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[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     GetProcessAffinityMask
1088     GetProcessMemoryInfo
1089     GetProcessTimes
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     struct_v4l2_frmivalenum_discrete
1139     symver
1140     symver_asm_label
1141     symver_gnu_asm
1142     sysconf
1143     sysctl
1144     sys_mman_h
1145     sys_param_h
1146     sys_resource_h
1147     sys_select_h
1148     sys_soundcard_h
1149     sys_videoio_h
1150     threads
1151     trunc
1152     truncf
1153     vfp_args
1154     VirtualAlloc
1155     winsock2_h
1156     xform_asm
1157     xmm_clobbers
1158     yasm
1159 "
1160
1161 # options emitted with CONFIG_ prefix but not available on command line
1162 CONFIG_EXTRA="
1163     avutil
1164     gplv3
1165     lgplv3
1166 "
1167
1168 CMDLINE_SELECT="
1169     $ARCH_EXT_LIST
1170     $CONFIG_LIST
1171     $THREADS_LIST
1172     asm
1173     cross_compile
1174     debug
1175     extra_warnings
1176     logging
1177     optimizations
1178     symver
1179     yasm
1180 "
1181
1182 PATHS_LIST='
1183     bindir
1184     datadir
1185     incdir
1186     libdir
1187     mandir
1188     prefix
1189     shlibdir
1190 '
1191
1192 CMDLINE_SET="
1193     $PATHS_LIST
1194     ar
1195     arch
1196     as
1197     build_suffix
1198     cc
1199     cpu
1200     cross_prefix
1201     dep_cc
1202     extra_version
1203     host_cc
1204     host_cflags
1205     host_ldflags
1206     host_libs
1207     host_os
1208     ld
1209     logfile
1210     malloc_prefix
1211     nm
1212     optflags
1213     pkg_config
1214     samples
1215     sysinclude
1216     sysroot
1217     target_exec
1218     target_os
1219     target_path
1220 "
1221
1222 CMDLINE_APPEND="
1223     extra_cflags
1224 "
1225
1226 # code dependency declarations
1227
1228 # architecture extensions
1229
1230 armv5te_deps="arm"
1231 armv6_deps="arm"
1232 armv6t2_deps="arm"
1233 armvfp_deps="arm"
1234 iwmmxt_deps="arm"
1235 neon_deps="arm"
1236 vfpv3_deps="armvfp"
1237
1238 mmi_deps="mips"
1239
1240 altivec_deps="ppc"
1241 ppc4xx_deps="ppc"
1242
1243 vis_deps="sparc"
1244
1245 x86_64_suggest="cmov fast_cmov"
1246 amd3dnow_deps="mmx"
1247 amd3dnowext_deps="amd3dnow"
1248 mmx_deps="x86"
1249 mmx2_deps="mmx"
1250 sse_deps="mmx"
1251 ssse3_deps="sse"
1252 avx_deps="ssse3"
1253
1254 aligned_stack_if_any="ppc x86"
1255 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1256 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1257 fast_unaligned_if_any="armv6 ppc x86"
1258
1259 inline_asm_deps="!tms470"
1260 need_memalign="altivec neon sse"
1261
1262 symver_if_any="symver_asm_label symver_gnu_asm"
1263
1264 # subsystems
1265 dct_select="rdft"
1266 mdct_select="fft"
1267 rdft_select="fft"
1268 mpegaudiodsp_select="dct"
1269
1270 # decoders / encoders / hardware accelerators
1271 aac_decoder_select="mdct sinewin"
1272 aac_encoder_select="mdct sinewin"
1273 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1274 ac3_decoder_select="mdct ac3dsp ac3_parser"
1275 ac3_encoder_select="mdct ac3dsp"
1276 ac3_fixed_encoder_select="mdct ac3dsp"
1277 alac_encoder_select="lpc"
1278 amrnb_decoder_select="lsp"
1279 amrwb_decoder_select="lsp"
1280 atrac1_decoder_select="mdct sinewin"
1281 atrac3_decoder_select="mdct"
1282 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1283 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1284 cavs_decoder_select="golomb"
1285 cook_decoder_select="mdct sinewin"
1286 cscd_decoder_suggest="zlib"
1287 dca_decoder_select="mdct"
1288 dnxhd_encoder_select="aandct"
1289 dxa_decoder_select="zlib"
1290 eac3_decoder_select="ac3_decoder"
1291 eac3_encoder_select="mdct ac3dsp"
1292 eamad_decoder_select="aandct"
1293 eatgq_decoder_select="aandct"
1294 eatqi_decoder_select="aandct"
1295 ffv1_decoder_select="golomb"
1296 flac_decoder_select="golomb"
1297 flac_encoder_select="golomb lpc"
1298 flashsv_decoder_select="zlib"
1299 flashsv_encoder_select="zlib"
1300 flashsv2_decoder_select="zlib"
1301 flv_decoder_select="h263_decoder"
1302 flv_encoder_select="h263_encoder"
1303 fraps_decoder_select="huffman"
1304 h261_encoder_select="aandct"
1305 h263_decoder_select="h263_parser"
1306 h263_encoder_select="aandct"
1307 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1308 h263i_decoder_select="h263_decoder"
1309 h263p_encoder_select="h263_encoder"
1310 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1311 h264_dxva2_hwaccel_deps="dxva2api_h"
1312 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1313 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1314 h264_vda_hwaccel_select="vda h264_decoder"
1315 h264_vdpau_decoder_select="vdpau h264_decoder"
1316 imc_decoder_select="fft mdct sinewin"
1317 jpegls_decoder_select="golomb"
1318 jpegls_encoder_select="golomb"
1319 ljpeg_encoder_select="aandct"
1320 loco_decoder_select="golomb"
1321 mjpeg_encoder_select="aandct"
1322 mlp_decoder_select="mlp_parser"
1323 mp1_decoder_select="mpegaudiodsp"
1324 mp1float_decoder_select="mpegaudiodsp"
1325 mp2_decoder_select="mpegaudiodsp"
1326 mp2float_decoder_select="mpegaudiodsp"
1327 mp3_decoder_select="mpegaudiodsp"
1328 mp3adu_decoder_select="mpegaudiodsp"
1329 mp3adufloat_decoder_select="mpegaudiodsp"
1330 mp3float_decoder_select="mpegaudiodsp"
1331 mp3on4_decoder_select="mpegaudiodsp"
1332 mp3on4float_decoder_select="mpegaudiodsp"
1333 mpc7_decoder_select="mpegaudiodsp"
1334 mpc8_decoder_select="mpegaudiodsp"
1335 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1336 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1337 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1338 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1339 mpeg1video_encoder_select="aandct"
1340 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1341 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1342 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1343 mpeg2video_encoder_select="aandct"
1344 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1345 mpeg4_encoder_select="h263_encoder"
1346 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1347 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1348 msmpeg4v1_decoder_select="h263_decoder"
1349 msmpeg4v1_encoder_select="h263_encoder"
1350 msmpeg4v2_decoder_select="h263_decoder"
1351 msmpeg4v2_encoder_select="h263_encoder"
1352 msmpeg4v3_decoder_select="h263_decoder"
1353 msmpeg4v3_encoder_select="h263_encoder"
1354 nellymoser_decoder_select="mdct sinewin"
1355 nellymoser_encoder_select="mdct sinewin"
1356 png_decoder_select="zlib"
1357 png_encoder_select="zlib"
1358 qcelp_decoder_select="lsp"
1359 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1360 ra_144_encoder_select="lpc"
1361 rv10_decoder_select="h263_decoder"
1362 rv10_encoder_select="h263_encoder"
1363 rv20_decoder_select="h263_decoder"
1364 rv20_encoder_select="h263_encoder"
1365 rv30_decoder_select="golomb h264chroma h264pred"
1366 rv40_decoder_select="golomb h264chroma h264pred"
1367 shorten_decoder_select="golomb"
1368 sipr_decoder_select="lsp"
1369 snow_decoder_select="dwt"
1370 snow_encoder_select="aandct dwt"
1371 svq1_encoder_select="aandct"
1372 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1373 svq3_decoder_suggest="zlib"
1374 theora_decoder_select="vp3_decoder"
1375 tiff_decoder_suggest="zlib"
1376 tiff_encoder_suggest="zlib"
1377 truehd_decoder_select="mlp_decoder"
1378 tscc_decoder_select="zlib"
1379 twinvq_decoder_select="mdct lsp sinewin"
1380 vc1_decoder_select="h263_decoder h264chroma"
1381 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1382 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1383 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1384 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1385 vc1image_decoder_select="vc1_decoder"
1386 vorbis_decoder_select="mdct"
1387 vorbis_encoder_select="mdct"
1388 vp6_decoder_select="huffman"
1389 vp6a_decoder_select="vp6_decoder"
1390 vp6f_decoder_select="vp6_decoder"
1391 vp8_decoder_select="h264pred"
1392 wmapro_decoder_select="mdct sinewin"
1393 wmav1_decoder_select="mdct sinewin"
1394 wmav1_encoder_select="mdct sinewin"
1395 wmav2_decoder_select="mdct sinewin"
1396 wmav2_encoder_select="mdct sinewin"
1397 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1398 wmv1_decoder_select="h263_decoder"
1399 wmv1_encoder_select="h263_encoder"
1400 wmv2_decoder_select="h263_decoder"
1401 wmv2_encoder_select="h263_encoder"
1402 wmv3_decoder_select="vc1_decoder"
1403 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1404 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1405 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1406 wmv3image_decoder_select="wmv3_decoder"
1407 zlib_decoder_select="zlib"
1408 zlib_encoder_select="zlib"
1409 zmbv_decoder_select="zlib"
1410 zmbv_encoder_select="zlib"
1411
1412 vaapi_deps="va_va_h"
1413 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1414 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1415
1416 # parsers
1417 h264_parser_select="golomb h264chroma h264dsp h264pred"
1418
1419 # external libraries
1420 libdirac_decoder_deps="libdirac !libschroedinger"
1421 libdirac_encoder_deps="libdirac"
1422 libfaac_encoder_deps="libfaac"
1423 libgsm_decoder_deps="libgsm"
1424 libgsm_encoder_deps="libgsm"
1425 libgsm_ms_decoder_deps="libgsm"
1426 libgsm_ms_encoder_deps="libgsm"
1427 libmp3lame_encoder_deps="libmp3lame"
1428 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1429 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1430 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1431 libopenjpeg_decoder_deps="libopenjpeg"
1432 libschroedinger_decoder_deps="libschroedinger"
1433 libschroedinger_encoder_deps="libschroedinger"
1434 libspeex_decoder_deps="libspeex"
1435 libspeex_encoder_deps="libspeex"
1436 libtheora_encoder_deps="libtheora"
1437 libvo_aacenc_encoder_deps="libvo_aacenc"
1438 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1439 libvorbis_encoder_deps="libvorbis"
1440 libvpx_decoder_deps="libvpx"
1441 libvpx_encoder_deps="libvpx"
1442 libx264_encoder_deps="libx264"
1443 libxavs_encoder_deps="libxavs"
1444 libxvid_encoder_deps="libxvid"
1445
1446 # demuxers / muxers
1447 ac3_demuxer_select="ac3_parser"
1448 asf_stream_muxer_select="asf_muxer"
1449 avisynth_demuxer_deps="avisynth"
1450 dirac_demuxer_select="dirac_parser"
1451 eac3_demuxer_select="ac3_parser"
1452 flac_demuxer_select="flac_parser"
1453 ipod_muxer_select="mov_muxer"
1454 libnut_demuxer_deps="libnut"
1455 libnut_muxer_deps="libnut"
1456 matroska_audio_muxer_select="matroska_muxer"
1457 matroska_demuxer_suggest="zlib bzlib"
1458 mov_demuxer_suggest="zlib"
1459 mp3_demuxer_select="mpegaudio_parser"
1460 mp4_muxer_select="mov_muxer"
1461 mpegtsraw_demuxer_select="mpegts_demuxer"
1462 mxf_d10_muxer_select="mxf_muxer"
1463 ogg_demuxer_select="golomb"
1464 psp_muxer_select="mov_muxer"
1465 rtp_demuxer_select="sdp_demuxer"
1466 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1467 rtsp_demuxer_select="http_protocol rtpdec"
1468 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1469 sap_demuxer_select="sdp_demuxer"
1470 sap_muxer_select="rtp_muxer rtp_protocol"
1471 sdp_demuxer_select="rtpdec"
1472 spdif_muxer_select="aac_parser"
1473 tg2_muxer_select="mov_muxer"
1474 tgp_muxer_select="mov_muxer"
1475 w64_demuxer_deps="wav_demuxer"
1476
1477 # indevs / outdevs
1478 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1479 alsa_outdev_deps="alsa_asoundlib_h"
1480 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1481 dv1394_indev_deps="dv1394 dv_demuxer"
1482 fbdev_indev_deps="linux_fb_h"
1483 jack_indev_deps="jack_jack_h"
1484 libcdio_indev_deps="libcdio"
1485 libdc1394_indev_deps="libdc1394"
1486 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1487 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1488 pulse_indev_deps="libpulse"
1489 sndio_indev_deps="sndio_h"
1490 sndio_outdev_deps="sndio_h"
1491 v4l_indev_deps="linux_videodev_h"
1492 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1493 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1494 vfwcap_indev_extralibs="-lavicap32"
1495 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1496 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1497
1498 # protocols
1499 gopher_protocol_deps="network"
1500 httpproxy_protocol_deps="network"
1501 httpproxy_protocol_select="tcp_protocol"
1502 http_protocol_deps="network"
1503 http_protocol_select="tcp_protocol"
1504 https_protocol_select="tls_protocol"
1505 mmsh_protocol_select="http_protocol"
1506 mmst_protocol_deps="network"
1507 rtmp_protocol_select="tcp_protocol"
1508 rtp_protocol_select="udp_protocol"
1509 tcp_protocol_deps="network"
1510 tls_protocol_deps_any="openssl gnutls"
1511 tls_protocol_select="tcp_protocol"
1512 udp_protocol_deps="network"
1513
1514 # filters
1515 blackframe_filter_deps="gpl"
1516 boxblur_filter_deps="gpl"
1517 cropdetect_filter_deps="gpl"
1518 delogo_filter_deps="gpl"
1519 drawtext_filter_deps="libfreetype"
1520 frei0r_filter_deps="frei0r dlopen strtok_r"
1521 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1522 hqdn3d_filter_deps="gpl"
1523 ocv_filter_deps="libopencv"
1524 scale_filter_deps="swscale"
1525 yadif_filter_deps="gpl"
1526
1527 # libraries
1528 avdevice_deps="avcodec avformat"
1529 avformat_deps="avcodec"
1530 postproc_deps="gpl"
1531
1532 # programs
1533 avconv_deps="avcodec avformat swscale"
1534 avplay_deps="avcodec avformat swscale sdl"
1535 avplay_select="rdft"
1536 avprobe_deps="avcodec avformat"
1537 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1538 avserver_extralibs='$ldl'
1539 ffmpeg_deps="avcodec avformat swscale"
1540
1541 doc_deps="texi2html"
1542
1543 # tests
1544
1545 test_deps(){
1546     suf1=$1
1547     suf2=$2
1548     shift 2
1549     for v; do
1550         dep=${v%=*}
1551         tests=${v#*=}
1552         for name in ${tests}; do
1553             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1554         done
1555     done
1556 }
1557
1558 mxf_d10_test_deps="avfilter"
1559 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1560
1561 test_deps _encoder _decoder                                             \
1562     adpcm_ima_qt                                                        \
1563     adpcm_ima_wav                                                       \
1564     adpcm_ms                                                            \
1565     adpcm_swf                                                           \
1566     adpcm_yamaha=adpcm_yam                                              \
1567     alac                                                                \
1568     asv1                                                                \
1569     asv2                                                                \
1570     bmp                                                                 \
1571     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1572     dvvideo="dv dv_411 dv50"                                            \
1573     ffv1                                                                \
1574     flac                                                                \
1575     flashsv                                                             \
1576     flv                                                                 \
1577     adpcm_g726=g726                                                     \
1578     gif                                                                 \
1579     h261                                                                \
1580     h263="h263 h263p"                                                   \
1581     huffyuv                                                             \
1582     jpegls                                                              \
1583     mjpeg="jpg mjpeg ljpeg"                                             \
1584     mp2                                                                 \
1585     mpeg1video="mpeg mpeg1b"                                            \
1586     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1587     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1588     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1589     mpeg4="mpeg4thread error rc"                                        \
1590     msmpeg4v3=msmpeg4                                                   \
1591     msmpeg4v2                                                           \
1592     pbm=pbmpipe                                                         \
1593     pcx                                                                 \
1594     pgm="pgm pgmpipe"                                                   \
1595     png                                                                 \
1596     ppm="ppm ppmpipe"                                                   \
1597     rawvideo="rgb yuv"                                                  \
1598     roq                                                                 \
1599     rv10                                                                \
1600     rv20                                                                \
1601     sgi                                                                 \
1602     snow="snow snowll"                                                  \
1603     svq1                                                                \
1604     targa=tga                                                           \
1605     tiff                                                                \
1606     wmav1                                                               \
1607     wmav2                                                               \
1608     wmv1                                                                \
1609     wmv2                                                                \
1610
1611 test_deps _muxer _demuxer                                               \
1612     aiff                                                                \
1613     pcm_alaw=alaw                                                       \
1614     asf                                                                 \
1615     au                                                                  \
1616     avi                                                                 \
1617     dv=dv_fmt                                                           \
1618     ffm                                                                 \
1619     flv=flv_fmt                                                         \
1620     gxf                                                                 \
1621     matroska=mkv                                                        \
1622     mmf                                                                 \
1623     mov                                                                 \
1624     pcm_mulaw=mulaw                                                     \
1625     mxf="mxf mxf_d10"                                                   \
1626     nut                                                                 \
1627     ogg                                                                 \
1628     rawvideo=pixfmt                                                     \
1629     rm                                                                  \
1630     swf                                                                 \
1631     mpegts=ts                                                           \
1632     voc                                                                 \
1633     wav                                                                 \
1634     yuv4mpegpipe=yuv4mpeg                                               \
1635
1636 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1637 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1638
1639 # default parameters
1640
1641 logfile="config.log"
1642
1643 # installation paths
1644 prefix_default="/usr/local"
1645 bindir_default='${prefix}/bin'
1646 datadir_default='${prefix}/share/avconv'
1647 incdir_default='${prefix}/include'
1648 libdir_default='${prefix}/lib'
1649 mandir_default='${prefix}/share/man'
1650 shlibdir_default="$libdir_default"
1651
1652 # toolchain
1653 ar_default="ar"
1654 cc_default="gcc"
1655 cc_version=\"unknown\"
1656 host_cc_default="gcc"
1657 ln_s="ln -sf"
1658 nm_default="nm"
1659 objformat="elf"
1660 pkg_config_default=pkg-config
1661 ranlib="ranlib"
1662 yasmexe="yasm"
1663
1664 nm_opts='-g'
1665 nogas=":"
1666
1667 # machine
1668 arch_default=$(uname -m)
1669 cpu="generic"
1670
1671 # OS
1672 target_os_default=$(tolower $(uname -s))
1673 host_os=$target_os_default
1674
1675 # configurable options
1676 enable $PROGRAM_LIST
1677
1678 enable avcodec
1679 enable avdevice
1680 enable avfilter
1681 enable avformat
1682 enable avutil
1683 enable postproc
1684 enable swscale
1685
1686 enable asm
1687 enable debug
1688 enable doc
1689 enable fastdiv
1690 enable network
1691 enable optimizations
1692 enable safe_bitstream_reader
1693 enable static
1694 enable swscale_alpha
1695
1696 # build settings
1697 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1698 AVSERVERLDFLAGS=-Wl,-E
1699 LIBPREF="lib"
1700 LIBSUF=".a"
1701 FULLNAME='$(NAME)$(BUILDSUF)'
1702 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1703 SLIBPREF="lib"
1704 SLIBSUF=".so"
1705 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1706 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1707 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1708 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1709 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1710 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1711
1712 AS_O='-o $@'
1713 CC_O='-o $@'
1714
1715 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1716 host_libs='-lm'
1717
1718 target_path='$(CURDIR)'
1719
1720 # since the object filename is not given with the -MM flag, the compiler
1721 # is only able to print the basename, and we must add the path ourselves
1722 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1723 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1724
1725 # find source path
1726 if test -f configure; then
1727     source_path=.
1728 else
1729     source_path=$(cd $(dirname "$0"); pwd)
1730     echo "$source_path" | grep -q '[[:blank:]]' &&
1731         die "Out of tree builds are impossible with whitespace in source path."
1732     test -e "$source_path/config.h" &&
1733         die "Out of tree builds are impossible with config.h in source dir."
1734 fi
1735
1736 for v in "$@"; do
1737     r=${v#*=}
1738     l=${v%"$r"}
1739     r=$(sh_quote "$r")
1740     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1741 done
1742
1743 find_things(){
1744     thing=$1
1745     pattern=$2
1746     file=$source_path/$3
1747     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1748 }
1749
1750 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1751 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1752 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1753 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1754 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1755 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1756 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1757 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1758 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1759 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1760 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1761
1762 ALL_COMPONENTS="
1763     $BSF_LIST
1764     $DECODER_LIST
1765     $DEMUXER_LIST
1766     $ENCODER_LIST
1767     $FILTER_LIST
1768     $HWACCEL_LIST
1769     $INDEV_LIST
1770     $MUXER_LIST
1771     $OUTDEV_LIST
1772     $PARSER_LIST
1773     $PROTOCOL_LIST
1774 "
1775
1776 find_tests(){
1777     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1778 }
1779
1780 ACODEC_TESTS=$(find_tests acodec)
1781 VCODEC_TESTS=$(find_tests vsynth1)
1782 LAVF_TESTS=$(find_tests lavf)
1783 LAVFI_TESTS=$(find_tests lavfi)
1784 SEEK_TESTS=$(find_tests seek seek_)
1785
1786 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1787
1788 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1789
1790 for n in $COMPONENT_LIST; do
1791     v=$(toupper ${n%s})_LIST
1792     eval enable \$$v
1793     eval ${n}_if_any="\$$v"
1794 done
1795
1796 enable $ARCH_EXT_LIST $ALL_TESTS
1797
1798 die_unknown(){
1799     echo "Unknown option \"$1\"."
1800     echo "See $0 --help for available options."
1801     exit 1
1802 }
1803
1804 show_list() {
1805     suffix=_$1
1806     shift
1807     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1808     exit 0
1809 }
1810
1811 for opt do
1812     optval="${opt#*=}"
1813     case "$opt" in
1814     --extra-ldflags=*) add_ldflags $optval
1815     ;;
1816     --extra-libs=*) add_extralibs $optval
1817     ;;
1818     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1819     ;;
1820     --enable-debug=*) debuglevel="$optval"
1821     ;;
1822     --disable-everything)
1823     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1824     ;;
1825     --enable-*=*|--disable-*=*)
1826     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1827     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1828     eval list=\$$(toupper $thing)_LIST
1829     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1830     $action $(filter "$name" $list)
1831     ;;
1832     --enable-?*|--disable-?*)
1833     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1834     if is_in $option $COMPONENT_LIST; then
1835         test $action = disable && action=unset
1836         eval $action \$$(toupper ${option%s})_LIST
1837     elif is_in $option $CMDLINE_SELECT; then
1838         $action $option
1839     else
1840         die_unknown $opt
1841     fi
1842     ;;
1843     --list-*)
1844         NAME="${opt#--list-}"
1845         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1846         NAME=${NAME%s}
1847         eval show_list $NAME \$$(toupper $NAME)_LIST
1848     ;;
1849     --help|-h) show_help
1850     ;;
1851     *)
1852     optname="${opt%%=*}"
1853     optname="${optname#--}"
1854     optname=$(echo "$optname" | sed 's/-/_/g')
1855     if is_in $optname $CMDLINE_SET; then
1856         eval $optname='$optval'
1857     elif is_in $optname $CMDLINE_APPEND; then
1858         append $optname "$optval"
1859     else
1860          die_unknown $opt
1861     fi
1862     ;;
1863     esac
1864 done
1865
1866 disabled logging && logfile=/dev/null
1867
1868 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1869 set >> $logfile
1870
1871 test -n "$cross_prefix" && enable cross_compile
1872
1873 if enabled cross_compile; then
1874     test -n "$arch" && test -n "$target_os" ||
1875         die "Must specify target arch and OS when cross-compiling"
1876 fi
1877
1878 set_default arch target_os
1879
1880 ar_default="${cross_prefix}${ar_default}"
1881 cc_default="${cross_prefix}${cc_default}"
1882 nm_default="${cross_prefix}${nm_default}"
1883 pkg_config_default="${cross_prefix}${pkg_config_default}"
1884 ranlib="${cross_prefix}${ranlib}"
1885
1886 sysinclude_default="${sysroot}/usr/include"
1887
1888 set_default cc nm pkg_config sysinclude
1889 enabled cross_compile || host_cc_default=$cc
1890 set_default host_cc
1891
1892 if ! $pkg_config --version >/dev/null 2>&1; then
1893     warn "$pkg_config not found, library detection may fail."
1894     pkg_config=false
1895 fi
1896
1897 exesuf() {
1898     case $1 in
1899         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1900     esac
1901 }
1902
1903 EXESUF=$(exesuf $target_os)
1904 HOSTEXESUF=$(exesuf $host_os)
1905
1906 # set temporary file name
1907 : ${TMPDIR:=$TEMPDIR}
1908 : ${TMPDIR:=$TMP}
1909 : ${TMPDIR:=/tmp}
1910
1911 if ! check_cmd mktemp -u XXXXXX; then
1912     # simple replacement for missing mktemp
1913     # NOT SAFE FOR GENERAL USE
1914     mktemp(){
1915         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1916     }
1917 fi
1918
1919 tmpfile(){
1920     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1921         (set -C; exec > $tmp) 2>/dev/null ||
1922         die "Unable to create temporary file in $TMPDIR."
1923     append TMPFILES $tmp
1924     eval $1=$tmp
1925 }
1926
1927 trap 'rm -f -- $TMPFILES' EXIT
1928
1929 tmpfile TMPASM .asm
1930 tmpfile TMPC   .c
1931 tmpfile TMPE   $EXESUF
1932 tmpfile TMPH   .h
1933 tmpfile TMPO   .o
1934 tmpfile TMPS   .S
1935 tmpfile TMPSH  .sh
1936 tmpfile TMPV   .ver
1937
1938 unset -f mktemp
1939
1940 chmod +x $TMPE
1941
1942 # make sure we can execute files in $TMPDIR
1943 cat > $TMPSH 2>> $logfile <<EOF
1944 #! /bin/sh
1945 EOF
1946 chmod +x $TMPSH >> $logfile 2>&1
1947 if ! $TMPSH >> $logfile 2>&1; then
1948     cat <<EOF
1949 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1950 variable to another directory and make sure that it is not mounted noexec.
1951 EOF
1952     die "Sanity test failed."
1953 fi
1954
1955 filter_asflags=echo
1956 filter_cflags=echo
1957 filter_cppflags=echo
1958
1959 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1960     cc_type=llvm_gcc
1961     cc_version=__VERSION__
1962     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1963     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1964     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1965     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1966     speed_cflags='-O3'
1967     size_cflags='-Os'
1968 elif $cc -v 2>&1 | grep -qi ^gcc; then
1969     cc_type=gcc
1970     cc_version=__VERSION__
1971     gcc_version=$($cc --version | head -n1)
1972     gcc_basever=$($cc -dumpversion)
1973     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1974     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1975     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1976     if ! $cc -dumpversion | grep -q '^2\.'; then
1977         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1978         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1979     fi
1980     speed_cflags='-O3'
1981     size_cflags='-Os'
1982 elif $cc --version 2>/dev/null | grep -q Intel; then
1983     cc_type=icc
1984     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1985     cc_ident=$($cc --version | head -n1)
1986     icc_version=$($cc -dumpversion)
1987     CC_DEPFLAGS='-MMD'
1988     AS_DEPFLAGS='-MMD'
1989     speed_cflags='-O3'
1990     size_cflags='-Os'
1991     noopt_cflags='-O1'
1992 elif $cc -v 2>&1 | grep -q xlc; then
1993     cc_type=xlc
1994     cc_version="AV_STRINGIFY(__IBMC__)"
1995     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1996     speed_cflags='-O5'
1997     size_cflags='-O5 -qcompact'
1998 elif $cc -V 2>/dev/null | grep -q Compaq; then
1999     cc_type=ccc
2000     cc_version="AV_STRINGIFY(__DECC_VER)"
2001     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2002     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2003     debuglevel=3
2004     add_ldflags -Wl,-z,now # calls to libots crash without this
2005     speed_cflags='-fast'
2006     size_cflags='-O1'
2007 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2008     test -d "$sysroot" || die "No valid sysroot specified."
2009     cc_type=armcc
2010     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2011     cc_ident=$($cc --vsn | head -n1)
2012     armcc_conf="$PWD/armcc.conf"
2013     $cc --arm_linux_configure                 \
2014         --arm_linux_config_file="$armcc_conf" \
2015         --configure_sysroot="$sysroot"        \
2016         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2017         die "Error creating armcc configuration file."
2018     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2019     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2020     as_default="${cross_prefix}gcc"
2021     CC_DEPFLAGS='-MMD'
2022     AS_DEPFLAGS='-MMD'
2023     speed_cflags='-O3'
2024     size_cflags='-Os'
2025     filter_asflags="filter_out -W${armcc_opt}*"
2026 elif $cc -version 2>/dev/null | grep -q TMS470; then
2027     cc_type=tms470
2028     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2029     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2030     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2031     CC_O='-fr=$(@D)'
2032     as_default="${cross_prefix}gcc"
2033     ld_default="${cross_prefix}gcc"
2034     TMPO=$(basename $TMPC .c).o
2035     append TMPFILES $TMPO
2036     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2037     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2038     AS_DEPFLAGS='-MMD'
2039     speed_cflags='-O3 -mf=5'
2040     size_cflags='-O3 -mf=2'
2041     filter_cflags=tms470_flags
2042     tms470_flags(){
2043         for flag; do
2044             case $flag in
2045                 -march=*|-mcpu=*)
2046                     case "${flag#*=}" in
2047                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2048                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2049                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2050                         armv6*|arm11*)          echo -mv=6   ;;
2051                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2052                                                 echo -mv=5e  ;;
2053                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2054                     esac
2055                     ;;
2056                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2057                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2058                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2059                 -msoft-float)   echo --float_support=vfplib       ;;
2060                 -O[0-3]|-mf=*)  echo $flag                        ;;
2061                 -g)             echo -g -mn                       ;;
2062                 -pds=*)         echo $flag                        ;;
2063             esac
2064         done
2065     }
2066 elif $cc -v 2>&1 | grep -q clang; then
2067     cc_type=clang
2068     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2069         cc_version=__clang_version__ || cc_version=__VERSION__
2070     cc_ident=$($cc --version | head -n1)
2071     CC_DEPFLAGS='-MMD'
2072     AS_DEPFLAGS='-MMD'
2073     speed_cflags='-O3'
2074     size_cflags='-Os'
2075 elif $cc -V 2>&1 | grep -q Sun; then
2076     cc_type=suncc
2077     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2078     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2079     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2080     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2081     add_ldflags -xc99
2082     speed_cflags='-O5'
2083     size_cflags='-O5 -xspace'
2084     filter_cflags=suncc_flags
2085     suncc_flags(){
2086         for flag; do
2087             case $flag in
2088                 -march=*|-mcpu=*)
2089                     case "${flag#*=}" in
2090                         native)                   echo -xtarget=native       ;;
2091                         v9|niagara)               echo -xarch=sparc          ;;
2092                         ultrasparc)               echo -xarch=sparcvis       ;;
2093                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2094                         i586|pentium)             echo -xchip=pentium        ;;
2095                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2096                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2097                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2098                         pentium4*)          echo -xtarget=pentium4           ;;
2099                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2100                         *-sse3)             echo -xarch=sse3                 ;;
2101                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2102                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2103                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2104                         k8|opteron|athlon64|athlon-fx)
2105                                                   echo -xarch=sse2a          ;;
2106                         athlon*)                  echo -xarch=pentium_proa   ;;
2107                     esac
2108                     ;;
2109                 -std=c99)             echo -xc99              ;;
2110                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2111                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2112                 -W*,*)                echo $flag              ;;
2113                 -f*-*|-W*)                                    ;;
2114                 *)                    echo $flag              ;;
2115             esac
2116         done
2117     }
2118 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2119     cc_type=pathscale
2120     cc_version=__PATHSCALE__
2121     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2122     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2123     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2124     speed_cflags='-O2'
2125     size_cflags='-Os'
2126     filter_cflags='filter_out -Wdisabled-optimization'
2127 elif $cc -v 2>&1 | grep -q Open64; then
2128     cc_type=open64
2129     cc_version=__OPEN64__
2130     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2131     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2132     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2133     speed_cflags='-O2'
2134     size_cflags='-Os'
2135     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2136 fi
2137
2138 test -n "$cc_type" && enable $cc_type ||
2139     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2140
2141 : ${as_default:=$cc}
2142 : ${dep_cc_default:=$cc}
2143 : ${ld_default:=$cc}
2144 set_default ar as dep_cc ld
2145
2146 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2147 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2148
2149 add_cflags $extra_cflags
2150 add_asflags $extra_cflags
2151
2152 if test -n "$sysroot"; then
2153     case "$cc_type" in
2154         gcc|llvm_gcc|clang)
2155             add_cppflags --sysroot="$sysroot"
2156             add_ldflags --sysroot="$sysroot"
2157         ;;
2158         tms470)
2159             add_cppflags -I"$sysinclude"
2160             add_ldflags  --sysroot="$sysroot"
2161         ;;
2162     esac
2163 fi
2164
2165 if test "$cpu" = host; then
2166     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2167
2168     case "$cc_type" in
2169         gcc|llvm_gcc)
2170             check_native(){
2171                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2172                 sed -n "/cc1.*$1=/{
2173                             s/.*$1=\\([^ ]*\\).*/\\1/
2174                             p
2175                             q
2176                         }" $TMPE
2177             }
2178             cpu=$(check_native -march || check_native -mcpu)
2179         ;;
2180     esac
2181
2182     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2183 fi
2184
2185 # Deal with common $arch aliases
2186 case "$arch" in
2187     arm*)
2188         arch="arm"
2189     ;;
2190     mips|mipsel|IP*)
2191         arch="mips"
2192     ;;
2193     mips64*)
2194         arch="mips"
2195         subarch="mips64"
2196     ;;
2197     parisc|hppa)
2198         arch="parisc"
2199     ;;
2200     parisc64|hppa64)
2201         arch="parisc"
2202         subarch="parisc64"
2203     ;;
2204     "Power Macintosh"|ppc|powerpc)
2205         arch="ppc"
2206     ;;
2207     ppc64|powerpc64)
2208         arch="ppc"
2209         subarch="ppc64"
2210     ;;
2211     s390|s390x)
2212         arch="s390"
2213     ;;
2214     sh4|sh)
2215         arch="sh4"
2216     ;;
2217     sun4u|sparc64)
2218         arch="sparc"
2219         subarch="sparc64"
2220     ;;
2221     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2222         arch="x86"
2223     ;;
2224 esac
2225
2226 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2227 enable $arch
2228
2229 # Add processor-specific flags
2230 if test "$cpu" = generic; then
2231     : do nothing
2232 elif enabled ppc; then
2233
2234     case $(tolower $cpu) in
2235         601|ppc601|powerpc601)
2236             cpuflags="-mcpu=601"
2237             disable altivec
2238         ;;
2239         603*|ppc603*|powerpc603*)
2240             cpuflags="-mcpu=603"
2241             disable altivec
2242         ;;
2243         604*|ppc604*|powerpc604*)
2244             cpuflags="-mcpu=604"
2245             disable altivec
2246         ;;
2247         g3|75*|ppc75*|powerpc75*)
2248             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2249             disable altivec
2250         ;;
2251         g4|745*|ppc745*|powerpc745*)
2252             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2253         ;;
2254         74*|ppc74*|powerpc74*)
2255             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2256         ;;
2257         g5|970|ppc970|powerpc970|power4*)
2258             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2259         ;;
2260         cell)
2261             cpuflags="-mcpu=cell"
2262             enable ldbrx
2263         ;;
2264         e500v2)
2265             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2266             disable altivec
2267         ;;
2268         e500)
2269             cpuflags="-mcpu=8540 -mhard-float"
2270             disable altivec
2271         ;;
2272     esac
2273
2274 elif enabled x86; then
2275
2276     case $cpu in
2277         i[345]86|pentium)
2278             cpuflags="-march=$cpu"
2279             disable mmx
2280         ;;
2281         # targets that do NOT support conditional mov (cmov)
2282         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2283             cpuflags="-march=$cpu"
2284             disable cmov
2285         ;;
2286         # targets that do support conditional mov (cmov)
2287         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2288             cpuflags="-march=$cpu"
2289             enable cmov
2290             enable fast_cmov
2291         ;;
2292         # targets that do support conditional mov but on which it's slow
2293         pentium4|pentium4m|prescott|nocona)
2294             cpuflags="-march=$cpu"
2295             enable cmov
2296             disable fast_cmov
2297         ;;
2298     esac
2299
2300 elif enabled sparc; then
2301
2302     case $cpu in
2303         niagara)
2304             cpuflags="-mcpu=$cpu"
2305             disable vis
2306         ;;
2307         sparc64)
2308             cpuflags="-mcpu=v9"
2309         ;;
2310     esac
2311
2312 elif enabled arm; then
2313
2314     case $cpu in
2315         armv*)
2316             cpuflags="-march=$cpu"
2317             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2318         ;;
2319         *)
2320             cpuflags="-mcpu=$cpu"
2321             case $cpu in
2322                 cortex-a*)                               subarch=armv7a  ;;
2323                 cortex-r*)                               subarch=armv7r  ;;
2324                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2325                 arm11*)                                  subarch=armv6   ;;
2326                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2327                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2328             esac
2329         ;;
2330     esac
2331
2332 elif enabled alpha; then
2333
2334     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2335
2336 elif enabled bfin; then
2337
2338     cpuflags="-mcpu=$cpu"
2339
2340 elif enabled mips; then
2341
2342     cpuflags="-march=$cpu"
2343
2344 elif enabled avr32; then
2345
2346     case $cpu in
2347         ap7[02]0[0-2])
2348             subarch="avr32_ap"
2349             cpuflags="-mpart=$cpu"
2350         ;;
2351         ap)
2352             subarch="avr32_ap"
2353             cpuflags="-march=$cpu"
2354         ;;
2355         uc3[ab]*)
2356             subarch="avr32_uc"
2357             cpuflags="-mcpu=$cpu"
2358         ;;
2359         uc)
2360             subarch="avr32_uc"
2361             cpuflags="-march=$cpu"
2362         ;;
2363     esac
2364
2365 fi
2366
2367 add_cflags $cpuflags
2368 add_asflags $cpuflags
2369
2370 # compiler sanity check
2371 check_exec <<EOF
2372 int main(void){ return 0; }
2373 EOF
2374 if test "$?" != 0; then
2375     echo "$cc is unable to create an executable file."
2376     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2377         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2378         echo "Only do this if you know what cross compiling means."
2379     fi
2380     die "C compiler test failed."
2381 fi
2382
2383 add_cppflags -D_ISOC99_SOURCE
2384 check_cflags -std=c99
2385 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2386 #include <stdlib.h>
2387 EOF
2388 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2389 #include <stdlib.h>
2390 EOF
2391
2392 check_host_cflags -std=c99
2393 check_host_cflags -Wall
2394
2395 case "$arch" in
2396     alpha|ia64|mips|parisc|sparc)
2397         spic=$shared
2398     ;;
2399     x86)
2400         subarch="x86_32"
2401         check_cc <<EOF && subarch="x86_64"
2402         int test[(int)sizeof(char*) - 7];
2403 EOF
2404         if test "$subarch" = "x86_64"; then
2405             spic=$shared
2406         fi
2407     ;;
2408 esac
2409
2410 enable $subarch
2411 enabled spic && enable pic
2412
2413 # OS specific
2414 case $target_os in
2415     haiku)
2416         prefix_default="/boot/common"
2417         network_extralibs="-lnetwork"
2418         host_libs=
2419         ;;
2420     sunos)
2421         AVSERVERLDFLAGS=""
2422         SHFLAGS='-shared -Wl,-h,$$(@F)'
2423         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2424         network_extralibs="-lsocket -lnsl"
2425         add_cppflags -D__EXTENSIONS__
2426         # When using suncc to build, the Solaris linker will mark
2427         # an executable with each instruction set encountered by
2428         # the Solaris assembler.  As our libraries contain their own
2429         # guards for processor-specific code, instead suppress
2430         # generation of the HWCAPS ELF section on Solaris x86 only.
2431         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2432         nm_opts='-P -g'
2433         ;;
2434     netbsd)
2435         disable symver
2436         oss_indev_extralibs="-lossaudio"
2437         oss_outdev_extralibs="-lossaudio"
2438         ;;
2439     openbsd)
2440         enable malloc_aligned
2441         # On OpenBSD 4.5. the compiler does not use PIC unless
2442         # explicitly using -fPIC. Libav builds fine without PIC,
2443         # however the generated executable will not do anything
2444         # (simply quits with exit-code 1, no crash, no output).
2445         # Thus explicitly enable PIC here.
2446         enable pic
2447         disable symver
2448         SHFLAGS='-shared'
2449         oss_indev_extralibs="-lossaudio"
2450         oss_outdev_extralibs="-lossaudio"
2451         ;;
2452     dragonfly)
2453         enable malloc_aligned
2454         disable symver
2455         ;;
2456     freebsd)
2457         enable malloc_aligned
2458         ;;
2459     bsd/os)
2460         add_extralibs -lpoll -lgnugetopt
2461         ;;
2462     darwin)
2463         enable malloc_aligned
2464         gas="gas-preprocessor.pl $cc"
2465         enabled ppc && add_asflags -force_cpusubtype_ALL
2466         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2467         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2468         add_ldflags -Wl,-dynamic,-search_paths_first
2469         SLIBSUF=".dylib"
2470         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2471         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2472         AVSERVERLDFLAGS=-Wl,-bind_at_load
2473         objformat="macho"
2474         enabled x86_64 && objformat="macho64"
2475         enabled_any pic shared ||
2476             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2477         ;;
2478     mingw32*)
2479         if test $target_os = "mingw32ce"; then
2480             disable network
2481         else
2482             target_os=mingw32
2483         fi
2484         LIBTARGET=i386
2485         if enabled x86_64; then
2486             enable malloc_aligned
2487             LIBTARGET="i386:x86-64"
2488         elif enabled arm; then
2489             LIBTARGET=arm-wince
2490         fi
2491         shlibdir_default="$bindir_default"
2492         SLIBPREF=""
2493         SLIBSUF=".dll"
2494         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2495         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2496         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2497         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2498         SLIB_INSTALL_LINKS=
2499         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2500         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2501         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'
2502         objformat="win32"
2503         dlltool="${cross_prefix}dlltool"
2504         enable dos_paths
2505         check_cflags -fno-common
2506         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2507                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2508                 die "ERROR: MinGW runtime version must be >= 3.15."
2509         add_cppflags -U__STRICT_ANSI__
2510         ;;
2511     cygwin*)
2512         target_os=cygwin
2513         shlibdir_default="$bindir_default"
2514         SLIBPREF="cyg"
2515         SLIBSUF=".dll"
2516         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2517         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2518         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2519         objformat="win32"
2520         enable dos_paths
2521         check_cflags -fno-common
2522         add_cppflags -U__STRICT_ANSI__
2523         ;;
2524     *-dos|freedos|opendos)
2525         network_extralibs="-lsocket"
2526         objformat="coff"
2527         enable dos_paths
2528         add_cppflags -U__STRICT_ANSI__
2529         ;;
2530     linux)
2531         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2532         enable dv1394
2533         ;;
2534     irix*)
2535         target_os=irix
2536         ranlib="echo ignoring ranlib"
2537         ;;
2538     os/2*)
2539         ln_s="cp -f"
2540         objformat="aout"
2541         add_cppflags -D_GNU_SOURCE
2542         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2543         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2544         AVSERVERLDFLAGS=""
2545         LIBSUF="_s.a"
2546         SLIBPREF=""
2547         SLIBSUF=".dll"
2548         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2549         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2550         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2551           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2552           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2553           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2554           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2555           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2556         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2557           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2558         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2559         enable dos_paths
2560         ;;
2561     gnu/kfreebsd)
2562         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2563         ;;
2564     gnu)
2565         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2566         ;;
2567     qnx)
2568         add_cppflags -D_QNX_SOURCE
2569         network_extralibs="-lsocket"
2570         ;;
2571     symbian)
2572         SLIBSUF=".dll"
2573         enable dos_paths
2574         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2575         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2576         add_ldflags -Wl,--target1-abs,--no-undefined \
2577                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2578                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2579         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2580                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2581                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2582         ;;
2583     none)
2584         ;;
2585     *)
2586         die "Unknown OS '$target_os'."
2587         ;;
2588 esac
2589
2590 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2591
2592 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2593
2594 set_default $PATHS_LIST
2595
2596 # we need to build at least one lib type
2597 if ! enabled_any static shared; then
2598     cat <<EOF
2599 At least one library type must be built.
2600 Specify --enable-static to build the static libraries or --enable-shared to
2601 build the shared libraries as well. To only build the shared libraries specify
2602 --disable-static in addition to --enable-shared.
2603 EOF
2604     exit 1;
2605 fi
2606
2607 die_license_disabled() {
2608     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2609 }
2610
2611 die_license_disabled gpl libcdio
2612 die_license_disabled gpl libx264
2613 die_license_disabled gpl libxavs
2614 die_license_disabled gpl libxvid
2615 die_license_disabled gpl x11grab
2616
2617 die_license_disabled nonfree libfaac
2618 die_license_disabled nonfree openssl
2619
2620 die_license_disabled version3 libopencore_amrnb
2621 die_license_disabled version3 libopencore_amrwb
2622 die_license_disabled version3 libvo_aacenc
2623 die_license_disabled version3 libvo_amrwbenc
2624
2625 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2626
2627 disabled optimizations || check_cflags -fomit-frame-pointer
2628
2629 enable_pic() {
2630     enable pic
2631     add_cppflags -DPIC
2632     add_cflags   -fPIC
2633     add_asflags  -fPIC
2634 }
2635
2636 enabled pic && enable_pic
2637
2638 check_cc <<EOF || die "Symbol mangling check failed."
2639 int ff_extern;
2640 EOF
2641 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2642 extern_prefix=${sym%%ff_extern*}
2643
2644 check_cc <<EOF && enable inline_asm
2645 void foo(void) { __asm__ volatile ("" ::); }
2646 EOF
2647
2648 _restrict=
2649 for restrict_keyword in restrict __restrict__ __restrict; do
2650     check_cc <<EOF && _restrict=$restrict_keyword && break
2651 void foo(char * $restrict_keyword p);
2652 EOF
2653 done
2654
2655 check_cc <<EOF && enable attribute_packed
2656 struct { int x; } __attribute__((packed)) x;
2657 EOF
2658
2659 check_cc <<EOF && enable attribute_may_alias
2660 union { int x; } __attribute__((may_alias)) x;
2661 EOF
2662
2663 check_cc <<EOF || die "endian test failed"
2664 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2665 EOF
2666 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2667
2668 if enabled alpha; then
2669
2670     check_cflags -mieee
2671
2672 elif enabled arm; then
2673
2674     enabled thumb && check_cflags -mthumb || check_cflags -marm
2675     nogas=die
2676
2677     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2678         enable vfp_args
2679     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2680         case "${cross_prefix:-$cc}" in
2681             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2682             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2683 __asm__ (".eabi_attribute 28, 1");
2684 int main(void) { return 0; }
2685 EOF
2686         esac
2687         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2688     fi
2689
2690     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2691     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2692     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2693     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2694     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2695     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2696     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2697
2698     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2699
2700     enabled_all armv6t2 shared !pic && enable_pic
2701
2702 elif enabled mips; then
2703
2704     check_asm loongson '"dmult.g $1, $2, $3"'
2705     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2706
2707 elif enabled ppc; then
2708
2709     enable local_aligned_8 local_aligned_16
2710
2711     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2712     check_asm ibm_asm   '"add 0, 0, 0"'
2713     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2714     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2715
2716     # AltiVec flags: The FSF version of GCC differs from the Apple version
2717     if enabled altivec; then
2718         nogas=warn
2719         check_cflags -maltivec -mabi=altivec &&
2720         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2721         check_cflags -faltivec
2722
2723         # check if our compiler supports Motorola AltiVec C API
2724         check_cc <<EOF || disable altivec
2725 $inc_altivec_h
2726 int main(void) {
2727     vector signed int v1, v2, v3;
2728     v1 = vec_add(v2,v3);
2729     return 0;
2730 }
2731 EOF
2732
2733         # check if our compiler supports braces for vector declarations
2734         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2735 $inc_altivec_h
2736 int main (void) { (vector int) {1}; return 0; }
2737 EOF
2738     fi
2739
2740 elif enabled sparc; then
2741
2742     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2743         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2744
2745 elif enabled x86; then
2746
2747     enable local_aligned_8 local_aligned_16
2748
2749     # check whether EBP is available on x86
2750     # As 'i' is stored on the stack, this program will crash
2751     # if the base pointer is used to access it because the
2752     # base pointer is cleared in the inline assembly code.
2753     check_exec_crash <<EOF && enable ebp_available
2754     volatile int i=0;
2755     __asm__ volatile (
2756         "xorl %%ebp, %%ebp"
2757     ::: "%ebp");
2758     return i;
2759 EOF
2760
2761     # check whether EBX is available on x86
2762     check_asm ebx_available '""::"b"(0)' &&
2763         check_asm ebx_available '"":::"%ebx"'
2764
2765     # check whether xmm clobbers are supported
2766     check_asm xmm_clobbers '"":::"%xmm0"'
2767
2768     # check whether binutils is new enough to compile SSSE3/MMX2
2769     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2770     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2771
2772     if ! disabled_any asm mmx yasm; then
2773         if check_cmd $yasmexe --version; then
2774             enabled x86_64 && yasm_extra="-m amd64"
2775             yasm_debug="-g dwarf2"
2776         elif check_cmd nasm -v; then
2777             yasmexe=nasm
2778             yasm_debug="-g -F dwarf"
2779             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2780         fi
2781
2782         YASMFLAGS="-f $objformat $yasm_extra"
2783         enabled pic               && append YASMFLAGS "-DPIC"
2784         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2785         case "$objformat" in
2786             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2787         esac
2788
2789         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2790             die "yasm not found, use --disable-yasm for a crippled build"
2791         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2792     fi
2793
2794     case "$cpu" in
2795         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2796             disable fast_clz
2797         ;;
2798     esac
2799
2800 fi
2801
2802 if enabled asm; then
2803     as=${gas:=$as}
2804     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2805         $nogas "GNU assembler not found, install gas-preprocessor"
2806 fi
2807
2808 check_ldflags -Wl,--as-needed
2809
2810 if check_func dlopen; then
2811     ldl=
2812 elif check_func dlopen -ldl; then
2813     ldl=-ldl
2814 fi
2815
2816 if enabled network; then
2817     check_type "sys/types.h sys/socket.h" socklen_t
2818     check_type netdb.h "struct addrinfo"
2819     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2820     check_type netinet/in.h "struct sockaddr_in6"
2821     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2822     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2823     # Prefer arpa/inet.h over winsock2
2824     if check_header arpa/inet.h ; then
2825         check_func closesocket
2826     elif check_header winsock2.h ; then
2827         check_func_headers winsock2.h closesocket -lws2 && \
2828             network_extralibs="-lws2" || \
2829         { check_func_headers winsock2.h closesocket -lws2_32 && \
2830             network_extralibs="-lws2_32"; }
2831         check_type ws2tcpip.h socklen_t
2832         check_type ws2tcpip.h "struct addrinfo"
2833         check_type ws2tcpip.h "struct ipv6_mreq"
2834         check_type ws2tcpip.h "struct sockaddr_in6"
2835         check_type ws2tcpip.h "struct sockaddr_storage"
2836         check_struct winsock2.h "struct sockaddr" sa_len
2837     else
2838         disable network
2839     fi
2840 fi
2841
2842 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2843 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2844
2845 check_func  fcntl
2846 check_func  fork
2847 check_func  getaddrinfo $network_extralibs
2848 check_func  gethrtime
2849 check_func  getrusage
2850 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2851 check_func  inet_aton $network_extralibs
2852 check_func  isatty
2853 check_func  localtime_r
2854 check_func  ${malloc_prefix}memalign            && enable memalign
2855 check_func  mkstemp
2856 check_func  mmap
2857 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2858 check_func  setrlimit
2859 check_func  strerror_r
2860 check_func  strptime
2861 check_func  strtok_r
2862 check_func  sched_getaffinity
2863 check_func  sysconf
2864 check_func  sysctl
2865 check_func_headers io.h setmode
2866 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2867 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2868 check_func_headers windows.h GetProcessAffinityMask
2869 check_func_headers windows.h GetProcessTimes
2870 check_func_headers windows.h MapViewOfFile
2871 check_func_headers windows.h VirtualAlloc
2872
2873 check_header dlfcn.h
2874 check_header dxva2api.h
2875 check_header malloc.h
2876 check_header poll.h
2877 check_header sys/mman.h
2878 check_header sys/param.h
2879 check_header sys/resource.h
2880 check_header sys/select.h
2881 check_header vdpau/vdpau.h
2882 check_header vdpau/vdpau_x11.h
2883 check_header X11/extensions/XvMClib.h
2884
2885 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2886
2887 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2888 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2889
2890 if ! disabled w32threads && ! enabled pthreads; then
2891     check_func _beginthreadex && enable w32threads
2892 fi
2893
2894 # check for some common methods of building with pthread support
2895 # do this before the optional library checks as some of them require pthreads
2896 if ! disabled pthreads && ! enabled w32threads; then
2897     enable pthreads
2898     if check_func pthread_create; then
2899         :
2900     elif check_func pthread_create -pthread; then
2901         add_cflags -pthread
2902         add_extralibs -pthread
2903     elif check_func pthread_create -pthreads; then
2904         add_cflags -pthreads
2905         add_extralibs -pthreads
2906     elif check_func pthread_create -lpthreadGC2; then
2907         add_extralibs -lpthreadGC2
2908     elif ! check_lib pthread.h pthread_create -lpthread; then
2909         disable pthreads
2910     fi
2911 fi
2912
2913 for thread in $THREADS_LIST; do
2914     if enabled $thread; then
2915         test -n "$thread_type" &&
2916             die "ERROR: Only one thread type must be selected." ||
2917             thread_type="$thread"
2918     fi
2919 done
2920
2921 check_lib math.h sin -lm && LIBM="-lm"
2922 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2923
2924 check_mathfunc exp2
2925 check_mathfunc exp2f
2926 check_mathfunc llrint
2927 check_mathfunc llrintf
2928 check_mathfunc log2
2929 check_mathfunc log2f
2930 check_mathfunc lrint
2931 check_mathfunc lrintf
2932 check_mathfunc round
2933 check_mathfunc roundf
2934 check_mathfunc trunc
2935 check_mathfunc truncf
2936
2937 # these are off by default, so fail if requested and not available
2938 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2939 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2940 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2941 enabled libdirac   && require_pkg_config dirac                          \
2942     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2943     "dirac_decoder_init dirac_encoder_init"
2944 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2945 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2946 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2947 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2948 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2949 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2950 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2951 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2952 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2953 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2954 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2955 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2956 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2957 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2958 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2959 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2960 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2961 enabled libvpx     && {
2962     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2963                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2964     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2965                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2966 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2967                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2968                         die "ERROR: libx264 version must be >= 0.118."; }
2969 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2970 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2971 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2972 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2973                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2974                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2975                         die "ERROR: openssl not found"; }
2976
2977 # libdc1394 check
2978 if enabled libdc1394; then
2979     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2980         enable libdc1394_2; } ||
2981     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2982         enable libdc1394_1; } ||
2983     die "ERROR: No version of libdc1394 found "
2984 fi
2985
2986 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2987     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2988     enable sdl &&
2989     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2990 fi
2991
2992 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2993
2994 check_header linux/fb.h
2995 check_header linux/videodev.h
2996 check_header linux/videodev2.h
2997 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2998
2999 check_header sys/videoio.h
3000
3001 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3002 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3003 # w32api 3.12 had it defined wrong
3004 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3005
3006 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3007 { check_header dev/bktr/ioctl_meteor.h &&
3008   check_header dev/bktr/ioctl_bt848.h; } ||
3009 { check_header machine/ioctl_meteor.h &&
3010   check_header machine/ioctl_bt848.h; } ||
3011 { check_header dev/video/meteor/ioctl_meteor.h &&
3012   check_header dev/video/bktr/ioctl_bt848.h; } ||
3013 check_header dev/ic/bt8xx.h
3014
3015 check_header sndio.h
3016 check_header sys/soundcard.h
3017 check_header soundcard.h
3018
3019 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3020
3021 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3022
3023 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3024
3025 enabled libcdio &&
3026     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3027
3028 enabled x11grab                         &&
3029 check_header X11/Xlib.h                 &&
3030 check_header X11/extensions/XShm.h      &&
3031 check_header X11/extensions/Xfixes.h    &&
3032 check_func XOpenDisplay -lX11           &&
3033 check_func XShmCreateImage -lX11 -lXext &&
3034 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3035
3036 # check for VDA header
3037 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3038     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3039 fi
3040
3041 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3042 check_cpp_condition \
3043     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3044     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3045       disable vdpau; }
3046 fi
3047
3048 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3049
3050 # add some useful compiler flags if supported
3051 check_cflags -Wdeclaration-after-statement
3052 check_cflags -Wall
3053 check_cflags -Wno-parentheses
3054 check_cflags -Wno-switch
3055 check_cflags -Wno-format-zero-length
3056 check_cflags -Wdisabled-optimization
3057 check_cflags -Wpointer-arith
3058 check_cflags -Wredundant-decls
3059 check_cflags -Wno-pointer-sign
3060 check_cflags -Wcast-qual
3061 check_cflags -Wwrite-strings
3062 check_cflags -Wtype-limits
3063 check_cflags -Wundef
3064 check_cflags -Wmissing-prototypes
3065 check_cflags -Wstrict-prototypes
3066 enabled extra_warnings && check_cflags -Winline
3067
3068 # add some linker flags
3069 check_ldflags -Wl,--warn-common
3070 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3071 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3072
3073 echo "X{};" > $TMPV
3074 if test_ldflags -Wl,--version-script,$TMPV; then
3075     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3076     check_cc <<EOF && enable symver_asm_label
3077 void ff_foo(void) __asm__ ("av_foo@VERSION");
3078 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3079 EOF
3080     check_cc <<EOF && enable symver_gnu_asm
3081 __asm__(".symver ff_foo,av_foo@VERSION");
3082 void ff_foo(void) {}
3083 EOF
3084 fi
3085
3086 if [ -n "$optflags" ]; then
3087     add_cflags $optflags
3088 elif enabled small; then
3089     add_cflags $size_cflags
3090 elif enabled optimizations; then
3091     add_cflags $speed_cflags
3092 else
3093     add_cflags $noopt_cflags
3094 fi
3095 check_cflags -fno-math-errno
3096 check_cflags -fno-signed-zeros
3097
3098 if enabled icc; then
3099     # Just warnings, no remarks
3100     check_cflags -w1
3101     # -wd: Disable following warnings
3102     # 144, 167, 556: -Wno-pointer-sign
3103     # 1292: attribute "foo" ignored
3104     # 10006: ignoring unknown option -fno-signed-zeros
3105     # 10148: ignoring unknown option -Wno-parentheses
3106     # 10156: ignoring option '-W'; no argument required
3107     check_cflags -wd144,167,556,1292,10006,10148,10156
3108     # 11030: Warning unknown option --as-needed
3109     # 10156: ignoring option '-export'; no argument required
3110     check_ldflags -wd10156,11030
3111     # Allow to compile with optimizations
3112     check_ldflags -march=$cpu
3113     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3114     enable ebp_available
3115     if enabled x86_32; then
3116         test ${icc_version%%.*} -ge 11 && \
3117             check_cflags -falign-stack=maintain-16-byte || \
3118             disable aligned_stack
3119     fi
3120 elif enabled ccc; then
3121     # disable some annoying warnings
3122     add_cflags -msg_disable cvtu32to64
3123     add_cflags -msg_disable embedcomment
3124     add_cflags -msg_disable needconstext
3125     add_cflags -msg_disable nomainieee
3126     add_cflags -msg_disable ptrmismatch1
3127     add_cflags -msg_disable unreachcode
3128 elif enabled gcc; then
3129     check_cflags -fno-tree-vectorize
3130     check_cflags -Werror=implicit-function-declaration
3131     check_cflags -Werror=missing-prototypes
3132     check_cflags -Werror=declaration-after-statement
3133 elif enabled llvm_gcc; then
3134     check_cflags -mllvm -stack-alignment=16
3135 elif enabled clang; then
3136     check_cflags -mllvm -stack-alignment=16
3137     check_cflags -Qunused-arguments
3138 elif enabled armcc; then
3139     # 2523: use of inline assembler is deprecated
3140     add_cflags -W${armcc_opt},--diag_suppress=2523
3141     add_cflags -W${armcc_opt},--diag_suppress=1207
3142     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3143     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3144     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3145     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3146 elif enabled tms470; then
3147     add_cflags -pds=824 -pds=837
3148 elif enabled pathscale; then
3149     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3150 fi
3151
3152 enabled_any $THREADS_LIST      && enable threads
3153
3154 check_deps $CONFIG_LIST       \
3155            $CONFIG_EXTRA      \
3156            $HAVE_LIST         \
3157            $ALL_COMPONENTS    \
3158            $ALL_TESTS         \
3159
3160 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3161
3162 ! enabled_any memalign posix_memalign malloc_aligned &&
3163     enabled_any $need_memalign && enable memalign_hack
3164
3165 echo "install prefix            $prefix"
3166 echo "source path               $source_path"
3167 echo "C compiler                $cc"
3168 echo "ARCH                      $arch ($cpu)"
3169 if test "$build_suffix" != ""; then
3170     echo "build suffix              $build_suffix"
3171 fi
3172 if test "$extra_version" != ""; then
3173     echo "version string suffix     $extra_version"
3174 fi
3175 echo "big-endian                ${bigendian-no}"
3176 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3177 if enabled x86; then
3178     echo "${yasmexe}                      ${yasm-no}"
3179     echo "MMX enabled               ${mmx-no}"
3180     echo "MMX2 enabled              ${mmx2-no}"
3181     echo "3DNow! enabled            ${amd3dnow-no}"
3182     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3183     echo "SSE enabled               ${sse-no}"
3184     echo "SSSE3 enabled             ${ssse3-no}"
3185     echo "AVX enabled               ${avx-no}"
3186     echo "CMOV enabled              ${cmov-no}"
3187     echo "CMOV is fast              ${fast_cmov-no}"
3188     echo "EBX available             ${ebx_available-no}"
3189     echo "EBP available             ${ebp_available-no}"
3190 fi
3191 if enabled arm; then
3192     echo "ARMv5TE enabled           ${armv5te-no}"
3193     echo "ARMv6 enabled             ${armv6-no}"
3194     echo "ARMv6T2 enabled           ${armv6t2-no}"
3195     echo "ARM VFP enabled           ${armvfp-no}"
3196     echo "IWMMXT enabled            ${iwmmxt-no}"
3197     echo "NEON enabled              ${neon-no}"
3198 fi
3199 if enabled mips; then
3200     echo "MMI enabled               ${mmi-no}"
3201 fi
3202 if enabled ppc; then
3203     echo "AltiVec enabled           ${altivec-no}"
3204     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3205     echo "dcbzl available           ${dcbzl-no}"
3206 fi
3207 if enabled sparc; then
3208     echo "VIS enabled               ${vis-no}"
3209 fi
3210 echo "debug symbols             ${debug-no}"
3211 echo "optimize for size         ${small-no}"
3212 echo "optimizations             ${optimizations-no}"
3213 echo "static                    ${static-no}"
3214 echo "shared                    ${shared-no}"
3215 echo "postprocessing support    ${postproc-no}"
3216 echo "new filter support        ${avfilter-no}"
3217 echo "network support           ${network-no}"
3218 echo "threading support         ${thread_type-no}"
3219 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3220 echo "SDL support               ${sdl-no}"
3221 echo "Sun medialib support      ${mlib-no}"
3222 echo "libdxva2 enabled          ${dxva2-no}"
3223 echo "libva enabled             ${vaapi-no}"
3224 echo "libvdpau enabled          ${vdpau-no}"
3225 echo "AVISynth enabled          ${avisynth-no}"
3226 echo "frei0r enabled            ${frei0r-no}"
3227 echo "gnutls enabled            ${gnutls-no}"
3228 echo "libcdio support           ${libcdio-no}"
3229 echo "libdc1394 support         ${libdc1394-no}"
3230 echo "libdirac enabled          ${libdirac-no}"
3231 echo "libfaac enabled           ${libfaac-no}"
3232 echo "libgsm enabled            ${libgsm-no}"
3233 echo "libmp3lame enabled        ${libmp3lame-no}"
3234 echo "libnut enabled            ${libnut-no}"
3235 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3236 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3237 echo "libopencv support         ${libopencv-no}"
3238 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3239 echo "libpulse enabled          ${libpulse-no}"
3240 echo "librtmp enabled           ${librtmp-no}"
3241 echo "libschroedinger enabled   ${libschroedinger-no}"
3242 echo "libspeex enabled          ${libspeex-no}"
3243 echo "libtheora enabled         ${libtheora-no}"
3244 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3245 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3246 echo "libvorbis enabled         ${libvorbis-no}"
3247 echo "libvpx enabled            ${libvpx-no}"
3248 echo "libx264 enabled           ${libx264-no}"
3249 echo "libxavs enabled           ${libxavs-no}"
3250 echo "libxvid enabled           ${libxvid-no}"
3251 echo "openssl enabled           ${openssl-no}"
3252 echo "zlib enabled              ${zlib-no}"
3253 echo "bzlib enabled             ${bzlib-no}"
3254 echo
3255
3256 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3257     echo "Enabled ${type}s:"
3258     eval list=\$$(toupper $type)_LIST
3259     print_enabled '_*' $list | sort | pr -r -3 -t
3260     echo
3261 done
3262
3263 license="LGPL version 2.1 or later"
3264 if enabled nonfree; then
3265     license="nonfree and unredistributable"
3266 elif enabled gplv3; then
3267     license="GPL version 3 or later"
3268 elif enabled lgplv3; then
3269     license="LGPL version 3 or later"
3270 elif enabled gpl; then
3271     license="GPL version 2 or later"
3272 fi
3273
3274 echo "License: $license"
3275
3276 echo "Creating config.mak and config.h..."
3277
3278 test -e Makefile || $ln_s "$source_path/Makefile" .
3279
3280 config_files="$TMPH config.mak"
3281
3282 cat > config.mak <<EOF
3283 # Automatically generated by configure - do not modify!
3284 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3285 prefix=$prefix
3286 LIBDIR=\$(DESTDIR)$libdir
3287 SHLIBDIR=\$(DESTDIR)$shlibdir
3288 INCDIR=\$(DESTDIR)$incdir
3289 BINDIR=\$(DESTDIR)$bindir
3290 DATADIR=\$(DESTDIR)$datadir
3291 MANDIR=\$(DESTDIR)$mandir
3292 SRC_PATH=$source_path
3293 CC_IDENT=$cc_ident
3294 ARCH=$arch
3295 CC=$cc
3296 AS=$as
3297 LD=$ld
3298 DEPCC=$dep_cc
3299 YASM=$yasmexe
3300 YASMDEP=$yasmexe
3301 AR=$ar
3302 RANLIB=$ranlib
3303 LN_S=$ln_s
3304 CPPFLAGS=$CPPFLAGS
3305 CFLAGS=$CFLAGS
3306 ASFLAGS=$ASFLAGS
3307 AS_O=$CC_O
3308 CC_O=$CC_O
3309 DLLTOOL=$dlltool
3310 LDFLAGS=$LDFLAGS
3311 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3312 SHFLAGS=$SHFLAGS
3313 YASMFLAGS=$YASMFLAGS
3314 BUILDSUF=$build_suffix
3315 FULLNAME=$FULLNAME
3316 LIBPREF=$LIBPREF
3317 LIBSUF=$LIBSUF
3318 LIBNAME=$LIBNAME
3319 SLIBPREF=$SLIBPREF
3320 SLIBSUF=$SLIBSUF
3321 EXESUF=$EXESUF
3322 EXTRA_VERSION=$extra_version
3323 DEPFLAGS=$DEPFLAGS
3324 CCDEP=$CCDEP
3325 ASDEP=$ASDEP
3326 CC_DEPFLAGS=$CC_DEPFLAGS
3327 AS_DEPFLAGS=$AS_DEPFLAGS
3328 HOSTCC=$host_cc
3329 HOSTCFLAGS=$host_cflags
3330 HOSTEXESUF=$HOSTEXESUF
3331 HOSTLDFLAGS=$host_ldflags
3332 HOSTLIBS=$host_libs
3333 TARGET_EXEC=$target_exec
3334 TARGET_PATH=$target_path
3335 SDL_LIBS=$sdl_libs
3336 SDL_CFLAGS=$sdl_cflags
3337 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3338 EXTRALIBS=$extralibs
3339 INSTALL=install
3340 LIBTARGET=${LIBTARGET}
3341 SLIBNAME=${SLIBNAME}
3342 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3343 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3344 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3345 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3346 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3347 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3348 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3349 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3350 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3351 EOF
3352
3353 get_version(){
3354     name=$1
3355     file=$source_path/$2
3356     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3357     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3358     lcname=$(tolower $name)
3359     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3360     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3361 }
3362
3363 get_version LIBAVCODEC  libavcodec/version.h
3364 get_version LIBAVDEVICE libavdevice/avdevice.h
3365 get_version LIBAVFILTER libavfilter/avfilter.h
3366 get_version LIBAVFORMAT libavformat/version.h
3367 get_version LIBAVUTIL   libavutil/avutil.h
3368 get_version LIBPOSTPROC libpostproc/postprocess.h
3369 get_version LIBSWSCALE  libswscale/swscale.h
3370
3371 cat > $TMPH <<EOF
3372 /* Automatically generated by configure - do not modify! */
3373 #ifndef LIBAV_CONFIG_H
3374 #define LIBAV_CONFIG_H
3375 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3376 #define LIBAV_LICENSE "$(c_escape $license)"
3377 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3378 #define CC_TYPE "$cc_type"
3379 #define CC_VERSION $cc_version
3380 #define restrict $_restrict
3381 #define EXTERN_PREFIX "${extern_prefix}"
3382 #define EXTERN_ASM ${extern_prefix}
3383 #define SLIBSUF "$SLIBSUF"
3384 EOF
3385
3386 test -n "$malloc_prefix" &&
3387     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3388
3389 if enabled small || disabled optimizations; then
3390     echo "#undef  av_always_inline"  >> $TMPH
3391     if enabled small; then
3392         echo "#define av_always_inline inline"  >> $TMPH
3393     else
3394         echo "#define av_always_inline av_unused"  >> $TMPH
3395     fi
3396 fi
3397
3398 if enabled yasm; then
3399     append config_files $TMPASM
3400     printf '' >$TMPASM
3401 fi
3402
3403 print_config ARCH_   "$config_files" $ARCH_LIST
3404 print_config HAVE_   "$config_files" $HAVE_LIST
3405 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3406                                      $CONFIG_EXTRA      \
3407                                      $ALL_COMPONENTS    \
3408
3409 cat >>config.mak <<EOF
3410 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3411 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3412 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3413 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3414 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3415 EOF
3416
3417 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3418
3419 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3420 cp_if_changed $TMPH config.h
3421 touch .config
3422
3423 enabled yasm && cp_if_changed $TMPASM config.asm
3424
3425 cat > $TMPH <<EOF
3426 /* Generated by ffconf */
3427 #ifndef AVUTIL_AVCONFIG_H
3428 #define AVUTIL_AVCONFIG_H
3429 EOF
3430
3431 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3432
3433 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3434
3435 cp_if_changed $TMPH libavutil/avconfig.h
3436
3437 test -n "$WARNINGS" && printf "\n$WARNINGS"
3438
3439 # build pkg-config files
3440
3441 pkgconfig_generate(){
3442 name=$1
3443 shortname=${name#lib}${build_suffix}
3444 comment=$2
3445 version=$3
3446 libs=$4
3447 requires=$5
3448 enabled ${name#lib} || return 0
3449 mkdir -p $name
3450 cat <<EOF > $name/$name.pc
3451 prefix=$prefix
3452 exec_prefix=\${prefix}
3453 libdir=$libdir
3454 includedir=$incdir
3455
3456 Name: $name
3457 Description: $comment
3458 Version: $version
3459 Requires: $(enabled shared || echo $requires)
3460 Requires.private: $(enabled shared && echo $requires)
3461 Conflicts:
3462 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3463 Libs.private: $(enabled shared && echo $libs)
3464 Cflags: -I\${includedir}
3465 EOF
3466 cat <<EOF > $name/$name-uninstalled.pc
3467 prefix=
3468 exec_prefix=
3469 libdir=\${pcfiledir}
3470 includedir=${source_path}
3471
3472 Name: $name
3473 Description: $comment
3474 Version: $version
3475 Requires: $requires
3476 Conflicts:
3477 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3478 Cflags: -I\${includedir}
3479 EOF
3480 }
3481
3482 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3483 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3484 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3485 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3486 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3487 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3488 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"