threads: test for sys/param.h and include it for sysctl on OpenBSD
[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-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-avplay         disable avplay build
86   --disable-avprobe        disable avprobe build
87   --disable-avserver       disable avserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --disable-w32threads     disable Win32 threads [auto]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --enable-vaapi           enable VAAPI code
111   --enable-vda             enable VDA code
112   --enable-vdpau           enable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --disable-safe-bitstream-reader
117                            disable buffer boundary checking in bitreaders
118                            (faster, but may crash)
119   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
120   --disable-everything     disable all components listed below
121   --disable-encoder=NAME   disable encoder NAME
122   --enable-encoder=NAME    enable encoder NAME
123   --disable-encoders       disable all encoders
124   --disable-decoder=NAME   disable decoder NAME
125   --enable-decoder=NAME    enable decoder NAME
126   --disable-decoders       disable all decoders
127   --disable-hwaccel=NAME   disable hwaccel NAME
128   --enable-hwaccel=NAME    enable hwaccel NAME
129   --disable-hwaccels       disable all hwaccels
130   --disable-muxer=NAME     disable muxer NAME
131   --enable-muxer=NAME      enable muxer NAME
132   --disable-muxers         disable all muxers
133   --disable-demuxer=NAME   disable demuxer NAME
134   --enable-demuxer=NAME    enable demuxer NAME
135   --disable-demuxers       disable all demuxers
136   --enable-parser=NAME     enable parser NAME
137   --disable-parser=NAME    disable parser NAME
138   --disable-parsers        disable all parsers
139   --enable-bsf=NAME        enable bitstream filter NAME
140   --disable-bsf=NAME       disable bitstream filter NAME
141   --disable-bsfs           disable all bitstream filters
142   --enable-protocol=NAME   enable protocol NAME
143   --disable-protocol=NAME  disable protocol NAME
144   --disable-protocols      disable all protocols
145   --disable-indev=NAME     disable input device NAME
146   --disable-outdev=NAME    disable output device NAME
147   --disable-indevs         disable input devices
148   --disable-outdevs        disable output devices
149   --disable-devices        disable all devices
150   --enable-filter=NAME     enable filter NAME
151   --disable-filter=NAME    disable filter NAME
152   --disable-filters        disable all filters
153   --list-decoders          show all available decoders
154   --list-encoders          show all available encoders
155   --list-hwaccels          show all available hardware accelerators
156   --list-muxers            show all available muxers
157   --list-demuxers          show all available demuxers
158   --list-parsers           show all available parsers
159   --list-protocols         show all available protocols
160   --list-bsfs              show all available bitstream filters
161   --list-indevs            show all available input devices
162   --list-outdevs           show all available output devices
163   --list-filters           show all available filters
164
165 External library support:
166   --enable-avisynth        enable reading of AVISynth script files [no]
167   --enable-bzlib           enable bzlib [autodetect]
168   --enable-frei0r          enable frei0r video filtering
169   --enable-gnutls          enable gnutls [no]
170   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
171   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
172   --enable-libopencv       enable video filtering via libopencv [no]
173   --enable-libcdio         enable audio CD grabbing with libcdio
174   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
175                            and libraw1394 [no]
176   --enable-libdirac        enable Dirac support via libdirac [no]
177   --enable-libfaac         enable FAAC support via libfaac [no]
178   --enable-libfreetype     enable libfreetype [no]
179   --enable-libgsm          enable GSM support via libgsm [no]
180   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
181   --enable-libnut          enable NUT (de)muxing via libnut,
182                            native (de)muxer exists [no]
183   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
184   --enable-libpulse        enable Pulseaudio input via libpulse [no]
185   --enable-librtmp         enable RTMP[E] support via librtmp [no]
186   --enable-libschroedinger enable Dirac support via libschroedinger [no]
187   --enable-libspeex        enable Speex support via libspeex [no]
188   --enable-libtheora       enable Theora encoding via libtheora [no]
189   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
190   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
191   --enable-libvorbis       enable Vorbis encoding via libvorbis,
192                            native implementation exists [no]
193   --enable-libvpx          enable VP8 support via libvpx [no]
194   --enable-libx264         enable H.264 encoding via x264 [no]
195   --enable-libxavs         enable AVS encoding via xavs [no]
196   --enable-libxvid         enable Xvid encoding via xvidcore,
197                            native MPEG-4/Xvid encoder exists [no]
198   --enable-mlib            enable Sun medialib [no]
199   --enable-openssl         enable openssl [no]
200   --enable-zlib            enable zlib [autodetect]
201
202 Advanced options (experts only):
203   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
204   --enable-cross-compile   assume a cross-compiler is used
205   --sysroot=PATH           root of cross-build tree
206   --sysinclude=PATH        location of cross-build system headers
207   --target-os=OS           compiler targets OS [$target_os]
208   --target-exec=CMD        command to run executables on target
209   --target-path=DIR        path to view of build directory on target
210   --nm=NM                  use nm tool
211   --ar=AR                  use archive tool AR [$ar_default]
212   --as=AS                  use assembler AS [$as_default]
213   --cc=CC                  use C compiler CC [$cc_default]
214   --ld=LD                  use linker LD
215   --host-cc=HOSTCC         use host C compiler HOSTCC
216   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
217   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
218   --host-libs=HLIBS        use libs HLIBS when linking for host
219   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
220   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
221   --extra-libs=ELIBS       add ELIBS [$ELIBS]
222   --extra-version=STRING   version string suffix []
223   --build-suffix=SUFFIX    library name suffix []
224   --arch=ARCH              select architecture [$arch]
225   --cpu=CPU                select the minimum required CPU (affects
226                            instruction selection, may crash on older CPUs)
227   --disable-asm            disable all assembler optimizations
228   --disable-altivec        disable AltiVec optimizations
229   --disable-amd3dnow       disable 3DNow! optimizations
230   --disable-amd3dnowext    disable 3DNow! extended optimizations
231   --disable-mmx            disable MMX optimizations
232   --disable-mmx2           disable MMX2 optimizations
233   --disable-sse            disable SSE optimizations
234   --disable-ssse3          disable SSSE3 optimizations
235   --disable-avx            disable AVX optimizations
236   --disable-armv5te        disable armv5te optimizations
237   --disable-armv6          disable armv6 optimizations
238   --disable-armv6t2        disable armv6t2 optimizations
239   --disable-armvfp         disable ARM VFP optimizations
240   --disable-iwmmxt         disable iwmmxt optimizations
241   --disable-mmi            disable MMI optimizations
242   --disable-neon           disable neon optimizations
243   --disable-vis            disable VIS optimizations
244   --disable-yasm           disable use of yasm assembler
245   --enable-pic             build position-independent code
246   --malloc-prefix=PFX      prefix malloc and related names with PFX
247   --enable-sram            allow use of on-chip SRAM
248   --disable-symver         disable symbol versioning
249   --optflags               override optimization-related compiler flags
250
251 Developer options (useful when working on Libav itself):
252   --disable-debug          disable debugging symbols
253   --enable-debug=LEVEL     set the debug level [$debuglevel]
254   --disable-optimizations  disable compiler optimizations
255   --enable-extra-warnings  enable more compiler warnings
256   --samples=PATH           location of test samples for FATE, if not set use
257                            \$FATE_SAMPLES at make invocation time.
258
259 NOTE: Object files are built at the place where configure is launched.
260 EOF
261   exit 0
262 }
263
264 quotes='""'
265
266 log(){
267     echo "$@" >> $logfile
268 }
269
270 log_file(){
271     log BEGIN $1
272     pr -n -t $1 >> $logfile
273     log END $1
274 }
275
276 echolog(){
277     log "$@"
278     echo "$@"
279 }
280
281 warn(){
282     log "WARNING: $*"
283     WARNINGS="${WARNINGS}WARNING: $*\n"
284 }
285
286 die(){
287     echolog "$@"
288     cat <<EOF
289
290 If you think configure made a mistake, make sure you are using the latest
291 version from Git.  If the latest version fails, report the problem to the
292 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
293 EOF
294     if disabled logging; then
295         cat <<EOF
296 Rerun configure with logging enabled (do not use --disable-logging), and
297 include the log this produces with your report.
298 EOF
299     else
300 cat <<EOF
301 Include the log file "$logfile" produced by configure as this will help
302 solving the problem.
303 EOF
304     fi
305     exit 1
306 }
307
308 # Avoid locale weirdness, besides we really just want to translate ASCII.
309 toupper(){
310     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
311 }
312
313 tolower(){
314     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
315 }
316
317 c_escape(){
318     echo "$*" | sed 's/["\\]/\\\0/g'
319 }
320
321 sh_quote(){
322     v=$(echo "$1" | sed "s/'/'\\\\''/g")
323     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
324     echo "$v"
325 }
326
327 cleanws(){
328     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
329 }
330
331 filter(){
332     pat=$1
333     shift
334     for v; do
335         eval "case $v in $pat) echo $v ;; esac"
336     done
337 }
338
339 filter_out(){
340     pat=$1
341     shift
342     for v; do
343         eval "case $v in $pat) ;; *) echo $v ;; esac"
344     done
345 }
346
347 map(){
348     m=$1
349     shift
350     for v; do eval $m; done
351 }
352
353 set_all(){
354     value=$1
355     shift
356     for var in $*; do
357         eval $var=$value
358     done
359 }
360
361 set_weak(){
362     value=$1
363     shift
364     for var; do
365         eval : \${$var:=$value}
366     done
367 }
368
369 set_safe(){
370     var=$1
371     shift
372     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
373 }
374
375 get_safe(){
376     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
377 }
378
379 pushvar(){
380     for var in $*; do
381         eval level=\${${var}_level:=0}
382         eval ${var}_${level}="\$$var"
383         eval ${var}_level=$(($level+1))
384     done
385 }
386
387 popvar(){
388     for var in $*; do
389         eval level=\${${var}_level:-0}
390         test $level = 0 && continue
391         eval level=$(($level-1))
392         eval $var="\${${var}_${level}}"
393         eval ${var}_level=$level
394         eval unset ${var}_${level}
395     done
396 }
397
398 enable(){
399     set_all yes $*
400 }
401
402 disable(){
403     set_all no $*
404 }
405
406 enable_weak(){
407     set_weak yes $*
408 }
409
410 disable_weak(){
411     set_weak no $*
412 }
413
414 enable_safe(){
415     for var; do
416         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 disable_safe(){
421     for var; do
422         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
423     done
424 }
425
426 do_enable_deep(){
427     for var; do
428         enabled $var && continue
429         eval sel="\$${var}_select"
430         eval sgs="\$${var}_suggest"
431         pushvar var sgs
432         enable_deep $sel
433         popvar sgs
434         enable_deep_weak $sgs
435         popvar var
436     done
437 }
438
439 enable_deep(){
440     do_enable_deep $*
441     enable $*
442 }
443
444 enable_deep_weak(){
445     do_enable_deep $*
446     enable_weak $*
447 }
448
449 enabled(){
450     test "${1#!}" = "$1" && op== || op=!=
451     eval test "x\$${1#!}" $op "xyes"
452 }
453
454 disabled(){
455     test "${1#!}" = "$1" && op== || op=!=
456     eval test "x\$${1#!}" $op "xno"
457 }
458
459 enabled_all(){
460     for opt; do
461         enabled $opt || return 1
462     done
463 }
464
465 disabled_all(){
466     for opt; do
467         disabled $opt || return 1
468     done
469 }
470
471 enabled_any(){
472     for opt; do
473         enabled $opt && return 0
474     done
475 }
476
477 disabled_any(){
478     for opt; do
479         disabled $opt && return 0
480     done
481     return 1
482 }
483
484 set_default(){
485     for opt; do
486         eval : \${$opt:=\$${opt}_default}
487     done
488 }
489
490 is_in(){
491     value=$1
492     shift
493     for var in $*; do
494         [ $var = $value ] && return 0
495     done
496     return 1
497 }
498
499 check_deps(){
500     for cfg; do
501         cfg="${cfg#!}"
502         enabled ${cfg}_checking && die "Circular dependency for $cfg."
503         disabled ${cfg}_checking && continue
504         enable ${cfg}_checking
505
506         eval dep_all="\$${cfg}_deps"
507         eval dep_any="\$${cfg}_deps_any"
508         eval dep_sel="\$${cfg}_select"
509         eval dep_sgs="\$${cfg}_suggest"
510         eval dep_ifa="\$${cfg}_if"
511         eval dep_ifn="\$${cfg}_if_any"
512
513         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
514         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
515         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
516
517         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
518         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
519         enabled_all  $dep_all || disable $cfg
520         enabled_any  $dep_any || disable $cfg
521         disabled_any $dep_sel && disable $cfg
522
523         if enabled $cfg; then
524             eval dep_extralibs="\$${cfg}_extralibs"
525             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
526             enable_deep $dep_sel
527             enable_deep_weak $dep_sgs
528         fi
529
530         disable ${cfg}_checking
531     done
532 }
533
534 print_config_h(){
535     enabled $1 && v=1 || v=0
536     echo "#define $2 $v"
537 }
538
539 print_config_mak(){
540     enabled $1 && v= || v=!
541     echo "$v$2=yes"
542 }
543
544 print_config_asm(){
545     enabled $1 && echo "%define $2"
546 }
547
548 print_config(){
549     pfx=$1
550     files=$2
551     shift 2
552     for cfg; do
553         ucname="$(toupper $cfg)"
554         for f in $files; do
555             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
556         done
557     done
558 }
559
560 print_enabled(){
561     test "$1" = -n && end=" " && shift || end="\n"
562     suf=$1
563     shift
564     for v; do
565         enabled $v && printf "%s$end" ${v%$suf};
566     done
567 }
568
569 append(){
570     var=$1
571     shift
572     eval "$var=\"\$$var $*\""
573 }
574
575 prepend(){
576     var=$1
577     shift
578     eval "$var=\"$* \$$var\""
579 }
580
581 add_cppflags(){
582     append CPPFLAGS $($filter_cppflags "$@")
583 }
584
585 add_cflags(){
586     append CFLAGS $($filter_cflags "$@")
587 }
588
589 add_asflags(){
590     append ASFLAGS $($filter_asflags "$@")
591 }
592
593 add_ldflags(){
594     append LDFLAGS "$@"
595 }
596
597 add_extralibs(){
598     prepend extralibs "$@"
599 }
600
601 check_cmd(){
602     log "$@"
603     "$@" >> $logfile 2>&1
604 }
605
606 check_cc(){
607     log check_cc "$@"
608     cat > $TMPC
609     log_file $TMPC
610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
611 }
612
613 check_cpp(){
614     log check_cpp "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
618 }
619
620 check_as(){
621     log check_as "$@"
622     cat > $TMPC
623     log_file $TMPC
624     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
625 }
626
627 check_asm(){
628     log check_asm "$@"
629     name="$1"
630     code="$2"
631     shift 2
632     disable $name
633     check_as "$@" <<EOF && enable $name
634 void foo(void){ __asm__ volatile($code); }
635 EOF
636 }
637
638 check_yasm(){
639     log check_yasm "$@"
640     echo "$1" > $TMPS
641     log_file $TMPS
642     shift 1
643     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
644 }
645
646 check_ld(){
647     log check_ld "$@"
648     flags=''
649     libs=''
650     for f; do
651         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
652     done
653     check_cc $($filter_cflags $flags) || return
654     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
655 }
656
657 check_cppflags(){
658     log check_cppflags "$@"
659     set -- $($filter_cppflags "$@")
660     check_cc "$@" <<EOF && append CPPFLAGS "$@"
661 int x;
662 EOF
663 }
664
665 check_cflags(){
666     log check_cflags "$@"
667     set -- $($filter_cflags "$@")
668     check_cc "$@" <<EOF && append CFLAGS "$@"
669 int x;
670 EOF
671 }
672
673 test_ldflags(){
674     log test_ldflags "$@"
675     check_ld "$@" <<EOF
676 int main(void){ return 0; }
677 EOF
678 }
679
680 check_ldflags(){
681     log check_ldflags "$@"
682     test_ldflags "$@" && add_ldflags "$@"
683 }
684
685 check_header(){
686     log check_header "$@"
687     header=$1
688     shift
689     disable_safe $header
690     check_cpp "$@" <<EOF && enable_safe $header
691 #include <$header>
692 int x;
693 EOF
694 }
695
696 check_func(){
697     log check_func "$@"
698     func=$1
699     shift
700     disable $func
701     check_ld "$@" <<EOF && enable $func
702 extern int $func();
703 int main(void){ $func(); }
704 EOF
705 }
706
707 check_mathfunc(){
708     log check_mathfunc "$@"
709     func=$1
710     shift
711     disable $func
712     check_ld "$@" <<EOF && enable $func
713 #include <math.h>
714 float foo(float f) { return $func(f); }
715 int main(void){ return 0; }
716 EOF
717 }
718
719 check_func_headers(){
720     log check_func_headers "$@"
721     headers=$1
722     funcs=$2
723     shift 2
724     {
725         for hdr in $headers; do
726             echo "#include <$hdr>"
727         done
728         for func in $funcs; do
729             echo "long check_$func(void) { return (long) $func; }"
730         done
731         echo "int main(void) { return 0; }"
732     } | check_ld "$@" && enable $funcs && enable_safe $headers
733 }
734
735 check_cpp_condition(){
736     log check_cpp_condition "$@"
737     header=$1
738     condition=$2
739     shift 2
740     check_cpp $($filter_cppflags "$@") <<EOF
741 #include <$header>
742 #if !($condition)
743 #error "unsatisfied condition: $condition"
744 #endif
745 EOF
746 }
747
748 check_lib(){
749     log check_lib "$@"
750     header="$1"
751     func="$2"
752     shift 2
753     check_header $header && check_func $func "$@" && add_extralibs "$@"
754 }
755
756 check_lib2(){
757     log check_lib2 "$@"
758     headers="$1"
759     funcs="$2"
760     shift 2
761     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
762 }
763
764 check_pkg_config(){
765     log check_pkg_config "$@"
766     pkg="$1"
767     headers="$2"
768     funcs="$3"
769     shift 3
770     $pkg_config --exists $pkg || return
771     pkg_cflags=$($pkg_config --cflags $pkg)
772     pkg_libs=$($pkg_config --libs $pkg)
773     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
774         set_safe ${pkg}_cflags $pkg_cflags   &&
775         set_safe ${pkg}_libs   $pkg_libs
776 }
777
778 check_exec(){
779     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
780 }
781
782 check_exec_crash(){
783     code=$(cat)
784
785     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
786     # are safe but may not be available everywhere.  Thus we use
787     # raise(SIGTERM) instead.  The check is run in a subshell so we
788     # can redirect the "Terminated" message from the shell.  SIGBUS
789     # is not defined by standard C so it is used conditionally.
790
791     (check_exec "$@") >> $logfile 2>&1 <<EOF
792 #include <signal.h>
793 static void sighandler(int sig){
794     raise(SIGTERM);
795 }
796 int main(void){
797     signal(SIGILL, sighandler);
798     signal(SIGFPE, sighandler);
799     signal(SIGSEGV, sighandler);
800 #ifdef SIGBUS
801     signal(SIGBUS, sighandler);
802 #endif
803     { $code }
804 }
805 EOF
806 }
807
808 check_type(){
809     log check_type "$@"
810     headers=$1
811     type=$2
812     shift 2
813     disable_safe "$type"
814     incs=""
815     for hdr in $headers; do
816         incs="$incs
817 #include <$hdr>"
818     done
819     check_cc "$@" <<EOF && enable_safe "$type"
820 $incs
821 $type v;
822 EOF
823 }
824
825 check_struct(){
826     log check_type "$@"
827     headers=$1
828     struct=$2
829     member=$3
830     shift 3
831     disable_safe "${struct}_${member}"
832     incs=""
833     for hdr in $headers; do
834         incs="$incs
835 #include <$hdr>"
836     done
837     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
838 $incs
839 const void *p = &(($struct *)0)->$member;
840 EOF
841 }
842
843 require(){
844     name="$1"
845     header="$2"
846     func="$3"
847     shift 3
848     check_lib $header $func "$@" || die "ERROR: $name not found"
849 }
850
851 require2(){
852     name="$1"
853     headers="$2"
854     func="$3"
855     shift 3
856     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
857 }
858
859 require_pkg_config(){
860     pkg="$1"
861     check_pkg_config "$@" || die "ERROR: $pkg not found"
862     add_cflags    $(get_safe ${pkg}_cflags)
863     add_extralibs $(get_safe ${pkg}_libs)
864 }
865
866 check_host_cc(){
867     log check_host_cc "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
871 }
872
873 check_host_cflags(){
874     log check_host_cflags "$@"
875     check_host_cc "$@" <<EOF && append host_cflags "$@"
876 int x;
877 EOF
878 }
879
880 apply(){
881     file=$1
882     shift
883     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
884 }
885
886 cp_if_changed(){
887     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
888     mkdir -p "$(dirname $2)"
889     cp -f "$1" "$2"
890 }
891
892 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
893 # system-dependent things.
894
895 COMPONENT_LIST="
896     bsfs
897     decoders
898     demuxers
899     encoders
900     filters
901     hwaccels
902     indevs
903     muxers
904     outdevs
905     parsers
906     protocols
907 "
908
909 PROGRAM_LIST="
910     avconv
911     avplay
912     avprobe
913     avserver
914     ffmpeg
915 "
916
917 CONFIG_LIST="
918     $COMPONENT_LIST
919     $PROGRAM_LIST
920     aandct
921     ac3dsp
922     avcodec
923     avdevice
924     avfilter
925     avformat
926     avisynth
927     bzlib
928     dct
929     doc
930     dwt
931     dxva2
932     fastdiv
933     fft
934     frei0r
935     gnutls
936     golomb
937     gpl
938     gray
939     h264chroma
940     h264dsp
941     h264pred
942     hardcoded_tables
943     huffman
944     libcdio
945     libdc1394
946     libdirac
947     libfaac
948     libfreetype
949     libgsm
950     libmp3lame
951     libnut
952     libopencore_amrnb
953     libopencore_amrwb
954     libopencv
955     libopenjpeg
956     libpulse
957     librtmp
958     libschroedinger
959     libspeex
960     libtheora
961     libvo_aacenc
962     libvo_amrwbenc
963     libvorbis
964     libvpx
965     libx264
966     libxavs
967     libxvid
968     lpc
969     lsp
970     mdct
971     memalign_hack
972     mlib
973     mpegaudiodsp
974     network
975     nonfree
976     openssl
977     pic
978     postproc
979     rdft
980     rtpdec
981     runtime_cpudetect
982     safe_bitstream_reader
983     shared
984     sinewin
985     small
986     sram
987     static
988     swscale
989     swscale_alpha
990     thumb
991     vaapi
992     vda
993     vdpau
994     version3
995     x11grab
996     zlib
997 "
998
999 THREADS_LIST='
1000     pthreads
1001     w32threads
1002 '
1003
1004 ARCH_LIST='
1005     alpha
1006     arm
1007     avr32
1008     avr32_ap
1009     avr32_uc
1010     bfin
1011     ia64
1012     m68k
1013     mips
1014     mips64
1015     parisc
1016     ppc
1017     ppc64
1018     s390
1019     sh4
1020     sparc
1021     sparc64
1022     tomi
1023     x86
1024     x86_32
1025     x86_64
1026 '
1027
1028 ARCH_EXT_LIST='
1029     altivec
1030     amd3dnow
1031     amd3dnowext
1032     armv5te
1033     armv6
1034     armv6t2
1035     armvfp
1036     avx
1037     iwmmxt
1038     mmi
1039     mmx
1040     mmx2
1041     neon
1042     ppc4xx
1043     sse
1044     ssse3
1045     vfpv3
1046     vis
1047 '
1048
1049 HAVE_LIST_PUB='
1050     bigendian
1051     fast_unaligned
1052 '
1053
1054 HAVE_LIST="
1055     $ARCH_EXT_LIST
1056     $HAVE_LIST_PUB
1057     $THREADS_LIST
1058     aligned_stack
1059     alsa_asoundlib_h
1060     altivec_h
1061     arpa_inet_h
1062     asm_mod_y
1063     attribute_may_alias
1064     attribute_packed
1065     closesocket
1066     cmov
1067     dcbzl
1068     dev_bktr_ioctl_bt848_h
1069     dev_bktr_ioctl_meteor_h
1070     dev_ic_bt8xx_h
1071     dev_video_bktr_ioctl_bt848_h
1072     dev_video_meteor_ioctl_meteor_h
1073     dlfcn_h
1074     dlopen
1075     dos_paths
1076     ebp_available
1077     ebx_available
1078     exp2
1079     exp2f
1080     fast_64bit
1081     fast_clz
1082     fast_cmov
1083     fcntl
1084     fork
1085     getaddrinfo
1086     gethrtime
1087     GetProcessMemoryInfo
1088     GetProcessTimes
1089     GetSystemInfo
1090     getrusage
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     isatty
1096     ldbrx
1097     libdc1394_1
1098     libdc1394_2
1099     llrint
1100     llrintf
1101     local_aligned_16
1102     local_aligned_8
1103     localtime_r
1104     log2
1105     log2f
1106     loongson
1107     lrint
1108     lrintf
1109     lzo1x_999_compress
1110     machine_ioctl_bt848_h
1111     machine_ioctl_meteor_h
1112     malloc_h
1113     MapViewOfFile
1114     memalign
1115     mkstemp
1116     mmap
1117     poll_h
1118     posix_memalign
1119     round
1120     roundf
1121     sched_getaffinity
1122     sdl
1123     sdl_video_size
1124     setmode
1125     setrlimit
1126     sndio_h
1127     socklen_t
1128     soundcard_h
1129     strerror_r
1130     strptime
1131     strtok_r
1132     struct_addrinfo
1133     struct_ipv6_mreq
1134     struct_rusage_ru_maxrss
1135     struct_sockaddr_in6
1136     struct_sockaddr_sa_len
1137     struct_sockaddr_storage
1138     symver
1139     symver_asm_label
1140     symver_gnu_asm
1141     sysctl
1142     sys_mman_h
1143     sys_param_h
1144     sys_resource_h
1145     sys_select_h
1146     sys_soundcard_h
1147     sys_videoio_h
1148     threads
1149     trunc
1150     truncf
1151     vfp_args
1152     VirtualAlloc
1153     winsock2_h
1154     xform_asm
1155     xmm_clobbers
1156     yasm
1157 "
1158
1159 # options emitted with CONFIG_ prefix but not available on command line
1160 CONFIG_EXTRA="
1161     avutil
1162     gplv3
1163     lgplv3
1164 "
1165
1166 CMDLINE_SELECT="
1167     $ARCH_EXT_LIST
1168     $CONFIG_LIST
1169     $THREADS_LIST
1170     asm
1171     cross_compile
1172     debug
1173     extra_warnings
1174     logging
1175     optimizations
1176     symver
1177     yasm
1178 "
1179
1180 PATHS_LIST='
1181     bindir
1182     datadir
1183     incdir
1184     libdir
1185     mandir
1186     prefix
1187     shlibdir
1188 '
1189
1190 CMDLINE_SET="
1191     $PATHS_LIST
1192     ar
1193     arch
1194     as
1195     build_suffix
1196     cc
1197     cpu
1198     cross_prefix
1199     dep_cc
1200     extra_version
1201     host_cc
1202     host_cflags
1203     host_ldflags
1204     host_libs
1205     host_os
1206     ld
1207     logfile
1208     malloc_prefix
1209     nm
1210     optflags
1211     pkg_config
1212     samples
1213     sysinclude
1214     sysroot
1215     target_exec
1216     target_os
1217     target_path
1218 "
1219
1220 CMDLINE_APPEND="
1221     extra_cflags
1222 "
1223
1224 # code dependency declarations
1225
1226 # architecture extensions
1227
1228 armv5te_deps="arm"
1229 armv6_deps="arm"
1230 armv6t2_deps="arm"
1231 armvfp_deps="arm"
1232 iwmmxt_deps="arm"
1233 neon_deps="arm"
1234 vfpv3_deps="armvfp"
1235
1236 mmi_deps="mips"
1237
1238 altivec_deps="ppc"
1239 ppc4xx_deps="ppc"
1240
1241 vis_deps="sparc"
1242
1243 x86_64_suggest="cmov fast_cmov"
1244 amd3dnow_deps="mmx"
1245 amd3dnowext_deps="amd3dnow"
1246 mmx_deps="x86"
1247 mmx2_deps="mmx"
1248 sse_deps="mmx"
1249 ssse3_deps="sse"
1250 avx_deps="ssse3"
1251
1252 aligned_stack_if_any="ppc x86"
1253 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1254 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1255 fast_unaligned_if_any="armv6 ppc x86"
1256
1257 inline_asm_deps="!tms470"
1258 need_memalign="altivec neon sse"
1259
1260 symver_if_any="symver_asm_label symver_gnu_asm"
1261
1262 # subsystems
1263 dct_select="rdft"
1264 mdct_select="fft"
1265 rdft_select="fft"
1266 mpegaudiodsp_select="dct"
1267
1268 # decoders / encoders / hardware accelerators
1269 aac_decoder_select="mdct sinewin"
1270 aac_encoder_select="mdct sinewin"
1271 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1272 ac3_decoder_select="mdct ac3dsp ac3_parser"
1273 ac3_encoder_select="mdct ac3dsp"
1274 ac3_fixed_encoder_select="mdct ac3dsp"
1275 alac_encoder_select="lpc"
1276 amrnb_decoder_select="lsp"
1277 amrwb_decoder_select="lsp"
1278 atrac1_decoder_select="mdct sinewin"
1279 atrac3_decoder_select="mdct"
1280 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1281 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1282 cavs_decoder_select="golomb"
1283 cook_decoder_select="mdct sinewin"
1284 cscd_decoder_suggest="zlib"
1285 dca_decoder_select="mdct"
1286 dnxhd_encoder_select="aandct"
1287 dxa_decoder_select="zlib"
1288 eac3_decoder_select="ac3_decoder"
1289 eac3_encoder_select="mdct ac3dsp"
1290 eamad_decoder_select="aandct"
1291 eatgq_decoder_select="aandct"
1292 eatqi_decoder_select="aandct"
1293 ffv1_decoder_select="golomb"
1294 flac_decoder_select="golomb"
1295 flac_encoder_select="golomb lpc"
1296 flashsv_decoder_select="zlib"
1297 flashsv_encoder_select="zlib"
1298 flashsv2_decoder_select="zlib"
1299 flv_decoder_select="h263_decoder"
1300 flv_encoder_select="h263_encoder"
1301 fraps_decoder_select="huffman"
1302 h261_encoder_select="aandct"
1303 h263_decoder_select="h263_parser"
1304 h263_encoder_select="aandct"
1305 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1306 h263i_decoder_select="h263_decoder"
1307 h263p_encoder_select="h263_encoder"
1308 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1309 h264_dxva2_hwaccel_deps="dxva2api_h"
1310 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1311 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1312 h264_vda_hwaccel_select="vda h264_decoder"
1313 h264_vdpau_decoder_select="vdpau h264_decoder"
1314 imc_decoder_select="fft mdct sinewin"
1315 jpegls_decoder_select="golomb"
1316 jpegls_encoder_select="golomb"
1317 ljpeg_encoder_select="aandct"
1318 loco_decoder_select="golomb"
1319 mjpeg_encoder_select="aandct"
1320 mlp_decoder_select="mlp_parser"
1321 mp1_decoder_select="mpegaudiodsp"
1322 mp1float_decoder_select="mpegaudiodsp"
1323 mp2_decoder_select="mpegaudiodsp"
1324 mp2float_decoder_select="mpegaudiodsp"
1325 mp3_decoder_select="mpegaudiodsp"
1326 mp3adu_decoder_select="mpegaudiodsp"
1327 mp3adufloat_decoder_select="mpegaudiodsp"
1328 mp3float_decoder_select="mpegaudiodsp"
1329 mp3on4_decoder_select="mpegaudiodsp"
1330 mp3on4float_decoder_select="mpegaudiodsp"
1331 mpc7_decoder_select="mpegaudiodsp"
1332 mpc8_decoder_select="mpegaudiodsp"
1333 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1334 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1335 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1336 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1337 mpeg1video_encoder_select="aandct"
1338 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1339 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1340 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1341 mpeg2video_encoder_select="aandct"
1342 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1343 mpeg4_encoder_select="h263_encoder"
1344 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1345 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1346 msmpeg4v1_decoder_select="h263_decoder"
1347 msmpeg4v1_encoder_select="h263_encoder"
1348 msmpeg4v2_decoder_select="h263_decoder"
1349 msmpeg4v2_encoder_select="h263_encoder"
1350 msmpeg4v3_decoder_select="h263_decoder"
1351 msmpeg4v3_encoder_select="h263_encoder"
1352 nellymoser_decoder_select="mdct sinewin"
1353 nellymoser_encoder_select="mdct sinewin"
1354 png_decoder_select="zlib"
1355 png_encoder_select="zlib"
1356 qcelp_decoder_select="lsp"
1357 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1358 ra_144_encoder_select="lpc"
1359 rv10_decoder_select="h263_decoder"
1360 rv10_encoder_select="h263_encoder"
1361 rv20_decoder_select="h263_decoder"
1362 rv20_encoder_select="h263_encoder"
1363 rv30_decoder_select="golomb h264chroma h264pred"
1364 rv40_decoder_select="golomb h264chroma h264pred"
1365 shorten_decoder_select="golomb"
1366 sipr_decoder_select="lsp"
1367 snow_decoder_select="dwt"
1368 snow_encoder_select="aandct dwt"
1369 svq1_encoder_select="aandct"
1370 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1371 svq3_decoder_suggest="zlib"
1372 theora_decoder_select="vp3_decoder"
1373 tiff_decoder_suggest="zlib"
1374 tiff_encoder_suggest="zlib"
1375 truehd_decoder_select="mlp_decoder"
1376 tscc_decoder_select="zlib"
1377 twinvq_decoder_select="mdct lsp sinewin"
1378 vc1_decoder_select="h263_decoder h264chroma"
1379 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1380 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1381 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1382 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1383 vc1image_decoder_select="vc1_decoder"
1384 vorbis_decoder_select="mdct"
1385 vorbis_encoder_select="mdct"
1386 vp6_decoder_select="huffman"
1387 vp6a_decoder_select="vp6_decoder"
1388 vp6f_decoder_select="vp6_decoder"
1389 vp8_decoder_select="h264pred"
1390 wmapro_decoder_select="mdct sinewin"
1391 wmav1_decoder_select="mdct sinewin"
1392 wmav1_encoder_select="mdct sinewin"
1393 wmav2_decoder_select="mdct sinewin"
1394 wmav2_encoder_select="mdct sinewin"
1395 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1396 wmv1_decoder_select="h263_decoder"
1397 wmv1_encoder_select="h263_encoder"
1398 wmv2_decoder_select="h263_decoder"
1399 wmv2_encoder_select="h263_encoder"
1400 wmv3_decoder_select="vc1_decoder"
1401 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1402 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1403 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1404 wmv3image_decoder_select="wmv3_decoder"
1405 zlib_decoder_select="zlib"
1406 zlib_encoder_select="zlib"
1407 zmbv_decoder_select="zlib"
1408 zmbv_encoder_select="zlib"
1409
1410 vaapi_deps="va_va_h"
1411 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1412 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1413
1414 # parsers
1415 h264_parser_select="golomb h264chroma h264dsp h264pred"
1416
1417 # external libraries
1418 libdirac_decoder_deps="libdirac !libschroedinger"
1419 libdirac_encoder_deps="libdirac"
1420 libfaac_encoder_deps="libfaac"
1421 libgsm_decoder_deps="libgsm"
1422 libgsm_encoder_deps="libgsm"
1423 libgsm_ms_decoder_deps="libgsm"
1424 libgsm_ms_encoder_deps="libgsm"
1425 libmp3lame_encoder_deps="libmp3lame"
1426 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1427 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1428 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1429 libopenjpeg_decoder_deps="libopenjpeg"
1430 libschroedinger_decoder_deps="libschroedinger"
1431 libschroedinger_encoder_deps="libschroedinger"
1432 libspeex_decoder_deps="libspeex"
1433 libspeex_encoder_deps="libspeex"
1434 libtheora_encoder_deps="libtheora"
1435 libvo_aacenc_encoder_deps="libvo_aacenc"
1436 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1437 libvorbis_encoder_deps="libvorbis"
1438 libvpx_decoder_deps="libvpx"
1439 libvpx_encoder_deps="libvpx"
1440 libx264_encoder_deps="libx264"
1441 libxavs_encoder_deps="libxavs"
1442 libxvid_encoder_deps="libxvid"
1443
1444 # demuxers / muxers
1445 ac3_demuxer_select="ac3_parser"
1446 asf_stream_muxer_select="asf_muxer"
1447 avisynth_demuxer_deps="avisynth"
1448 dirac_demuxer_select="dirac_parser"
1449 eac3_demuxer_select="ac3_parser"
1450 flac_demuxer_select="flac_parser"
1451 ipod_muxer_select="mov_muxer"
1452 libnut_demuxer_deps="libnut"
1453 libnut_muxer_deps="libnut"
1454 matroska_audio_muxer_select="matroska_muxer"
1455 matroska_demuxer_suggest="zlib bzlib"
1456 mov_demuxer_suggest="zlib"
1457 mp3_demuxer_select="mpegaudio_parser"
1458 mp4_muxer_select="mov_muxer"
1459 mpegtsraw_demuxer_select="mpegts_demuxer"
1460 mxf_d10_muxer_select="mxf_muxer"
1461 ogg_demuxer_select="golomb"
1462 psp_muxer_select="mov_muxer"
1463 rtp_demuxer_select="sdp_demuxer"
1464 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1465 rtsp_demuxer_select="http_protocol rtpdec"
1466 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1467 sap_demuxer_select="sdp_demuxer"
1468 sap_muxer_select="rtp_muxer rtp_protocol"
1469 sdp_demuxer_select="rtpdec"
1470 spdif_muxer_select="aac_parser"
1471 tg2_muxer_select="mov_muxer"
1472 tgp_muxer_select="mov_muxer"
1473 w64_demuxer_deps="wav_demuxer"
1474
1475 # indevs / outdevs
1476 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1477 alsa_outdev_deps="alsa_asoundlib_h"
1478 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1479 dv1394_indev_deps="dv1394 dv_demuxer"
1480 fbdev_indev_deps="linux_fb_h"
1481 jack_indev_deps="jack_jack_h"
1482 libcdio_indev_deps="libcdio"
1483 libdc1394_indev_deps="libdc1394"
1484 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1485 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1486 pulse_indev_deps="libpulse"
1487 sndio_indev_deps="sndio_h"
1488 sndio_outdev_deps="sndio_h"
1489 v4l_indev_deps="linux_videodev_h"
1490 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1491 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1492 vfwcap_indev_extralibs="-lavicap32"
1493 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1494 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1495
1496 # protocols
1497 gopher_protocol_deps="network"
1498 httpproxy_protocol_deps="network"
1499 httpproxy_protocol_select="tcp_protocol"
1500 http_protocol_deps="network"
1501 http_protocol_select="tcp_protocol"
1502 https_protocol_select="tls_protocol"
1503 mmsh_protocol_select="http_protocol"
1504 mmst_protocol_deps="network"
1505 rtmp_protocol_select="tcp_protocol"
1506 rtp_protocol_select="udp_protocol"
1507 tcp_protocol_deps="network"
1508 tls_protocol_deps_any="openssl gnutls"
1509 tls_protocol_select="tcp_protocol"
1510 udp_protocol_deps="network"
1511
1512 # filters
1513 blackframe_filter_deps="gpl"
1514 boxblur_filter_deps="gpl"
1515 cropdetect_filter_deps="gpl"
1516 delogo_filter_deps="gpl"
1517 drawtext_filter_deps="libfreetype"
1518 frei0r_filter_deps="frei0r dlopen strtok_r"
1519 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1520 hqdn3d_filter_deps="gpl"
1521 ocv_filter_deps="libopencv"
1522 scale_filter_deps="swscale"
1523 yadif_filter_deps="gpl"
1524
1525 # libraries
1526 avdevice_deps="avcodec avformat"
1527 avformat_deps="avcodec"
1528 postproc_deps="gpl"
1529
1530 # programs
1531 avconv_deps="avcodec avformat swscale"
1532 avplay_deps="avcodec avformat swscale sdl"
1533 avplay_select="rdft"
1534 avprobe_deps="avcodec avformat"
1535 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1536 avserver_extralibs='$ldl'
1537 ffmpeg_deps="avcodec avformat swscale"
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 rm_muxer rm_demuxer"
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 postproc
1682 enable swscale
1683
1684 enable asm
1685 enable debug
1686 enable doc
1687 enable fastdiv
1688 enable network
1689 enable optimizations
1690 enable safe_bitstream_reader
1691 enable static
1692 enable swscale_alpha
1693
1694 # build settings
1695 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1696 AVSERVERLDFLAGS=-Wl,-E
1697 LIBPREF="lib"
1698 LIBSUF=".a"
1699 FULLNAME='$(NAME)$(BUILDSUF)'
1700 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1701 SLIBPREF="lib"
1702 SLIBSUF=".so"
1703 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1704 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1705 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1706 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1707 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1708 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1709
1710 AS_O='-o $@'
1711 CC_O='-o $@'
1712
1713 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1714 host_libs='-lm'
1715
1716 target_path='$(CURDIR)'
1717
1718 # since the object filename is not given with the -MM flag, the compiler
1719 # is only able to print the basename, and we must add the path ourselves
1720 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1721 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1722
1723 # find source path
1724 if test -f configure; then
1725     source_path=.
1726 else
1727     source_path=$(cd $(dirname "$0"); pwd)
1728     echo "$source_path" | grep -q '[[:blank:]]' &&
1729         die "Out of tree builds are impossible with whitespace in source path."
1730     test -e "$source_path/config.h" &&
1731         die "Out of tree builds are impossible with config.h in source dir."
1732 fi
1733
1734 for v in "$@"; do
1735     r=${v#*=}
1736     l=${v%"$r"}
1737     r=$(sh_quote "$r")
1738     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1739 done
1740
1741 find_things(){
1742     thing=$1
1743     pattern=$2
1744     file=$source_path/$3
1745     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1746 }
1747
1748 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1749 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1750 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1751 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1752 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1753 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1754 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1755 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1756 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1757 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1758 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1759
1760 ALL_COMPONENTS="
1761     $BSF_LIST
1762     $DECODER_LIST
1763     $DEMUXER_LIST
1764     $ENCODER_LIST
1765     $FILTER_LIST
1766     $HWACCEL_LIST
1767     $INDEV_LIST
1768     $MUXER_LIST
1769     $OUTDEV_LIST
1770     $PARSER_LIST
1771     $PROTOCOL_LIST
1772 "
1773
1774 find_tests(){
1775     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1776 }
1777
1778 ACODEC_TESTS=$(find_tests acodec)
1779 VCODEC_TESTS=$(find_tests vsynth1)
1780 LAVF_TESTS=$(find_tests lavf)
1781 LAVFI_TESTS=$(find_tests lavfi)
1782 SEEK_TESTS=$(find_tests seek seek_)
1783
1784 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1785
1786 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1787
1788 for n in $COMPONENT_LIST; do
1789     v=$(toupper ${n%s})_LIST
1790     eval enable \$$v
1791     eval ${n}_if_any="\$$v"
1792 done
1793
1794 enable $ARCH_EXT_LIST $ALL_TESTS
1795
1796 die_unknown(){
1797     echo "Unknown option \"$1\"."
1798     echo "See $0 --help for available options."
1799     exit 1
1800 }
1801
1802 show_list() {
1803     suffix=_$1
1804     shift
1805     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1806     exit 0
1807 }
1808
1809 for opt do
1810     optval="${opt#*=}"
1811     case "$opt" in
1812     --extra-ldflags=*) add_ldflags $optval
1813     ;;
1814     --extra-libs=*) add_extralibs $optval
1815     ;;
1816     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1817     ;;
1818     --enable-debug=*) debuglevel="$optval"
1819     ;;
1820     --disable-everything)
1821     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1822     ;;
1823     --enable-*=*|--disable-*=*)
1824     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1825     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1826     eval list=\$$(toupper $thing)_LIST
1827     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1828     $action $(filter "$name" $list)
1829     ;;
1830     --enable-?*|--disable-?*)
1831     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1832     if is_in $option $COMPONENT_LIST; then
1833         test $action = disable && action=unset
1834         eval $action \$$(toupper ${option%s})_LIST
1835     elif is_in $option $CMDLINE_SELECT; then
1836         $action $option
1837     else
1838         die_unknown $opt
1839     fi
1840     ;;
1841     --list-*)
1842         NAME="${opt#--list-}"
1843         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1844         NAME=${NAME%s}
1845         eval show_list $NAME \$$(toupper $NAME)_LIST
1846     ;;
1847     --help|-h) show_help
1848     ;;
1849     *)
1850     optname="${opt%%=*}"
1851     optname="${optname#--}"
1852     optname=$(echo "$optname" | sed 's/-/_/g')
1853     if is_in $optname $CMDLINE_SET; then
1854         eval $optname='$optval'
1855     elif is_in $optname $CMDLINE_APPEND; then
1856         append $optname "$optval"
1857     else
1858          die_unknown $opt
1859     fi
1860     ;;
1861     esac
1862 done
1863
1864 disabled logging && logfile=/dev/null
1865
1866 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1867 set >> $logfile
1868
1869 test -n "$cross_prefix" && enable cross_compile
1870
1871 if enabled cross_compile; then
1872     test -n "$arch" && test -n "$target_os" ||
1873         die "Must specify target arch and OS when cross-compiling"
1874 fi
1875
1876 set_default arch target_os
1877
1878 ar_default="${cross_prefix}${ar_default}"
1879 cc_default="${cross_prefix}${cc_default}"
1880 nm_default="${cross_prefix}${nm_default}"
1881 pkg_config_default="${cross_prefix}${pkg_config_default}"
1882 ranlib="${cross_prefix}${ranlib}"
1883
1884 sysinclude_default="${sysroot}/usr/include"
1885
1886 set_default cc nm pkg_config sysinclude
1887 enabled cross_compile || host_cc_default=$cc
1888 set_default host_cc
1889
1890 if ! $pkg_config --version >/dev/null 2>&1; then
1891     warn "$pkg_config not found, library detection may fail."
1892     pkg_config=false
1893 fi
1894
1895 exesuf() {
1896     case $1 in
1897         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1898     esac
1899 }
1900
1901 EXESUF=$(exesuf $target_os)
1902 HOSTEXESUF=$(exesuf $host_os)
1903
1904 # set temporary file name
1905 : ${TMPDIR:=$TEMPDIR}
1906 : ${TMPDIR:=$TMP}
1907 : ${TMPDIR:=/tmp}
1908
1909 if ! check_cmd mktemp -u XXXXXX; then
1910     # simple replacement for missing mktemp
1911     # NOT SAFE FOR GENERAL USE
1912     mktemp(){
1913         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1914     }
1915 fi
1916
1917 tmpfile(){
1918     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1919         (set -C; exec > $tmp) 2>/dev/null ||
1920         die "Unable to create temporary file in $TMPDIR."
1921     append TMPFILES $tmp
1922     eval $1=$tmp
1923 }
1924
1925 trap 'rm -f -- $TMPFILES' EXIT
1926
1927 tmpfile TMPASM .asm
1928 tmpfile TMPC   .c
1929 tmpfile TMPE   $EXESUF
1930 tmpfile TMPH   .h
1931 tmpfile TMPO   .o
1932 tmpfile TMPS   .S
1933 tmpfile TMPSH  .sh
1934 tmpfile TMPV   .ver
1935
1936 unset -f mktemp
1937
1938 chmod +x $TMPE
1939
1940 # make sure we can execute files in $TMPDIR
1941 cat > $TMPSH 2>> $logfile <<EOF
1942 #! /bin/sh
1943 EOF
1944 chmod +x $TMPSH >> $logfile 2>&1
1945 if ! $TMPSH >> $logfile 2>&1; then
1946     cat <<EOF
1947 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1948 variable to another directory and make sure that it is not mounted noexec.
1949 EOF
1950     die "Sanity test failed."
1951 fi
1952
1953 filter_asflags=echo
1954 filter_cflags=echo
1955 filter_cppflags=echo
1956
1957 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1958     cc_type=llvm_gcc
1959     cc_version=__VERSION__
1960     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1961     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1962     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964     speed_cflags='-O3'
1965     size_cflags='-Os'
1966 elif $cc -v 2>&1 | grep -qi ^gcc; then
1967     cc_type=gcc
1968     cc_version=__VERSION__
1969     gcc_version=$($cc --version | head -n1)
1970     gcc_basever=$($cc -dumpversion)
1971     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1972     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1973     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1974     if ! $cc -dumpversion | grep -q '^2\.'; then
1975         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1976         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1977     fi
1978     speed_cflags='-O3'
1979     size_cflags='-Os'
1980 elif $cc --version 2>/dev/null | grep -q Intel; then
1981     cc_type=icc
1982     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1983     cc_ident=$($cc --version | head -n1)
1984     icc_version=$($cc -dumpversion)
1985     CC_DEPFLAGS='-MMD'
1986     AS_DEPFLAGS='-MMD'
1987     speed_cflags='-O3'
1988     size_cflags='-Os'
1989     noopt_cflags='-O1'
1990 elif $cc -v 2>&1 | grep -q xlc; then
1991     cc_type=xlc
1992     cc_version="AV_STRINGIFY(__IBMC__)"
1993     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1994     speed_cflags='-O5'
1995     size_cflags='-O5 -qcompact'
1996 elif $cc -V 2>/dev/null | grep -q Compaq; then
1997     cc_type=ccc
1998     cc_version="AV_STRINGIFY(__DECC_VER)"
1999     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2000     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2001     debuglevel=3
2002     add_ldflags -Wl,-z,now # calls to libots crash without this
2003     speed_cflags='-fast'
2004     size_cflags='-O1'
2005 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2006     test -d "$sysroot" || die "No valid sysroot specified."
2007     cc_type=armcc
2008     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2009     cc_ident=$($cc --vsn | head -n1)
2010     armcc_conf="$PWD/armcc.conf"
2011     $cc --arm_linux_configure                 \
2012         --arm_linux_config_file="$armcc_conf" \
2013         --configure_sysroot="$sysroot"        \
2014         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2015         die "Error creating armcc configuration file."
2016     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2017     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2018     as_default="${cross_prefix}gcc"
2019     CC_DEPFLAGS='-MMD'
2020     AS_DEPFLAGS='-MMD'
2021     speed_cflags='-O3'
2022     size_cflags='-Os'
2023     filter_asflags="filter_out -W${armcc_opt}*"
2024 elif $cc -version 2>/dev/null | grep -q TMS470; then
2025     cc_type=tms470
2026     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2027     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2028     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2029     CC_O='-fr=$(@D)'
2030     as_default="${cross_prefix}gcc"
2031     ld_default="${cross_prefix}gcc"
2032     TMPO=$(basename $TMPC .c).o
2033     append TMPFILES $TMPO
2034     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2035     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2036     AS_DEPFLAGS='-MMD'
2037     speed_cflags='-O3 -mf=5'
2038     size_cflags='-O3 -mf=2'
2039     filter_cflags=tms470_flags
2040     tms470_flags(){
2041         for flag; do
2042             case $flag in
2043                 -march=*|-mcpu=*)
2044                     case "${flag#*=}" in
2045                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2046                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2047                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2048                         armv6*|arm11*)          echo -mv=6   ;;
2049                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2050                                                 echo -mv=5e  ;;
2051                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2052                     esac
2053                     ;;
2054                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2055                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2056                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2057                 -msoft-float)   echo --float_support=vfplib       ;;
2058                 -O[0-3]|-mf=*)  echo $flag                        ;;
2059                 -g)             echo -g -mn                       ;;
2060                 -pds=*)         echo $flag                        ;;
2061             esac
2062         done
2063     }
2064 elif $cc -v 2>&1 | grep -q clang; then
2065     cc_type=clang
2066     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2067         cc_version=__clang_version__ || cc_version=__VERSION__
2068     cc_ident=$($cc --version | head -n1)
2069     CC_DEPFLAGS='-MMD'
2070     AS_DEPFLAGS='-MMD'
2071     speed_cflags='-O3'
2072     size_cflags='-Os'
2073 elif $cc -V 2>&1 | grep -q Sun; then
2074     cc_type=suncc
2075     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2076     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2077     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2078     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2079     add_ldflags -xc99
2080     speed_cflags='-O5'
2081     size_cflags='-O5 -xspace'
2082     filter_cflags=suncc_flags
2083     suncc_flags(){
2084         for flag; do
2085             case $flag in
2086                 -march=*|-mcpu=*)
2087                     case "${flag#*=}" in
2088                         native)                   echo -xtarget=native       ;;
2089                         v9|niagara)               echo -xarch=sparc          ;;
2090                         ultrasparc)               echo -xarch=sparcvis       ;;
2091                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2092                         i586|pentium)             echo -xchip=pentium        ;;
2093                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2094                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2095                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2096                         pentium4*)          echo -xtarget=pentium4           ;;
2097                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2098                         *-sse3)             echo -xarch=sse3                 ;;
2099                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2100                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2101                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2102                         k8|opteron|athlon64|athlon-fx)
2103                                                   echo -xarch=sse2a          ;;
2104                         athlon*)                  echo -xarch=pentium_proa   ;;
2105                     esac
2106                     ;;
2107                 -std=c99)             echo -xc99              ;;
2108                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2109                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2110                 -W*,*)                echo $flag              ;;
2111                 -f*-*|-W*)                                    ;;
2112                 *)                    echo $flag              ;;
2113             esac
2114         done
2115     }
2116 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2117     cc_type=pathscale
2118     cc_version=__PATHSCALE__
2119     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2120     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2121     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2122     speed_cflags='-O2'
2123     size_cflags='-Os'
2124     filter_cflags='filter_out -Wdisabled-optimization'
2125 elif $cc -v 2>&1 | grep -q Open64; then
2126     cc_type=open64
2127     cc_version=__OPEN64__
2128     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2129     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2131     speed_cflags='-O2'
2132     size_cflags='-Os'
2133     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2134 fi
2135
2136 test -n "$cc_type" && enable $cc_type ||
2137     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2138
2139 : ${as_default:=$cc}
2140 : ${dep_cc_default:=$cc}
2141 : ${ld_default:=$cc}
2142 set_default ar as dep_cc ld
2143
2144 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2145 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2146
2147 add_cflags $extra_cflags
2148 add_asflags $extra_cflags
2149
2150 if test -n "$sysroot"; then
2151     case "$cc_type" in
2152         gcc|llvm_gcc|clang)
2153             add_cppflags --sysroot="$sysroot"
2154             add_ldflags --sysroot="$sysroot"
2155         ;;
2156         tms470)
2157             add_cppflags -I"$sysinclude"
2158             add_ldflags  --sysroot="$sysroot"
2159         ;;
2160     esac
2161 fi
2162
2163 if test "$cpu" = host; then
2164     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2165
2166     case "$cc_type" in
2167         gcc|llvm_gcc)
2168             check_native(){
2169                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2170                 sed -n "/cc1.*$1=/{
2171                             s/.*$1=\\([^ ]*\\).*/\\1/
2172                             p
2173                             q
2174                         }" $TMPE
2175             }
2176             cpu=$(check_native -march || check_native -mcpu)
2177         ;;
2178     esac
2179
2180     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2181 fi
2182
2183 # Deal with common $arch aliases
2184 case "$arch" in
2185     arm*)
2186         arch="arm"
2187     ;;
2188     mips|mipsel|IP*)
2189         arch="mips"
2190     ;;
2191     mips64*)
2192         arch="mips"
2193         subarch="mips64"
2194     ;;
2195     parisc|hppa)
2196         arch="parisc"
2197     ;;
2198     parisc64|hppa64)
2199         arch="parisc"
2200         subarch="parisc64"
2201     ;;
2202     "Power Macintosh"|ppc|powerpc)
2203         arch="ppc"
2204     ;;
2205     ppc64|powerpc64)
2206         arch="ppc"
2207         subarch="ppc64"
2208     ;;
2209     s390|s390x)
2210         arch="s390"
2211     ;;
2212     sh4|sh)
2213         arch="sh4"
2214     ;;
2215     sun4u|sparc64)
2216         arch="sparc"
2217         subarch="sparc64"
2218     ;;
2219     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2220         arch="x86"
2221     ;;
2222 esac
2223
2224 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2225 enable $arch
2226
2227 # Add processor-specific flags
2228 if test "$cpu" = generic; then
2229     : do nothing
2230 elif enabled ppc; then
2231
2232     case $(tolower $cpu) in
2233         601|ppc601|powerpc601)
2234             cpuflags="-mcpu=601"
2235             disable altivec
2236         ;;
2237         603*|ppc603*|powerpc603*)
2238             cpuflags="-mcpu=603"
2239             disable altivec
2240         ;;
2241         604*|ppc604*|powerpc604*)
2242             cpuflags="-mcpu=604"
2243             disable altivec
2244         ;;
2245         g3|75*|ppc75*|powerpc75*)
2246             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2247             disable altivec
2248         ;;
2249         g4|745*|ppc745*|powerpc745*)
2250             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2251         ;;
2252         74*|ppc74*|powerpc74*)
2253             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2254         ;;
2255         g5|970|ppc970|powerpc970|power4*)
2256             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2257         ;;
2258         cell)
2259             cpuflags="-mcpu=cell"
2260             enable ldbrx
2261         ;;
2262         e500v2)
2263             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2264             disable altivec
2265         ;;
2266         e500)
2267             cpuflags="-mcpu=8540 -mhard-float"
2268             disable altivec
2269         ;;
2270     esac
2271
2272 elif enabled x86; then
2273
2274     case $cpu in
2275         i[345]86|pentium)
2276             cpuflags="-march=$cpu"
2277             disable mmx
2278         ;;
2279         # targets that do NOT support conditional mov (cmov)
2280         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2281             cpuflags="-march=$cpu"
2282             disable cmov
2283         ;;
2284         # targets that do support conditional mov (cmov)
2285         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2286             cpuflags="-march=$cpu"
2287             enable cmov
2288             enable fast_cmov
2289         ;;
2290         # targets that do support conditional mov but on which it's slow
2291         pentium4|pentium4m|prescott|nocona)
2292             cpuflags="-march=$cpu"
2293             enable cmov
2294             disable fast_cmov
2295         ;;
2296     esac
2297
2298 elif enabled sparc; then
2299
2300     case $cpu in
2301         niagara)
2302             cpuflags="-mcpu=$cpu"
2303             disable vis
2304         ;;
2305         sparc64)
2306             cpuflags="-mcpu=v9"
2307         ;;
2308     esac
2309
2310 elif enabled arm; then
2311
2312     case $cpu in
2313         armv*)
2314             cpuflags="-march=$cpu"
2315             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2316         ;;
2317         *)
2318             cpuflags="-mcpu=$cpu"
2319             case $cpu in
2320                 cortex-a*)                               subarch=armv7a  ;;
2321                 cortex-r*)                               subarch=armv7r  ;;
2322                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2323                 arm11*)                                  subarch=armv6   ;;
2324                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2325                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2326             esac
2327         ;;
2328     esac
2329
2330 elif enabled alpha; then
2331
2332     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2333
2334 elif enabled bfin; then
2335
2336     cpuflags="-mcpu=$cpu"
2337
2338 elif enabled mips; then
2339
2340     cpuflags="-march=$cpu"
2341
2342 elif enabled avr32; then
2343
2344     case $cpu in
2345         ap7[02]0[0-2])
2346             subarch="avr32_ap"
2347             cpuflags="-mpart=$cpu"
2348         ;;
2349         ap)
2350             subarch="avr32_ap"
2351             cpuflags="-march=$cpu"
2352         ;;
2353         uc3[ab]*)
2354             subarch="avr32_uc"
2355             cpuflags="-mcpu=$cpu"
2356         ;;
2357         uc)
2358             subarch="avr32_uc"
2359             cpuflags="-march=$cpu"
2360         ;;
2361     esac
2362
2363 fi
2364
2365 add_cflags $cpuflags
2366 add_asflags $cpuflags
2367
2368 # compiler sanity check
2369 check_exec <<EOF
2370 int main(void){ return 0; }
2371 EOF
2372 if test "$?" != 0; then
2373     echo "$cc is unable to create an executable file."
2374     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2375         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2376         echo "Only do this if you know what cross compiling means."
2377     fi
2378     die "C compiler test failed."
2379 fi
2380
2381 add_cppflags -D_ISOC99_SOURCE
2382 check_cflags -std=c99
2383 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2384 #include <stdlib.h>
2385 EOF
2386 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2387 #include <stdlib.h>
2388 EOF
2389
2390 check_host_cflags -std=c99
2391 check_host_cflags -Wall
2392
2393 case "$arch" in
2394     alpha|ia64|mips|parisc|sparc)
2395         spic=$shared
2396     ;;
2397     x86)
2398         subarch="x86_32"
2399         check_cc <<EOF && subarch="x86_64"
2400         int test[(int)sizeof(char*) - 7];
2401 EOF
2402         if test "$subarch" = "x86_64"; then
2403             spic=$shared
2404         fi
2405     ;;
2406 esac
2407
2408 enable $subarch
2409 enabled spic && enable pic
2410
2411 # OS specific
2412 case $target_os in
2413     haiku)
2414         prefix_default="/boot/common"
2415         network_extralibs="-lnetwork"
2416         host_libs=
2417         ;;
2418     sunos)
2419         AVSERVERLDFLAGS=""
2420         SHFLAGS='-shared -Wl,-h,$$(@F)'
2421         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2422         network_extralibs="-lsocket -lnsl"
2423         add_cppflags -D__EXTENSIONS__
2424         # When using suncc to build, the Solaris linker will mark
2425         # an executable with each instruction set encountered by
2426         # the Solaris assembler.  As our libraries contain their own
2427         # guards for processor-specific code, instead suppress
2428         # generation of the HWCAPS ELF section on Solaris x86 only.
2429         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2430         nm_opts='-P -g'
2431         ;;
2432     netbsd)
2433         disable symver
2434         oss_indev_extralibs="-lossaudio"
2435         oss_outdev_extralibs="-lossaudio"
2436         ;;
2437     openbsd)
2438         enable malloc_aligned
2439         # On OpenBSD 4.5. the compiler does not use PIC unless
2440         # explicitly using -fPIC. Libav builds fine without PIC,
2441         # however the generated executable will not do anything
2442         # (simply quits with exit-code 1, no crash, no output).
2443         # Thus explicitly enable PIC here.
2444         enable pic
2445         disable symver
2446         SHFLAGS='-shared'
2447         oss_indev_extralibs="-lossaudio"
2448         oss_outdev_extralibs="-lossaudio"
2449         ;;
2450     dragonfly)
2451         enable malloc_aligned
2452         disable symver
2453         ;;
2454     freebsd)
2455         enable malloc_aligned
2456         ;;
2457     bsd/os)
2458         add_extralibs -lpoll -lgnugetopt
2459         ;;
2460     darwin)
2461         enable malloc_aligned
2462         gas="gas-preprocessor.pl $cc"
2463         enabled ppc && add_asflags -force_cpusubtype_ALL
2464         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2465         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2466         add_ldflags -Wl,-dynamic,-search_paths_first
2467         SLIBSUF=".dylib"
2468         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2469         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2470         AVSERVERLDFLAGS=-Wl,-bind_at_load
2471         objformat="macho"
2472         enabled x86_64 && objformat="macho64"
2473         enabled_any pic shared ||
2474             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2475         ;;
2476     mingw32*)
2477         if test $target_os = "mingw32ce"; then
2478             disable network
2479         else
2480             target_os=mingw32
2481         fi
2482         LIBTARGET=i386
2483         if enabled x86_64; then
2484             enable malloc_aligned
2485             LIBTARGET="i386:x86-64"
2486         elif enabled arm; then
2487             LIBTARGET=arm-wince
2488         fi
2489         shlibdir_default="$bindir_default"
2490         SLIBPREF=""
2491         SLIBSUF=".dll"
2492         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2493         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2494         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2495         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2496         SLIB_INSTALL_LINKS=
2497         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2498         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2499         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'
2500         objformat="win32"
2501         dlltool="${cross_prefix}dlltool"
2502         enable dos_paths
2503         check_cflags -fno-common
2504         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2505                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2506                 die "ERROR: MinGW runtime version must be >= 3.15."
2507         add_cppflags -U__STRICT_ANSI__
2508         ;;
2509     cygwin*)
2510         target_os=cygwin
2511         shlibdir_default="$bindir_default"
2512         SLIBPREF="cyg"
2513         SLIBSUF=".dll"
2514         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2515         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2516         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2517         objformat="win32"
2518         enable dos_paths
2519         check_cflags -fno-common
2520         add_cppflags -U__STRICT_ANSI__
2521         ;;
2522     *-dos|freedos|opendos)
2523         network_extralibs="-lsocket"
2524         objformat="coff"
2525         enable dos_paths
2526         add_cppflags -U__STRICT_ANSI__
2527         ;;
2528     linux)
2529         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2530         enable dv1394
2531         ;;
2532     irix*)
2533         target_os=irix
2534         ranlib="echo ignoring ranlib"
2535         ;;
2536     os/2*)
2537         ln_s="cp -f"
2538         objformat="aout"
2539         add_cppflags -D_GNU_SOURCE
2540         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2541         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2542         AVSERVERLDFLAGS=""
2543         LIBSUF="_s.a"
2544         SLIBPREF=""
2545         SLIBSUF=".dll"
2546         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2547         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2548         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2549           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2550           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2551           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2552           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2553           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2554         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2555           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2556         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2557         enable dos_paths
2558         ;;
2559     gnu/kfreebsd)
2560         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2561         ;;
2562     gnu)
2563         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2564         ;;
2565     qnx)
2566         add_cppflags -D_QNX_SOURCE
2567         network_extralibs="-lsocket"
2568         ;;
2569     symbian)
2570         SLIBSUF=".dll"
2571         enable dos_paths
2572         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2573         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2574         add_ldflags -Wl,--target1-abs,--no-undefined \
2575                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2576                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2577         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2578                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2579                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2580         ;;
2581     none)
2582         ;;
2583     *)
2584         die "Unknown OS '$target_os'."
2585         ;;
2586 esac
2587
2588 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2589
2590 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2591
2592 set_default $PATHS_LIST
2593
2594 # we need to build at least one lib type
2595 if ! enabled_any static shared; then
2596     cat <<EOF
2597 At least one library type must be built.
2598 Specify --enable-static to build the static libraries or --enable-shared to
2599 build the shared libraries as well. To only build the shared libraries specify
2600 --disable-static in addition to --enable-shared.
2601 EOF
2602     exit 1;
2603 fi
2604
2605 die_license_disabled() {
2606     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2607 }
2608
2609 die_license_disabled gpl libcdio
2610 die_license_disabled gpl libx264
2611 die_license_disabled gpl libxavs
2612 die_license_disabled gpl libxvid
2613 die_license_disabled gpl x11grab
2614
2615 die_license_disabled nonfree libfaac
2616 die_license_disabled nonfree openssl
2617
2618 die_license_disabled version3 libopencore_amrnb
2619 die_license_disabled version3 libopencore_amrwb
2620 die_license_disabled version3 libvo_aacenc
2621 die_license_disabled version3 libvo_amrwbenc
2622
2623 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2624
2625 disabled optimizations || check_cflags -fomit-frame-pointer
2626
2627 enable_pic() {
2628     enable pic
2629     add_cppflags -DPIC
2630     add_cflags   -fPIC
2631     add_asflags  -fPIC
2632 }
2633
2634 enabled pic && enable_pic
2635
2636 check_cc <<EOF || die "Symbol mangling check failed."
2637 int ff_extern;
2638 EOF
2639 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2640 extern_prefix=${sym%%ff_extern*}
2641
2642 check_cc <<EOF && enable inline_asm
2643 void foo(void) { __asm__ volatile ("" ::); }
2644 EOF
2645
2646 _restrict=
2647 for restrict_keyword in restrict __restrict__ __restrict; do
2648     check_cc <<EOF && _restrict=$restrict_keyword && break
2649 void foo(char * $restrict_keyword p);
2650 EOF
2651 done
2652
2653 check_cc <<EOF && enable attribute_packed
2654 struct { int x; } __attribute__((packed)) x;
2655 EOF
2656
2657 check_cc <<EOF && enable attribute_may_alias
2658 union { int x; } __attribute__((may_alias)) x;
2659 EOF
2660
2661 check_cc <<EOF || die "endian test failed"
2662 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2663 EOF
2664 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2665
2666 if enabled alpha; then
2667
2668     check_cflags -mieee
2669
2670 elif enabled arm; then
2671
2672     enabled thumb && check_cflags -mthumb || check_cflags -marm
2673     nogas=die
2674
2675     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2676         enable vfp_args
2677     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2678         case "${cross_prefix:-$cc}" in
2679             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2680             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2681 __asm__ (".eabi_attribute 28, 1");
2682 int main(void) { return 0; }
2683 EOF
2684         esac
2685         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2686     fi
2687
2688     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2689     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2690     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2691     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2692     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2693     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2694     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2695
2696     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2697
2698     enabled_all armv6t2 shared !pic && enable_pic
2699
2700 elif enabled mips; then
2701
2702     check_asm loongson '"dmult.g $1, $2, $3"'
2703     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2704
2705 elif enabled ppc; then
2706
2707     enable local_aligned_8 local_aligned_16
2708
2709     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2710     check_asm ibm_asm   '"add 0, 0, 0"'
2711     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2712     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2713
2714     # AltiVec flags: The FSF version of GCC differs from the Apple version
2715     if enabled altivec; then
2716         nogas=warn
2717         check_cflags -maltivec -mabi=altivec &&
2718         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2719         check_cflags -faltivec
2720
2721         # check if our compiler supports Motorola AltiVec C API
2722         check_cc <<EOF || disable altivec
2723 $inc_altivec_h
2724 int main(void) {
2725     vector signed int v1, v2, v3;
2726     v1 = vec_add(v2,v3);
2727     return 0;
2728 }
2729 EOF
2730
2731         # check if our compiler supports braces for vector declarations
2732         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2733 $inc_altivec_h
2734 int main (void) { (vector int) {1}; return 0; }
2735 EOF
2736     fi
2737
2738 elif enabled sparc; then
2739
2740     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2741         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2742
2743 elif enabled x86; then
2744
2745     enable local_aligned_8 local_aligned_16
2746
2747     # check whether EBP is available on x86
2748     # As 'i' is stored on the stack, this program will crash
2749     # if the base pointer is used to access it because the
2750     # base pointer is cleared in the inline assembly code.
2751     check_exec_crash <<EOF && enable ebp_available
2752     volatile int i=0;
2753     __asm__ volatile (
2754         "xorl %%ebp, %%ebp"
2755     ::: "%ebp");
2756     return i;
2757 EOF
2758
2759     # check whether EBX is available on x86
2760     check_asm ebx_available '""::"b"(0)' &&
2761         check_asm ebx_available '"":::"%ebx"'
2762
2763     # check whether xmm clobbers are supported
2764     check_asm xmm_clobbers '"":::"%xmm0"'
2765
2766     # check whether binutils is new enough to compile SSSE3/MMX2
2767     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2768     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2769
2770     if ! disabled_any asm mmx yasm; then
2771         if check_cmd $yasmexe --version; then
2772             enabled x86_64 && yasm_extra="-m amd64"
2773             yasm_debug="-g dwarf2"
2774         elif check_cmd nasm -v; then
2775             yasmexe=nasm
2776             yasm_debug="-g -F dwarf"
2777             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2778         fi
2779
2780         YASMFLAGS="-f $objformat $yasm_extra"
2781         enabled pic               && append YASMFLAGS "-DPIC"
2782         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2783         case "$objformat" in
2784             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2785         esac
2786
2787         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2788             die "yasm not found, use --disable-yasm for a crippled build"
2789         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2790     fi
2791
2792     case "$cpu" in
2793         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2794             disable fast_clz
2795         ;;
2796     esac
2797
2798 fi
2799
2800 if enabled asm; then
2801     as=${gas:=$as}
2802     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2803         $nogas "GNU assembler not found, install gas-preprocessor"
2804 fi
2805
2806 check_ldflags -Wl,--as-needed
2807
2808 if check_func dlopen; then
2809     ldl=
2810 elif check_func dlopen -ldl; then
2811     ldl=-ldl
2812 fi
2813
2814 if enabled network; then
2815     check_type "sys/types.h sys/socket.h" socklen_t
2816     check_type netdb.h "struct addrinfo"
2817     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2818     check_type netinet/in.h "struct sockaddr_in6"
2819     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2820     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2821     # Prefer arpa/inet.h over winsock2
2822     if check_header arpa/inet.h ; then
2823         check_func closesocket
2824     elif check_header winsock2.h ; then
2825         check_func_headers winsock2.h closesocket -lws2 && \
2826             network_extralibs="-lws2" || \
2827         { check_func_headers winsock2.h closesocket -lws2_32 && \
2828             network_extralibs="-lws2_32"; }
2829         check_type ws2tcpip.h socklen_t
2830         check_type ws2tcpip.h "struct addrinfo"
2831         check_type ws2tcpip.h "struct ipv6_mreq"
2832         check_type ws2tcpip.h "struct sockaddr_in6"
2833         check_type ws2tcpip.h "struct sockaddr_storage"
2834         check_struct winsock2.h "struct sockaddr" sa_len
2835     else
2836         disable network
2837     fi
2838 fi
2839
2840 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2841 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2842
2843 check_func  fcntl
2844 check_func  fork
2845 check_func  getaddrinfo $network_extralibs
2846 check_func  gethrtime
2847 check_func  getrusage
2848 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2849 check_func  inet_aton $network_extralibs
2850 check_func  isatty
2851 check_func  localtime_r
2852 check_func  ${malloc_prefix}memalign            && enable memalign
2853 check_func  mkstemp
2854 check_func  mmap
2855 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2856 check_func  setrlimit
2857 check_func  strerror_r
2858 check_func  strptime
2859 check_func  strtok_r
2860 check_func  sched_getaffinity
2861 check_func  sysctl
2862 check_func_headers io.h setmode
2863 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2864 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2865 check_func_headers windows.h GetProcessTimes
2866 check_func_headers windows.h GetSystemInfo
2867 check_func_headers windows.h MapViewOfFile
2868 check_func_headers windows.h VirtualAlloc
2869
2870 check_header dlfcn.h
2871 check_header dxva2api.h
2872 check_header malloc.h
2873 check_header poll.h
2874 check_header sys/mman.h
2875 check_header sys/param.h
2876 check_header sys/resource.h
2877 check_header sys/select.h
2878 check_header vdpau/vdpau.h
2879 check_header vdpau/vdpau_x11.h
2880 check_header X11/extensions/XvMClib.h
2881
2882 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2883
2884 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2885 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2886
2887 if ! disabled w32threads && ! enabled pthreads; then
2888     check_func _beginthreadex && enable w32threads
2889 fi
2890
2891 # check for some common methods of building with pthread support
2892 # do this before the optional library checks as some of them require pthreads
2893 if ! disabled pthreads && ! enabled w32threads; then
2894     enable pthreads
2895     if check_func pthread_create; then
2896         :
2897     elif check_func pthread_create -pthread; then
2898         add_cflags -pthread
2899         add_extralibs -pthread
2900     elif check_func pthread_create -pthreads; then
2901         add_cflags -pthreads
2902         add_extralibs -pthreads
2903     elif check_func pthread_create -lpthreadGC2; then
2904         add_extralibs -lpthreadGC2
2905     elif ! check_lib pthread.h pthread_create -lpthread; then
2906         disable pthreads
2907     fi
2908 fi
2909
2910 for thread in $THREADS_LIST; do
2911     if enabled $thread; then
2912         test -n "$thread_type" &&
2913             die "ERROR: Only one thread type must be selected." ||
2914             thread_type="$thread"
2915     fi
2916 done
2917
2918 check_lib math.h sin -lm && LIBM="-lm"
2919 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2920
2921 check_mathfunc exp2
2922 check_mathfunc exp2f
2923 check_mathfunc llrint
2924 check_mathfunc llrintf
2925 check_mathfunc log2
2926 check_mathfunc log2f
2927 check_mathfunc lrint
2928 check_mathfunc lrintf
2929 check_mathfunc round
2930 check_mathfunc roundf
2931 check_mathfunc trunc
2932 check_mathfunc truncf
2933
2934 # these are off by default, so fail if requested and not available
2935 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2936 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2937 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2938 enabled libdirac   && require_pkg_config dirac                          \
2939     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2940     "dirac_decoder_init dirac_encoder_init"
2941 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2942 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2943 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2944 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2945 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2946 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2947 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2948 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2949 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2950 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2951 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2952 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2953 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2954 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2955 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2956 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2957 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2958 enabled libvpx     && {
2959     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2960                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2961     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2962                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2963 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2964                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2965                         die "ERROR: libx264 version must be >= 0.118."; }
2966 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2967 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2968 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2969 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2970                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2971                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2972                         die "ERROR: openssl not found"; }
2973
2974 # libdc1394 check
2975 if enabled libdc1394; then
2976     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2977         enable libdc1394_2; } ||
2978     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2979         enable libdc1394_1; } ||
2980     die "ERROR: No version of libdc1394 found "
2981 fi
2982
2983 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2984     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2985     enable sdl &&
2986     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2987 fi
2988
2989 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2990
2991 check_header linux/fb.h
2992 check_header linux/videodev.h
2993 check_header linux/videodev2.h
2994 check_header sys/videoio.h
2995
2996 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2997 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2998 # w32api 3.12 had it defined wrong
2999 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3000
3001 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3002 { check_header dev/bktr/ioctl_meteor.h &&
3003   check_header dev/bktr/ioctl_bt848.h; } ||
3004 { check_header machine/ioctl_meteor.h &&
3005   check_header machine/ioctl_bt848.h; } ||
3006 { check_header dev/video/meteor/ioctl_meteor.h &&
3007   check_header dev/video/bktr/ioctl_bt848.h; } ||
3008 check_header dev/ic/bt8xx.h
3009
3010 check_header sndio.h
3011 check_header sys/soundcard.h
3012 check_header soundcard.h
3013
3014 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3015
3016 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3017
3018 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3019
3020 enabled libcdio &&
3021     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3022
3023 enabled x11grab                         &&
3024 check_header X11/Xlib.h                 &&
3025 check_header X11/extensions/XShm.h      &&
3026 check_header X11/extensions/Xfixes.h    &&
3027 check_func XOpenDisplay -lX11           &&
3028 check_func XShmCreateImage -lX11 -lXext &&
3029 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3030
3031 # check for VDA header
3032 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3033     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3034 fi
3035
3036 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3037 check_cpp_condition \
3038     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3039     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3040       disable vdpau; }
3041 fi
3042
3043 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3044
3045 # add some useful compiler flags if supported
3046 check_cflags -Wdeclaration-after-statement
3047 check_cflags -Wall
3048 check_cflags -Wno-parentheses
3049 check_cflags -Wno-switch
3050 check_cflags -Wno-format-zero-length
3051 check_cflags -Wdisabled-optimization
3052 check_cflags -Wpointer-arith
3053 check_cflags -Wredundant-decls
3054 check_cflags -Wno-pointer-sign
3055 check_cflags -Wcast-qual
3056 check_cflags -Wwrite-strings
3057 check_cflags -Wtype-limits
3058 check_cflags -Wundef
3059 check_cflags -Wmissing-prototypes
3060 check_cflags -Wstrict-prototypes
3061 enabled extra_warnings && check_cflags -Winline
3062
3063 # add some linker flags
3064 check_ldflags -Wl,--warn-common
3065 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3066 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3067
3068 echo "X{};" > $TMPV
3069 if test_ldflags -Wl,--version-script,$TMPV; then
3070     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3071     check_cc <<EOF && enable symver_asm_label
3072 void ff_foo(void) __asm__ ("av_foo@VERSION");
3073 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3074 EOF
3075     check_cc <<EOF && enable symver_gnu_asm
3076 __asm__(".symver ff_foo,av_foo@VERSION");
3077 void ff_foo(void) {}
3078 EOF
3079 fi
3080
3081 if [ -n "$optflags" ]; then
3082     add_cflags $optflags
3083 elif enabled small; then
3084     add_cflags $size_cflags
3085 elif enabled optimizations; then
3086     add_cflags $speed_cflags
3087 else
3088     add_cflags $noopt_cflags
3089 fi
3090 check_cflags -fno-math-errno
3091 check_cflags -fno-signed-zeros
3092
3093 if enabled icc; then
3094     # Just warnings, no remarks
3095     check_cflags -w1
3096     # -wd: Disable following warnings
3097     # 144, 167, 556: -Wno-pointer-sign
3098     # 1292: attribute "foo" ignored
3099     # 10006: ignoring unknown option -fno-signed-zeros
3100     # 10148: ignoring unknown option -Wno-parentheses
3101     # 10156: ignoring option '-W'; no argument required
3102     check_cflags -wd144,167,556,1292,10006,10148,10156
3103     # 11030: Warning unknown option --as-needed
3104     # 10156: ignoring option '-export'; no argument required
3105     check_ldflags -wd10156,11030
3106     # Allow to compile with optimizations
3107     check_ldflags -march=$cpu
3108     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3109     enable ebp_available
3110     if enabled x86_32; then
3111         test ${icc_version%%.*} -ge 11 && \
3112             check_cflags -falign-stack=maintain-16-byte || \
3113             disable aligned_stack
3114     fi
3115 elif enabled ccc; then
3116     # disable some annoying warnings
3117     add_cflags -msg_disable cvtu32to64
3118     add_cflags -msg_disable embedcomment
3119     add_cflags -msg_disable needconstext
3120     add_cflags -msg_disable nomainieee
3121     add_cflags -msg_disable ptrmismatch1
3122     add_cflags -msg_disable unreachcode
3123 elif enabled gcc; then
3124     check_cflags -fno-tree-vectorize
3125     check_cflags -Werror=implicit-function-declaration
3126     check_cflags -Werror=missing-prototypes
3127     check_cflags -Werror=declaration-after-statement
3128 elif enabled llvm_gcc; then
3129     check_cflags -mllvm -stack-alignment=16
3130 elif enabled clang; then
3131     check_cflags -mllvm -stack-alignment=16
3132     check_cflags -Qunused-arguments
3133 elif enabled armcc; then
3134     # 2523: use of inline assembler is deprecated
3135     add_cflags -W${armcc_opt},--diag_suppress=2523
3136     add_cflags -W${armcc_opt},--diag_suppress=1207
3137     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3138     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3139     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3140     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3141 elif enabled tms470; then
3142     add_cflags -pds=824 -pds=837
3143 elif enabled pathscale; then
3144     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3145 fi
3146
3147 enabled_any $THREADS_LIST      && enable threads
3148
3149 check_deps $CONFIG_LIST       \
3150            $CONFIG_EXTRA      \
3151            $HAVE_LIST         \
3152            $ALL_COMPONENTS    \
3153            $ALL_TESTS         \
3154
3155 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3156
3157 ! enabled_any memalign posix_memalign malloc_aligned &&
3158     enabled_any $need_memalign && enable memalign_hack
3159
3160 echo "install prefix            $prefix"
3161 echo "source path               $source_path"
3162 echo "C compiler                $cc"
3163 echo "ARCH                      $arch ($cpu)"
3164 if test "$build_suffix" != ""; then
3165     echo "build suffix              $build_suffix"
3166 fi
3167 if test "$extra_version" != ""; then
3168     echo "version string suffix     $extra_version"
3169 fi
3170 echo "big-endian                ${bigendian-no}"
3171 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3172 if enabled x86; then
3173     echo "${yasmexe}                      ${yasm-no}"
3174     echo "MMX enabled               ${mmx-no}"
3175     echo "MMX2 enabled              ${mmx2-no}"
3176     echo "3DNow! enabled            ${amd3dnow-no}"
3177     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3178     echo "SSE enabled               ${sse-no}"
3179     echo "SSSE3 enabled             ${ssse3-no}"
3180     echo "AVX enabled               ${avx-no}"
3181     echo "CMOV enabled              ${cmov-no}"
3182     echo "CMOV is fast              ${fast_cmov-no}"
3183     echo "EBX available             ${ebx_available-no}"
3184     echo "EBP available             ${ebp_available-no}"
3185 fi
3186 if enabled arm; then
3187     echo "ARMv5TE enabled           ${armv5te-no}"
3188     echo "ARMv6 enabled             ${armv6-no}"
3189     echo "ARMv6T2 enabled           ${armv6t2-no}"
3190     echo "ARM VFP enabled           ${armvfp-no}"
3191     echo "IWMMXT enabled            ${iwmmxt-no}"
3192     echo "NEON enabled              ${neon-no}"
3193 fi
3194 if enabled mips; then
3195     echo "MMI enabled               ${mmi-no}"
3196 fi
3197 if enabled ppc; then
3198     echo "AltiVec enabled           ${altivec-no}"
3199     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3200     echo "dcbzl available           ${dcbzl-no}"
3201 fi
3202 if enabled sparc; then
3203     echo "VIS enabled               ${vis-no}"
3204 fi
3205 echo "debug symbols             ${debug-no}"
3206 echo "optimize for size         ${small-no}"
3207 echo "optimizations             ${optimizations-no}"
3208 echo "static                    ${static-no}"
3209 echo "shared                    ${shared-no}"
3210 echo "postprocessing support    ${postproc-no}"
3211 echo "new filter support        ${avfilter-no}"
3212 echo "network support           ${network-no}"
3213 echo "threading support         ${thread_type-no}"
3214 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3215 echo "SDL support               ${sdl-no}"
3216 echo "Sun medialib support      ${mlib-no}"
3217 echo "libdxva2 enabled          ${dxva2-no}"
3218 echo "libva enabled             ${vaapi-no}"
3219 echo "libvdpau enabled          ${vdpau-no}"
3220 echo "AVISynth enabled          ${avisynth-no}"
3221 echo "frei0r enabled            ${frei0r-no}"
3222 echo "gnutls enabled            ${gnutls-no}"
3223 echo "libcdio support           ${libcdio-no}"
3224 echo "libdc1394 support         ${libdc1394-no}"
3225 echo "libdirac enabled          ${libdirac-no}"
3226 echo "libfaac enabled           ${libfaac-no}"
3227 echo "libgsm enabled            ${libgsm-no}"
3228 echo "libmp3lame enabled        ${libmp3lame-no}"
3229 echo "libnut enabled            ${libnut-no}"
3230 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3231 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3232 echo "libopencv support         ${libopencv-no}"
3233 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3234 echo "libpulse enabled          ${libpulse-no}"
3235 echo "librtmp enabled           ${librtmp-no}"
3236 echo "libschroedinger enabled   ${libschroedinger-no}"
3237 echo "libspeex enabled          ${libspeex-no}"
3238 echo "libtheora enabled         ${libtheora-no}"
3239 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3240 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3241 echo "libvorbis enabled         ${libvorbis-no}"
3242 echo "libvpx enabled            ${libvpx-no}"
3243 echo "libx264 enabled           ${libx264-no}"
3244 echo "libxavs enabled           ${libxavs-no}"
3245 echo "libxvid enabled           ${libxvid-no}"
3246 echo "openssl enabled           ${openssl-no}"
3247 echo "zlib enabled              ${zlib-no}"
3248 echo "bzlib enabled             ${bzlib-no}"
3249 echo
3250
3251 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3252     echo "Enabled ${type}s:"
3253     eval list=\$$(toupper $type)_LIST
3254     print_enabled '_*' $list | sort | pr -r -3 -t
3255     echo
3256 done
3257
3258 license="LGPL version 2.1 or later"
3259 if enabled nonfree; then
3260     license="nonfree and unredistributable"
3261 elif enabled gplv3; then
3262     license="GPL version 3 or later"
3263 elif enabled lgplv3; then
3264     license="LGPL version 3 or later"
3265 elif enabled gpl; then
3266     license="GPL version 2 or later"
3267 fi
3268
3269 echo "License: $license"
3270
3271 echo "Creating config.mak and config.h..."
3272
3273 test -e Makefile || $ln_s "$source_path/Makefile" .
3274
3275 config_files="$TMPH config.mak"
3276
3277 cat > config.mak <<EOF
3278 # Automatically generated by configure - do not modify!
3279 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3280 prefix=$prefix
3281 LIBDIR=\$(DESTDIR)$libdir
3282 SHLIBDIR=\$(DESTDIR)$shlibdir
3283 INCDIR=\$(DESTDIR)$incdir
3284 BINDIR=\$(DESTDIR)$bindir
3285 DATADIR=\$(DESTDIR)$datadir
3286 MANDIR=\$(DESTDIR)$mandir
3287 SRC_PATH=$source_path
3288 CC_IDENT=$cc_ident
3289 ARCH=$arch
3290 CC=$cc
3291 AS=$as
3292 LD=$ld
3293 DEPCC=$dep_cc
3294 YASM=$yasmexe
3295 YASMDEP=$yasmexe
3296 AR=$ar
3297 RANLIB=$ranlib
3298 LN_S=$ln_s
3299 CPPFLAGS=$CPPFLAGS
3300 CFLAGS=$CFLAGS
3301 ASFLAGS=$ASFLAGS
3302 AS_O=$CC_O
3303 CC_O=$CC_O
3304 DLLTOOL=$dlltool
3305 LDFLAGS=$LDFLAGS
3306 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3307 SHFLAGS=$SHFLAGS
3308 YASMFLAGS=$YASMFLAGS
3309 BUILDSUF=$build_suffix
3310 FULLNAME=$FULLNAME
3311 LIBPREF=$LIBPREF
3312 LIBSUF=$LIBSUF
3313 LIBNAME=$LIBNAME
3314 SLIBPREF=$SLIBPREF
3315 SLIBSUF=$SLIBSUF
3316 EXESUF=$EXESUF
3317 EXTRA_VERSION=$extra_version
3318 DEPFLAGS=$DEPFLAGS
3319 CCDEP=$CCDEP
3320 ASDEP=$ASDEP
3321 CC_DEPFLAGS=$CC_DEPFLAGS
3322 AS_DEPFLAGS=$AS_DEPFLAGS
3323 HOSTCC=$host_cc
3324 HOSTCFLAGS=$host_cflags
3325 HOSTEXESUF=$HOSTEXESUF
3326 HOSTLDFLAGS=$host_ldflags
3327 HOSTLIBS=$host_libs
3328 TARGET_EXEC=$target_exec
3329 TARGET_PATH=$target_path
3330 SDL_LIBS=$sdl_libs
3331 SDL_CFLAGS=$sdl_cflags
3332 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3333 EXTRALIBS=$extralibs
3334 INSTALL=install
3335 LIBTARGET=${LIBTARGET}
3336 SLIBNAME=${SLIBNAME}
3337 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3338 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3339 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3340 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3341 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3342 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3343 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3344 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3345 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3346 EOF
3347
3348 get_version(){
3349     name=$1
3350     file=$source_path/$2
3351     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3352     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3353     lcname=$(tolower $name)
3354     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3355     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3356 }
3357
3358 get_version LIBAVCODEC  libavcodec/version.h
3359 get_version LIBAVDEVICE libavdevice/avdevice.h
3360 get_version LIBAVFILTER libavfilter/avfilter.h
3361 get_version LIBAVFORMAT libavformat/version.h
3362 get_version LIBAVUTIL   libavutil/avutil.h
3363 get_version LIBPOSTPROC libpostproc/postprocess.h
3364 get_version LIBSWSCALE  libswscale/swscale.h
3365
3366 cat > $TMPH <<EOF
3367 /* Automatically generated by configure - do not modify! */
3368 #ifndef LIBAV_CONFIG_H
3369 #define LIBAV_CONFIG_H
3370 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3371 #define LIBAV_LICENSE "$(c_escape $license)"
3372 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3373 #define CC_TYPE "$cc_type"
3374 #define CC_VERSION $cc_version
3375 #define restrict $_restrict
3376 #define EXTERN_PREFIX "${extern_prefix}"
3377 #define EXTERN_ASM ${extern_prefix}
3378 #define SLIBSUF "$SLIBSUF"
3379 EOF
3380
3381 test -n "$malloc_prefix" &&
3382     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3383
3384 if enabled small || disabled optimizations; then
3385     echo "#undef  av_always_inline"  >> $TMPH
3386     if enabled small; then
3387         echo "#define av_always_inline inline"  >> $TMPH
3388     else
3389         echo "#define av_always_inline av_unused"  >> $TMPH
3390     fi
3391 fi
3392
3393 if enabled yasm; then
3394     append config_files $TMPASM
3395     printf '' >$TMPASM
3396 fi
3397
3398 print_config ARCH_   "$config_files" $ARCH_LIST
3399 print_config HAVE_   "$config_files" $HAVE_LIST
3400 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3401                                      $CONFIG_EXTRA      \
3402                                      $ALL_COMPONENTS    \
3403
3404 cat >>config.mak <<EOF
3405 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3406 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3407 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3408 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3409 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3410 EOF
3411
3412 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3413
3414 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3415 cp_if_changed $TMPH config.h
3416 touch .config
3417
3418 enabled yasm && cp_if_changed $TMPASM config.asm
3419
3420 cat > $TMPH <<EOF
3421 /* Generated by ffconf */
3422 #ifndef AVUTIL_AVCONFIG_H
3423 #define AVUTIL_AVCONFIG_H
3424 EOF
3425
3426 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3427
3428 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3429
3430 cp_if_changed $TMPH libavutil/avconfig.h
3431
3432 test -n "$WARNINGS" && printf "\n$WARNINGS"
3433
3434 # build pkg-config files
3435
3436 pkgconfig_generate(){
3437 name=$1
3438 shortname=${name#lib}${build_suffix}
3439 comment=$2
3440 version=$3
3441 libs=$4
3442 requires=$5
3443 enabled ${name#lib} || return 0
3444 mkdir -p $name
3445 cat <<EOF > $name/$name.pc
3446 prefix=$prefix
3447 exec_prefix=\${prefix}
3448 libdir=$libdir
3449 includedir=$incdir
3450
3451 Name: $name
3452 Description: $comment
3453 Version: $version
3454 Requires: $(enabled shared || echo $requires)
3455 Requires.private: $(enabled shared && echo $requires)
3456 Conflicts:
3457 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3458 Libs.private: $(enabled shared && echo $libs)
3459 Cflags: -I\${includedir}
3460 EOF
3461 cat <<EOF > $name/$name-uninstalled.pc
3462 prefix=
3463 exec_prefix=
3464 libdir=\${pcfiledir}
3465 includedir=${source_path}
3466
3467 Name: $name
3468 Description: $comment
3469 Version: $version
3470 Requires: $requires
3471 Conflicts:
3472 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3473 Cflags: -I\${includedir}
3474 EOF
3475 }
3476
3477 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3478 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3479 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3480 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3481 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3482 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3483 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"