avconv: drop support for building without libavfilter.
[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-pthreads       disable pthreads [auto]
114   --disable-w32threads     disable Win32 threads [auto]
115   --enable-x11grab         enable X11 grabbing [no]
116   --disable-network        disable network support [no]
117   --disable-dct            disable DCT code
118   --disable-mdct           disable MDCT code
119   --disable-rdft           disable RDFT code
120   --disable-fft            disable FFT code
121   --enable-dxva2           enable DXVA2 code
122   --enable-vaapi           enable VAAPI code
123   --enable-vda             enable VDA code
124   --enable-vdpau           enable VDPAU code
125
126 Individual component options:
127   --disable-everything     disable all components listed below
128   --disable-encoder=NAME   disable encoder NAME
129   --enable-encoder=NAME    enable encoder NAME
130   --disable-encoders       disable all encoders
131   --disable-decoder=NAME   disable decoder NAME
132   --enable-decoder=NAME    enable decoder NAME
133   --disable-decoders       disable all decoders
134   --disable-hwaccel=NAME   disable hwaccel NAME
135   --enable-hwaccel=NAME    enable hwaccel NAME
136   --disable-hwaccels       disable all hwaccels
137   --disable-muxer=NAME     disable muxer NAME
138   --enable-muxer=NAME      enable muxer NAME
139   --disable-muxers         disable all muxers
140   --disable-demuxer=NAME   disable demuxer NAME
141   --enable-demuxer=NAME    enable demuxer NAME
142   --disable-demuxers       disable all demuxers
143   --enable-parser=NAME     enable parser NAME
144   --disable-parser=NAME    disable parser NAME
145   --disable-parsers        disable all parsers
146   --enable-bsf=NAME        enable bitstream filter NAME
147   --disable-bsf=NAME       disable bitstream filter NAME
148   --disable-bsfs           disable all bitstream filters
149   --enable-protocol=NAME   enable protocol NAME
150   --disable-protocol=NAME  disable protocol NAME
151   --disable-protocols      disable all protocols
152   --enable-indev=NAME      enable input device NAME
153   --disable-indev=NAME     disable input device NAME
154   --disable-indevs         disable input devices
155   --enable-outdev=NAME     enable output device NAME
156   --disable-outdev=NAME    disable output device NAME
157   --disable-outdevs        disable output devices
158   --disable-devices        disable all devices
159   --enable-filter=NAME     enable filter NAME
160   --disable-filter=NAME    disable filter NAME
161   --disable-filters        disable all filters
162
163 External library support:
164   --enable-avisynth        enable reading of AVISynth script files [no]
165   --enable-bzlib           enable bzlib [autodetect]
166   --enable-frei0r          enable frei0r video filtering
167   --enable-gnutls          enable gnutls [no]
168   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
169   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
170   --enable-libopencv       enable video filtering via libopencv [no]
171   --enable-libcdio         enable audio CD grabbing with libcdio
172   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
173                            and libraw1394 [no]
174   --enable-libdirac        enable Dirac support via libdirac [no]
175   --enable-libfaac         enable FAAC support via libfaac [no]
176   --enable-libfreetype     enable libfreetype [no]
177   --enable-libgsm          enable GSM support via libgsm [no]
178   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
179   --enable-libnut          enable NUT (de)muxing via libnut,
180                            native (de)muxer exists [no]
181   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
182   --enable-libpulse        enable Pulseaudio input via libpulse [no]
183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
185   --enable-libspeex        enable Speex support via libspeex [no]
186   --enable-libtheora       enable Theora encoding via libtheora [no]
187   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
188   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
189   --enable-libvorbis       enable Vorbis encoding via libvorbis,
190                            native implementation exists [no]
191   --enable-libvpx          enable VP8 support via libvpx [no]
192   --enable-libx264         enable H.264 encoding via x264 [no]
193   --enable-libxavs         enable AVS encoding via xavs [no]
194   --enable-libxvid         enable Xvid encoding via xvidcore,
195                            native MPEG-4/Xvid encoder exists [no]
196   --enable-openssl         enable openssl [no]
197   --enable-zlib            enable zlib [autodetect]
198
199 Advanced options (experts only):
200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
201   --enable-cross-compile   assume a cross-compiler is used
202   --sysroot=PATH           root of cross-build tree
203   --sysinclude=PATH        location of cross-build system headers
204   --target-os=OS           compiler targets OS [$target_os]
205   --target-exec=CMD        command to run executables on target
206   --target-path=DIR        path to view of build directory on target
207   --nm=NM                  use nm tool
208   --ar=AR                  use archive tool AR [$ar_default]
209   --as=AS                  use assembler AS [$as_default]
210   --cc=CC                  use C compiler CC [$cc_default]
211   --ld=LD                  use linker LD
212   --host-cc=HOSTCC         use host C compiler HOSTCC
213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
215   --host-libs=HLIBS        use libs HLIBS when linking for host
216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --optflags               override optimization-related compiler flags
221   --build-suffix=SUFFIX    library name suffix []
222   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
223   --arch=ARCH              select architecture [$arch]
224   --cpu=CPU                select the minimum required CPU (affects
225                            instruction selection, may crash on older CPUs)
226   --enable-pic             build position-independent code
227   --enable-sram            allow use of on-chip SRAM
228   --disable-symver         disable symbol versioning
229   --disable-fastdiv        disable table-based division
230   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
231   --disable-safe-bitstream-reader
232                            disable buffer boundary checking in bitreaders
233                            (faster, but may crash)
234   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
235
236 Optimization options (experts only):
237   --disable-asm            disable all assembler optimizations
238   --disable-altivec        disable AltiVec optimizations
239   --disable-amd3dnow       disable 3DNow! optimizations
240   --disable-amd3dnowext    disable 3DNow! extended optimizations
241   --disable-mmx            disable MMX optimizations
242   --disable-mmx2           disable MMX2 optimizations
243   --disable-sse            disable SSE optimizations
244   --disable-ssse3          disable SSSE3 optimizations
245   --disable-avx            disable AVX optimizations
246   --disable-armv5te        disable armv5te optimizations
247   --disable-armv6          disable armv6 optimizations
248   --disable-armv6t2        disable armv6t2 optimizations
249   --disable-armvfp         disable ARM VFP optimizations
250   --disable-mmi            disable MMI optimizations
251   --disable-neon           disable NEON optimizations
252   --disable-vis            disable VIS optimizations
253   --disable-yasm           disable use of yasm assembler
254
255 Developer options (useful when working on Libav itself):
256   --disable-debug          disable debugging symbols
257   --enable-debug=LEVEL     set the debug level [$debuglevel]
258   --disable-optimizations  disable compiler optimizations
259   --enable-extra-warnings  enable more compiler warnings
260   --samples=PATH           location of test samples for FATE, if not set use
261                            \$FATE_SAMPLES at make invocation time.
262   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
263                            should be used only for debugging purposes)
264
265 NOTE: Object files are built at the place where configure is launched.
266 EOF
267   exit 0
268 }
269
270 quotes='""'
271
272 log(){
273     echo "$@" >> $logfile
274 }
275
276 log_file(){
277     log BEGIN $1
278     pr -n -t $1 >> $logfile
279     log END $1
280 }
281
282 echolog(){
283     log "$@"
284     echo "$@"
285 }
286
287 warn(){
288     log "WARNING: $*"
289     WARNINGS="${WARNINGS}WARNING: $*\n"
290 }
291
292 die(){
293     echolog "$@"
294     cat <<EOF
295
296 If you think configure made a mistake, make sure you are using the latest
297 version from Git.  If the latest version fails, report the problem to the
298 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
299 EOF
300     if disabled logging; then
301         cat <<EOF
302 Rerun configure with logging enabled (do not use --disable-logging), and
303 include the log this produces with your report.
304 EOF
305     else
306 cat <<EOF
307 Include the log file "$logfile" produced by configure as this will help
308 solving the problem.
309 EOF
310     fi
311     exit 1
312 }
313
314 # Avoid locale weirdness, besides we really just want to translate ASCII.
315 toupper(){
316     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
317 }
318
319 tolower(){
320     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
321 }
322
323 c_escape(){
324     echo "$*" | sed 's/["\\]/\\\0/g'
325 }
326
327 sh_quote(){
328     v=$(echo "$1" | sed "s/'/'\\\\''/g")
329     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
330     echo "$v"
331 }
332
333 cleanws(){
334     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
335 }
336
337 filter(){
338     pat=$1
339     shift
340     for v; do
341         eval "case $v in $pat) echo $v ;; esac"
342     done
343 }
344
345 filter_out(){
346     pat=$1
347     shift
348     for v; do
349         eval "case $v in $pat) ;; *) echo $v ;; esac"
350     done
351 }
352
353 map(){
354     m=$1
355     shift
356     for v; do eval $m; done
357 }
358
359 set_all(){
360     value=$1
361     shift
362     for var in $*; do
363         eval $var=$value
364     done
365 }
366
367 set_weak(){
368     value=$1
369     shift
370     for var; do
371         eval : \${$var:=$value}
372     done
373 }
374
375 set_safe(){
376     var=$1
377     shift
378     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
379 }
380
381 get_safe(){
382     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
383 }
384
385 pushvar(){
386     for var in $*; do
387         eval level=\${${var}_level:=0}
388         eval ${var}_${level}="\$$var"
389         eval ${var}_level=$(($level+1))
390     done
391 }
392
393 popvar(){
394     for var in $*; do
395         eval level=\${${var}_level:-0}
396         test $level = 0 && continue
397         eval level=$(($level-1))
398         eval $var="\${${var}_${level}}"
399         eval ${var}_level=$level
400         eval unset ${var}_${level}
401     done
402 }
403
404 enable(){
405     set_all yes $*
406 }
407
408 disable(){
409     set_all no $*
410 }
411
412 enable_weak(){
413     set_weak yes $*
414 }
415
416 disable_weak(){
417     set_weak no $*
418 }
419
420 enable_safe(){
421     for var; do
422         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
423     done
424 }
425
426 disable_safe(){
427     for var; do
428         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
429     done
430 }
431
432 do_enable_deep(){
433     for var; do
434         enabled $var && continue
435         eval sel="\$${var}_select"
436         eval sgs="\$${var}_suggest"
437         pushvar var sgs
438         enable_deep $sel
439         popvar sgs
440         enable_deep_weak $sgs
441         popvar var
442     done
443 }
444
445 enable_deep(){
446     do_enable_deep $*
447     enable $*
448 }
449
450 enable_deep_weak(){
451     do_enable_deep $*
452     enable_weak $*
453 }
454
455 enabled(){
456     test "${1#!}" = "$1" && op== || op=!=
457     eval test "x\$${1#!}" $op "xyes"
458 }
459
460 disabled(){
461     test "${1#!}" = "$1" && op== || op=!=
462     eval test "x\$${1#!}" $op "xno"
463 }
464
465 enabled_all(){
466     for opt; do
467         enabled $opt || return 1
468     done
469 }
470
471 disabled_all(){
472     for opt; do
473         disabled $opt || return 1
474     done
475 }
476
477 enabled_any(){
478     for opt; do
479         enabled $opt && return 0
480     done
481 }
482
483 disabled_any(){
484     for opt; do
485         disabled $opt && return 0
486     done
487     return 1
488 }
489
490 set_default(){
491     for opt; do
492         eval : \${$opt:=\$${opt}_default}
493     done
494 }
495
496 is_in(){
497     value=$1
498     shift
499     for var in $*; do
500         [ $var = $value ] && return 0
501     done
502     return 1
503 }
504
505 check_deps(){
506     for cfg; do
507         cfg="${cfg#!}"
508         enabled ${cfg}_checking && die "Circular dependency for $cfg."
509         disabled ${cfg}_checking && continue
510         enable ${cfg}_checking
511
512         eval dep_all="\$${cfg}_deps"
513         eval dep_any="\$${cfg}_deps_any"
514         eval dep_sel="\$${cfg}_select"
515         eval dep_sgs="\$${cfg}_suggest"
516         eval dep_ifa="\$${cfg}_if"
517         eval dep_ifn="\$${cfg}_if_any"
518
519         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
520         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
521         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
522
523         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
524         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
525         enabled_all  $dep_all || disable $cfg
526         enabled_any  $dep_any || disable $cfg
527         disabled_any $dep_sel && disable $cfg
528
529         if enabled $cfg; then
530             eval dep_extralibs="\$${cfg}_extralibs"
531             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
532             enable_deep $dep_sel
533             enable_deep_weak $dep_sgs
534         fi
535
536         disable ${cfg}_checking
537     done
538 }
539
540 print_config_h(){
541     enabled $1 && v=1 || v=0
542     echo "#define $2 $v"
543 }
544
545 print_config_mak(){
546     enabled $1 && v= || v=!
547     echo "$v$2=yes"
548 }
549
550 print_config_asm(){
551     enabled $1 && v=1 || v=0
552     echo "%define $2 $v"
553 }
554
555 print_config(){
556     pfx=$1
557     files=$2
558     shift 2
559     for cfg; do
560         ucname="$(toupper $cfg)"
561         for f in $files; do
562             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
563         done
564     done
565 }
566
567 print_enabled(){
568     test "$1" = -n && end=" " && shift || end="\n"
569     suf=$1
570     shift
571     for v; do
572         enabled $v && printf "%s$end" ${v%$suf};
573     done
574 }
575
576 append(){
577     var=$1
578     shift
579     eval "$var=\"\$$var $*\""
580 }
581
582 prepend(){
583     var=$1
584     shift
585     eval "$var=\"$* \$$var\""
586 }
587
588 add_cppflags(){
589     append CPPFLAGS $($filter_cppflags "$@")
590 }
591
592 add_cflags(){
593     append CFLAGS $($filter_cflags "$@")
594 }
595
596 add_asflags(){
597     append ASFLAGS $($filter_asflags "$@")
598 }
599
600 add_ldflags(){
601     append LDFLAGS "$@"
602 }
603
604 add_extralibs(){
605     prepend extralibs "$@"
606 }
607
608 check_cmd(){
609     log "$@"
610     "$@" >> $logfile 2>&1
611 }
612
613 check_cc(){
614     log check_cc "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
618 }
619
620 check_cpp(){
621     log check_cpp "$@"
622     cat > $TMPC
623     log_file $TMPC
624     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
625 }
626
627 check_as(){
628     log check_as "$@"
629     cat > $TMPC
630     log_file $TMPC
631     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
632 }
633
634 check_asm(){
635     log check_asm "$@"
636     name="$1"
637     code="$2"
638     shift 2
639     disable $name
640     check_as "$@" <<EOF && enable $name
641 void foo(void){ __asm__ volatile($code); }
642 EOF
643 }
644
645 check_yasm(){
646     log check_yasm "$@"
647     echo "$1" > $TMPS
648     log_file $TMPS
649     shift 1
650     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
651 }
652
653 check_ld(){
654     log check_ld "$@"
655     flags=''
656     libs=''
657     for f; do
658         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
659     done
660     check_cc $($filter_cflags $flags) || return
661     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
662 }
663
664 check_cppflags(){
665     log check_cppflags "$@"
666     set -- $($filter_cppflags "$@")
667     check_cc "$@" <<EOF && append CPPFLAGS "$@"
668 int x;
669 EOF
670 }
671
672 check_cflags(){
673     log check_cflags "$@"
674     set -- $($filter_cflags "$@")
675     check_cc "$@" <<EOF && append CFLAGS "$@"
676 int x;
677 EOF
678 }
679
680 test_ldflags(){
681     log test_ldflags "$@"
682     check_ld "$@" <<EOF
683 int main(void){ return 0; }
684 EOF
685 }
686
687 check_ldflags(){
688     log check_ldflags "$@"
689     test_ldflags "$@" && add_ldflags "$@"
690 }
691
692 check_header(){
693     log check_header "$@"
694     header=$1
695     shift
696     disable_safe $header
697     check_cpp "$@" <<EOF && enable_safe $header
698 #include <$header>
699 int x;
700 EOF
701 }
702
703 check_func(){
704     log check_func "$@"
705     func=$1
706     shift
707     disable $func
708     check_ld "$@" <<EOF && enable $func
709 extern int $func();
710 int main(void){ $func(); }
711 EOF
712 }
713
714 check_mathfunc(){
715     log check_mathfunc "$@"
716     func=$1
717     shift
718     disable $func
719     check_ld "$@" <<EOF && enable $func
720 #include <math.h>
721 float foo(float f) { return $func(f); }
722 int main(void){ return 0; }
723 EOF
724 }
725
726 check_func_headers(){
727     log check_func_headers "$@"
728     headers=$1
729     funcs=$2
730     shift 2
731     {
732         for hdr in $headers; do
733             echo "#include <$hdr>"
734         done
735         for func in $funcs; do
736             echo "long check_$func(void) { return (long) $func; }"
737         done
738         echo "int main(void) { return 0; }"
739     } | check_ld "$@" && enable $funcs && enable_safe $headers
740 }
741
742 check_cpp_condition(){
743     log check_cpp_condition "$@"
744     header=$1
745     condition=$2
746     shift 2
747     check_cpp $($filter_cppflags "$@") <<EOF
748 #include <$header>
749 #if !($condition)
750 #error "unsatisfied condition: $condition"
751 #endif
752 EOF
753 }
754
755 check_lib(){
756     log check_lib "$@"
757     header="$1"
758     func="$2"
759     shift 2
760     check_header $header && check_func $func "$@" && add_extralibs "$@"
761 }
762
763 check_lib2(){
764     log check_lib2 "$@"
765     headers="$1"
766     funcs="$2"
767     shift 2
768     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
769 }
770
771 check_pkg_config(){
772     log check_pkg_config "$@"
773     pkg="$1"
774     headers="$2"
775     funcs="$3"
776     shift 3
777     $pkg_config --exists $pkg || return
778     pkg_cflags=$($pkg_config --cflags $pkg)
779     pkg_libs=$($pkg_config --libs $pkg)
780     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
781         set_safe ${pkg}_cflags $pkg_cflags   &&
782         set_safe ${pkg}_libs   $pkg_libs
783 }
784
785 check_exec(){
786     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
787 }
788
789 check_exec_crash(){
790     code=$(cat)
791
792     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
793     # are safe but may not be available everywhere.  Thus we use
794     # raise(SIGTERM) instead.  The check is run in a subshell so we
795     # can redirect the "Terminated" message from the shell.  SIGBUS
796     # is not defined by standard C so it is used conditionally.
797
798     (check_exec "$@") >> $logfile 2>&1 <<EOF
799 #include <signal.h>
800 static void sighandler(int sig){
801     raise(SIGTERM);
802 }
803 int main(void){
804     signal(SIGILL, sighandler);
805     signal(SIGFPE, sighandler);
806     signal(SIGSEGV, sighandler);
807 #ifdef SIGBUS
808     signal(SIGBUS, sighandler);
809 #endif
810     { $code }
811 }
812 EOF
813 }
814
815 check_type(){
816     log check_type "$@"
817     headers=$1
818     type=$2
819     shift 2
820     disable_safe "$type"
821     incs=""
822     for hdr in $headers; do
823         incs="$incs
824 #include <$hdr>"
825     done
826     check_cc "$@" <<EOF && enable_safe "$type"
827 $incs
828 $type v;
829 EOF
830 }
831
832 check_struct(){
833     log check_type "$@"
834     headers=$1
835     struct=$2
836     member=$3
837     shift 3
838     disable_safe "${struct}_${member}"
839     incs=""
840     for hdr in $headers; do
841         incs="$incs
842 #include <$hdr>"
843     done
844     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
845 $incs
846 const void *p = &(($struct *)0)->$member;
847 EOF
848 }
849
850 require(){
851     name="$1"
852     header="$2"
853     func="$3"
854     shift 3
855     check_lib $header $func "$@" || die "ERROR: $name not found"
856 }
857
858 require2(){
859     name="$1"
860     headers="$2"
861     func="$3"
862     shift 3
863     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
864 }
865
866 require_pkg_config(){
867     pkg="$1"
868     check_pkg_config "$@" || die "ERROR: $pkg not found"
869     add_cflags    $(get_safe ${pkg}_cflags)
870     add_extralibs $(get_safe ${pkg}_libs)
871 }
872
873 check_host_cc(){
874     log check_host_cc "$@"
875     cat > $TMPC
876     log_file $TMPC
877     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
878 }
879
880 check_host_cflags(){
881     log check_host_cflags "$@"
882     check_host_cc "$@" <<EOF && append host_cflags "$@"
883 int x;
884 EOF
885 }
886
887 apply(){
888     file=$1
889     shift
890     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
891 }
892
893 cp_if_changed(){
894     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
895     mkdir -p "$(dirname $2)"
896     cp -f "$1" "$2"
897 }
898
899 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
900 # system-dependent things.
901
902 COMPONENT_LIST="
903     bsfs
904     decoders
905     demuxers
906     encoders
907     filters
908     hwaccels
909     indevs
910     muxers
911     outdevs
912     parsers
913     protocols
914 "
915
916 PROGRAM_LIST="
917     avconv
918     avplay
919     avprobe
920     avserver
921 "
922
923 CONFIG_LIST="
924     $COMPONENT_LIST
925     $PROGRAM_LIST
926     ac3dsp
927     avcodec
928     avdevice
929     avfilter
930     avformat
931     avisynth
932     bzlib
933     dct
934     doc
935     dwt
936     dxva2
937     fastdiv
938     fft
939     frei0r
940     gnutls
941     gpl
942     gray
943     hardcoded_tables
944     libcdio
945     libdc1394
946     libdirac
947     libfaac
948     libfreetype
949     libgsm
950     libmp3lame
951     libnut
952     libopencore_amrnb
953     libopencore_amrwb
954     libopencv
955     libopenjpeg
956     libpulse
957     librtmp
958     libschroedinger
959     libspeex
960     libtheora
961     libvo_aacenc
962     libvo_amrwbenc
963     libvorbis
964     libvpx
965     libx264
966     libxavs
967     libxvid
968     lsp
969     mdct
970     memalign_hack
971     mpegaudiodsp
972     network
973     nonfree
974     openssl
975     pic
976     rdft
977     rtpdec
978     runtime_cpudetect
979     safe_bitstream_reader
980     shared
981     sinewin
982     small
983     sram
984     static
985     swscale
986     swscale_alpha
987     thumb
988     vaapi
989     vda
990     vdpau
991     version3
992     xmm_clobber_test
993     x11grab
994     zlib
995 "
996
997 THREADS_LIST='
998     pthreads
999     w32threads
1000 '
1001
1002 ARCH_LIST='
1003     alpha
1004     arm
1005     avr32
1006     avr32_ap
1007     avr32_uc
1008     bfin
1009     ia64
1010     m68k
1011     mips
1012     mips64
1013     parisc
1014     ppc
1015     ppc64
1016     s390
1017     sh4
1018     sparc
1019     sparc64
1020     tomi
1021     x86
1022     x86_32
1023     x86_64
1024 '
1025
1026 ARCH_EXT_LIST='
1027     altivec
1028     amd3dnow
1029     amd3dnowext
1030     armv5te
1031     armv6
1032     armv6t2
1033     armvfp
1034     avx
1035     mmi
1036     mmx
1037     mmx2
1038     neon
1039     ppc4xx
1040     sse
1041     ssse3
1042     vfpv3
1043     vis
1044 '
1045
1046 HAVE_LIST_PUB='
1047     bigendian
1048     fast_unaligned
1049 '
1050
1051 HAVE_LIST="
1052     $ARCH_EXT_LIST
1053     $HAVE_LIST_PUB
1054     $THREADS_LIST
1055     aligned_stack
1056     alsa_asoundlib_h
1057     altivec_h
1058     arpa_inet_h
1059     asm_mod_y
1060     attribute_may_alias
1061     attribute_packed
1062     closesocket
1063     cmov
1064     dcbzl
1065     dev_bktr_ioctl_bt848_h
1066     dev_bktr_ioctl_meteor_h
1067     dev_ic_bt8xx_h
1068     dev_video_bktr_ioctl_bt848_h
1069     dev_video_meteor_ioctl_meteor_h
1070     dlfcn_h
1071     dlopen
1072     dos_paths
1073     ebp_available
1074     ebx_available
1075     exp2
1076     exp2f
1077     fast_64bit
1078     fast_clz
1079     fast_cmov
1080     fcntl
1081     fork
1082     getaddrinfo
1083     gethrtime
1084     GetProcessAffinityMask
1085     GetProcessMemoryInfo
1086     GetProcessTimes
1087     getrusage
1088     gnu_as
1089     ibm_asm
1090     inet_aton
1091     inline_asm
1092     isatty
1093     ldbrx
1094     libdc1394_1
1095     libdc1394_2
1096     llrint
1097     llrintf
1098     local_aligned_16
1099     local_aligned_8
1100     localtime_r
1101     log2
1102     log2f
1103     loongson
1104     lrint
1105     lrintf
1106     machine_ioctl_bt848_h
1107     machine_ioctl_meteor_h
1108     malloc_h
1109     MapViewOfFile
1110     memalign
1111     mkstemp
1112     mmap
1113     poll_h
1114     posix_memalign
1115     round
1116     roundf
1117     sched_getaffinity
1118     sdl
1119     sdl_video_size
1120     setmode
1121     setrlimit
1122     sndio_h
1123     socklen_t
1124     soundcard_h
1125     strerror_r
1126     strptime
1127     strtok_r
1128     struct_addrinfo
1129     struct_ipv6_mreq
1130     struct_rusage_ru_maxrss
1131     struct_sockaddr_in6
1132     struct_sockaddr_sa_len
1133     struct_sockaddr_storage
1134     struct_v4l2_frmivalenum_discrete
1135     symver
1136     symver_asm_label
1137     symver_gnu_asm
1138     sysconf
1139     sysctl
1140     sys_mman_h
1141     sys_param_h
1142     sys_resource_h
1143     sys_select_h
1144     sys_soundcard_h
1145     sys_videoio_h
1146     threads
1147     trunc
1148     truncf
1149     vfp_args
1150     VirtualAlloc
1151     winsock2_h
1152     xform_asm
1153     xmm_clobbers
1154     yasm
1155 "
1156
1157 # options emitted with CONFIG_ prefix but not available on command line
1158 CONFIG_EXTRA="
1159     aandct
1160     avutil
1161     golomb
1162     gplv3
1163     h264chroma
1164     h264dsp
1165     h264pred
1166     h264qpel
1167     huffman
1168     lgplv3
1169     lpc
1170 "
1171
1172 CMDLINE_SELECT="
1173     $ARCH_EXT_LIST
1174     $CONFIG_LIST
1175     $THREADS_LIST
1176     asm
1177     cross_compile
1178     debug
1179     extra_warnings
1180     logging
1181     optimizations
1182     symver
1183     yasm
1184 "
1185
1186 PATHS_LIST='
1187     bindir
1188     datadir
1189     incdir
1190     libdir
1191     mandir
1192     prefix
1193     shlibdir
1194 '
1195
1196 CMDLINE_SET="
1197     $PATHS_LIST
1198     ar
1199     arch
1200     as
1201     build_suffix
1202     cc
1203     cpu
1204     cross_prefix
1205     dep_cc
1206     extra_version
1207     host_cc
1208     host_cflags
1209     host_ldflags
1210     host_libs
1211     host_os
1212     ld
1213     logfile
1214     malloc_prefix
1215     nm
1216     optflags
1217     pkg_config
1218     samples
1219     sysinclude
1220     sysroot
1221     target_exec
1222     target_os
1223     target_path
1224 "
1225
1226 CMDLINE_APPEND="
1227     extra_cflags
1228 "
1229
1230 # code dependency declarations
1231
1232 # architecture extensions
1233
1234 armv5te_deps="arm"
1235 armv6_deps="arm"
1236 armv6t2_deps="arm"
1237 armvfp_deps="arm"
1238 neon_deps="arm"
1239 vfpv3_deps="armvfp"
1240
1241 mmi_deps="mips"
1242
1243 altivec_deps="ppc"
1244 ppc4xx_deps="ppc"
1245
1246 vis_deps="sparc"
1247
1248 x86_64_suggest="cmov fast_cmov"
1249 amd3dnow_deps="mmx"
1250 amd3dnowext_deps="amd3dnow"
1251 mmx_deps="x86"
1252 mmx2_deps="mmx"
1253 sse_deps="mmx"
1254 ssse3_deps="sse"
1255 avx_deps="ssse3"
1256
1257 aligned_stack_if_any="ppc x86"
1258 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1259 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1260 fast_unaligned_if_any="armv6 ppc x86"
1261
1262 inline_asm_deps="!tms470"
1263 need_memalign="altivec neon sse"
1264
1265 symver_if_any="symver_asm_label symver_gnu_asm"
1266
1267 # subsystems
1268 dct_select="rdft"
1269 mdct_select="fft"
1270 rdft_select="fft"
1271 mpegaudiodsp_select="dct"
1272
1273 # decoders / encoders / hardware accelerators
1274 aac_decoder_select="mdct sinewin"
1275 aac_encoder_select="mdct sinewin"
1276 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1277 ac3_decoder_select="mdct ac3dsp ac3_parser"
1278 ac3_encoder_select="mdct ac3dsp"
1279 ac3_fixed_encoder_select="mdct ac3dsp"
1280 alac_encoder_select="lpc"
1281 amrnb_decoder_select="lsp"
1282 amrwb_decoder_select="lsp"
1283 atrac1_decoder_select="mdct sinewin"
1284 atrac3_decoder_select="mdct"
1285 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1286 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1287 cavs_decoder_select="golomb"
1288 cook_decoder_select="mdct sinewin"
1289 cscd_decoder_suggest="zlib"
1290 dca_decoder_select="mdct"
1291 dnxhd_encoder_select="aandct"
1292 dxa_decoder_select="zlib"
1293 eac3_decoder_select="ac3_decoder"
1294 eac3_encoder_select="mdct ac3dsp"
1295 eamad_decoder_select="aandct"
1296 eatgq_decoder_select="aandct"
1297 eatqi_decoder_select="aandct"
1298 ffv1_decoder_select="golomb"
1299 flac_decoder_select="golomb"
1300 flac_encoder_select="golomb lpc"
1301 flashsv_decoder_select="zlib"
1302 flashsv_encoder_select="zlib"
1303 flashsv2_decoder_select="zlib"
1304 flv_decoder_select="h263_decoder"
1305 flv_encoder_select="h263_encoder"
1306 fraps_decoder_select="huffman"
1307 h261_encoder_select="aandct"
1308 h263_decoder_select="h263_parser"
1309 h263_encoder_select="aandct"
1310 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1311 h263i_decoder_select="h263_decoder"
1312 h263p_encoder_select="h263_encoder"
1313 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1314 h264_dxva2_hwaccel_deps="dxva2api_h"
1315 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1316 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1317 h264_vda_hwaccel_select="vda h264_decoder"
1318 h264_vdpau_decoder_select="vdpau h264_decoder"
1319 imc_decoder_select="fft mdct sinewin"
1320 jpegls_decoder_select="golomb"
1321 jpegls_encoder_select="golomb"
1322 ljpeg_encoder_select="aandct"
1323 loco_decoder_select="golomb"
1324 mjpeg_encoder_select="aandct"
1325 mlp_decoder_select="mlp_parser"
1326 mp1_decoder_select="mpegaudiodsp"
1327 mp1float_decoder_select="mpegaudiodsp"
1328 mp2_decoder_select="mpegaudiodsp"
1329 mp2float_decoder_select="mpegaudiodsp"
1330 mp3_decoder_select="mpegaudiodsp"
1331 mp3adu_decoder_select="mpegaudiodsp"
1332 mp3adufloat_decoder_select="mpegaudiodsp"
1333 mp3float_decoder_select="mpegaudiodsp"
1334 mp3on4_decoder_select="mpegaudiodsp"
1335 mp3on4float_decoder_select="mpegaudiodsp"
1336 mpc7_decoder_select="mpegaudiodsp"
1337 mpc8_decoder_select="mpegaudiodsp"
1338 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1339 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1340 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1341 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1342 mpeg1video_encoder_select="aandct"
1343 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1344 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1345 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1346 mpeg2video_encoder_select="aandct"
1347 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1348 mpeg4_encoder_select="h263_encoder"
1349 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1350 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1351 msmpeg4v1_decoder_select="h263_decoder"
1352 msmpeg4v1_encoder_select="h263_encoder"
1353 msmpeg4v2_decoder_select="h263_decoder"
1354 msmpeg4v2_encoder_select="h263_encoder"
1355 msmpeg4v3_decoder_select="h263_decoder"
1356 msmpeg4v3_encoder_select="h263_encoder"
1357 nellymoser_decoder_select="mdct sinewin"
1358 nellymoser_encoder_select="mdct sinewin"
1359 png_decoder_select="zlib"
1360 png_encoder_select="zlib"
1361 qcelp_decoder_select="lsp"
1362 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1363 ra_144_encoder_select="lpc"
1364 ralf_decoder_select="golomb"
1365 rv10_decoder_select="h263_decoder"
1366 rv10_encoder_select="h263_encoder"
1367 rv20_decoder_select="h263_decoder"
1368 rv20_encoder_select="h263_encoder"
1369 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1370 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1371 shorten_decoder_select="golomb"
1372 sipr_decoder_select="lsp"
1373 snow_decoder_select="dwt"
1374 snow_encoder_select="aandct dwt"
1375 svq1_encoder_select="aandct"
1376 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1377 svq3_decoder_suggest="zlib"
1378 theora_decoder_select="vp3_decoder"
1379 tiff_decoder_suggest="zlib"
1380 tiff_encoder_suggest="zlib"
1381 truehd_decoder_select="mlp_decoder"
1382 tscc_decoder_select="zlib"
1383 twinvq_decoder_select="mdct lsp sinewin"
1384 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1385 vc1_dxva2_hwaccel_deps="dxva2api_h"
1386 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1387 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1388 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1389 vc1image_decoder_select="vc1_decoder"
1390 vorbis_decoder_select="mdct"
1391 vorbis_encoder_select="mdct"
1392 vp6_decoder_select="huffman"
1393 vp6a_decoder_select="vp6_decoder"
1394 vp6f_decoder_select="vp6_decoder"
1395 vp8_decoder_select="h264pred h264qpel"
1396 wmapro_decoder_select="mdct sinewin"
1397 wmav1_decoder_select="mdct sinewin"
1398 wmav1_encoder_select="mdct sinewin"
1399 wmav2_decoder_select="mdct sinewin"
1400 wmav2_encoder_select="mdct sinewin"
1401 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1402 wmv1_decoder_select="h263_decoder"
1403 wmv1_encoder_select="h263_encoder"
1404 wmv2_decoder_select="h263_decoder"
1405 wmv2_encoder_select="h263_encoder"
1406 wmv3_decoder_select="vc1_decoder"
1407 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1408 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1409 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1410 wmv3image_decoder_select="wmv3_decoder"
1411 zerocodec_decoder_select="zlib"
1412 zlib_decoder_select="zlib"
1413 zlib_encoder_select="zlib"
1414 zmbv_decoder_select="zlib"
1415 zmbv_encoder_select="zlib"
1416
1417 vaapi_deps="va_va_h"
1418 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1419 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1420
1421 # parsers
1422 h264_parser_select="golomb h264dsp h264pred"
1423
1424 # external libraries
1425 libdirac_decoder_deps="libdirac !libschroedinger"
1426 libfaac_encoder_deps="libfaac"
1427 libgsm_decoder_deps="libgsm"
1428 libgsm_encoder_deps="libgsm"
1429 libgsm_ms_decoder_deps="libgsm"
1430 libgsm_ms_encoder_deps="libgsm"
1431 libmp3lame_encoder_deps="libmp3lame"
1432 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1433 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1434 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1435 libopenjpeg_decoder_deps="libopenjpeg"
1436 libschroedinger_decoder_deps="libschroedinger"
1437 libschroedinger_encoder_deps="libschroedinger"
1438 libspeex_decoder_deps="libspeex"
1439 libspeex_encoder_deps="libspeex"
1440 libtheora_encoder_deps="libtheora"
1441 libvo_aacenc_encoder_deps="libvo_aacenc"
1442 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1443 libvorbis_encoder_deps="libvorbis"
1444 libvpx_decoder_deps="libvpx"
1445 libvpx_encoder_deps="libvpx"
1446 libx264_encoder_deps="libx264"
1447 libxavs_encoder_deps="libxavs"
1448 libxvid_encoder_deps="libxvid"
1449
1450 # demuxers / muxers
1451 ac3_demuxer_select="ac3_parser"
1452 asf_stream_muxer_select="asf_muxer"
1453 avisynth_demuxer_deps="avisynth"
1454 dirac_demuxer_select="dirac_parser"
1455 eac3_demuxer_select="ac3_parser"
1456 flac_demuxer_select="flac_parser"
1457 ipod_muxer_select="mov_muxer"
1458 libnut_demuxer_deps="libnut"
1459 libnut_muxer_deps="libnut"
1460 matroska_audio_muxer_select="matroska_muxer"
1461 matroska_demuxer_suggest="zlib bzlib"
1462 mov_demuxer_suggest="zlib"
1463 mp3_demuxer_select="mpegaudio_parser"
1464 mp4_muxer_select="mov_muxer"
1465 mpegtsraw_demuxer_select="mpegts_demuxer"
1466 mxf_d10_muxer_select="mxf_muxer"
1467 ogg_demuxer_select="golomb"
1468 psp_muxer_select="mov_muxer"
1469 rtp_demuxer_select="sdp_demuxer"
1470 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1471 rtsp_demuxer_select="http_protocol rtpdec"
1472 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1473 sap_demuxer_select="sdp_demuxer"
1474 sap_muxer_select="rtp_muxer rtp_protocol"
1475 sdp_demuxer_select="rtpdec"
1476 spdif_muxer_select="aac_parser"
1477 tg2_muxer_select="mov_muxer"
1478 tgp_muxer_select="mov_muxer"
1479 w64_demuxer_deps="wav_demuxer"
1480
1481 # indevs / outdevs
1482 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1483 alsa_outdev_deps="alsa_asoundlib_h"
1484 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1485 dv1394_indev_deps="dv1394 dv_demuxer"
1486 fbdev_indev_deps="linux_fb_h"
1487 jack_indev_deps="jack_jack_h"
1488 libcdio_indev_deps="libcdio"
1489 libdc1394_indev_deps="libdc1394"
1490 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1491 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1492 pulse_indev_deps="libpulse"
1493 sndio_indev_deps="sndio_h"
1494 sndio_outdev_deps="sndio_h"
1495 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1496 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1497 vfwcap_indev_extralibs="-lavicap32"
1498 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1499
1500 # protocols
1501 gopher_protocol_deps="network"
1502 httpproxy_protocol_deps="network"
1503 httpproxy_protocol_select="tcp_protocol"
1504 http_protocol_deps="network"
1505 http_protocol_select="tcp_protocol"
1506 https_protocol_select="tls_protocol"
1507 librtmp_protocol_deps="librtmp"
1508 librtmpe_protocol_deps="librtmp"
1509 librtmps_protocol_deps="librtmp"
1510 librtmpt_protocol_deps="librtmp"
1511 librtmpte_protocol_deps="librtmp"
1512 mmsh_protocol_select="http_protocol"
1513 mmst_protocol_deps="network"
1514 rtmp_protocol_deps="!librtmp_protocol"
1515 rtmp_protocol_select="tcp_protocol"
1516 rtp_protocol_select="udp_protocol"
1517 tcp_protocol_deps="network"
1518 tls_protocol_deps_any="openssl gnutls"
1519 tls_protocol_select="tcp_protocol"
1520 udp_protocol_deps="network"
1521
1522 # filters
1523 blackframe_filter_deps="gpl"
1524 boxblur_filter_deps="gpl"
1525 cropdetect_filter_deps="gpl"
1526 delogo_filter_deps="gpl"
1527 drawtext_filter_deps="libfreetype"
1528 frei0r_filter_deps="frei0r dlopen strtok_r"
1529 frei0r_filter_extralibs='$ldl'
1530 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1531 frei0r_src_filter_extralibs='$ldl'
1532 hqdn3d_filter_deps="gpl"
1533 ocv_filter_deps="libopencv"
1534 scale_filter_deps="swscale"
1535 yadif_filter_deps="gpl"
1536
1537 # libraries
1538 avdevice_deps="avcodec avformat"
1539 avformat_deps="avcodec"
1540
1541 # programs
1542 avconv_deps="avcodec avfilter avformat swscale"
1543 avplay_deps="avcodec avformat swscale sdl"
1544 avplay_select="rdft"
1545 avprobe_deps="avcodec avformat"
1546 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1547 avserver_extralibs='$ldl'
1548
1549 doc_deps="texi2html"
1550
1551 # tests
1552
1553 test_deps(){
1554     suf1=$1
1555     suf2=$2
1556     shift 2
1557     for v; do
1558         dep=${v%=*}
1559         tests=${v#*=}
1560         for name in ${tests}; do
1561             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1562         done
1563     done
1564 }
1565
1566 mxf_d10_test_deps="avfilter"
1567 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1568
1569 test_deps _encoder _decoder                                             \
1570     adpcm_ima_qt                                                        \
1571     adpcm_ima_wav                                                       \
1572     adpcm_ms                                                            \
1573     adpcm_swf                                                           \
1574     adpcm_yamaha=adpcm_yam                                              \
1575     alac                                                                \
1576     asv1                                                                \
1577     asv2                                                                \
1578     bmp                                                                 \
1579     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1580     dvvideo="dv dv_411 dv50"                                            \
1581     ffv1                                                                \
1582     flac                                                                \
1583     flashsv                                                             \
1584     flv                                                                 \
1585     adpcm_g726=g726                                                     \
1586     gif                                                                 \
1587     h261                                                                \
1588     h263="h263 h263p"                                                   \
1589     huffyuv                                                             \
1590     jpegls                                                              \
1591     mjpeg="jpg mjpeg ljpeg"                                             \
1592     mp2                                                                 \
1593     mpeg1video="mpeg mpeg1b"                                            \
1594     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1595     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1596     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1597     mpeg4="mpeg4thread error rc"                                        \
1598     msmpeg4v3=msmpeg4                                                   \
1599     msmpeg4v2                                                           \
1600     pbm=pbmpipe                                                         \
1601     pcx                                                                 \
1602     pgm="pgm pgmpipe"                                                   \
1603     png                                                                 \
1604     ppm="ppm ppmpipe"                                                   \
1605     rawvideo="rgb yuv"                                                  \
1606     roq                                                                 \
1607     rv10                                                                \
1608     rv20                                                                \
1609     sgi                                                                 \
1610     snow="snow snowll"                                                  \
1611     svq1                                                                \
1612     targa=tga                                                           \
1613     tiff                                                                \
1614     wmav1                                                               \
1615     wmav2                                                               \
1616     wmv1                                                                \
1617     wmv2                                                                \
1618
1619 test_deps _muxer _demuxer                                               \
1620     aiff                                                                \
1621     pcm_alaw=alaw                                                       \
1622     asf                                                                 \
1623     au                                                                  \
1624     avi                                                                 \
1625     dv=dv_fmt                                                           \
1626     ffm                                                                 \
1627     flv=flv_fmt                                                         \
1628     gxf                                                                 \
1629     matroska=mkv                                                        \
1630     mmf                                                                 \
1631     mov                                                                 \
1632     pcm_mulaw=mulaw                                                     \
1633     mxf="mxf mxf_d10"                                                   \
1634     nut                                                                 \
1635     ogg                                                                 \
1636     rawvideo=pixfmt                                                     \
1637     rm                                                                  \
1638     swf                                                                 \
1639     mpegts=ts                                                           \
1640     voc                                                                 \
1641     wav                                                                 \
1642     yuv4mpegpipe=yuv4mpeg                                               \
1643
1644 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1645 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1646
1647 # default parameters
1648
1649 logfile="config.log"
1650
1651 # installation paths
1652 prefix_default="/usr/local"
1653 bindir_default='${prefix}/bin'
1654 datadir_default='${prefix}/share/avconv'
1655 incdir_default='${prefix}/include'
1656 libdir_default='${prefix}/lib'
1657 mandir_default='${prefix}/share/man'
1658 shlibdir_default="$libdir_default"
1659
1660 # toolchain
1661 ar_default="ar"
1662 cc_default="gcc"
1663 cc_version=\"unknown\"
1664 host_cc_default="gcc"
1665 ln_s="ln -sf"
1666 nm_default="nm"
1667 objformat="elf"
1668 pkg_config_default=pkg-config
1669 ranlib="ranlib"
1670 yasmexe="yasm"
1671
1672 nm_opts='-g'
1673 nogas=":"
1674
1675 # machine
1676 arch_default=$(uname -m)
1677 cpu="generic"
1678
1679 # OS
1680 target_os_default=$(tolower $(uname -s))
1681 host_os=$target_os_default
1682
1683 # configurable options
1684 enable $PROGRAM_LIST
1685
1686 enable avcodec
1687 enable avdevice
1688 enable avfilter
1689 enable avformat
1690 enable avutil
1691 enable swscale
1692
1693 enable asm
1694 enable debug
1695 enable doc
1696 enable fastdiv
1697 enable network
1698 enable optimizations
1699 enable safe_bitstream_reader
1700 enable static
1701 enable swscale_alpha
1702
1703 # build settings
1704 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1705 AVSERVERLDFLAGS=-Wl,-E
1706 LIBPREF="lib"
1707 LIBSUF=".a"
1708 FULLNAME='$(NAME)$(BUILDSUF)'
1709 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1710 SLIBPREF="lib"
1711 SLIBSUF=".so"
1712 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1713 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1714 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1715 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1716 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1717 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1718
1719 AS_O='-o $@'
1720 CC_O='-o $@'
1721
1722 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1723 host_libs='-lm'
1724
1725 target_path='$(CURDIR)'
1726
1727 # since the object filename is not given with the -MM flag, the compiler
1728 # is only able to print the basename, and we must add the path ourselves
1729 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1730 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1731
1732 # find source path
1733 if test -f configure; then
1734     source_path=.
1735 else
1736     source_path=$(cd $(dirname "$0"); pwd)
1737     echo "$source_path" | grep -q '[[:blank:]]' &&
1738         die "Out of tree builds are impossible with whitespace in source path."
1739     test -e "$source_path/config.h" &&
1740         die "Out of tree builds are impossible with config.h in source dir."
1741 fi
1742
1743 for v in "$@"; do
1744     r=${v#*=}
1745     l=${v%"$r"}
1746     r=$(sh_quote "$r")
1747     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1748 done
1749
1750 find_things(){
1751     thing=$1
1752     pattern=$2
1753     file=$source_path/$3
1754     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1755 }
1756
1757 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1758 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1759 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1760 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1761 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1762 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1763 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1764 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1765 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1766 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1767 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1768
1769 ALL_COMPONENTS="
1770     $BSF_LIST
1771     $DECODER_LIST
1772     $DEMUXER_LIST
1773     $ENCODER_LIST
1774     $FILTER_LIST
1775     $HWACCEL_LIST
1776     $INDEV_LIST
1777     $MUXER_LIST
1778     $OUTDEV_LIST
1779     $PARSER_LIST
1780     $PROTOCOL_LIST
1781 "
1782
1783 find_tests(){
1784     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1785 }
1786
1787 ACODEC_TESTS=$(find_tests acodec)
1788 VCODEC_TESTS=$(find_tests vsynth1)
1789 LAVF_TESTS=$(find_tests lavf)
1790 LAVFI_TESTS=$(find_tests lavfi)
1791 SEEK_TESTS=$(find_tests seek seek_)
1792
1793 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1794
1795 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1796
1797 for n in $COMPONENT_LIST; do
1798     v=$(toupper ${n%s})_LIST
1799     eval enable \$$v
1800     eval ${n}_if_any="\$$v"
1801 done
1802
1803 enable $ARCH_EXT_LIST $ALL_TESTS
1804
1805 die_unknown(){
1806     echo "Unknown option \"$1\"."
1807     echo "See $0 --help for available options."
1808     exit 1
1809 }
1810
1811 show_list() {
1812     suffix=_$1
1813     shift
1814     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1815     exit 0
1816 }
1817
1818 for opt do
1819     optval="${opt#*=}"
1820     case "$opt" in
1821     --extra-ldflags=*) add_ldflags $optval
1822     ;;
1823     --extra-libs=*) add_extralibs $optval
1824     ;;
1825     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1826     ;;
1827     --enable-debug=*) debuglevel="$optval"
1828     ;;
1829     --disable-everything)
1830     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1831     ;;
1832     --enable-*=*|--disable-*=*)
1833     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1834     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1835     eval list=\$$(toupper $thing)_LIST
1836     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1837     $action $(filter "$name" $list)
1838     ;;
1839     --enable-?*|--disable-?*)
1840     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1841     if is_in $option $COMPONENT_LIST; then
1842         test $action = disable && action=unset
1843         eval $action \$$(toupper ${option%s})_LIST
1844     elif is_in $option $CMDLINE_SELECT; then
1845         $action $option
1846     else
1847         die_unknown $opt
1848     fi
1849     ;;
1850     --list-*)
1851         NAME="${opt#--list-}"
1852         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1853         NAME=${NAME%s}
1854         eval show_list $NAME \$$(toupper $NAME)_LIST
1855     ;;
1856     --help|-h) show_help
1857     ;;
1858     *)
1859     optname="${opt%%=*}"
1860     optname="${optname#--}"
1861     optname=$(echo "$optname" | sed 's/-/_/g')
1862     if is_in $optname $CMDLINE_SET; then
1863         eval $optname='$optval'
1864     elif is_in $optname $CMDLINE_APPEND; then
1865         append $optname "$optval"
1866     else
1867          die_unknown $opt
1868     fi
1869     ;;
1870     esac
1871 done
1872
1873 disabled logging && logfile=/dev/null
1874
1875 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1876 set >> $logfile
1877
1878 test -n "$cross_prefix" && enable cross_compile
1879
1880 if enabled cross_compile; then
1881     test -n "$arch" && test -n "$target_os" ||
1882         die "Must specify target arch and OS when cross-compiling"
1883 fi
1884
1885 set_default arch target_os
1886
1887 ar_default="${cross_prefix}${ar_default}"
1888 cc_default="${cross_prefix}${cc_default}"
1889 nm_default="${cross_prefix}${nm_default}"
1890 pkg_config_default="${cross_prefix}${pkg_config_default}"
1891 ranlib="${cross_prefix}${ranlib}"
1892
1893 sysinclude_default="${sysroot}/usr/include"
1894
1895 set_default cc nm pkg_config sysinclude
1896 enabled cross_compile || host_cc_default=$cc
1897 set_default host_cc
1898
1899 if ! $pkg_config --version >/dev/null 2>&1; then
1900     warn "$pkg_config not found, library detection may fail."
1901     pkg_config=false
1902 fi
1903
1904 exesuf() {
1905     case $1 in
1906         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1907     esac
1908 }
1909
1910 EXESUF=$(exesuf $target_os)
1911 HOSTEXESUF=$(exesuf $host_os)
1912
1913 # set temporary file name
1914 : ${TMPDIR:=$TEMPDIR}
1915 : ${TMPDIR:=$TMP}
1916 : ${TMPDIR:=/tmp}
1917
1918 if ! check_cmd mktemp -u XXXXXX; then
1919     # simple replacement for missing mktemp
1920     # NOT SAFE FOR GENERAL USE
1921     mktemp(){
1922         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1923     }
1924 fi
1925
1926 tmpfile(){
1927     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1928         (set -C; exec > $tmp) 2>/dev/null ||
1929         die "Unable to create temporary file in $TMPDIR."
1930     append TMPFILES $tmp
1931     eval $1=$tmp
1932 }
1933
1934 trap 'rm -f -- $TMPFILES' EXIT
1935
1936 tmpfile TMPASM .asm
1937 tmpfile TMPC   .c
1938 tmpfile TMPE   $EXESUF
1939 tmpfile TMPH   .h
1940 tmpfile TMPO   .o
1941 tmpfile TMPS   .S
1942 tmpfile TMPSH  .sh
1943 tmpfile TMPV   .ver
1944
1945 unset -f mktemp
1946
1947 chmod +x $TMPE
1948
1949 # make sure we can execute files in $TMPDIR
1950 cat > $TMPSH 2>> $logfile <<EOF
1951 #! /bin/sh
1952 EOF
1953 chmod +x $TMPSH >> $logfile 2>&1
1954 if ! $TMPSH >> $logfile 2>&1; then
1955     cat <<EOF
1956 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1957 variable to another directory and make sure that it is not mounted noexec.
1958 EOF
1959     die "Sanity test failed."
1960 fi
1961
1962 filter_asflags=echo
1963 filter_cflags=echo
1964 filter_cppflags=echo
1965
1966 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1967     cc_type=llvm_gcc
1968     cc_version=__VERSION__
1969     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1970     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1971     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1972     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1973     speed_cflags='-O3'
1974     size_cflags='-Os'
1975 elif $cc -v 2>&1 | grep -qi ^gcc; then
1976     cc_type=gcc
1977     cc_version=__VERSION__
1978     gcc_version=$($cc --version | head -n1)
1979     gcc_basever=$($cc -dumpversion)
1980     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1981     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1982     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1983     if ! $cc -dumpversion | grep -q '^2\.'; then
1984         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1985         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1986     fi
1987     speed_cflags='-O3'
1988     size_cflags='-Os'
1989 elif $cc --version 2>/dev/null | grep -q Intel; then
1990     cc_type=icc
1991     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1992     cc_ident=$($cc --version | head -n1)
1993     icc_version=$($cc -dumpversion)
1994     CC_DEPFLAGS='-MMD'
1995     AS_DEPFLAGS='-MMD'
1996     speed_cflags='-O3'
1997     size_cflags='-Os'
1998     noopt_cflags='-O1'
1999 elif $cc -v 2>&1 | grep -q xlc; then
2000     cc_type=xlc
2001     cc_version="AV_STRINGIFY(__IBMC__)"
2002     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2003     speed_cflags='-O5'
2004     size_cflags='-O5 -qcompact'
2005 elif $cc -V 2>/dev/null | grep -q Compaq; then
2006     cc_type=ccc
2007     cc_version="AV_STRINGIFY(__DECC_VER)"
2008     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2009     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2010     debuglevel=3
2011     add_ldflags -Wl,-z,now # calls to libots crash without this
2012     speed_cflags='-fast'
2013     size_cflags='-O1'
2014 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2015     test -d "$sysroot" || die "No valid sysroot specified."
2016     cc_type=armcc
2017     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2018     cc_ident=$($cc --vsn | head -n1)
2019     armcc_conf="$PWD/armcc.conf"
2020     $cc --arm_linux_configure                 \
2021         --arm_linux_config_file="$armcc_conf" \
2022         --configure_sysroot="$sysroot"        \
2023         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2024         die "Error creating armcc configuration file."
2025     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2026     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2027     as_default="${cross_prefix}gcc"
2028     CC_DEPFLAGS='-MMD'
2029     AS_DEPFLAGS='-MMD'
2030     speed_cflags='-O3'
2031     size_cflags='-Os'
2032     filter_asflags="filter_out -W${armcc_opt}*"
2033 elif $cc -version 2>/dev/null | grep -q TMS470; then
2034     cc_type=tms470
2035     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2036     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2037     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2038     CC_O='-fr=$(@D)'
2039     as_default="${cross_prefix}gcc"
2040     ld_default="${cross_prefix}gcc"
2041     TMPO=$(basename $TMPC .c).o
2042     append TMPFILES $TMPO
2043     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2044     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2045     AS_DEPFLAGS='-MMD'
2046     speed_cflags='-O3 -mf=5'
2047     size_cflags='-O3 -mf=2'
2048     filter_cflags=tms470_flags
2049     tms470_flags(){
2050         for flag; do
2051             case $flag in
2052                 -march=*|-mcpu=*)
2053                     case "${flag#*=}" in
2054                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2055                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2056                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2057                         armv6*|arm11*)          echo -mv=6   ;;
2058                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2059                                                 echo -mv=5e  ;;
2060                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2061                     esac
2062                     ;;
2063                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2064                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2065                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2066                 -msoft-float)   echo --float_support=vfplib       ;;
2067                 -O[0-3]|-mf=*)  echo $flag                        ;;
2068                 -g)             echo -g -mn                       ;;
2069                 -pds=*)         echo $flag                        ;;
2070             esac
2071         done
2072     }
2073 elif $cc -v 2>&1 | grep -q clang; then
2074     cc_type=clang
2075     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2076         cc_version=__clang_version__ || cc_version=__VERSION__
2077     cc_ident=$($cc --version | head -n1)
2078     CC_DEPFLAGS='-MMD'
2079     AS_DEPFLAGS='-MMD'
2080     speed_cflags='-O3'
2081     size_cflags='-Os'
2082 elif $cc -V 2>&1 | grep -q Sun; then
2083     cc_type=suncc
2084     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2085     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2086     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2087     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2088     add_ldflags -xc99
2089     speed_cflags='-O5'
2090     size_cflags='-O5 -xspace'
2091     filter_cflags=suncc_flags
2092     suncc_flags(){
2093         for flag; do
2094             case $flag in
2095                 -march=*|-mcpu=*)
2096                     case "${flag#*=}" in
2097                         native)                   echo -xtarget=native       ;;
2098                         v9|niagara)               echo -xarch=sparc          ;;
2099                         ultrasparc)               echo -xarch=sparcvis       ;;
2100                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2101                         i586|pentium)             echo -xchip=pentium        ;;
2102                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2103                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2104                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2105                         pentium4*)          echo -xtarget=pentium4           ;;
2106                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2107                         *-sse3)             echo -xarch=sse3                 ;;
2108                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2109                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2110                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2111                         k8|opteron|athlon64|athlon-fx)
2112                                                   echo -xarch=sse2a          ;;
2113                         athlon*)                  echo -xarch=pentium_proa   ;;
2114                     esac
2115                     ;;
2116                 -std=c99)             echo -xc99              ;;
2117                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2118                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2119                 -W*,*)                echo $flag              ;;
2120                 -f*-*|-W*)                                    ;;
2121                 *)                    echo $flag              ;;
2122             esac
2123         done
2124     }
2125 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2126     cc_type=pathscale
2127     cc_version=__PATHSCALE__
2128     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2129     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2131     speed_cflags='-O2'
2132     size_cflags='-Os'
2133     filter_cflags='filter_out -Wdisabled-optimization'
2134 elif $cc -v 2>&1 | grep -q Open64; then
2135     cc_type=open64
2136     cc_version=__OPEN64__
2137     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2138     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2139     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2140     speed_cflags='-O2'
2141     size_cflags='-Os'
2142     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2143 fi
2144
2145 test -n "$cc_type" && enable $cc_type ||
2146     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2147
2148 : ${as_default:=$cc}
2149 : ${dep_cc_default:=$cc}
2150 : ${ld_default:=$cc}
2151 set_default ar as dep_cc ld
2152
2153 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2154 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2155
2156 add_cflags $extra_cflags
2157 add_asflags $extra_cflags
2158
2159 if test -n "$sysroot"; then
2160     case "$cc_type" in
2161         gcc|llvm_gcc|clang)
2162             add_cppflags --sysroot="$sysroot"
2163             add_ldflags --sysroot="$sysroot"
2164         ;;
2165         tms470)
2166             add_cppflags -I"$sysinclude"
2167             add_ldflags  --sysroot="$sysroot"
2168         ;;
2169     esac
2170 fi
2171
2172 if test "$cpu" = host; then
2173     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2174
2175     case "$cc_type" in
2176         gcc|llvm_gcc)
2177             check_native(){
2178                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2179                 sed -n "/cc1.*$1=/{
2180                             s/.*$1=\\([^ ]*\\).*/\\1/
2181                             p
2182                             q
2183                         }" $TMPE
2184             }
2185             cpu=$(check_native -march || check_native -mcpu)
2186         ;;
2187     esac
2188
2189     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2190 fi
2191
2192 # Deal with common $arch aliases
2193 case "$arch" in
2194     arm*)
2195         arch="arm"
2196     ;;
2197     mips|mipsel|IP*)
2198         arch="mips"
2199     ;;
2200     mips64*)
2201         arch="mips"
2202         subarch="mips64"
2203     ;;
2204     parisc|hppa)
2205         arch="parisc"
2206     ;;
2207     parisc64|hppa64)
2208         arch="parisc"
2209         subarch="parisc64"
2210     ;;
2211     "Power Macintosh"|ppc|powerpc)
2212         arch="ppc"
2213     ;;
2214     ppc64|powerpc64)
2215         arch="ppc"
2216         subarch="ppc64"
2217     ;;
2218     s390|s390x)
2219         arch="s390"
2220     ;;
2221     sh4|sh)
2222         arch="sh4"
2223     ;;
2224     sun4u|sparc64)
2225         arch="sparc"
2226         subarch="sparc64"
2227     ;;
2228     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2229         arch="x86"
2230     ;;
2231 esac
2232
2233 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2234 enable $arch
2235
2236 # Add processor-specific flags
2237 if test "$cpu" = generic; then
2238     : do nothing
2239 elif enabled ppc; then
2240
2241     case $(tolower $cpu) in
2242         601|ppc601|powerpc601)
2243             cpuflags="-mcpu=601"
2244             disable altivec
2245         ;;
2246         603*|ppc603*|powerpc603*)
2247             cpuflags="-mcpu=603"
2248             disable altivec
2249         ;;
2250         604*|ppc604*|powerpc604*)
2251             cpuflags="-mcpu=604"
2252             disable altivec
2253         ;;
2254         g3|75*|ppc75*|powerpc75*)
2255             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2256             disable altivec
2257         ;;
2258         g4|745*|ppc745*|powerpc745*)
2259             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2260         ;;
2261         74*|ppc74*|powerpc74*)
2262             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2263         ;;
2264         g5|970|ppc970|powerpc970|power4*)
2265             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2266         ;;
2267         cell)
2268             cpuflags="-mcpu=cell"
2269             enable ldbrx
2270         ;;
2271         e500v2)
2272             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2273             disable altivec
2274         ;;
2275         e500)
2276             cpuflags="-mcpu=8540 -mhard-float"
2277             disable altivec
2278         ;;
2279     esac
2280
2281 elif enabled x86; then
2282
2283     case $cpu in
2284         i[345]86|pentium)
2285             cpuflags="-march=$cpu"
2286             disable mmx
2287         ;;
2288         # targets that do NOT support conditional mov (cmov)
2289         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2290             cpuflags="-march=$cpu"
2291             disable cmov
2292         ;;
2293         # targets that do support conditional mov (cmov)
2294         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2295             cpuflags="-march=$cpu"
2296             enable cmov
2297             enable fast_cmov
2298         ;;
2299         # targets that do support conditional mov but on which it's slow
2300         pentium4|pentium4m|prescott|nocona)
2301             cpuflags="-march=$cpu"
2302             enable cmov
2303             disable fast_cmov
2304         ;;
2305     esac
2306
2307 elif enabled sparc; then
2308
2309     case $cpu in
2310         niagara)
2311             cpuflags="-mcpu=$cpu"
2312             disable vis
2313         ;;
2314         sparc64)
2315             cpuflags="-mcpu=v9"
2316         ;;
2317     esac
2318
2319 elif enabled arm; then
2320
2321     case $cpu in
2322         armv*)
2323             cpuflags="-march=$cpu"
2324             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2325         ;;
2326         *)
2327             cpuflags="-mcpu=$cpu"
2328             case $cpu in
2329                 cortex-a*)                               subarch=armv7a  ;;
2330                 cortex-r*)                               subarch=armv7r  ;;
2331                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2332                 arm11*)                                  subarch=armv6   ;;
2333                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2334                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2335             esac
2336         ;;
2337     esac
2338
2339 elif enabled alpha; then
2340
2341     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2342
2343 elif enabled bfin; then
2344
2345     cpuflags="-mcpu=$cpu"
2346
2347 elif enabled mips; then
2348
2349     cpuflags="-march=$cpu"
2350
2351 elif enabled avr32; then
2352
2353     case $cpu in
2354         ap7[02]0[0-2])
2355             subarch="avr32_ap"
2356             cpuflags="-mpart=$cpu"
2357         ;;
2358         ap)
2359             subarch="avr32_ap"
2360             cpuflags="-march=$cpu"
2361         ;;
2362         uc3[ab]*)
2363             subarch="avr32_uc"
2364             cpuflags="-mcpu=$cpu"
2365         ;;
2366         uc)
2367             subarch="avr32_uc"
2368             cpuflags="-march=$cpu"
2369         ;;
2370     esac
2371
2372 fi
2373
2374 add_cflags $cpuflags
2375 add_asflags $cpuflags
2376
2377 # compiler sanity check
2378 check_exec <<EOF
2379 int main(void){ return 0; }
2380 EOF
2381 if test "$?" != 0; then
2382     echo "$cc is unable to create an executable file."
2383     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2384         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2385         echo "Only do this if you know what cross compiling means."
2386     fi
2387     die "C compiler test failed."
2388 fi
2389
2390 add_cppflags -D_ISOC99_SOURCE
2391 check_cflags -std=c99
2392 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2393 #include <stdlib.h>
2394 EOF
2395 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2396 #include <stdlib.h>
2397 EOF
2398
2399 check_host_cflags -std=c99
2400 check_host_cflags -Wall
2401
2402 case "$arch" in
2403     alpha|ia64|mips|parisc|sparc)
2404         spic=$shared
2405     ;;
2406     x86)
2407         subarch="x86_32"
2408         check_cc <<EOF && subarch="x86_64"
2409         int test[(int)sizeof(char*) - 7];
2410 EOF
2411         if test "$subarch" = "x86_64"; then
2412             spic=$shared
2413         fi
2414     ;;
2415 esac
2416
2417 enable $subarch
2418 enabled spic && enable pic
2419
2420 # OS specific
2421 case $target_os in
2422     haiku)
2423         prefix_default="/boot/common"
2424         network_extralibs="-lnetwork"
2425         host_libs=
2426         ;;
2427     sunos)
2428         AVSERVERLDFLAGS=""
2429         SHFLAGS='-shared -Wl,-h,$$(@F)'
2430         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2431         network_extralibs="-lsocket -lnsl"
2432         add_cppflags -D__EXTENSIONS__
2433         # When using suncc to build, the Solaris linker will mark
2434         # an executable with each instruction set encountered by
2435         # the Solaris assembler.  As our libraries contain their own
2436         # guards for processor-specific code, instead suppress
2437         # generation of the HWCAPS ELF section on Solaris x86 only.
2438         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2439         nm_opts='-P -g'
2440         ;;
2441     netbsd)
2442         disable symver
2443         oss_indev_extralibs="-lossaudio"
2444         oss_outdev_extralibs="-lossaudio"
2445         ;;
2446     openbsd)
2447         enable malloc_aligned
2448         # On OpenBSD 4.5. the compiler does not use PIC unless
2449         # explicitly using -fPIC. Libav builds fine without PIC,
2450         # however the generated executable will not do anything
2451         # (simply quits with exit-code 1, no crash, no output).
2452         # Thus explicitly enable PIC here.
2453         enable pic
2454         disable symver
2455         SHFLAGS='-shared'
2456         oss_indev_extralibs="-lossaudio"
2457         oss_outdev_extralibs="-lossaudio"
2458         ;;
2459     dragonfly)
2460         enable malloc_aligned
2461         disable symver
2462         ;;
2463     freebsd)
2464         enable malloc_aligned
2465         ;;
2466     bsd/os)
2467         add_extralibs -lpoll -lgnugetopt
2468         ;;
2469     darwin)
2470         enable malloc_aligned
2471         gas="gas-preprocessor.pl $cc"
2472         enabled ppc && add_asflags -force_cpusubtype_ALL
2473         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2474         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2475         add_ldflags -Wl,-dynamic,-search_paths_first
2476         SLIBSUF=".dylib"
2477         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2478         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2479         AVSERVERLDFLAGS=-Wl,-bind_at_load
2480         objformat="macho"
2481         enabled x86_64 && objformat="macho64"
2482         enabled_any pic shared ||
2483             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2484         ;;
2485     mingw32*)
2486         if test $target_os = "mingw32ce"; then
2487             disable network
2488         else
2489             target_os=mingw32
2490         fi
2491         LIBTARGET=i386
2492         if enabled x86_64; then
2493             enable malloc_aligned
2494             LIBTARGET="i386:x86-64"
2495         elif enabled arm; then
2496             LIBTARGET=arm-wince
2497         fi
2498         shlibdir_default="$bindir_default"
2499         SLIBPREF=""
2500         SLIBSUF=".dll"
2501         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2502         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2503         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2504         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2505         SLIB_INSTALL_LINKS=
2506         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2507         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2508         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'
2509         objformat="win32"
2510         dlltool="${cross_prefix}dlltool"
2511         enable dos_paths
2512         check_cflags -fno-common
2513         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2514                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2515                 die "ERROR: MinGW runtime version must be >= 3.15."
2516         add_cppflags -U__STRICT_ANSI__
2517         ;;
2518     cygwin*)
2519         target_os=cygwin
2520         shlibdir_default="$bindir_default"
2521         SLIBPREF="cyg"
2522         SLIBSUF=".dll"
2523         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2524         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2525         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2526         objformat="win32"
2527         enable dos_paths
2528         check_cflags -fno-common
2529         add_cppflags -U__STRICT_ANSI__
2530         ;;
2531     *-dos|freedos|opendos)
2532         network_extralibs="-lsocket"
2533         objformat="coff"
2534         enable dos_paths
2535         add_cppflags -U__STRICT_ANSI__
2536         ;;
2537     linux)
2538         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2539         enable dv1394
2540         ;;
2541     irix*)
2542         target_os=irix
2543         ranlib="echo ignoring ranlib"
2544         ;;
2545     os/2*)
2546         ln_s="cp -f"
2547         objformat="aout"
2548         add_cppflags -D_GNU_SOURCE
2549         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2550         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2551         AVSERVERLDFLAGS=""
2552         LIBSUF="_s.a"
2553         SLIBPREF=""
2554         SLIBSUF=".dll"
2555         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2556         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2557         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2558           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2559           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2560           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2561           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2562           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2563         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2564           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2565         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2566         enable dos_paths
2567         ;;
2568     gnu/kfreebsd)
2569         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2570         ;;
2571     gnu)
2572         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2573         ;;
2574     qnx)
2575         add_cppflags -D_QNX_SOURCE
2576         network_extralibs="-lsocket"
2577         ;;
2578     symbian)
2579         SLIBSUF=".dll"
2580         enable dos_paths
2581         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2582         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2583         add_ldflags -Wl,--target1-abs,--no-undefined \
2584                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2585                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2586         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2587                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2588                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2589         ;;
2590     none)
2591         ;;
2592     *)
2593         die "Unknown OS '$target_os'."
2594         ;;
2595 esac
2596
2597 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2598
2599 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2600
2601 set_default $PATHS_LIST
2602
2603 # we need to build at least one lib type
2604 if ! enabled_any static shared; then
2605     cat <<EOF
2606 At least one library type must be built.
2607 Specify --enable-static to build the static libraries or --enable-shared to
2608 build the shared libraries as well. To only build the shared libraries specify
2609 --disable-static in addition to --enable-shared.
2610 EOF
2611     exit 1;
2612 fi
2613
2614 die_license_disabled() {
2615     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2616 }
2617
2618 die_license_disabled gpl libcdio
2619 die_license_disabled gpl libx264
2620 die_license_disabled gpl libxavs
2621 die_license_disabled gpl libxvid
2622 die_license_disabled gpl x11grab
2623
2624 die_license_disabled nonfree libfaac
2625 die_license_disabled nonfree openssl
2626
2627 die_license_disabled version3 libopencore_amrnb
2628 die_license_disabled version3 libopencore_amrwb
2629 die_license_disabled version3 libvo_aacenc
2630 die_license_disabled version3 libvo_amrwbenc
2631
2632 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2633
2634 disabled optimizations || check_cflags -fomit-frame-pointer
2635
2636 enable_pic() {
2637     enable pic
2638     add_cppflags -DPIC
2639     add_cflags   -fPIC
2640     add_asflags  -fPIC
2641 }
2642
2643 enabled pic && enable_pic
2644
2645 check_cc <<EOF || die "Symbol mangling check failed."
2646 int ff_extern;
2647 EOF
2648 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2649 extern_prefix=${sym%%ff_extern*}
2650
2651 check_cc <<EOF && enable inline_asm
2652 void foo(void) { __asm__ volatile ("" ::); }
2653 EOF
2654
2655 _restrict=
2656 for restrict_keyword in restrict __restrict__ __restrict; do
2657     check_cc <<EOF && _restrict=$restrict_keyword && break
2658 void foo(char * $restrict_keyword p);
2659 EOF
2660 done
2661
2662 check_cc <<EOF && enable attribute_packed
2663 struct { int x; } __attribute__((packed)) x;
2664 EOF
2665
2666 check_cc <<EOF && enable attribute_may_alias
2667 union { int x; } __attribute__((may_alias)) x;
2668 EOF
2669
2670 check_cc <<EOF || die "endian test failed"
2671 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2672 EOF
2673 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2674
2675 if enabled alpha; then
2676
2677     check_cflags -mieee
2678
2679 elif enabled arm; then
2680
2681     enabled thumb && check_cflags -mthumb || check_cflags -marm
2682     nogas=die
2683
2684     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2685         enable vfp_args
2686     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2687         case "${cross_prefix:-$cc}" in
2688             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2689             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2690 __asm__ (".eabi_attribute 28, 1");
2691 int main(void) { return 0; }
2692 EOF
2693         esac
2694         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2695     fi
2696
2697     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2698     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2699     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2700     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2701     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2702     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2703
2704     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2705
2706     enabled_all armv6t2 shared !pic && enable_pic
2707
2708 elif enabled mips; then
2709
2710     check_asm loongson '"dmult.g $1, $2, $3"'
2711     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2712
2713 elif enabled ppc; then
2714
2715     enable local_aligned_8 local_aligned_16
2716
2717     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2718     check_asm ibm_asm   '"add 0, 0, 0"'
2719     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2720     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2721
2722     # AltiVec flags: The FSF version of GCC differs from the Apple version
2723     if enabled altivec; then
2724         nogas=warn
2725         check_cflags -maltivec -mabi=altivec &&
2726         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2727         check_cflags -faltivec
2728
2729         # check if our compiler supports Motorola AltiVec C API
2730         check_cc <<EOF || disable altivec
2731 $inc_altivec_h
2732 int main(void) {
2733     vector signed int v1, v2, v3;
2734     v1 = vec_add(v2,v3);
2735     return 0;
2736 }
2737 EOF
2738
2739         # check if our compiler supports braces for vector declarations
2740         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2741 $inc_altivec_h
2742 int main (void) { (vector int) {1}; return 0; }
2743 EOF
2744     fi
2745
2746 elif enabled sparc; then
2747
2748     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2749         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2750
2751 elif enabled x86; then
2752
2753     enable local_aligned_8 local_aligned_16
2754
2755     # check whether EBP is available on x86
2756     # As 'i' is stored on the stack, this program will crash
2757     # if the base pointer is used to access it because the
2758     # base pointer is cleared in the inline assembly code.
2759     check_exec_crash <<EOF && enable ebp_available
2760     volatile int i=0;
2761     __asm__ volatile (
2762         "xorl %%ebp, %%ebp"
2763     ::: "%ebp");
2764     return i;
2765 EOF
2766
2767     # check whether EBX is available on x86
2768     check_asm ebx_available '""::"b"(0)' &&
2769         check_asm ebx_available '"":::"%ebx"'
2770
2771     # check whether xmm clobbers are supported
2772     check_asm xmm_clobbers '"":::"%xmm0"'
2773
2774     # check whether binutils is new enough to compile SSSE3/MMX2
2775     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2776     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2777
2778     if ! disabled_any asm mmx yasm; then
2779         if check_cmd $yasmexe --version; then
2780             enabled x86_64 && yasm_extra="-m amd64"
2781             yasm_debug="-g dwarf2"
2782         elif check_cmd nasm -v; then
2783             yasmexe=nasm
2784             yasm_debug="-g -F dwarf"
2785             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2786         fi
2787
2788         YASMFLAGS="-f $objformat $yasm_extra"
2789         enabled pic               && append YASMFLAGS "-DPIC"
2790         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2791         case "$objformat" in
2792             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2793         esac
2794
2795         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2796             die "yasm not found, use --disable-yasm for a crippled build"
2797         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2798     fi
2799
2800     case "$cpu" in
2801         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2802             disable fast_clz
2803         ;;
2804     esac
2805
2806 fi
2807
2808 if enabled asm; then
2809     as=${gas:=$as}
2810     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2811         $nogas "GNU assembler not found, install gas-preprocessor"
2812 fi
2813
2814 check_ldflags -Wl,--as-needed
2815
2816 if check_func dlopen; then
2817     ldl=
2818 elif check_func dlopen -ldl; then
2819     ldl=-ldl
2820 fi
2821
2822 if enabled network; then
2823     check_type "sys/types.h sys/socket.h" socklen_t
2824     check_type netdb.h "struct addrinfo"
2825     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2826     check_type netinet/in.h "struct sockaddr_in6"
2827     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2828     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2829     # Prefer arpa/inet.h over winsock2
2830     if check_header arpa/inet.h ; then
2831         check_func closesocket
2832     elif check_header winsock2.h ; then
2833         check_func_headers winsock2.h closesocket -lws2 && \
2834             network_extralibs="-lws2" || \
2835         { check_func_headers winsock2.h closesocket -lws2_32 && \
2836             network_extralibs="-lws2_32"; }
2837         check_type ws2tcpip.h socklen_t
2838         check_type ws2tcpip.h "struct addrinfo"
2839         check_type ws2tcpip.h "struct ipv6_mreq"
2840         check_type ws2tcpip.h "struct sockaddr_in6"
2841         check_type ws2tcpip.h "struct sockaddr_storage"
2842         check_struct winsock2.h "struct sockaddr" sa_len
2843     else
2844         disable network
2845     fi
2846 fi
2847
2848 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2849 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2850
2851 check_func  fcntl
2852 check_func  fork
2853 check_func  getaddrinfo $network_extralibs
2854 check_func  gethrtime
2855 check_func  getrusage
2856 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2857 check_func  inet_aton $network_extralibs
2858 check_func  isatty
2859 check_func  localtime_r
2860 check_func  ${malloc_prefix}memalign            && enable memalign
2861 check_func  mkstemp
2862 check_func  mmap
2863 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2864 check_func  setrlimit
2865 check_func  strerror_r
2866 check_func  strptime
2867 check_func  strtok_r
2868 check_func  sched_getaffinity
2869 check_func  sysconf
2870 check_func  sysctl
2871 check_func_headers io.h setmode
2872 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2873 check_func_headers windows.h GetProcessAffinityMask
2874 check_func_headers windows.h GetProcessTimes
2875 check_func_headers windows.h MapViewOfFile
2876 check_func_headers windows.h VirtualAlloc
2877
2878 check_header dlfcn.h
2879 check_header dxva2api.h
2880 check_header malloc.h
2881 check_header poll.h
2882 check_header sys/mman.h
2883 check_header sys/param.h
2884 check_header sys/resource.h
2885 check_header sys/select.h
2886 check_header vdpau/vdpau.h
2887 check_header vdpau/vdpau_x11.h
2888 check_header X11/extensions/XvMClib.h
2889
2890 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2891 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2892
2893 if ! disabled w32threads && ! enabled pthreads; then
2894     check_func _beginthreadex && enable w32threads
2895 fi
2896
2897 # check for some common methods of building with pthread support
2898 # do this before the optional library checks as some of them require pthreads
2899 if ! disabled pthreads && ! enabled w32threads; then
2900     enable pthreads
2901     if check_func pthread_create; then
2902         :
2903     elif check_func pthread_create -pthread; then
2904         add_cflags -pthread
2905         add_extralibs -pthread
2906     elif check_func pthread_create -pthreads; then
2907         add_cflags -pthreads
2908         add_extralibs -pthreads
2909     elif check_func pthread_create -lpthreadGC2; then
2910         add_extralibs -lpthreadGC2
2911     elif ! check_lib pthread.h pthread_create -lpthread; then
2912         disable pthreads
2913     fi
2914 fi
2915
2916 for thread in $THREADS_LIST; do
2917     if enabled $thread; then
2918         test -n "$thread_type" &&
2919             die "ERROR: Only one thread type must be selected." ||
2920             thread_type="$thread"
2921     fi
2922 done
2923
2924 check_lib math.h sin -lm && LIBM="-lm"
2925 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2926
2927 check_mathfunc exp2
2928 check_mathfunc exp2f
2929 check_mathfunc llrint
2930 check_mathfunc llrintf
2931 check_mathfunc log2
2932 check_mathfunc log2f
2933 check_mathfunc lrint
2934 check_mathfunc lrintf
2935 check_mathfunc round
2936 check_mathfunc roundf
2937 check_mathfunc trunc
2938 check_mathfunc truncf
2939
2940 # these are off by default, so fail if requested and not available
2941 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2942 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2943 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2944 enabled libdirac   && require_pkg_config dirac                          \
2945     "libdirac_decoder/dirac_parser.h"  \
2946     "dirac_decoder_init"
2947 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2948 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2949 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2950 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2951 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2952 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2953 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2954 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2955 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2956 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2957 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2958 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2959 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2960 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2961 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2962 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2963 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2964 enabled libvpx     && {
2965     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2966                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2967     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2968                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2969 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2970                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2971                         die "ERROR: libx264 version must be >= 0.118."; }
2972 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2973 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2974 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2975                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2976                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2977                         die "ERROR: openssl not found"; }
2978
2979 # libdc1394 check
2980 if enabled libdc1394; then
2981     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2982         enable libdc1394_2; } ||
2983     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2984         enable libdc1394_1; } ||
2985     die "ERROR: No version of libdc1394 found "
2986 fi
2987
2988 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
2989     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2990     enable sdl &&
2991     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2992 fi
2993
2994 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2995
2996 check_header linux/fb.h
2997 check_header linux/videodev2.h
2998 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2999
3000 check_header sys/videoio.h
3001
3002 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3003 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3004 # w32api 3.12 had it defined wrong
3005 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3006
3007 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3008 { check_header dev/bktr/ioctl_meteor.h &&
3009   check_header dev/bktr/ioctl_bt848.h; } ||
3010 { check_header machine/ioctl_meteor.h &&
3011   check_header machine/ioctl_bt848.h; } ||
3012 { check_header dev/video/meteor/ioctl_meteor.h &&
3013   check_header dev/video/bktr/ioctl_bt848.h; } ||
3014 check_header dev/ic/bt8xx.h
3015
3016 check_header sndio.h
3017 check_header sys/soundcard.h
3018 check_header soundcard.h
3019
3020 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3021
3022 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3023
3024 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3025
3026 enabled libcdio &&
3027     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3028
3029 enabled x11grab                                           &&
3030 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3031 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3032 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3033
3034 # check for VDA header
3035 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3036     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3037 fi
3038
3039 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3040 check_cpp_condition \
3041     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3042     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3043       disable vdpau; }
3044 fi
3045
3046 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3047
3048 # add some useful compiler flags if supported
3049 check_cflags -Wdeclaration-after-statement
3050 check_cflags -Wall
3051 check_cflags -Wno-parentheses
3052 check_cflags -Wno-switch
3053 check_cflags -Wno-format-zero-length
3054 check_cflags -Wdisabled-optimization
3055 check_cflags -Wpointer-arith
3056 check_cflags -Wredundant-decls
3057 check_cflags -Wno-pointer-sign
3058 check_cflags -Wcast-qual
3059 check_cflags -Wwrite-strings
3060 check_cflags -Wtype-limits
3061 check_cflags -Wundef
3062 check_cflags -Wmissing-prototypes
3063 check_cflags -Wstrict-prototypes
3064 enabled extra_warnings && check_cflags -Winline
3065
3066 # add some linker flags
3067 check_ldflags -Wl,--warn-common
3068 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3069 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3070
3071 enabled xmm_clobber_test &&                             \
3072     check_ldflags -Wl,--wrap,avcodec_open2              \
3073                   -Wl,--wrap,avcodec_decode_audio4      \
3074                   -Wl,--wrap,avcodec_decode_video2      \
3075                   -Wl,--wrap,avcodec_decode_subtitle2   \
3076                   -Wl,--wrap,avcodec_encode_audio2      \
3077                   -Wl,--wrap,avcodec_encode_video       \
3078                   -Wl,--wrap,avcodec_encode_subtitle    \
3079                   -Wl,--wrap,sws_scale ||               \
3080     disable xmm_clobber_test
3081
3082 echo "X{};" > $TMPV
3083 if test_ldflags -Wl,--version-script,$TMPV; then
3084     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3085     check_cc <<EOF && enable symver_asm_label
3086 void ff_foo(void) __asm__ ("av_foo@VERSION");
3087 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3088 EOF
3089     check_cc <<EOF && enable symver_gnu_asm
3090 __asm__(".symver ff_foo,av_foo@VERSION");
3091 void ff_foo(void) {}
3092 EOF
3093 fi
3094
3095 if [ -n "$optflags" ]; then
3096     add_cflags $optflags
3097 elif enabled small; then
3098     add_cflags $size_cflags
3099 elif enabled optimizations; then
3100     add_cflags $speed_cflags
3101 else
3102     add_cflags $noopt_cflags
3103 fi
3104 check_cflags -fno-math-errno
3105 check_cflags -fno-signed-zeros
3106
3107 if enabled icc; then
3108     # Just warnings, no remarks
3109     check_cflags -w1
3110     # -wd: Disable following warnings
3111     # 144, 167, 556: -Wno-pointer-sign
3112     # 1292: attribute "foo" ignored
3113     # 10006: ignoring unknown option -fno-signed-zeros
3114     # 10148: ignoring unknown option -Wno-parentheses
3115     # 10156: ignoring option '-W'; no argument required
3116     check_cflags -wd144,167,556,1292,10006,10148,10156
3117     # 11030: Warning unknown option --as-needed
3118     # 10156: ignoring option '-export'; no argument required
3119     check_ldflags -wd10156,11030
3120     # Allow to compile with optimizations
3121     check_ldflags -march=$cpu
3122     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3123     enable ebp_available
3124     if enabled x86_32; then
3125         test ${icc_version%%.*} -ge 11 && \
3126             check_cflags -falign-stack=maintain-16-byte || \
3127             disable aligned_stack
3128     fi
3129 elif enabled ccc; then
3130     # disable some annoying warnings
3131     add_cflags -msg_disable cvtu32to64
3132     add_cflags -msg_disable embedcomment
3133     add_cflags -msg_disable needconstext
3134     add_cflags -msg_disable nomainieee
3135     add_cflags -msg_disable ptrmismatch1
3136     add_cflags -msg_disable unreachcode
3137 elif enabled gcc; then
3138     check_cflags -fno-tree-vectorize
3139     check_cflags -Werror=implicit-function-declaration
3140     check_cflags -Werror=missing-prototypes
3141     check_cflags -Werror=declaration-after-statement
3142 elif enabled llvm_gcc; then
3143     check_cflags -mllvm -stack-alignment=16
3144 elif enabled clang; then
3145     check_cflags -mllvm -stack-alignment=16
3146     check_cflags -Qunused-arguments
3147 elif enabled armcc; then
3148     # 2523: use of inline assembler is deprecated
3149     add_cflags -W${armcc_opt},--diag_suppress=2523
3150     add_cflags -W${armcc_opt},--diag_suppress=1207
3151     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3152     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3153     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3154     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3155 elif enabled tms470; then
3156     add_cflags -pds=824 -pds=837
3157 elif enabled pathscale; then
3158     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3159 fi
3160
3161 enabled_any $THREADS_LIST      && enable threads
3162
3163 check_deps $CONFIG_LIST       \
3164            $CONFIG_EXTRA      \
3165            $HAVE_LIST         \
3166            $ALL_COMPONENTS    \
3167            $ALL_TESTS         \
3168
3169 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3170
3171 ! enabled_any memalign posix_memalign malloc_aligned &&
3172     enabled_any $need_memalign && enable memalign_hack
3173
3174 echo "install prefix            $prefix"
3175 echo "source path               $source_path"
3176 echo "C compiler                $cc"
3177 echo "ARCH                      $arch ($cpu)"
3178 if test "$build_suffix" != ""; then
3179     echo "build suffix              $build_suffix"
3180 fi
3181 if test "$extra_version" != ""; then
3182     echo "version string suffix     $extra_version"
3183 fi
3184 echo "big-endian                ${bigendian-no}"
3185 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3186 if enabled x86; then
3187     echo "${yasmexe}                      ${yasm-no}"
3188     echo "MMX enabled               ${mmx-no}"
3189     echo "MMX2 enabled              ${mmx2-no}"
3190     echo "3DNow! enabled            ${amd3dnow-no}"
3191     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3192     echo "SSE enabled               ${sse-no}"
3193     echo "SSSE3 enabled             ${ssse3-no}"
3194     echo "AVX enabled               ${avx-no}"
3195     echo "CMOV enabled              ${cmov-no}"
3196     echo "CMOV is fast              ${fast_cmov-no}"
3197     echo "EBX available             ${ebx_available-no}"
3198     echo "EBP available             ${ebp_available-no}"
3199 fi
3200 if enabled arm; then
3201     echo "ARMv5TE enabled           ${armv5te-no}"
3202     echo "ARMv6 enabled             ${armv6-no}"
3203     echo "ARMv6T2 enabled           ${armv6t2-no}"
3204     echo "ARM VFP enabled           ${armvfp-no}"
3205     echo "NEON enabled              ${neon-no}"
3206 fi
3207 if enabled mips; then
3208     echo "MMI enabled               ${mmi-no}"
3209 fi
3210 if enabled ppc; then
3211     echo "AltiVec enabled           ${altivec-no}"
3212     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3213     echo "dcbzl available           ${dcbzl-no}"
3214 fi
3215 if enabled sparc; then
3216     echo "VIS enabled               ${vis-no}"
3217 fi
3218 echo "debug symbols             ${debug-no}"
3219 echo "optimize for size         ${small-no}"
3220 echo "optimizations             ${optimizations-no}"
3221 echo "static                    ${static-no}"
3222 echo "shared                    ${shared-no}"
3223 echo "new filter support        ${avfilter-no}"
3224 echo "network support           ${network-no}"
3225 echo "threading support         ${thread_type-no}"
3226 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3227 echo "SDL support               ${sdl-no}"
3228 echo "libdxva2 enabled          ${dxva2-no}"
3229 echo "libva enabled             ${vaapi-no}"
3230 echo "libvdpau enabled          ${vdpau-no}"
3231 echo "AVISynth enabled          ${avisynth-no}"
3232 echo "frei0r enabled            ${frei0r-no}"
3233 echo "gnutls enabled            ${gnutls-no}"
3234 echo "libcdio support           ${libcdio-no}"
3235 echo "libdc1394 support         ${libdc1394-no}"
3236 echo "libdirac enabled          ${libdirac-no}"
3237 echo "libfaac enabled           ${libfaac-no}"
3238 echo "libgsm enabled            ${libgsm-no}"
3239 echo "libmp3lame enabled        ${libmp3lame-no}"
3240 echo "libnut enabled            ${libnut-no}"
3241 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3242 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3243 echo "libopencv support         ${libopencv-no}"
3244 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3245 echo "libpulse enabled          ${libpulse-no}"
3246 echo "librtmp enabled           ${librtmp-no}"
3247 echo "libschroedinger enabled   ${libschroedinger-no}"
3248 echo "libspeex enabled          ${libspeex-no}"
3249 echo "libtheora enabled         ${libtheora-no}"
3250 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3251 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3252 echo "libvorbis enabled         ${libvorbis-no}"
3253 echo "libvpx enabled            ${libvpx-no}"
3254 echo "libx264 enabled           ${libx264-no}"
3255 echo "libxavs enabled           ${libxavs-no}"
3256 echo "libxvid enabled           ${libxvid-no}"
3257 echo "openssl enabled           ${openssl-no}"
3258 echo "zlib enabled              ${zlib-no}"
3259 echo "bzlib enabled             ${bzlib-no}"
3260 echo
3261
3262 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3263     echo "Enabled ${type}s:"
3264     eval list=\$$(toupper $type)_LIST
3265     print_enabled '_*' $list | sort | pr -r -3 -t
3266     echo
3267 done
3268
3269 license="LGPL version 2.1 or later"
3270 if enabled nonfree; then
3271     license="nonfree and unredistributable"
3272 elif enabled gplv3; then
3273     license="GPL version 3 or later"
3274 elif enabled lgplv3; then
3275     license="LGPL version 3 or later"
3276 elif enabled gpl; then
3277     license="GPL version 2 or later"
3278 fi
3279
3280 echo "License: $license"
3281
3282 echo "Creating config.mak and config.h..."
3283
3284 test -e Makefile || $ln_s "$source_path/Makefile" .
3285
3286 config_files="$TMPH config.mak"
3287
3288 cat > config.mak <<EOF
3289 # Automatically generated by configure - do not modify!
3290 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3291 prefix=$prefix
3292 LIBDIR=\$(DESTDIR)$libdir
3293 SHLIBDIR=\$(DESTDIR)$shlibdir
3294 INCDIR=\$(DESTDIR)$incdir
3295 BINDIR=\$(DESTDIR)$bindir
3296 DATADIR=\$(DESTDIR)$datadir
3297 MANDIR=\$(DESTDIR)$mandir
3298 SRC_PATH=$source_path
3299 CC_IDENT=$cc_ident
3300 ARCH=$arch
3301 CC=$cc
3302 AS=$as
3303 LD=$ld
3304 DEPCC=$dep_cc
3305 YASM=$yasmexe
3306 YASMDEP=$yasmexe
3307 AR=$ar
3308 RANLIB=$ranlib
3309 LN_S=$ln_s
3310 CPPFLAGS=$CPPFLAGS
3311 CFLAGS=$CFLAGS
3312 ASFLAGS=$ASFLAGS
3313 AS_O=$CC_O
3314 CC_O=$CC_O
3315 DLLTOOL=$dlltool
3316 LDFLAGS=$LDFLAGS
3317 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3318 SHFLAGS=$SHFLAGS
3319 YASMFLAGS=$YASMFLAGS
3320 BUILDSUF=$build_suffix
3321 FULLNAME=$FULLNAME
3322 LIBPREF=$LIBPREF
3323 LIBSUF=$LIBSUF
3324 LIBNAME=$LIBNAME
3325 SLIBPREF=$SLIBPREF
3326 SLIBSUF=$SLIBSUF
3327 EXESUF=$EXESUF
3328 EXTRA_VERSION=$extra_version
3329 DEPFLAGS=$DEPFLAGS
3330 CCDEP=$CCDEP
3331 ASDEP=$ASDEP
3332 CC_DEPFLAGS=$CC_DEPFLAGS
3333 AS_DEPFLAGS=$AS_DEPFLAGS
3334 HOSTCC=$host_cc
3335 HOSTCFLAGS=$host_cflags
3336 HOSTEXESUF=$HOSTEXESUF
3337 HOSTLDFLAGS=$host_ldflags
3338 HOSTLIBS=$host_libs
3339 TARGET_EXEC=$target_exec
3340 TARGET_PATH=$target_path
3341 SDL_LIBS=$sdl_libs
3342 SDL_CFLAGS=$sdl_cflags
3343 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3344 EXTRALIBS=$extralibs
3345 INSTALL=install
3346 LIBTARGET=${LIBTARGET}
3347 SLIBNAME=${SLIBNAME}
3348 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3349 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3350 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3351 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3352 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3353 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3354 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3355 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3356 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3357 EOF
3358
3359 get_version(){
3360     name=$1
3361     file=$source_path/$2
3362     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3363     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3364     lcname=$(tolower $name)
3365     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3366     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3367 }
3368
3369 get_version LIBAVCODEC  libavcodec/version.h
3370 get_version LIBAVDEVICE libavdevice/avdevice.h
3371 get_version LIBAVFILTER libavfilter/version.h
3372 get_version LIBAVFORMAT libavformat/version.h
3373 get_version LIBAVUTIL   libavutil/avutil.h
3374 get_version LIBSWSCALE  libswscale/swscale.h
3375
3376 cat > $TMPH <<EOF
3377 /* Automatically generated by configure - do not modify! */
3378 #ifndef LIBAV_CONFIG_H
3379 #define LIBAV_CONFIG_H
3380 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3381 #define LIBAV_LICENSE "$(c_escape $license)"
3382 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3383 #define CC_TYPE "$cc_type"
3384 #define CC_VERSION $cc_version
3385 #define restrict $_restrict
3386 #define EXTERN_PREFIX "${extern_prefix}"
3387 #define EXTERN_ASM ${extern_prefix}
3388 #define SLIBSUF "$SLIBSUF"
3389 EOF
3390
3391 test -n "$malloc_prefix" &&
3392     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3393
3394 if enabled small || disabled optimizations; then
3395     echo "#undef  av_always_inline"  >> $TMPH
3396     if enabled small; then
3397         echo "#define av_always_inline inline"  >> $TMPH
3398     else
3399         echo "#define av_always_inline av_unused"  >> $TMPH
3400     fi
3401 fi
3402
3403 if enabled yasm; then
3404     append config_files $TMPASM
3405     printf '' >$TMPASM
3406 fi
3407
3408 print_config ARCH_   "$config_files" $ARCH_LIST
3409 print_config HAVE_   "$config_files" $HAVE_LIST
3410 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3411                                      $CONFIG_EXTRA      \
3412                                      $ALL_COMPONENTS    \
3413
3414 cat >>config.mak <<EOF
3415 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3416 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3417 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3418 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3419 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3420 EOF
3421
3422 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3423
3424 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3425 cp_if_changed $TMPH config.h
3426 touch .config
3427
3428 enabled yasm && cp_if_changed $TMPASM config.asm
3429
3430 cat > $TMPH <<EOF
3431 /* Generated by ffconf */
3432 #ifndef AVUTIL_AVCONFIG_H
3433 #define AVUTIL_AVCONFIG_H
3434 EOF
3435
3436 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3437
3438 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3439
3440 cp_if_changed $TMPH libavutil/avconfig.h
3441
3442 test -n "$WARNINGS" && printf "\n$WARNINGS"
3443
3444 # build pkg-config files
3445
3446 pkgconfig_generate(){
3447 name=$1
3448 shortname=${name#lib}${build_suffix}
3449 comment=$2
3450 version=$3
3451 libs=$4
3452 requires=$5
3453 enabled ${name#lib} || return 0
3454 mkdir -p $name
3455 cat <<EOF > $name/$name.pc
3456 prefix=$prefix
3457 exec_prefix=\${prefix}
3458 libdir=$libdir
3459 includedir=$incdir
3460
3461 Name: $name
3462 Description: $comment
3463 Version: $version
3464 Requires: $(enabled shared || echo $requires)
3465 Requires.private: $(enabled shared && echo $requires)
3466 Conflicts:
3467 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3468 Libs.private: $(enabled shared && echo $libs)
3469 Cflags: -I\${includedir}
3470 EOF
3471 cat <<EOF > $name/$name-uninstalled.pc
3472 prefix=
3473 exec_prefix=
3474 libdir=\${pcfiledir}
3475 includedir=${source_path}
3476
3477 Name: $name
3478 Description: $comment
3479 Version: $version
3480 Requires: $requires
3481 Conflicts:
3482 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3483 Cflags: -I\${includedir}
3484 EOF
3485 }
3486
3487 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3488 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3489 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3490 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3491 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3492 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"