bink: fix typo in FFALIGN() argument
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-avconv         disable avconv build
84   --disable-avplay         disable avplay build
85   --disable-avprobe        disable avprobe build
86   --disable-avserver       disable avserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-avfilter       disable video filter support [no]
92   --disable-pthreads       disable pthreads [auto]
93   --disable-w32threads     disable Win32 threads [auto]
94   --enable-x11grab         enable X11 grabbing [no]
95   --disable-network        disable network support [no]
96   --enable-gray            enable full grayscale support (slower color)
97   --disable-swscale-alpha  disable alpha channel support in swscale
98   --disable-fastdiv        disable table-based division
99   --enable-small           optimize for size instead of speed
100   --disable-aandct         disable AAN DCT code
101   --disable-dct            disable DCT code
102   --disable-fft            disable FFT code
103   --disable-golomb         disable Golomb code
104   --disable-huffman        disable Huffman code
105   --disable-lpc            disable LPC code
106   --disable-mdct           disable MDCT code
107   --disable-rdft           disable RDFT code
108   --enable-vaapi           enable VAAPI code
109   --enable-vda             enable VDA code
110   --enable-vdpau           enable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --disable-safe-bitstream-reader
115                            disable buffer boundary checking in bitreaders
116                            (faster, but may crash)
117   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
118   --disable-everything     disable all components listed below
119   --disable-encoder=NAME   disable encoder NAME
120   --enable-encoder=NAME    enable encoder NAME
121   --disable-encoders       disable all encoders
122   --disable-decoder=NAME   disable decoder NAME
123   --enable-decoder=NAME    enable decoder NAME
124   --disable-decoders       disable all decoders
125   --disable-hwaccel=NAME   disable hwaccel NAME
126   --enable-hwaccel=NAME    enable hwaccel NAME
127   --disable-hwaccels       disable all hwaccels
128   --disable-muxer=NAME     disable muxer NAME
129   --enable-muxer=NAME      enable muxer NAME
130   --disable-muxers         disable all muxers
131   --disable-demuxer=NAME   disable demuxer NAME
132   --enable-demuxer=NAME    enable demuxer NAME
133   --disable-demuxers       disable all demuxers
134   --enable-parser=NAME     enable parser NAME
135   --disable-parser=NAME    disable parser NAME
136   --disable-parsers        disable all parsers
137   --enable-bsf=NAME        enable bitstream filter NAME
138   --disable-bsf=NAME       disable bitstream filter NAME
139   --disable-bsfs           disable all bitstream filters
140   --enable-protocol=NAME   enable protocol NAME
141   --disable-protocol=NAME  disable protocol NAME
142   --disable-protocols      disable all protocols
143   --disable-indev=NAME     disable input device NAME
144   --disable-outdev=NAME    disable output device NAME
145   --disable-indevs         disable input devices
146   --disable-outdevs        disable output devices
147   --disable-devices        disable all devices
148   --enable-filter=NAME     enable filter NAME
149   --disable-filter=NAME    disable filter NAME
150   --disable-filters        disable all filters
151   --list-decoders          show all available decoders
152   --list-encoders          show all available encoders
153   --list-hwaccels          show all available hardware accelerators
154   --list-muxers            show all available muxers
155   --list-demuxers          show all available demuxers
156   --list-parsers           show all available parsers
157   --list-protocols         show all available protocols
158   --list-bsfs              show all available bitstream filters
159   --list-indevs            show all available input devices
160   --list-outdevs           show all available output devices
161   --list-filters           show all available filters
162
163 External library support:
164   --enable-avisynth        enable reading of AVISynth script files [no]
165   --enable-bzlib           enable bzlib [autodetect]
166   --enable-frei0r          enable frei0r video filtering
167   --enable-gnutls          enable gnutls [no]
168   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
169   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
170   --enable-libopencv       enable video filtering via libopencv [no]
171   --enable-libcdio         enable audio CD grabbing with libcdio
172   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
173                            and libraw1394 [no]
174   --enable-libdirac        enable Dirac support via libdirac [no]
175   --enable-libfaac         enable FAAC support via libfaac [no]
176   --enable-libfreetype     enable libfreetype [no]
177   --enable-libgsm          enable GSM support via libgsm [no]
178   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
179   --enable-libnut          enable NUT (de)muxing via libnut,
180                            native (de)muxer exists [no]
181   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
182   --enable-libpulse        enable Pulseaudio input via libpulse [no]
183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
185   --enable-libspeex        enable Speex support via libspeex [no]
186   --enable-libtheora       enable Theora encoding via libtheora [no]
187   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
188   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
189   --enable-libvorbis       enable Vorbis encoding via libvorbis,
190                            native implementation exists [no]
191   --enable-libvpx          enable VP8 support via libvpx [no]
192   --enable-libx264         enable H.264 encoding via x264 [no]
193   --enable-libxavs         enable AVS encoding via xavs [no]
194   --enable-libxvid         enable Xvid encoding via xvidcore,
195                            native MPEG-4/Xvid encoder exists [no]
196   --enable-openssl         enable openssl [no]
197   --enable-zlib            enable zlib [autodetect]
198
199 Advanced options (experts only):
200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
201   --enable-cross-compile   assume a cross-compiler is used
202   --sysroot=PATH           root of cross-build tree
203   --sysinclude=PATH        location of cross-build system headers
204   --target-os=OS           compiler targets OS [$target_os]
205   --target-exec=CMD        command to run executables on target
206   --target-path=DIR        path to view of build directory on target
207   --nm=NM                  use nm tool
208   --ar=AR                  use archive tool AR [$ar_default]
209   --as=AS                  use assembler AS [$as_default]
210   --cc=CC                  use C compiler CC [$cc_default]
211   --ld=LD                  use linker LD
212   --host-cc=HOSTCC         use host C compiler HOSTCC
213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
215   --host-libs=HLIBS        use libs HLIBS when linking for host
216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --build-suffix=SUFFIX    library name suffix []
221   --arch=ARCH              select architecture [$arch]
222   --cpu=CPU                select the minimum required CPU (affects
223                            instruction selection, may crash on older CPUs)
224   --disable-asm            disable all assembler optimizations
225   --disable-altivec        disable AltiVec optimizations
226   --disable-amd3dnow       disable 3DNow! optimizations
227   --disable-amd3dnowext    disable 3DNow! extended optimizations
228   --disable-mmx            disable MMX optimizations
229   --disable-mmx2           disable MMX2 optimizations
230   --disable-sse            disable SSE optimizations
231   --disable-ssse3          disable SSSE3 optimizations
232   --disable-avx            disable AVX optimizations
233   --disable-armv5te        disable armv5te optimizations
234   --disable-armv6          disable armv6 optimizations
235   --disable-armv6t2        disable armv6t2 optimizations
236   --disable-armvfp         disable ARM VFP optimizations
237   --disable-mmi            disable MMI optimizations
238   --disable-neon           disable NEON optimizations
239   --disable-vis            disable VIS optimizations
240   --disable-yasm           disable use of yasm assembler
241   --enable-pic             build position-independent code
242   --malloc-prefix=PFX      prefix malloc and related names with PFX
243   --enable-sram            allow use of on-chip SRAM
244   --disable-symver         disable symbol versioning
245   --optflags               override optimization-related compiler flags
246
247 Developer options (useful when working on Libav itself):
248   --disable-debug          disable debugging symbols
249   --enable-debug=LEVEL     set the debug level [$debuglevel]
250   --disable-optimizations  disable compiler optimizations
251   --enable-extra-warnings  enable more compiler warnings
252   --samples=PATH           location of test samples for FATE, if not set use
253                            \$FATE_SAMPLES at make invocation time.
254   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
255                            should be used only for debugging purposes)
256
257 NOTE: Object files are built at the place where configure is launched.
258 EOF
259   exit 0
260 }
261
262 quotes='""'
263
264 log(){
265     echo "$@" >> $logfile
266 }
267
268 log_file(){
269     log BEGIN $1
270     pr -n -t $1 >> $logfile
271     log END $1
272 }
273
274 echolog(){
275     log "$@"
276     echo "$@"
277 }
278
279 warn(){
280     log "WARNING: $*"
281     WARNINGS="${WARNINGS}WARNING: $*\n"
282 }
283
284 die(){
285     echolog "$@"
286     cat <<EOF
287
288 If you think configure made a mistake, make sure you are using the latest
289 version from Git.  If the latest version fails, report the problem to the
290 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
291 EOF
292     if disabled logging; then
293         cat <<EOF
294 Rerun configure with logging enabled (do not use --disable-logging), and
295 include the log this produces with your report.
296 EOF
297     else
298 cat <<EOF
299 Include the log file "$logfile" produced by configure as this will help
300 solving the problem.
301 EOF
302     fi
303     exit 1
304 }
305
306 # Avoid locale weirdness, besides we really just want to translate ASCII.
307 toupper(){
308     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
309 }
310
311 tolower(){
312     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
313 }
314
315 c_escape(){
316     echo "$*" | sed 's/["\\]/\\\0/g'
317 }
318
319 sh_quote(){
320     v=$(echo "$1" | sed "s/'/'\\\\''/g")
321     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
322     echo "$v"
323 }
324
325 cleanws(){
326     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
327 }
328
329 filter(){
330     pat=$1
331     shift
332     for v; do
333         eval "case $v in $pat) echo $v ;; esac"
334     done
335 }
336
337 filter_out(){
338     pat=$1
339     shift
340     for v; do
341         eval "case $v in $pat) ;; *) echo $v ;; esac"
342     done
343 }
344
345 map(){
346     m=$1
347     shift
348     for v; do eval $m; done
349 }
350
351 set_all(){
352     value=$1
353     shift
354     for var in $*; do
355         eval $var=$value
356     done
357 }
358
359 set_weak(){
360     value=$1
361     shift
362     for var; do
363         eval : \${$var:=$value}
364     done
365 }
366
367 set_safe(){
368     var=$1
369     shift
370     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
371 }
372
373 get_safe(){
374     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
375 }
376
377 pushvar(){
378     for var in $*; do
379         eval level=\${${var}_level:=0}
380         eval ${var}_${level}="\$$var"
381         eval ${var}_level=$(($level+1))
382     done
383 }
384
385 popvar(){
386     for var in $*; do
387         eval level=\${${var}_level:-0}
388         test $level = 0 && continue
389         eval level=$(($level-1))
390         eval $var="\${${var}_${level}}"
391         eval ${var}_level=$level
392         eval unset ${var}_${level}
393     done
394 }
395
396 enable(){
397     set_all yes $*
398 }
399
400 disable(){
401     set_all no $*
402 }
403
404 enable_weak(){
405     set_weak yes $*
406 }
407
408 disable_weak(){
409     set_weak no $*
410 }
411
412 enable_safe(){
413     for var; do
414         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
415     done
416 }
417
418 disable_safe(){
419     for var; do
420         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
421     done
422 }
423
424 do_enable_deep(){
425     for var; do
426         enabled $var && continue
427         eval sel="\$${var}_select"
428         eval sgs="\$${var}_suggest"
429         pushvar var sgs
430         enable_deep $sel
431         popvar sgs
432         enable_deep_weak $sgs
433         popvar var
434     done
435 }
436
437 enable_deep(){
438     do_enable_deep $*
439     enable $*
440 }
441
442 enable_deep_weak(){
443     do_enable_deep $*
444     enable_weak $*
445 }
446
447 enabled(){
448     test "${1#!}" = "$1" && op== || op=!=
449     eval test "x\$${1#!}" $op "xyes"
450 }
451
452 disabled(){
453     test "${1#!}" = "$1" && op== || op=!=
454     eval test "x\$${1#!}" $op "xno"
455 }
456
457 enabled_all(){
458     for opt; do
459         enabled $opt || return 1
460     done
461 }
462
463 disabled_all(){
464     for opt; do
465         disabled $opt || return 1
466     done
467 }
468
469 enabled_any(){
470     for opt; do
471         enabled $opt && return 0
472     done
473 }
474
475 disabled_any(){
476     for opt; do
477         disabled $opt && return 0
478     done
479     return 1
480 }
481
482 set_default(){
483     for opt; do
484         eval : \${$opt:=\$${opt}_default}
485     done
486 }
487
488 is_in(){
489     value=$1
490     shift
491     for var in $*; do
492         [ $var = $value ] && return 0
493     done
494     return 1
495 }
496
497 check_deps(){
498     for cfg; do
499         cfg="${cfg#!}"
500         enabled ${cfg}_checking && die "Circular dependency for $cfg."
501         disabled ${cfg}_checking && continue
502         enable ${cfg}_checking
503
504         eval dep_all="\$${cfg}_deps"
505         eval dep_any="\$${cfg}_deps_any"
506         eval dep_sel="\$${cfg}_select"
507         eval dep_sgs="\$${cfg}_suggest"
508         eval dep_ifa="\$${cfg}_if"
509         eval dep_ifn="\$${cfg}_if_any"
510
511         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
512         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
513         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
514
515         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
516         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
517         enabled_all  $dep_all || disable $cfg
518         enabled_any  $dep_any || disable $cfg
519         disabled_any $dep_sel && disable $cfg
520
521         if enabled $cfg; then
522             eval dep_extralibs="\$${cfg}_extralibs"
523             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
524             enable_deep $dep_sel
525             enable_deep_weak $dep_sgs
526         fi
527
528         disable ${cfg}_checking
529     done
530 }
531
532 print_config_h(){
533     enabled $1 && v=1 || v=0
534     echo "#define $2 $v"
535 }
536
537 print_config_mak(){
538     enabled $1 && v= || v=!
539     echo "$v$2=yes"
540 }
541
542 print_config_asm(){
543     enabled $1 && v=1 || v=0
544     echo "%define $2 $v"
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     mpegaudiodsp
971     network
972     nonfree
973     openssl
974     pic
975     rdft
976     rtpdec
977     runtime_cpudetect
978     safe_bitstream_reader
979     shared
980     sinewin
981     small
982     sram
983     static
984     swscale
985     swscale_alpha
986     thumb
987     vaapi
988     vda
989     vdpau
990     version3
991     xmm_clobber_test
992     x11grab
993     zlib
994 "
995
996 THREADS_LIST='
997     pthreads
998     w32threads
999 '
1000
1001 ARCH_LIST='
1002     alpha
1003     arm
1004     avr32
1005     avr32_ap
1006     avr32_uc
1007     bfin
1008     ia64
1009     m68k
1010     mips
1011     mips64
1012     parisc
1013     ppc
1014     ppc64
1015     s390
1016     sh4
1017     sparc
1018     sparc64
1019     tomi
1020     x86
1021     x86_32
1022     x86_64
1023 '
1024
1025 ARCH_EXT_LIST='
1026     altivec
1027     amd3dnow
1028     amd3dnowext
1029     armv5te
1030     armv6
1031     armv6t2
1032     armvfp
1033     avx
1034     mmi
1035     mmx
1036     mmx2
1037     neon
1038     ppc4xx
1039     sse
1040     ssse3
1041     vfpv3
1042     vis
1043 '
1044
1045 HAVE_LIST_PUB='
1046     bigendian
1047     fast_unaligned
1048 '
1049
1050 HAVE_LIST="
1051     $ARCH_EXT_LIST
1052     $HAVE_LIST_PUB
1053     $THREADS_LIST
1054     aligned_stack
1055     alsa_asoundlib_h
1056     altivec_h
1057     arpa_inet_h
1058     asm_mod_y
1059     attribute_may_alias
1060     attribute_packed
1061     closesocket
1062     cmov
1063     dcbzl
1064     dev_bktr_ioctl_bt848_h
1065     dev_bktr_ioctl_meteor_h
1066     dev_ic_bt8xx_h
1067     dev_video_bktr_ioctl_bt848_h
1068     dev_video_meteor_ioctl_meteor_h
1069     dlfcn_h
1070     dlopen
1071     dos_paths
1072     ebp_available
1073     ebx_available
1074     exp2
1075     exp2f
1076     fast_64bit
1077     fast_clz
1078     fast_cmov
1079     fcntl
1080     fork
1081     getaddrinfo
1082     gethrtime
1083     GetProcessAffinityMask
1084     GetProcessMemoryInfo
1085     GetProcessTimes
1086     getrusage
1087     gnu_as
1088     ibm_asm
1089     inet_aton
1090     inline_asm
1091     isatty
1092     ldbrx
1093     libdc1394_1
1094     libdc1394_2
1095     llrint
1096     llrintf
1097     local_aligned_16
1098     local_aligned_8
1099     localtime_r
1100     log2
1101     log2f
1102     loongson
1103     lrint
1104     lrintf
1105     lzo1x_999_compress
1106     machine_ioctl_bt848_h
1107     machine_ioctl_meteor_h
1108     malloc_h
1109     MapViewOfFile
1110     memalign
1111     mkstemp
1112     mmap
1113     poll_h
1114     posix_memalign
1115     round
1116     roundf
1117     sched_getaffinity
1118     sdl
1119     sdl_video_size
1120     setmode
1121     setrlimit
1122     sndio_h
1123     socklen_t
1124     soundcard_h
1125     strerror_r
1126     strptime
1127     strtok_r
1128     struct_addrinfo
1129     struct_ipv6_mreq
1130     struct_rusage_ru_maxrss
1131     struct_sockaddr_in6
1132     struct_sockaddr_sa_len
1133     struct_sockaddr_storage
1134     struct_v4l2_frmivalenum_discrete
1135     symver
1136     symver_asm_label
1137     symver_gnu_asm
1138     sysconf
1139     sysctl
1140     sys_mman_h
1141     sys_param_h
1142     sys_resource_h
1143     sys_select_h
1144     sys_soundcard_h
1145     sys_videoio_h
1146     threads
1147     trunc
1148     truncf
1149     vfp_args
1150     VirtualAlloc
1151     winsock2_h
1152     xform_asm
1153     xmm_clobbers
1154     yasm
1155 "
1156
1157 # options emitted with CONFIG_ prefix but not available on command line
1158 CONFIG_EXTRA="
1159     avutil
1160     gplv3
1161     lgplv3
1162 "
1163
1164 CMDLINE_SELECT="
1165     $ARCH_EXT_LIST
1166     $CONFIG_LIST
1167     $THREADS_LIST
1168     asm
1169     cross_compile
1170     debug
1171     extra_warnings
1172     logging
1173     optimizations
1174     symver
1175     yasm
1176 "
1177
1178 PATHS_LIST='
1179     bindir
1180     datadir
1181     incdir
1182     libdir
1183     mandir
1184     prefix
1185     shlibdir
1186 '
1187
1188 CMDLINE_SET="
1189     $PATHS_LIST
1190     ar
1191     arch
1192     as
1193     build_suffix
1194     cc
1195     cpu
1196     cross_prefix
1197     dep_cc
1198     extra_version
1199     host_cc
1200     host_cflags
1201     host_ldflags
1202     host_libs
1203     host_os
1204     ld
1205     logfile
1206     malloc_prefix
1207     nm
1208     optflags
1209     pkg_config
1210     samples
1211     sysinclude
1212     sysroot
1213     target_exec
1214     target_os
1215     target_path
1216 "
1217
1218 CMDLINE_APPEND="
1219     extra_cflags
1220 "
1221
1222 # code dependency declarations
1223
1224 # architecture extensions
1225
1226 armv5te_deps="arm"
1227 armv6_deps="arm"
1228 armv6t2_deps="arm"
1229 armvfp_deps="arm"
1230 neon_deps="arm"
1231 vfpv3_deps="armvfp"
1232
1233 mmi_deps="mips"
1234
1235 altivec_deps="ppc"
1236 ppc4xx_deps="ppc"
1237
1238 vis_deps="sparc"
1239
1240 x86_64_suggest="cmov fast_cmov"
1241 amd3dnow_deps="mmx"
1242 amd3dnowext_deps="amd3dnow"
1243 mmx_deps="x86"
1244 mmx2_deps="mmx"
1245 sse_deps="mmx"
1246 ssse3_deps="sse"
1247 avx_deps="ssse3"
1248
1249 aligned_stack_if_any="ppc x86"
1250 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1251 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1252 fast_unaligned_if_any="armv6 ppc x86"
1253
1254 inline_asm_deps="!tms470"
1255 need_memalign="altivec neon sse"
1256
1257 symver_if_any="symver_asm_label symver_gnu_asm"
1258
1259 # subsystems
1260 dct_select="rdft"
1261 mdct_select="fft"
1262 rdft_select="fft"
1263 mpegaudiodsp_select="dct"
1264
1265 # decoders / encoders / hardware accelerators
1266 aac_decoder_select="mdct sinewin"
1267 aac_encoder_select="mdct sinewin"
1268 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1269 ac3_decoder_select="mdct ac3dsp ac3_parser"
1270 ac3_encoder_select="mdct ac3dsp"
1271 ac3_fixed_encoder_select="mdct ac3dsp"
1272 alac_encoder_select="lpc"
1273 amrnb_decoder_select="lsp"
1274 amrwb_decoder_select="lsp"
1275 atrac1_decoder_select="mdct sinewin"
1276 atrac3_decoder_select="mdct"
1277 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1278 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1279 cavs_decoder_select="golomb"
1280 cook_decoder_select="mdct sinewin"
1281 cscd_decoder_suggest="zlib"
1282 dca_decoder_select="mdct"
1283 dnxhd_encoder_select="aandct"
1284 dxa_decoder_select="zlib"
1285 eac3_decoder_select="ac3_decoder"
1286 eac3_encoder_select="mdct ac3dsp"
1287 eamad_decoder_select="aandct"
1288 eatgq_decoder_select="aandct"
1289 eatqi_decoder_select="aandct"
1290 ffv1_decoder_select="golomb"
1291 flac_decoder_select="golomb"
1292 flac_encoder_select="golomb lpc"
1293 flashsv_decoder_select="zlib"
1294 flashsv_encoder_select="zlib"
1295 flashsv2_decoder_select="zlib"
1296 flv_decoder_select="h263_decoder"
1297 flv_encoder_select="h263_encoder"
1298 fraps_decoder_select="huffman"
1299 h261_encoder_select="aandct"
1300 h263_decoder_select="h263_parser"
1301 h263_encoder_select="aandct"
1302 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1303 h263i_decoder_select="h263_decoder"
1304 h263p_encoder_select="h263_encoder"
1305 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1306 h264_dxva2_hwaccel_deps="dxva2api_h"
1307 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1308 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1309 h264_vda_hwaccel_select="vda h264_decoder"
1310 h264_vdpau_decoder_select="vdpau h264_decoder"
1311 imc_decoder_select="fft mdct sinewin"
1312 jpegls_decoder_select="golomb"
1313 jpegls_encoder_select="golomb"
1314 ljpeg_encoder_select="aandct"
1315 loco_decoder_select="golomb"
1316 mjpeg_encoder_select="aandct"
1317 mlp_decoder_select="mlp_parser"
1318 mp1_decoder_select="mpegaudiodsp"
1319 mp1float_decoder_select="mpegaudiodsp"
1320 mp2_decoder_select="mpegaudiodsp"
1321 mp2float_decoder_select="mpegaudiodsp"
1322 mp3_decoder_select="mpegaudiodsp"
1323 mp3adu_decoder_select="mpegaudiodsp"
1324 mp3adufloat_decoder_select="mpegaudiodsp"
1325 mp3float_decoder_select="mpegaudiodsp"
1326 mp3on4_decoder_select="mpegaudiodsp"
1327 mp3on4float_decoder_select="mpegaudiodsp"
1328 mpc7_decoder_select="mpegaudiodsp"
1329 mpc8_decoder_select="mpegaudiodsp"
1330 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1331 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1332 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1333 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1334 mpeg1video_encoder_select="aandct"
1335 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1336 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1337 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1338 mpeg2video_encoder_select="aandct"
1339 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1340 mpeg4_encoder_select="h263_encoder"
1341 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1342 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1343 msmpeg4v1_decoder_select="h263_decoder"
1344 msmpeg4v1_encoder_select="h263_encoder"
1345 msmpeg4v2_decoder_select="h263_decoder"
1346 msmpeg4v2_encoder_select="h263_encoder"
1347 msmpeg4v3_decoder_select="h263_decoder"
1348 msmpeg4v3_encoder_select="h263_encoder"
1349 nellymoser_decoder_select="mdct sinewin"
1350 nellymoser_encoder_select="mdct sinewin"
1351 png_decoder_select="zlib"
1352 png_encoder_select="zlib"
1353 qcelp_decoder_select="lsp"
1354 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1355 ra_144_encoder_select="lpc"
1356 rv10_decoder_select="h263_decoder"
1357 rv10_encoder_select="h263_encoder"
1358 rv20_decoder_select="h263_decoder"
1359 rv20_encoder_select="h263_encoder"
1360 rv30_decoder_select="golomb h264chroma h264pred"
1361 rv40_decoder_select="golomb h264chroma h264pred"
1362 shorten_decoder_select="golomb"
1363 sipr_decoder_select="lsp"
1364 snow_decoder_select="dwt"
1365 snow_encoder_select="aandct dwt"
1366 svq1_encoder_select="aandct"
1367 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1368 svq3_decoder_suggest="zlib"
1369 theora_decoder_select="vp3_decoder"
1370 tiff_decoder_suggest="zlib"
1371 tiff_encoder_suggest="zlib"
1372 truehd_decoder_select="mlp_decoder"
1373 tscc_decoder_select="zlib"
1374 twinvq_decoder_select="mdct lsp sinewin"
1375 vc1_decoder_select="h263_decoder h264chroma"
1376 vc1_dxva2_hwaccel_deps="dxva2api_h"
1377 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1378 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1379 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1380 vc1image_decoder_select="vc1_decoder"
1381 vorbis_decoder_select="mdct"
1382 vorbis_encoder_select="mdct"
1383 vp6_decoder_select="huffman"
1384 vp6a_decoder_select="vp6_decoder"
1385 vp6f_decoder_select="vp6_decoder"
1386 vp8_decoder_select="h264pred"
1387 wmapro_decoder_select="mdct sinewin"
1388 wmav1_decoder_select="mdct sinewin"
1389 wmav1_encoder_select="mdct sinewin"
1390 wmav2_decoder_select="mdct sinewin"
1391 wmav2_encoder_select="mdct sinewin"
1392 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1393 wmv1_decoder_select="h263_decoder"
1394 wmv1_encoder_select="h263_encoder"
1395 wmv2_decoder_select="h263_decoder"
1396 wmv2_encoder_select="h263_encoder"
1397 wmv3_decoder_select="vc1_decoder"
1398 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1399 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1400 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1401 wmv3image_decoder_select="wmv3_decoder"
1402 zerocodec_decoder_select="zlib"
1403 zlib_decoder_select="zlib"
1404 zlib_encoder_select="zlib"
1405 zmbv_decoder_select="zlib"
1406 zmbv_encoder_select="zlib"
1407
1408 vaapi_deps="va_va_h"
1409 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1410 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1411
1412 # parsers
1413 h264_parser_select="golomb h264chroma h264dsp h264pred"
1414
1415 # external libraries
1416 libdirac_decoder_deps="libdirac !libschroedinger"
1417 libfaac_encoder_deps="libfaac"
1418 libgsm_decoder_deps="libgsm"
1419 libgsm_encoder_deps="libgsm"
1420 libgsm_ms_decoder_deps="libgsm"
1421 libgsm_ms_encoder_deps="libgsm"
1422 libmp3lame_encoder_deps="libmp3lame"
1423 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1424 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1425 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1426 libopenjpeg_decoder_deps="libopenjpeg"
1427 libschroedinger_decoder_deps="libschroedinger"
1428 libschroedinger_encoder_deps="libschroedinger"
1429 libspeex_decoder_deps="libspeex"
1430 libspeex_encoder_deps="libspeex"
1431 libtheora_encoder_deps="libtheora"
1432 libvo_aacenc_encoder_deps="libvo_aacenc"
1433 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1434 libvorbis_encoder_deps="libvorbis"
1435 libvpx_decoder_deps="libvpx"
1436 libvpx_encoder_deps="libvpx"
1437 libx264_encoder_deps="libx264"
1438 libxavs_encoder_deps="libxavs"
1439 libxvid_encoder_deps="libxvid"
1440
1441 # demuxers / muxers
1442 ac3_demuxer_select="ac3_parser"
1443 asf_stream_muxer_select="asf_muxer"
1444 avisynth_demuxer_deps="avisynth"
1445 dirac_demuxer_select="dirac_parser"
1446 eac3_demuxer_select="ac3_parser"
1447 flac_demuxer_select="flac_parser"
1448 ipod_muxer_select="mov_muxer"
1449 libnut_demuxer_deps="libnut"
1450 libnut_muxer_deps="libnut"
1451 matroska_audio_muxer_select="matroska_muxer"
1452 matroska_demuxer_suggest="zlib bzlib"
1453 mov_demuxer_suggest="zlib"
1454 mp3_demuxer_select="mpegaudio_parser"
1455 mp4_muxer_select="mov_muxer"
1456 mpegtsraw_demuxer_select="mpegts_demuxer"
1457 mxf_d10_muxer_select="mxf_muxer"
1458 ogg_demuxer_select="golomb"
1459 psp_muxer_select="mov_muxer"
1460 rtp_demuxer_select="sdp_demuxer"
1461 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1462 rtsp_demuxer_select="http_protocol rtpdec"
1463 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1464 sap_demuxer_select="sdp_demuxer"
1465 sap_muxer_select="rtp_muxer rtp_protocol"
1466 sdp_demuxer_select="rtpdec"
1467 spdif_muxer_select="aac_parser"
1468 tg2_muxer_select="mov_muxer"
1469 tgp_muxer_select="mov_muxer"
1470 w64_demuxer_deps="wav_demuxer"
1471
1472 # indevs / outdevs
1473 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1474 alsa_outdev_deps="alsa_asoundlib_h"
1475 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1476 dv1394_indev_deps="dv1394 dv_demuxer"
1477 fbdev_indev_deps="linux_fb_h"
1478 jack_indev_deps="jack_jack_h"
1479 libcdio_indev_deps="libcdio"
1480 libdc1394_indev_deps="libdc1394"
1481 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1482 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1483 pulse_indev_deps="libpulse"
1484 sndio_indev_deps="sndio_h"
1485 sndio_outdev_deps="sndio_h"
1486 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1487 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1488 vfwcap_indev_extralibs="-lavicap32"
1489 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1490 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1491
1492 # protocols
1493 gopher_protocol_deps="network"
1494 httpproxy_protocol_deps="network"
1495 httpproxy_protocol_select="tcp_protocol"
1496 http_protocol_deps="network"
1497 http_protocol_select="tcp_protocol"
1498 https_protocol_select="tls_protocol"
1499 librtmp_protocol_deps="librtmp"
1500 librtmpe_protocol_deps="librtmp"
1501 librtmps_protocol_deps="librtmp"
1502 librtmpt_protocol_deps="librtmp"
1503 librtmpte_protocol_deps="librtmp"
1504 mmsh_protocol_select="http_protocol"
1505 mmst_protocol_deps="network"
1506 rtmp_protocol_deps="!librtmp_protocol"
1507 rtmp_protocol_select="tcp_protocol"
1508 rtp_protocol_select="udp_protocol"
1509 tcp_protocol_deps="network"
1510 tls_protocol_deps_any="openssl gnutls"
1511 tls_protocol_select="tcp_protocol"
1512 udp_protocol_deps="network"
1513
1514 # filters
1515 blackframe_filter_deps="gpl"
1516 boxblur_filter_deps="gpl"
1517 cropdetect_filter_deps="gpl"
1518 delogo_filter_deps="gpl"
1519 drawtext_filter_deps="libfreetype"
1520 frei0r_filter_deps="frei0r dlopen strtok_r"
1521 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1522 hqdn3d_filter_deps="gpl"
1523 ocv_filter_deps="libopencv"
1524 scale_filter_deps="swscale"
1525 yadif_filter_deps="gpl"
1526
1527 # libraries
1528 avdevice_deps="avcodec avformat"
1529 avformat_deps="avcodec"
1530
1531 # programs
1532 avconv_deps="avcodec avformat swscale"
1533 avplay_deps="avcodec avformat swscale sdl"
1534 avplay_select="rdft"
1535 avprobe_deps="avcodec avformat"
1536 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1537 avserver_extralibs='$ldl'
1538
1539 doc_deps="texi2html"
1540
1541 # tests
1542
1543 test_deps(){
1544     suf1=$1
1545     suf2=$2
1546     shift 2
1547     for v; do
1548         dep=${v%=*}
1549         tests=${v#*=}
1550         for name in ${tests}; do
1551             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1552         done
1553     done
1554 }
1555
1556 mxf_d10_test_deps="avfilter"
1557 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1558
1559 test_deps _encoder _decoder                                             \
1560     adpcm_ima_qt                                                        \
1561     adpcm_ima_wav                                                       \
1562     adpcm_ms                                                            \
1563     adpcm_swf                                                           \
1564     adpcm_yamaha=adpcm_yam                                              \
1565     alac                                                                \
1566     asv1                                                                \
1567     asv2                                                                \
1568     bmp                                                                 \
1569     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1570     dvvideo="dv dv_411 dv50"                                            \
1571     ffv1                                                                \
1572     flac                                                                \
1573     flashsv                                                             \
1574     flv                                                                 \
1575     adpcm_g726=g726                                                     \
1576     gif                                                                 \
1577     h261                                                                \
1578     h263="h263 h263p"                                                   \
1579     huffyuv                                                             \
1580     jpegls                                                              \
1581     mjpeg="jpg mjpeg ljpeg"                                             \
1582     mp2                                                                 \
1583     mpeg1video="mpeg mpeg1b"                                            \
1584     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1585     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1586     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1587     mpeg4="mpeg4thread error rc"                                        \
1588     msmpeg4v3=msmpeg4                                                   \
1589     msmpeg4v2                                                           \
1590     pbm=pbmpipe                                                         \
1591     pcx                                                                 \
1592     pgm="pgm pgmpipe"                                                   \
1593     png                                                                 \
1594     ppm="ppm ppmpipe"                                                   \
1595     rawvideo="rgb yuv"                                                  \
1596     roq                                                                 \
1597     rv10                                                                \
1598     rv20                                                                \
1599     sgi                                                                 \
1600     snow="snow snowll"                                                  \
1601     svq1                                                                \
1602     targa=tga                                                           \
1603     tiff                                                                \
1604     wmav1                                                               \
1605     wmav2                                                               \
1606     wmv1                                                                \
1607     wmv2                                                                \
1608
1609 test_deps _muxer _demuxer                                               \
1610     aiff                                                                \
1611     pcm_alaw=alaw                                                       \
1612     asf                                                                 \
1613     au                                                                  \
1614     avi                                                                 \
1615     dv=dv_fmt                                                           \
1616     ffm                                                                 \
1617     flv=flv_fmt                                                         \
1618     gxf                                                                 \
1619     matroska=mkv                                                        \
1620     mmf                                                                 \
1621     mov                                                                 \
1622     pcm_mulaw=mulaw                                                     \
1623     mxf="mxf mxf_d10"                                                   \
1624     nut                                                                 \
1625     ogg                                                                 \
1626     rawvideo=pixfmt                                                     \
1627     rm                                                                  \
1628     swf                                                                 \
1629     mpegts=ts                                                           \
1630     voc                                                                 \
1631     wav                                                                 \
1632     yuv4mpegpipe=yuv4mpeg                                               \
1633
1634 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1635 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1636
1637 # default parameters
1638
1639 logfile="config.log"
1640
1641 # installation paths
1642 prefix_default="/usr/local"
1643 bindir_default='${prefix}/bin'
1644 datadir_default='${prefix}/share/avconv'
1645 incdir_default='${prefix}/include'
1646 libdir_default='${prefix}/lib'
1647 mandir_default='${prefix}/share/man'
1648 shlibdir_default="$libdir_default"
1649
1650 # toolchain
1651 ar_default="ar"
1652 cc_default="gcc"
1653 cc_version=\"unknown\"
1654 host_cc_default="gcc"
1655 ln_s="ln -sf"
1656 nm_default="nm"
1657 objformat="elf"
1658 pkg_config_default=pkg-config
1659 ranlib="ranlib"
1660 yasmexe="yasm"
1661
1662 nm_opts='-g'
1663 nogas=":"
1664
1665 # machine
1666 arch_default=$(uname -m)
1667 cpu="generic"
1668
1669 # OS
1670 target_os_default=$(tolower $(uname -s))
1671 host_os=$target_os_default
1672
1673 # configurable options
1674 enable $PROGRAM_LIST
1675
1676 enable avcodec
1677 enable avdevice
1678 enable avfilter
1679 enable avformat
1680 enable avutil
1681 enable swscale
1682
1683 enable asm
1684 enable debug
1685 enable doc
1686 enable fastdiv
1687 enable network
1688 enable optimizations
1689 enable safe_bitstream_reader
1690 enable static
1691 enable swscale_alpha
1692
1693 # build settings
1694 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1695 AVSERVERLDFLAGS=-Wl,-E
1696 LIBPREF="lib"
1697 LIBSUF=".a"
1698 FULLNAME='$(NAME)$(BUILDSUF)'
1699 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1700 SLIBPREF="lib"
1701 SLIBSUF=".so"
1702 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1703 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1704 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1705 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1706 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1707 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1708
1709 AS_O='-o $@'
1710 CC_O='-o $@'
1711
1712 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1713 host_libs='-lm'
1714
1715 target_path='$(CURDIR)'
1716
1717 # since the object filename is not given with the -MM flag, the compiler
1718 # is only able to print the basename, and we must add the path ourselves
1719 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1720 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1721
1722 # find source path
1723 if test -f configure; then
1724     source_path=.
1725 else
1726     source_path=$(cd $(dirname "$0"); pwd)
1727     echo "$source_path" | grep -q '[[:blank:]]' &&
1728         die "Out of tree builds are impossible with whitespace in source path."
1729     test -e "$source_path/config.h" &&
1730         die "Out of tree builds are impossible with config.h in source dir."
1731 fi
1732
1733 for v in "$@"; do
1734     r=${v#*=}
1735     l=${v%"$r"}
1736     r=$(sh_quote "$r")
1737     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1738 done
1739
1740 find_things(){
1741     thing=$1
1742     pattern=$2
1743     file=$source_path/$3
1744     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1745 }
1746
1747 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1748 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1749 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1750 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1751 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1752 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1753 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1754 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1755 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1756 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1757 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1758
1759 ALL_COMPONENTS="
1760     $BSF_LIST
1761     $DECODER_LIST
1762     $DEMUXER_LIST
1763     $ENCODER_LIST
1764     $FILTER_LIST
1765     $HWACCEL_LIST
1766     $INDEV_LIST
1767     $MUXER_LIST
1768     $OUTDEV_LIST
1769     $PARSER_LIST
1770     $PROTOCOL_LIST
1771 "
1772
1773 find_tests(){
1774     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1775 }
1776
1777 ACODEC_TESTS=$(find_tests acodec)
1778 VCODEC_TESTS=$(find_tests vsynth1)
1779 LAVF_TESTS=$(find_tests lavf)
1780 LAVFI_TESTS=$(find_tests lavfi)
1781 SEEK_TESTS=$(find_tests seek seek_)
1782
1783 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1784
1785 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1786
1787 for n in $COMPONENT_LIST; do
1788     v=$(toupper ${n%s})_LIST
1789     eval enable \$$v
1790     eval ${n}_if_any="\$$v"
1791 done
1792
1793 enable $ARCH_EXT_LIST $ALL_TESTS
1794
1795 die_unknown(){
1796     echo "Unknown option \"$1\"."
1797     echo "See $0 --help for available options."
1798     exit 1
1799 }
1800
1801 show_list() {
1802     suffix=_$1
1803     shift
1804     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1805     exit 0
1806 }
1807
1808 for opt do
1809     optval="${opt#*=}"
1810     case "$opt" in
1811     --extra-ldflags=*) add_ldflags $optval
1812     ;;
1813     --extra-libs=*) add_extralibs $optval
1814     ;;
1815     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1816     ;;
1817     --enable-debug=*) debuglevel="$optval"
1818     ;;
1819     --disable-everything)
1820     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1821     ;;
1822     --enable-*=*|--disable-*=*)
1823     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1824     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1825     eval list=\$$(toupper $thing)_LIST
1826     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1827     $action $(filter "$name" $list)
1828     ;;
1829     --enable-?*|--disable-?*)
1830     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1831     if is_in $option $COMPONENT_LIST; then
1832         test $action = disable && action=unset
1833         eval $action \$$(toupper ${option%s})_LIST
1834     elif is_in $option $CMDLINE_SELECT; then
1835         $action $option
1836     else
1837         die_unknown $opt
1838     fi
1839     ;;
1840     --list-*)
1841         NAME="${opt#--list-}"
1842         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1843         NAME=${NAME%s}
1844         eval show_list $NAME \$$(toupper $NAME)_LIST
1845     ;;
1846     --help|-h) show_help
1847     ;;
1848     *)
1849     optname="${opt%%=*}"
1850     optname="${optname#--}"
1851     optname=$(echo "$optname" | sed 's/-/_/g')
1852     if is_in $optname $CMDLINE_SET; then
1853         eval $optname='$optval'
1854     elif is_in $optname $CMDLINE_APPEND; then
1855         append $optname "$optval"
1856     else
1857          die_unknown $opt
1858     fi
1859     ;;
1860     esac
1861 done
1862
1863 disabled logging && logfile=/dev/null
1864
1865 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1866 set >> $logfile
1867
1868 test -n "$cross_prefix" && enable cross_compile
1869
1870 if enabled cross_compile; then
1871     test -n "$arch" && test -n "$target_os" ||
1872         die "Must specify target arch and OS when cross-compiling"
1873 fi
1874
1875 set_default arch target_os
1876
1877 ar_default="${cross_prefix}${ar_default}"
1878 cc_default="${cross_prefix}${cc_default}"
1879 nm_default="${cross_prefix}${nm_default}"
1880 pkg_config_default="${cross_prefix}${pkg_config_default}"
1881 ranlib="${cross_prefix}${ranlib}"
1882
1883 sysinclude_default="${sysroot}/usr/include"
1884
1885 set_default cc nm pkg_config sysinclude
1886 enabled cross_compile || host_cc_default=$cc
1887 set_default host_cc
1888
1889 if ! $pkg_config --version >/dev/null 2>&1; then
1890     warn "$pkg_config not found, library detection may fail."
1891     pkg_config=false
1892 fi
1893
1894 exesuf() {
1895     case $1 in
1896         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1897     esac
1898 }
1899
1900 EXESUF=$(exesuf $target_os)
1901 HOSTEXESUF=$(exesuf $host_os)
1902
1903 # set temporary file name
1904 : ${TMPDIR:=$TEMPDIR}
1905 : ${TMPDIR:=$TMP}
1906 : ${TMPDIR:=/tmp}
1907
1908 if ! check_cmd mktemp -u XXXXXX; then
1909     # simple replacement for missing mktemp
1910     # NOT SAFE FOR GENERAL USE
1911     mktemp(){
1912         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1913     }
1914 fi
1915
1916 tmpfile(){
1917     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1918         (set -C; exec > $tmp) 2>/dev/null ||
1919         die "Unable to create temporary file in $TMPDIR."
1920     append TMPFILES $tmp
1921     eval $1=$tmp
1922 }
1923
1924 trap 'rm -f -- $TMPFILES' EXIT
1925
1926 tmpfile TMPASM .asm
1927 tmpfile TMPC   .c
1928 tmpfile TMPE   $EXESUF
1929 tmpfile TMPH   .h
1930 tmpfile TMPO   .o
1931 tmpfile TMPS   .S
1932 tmpfile TMPSH  .sh
1933 tmpfile TMPV   .ver
1934
1935 unset -f mktemp
1936
1937 chmod +x $TMPE
1938
1939 # make sure we can execute files in $TMPDIR
1940 cat > $TMPSH 2>> $logfile <<EOF
1941 #! /bin/sh
1942 EOF
1943 chmod +x $TMPSH >> $logfile 2>&1
1944 if ! $TMPSH >> $logfile 2>&1; then
1945     cat <<EOF
1946 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1947 variable to another directory and make sure that it is not mounted noexec.
1948 EOF
1949     die "Sanity test failed."
1950 fi
1951
1952 filter_asflags=echo
1953 filter_cflags=echo
1954 filter_cppflags=echo
1955
1956 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1957     cc_type=llvm_gcc
1958     cc_version=__VERSION__
1959     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1960     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1961     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1962     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963     speed_cflags='-O3'
1964     size_cflags='-Os'
1965 elif $cc -v 2>&1 | grep -qi ^gcc; then
1966     cc_type=gcc
1967     cc_version=__VERSION__
1968     gcc_version=$($cc --version | head -n1)
1969     gcc_basever=$($cc -dumpversion)
1970     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1971     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1972     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1973     if ! $cc -dumpversion | grep -q '^2\.'; then
1974         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1975         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1976     fi
1977     speed_cflags='-O3'
1978     size_cflags='-Os'
1979 elif $cc --version 2>/dev/null | grep -q Intel; then
1980     cc_type=icc
1981     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1982     cc_ident=$($cc --version | head -n1)
1983     icc_version=$($cc -dumpversion)
1984     CC_DEPFLAGS='-MMD'
1985     AS_DEPFLAGS='-MMD'
1986     speed_cflags='-O3'
1987     size_cflags='-Os'
1988     noopt_cflags='-O1'
1989 elif $cc -v 2>&1 | grep -q xlc; then
1990     cc_type=xlc
1991     cc_version="AV_STRINGIFY(__IBMC__)"
1992     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1993     speed_cflags='-O5'
1994     size_cflags='-O5 -qcompact'
1995 elif $cc -V 2>/dev/null | grep -q Compaq; then
1996     cc_type=ccc
1997     cc_version="AV_STRINGIFY(__DECC_VER)"
1998     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1999     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2000     debuglevel=3
2001     add_ldflags -Wl,-z,now # calls to libots crash without this
2002     speed_cflags='-fast'
2003     size_cflags='-O1'
2004 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2005     test -d "$sysroot" || die "No valid sysroot specified."
2006     cc_type=armcc
2007     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2008     cc_ident=$($cc --vsn | head -n1)
2009     armcc_conf="$PWD/armcc.conf"
2010     $cc --arm_linux_configure                 \
2011         --arm_linux_config_file="$armcc_conf" \
2012         --configure_sysroot="$sysroot"        \
2013         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2014         die "Error creating armcc configuration file."
2015     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2016     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2017     as_default="${cross_prefix}gcc"
2018     CC_DEPFLAGS='-MMD'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3'
2021     size_cflags='-Os'
2022     filter_asflags="filter_out -W${armcc_opt}*"
2023 elif $cc -version 2>/dev/null | grep -q TMS470; then
2024     cc_type=tms470
2025     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2026     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2027     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2028     CC_O='-fr=$(@D)'
2029     as_default="${cross_prefix}gcc"
2030     ld_default="${cross_prefix}gcc"
2031     TMPO=$(basename $TMPC .c).o
2032     append TMPFILES $TMPO
2033     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2034     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2035     AS_DEPFLAGS='-MMD'
2036     speed_cflags='-O3 -mf=5'
2037     size_cflags='-O3 -mf=2'
2038     filter_cflags=tms470_flags
2039     tms470_flags(){
2040         for flag; do
2041             case $flag in
2042                 -march=*|-mcpu=*)
2043                     case "${flag#*=}" in
2044                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2045                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2046                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2047                         armv6*|arm11*)          echo -mv=6   ;;
2048                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2049                                                 echo -mv=5e  ;;
2050                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2051                     esac
2052                     ;;
2053                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2054                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2055                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2056                 -msoft-float)   echo --float_support=vfplib       ;;
2057                 -O[0-3]|-mf=*)  echo $flag                        ;;
2058                 -g)             echo -g -mn                       ;;
2059                 -pds=*)         echo $flag                        ;;
2060             esac
2061         done
2062     }
2063 elif $cc -v 2>&1 | grep -q clang; then
2064     cc_type=clang
2065     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2066         cc_version=__clang_version__ || cc_version=__VERSION__
2067     cc_ident=$($cc --version | head -n1)
2068     CC_DEPFLAGS='-MMD'
2069     AS_DEPFLAGS='-MMD'
2070     speed_cflags='-O3'
2071     size_cflags='-Os'
2072 elif $cc -V 2>&1 | grep -q Sun; then
2073     cc_type=suncc
2074     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2075     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2076     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2077     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2078     add_ldflags -xc99
2079     speed_cflags='-O5'
2080     size_cflags='-O5 -xspace'
2081     filter_cflags=suncc_flags
2082     suncc_flags(){
2083         for flag; do
2084             case $flag in
2085                 -march=*|-mcpu=*)
2086                     case "${flag#*=}" in
2087                         native)                   echo -xtarget=native       ;;
2088                         v9|niagara)               echo -xarch=sparc          ;;
2089                         ultrasparc)               echo -xarch=sparcvis       ;;
2090                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2091                         i586|pentium)             echo -xchip=pentium        ;;
2092                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2093                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2094                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2095                         pentium4*)          echo -xtarget=pentium4           ;;
2096                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2097                         *-sse3)             echo -xarch=sse3                 ;;
2098                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2099                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2100                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2101                         k8|opteron|athlon64|athlon-fx)
2102                                                   echo -xarch=sse2a          ;;
2103                         athlon*)                  echo -xarch=pentium_proa   ;;
2104                     esac
2105                     ;;
2106                 -std=c99)             echo -xc99              ;;
2107                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2108                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2109                 -W*,*)                echo $flag              ;;
2110                 -f*-*|-W*)                                    ;;
2111                 *)                    echo $flag              ;;
2112             esac
2113         done
2114     }
2115 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2116     cc_type=pathscale
2117     cc_version=__PATHSCALE__
2118     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2119     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2120     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2121     speed_cflags='-O2'
2122     size_cflags='-Os'
2123     filter_cflags='filter_out -Wdisabled-optimization'
2124 elif $cc -v 2>&1 | grep -q Open64; then
2125     cc_type=open64
2126     cc_version=__OPEN64__
2127     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2128     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     speed_cflags='-O2'
2131     size_cflags='-Os'
2132     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2133 fi
2134
2135 test -n "$cc_type" && enable $cc_type ||
2136     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2137
2138 : ${as_default:=$cc}
2139 : ${dep_cc_default:=$cc}
2140 : ${ld_default:=$cc}
2141 set_default ar as dep_cc ld
2142
2143 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2144 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2145
2146 add_cflags $extra_cflags
2147 add_asflags $extra_cflags
2148
2149 if test -n "$sysroot"; then
2150     case "$cc_type" in
2151         gcc|llvm_gcc|clang)
2152             add_cppflags --sysroot="$sysroot"
2153             add_ldflags --sysroot="$sysroot"
2154         ;;
2155         tms470)
2156             add_cppflags -I"$sysinclude"
2157             add_ldflags  --sysroot="$sysroot"
2158         ;;
2159     esac
2160 fi
2161
2162 if test "$cpu" = host; then
2163     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2164
2165     case "$cc_type" in
2166         gcc|llvm_gcc)
2167             check_native(){
2168                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2169                 sed -n "/cc1.*$1=/{
2170                             s/.*$1=\\([^ ]*\\).*/\\1/
2171                             p
2172                             q
2173                         }" $TMPE
2174             }
2175             cpu=$(check_native -march || check_native -mcpu)
2176         ;;
2177     esac
2178
2179     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2180 fi
2181
2182 # Deal with common $arch aliases
2183 case "$arch" in
2184     arm*)
2185         arch="arm"
2186     ;;
2187     mips|mipsel|IP*)
2188         arch="mips"
2189     ;;
2190     mips64*)
2191         arch="mips"
2192         subarch="mips64"
2193     ;;
2194     parisc|hppa)
2195         arch="parisc"
2196     ;;
2197     parisc64|hppa64)
2198         arch="parisc"
2199         subarch="parisc64"
2200     ;;
2201     "Power Macintosh"|ppc|powerpc)
2202         arch="ppc"
2203     ;;
2204     ppc64|powerpc64)
2205         arch="ppc"
2206         subarch="ppc64"
2207     ;;
2208     s390|s390x)
2209         arch="s390"
2210     ;;
2211     sh4|sh)
2212         arch="sh4"
2213     ;;
2214     sun4u|sparc64)
2215         arch="sparc"
2216         subarch="sparc64"
2217     ;;
2218     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2219         arch="x86"
2220     ;;
2221 esac
2222
2223 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2224 enable $arch
2225
2226 # Add processor-specific flags
2227 if test "$cpu" = generic; then
2228     : do nothing
2229 elif enabled ppc; then
2230
2231     case $(tolower $cpu) in
2232         601|ppc601|powerpc601)
2233             cpuflags="-mcpu=601"
2234             disable altivec
2235         ;;
2236         603*|ppc603*|powerpc603*)
2237             cpuflags="-mcpu=603"
2238             disable altivec
2239         ;;
2240         604*|ppc604*|powerpc604*)
2241             cpuflags="-mcpu=604"
2242             disable altivec
2243         ;;
2244         g3|75*|ppc75*|powerpc75*)
2245             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2246             disable altivec
2247         ;;
2248         g4|745*|ppc745*|powerpc745*)
2249             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2250         ;;
2251         74*|ppc74*|powerpc74*)
2252             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2253         ;;
2254         g5|970|ppc970|powerpc970|power4*)
2255             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2256         ;;
2257         cell)
2258             cpuflags="-mcpu=cell"
2259             enable ldbrx
2260         ;;
2261         e500v2)
2262             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2263             disable altivec
2264         ;;
2265         e500)
2266             cpuflags="-mcpu=8540 -mhard-float"
2267             disable altivec
2268         ;;
2269     esac
2270
2271 elif enabled x86; then
2272
2273     case $cpu in
2274         i[345]86|pentium)
2275             cpuflags="-march=$cpu"
2276             disable mmx
2277         ;;
2278         # targets that do NOT support conditional mov (cmov)
2279         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2280             cpuflags="-march=$cpu"
2281             disable cmov
2282         ;;
2283         # targets that do support conditional mov (cmov)
2284         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2285             cpuflags="-march=$cpu"
2286             enable cmov
2287             enable fast_cmov
2288         ;;
2289         # targets that do support conditional mov but on which it's slow
2290         pentium4|pentium4m|prescott|nocona)
2291             cpuflags="-march=$cpu"
2292             enable cmov
2293             disable fast_cmov
2294         ;;
2295     esac
2296
2297 elif enabled sparc; then
2298
2299     case $cpu in
2300         niagara)
2301             cpuflags="-mcpu=$cpu"
2302             disable vis
2303         ;;
2304         sparc64)
2305             cpuflags="-mcpu=v9"
2306         ;;
2307     esac
2308
2309 elif enabled arm; then
2310
2311     case $cpu in
2312         armv*)
2313             cpuflags="-march=$cpu"
2314             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2315         ;;
2316         *)
2317             cpuflags="-mcpu=$cpu"
2318             case $cpu in
2319                 cortex-a*)                               subarch=armv7a  ;;
2320                 cortex-r*)                               subarch=armv7r  ;;
2321                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2322                 arm11*)                                  subarch=armv6   ;;
2323                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2324                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2325             esac
2326         ;;
2327     esac
2328
2329 elif enabled alpha; then
2330
2331     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2332
2333 elif enabled bfin; then
2334
2335     cpuflags="-mcpu=$cpu"
2336
2337 elif enabled mips; then
2338
2339     cpuflags="-march=$cpu"
2340
2341 elif enabled avr32; then
2342
2343     case $cpu in
2344         ap7[02]0[0-2])
2345             subarch="avr32_ap"
2346             cpuflags="-mpart=$cpu"
2347         ;;
2348         ap)
2349             subarch="avr32_ap"
2350             cpuflags="-march=$cpu"
2351         ;;
2352         uc3[ab]*)
2353             subarch="avr32_uc"
2354             cpuflags="-mcpu=$cpu"
2355         ;;
2356         uc)
2357             subarch="avr32_uc"
2358             cpuflags="-march=$cpu"
2359         ;;
2360     esac
2361
2362 fi
2363
2364 add_cflags $cpuflags
2365 add_asflags $cpuflags
2366
2367 # compiler sanity check
2368 check_exec <<EOF
2369 int main(void){ return 0; }
2370 EOF
2371 if test "$?" != 0; then
2372     echo "$cc is unable to create an executable file."
2373     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2374         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2375         echo "Only do this if you know what cross compiling means."
2376     fi
2377     die "C compiler test failed."
2378 fi
2379
2380 add_cppflags -D_ISOC99_SOURCE
2381 check_cflags -std=c99
2382 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2383 #include <stdlib.h>
2384 EOF
2385 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2386 #include <stdlib.h>
2387 EOF
2388
2389 check_host_cflags -std=c99
2390 check_host_cflags -Wall
2391
2392 case "$arch" in
2393     alpha|ia64|mips|parisc|sparc)
2394         spic=$shared
2395     ;;
2396     x86)
2397         subarch="x86_32"
2398         check_cc <<EOF && subarch="x86_64"
2399         int test[(int)sizeof(char*) - 7];
2400 EOF
2401         if test "$subarch" = "x86_64"; then
2402             spic=$shared
2403         fi
2404     ;;
2405 esac
2406
2407 enable $subarch
2408 enabled spic && enable pic
2409
2410 # OS specific
2411 case $target_os in
2412     haiku)
2413         prefix_default="/boot/common"
2414         network_extralibs="-lnetwork"
2415         host_libs=
2416         ;;
2417     sunos)
2418         AVSERVERLDFLAGS=""
2419         SHFLAGS='-shared -Wl,-h,$$(@F)'
2420         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2421         network_extralibs="-lsocket -lnsl"
2422         add_cppflags -D__EXTENSIONS__
2423         # When using suncc to build, the Solaris linker will mark
2424         # an executable with each instruction set encountered by
2425         # the Solaris assembler.  As our libraries contain their own
2426         # guards for processor-specific code, instead suppress
2427         # generation of the HWCAPS ELF section on Solaris x86 only.
2428         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2429         nm_opts='-P -g'
2430         ;;
2431     netbsd)
2432         disable symver
2433         oss_indev_extralibs="-lossaudio"
2434         oss_outdev_extralibs="-lossaudio"
2435         ;;
2436     openbsd)
2437         enable malloc_aligned
2438         # On OpenBSD 4.5. the compiler does not use PIC unless
2439         # explicitly using -fPIC. Libav builds fine without PIC,
2440         # however the generated executable will not do anything
2441         # (simply quits with exit-code 1, no crash, no output).
2442         # Thus explicitly enable PIC here.
2443         enable pic
2444         disable symver
2445         SHFLAGS='-shared'
2446         oss_indev_extralibs="-lossaudio"
2447         oss_outdev_extralibs="-lossaudio"
2448         ;;
2449     dragonfly)
2450         enable malloc_aligned
2451         disable symver
2452         ;;
2453     freebsd)
2454         enable malloc_aligned
2455         ;;
2456     bsd/os)
2457         add_extralibs -lpoll -lgnugetopt
2458         ;;
2459     darwin)
2460         enable malloc_aligned
2461         gas="gas-preprocessor.pl $cc"
2462         enabled ppc && add_asflags -force_cpusubtype_ALL
2463         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2464         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2465         add_ldflags -Wl,-dynamic,-search_paths_first
2466         SLIBSUF=".dylib"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2469         AVSERVERLDFLAGS=-Wl,-bind_at_load
2470         objformat="macho"
2471         enabled x86_64 && objformat="macho64"
2472         enabled_any pic shared ||
2473             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2474         ;;
2475     mingw32*)
2476         if test $target_os = "mingw32ce"; then
2477             disable network
2478         else
2479             target_os=mingw32
2480         fi
2481         LIBTARGET=i386
2482         if enabled x86_64; then
2483             enable malloc_aligned
2484             LIBTARGET="i386:x86-64"
2485         elif enabled arm; then
2486             LIBTARGET=arm-wince
2487         fi
2488         shlibdir_default="$bindir_default"
2489         SLIBPREF=""
2490         SLIBSUF=".dll"
2491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2493         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2494         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2495         SLIB_INSTALL_LINKS=
2496         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2497         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2498         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'
2499         objformat="win32"
2500         dlltool="${cross_prefix}dlltool"
2501         enable dos_paths
2502         check_cflags -fno-common
2503         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2504                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2505                 die "ERROR: MinGW runtime version must be >= 3.15."
2506         add_cppflags -U__STRICT_ANSI__
2507         ;;
2508     cygwin*)
2509         target_os=cygwin
2510         shlibdir_default="$bindir_default"
2511         SLIBPREF="cyg"
2512         SLIBSUF=".dll"
2513         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2514         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2515         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2516         objformat="win32"
2517         enable dos_paths
2518         check_cflags -fno-common
2519         add_cppflags -U__STRICT_ANSI__
2520         ;;
2521     *-dos|freedos|opendos)
2522         network_extralibs="-lsocket"
2523         objformat="coff"
2524         enable dos_paths
2525         add_cppflags -U__STRICT_ANSI__
2526         ;;
2527     linux)
2528         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2529         enable dv1394
2530         ;;
2531     irix*)
2532         target_os=irix
2533         ranlib="echo ignoring ranlib"
2534         ;;
2535     os/2*)
2536         ln_s="cp -f"
2537         objformat="aout"
2538         add_cppflags -D_GNU_SOURCE
2539         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2540         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2541         AVSERVERLDFLAGS=""
2542         LIBSUF="_s.a"
2543         SLIBPREF=""
2544         SLIBSUF=".dll"
2545         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2546         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2547         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2548           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2549           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2550           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2551           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2552           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2553         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2554           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2555         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2556         enable dos_paths
2557         ;;
2558     gnu/kfreebsd)
2559         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2560         ;;
2561     gnu)
2562         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2563         ;;
2564     qnx)
2565         add_cppflags -D_QNX_SOURCE
2566         network_extralibs="-lsocket"
2567         ;;
2568     symbian)
2569         SLIBSUF=".dll"
2570         enable dos_paths
2571         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2572         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2573         add_ldflags -Wl,--target1-abs,--no-undefined \
2574                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2575                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2576         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2577                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2578                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2579         ;;
2580     none)
2581         ;;
2582     *)
2583         die "Unknown OS '$target_os'."
2584         ;;
2585 esac
2586
2587 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2588
2589 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2590
2591 set_default $PATHS_LIST
2592
2593 # we need to build at least one lib type
2594 if ! enabled_any static shared; then
2595     cat <<EOF
2596 At least one library type must be built.
2597 Specify --enable-static to build the static libraries or --enable-shared to
2598 build the shared libraries as well. To only build the shared libraries specify
2599 --disable-static in addition to --enable-shared.
2600 EOF
2601     exit 1;
2602 fi
2603
2604 die_license_disabled() {
2605     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2606 }
2607
2608 die_license_disabled gpl libcdio
2609 die_license_disabled gpl libx264
2610 die_license_disabled gpl libxavs
2611 die_license_disabled gpl libxvid
2612 die_license_disabled gpl x11grab
2613
2614 die_license_disabled nonfree libfaac
2615 die_license_disabled nonfree openssl
2616
2617 die_license_disabled version3 libopencore_amrnb
2618 die_license_disabled version3 libopencore_amrwb
2619 die_license_disabled version3 libvo_aacenc
2620 die_license_disabled version3 libvo_amrwbenc
2621
2622 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2623
2624 disabled optimizations || check_cflags -fomit-frame-pointer
2625
2626 enable_pic() {
2627     enable pic
2628     add_cppflags -DPIC
2629     add_cflags   -fPIC
2630     add_asflags  -fPIC
2631 }
2632
2633 enabled pic && enable_pic
2634
2635 check_cc <<EOF || die "Symbol mangling check failed."
2636 int ff_extern;
2637 EOF
2638 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2639 extern_prefix=${sym%%ff_extern*}
2640
2641 check_cc <<EOF && enable inline_asm
2642 void foo(void) { __asm__ volatile ("" ::); }
2643 EOF
2644
2645 _restrict=
2646 for restrict_keyword in restrict __restrict__ __restrict; do
2647     check_cc <<EOF && _restrict=$restrict_keyword && break
2648 void foo(char * $restrict_keyword p);
2649 EOF
2650 done
2651
2652 check_cc <<EOF && enable attribute_packed
2653 struct { int x; } __attribute__((packed)) x;
2654 EOF
2655
2656 check_cc <<EOF && enable attribute_may_alias
2657 union { int x; } __attribute__((may_alias)) x;
2658 EOF
2659
2660 check_cc <<EOF || die "endian test failed"
2661 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2662 EOF
2663 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2664
2665 if enabled alpha; then
2666
2667     check_cflags -mieee
2668
2669 elif enabled arm; then
2670
2671     enabled thumb && check_cflags -mthumb || check_cflags -marm
2672     nogas=die
2673
2674     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2675         enable vfp_args
2676     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2677         case "${cross_prefix:-$cc}" in
2678             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2679             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2680 __asm__ (".eabi_attribute 28, 1");
2681 int main(void) { return 0; }
2682 EOF
2683         esac
2684         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2685     fi
2686
2687     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2688     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2689     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2690     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
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 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2882 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2883
2884 if ! disabled w32threads && ! enabled pthreads; then
2885     check_func _beginthreadex && enable w32threads
2886 fi
2887
2888 # check for some common methods of building with pthread support
2889 # do this before the optional library checks as some of them require pthreads
2890 if ! disabled pthreads && ! enabled w32threads; then
2891     enable pthreads
2892     if check_func pthread_create; then
2893         :
2894     elif check_func pthread_create -pthread; then
2895         add_cflags -pthread
2896         add_extralibs -pthread
2897     elif check_func pthread_create -pthreads; then
2898         add_cflags -pthreads
2899         add_extralibs -pthreads
2900     elif check_func pthread_create -lpthreadGC2; then
2901         add_extralibs -lpthreadGC2
2902     elif ! check_lib pthread.h pthread_create -lpthread; then
2903         disable pthreads
2904     fi
2905 fi
2906
2907 for thread in $THREADS_LIST; do
2908     if enabled $thread; then
2909         test -n "$thread_type" &&
2910             die "ERROR: Only one thread type must be selected." ||
2911             thread_type="$thread"
2912     fi
2913 done
2914
2915 check_lib math.h sin -lm && LIBM="-lm"
2916 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2917
2918 check_mathfunc exp2
2919 check_mathfunc exp2f
2920 check_mathfunc llrint
2921 check_mathfunc llrintf
2922 check_mathfunc log2
2923 check_mathfunc log2f
2924 check_mathfunc lrint
2925 check_mathfunc lrintf
2926 check_mathfunc round
2927 check_mathfunc roundf
2928 check_mathfunc trunc
2929 check_mathfunc truncf
2930
2931 # these are off by default, so fail if requested and not available
2932 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2933 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2934 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2935 enabled libdirac   && require_pkg_config dirac                          \
2936     "libdirac_decoder/dirac_parser.h"  \
2937     "dirac_decoder_init"
2938 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2939 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2940 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2941 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2942 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2943 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2944 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2945 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2946 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2947 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2948 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2949 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2950 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2951 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2952 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2953 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2954 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2955 enabled libvpx     && {
2956     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2957                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2958     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2959                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2960 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2961                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2962                         die "ERROR: libx264 version must be >= 0.118."; }
2963 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2964 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2965 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2966                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2967                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2968                         die "ERROR: openssl not found"; }
2969
2970 # libdc1394 check
2971 if enabled libdc1394; then
2972     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2973         enable libdc1394_2; } ||
2974     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2975         enable libdc1394_1; } ||
2976     die "ERROR: No version of libdc1394 found "
2977 fi
2978
2979 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2980     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2981     enable sdl &&
2982     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2983 fi
2984
2985 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2986
2987 check_header linux/fb.h
2988 check_header linux/videodev2.h
2989 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2990
2991 check_header sys/videoio.h
2992
2993 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2994 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2995 # w32api 3.12 had it defined wrong
2996 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2997
2998 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2999 { check_header dev/bktr/ioctl_meteor.h &&
3000   check_header dev/bktr/ioctl_bt848.h; } ||
3001 { check_header machine/ioctl_meteor.h &&
3002   check_header machine/ioctl_bt848.h; } ||
3003 { check_header dev/video/meteor/ioctl_meteor.h &&
3004   check_header dev/video/bktr/ioctl_bt848.h; } ||
3005 check_header dev/ic/bt8xx.h
3006
3007 check_header sndio.h
3008 check_header sys/soundcard.h
3009 check_header soundcard.h
3010
3011 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3012
3013 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3014
3015 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3016
3017 enabled libcdio &&
3018     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3019
3020 enabled x11grab                         &&
3021 check_header X11/Xlib.h                 &&
3022 check_header X11/extensions/XShm.h      &&
3023 check_header X11/extensions/Xfixes.h    &&
3024 check_func XOpenDisplay -lX11           &&
3025 check_func XShmCreateImage -lX11 -lXext &&
3026 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3027
3028 # check for VDA header
3029 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3030     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3031 fi
3032
3033 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3034 check_cpp_condition \
3035     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3036     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3037       disable vdpau; }
3038 fi
3039
3040 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3041
3042 # add some useful compiler flags if supported
3043 check_cflags -Wdeclaration-after-statement
3044 check_cflags -Wall
3045 check_cflags -Wno-parentheses
3046 check_cflags -Wno-switch
3047 check_cflags -Wno-format-zero-length
3048 check_cflags -Wdisabled-optimization
3049 check_cflags -Wpointer-arith
3050 check_cflags -Wredundant-decls
3051 check_cflags -Wno-pointer-sign
3052 check_cflags -Wcast-qual
3053 check_cflags -Wwrite-strings
3054 check_cflags -Wtype-limits
3055 check_cflags -Wundef
3056 check_cflags -Wmissing-prototypes
3057 check_cflags -Wstrict-prototypes
3058 enabled extra_warnings && check_cflags -Winline
3059
3060 # add some linker flags
3061 check_ldflags -Wl,--warn-common
3062 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3063 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3064
3065 enabled xmm_clobber_test &&                             \
3066     check_ldflags -Wl,--wrap,avcodec_open2              \
3067                   -Wl,--wrap,avcodec_decode_audio4      \
3068                   -Wl,--wrap,avcodec_decode_video2      \
3069                   -Wl,--wrap,avcodec_decode_subtitle2   \
3070                   -Wl,--wrap,avcodec_encode_audio2      \
3071                   -Wl,--wrap,avcodec_encode_video       \
3072                   -Wl,--wrap,avcodec_encode_subtitle    \
3073                   -Wl,--wrap,sws_scale ||               \
3074     disable xmm_clobber_test
3075
3076 echo "X{};" > $TMPV
3077 if test_ldflags -Wl,--version-script,$TMPV; then
3078     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3079     check_cc <<EOF && enable symver_asm_label
3080 void ff_foo(void) __asm__ ("av_foo@VERSION");
3081 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3082 EOF
3083     check_cc <<EOF && enable symver_gnu_asm
3084 __asm__(".symver ff_foo,av_foo@VERSION");
3085 void ff_foo(void) {}
3086 EOF
3087 fi
3088
3089 if [ -n "$optflags" ]; then
3090     add_cflags $optflags
3091 elif enabled small; then
3092     add_cflags $size_cflags
3093 elif enabled optimizations; then
3094     add_cflags $speed_cflags
3095 else
3096     add_cflags $noopt_cflags
3097 fi
3098 check_cflags -fno-math-errno
3099 check_cflags -fno-signed-zeros
3100
3101 if enabled icc; then
3102     # Just warnings, no remarks
3103     check_cflags -w1
3104     # -wd: Disable following warnings
3105     # 144, 167, 556: -Wno-pointer-sign
3106     # 1292: attribute "foo" ignored
3107     # 10006: ignoring unknown option -fno-signed-zeros
3108     # 10148: ignoring unknown option -Wno-parentheses
3109     # 10156: ignoring option '-W'; no argument required
3110     check_cflags -wd144,167,556,1292,10006,10148,10156
3111     # 11030: Warning unknown option --as-needed
3112     # 10156: ignoring option '-export'; no argument required
3113     check_ldflags -wd10156,11030
3114     # Allow to compile with optimizations
3115     check_ldflags -march=$cpu
3116     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3117     enable ebp_available
3118     if enabled x86_32; then
3119         test ${icc_version%%.*} -ge 11 && \
3120             check_cflags -falign-stack=maintain-16-byte || \
3121             disable aligned_stack
3122     fi
3123 elif enabled ccc; then
3124     # disable some annoying warnings
3125     add_cflags -msg_disable cvtu32to64
3126     add_cflags -msg_disable embedcomment
3127     add_cflags -msg_disable needconstext
3128     add_cflags -msg_disable nomainieee
3129     add_cflags -msg_disable ptrmismatch1
3130     add_cflags -msg_disable unreachcode
3131 elif enabled gcc; then
3132     check_cflags -fno-tree-vectorize
3133     check_cflags -Werror=implicit-function-declaration
3134     check_cflags -Werror=missing-prototypes
3135     check_cflags -Werror=declaration-after-statement
3136 elif enabled llvm_gcc; then
3137     check_cflags -mllvm -stack-alignment=16
3138 elif enabled clang; then
3139     check_cflags -mllvm -stack-alignment=16
3140     check_cflags -Qunused-arguments
3141 elif enabled armcc; then
3142     # 2523: use of inline assembler is deprecated
3143     add_cflags -W${armcc_opt},--diag_suppress=2523
3144     add_cflags -W${armcc_opt},--diag_suppress=1207
3145     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3146     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3147     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3148     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3149 elif enabled tms470; then
3150     add_cflags -pds=824 -pds=837
3151 elif enabled pathscale; then
3152     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3153 fi
3154
3155 enabled_any $THREADS_LIST      && enable threads
3156
3157 check_deps $CONFIG_LIST       \
3158            $CONFIG_EXTRA      \
3159            $HAVE_LIST         \
3160            $ALL_COMPONENTS    \
3161            $ALL_TESTS         \
3162
3163 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3164
3165 ! enabled_any memalign posix_memalign malloc_aligned &&
3166     enabled_any $need_memalign && enable memalign_hack
3167
3168 echo "install prefix            $prefix"
3169 echo "source path               $source_path"
3170 echo "C compiler                $cc"
3171 echo "ARCH                      $arch ($cpu)"
3172 if test "$build_suffix" != ""; then
3173     echo "build suffix              $build_suffix"
3174 fi
3175 if test "$extra_version" != ""; then
3176     echo "version string suffix     $extra_version"
3177 fi
3178 echo "big-endian                ${bigendian-no}"
3179 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3180 if enabled x86; then
3181     echo "${yasmexe}                      ${yasm-no}"
3182     echo "MMX enabled               ${mmx-no}"
3183     echo "MMX2 enabled              ${mmx2-no}"
3184     echo "3DNow! enabled            ${amd3dnow-no}"
3185     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3186     echo "SSE enabled               ${sse-no}"
3187     echo "SSSE3 enabled             ${ssse3-no}"
3188     echo "AVX enabled               ${avx-no}"
3189     echo "CMOV enabled              ${cmov-no}"
3190     echo "CMOV is fast              ${fast_cmov-no}"
3191     echo "EBX available             ${ebx_available-no}"
3192     echo "EBP available             ${ebp_available-no}"
3193 fi
3194 if enabled arm; then
3195     echo "ARMv5TE enabled           ${armv5te-no}"
3196     echo "ARMv6 enabled             ${armv6-no}"
3197     echo "ARMv6T2 enabled           ${armv6t2-no}"
3198     echo "ARM VFP enabled           ${armvfp-no}"
3199     echo "NEON enabled              ${neon-no}"
3200 fi
3201 if enabled mips; then
3202     echo "MMI enabled               ${mmi-no}"
3203 fi
3204 if enabled ppc; then
3205     echo "AltiVec enabled           ${altivec-no}"
3206     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3207     echo "dcbzl available           ${dcbzl-no}"
3208 fi
3209 if enabled sparc; then
3210     echo "VIS enabled               ${vis-no}"
3211 fi
3212 echo "debug symbols             ${debug-no}"
3213 echo "optimize for size         ${small-no}"
3214 echo "optimizations             ${optimizations-no}"
3215 echo "static                    ${static-no}"
3216 echo "shared                    ${shared-no}"
3217 echo "new filter support        ${avfilter-no}"
3218 echo "network support           ${network-no}"
3219 echo "threading support         ${thread_type-no}"
3220 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3221 echo "SDL support               ${sdl-no}"
3222 echo "libdxva2 enabled          ${dxva2-no}"
3223 echo "libva enabled             ${vaapi-no}"
3224 echo "libvdpau enabled          ${vdpau-no}"
3225 echo "AVISynth enabled          ${avisynth-no}"
3226 echo "frei0r enabled            ${frei0r-no}"
3227 echo "gnutls enabled            ${gnutls-no}"
3228 echo "libcdio support           ${libcdio-no}"
3229 echo "libdc1394 support         ${libdc1394-no}"
3230 echo "libdirac enabled          ${libdirac-no}"
3231 echo "libfaac enabled           ${libfaac-no}"
3232 echo "libgsm enabled            ${libgsm-no}"
3233 echo "libmp3lame enabled        ${libmp3lame-no}"
3234 echo "libnut enabled            ${libnut-no}"
3235 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3236 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3237 echo "libopencv support         ${libopencv-no}"
3238 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3239 echo "libpulse enabled          ${libpulse-no}"
3240 echo "librtmp enabled           ${librtmp-no}"
3241 echo "libschroedinger enabled   ${libschroedinger-no}"
3242 echo "libspeex enabled          ${libspeex-no}"
3243 echo "libtheora enabled         ${libtheora-no}"
3244 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3245 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3246 echo "libvorbis enabled         ${libvorbis-no}"
3247 echo "libvpx enabled            ${libvpx-no}"
3248 echo "libx264 enabled           ${libx264-no}"
3249 echo "libxavs enabled           ${libxavs-no}"
3250 echo "libxvid enabled           ${libxvid-no}"
3251 echo "openssl enabled           ${openssl-no}"
3252 echo "zlib enabled              ${zlib-no}"
3253 echo "bzlib enabled             ${bzlib-no}"
3254 echo
3255
3256 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3257     echo "Enabled ${type}s:"
3258     eval list=\$$(toupper $type)_LIST
3259     print_enabled '_*' $list | sort | pr -r -3 -t
3260     echo
3261 done
3262
3263 license="LGPL version 2.1 or later"
3264 if enabled nonfree; then
3265     license="nonfree and unredistributable"
3266 elif enabled gplv3; then
3267     license="GPL version 3 or later"
3268 elif enabled lgplv3; then
3269     license="LGPL version 3 or later"
3270 elif enabled gpl; then
3271     license="GPL version 2 or later"
3272 fi
3273
3274 echo "License: $license"
3275
3276 echo "Creating config.mak and config.h..."
3277
3278 test -e Makefile || $ln_s "$source_path/Makefile" .
3279
3280 config_files="$TMPH config.mak"
3281
3282 cat > config.mak <<EOF
3283 # Automatically generated by configure - do not modify!
3284 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3285 prefix=$prefix
3286 LIBDIR=\$(DESTDIR)$libdir
3287 SHLIBDIR=\$(DESTDIR)$shlibdir
3288 INCDIR=\$(DESTDIR)$incdir
3289 BINDIR=\$(DESTDIR)$bindir
3290 DATADIR=\$(DESTDIR)$datadir
3291 MANDIR=\$(DESTDIR)$mandir
3292 SRC_PATH=$source_path
3293 CC_IDENT=$cc_ident
3294 ARCH=$arch
3295 CC=$cc
3296 AS=$as
3297 LD=$ld
3298 DEPCC=$dep_cc
3299 YASM=$yasmexe
3300 YASMDEP=$yasmexe
3301 AR=$ar
3302 RANLIB=$ranlib
3303 LN_S=$ln_s
3304 CPPFLAGS=$CPPFLAGS
3305 CFLAGS=$CFLAGS
3306 ASFLAGS=$ASFLAGS
3307 AS_O=$CC_O
3308 CC_O=$CC_O
3309 DLLTOOL=$dlltool
3310 LDFLAGS=$LDFLAGS
3311 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3312 SHFLAGS=$SHFLAGS
3313 YASMFLAGS=$YASMFLAGS
3314 BUILDSUF=$build_suffix
3315 FULLNAME=$FULLNAME
3316 LIBPREF=$LIBPREF
3317 LIBSUF=$LIBSUF
3318 LIBNAME=$LIBNAME
3319 SLIBPREF=$SLIBPREF
3320 SLIBSUF=$SLIBSUF
3321 EXESUF=$EXESUF
3322 EXTRA_VERSION=$extra_version
3323 DEPFLAGS=$DEPFLAGS
3324 CCDEP=$CCDEP
3325 ASDEP=$ASDEP
3326 CC_DEPFLAGS=$CC_DEPFLAGS
3327 AS_DEPFLAGS=$AS_DEPFLAGS
3328 HOSTCC=$host_cc
3329 HOSTCFLAGS=$host_cflags
3330 HOSTEXESUF=$HOSTEXESUF
3331 HOSTLDFLAGS=$host_ldflags
3332 HOSTLIBS=$host_libs
3333 TARGET_EXEC=$target_exec
3334 TARGET_PATH=$target_path
3335 SDL_LIBS=$sdl_libs
3336 SDL_CFLAGS=$sdl_cflags
3337 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3338 EXTRALIBS=$extralibs
3339 INSTALL=install
3340 LIBTARGET=${LIBTARGET}
3341 SLIBNAME=${SLIBNAME}
3342 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3343 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3344 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3345 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3346 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3347 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3348 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3349 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3350 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3351 EOF
3352
3353 get_version(){
3354     name=$1
3355     file=$source_path/$2
3356     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3357     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3358     lcname=$(tolower $name)
3359     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3360     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3361 }
3362
3363 get_version LIBAVCODEC  libavcodec/version.h
3364 get_version LIBAVDEVICE libavdevice/avdevice.h
3365 get_version LIBAVFILTER libavfilter/version.h
3366 get_version LIBAVFORMAT libavformat/version.h
3367 get_version LIBAVUTIL   libavutil/avutil.h
3368 get_version LIBSWSCALE  libswscale/swscale.h
3369
3370 cat > $TMPH <<EOF
3371 /* Automatically generated by configure - do not modify! */
3372 #ifndef LIBAV_CONFIG_H
3373 #define LIBAV_CONFIG_H
3374 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3375 #define LIBAV_LICENSE "$(c_escape $license)"
3376 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3377 #define CC_TYPE "$cc_type"
3378 #define CC_VERSION $cc_version
3379 #define restrict $_restrict
3380 #define EXTERN_PREFIX "${extern_prefix}"
3381 #define EXTERN_ASM ${extern_prefix}
3382 #define SLIBSUF "$SLIBSUF"
3383 EOF
3384
3385 test -n "$malloc_prefix" &&
3386     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3387
3388 if enabled small || disabled optimizations; then
3389     echo "#undef  av_always_inline"  >> $TMPH
3390     if enabled small; then
3391         echo "#define av_always_inline inline"  >> $TMPH
3392     else
3393         echo "#define av_always_inline av_unused"  >> $TMPH
3394     fi
3395 fi
3396
3397 if enabled yasm; then
3398     append config_files $TMPASM
3399     printf '' >$TMPASM
3400 fi
3401
3402 print_config ARCH_   "$config_files" $ARCH_LIST
3403 print_config HAVE_   "$config_files" $HAVE_LIST
3404 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3405                                      $CONFIG_EXTRA      \
3406                                      $ALL_COMPONENTS    \
3407
3408 cat >>config.mak <<EOF
3409 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3410 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3411 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3412 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3413 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3414 EOF
3415
3416 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3417
3418 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3419 cp_if_changed $TMPH config.h
3420 touch .config
3421
3422 enabled yasm && cp_if_changed $TMPASM config.asm
3423
3424 cat > $TMPH <<EOF
3425 /* Generated by ffconf */
3426 #ifndef AVUTIL_AVCONFIG_H
3427 #define AVUTIL_AVCONFIG_H
3428 EOF
3429
3430 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3431
3432 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3433
3434 cp_if_changed $TMPH libavutil/avconfig.h
3435
3436 test -n "$WARNINGS" && printf "\n$WARNINGS"
3437
3438 # build pkg-config files
3439
3440 pkgconfig_generate(){
3441 name=$1
3442 shortname=${name#lib}${build_suffix}
3443 comment=$2
3444 version=$3
3445 libs=$4
3446 requires=$5
3447 enabled ${name#lib} || return 0
3448 mkdir -p $name
3449 cat <<EOF > $name/$name.pc
3450 prefix=$prefix
3451 exec_prefix=\${prefix}
3452 libdir=$libdir
3453 includedir=$incdir
3454
3455 Name: $name
3456 Description: $comment
3457 Version: $version
3458 Requires: $(enabled shared || echo $requires)
3459 Requires.private: $(enabled shared && echo $requires)
3460 Conflicts:
3461 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3462 Libs.private: $(enabled shared && echo $libs)
3463 Cflags: -I\${includedir}
3464 EOF
3465 cat <<EOF > $name/$name-uninstalled.pc
3466 prefix=
3467 exec_prefix=
3468 libdir=\${pcfiledir}
3469 includedir=${source_path}
3470
3471 Name: $name
3472 Description: $comment
3473 Version: $version
3474 Requires: $requires
3475 Conflicts:
3476 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3477 Cflags: -I\${includedir}
3478 EOF
3479 }
3480
3481 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3482 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3483 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3484 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3485 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3486 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"