EBP available             ${ebp_available-no}"
3196 fi
3197 if enabled arm; then
3198     echo "ARMv5TE enabled           ${armv5te-no}"
3199     echo "ARMv6 enabled             ${armv6-no}"
3200     echo "ARMv6T2 enabled           ${armv6t2-no}"
3201     echo "ARM VFP enabled           ${armvfp-no}"
3202     echo "IWMMXT enabled            ${iwmmxt-no}"
3203     echo "NEON enabled              ${neon-no}"
3204 fi
3205 if enabled mips; then
3206     echo "MMI enabled               ${mmi-no}"
3207 fi
3208 if enabled ppc; then
3209     echo "AltiVec enabled           ${altivec-no}"
3210     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3211     echo "dcbzl available           ${dcbzl-no}"
3212 fi
3213 if enabled sparc; then
3214     echo "VIS enabled               ${vis-no}"
3215 fi
3216 echo "debug symbols             ${debug-no}"
3217 echo "optimize for size         ${small-no}"
3218 echo "optimizations             ${optimizations-no}"
3219 echo "static                    ${static-no}"
3220 echo "shared                    ${shared-no}"
3221 echo "postprocessing support    ${postproc-no}"
3222 echo "new filter support        ${avfilter-no}"
3223 echo "network support           ${network-no}"
3224 echo "threading support         ${thread_type-no}"
3225 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3226 echo "SDL support               ${sdl-no}"
3227 echo "libdxva2 enabled          ${dxva2-no}"
3228 echo "libva enabled             ${vaapi-no}"
3229 echo "libvdpau enabled          ${vdpau-no}"
3230 echo "AVISynth enabled          ${avisynth-no}"
3231 echo "frei0r enabled            ${frei0r-no}"
3232 echo "gnutls enabled            ${gnutls-no}"
3233 echo "libcdio support           ${libcdio-no}"
3234 echo "libdc1394 support         ${libdc1394-no}"
3235 echo "libdirac enabled          ${libdirac-no}"
3236 echo "libfaac enabled           ${libfaac-no}"
3237 echo "libgsm enabled            ${libgsm-no}"
3238 echo "libmp3lame enabled        ${libmp3lame-no}"
3239 echo "libnut enabled            ${libnut-no}"
3240 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3241 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3242 echo "libopencv support         ${libopencv-no}"
3243 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3244 echo "libpulse enabled          ${libpulse-no}"
3245 echo "librtmp enabled           ${librtmp-no}"
3246 echo "libschroedinger enabled   ${libschroedinger-no}"
3247 echo "libspeex enabled          ${libspeex-no}"
3248 echo "libtheora enabled         ${libtheora-no}"
3249 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3250 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3251 echo "libvorbis enabled         ${libvorbis-no}"
3252 echo "libvpx enabled            ${libvpx-no}"
3253 echo "libx264 enabled           ${libx264-no}"
3254 echo "libxavs enabled           ${libxavs-no}"
3255 echo "libxvid enabled           ${libxvid-no}"
3256 echo "openssl enabled           ${openssl-no}"
3257 echo "zlib enabled              ${zlib-no}"
3258 echo "bzlib enabled             ${bzlib-no}"
3259 echo
3260
3261 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3262     echo "Enabled ${type}s:"
3263     eval list=\$$(toupper $type)_LIST
3264     print_enabled '_*' $list | sort | pr -r -3 -t
3265     echo
3266 done
3267
3268 license="LGPL version 2.1 or later"
3269 if enabled nonfree; then
3270     license="nonfree and unredistributable"
3271 elif enabled gplv3; then
3272     license="GPL version 3 or later"
3273 elif enabled lgplv3; then
3274     license="LGPL version 3 or later"
3275 elif enabled gpl; then
3276     license="GPL version 2 or later"
3277 fi
3278
3279 echo "License: $license"
3280
3281 echo "Creating config.mak and config.h..."
3282
3283 test -e Makefile || $ln_s "$source_path/Makefile" .
3284
3285 config_files="$TMPH config.mak"
3286
3287 cat > config.mak <<EOF
3288 # Automatically generated by configure - do not modify!
3289 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3290 prefix=$prefix
3291 LIBDIR=\$(DESTDIR)$libdir
3292 SHLIBDIR=\$(DESTDIR)$shlibdir
3293 INCDIR=\$(DESTDIR)$incdir
3294 BINDIR=\$(DESTDIR)$bindir
3295 DATADIR=\$(DESTDIR)$datadir
3296 MANDIR=\$(DESTDIR)$mandir
3297 SRC_PATH=$source_path
3298 CC_IDENT=$cc_ident
3299 ARCH=$arch
3300 CC=$cc
3301 AS=$as
3302 LD=$ld
3303 DEPCC=$dep_cc
3304 YASM=$yasmexe
3305 YASMDEP=$yasmexe
3306 AR=$ar
3307 RANLIB=$ranlib
3308 LN_S=$ln_s
3309 CPPFLAGS=$CPPFLAGS
3310 CFLAGS=$CFLAGS
3311 ASFLAGS=$ASFLAGS
3312 AS_O=$CC_O
3313 CC_O=$CC_O
3314 DLLTOOL=$dlltool
3315 LDFLAGS=$LDFLAGS
3316 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3317 SHFLAGS=$SHFLAGS
3318 YASMFLAGS=$YASMFLAGS
3319 BUILDSUF=$build_suffix
3320 FULLNAME=$FULLNAME
3321 LIBPREF=$LIBPREF
3322 LIBSUF=$LIBSUF
3323 LIBNAME=$LIBNAME
3324 SLIBPREF=$SLIBPREF
3325 SLIBSUF=$SLIBSUF
3326 EXESUF=$EXESUF
3327 EXTRA_VERSION=$extra_version
3328 DEPFLAGS=$DEPFLAGS
3329 CCDEP=$CCDEP
3330 ASDEP=$ASDEP
3331 CC_DEPFLAGS=$CC_DEPFLAGS
3332 AS_DEPFLAGS=$AS_DEPFLAGS
3333 HOSTCC=$host_cc
3334 HOSTCFLAGS=$host_cflags
3335 HOSTEXESUF=$HOSTEXESUF
3336 HOSTLDFLAGS=$host_ldflags
3337 HOSTLIBS=$host_libs
3338 TARGET_EXEC=$target_exec
3339 TARGET_PATH=$target_path
3340 SDL_LIBS=$sdl_libs
3341 SDL_CFLAGS=$sdl_cflags
3342 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3343 EXTRALIBS=$extralibs
3344 INSTALL=install
3345 LIBTARGET=${LIBTARGET}
3346 SLIBNAME=${SLIBNAME}
3347 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3348 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3349 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3350 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3351 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3352 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3353 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3354 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3355 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3356 EOF
3357
3358 get_version(){
3359     name=$1
3360     file=$source_path/$2
3361     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3362     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3363     lcname=$(tolower $name)
3364     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3365     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3366 }
3367
3368 get_version LIBAVCODEC  libavcodec/version.h
3369 get_version LIBAVDEVICE libavdevice/avdevice.h
3370 get_version LIBAVFILTER libavfilter/version.h
3371 get_version LIBAVFORMAT libavformat/version.h
3372 get_version LIBAVUTIL   libavutil/avutil.h
3373 get_version LIBPOSTPROC libpostproc/postprocess.h
3374 get_version LIBSWSCALE  libswscale/swscale.h
3375
3376 cat > $TMPH <<EOF
3377 /* Automatically generated by configure - do not modify! */
3378 #ifndef LIBAV_CONFIG_H
3379 #define LIBAV_CONFIG_H
3380 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3381 #define LIBAV_LICENSE "$(c_escape $license)"
3382 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3383 #define CC_TYPE "$cc_type"
3384 #define CC_VERSION $cc_version
3385 #define restrict $_restrict
3386 #define EXTERN_PREFIX "${extern_prefix}"
3387 #define EXTERN_ASM ${extern_prefix}
3388 #define SLIBSUF "$SLIBSUF"
3389 EOF
3390
3391 test -n "$malloc_prefix" &&
3392     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3393
3394 if enabled small || disabled optimizations; then
3395     echo "#undef  av_always_inline"  >> $TMPH
3396     if enabled small; then
3397         echo "#define av_always_inline inline"  >> $TMPH
3398     else
3399         echo "#define av_always_inline av_unused"  >> $TMPH
3400     fi
3401 fi
3402
3403 if enabled yasm; then
3404     append config_files $TMPASM
3405     printf '' >$TMPASM
3406 fi
3407
3408 print_config ARCH_   "$config_files" $ARCH_LIST
3409 print_config HAVE_   "$config_files" $HAVE_LIST
3410 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3411                                      $CONFIG_EXTRA      \
3412                                      $ALL_COMPONENTS    \
3413
3414 cat >>config.mak <<EOF
3415 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3416 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3417 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3418 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3419 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3420 EOF
3421
3422 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3423
3424 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3425 cp_if_changed $TMPH config.h
3426 touch .config
3427
3428 enabled yasm && cp_if_changed $TMPASM config.asm
3429
3430 cat > $TMPH <<EOF
3431 /* Generated by ffconf */
3432 #ifndef AVUTIL_AVCONFIG_H
3433 #define AVUTIL_AVCONFIG_H
3434 EOF
3435
3436 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3437
3438 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3439
3440 cp_if_changed $TMPH libavutil/avconfig.h
3441
3442 test -n "$WARNINGS" && printf "\n$WARNINGS"
3443
3444 # build pkg-config files
3445
3446 pkgconfig_generate(){
3447 name=$1
3448 shortname=${name#lib}${build_suffix}
3449 comment=$2
3450 version=$3
3451 libs=$4
3452 requires=$5
3453 enabled ${name#lib} || return 0
3454 mkdir -p $name
3455 cat <<EOF > $name/$name.pc
3456 prefix=$prefix
3457 exec_prefix=\${prefix}
3458 libdir=$libdir
3459 includedir=$incdir
3460
3461 Name: $name
3462 Description: $comment
3463 Version: $version
3464 Requires: $(enabled shared || echo $requires)
3465 Requires.private: $(enabled shared && echo $requires)
3466 Conflicts:
3467 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3468 Libs.private: $(enabled shared && echo $libs)
3469 Cflags: -I\${includedir}
3470 EOF
3471 cat <<EOF > $name/$name-uninstalled.pc
3472 prefix=
3473 exec_prefix=
3474 libdir=\${pcfiledir}
3475 includedir=${source_path}
3476
3477 Name: $name
3478 Description: $comment
3479 Version: $version
3480 Requires: $requires
3481 Conflicts:
3482 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3483 Cflags: -I\${includedir}
3484 EOF
3485 }
3486
3487 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3488 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3489 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3490 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3491 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3492 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3493 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"