sctp: Initial tcp-alike sctp support with streams
[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 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-avconv         disable avconv build
105   --disable-avplay         disable avplay build
106   --disable-avprobe        disable avprobe build
107   --disable-avserver       disable avserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swscale        disable libswscale build
112   --disable-avfilter       disable video filter support [no]
113   --disable-avresample     disable libavresample build [no]
114   --disable-pthreads       disable pthreads [auto]
115   --disable-w32threads     disable Win32 threads [auto]
116   --enable-x11grab         enable X11 grabbing [no]
117   --disable-network        disable network support [no]
118   --disable-dct            disable DCT code
119   --disable-mdct           disable MDCT code
120   --disable-rdft           disable RDFT code
121   --disable-fft            disable FFT code
122   --enable-dxva2           enable DXVA2 code
123   --enable-vaapi           enable VAAPI code
124   --enable-vda             enable VDA code
125   --enable-vdpau           enable VDPAU code
126
127 Individual component options:
128   --disable-everything     disable all components listed below
129   --disable-encoder=NAME   disable encoder NAME
130   --enable-encoder=NAME    enable encoder NAME
131   --disable-encoders       disable all encoders
132   --disable-decoder=NAME   disable decoder NAME
133   --enable-decoder=NAME    enable decoder NAME
134   --disable-decoders       disable all decoders
135   --disable-hwaccel=NAME   disable hwaccel NAME
136   --enable-hwaccel=NAME    enable hwaccel NAME
137   --disable-hwaccels       disable all hwaccels
138   --disable-muxer=NAME     disable muxer NAME
139   --enable-muxer=NAME      enable muxer NAME
140   --disable-muxers         disable all muxers
141   --disable-demuxer=NAME   disable demuxer NAME
142   --enable-demuxer=NAME    enable demuxer NAME
143   --disable-demuxers       disable all demuxers
144   --enable-parser=NAME     enable parser NAME
145   --disable-parser=NAME    disable parser NAME
146   --disable-parsers        disable all parsers
147   --enable-bsf=NAME        enable bitstream filter NAME
148   --disable-bsf=NAME       disable bitstream filter NAME
149   --disable-bsfs           disable all bitstream filters
150   --enable-protocol=NAME   enable protocol NAME
151   --disable-protocol=NAME  disable protocol NAME
152   --disable-protocols      disable all protocols
153   --enable-indev=NAME      enable input device NAME
154   --disable-indev=NAME     disable input device NAME
155   --disable-indevs         disable input devices
156   --enable-outdev=NAME     enable output device NAME
157   --disable-outdev=NAME    disable output device NAME
158   --disable-outdevs        disable output devices
159   --disable-devices        disable all devices
160   --enable-filter=NAME     enable filter NAME
161   --disable-filter=NAME    disable filter NAME
162   --disable-filters        disable all 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-libfaac         enable FAAC support via libfaac [no]
176   --enable-libfreetype     enable libfreetype [no]
177   --enable-libgsm          enable GSM support via libgsm [no]
178   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
179   --enable-libnut          enable NUT (de)muxing via libnut,
180                            native (de)muxer exists [no]
181   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
182   --enable-libpulse        enable Pulseaudio input via libpulse [no]
183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
185   --enable-libspeex        enable Speex support via libspeex [no]
186   --enable-libtheora       enable Theora encoding via libtheora [no]
187   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
188   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
189   --enable-libvorbis       enable Vorbis encoding via libvorbis,
190                            native implementation exists [no]
191   --enable-libvpx          enable VP8 support via libvpx [no]
192   --enable-libx264         enable H.264 encoding via x264 [no]
193   --enable-libxavs         enable AVS encoding via xavs [no]
194   --enable-libxvid         enable Xvid encoding via xvidcore,
195                            native MPEG-4/Xvid encoder exists [no]
196   --enable-openssl         enable openssl [no]
197   --enable-zlib            enable zlib [autodetect]
198
199 Advanced options (experts only):
200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
201   --enable-cross-compile   assume a cross-compiler is used
202   --sysroot=PATH           root of cross-build tree
203   --sysinclude=PATH        location of cross-build system headers
204   --target-os=OS           compiler targets OS [$target_os]
205   --target-exec=CMD        command to run executables on target
206   --target-path=DIR        path to view of build directory on target
207   --nm=NM                  use nm tool
208   --ar=AR                  use archive tool AR [$ar_default]
209   --as=AS                  use assembler AS [$as_default]
210   --cc=CC                  use C compiler CC [$cc_default]
211   --ld=LD                  use linker LD
212   --host-cc=HOSTCC         use host C compiler HOSTCC
213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
215   --host-libs=HLIBS        use libs HLIBS when linking for host
216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --optflags               override optimization-related compiler flags
221   --build-suffix=SUFFIX    library name suffix []
222   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
223   --arch=ARCH              select architecture [$arch]
224   --cpu=CPU                select the minimum required CPU (affects
225                            instruction selection, may crash on older CPUs)
226   --enable-pic             build position-independent code
227   --enable-sram            allow use of on-chip SRAM
228   --disable-symver         disable symbol versioning
229   --disable-fastdiv        disable table-based division
230   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
231   --disable-safe-bitstream-reader
232                            disable buffer boundary checking in bitreaders
233                            (faster, but may crash)
234   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
235
236 Optimization options (experts only):
237   --disable-asm            disable all assembler optimizations
238   --disable-altivec        disable AltiVec optimizations
239   --disable-amd3dnow       disable 3DNow! optimizations
240   --disable-amd3dnowext    disable 3DNow! extended optimizations
241   --disable-mmx            disable MMX optimizations
242   --disable-mmx2           disable MMX2 optimizations
243   --disable-sse            disable SSE optimizations
244   --disable-ssse3          disable SSSE3 optimizations
245   --disable-avx            disable AVX optimizations
246   --disable-armv5te        disable armv5te optimizations
247   --disable-armv6          disable armv6 optimizations
248   --disable-armv6t2        disable armv6t2 optimizations
249   --disable-armvfp         disable ARM VFP optimizations
250   --disable-mmi            disable MMI optimizations
251   --disable-neon           disable NEON optimizations
252   --disable-vis            disable VIS optimizations
253   --disable-yasm           disable use of yasm assembler
254
255 Developer options (useful when working on Libav itself):
256   --disable-debug          disable debugging symbols
257   --enable-debug=LEVEL     set the debug level [$debuglevel]
258   --disable-optimizations  disable compiler optimizations
259   --enable-extra-warnings  enable more compiler warnings
260   --samples=PATH           location of test samples for FATE, if not set use
261                            \$FATE_SAMPLES at make invocation time.
262   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
263                            should be used only for debugging purposes)
264
265 NOTE: Object files are built at the place where configure is launched.
266 EOF
267   exit 0
268 }
269
270 quotes='""'
271
272 log(){
273     echo "$@" >> $logfile
274 }
275
276 log_file(){
277     log BEGIN $1
278     pr -n -t $1 >> $logfile
279     log END $1
280 }
281
282 echolog(){
283     log "$@"
284     echo "$@"
285 }
286
287 warn(){
288     log "WARNING: $*"
289     WARNINGS="${WARNINGS}WARNING: $*\n"
290 }
291
292 die(){
293     echolog "$@"
294     cat <<EOF
295
296 If you think configure made a mistake, make sure you are using the latest
297 version from Git.  If the latest version fails, report the problem to the
298 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
299 EOF
300     if disabled logging; then
301         cat <<EOF
302 Rerun configure with logging enabled (do not use --disable-logging), and
303 include the log this produces with your report.
304 EOF
305     else
306 cat <<EOF
307 Include the log file "$logfile" produced by configure as this will help
308 solving the problem.
309 EOF
310     fi
311     exit 1
312 }
313
314 # Avoid locale weirdness, besides we really just want to translate ASCII.
315 toupper(){
316     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
317 }
318
319 tolower(){
320     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
321 }
322
323 c_escape(){
324     echo "$*" | sed 's/["\\]/\\\0/g'
325 }
326
327 sh_quote(){
328     v=$(echo "$1" | sed "s/'/'\\\\''/g")
329     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
330     echo "$v"
331 }
332
333 cleanws(){
334     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
335 }
336
337 filter(){
338     pat=$1
339     shift
340     for v; do
341         eval "case $v in $pat) echo $v ;; esac"
342     done
343 }
344
345 filter_out(){
346     pat=$1
347     shift
348     for v; do
349         eval "case $v in $pat) ;; *) echo $v ;; esac"
350     done
351 }
352
353 map(){
354     m=$1
355     shift
356     for v; do eval $m; done
357 }
358
359 set_all(){
360     value=$1
361     shift
362     for var in $*; do
363         eval $var=$value
364     done
365 }
366
367 set_weak(){
368     value=$1
369     shift
370     for var; do
371         eval : \${$var:=$value}
372     done
373 }
374
375 set_safe(){
376     var=$1
377     shift
378     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
379 }
380
381 get_safe(){
382     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
383 }
384
385 pushvar(){
386     for var in $*; do
387         eval level=\${${var}_level:=0}
388         eval ${var}_${level}="\$$var"
389         eval ${var}_level=$(($level+1))
390     done
391 }
392
393 popvar(){
394     for var in $*; do
395         eval level=\${${var}_level:-0}
396         test $level = 0 && continue
397         eval level=$(($level-1))
398         eval $var="\${${var}_${level}}"
399         eval ${var}_level=$level
400         eval unset ${var}_${level}
401     done
402 }
403
404 enable(){
405     set_all yes $*
406 }
407
408 disable(){
409     set_all no $*
410 }
411
412 enable_weak(){
413     set_weak yes $*
414 }
415
416 disable_weak(){
417     set_weak no $*
418 }
419
420 enable_safe(){
421     for var; do
422         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
423     done
424 }
425
426 disable_safe(){
427     for var; do
428         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
429     done
430 }
431
432 do_enable_deep(){
433     for var; do
434         enabled $var && continue
435         eval sel="\$${var}_select"
436         eval sgs="\$${var}_suggest"
437         pushvar var sgs
438         enable_deep $sel
439         popvar sgs
440         enable_deep_weak $sgs
441         popvar var
442     done
443 }
444
445 enable_deep(){
446     do_enable_deep $*
447     enable $*
448 }
449
450 enable_deep_weak(){
451     do_enable_deep $*
452     enable_weak $*
453 }
454
455 enabled(){
456     test "${1#!}" = "$1" && op== || op=!=
457     eval test "x\$${1#!}" $op "xyes"
458 }
459
460 disabled(){
461     test "${1#!}" = "$1" && op== || op=!=
462     eval test "x\$${1#!}" $op "xno"
463 }
464
465 enabled_all(){
466     for opt; do
467         enabled $opt || return 1
468     done
469 }
470
471 disabled_all(){
472     for opt; do
473         disabled $opt || return 1
474     done
475 }
476
477 enabled_any(){
478     for opt; do
479         enabled $opt && return 0
480     done
481 }
482
483 disabled_any(){
484     for opt; do
485         disabled $opt && return 0
486     done
487     return 1
488 }
489
490 set_default(){
491     for opt; do
492         eval : \${$opt:=\$${opt}_default}
493     done
494 }
495
496 is_in(){
497     value=$1
498     shift
499     for var in $*; do
500         [ $var = $value ] && return 0
501     done
502     return 1
503 }
504
505 check_deps(){
506     for cfg; do
507         cfg="${cfg#!}"
508         enabled ${cfg}_checking && die "Circular dependency for $cfg."
509         disabled ${cfg}_checking && continue
510         enable ${cfg}_checking
511
512         eval dep_all="\$${cfg}_deps"
513         eval dep_any="\$${cfg}_deps_any"
514         eval dep_sel="\$${cfg}_select"
515         eval dep_sgs="\$${cfg}_suggest"
516         eval dep_ifa="\$${cfg}_if"
517         eval dep_ifn="\$${cfg}_if_any"
518
519         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
520         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
521         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
522
523         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
524         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
525         enabled_all  $dep_all || disable $cfg
526         enabled_any  $dep_any || disable $cfg
527         disabled_any $dep_sel && disable $cfg
528
529         if enabled $cfg; then
530             eval dep_extralibs="\$${cfg}_extralibs"
531             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
532             enable_deep $dep_sel
533             enable_deep_weak $dep_sgs
534         fi
535
536         disable ${cfg}_checking
537     done
538 }
539
540 print_config_h(){
541     enabled $1 && v=1 || v=0
542     echo "#define $2 $v"
543 }
544
545 print_config_mak(){
546     enabled $1 && v= || v=!
547     echo "$v$2=yes"
548 }
549
550 print_config_asm(){
551     enabled $1 && v=1 || v=0
552     echo "%define $2 $v"
553 }
554
555 print_config(){
556     pfx=$1
557     files=$2
558     shift 2
559     for cfg; do
560         ucname="$(toupper $cfg)"
561         for f in $files; do
562             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
563         done
564     done
565 }
566
567 print_enabled(){
568     test "$1" = -n && end=" " && shift || end="\n"
569     suf=$1
570     shift
571     for v; do
572         enabled $v && printf "%s$end" ${v%$suf};
573     done
574 }
575
576 append(){
577     var=$1
578     shift
579     eval "$var=\"\$$var $*\""
580 }
581
582 prepend(){
583     var=$1
584     shift
585     eval "$var=\"$* \$$var\""
586 }
587
588 add_cppflags(){
589     append CPPFLAGS $($filter_cppflags "$@")
590 }
591
592 add_cflags(){
593     append CFLAGS $($filter_cflags "$@")
594 }
595
596 add_asflags(){
597     append ASFLAGS $($filter_asflags "$@")
598 }
599
600 add_ldflags(){
601     append LDFLAGS "$@"
602 }
603
604 add_extralibs(){
605     prepend extralibs "$@"
606 }
607
608 check_cmd(){
609     log "$@"
610     "$@" >> $logfile 2>&1
611 }
612
613 check_cc(){
614     log check_cc "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
618 }
619
620 check_cpp(){
621     log check_cpp "$@"
622     cat > $TMPC
623     log_file $TMPC
624     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
625 }
626
627 check_as(){
628     log check_as "$@"
629     cat > $TMPC
630     log_file $TMPC
631     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
632 }
633
634 check_asm(){
635     log check_asm "$@"
636     name="$1"
637     code="$2"
638     shift 2
639     disable $name
640     check_as "$@" <<EOF && enable $name
641 void foo(void){ __asm__ volatile($code); }
642 EOF
643 }
644
645 check_yasm(){
646     log check_yasm "$@"
647     echo "$1" > $TMPS
648     log_file $TMPS
649     shift 1
650     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
651 }
652
653 check_ld(){
654     log check_ld "$@"
655     flags=''
656     libs=''
657     for f; do
658         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
659     done
660     check_cc $($filter_cflags $flags) || return
661     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
662 }
663
664 check_cppflags(){
665     log check_cppflags "$@"
666     set -- $($filter_cppflags "$@")
667     check_cc "$@" <<EOF && append CPPFLAGS "$@"
668 int x;
669 EOF
670 }
671
672 check_cflags(){
673     log check_cflags "$@"
674     set -- $($filter_cflags "$@")
675     check_cc "$@" <<EOF && append CFLAGS "$@"
676 int x;
677 EOF
678 }
679
680 test_ldflags(){
681     log test_ldflags "$@"
682     check_ld "$@" <<EOF
683 int main(void){ return 0; }
684 EOF
685 }
686
687 check_ldflags(){
688     log check_ldflags "$@"
689     test_ldflags "$@" && add_ldflags "$@"
690 }
691
692 check_header(){
693     log check_header "$@"
694     header=$1
695     shift
696     disable_safe $header
697     check_cpp "$@" <<EOF && enable_safe $header
698 #include <$header>
699 int x;
700 EOF
701 }
702
703 check_func(){
704     log check_func "$@"
705     func=$1
706     shift
707     disable $func
708     check_ld "$@" <<EOF && enable $func
709 extern int $func();
710 int main(void){ $func(); }
711 EOF
712 }
713
714 check_mathfunc(){
715     log check_mathfunc "$@"
716     func=$1
717     shift
718     disable $func
719     check_ld "$@" <<EOF && enable $func
720 #include <math.h>
721 float foo(float f) { return $func(f); }
722 int main(void){ return 0; }
723 EOF
724 }
725
726 check_func_headers(){
727     log check_func_headers "$@"
728     headers=$1
729     funcs=$2
730     shift 2
731     {
732         for hdr in $headers; do
733             echo "#include <$hdr>"
734         done
735         for func in $funcs; do
736             echo "long check_$func(void) { return (long) $func; }"
737         done
738         echo "int main(void) { return 0; }"
739     } | check_ld "$@" && enable $funcs && enable_safe $headers
740 }
741
742 check_cpp_condition(){
743     log check_cpp_condition "$@"
744     header=$1
745     condition=$2
746     shift 2
747     check_cpp $($filter_cppflags "$@") <<EOF
748 #include <$header>
749 #if !($condition)
750 #error "unsatisfied condition: $condition"
751 #endif
752 EOF
753 }
754
755 check_lib(){
756     log check_lib "$@"
757     header="$1"
758     func="$2"
759     shift 2
760     check_header $header && check_func $func "$@" && add_extralibs "$@"
761 }
762
763 check_lib2(){
764     log check_lib2 "$@"
765     headers="$1"
766     funcs="$2"
767     shift 2
768     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
769 }
770
771 check_pkg_config(){
772     log check_pkg_config "$@"
773     pkg="$1"
774     headers="$2"
775     funcs="$3"
776     shift 3
777     $pkg_config --exists $pkg || return
778     pkg_cflags=$($pkg_config --cflags $pkg)
779     pkg_libs=$($pkg_config --libs $pkg)
780     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
781         set_safe ${pkg}_cflags $pkg_cflags   &&
782         set_safe ${pkg}_libs   $pkg_libs
783 }
784
785 check_exec(){
786     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
787 }
788
789 check_exec_crash(){
790     code=$(cat)
791
792     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
793     # are safe but may not be available everywhere.  Thus we use
794     # raise(SIGTERM) instead.  The check is run in a subshell so we
795     # can redirect the "Terminated" message from the shell.  SIGBUS
796     # is not defined by standard C so it is used conditionally.
797
798     (check_exec "$@") >> $logfile 2>&1 <<EOF
799 #include <signal.h>
800 static void sighandler(int sig){
801     raise(SIGTERM);
802 }
803 int main(void){
804     signal(SIGILL, sighandler);
805     signal(SIGFPE, sighandler);
806     signal(SIGSEGV, sighandler);
807 #ifdef SIGBUS
808     signal(SIGBUS, sighandler);
809 #endif
810     { $code }
811 }
812 EOF
813 }
814
815 check_type(){
816     log check_type "$@"
817     headers=$1
818     type=$2
819     shift 2
820     disable_safe "$type"
821     incs=""
822     for hdr in $headers; do
823         incs="$incs
824 #include <$hdr>"
825     done
826     check_cc "$@" <<EOF && enable_safe "$type"
827 $incs
828 $type v;
829 EOF
830 }
831
832 check_struct(){
833     log check_type "$@"
834     headers=$1
835     struct=$2
836     member=$3
837     shift 3
838     disable_safe "${struct}_${member}"
839     incs=""
840     for hdr in $headers; do
841         incs="$incs
842 #include <$hdr>"
843     done
844     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
845 $incs
846 const void *p = &(($struct *)0)->$member;
847 EOF
848 }
849
850 require(){
851     name="$1"
852     header="$2"
853     func="$3"
854     shift 3
855     check_lib $header $func "$@" || die "ERROR: $name not found"
856 }
857
858 require2(){
859     name="$1"
860     headers="$2"
861     func="$3"
862     shift 3
863     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
864 }
865
866 require_pkg_config(){
867     pkg="$1"
868     check_pkg_config "$@" || die "ERROR: $pkg not found"
869     add_cflags    $(get_safe ${pkg}_cflags)
870     add_extralibs $(get_safe ${pkg}_libs)
871 }
872
873 check_host_cc(){
874     log check_host_cc "$@"
875     cat > $TMPC
876     log_file $TMPC
877     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
878 }
879
880 check_host_cflags(){
881     log check_host_cflags "$@"
882     check_host_cc "$@" <<EOF && append host_cflags "$@"
883 int x;
884 EOF
885 }
886
887 apply(){
888     file=$1
889     shift
890     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
891 }
892
893 cp_if_changed(){
894     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
895     mkdir -p "$(dirname $2)"
896     cp -f "$1" "$2"
897 }
898
899 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
900 # system-dependent things.
901
902 COMPONENT_LIST="
903     bsfs
904     decoders
905     demuxers
906     encoders
907     filters
908     hwaccels
909     indevs
910     muxers
911     outdevs
912     parsers
913     protocols
914 "
915
916 PROGRAM_LIST="
917     avconv
918     avplay
919     avprobe
920     avserver
921 "
922
923 CONFIG_LIST="
924     $COMPONENT_LIST
925     $PROGRAM_LIST
926     ac3dsp
927     avcodec
928     avdevice
929     avfilter
930     avformat
931     avresample
932     avisynth
933     bzlib
934     dct
935     doc
936     dwt
937     dxva2
938     fastdiv
939     fft
940     frei0r
941     gnutls
942     gpl
943     gray
944     hardcoded_tables
945     libcdio
946     libdc1394
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     lsp
969     mdct
970     memalign_hack
971     mpegaudiodsp
972     network
973     nonfree
974     openssl
975     pic
976     rdft
977     rtpdec
978     runtime_cpudetect
979     safe_bitstream_reader
980     shared
981     sinewin
982     small
983     sram
984     static
985     swscale
986     swscale_alpha
987     thumb
988     vaapi
989     vda
990     vdpau
991     version3
992     xmm_clobber_test
993     x11grab
994     zlib
995 "
996
997 THREADS_LIST='
998     pthreads
999     w32threads
1000 '
1001
1002 ARCH_LIST='
1003     alpha
1004     arm
1005     avr32
1006     avr32_ap
1007     avr32_uc
1008     bfin
1009     ia64
1010     m68k
1011     mips
1012     mips64
1013     parisc
1014     ppc
1015     ppc64
1016     s390
1017     sh4
1018     sparc
1019     sparc64
1020     tomi
1021     x86
1022     x86_32
1023     x86_64
1024 '
1025
1026 ARCH_EXT_LIST='
1027     altivec
1028     amd3dnow
1029     amd3dnowext
1030     armv5te
1031     armv6
1032     armv6t2
1033     armvfp
1034     avx
1035     mmi
1036     mmx
1037     mmx2
1038     neon
1039     ppc4xx
1040     sse
1041     ssse3
1042     vfpv3
1043     vis
1044 '
1045
1046 HAVE_LIST_PUB='
1047     bigendian
1048     fast_unaligned
1049 '
1050
1051 HAVE_LIST="
1052     $ARCH_EXT_LIST
1053     $HAVE_LIST_PUB
1054     $THREADS_LIST
1055     aligned_stack
1056     alsa_asoundlib_h
1057     altivec_h
1058     arpa_inet_h
1059     asm_mod_y
1060     attribute_may_alias
1061     attribute_packed
1062     closesocket
1063     cmov
1064     dcbzl
1065     dev_bktr_ioctl_bt848_h
1066     dev_bktr_ioctl_meteor_h
1067     dev_ic_bt8xx_h
1068     dev_video_bktr_ioctl_bt848_h
1069     dev_video_meteor_ioctl_meteor_h
1070     dlfcn_h
1071     dlopen
1072     dos_paths
1073     ebp_available
1074     ebx_available
1075     exp2
1076     exp2f
1077     fast_64bit
1078     fast_clz
1079     fast_cmov
1080     fcntl
1081     fork
1082     getaddrinfo
1083     gethrtime
1084     GetProcessAffinityMask
1085     GetProcessMemoryInfo
1086     GetProcessTimes
1087     getrusage
1088     gnu_as
1089     ibm_asm
1090     inet_aton
1091     inline_asm
1092     isatty
1093     ldbrx
1094     libdc1394_1
1095     libdc1394_2
1096     llrint
1097     llrintf
1098     local_aligned_16
1099     local_aligned_8
1100     localtime_r
1101     log2
1102     log2f
1103     loongson
1104     lrint
1105     lrintf
1106     machine_ioctl_bt848_h
1107     machine_ioctl_meteor_h
1108     malloc_h
1109     MapViewOfFile
1110     memalign
1111     mkstemp
1112     mmap
1113     netinet_sctp_h
1114     poll_h
1115     posix_memalign
1116     round
1117     roundf
1118     sched_getaffinity
1119     sdl
1120     sdl_video_size
1121     setmode
1122     setrlimit
1123     sndio_h
1124     socklen_t
1125     soundcard_h
1126     strerror_r
1127     strptime
1128     strtok_r
1129     struct_addrinfo
1130     struct_ipv6_mreq
1131     struct_rusage_ru_maxrss
1132     struct_sockaddr_in6
1133     struct_sockaddr_sa_len
1134     struct_sockaddr_storage
1135     struct_v4l2_frmivalenum_discrete
1136     symver
1137     symver_asm_label
1138     symver_gnu_asm
1139     sysconf
1140     sysctl
1141     sys_mman_h
1142     sys_param_h
1143     sys_resource_h
1144     sys_select_h
1145     sys_soundcard_h
1146     sys_videoio_h
1147     threads
1148     trunc
1149     truncf
1150     vfp_args
1151     VirtualAlloc
1152     winsock2_h
1153     xform_asm
1154     xmm_clobbers
1155     yasm
1156 "
1157
1158 # options emitted with CONFIG_ prefix but not available on command line
1159 CONFIG_EXTRA="
1160     aandct
1161     avutil
1162     golomb
1163     gplv3
1164     h264chroma
1165     h264dsp
1166     h264pred
1167     h264qpel
1168     huffman
1169     lgplv3
1170     lpc
1171 "
1172
1173 CMDLINE_SELECT="
1174     $ARCH_EXT_LIST
1175     $CONFIG_LIST
1176     $THREADS_LIST
1177     asm
1178     cross_compile
1179     debug
1180     extra_warnings
1181     logging
1182     optimizations
1183     symver
1184     yasm
1185 "
1186
1187 PATHS_LIST='
1188     bindir
1189     datadir
1190     incdir
1191     libdir
1192     mandir
1193     prefix
1194     shlibdir
1195 '
1196
1197 CMDLINE_SET="
1198     $PATHS_LIST
1199     ar
1200     arch
1201     as
1202     build_suffix
1203     cc
1204     cpu
1205     cross_prefix
1206     dep_cc
1207     extra_version
1208     host_cc
1209     host_cflags
1210     host_ldflags
1211     host_libs
1212     host_os
1213     ld
1214     logfile
1215     malloc_prefix
1216     nm
1217     optflags
1218     pkg_config
1219     samples
1220     sysinclude
1221     sysroot
1222     target_exec
1223     target_os
1224     target_path
1225 "
1226
1227 CMDLINE_APPEND="
1228     extra_cflags
1229 "
1230
1231 # code dependency declarations
1232
1233 # architecture extensions
1234
1235 armv5te_deps="arm"
1236 armv6_deps="arm"
1237 armv6t2_deps="arm"
1238 armvfp_deps="arm"
1239 neon_deps="arm"
1240 vfpv3_deps="armvfp"
1241
1242 mmi_deps="mips"
1243
1244 altivec_deps="ppc"
1245 ppc4xx_deps="ppc"
1246
1247 vis_deps="sparc"
1248
1249 x86_64_suggest="cmov fast_cmov"
1250 amd3dnow_deps="mmx"
1251 amd3dnowext_deps="amd3dnow"
1252 mmx_deps="x86"
1253 mmx2_deps="mmx"
1254 sse_deps="mmx"
1255 ssse3_deps="sse"
1256 avx_deps="ssse3"
1257
1258 aligned_stack_if_any="ppc x86"
1259 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1260 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1261 fast_unaligned_if_any="armv6 ppc x86"
1262
1263 inline_asm_deps="!tms470"
1264 need_memalign="altivec neon sse"
1265
1266 symver_if_any="symver_asm_label symver_gnu_asm"
1267
1268 # subsystems
1269 dct_select="rdft"
1270 mdct_select="fft"
1271 rdft_select="fft"
1272 mpegaudiodsp_select="dct"
1273
1274 # decoders / encoders / hardware accelerators
1275 aac_decoder_select="mdct sinewin"
1276 aac_encoder_select="mdct sinewin"
1277 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1278 ac3_decoder_select="mdct ac3dsp ac3_parser"
1279 ac3_encoder_select="mdct ac3dsp"
1280 ac3_fixed_encoder_select="mdct ac3dsp"
1281 alac_encoder_select="lpc"
1282 amrnb_decoder_select="lsp"
1283 amrwb_decoder_select="lsp"
1284 atrac1_decoder_select="mdct sinewin"
1285 atrac3_decoder_select="mdct"
1286 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1287 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1288 cavs_decoder_select="golomb"
1289 cook_decoder_select="mdct sinewin"
1290 cscd_decoder_suggest="zlib"
1291 dca_decoder_select="mdct"
1292 dnxhd_encoder_select="aandct"
1293 dxa_decoder_select="zlib"
1294 eac3_decoder_select="ac3_decoder"
1295 eac3_encoder_select="mdct ac3dsp"
1296 eamad_decoder_select="aandct"
1297 eatgq_decoder_select="aandct"
1298 eatqi_decoder_select="aandct"
1299 ffv1_decoder_select="golomb"
1300 flac_decoder_select="golomb"
1301 flac_encoder_select="golomb lpc"
1302 flashsv_decoder_select="zlib"
1303 flashsv_encoder_select="zlib"
1304 flashsv2_decoder_select="zlib"
1305 flv_decoder_select="h263_decoder"
1306 flv_encoder_select="h263_encoder"
1307 fraps_decoder_select="huffman"
1308 h261_encoder_select="aandct"
1309 h263_decoder_select="h263_parser"
1310 h263_encoder_select="aandct"
1311 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1312 h263i_decoder_select="h263_decoder"
1313 h263p_encoder_select="h263_encoder"
1314 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1315 h264_dxva2_hwaccel_deps="dxva2api_h"
1316 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1317 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1318 h264_vda_hwaccel_select="vda h264_decoder"
1319 h264_vdpau_decoder_select="vdpau h264_decoder"
1320 imc_decoder_select="fft mdct sinewin"
1321 jpegls_decoder_select="golomb"
1322 jpegls_encoder_select="golomb"
1323 ljpeg_encoder_select="aandct"
1324 loco_decoder_select="golomb"
1325 mjpeg_encoder_select="aandct"
1326 mlp_decoder_select="mlp_parser"
1327 mp1_decoder_select="mpegaudiodsp"
1328 mp1float_decoder_select="mpegaudiodsp"
1329 mp2_decoder_select="mpegaudiodsp"
1330 mp2float_decoder_select="mpegaudiodsp"
1331 mp3_decoder_select="mpegaudiodsp"
1332 mp3adu_decoder_select="mpegaudiodsp"
1333 mp3adufloat_decoder_select="mpegaudiodsp"
1334 mp3float_decoder_select="mpegaudiodsp"
1335 mp3on4_decoder_select="mpegaudiodsp"
1336 mp3on4float_decoder_select="mpegaudiodsp"
1337 mpc7_decoder_select="mpegaudiodsp"
1338 mpc8_decoder_select="mpegaudiodsp"
1339 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1340 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1341 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1342 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1343 mpeg1video_encoder_select="aandct"
1344 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1345 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1346 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1347 mpeg2video_encoder_select="aandct"
1348 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1349 mpeg4_encoder_select="h263_encoder"
1350 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1351 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1352 msmpeg4v1_decoder_select="h263_decoder"
1353 msmpeg4v1_encoder_select="h263_encoder"
1354 msmpeg4v2_decoder_select="h263_decoder"
1355 msmpeg4v2_encoder_select="h263_encoder"
1356 msmpeg4v3_decoder_select="h263_decoder"
1357 msmpeg4v3_encoder_select="h263_encoder"
1358 nellymoser_decoder_select="mdct sinewin"
1359 nellymoser_encoder_select="mdct sinewin"
1360 png_decoder_select="zlib"
1361 png_encoder_select="zlib"
1362 qcelp_decoder_select="lsp"
1363 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1364 ra_144_encoder_select="lpc"
1365 ralf_decoder_select="golomb"
1366 rv10_decoder_select="h263_decoder"
1367 rv10_encoder_select="h263_encoder"
1368 rv20_decoder_select="h263_decoder"
1369 rv20_encoder_select="h263_encoder"
1370 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1371 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1372 shorten_decoder_select="golomb"
1373 sipr_decoder_select="lsp"
1374 snow_decoder_select="dwt"
1375 snow_encoder_select="aandct dwt"
1376 svq1_encoder_select="aandct"
1377 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1378 svq3_decoder_suggest="zlib"
1379 theora_decoder_select="vp3_decoder"
1380 tiff_decoder_suggest="zlib"
1381 tiff_encoder_suggest="zlib"
1382 truehd_decoder_select="mlp_decoder"
1383 tscc_decoder_select="zlib"
1384 twinvq_decoder_select="mdct lsp sinewin"
1385 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1386 vc1_dxva2_hwaccel_deps="dxva2api_h"
1387 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1388 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1389 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1390 vc1image_decoder_select="vc1_decoder"
1391 vorbis_decoder_select="mdct"
1392 vorbis_encoder_select="mdct"
1393 vp6_decoder_select="huffman"
1394 vp6a_decoder_select="vp6_decoder"
1395 vp6f_decoder_select="vp6_decoder"
1396 vp8_decoder_select="h264pred h264qpel"
1397 wmapro_decoder_select="mdct sinewin"
1398 wmav1_decoder_select="mdct sinewin"
1399 wmav1_encoder_select="mdct sinewin"
1400 wmav2_decoder_select="mdct sinewin"
1401 wmav2_encoder_select="mdct sinewin"
1402 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1403 wmv1_decoder_select="h263_decoder"
1404 wmv1_encoder_select="h263_encoder"
1405 wmv2_decoder_select="h263_decoder"
1406 wmv2_encoder_select="h263_encoder"
1407 wmv3_decoder_select="vc1_decoder"
1408 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1409 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1410 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1411 wmv3image_decoder_select="wmv3_decoder"
1412 zerocodec_decoder_select="zlib"
1413 zlib_decoder_select="zlib"
1414 zlib_encoder_select="zlib"
1415 zmbv_decoder_select="zlib"
1416 zmbv_encoder_select="zlib"
1417
1418 vaapi_deps="va_va_h"
1419 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1420 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1421
1422 # parsers
1423 h264_parser_select="golomb h264dsp h264pred"
1424
1425 # external libraries
1426 libfaac_encoder_deps="libfaac"
1427 libgsm_decoder_deps="libgsm"
1428 libgsm_encoder_deps="libgsm"
1429 libgsm_ms_decoder_deps="libgsm"
1430 libgsm_ms_encoder_deps="libgsm"
1431 libmp3lame_encoder_deps="libmp3lame"
1432 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1433 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1434 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1435 libopenjpeg_decoder_deps="libopenjpeg"
1436 libschroedinger_decoder_deps="libschroedinger"
1437 libschroedinger_encoder_deps="libschroedinger"
1438 libspeex_decoder_deps="libspeex"
1439 libspeex_encoder_deps="libspeex"
1440 libtheora_encoder_deps="libtheora"
1441 libvo_aacenc_encoder_deps="libvo_aacenc"
1442 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1443 libvorbis_encoder_deps="libvorbis"
1444 libvpx_decoder_deps="libvpx"
1445 libvpx_encoder_deps="libvpx"
1446 libx264_encoder_deps="libx264"
1447 libxavs_encoder_deps="libxavs"
1448 libxvid_encoder_deps="libxvid"
1449
1450 # demuxers / muxers
1451 ac3_demuxer_select="ac3_parser"
1452 asf_stream_muxer_select="asf_muxer"
1453 avisynth_demuxer_deps="avisynth"
1454 dirac_demuxer_select="dirac_parser"
1455 eac3_demuxer_select="ac3_parser"
1456 flac_demuxer_select="flac_parser"
1457 ipod_muxer_select="mov_muxer"
1458 libnut_demuxer_deps="libnut"
1459 libnut_muxer_deps="libnut"
1460 matroska_audio_muxer_select="matroska_muxer"
1461 matroska_demuxer_suggest="zlib bzlib"
1462 mov_demuxer_suggest="zlib"
1463 mp3_demuxer_select="mpegaudio_parser"
1464 mp4_muxer_select="mov_muxer"
1465 mpegtsraw_demuxer_select="mpegts_demuxer"
1466 mxf_d10_muxer_select="mxf_muxer"
1467 ogg_demuxer_select="golomb"
1468 psp_muxer_select="mov_muxer"
1469 rtp_demuxer_select="sdp_demuxer"
1470 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1471 rtsp_demuxer_select="http_protocol rtpdec"
1472 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1473 sap_demuxer_select="sdp_demuxer"
1474 sap_muxer_select="rtp_muxer rtp_protocol"
1475 sdp_demuxer_select="rtpdec"
1476 spdif_muxer_select="aac_parser"
1477 tg2_muxer_select="mov_muxer"
1478 tgp_muxer_select="mov_muxer"
1479 w64_demuxer_deps="wav_demuxer"
1480
1481 # indevs / outdevs
1482 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1483 alsa_outdev_deps="alsa_asoundlib_h"
1484 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1485 dv1394_indev_deps="dv1394 dv_demuxer"
1486 fbdev_indev_deps="linux_fb_h"
1487 jack_indev_deps="jack_jack_h"
1488 libcdio_indev_deps="libcdio"
1489 libdc1394_indev_deps="libdc1394"
1490 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1491 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1492 pulse_indev_deps="libpulse"
1493 sndio_indev_deps="sndio_h"
1494 sndio_outdev_deps="sndio_h"
1495 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1496 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1497 vfwcap_indev_extralibs="-lavicap32"
1498 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1499
1500 # protocols
1501 gopher_protocol_deps="network"
1502 httpproxy_protocol_deps="network"
1503 httpproxy_protocol_select="tcp_protocol"
1504 http_protocol_deps="network"
1505 http_protocol_select="tcp_protocol"
1506 https_protocol_select="tls_protocol"
1507 librtmp_protocol_deps="librtmp"
1508 librtmpe_protocol_deps="librtmp"
1509 librtmps_protocol_deps="librtmp"
1510 librtmpt_protocol_deps="librtmp"
1511 librtmpte_protocol_deps="librtmp"
1512 mmsh_protocol_select="http_protocol"
1513 mmst_protocol_deps="network"
1514 rtmp_protocol_deps="!librtmp_protocol"
1515 rtmp_protocol_select="tcp_protocol"
1516 rtp_protocol_select="udp_protocol"
1517 sctp_protocol_deps="network netinet_sctp_h"
1518 tcp_protocol_deps="network"
1519 tls_protocol_deps_any="openssl gnutls"
1520 tls_protocol_select="tcp_protocol"
1521 udp_protocol_deps="network"
1522
1523 # filters
1524 blackframe_filter_deps="gpl"
1525 boxblur_filter_deps="gpl"
1526 cropdetect_filter_deps="gpl"
1527 delogo_filter_deps="gpl"
1528 drawtext_filter_deps="libfreetype"
1529 frei0r_filter_deps="frei0r dlopen strtok_r"
1530 frei0r_filter_extralibs='$ldl'
1531 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1532 frei0r_src_filter_extralibs='$ldl'
1533 hqdn3d_filter_deps="gpl"
1534 ocv_filter_deps="libopencv"
1535 yadif_filter_deps="gpl"
1536
1537 # libraries
1538 avdevice_deps="avcodec avformat"
1539 avfilter_deps="swscale"
1540 avformat_deps="avcodec"
1541
1542 # programs
1543 avconv_deps="avcodec avfilter avformat avresample swscale"
1544 avplay_deps="avcodec avformat swscale sdl"
1545 avplay_select="rdft"
1546 avprobe_deps="avcodec avformat"
1547 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1548 avserver_extralibs='$ldl'
1549
1550 doc_deps="texi2html"
1551
1552 # tests
1553
1554 test_deps(){
1555     suf1=$1
1556     suf2=$2
1557     shift 2
1558     for v; do
1559         dep=${v%=*}
1560         tests=${v#*=}
1561         for name in ${tests}; do
1562             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1563         done
1564     done
1565 }
1566
1567 mxf_d10_test_deps="avfilter"
1568 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1569
1570 test_deps _encoder _decoder                                             \
1571     adpcm_ima_qt                                                        \
1572     adpcm_ima_wav                                                       \
1573     adpcm_ms                                                            \
1574     adpcm_swf                                                           \
1575     adpcm_yamaha=adpcm_yam                                              \
1576     alac                                                                \
1577     asv1                                                                \
1578     asv2                                                                \
1579     bmp                                                                 \
1580     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1581     dvvideo="dv dv_411 dv50"                                            \
1582     ffv1                                                                \
1583     flac                                                                \
1584     flashsv                                                             \
1585     flv                                                                 \
1586     adpcm_g726=g726                                                     \
1587     gif                                                                 \
1588     h261                                                                \
1589     h263="h263 h263p"                                                   \
1590     huffyuv                                                             \
1591     jpegls                                                              \
1592     mjpeg="jpg mjpeg ljpeg"                                             \
1593     mp2                                                                 \
1594     mpeg1video="mpeg mpeg1b"                                            \
1595     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1596     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1597     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1598     mpeg4="mpeg4thread error rc"                                        \
1599     msmpeg4v3=msmpeg4                                                   \
1600     msmpeg4v2                                                           \
1601     pbm=pbmpipe                                                         \
1602     pcx                                                                 \
1603     pgm="pgm pgmpipe"                                                   \
1604     png                                                                 \
1605     ppm="ppm ppmpipe"                                                   \
1606     rawvideo="rgb yuv"                                                  \
1607     roq                                                                 \
1608     rv10                                                                \
1609     rv20                                                                \
1610     sgi                                                                 \
1611     snow="snow snowll"                                                  \
1612     svq1                                                                \
1613     targa=tga                                                           \
1614     tiff                                                                \
1615     wmav1                                                               \
1616     wmav2                                                               \
1617     wmv1                                                                \
1618     wmv2                                                                \
1619
1620 test_deps _muxer _demuxer                                               \
1621     aiff                                                                \
1622     pcm_alaw=alaw                                                       \
1623     asf                                                                 \
1624     au                                                                  \
1625     avi                                                                 \
1626     dv=dv_fmt                                                           \
1627     ffm                                                                 \
1628     flv=flv_fmt                                                         \
1629     gxf                                                                 \
1630     matroska=mkv                                                        \
1631     mmf                                                                 \
1632     mov                                                                 \
1633     pcm_mulaw=mulaw                                                     \
1634     mxf="mxf mxf_d10"                                                   \
1635     nut                                                                 \
1636     ogg                                                                 \
1637     rawvideo=pixfmt                                                     \
1638     rm                                                                  \
1639     swf                                                                 \
1640     mpegts=ts                                                           \
1641     voc                                                                 \
1642     wav                                                                 \
1643     yuv4mpegpipe=yuv4mpeg                                               \
1644
1645 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1646 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1647
1648 # default parameters
1649
1650 logfile="config.log"
1651
1652 # installation paths
1653 prefix_default="/usr/local"
1654 bindir_default='${prefix}/bin'
1655 datadir_default='${prefix}/share/avconv'
1656 incdir_default='${prefix}/include'
1657 libdir_default='${prefix}/lib'
1658 mandir_default='${prefix}/share/man'
1659 shlibdir_default="$libdir_default"
1660
1661 # toolchain
1662 ar_default="ar"
1663 cc_default="gcc"
1664 cc_version=\"unknown\"
1665 host_cc_default="gcc"
1666 ln_s="ln -sf"
1667 nm_default="nm"
1668 objformat="elf"
1669 pkg_config_default=pkg-config
1670 ranlib="ranlib"
1671 yasmexe="yasm"
1672
1673 nm_opts='-g'
1674 nogas=":"
1675
1676 # machine
1677 arch_default=$(uname -m)
1678 cpu="generic"
1679
1680 # OS
1681 target_os_default=$(tolower $(uname -s))
1682 host_os=$target_os_default
1683
1684 # configurable options
1685 enable $PROGRAM_LIST
1686
1687 enable avcodec
1688 enable avdevice
1689 enable avfilter
1690 enable avformat
1691 enable avresample
1692 enable avutil
1693 enable swscale
1694
1695 enable asm
1696 enable debug
1697 enable doc
1698 enable fastdiv
1699 enable network
1700 enable optimizations
1701 enable safe_bitstream_reader
1702 enable static
1703 enable swscale_alpha
1704
1705 # build settings
1706 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1707 AVSERVERLDFLAGS=-Wl,-E
1708 LIBPREF="lib"
1709 LIBSUF=".a"
1710 FULLNAME='$(NAME)$(BUILDSUF)'
1711 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1712 SLIBPREF="lib"
1713 SLIBSUF=".so"
1714 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1715 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1716 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1717 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1718 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1719 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1720
1721 AS_O='-o $@'
1722 CC_O='-o $@'
1723
1724 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1725 host_libs='-lm'
1726
1727 target_path='$(CURDIR)'
1728
1729 # since the object filename is not given with the -MM flag, the compiler
1730 # is only able to print the basename, and we must add the path ourselves
1731 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1732 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1733
1734 # find source path
1735 if test -f configure; then
1736     source_path=.
1737 else
1738     source_path=$(cd $(dirname "$0"); pwd)
1739     echo "$source_path" | grep -q '[[:blank:]]' &&
1740         die "Out of tree builds are impossible with whitespace in source path."
1741     test -e "$source_path/config.h" &&
1742         die "Out of tree builds are impossible with config.h in source dir."
1743 fi
1744
1745 for v in "$@"; do
1746     r=${v#*=}
1747     l=${v%"$r"}
1748     r=$(sh_quote "$r")
1749     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1750 done
1751
1752 find_things(){
1753     thing=$1
1754     pattern=$2
1755     file=$source_path/$3
1756     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1757 }
1758
1759 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1760 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1761 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1762 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1763 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1764 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1765 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1766 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1767 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1768 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1769 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1770
1771 ALL_COMPONENTS="
1772     $BSF_LIST
1773     $DECODER_LIST
1774     $DEMUXER_LIST
1775     $ENCODER_LIST
1776     $FILTER_LIST
1777     $HWACCEL_LIST
1778     $INDEV_LIST
1779     $MUXER_LIST
1780     $OUTDEV_LIST
1781     $PARSER_LIST
1782     $PROTOCOL_LIST
1783 "
1784
1785 find_tests(){
1786     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1787 }
1788
1789 ACODEC_TESTS=$(find_tests acodec)
1790 VCODEC_TESTS=$(find_tests vsynth1)
1791 LAVF_TESTS=$(find_tests lavf)
1792 LAVFI_TESTS=$(find_tests lavfi)
1793 SEEK_TESTS=$(find_tests seek seek_)
1794
1795 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1796
1797 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1798
1799 for n in $COMPONENT_LIST; do
1800     v=$(toupper ${n%s})_LIST
1801     eval enable \$$v
1802     eval ${n}_if_any="\$$v"
1803 done
1804
1805 enable $ARCH_EXT_LIST $ALL_TESTS
1806
1807 die_unknown(){
1808     echo "Unknown option \"$1\"."
1809     echo "See $0 --help for available options."
1810     exit 1
1811 }
1812
1813 show_list() {
1814     suffix=_$1
1815     shift
1816     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1817     exit 0
1818 }
1819
1820 for opt do
1821     optval="${opt#*=}"
1822     case "$opt" in
1823     --extra-ldflags=*) add_ldflags $optval
1824     ;;
1825     --extra-libs=*) add_extralibs $optval
1826     ;;
1827     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1828     ;;
1829     --enable-debug=*) debuglevel="$optval"
1830     ;;
1831     --disable-everything)
1832     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1833     ;;
1834     --enable-*=*|--disable-*=*)
1835     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1836     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1837     eval list=\$$(toupper $thing)_LIST
1838     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1839     $action $(filter "$name" $list)
1840     ;;
1841     --enable-?*|--disable-?*)
1842     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1843     if is_in $option $COMPONENT_LIST; then
1844         test $action = disable && action=unset
1845         eval $action \$$(toupper ${option%s})_LIST
1846     elif is_in $option $CMDLINE_SELECT; then
1847         $action $option
1848     else
1849         die_unknown $opt
1850     fi
1851     ;;
1852     --list-*)
1853         NAME="${opt#--list-}"
1854         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1855         NAME=${NAME%s}
1856         eval show_list $NAME \$$(toupper $NAME)_LIST
1857     ;;
1858     --help|-h) show_help
1859     ;;
1860     *)
1861     optname="${opt%%=*}"
1862     optname="${optname#--}"
1863     optname=$(echo "$optname" | sed 's/-/_/g')
1864     if is_in $optname $CMDLINE_SET; then
1865         eval $optname='$optval'
1866     elif is_in $optname $CMDLINE_APPEND; then
1867         append $optname "$optval"
1868     else
1869          die_unknown $opt
1870     fi
1871     ;;
1872     esac
1873 done
1874
1875 disabled logging && logfile=/dev/null
1876
1877 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1878 set >> $logfile
1879
1880 test -n "$cross_prefix" && enable cross_compile
1881
1882 if enabled cross_compile; then
1883     test -n "$arch" && test -n "$target_os" ||
1884         die "Must specify target arch and OS when cross-compiling"
1885 fi
1886
1887 set_default arch target_os
1888
1889 ar_default="${cross_prefix}${ar_default}"
1890 cc_default="${cross_prefix}${cc_default}"
1891 nm_default="${cross_prefix}${nm_default}"
1892 pkg_config_default="${cross_prefix}${pkg_config_default}"
1893 ranlib="${cross_prefix}${ranlib}"
1894
1895 sysinclude_default="${sysroot}/usr/include"
1896
1897 set_default cc nm pkg_config sysinclude
1898 enabled cross_compile || host_cc_default=$cc
1899 set_default host_cc
1900
1901 if ! $pkg_config --version >/dev/null 2>&1; then
1902     warn "$pkg_config not found, library detection may fail."
1903     pkg_config=false
1904 fi
1905
1906 exesuf() {
1907     case $1 in
1908         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1909     esac
1910 }
1911
1912 EXESUF=$(exesuf $target_os)
1913 HOSTEXESUF=$(exesuf $host_os)
1914
1915 # set temporary file name
1916 : ${TMPDIR:=$TEMPDIR}
1917 : ${TMPDIR:=$TMP}
1918 : ${TMPDIR:=/tmp}
1919
1920 if ! check_cmd mktemp -u XXXXXX; then
1921     # simple replacement for missing mktemp
1922     # NOT SAFE FOR GENERAL USE
1923     mktemp(){
1924         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1925     }
1926 fi
1927
1928 tmpfile(){
1929     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1930         (set -C; exec > $tmp) 2>/dev/null ||
1931         die "Unable to create temporary file in $TMPDIR."
1932     append TMPFILES $tmp
1933     eval $1=$tmp
1934 }
1935
1936 trap 'rm -f -- $TMPFILES' EXIT
1937
1938 tmpfile TMPASM .asm
1939 tmpfile TMPC   .c
1940 tmpfile TMPE   $EXESUF
1941 tmpfile TMPH   .h
1942 tmpfile TMPO   .o
1943 tmpfile TMPS   .S
1944 tmpfile TMPSH  .sh
1945 tmpfile TMPV   .ver
1946
1947 unset -f mktemp
1948
1949 chmod +x $TMPE
1950
1951 # make sure we can execute files in $TMPDIR
1952 cat > $TMPSH 2>> $logfile <<EOF
1953 #! /bin/sh
1954 EOF
1955 chmod +x $TMPSH >> $logfile 2>&1
1956 if ! $TMPSH >> $logfile 2>&1; then
1957     cat <<EOF
1958 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1959 variable to another directory and make sure that it is not mounted noexec.
1960 EOF
1961     die "Sanity test failed."
1962 fi
1963
1964 filter_asflags=echo
1965 filter_cflags=echo
1966 filter_cppflags=echo
1967
1968 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1969     cc_type=llvm_gcc
1970     cc_version=__VERSION__
1971     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1972     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1973     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1974     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1975     speed_cflags='-O3'
1976     size_cflags='-Os'
1977 elif $cc -v 2>&1 | grep -qi ^gcc; then
1978     cc_type=gcc
1979     cc_version=__VERSION__
1980     gcc_version=$($cc --version | head -n1)
1981     gcc_basever=$($cc -dumpversion)
1982     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1983     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1984     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1985     if ! $cc -dumpversion | grep -q '^2\.'; then
1986         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1987         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1988     fi
1989     speed_cflags='-O3'
1990     size_cflags='-Os'
1991 elif $cc --version 2>/dev/null | grep -q Intel; then
1992     cc_type=icc
1993     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1994     cc_ident=$($cc --version | head -n1)
1995     icc_version=$($cc -dumpversion)
1996     CC_DEPFLAGS='-MMD'
1997     AS_DEPFLAGS='-MMD'
1998     speed_cflags='-O3'
1999     size_cflags='-Os'
2000     noopt_cflags='-O1'
2001 elif $cc -v 2>&1 | grep -q xlc; then
2002     cc_type=xlc
2003     cc_version="AV_STRINGIFY(__IBMC__)"
2004     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2005     speed_cflags='-O5'
2006     size_cflags='-O5 -qcompact'
2007 elif $cc -V 2>/dev/null | grep -q Compaq; then
2008     cc_type=ccc
2009     cc_version="AV_STRINGIFY(__DECC_VER)"
2010     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2011     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2012     debuglevel=3
2013     add_ldflags -Wl,-z,now # calls to libots crash without this
2014     speed_cflags='-fast'
2015     size_cflags='-O1'
2016 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2017     test -d "$sysroot" || die "No valid sysroot specified."
2018     cc_type=armcc
2019     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2020     cc_ident=$($cc --vsn | head -n1)
2021     armcc_conf="$PWD/armcc.conf"
2022     $cc --arm_linux_configure                 \
2023         --arm_linux_config_file="$armcc_conf" \
2024         --configure_sysroot="$sysroot"        \
2025         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2026         die "Error creating armcc configuration file."
2027     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2028     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2029     as_default="${cross_prefix}gcc"
2030     CC_DEPFLAGS='-MMD'
2031     AS_DEPFLAGS='-MMD'
2032     speed_cflags='-O3'
2033     size_cflags='-Os'
2034     filter_asflags="filter_out -W${armcc_opt}*"
2035 elif $cc -version 2>/dev/null | grep -q TMS470; then
2036     cc_type=tms470
2037     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2038     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2039     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2040     CC_O='-fr=$(@D)'
2041     as_default="${cross_prefix}gcc"
2042     ld_default="${cross_prefix}gcc"
2043     TMPO=$(basename $TMPC .c).o
2044     append TMPFILES $TMPO
2045     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2046     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2047     AS_DEPFLAGS='-MMD'
2048     speed_cflags='-O3 -mf=5'
2049     size_cflags='-O3 -mf=2'
2050     filter_cflags=tms470_flags
2051     tms470_flags(){
2052         for flag; do
2053             case $flag in
2054                 -march=*|-mcpu=*)
2055                     case "${flag#*=}" in
2056                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2057                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2058                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2059                         armv6*|arm11*)          echo -mv=6   ;;
2060                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2061                                                 echo -mv=5e  ;;
2062                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2063                     esac
2064                     ;;
2065                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2066                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2067                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2068                 -msoft-float)   echo --float_support=vfplib       ;;
2069                 -O[0-3]|-mf=*)  echo $flag                        ;;
2070                 -g)             echo -g -mn                       ;;
2071                 -pds=*)         echo $flag                        ;;
2072             esac
2073         done
2074     }
2075 elif $cc -v 2>&1 | grep -q clang; then
2076     cc_type=clang
2077     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2078         cc_version=__clang_version__ || cc_version=__VERSION__
2079     cc_ident=$($cc --version | head -n1)
2080     CC_DEPFLAGS='-MMD'
2081     AS_DEPFLAGS='-MMD'
2082     speed_cflags='-O3'
2083     size_cflags='-Os'
2084 elif $cc -V 2>&1 | grep -q Sun; then
2085     cc_type=suncc
2086     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2087     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2088     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2089     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2090     add_ldflags -xc99
2091     speed_cflags='-O5'
2092     size_cflags='-O5 -xspace'
2093     filter_cflags=suncc_flags
2094     suncc_flags(){
2095         for flag; do
2096             case $flag in
2097                 -march=*|-mcpu=*)
2098                     case "${flag#*=}" in
2099                         native)                   echo -xtarget=native       ;;
2100                         v9|niagara)               echo -xarch=sparc          ;;
2101                         ultrasparc)               echo -xarch=sparcvis       ;;
2102                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2103                         i586|pentium)             echo -xchip=pentium        ;;
2104                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2105                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2106                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2107                         pentium4*)          echo -xtarget=pentium4           ;;
2108                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2109                         *-sse3)             echo -xarch=sse3                 ;;
2110                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2111                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2112                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2113                         k8|opteron|athlon64|athlon-fx)
2114                                                   echo -xarch=sse2a          ;;
2115                         athlon*)                  echo -xarch=pentium_proa   ;;
2116                     esac
2117                     ;;
2118                 -std=c99)             echo -xc99              ;;
2119                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2120                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2121                 -W*,*)                echo $flag              ;;
2122                 -f*-*|-W*)                                    ;;
2123                 *)                    echo $flag              ;;
2124             esac
2125         done
2126     }
2127 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2128     cc_type=pathscale
2129     cc_version=__PATHSCALE__
2130     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2131     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2132     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2133     speed_cflags='-O2'
2134     size_cflags='-Os'
2135     filter_cflags='filter_out -Wdisabled-optimization'
2136 elif $cc -v 2>&1 | grep -q Open64; then
2137     cc_type=open64
2138     cc_version=__OPEN64__
2139     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2140     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2141     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2142     speed_cflags='-O2'
2143     size_cflags='-Os'
2144     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2145 elif $cc -V 2>&1 | grep -q Portland; then
2146     cc_type=pgi
2147     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2148     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2149     opt_common='-alias=ansi -Mlre -Mpre'
2150     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2151     size_cflags="-O2 -Munroll=c:1 $opt_common"
2152     noopt_cflags="-O1"
2153     filter_cflags=pgi_flags
2154     pgi_flags(){
2155         for flag; do
2156             case $flag in
2157                 -fomit-frame-pointer) echo -Mnoframe ;;
2158                 -g)                   echo -gopt ;;
2159                 *)                    echo $flag ;;
2160             esac
2161         done
2162     }
2163 fi
2164
2165 test -n "$cc_type" && enable $cc_type ||
2166     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2167
2168 : ${as_default:=$cc}
2169 : ${dep_cc_default:=$cc}
2170 : ${ld_default:=$cc}
2171 set_default ar as dep_cc ld
2172
2173 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2174 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2175
2176 add_cflags $extra_cflags
2177 add_asflags $extra_cflags
2178
2179 if test -n "$sysroot"; then
2180     case "$cc_type" in
2181         gcc|llvm_gcc|clang)
2182             add_cppflags --sysroot="$sysroot"
2183             add_ldflags --sysroot="$sysroot"
2184         ;;
2185         tms470)
2186             add_cppflags -I"$sysinclude"
2187             add_ldflags  --sysroot="$sysroot"
2188         ;;
2189     esac
2190 fi
2191
2192 if test "$cpu" = host; then
2193     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2194
2195     case "$cc_type" in
2196         gcc|llvm_gcc)
2197             check_native(){
2198                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2199                 sed -n "/cc1.*$1=/{
2200                             s/.*$1=\\([^ ]*\\).*/\\1/
2201                             p
2202                             q
2203                         }" $TMPE
2204             }
2205             cpu=$(check_native -march || check_native -mcpu)
2206         ;;
2207     esac
2208
2209     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2210 fi
2211
2212 # Deal with common $arch aliases
2213 case "$arch" in
2214     arm*)
2215         arch="arm"
2216     ;;
2217     mips|mipsel|IP*)
2218         arch="mips"
2219     ;;
2220     mips64*)
2221         arch="mips"
2222         subarch="mips64"
2223     ;;
2224     parisc|hppa)
2225         arch="parisc"
2226     ;;
2227     parisc64|hppa64)
2228         arch="parisc"
2229         subarch="parisc64"
2230     ;;
2231     "Power Macintosh"|ppc|powerpc)
2232         arch="ppc"
2233     ;;
2234     ppc64|powerpc64)
2235         arch="ppc"
2236         subarch="ppc64"
2237     ;;
2238     s390|s390x)
2239         arch="s390"
2240     ;;
2241     sh4|sh)
2242         arch="sh4"
2243     ;;
2244     sun4u|sparc64)
2245         arch="sparc"
2246         subarch="sparc64"
2247     ;;
2248     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2249         arch="x86"
2250     ;;
2251 esac
2252
2253 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2254 enable $arch
2255
2256 # Add processor-specific flags
2257 if test "$cpu" = generic; then
2258     : do nothing
2259 elif enabled ppc; then
2260
2261     case $(tolower $cpu) in
2262         601|ppc601|powerpc601)
2263             cpuflags="-mcpu=601"
2264             disable altivec
2265         ;;
2266         603*|ppc603*|powerpc603*)
2267             cpuflags="-mcpu=603"
2268             disable altivec
2269         ;;
2270         604*|ppc604*|powerpc604*)
2271             cpuflags="-mcpu=604"
2272             disable altivec
2273         ;;
2274         g3|75*|ppc75*|powerpc75*)
2275             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2276             disable altivec
2277         ;;
2278         g4|745*|ppc745*|powerpc745*)
2279             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2280         ;;
2281         74*|ppc74*|powerpc74*)
2282             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2283         ;;
2284         g5|970|ppc970|powerpc970)
2285             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2286         ;;
2287         power[3-7]*)
2288             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2289         ;;
2290         cell)
2291             cpuflags="-mcpu=cell"
2292             enable ldbrx
2293         ;;
2294         e500v2)
2295             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2296             disable altivec
2297         ;;
2298         e500)
2299             cpuflags="-mcpu=8540 -mhard-float"
2300             disable altivec
2301         ;;
2302     esac
2303
2304 elif enabled x86; then
2305
2306     case $cpu in
2307         i[345]86|pentium)
2308             cpuflags="-march=$cpu"
2309             disable mmx
2310         ;;
2311         # targets that do NOT support conditional mov (cmov)
2312         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2313             cpuflags="-march=$cpu"
2314             disable cmov
2315         ;;
2316         # targets that do support conditional mov (cmov)
2317         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2318             cpuflags="-march=$cpu"
2319             enable cmov
2320             enable fast_cmov
2321         ;;
2322         # targets that do support conditional mov but on which it's slow
2323         pentium4|pentium4m|prescott|nocona)
2324             cpuflags="-march=$cpu"
2325             enable cmov
2326             disable fast_cmov
2327         ;;
2328     esac
2329
2330 elif enabled sparc; then
2331
2332     case $cpu in
2333         niagara)
2334             cpuflags="-mcpu=$cpu"
2335             disable vis
2336         ;;
2337         sparc64)
2338             cpuflags="-mcpu=v9"
2339         ;;
2340     esac
2341
2342 elif enabled arm; then
2343
2344     case $cpu in
2345         armv*)
2346             cpuflags="-march=$cpu"
2347             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2348         ;;
2349         *)
2350             cpuflags="-mcpu=$cpu"
2351             case $cpu in
2352                 cortex-a*)                               subarch=armv7a  ;;
2353                 cortex-r*)                               subarch=armv7r  ;;
2354                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2355                 arm11*)                                  subarch=armv6   ;;
2356                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2357                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2358             esac
2359         ;;
2360     esac
2361
2362 elif enabled alpha; then
2363
2364     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2365
2366 elif enabled bfin; then
2367
2368     cpuflags="-mcpu=$cpu"
2369
2370 elif enabled mips; then
2371
2372     cpuflags="-march=$cpu"
2373
2374 elif enabled avr32; then
2375
2376     case $cpu in
2377         ap7[02]0[0-2])
2378             subarch="avr32_ap"
2379             cpuflags="-mpart=$cpu"
2380         ;;
2381         ap)
2382             subarch="avr32_ap"
2383             cpuflags="-march=$cpu"
2384         ;;
2385         uc3[ab]*)
2386             subarch="avr32_uc"
2387             cpuflags="-mcpu=$cpu"
2388         ;;
2389         uc)
2390             subarch="avr32_uc"
2391             cpuflags="-march=$cpu"
2392         ;;
2393     esac
2394
2395 fi
2396
2397 add_cflags $cpuflags
2398 add_asflags $cpuflags
2399
2400 # compiler sanity check
2401 check_exec <<EOF
2402 int main(void){ return 0; }
2403 EOF
2404 if test "$?" != 0; then
2405     echo "$cc is unable to create an executable file."
2406     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2407         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2408         echo "Only do this if you know what cross compiling means."
2409     fi
2410     die "C compiler test failed."
2411 fi
2412
2413 add_cppflags -D_ISOC99_SOURCE
2414 check_cflags -std=c99
2415 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2416 #include <stdlib.h>
2417 EOF
2418 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2419 #include <stdlib.h>
2420 EOF
2421
2422 check_host_cflags -std=c99
2423 check_host_cflags -Wall
2424
2425 case "$arch" in
2426     alpha|ia64|mips|parisc|sparc)
2427         spic=$shared
2428     ;;
2429     x86)
2430         subarch="x86_32"
2431         check_cc <<EOF && subarch="x86_64"
2432         int test[(int)sizeof(char*) - 7];
2433 EOF
2434         if test "$subarch" = "x86_64"; then
2435             spic=$shared
2436         fi
2437     ;;
2438 esac
2439
2440 enable $subarch
2441 enabled spic && enable pic
2442
2443 # OS specific
2444 case $target_os in
2445     haiku)
2446         prefix_default="/boot/common"
2447         network_extralibs="-lnetwork"
2448         host_libs=
2449         ;;
2450     sunos)
2451         AVSERVERLDFLAGS=""
2452         SHFLAGS='-shared -Wl,-h,$$(@F)'
2453         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2454         network_extralibs="-lsocket -lnsl"
2455         add_cppflags -D__EXTENSIONS__
2456         # When using suncc to build, the Solaris linker will mark
2457         # an executable with each instruction set encountered by
2458         # the Solaris assembler.  As our libraries contain their own
2459         # guards for processor-specific code, instead suppress
2460         # generation of the HWCAPS ELF section on Solaris x86 only.
2461         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2462         nm_opts='-P -g'
2463         ;;
2464     netbsd)
2465         disable symver
2466         oss_indev_extralibs="-lossaudio"
2467         oss_outdev_extralibs="-lossaudio"
2468         ;;
2469     openbsd)
2470         # On OpenBSD 4.5. the compiler does not use PIC unless
2471         # explicitly using -fPIC. Libav builds fine without PIC,
2472         # however the generated executable will not do anything
2473         # (simply quits with exit-code 1, no crash, no output).
2474         # Thus explicitly enable PIC here.
2475         enable pic
2476         disable symver
2477         SHFLAGS='-shared'
2478         oss_indev_extralibs="-lossaudio"
2479         oss_outdev_extralibs="-lossaudio"
2480         ;;
2481     dragonfly)
2482         disable symver
2483         ;;
2484     freebsd)
2485         ;;
2486     bsd/os)
2487         add_extralibs -lpoll -lgnugetopt
2488         ;;
2489     darwin)
2490         gas="gas-preprocessor.pl $cc"
2491         enabled ppc && add_asflags -force_cpusubtype_ALL
2492         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2493         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2494         add_ldflags -Wl,-dynamic,-search_paths_first
2495         SLIBSUF=".dylib"
2496         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2497         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2498         AVSERVERLDFLAGS=-Wl,-bind_at_load
2499         objformat="macho"
2500         enabled x86_64 && objformat="macho64"
2501         enabled_any pic shared ||
2502             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2503         ;;
2504     mingw32*)
2505         if test $target_os = "mingw32ce"; then
2506             disable network
2507         else
2508             target_os=mingw32
2509         fi
2510         LIBTARGET=i386
2511         if enabled x86_64; then
2512             LIBTARGET="i386:x86-64"
2513         elif enabled arm; then
2514             LIBTARGET=arm-wince
2515         fi
2516         shlibdir_default="$bindir_default"
2517         SLIBPREF=""
2518         SLIBSUF=".dll"
2519         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2520         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2521         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2522         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2523         SLIB_INSTALL_LINKS=
2524         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2525         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2526         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'
2527         objformat="win32"
2528         dlltool="${cross_prefix}dlltool"
2529         enable dos_paths
2530         check_cflags -fno-common
2531         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2532                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2533                 die "ERROR: MinGW runtime version must be >= 3.15."
2534         add_cppflags -U__STRICT_ANSI__
2535         ;;
2536     cygwin*)
2537         target_os=cygwin
2538         shlibdir_default="$bindir_default"
2539         SLIBPREF="cyg"
2540         SLIBSUF=".dll"
2541         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2542         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2543         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2544         objformat="win32"
2545         enable dos_paths
2546         check_cflags -fno-common
2547         add_cppflags -U__STRICT_ANSI__
2548         ;;
2549     *-dos|freedos|opendos)
2550         network_extralibs="-lsocket"
2551         objformat="coff"
2552         enable dos_paths
2553         add_cppflags -U__STRICT_ANSI__
2554         ;;
2555     linux)
2556         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2557         enable dv1394
2558         ;;
2559     irix*)
2560         target_os=irix
2561         ranlib="echo ignoring ranlib"
2562         ;;
2563     os/2*)
2564         ln_s="cp -f"
2565         objformat="aout"
2566         add_cppflags -D_GNU_SOURCE
2567         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2568         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2569         AVSERVERLDFLAGS=""
2570         LIBSUF="_s.a"
2571         SLIBPREF=""
2572         SLIBSUF=".dll"
2573         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2574         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2575         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2576           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2577           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2578           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2579           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2580           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2581         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2582           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2583         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2584         enable dos_paths
2585         ;;
2586     gnu/kfreebsd)
2587         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2588         ;;
2589     gnu)
2590         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2591         ;;
2592     qnx)
2593         add_cppflags -D_QNX_SOURCE
2594         network_extralibs="-lsocket"
2595         ;;
2596     symbian)
2597         SLIBSUF=".dll"
2598         enable dos_paths
2599         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2600         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2601         add_ldflags -Wl,--target1-abs,--no-undefined \
2602                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2603                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2604         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2605                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2606                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2607         ;;
2608     none)
2609         ;;
2610     *)
2611         die "Unknown OS '$target_os'."
2612         ;;
2613 esac
2614
2615 esc(){
2616     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2617 }
2618
2619 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2620
2621 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2622
2623 set_default $PATHS_LIST
2624
2625 # we need to build at least one lib type
2626 if ! enabled_any static shared; then
2627     cat <<EOF
2628 At least one library type must be built.
2629 Specify --enable-static to build the static libraries or --enable-shared to
2630 build the shared libraries as well. To only build the shared libraries specify
2631 --disable-static in addition to --enable-shared.
2632 EOF
2633     exit 1;
2634 fi
2635
2636 die_license_disabled() {
2637     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2638 }
2639
2640 die_license_disabled gpl libcdio
2641 die_license_disabled gpl libx264
2642 die_license_disabled gpl libxavs
2643 die_license_disabled gpl libxvid
2644 die_license_disabled gpl x11grab
2645
2646 die_license_disabled nonfree libfaac
2647 die_license_disabled nonfree openssl
2648
2649 die_license_disabled version3 libopencore_amrnb
2650 die_license_disabled version3 libopencore_amrwb
2651 die_license_disabled version3 libvo_aacenc
2652 die_license_disabled version3 libvo_amrwbenc
2653
2654 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2655
2656 disabled optimizations || check_cflags -fomit-frame-pointer
2657
2658 enable_pic() {
2659     enable pic
2660     add_cppflags -DPIC
2661     add_cflags   -fPIC
2662     add_asflags  -fPIC
2663 }
2664
2665 enabled pic && enable_pic
2666
2667 check_cc <<EOF || die "Symbol mangling check failed."
2668 int ff_extern;
2669 EOF
2670 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2671 extern_prefix=${sym%%ff_extern*}
2672
2673 check_cc <<EOF && enable inline_asm
2674 void foo(void) { __asm__ volatile ("" ::); }
2675 EOF
2676
2677 _restrict=
2678 for restrict_keyword in restrict __restrict__ __restrict; do
2679     check_cc <<EOF && _restrict=$restrict_keyword && break
2680 void foo(char * $restrict_keyword p);
2681 EOF
2682 done
2683
2684 check_cc <<EOF && enable attribute_packed
2685 struct { int x; } __attribute__((packed)) x;
2686 EOF
2687
2688 check_cc <<EOF && enable attribute_may_alias
2689 union { int x; } __attribute__((may_alias)) x;
2690 EOF
2691
2692 check_cc <<EOF || die "endian test failed"
2693 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2694 EOF
2695 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2696
2697 if enabled alpha; then
2698
2699     check_cflags -mieee
2700
2701 elif enabled arm; then
2702
2703     enabled thumb && check_cflags -mthumb || check_cflags -marm
2704     nogas=die
2705
2706     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2707         enable vfp_args
2708     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2709         case "${cross_prefix:-$cc}" in
2710             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2711             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2712 __asm__ (".eabi_attribute 28, 1");
2713 int main(void) { return 0; }
2714 EOF
2715         esac
2716         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2717     fi
2718
2719     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2720     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2721     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2722     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2723     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2724     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2725
2726     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2727
2728     enabled_all armv6t2 shared !pic && enable_pic
2729
2730 elif enabled mips; then
2731
2732     check_asm loongson '"dmult.g $1, $2, $3"'
2733     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2734
2735 elif enabled ppc; then
2736
2737     enable local_aligned_8 local_aligned_16
2738
2739     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2740     check_asm ibm_asm   '"add 0, 0, 0"'
2741     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2742     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2743
2744     # AltiVec flags: The FSF version of GCC differs from the Apple version
2745     if enabled altivec; then
2746         nogas=warn
2747         check_cflags -maltivec -mabi=altivec &&
2748         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2749         check_cflags -faltivec
2750
2751         # check if our compiler supports Motorola AltiVec C API
2752         check_cc <<EOF || disable altivec
2753 $inc_altivec_h
2754 int main(void) {
2755     vector signed int v1, v2, v3;
2756     v1 = vec_add(v2,v3);
2757     return 0;
2758 }
2759 EOF
2760
2761         # check if our compiler supports braces for vector declarations
2762         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2763 $inc_altivec_h
2764 int main (void) { (vector int) {1}; return 0; }
2765 EOF
2766     fi
2767
2768 elif enabled sparc; then
2769
2770     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2771         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2772
2773 elif enabled x86; then
2774
2775     enable local_aligned_8 local_aligned_16
2776
2777     # check whether EBP is available on x86
2778     # As 'i' is stored on the stack, this program will crash
2779     # if the base pointer is used to access it because the
2780     # base pointer is cleared in the inline assembly code.
2781     check_exec_crash <<EOF && enable ebp_available
2782     volatile int i=0;
2783     __asm__ volatile (
2784         "xorl %%ebp, %%ebp"
2785     ::: "%ebp");
2786     return i;
2787 EOF
2788
2789     # check whether EBX is available on x86
2790     check_asm ebx_available '""::"b"(0)' &&
2791         check_asm ebx_available '"":::"%ebx"'
2792
2793     # check whether xmm clobbers are supported
2794     check_asm xmm_clobbers '"":::"%xmm0"'
2795
2796     # check whether binutils is new enough to compile SSSE3/MMX2
2797     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2798     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2799
2800     if ! disabled_any asm mmx yasm; then
2801         if check_cmd $yasmexe --version; then
2802             enabled x86_64 && yasm_extra="-m amd64"
2803             yasm_debug="-g dwarf2"
2804         elif check_cmd nasm -v; then
2805             yasmexe=nasm
2806             yasm_debug="-g -F dwarf"
2807             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2808         fi
2809
2810         YASMFLAGS="-f $objformat $yasm_extra"
2811         enabled pic               && append YASMFLAGS "-DPIC"
2812         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2813         case "$objformat" in
2814             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2815         esac
2816
2817         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2818             die "yasm not found, use --disable-yasm for a crippled build"
2819         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2820     fi
2821
2822     case "$cpu" in
2823         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2824             disable fast_clz
2825         ;;
2826     esac
2827
2828 fi
2829
2830 if enabled asm; then
2831     as=${gas:=$as}
2832     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2833         $nogas "GNU assembler not found, install gas-preprocessor"
2834 fi
2835
2836 check_ldflags -Wl,--as-needed
2837
2838 if check_func dlopen; then
2839     ldl=
2840 elif check_func dlopen -ldl; then
2841     ldl=-ldl
2842 fi
2843
2844 if enabled network; then
2845     check_type "sys/types.h sys/socket.h" socklen_t
2846     check_type netdb.h "struct addrinfo"
2847     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2848     check_type netinet/in.h "struct sockaddr_in6"
2849     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2850     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2851     check_header netinet/sctp.h
2852     # Prefer arpa/inet.h over winsock2
2853     if check_header arpa/inet.h ; then
2854         check_func closesocket
2855     elif check_header winsock2.h ; then
2856         check_func_headers winsock2.h closesocket -lws2 && \
2857             network_extralibs="-lws2" || \
2858         { check_func_headers winsock2.h closesocket -lws2_32 && \
2859             network_extralibs="-lws2_32"; }
2860         check_type ws2tcpip.h socklen_t
2861         check_type ws2tcpip.h "struct addrinfo"
2862         check_type ws2tcpip.h "struct ipv6_mreq"
2863         check_type ws2tcpip.h "struct sockaddr_in6"
2864         check_type ws2tcpip.h "struct sockaddr_storage"
2865         check_struct winsock2.h "struct sockaddr" sa_len
2866     else
2867         disable network
2868     fi
2869 fi
2870
2871 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2872 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2873
2874 check_func  fcntl
2875 check_func  fork
2876 check_func  getaddrinfo $network_extralibs
2877 check_func  gethrtime
2878 check_func  getrusage
2879 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2880 check_func  inet_aton $network_extralibs
2881 check_func  isatty
2882 check_func  localtime_r
2883 check_func  ${malloc_prefix}memalign            && enable memalign
2884 check_func  mkstemp
2885 check_func  mmap
2886 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2887 check_func  setrlimit
2888 check_func  strerror_r
2889 check_func  strptime
2890 check_func  strtok_r
2891 check_func  sched_getaffinity
2892 check_func  sysconf
2893 check_func  sysctl
2894 check_func_headers io.h setmode
2895 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2896 check_func_headers windows.h GetProcessAffinityMask
2897 check_func_headers windows.h GetProcessTimes
2898 check_func_headers windows.h MapViewOfFile
2899 check_func_headers windows.h VirtualAlloc
2900
2901 check_header dlfcn.h
2902 check_header dxva2api.h
2903 check_header malloc.h
2904 check_header poll.h
2905 check_header sys/mman.h
2906 check_header sys/param.h
2907 check_header sys/resource.h
2908 check_header sys/select.h
2909 check_header vdpau/vdpau.h
2910 check_header vdpau/vdpau_x11.h
2911 check_header X11/extensions/XvMClib.h
2912
2913 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2914 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2915
2916 if ! disabled w32threads && ! enabled pthreads; then
2917     check_func _beginthreadex && enable w32threads
2918 fi
2919
2920 # check for some common methods of building with pthread support
2921 # do this before the optional library checks as some of them require pthreads
2922 if ! disabled pthreads && ! enabled w32threads; then
2923     enable pthreads
2924     if check_func pthread_create; then
2925         :
2926     elif check_func pthread_create -pthread; then
2927         add_cflags -pthread
2928         add_extralibs -pthread
2929     elif check_func pthread_create -pthreads; then
2930         add_cflags -pthreads
2931         add_extralibs -pthreads
2932     elif check_func pthread_create -lpthreadGC2; then
2933         add_extralibs -lpthreadGC2
2934     elif ! check_lib pthread.h pthread_create -lpthread; then
2935         disable pthreads
2936     fi
2937 fi
2938
2939 for thread in $THREADS_LIST; do
2940     if enabled $thread; then
2941         test -n "$thread_type" &&
2942             die "ERROR: Only one thread type must be selected." ||
2943             thread_type="$thread"
2944     fi
2945 done
2946
2947 check_lib math.h sin -lm && LIBM="-lm"
2948 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2949
2950 check_mathfunc exp2
2951 check_mathfunc exp2f
2952 check_mathfunc llrint
2953 check_mathfunc llrintf
2954 check_mathfunc log2
2955 check_mathfunc log2f
2956 check_mathfunc lrint
2957 check_mathfunc lrintf
2958 check_mathfunc round
2959 check_mathfunc roundf
2960 check_mathfunc trunc
2961 check_mathfunc truncf
2962
2963 # these are off by default, so fail if requested and not available
2964 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2965 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2966 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2967 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2968 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2969 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2970 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2971 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2972 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2973 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2974 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2975 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2976 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2977 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2978 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2979 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2980 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2981 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2982 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2983 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2984 enabled libvpx     && {
2985     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2986                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2987     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2988                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2989 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2990                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2991                         die "ERROR: libx264 version must be >= 0.118."; }
2992 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2993 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2994 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2995                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2996                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2997                         die "ERROR: openssl not found"; }
2998
2999 # libdc1394 check
3000 if enabled libdc1394; then
3001     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3002         enable libdc1394_2; } ||
3003     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3004         enable libdc1394_1; } ||
3005     die "ERROR: No version of libdc1394 found "
3006 fi
3007
3008 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3009     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3010     enable sdl &&
3011     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3012 fi
3013
3014 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3015
3016 check_header linux/fb.h
3017 check_header linux/videodev2.h
3018 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3019
3020 check_header sys/videoio.h
3021
3022 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3023 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3024 # w32api 3.12 had it defined wrong
3025 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3026
3027 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3028 { check_header dev/bktr/ioctl_meteor.h &&
3029   check_header dev/bktr/ioctl_bt848.h; } ||
3030 { check_header machine/ioctl_meteor.h &&
3031   check_header machine/ioctl_bt848.h; } ||
3032 { check_header dev/video/meteor/ioctl_meteor.h &&
3033   check_header dev/video/bktr/ioctl_bt848.h; } ||
3034 check_header dev/ic/bt8xx.h
3035
3036 check_header sndio.h
3037 check_header sys/soundcard.h
3038 check_header soundcard.h
3039
3040 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3041
3042 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3043
3044 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3045
3046 enabled libcdio &&
3047     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3048
3049 enabled x11grab                                           &&
3050 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3051 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3052 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3053
3054 # check for VDA header
3055 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3056     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3057 fi
3058
3059 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3060 check_cpp_condition \
3061     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3062     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3063       disable vdpau; }
3064 fi
3065
3066 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3067
3068 # add some useful compiler flags if supported
3069 check_cflags -Wdeclaration-after-statement
3070 check_cflags -Wall
3071 check_cflags -Wno-parentheses
3072 check_cflags -Wno-switch
3073 check_cflags -Wno-format-zero-length
3074 check_cflags -Wdisabled-optimization
3075 check_cflags -Wpointer-arith
3076 check_cflags -Wredundant-decls
3077 check_cflags -Wno-pointer-sign
3078 check_cflags -Wcast-qual
3079 check_cflags -Wwrite-strings
3080 check_cflags -Wtype-limits
3081 check_cflags -Wundef
3082 check_cflags -Wmissing-prototypes
3083 check_cflags -Wstrict-prototypes
3084 enabled extra_warnings && check_cflags -Winline
3085
3086 # add some linker flags
3087 check_ldflags -Wl,--warn-common
3088 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3089 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3090
3091 enabled xmm_clobber_test &&                             \
3092     check_ldflags -Wl,--wrap,avcodec_open2              \
3093                   -Wl,--wrap,avcodec_decode_audio4      \
3094                   -Wl,--wrap,avcodec_decode_video2      \
3095                   -Wl,--wrap,avcodec_decode_subtitle2   \
3096                   -Wl,--wrap,avcodec_encode_audio2      \
3097                   -Wl,--wrap,avcodec_encode_video       \
3098                   -Wl,--wrap,avcodec_encode_subtitle    \
3099                   -Wl,--wrap,sws_scale ||               \
3100     disable xmm_clobber_test
3101
3102 echo "X{};" > $TMPV
3103 if test_ldflags -Wl,--version-script,$TMPV; then
3104     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3105     check_cc <<EOF && enable symver_asm_label
3106 void ff_foo(void) __asm__ ("av_foo@VERSION");
3107 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3108 EOF
3109     check_cc <<EOF && enable symver_gnu_asm
3110 __asm__(".symver ff_foo,av_foo@VERSION");
3111 void ff_foo(void) {}
3112 EOF
3113 fi
3114
3115 if [ -n "$optflags" ]; then
3116     add_cflags $optflags
3117 elif enabled small; then
3118     add_cflags $size_cflags
3119 elif enabled optimizations; then
3120     add_cflags $speed_cflags
3121 else
3122     add_cflags $noopt_cflags
3123 fi
3124 check_cflags -fno-math-errno
3125 check_cflags -fno-signed-zeros
3126
3127 if enabled icc; then
3128     # Just warnings, no remarks
3129     check_cflags -w1
3130     # -wd: Disable following warnings
3131     # 144, 167, 556: -Wno-pointer-sign
3132     # 1292: attribute "foo" ignored
3133     # 1419: external declaration in primary source file
3134     # 10006: ignoring unknown option -fno-signed-zeros
3135     # 10148: ignoring unknown option -Wno-parentheses
3136     # 10156: ignoring option '-W'; no argument required
3137     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3138     # 11030: Warning unknown option --as-needed
3139     # 10156: ignoring option '-export'; no argument required
3140     check_ldflags -wd10156,11030
3141     # Allow to compile with optimizations
3142     check_ldflags -march=$cpu
3143     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3144     enable ebp_available
3145     if enabled x86_32; then
3146         test ${icc_version%%.*} -ge 11 && \
3147             check_cflags -falign-stack=maintain-16-byte || \
3148             disable aligned_stack
3149     fi
3150 elif enabled ccc; then
3151     # disable some annoying warnings
3152     add_cflags -msg_disable cvtu32to64
3153     add_cflags -msg_disable embedcomment
3154     add_cflags -msg_disable needconstext
3155     add_cflags -msg_disable nomainieee
3156     add_cflags -msg_disable ptrmismatch1
3157     add_cflags -msg_disable unreachcode
3158 elif enabled gcc; then
3159     check_cflags -fno-tree-vectorize
3160     check_cflags -Werror=implicit-function-declaration
3161     check_cflags -Werror=missing-prototypes
3162     check_cflags -Werror=declaration-after-statement
3163 elif enabled llvm_gcc; then
3164     check_cflags -mllvm -stack-alignment=16
3165 elif enabled clang; then
3166     check_cflags -mllvm -stack-alignment=16
3167     check_cflags -Qunused-arguments
3168 elif enabled armcc; then
3169     # 2523: use of inline assembler is deprecated
3170     add_cflags -W${armcc_opt},--diag_suppress=2523
3171     add_cflags -W${armcc_opt},--diag_suppress=1207
3172     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3173     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3174     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3175     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3176 elif enabled tms470; then
3177     add_cflags -pds=824 -pds=837
3178 elif enabled pathscale; then
3179     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3180 fi
3181
3182 enabled_any $THREADS_LIST      && enable threads
3183
3184 check_deps $CONFIG_LIST       \
3185            $CONFIG_EXTRA      \
3186            $HAVE_LIST         \
3187            $ALL_COMPONENTS    \
3188            $ALL_TESTS         \
3189
3190 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3191
3192 ! enabled_any memalign posix_memalign &&
3193     enabled_any $need_memalign && enable memalign_hack
3194
3195 echo "install prefix            $prefix"
3196 echo "source path               $source_path"
3197 echo "C compiler                $cc"
3198 echo "ARCH                      $arch ($cpu)"
3199 if test "$build_suffix" != ""; then
3200     echo "build suffix              $build_suffix"
3201 fi
3202 if test "$extra_version" != ""; then
3203     echo "version string suffix     $extra_version"
3204 fi
3205 echo "big-endian                ${bigendian-no}"
3206 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3207 if enabled x86; then
3208     echo "${yasmexe}                      ${yasm-no}"
3209     echo "MMX enabled               ${mmx-no}"
3210     echo "MMX2 enabled              ${mmx2-no}"
3211     echo "3DNow! enabled            ${amd3dnow-no}"
3212     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3213     echo "SSE enabled               ${sse-no}"
3214     echo "SSSE3 enabled             ${ssse3-no}"
3215     echo "AVX enabled               ${avx-no}"
3216     echo "CMOV enabled              ${cmov-no}"
3217     echo "CMOV is fast              ${fast_cmov-no}"
3218     echo "EBX available             ${ebx_available-no}"
3219     echo "EBP available             ${ebp_available-no}"
3220 fi
3221 if enabled arm; then
3222     echo "ARMv5TE enabled           ${armv5te-no}"
3223     echo "ARMv6 enabled             ${armv6-no}"
3224     echo "ARMv6T2 enabled           ${armv6t2-no}"
3225     echo "ARM VFP enabled           ${armvfp-no}"
3226     echo "NEON enabled              ${neon-no}"
3227 fi
3228 if enabled mips; then
3229     echo "MMI enabled               ${mmi-no}"
3230 fi
3231 if enabled ppc; then
3232     echo "AltiVec enabled           ${altivec-no}"
3233     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3234     echo "dcbzl available           ${dcbzl-no}"
3235 fi
3236 if enabled sparc; then
3237     echo "VIS enabled               ${vis-no}"
3238 fi
3239 echo "debug symbols             ${debug-no}"
3240 echo "optimize for size         ${small-no}"
3241 echo "optimizations             ${optimizations-no}"
3242 echo "static                    ${static-no}"
3243 echo "shared                    ${shared-no}"
3244 echo "new filter support        ${avfilter-no}"
3245 echo "network support           ${network-no}"
3246 echo "threading support         ${thread_type-no}"
3247 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3248 echo "SDL support               ${sdl-no}"
3249 echo "libdxva2 enabled          ${dxva2-no}"
3250 echo "libva enabled             ${vaapi-no}"
3251 echo "libvdpau enabled          ${vdpau-no}"
3252 echo "AVISynth enabled          ${avisynth-no}"
3253 echo "frei0r enabled            ${frei0r-no}"
3254 echo "gnutls enabled            ${gnutls-no}"
3255 echo "libcdio support           ${libcdio-no}"
3256 echo "libdc1394 support         ${libdc1394-no}"
3257 echo "libfaac enabled           ${libfaac-no}"
3258 echo "libgsm enabled            ${libgsm-no}"
3259 echo "libmp3lame enabled        ${libmp3lame-no}"
3260 echo "libnut enabled            ${libnut-no}"
3261 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3262 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3263 echo "libopencv support         ${libopencv-no}"
3264 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3265 echo "libpulse enabled          ${libpulse-no}"
3266 echo "librtmp enabled           ${librtmp-no}"
3267 echo "libschroedinger enabled   ${libschroedinger-no}"
3268 echo "libspeex enabled          ${libspeex-no}"
3269 echo "libtheora enabled         ${libtheora-no}"
3270 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3271 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3272 echo "libvorbis enabled         ${libvorbis-no}"
3273 echo "libvpx enabled            ${libvpx-no}"
3274 echo "libx264 enabled           ${libx264-no}"
3275 echo "libxavs enabled           ${libxavs-no}"
3276 echo "libxvid enabled           ${libxvid-no}"
3277 echo "openssl enabled           ${openssl-no}"
3278 echo "zlib enabled              ${zlib-no}"
3279 echo "bzlib enabled             ${bzlib-no}"
3280 echo
3281
3282 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3283     echo "Enabled ${type}s:"
3284     eval list=\$$(toupper $type)_LIST
3285     print_enabled '_*' $list | sort | pr -r -3 -t
3286     echo
3287 done
3288
3289 license="LGPL version 2.1 or later"
3290 if enabled nonfree; then
3291     license="nonfree and unredistributable"
3292 elif enabled gplv3; then
3293     license="GPL version 3 or later"
3294 elif enabled lgplv3; then
3295     license="LGPL version 3 or later"
3296 elif enabled gpl; then
3297     license="GPL version 2 or later"
3298 fi
3299
3300 echo "License: $license"
3301
3302 echo "Creating config.mak and config.h..."
3303
3304 test -e Makefile || $ln_s "$source_path/Makefile" .
3305
3306 config_files="$TMPH config.mak"
3307
3308 cat > config.mak <<EOF
3309 # Automatically generated by configure - do not modify!
3310 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3311 prefix=$prefix
3312 LIBDIR=\$(DESTDIR)$libdir
3313 SHLIBDIR=\$(DESTDIR)$shlibdir
3314 INCDIR=\$(DESTDIR)$incdir
3315 BINDIR=\$(DESTDIR)$bindir
3316 DATADIR=\$(DESTDIR)$datadir
3317 MANDIR=\$(DESTDIR)$mandir
3318 SRC_PATH=$source_path
3319 CC_IDENT=$cc_ident
3320 ARCH=$arch
3321 CC=$cc
3322 AS=$as
3323 LD=$ld
3324 DEPCC=$dep_cc
3325 YASM=$yasmexe
3326 YASMDEP=$yasmexe
3327 AR=$ar
3328 RANLIB=$ranlib
3329 LN_S=$ln_s
3330 CPPFLAGS=$CPPFLAGS
3331 CFLAGS=$CFLAGS
3332 ASFLAGS=$ASFLAGS
3333 AS_O=$CC_O
3334 CC_O=$CC_O
3335 DLLTOOL=$dlltool
3336 LDFLAGS=$LDFLAGS
3337 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3338 SHFLAGS=$SHFLAGS
3339 YASMFLAGS=$YASMFLAGS
3340 BUILDSUF=$build_suffix
3341 FULLNAME=$FULLNAME
3342 LIBPREF=$LIBPREF
3343 LIBSUF=$LIBSUF
3344 LIBNAME=$LIBNAME
3345 SLIBPREF=$SLIBPREF
3346 SLIBSUF=$SLIBSUF
3347 EXESUF=$EXESUF
3348 EXTRA_VERSION=$extra_version
3349 DEPFLAGS=$DEPFLAGS
3350 CCDEP=$CCDEP
3351 ASDEP=$ASDEP
3352 CC_DEPFLAGS=$CC_DEPFLAGS
3353 AS_DEPFLAGS=$AS_DEPFLAGS
3354 HOSTCC=$host_cc
3355 HOSTCFLAGS=$host_cflags
3356 HOSTEXESUF=$HOSTEXESUF
3357 HOSTLDFLAGS=$host_ldflags
3358 HOSTLIBS=$host_libs
3359 TARGET_EXEC=$target_exec
3360 TARGET_PATH=$target_path
3361 SDL_LIBS=$sdl_libs
3362 SDL_CFLAGS=$sdl_cflags
3363 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3364 EXTRALIBS=$extralibs
3365 INSTALL=install
3366 LIBTARGET=${LIBTARGET}
3367 SLIBNAME=${SLIBNAME}
3368 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3369 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3370 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3371 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3372 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3373 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3374 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3375 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3376 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3377 EOF
3378
3379 get_version(){
3380     name=$1
3381     file=$source_path/$2
3382     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3383     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3384     lcname=$(tolower $name)
3385     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3386     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3387 }
3388
3389 get_version LIBAVCODEC  libavcodec/version.h
3390 get_version LIBAVDEVICE libavdevice/avdevice.h
3391 get_version LIBAVFILTER libavfilter/version.h
3392 get_version LIBAVFORMAT libavformat/version.h
3393 get_version LIBAVRESAMPLE libavresample/version.h
3394 get_version LIBAVUTIL   libavutil/avutil.h
3395 get_version LIBSWSCALE  libswscale/swscale.h
3396
3397 cat > $TMPH <<EOF
3398 /* Automatically generated by configure - do not modify! */
3399 #ifndef LIBAV_CONFIG_H
3400 #define LIBAV_CONFIG_H
3401 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3402 #define LIBAV_LICENSE "$(c_escape $license)"
3403 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3404 #define CC_TYPE "$cc_type"
3405 #define CC_VERSION $cc_version
3406 #define restrict $_restrict
3407 #define EXTERN_PREFIX "${extern_prefix}"
3408 #define EXTERN_ASM ${extern_prefix}
3409 #define SLIBSUF "$SLIBSUF"
3410 EOF
3411
3412 test -n "$malloc_prefix" &&
3413     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3414
3415 if enabled small || disabled optimizations; then
3416     echo "#undef  av_always_inline"  >> $TMPH
3417     if enabled small; then
3418         echo "#define av_always_inline inline"  >> $TMPH
3419     else
3420         echo "#define av_always_inline av_unused"  >> $TMPH
3421     fi
3422 fi
3423
3424 if enabled yasm; then
3425     append config_files $TMPASM
3426     printf '' >$TMPASM
3427 fi
3428
3429 print_config ARCH_   "$config_files" $ARCH_LIST
3430 print_config HAVE_   "$config_files" $HAVE_LIST
3431 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3432                                      $CONFIG_EXTRA      \
3433                                      $ALL_COMPONENTS    \
3434
3435 cat >>config.mak <<EOF
3436 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3437 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3438 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3439 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3440 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3441 EOF
3442
3443 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3444
3445 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3446 cp_if_changed $TMPH config.h
3447 touch .config
3448
3449 enabled yasm && cp_if_changed $TMPASM config.asm
3450
3451 cat > $TMPH <<EOF
3452 /* Generated by ffconf */
3453 #ifndef AVUTIL_AVCONFIG_H
3454 #define AVUTIL_AVCONFIG_H
3455 EOF
3456
3457 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3458
3459 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3460
3461 cp_if_changed $TMPH libavutil/avconfig.h
3462
3463 test -n "$WARNINGS" && printf "\n$WARNINGS"
3464
3465 # build pkg-config files
3466
3467 pkgconfig_generate(){
3468 name=$1
3469 shortname=${name#lib}${build_suffix}
3470 comment=$2
3471 version=$3
3472 libs=$4
3473 requires=$5
3474 enabled ${name#lib} || return 0
3475 mkdir -p $name
3476 cat <<EOF > $name/$name.pc
3477 prefix=$prefix
3478 exec_prefix=\${prefix}
3479 libdir=$libdir
3480 includedir=$incdir
3481
3482 Name: $name
3483 Description: $comment
3484 Version: $version
3485 Requires: $(enabled shared || echo $requires)
3486 Requires.private: $(enabled shared && echo $requires)
3487 Conflicts:
3488 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3489 Libs.private: $(enabled shared && echo $libs)
3490 Cflags: -I\${includedir}
3491 EOF
3492 cat <<EOF > $name/$name-uninstalled.pc
3493 prefix=
3494 exec_prefix=
3495 libdir=\${pcfiledir}
3496 includedir=${source_path}
3497
3498 Name: $name
3499 Description: $comment
3500 Version: $version
3501 Requires: $requires
3502 Conflicts:
3503 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3504 Cflags: -I\${includedir}
3505 EOF
3506 }
3507
3508 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3509 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3510 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3511 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3512 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3513 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3514 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"