Remove ffmpeg.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-avconv         disable avconv build
84   --disable-avplay         disable avplay build
85   --disable-avprobe        disable avprobe build
86   --disable-avserver       disable avserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --enable-postproc        enable libpostproc build (deprecated) [no]
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --disable-w32threads     disable Win32 threads [auto]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vda             enable VDA code
111   --enable-vdpau           enable VDPAU code
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --disable-safe-bitstream-reader
116                            disable buffer boundary checking in bitreaders
117                            (faster, but may crash)
118   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
119   --disable-everything     disable all components listed below
120   --disable-encoder=NAME   disable encoder NAME
121   --enable-encoder=NAME    enable encoder NAME
122   --disable-encoders       disable all encoders
123   --disable-decoder=NAME   disable decoder NAME
124   --enable-decoder=NAME    enable decoder NAME
125   --disable-decoders       disable all decoders
126   --disable-hwaccel=NAME   disable hwaccel NAME
127   --enable-hwaccel=NAME    enable hwaccel NAME
128   --disable-hwaccels       disable all hwaccels
129   --disable-muxer=NAME     disable muxer NAME
130   --enable-muxer=NAME      enable muxer NAME
131   --disable-muxers         disable all muxers
132   --disable-demuxer=NAME   disable demuxer NAME
133   --enable-demuxer=NAME    enable demuxer NAME
134   --disable-demuxers       disable all demuxers
135   --enable-parser=NAME     enable parser NAME
136   --disable-parser=NAME    disable parser NAME
137   --disable-parsers        disable all parsers
138   --enable-bsf=NAME        enable bitstream filter NAME
139   --disable-bsf=NAME       disable bitstream filter NAME
140   --disable-bsfs           disable all bitstream filters
141   --enable-protocol=NAME   enable protocol NAME
142   --disable-protocol=NAME  disable protocol NAME
143   --disable-protocols      disable all protocols
144   --disable-indev=NAME     disable input device NAME
145   --disable-outdev=NAME    disable output device NAME
146   --disable-indevs         disable input devices
147   --disable-outdevs        disable output devices
148   --disable-devices        disable all devices
149   --enable-filter=NAME     enable filter NAME
150   --disable-filter=NAME    disable filter NAME
151   --disable-filters        disable all filters
152   --list-decoders          show all available decoders
153   --list-encoders          show all available encoders
154   --list-hwaccels          show all available hardware accelerators
155   --list-muxers            show all available muxers
156   --list-demuxers          show all available demuxers
157   --list-parsers           show all available parsers
158   --list-protocols         show all available protocols
159   --list-bsfs              show all available bitstream filters
160   --list-indevs            show all available input devices
161   --list-outdevs           show all available output devices
162   --list-filters           show all available filters
163
164 External library support:
165   --enable-avisynth        enable reading of AVISynth script files [no]
166   --enable-bzlib           enable bzlib [autodetect]
167   --enable-frei0r          enable frei0r video filtering
168   --enable-gnutls          enable gnutls [no]
169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
171   --enable-libopencv       enable video filtering via libopencv [no]
172   --enable-libcdio         enable audio CD grabbing with libcdio
173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
174                            and libraw1394 [no]
175   --enable-libdirac        enable Dirac support via libdirac [no]
176   --enable-libfaac         enable FAAC support via libfaac [no]
177   --enable-libfreetype     enable libfreetype [no]
178   --enable-libgsm          enable GSM support via libgsm [no]
179   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
180   --enable-libnut          enable NUT (de)muxing via libnut,
181                            native (de)muxer exists [no]
182   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
183   --enable-libpulse        enable Pulseaudio input via libpulse [no]
184   --enable-librtmp         enable RTMP[E] support via librtmp [no]
185   --enable-libschroedinger enable Dirac support via libschroedinger [no]
186   --enable-libspeex        enable Speex support via libspeex [no]
187   --enable-libtheora       enable Theora encoding via libtheora [no]
188   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
189   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
190   --enable-libvorbis       enable Vorbis encoding via libvorbis,
191                            native implementation exists [no]
192   --enable-libvpx          enable VP8 support via libvpx [no]
193   --enable-libx264         enable H.264 encoding via x264 [no]
194   --enable-libxavs         enable AVS encoding via xavs [no]
195   --enable-libxvid         enable Xvid encoding via xvidcore,
196                            native MPEG-4/Xvid encoder exists [no]
197   --enable-mlib            enable Sun medialib [no]
198   --enable-openssl         enable openssl [no]
199   --enable-zlib            enable zlib [autodetect]
200
201 Advanced options (experts only):
202   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
203   --enable-cross-compile   assume a cross-compiler is used
204   --sysroot=PATH           root of cross-build tree
205   --sysinclude=PATH        location of cross-build system headers
206   --target-os=OS           compiler targets OS [$target_os]
207   --target-exec=CMD        command to run executables on target
208   --target-path=DIR        path to view of build directory on target
209   --nm=NM                  use nm tool
210   --ar=AR                  use archive tool AR [$ar_default]
211   --as=AS                  use assembler AS [$as_default]
212   --cc=CC                  use C compiler CC [$cc_default]
213   --ld=LD                  use linker LD
214   --host-cc=HOSTCC         use host C compiler HOSTCC
215   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
216   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
217   --host-libs=HLIBS        use libs HLIBS when linking for host
218   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
219   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
220   --extra-libs=ELIBS       add ELIBS [$ELIBS]
221   --extra-version=STRING   version string suffix []
222   --build-suffix=SUFFIX    library name suffix []
223   --arch=ARCH              select architecture [$arch]
224   --cpu=CPU                select the minimum required CPU (affects
225                            instruction selection, may crash on older CPUs)
226   --disable-asm            disable all assembler optimizations
227   --disable-altivec        disable AltiVec optimizations
228   --disable-amd3dnow       disable 3DNow! optimizations
229   --disable-amd3dnowext    disable 3DNow! extended optimizations
230   --disable-mmx            disable MMX optimizations
231   --disable-mmx2           disable MMX2 optimizations
232   --disable-sse            disable SSE optimizations
233   --disable-ssse3          disable SSSE3 optimizations
234   --disable-avx            disable AVX optimizations
235   --disable-armv5te        disable armv5te optimizations
236   --disable-armv6          disable armv6 optimizations
237   --disable-armv6t2        disable armv6t2 optimizations
238   --disable-armvfp         disable ARM VFP optimizations
239   --disable-iwmmxt         disable iwmmxt optimizations
240   --disable-mmi            disable MMI optimizations
241   --disable-neon           disable NEON optimizations
242   --disable-vis            disable VIS optimizations
243   --disable-yasm           disable use of yasm assembler
244   --enable-pic             build position-independent code
245   --malloc-prefix=PFX      prefix malloc and related names with PFX
246   --enable-sram            allow use of on-chip SRAM
247   --disable-symver         disable symbol versioning
248   --optflags               override optimization-related compiler flags
249
250 Developer options (useful when working on Libav itself):
251   --disable-debug          disable debugging symbols
252   --enable-debug=LEVEL     set the debug level [$debuglevel]
253   --disable-optimizations  disable compiler optimizations
254   --enable-extra-warnings  enable more compiler warnings
255   --samples=PATH           location of test samples for FATE, if not set use
256                            \$FATE_SAMPLES at make invocation time.
257
258 NOTE: Object files are built at the place where configure is launched.
259 EOF
260   exit 0
261 }
262
263 quotes='""'
264
265 log(){
266     echo "$@" >> $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 && echo "%define $2"
545 }
546
547 print_config(){
548     pfx=$1
549     files=$2
550     shift 2
551     for cfg; do
552         ucname="$(toupper $cfg)"
553         for f in $files; do
554             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
555         done
556     done
557 }
558
559 print_enabled(){
560     test "$1" = -n && end=" " && shift || end="\n"
561     suf=$1
562     shift
563     for v; do
564         enabled $v && printf "%s$end" ${v%$suf};
565     done
566 }
567
568 append(){
569     var=$1
570     shift
571     eval "$var=\"\$$var $*\""
572 }
573
574 prepend(){
575     var=$1
576     shift
577     eval "$var=\"$* \$$var\""
578 }
579
580 add_cppflags(){
581     append CPPFLAGS $($filter_cppflags "$@")
582 }
583
584 add_cflags(){
585     append CFLAGS $($filter_cflags "$@")
586 }
587
588 add_asflags(){
589     append ASFLAGS $($filter_asflags "$@")
590 }
591
592 add_ldflags(){
593     append LDFLAGS "$@"
594 }
595
596 add_extralibs(){
597     prepend extralibs "$@"
598 }
599
600 check_cmd(){
601     log "$@"
602     "$@" >> $logfile 2>&1
603 }
604
605 check_cc(){
606     log check_cc "$@"
607     cat > $TMPC
608     log_file $TMPC
609     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
610 }
611
612 check_cpp(){
613     log check_cpp "$@"
614     cat > $TMPC
615     log_file $TMPC
616     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
617 }
618
619 check_as(){
620     log check_as "$@"
621     cat > $TMPC
622     log_file $TMPC
623     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
624 }
625
626 check_asm(){
627     log check_asm "$@"
628     name="$1"
629     code="$2"
630     shift 2
631     disable $name
632     check_as "$@" <<EOF && enable $name
633 void foo(void){ __asm__ volatile($code); }
634 EOF
635 }
636
637 check_yasm(){
638     log check_yasm "$@"
639     echo "$1" > $TMPS
640     log_file $TMPS
641     shift 1
642     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
643 }
644
645 check_ld(){
646     log check_ld "$@"
647     flags=''
648     libs=''
649     for f; do
650         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
651     done
652     check_cc $($filter_cflags $flags) || return
653     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
654 }
655
656 check_cppflags(){
657     log check_cppflags "$@"
658     set -- $($filter_cppflags "$@")
659     check_cc "$@" <<EOF && append CPPFLAGS "$@"
660 int x;
661 EOF
662 }
663
664 check_cflags(){
665     log check_cflags "$@"
666     set -- $($filter_cflags "$@")
667     check_cc "$@" <<EOF && append CFLAGS "$@"
668 int x;
669 EOF
670 }
671
672 test_ldflags(){
673     log test_ldflags "$@"
674     check_ld "$@" <<EOF
675 int main(void){ return 0; }
676 EOF
677 }
678
679 check_ldflags(){
680     log check_ldflags "$@"
681     test_ldflags "$@" && add_ldflags "$@"
682 }
683
684 check_header(){
685     log check_header "$@"
686     header=$1
687     shift
688     disable_safe $header
689     check_cpp "$@" <<EOF && enable_safe $header
690 #include <$header>
691 int x;
692 EOF
693 }
694
695 check_func(){
696     log check_func "$@"
697     func=$1
698     shift
699     disable $func
700     check_ld "$@" <<EOF && enable $func
701 extern int $func();
702 int main(void){ $func(); }
703 EOF
704 }
705
706 check_mathfunc(){
707     log check_mathfunc "$@"
708     func=$1
709     shift
710     disable $func
711     check_ld "$@" <<EOF && enable $func
712 #include <math.h>
713 float foo(float f) { return $func(f); }
714 int main(void){ return 0; }
715 EOF
716 }
717
718 check_func_headers(){
719     log check_func_headers "$@"
720     headers=$1
721     funcs=$2
722     shift 2
723     {
724         for hdr in $headers; do
725             echo "#include <$hdr>"
726         done
727         for func in $funcs; do
728             echo "long check_$func(void) { return (long) $func; }"
729         done
730         echo "int main(void) { return 0; }"
731     } | check_ld "$@" && enable $funcs && enable_safe $headers
732 }
733
734 check_cpp_condition(){
735     log check_cpp_condition "$@"
736     header=$1
737     condition=$2
738     shift 2
739     check_cpp $($filter_cppflags "$@") <<EOF
740 #include <$header>
741 #if !($condition)
742 #error "unsatisfied condition: $condition"
743 #endif
744 EOF
745 }
746
747 check_lib(){
748     log check_lib "$@"
749     header="$1"
750     func="$2"
751     shift 2
752     check_header $header && check_func $func "$@" && add_extralibs "$@"
753 }
754
755 check_lib2(){
756     log check_lib2 "$@"
757     headers="$1"
758     funcs="$2"
759     shift 2
760     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
761 }
762
763 check_pkg_config(){
764     log check_pkg_config "$@"
765     pkg="$1"
766     headers="$2"
767     funcs="$3"
768     shift 3
769     $pkg_config --exists $pkg || return
770     pkg_cflags=$($pkg_config --cflags $pkg)
771     pkg_libs=$($pkg_config --libs $pkg)
772     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
773         set_safe ${pkg}_cflags $pkg_cflags   &&
774         set_safe ${pkg}_libs   $pkg_libs
775 }
776
777 check_exec(){
778     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
779 }
780
781 check_exec_crash(){
782     code=$(cat)
783
784     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
785     # are safe but may not be available everywhere.  Thus we use
786     # raise(SIGTERM) instead.  The check is run in a subshell so we
787     # can redirect the "Terminated" message from the shell.  SIGBUS
788     # is not defined by standard C so it is used conditionally.
789
790     (check_exec "$@") >> $logfile 2>&1 <<EOF
791 #include <signal.h>
792 static void sighandler(int sig){
793     raise(SIGTERM);
794 }
795 int main(void){
796     signal(SIGILL, sighandler);
797     signal(SIGFPE, sighandler);
798     signal(SIGSEGV, sighandler);
799 #ifdef SIGBUS
800     signal(SIGBUS, sighandler);
801 #endif
802     { $code }
803 }
804 EOF
805 }
806
807 check_type(){
808     log check_type "$@"
809     headers=$1
810     type=$2
811     shift 2
812     disable_safe "$type"
813     incs=""
814     for hdr in $headers; do
815         incs="$incs
816 #include <$hdr>"
817     done
818     check_cc "$@" <<EOF && enable_safe "$type"
819 $incs
820 $type v;
821 EOF
822 }
823
824 check_struct(){
825     log check_type "$@"
826     headers=$1
827     struct=$2
828     member=$3
829     shift 3
830     disable_safe "${struct}_${member}"
831     incs=""
832     for hdr in $headers; do
833         incs="$incs
834 #include <$hdr>"
835     done
836     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
837 $incs
838 const void *p = &(($struct *)0)->$member;
839 EOF
840 }
841
842 require(){
843     name="$1"
844     header="$2"
845     func="$3"
846     shift 3
847     check_lib $header $func "$@" || die "ERROR: $name not found"
848 }
849
850 require2(){
851     name="$1"
852     headers="$2"
853     func="$3"
854     shift 3
855     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
856 }
857
858 require_pkg_config(){
859     pkg="$1"
860     check_pkg_config "$@" || die "ERROR: $pkg not found"
861     add_cflags    $(get_safe ${pkg}_cflags)
862     add_extralibs $(get_safe ${pkg}_libs)
863 }
864
865 check_host_cc(){
866     log check_host_cc "$@"
867     cat > $TMPC
868     log_file $TMPC
869     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
870 }
871
872 check_host_cflags(){
873     log check_host_cflags "$@"
874     check_host_cc "$@" <<EOF && append host_cflags "$@"
875 int x;
876 EOF
877 }
878
879 apply(){
880     file=$1
881     shift
882     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
883 }
884
885 cp_if_changed(){
886     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
887     mkdir -p "$(dirname $2)"
888     cp -f "$1" "$2"
889 }
890
891 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
892 # system-dependent things.
893
894 COMPONENT_LIST="
895     bsfs
896     decoders
897     demuxers
898     encoders
899     filters
900     hwaccels
901     indevs
902     muxers
903     outdevs
904     parsers
905     protocols
906 "
907
908 PROGRAM_LIST="
909     avconv
910     avplay
911     avprobe
912     avserver
913 "
914
915 CONFIG_LIST="
916     $COMPONENT_LIST
917     $PROGRAM_LIST
918     aandct
919     ac3dsp
920     avcodec
921     avdevice
922     avfilter
923     avformat
924     avisynth
925     bzlib
926     dct
927     doc
928     dwt
929     dxva2
930     fastdiv
931     fft
932     frei0r
933     gnutls
934     golomb
935     gpl
936     gray
937     h264chroma
938     h264dsp
939     h264pred
940     hardcoded_tables
941     huffman
942     libcdio
943     libdc1394
944     libdirac
945     libfaac
946     libfreetype
947     libgsm
948     libmp3lame
949     libnut
950     libopencore_amrnb
951     libopencore_amrwb
952     libopencv
953     libopenjpeg
954     libpulse
955     librtmp
956     libschroedinger
957     libspeex
958     libtheora
959     libvo_aacenc
960     libvo_amrwbenc
961     libvorbis
962     libvpx
963     libx264
964     libxavs
965     libxvid
966     lpc
967     lsp
968     mdct
969     memalign_hack
970     mlib
971     mpegaudiodsp
972     network
973     nonfree
974     openssl
975     pic
976     postproc
977     rdft
978     rtpdec
979     runtime_cpudetect
980     safe_bitstream_reader
981     shared
982     sinewin
983     small
984     sram
985     static
986     swscale
987     swscale_alpha
988     thumb
989     vaapi
990     vda
991     vdpau
992     version3
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 DXVA_PictureParameters_wDecodedPictureIndex"
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 libdirac_encoder_deps="libdirac"
1420 libfaac_encoder_deps="libfaac"
1421 libgsm_decoder_deps="libgsm"
1422 libgsm_encoder_deps="libgsm"
1423 libgsm_ms_decoder_deps="libgsm"
1424 libgsm_ms_encoder_deps="libgsm"
1425 libmp3lame_encoder_deps="libmp3lame"
1426 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1427 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1428 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1429 libopenjpeg_decoder_deps="libopenjpeg"
1430 libschroedinger_decoder_deps="libschroedinger"
1431 libschroedinger_encoder_deps="libschroedinger"
1432 libspeex_decoder_deps="libspeex"
1433 libspeex_encoder_deps="libspeex"
1434 libtheora_encoder_deps="libtheora"
1435 libvo_aacenc_encoder_deps="libvo_aacenc"
1436 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1437 libvorbis_encoder_deps="libvorbis"
1438 libvpx_decoder_deps="libvpx"
1439 libvpx_encoder_deps="libvpx"
1440 libx264_encoder_deps="libx264"
1441 libxavs_encoder_deps="libxavs"
1442 libxvid_encoder_deps="libxvid"
1443
1444 # demuxers / muxers
1445 ac3_demuxer_select="ac3_parser"
1446 asf_stream_muxer_select="asf_muxer"
1447 avisynth_demuxer_deps="avisynth"
1448 dirac_demuxer_select="dirac_parser"
1449 eac3_demuxer_select="ac3_parser"
1450 flac_demuxer_select="flac_parser"
1451 ipod_muxer_select="mov_muxer"
1452 libnut_demuxer_deps="libnut"
1453 libnut_muxer_deps="libnut"
1454 matroska_audio_muxer_select="matroska_muxer"
1455 matroska_demuxer_suggest="zlib bzlib"
1456 mov_demuxer_suggest="zlib"
1457 mp3_demuxer_select="mpegaudio_parser"
1458 mp4_muxer_select="mov_muxer"
1459 mpegtsraw_demuxer_select="mpegts_demuxer"
1460 mxf_d10_muxer_select="mxf_muxer"
1461 ogg_demuxer_select="golomb"
1462 psp_muxer_select="mov_muxer"
1463 rtp_demuxer_select="sdp_demuxer"
1464 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1465 rtsp_demuxer_select="http_protocol rtpdec"
1466 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1467 sap_demuxer_select="sdp_demuxer"
1468 sap_muxer_select="rtp_muxer rtp_protocol"
1469 sdp_demuxer_select="rtpdec"
1470 spdif_muxer_select="aac_parser"
1471 tg2_muxer_select="mov_muxer"
1472 tgp_muxer_select="mov_muxer"
1473 w64_demuxer_deps="wav_demuxer"
1474
1475 # indevs / outdevs
1476 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1477 alsa_outdev_deps="alsa_asoundlib_h"
1478 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1479 dv1394_indev_deps="dv1394 dv_demuxer"
1480 fbdev_indev_deps="linux_fb_h"
1481 jack_indev_deps="jack_jack_h"
1482 libcdio_indev_deps="libcdio"
1483 libdc1394_indev_deps="libdc1394"
1484 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1485 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1486 pulse_indev_deps="libpulse"
1487 sndio_indev_deps="sndio_h"
1488 sndio_outdev_deps="sndio_h"
1489 v4l_indev_deps="linux_videodev_h"
1490 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1491 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1492 vfwcap_indev_extralibs="-lavicap32"
1493 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1494 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1495
1496 # protocols
1497 gopher_protocol_deps="network"
1498 httpproxy_protocol_deps="network"
1499 httpproxy_protocol_select="tcp_protocol"
1500 http_protocol_deps="network"
1501 http_protocol_select="tcp_protocol"
1502 https_protocol_select="tls_protocol"
1503 mmsh_protocol_select="http_protocol"
1504 mmst_protocol_deps="network"
1505 rtmp_protocol_select="tcp_protocol"
1506 rtp_protocol_select="udp_protocol"
1507 tcp_protocol_deps="network"
1508 tls_protocol_deps_any="openssl gnutls"
1509 tls_protocol_select="tcp_protocol"
1510 udp_protocol_deps="network"
1511
1512 # filters
1513 blackframe_filter_deps="gpl"
1514 boxblur_filter_deps="gpl"
1515 cropdetect_filter_deps="gpl"
1516 delogo_filter_deps="gpl"
1517 drawtext_filter_deps="libfreetype"
1518 frei0r_filter_deps="frei0r dlopen strtok_r"
1519 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1520 hqdn3d_filter_deps="gpl"
1521 ocv_filter_deps="libopencv"
1522 scale_filter_deps="swscale"
1523 yadif_filter_deps="gpl"
1524
1525 # libraries
1526 avdevice_deps="avcodec avformat"
1527 avformat_deps="avcodec"
1528 postproc_deps="gpl"
1529
1530 # programs
1531 avconv_deps="avcodec avformat swscale"
1532 avplay_deps="avcodec avformat swscale sdl"
1533 avplay_select="rdft"
1534 avprobe_deps="avcodec avformat"
1535 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1536 avserver_extralibs='$ldl'
1537
1538 doc_deps="texi2html"
1539
1540 # tests
1541
1542 test_deps(){
1543     suf1=$1
1544     suf2=$2
1545     shift 2
1546     for v; do
1547         dep=${v%=*}
1548         tests=${v#*=}
1549         for name in ${tests}; do
1550             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1551         done
1552     done
1553 }
1554
1555 mxf_d10_test_deps="avfilter"
1556 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1557
1558 test_deps _encoder _decoder                                             \
1559     adpcm_ima_qt                                                        \
1560     adpcm_ima_wav                                                       \
1561     adpcm_ms                                                            \
1562     adpcm_swf                                                           \
1563     adpcm_yamaha=adpcm_yam                                              \
1564     alac                                                                \
1565     asv1                                                                \
1566     asv2                                                                \
1567     bmp                                                                 \
1568     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1569     dvvideo="dv dv_411 dv50"                                            \
1570     ffv1                                                                \
1571     flac                                                                \
1572     flashsv                                                             \
1573     flv                                                                 \
1574     adpcm_g726=g726                                                     \
1575     gif                                                                 \
1576     h261                                                                \
1577     h263="h263 h263p"                                                   \
1578     huffyuv                                                             \
1579     jpegls                                                              \
1580     mjpeg="jpg mjpeg ljpeg"                                             \
1581     mp2                                                                 \
1582     mpeg1video="mpeg mpeg1b"                                            \
1583     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1584     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1585     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1586     mpeg4="mpeg4thread error rc"                                        \
1587     msmpeg4v3=msmpeg4                                                   \
1588     msmpeg4v2                                                           \
1589     pbm=pbmpipe                                                         \
1590     pcx                                                                 \
1591     pgm="pgm pgmpipe"                                                   \
1592     png                                                                 \
1593     ppm="ppm ppmpipe"                                                   \
1594     rawvideo="rgb yuv"                                                  \
1595     roq                                                                 \
1596     rv10                                                                \
1597     rv20                                                                \
1598     sgi                                                                 \
1599     snow="snow snowll"                                                  \
1600     svq1                                                                \
1601     targa=tga                                                           \
1602     tiff                                                                \
1603     wmav1                                                               \
1604     wmav2                                                               \
1605     wmv1                                                                \
1606     wmv2                                                                \
1607
1608 test_deps _muxer _demuxer                                               \
1609     aiff                                                                \
1610     pcm_alaw=alaw                                                       \
1611     asf                                                                 \
1612     au                                                                  \
1613     avi                                                                 \
1614     dv=dv_fmt                                                           \
1615     ffm                                                                 \
1616     flv=flv_fmt                                                         \
1617     gxf                                                                 \
1618     matroska=mkv                                                        \
1619     mmf                                                                 \
1620     mov                                                                 \
1621     pcm_mulaw=mulaw                                                     \
1622     mxf="mxf mxf_d10"                                                   \
1623     nut                                                                 \
1624     ogg                                                                 \
1625     rawvideo=pixfmt                                                     \
1626     rm                                                                  \
1627     swf                                                                 \
1628     mpegts=ts                                                           \
1629     voc                                                                 \
1630     wav                                                                 \
1631     yuv4mpegpipe=yuv4mpeg                                               \
1632
1633 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1634 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1635
1636 # default parameters
1637
1638 logfile="config.log"
1639
1640 # installation paths
1641 prefix_default="/usr/local"
1642 bindir_default='${prefix}/bin'
1643 datadir_default='${prefix}/share/avconv'
1644 incdir_default='${prefix}/include'
1645 libdir_default='${prefix}/lib'
1646 mandir_default='${prefix}/share/man'
1647 shlibdir_default="$libdir_default"
1648
1649 # toolchain
1650 ar_default="ar"
1651 cc_default="gcc"
1652 cc_version=\"unknown\"
1653 host_cc_default="gcc"
1654 ln_s="ln -sf"
1655 nm_default="nm"
1656 objformat="elf"
1657 pkg_config_default=pkg-config
1658 ranlib="ranlib"
1659 yasmexe="yasm"
1660
1661 nm_opts='-g'
1662 nogas=":"
1663
1664 # machine
1665 arch_default=$(uname -m)
1666 cpu="generic"
1667
1668 # OS
1669 target_os_default=$(tolower $(uname -s))
1670 host_os=$target_os_default
1671
1672 # configurable options
1673 enable $PROGRAM_LIST
1674
1675 enable avcodec
1676 enable avdevice
1677 enable avfilter
1678 enable avformat
1679 enable avutil
1680 enable swscale
1681
1682 enable asm
1683 enable debug
1684 enable doc
1685 enable fastdiv
1686 enable network
1687 enable optimizations
1688 enable safe_bitstream_reader
1689 enable static
1690 enable swscale_alpha
1691
1692 # build settings
1693 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1694 AVSERVERLDFLAGS=-Wl,-E
1695 LIBPREF="lib"
1696 LIBSUF=".a"
1697 FULLNAME='$(NAME)$(BUILDSUF)'
1698 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1699 SLIBPREF="lib"
1700 SLIBSUF=".so"
1701 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1702 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1703 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1704 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1705 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1706 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1707
1708 AS_O='-o $@'
1709 CC_O='-o $@'
1710
1711 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1712 host_libs='-lm'
1713
1714 target_path='$(CURDIR)'
1715
1716 # since the object filename is not given with the -MM flag, the compiler
1717 # is only able to print the basename, and we must add the path ourselves
1718 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1719 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1720
1721 # find source path
1722 if test -f configure; then
1723     source_path=.
1724 else
1725     source_path=$(cd $(dirname "$0"); pwd)
1726     echo "$source_path" | grep -q '[[:blank:]]' &&
1727         die "Out of tree builds are impossible with whitespace in source path."
1728     test -e "$source_path/config.h" &&
1729         die "Out of tree builds are impossible with config.h in source dir."
1730 fi
1731
1732 for v in "$@"; do
1733     r=${v#*=}
1734     l=${v%"$r"}
1735     r=$(sh_quote "$r")
1736     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1737 done
1738
1739 find_things(){
1740     thing=$1
1741     pattern=$2
1742     file=$source_path/$3
1743     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1744 }
1745
1746 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1747 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1748 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1749 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1750 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1751 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1752 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1753 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1754 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1755 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1756 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1757
1758 ALL_COMPONENTS="
1759     $BSF_LIST
1760     $DECODER_LIST
1761     $DEMUXER_LIST
1762     $ENCODER_LIST
1763     $FILTER_LIST
1764     $HWACCEL_LIST
1765     $INDEV_LIST
1766     $MUXER_LIST
1767     $OUTDEV_LIST
1768     $PARSER_LIST
1769     $PROTOCOL_LIST
1770 "
1771
1772 find_tests(){
1773     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1774 }
1775
1776 ACODEC_TESTS=$(find_tests acodec)
1777 VCODEC_TESTS=$(find_tests vsynth1)
1778 LAVF_TESTS=$(find_tests lavf)
1779 LAVFI_TESTS=$(find_tests lavfi)
1780 SEEK_TESTS=$(find_tests seek seek_)
1781
1782 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1783
1784 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1785
1786 for n in $COMPONENT_LIST; do
1787     v=$(toupper ${n%s})_LIST
1788     eval enable \$$v
1789     eval ${n}_if_any="\$$v"
1790 done
1791
1792 enable $ARCH_EXT_LIST $ALL_TESTS
1793
1794 die_unknown(){
1795     echo "Unknown option \"$1\"."
1796     echo "See $0 --help for available options."
1797     exit 1
1798 }
1799
1800 show_list() {
1801     suffix=_$1
1802     shift
1803     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1804     exit 0
1805 }
1806
1807 for opt do
1808     optval="${opt#*=}"
1809     case "$opt" in
1810     --extra-ldflags=*) add_ldflags $optval
1811     ;;
1812     --extra-libs=*) add_extralibs $optval
1813     ;;
1814     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1815     ;;
1816     --enable-debug=*) debuglevel="$optval"
1817     ;;
1818     --disable-everything)
1819     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1820     ;;
1821     --enable-*=*|--disable-*=*)
1822     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1823     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1824     eval list=\$$(toupper $thing)_LIST
1825     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1826     $action $(filter "$name" $list)
1827     ;;
1828     --enable-?*|--disable-?*)
1829     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1830     if is_in $option $COMPONENT_LIST; then
1831         test $action = disable && action=unset
1832         eval $action \$$(toupper ${option%s})_LIST
1833     elif is_in $option $CMDLINE_SELECT; then
1834         $action $option
1835     else
1836         die_unknown $opt
1837     fi
1838     ;;
1839     --list-*)
1840         NAME="${opt#--list-}"
1841         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1842         NAME=${NAME%s}
1843         eval show_list $NAME \$$(toupper $NAME)_LIST
1844     ;;
1845     --help|-h) show_help
1846     ;;
1847     *)
1848     optname="${opt%%=*}"
1849     optname="${optname#--}"
1850     optname=$(echo "$optname" | sed 's/-/_/g')
1851     if is_in $optname $CMDLINE_SET; then
1852         eval $optname='$optval'
1853     elif is_in $optname $CMDLINE_APPEND; then
1854         append $optname "$optval"
1855     else
1856          die_unknown $opt
1857     fi
1858     ;;
1859     esac
1860 done
1861
1862 disabled logging && logfile=/dev/null
1863
1864 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1865 set >> $logfile
1866
1867 test -n "$cross_prefix" && enable cross_compile
1868
1869 if enabled cross_compile; then
1870     test -n "$arch" && test -n "$target_os" ||
1871         die "Must specify target arch and OS when cross-compiling"
1872 fi
1873
1874 set_default arch target_os
1875
1876 ar_default="${cross_prefix}${ar_default}"
1877 cc_default="${cross_prefix}${cc_default}"
1878 nm_default="${cross_prefix}${nm_default}"
1879 pkg_config_default="${cross_prefix}${pkg_config_default}"
1880 ranlib="${cross_prefix}${ranlib}"
1881
1882 sysinclude_default="${sysroot}/usr/include"
1883
1884 set_default cc nm pkg_config sysinclude
1885 enabled cross_compile || host_cc_default=$cc
1886 set_default host_cc
1887
1888 if ! $pkg_config --version >/dev/null 2>&1; then
1889     warn "$pkg_config not found, library detection may fail."
1890     pkg_config=false
1891 fi
1892
1893 exesuf() {
1894     case $1 in
1895         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1896     esac
1897 }
1898
1899 EXESUF=$(exesuf $target_os)
1900 HOSTEXESUF=$(exesuf $host_os)
1901
1902 # set temporary file name
1903 : ${TMPDIR:=$TEMPDIR}
1904 : ${TMPDIR:=$TMP}
1905 : ${TMPDIR:=/tmp}
1906
1907 if ! check_cmd mktemp -u XXXXXX; then
1908     # simple replacement for missing mktemp
1909     # NOT SAFE FOR GENERAL USE
1910     mktemp(){
1911         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1912     }
1913 fi
1914
1915 tmpfile(){
1916     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1917         (set -C; exec > $tmp) 2>/dev/null ||
1918         die "Unable to create temporary file in $TMPDIR."
1919     append TMPFILES $tmp
1920     eval $1=$tmp
1921 }
1922
1923 trap 'rm -f -- $TMPFILES' EXIT
1924
1925 tmpfile TMPASM .asm
1926 tmpfile TMPC   .c
1927 tmpfile TMPE   $EXESUF
1928 tmpfile TMPH   .h
1929 tmpfile TMPO   .o
1930 tmpfile TMPS   .S
1931 tmpfile TMPSH  .sh
1932 tmpfile TMPV   .ver
1933
1934 unset -f mktemp
1935
1936 chmod +x $TMPE
1937
1938 # make sure we can execute files in $TMPDIR
1939 cat > $TMPSH 2>> $logfile <<EOF
1940 #! /bin/sh
1941 EOF
1942 chmod +x $TMPSH >> $logfile 2>&1
1943 if ! $TMPSH >> $logfile 2>&1; then
1944     cat <<EOF
1945 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1946 variable to another directory and make sure that it is not mounted noexec.
1947 EOF
1948     die "Sanity test failed."
1949 fi
1950
1951 filter_asflags=echo
1952 filter_cflags=echo
1953 filter_cppflags=echo
1954
1955 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1956     cc_type=llvm_gcc
1957     cc_version=__VERSION__
1958     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1959     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1960     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1962     speed_cflags='-O3'
1963     size_cflags='-Os'
1964 elif $cc -v 2>&1 | grep -qi ^gcc; then
1965     cc_type=gcc
1966     cc_version=__VERSION__
1967     gcc_version=$($cc --version | head -n1)
1968     gcc_basever=$($cc -dumpversion)
1969     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1970     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1971     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1972     if ! $cc -dumpversion | grep -q '^2\.'; then
1973         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1974         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1975     fi
1976     speed_cflags='-O3'
1977     size_cflags='-Os'
1978 elif $cc --version 2>/dev/null | grep -q Intel; then
1979     cc_type=icc
1980     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1981     cc_ident=$($cc --version | head -n1)
1982     icc_version=$($cc -dumpversion)
1983     CC_DEPFLAGS='-MMD'
1984     AS_DEPFLAGS='-MMD'
1985     speed_cflags='-O3'
1986     size_cflags='-Os'
1987     noopt_cflags='-O1'
1988 elif $cc -v 2>&1 | grep -q xlc; then
1989     cc_type=xlc
1990     cc_version="AV_STRINGIFY(__IBMC__)"
1991     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1992     speed_cflags='-O5'
1993     size_cflags='-O5 -qcompact'
1994 elif $cc -V 2>/dev/null | grep -q Compaq; then
1995     cc_type=ccc
1996     cc_version="AV_STRINGIFY(__DECC_VER)"
1997     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1998     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1999     debuglevel=3
2000     add_ldflags -Wl,-z,now # calls to libots crash without this
2001     speed_cflags='-fast'
2002     size_cflags='-O1'
2003 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2004     test -d "$sysroot" || die "No valid sysroot specified."
2005     cc_type=armcc
2006     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2007     cc_ident=$($cc --vsn | head -n1)
2008     armcc_conf="$PWD/armcc.conf"
2009     $cc --arm_linux_configure                 \
2010         --arm_linux_config_file="$armcc_conf" \
2011         --configure_sysroot="$sysroot"        \
2012         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2013         die "Error creating armcc configuration file."
2014     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2015     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2016     as_default="${cross_prefix}gcc"
2017     CC_DEPFLAGS='-MMD'
2018     AS_DEPFLAGS='-MMD'
2019     speed_cflags='-O3'
2020     size_cflags='-Os'
2021     filter_asflags="filter_out -W${armcc_opt}*"
2022 elif $cc -version 2>/dev/null | grep -q TMS470; then
2023     cc_type=tms470
2024     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2025     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2026     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2027     CC_O='-fr=$(@D)'
2028     as_default="${cross_prefix}gcc"
2029     ld_default="${cross_prefix}gcc"
2030     TMPO=$(basename $TMPC .c).o
2031     append TMPFILES $TMPO
2032     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2033     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2034     AS_DEPFLAGS='-MMD'
2035     speed_cflags='-O3 -mf=5'
2036     size_cflags='-O3 -mf=2'
2037     filter_cflags=tms470_flags
2038     tms470_flags(){
2039         for flag; do
2040             case $flag in
2041                 -march=*|-mcpu=*)
2042                     case "${flag#*=}" in
2043                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2044                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2045                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2046                         armv6*|arm11*)          echo -mv=6   ;;
2047                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2048                                                 echo -mv=5e  ;;
2049                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2050                     esac
2051                     ;;
2052                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2053                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2054                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2055                 -msoft-float)   echo --float_support=vfplib       ;;
2056                 -O[0-3]|-mf=*)  echo $flag                        ;;
2057                 -g)             echo -g -mn                       ;;
2058                 -pds=*)         echo $flag                        ;;
2059             esac
2060         done
2061     }
2062 elif $cc -v 2>&1 | grep -q clang; then
2063     cc_type=clang
2064     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2065         cc_version=__clang_version__ || cc_version=__VERSION__
2066     cc_ident=$($cc --version | head -n1)
2067     CC_DEPFLAGS='-MMD'
2068     AS_DEPFLAGS='-MMD'
2069     speed_cflags='-O3'
2070     size_cflags='-Os'
2071 elif $cc -V 2>&1 | grep -q Sun; then
2072     cc_type=suncc
2073     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2074     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2075     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2076     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2077     add_ldflags -xc99
2078     speed_cflags='-O5'
2079     size_cflags='-O5 -xspace'
2080     filter_cflags=suncc_flags
2081     suncc_flags(){
2082         for flag; do
2083             case $flag in
2084                 -march=*|-mcpu=*)
2085                     case "${flag#*=}" in
2086                         native)                   echo -xtarget=native       ;;
2087                         v9|niagara)               echo -xarch=sparc          ;;
2088                         ultrasparc)               echo -xarch=sparcvis       ;;
2089                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2090                         i586|pentium)             echo -xchip=pentium        ;;
2091                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2092                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2093                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2094                         pentium4*)          echo -xtarget=pentium4           ;;
2095                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2096                         *-sse3)             echo -xarch=sse3                 ;;
2097                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2098                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2099                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2100                         k8|opteron|athlon64|athlon-fx)
2101                                                   echo -xarch=sse2a          ;;
2102                         athlon*)                  echo -xarch=pentium_proa   ;;
2103                     esac
2104                     ;;
2105                 -std=c99)             echo -xc99              ;;
2106                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2107                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2108                 -W*,*)                echo $flag              ;;
2109                 -f*-*|-W*)                                    ;;
2110                 *)                    echo $flag              ;;
2111             esac
2112         done
2113     }
2114 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2115     cc_type=pathscale
2116     cc_version=__PATHSCALE__
2117     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2118     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2119     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2120     speed_cflags='-O2'
2121     size_cflags='-Os'
2122     filter_cflags='filter_out -Wdisabled-optimization'
2123 elif $cc -v 2>&1 | grep -q Open64; then
2124     cc_type=open64
2125     cc_version=__OPEN64__
2126     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2127     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2128     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     speed_cflags='-O2'
2130     size_cflags='-Os'
2131     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2132 fi
2133
2134 test -n "$cc_type" && enable $cc_type ||
2135     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2136
2137 : ${as_default:=$cc}
2138 : ${dep_cc_default:=$cc}
2139 : ${ld_default:=$cc}
2140 set_default ar as dep_cc ld
2141
2142 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2143 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2144
2145 add_cflags $extra_cflags
2146 add_asflags $extra_cflags
2147
2148 if test -n "$sysroot"; then
2149     case "$cc_type" in
2150         gcc|llvm_gcc|clang)
2151             add_cppflags --sysroot="$sysroot"
2152             add_ldflags --sysroot="$sysroot"
2153         ;;
2154         tms470)
2155             add_cppflags -I"$sysinclude"
2156             add_ldflags  --sysroot="$sysroot"
2157         ;;
2158     esac
2159 fi
2160
2161 if test "$cpu" = host; then
2162     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2163
2164     case "$cc_type" in
2165         gcc|llvm_gcc)
2166             check_native(){
2167                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2168                 sed -n "/cc1.*$1=/{
2169                             s/.*$1=\\([^ ]*\\).*/\\1/
2170                             p
2171                             q
2172                         }" $TMPE
2173             }
2174             cpu=$(check_native -march || check_native -mcpu)
2175         ;;
2176     esac
2177
2178     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2179 fi
2180
2181 # Deal with common $arch aliases
2182 case "$arch" in
2183     arm*)
2184         arch="arm"
2185     ;;
2186     mips|mipsel|IP*)
2187         arch="mips"
2188     ;;
2189     mips64*)
2190         arch="mips"
2191         subarch="mips64"
2192     ;;
2193     parisc|hppa)
2194         arch="parisc"
2195     ;;
2196     parisc64|hppa64)
2197         arch="parisc"
2198         subarch="parisc64"
2199     ;;
2200     "Power Macintosh"|ppc|powerpc)
2201         arch="ppc"
2202     ;;
2203     ppc64|powerpc64)
2204         arch="ppc"
2205         subarch="ppc64"
2206     ;;
2207     s390|s390x)
2208         arch="s390"
2209     ;;
2210     sh4|sh)
2211         arch="sh4"
2212     ;;
2213     sun4u|sparc64)
2214         arch="sparc"
2215         subarch="sparc64"
2216     ;;
2217     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2218         arch="x86"
2219     ;;
2220 esac
2221
2222 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2223 enable $arch
2224
2225 # Add processor-specific flags
2226 if test "$cpu" = generic; then
2227     : do nothing
2228 elif enabled ppc; then
2229
2230     case $(tolower $cpu) in
2231         601|ppc601|powerpc601)
2232             cpuflags="-mcpu=601"
2233             disable altivec
2234         ;;
2235         603*|ppc603*|powerpc603*)
2236             cpuflags="-mcpu=603"
2237             disable altivec
2238         ;;
2239         604*|ppc604*|powerpc604*)
2240             cpuflags="-mcpu=604"
2241             disable altivec
2242         ;;
2243         g3|75*|ppc75*|powerpc75*)
2244             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2245             disable altivec
2246         ;;
2247         g4|745*|ppc745*|powerpc745*)
2248             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2249         ;;
2250         74*|ppc74*|powerpc74*)
2251             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2252         ;;
2253         g5|970|ppc970|powerpc970|power4*)
2254             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2255         ;;
2256         cell)
2257             cpuflags="-mcpu=cell"
2258             enable ldbrx
2259         ;;
2260         e500v2)
2261             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2262             disable altivec
2263         ;;
2264         e500)
2265             cpuflags="-mcpu=8540 -mhard-float"
2266             disable altivec
2267         ;;
2268     esac
2269
2270 elif enabled x86; then
2271
2272     case $cpu in
2273         i[345]86|pentium)
2274             cpuflags="-march=$cpu"
2275             disable mmx
2276         ;;
2277         # targets that do NOT support conditional mov (cmov)
2278         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2279             cpuflags="-march=$cpu"
2280             disable cmov
2281         ;;
2282         # targets that do support conditional mov (cmov)
2283         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2284             cpuflags="-march=$cpu"
2285             enable cmov
2286             enable fast_cmov
2287         ;;
2288         # targets that do support conditional mov but on which it's slow
2289         pentium4|pentium4m|prescott|nocona)
2290             cpuflags="-march=$cpu"
2291             enable cmov
2292             disable fast_cmov
2293         ;;
2294     esac
2295
2296 elif enabled sparc; then
2297
2298     case $cpu in
2299         niagara)
2300             cpuflags="-mcpu=$cpu"
2301             disable vis
2302         ;;
2303         sparc64)
2304             cpuflags="-mcpu=v9"
2305         ;;
2306     esac
2307
2308 elif enabled arm; then
2309
2310     case $cpu in
2311         armv*)
2312             cpuflags="-march=$cpu"
2313             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2314         ;;
2315         *)
2316             cpuflags="-mcpu=$cpu"
2317             case $cpu in
2318                 cortex-a*)                               subarch=armv7a  ;;
2319                 cortex-r*)                               subarch=armv7r  ;;
2320                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2321                 arm11*)                                  subarch=armv6   ;;
2322                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2323                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2324             esac
2325         ;;
2326     esac
2327
2328 elif enabled alpha; then
2329
2330     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2331
2332 elif enabled bfin; then
2333
2334     cpuflags="-mcpu=$cpu"
2335
2336 elif enabled mips; then
2337
2338     cpuflags="-march=$cpu"
2339
2340 elif enabled avr32; then
2341
2342     case $cpu in
2343         ap7[02]0[0-2])
2344             subarch="avr32_ap"
2345             cpuflags="-mpart=$cpu"
2346         ;;
2347         ap)
2348             subarch="avr32_ap"
2349             cpuflags="-march=$cpu"
2350         ;;
2351         uc3[ab]*)
2352             subarch="avr32_uc"
2353             cpuflags="-mcpu=$cpu"
2354         ;;
2355         uc)
2356             subarch="avr32_uc"
2357             cpuflags="-march=$cpu"
2358         ;;
2359     esac
2360
2361 fi
2362
2363 add_cflags $cpuflags
2364 add_asflags $cpuflags
2365
2366 # compiler sanity check
2367 check_exec <<EOF
2368 int main(void){ return 0; }
2369 EOF
2370 if test "$?" != 0; then
2371     echo "$cc is unable to create an executable file."
2372     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2373         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2374         echo "Only do this if you know what cross compiling means."
2375     fi
2376     die "C compiler test failed."
2377 fi
2378
2379 add_cppflags -D_ISOC99_SOURCE
2380 check_cflags -std=c99
2381 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2382 #include <stdlib.h>
2383 EOF
2384 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2385 #include <stdlib.h>
2386 EOF
2387
2388 check_host_cflags -std=c99
2389 check_host_cflags -Wall
2390
2391 case "$arch" in
2392     alpha|ia64|mips|parisc|sparc)
2393         spic=$shared
2394     ;;
2395     x86)
2396         subarch="x86_32"
2397         check_cc <<EOF && subarch="x86_64"
2398         int test[(int)sizeof(char*) - 7];
2399 EOF
2400         if test "$subarch" = "x86_64"; then
2401             spic=$shared
2402         fi
2403     ;;
2404 esac
2405
2406 enable $subarch
2407 enabled spic && enable pic
2408
2409 # OS specific
2410 case $target_os in
2411     haiku)
2412         prefix_default="/boot/common"
2413         network_extralibs="-lnetwork"
2414         host_libs=
2415         ;;
2416     sunos)
2417         AVSERVERLDFLAGS=""
2418         SHFLAGS='-shared -Wl,-h,$$(@F)'
2419         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2420         network_extralibs="-lsocket -lnsl"
2421         add_cppflags -D__EXTENSIONS__
2422         # When using suncc to build, the Solaris linker will mark
2423         # an executable with each instruction set encountered by
2424         # the Solaris assembler.  As our libraries contain their own
2425         # guards for processor-specific code, instead suppress
2426         # generation of the HWCAPS ELF section on Solaris x86 only.
2427         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2428         nm_opts='-P -g'
2429         ;;
2430     netbsd)
2431         disable symver
2432         oss_indev_extralibs="-lossaudio"
2433         oss_outdev_extralibs="-lossaudio"
2434         ;;
2435     openbsd)
2436         enable malloc_aligned
2437         # On OpenBSD 4.5. the compiler does not use PIC unless
2438         # explicitly using -fPIC. Libav builds fine without PIC,
2439         # however the generated executable will not do anything
2440         # (simply quits with exit-code 1, no crash, no output).
2441         # Thus explicitly enable PIC here.
2442         enable pic
2443         disable symver
2444         SHFLAGS='-shared'
2445         oss_indev_extralibs="-lossaudio"
2446         oss_outdev_extralibs="-lossaudio"
2447         ;;
2448     dragonfly)
2449         enable malloc_aligned
2450         disable symver
2451         ;;
2452     freebsd)
2453         enable malloc_aligned
2454         ;;
2455     bsd/os)
2456         add_extralibs -lpoll -lgnugetopt
2457         ;;
2458     darwin)
2459         enable malloc_aligned
2460         gas="gas-preprocessor.pl $cc"
2461         enabled ppc && add_asflags -force_cpusubtype_ALL
2462         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2463         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2464         add_ldflags -Wl,-dynamic,-search_paths_first
2465         SLIBSUF=".dylib"
2466         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2467         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2468         AVSERVERLDFLAGS=-Wl,-bind_at_load
2469         objformat="macho"
2470         enabled x86_64 && objformat="macho64"
2471         enabled_any pic shared ||
2472             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2473         ;;
2474     mingw32*)
2475         if test $target_os = "mingw32ce"; then
2476             disable network
2477         else
2478             target_os=mingw32
2479         fi
2480         LIBTARGET=i386
2481         if enabled x86_64; then
2482             enable malloc_aligned
2483             LIBTARGET="i386:x86-64"
2484         elif enabled arm; then
2485             LIBTARGET=arm-wince
2486         fi
2487         shlibdir_default="$bindir_default"
2488         SLIBPREF=""
2489         SLIBSUF=".dll"
2490         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2491         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2492         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2493         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2494         SLIB_INSTALL_LINKS=
2495         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2496         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2497         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'
2498         objformat="win32"
2499         dlltool="${cross_prefix}dlltool"
2500         enable dos_paths
2501         check_cflags -fno-common
2502         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2503                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2504                 die "ERROR: MinGW runtime version must be >= 3.15."
2505         add_cppflags -U__STRICT_ANSI__
2506         ;;
2507     cygwin*)
2508         target_os=cygwin
2509         shlibdir_default="$bindir_default"
2510         SLIBPREF="cyg"
2511         SLIBSUF=".dll"
2512         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2513         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2514         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2515         objformat="win32"
2516         enable dos_paths
2517         check_cflags -fno-common
2518         add_cppflags -U__STRICT_ANSI__
2519         ;;
2520     *-dos|freedos|opendos)
2521         network_extralibs="-lsocket"
2522         objformat="coff"
2523         enable dos_paths
2524         add_cppflags -U__STRICT_ANSI__
2525         ;;
2526     linux)
2527         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2528         enable dv1394
2529         ;;
2530     irix*)
2531         target_os=irix
2532         ranlib="echo ignoring ranlib"
2533         ;;
2534     os/2*)
2535         ln_s="cp -f"
2536         objformat="aout"
2537         add_cppflags -D_GNU_SOURCE
2538         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2539         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2540         AVSERVERLDFLAGS=""
2541         LIBSUF="_s.a"
2542         SLIBPREF=""
2543         SLIBSUF=".dll"
2544         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2545         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2546         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2547           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2548           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2549           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2550           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2551           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2552         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2553           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2554         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2555         enable dos_paths
2556         ;;
2557     gnu/kfreebsd)
2558         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2559         ;;
2560     gnu)
2561         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2562         ;;
2563     qnx)
2564         add_cppflags -D_QNX_SOURCE
2565         network_extralibs="-lsocket"
2566         ;;
2567     symbian)
2568         SLIBSUF=".dll"
2569         enable dos_paths
2570         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2571         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2572         add_ldflags -Wl,--target1-abs,--no-undefined \
2573                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2574                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2575         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2576                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2577                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2578         ;;
2579     none)
2580         ;;
2581     *)
2582         die "Unknown OS '$target_os'."
2583         ;;
2584 esac
2585
2586 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2587
2588 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2589
2590 set_default $PATHS_LIST
2591
2592 # we need to build at least one lib type
2593 if ! enabled_any static shared; then
2594     cat <<EOF
2595 At least one library type must be built.
2596 Specify --enable-static to build the static libraries or --enable-shared to
2597 build the shared libraries as well. To only build the shared libraries specify
2598 --disable-static in addition to --enable-shared.
2599 EOF
2600     exit 1;
2601 fi
2602
2603 die_license_disabled() {
2604     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2605 }
2606
2607 die_license_disabled gpl libcdio
2608 die_license_disabled gpl libx264
2609 die_license_disabled gpl libxavs
2610 die_license_disabled gpl libxvid
2611 die_license_disabled gpl x11grab
2612
2613 die_license_disabled nonfree libfaac
2614 die_license_disabled nonfree openssl
2615
2616 die_license_disabled version3 libopencore_amrnb
2617 die_license_disabled version3 libopencore_amrwb
2618 die_license_disabled version3 libvo_aacenc
2619 die_license_disabled version3 libvo_amrwbenc
2620
2621 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2622
2623 disabled optimizations || check_cflags -fomit-frame-pointer
2624
2625 enable_pic() {
2626     enable pic
2627     add_cppflags -DPIC
2628     add_cflags   -fPIC
2629     add_asflags  -fPIC
2630 }
2631
2632 enabled pic && enable_pic
2633
2634 check_cc <<EOF || die "Symbol mangling check failed."
2635 int ff_extern;
2636 EOF
2637 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2638 extern_prefix=${sym%%ff_extern*}
2639
2640 check_cc <<EOF && enable inline_asm
2641 void foo(void) { __asm__ volatile ("" ::); }
2642 EOF
2643
2644 _restrict=
2645 for restrict_keyword in restrict __restrict__ __restrict; do
2646     check_cc <<EOF && _restrict=$restrict_keyword && break
2647 void foo(char * $restrict_keyword p);
2648 EOF
2649 done
2650
2651 check_cc <<EOF && enable attribute_packed
2652 struct { int x; } __attribute__((packed)) x;
2653 EOF
2654
2655 check_cc <<EOF && enable attribute_may_alias
2656 union { int x; } __attribute__((may_alias)) x;
2657 EOF
2658
2659 check_cc <<EOF || die "endian test failed"
2660 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2661 EOF
2662 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2663
2664 if enabled alpha; then
2665
2666     check_cflags -mieee
2667
2668 elif enabled arm; then
2669
2670     enabled thumb && check_cflags -mthumb || check_cflags -marm
2671     nogas=die
2672
2673     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2674         enable vfp_args
2675     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2676         case "${cross_prefix:-$cc}" in
2677             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2678             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2679 __asm__ (".eabi_attribute 28, 1");
2680 int main(void) { return 0; }
2681 EOF
2682         esac
2683         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2684     fi
2685
2686     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2687     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2688     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2689     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2690     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2691     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2692     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2693
2694     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2695
2696     enabled_all armv6t2 shared !pic && enable_pic
2697
2698 elif enabled mips; then
2699
2700     check_asm loongson '"dmult.g $1, $2, $3"'
2701     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2702
2703 elif enabled ppc; then
2704
2705     enable local_aligned_8 local_aligned_16
2706
2707     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2708     check_asm ibm_asm   '"add 0, 0, 0"'
2709     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2710     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2711
2712     # AltiVec flags: The FSF version of GCC differs from the Apple version
2713     if enabled altivec; then
2714         nogas=warn
2715         check_cflags -maltivec -mabi=altivec &&
2716         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2717         check_cflags -faltivec
2718
2719         # check if our compiler supports Motorola AltiVec C API
2720         check_cc <<EOF || disable altivec
2721 $inc_altivec_h
2722 int main(void) {
2723     vector signed int v1, v2, v3;
2724     v1 = vec_add(v2,v3);
2725     return 0;
2726 }
2727 EOF
2728
2729         # check if our compiler supports braces for vector declarations
2730         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2731 $inc_altivec_h
2732 int main (void) { (vector int) {1}; return 0; }
2733 EOF
2734     fi
2735
2736 elif enabled sparc; then
2737
2738     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2739         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2740
2741 elif enabled x86; then
2742
2743     enable local_aligned_8 local_aligned_16
2744
2745     # check whether EBP is available on x86
2746     # As 'i' is stored on the stack, this program will crash
2747     # if the base pointer is used to access it because the
2748     # base pointer is cleared in the inline assembly code.
2749     check_exec_crash <<EOF && enable ebp_available
2750     volatile int i=0;
2751     __asm__ volatile (
2752         "xorl %%ebp, %%ebp"
2753     ::: "%ebp");
2754     return i;
2755 EOF
2756
2757     # check whether EBX is available on x86
2758     check_asm ebx_available '""::"b"(0)' &&
2759         check_asm ebx_available '"":::"%ebx"'
2760
2761     # check whether xmm clobbers are supported
2762     check_asm xmm_clobbers '"":::"%xmm0"'
2763
2764     # check whether binutils is new enough to compile SSSE3/MMX2
2765     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2766     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2767
2768     if ! disabled_any asm mmx yasm; then
2769         if check_cmd $yasmexe --version; then
2770             enabled x86_64 && yasm_extra="-m amd64"
2771             yasm_debug="-g dwarf2"
2772         elif check_cmd nasm -v; then
2773             yasmexe=nasm
2774             yasm_debug="-g -F dwarf"
2775             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2776         fi
2777
2778         YASMFLAGS="-f $objformat $yasm_extra"
2779         enabled pic               && append YASMFLAGS "-DPIC"
2780         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2781         case "$objformat" in
2782             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2783         esac
2784
2785         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2786             die "yasm not found, use --disable-yasm for a crippled build"
2787         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2788     fi
2789
2790     case "$cpu" in
2791         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2792             disable fast_clz
2793         ;;
2794     esac
2795
2796 fi
2797
2798 if enabled asm; then
2799     as=${gas:=$as}
2800     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2801         $nogas "GNU assembler not found, install gas-preprocessor"
2802 fi
2803
2804 check_ldflags -Wl,--as-needed
2805
2806 if check_func dlopen; then
2807     ldl=
2808 elif check_func dlopen -ldl; then
2809     ldl=-ldl
2810 fi
2811
2812 if enabled network; then
2813     check_type "sys/types.h sys/socket.h" socklen_t
2814     check_type netdb.h "struct addrinfo"
2815     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2816     check_type netinet/in.h "struct sockaddr_in6"
2817     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2818     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2819     # Prefer arpa/inet.h over winsock2
2820     if check_header arpa/inet.h ; then
2821         check_func closesocket
2822     elif check_header winsock2.h ; then
2823         check_func_headers winsock2.h closesocket -lws2 && \
2824             network_extralibs="-lws2" || \
2825         { check_func_headers winsock2.h closesocket -lws2_32 && \
2826             network_extralibs="-lws2_32"; }
2827         check_type ws2tcpip.h socklen_t
2828         check_type ws2tcpip.h "struct addrinfo"
2829         check_type ws2tcpip.h "struct ipv6_mreq"
2830         check_type ws2tcpip.h "struct sockaddr_in6"
2831         check_type ws2tcpip.h "struct sockaddr_storage"
2832         check_struct winsock2.h "struct sockaddr" sa_len
2833     else
2834         disable network
2835     fi
2836 fi
2837
2838 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2839 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2840
2841 check_func  fcntl
2842 check_func  fork
2843 check_func  getaddrinfo $network_extralibs
2844 check_func  gethrtime
2845 check_func  getrusage
2846 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2847 check_func  inet_aton $network_extralibs
2848 check_func  isatty
2849 check_func  localtime_r
2850 check_func  ${malloc_prefix}memalign            && enable memalign
2851 check_func  mkstemp
2852 check_func  mmap
2853 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2854 check_func  setrlimit
2855 check_func  strerror_r
2856 check_func  strptime
2857 check_func  strtok_r
2858 check_func  sched_getaffinity
2859 check_func  sysconf
2860 check_func  sysctl
2861 check_func_headers io.h setmode
2862 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2863 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2864 check_func_headers windows.h GetProcessAffinityMask
2865 check_func_headers windows.h GetProcessTimes
2866 check_func_headers windows.h MapViewOfFile
2867 check_func_headers windows.h VirtualAlloc
2868
2869 check_header dlfcn.h
2870 check_header dxva2api.h
2871 check_header malloc.h
2872 check_header poll.h
2873 check_header sys/mman.h
2874 check_header sys/param.h
2875 check_header sys/resource.h
2876 check_header sys/select.h
2877 check_header vdpau/vdpau.h
2878 check_header vdpau/vdpau_x11.h
2879 check_header X11/extensions/XvMClib.h
2880
2881 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2882
2883 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2884 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2885
2886 if ! disabled w32threads && ! enabled pthreads; then
2887     check_func _beginthreadex && enable w32threads
2888 fi
2889
2890 # check for some common methods of building with pthread support
2891 # do this before the optional library checks as some of them require pthreads
2892 if ! disabled pthreads && ! enabled w32threads; then
2893     enable pthreads
2894     if check_func pthread_create; then
2895         :
2896     elif check_func pthread_create -pthread; then
2897         add_cflags -pthread
2898         add_extralibs -pthread
2899     elif check_func pthread_create -pthreads; then
2900         add_cflags -pthreads
2901         add_extralibs -pthreads
2902     elif check_func pthread_create -lpthreadGC2; then
2903         add_extralibs -lpthreadGC2
2904     elif ! check_lib pthread.h pthread_create -lpthread; then
2905         disable pthreads
2906     fi
2907 fi
2908
2909 for thread in $THREADS_LIST; do
2910     if enabled $thread; then
2911         test -n "$thread_type" &&
2912             die "ERROR: Only one thread type must be selected." ||
2913             thread_type="$thread"
2914     fi
2915 done
2916
2917 check_lib math.h sin -lm && LIBM="-lm"
2918 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2919
2920 check_mathfunc exp2
2921 check_mathfunc exp2f
2922 check_mathfunc llrint
2923 check_mathfunc llrintf
2924 check_mathfunc log2
2925 check_mathfunc log2f
2926 check_mathfunc lrint
2927 check_mathfunc lrintf
2928 check_mathfunc round
2929 check_mathfunc roundf
2930 check_mathfunc trunc
2931 check_mathfunc truncf
2932
2933 # these are off by default, so fail if requested and not available
2934 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2935 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2936 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2937 enabled libdirac   && require_pkg_config dirac                          \
2938     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2939     "dirac_decoder_init dirac_encoder_init"
2940 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2941 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2942 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2943 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2944 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2945 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2946 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2947 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2948 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2949 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2950 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2951 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2952 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2953 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2954 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2955 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2956 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2957 enabled libvpx     && {
2958     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2959                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2960     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2961                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2962 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2963                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2964                         die "ERROR: libx264 version must be >= 0.118."; }
2965 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2966 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2967 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
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 $sdl_cflags && enable sdl_video_size
2986 fi
2987
2988 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2989
2990 check_header linux/fb.h
2991 check_header linux/videodev.h
2992 check_header linux/videodev2.h
2993 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2994
2995 check_header sys/videoio.h
2996
2997 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2998 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2999 # w32api 3.12 had it defined wrong
3000 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3001
3002 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3003 { check_header dev/bktr/ioctl_meteor.h &&
3004   check_header dev/bktr/ioctl_bt848.h; } ||
3005 { check_header machine/ioctl_meteor.h &&
3006   check_header machine/ioctl_bt848.h; } ||
3007 { check_header dev/video/meteor/ioctl_meteor.h &&
3008   check_header dev/video/bktr/ioctl_bt848.h; } ||
3009 check_header dev/ic/bt8xx.h
3010
3011 check_header sndio.h
3012 check_header sys/soundcard.h
3013 check_header soundcard.h
3014
3015 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3016
3017 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3018
3019 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3020
3021 enabled libcdio &&
3022     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3023
3024 enabled x11grab                         &&
3025 check_header X11/Xlib.h                 &&
3026 check_header X11/extensions/XShm.h      &&
3027 check_header X11/extensions/Xfixes.h    &&
3028 check_func XOpenDisplay -lX11           &&
3029 check_func XShmCreateImage -lX11 -lXext &&
3030 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3031
3032 # check for VDA header
3033 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3034     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3035 fi
3036
3037 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3038 check_cpp_condition \
3039     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3040     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3041       disable vdpau; }
3042 fi
3043
3044 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3045
3046 # add some useful compiler flags if supported
3047 check_cflags -Wdeclaration-after-statement
3048 check_cflags -Wall
3049 check_cflags -Wno-parentheses
3050 check_cflags -Wno-switch
3051 check_cflags -Wno-format-zero-length
3052 check_cflags -Wdisabled-optimization
3053 check_cflags -Wpointer-arith
3054 check_cflags -Wredundant-decls
3055 check_cflags -Wno-pointer-sign
3056 check_cflags -Wcast-qual
3057 check_cflags -Wwrite-strings
3058 check_cflags -Wtype-limits
3059 check_cflags -Wundef
3060 check_cflags -Wmissing-prototypes
3061 check_cflags -Wstrict-prototypes
3062 enabled extra_warnings && check_cflags -Winline
3063
3064 # add some linker flags
3065 check_ldflags -Wl,--warn-common
3066 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3067 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3068
3069 echo "X{};" > $TMPV
3070 if test_ldflags -Wl,--version-script,$TMPV; then
3071     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3072     check_cc <<EOF && enable symver_asm_label
3073 void ff_foo(void) __asm__ ("av_foo@VERSION");
3074 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3075 EOF
3076     check_cc <<EOF && enable symver_gnu_asm
3077 __asm__(".symver ff_foo,av_foo@VERSION");
3078 void ff_foo(void) {}
3079 EOF
3080 fi
3081
3082 if [ -n "$optflags" ]; then
3083     add_cflags $optflags
3084 elif enabled small; then
3085     add_cflags $size_cflags
3086 elif enabled optimizations; then
3087     add_cflags $speed_cflags
3088 else
3089     add_cflags $noopt_cflags
3090 fi
3091 check_cflags -fno-math-errno
3092 check_cflags -fno-signed-zeros
3093
3094 if enabled icc; then
3095     # Just warnings, no remarks
3096     check_cflags -w1
3097     # -wd: Disable following warnings
3098     # 144, 167, 556: -Wno-pointer-sign
3099     # 1292: attribute "foo" ignored
3100     # 10006: ignoring unknown option -fno-signed-zeros
3101     # 10148: ignoring unknown option -Wno-parentheses
3102     # 10156: ignoring option '-W'; no argument required
3103     check_cflags -wd144,167,556,1292,10006,10148,10156
3104     # 11030: Warning unknown option --as-needed
3105     # 10156: ignoring option '-export'; no argument required
3106     check_ldflags -wd10156,11030
3107     # Allow to compile with optimizations
3108     check_ldflags -march=$cpu
3109     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3110     enable ebp_available
3111     if enabled x86_32; then
3112         test ${icc_version%%.*} -ge 11 && \
3113             check_cflags -falign-stack=maintain-16-byte || \
3114             disable aligned_stack
3115     fi
3116 elif enabled ccc; then
3117     # disable some annoying warnings
3118     add_cflags -msg_disable cvtu32to64
3119     add_cflags -msg_disable embedcomment
3120     add_cflags -msg_disable needconstext
3121     add_cflags -msg_disable nomainieee
3122     add_cflags -msg_disable ptrmismatch1
3123     add_cflags -msg_disable unreachcode
3124 elif enabled gcc; then
3125     check_cflags -fno-tree-vectorize
3126     check_cflags -Werror=implicit-function-declaration
3127     check_cflags -Werror=missing-prototypes
3128     check_cflags -Werror=declaration-after-statement
3129 elif enabled llvm_gcc; then
3130     check_cflags -mllvm -stack-alignment=16
3131 elif enabled clang; then
3132     check_cflags -mllvm -stack-alignment=16
3133     check_cflags -Qunused-arguments
3134 elif enabled armcc; then
3135     # 2523: use of inline assembler is deprecated
3136     add_cflags -W${armcc_opt},--diag_suppress=2523
3137     add_cflags -W${armcc_opt},--diag_suppress=1207
3138     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3139     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3140     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3141     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3142 elif enabled tms470; then
3143     add_cflags -pds=824 -pds=837
3144 elif enabled pathscale; then
3145     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3146 fi
3147
3148 enabled_any $THREADS_LIST      && enable threads
3149
3150 check_deps $CONFIG_LIST       \
3151            $CONFIG_EXTRA      \
3152            $HAVE_LIST         \
3153            $ALL_COMPONENTS    \
3154            $ALL_TESTS         \
3155
3156 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3157
3158 ! enabled_any memalign posix_memalign malloc_aligned &&
3159     enabled_any $need_memalign && enable memalign_hack
3160
3161 echo "install prefix            $prefix"
3162 echo "source path               $source_path"
3163 echo "C compiler                $cc"
3164 echo "ARCH                      $arch ($cpu)"
3165 if test "$build_suffix" != ""; then
3166     echo "build suffix              $build_suffix"
3167 fi
3168 if test "$extra_version" != ""; then
3169     echo "version string suffix     $extra_version"
3170 fi
3171 echo "big-endian                ${bigendian-no}"
3172 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3173 if enabled x86; then
3174     echo "${yasmexe}                      ${yasm-no}"
3175     echo "MMX enabled               ${mmx-no}"
3176     echo "MMX2 enabled              ${mmx2-no}"
3177     echo "3DNow! enabled            ${amd3dnow-no}"
3178     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3179     echo "SSE enabled               ${sse-no}"
3180     echo "SSSE3 enabled             ${ssse3-no}"
3181     echo "AVX enabled               ${avx-no}"
3182     echo "CMOV enabled              ${cmov-no}"
3183     echo "CMOV is fast              ${fast_cmov-no}"
3184     echo "EBX available             ${ebx_available-no}"
3185     echo "EBP available             ${ebp_available-no}"
3186 fi
3187 if enabled arm; then
3188     echo "ARMv5TE enabled           ${armv5te-no}"
3189     echo "ARMv6 enabled             ${armv6-no}"
3190     echo "ARMv6T2 enabled           ${armv6t2-no}"
3191     echo "ARM VFP enabled           ${armvfp-no}"
3192     echo "IWMMXT enabled            ${iwmmxt-no}"
3193     echo "NEON enabled              ${neon-no}"
3194 fi
3195 if enabled mips; then
3196     echo "MMI enabled               ${mmi-no}"
3197 fi
3198 if enabled ppc; then
3199     echo "AltiVec enabled           ${altivec-no}"
3200     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3201     echo "dcbzl available           ${dcbzl-no}"
3202 fi
3203 if enabled sparc; then
3204     echo "VIS enabled               ${vis-no}"
3205 fi
3206 echo "debug symbols             ${debug-no}"
3207 echo "optimize for size         ${small-no}"
3208 echo "optimizations             ${optimizations-no}"
3209 echo "static                    ${static-no}"
3210 echo "shared                    ${shared-no}"
3211 echo "postprocessing support    ${postproc-no}"
3212 echo "new filter support        ${avfilter-no}"
3213 echo "network support           ${network-no}"
3214 echo "threading support         ${thread_type-no}"
3215 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3216 echo "SDL support               ${sdl-no}"
3217 echo "Sun medialib support      ${mlib-no}"
3218 echo "libdxva2 enabled          ${dxva2-no}"
3219 echo "libva enabled             ${vaapi-no}"
3220 echo "libvdpau enabled          ${vdpau-no}"
3221 echo "AVISynth enabled          ${avisynth-no}"
3222 echo "frei0r enabled            ${frei0r-no}"
3223 echo "gnutls enabled            ${gnutls-no}"
3224 echo "libcdio support           ${libcdio-no}"
3225 echo "libdc1394 support         ${libdc1394-no}"
3226 echo "libdirac enabled          ${libdirac-no}"
3227 echo "libfaac enabled           ${libfaac-no}"
3228 echo "libgsm enabled            ${libgsm-no}"
3229 echo "libmp3lame enabled        ${libmp3lame-no}"
3230 echo "libnut enabled            ${libnut-no}"
3231 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3232 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3233 echo "libopencv support         ${libopencv-no}"
3234 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3235 echo "libpulse enabled          ${libpulse-no}"
3236 echo "librtmp enabled           ${librtmp-no}"
3237 echo "libschroedinger enabled   ${libschroedinger-no}"
3238 echo "libspeex enabled          ${libspeex-no}"
3239 echo "libtheora enabled         ${libtheora-no}"
3240 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3241 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3242 echo "libvorbis enabled         ${libvorbis-no}"
3243 echo "libvpx enabled            ${libvpx-no}"
3244 echo "libx264 enabled           ${libx264-no}"
3245 echo "libxavs enabled           ${libxavs-no}"
3246 echo "libxvid enabled           ${libxvid-no}"
3247 echo "openssl enabled           ${openssl-no}"
3248 echo "zlib enabled              ${zlib-no}"
3249 echo "bzlib enabled             ${bzlib-no}"
3250 echo
3251
3252 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3253     echo "Enabled ${type}s:"
3254     eval list=\$$(toupper $type)_LIST
3255     print_enabled '_*' $list | sort | pr -r -3 -t
3256     echo
3257 done
3258
3259 license="LGPL version 2.1 or later"
3260 if enabled nonfree; then
3261     license="nonfree and unredistributable"
3262 elif enabled gplv3; then
3263     license="GPL version 3 or later"
3264 elif enabled lgplv3; then
3265     license="LGPL version 3 or later"
3266 elif enabled gpl; then
3267     license="GPL version 2 or later"
3268 fi
3269
3270 echo "License: $license"
3271
3272 echo "Creating config.mak and config.h..."
3273
3274 test -e Makefile || $ln_s "$source_path/Makefile" .
3275
3276 config_files="$TMPH config.mak"
3277
3278 cat > config.mak <<EOF
3279 # Automatically generated by configure - do not modify!
3280 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3281 prefix=$prefix
3282 LIBDIR=\$(DESTDIR)$libdir
3283 SHLIBDIR=\$(DESTDIR)$shlibdir
3284 INCDIR=\$(DESTDIR)$incdir
3285 BINDIR=\$(DESTDIR)$bindir
3286 DATADIR=\$(DESTDIR)$datadir
3287 MANDIR=\$(DESTDIR)$mandir
3288 SRC_PATH=$source_path
3289 CC_IDENT=$cc_ident
3290 ARCH=$arch
3291 CC=$cc
3292 AS=$as
3293 LD=$ld
3294 DEPCC=$dep_cc
3295 YASM=$yasmexe
3296 YASMDEP=$yasmexe
3297 AR=$ar
3298 RANLIB=$ranlib
3299 LN_S=$ln_s
3300 CPPFLAGS=$CPPFLAGS
3301 CFLAGS=$CFLAGS
3302 ASFLAGS=$ASFLAGS
3303 AS_O=$CC_O
3304 CC_O=$CC_O
3305 DLLTOOL=$dlltool
3306 LDFLAGS=$LDFLAGS
3307 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3308 SHFLAGS=$SHFLAGS
3309 YASMFLAGS=$YASMFLAGS
3310 BUILDSUF=$build_suffix
3311 FULLNAME=$FULLNAME
3312 LIBPREF=$LIBPREF
3313 LIBSUF=$LIBSUF
3314 LIBNAME=$LIBNAME
3315 SLIBPREF=$SLIBPREF
3316 SLIBSUF=$SLIBSUF
3317 EXESUF=$EXESUF
3318 EXTRA_VERSION=$extra_version
3319 DEPFLAGS=$DEPFLAGS
3320 CCDEP=$CCDEP
3321 ASDEP=$ASDEP
3322 CC_DEPFLAGS=$CC_DEPFLAGS
3323 AS_DEPFLAGS=$AS_DEPFLAGS
3324 HOSTCC=$host_cc
3325 HOSTCFLAGS=$host_cflags
3326 HOSTEXESUF=$HOSTEXESUF
3327 HOSTLDFLAGS=$host_ldflags
3328 HOSTLIBS=$host_libs
3329 TARGET_EXEC=$target_exec
3330 TARGET_PATH=$target_path
3331 SDL_LIBS=$sdl_libs
3332 SDL_CFLAGS=$sdl_cflags
3333 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3334 EXTRALIBS=$extralibs
3335 INSTALL=install
3336 LIBTARGET=${LIBTARGET}
3337 SLIBNAME=${SLIBNAME}
3338 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3339 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3340 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3341 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3342 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3343 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3344 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3345 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3346 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3347 EOF
3348
3349 get_version(){
3350     name=$1
3351     file=$source_path/$2
3352     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3353     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3354     lcname=$(tolower $name)
3355     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3356     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3357 }
3358
3359 get_version LIBAVCODEC  libavcodec/version.h
3360 get_version LIBAVDEVICE libavdevice/avdevice.h
3361 get_version LIBAVFILTER libavfilter/version.h
3362 get_version LIBAVFORMAT libavformat/version.h
3363 get_version LIBAVUTIL   libavutil/avutil.h
3364 get_version LIBPOSTPROC libpostproc/postprocess.h
3365 get_version LIBSWSCALE  libswscale/swscale.h
3366
3367 cat > $TMPH <<EOF
3368 /* Automatically generated by configure - do not modify! */
3369 #ifndef LIBAV_CONFIG_H
3370 #define LIBAV_CONFIG_H
3371 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3372 #define LIBAV_LICENSE "$(c_escape $license)"
3373 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3374 #define CC_TYPE "$cc_type"
3375 #define CC_VERSION $cc_version
3376 #define restrict $_restrict
3377 #define EXTERN_PREFIX "${extern_prefix}"
3378 #define EXTERN_ASM ${extern_prefix}
3379 #define SLIBSUF "$SLIBSUF"
3380 EOF
3381
3382 test -n "$malloc_prefix" &&
3383     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3384
3385 if enabled small || disabled optimizations; then
3386     echo "#undef  av_always_inline"  >> $TMPH
3387     if enabled small; then
3388         echo "#define av_always_inline inline"  >> $TMPH
3389     else
3390         echo "#define av_always_inline av_unused"  >> $TMPH
3391     fi
3392 fi
3393
3394 if enabled yasm; then
3395     append config_files $TMPASM
3396     printf '' >$TMPASM
3397 fi
3398
3399 print_config ARCH_   "$config_files" $ARCH_LIST
3400 print_config HAVE_   "$config_files" $HAVE_LIST
3401 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3402                                      $CONFIG_EXTRA      \
3403                                      $ALL_COMPONENTS    \
3404
3405 cat >>config.mak <<EOF
3406 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3407 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3408 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3409 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3410 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3411 EOF
3412
3413 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3414
3415 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3416 cp_if_changed $TMPH config.h
3417 touch .config
3418
3419 enabled yasm && cp_if_changed $TMPASM config.asm
3420
3421 cat > $TMPH <<EOF
3422 /* Generated by ffconf */
3423 #ifndef AVUTIL_AVCONFIG_H
3424 #define AVUTIL_AVCONFIG_H
3425 EOF
3426
3427 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3428
3429 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3430
3431 cp_if_changed $TMPH libavutil/avconfig.h
3432
3433 test -n "$WARNINGS" && printf "\n$WARNINGS"
3434
3435 # build pkg-config files
3436
3437 pkgconfig_generate(){
3438 name=$1
3439 shortname=${name#lib}${build_suffix}
3440 comment=$2
3441 version=$3
3442 libs=$4
3443 requires=$5
3444 enabled ${name#lib} || return 0
3445 mkdir -p $name
3446 cat <<EOF > $name/$name.pc
3447 prefix=$prefix
3448 exec_prefix=\${prefix}
3449 libdir=$libdir
3450 includedir=$incdir
3451
3452 Name: $name
3453 Description: $comment
3454 Version: $version
3455 Requires: $(enabled shared || echo $requires)
3456 Requires.private: $(enabled shared && echo $requires)
3457 Conflicts:
3458 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3459 Libs.private: $(enabled shared && echo $libs)
3460 Cflags: -I\${includedir}
3461 EOF
3462 cat <<EOF > $name/$name-uninstalled.pc
3463 prefix=
3464 exec_prefix=
3465 libdir=\${pcfiledir}
3466 includedir=${source_path}
3467
3468 Name: $name
3469 Description: $comment
3470 Version: $version
3471 Requires: $requires
3472 Conflicts:
3473 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3474 Cflags: -I\${includedir}
3475 EOF
3476 }
3477
3478 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3479 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3480 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3481 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3482 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3483 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3484 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"