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