audio encoders: do not set coded_frame->key_frame.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-avconv         disable avconv build
84   --disable-avplay         disable avplay build
85   --disable-avprobe        disable avprobe build
86   --disable-avserver       disable avserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-avfilter       disable video filter support [no]
92   --disable-pthreads       disable pthreads [auto]
93   --disable-w32threads     disable Win32 threads [auto]
94   --enable-x11grab         enable X11 grabbing [no]
95   --disable-network        disable network support [no]
96   --enable-gray            enable full grayscale support (slower color)
97   --disable-swscale-alpha  disable alpha channel support in swscale
98   --disable-fastdiv        disable table-based division
99   --enable-small           optimize for size instead of speed
100   --disable-aandct         disable AAN DCT code
101   --disable-dct            disable DCT code
102   --disable-fft            disable FFT code
103   --disable-golomb         disable Golomb code
104   --disable-huffman        disable Huffman code
105   --disable-lpc            disable LPC code
106   --disable-mdct           disable MDCT code
107   --disable-rdft           disable RDFT code
108   --enable-vaapi           enable VAAPI code
109   --enable-vda             enable VDA code
110   --enable-vdpau           enable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --disable-safe-bitstream-reader
115                            disable buffer boundary checking in bitreaders
116                            (faster, but may crash)
117   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
118   --disable-everything     disable all components listed below
119   --disable-encoder=NAME   disable encoder NAME
120   --enable-encoder=NAME    enable encoder NAME
121   --disable-encoders       disable all encoders
122   --disable-decoder=NAME   disable decoder NAME
123   --enable-decoder=NAME    enable decoder NAME
124   --disable-decoders       disable all decoders
125   --disable-hwaccel=NAME   disable hwaccel NAME
126   --enable-hwaccel=NAME    enable hwaccel NAME
127   --disable-hwaccels       disable all hwaccels
128   --disable-muxer=NAME     disable muxer NAME
129   --enable-muxer=NAME      enable muxer NAME
130   --disable-muxers         disable all muxers
131   --disable-demuxer=NAME   disable demuxer NAME
132   --enable-demuxer=NAME    enable demuxer NAME
133   --disable-demuxers       disable all demuxers
134   --enable-parser=NAME     enable parser NAME
135   --disable-parser=NAME    disable parser NAME
136   --disable-parsers        disable all parsers
137   --enable-bsf=NAME        enable bitstream filter NAME
138   --disable-bsf=NAME       disable bitstream filter NAME
139   --disable-bsfs           disable all bitstream filters
140   --enable-protocol=NAME   enable protocol NAME
141   --disable-protocol=NAME  disable protocol NAME
142   --disable-protocols      disable all protocols
143   --disable-indev=NAME     disable input device NAME
144   --disable-outdev=NAME    disable output device NAME
145   --disable-indevs         disable input devices
146   --disable-outdevs        disable output devices
147   --disable-devices        disable all devices
148   --enable-filter=NAME     enable filter NAME
149   --disable-filter=NAME    disable filter NAME
150   --disable-filters        disable all filters
151   --list-decoders          show all available decoders
152   --list-encoders          show all available encoders
153   --list-hwaccels          show all available hardware accelerators
154   --list-muxers            show all available muxers
155   --list-demuxers          show all available demuxers
156   --list-parsers           show all available parsers
157   --list-protocols         show all available protocols
158   --list-bsfs              show all available bitstream filters
159   --list-indevs            show all available input devices
160   --list-outdevs           show all available output devices
161   --list-filters           show all available 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 [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --build-suffix=SUFFIX    library name suffix []
221   --arch=ARCH              select architecture [$arch]
222   --cpu=CPU                select the minimum required CPU (affects
223                            instruction selection, may crash on older CPUs)
224   --disable-asm            disable all assembler optimizations
225   --disable-altivec        disable AltiVec optimizations
226   --disable-amd3dnow       disable 3DNow! optimizations
227   --disable-amd3dnowext    disable 3DNow! extended optimizations
228   --disable-mmx            disable MMX optimizations
229   --disable-mmx2           disable MMX2 optimizations
230   --disable-sse            disable SSE optimizations
231   --disable-ssse3          disable SSSE3 optimizations
232   --disable-avx            disable AVX optimizations
233   --disable-armv5te        disable armv5te optimizations
234   --disable-armv6          disable armv6 optimizations
235   --disable-armv6t2        disable armv6t2 optimizations
236   --disable-armvfp         disable ARM VFP optimizations
237   --disable-iwmmxt         disable iwmmxt optimizations
238   --disable-mmi            disable MMI optimizations
239   --disable-neon           disable NEON optimizations
240   --disable-vis            disable VIS optimizations
241   --disable-yasm           disable use of yasm assembler
242   --enable-pic             build position-independent code
243   --malloc-prefix=PFX      prefix malloc and related names with PFX
244   --enable-sram            allow use of on-chip SRAM
245   --disable-symver         disable symbol versioning
246   --optflags               override optimization-related compiler flags
247
248 Developer options (useful when working on Libav itself):
249   --disable-debug          disable debugging symbols
250   --enable-debug=LEVEL     set the debug level [$debuglevel]
251   --disable-optimizations  disable compiler optimizations
252   --enable-extra-warnings  enable more compiler warnings
253   --samples=PATH           location of test samples for FATE, if not set use
254                            \$FATE_SAMPLES at make invocation time.
255   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
256                            should be used only for debugging purposes)
257
258 NOTE: Object files are built at the place where configure is launched.
259 EOF
260   exit 0
261 }
262
263 quotes='""'
264
265 log(){
266     echo "$@" >> $logfile
267 }
268
269 log_file(){
270     log BEGIN $1
271     pr -n -t $1 >> $logfile
272     log END $1
273 }
274
275 echolog(){
276     log "$@"
277     echo "$@"
278 }
279
280 warn(){
281     log "WARNING: $*"
282     WARNINGS="${WARNINGS}WARNING: $*\n"
283 }
284
285 die(){
286     echolog "$@"
287     cat <<EOF
288
289 If you think configure made a mistake, make sure you are using the latest
290 version from Git.  If the latest version fails, report the problem to the
291 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
292 EOF
293     if disabled logging; then
294         cat <<EOF
295 Rerun configure with logging enabled (do not use --disable-logging), and
296 include the log this produces with your report.
297 EOF
298     else
299 cat <<EOF
300 Include the log file "$logfile" produced by configure as this will help
301 solving the problem.
302 EOF
303     fi
304     exit 1
305 }
306
307 # Avoid locale weirdness, besides we really just want to translate ASCII.
308 toupper(){
309     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
310 }
311
312 tolower(){
313     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
314 }
315
316 c_escape(){
317     echo "$*" | sed 's/["\\]/\\\0/g'
318 }
319
320 sh_quote(){
321     v=$(echo "$1" | sed "s/'/'\\\\''/g")
322     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
323     echo "$v"
324 }
325
326 cleanws(){
327     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
328 }
329
330 filter(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) echo $v ;; esac"
335     done
336 }
337
338 filter_out(){
339     pat=$1
340     shift
341     for v; do
342         eval "case $v in $pat) ;; *) echo $v ;; esac"
343     done
344 }
345
346 map(){
347     m=$1
348     shift
349     for v; do eval $m; done
350 }
351
352 set_all(){
353     value=$1
354     shift
355     for var in $*; do
356         eval $var=$value
357     done
358 }
359
360 set_weak(){
361     value=$1
362     shift
363     for var; do
364         eval : \${$var:=$value}
365     done
366 }
367
368 set_safe(){
369     var=$1
370     shift
371     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
372 }
373
374 get_safe(){
375     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
376 }
377
378 pushvar(){
379     for var in $*; do
380         eval level=\${${var}_level:=0}
381         eval ${var}_${level}="\$$var"
382         eval ${var}_level=$(($level+1))
383     done
384 }
385
386 popvar(){
387     for var in $*; do
388         eval level=\${${var}_level:-0}
389         test $level = 0 && continue
390         eval level=$(($level-1))
391         eval $var="\${${var}_${level}}"
392         eval ${var}_level=$level
393         eval unset ${var}_${level}
394     done
395 }
396
397 enable(){
398     set_all yes $*
399 }
400
401 disable(){
402     set_all no $*
403 }
404
405 enable_weak(){
406     set_weak yes $*
407 }
408
409 disable_weak(){
410     set_weak no $*
411 }
412
413 enable_safe(){
414     for var; do
415         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
416     done
417 }
418
419 disable_safe(){
420     for var; do
421         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
422     done
423 }
424
425 do_enable_deep(){
426     for var; do
427         enabled $var && continue
428         eval sel="\$${var}_select"
429         eval sgs="\$${var}_suggest"
430         pushvar var sgs
431         enable_deep $sel
432         popvar sgs
433         enable_deep_weak $sgs
434         popvar var
435     done
436 }
437
438 enable_deep(){
439     do_enable_deep $*
440     enable $*
441 }
442
443 enable_deep_weak(){
444     do_enable_deep $*
445     enable_weak $*
446 }
447
448 enabled(){
449     test "${1#!}" = "$1" && op== || op=!=
450     eval test "x\$${1#!}" $op "xyes"
451 }
452
453 disabled(){
454     test "${1#!}" = "$1" && op== || op=!=
455     eval test "x\$${1#!}" $op "xno"
456 }
457
458 enabled_all(){
459     for opt; do
460         enabled $opt || return 1
461     done
462 }
463
464 disabled_all(){
465     for opt; do
466         disabled $opt || return 1
467     done
468 }
469
470 enabled_any(){
471     for opt; do
472         enabled $opt && return 0
473     done
474 }
475
476 disabled_any(){
477     for opt; do
478         disabled $opt && return 0
479     done
480     return 1
481 }
482
483 set_default(){
484     for opt; do
485         eval : \${$opt:=\$${opt}_default}
486     done
487 }
488
489 is_in(){
490     value=$1
491     shift
492     for var in $*; do
493         [ $var = $value ] && return 0
494     done
495     return 1
496 }
497
498 check_deps(){
499     for cfg; do
500         cfg="${cfg#!}"
501         enabled ${cfg}_checking && die "Circular dependency for $cfg."
502         disabled ${cfg}_checking && continue
503         enable ${cfg}_checking
504
505         eval dep_all="\$${cfg}_deps"
506         eval dep_any="\$${cfg}_deps_any"
507         eval dep_sel="\$${cfg}_select"
508         eval dep_sgs="\$${cfg}_suggest"
509         eval dep_ifa="\$${cfg}_if"
510         eval dep_ifn="\$${cfg}_if_any"
511
512         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
513         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
514         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
515
516         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
517         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
518         enabled_all  $dep_all || disable $cfg
519         enabled_any  $dep_any || disable $cfg
520         disabled_any $dep_sel && disable $cfg
521
522         if enabled $cfg; then
523             eval dep_extralibs="\$${cfg}_extralibs"
524             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
525             enable_deep $dep_sel
526             enable_deep_weak $dep_sgs
527         fi
528
529         disable ${cfg}_checking
530     done
531 }
532
533 print_config_h(){
534     enabled $1 && v=1 || v=0
535     echo "#define $2 $v"
536 }
537
538 print_config_mak(){
539     enabled $1 && v= || v=!
540     echo "$v$2=yes"
541 }
542
543 print_config_asm(){
544     enabled $1 && v=1 || v=0
545     echo "%define $2 $v"
546 }
547
548 print_config(){
549     pfx=$1
550     files=$2
551     shift 2
552     for cfg; do
553         ucname="$(toupper $cfg)"
554         for f in $files; do
555             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
556         done
557     done
558 }
559
560 print_enabled(){
561     test "$1" = -n && end=" " && shift || end="\n"
562     suf=$1
563     shift
564     for v; do
565         enabled $v && printf "%s$end" ${v%$suf};
566     done
567 }
568
569 append(){
570     var=$1
571     shift
572     eval "$var=\"\$$var $*\""
573 }
574
575 prepend(){
576     var=$1
577     shift
578     eval "$var=\"$* \$$var\""
579 }
580
581 add_cppflags(){
582     append CPPFLAGS $($filter_cppflags "$@")
583 }
584
585 add_cflags(){
586     append CFLAGS $($filter_cflags "$@")
587 }
588
589 add_asflags(){
590     append ASFLAGS $($filter_asflags "$@")
591 }
592
593 add_ldflags(){
594     append LDFLAGS "$@"
595 }
596
597 add_extralibs(){
598     prepend extralibs "$@"
599 }
600
601 check_cmd(){
602     log "$@"
603     "$@" >> $logfile 2>&1
604 }
605
606 check_cc(){
607     log check_cc "$@"
608     cat > $TMPC
609     log_file $TMPC
610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
611 }
612
613 check_cpp(){
614     log check_cpp "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
618 }
619
620 check_as(){
621     log check_as "$@"
622     cat > $TMPC
623     log_file $TMPC
624     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
625 }
626
627 check_asm(){
628     log check_asm "$@"
629     name="$1"
630     code="$2"
631     shift 2
632     disable $name
633     check_as "$@" <<EOF && enable $name
634 void foo(void){ __asm__ volatile($code); }
635 EOF
636 }
637
638 check_yasm(){
639     log check_yasm "$@"
640     echo "$1" > $TMPS
641     log_file $TMPS
642     shift 1
643     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
644 }
645
646 check_ld(){
647     log check_ld "$@"
648     flags=''
649     libs=''
650     for f; do
651         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
652     done
653     check_cc $($filter_cflags $flags) || return
654     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
655 }
656
657 check_cppflags(){
658     log check_cppflags "$@"
659     set -- $($filter_cppflags "$@")
660     check_cc "$@" <<EOF && append CPPFLAGS "$@"
661 int x;
662 EOF
663 }
664
665 check_cflags(){
666     log check_cflags "$@"
667     set -- $($filter_cflags "$@")
668     check_cc "$@" <<EOF && append CFLAGS "$@"
669 int x;
670 EOF
671 }
672
673 test_ldflags(){
674     log test_ldflags "$@"
675     check_ld "$@" <<EOF
676 int main(void){ return 0; }
677 EOF
678 }
679
680 check_ldflags(){
681     log check_ldflags "$@"
682     test_ldflags "$@" && add_ldflags "$@"
683 }
684
685 check_header(){
686     log check_header "$@"
687     header=$1
688     shift
689     disable_safe $header
690     check_cpp "$@" <<EOF && enable_safe $header
691 #include <$header>
692 int x;
693 EOF
694 }
695
696 check_func(){
697     log check_func "$@"
698     func=$1
699     shift
700     disable $func
701     check_ld "$@" <<EOF && enable $func
702 extern int $func();
703 int main(void){ $func(); }
704 EOF
705 }
706
707 check_mathfunc(){
708     log check_mathfunc "$@"
709     func=$1
710     shift
711     disable $func
712     check_ld "$@" <<EOF && enable $func
713 #include <math.h>
714 float foo(float f) { return $func(f); }
715 int main(void){ return 0; }
716 EOF
717 }
718
719 check_func_headers(){
720     log check_func_headers "$@"
721     headers=$1
722     funcs=$2
723     shift 2
724     {
725         for hdr in $headers; do
726             echo "#include <$hdr>"
727         done
728         for func in $funcs; do
729             echo "long check_$func(void) { return (long) $func; }"
730         done
731         echo "int main(void) { return 0; }"
732     } | check_ld "$@" && enable $funcs && enable_safe $headers
733 }
734
735 check_cpp_condition(){
736     log check_cpp_condition "$@"
737     header=$1
738     condition=$2
739     shift 2
740     check_cpp $($filter_cppflags "$@") <<EOF
741 #include <$header>
742 #if !($condition)
743 #error "unsatisfied condition: $condition"
744 #endif
745 EOF
746 }
747
748 check_lib(){
749     log check_lib "$@"
750     header="$1"
751     func="$2"
752     shift 2
753     check_header $header && check_func $func "$@" && add_extralibs "$@"
754 }
755
756 check_lib2(){
757     log check_lib2 "$@"
758     headers="$1"
759     funcs="$2"
760     shift 2
761     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
762 }
763
764 check_pkg_config(){
765     log check_pkg_config "$@"
766     pkg="$1"
767     headers="$2"
768     funcs="$3"
769     shift 3
770     $pkg_config --exists $pkg || return
771     pkg_cflags=$($pkg_config --cflags $pkg)
772     pkg_libs=$($pkg_config --libs $pkg)
773     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
774         set_safe ${pkg}_cflags $pkg_cflags   &&
775         set_safe ${pkg}_libs   $pkg_libs
776 }
777
778 check_exec(){
779     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
780 }
781
782 check_exec_crash(){
783     code=$(cat)
784
785     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
786     # are safe but may not be available everywhere.  Thus we use
787     # raise(SIGTERM) instead.  The check is run in a subshell so we
788     # can redirect the "Terminated" message from the shell.  SIGBUS
789     # is not defined by standard C so it is used conditionally.
790
791     (check_exec "$@") >> $logfile 2>&1 <<EOF
792 #include <signal.h>
793 static void sighandler(int sig){
794     raise(SIGTERM);
795 }
796 int main(void){
797     signal(SIGILL, sighandler);
798     signal(SIGFPE, sighandler);
799     signal(SIGSEGV, sighandler);
800 #ifdef SIGBUS
801     signal(SIGBUS, sighandler);
802 #endif
803     { $code }
804 }
805 EOF
806 }
807
808 check_type(){
809     log check_type "$@"
810     headers=$1
811     type=$2
812     shift 2
813     disable_safe "$type"
814     incs=""
815     for hdr in $headers; do
816         incs="$incs
817 #include <$hdr>"
818     done
819     check_cc "$@" <<EOF && enable_safe "$type"
820 $incs
821 $type v;
822 EOF
823 }
824
825 check_struct(){
826     log check_type "$@"
827     headers=$1
828     struct=$2
829     member=$3
830     shift 3
831     disable_safe "${struct}_${member}"
832     incs=""
833     for hdr in $headers; do
834         incs="$incs
835 #include <$hdr>"
836     done
837     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
838 $incs
839 const void *p = &(($struct *)0)->$member;
840 EOF
841 }
842
843 require(){
844     name="$1"
845     header="$2"
846     func="$3"
847     shift 3
848     check_lib $header $func "$@" || die "ERROR: $name not found"
849 }
850
851 require2(){
852     name="$1"
853     headers="$2"
854     func="$3"
855     shift 3
856     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
857 }
858
859 require_pkg_config(){
860     pkg="$1"
861     check_pkg_config "$@" || die "ERROR: $pkg not found"
862     add_cflags    $(get_safe ${pkg}_cflags)
863     add_extralibs $(get_safe ${pkg}_libs)
864 }
865
866 check_host_cc(){
867     log check_host_cc "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
871 }
872
873 check_host_cflags(){
874     log check_host_cflags "$@"
875     check_host_cc "$@" <<EOF && append host_cflags "$@"
876 int x;
877 EOF
878 }
879
880 apply(){
881     file=$1
882     shift
883     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
884 }
885
886 cp_if_changed(){
887     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
888     mkdir -p "$(dirname $2)"
889     cp -f "$1" "$2"
890 }
891
892 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
893 # system-dependent things.
894
895 COMPONENT_LIST="
896     bsfs
897     decoders
898     demuxers
899     encoders
900     filters
901     hwaccels
902     indevs
903     muxers
904     outdevs
905     parsers
906     protocols
907 "
908
909 PROGRAM_LIST="
910     avconv
911     avplay
912     avprobe
913     avserver
914 "
915
916 CONFIG_LIST="
917     $COMPONENT_LIST
918     $PROGRAM_LIST
919     aandct
920     ac3dsp
921     avcodec
922     avdevice
923     avfilter
924     avformat
925     avisynth
926     bzlib
927     dct
928     doc
929     dwt
930     dxva2
931     fastdiv
932     fft
933     frei0r
934     gnutls
935     golomb
936     gpl
937     gray
938     h264chroma
939     h264dsp
940     h264pred
941     hardcoded_tables
942     huffman
943     libcdio
944     libdc1394
945     libdirac
946     libfaac
947     libfreetype
948     libgsm
949     libmp3lame
950     libnut
951     libopencore_amrnb
952     libopencore_amrwb
953     libopencv
954     libopenjpeg
955     libpulse
956     librtmp
957     libschroedinger
958     libspeex
959     libtheora
960     libvo_aacenc
961     libvo_amrwbenc
962     libvorbis
963     libvpx
964     libx264
965     libxavs
966     libxvid
967     lpc
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     iwmmxt
1036     mmi
1037     mmx
1038     mmx2
1039     neon
1040     ppc4xx
1041     sse
1042     ssse3
1043     vfpv3
1044     vis
1045 '
1046
1047 HAVE_LIST_PUB='
1048     bigendian
1049     fast_unaligned
1050 '
1051
1052 HAVE_LIST="
1053     $ARCH_EXT_LIST
1054     $HAVE_LIST_PUB
1055     $THREADS_LIST
1056     aligned_stack
1057     alsa_asoundlib_h
1058     altivec_h
1059     arpa_inet_h
1060     asm_mod_y
1061     attribute_may_alias
1062     attribute_packed
1063     closesocket
1064     cmov
1065     dcbzl
1066     dev_bktr_ioctl_bt848_h
1067     dev_bktr_ioctl_meteor_h
1068     dev_ic_bt8xx_h
1069     dev_video_bktr_ioctl_bt848_h
1070     dev_video_meteor_ioctl_meteor_h
1071     dlfcn_h
1072     dlopen
1073     dos_paths
1074     ebp_available
1075     ebx_available
1076     exp2
1077     exp2f
1078     fast_64bit
1079     fast_clz
1080     fast_cmov
1081     fcntl
1082     fork
1083     getaddrinfo
1084     gethrtime
1085     GetProcessAffinityMask
1086     GetProcessMemoryInfo
1087     GetProcessTimes
1088     getrusage
1089     gnu_as
1090     ibm_asm
1091     inet_aton
1092     inline_asm
1093     isatty
1094     ldbrx
1095     libdc1394_1
1096     libdc1394_2
1097     llrint
1098     llrintf
1099     local_aligned_16
1100     local_aligned_8
1101     localtime_r
1102     log2
1103     log2f
1104     loongson
1105     lrint
1106     lrintf
1107     lzo1x_999_compress
1108     machine_ioctl_bt848_h
1109     machine_ioctl_meteor_h
1110     malloc_h
1111     MapViewOfFile
1112     memalign
1113     mkstemp
1114     mmap
1115     poll_h
1116     posix_memalign
1117     round
1118     roundf
1119     sched_getaffinity
1120     sdl
1121     sdl_video_size
1122     setmode
1123     setrlimit
1124     sndio_h
1125     socklen_t
1126     soundcard_h
1127     strerror_r
1128     strptime
1129     strtok_r
1130     struct_addrinfo
1131     struct_ipv6_mreq
1132     struct_rusage_ru_maxrss
1133     struct_sockaddr_in6
1134     struct_sockaddr_sa_len
1135     struct_sockaddr_storage
1136     struct_v4l2_frmivalenum_discrete
1137     symver
1138     symver_asm_label
1139     symver_gnu_asm
1140     sysconf
1141     sysctl
1142     sys_mman_h
1143     sys_param_h
1144     sys_resource_h
1145     sys_select_h
1146     sys_soundcard_h
1147     sys_videoio_h
1148     threads
1149     trunc
1150     truncf
1151     vfp_args
1152     VirtualAlloc
1153     winsock2_h
1154     xform_asm
1155     xmm_clobbers
1156     yasm
1157 "
1158
1159 # options emitted with CONFIG_ prefix but not available on command line
1160 CONFIG_EXTRA="
1161     avutil
1162     gplv3
1163     lgplv3
1164 "
1165
1166 CMDLINE_SELECT="
1167     $ARCH_EXT_LIST
1168     $CONFIG_LIST
1169     $THREADS_LIST
1170     asm
1171     cross_compile
1172     debug
1173     extra_warnings
1174     logging
1175     optimizations
1176     symver
1177     yasm
1178 "
1179
1180 PATHS_LIST='
1181     bindir
1182     datadir
1183     incdir
1184     libdir
1185     mandir
1186     prefix
1187     shlibdir
1188 '
1189
1190 CMDLINE_SET="
1191     $PATHS_LIST
1192     ar
1193     arch
1194     as
1195     build_suffix
1196     cc
1197     cpu
1198     cross_prefix
1199     dep_cc
1200     extra_version
1201     host_cc
1202     host_cflags
1203     host_ldflags
1204     host_libs
1205     host_os
1206     ld
1207     logfile
1208     malloc_prefix
1209     nm
1210     optflags
1211     pkg_config
1212     samples
1213     sysinclude
1214     sysroot
1215     target_exec
1216     target_os
1217     target_path
1218 "
1219
1220 CMDLINE_APPEND="
1221     extra_cflags
1222 "
1223
1224 # code dependency declarations
1225
1226 # architecture extensions
1227
1228 armv5te_deps="arm"
1229 armv6_deps="arm"
1230 armv6t2_deps="arm"
1231 armvfp_deps="arm"
1232 iwmmxt_deps="arm"
1233 neon_deps="arm"
1234 vfpv3_deps="armvfp"
1235
1236 mmi_deps="mips"
1237
1238 altivec_deps="ppc"
1239 ppc4xx_deps="ppc"
1240
1241 vis_deps="sparc"
1242
1243 x86_64_suggest="cmov fast_cmov"
1244 amd3dnow_deps="mmx"
1245 amd3dnowext_deps="amd3dnow"
1246 mmx_deps="x86"
1247 mmx2_deps="mmx"
1248 sse_deps="mmx"
1249 ssse3_deps="sse"
1250 avx_deps="ssse3"
1251
1252 aligned_stack_if_any="ppc x86"
1253 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1254 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1255 fast_unaligned_if_any="armv6 ppc x86"
1256
1257 inline_asm_deps="!tms470"
1258 need_memalign="altivec neon sse"
1259
1260 symver_if_any="symver_asm_label symver_gnu_asm"
1261
1262 # subsystems
1263 dct_select="rdft"
1264 mdct_select="fft"
1265 rdft_select="fft"
1266 mpegaudiodsp_select="dct"
1267
1268 # decoders / encoders / hardware accelerators
1269 aac_decoder_select="mdct sinewin"
1270 aac_encoder_select="mdct sinewin"
1271 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1272 ac3_decoder_select="mdct ac3dsp ac3_parser"
1273 ac3_encoder_select="mdct ac3dsp"
1274 ac3_fixed_encoder_select="mdct ac3dsp"
1275 alac_encoder_select="lpc"
1276 amrnb_decoder_select="lsp"
1277 amrwb_decoder_select="lsp"
1278 atrac1_decoder_select="mdct sinewin"
1279 atrac3_decoder_select="mdct"
1280 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1281 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1282 cavs_decoder_select="golomb"
1283 cook_decoder_select="mdct sinewin"
1284 cscd_decoder_suggest="zlib"
1285 dca_decoder_select="mdct"
1286 dnxhd_encoder_select="aandct"
1287 dxa_decoder_select="zlib"
1288 eac3_decoder_select="ac3_decoder"
1289 eac3_encoder_select="mdct ac3dsp"
1290 eamad_decoder_select="aandct"
1291 eatgq_decoder_select="aandct"
1292 eatqi_decoder_select="aandct"
1293 ffv1_decoder_select="golomb"
1294 flac_decoder_select="golomb"
1295 flac_encoder_select="golomb lpc"
1296 flashsv_decoder_select="zlib"
1297 flashsv_encoder_select="zlib"
1298 flashsv2_decoder_select="zlib"
1299 flv_decoder_select="h263_decoder"
1300 flv_encoder_select="h263_encoder"
1301 fraps_decoder_select="huffman"
1302 h261_encoder_select="aandct"
1303 h263_decoder_select="h263_parser"
1304 h263_encoder_select="aandct"
1305 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1306 h263i_decoder_select="h263_decoder"
1307 h263p_encoder_select="h263_encoder"
1308 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1309 h264_dxva2_hwaccel_deps="dxva2api_h"
1310 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1311 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1312 h264_vda_hwaccel_select="vda h264_decoder"
1313 h264_vdpau_decoder_select="vdpau h264_decoder"
1314 imc_decoder_select="fft mdct sinewin"
1315 jpegls_decoder_select="golomb"
1316 jpegls_encoder_select="golomb"
1317 ljpeg_encoder_select="aandct"
1318 loco_decoder_select="golomb"
1319 mjpeg_encoder_select="aandct"
1320 mlp_decoder_select="mlp_parser"
1321 mp1_decoder_select="mpegaudiodsp"
1322 mp1float_decoder_select="mpegaudiodsp"
1323 mp2_decoder_select="mpegaudiodsp"
1324 mp2float_decoder_select="mpegaudiodsp"
1325 mp3_decoder_select="mpegaudiodsp"
1326 mp3adu_decoder_select="mpegaudiodsp"
1327 mp3adufloat_decoder_select="mpegaudiodsp"
1328 mp3float_decoder_select="mpegaudiodsp"
1329 mp3on4_decoder_select="mpegaudiodsp"
1330 mp3on4float_decoder_select="mpegaudiodsp"
1331 mpc7_decoder_select="mpegaudiodsp"
1332 mpc8_decoder_select="mpegaudiodsp"
1333 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1334 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1335 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1336 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1337 mpeg1video_encoder_select="aandct"
1338 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1339 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1340 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1341 mpeg2video_encoder_select="aandct"
1342 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1343 mpeg4_encoder_select="h263_encoder"
1344 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1345 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1346 msmpeg4v1_decoder_select="h263_decoder"
1347 msmpeg4v1_encoder_select="h263_encoder"
1348 msmpeg4v2_decoder_select="h263_decoder"
1349 msmpeg4v2_encoder_select="h263_encoder"
1350 msmpeg4v3_decoder_select="h263_decoder"
1351 msmpeg4v3_encoder_select="h263_encoder"
1352 nellymoser_decoder_select="mdct sinewin"
1353 nellymoser_encoder_select="mdct sinewin"
1354 png_decoder_select="zlib"
1355 png_encoder_select="zlib"
1356 qcelp_decoder_select="lsp"
1357 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1358 ra_144_encoder_select="lpc"
1359 rv10_decoder_select="h263_decoder"
1360 rv10_encoder_select="h263_encoder"
1361 rv20_decoder_select="h263_decoder"
1362 rv20_encoder_select="h263_encoder"
1363 rv30_decoder_select="golomb h264chroma h264pred"
1364 rv40_decoder_select="golomb h264chroma h264pred"
1365 shorten_decoder_select="golomb"
1366 sipr_decoder_select="lsp"
1367 snow_decoder_select="dwt"
1368 snow_encoder_select="aandct dwt"
1369 svq1_encoder_select="aandct"
1370 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1371 svq3_decoder_suggest="zlib"
1372 theora_decoder_select="vp3_decoder"
1373 tiff_decoder_suggest="zlib"
1374 tiff_encoder_suggest="zlib"
1375 truehd_decoder_select="mlp_decoder"
1376 tscc_decoder_select="zlib"
1377 twinvq_decoder_select="mdct lsp sinewin"
1378 vc1_decoder_select="h263_decoder h264chroma"
1379 vc1_dxva2_hwaccel_deps="dxva2api_h"
1380 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1381 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1382 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1383 vc1image_decoder_select="vc1_decoder"
1384 vorbis_decoder_select="mdct"
1385 vorbis_encoder_select="mdct"
1386 vp6_decoder_select="huffman"
1387 vp6a_decoder_select="vp6_decoder"
1388 vp6f_decoder_select="vp6_decoder"
1389 vp8_decoder_select="h264pred"
1390 wmapro_decoder_select="mdct sinewin"
1391 wmav1_decoder_select="mdct sinewin"
1392 wmav1_encoder_select="mdct sinewin"
1393 wmav2_decoder_select="mdct sinewin"
1394 wmav2_encoder_select="mdct sinewin"
1395 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1396 wmv1_decoder_select="h263_decoder"
1397 wmv1_encoder_select="h263_encoder"
1398 wmv2_decoder_select="h263_decoder"
1399 wmv2_encoder_select="h263_encoder"
1400 wmv3_decoder_select="vc1_decoder"
1401 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1402 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1403 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1404 wmv3image_decoder_select="wmv3_decoder"
1405 zlib_decoder_select="zlib"
1406 zlib_encoder_select="zlib"
1407 zmbv_decoder_select="zlib"
1408 zmbv_encoder_select="zlib"
1409
1410 vaapi_deps="va_va_h"
1411 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1412 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1413
1414 # parsers
1415 h264_parser_select="golomb h264chroma h264dsp h264pred"
1416
1417 # external libraries
1418 libdirac_decoder_deps="libdirac !libschroedinger"
1419 libfaac_encoder_deps="libfaac"
1420 libgsm_decoder_deps="libgsm"
1421 libgsm_encoder_deps="libgsm"
1422 libgsm_ms_decoder_deps="libgsm"
1423 libgsm_ms_encoder_deps="libgsm"
1424 libmp3lame_encoder_deps="libmp3lame"
1425 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1426 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1427 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1428 libopenjpeg_decoder_deps="libopenjpeg"
1429 libschroedinger_decoder_deps="libschroedinger"
1430 libschroedinger_encoder_deps="libschroedinger"
1431 libspeex_decoder_deps="libspeex"
1432 libspeex_encoder_deps="libspeex"
1433 libtheora_encoder_deps="libtheora"
1434 libvo_aacenc_encoder_deps="libvo_aacenc"
1435 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1436 libvorbis_encoder_deps="libvorbis"
1437 libvpx_decoder_deps="libvpx"
1438 libvpx_encoder_deps="libvpx"
1439 libx264_encoder_deps="libx264"
1440 libxavs_encoder_deps="libxavs"
1441 libxvid_encoder_deps="libxvid"
1442
1443 # demuxers / muxers
1444 ac3_demuxer_select="ac3_parser"
1445 asf_stream_muxer_select="asf_muxer"
1446 avisynth_demuxer_deps="avisynth"
1447 dirac_demuxer_select="dirac_parser"
1448 eac3_demuxer_select="ac3_parser"
1449 flac_demuxer_select="flac_parser"
1450 ipod_muxer_select="mov_muxer"
1451 libnut_demuxer_deps="libnut"
1452 libnut_muxer_deps="libnut"
1453 matroska_audio_muxer_select="matroska_muxer"
1454 matroska_demuxer_suggest="zlib bzlib"
1455 mov_demuxer_suggest="zlib"
1456 mp3_demuxer_select="mpegaudio_parser"
1457 mp4_muxer_select="mov_muxer"
1458 mpegtsraw_demuxer_select="mpegts_demuxer"
1459 mxf_d10_muxer_select="mxf_muxer"
1460 ogg_demuxer_select="golomb"
1461 psp_muxer_select="mov_muxer"
1462 rtp_demuxer_select="sdp_demuxer"
1463 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1464 rtsp_demuxer_select="http_protocol rtpdec"
1465 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1466 sap_demuxer_select="sdp_demuxer"
1467 sap_muxer_select="rtp_muxer rtp_protocol"
1468 sdp_demuxer_select="rtpdec"
1469 spdif_muxer_select="aac_parser"
1470 tg2_muxer_select="mov_muxer"
1471 tgp_muxer_select="mov_muxer"
1472 w64_demuxer_deps="wav_demuxer"
1473
1474 # indevs / outdevs
1475 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1476 alsa_outdev_deps="alsa_asoundlib_h"
1477 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1478 dv1394_indev_deps="dv1394 dv_demuxer"
1479 fbdev_indev_deps="linux_fb_h"
1480 jack_indev_deps="jack_jack_h"
1481 libcdio_indev_deps="libcdio"
1482 libdc1394_indev_deps="libdc1394"
1483 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1484 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1485 pulse_indev_deps="libpulse"
1486 sndio_indev_deps="sndio_h"
1487 sndio_outdev_deps="sndio_h"
1488 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1489 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1490 vfwcap_indev_extralibs="-lavicap32"
1491 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1492 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1493
1494 # protocols
1495 gopher_protocol_deps="network"
1496 httpproxy_protocol_deps="network"
1497 httpproxy_protocol_select="tcp_protocol"
1498 http_protocol_deps="network"
1499 http_protocol_select="tcp_protocol"
1500 https_protocol_select="tls_protocol"
1501 librtmp_protocol_deps="librtmp"
1502 librtmpe_protocol_deps="librtmp"
1503 librtmps_protocol_deps="librtmp"
1504 librtmpt_protocol_deps="librtmp"
1505 librtmpte_protocol_deps="librtmp"
1506 mmsh_protocol_select="http_protocol"
1507 mmst_protocol_deps="network"
1508 rtmp_protocol_deps="!librtmp_protocol"
1509 rtmp_protocol_select="tcp_protocol"
1510 rtp_protocol_select="udp_protocol"
1511 tcp_protocol_deps="network"
1512 tls_protocol_deps_any="openssl gnutls"
1513 tls_protocol_select="tcp_protocol"
1514 udp_protocol_deps="network"
1515
1516 # filters
1517 blackframe_filter_deps="gpl"
1518 boxblur_filter_deps="gpl"
1519 cropdetect_filter_deps="gpl"
1520 delogo_filter_deps="gpl"
1521 drawtext_filter_deps="libfreetype"
1522 frei0r_filter_deps="frei0r dlopen strtok_r"
1523 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1524 hqdn3d_filter_deps="gpl"
1525 ocv_filter_deps="libopencv"
1526 scale_filter_deps="swscale"
1527 yadif_filter_deps="gpl"
1528
1529 # libraries
1530 avdevice_deps="avcodec avformat"
1531 avformat_deps="avcodec"
1532
1533 # programs
1534 avconv_deps="avcodec avformat swscale"
1535 avplay_deps="avcodec avformat swscale sdl"
1536 avplay_select="rdft"
1537 avprobe_deps="avcodec avformat"
1538 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1539 avserver_extralibs='$ldl'
1540
1541 doc_deps="texi2html"
1542
1543 # tests
1544
1545 test_deps(){
1546     suf1=$1
1547     suf2=$2
1548     shift 2
1549     for v; do
1550         dep=${v%=*}
1551         tests=${v#*=}
1552         for name in ${tests}; do
1553             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1554         done
1555     done
1556 }
1557
1558 mxf_d10_test_deps="avfilter"
1559 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1560
1561 test_deps _encoder _decoder                                             \
1562     adpcm_ima_qt                                                        \
1563     adpcm_ima_wav                                                       \
1564     adpcm_ms                                                            \
1565     adpcm_swf                                                           \
1566     adpcm_yamaha=adpcm_yam                                              \
1567     alac                                                                \
1568     asv1                                                                \
1569     asv2                                                                \
1570     bmp                                                                 \
1571     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1572     dvvideo="dv dv_411 dv50"                                            \
1573     ffv1                                                                \
1574     flac                                                                \
1575     flashsv                                                             \
1576     flv                                                                 \
1577     adpcm_g726=g726                                                     \
1578     gif                                                                 \
1579     h261                                                                \
1580     h263="h263 h263p"                                                   \
1581     huffyuv                                                             \
1582     jpegls                                                              \
1583     mjpeg="jpg mjpeg ljpeg"                                             \
1584     mp2                                                                 \
1585     mpeg1video="mpeg mpeg1b"                                            \
1586     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1587     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1588     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1589     mpeg4="mpeg4thread error rc"                                        \
1590     msmpeg4v3=msmpeg4                                                   \
1591     msmpeg4v2                                                           \
1592     pbm=pbmpipe                                                         \
1593     pcx                                                                 \
1594     pgm="pgm pgmpipe"                                                   \
1595     png                                                                 \
1596     ppm="ppm ppmpipe"                                                   \
1597     rawvideo="rgb yuv"                                                  \
1598     roq                                                                 \
1599     rv10                                                                \
1600     rv20                                                                \
1601     sgi                                                                 \
1602     snow="snow snowll"                                                  \
1603     svq1                                                                \
1604     targa=tga                                                           \
1605     tiff                                                                \
1606     wmav1                                                               \
1607     wmav2                                                               \
1608     wmv1                                                                \
1609     wmv2                                                                \
1610
1611 test_deps _muxer _demuxer                                               \
1612     aiff                                                                \
1613     pcm_alaw=alaw                                                       \
1614     asf                                                                 \
1615     au                                                                  \
1616     avi                                                                 \
1617     dv=dv_fmt                                                           \
1618     ffm                                                                 \
1619     flv=flv_fmt                                                         \
1620     gxf                                                                 \
1621     matroska=mkv                                                        \
1622     mmf                                                                 \
1623     mov                                                                 \
1624     pcm_mulaw=mulaw                                                     \
1625     mxf="mxf mxf_d10"                                                   \
1626     nut                                                                 \
1627     ogg                                                                 \
1628     rawvideo=pixfmt                                                     \
1629     rm                                                                  \
1630     swf                                                                 \
1631     mpegts=ts                                                           \
1632     voc                                                                 \
1633     wav                                                                 \
1634     yuv4mpegpipe=yuv4mpeg                                               \
1635
1636 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1637 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1638
1639 # default parameters
1640
1641 logfile="config.log"
1642
1643 # installation paths
1644 prefix_default="/usr/local"
1645 bindir_default='${prefix}/bin'
1646 datadir_default='${prefix}/share/avconv'
1647 incdir_default='${prefix}/include'
1648 libdir_default='${prefix}/lib'
1649 mandir_default='${prefix}/share/man'
1650 shlibdir_default="$libdir_default"
1651
1652 # toolchain
1653 ar_default="ar"
1654 cc_default="gcc"
1655 cc_version=\"unknown\"
1656 host_cc_default="gcc"
1657 ln_s="ln -sf"
1658 nm_default="nm"
1659 objformat="elf"
1660 pkg_config_default=pkg-config
1661 ranlib="ranlib"
1662 yasmexe="yasm"
1663
1664 nm_opts='-g'
1665 nogas=":"
1666
1667 # machine
1668 arch_default=$(uname -m)
1669 cpu="generic"
1670
1671 # OS
1672 target_os_default=$(tolower $(uname -s))
1673 host_os=$target_os_default
1674
1675 # configurable options
1676 enable $PROGRAM_LIST
1677
1678 enable avcodec
1679 enable avdevice
1680 enable avfilter
1681 enable avformat
1682 enable avutil
1683 enable swscale
1684
1685 enable asm
1686 enable debug
1687 enable doc
1688 enable fastdiv
1689 enable network
1690 enable optimizations
1691 enable safe_bitstream_reader
1692 enable static
1693 enable swscale_alpha
1694
1695 # build settings
1696 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1697 AVSERVERLDFLAGS=-Wl,-E
1698 LIBPREF="lib"
1699 LIBSUF=".a"
1700 FULLNAME='$(NAME)$(BUILDSUF)'
1701 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1702 SLIBPREF="lib"
1703 SLIBSUF=".so"
1704 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1705 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1706 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1707 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1708 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1709 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1710
1711 AS_O='-o $@'
1712 CC_O='-o $@'
1713
1714 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1715 host_libs='-lm'
1716
1717 target_path='$(CURDIR)'
1718
1719 # since the object filename is not given with the -MM flag, the compiler
1720 # is only able to print the basename, and we must add the path ourselves
1721 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1722 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1723
1724 # find source path
1725 if test -f configure; then
1726     source_path=.
1727 else
1728     source_path=$(cd $(dirname "$0"); pwd)
1729     echo "$source_path" | grep -q '[[:blank:]]' &&
1730         die "Out of tree builds are impossible with whitespace in source path."
1731     test -e "$source_path/config.h" &&
1732         die "Out of tree builds are impossible with config.h in source dir."
1733 fi
1734
1735 for v in "$@"; do
1736     r=${v#*=}
1737     l=${v%"$r"}
1738     r=$(sh_quote "$r")
1739     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1740 done
1741
1742 find_things(){
1743     thing=$1
1744     pattern=$2
1745     file=$source_path/$3
1746     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1747 }
1748
1749 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1750 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1751 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1752 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1753 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1754 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1755 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1756 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1757 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1758 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1759 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1760
1761 ALL_COMPONENTS="
1762     $BSF_LIST
1763     $DECODER_LIST
1764     $DEMUXER_LIST
1765     $ENCODER_LIST
1766     $FILTER_LIST
1767     $HWACCEL_LIST
1768     $INDEV_LIST
1769     $MUXER_LIST
1770     $OUTDEV_LIST
1771     $PARSER_LIST
1772     $PROTOCOL_LIST
1773 "
1774
1775 find_tests(){
1776     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1777 }
1778
1779 ACODEC_TESTS=$(find_tests acodec)
1780 VCODEC_TESTS=$(find_tests vsynth1)
1781 LAVF_TESTS=$(find_tests lavf)
1782 LAVFI_TESTS=$(find_tests lavfi)
1783 SEEK_TESTS=$(find_tests seek seek_)
1784
1785 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1786
1787 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1788
1789 for n in $COMPONENT_LIST; do
1790     v=$(toupper ${n%s})_LIST
1791     eval enable \$$v
1792     eval ${n}_if_any="\$$v"
1793 done
1794
1795 enable $ARCH_EXT_LIST $ALL_TESTS
1796
1797 die_unknown(){
1798     echo "Unknown option \"$1\"."
1799     echo "See $0 --help for available options."
1800     exit 1
1801 }
1802
1803 show_list() {
1804     suffix=_$1
1805     shift
1806     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1807     exit 0
1808 }
1809
1810 for opt do
1811     optval="${opt#*=}"
1812     case "$opt" in
1813     --extra-ldflags=*) add_ldflags $optval
1814     ;;
1815     --extra-libs=*) add_extralibs $optval
1816     ;;
1817     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1818     ;;
1819     --enable-debug=*) debuglevel="$optval"
1820     ;;
1821     --disable-everything)
1822     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1823     ;;
1824     --enable-*=*|--disable-*=*)
1825     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1826     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1827     eval list=\$$(toupper $thing)_LIST
1828     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1829     $action $(filter "$name" $list)
1830     ;;
1831     --enable-?*|--disable-?*)
1832     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1833     if is_in $option $COMPONENT_LIST; then
1834         test $action = disable && action=unset
1835         eval $action \$$(toupper ${option%s})_LIST
1836     elif is_in $option $CMDLINE_SELECT; then
1837         $action $option
1838     else
1839         die_unknown $opt
1840     fi
1841     ;;
1842     --list-*)
1843         NAME="${opt#--list-}"
1844         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1845         NAME=${NAME%s}
1846         eval show_list $NAME \$$(toupper $NAME)_LIST
1847     ;;
1848     --help|-h) show_help
1849     ;;
1850     *)
1851     optname="${opt%%=*}"
1852     optname="${optname#--}"
1853     optname=$(echo "$optname" | sed 's/-/_/g')
1854     if is_in $optname $CMDLINE_SET; then
1855         eval $optname='$optval'
1856     elif is_in $optname $CMDLINE_APPEND; then
1857         append $optname "$optval"
1858     else
1859          die_unknown $opt
1860     fi
1861     ;;
1862     esac
1863 done
1864
1865 disabled logging && logfile=/dev/null
1866
1867 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1868 set >> $logfile
1869
1870 test -n "$cross_prefix" && enable cross_compile
1871
1872 if enabled cross_compile; then
1873     test -n "$arch" && test -n "$target_os" ||
1874         die "Must specify target arch and OS when cross-compiling"
1875 fi
1876
1877 set_default arch target_os
1878
1879 ar_default="${cross_prefix}${ar_default}"
1880 cc_default="${cross_prefix}${cc_default}"
1881 nm_default="${cross_prefix}${nm_default}"
1882 pkg_config_default="${cross_prefix}${pkg_config_default}"
1883 ranlib="${cross_prefix}${ranlib}"
1884
1885 sysinclude_default="${sysroot}/usr/include"
1886
1887 set_default cc nm pkg_config sysinclude
1888 enabled cross_compile || host_cc_default=$cc
1889 set_default host_cc
1890
1891 if ! $pkg_config --version >/dev/null 2>&1; then
1892     warn "$pkg_config not found, library detection may fail."
1893     pkg_config=false
1894 fi
1895
1896 exesuf() {
1897     case $1 in
1898         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1899     esac
1900 }
1901
1902 EXESUF=$(exesuf $target_os)
1903 HOSTEXESUF=$(exesuf $host_os)
1904
1905 # set temporary file name
1906 : ${TMPDIR:=$TEMPDIR}
1907 : ${TMPDIR:=$TMP}
1908 : ${TMPDIR:=/tmp}
1909
1910 if ! check_cmd mktemp -u XXXXXX; then
1911     # simple replacement for missing mktemp
1912     # NOT SAFE FOR GENERAL USE
1913     mktemp(){
1914         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1915     }
1916 fi
1917
1918 tmpfile(){
1919     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1920         (set -C; exec > $tmp) 2>/dev/null ||
1921         die "Unable to create temporary file in $TMPDIR."
1922     append TMPFILES $tmp
1923     eval $1=$tmp
1924 }
1925
1926 trap 'rm -f -- $TMPFILES' EXIT
1927
1928 tmpfile TMPASM .asm
1929 tmpfile TMPC   .c
1930 tmpfile TMPE   $EXESUF
1931 tmpfile TMPH   .h
1932 tmpfile TMPO   .o
1933 tmpfile TMPS   .S
1934 tmpfile TMPSH  .sh
1935 tmpfile TMPV   .ver
1936
1937 unset -f mktemp
1938
1939 chmod +x $TMPE
1940
1941 # make sure we can execute files in $TMPDIR
1942 cat > $TMPSH 2>> $logfile <<EOF
1943 #! /bin/sh
1944 EOF
1945 chmod +x $TMPSH >> $logfile 2>&1
1946 if ! $TMPSH >> $logfile 2>&1; then
1947     cat <<EOF
1948 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1949 variable to another directory and make sure that it is not mounted noexec.
1950 EOF
1951     die "Sanity test failed."
1952 fi
1953
1954 filter_asflags=echo
1955 filter_cflags=echo
1956 filter_cppflags=echo
1957
1958 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1959     cc_type=llvm_gcc
1960     cc_version=__VERSION__
1961     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1962     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1963     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967 elif $cc -v 2>&1 | grep -qi ^gcc; then
1968     cc_type=gcc
1969     cc_version=__VERSION__
1970     gcc_version=$($cc --version | head -n1)
1971     gcc_basever=$($cc -dumpversion)
1972     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1973     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1974     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1975     if ! $cc -dumpversion | grep -q '^2\.'; then
1976         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1977         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1978     fi
1979     speed_cflags='-O3'
1980     size_cflags='-Os'
1981 elif $cc --version 2>/dev/null | grep -q Intel; then
1982     cc_type=icc
1983     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1984     cc_ident=$($cc --version | head -n1)
1985     icc_version=$($cc -dumpversion)
1986     CC_DEPFLAGS='-MMD'
1987     AS_DEPFLAGS='-MMD'
1988     speed_cflags='-O3'
1989     size_cflags='-Os'
1990     noopt_cflags='-O1'
1991 elif $cc -v 2>&1 | grep -q xlc; then
1992     cc_type=xlc
1993     cc_version="AV_STRINGIFY(__IBMC__)"
1994     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1995     speed_cflags='-O5'
1996     size_cflags='-O5 -qcompact'
1997 elif $cc -V 2>/dev/null | grep -q Compaq; then
1998     cc_type=ccc
1999     cc_version="AV_STRINGIFY(__DECC_VER)"
2000     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2001     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2002     debuglevel=3
2003     add_ldflags -Wl,-z,now # calls to libots crash without this
2004     speed_cflags='-fast'
2005     size_cflags='-O1'
2006 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2007     test -d "$sysroot" || die "No valid sysroot specified."
2008     cc_type=armcc
2009     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2010     cc_ident=$($cc --vsn | head -n1)
2011     armcc_conf="$PWD/armcc.conf"
2012     $cc --arm_linux_configure                 \
2013         --arm_linux_config_file="$armcc_conf" \
2014         --configure_sysroot="$sysroot"        \
2015         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2016         die "Error creating armcc configuration file."
2017     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2018     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2019     as_default="${cross_prefix}gcc"
2020     CC_DEPFLAGS='-MMD'
2021     AS_DEPFLAGS='-MMD'
2022     speed_cflags='-O3'
2023     size_cflags='-Os'
2024     filter_asflags="filter_out -W${armcc_opt}*"
2025 elif $cc -version 2>/dev/null | grep -q TMS470; then
2026     cc_type=tms470
2027     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2028     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2029     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2030     CC_O='-fr=$(@D)'
2031     as_default="${cross_prefix}gcc"
2032     ld_default="${cross_prefix}gcc"
2033     TMPO=$(basename $TMPC .c).o
2034     append TMPFILES $TMPO
2035     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2036     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2037     AS_DEPFLAGS='-MMD'
2038     speed_cflags='-O3 -mf=5'
2039     size_cflags='-O3 -mf=2'
2040     filter_cflags=tms470_flags
2041     tms470_flags(){
2042         for flag; do
2043             case $flag in
2044                 -march=*|-mcpu=*)
2045                     case "${flag#*=}" in
2046                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2047                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2048                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2049                         armv6*|arm11*)          echo -mv=6   ;;
2050                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2051                                                 echo -mv=5e  ;;
2052                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2053                     esac
2054                     ;;
2055                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2056                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2057                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2058                 -msoft-float)   echo --float_support=vfplib       ;;
2059                 -O[0-3]|-mf=*)  echo $flag                        ;;
2060                 -g)             echo -g -mn                       ;;
2061                 -pds=*)         echo $flag                        ;;
2062             esac
2063         done
2064     }
2065 elif $cc -v 2>&1 | grep -q clang; then
2066     cc_type=clang
2067     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2068         cc_version=__clang_version__ || cc_version=__VERSION__
2069     cc_ident=$($cc --version | head -n1)
2070     CC_DEPFLAGS='-MMD'
2071     AS_DEPFLAGS='-MMD'
2072     speed_cflags='-O3'
2073     size_cflags='-Os'
2074 elif $cc -V 2>&1 | grep -q Sun; then
2075     cc_type=suncc
2076     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2077     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2078     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2079     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2080     add_ldflags -xc99
2081     speed_cflags='-O5'
2082     size_cflags='-O5 -xspace'
2083     filter_cflags=suncc_flags
2084     suncc_flags(){
2085         for flag; do
2086             case $flag in
2087                 -march=*|-mcpu=*)
2088                     case "${flag#*=}" in
2089                         native)                   echo -xtarget=native       ;;
2090                         v9|niagara)               echo -xarch=sparc          ;;
2091                         ultrasparc)               echo -xarch=sparcvis       ;;
2092                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2093                         i586|pentium)             echo -xchip=pentium        ;;
2094                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2095                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2096                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2097                         pentium4*)          echo -xtarget=pentium4           ;;
2098                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2099                         *-sse3)             echo -xarch=sse3                 ;;
2100                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2101                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2102                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2103                         k8|opteron|athlon64|athlon-fx)
2104                                                   echo -xarch=sse2a          ;;
2105                         athlon*)                  echo -xarch=pentium_proa   ;;
2106                     esac
2107                     ;;
2108                 -std=c99)             echo -xc99              ;;
2109                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2110                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2111                 -W*,*)                echo $flag              ;;
2112                 -f*-*|-W*)                                    ;;
2113                 *)                    echo $flag              ;;
2114             esac
2115         done
2116     }
2117 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2118     cc_type=pathscale
2119     cc_version=__PATHSCALE__
2120     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2121     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2122     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2123     speed_cflags='-O2'
2124     size_cflags='-Os'
2125     filter_cflags='filter_out -Wdisabled-optimization'
2126 elif $cc -v 2>&1 | grep -q Open64; then
2127     cc_type=open64
2128     cc_version=__OPEN64__
2129     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2130     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2131     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2132     speed_cflags='-O2'
2133     size_cflags='-Os'
2134     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2135 fi
2136
2137 test -n "$cc_type" && enable $cc_type ||
2138     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2139
2140 : ${as_default:=$cc}
2141 : ${dep_cc_default:=$cc}
2142 : ${ld_default:=$cc}
2143 set_default ar as dep_cc ld
2144
2145 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2146 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2147
2148 add_cflags $extra_cflags
2149 add_asflags $extra_cflags
2150
2151 if test -n "$sysroot"; then
2152     case "$cc_type" in
2153         gcc|llvm_gcc|clang)
2154             add_cppflags --sysroot="$sysroot"
2155             add_ldflags --sysroot="$sysroot"
2156         ;;
2157         tms470)
2158             add_cppflags -I"$sysinclude"
2159             add_ldflags  --sysroot="$sysroot"
2160         ;;
2161     esac
2162 fi
2163
2164 if test "$cpu" = host; then
2165     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2166
2167     case "$cc_type" in
2168         gcc|llvm_gcc)
2169             check_native(){
2170                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2171                 sed -n "/cc1.*$1=/{
2172                             s/.*$1=\\([^ ]*\\).*/\\1/
2173                             p
2174                             q
2175                         }" $TMPE
2176             }
2177             cpu=$(check_native -march || check_native -mcpu)
2178         ;;
2179     esac
2180
2181     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2182 fi
2183
2184 # Deal with common $arch aliases
2185 case "$arch" in
2186     arm*)
2187         arch="arm"
2188     ;;
2189     mips|mipsel|IP*)
2190         arch="mips"
2191     ;;
2192     mips64*)
2193         arch="mips"
2194         subarch="mips64"
2195     ;;
2196     parisc|hppa)
2197         arch="parisc"
2198     ;;
2199     parisc64|hppa64)
2200         arch="parisc"
2201         subarch="parisc64"
2202     ;;
2203     "Power Macintosh"|ppc|powerpc)
2204         arch="ppc"
2205     ;;
2206     ppc64|powerpc64)
2207         arch="ppc"
2208         subarch="ppc64"
2209     ;;
2210     s390|s390x)
2211         arch="s390"
2212     ;;
2213     sh4|sh)
2214         arch="sh4"
2215     ;;
2216     sun4u|sparc64)
2217         arch="sparc"
2218         subarch="sparc64"
2219     ;;
2220     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2221         arch="x86"
2222     ;;
2223 esac
2224
2225 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2226 enable $arch
2227
2228 # Add processor-specific flags
2229 if test "$cpu" = generic; then
2230     : do nothing
2231 elif enabled ppc; then
2232
2233     case $(tolower $cpu) in
2234         601|ppc601|powerpc601)
2235             cpuflags="-mcpu=601"
2236             disable altivec
2237         ;;
2238         603*|ppc603*|powerpc603*)
2239             cpuflags="-mcpu=603"
2240             disable altivec
2241         ;;
2242         604*|ppc604*|powerpc604*)
2243             cpuflags="-mcpu=604"
2244             disable altivec
2245         ;;
2246         g3|75*|ppc75*|powerpc75*)
2247             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2248             disable altivec
2249         ;;
2250         g4|745*|ppc745*|powerpc745*)
2251             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2252         ;;
2253         74*|ppc74*|powerpc74*)
2254             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2255         ;;
2256         g5|970|ppc970|powerpc970|power4*)
2257             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2258         ;;
2259         cell)
2260             cpuflags="-mcpu=cell"
2261             enable ldbrx
2262         ;;
2263         e500v2)
2264             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2265             disable altivec
2266         ;;
2267         e500)
2268             cpuflags="-mcpu=8540 -mhard-float"
2269             disable altivec
2270         ;;
2271     esac
2272
2273 elif enabled x86; then
2274
2275     case $cpu in
2276         i[345]86|pentium)
2277             cpuflags="-march=$cpu"
2278             disable mmx
2279         ;;
2280         # targets that do NOT support conditional mov (cmov)
2281         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2282             cpuflags="-march=$cpu"
2283             disable cmov
2284         ;;
2285         # targets that do support conditional mov (cmov)
2286         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2287             cpuflags="-march=$cpu"
2288             enable cmov
2289             enable fast_cmov
2290         ;;
2291         # targets that do support conditional mov but on which it's slow
2292         pentium4|pentium4m|prescott|nocona)
2293             cpuflags="-march=$cpu"
2294             enable cmov
2295             disable fast_cmov
2296         ;;
2297     esac
2298
2299 elif enabled sparc; then
2300
2301     case $cpu in
2302         niagara)
2303             cpuflags="-mcpu=$cpu"
2304             disable vis
2305         ;;
2306         sparc64)
2307             cpuflags="-mcpu=v9"
2308         ;;
2309     esac
2310
2311 elif enabled arm; then
2312
2313     case $cpu in
2314         armv*)
2315             cpuflags="-march=$cpu"
2316             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2317         ;;
2318         *)
2319             cpuflags="-mcpu=$cpu"
2320             case $cpu in
2321                 cortex-a*)                               subarch=armv7a  ;;
2322                 cortex-r*)                               subarch=armv7r  ;;
2323                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2324                 arm11*)                                  subarch=armv6   ;;
2325                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2326                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2327             esac
2328         ;;
2329     esac
2330
2331 elif enabled alpha; then
2332
2333     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2334
2335 elif enabled bfin; then
2336
2337     cpuflags="-mcpu=$cpu"
2338
2339 elif enabled mips; then
2340
2341     cpuflags="-march=$cpu"
2342
2343 elif enabled avr32; then
2344
2345     case $cpu in
2346         ap7[02]0[0-2])
2347             subarch="avr32_ap"
2348             cpuflags="-mpart=$cpu"
2349         ;;
2350         ap)
2351             subarch="avr32_ap"
2352             cpuflags="-march=$cpu"
2353         ;;
2354         uc3[ab]*)
2355             subarch="avr32_uc"
2356             cpuflags="-mcpu=$cpu"
2357         ;;
2358         uc)
2359             subarch="avr32_uc"
2360             cpuflags="-march=$cpu"
2361         ;;
2362     esac
2363
2364 fi
2365
2366 add_cflags $cpuflags
2367 add_asflags $cpuflags
2368
2369 # compiler sanity check
2370 check_exec <<EOF
2371 int main(void){ return 0; }
2372 EOF
2373 if test "$?" != 0; then
2374     echo "$cc is unable to create an executable file."
2375     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2376         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2377         echo "Only do this if you know what cross compiling means."
2378     fi
2379     die "C compiler test failed."
2380 fi
2381
2382 add_cppflags -D_ISOC99_SOURCE
2383 check_cflags -std=c99
2384 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2385 #include <stdlib.h>
2386 EOF
2387 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2388 #include <stdlib.h>
2389 EOF
2390
2391 check_host_cflags -std=c99
2392 check_host_cflags -Wall
2393
2394 case "$arch" in
2395     alpha|ia64|mips|parisc|sparc)
2396         spic=$shared
2397     ;;
2398     x86)
2399         subarch="x86_32"
2400         check_cc <<EOF && subarch="x86_64"
2401         int test[(int)sizeof(char*) - 7];
2402 EOF
2403         if test "$subarch" = "x86_64"; then
2404             spic=$shared
2405         fi
2406     ;;
2407 esac
2408
2409 enable $subarch
2410 enabled spic && enable pic
2411
2412 # OS specific
2413 case $target_os in
2414     haiku)
2415         prefix_default="/boot/common"
2416         network_extralibs="-lnetwork"
2417         host_libs=
2418         ;;
2419     sunos)
2420         AVSERVERLDFLAGS=""
2421         SHFLAGS='-shared -Wl,-h,$$(@F)'
2422         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2423         network_extralibs="-lsocket -lnsl"
2424         add_cppflags -D__EXTENSIONS__
2425         # When using suncc to build, the Solaris linker will mark
2426         # an executable with each instruction set encountered by
2427         # the Solaris assembler.  As our libraries contain their own
2428         # guards for processor-specific code, instead suppress
2429         # generation of the HWCAPS ELF section on Solaris x86 only.
2430         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2431         nm_opts='-P -g'
2432         ;;
2433     netbsd)
2434         disable symver
2435         oss_indev_extralibs="-lossaudio"
2436         oss_outdev_extralibs="-lossaudio"
2437         ;;
2438     openbsd)
2439         enable malloc_aligned
2440         # On OpenBSD 4.5. the compiler does not use PIC unless
2441         # explicitly using -fPIC. Libav builds fine without PIC,
2442         # however the generated executable will not do anything
2443         # (simply quits with exit-code 1, no crash, no output).
2444         # Thus explicitly enable PIC here.
2445         enable pic
2446         disable symver
2447         SHFLAGS='-shared'
2448         oss_indev_extralibs="-lossaudio"
2449         oss_outdev_extralibs="-lossaudio"
2450         ;;
2451     dragonfly)
2452         enable malloc_aligned
2453         disable symver
2454         ;;
2455     freebsd)
2456         enable malloc_aligned
2457         ;;
2458     bsd/os)
2459         add_extralibs -lpoll -lgnugetopt
2460         ;;
2461     darwin)
2462         enable malloc_aligned
2463         gas="gas-preprocessor.pl $cc"
2464         enabled ppc && add_asflags -force_cpusubtype_ALL
2465         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2466         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2467         add_ldflags -Wl,-dynamic,-search_paths_first
2468         SLIBSUF=".dylib"
2469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2471         AVSERVERLDFLAGS=-Wl,-bind_at_load
2472         objformat="macho"
2473         enabled x86_64 && objformat="macho64"
2474         enabled_any pic shared ||
2475             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2476         ;;
2477     mingw32*)
2478         if test $target_os = "mingw32ce"; then
2479             disable network
2480         else
2481             target_os=mingw32
2482         fi
2483         LIBTARGET=i386
2484         if enabled x86_64; then
2485             enable malloc_aligned
2486             LIBTARGET="i386:x86-64"
2487         elif enabled arm; then
2488             LIBTARGET=arm-wince
2489         fi
2490         shlibdir_default="$bindir_default"
2491         SLIBPREF=""
2492         SLIBSUF=".dll"
2493         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2494         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2495         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2496         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2497         SLIB_INSTALL_LINKS=
2498         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2499         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2500         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'
2501         objformat="win32"
2502         dlltool="${cross_prefix}dlltool"
2503         enable dos_paths
2504         check_cflags -fno-common
2505         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2506                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2507                 die "ERROR: MinGW runtime version must be >= 3.15."
2508         add_cppflags -U__STRICT_ANSI__
2509         ;;
2510     cygwin*)
2511         target_os=cygwin
2512         shlibdir_default="$bindir_default"
2513         SLIBPREF="cyg"
2514         SLIBSUF=".dll"
2515         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2516         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2517         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2518         objformat="win32"
2519         enable dos_paths
2520         check_cflags -fno-common
2521         add_cppflags -U__STRICT_ANSI__
2522         ;;
2523     *-dos|freedos|opendos)
2524         network_extralibs="-lsocket"
2525         objformat="coff"
2526         enable dos_paths
2527         add_cppflags -U__STRICT_ANSI__
2528         ;;
2529     linux)
2530         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2531         enable dv1394
2532         ;;
2533     irix*)
2534         target_os=irix
2535         ranlib="echo ignoring ranlib"
2536         ;;
2537     os/2*)
2538         ln_s="cp -f"
2539         objformat="aout"
2540         add_cppflags -D_GNU_SOURCE
2541         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2542         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2543         AVSERVERLDFLAGS=""
2544         LIBSUF="_s.a"
2545         SLIBPREF=""
2546         SLIBSUF=".dll"
2547         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2548         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2549         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2550           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2551           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2552           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2553           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2554           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2555         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2556           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2557         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2558         enable dos_paths
2559         ;;
2560     gnu/kfreebsd)
2561         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2562         ;;
2563     gnu)
2564         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2565         ;;
2566     qnx)
2567         add_cppflags -D_QNX_SOURCE
2568         network_extralibs="-lsocket"
2569         ;;
2570     symbian)
2571         SLIBSUF=".dll"
2572         enable dos_paths
2573         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2574         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2575         add_ldflags -Wl,--target1-abs,--no-undefined \
2576                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2577                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2578         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2579                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2580                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2581         ;;
2582     none)
2583         ;;
2584     *)
2585         die "Unknown OS '$target_os'."
2586         ;;
2587 esac
2588
2589 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2590
2591 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2592
2593 set_default $PATHS_LIST
2594
2595 # we need to build at least one lib type
2596 if ! enabled_any static shared; then
2597     cat <<EOF
2598 At least one library type must be built.
2599 Specify --enable-static to build the static libraries or --enable-shared to
2600 build the shared libraries as well. To only build the shared libraries specify
2601 --disable-static in addition to --enable-shared.
2602 EOF
2603     exit 1;
2604 fi
2605
2606 die_license_disabled() {
2607     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2608 }
2609
2610 die_license_disabled gpl libcdio
2611 die_license_disabled gpl libx264
2612 die_license_disabled gpl libxavs
2613 die_license_disabled gpl libxvid
2614 die_license_disabled gpl x11grab
2615
2616 die_license_disabled nonfree libfaac
2617 die_license_disabled nonfree openssl
2618
2619 die_license_disabled version3 libopencore_amrnb
2620 die_license_disabled version3 libopencore_amrwb
2621 die_license_disabled version3 libvo_aacenc
2622 die_license_disabled version3 libvo_amrwbenc
2623
2624 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2625
2626 disabled optimizations || check_cflags -fomit-frame-pointer
2627
2628 enable_pic() {
2629     enable pic
2630     add_cppflags -DPIC
2631     add_cflags   -fPIC
2632     add_asflags  -fPIC
2633 }
2634
2635 enabled pic && enable_pic
2636
2637 check_cc <<EOF || die "Symbol mangling check failed."
2638 int ff_extern;
2639 EOF
2640 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2641 extern_prefix=${sym%%ff_extern*}
2642
2643 check_cc <<EOF && enable inline_asm
2644 void foo(void) { __asm__ volatile ("" ::); }
2645 EOF
2646
2647 _restrict=
2648 for restrict_keyword in restrict __restrict__ __restrict; do
2649     check_cc <<EOF && _restrict=$restrict_keyword && break
2650 void foo(char * $restrict_keyword p);
2651 EOF
2652 done
2653
2654 check_cc <<EOF && enable attribute_packed
2655 struct { int x; } __attribute__((packed)) x;
2656 EOF
2657
2658 check_cc <<EOF && enable attribute_may_alias
2659 union { int x; } __attribute__((may_alias)) x;
2660 EOF
2661
2662 check_cc <<EOF || die "endian test failed"
2663 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2664 EOF
2665 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2666
2667 if enabled alpha; then
2668
2669     check_cflags -mieee
2670
2671 elif enabled arm; then
2672
2673     enabled thumb && check_cflags -mthumb || check_cflags -marm
2674     nogas=die
2675
2676     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2677         enable vfp_args
2678     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2679         case "${cross_prefix:-$cc}" in
2680             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2681             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2682 __asm__ (".eabi_attribute 28, 1");
2683 int main(void) { return 0; }
2684 EOF
2685         esac
2686         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2687     fi
2688
2689     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2690     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2691     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2692     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2693     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2694     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2695     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2696
2697     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2698
2699     enabled_all armv6t2 shared !pic && enable_pic
2700
2701 elif enabled mips; then
2702
2703     check_asm loongson '"dmult.g $1, $2, $3"'
2704     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2705
2706 elif enabled ppc; then
2707
2708     enable local_aligned_8 local_aligned_16
2709
2710     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2711     check_asm ibm_asm   '"add 0, 0, 0"'
2712     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2713     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2714
2715     # AltiVec flags: The FSF version of GCC differs from the Apple version
2716     if enabled altivec; then
2717         nogas=warn
2718         check_cflags -maltivec -mabi=altivec &&
2719         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2720         check_cflags -faltivec
2721
2722         # check if our compiler supports Motorola AltiVec C API
2723         check_cc <<EOF || disable altivec
2724 $inc_altivec_h
2725 int main(void) {
2726     vector signed int v1, v2, v3;
2727     v1 = vec_add(v2,v3);
2728     return 0;
2729 }
2730 EOF
2731
2732         # check if our compiler supports braces for vector declarations
2733         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2734 $inc_altivec_h
2735 int main (void) { (vector int) {1}; return 0; }
2736 EOF
2737     fi
2738
2739 elif enabled sparc; then
2740
2741     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2742         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2743
2744 elif enabled x86; then
2745
2746     enable local_aligned_8 local_aligned_16
2747
2748     # check whether EBP is available on x86
2749     # As 'i' is stored on the stack, this program will crash
2750     # if the base pointer is used to access it because the
2751     # base pointer is cleared in the inline assembly code.
2752     check_exec_crash <<EOF && enable ebp_available
2753     volatile int i=0;
2754     __asm__ volatile (
2755         "xorl %%ebp, %%ebp"
2756     ::: "%ebp");
2757     return i;
2758 EOF
2759
2760     # check whether EBX is available on x86
2761     check_asm ebx_available '""::"b"(0)' &&
2762         check_asm ebx_available '"":::"%ebx"'
2763
2764     # check whether xmm clobbers are supported
2765     check_asm xmm_clobbers '"":::"%xmm0"'
2766
2767     # check whether binutils is new enough to compile SSSE3/MMX2
2768     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2769     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2770
2771     if ! disabled_any asm mmx yasm; then
2772         if check_cmd $yasmexe --version; then
2773             enabled x86_64 && yasm_extra="-m amd64"
2774             yasm_debug="-g dwarf2"
2775         elif check_cmd nasm -v; then
2776             yasmexe=nasm
2777             yasm_debug="-g -F dwarf"
2778             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2779         fi
2780
2781         YASMFLAGS="-f $objformat $yasm_extra"
2782         enabled pic               && append YASMFLAGS "-DPIC"
2783         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2784         case "$objformat" in
2785             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2786         esac
2787
2788         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2789             die "yasm not found, use --disable-yasm for a crippled build"
2790         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2791     fi
2792
2793     case "$cpu" in
2794         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2795             disable fast_clz
2796         ;;
2797     esac
2798
2799 fi
2800
2801 if enabled asm; then
2802     as=${gas:=$as}
2803     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2804         $nogas "GNU assembler not found, install gas-preprocessor"
2805 fi
2806
2807 check_ldflags -Wl,--as-needed
2808
2809 if check_func dlopen; then
2810     ldl=
2811 elif check_func dlopen -ldl; then
2812     ldl=-ldl
2813 fi
2814
2815 if enabled network; then
2816     check_type "sys/types.h sys/socket.h" socklen_t
2817     check_type netdb.h "struct addrinfo"
2818     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2819     check_type netinet/in.h "struct sockaddr_in6"
2820     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2821     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2822     # Prefer arpa/inet.h over winsock2
2823     if check_header arpa/inet.h ; then
2824         check_func closesocket
2825     elif check_header winsock2.h ; then
2826         check_func_headers winsock2.h closesocket -lws2 && \
2827             network_extralibs="-lws2" || \
2828         { check_func_headers winsock2.h closesocket -lws2_32 && \
2829             network_extralibs="-lws2_32"; }
2830         check_type ws2tcpip.h socklen_t
2831         check_type ws2tcpip.h "struct addrinfo"
2832         check_type ws2tcpip.h "struct ipv6_mreq"
2833         check_type ws2tcpip.h "struct sockaddr_in6"
2834         check_type ws2tcpip.h "struct sockaddr_storage"
2835         check_struct winsock2.h "struct sockaddr" sa_len
2836     else
2837         disable network
2838     fi
2839 fi
2840
2841 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2842 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2843
2844 check_func  fcntl
2845 check_func  fork
2846 check_func  getaddrinfo $network_extralibs
2847 check_func  gethrtime
2848 check_func  getrusage
2849 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2850 check_func  inet_aton $network_extralibs
2851 check_func  isatty
2852 check_func  localtime_r
2853 check_func  ${malloc_prefix}memalign            && enable memalign
2854 check_func  mkstemp
2855 check_func  mmap
2856 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2857 check_func  setrlimit
2858 check_func  strerror_r
2859 check_func  strptime
2860 check_func  strtok_r
2861 check_func  sched_getaffinity
2862 check_func  sysconf
2863 check_func  sysctl
2864 check_func_headers io.h setmode
2865 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2866 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2867 check_func_headers windows.h GetProcessAffinityMask
2868 check_func_headers windows.h GetProcessTimes
2869 check_func_headers windows.h MapViewOfFile
2870 check_func_headers windows.h VirtualAlloc
2871
2872 check_header dlfcn.h
2873 check_header dxva2api.h
2874 check_header malloc.h
2875 check_header poll.h
2876 check_header sys/mman.h
2877 check_header sys/param.h
2878 check_header sys/resource.h
2879 check_header sys/select.h
2880 check_header vdpau/vdpau.h
2881 check_header vdpau/vdpau_x11.h
2882 check_header X11/extensions/XvMClib.h
2883
2884 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2885 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2886
2887 if ! disabled w32threads && ! enabled pthreads; then
2888     check_func _beginthreadex && enable w32threads
2889 fi
2890
2891 # check for some common methods of building with pthread support
2892 # do this before the optional library checks as some of them require pthreads
2893 if ! disabled pthreads && ! enabled w32threads; then
2894     enable pthreads
2895     if check_func pthread_create; then
2896         :
2897     elif check_func pthread_create -pthread; then
2898         add_cflags -pthread
2899         add_extralibs -pthread
2900     elif check_func pthread_create -pthreads; then
2901         add_cflags -pthreads
2902         add_extralibs -pthreads
2903     elif check_func pthread_create -lpthreadGC2; then
2904         add_extralibs -lpthreadGC2
2905     elif ! check_lib pthread.h pthread_create -lpthread; then
2906         disable pthreads
2907     fi
2908 fi
2909
2910 for thread in $THREADS_LIST; do
2911     if enabled $thread; then
2912         test -n "$thread_type" &&
2913             die "ERROR: Only one thread type must be selected." ||
2914             thread_type="$thread"
2915     fi
2916 done
2917
2918 check_lib math.h sin -lm && LIBM="-lm"
2919 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2920
2921 check_mathfunc exp2
2922 check_mathfunc exp2f
2923 check_mathfunc llrint
2924 check_mathfunc llrintf
2925 check_mathfunc log2
2926 check_mathfunc log2f
2927 check_mathfunc lrint
2928 check_mathfunc lrintf
2929 check_mathfunc round
2930 check_mathfunc roundf
2931 check_mathfunc trunc
2932 check_mathfunc truncf
2933
2934 # these are off by default, so fail if requested and not available
2935 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2936 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2937 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2938 enabled libdirac   && require_pkg_config dirac                          \
2939     "libdirac_decoder/dirac_parser.h"  \
2940     "dirac_decoder_init"
2941 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2942 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2943 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2944 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2945 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2946 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2947 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2948 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2949 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2950 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2951 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2952 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2953 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2954 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2955 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2956 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2957 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2958 enabled libvpx     && {
2959     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2960                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2961     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2962                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2963 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2964                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2965                         die "ERROR: libx264 version must be >= 0.118."; }
2966 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2967 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2968 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2969                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2970                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2971                         die "ERROR: openssl not found"; }
2972
2973 # libdc1394 check
2974 if enabled libdc1394; then
2975     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2976         enable libdc1394_2; } ||
2977     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2978         enable libdc1394_1; } ||
2979     die "ERROR: No version of libdc1394 found "
2980 fi
2981
2982 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2983     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2984     enable sdl &&
2985     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2986 fi
2987
2988 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2989
2990 check_header linux/fb.h
2991 check_header linux/videodev2.h
2992 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2993
2994 check_header sys/videoio.h
2995
2996 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2997 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2998 # w32api 3.12 had it defined wrong
2999 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3000
3001 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3002 { check_header dev/bktr/ioctl_meteor.h &&
3003   check_header dev/bktr/ioctl_bt848.h; } ||
3004 { check_header machine/ioctl_meteor.h &&
3005   check_header machine/ioctl_bt848.h; } ||
3006 { check_header dev/video/meteor/ioctl_meteor.h &&
3007   check_header dev/video/bktr/ioctl_bt848.h; } ||
3008 check_header dev/ic/bt8xx.h
3009
3010 check_header sndio.h
3011 check_header sys/soundcard.h
3012 check_header soundcard.h
3013
3014 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3015
3016 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3017
3018 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3019
3020 enabled libcdio &&
3021     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3022
3023 enabled x11grab                         &&
3024 check_header X11/Xlib.h                 &&
3025 check_header X11/extensions/XShm.h      &&
3026 check_header X11/extensions/Xfixes.h    &&
3027 check_func XOpenDisplay -lX11           &&
3028 check_func XShmCreateImage -lX11 -lXext &&
3029 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3030
3031 # check for VDA header
3032 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3033     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3034 fi
3035
3036 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3037 check_cpp_condition \
3038     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3039     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3040       disable vdpau; }
3041 fi
3042
3043 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3044
3045 # add some useful compiler flags if supported
3046 check_cflags -Wdeclaration-after-statement
3047 check_cflags -Wall
3048 check_cflags -Wno-parentheses
3049 check_cflags -Wno-switch
3050 check_cflags -Wno-format-zero-length
3051 check_cflags -Wdisabled-optimization
3052 check_cflags -Wpointer-arith
3053 check_cflags -Wredundant-decls
3054 check_cflags -Wno-pointer-sign
3055 check_cflags -Wcast-qual
3056 check_cflags -Wwrite-strings
3057 check_cflags -Wtype-limits
3058 check_cflags -Wundef
3059 check_cflags -Wmissing-prototypes
3060 check_cflags -Wstrict-prototypes
3061 enabled extra_warnings && check_cflags -Winline
3062
3063 # add some linker flags
3064 check_ldflags -Wl,--warn-common
3065 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3066 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3067
3068 enabled xmm_clobber_test &&                             \
3069     check_ldflags -Wl,--wrap,avcodec_open2              \
3070                   -Wl,--wrap,avcodec_decode_audio4      \
3071                   -Wl,--wrap,avcodec_decode_video2      \
3072                   -Wl,--wrap,avcodec_decode_subtitle2   \
3073                   -Wl,--wrap,avcodec_encode_audio2      \
3074                   -Wl,--wrap,avcodec_encode_video       \
3075                   -Wl,--wrap,avcodec_encode_subtitle    \
3076                   -Wl,--wrap,sws_scale ||               \
3077     disable xmm_clobber_test
3078
3079 echo "X{};" > $TMPV
3080 if test_ldflags -Wl,--version-script,$TMPV; then
3081     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3082     check_cc <<EOF && enable symver_asm_label
3083 void ff_foo(void) __asm__ ("av_foo@VERSION");
3084 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3085 EOF
3086     check_cc <<EOF && enable symver_gnu_asm
3087 __asm__(".symver ff_foo,av_foo@VERSION");
3088 void ff_foo(void) {}
3089 EOF
3090 fi
3091
3092 if [ -n "$optflags" ]; then
3093     add_cflags $optflags
3094 elif enabled small; then
3095     add_cflags $size_cflags
3096 elif enabled optimizations; then
3097     add_cflags $speed_cflags
3098 else
3099     add_cflags $noopt_cflags
3100 fi
3101 check_cflags -fno-math-errno
3102 check_cflags -fno-signed-zeros
3103
3104 if enabled icc; then
3105     # Just warnings, no remarks
3106     check_cflags -w1
3107     # -wd: Disable following warnings
3108     # 144, 167, 556: -Wno-pointer-sign
3109     # 1292: attribute "foo" ignored
3110     # 10006: ignoring unknown option -fno-signed-zeros
3111     # 10148: ignoring unknown option -Wno-parentheses
3112     # 10156: ignoring option '-W'; no argument required
3113     check_cflags -wd144,167,556,1292,10006,10148,10156
3114     # 11030: Warning unknown option --as-needed
3115     # 10156: ignoring option '-export'; no argument required
3116     check_ldflags -wd10156,11030
3117     # Allow to compile with optimizations
3118     check_ldflags -march=$cpu
3119     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3120     enable ebp_available
3121     if enabled x86_32; then
3122         test ${icc_version%%.*} -ge 11 && \
3123             check_cflags -falign-stack=maintain-16-byte || \
3124             disable aligned_stack
3125     fi
3126 elif enabled ccc; then
3127     # disable some annoying warnings
3128     add_cflags -msg_disable cvtu32to64
3129     add_cflags -msg_disable embedcomment
3130     add_cflags -msg_disable needconstext
3131     add_cflags -msg_disable nomainieee
3132     add_cflags -msg_disable ptrmismatch1
3133     add_cflags -msg_disable unreachcode
3134 elif enabled gcc; then
3135     check_cflags -fno-tree-vectorize
3136     check_cflags -Werror=implicit-function-declaration
3137     check_cflags -Werror=missing-prototypes
3138     check_cflags -Werror=declaration-after-statement
3139 elif enabled llvm_gcc; then
3140     check_cflags -mllvm -stack-alignment=16
3141 elif enabled clang; then
3142     check_cflags -mllvm -stack-alignment=16
3143     check_cflags -Qunused-arguments
3144 elif enabled armcc; then
3145     # 2523: use of inline assembler is deprecated
3146     add_cflags -W${armcc_opt},--diag_suppress=2523
3147     add_cflags -W${armcc_opt},--diag_suppress=1207
3148     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3149     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3150     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3151     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3152 elif enabled tms470; then
3153     add_cflags -pds=824 -pds=837
3154 elif enabled pathscale; then
3155     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3156 fi
3157
3158 enabled_any $THREADS_LIST      && enable threads
3159
3160 check_deps $CONFIG_LIST       \
3161            $CONFIG_EXTRA      \
3162            $HAVE_LIST         \
3163            $ALL_COMPONENTS    \
3164            $ALL_TESTS         \
3165
3166 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3167
3168 ! enabled_any memalign posix_memalign malloc_aligned &&
3169     enabled_any $need_memalign && enable memalign_hack
3170
3171 echo "install prefix            $prefix"
3172 echo "source path               $source_path"
3173 echo "C compiler                $cc"
3174 echo "ARCH                      $arch ($cpu)"
3175 if test "$build_suffix" != ""; then
3176     echo "build suffix              $build_suffix"
3177 fi
3178 if test "$extra_version" != ""; then
3179     echo "version string suffix     $extra_version"
3180 fi
3181 echo "big-endian                ${bigendian-no}"
3182 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3183 if enabled x86; then
3184     echo "${yasmexe}                      ${yasm-no}"
3185     echo "MMX enabled               ${mmx-no}"
3186     echo "MMX2 enabled              ${mmx2-no}"
3187     echo "3DNow! enabled            ${amd3dnow-no}"
3188     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3189     echo "SSE enabled               ${sse-no}"
3190     echo "SSSE3 enabled             ${ssse3-no}"
3191     echo "AVX enabled               ${avx-no}"
3192     echo "CMOV enabled              ${cmov-no}"
3193     echo "CMOV is fast              ${fast_cmov-no}"
3194     echo "EBX available             ${ebx_available-no}"
3195     echo "EBP available             ${ebp_available-no}"
3196 fi
3197 if enabled arm; then
3198     echo "ARMv5TE enabled           ${armv5te-no}"
3199     echo "ARMv6 enabled             ${armv6-no}"
3200     echo "ARMv6T2 enabled           ${armv6t2-no}"
3201     echo "ARM VFP enabled           ${armvfp-no}"
3202     echo "IWMMXT enabled            ${iwmmxt-no}"
3203     echo "NEON enabled              ${neon-no}"
3204 fi
3205 if enabled mips; then
3206     echo "MMI enabled               ${mmi-no}"
3207 fi
3208 if enabled ppc; then
3209     echo "AltiVec enabled           ${altivec-no}"
3210     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3211     echo "dcbzl available           ${dcbzl-no}"
3212 fi
3213 if enabled sparc; then
3214     echo "VIS enabled               ${vis-no}"
3215 fi
3216 echo "debug symbols             ${debug-no}"
3217 echo "optimize for size         ${small-no}"
3218 echo "optimizations             ${optimizations-no}"
3219 echo "static                    ${static-no}"
3220 echo "shared                    ${shared-no}"
3221 echo "new filter support        ${avfilter-no}"
3222 echo "network support           ${network-no}"
3223 echo "threading support         ${thread_type-no}"
3224 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3225 echo "SDL support               ${sdl-no}"
3226 echo "libdxva2 enabled          ${dxva2-no}"
3227 echo "libva enabled             ${vaapi-no}"
3228 echo "libvdpau enabled          ${vdpau-no}"
3229 echo "AVISynth enabled          ${avisynth-no}"
3230 echo "frei0r enabled            ${frei0r-no}"
3231 echo "gnutls enabled            ${gnutls-no}"
3232 echo "libcdio support           ${libcdio-no}"
3233 echo "libdc1394 support         ${libdc1394-no}"
3234 echo "libdirac enabled          ${libdirac-no}"
3235 echo "libfaac enabled           ${libfaac-no}"
3236 echo "libgsm enabled            ${libgsm-no}"
3237 echo "libmp3lame enabled        ${libmp3lame-no}"
3238 echo "libnut enabled            ${libnut-no}"
3239 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3240 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3241 echo "libopencv support         ${libopencv-no}"
3242 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3243 echo "libpulse enabled          ${libpulse-no}"
3244 echo "librtmp enabled           ${librtmp-no}"
3245 echo "libschroedinger enabled   ${libschroedinger-no}"
3246 echo "libspeex enabled          ${libspeex-no}"
3247 echo "libtheora enabled         ${libtheora-no}"
3248 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3249 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3250 echo "libvorbis enabled         ${libvorbis-no}"
3251 echo "libvpx enabled            ${libvpx-no}"
3252 echo "libx264 enabled           ${libx264-no}"
3253 echo "libxavs enabled           ${libxavs-no}"
3254 echo "libxvid enabled           ${libxvid-no}"
3255 echo "openssl enabled           ${openssl-no}"
3256 echo "zlib enabled              ${zlib-no}"
3257 echo "bzlib enabled             ${bzlib-no}"
3258 echo
3259
3260 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3261     echo "Enabled ${type}s:"
3262     eval list=\$$(toupper $type)_LIST
3263     print_enabled '_*' $list | sort | pr -r -3 -t
3264     echo
3265 done
3266
3267 license="LGPL version 2.1 or later"
3268 if enabled nonfree; then
3269     license="nonfree and unredistributable"
3270 elif enabled gplv3; then
3271     license="GPL version 3 or later"
3272 elif enabled lgplv3; then
3273     license="LGPL version 3 or later"
3274 elif enabled gpl; then
3275     license="GPL version 2 or later"
3276 fi
3277
3278 echo "License: $license"
3279
3280 echo "Creating config.mak and config.h..."
3281
3282 test -e Makefile || $ln_s "$source_path/Makefile" .
3283
3284 config_files="$TMPH config.mak"
3285
3286 cat > config.mak <<EOF
3287 # Automatically generated by configure - do not modify!
3288 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3289 prefix=$prefix
3290 LIBDIR=\$(DESTDIR)$libdir
3291 SHLIBDIR=\$(DESTDIR)$shlibdir
3292 INCDIR=\$(DESTDIR)$incdir
3293 BINDIR=\$(DESTDIR)$bindir
3294 DATADIR=\$(DESTDIR)$datadir
3295 MANDIR=\$(DESTDIR)$mandir
3296 SRC_PATH=$source_path
3297 CC_IDENT=$cc_ident
3298 ARCH=$arch
3299 CC=$cc
3300 AS=$as
3301 LD=$ld
3302 DEPCC=$dep_cc
3303 YASM=$yasmexe
3304 YASMDEP=$yasmexe
3305 AR=$ar
3306 RANLIB=$ranlib
3307 LN_S=$ln_s
3308 CPPFLAGS=$CPPFLAGS
3309 CFLAGS=$CFLAGS
3310 ASFLAGS=$ASFLAGS
3311 AS_O=$CC_O
3312 CC_O=$CC_O
3313 DLLTOOL=$dlltool
3314 LDFLAGS=$LDFLAGS
3315 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3316 SHFLAGS=$SHFLAGS
3317 YASMFLAGS=$YASMFLAGS
3318 BUILDSUF=$build_suffix
3319 FULLNAME=$FULLNAME
3320 LIBPREF=$LIBPREF
3321 LIBSUF=$LIBSUF
3322 LIBNAME=$LIBNAME
3323 SLIBPREF=$SLIBPREF
3324 SLIBSUF=$SLIBSUF
3325 EXESUF=$EXESUF
3326 EXTRA_VERSION=$extra_version
3327 DEPFLAGS=$DEPFLAGS
3328 CCDEP=$CCDEP
3329 ASDEP=$ASDEP
3330 CC_DEPFLAGS=$CC_DEPFLAGS
3331 AS_DEPFLAGS=$AS_DEPFLAGS
3332 HOSTCC=$host_cc
3333 HOSTCFLAGS=$host_cflags
3334 HOSTEXESUF=$HOSTEXESUF
3335 HOSTLDFLAGS=$host_ldflags
3336 HOSTLIBS=$host_libs
3337 TARGET_EXEC=$target_exec
3338 TARGET_PATH=$target_path
3339 SDL_LIBS=$sdl_libs
3340 SDL_CFLAGS=$sdl_cflags
3341 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3342 EXTRALIBS=$extralibs
3343 INSTALL=install
3344 LIBTARGET=${LIBTARGET}
3345 SLIBNAME=${SLIBNAME}
3346 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3347 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3348 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3349 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3350 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3351 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3352 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3353 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3354 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3355 EOF
3356
3357 get_version(){
3358     name=$1
3359     file=$source_path/$2
3360     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3361     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3362     lcname=$(tolower $name)
3363     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3364     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3365 }
3366
3367 get_version LIBAVCODEC  libavcodec/version.h
3368 get_version LIBAVDEVICE libavdevice/avdevice.h
3369 get_version LIBAVFILTER libavfilter/version.h
3370 get_version LIBAVFORMAT libavformat/version.h
3371 get_version LIBAVUTIL   libavutil/avutil.h
3372 get_version LIBSWSCALE  libswscale/swscale.h
3373
3374 cat > $TMPH <<EOF
3375 /* Automatically generated by configure - do not modify! */
3376 #ifndef LIBAV_CONFIG_H
3377 #define LIBAV_CONFIG_H
3378 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3379 #define LIBAV_LICENSE "$(c_escape $license)"
3380 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3381 #define CC_TYPE "$cc_type"
3382 #define CC_VERSION $cc_version
3383 #define restrict $_restrict
3384 #define EXTERN_PREFIX "${extern_prefix}"
3385 #define EXTERN_ASM ${extern_prefix}
3386 #define SLIBSUF "$SLIBSUF"
3387 EOF
3388
3389 test -n "$malloc_prefix" &&
3390     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3391
3392 if enabled small || disabled optimizations; then
3393     echo "#undef  av_always_inline"  >> $TMPH
3394     if enabled small; then
3395         echo "#define av_always_inline inline"  >> $TMPH
3396     else
3397         echo "#define av_always_inline av_unused"  >> $TMPH
3398     fi
3399 fi
3400
3401 if enabled yasm; then
3402     append config_files $TMPASM
3403     printf '' >$TMPASM
3404 fi
3405
3406 print_config ARCH_   "$config_files" $ARCH_LIST
3407 print_config HAVE_   "$config_files" $HAVE_LIST
3408 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3409                                      $CONFIG_EXTRA      \
3410                                      $ALL_COMPONENTS    \
3411
3412 cat >>config.mak <<EOF
3413 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3414 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3415 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3416 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3417 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3418 EOF
3419
3420 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3421
3422 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3423 cp_if_changed $TMPH config.h
3424 touch .config
3425
3426 enabled yasm && cp_if_changed $TMPASM config.asm
3427
3428 cat > $TMPH <<EOF
3429 /* Generated by ffconf */
3430 #ifndef AVUTIL_AVCONFIG_H
3431 #define AVUTIL_AVCONFIG_H
3432 EOF
3433
3434 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3435
3436 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3437
3438 cp_if_changed $TMPH libavutil/avconfig.h
3439
3440 test -n "$WARNINGS" && printf "\n$WARNINGS"
3441
3442 # build pkg-config files
3443
3444 pkgconfig_generate(){
3445 name=$1
3446 shortname=${name#lib}${build_suffix}
3447 comment=$2
3448 version=$3
3449 libs=$4
3450 requires=$5
3451 enabled ${name#lib} || return 0
3452 mkdir -p $name
3453 cat <<EOF > $name/$name.pc
3454 prefix=$prefix
3455 exec_prefix=\${prefix}
3456 libdir=$libdir
3457 includedir=$incdir
3458
3459 Name: $name
3460 Description: $comment
3461 Version: $version
3462 Requires: $(enabled shared || echo $requires)
3463 Requires.private: $(enabled shared && echo $requires)
3464 Conflicts:
3465 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3466 Libs.private: $(enabled shared && echo $libs)
3467 Cflags: -I\${includedir}
3468 EOF
3469 cat <<EOF > $name/$name-uninstalled.pc
3470 prefix=
3471 exec_prefix=
3472 libdir=\${pcfiledir}
3473 includedir=${source_path}
3474
3475 Name: $name
3476 Description: $comment
3477 Version: $version
3478 Requires: $requires
3479 Conflicts:
3480 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3481 Cflags: -I\${includedir}
3482 EOF
3483 }
3484
3485 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3486 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3487 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3488 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3489 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3490 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"