bsd: use number of logical CPUs as automatic thread count
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-avplay         disable avplay build
86   --disable-avprobe        disable avprobe build
87   --disable-avserver       disable avserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --disable-w32threads     disable Win32 threads [auto]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --enable-vaapi           enable VAAPI code
111   --enable-vda             enable VDA code
112   --enable-vdpau           enable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --disable-safe-bitstream-reader
117                            disable buffer boundary checking in bitreaders
118                            (faster, but may crash)
119   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
120   --disable-everything     disable all components listed below
121   --disable-encoder=NAME   disable encoder NAME
122   --enable-encoder=NAME    enable encoder NAME
123   --disable-encoders       disable all encoders
124   --disable-decoder=NAME   disable decoder NAME
125   --enable-decoder=NAME    enable decoder NAME
126   --disable-decoders       disable all decoders
127   --disable-hwaccel=NAME   disable hwaccel NAME
128   --enable-hwaccel=NAME    enable hwaccel NAME
129   --disable-hwaccels       disable all hwaccels
130   --disable-muxer=NAME     disable muxer NAME
131   --enable-muxer=NAME      enable muxer NAME
132   --disable-muxers         disable all muxers
133   --disable-demuxer=NAME   disable demuxer NAME
134   --enable-demuxer=NAME    enable demuxer NAME
135   --disable-demuxers       disable all demuxers
136   --enable-parser=NAME     enable parser NAME
137   --disable-parser=NAME    disable parser NAME
138   --disable-parsers        disable all parsers
139   --enable-bsf=NAME        enable bitstream filter NAME
140   --disable-bsf=NAME       disable bitstream filter NAME
141   --disable-bsfs           disable all bitstream filters
142   --enable-protocol=NAME   enable protocol NAME
143   --disable-protocol=NAME  disable protocol NAME
144   --disable-protocols      disable all protocols
145   --disable-indev=NAME     disable input device NAME
146   --disable-outdev=NAME    disable output device NAME
147   --disable-indevs         disable input devices
148   --disable-outdevs        disable output devices
149   --disable-devices        disable all devices
150   --enable-filter=NAME     enable filter NAME
151   --disable-filter=NAME    disable filter NAME
152   --disable-filters        disable all filters
153   --list-decoders          show all available decoders
154   --list-encoders          show all available encoders
155   --list-hwaccels          show all available hardware accelerators
156   --list-muxers            show all available muxers
157   --list-demuxers          show all available demuxers
158   --list-parsers           show all available parsers
159   --list-protocols         show all available protocols
160   --list-bsfs              show all available bitstream filters
161   --list-indevs            show all available input devices
162   --list-outdevs           show all available output devices
163   --list-filters           show all available filters
164
165 External library support:
166   --enable-avisynth        enable reading of AVISynth script files [no]
167   --enable-bzlib           enable bzlib [autodetect]
168   --enable-frei0r          enable frei0r video filtering
169   --enable-gnutls          enable gnutls [no]
170   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
171   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
172   --enable-libopencv       enable video filtering via libopencv [no]
173   --enable-libcdio         enable audio CD grabbing with libcdio
174   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
175                            and libraw1394 [no]
176   --enable-libdirac        enable Dirac support via libdirac [no]
177   --enable-libfaac         enable FAAC support via libfaac [no]
178   --enable-libfreetype     enable libfreetype [no]
179   --enable-libgsm          enable GSM support via libgsm [no]
180   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
181   --enable-libnut          enable NUT (de)muxing via libnut,
182                            native (de)muxer exists [no]
183   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
184   --enable-libpulse        enable Pulseaudio input via libpulse [no]
185   --enable-librtmp         enable RTMP[E] support via librtmp [no]
186   --enable-libschroedinger enable Dirac support via libschroedinger [no]
187   --enable-libspeex        enable Speex support via libspeex [no]
188   --enable-libtheora       enable Theora encoding via libtheora [no]
189   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
190   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
191   --enable-libvorbis       enable Vorbis encoding via libvorbis,
192                            native implementation exists [no]
193   --enable-libvpx          enable VP8 support via libvpx [no]
194   --enable-libx264         enable H.264 encoding via x264 [no]
195   --enable-libxavs         enable AVS encoding via xavs [no]
196   --enable-libxvid         enable Xvid encoding via xvidcore,
197                            native MPEG-4/Xvid encoder exists [no]
198   --enable-mlib            enable Sun medialib [no]
199   --enable-openssl         enable openssl [no]
200   --enable-zlib            enable zlib [autodetect]
201
202 Advanced options (experts only):
203   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
204   --enable-cross-compile   assume a cross-compiler is used
205   --sysroot=PATH           root of cross-build tree
206   --sysinclude=PATH        location of cross-build system headers
207   --target-os=OS           compiler targets OS [$target_os]
208   --target-exec=CMD        command to run executables on target
209   --target-path=DIR        path to view of build directory on target
210   --nm=NM                  use nm tool
211   --ar=AR                  use archive tool AR [$ar_default]
212   --as=AS                  use assembler AS [$as_default]
213   --cc=CC                  use C compiler CC [$cc_default]
214   --ld=LD                  use linker LD
215   --host-cc=HOSTCC         use host C compiler HOSTCC
216   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
217   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
218   --host-libs=HLIBS        use libs HLIBS when linking for host
219   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
220   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
221   --extra-libs=ELIBS       add ELIBS [$ELIBS]
222   --extra-version=STRING   version string suffix []
223   --build-suffix=SUFFIX    library name suffix []
224   --arch=ARCH              select architecture [$arch]
225   --cpu=CPU                select the minimum required CPU (affects
226                            instruction selection, may crash on older CPUs)
227   --disable-asm            disable all assembler optimizations
228   --disable-altivec        disable AltiVec optimizations
229   --disable-amd3dnow       disable 3DNow! optimizations
230   --disable-amd3dnowext    disable 3DNow! extended optimizations
231   --disable-mmx            disable MMX optimizations
232   --disable-mmx2           disable MMX2 optimizations
233   --disable-sse            disable SSE optimizations
234   --disable-ssse3          disable SSSE3 optimizations
235   --disable-avx            disable AVX optimizations
236   --disable-armv5te        disable armv5te optimizations
237   --disable-armv6          disable armv6 optimizations
238   --disable-armv6t2        disable armv6t2 optimizations
239   --disable-armvfp         disable ARM VFP optimizations
240   --disable-iwmmxt         disable iwmmxt optimizations
241   --disable-mmi            disable MMI optimizations
242   --disable-neon           disable neon optimizations
243   --disable-vis            disable VIS optimizations
244   --disable-yasm           disable use of yasm assembler
245   --enable-pic             build position-independent code
246   --malloc-prefix=PFX      prefix malloc and related names with PFX
247   --enable-sram            allow use of on-chip SRAM
248   --disable-symver         disable symbol versioning
249   --optflags               override optimization-related compiler flags
250
251 Developer options (useful when working on Libav itself):
252   --disable-debug          disable debugging symbols
253   --enable-debug=LEVEL     set the debug level [$debuglevel]
254   --disable-optimizations  disable compiler optimizations
255   --enable-extra-warnings  enable more compiler warnings
256   --samples=PATH           location of test samples for FATE, if not set use
257                            \$FATE_SAMPLES at make invocation time.
258
259 NOTE: Object files are built at the place where configure is launched.
260 EOF
261   exit 0
262 }
263
264 quotes='""'
265
266 log(){
267     echo "$@" >> $logfile
268 }
269
270 log_file(){
271     log BEGIN $1
272     pr -n -t $1 >> $logfile
273     log END $1
274 }
275
276 echolog(){
277     log "$@"
278     echo "$@"
279 }
280
281 warn(){
282     log "WARNING: $*"
283     WARNINGS="${WARNINGS}WARNING: $*\n"
284 }
285
286 die(){
287     echolog "$@"
288     cat <<EOF
289
290 If you think configure made a mistake, make sure you are using the latest
291 version from Git.  If the latest version fails, report the problem to the
292 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
293 EOF
294     if disabled logging; then
295         cat <<EOF
296 Rerun configure with logging enabled (do not use --disable-logging), and
297 include the log this produces with your report.
298 EOF
299     else
300 cat <<EOF
301 Include the log file "$logfile" produced by configure as this will help
302 solving the problem.
303 EOF
304     fi
305     exit 1
306 }
307
308 # Avoid locale weirdness, besides we really just want to translate ASCII.
309 toupper(){
310     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
311 }
312
313 tolower(){
314     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
315 }
316
317 c_escape(){
318     echo "$*" | sed 's/["\\]/\\\0/g'
319 }
320
321 sh_quote(){
322     v=$(echo "$1" | sed "s/'/'\\\\''/g")
323     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
324     echo "$v"
325 }
326
327 cleanws(){
328     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
329 }
330
331 filter(){
332     pat=$1
333     shift
334     for v; do
335         eval "case $v in $pat) echo $v ;; esac"
336     done
337 }
338
339 filter_out(){
340     pat=$1
341     shift
342     for v; do
343         eval "case $v in $pat) ;; *) echo $v ;; esac"
344     done
345 }
346
347 map(){
348     m=$1
349     shift
350     for v; do eval $m; done
351 }
352
353 set_all(){
354     value=$1
355     shift
356     for var in $*; do
357         eval $var=$value
358     done
359 }
360
361 set_weak(){
362     value=$1
363     shift
364     for var; do
365         eval : \${$var:=$value}
366     done
367 }
368
369 set_safe(){
370     var=$1
371     shift
372     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
373 }
374
375 get_safe(){
376     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
377 }
378
379 pushvar(){
380     for var in $*; do
381         eval level=\${${var}_level:=0}
382         eval ${var}_${level}="\$$var"
383         eval ${var}_level=$(($level+1))
384     done
385 }
386
387 popvar(){
388     for var in $*; do
389         eval level=\${${var}_level:-0}
390         test $level = 0 && continue
391         eval level=$(($level-1))
392         eval $var="\${${var}_${level}}"
393         eval ${var}_level=$level
394         eval unset ${var}_${level}
395     done
396 }
397
398 enable(){
399     set_all yes $*
400 }
401
402 disable(){
403     set_all no $*
404 }
405
406 enable_weak(){
407     set_weak yes $*
408 }
409
410 disable_weak(){
411     set_weak no $*
412 }
413
414 enable_safe(){
415     for var; do
416         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 disable_safe(){
421     for var; do
422         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
423     done
424 }
425
426 do_enable_deep(){
427     for var; do
428         enabled $var && continue
429         eval sel="\$${var}_select"
430         eval sgs="\$${var}_suggest"
431         pushvar var sgs
432         enable_deep $sel
433         popvar sgs
434         enable_deep_weak $sgs
435         popvar var
436     done
437 }
438
439 enable_deep(){
440     do_enable_deep $*
441     enable $*
442 }
443
444 enable_deep_weak(){
445     do_enable_deep $*
446     enable_weak $*
447 }
448
449 enabled(){
450     test "${1#!}" = "$1" && op== || op=!=
451     eval test "x\$${1#!}" $op "xyes"
452 }
453
454 disabled(){
455     test "${1#!}" = "$1" && op== || op=!=
456     eval test "x\$${1#!}" $op "xno"
457 }
458
459 enabled_all(){
460     for opt; do
461         enabled $opt || return 1
462     done
463 }
464
465 disabled_all(){
466     for opt; do
467         disabled $opt || return 1
468     done
469 }
470
471 enabled_any(){
472     for opt; do
473         enabled $opt && return 0
474     done
475 }
476
477 disabled_any(){
478     for opt; do
479         disabled $opt && return 0
480     done
481     return 1
482 }
483
484 set_default(){
485     for opt; do
486         eval : \${$opt:=\$${opt}_default}
487     done
488 }
489
490 is_in(){
491     value=$1
492     shift
493     for var in $*; do
494         [ $var = $value ] && return 0
495     done
496     return 1
497 }
498
499 check_deps(){
500     for cfg; do
501         cfg="${cfg#!}"
502         enabled ${cfg}_checking && die "Circular dependency for $cfg."
503         disabled ${cfg}_checking && continue
504         enable ${cfg}_checking
505
506         eval dep_all="\$${cfg}_deps"
507         eval dep_any="\$${cfg}_deps_any"
508         eval dep_sel="\$${cfg}_select"
509         eval dep_sgs="\$${cfg}_suggest"
510         eval dep_ifa="\$${cfg}_if"
511         eval dep_ifn="\$${cfg}_if_any"
512
513         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
514         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
515         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
516
517         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
518         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
519         enabled_all  $dep_all || disable $cfg
520         enabled_any  $dep_any || disable $cfg
521         disabled_any $dep_sel && disable $cfg
522
523         if enabled $cfg; then
524             eval dep_extralibs="\$${cfg}_extralibs"
525             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
526             enable_deep $dep_sel
527             enable_deep_weak $dep_sgs
528         fi
529
530         disable ${cfg}_checking
531     done
532 }
533
534 print_config_h(){
535     enabled $1 && v=1 || v=0
536     echo "#define $2 $v"
537 }
538
539 print_config_mak(){
540     enabled $1 && v= || v=!
541     echo "$v$2=yes"
542 }
543
544 print_config_asm(){
545     enabled $1 && echo "%define $2"
546 }
547
548 print_config(){
549     pfx=$1
550     files=$2
551     shift 2
552     for cfg; do
553         ucname="$(toupper $cfg)"
554         for f in $files; do
555             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
556         done
557     done
558 }
559
560 print_enabled(){
561     test "$1" = -n && end=" " && shift || end="\n"
562     suf=$1
563     shift
564     for v; do
565         enabled $v && printf "%s$end" ${v%$suf};
566     done
567 }
568
569 append(){
570     var=$1
571     shift
572     eval "$var=\"\$$var $*\""
573 }
574
575 prepend(){
576     var=$1
577     shift
578     eval "$var=\"$* \$$var\""
579 }
580
581 add_cppflags(){
582     append CPPFLAGS $($filter_cppflags "$@")
583 }
584
585 add_cflags(){
586     append CFLAGS $($filter_cflags "$@")
587 }
588
589 add_asflags(){
590     append ASFLAGS $($filter_asflags "$@")
591 }
592
593 add_ldflags(){
594     append LDFLAGS "$@"
595 }
596
597 add_extralibs(){
598     prepend extralibs "$@"
599 }
600
601 check_cmd(){
602     log "$@"
603     "$@" >> $logfile 2>&1
604 }
605
606 check_cc(){
607     log check_cc "$@"
608     cat > $TMPC
609     log_file $TMPC
610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
611 }
612
613 check_cpp(){
614     log check_cpp "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
618 }
619
620 check_as(){
621     log check_as "$@"
622     cat > $TMPC
623     log_file $TMPC
624     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
625 }
626
627 check_asm(){
628     log check_asm "$@"
629     name="$1"
630     code="$2"
631     shift 2
632     disable $name
633     check_as "$@" <<EOF && enable $name
634 void foo(void){ __asm__ volatile($code); }
635 EOF
636 }
637
638 check_yasm(){
639     log check_yasm "$@"
640     echo "$1" > $TMPS
641     log_file $TMPS
642     shift 1
643     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
644 }
645
646 check_ld(){
647     log check_ld "$@"
648     flags=''
649     libs=''
650     for f; do
651         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
652     done
653     check_cc $($filter_cflags $flags) || return
654     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
655 }
656
657 check_cppflags(){
658     log check_cppflags "$@"
659     set -- $($filter_cppflags "$@")
660     check_cc "$@" <<EOF && append CPPFLAGS "$@"
661 int x;
662 EOF
663 }
664
665 check_cflags(){
666     log check_cflags "$@"
667     set -- $($filter_cflags "$@")
668     check_cc "$@" <<EOF && append CFLAGS "$@"
669 int x;
670 EOF
671 }
672
673 test_ldflags(){
674     log test_ldflags "$@"
675     check_ld "$@" <<EOF
676 int main(void){ return 0; }
677 EOF
678 }
679
680 check_ldflags(){
681     log check_ldflags "$@"
682     test_ldflags "$@" && add_ldflags "$@"
683 }
684
685 check_header(){
686     log check_header "$@"
687     header=$1
688     shift
689     disable_safe $header
690     check_cpp "$@" <<EOF && enable_safe $header
691 #include <$header>
692 int x;
693 EOF
694 }
695
696 check_func(){
697     log check_func "$@"
698     func=$1
699     shift
700     disable $func
701     check_ld "$@" <<EOF && enable $func
702 extern int $func();
703 int main(void){ $func(); }
704 EOF
705 }
706
707 check_mathfunc(){
708     log check_mathfunc "$@"
709     func=$1
710     shift
711     disable $func
712     check_ld "$@" <<EOF && enable $func
713 #include <math.h>
714 float foo(float f) { return $func(f); }
715 int main(void){ return 0; }
716 EOF
717 }
718
719 check_func_headers(){
720     log check_func_headers "$@"
721     headers=$1
722     funcs=$2
723     shift 2
724     {
725         for hdr in $headers; do
726             echo "#include <$hdr>"
727         done
728         for func in $funcs; do
729             echo "long check_$func(void) { return (long) $func; }"
730         done
731         echo "int main(void) { return 0; }"
732     } | check_ld "$@" && enable $funcs && enable_safe $headers
733 }
734
735 check_cpp_condition(){
736     log check_cpp_condition "$@"
737     header=$1
738     condition=$2
739     shift 2
740     check_cpp $($filter_cppflags "$@") <<EOF
741 #include <$header>
742 #if !($condition)
743 #error "unsatisfied condition: $condition"
744 #endif
745 EOF
746 }
747
748 check_lib(){
749     log check_lib "$@"
750     header="$1"
751     func="$2"
752     shift 2
753     check_header $header && check_func $func "$@" && add_extralibs "$@"
754 }
755
756 check_lib2(){
757     log check_lib2 "$@"
758     headers="$1"
759     funcs="$2"
760     shift 2
761     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
762 }
763
764 check_pkg_config(){
765     log check_pkg_config "$@"
766     pkg="$1"
767     headers="$2"
768     funcs="$3"
769     shift 3
770     $pkg_config --exists $pkg || return
771     pkg_cflags=$($pkg_config --cflags $pkg)
772     pkg_libs=$($pkg_config --libs $pkg)
773     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
774         set_safe ${pkg}_cflags $pkg_cflags   &&
775         set_safe ${pkg}_libs   $pkg_libs
776 }
777
778 check_exec(){
779     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
780 }
781
782 check_exec_crash(){
783     code=$(cat)
784
785     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
786     # are safe but may not be available everywhere.  Thus we use
787     # raise(SIGTERM) instead.  The check is run in a subshell so we
788     # can redirect the "Terminated" message from the shell.  SIGBUS
789     # is not defined by standard C so it is used conditionally.
790
791     (check_exec "$@") >> $logfile 2>&1 <<EOF
792 #include <signal.h>
793 static void sighandler(int sig){
794     raise(SIGTERM);
795 }
796 int main(void){
797     signal(SIGILL, sighandler);
798     signal(SIGFPE, sighandler);
799     signal(SIGSEGV, sighandler);
800 #ifdef SIGBUS
801     signal(SIGBUS, sighandler);
802 #endif
803     { $code }
804 }
805 EOF
806 }
807
808 check_type(){
809     log check_type "$@"
810     headers=$1
811     type=$2
812     shift 2
813     disable_safe "$type"
814     incs=""
815     for hdr in $headers; do
816         incs="$incs
817 #include <$hdr>"
818     done
819     check_cc "$@" <<EOF && enable_safe "$type"
820 $incs
821 $type v;
822 EOF
823 }
824
825 check_struct(){
826     log check_type "$@"
827     headers=$1
828     struct=$2
829     member=$3
830     shift 3
831     disable_safe "${struct}_${member}"
832     incs=""
833     for hdr in $headers; do
834         incs="$incs
835 #include <$hdr>"
836     done
837     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
838 $incs
839 const void *p = &(($struct *)0)->$member;
840 EOF
841 }
842
843 require(){
844     name="$1"
845     header="$2"
846     func="$3"
847     shift 3
848     check_lib $header $func "$@" || die "ERROR: $name not found"
849 }
850
851 require2(){
852     name="$1"
853     headers="$2"
854     func="$3"
855     shift 3
856     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
857 }
858
859 require_pkg_config(){
860     pkg="$1"
861     check_pkg_config "$@" || die "ERROR: $pkg not found"
862     add_cflags    $(get_safe ${pkg}_cflags)
863     add_extralibs $(get_safe ${pkg}_libs)
864 }
865
866 check_host_cc(){
867     log check_host_cc "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
871 }
872
873 check_host_cflags(){
874     log check_host_cflags "$@"
875     check_host_cc "$@" <<EOF && append host_cflags "$@"
876 int x;
877 EOF
878 }
879
880 apply(){
881     file=$1
882     shift
883     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
884 }
885
886 cp_if_changed(){
887     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
888     mkdir -p "$(dirname $2)"
889     cp -f "$1" "$2"
890 }
891
892 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
893 # system-dependent things.
894
895 COMPONENT_LIST="
896     bsfs
897     decoders
898     demuxers
899     encoders
900     filters
901     hwaccels
902     indevs
903     muxers
904     outdevs
905     parsers
906     protocols
907 "
908
909 PROGRAM_LIST="
910     avconv
911     avplay
912     avprobe
913     avserver
914     ffmpeg
915 "
916
917 CONFIG_LIST="
918     $COMPONENT_LIST
919     $PROGRAM_LIST
920     aandct
921     ac3dsp
922     avcodec
923     avdevice
924     avfilter
925     avformat
926     avisynth
927     bzlib
928     dct
929     doc
930     dwt
931     dxva2
932     fastdiv
933     fft
934     frei0r
935     gnutls
936     golomb
937     gpl
938     gray
939     h264chroma
940     h264dsp
941     h264pred
942     hardcoded_tables
943     huffman
944     libcdio
945     libdc1394
946     libdirac
947     libfaac
948     libfreetype
949     libgsm
950     libmp3lame
951     libnut
952     libopencore_amrnb
953     libopencore_amrwb
954     libopencv
955     libopenjpeg
956     libpulse
957     librtmp
958     libschroedinger
959     libspeex
960     libtheora
961     libvo_aacenc
962     libvo_amrwbenc
963     libvorbis
964     libvpx
965     libx264
966     libxavs
967     libxvid
968     lpc
969     lsp
970     mdct
971     memalign_hack
972     mlib
973     mpegaudiodsp
974     network
975     nonfree
976     openssl
977     pic
978     postproc
979     rdft
980     rtpdec
981     runtime_cpudetect
982     safe_bitstream_reader
983     shared
984     sinewin
985     small
986     sram
987     static
988     swscale
989     swscale_alpha
990     thumb
991     vaapi
992     vda
993     vdpau
994     version3
995     x11grab
996     zlib
997 "
998
999 THREADS_LIST='
1000     pthreads
1001     w32threads
1002 '
1003
1004 ARCH_LIST='
1005     alpha
1006     arm
1007     avr32
1008     avr32_ap
1009     avr32_uc
1010     bfin
1011     ia64
1012     m68k
1013     mips
1014     mips64
1015     parisc
1016     ppc
1017     ppc64
1018     s390
1019     sh4
1020     sparc
1021     sparc64
1022     tomi
1023     x86
1024     x86_32
1025     x86_64
1026 '
1027
1028 ARCH_EXT_LIST='
1029     altivec
1030     amd3dnow
1031     amd3dnowext
1032     armv5te
1033     armv6
1034     armv6t2
1035     armvfp
1036     avx
1037     iwmmxt
1038     mmi
1039     mmx
1040     mmx2
1041     neon
1042     ppc4xx
1043     sse
1044     ssse3
1045     vfpv3
1046     vis
1047 '
1048
1049 HAVE_LIST_PUB='
1050     bigendian
1051     fast_unaligned
1052 '
1053
1054 HAVE_LIST="
1055     $ARCH_EXT_LIST
1056     $HAVE_LIST_PUB
1057     $THREADS_LIST
1058     aligned_stack
1059     alsa_asoundlib_h
1060     altivec_h
1061     arpa_inet_h
1062     asm_mod_y
1063     attribute_may_alias
1064     attribute_packed
1065     closesocket
1066     cmov
1067     dcbzl
1068     dev_bktr_ioctl_bt848_h
1069     dev_bktr_ioctl_meteor_h
1070     dev_ic_bt8xx_h
1071     dev_video_bktr_ioctl_bt848_h
1072     dev_video_meteor_ioctl_meteor_h
1073     dlfcn_h
1074     dlopen
1075     dos_paths
1076     ebp_available
1077     ebx_available
1078     exp2
1079     exp2f
1080     fast_64bit
1081     fast_clz
1082     fast_cmov
1083     fcntl
1084     fork
1085     getaddrinfo
1086     gethrtime
1087     GetProcessMemoryInfo
1088     GetProcessTimes
1089     GetSystemInfo
1090     getrusage
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     isatty
1096     ldbrx
1097     libdc1394_1
1098     libdc1394_2
1099     llrint
1100     llrintf
1101     local_aligned_16
1102     local_aligned_8
1103     localtime_r
1104     log2
1105     log2f
1106     loongson
1107     lrint
1108     lrintf
1109     lzo1x_999_compress
1110     machine_ioctl_bt848_h
1111     machine_ioctl_meteor_h
1112     malloc_h
1113     MapViewOfFile
1114     memalign
1115     mkstemp
1116     mmap
1117     poll_h
1118     posix_memalign
1119     round
1120     roundf
1121     sched_getaffinity
1122     sdl
1123     sdl_video_size
1124     setmode
1125     setrlimit
1126     sndio_h
1127     socklen_t
1128     soundcard_h
1129     strerror_r
1130     strptime
1131     strtok_r
1132     struct_addrinfo
1133     struct_ipv6_mreq
1134     struct_rusage_ru_maxrss
1135     struct_sockaddr_in6
1136     struct_sockaddr_sa_len
1137     struct_sockaddr_storage
1138     symver
1139     symver_asm_label
1140     symver_gnu_asm
1141     sysctl
1142     sys_mman_h
1143     sys_resource_h
1144     sys_select_h
1145     sys_soundcard_h
1146     sys_videoio_h
1147     threads
1148     trunc
1149     truncf
1150     vfp_args
1151     VirtualAlloc
1152     winsock2_h
1153     xform_asm
1154     xmm_clobbers
1155     yasm
1156 "
1157
1158 # options emitted with CONFIG_ prefix but not available on command line
1159 CONFIG_EXTRA="
1160     avutil
1161     gplv3
1162     lgplv3
1163 "
1164
1165 CMDLINE_SELECT="
1166     $ARCH_EXT_LIST
1167     $CONFIG_LIST
1168     $THREADS_LIST
1169     asm
1170     cross_compile
1171     debug
1172     extra_warnings
1173     logging
1174     optimizations
1175     symver
1176     yasm
1177 "
1178
1179 PATHS_LIST='
1180     bindir
1181     datadir
1182     incdir
1183     libdir
1184     mandir
1185     prefix
1186     shlibdir
1187 '
1188
1189 CMDLINE_SET="
1190     $PATHS_LIST
1191     ar
1192     arch
1193     as
1194     build_suffix
1195     cc
1196     cpu
1197     cross_prefix
1198     dep_cc
1199     extra_version
1200     host_cc
1201     host_cflags
1202     host_ldflags
1203     host_libs
1204     host_os
1205     ld
1206     logfile
1207     malloc_prefix
1208     nm
1209     optflags
1210     pkg_config
1211     samples
1212     sysinclude
1213     sysroot
1214     target_exec
1215     target_os
1216     target_path
1217 "
1218
1219 CMDLINE_APPEND="
1220     extra_cflags
1221 "
1222
1223 # code dependency declarations
1224
1225 # architecture extensions
1226
1227 armv5te_deps="arm"
1228 armv6_deps="arm"
1229 armv6t2_deps="arm"
1230 armvfp_deps="arm"
1231 iwmmxt_deps="arm"
1232 neon_deps="arm"
1233 vfpv3_deps="armvfp"
1234
1235 mmi_deps="mips"
1236
1237 altivec_deps="ppc"
1238 ppc4xx_deps="ppc"
1239
1240 vis_deps="sparc"
1241
1242 x86_64_suggest="cmov fast_cmov"
1243 amd3dnow_deps="mmx"
1244 amd3dnowext_deps="amd3dnow"
1245 mmx_deps="x86"
1246 mmx2_deps="mmx"
1247 sse_deps="mmx"
1248 ssse3_deps="sse"
1249 avx_deps="ssse3"
1250
1251 aligned_stack_if_any="ppc x86"
1252 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1253 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1254 fast_unaligned_if_any="armv6 ppc x86"
1255
1256 inline_asm_deps="!tms470"
1257 need_memalign="altivec neon sse"
1258
1259 symver_if_any="symver_asm_label symver_gnu_asm"
1260
1261 # subsystems
1262 dct_select="rdft"
1263 mdct_select="fft"
1264 rdft_select="fft"
1265 mpegaudiodsp_select="dct"
1266
1267 # decoders / encoders / hardware accelerators
1268 aac_decoder_select="mdct sinewin"
1269 aac_encoder_select="mdct sinewin"
1270 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1271 ac3_decoder_select="mdct ac3dsp ac3_parser"
1272 ac3_encoder_select="mdct ac3dsp"
1273 ac3_fixed_encoder_select="mdct ac3dsp"
1274 alac_encoder_select="lpc"
1275 amrnb_decoder_select="lsp"
1276 amrwb_decoder_select="lsp"
1277 atrac1_decoder_select="mdct sinewin"
1278 atrac3_decoder_select="mdct"
1279 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1280 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1281 cavs_decoder_select="golomb"
1282 cook_decoder_select="mdct sinewin"
1283 cscd_decoder_suggest="zlib"
1284 dca_decoder_select="mdct"
1285 dnxhd_encoder_select="aandct"
1286 dxa_decoder_select="zlib"
1287 eac3_decoder_select="ac3_decoder"
1288 eac3_encoder_select="mdct ac3dsp"
1289 eamad_decoder_select="aandct"
1290 eatgq_decoder_select="aandct"
1291 eatqi_decoder_select="aandct"
1292 ffv1_decoder_select="golomb"
1293 flac_decoder_select="golomb"
1294 flac_encoder_select="golomb lpc"
1295 flashsv_decoder_select="zlib"
1296 flashsv_encoder_select="zlib"
1297 flashsv2_decoder_select="zlib"
1298 flv_decoder_select="h263_decoder"
1299 flv_encoder_select="h263_encoder"
1300 fraps_decoder_select="huffman"
1301 h261_encoder_select="aandct"
1302 h263_decoder_select="h263_parser"
1303 h263_encoder_select="aandct"
1304 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1305 h263i_decoder_select="h263_decoder"
1306 h263p_encoder_select="h263_encoder"
1307 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1308 h264_dxva2_hwaccel_deps="dxva2api_h"
1309 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1310 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1311 h264_vda_hwaccel_select="vda h264_decoder"
1312 h264_vdpau_decoder_select="vdpau h264_decoder"
1313 imc_decoder_select="fft mdct sinewin"
1314 jpegls_decoder_select="golomb"
1315 jpegls_encoder_select="golomb"
1316 ljpeg_encoder_select="aandct"
1317 loco_decoder_select="golomb"
1318 mjpeg_encoder_select="aandct"
1319 mlp_decoder_select="mlp_parser"
1320 mp1_decoder_select="mpegaudiodsp"
1321 mp1float_decoder_select="mpegaudiodsp"
1322 mp2_decoder_select="mpegaudiodsp"
1323 mp2float_decoder_select="mpegaudiodsp"
1324 mp3_decoder_select="mpegaudiodsp"
1325 mp3adu_decoder_select="mpegaudiodsp"
1326 mp3adufloat_decoder_select="mpegaudiodsp"
1327 mp3float_decoder_select="mpegaudiodsp"
1328 mp3on4_decoder_select="mpegaudiodsp"
1329 mp3on4float_decoder_select="mpegaudiodsp"
1330 mpc7_decoder_select="mpegaudiodsp"
1331 mpc8_decoder_select="mpegaudiodsp"
1332 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1333 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1334 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1335 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1336 mpeg1video_encoder_select="aandct"
1337 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1338 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1339 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1340 mpeg2video_encoder_select="aandct"
1341 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1342 mpeg4_encoder_select="h263_encoder"
1343 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1344 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1345 msmpeg4v1_decoder_select="h263_decoder"
1346 msmpeg4v1_encoder_select="h263_encoder"
1347 msmpeg4v2_decoder_select="h263_decoder"
1348 msmpeg4v2_encoder_select="h263_encoder"
1349 msmpeg4v3_decoder_select="h263_decoder"
1350 msmpeg4v3_encoder_select="h263_encoder"
1351 nellymoser_decoder_select="mdct sinewin"
1352 nellymoser_encoder_select="mdct sinewin"
1353 png_decoder_select="zlib"
1354 png_encoder_select="zlib"
1355 qcelp_decoder_select="lsp"
1356 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1357 ra_144_encoder_select="lpc"
1358 rv10_decoder_select="h263_decoder"
1359 rv10_encoder_select="h263_encoder"
1360 rv20_decoder_select="h263_decoder"
1361 rv20_encoder_select="h263_encoder"
1362 rv30_decoder_select="golomb h264chroma h264pred"
1363 rv40_decoder_select="golomb h264chroma h264pred"
1364 shorten_decoder_select="golomb"
1365 sipr_decoder_select="lsp"
1366 snow_decoder_select="dwt"
1367 snow_encoder_select="aandct dwt"
1368 svq1_encoder_select="aandct"
1369 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1370 svq3_decoder_suggest="zlib"
1371 theora_decoder_select="vp3_decoder"
1372 tiff_decoder_suggest="zlib"
1373 tiff_encoder_suggest="zlib"
1374 truehd_decoder_select="mlp_decoder"
1375 tscc_decoder_select="zlib"
1376 twinvq_decoder_select="mdct lsp sinewin"
1377 vc1_decoder_select="h263_decoder h264chroma"
1378 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1379 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1380 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1381 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1382 vc1image_decoder_select="vc1_decoder"
1383 vorbis_decoder_select="mdct"
1384 vorbis_encoder_select="mdct"
1385 vp6_decoder_select="huffman"
1386 vp6a_decoder_select="vp6_decoder"
1387 vp6f_decoder_select="vp6_decoder"
1388 vp8_decoder_select="h264pred"
1389 wmapro_decoder_select="mdct sinewin"
1390 wmav1_decoder_select="mdct sinewin"
1391 wmav1_encoder_select="mdct sinewin"
1392 wmav2_decoder_select="mdct sinewin"
1393 wmav2_encoder_select="mdct sinewin"
1394 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1395 wmv1_decoder_select="h263_decoder"
1396 wmv1_encoder_select="h263_encoder"
1397 wmv2_decoder_select="h263_decoder"
1398 wmv2_encoder_select="h263_encoder"
1399 wmv3_decoder_select="vc1_decoder"
1400 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1401 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1402 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1403 wmv3image_decoder_select="wmv3_decoder"
1404 zlib_decoder_select="zlib"
1405 zlib_encoder_select="zlib"
1406 zmbv_decoder_select="zlib"
1407 zmbv_encoder_select="zlib"
1408
1409 vaapi_deps="va_va_h"
1410 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1411 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1412
1413 # parsers
1414 h264_parser_select="golomb h264chroma h264dsp h264pred"
1415
1416 # external libraries
1417 libdirac_decoder_deps="libdirac !libschroedinger"
1418 libdirac_encoder_deps="libdirac"
1419 libfaac_encoder_deps="libfaac"
1420 libgsm_decoder_deps="libgsm"
1421 libgsm_encoder_deps="libgsm"
1422 libgsm_ms_decoder_deps="libgsm"
1423 libgsm_ms_encoder_deps="libgsm"
1424 libmp3lame_encoder_deps="libmp3lame"
1425 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1426 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1427 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1428 libopenjpeg_decoder_deps="libopenjpeg"
1429 libschroedinger_decoder_deps="libschroedinger"
1430 libschroedinger_encoder_deps="libschroedinger"
1431 libspeex_decoder_deps="libspeex"
1432 libspeex_encoder_deps="libspeex"
1433 libtheora_encoder_deps="libtheora"
1434 libvo_aacenc_encoder_deps="libvo_aacenc"
1435 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1436 libvorbis_encoder_deps="libvorbis"
1437 libvpx_decoder_deps="libvpx"
1438 libvpx_encoder_deps="libvpx"
1439 libx264_encoder_deps="libx264"
1440 libxavs_encoder_deps="libxavs"
1441 libxvid_encoder_deps="libxvid"
1442
1443 # demuxers / muxers
1444 ac3_demuxer_select="ac3_parser"
1445 asf_stream_muxer_select="asf_muxer"
1446 avisynth_demuxer_deps="avisynth"
1447 dirac_demuxer_select="dirac_parser"
1448 eac3_demuxer_select="ac3_parser"
1449 flac_demuxer_select="flac_parser"
1450 ipod_muxer_select="mov_muxer"
1451 libnut_demuxer_deps="libnut"
1452 libnut_muxer_deps="libnut"
1453 matroska_audio_muxer_select="matroska_muxer"
1454 matroska_demuxer_suggest="zlib bzlib"
1455 mov_demuxer_suggest="zlib"
1456 mp3_demuxer_select="mpegaudio_parser"
1457 mp4_muxer_select="mov_muxer"
1458 mpegtsraw_demuxer_select="mpegts_demuxer"
1459 mxf_d10_muxer_select="mxf_muxer"
1460 ogg_demuxer_select="golomb"
1461 psp_muxer_select="mov_muxer"
1462 rtp_demuxer_select="sdp_demuxer"
1463 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1464 rtsp_demuxer_select="http_protocol rtpdec"
1465 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1466 sap_demuxer_select="sdp_demuxer"
1467 sap_muxer_select="rtp_muxer rtp_protocol"
1468 sdp_demuxer_select="rtpdec"
1469 spdif_muxer_select="aac_parser"
1470 tg2_muxer_select="mov_muxer"
1471 tgp_muxer_select="mov_muxer"
1472 w64_demuxer_deps="wav_demuxer"
1473
1474 # indevs / outdevs
1475 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1476 alsa_outdev_deps="alsa_asoundlib_h"
1477 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1478 dv1394_indev_deps="dv1394 dv_demuxer"
1479 fbdev_indev_deps="linux_fb_h"
1480 jack_indev_deps="jack_jack_h"
1481 libcdio_indev_deps="libcdio"
1482 libdc1394_indev_deps="libdc1394"
1483 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1484 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1485 pulse_indev_deps="libpulse"
1486 sndio_indev_deps="sndio_h"
1487 sndio_outdev_deps="sndio_h"
1488 v4l_indev_deps="linux_videodev_h"
1489 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1490 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1491 vfwcap_indev_extralibs="-lavicap32"
1492 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1493 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1494
1495 # protocols
1496 gopher_protocol_deps="network"
1497 httpproxy_protocol_deps="network"
1498 httpproxy_protocol_select="tcp_protocol"
1499 http_protocol_deps="network"
1500 http_protocol_select="tcp_protocol"
1501 https_protocol_select="tls_protocol"
1502 mmsh_protocol_select="http_protocol"
1503 mmst_protocol_deps="network"
1504 rtmp_protocol_select="tcp_protocol"
1505 rtp_protocol_select="udp_protocol"
1506 tcp_protocol_deps="network"
1507 tls_protocol_deps_any="openssl gnutls"
1508 tls_protocol_select="tcp_protocol"
1509 udp_protocol_deps="network"
1510
1511 # filters
1512 blackframe_filter_deps="gpl"
1513 boxblur_filter_deps="gpl"
1514 cropdetect_filter_deps="gpl"
1515 delogo_filter_deps="gpl"
1516 drawtext_filter_deps="libfreetype"
1517 frei0r_filter_deps="frei0r dlopen strtok_r"
1518 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1519 hqdn3d_filter_deps="gpl"
1520 ocv_filter_deps="libopencv"
1521 scale_filter_deps="swscale"
1522 yadif_filter_deps="gpl"
1523
1524 # libraries
1525 avdevice_deps="avcodec avformat"
1526 avformat_deps="avcodec"
1527 postproc_deps="gpl"
1528
1529 # programs
1530 avconv_deps="avcodec avformat swscale"
1531 avplay_deps="avcodec avformat swscale sdl"
1532 avplay_select="rdft"
1533 avprobe_deps="avcodec avformat"
1534 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1535 avserver_extralibs='$ldl'
1536 ffmpeg_deps="avcodec avformat swscale"
1537
1538 doc_deps="texi2html"
1539
1540 # tests
1541
1542 test_deps(){
1543     suf1=$1
1544     suf2=$2
1545     shift 2
1546     for v; do
1547         dep=${v%=*}
1548         tests=${v#*=}
1549         for name in ${tests}; do
1550             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1551         done
1552     done
1553 }
1554
1555 mxf_d10_test_deps="avfilter"
1556 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1557
1558 test_deps _encoder _decoder                                             \
1559     adpcm_ima_qt                                                        \
1560     adpcm_ima_wav                                                       \
1561     adpcm_ms                                                            \
1562     adpcm_swf                                                           \
1563     adpcm_yamaha=adpcm_yam                                              \
1564     alac                                                                \
1565     asv1                                                                \
1566     asv2                                                                \
1567     bmp                                                                 \
1568     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1569     dvvideo="dv dv_411 dv50"                                            \
1570     ffv1                                                                \
1571     flac                                                                \
1572     flashsv                                                             \
1573     flv                                                                 \
1574     adpcm_g726=g726                                                     \
1575     gif                                                                 \
1576     h261                                                                \
1577     h263="h263 h263p"                                                   \
1578     huffyuv                                                             \
1579     jpegls                                                              \
1580     mjpeg="jpg mjpeg ljpeg"                                             \
1581     mp2                                                                 \
1582     mpeg1video="mpeg mpeg1b"                                            \
1583     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1584     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1585     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1586     mpeg4="mpeg4thread error rc"                                        \
1587     msmpeg4v3=msmpeg4                                                   \
1588     msmpeg4v2                                                           \
1589     pbm=pbmpipe                                                         \
1590     pcx                                                                 \
1591     pgm="pgm pgmpipe"                                                   \
1592     png                                                                 \
1593     ppm="ppm ppmpipe"                                                   \
1594     rawvideo="rgb yuv"                                                  \
1595     roq                                                                 \
1596     rv10                                                                \
1597     rv20                                                                \
1598     sgi                                                                 \
1599     snow="snow snowll"                                                  \
1600     svq1                                                                \
1601     targa=tga                                                           \
1602     tiff                                                                \
1603     wmav1                                                               \
1604     wmav2                                                               \
1605     wmv1                                                                \
1606     wmv2                                                                \
1607
1608 test_deps _muxer _demuxer                                               \
1609     aiff                                                                \
1610     pcm_alaw=alaw                                                       \
1611     asf                                                                 \
1612     au                                                                  \
1613     avi                                                                 \
1614     dv=dv_fmt                                                           \
1615     ffm                                                                 \
1616     flv=flv_fmt                                                         \
1617     gxf                                                                 \
1618     matroska=mkv                                                        \
1619     mmf                                                                 \
1620     mov                                                                 \
1621     pcm_mulaw=mulaw                                                     \
1622     mxf="mxf mxf_d10"                                                   \
1623     nut                                                                 \
1624     ogg                                                                 \
1625     rawvideo=pixfmt                                                     \
1626     rm                                                                  \
1627     swf                                                                 \
1628     mpegts=ts                                                           \
1629     voc                                                                 \
1630     wav                                                                 \
1631     yuv4mpegpipe=yuv4mpeg                                               \
1632
1633 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1634 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1635
1636 # default parameters
1637
1638 logfile="config.log"
1639
1640 # installation paths
1641 prefix_default="/usr/local"
1642 bindir_default='${prefix}/bin'
1643 datadir_default='${prefix}/share/avconv'
1644 incdir_default='${prefix}/include'
1645 libdir_default='${prefix}/lib'
1646 mandir_default='${prefix}/share/man'
1647 shlibdir_default="$libdir_default"
1648
1649 # toolchain
1650 ar_default="ar"
1651 cc_default="gcc"
1652 cc_version=\"unknown\"
1653 host_cc_default="gcc"
1654 ln_s="ln -sf"
1655 nm_default="nm"
1656 objformat="elf"
1657 pkg_config_default=pkg-config
1658 ranlib="ranlib"
1659 yasmexe="yasm"
1660
1661 nm_opts='-g'
1662 nogas=":"
1663
1664 # machine
1665 arch_default=$(uname -m)
1666 cpu="generic"
1667
1668 # OS
1669 target_os_default=$(tolower $(uname -s))
1670 host_os=$target_os_default
1671
1672 # configurable options
1673 enable $PROGRAM_LIST
1674
1675 enable avcodec
1676 enable avdevice
1677 enable avfilter
1678 enable avformat
1679 enable avutil
1680 enable postproc
1681 enable swscale
1682
1683 enable asm
1684 enable debug
1685 enable doc
1686 enable fastdiv
1687 enable network
1688 enable optimizations
1689 enable safe_bitstream_reader
1690 enable static
1691 enable swscale_alpha
1692
1693 # build settings
1694 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1695 AVSERVERLDFLAGS=-Wl,-E
1696 LIBPREF="lib"
1697 LIBSUF=".a"
1698 FULLNAME='$(NAME)$(BUILDSUF)'
1699 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1700 SLIBPREF="lib"
1701 SLIBSUF=".so"
1702 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1703 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1704 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1705 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1706 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1707 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1708
1709 AS_O='-o $@'
1710 CC_O='-o $@'
1711
1712 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1713 host_libs='-lm'
1714
1715 target_path='$(CURDIR)'
1716
1717 # since the object filename is not given with the -MM flag, the compiler
1718 # is only able to print the basename, and we must add the path ourselves
1719 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1720 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1721
1722 # find source path
1723 if test -f configure; then
1724     source_path=.
1725 else
1726     source_path=$(cd $(dirname "$0"); pwd)
1727     echo "$source_path" | grep -q '[[:blank:]]' &&
1728         die "Out of tree builds are impossible with whitespace in source path."
1729     test -e "$source_path/config.h" &&
1730         die "Out of tree builds are impossible with config.h in source dir."
1731 fi
1732
1733 for v in "$@"; do
1734     r=${v#*=}
1735     l=${v%"$r"}
1736     r=$(sh_quote "$r")
1737     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1738 done
1739
1740 find_things(){
1741     thing=$1
1742     pattern=$2
1743     file=$source_path/$3
1744     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1745 }
1746
1747 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1748 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1749 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1750 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1751 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1752 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1753 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1754 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1755 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1756 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1757 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1758
1759 ALL_COMPONENTS="
1760     $BSF_LIST
1761     $DECODER_LIST
1762     $DEMUXER_LIST
1763     $ENCODER_LIST
1764     $FILTER_LIST
1765     $HWACCEL_LIST
1766     $INDEV_LIST
1767     $MUXER_LIST
1768     $OUTDEV_LIST
1769     $PARSER_LIST
1770     $PROTOCOL_LIST
1771 "
1772
1773 find_tests(){
1774     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1775 }
1776
1777 ACODEC_TESTS=$(find_tests acodec)
1778 VCODEC_TESTS=$(find_tests vsynth1)
1779 LAVF_TESTS=$(find_tests lavf)
1780 LAVFI_TESTS=$(find_tests lavfi)
1781 SEEK_TESTS=$(find_tests seek seek_)
1782
1783 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1784
1785 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1786
1787 for n in $COMPONENT_LIST; do
1788     v=$(toupper ${n%s})_LIST
1789     eval enable \$$v
1790     eval ${n}_if_any="\$$v"
1791 done
1792
1793 enable $ARCH_EXT_LIST $ALL_TESTS
1794
1795 die_unknown(){
1796     echo "Unknown option \"$1\"."
1797     echo "See $0 --help for available options."
1798     exit 1
1799 }
1800
1801 show_list() {
1802     suffix=_$1
1803     shift
1804     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1805     exit 0
1806 }
1807
1808 for opt do
1809     optval="${opt#*=}"
1810     case "$opt" in
1811     --extra-ldflags=*) add_ldflags $optval
1812     ;;
1813     --extra-libs=*) add_extralibs $optval
1814     ;;
1815     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1816     ;;
1817     --enable-debug=*) debuglevel="$optval"
1818     ;;
1819     --disable-everything)
1820     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1821     ;;
1822     --enable-*=*|--disable-*=*)
1823     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1824     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1825     eval list=\$$(toupper $thing)_LIST
1826     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1827     $action $(filter "$name" $list)
1828     ;;
1829     --enable-?*|--disable-?*)
1830     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1831     if is_in $option $COMPONENT_LIST; then
1832         test $action = disable && action=unset
1833         eval $action \$$(toupper ${option%s})_LIST
1834     elif is_in $option $CMDLINE_SELECT; then
1835         $action $option
1836     else
1837         die_unknown $opt
1838     fi
1839     ;;
1840     --list-*)
1841         NAME="${opt#--list-}"
1842         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1843         NAME=${NAME%s}
1844         eval show_list $NAME \$$(toupper $NAME)_LIST
1845     ;;
1846     --help|-h) show_help
1847     ;;
1848     *)
1849     optname="${opt%%=*}"
1850     optname="${optname#--}"
1851     optname=$(echo "$optname" | sed 's/-/_/g')
1852     if is_in $optname $CMDLINE_SET; then
1853         eval $optname='$optval'
1854     elif is_in $optname $CMDLINE_APPEND; then
1855         append $optname "$optval"
1856     else
1857          die_unknown $opt
1858     fi
1859     ;;
1860     esac
1861 done
1862
1863 disabled logging && logfile=/dev/null
1864
1865 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1866 set >> $logfile
1867
1868 test -n "$cross_prefix" && enable cross_compile
1869
1870 if enabled cross_compile; then
1871     test -n "$arch" && test -n "$target_os" ||
1872         die "Must specify target arch and OS when cross-compiling"
1873 fi
1874
1875 set_default arch target_os
1876
1877 ar_default="${cross_prefix}${ar_default}"
1878 cc_default="${cross_prefix}${cc_default}"
1879 nm_default="${cross_prefix}${nm_default}"
1880 pkg_config_default="${cross_prefix}${pkg_config_default}"
1881 ranlib="${cross_prefix}${ranlib}"
1882
1883 sysinclude_default="${sysroot}/usr/include"
1884
1885 set_default cc nm pkg_config sysinclude
1886 enabled cross_compile || host_cc_default=$cc
1887 set_default host_cc
1888
1889 if ! $pkg_config --version >/dev/null 2>&1; then
1890     warn "$pkg_config not found, library detection may fail."
1891     pkg_config=false
1892 fi
1893
1894 exesuf() {
1895     case $1 in
1896         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1897     esac
1898 }
1899
1900 EXESUF=$(exesuf $target_os)
1901 HOSTEXESUF=$(exesuf $host_os)
1902
1903 # set temporary file name
1904 : ${TMPDIR:=$TEMPDIR}
1905 : ${TMPDIR:=$TMP}
1906 : ${TMPDIR:=/tmp}
1907
1908 if ! check_cmd mktemp -u XXXXXX; then
1909     # simple replacement for missing mktemp
1910     # NOT SAFE FOR GENERAL USE
1911     mktemp(){
1912         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1913     }
1914 fi
1915
1916 tmpfile(){
1917     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1918         (set -C; exec > $tmp) 2>/dev/null ||
1919         die "Unable to create temporary file in $TMPDIR."
1920     append TMPFILES $tmp
1921     eval $1=$tmp
1922 }
1923
1924 trap 'rm -f -- $TMPFILES' EXIT
1925
1926 tmpfile TMPASM .asm
1927 tmpfile TMPC   .c
1928 tmpfile TMPE   $EXESUF
1929 tmpfile TMPH   .h
1930 tmpfile TMPO   .o
1931 tmpfile TMPS   .S
1932 tmpfile TMPSH  .sh
1933 tmpfile TMPV   .ver
1934
1935 unset -f mktemp
1936
1937 chmod +x $TMPE
1938
1939 # make sure we can execute files in $TMPDIR
1940 cat > $TMPSH 2>> $logfile <<EOF
1941 #! /bin/sh
1942 EOF
1943 chmod +x $TMPSH >> $logfile 2>&1
1944 if ! $TMPSH >> $logfile 2>&1; then
1945     cat <<EOF
1946 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1947 variable to another directory and make sure that it is not mounted noexec.
1948 EOF
1949     die "Sanity test failed."
1950 fi
1951
1952 filter_asflags=echo
1953 filter_cflags=echo
1954 filter_cppflags=echo
1955
1956 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1957     cc_type=llvm_gcc
1958     cc_version=__VERSION__
1959     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1960     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1961     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1962     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963     speed_cflags='-O3'
1964     size_cflags='-Os'
1965 elif $cc -v 2>&1 | grep -qi ^gcc; then
1966     cc_type=gcc
1967     cc_version=__VERSION__
1968     gcc_version=$($cc --version | head -n1)
1969     gcc_basever=$($cc -dumpversion)
1970     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1971     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1972     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1973     if ! $cc -dumpversion | grep -q '^2\.'; then
1974         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1975         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1976     fi
1977     speed_cflags='-O3'
1978     size_cflags='-Os'
1979 elif $cc --version 2>/dev/null | grep -q Intel; then
1980     cc_type=icc
1981     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1982     cc_ident=$($cc --version | head -n1)
1983     icc_version=$($cc -dumpversion)
1984     CC_DEPFLAGS='-MMD'
1985     AS_DEPFLAGS='-MMD'
1986     speed_cflags='-O3'
1987     size_cflags='-Os'
1988     noopt_cflags='-O1'
1989 elif $cc -v 2>&1 | grep -q xlc; then
1990     cc_type=xlc
1991     cc_version="AV_STRINGIFY(__IBMC__)"
1992     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1993     speed_cflags='-O5'
1994     size_cflags='-O5 -qcompact'
1995 elif $cc -V 2>/dev/null | grep -q Compaq; then
1996     cc_type=ccc
1997     cc_version="AV_STRINGIFY(__DECC_VER)"
1998     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1999     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2000     debuglevel=3
2001     add_ldflags -Wl,-z,now # calls to libots crash without this
2002     speed_cflags='-fast'
2003     size_cflags='-O1'
2004 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2005     test -d "$sysroot" || die "No valid sysroot specified."
2006     cc_type=armcc
2007     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2008     cc_ident=$($cc --vsn | head -n1)
2009     armcc_conf="$PWD/armcc.conf"
2010     $cc --arm_linux_configure                 \
2011         --arm_linux_config_file="$armcc_conf" \
2012         --configure_sysroot="$sysroot"        \
2013         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2014         die "Error creating armcc configuration file."
2015     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2016     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2017     as_default="${cross_prefix}gcc"
2018     CC_DEPFLAGS='-MMD'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3'
2021     size_cflags='-Os'
2022     filter_asflags="filter_out -W${armcc_opt}*"
2023 elif $cc -version 2>/dev/null | grep -q TMS470; then
2024     cc_type=tms470
2025     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2026     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2027     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2028     CC_O='-fr=$(@D)'
2029     as_default="${cross_prefix}gcc"
2030     ld_default="${cross_prefix}gcc"
2031     TMPO=$(basename $TMPC .c).o
2032     append TMPFILES $TMPO
2033     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2034     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2035     AS_DEPFLAGS='-MMD'
2036     speed_cflags='-O3 -mf=5'
2037     size_cflags='-O3 -mf=2'
2038     filter_cflags=tms470_flags
2039     tms470_flags(){
2040         for flag; do
2041             case $flag in
2042                 -march=*|-mcpu=*)
2043                     case "${flag#*=}" in
2044                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2045                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2046                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2047                         armv6*|arm11*)          echo -mv=6   ;;
2048                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2049                                                 echo -mv=5e  ;;
2050                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2051                     esac
2052                     ;;
2053                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2054                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2055                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2056                 -msoft-float)   echo --float_support=vfplib       ;;
2057                 -O[0-3]|-mf=*)  echo $flag                        ;;
2058                 -g)             echo -g -mn                       ;;
2059                 -pds=*)         echo $flag                        ;;
2060             esac
2061         done
2062     }
2063 elif $cc -v 2>&1 | grep -q clang; then
2064     cc_type=clang
2065     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2066         cc_version=__clang_version__ || cc_version=__VERSION__
2067     cc_ident=$($cc --version | head -n1)
2068     CC_DEPFLAGS='-MMD'
2069     AS_DEPFLAGS='-MMD'
2070     speed_cflags='-O3'
2071     size_cflags='-Os'
2072 elif $cc -V 2>&1 | grep -q Sun; then
2073     cc_type=suncc
2074     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2075     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2076     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2077     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2078     add_ldflags -xc99
2079     speed_cflags='-O5'
2080     size_cflags='-O5 -xspace'
2081     filter_cflags=suncc_flags
2082     suncc_flags(){
2083         for flag; do
2084             case $flag in
2085                 -march=*|-mcpu=*)
2086                     case "${flag#*=}" in
2087                         native)                   echo -xtarget=native       ;;
2088                         v9|niagara)               echo -xarch=sparc          ;;
2089                         ultrasparc)               echo -xarch=sparcvis       ;;
2090                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2091                         i586|pentium)             echo -xchip=pentium        ;;
2092                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2093                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2094                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2095                         pentium4*)          echo -xtarget=pentium4           ;;
2096                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2097                         *-sse3)             echo -xarch=sse3                 ;;
2098                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2099                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2100                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2101                         k8|opteron|athlon64|athlon-fx)
2102                                                   echo -xarch=sse2a          ;;
2103                         athlon*)                  echo -xarch=pentium_proa   ;;
2104                     esac
2105                     ;;
2106                 -std=c99)             echo -xc99              ;;
2107                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2108                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2109                 -W*,*)                echo $flag              ;;
2110                 -f*-*|-W*)                                    ;;
2111                 *)                    echo $flag              ;;
2112             esac
2113         done
2114     }
2115 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2116     cc_type=pathscale
2117     cc_version=__PATHSCALE__
2118     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2119     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2120     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2121     speed_cflags='-O2'
2122     size_cflags='-Os'
2123     filter_cflags='filter_out -Wdisabled-optimization'
2124 elif $cc -v 2>&1 | grep -q Open64; then
2125     cc_type=open64
2126     cc_version=__OPEN64__
2127     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2128     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     speed_cflags='-O2'
2131     size_cflags='-Os'
2132     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2133 fi
2134
2135 test -n "$cc_type" && enable $cc_type ||
2136     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2137
2138 : ${as_default:=$cc}
2139 : ${dep_cc_default:=$cc}
2140 : ${ld_default:=$cc}
2141 set_default ar as dep_cc ld
2142
2143 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2144 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2145
2146 add_cflags $extra_cflags
2147 add_asflags $extra_cflags
2148
2149 if test -n "$sysroot"; then
2150     case "$cc_type" in
2151         gcc|llvm_gcc|clang)
2152             add_cppflags --sysroot="$sysroot"
2153             add_ldflags --sysroot="$sysroot"
2154         ;;
2155         tms470)
2156             add_cppflags -I"$sysinclude"
2157             add_ldflags  --sysroot="$sysroot"
2158         ;;
2159     esac
2160 fi
2161
2162 if test "$cpu" = host; then
2163     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2164
2165     case "$cc_type" in
2166         gcc|llvm_gcc)
2167             check_native(){
2168                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2169                 sed -n "/cc1.*$1=/{
2170                             s/.*$1=\\([^ ]*\\).*/\\1/
2171                             p
2172                             q
2173                         }" $TMPE
2174             }
2175             cpu=$(check_native -march || check_native -mcpu)
2176         ;;
2177     esac
2178
2179     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2180 fi
2181
2182 # Deal with common $arch aliases
2183 case "$arch" in
2184     arm*)
2185         arch="arm"
2186     ;;
2187     mips|mipsel|IP*)
2188         arch="mips"
2189     ;;
2190     mips64*)
2191         arch="mips"
2192         subarch="mips64"
2193     ;;
2194     parisc|hppa)
2195         arch="parisc"
2196     ;;
2197     parisc64|hppa64)
2198         arch="parisc"
2199         subarch="parisc64"
2200     ;;
2201     "Power Macintosh"|ppc|powerpc)
2202         arch="ppc"
2203     ;;
2204     ppc64|powerpc64)
2205         arch="ppc"
2206         subarch="ppc64"
2207     ;;
2208     s390|s390x)
2209         arch="s390"
2210     ;;
2211     sh4|sh)
2212         arch="sh4"
2213     ;;
2214     sun4u|sparc64)
2215         arch="sparc"
2216         subarch="sparc64"
2217     ;;
2218     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2219         arch="x86"
2220     ;;
2221 esac
2222
2223 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2224 enable $arch
2225
2226 # Add processor-specific flags
2227 if test "$cpu" = generic; then
2228     : do nothing
2229 elif enabled ppc; then
2230
2231     case $(tolower $cpu) in
2232         601|ppc601|powerpc601)
2233             cpuflags="-mcpu=601"
2234             disable altivec
2235         ;;
2236         603*|ppc603*|powerpc603*)
2237             cpuflags="-mcpu=603"
2238             disable altivec
2239         ;;
2240         604*|ppc604*|powerpc604*)
2241             cpuflags="-mcpu=604"
2242             disable altivec
2243         ;;
2244         g3|75*|ppc75*|powerpc75*)
2245             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2246             disable altivec
2247         ;;
2248         g4|745*|ppc745*|powerpc745*)
2249             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2250         ;;
2251         74*|ppc74*|powerpc74*)
2252             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2253         ;;
2254         g5|970|ppc970|powerpc970|power4*)
2255             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2256         ;;
2257         cell)
2258             cpuflags="-mcpu=cell"
2259             enable ldbrx
2260         ;;
2261         e500v2)
2262             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2263             disable altivec
2264         ;;
2265         e500)
2266             cpuflags="-mcpu=8540 -mhard-float"
2267             disable altivec
2268         ;;
2269     esac
2270
2271 elif enabled x86; then
2272
2273     case $cpu in
2274         i[345]86|pentium)
2275             cpuflags="-march=$cpu"
2276             disable mmx
2277         ;;
2278         # targets that do NOT support conditional mov (cmov)
2279         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2280             cpuflags="-march=$cpu"
2281             disable cmov
2282         ;;
2283         # targets that do support conditional mov (cmov)
2284         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2285             cpuflags="-march=$cpu"
2286             enable cmov
2287             enable fast_cmov
2288         ;;
2289         # targets that do support conditional mov but on which it's slow
2290         pentium4|pentium4m|prescott|nocona)
2291             cpuflags="-march=$cpu"
2292             enable cmov
2293             disable fast_cmov
2294         ;;
2295     esac
2296
2297 elif enabled sparc; then
2298
2299     case $cpu in
2300         niagara)
2301             cpuflags="-mcpu=$cpu"
2302             disable vis
2303         ;;
2304         sparc64)
2305             cpuflags="-mcpu=v9"
2306         ;;
2307     esac
2308
2309 elif enabled arm; then
2310
2311     case $cpu in
2312         armv*)
2313             cpuflags="-march=$cpu"
2314             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2315         ;;
2316         *)
2317             cpuflags="-mcpu=$cpu"
2318             case $cpu in
2319                 cortex-a*)                               subarch=armv7a  ;;
2320                 cortex-r*)                               subarch=armv7r  ;;
2321                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2322                 arm11*)                                  subarch=armv6   ;;
2323                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2324                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2325             esac
2326         ;;
2327     esac
2328
2329 elif enabled alpha; then
2330
2331     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2332
2333 elif enabled bfin; then
2334
2335     cpuflags="-mcpu=$cpu"
2336
2337 elif enabled mips; then
2338
2339     cpuflags="-march=$cpu"
2340
2341 elif enabled avr32; then
2342
2343     case $cpu in
2344         ap7[02]0[0-2])
2345             subarch="avr32_ap"
2346             cpuflags="-mpart=$cpu"
2347         ;;
2348         ap)
2349             subarch="avr32_ap"
2350             cpuflags="-march=$cpu"
2351         ;;
2352         uc3[ab]*)
2353             subarch="avr32_uc"
2354             cpuflags="-mcpu=$cpu"
2355         ;;
2356         uc)
2357             subarch="avr32_uc"
2358             cpuflags="-march=$cpu"
2359         ;;
2360     esac
2361
2362 fi
2363
2364 add_cflags $cpuflags
2365 add_asflags $cpuflags
2366
2367 # compiler sanity check
2368 check_exec <<EOF
2369 int main(void){ return 0; }
2370 EOF
2371 if test "$?" != 0; then
2372     echo "$cc is unable to create an executable file."
2373     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2374         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2375         echo "Only do this if you know what cross compiling means."
2376     fi
2377     die "C compiler test failed."
2378 fi
2379
2380 add_cppflags -D_ISOC99_SOURCE
2381 check_cflags -std=c99
2382 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2383 #include <stdlib.h>
2384 EOF
2385 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2386 #include <stdlib.h>
2387 EOF
2388
2389 check_host_cflags -std=c99
2390 check_host_cflags -Wall
2391
2392 case "$arch" in
2393     alpha|ia64|mips|parisc|sparc)
2394         spic=$shared
2395     ;;
2396     x86)
2397         subarch="x86_32"
2398         check_cc <<EOF && subarch="x86_64"
2399         int test[(int)sizeof(char*) - 7];
2400 EOF
2401         if test "$subarch" = "x86_64"; then
2402             spic=$shared
2403         fi
2404     ;;
2405 esac
2406
2407 enable $subarch
2408 enabled spic && enable pic
2409
2410 # OS specific
2411 case $target_os in
2412     haiku)
2413         prefix_default="/boot/common"
2414         network_extralibs="-lnetwork"
2415         host_libs=
2416         ;;
2417     sunos)
2418         AVSERVERLDFLAGS=""
2419         SHFLAGS='-shared -Wl,-h,$$(@F)'
2420         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2421         network_extralibs="-lsocket -lnsl"
2422         add_cppflags -D__EXTENSIONS__
2423         # When using suncc to build, the Solaris linker will mark
2424         # an executable with each instruction set encountered by
2425         # the Solaris assembler.  As our libraries contain their own
2426         # guards for processor-specific code, instead suppress
2427         # generation of the HWCAPS ELF section on Solaris x86 only.
2428         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2429         nm_opts='-P -g'
2430         ;;
2431     netbsd)
2432         disable symver
2433         oss_indev_extralibs="-lossaudio"
2434         oss_outdev_extralibs="-lossaudio"
2435         ;;
2436     openbsd)
2437         enable malloc_aligned
2438         # On OpenBSD 4.5. the compiler does not use PIC unless
2439         # explicitly using -fPIC. Libav builds fine without PIC,
2440         # however the generated executable will not do anything
2441         # (simply quits with exit-code 1, no crash, no output).
2442         # Thus explicitly enable PIC here.
2443         enable pic
2444         disable symver
2445         SHFLAGS='-shared'
2446         oss_indev_extralibs="-lossaudio"
2447         oss_outdev_extralibs="-lossaudio"
2448         ;;
2449     dragonfly)
2450         enable malloc_aligned
2451         disable symver
2452         ;;
2453     freebsd)
2454         enable malloc_aligned
2455         ;;
2456     bsd/os)
2457         add_extralibs -lpoll -lgnugetopt
2458         ;;
2459     darwin)
2460         enable malloc_aligned
2461         gas="gas-preprocessor.pl $cc"
2462         enabled ppc && add_asflags -force_cpusubtype_ALL
2463         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2464         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2465         add_ldflags -Wl,-dynamic,-search_paths_first
2466         SLIBSUF=".dylib"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2469         AVSERVERLDFLAGS=-Wl,-bind_at_load
2470         objformat="macho"
2471         enabled x86_64 && objformat="macho64"
2472         enabled_any pic shared ||
2473             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2474         ;;
2475     mingw32*)
2476         if test $target_os = "mingw32ce"; then
2477             disable network
2478         else
2479             target_os=mingw32
2480         fi
2481         LIBTARGET=i386
2482         if enabled x86_64; then
2483             enable malloc_aligned
2484             LIBTARGET="i386:x86-64"
2485         elif enabled arm; then
2486             LIBTARGET=arm-wince
2487         fi
2488         shlibdir_default="$bindir_default"
2489         SLIBPREF=""
2490         SLIBSUF=".dll"
2491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2493         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2494         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2495         SLIB_INSTALL_LINKS=
2496         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2497         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2498         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2499         objformat="win32"
2500         dlltool="${cross_prefix}dlltool"
2501         enable dos_paths
2502         check_cflags -fno-common
2503         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2504                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2505                 die "ERROR: MinGW runtime version must be >= 3.15."
2506         add_cppflags -U__STRICT_ANSI__
2507         ;;
2508     cygwin*)
2509         target_os=cygwin
2510         shlibdir_default="$bindir_default"
2511         SLIBPREF="cyg"
2512         SLIBSUF=".dll"
2513         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2514         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2515         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2516         objformat="win32"
2517         enable dos_paths
2518         check_cflags -fno-common
2519         add_cppflags -U__STRICT_ANSI__
2520         ;;
2521     *-dos|freedos|opendos)
2522         network_extralibs="-lsocket"
2523         objformat="coff"
2524         enable dos_paths
2525         add_cppflags -U__STRICT_ANSI__
2526         ;;
2527     linux)
2528         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2529         enable dv1394
2530         ;;
2531     irix*)
2532         target_os=irix
2533         ranlib="echo ignoring ranlib"
2534         ;;
2535     os/2*)
2536         ln_s="cp -f"
2537         objformat="aout"
2538         add_cppflags -D_GNU_SOURCE
2539         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2540         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2541         AVSERVERLDFLAGS=""
2542         LIBSUF="_s.a"
2543         SLIBPREF=""
2544         SLIBSUF=".dll"
2545         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2546         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2547         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2548           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2549           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2550           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2551           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2552           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2553         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2554           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2555         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2556         enable dos_paths
2557         ;;
2558     gnu/kfreebsd)
2559         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2560         ;;
2561     gnu)
2562         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2563         ;;
2564     qnx)
2565         add_cppflags -D_QNX_SOURCE
2566         network_extralibs="-lsocket"
2567         ;;
2568     symbian)
2569         SLIBSUF=".dll"
2570         enable dos_paths
2571         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2572         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2573         add_ldflags -Wl,--target1-abs,--no-undefined \
2574                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2575                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2576         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2577                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2578                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2579         ;;
2580     none)
2581         ;;
2582     *)
2583         die "Unknown OS '$target_os'."
2584         ;;
2585 esac
2586
2587 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2588
2589 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2590
2591 set_default $PATHS_LIST
2592
2593 # we need to build at least one lib type
2594 if ! enabled_any static shared; then
2595     cat <<EOF
2596 At least one library type must be built.
2597 Specify --enable-static to build the static libraries or --enable-shared to
2598 build the shared libraries as well. To only build the shared libraries specify
2599 --disable-static in addition to --enable-shared.
2600 EOF
2601     exit 1;
2602 fi
2603
2604 die_license_disabled() {
2605     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2606 }
2607
2608 die_license_disabled gpl libcdio
2609 die_license_disabled gpl libx264
2610 die_license_disabled gpl libxavs
2611 die_license_disabled gpl libxvid
2612 die_license_disabled gpl x11grab
2613
2614 die_license_disabled nonfree libfaac
2615 die_license_disabled nonfree openssl
2616
2617 die_license_disabled version3 libopencore_amrnb
2618 die_license_disabled version3 libopencore_amrwb
2619 die_license_disabled version3 libvo_aacenc
2620 die_license_disabled version3 libvo_amrwbenc
2621
2622 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2623
2624 disabled optimizations || check_cflags -fomit-frame-pointer
2625
2626 enable_pic() {
2627     enable pic
2628     add_cppflags -DPIC
2629     add_cflags   -fPIC
2630     add_asflags  -fPIC
2631 }
2632
2633 enabled pic && enable_pic
2634
2635 check_cc <<EOF || die "Symbol mangling check failed."
2636 int ff_extern;
2637 EOF
2638 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2639 extern_prefix=${sym%%ff_extern*}
2640
2641 check_cc <<EOF && enable inline_asm
2642 void foo(void) { __asm__ volatile ("" ::); }
2643 EOF
2644
2645 _restrict=
2646 for restrict_keyword in restrict __restrict__ __restrict; do
2647     check_cc <<EOF && _restrict=$restrict_keyword && break
2648 void foo(char * $restrict_keyword p);
2649 EOF
2650 done
2651
2652 check_cc <<EOF && enable attribute_packed
2653 struct { int x; } __attribute__((packed)) x;
2654 EOF
2655
2656 check_cc <<EOF && enable attribute_may_alias
2657 union { int x; } __attribute__((may_alias)) x;
2658 EOF
2659
2660 check_cc <<EOF || die "endian test failed"
2661 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2662 EOF
2663 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2664
2665 if enabled alpha; then
2666
2667     check_cflags -mieee
2668
2669 elif enabled arm; then
2670
2671     enabled thumb && check_cflags -mthumb || check_cflags -marm
2672     nogas=die
2673
2674     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2675         enable vfp_args
2676     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2677         case "${cross_prefix:-$cc}" in
2678             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2679             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2680 __asm__ (".eabi_attribute 28, 1");
2681 int main(void) { return 0; }
2682 EOF
2683         esac
2684         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2685     fi
2686
2687     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2688     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2689     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2690     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2691     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2692     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2693     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2694
2695     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2696
2697     enabled_all armv6t2 shared !pic && enable_pic
2698
2699 elif enabled mips; then
2700
2701     check_asm loongson '"dmult.g $1, $2, $3"'
2702     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2703
2704 elif enabled ppc; then
2705
2706     enable local_aligned_8 local_aligned_16
2707
2708     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2709     check_asm ibm_asm   '"add 0, 0, 0"'
2710     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2711     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2712
2713     # AltiVec flags: The FSF version of GCC differs from the Apple version
2714     if enabled altivec; then
2715         nogas=warn
2716         check_cflags -maltivec -mabi=altivec &&
2717         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2718         check_cflags -faltivec
2719
2720         # check if our compiler supports Motorola AltiVec C API
2721         check_cc <<EOF || disable altivec
2722 $inc_altivec_h
2723 int main(void) {
2724     vector signed int v1, v2, v3;
2725     v1 = vec_add(v2,v3);
2726     return 0;
2727 }
2728 EOF
2729
2730         # check if our compiler supports braces for vector declarations
2731         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2732 $inc_altivec_h
2733 int main (void) { (vector int) {1}; return 0; }
2734 EOF
2735     fi
2736
2737 elif enabled sparc; then
2738
2739     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2740         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2741
2742 elif enabled x86; then
2743
2744     enable local_aligned_8 local_aligned_16
2745
2746     # check whether EBP is available on x86
2747     # As 'i' is stored on the stack, this program will crash
2748     # if the base pointer is used to access it because the
2749     # base pointer is cleared in the inline assembly code.
2750     check_exec_crash <<EOF && enable ebp_available
2751     volatile int i=0;
2752     __asm__ volatile (
2753         "xorl %%ebp, %%ebp"
2754     ::: "%ebp");
2755     return i;
2756 EOF
2757
2758     # check whether EBX is available on x86
2759     check_asm ebx_available '""::"b"(0)' &&
2760         check_asm ebx_available '"":::"%ebx"'
2761
2762     # check whether xmm clobbers are supported
2763     check_asm xmm_clobbers '"":::"%xmm0"'
2764
2765     # check whether binutils is new enough to compile SSSE3/MMX2
2766     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2767     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2768
2769     if ! disabled_any asm mmx yasm; then
2770         if check_cmd $yasmexe --version; then
2771             enabled x86_64 && yasm_extra="-m amd64"
2772             yasm_debug="-g dwarf2"
2773         elif check_cmd nasm -v; then
2774             yasmexe=nasm
2775             yasm_debug="-g -F dwarf"
2776             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2777         fi
2778
2779         YASMFLAGS="-f $objformat $yasm_extra"
2780         enabled pic               && append YASMFLAGS "-DPIC"
2781         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2782         case "$objformat" in
2783             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2784         esac
2785
2786         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2787             die "yasm not found, use --disable-yasm for a crippled build"
2788         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2789     fi
2790
2791     case "$cpu" in
2792         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2793             disable fast_clz
2794         ;;
2795     esac
2796
2797 fi
2798
2799 if enabled asm; then
2800     as=${gas:=$as}
2801     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2802         $nogas "GNU assembler not found, install gas-preprocessor"
2803 fi
2804
2805 check_ldflags -Wl,--as-needed
2806
2807 if check_func dlopen; then
2808     ldl=
2809 elif check_func dlopen -ldl; then
2810     ldl=-ldl
2811 fi
2812
2813 if enabled network; then
2814     check_type "sys/types.h sys/socket.h" socklen_t
2815     check_type netdb.h "struct addrinfo"
2816     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2817     check_type netinet/in.h "struct sockaddr_in6"
2818     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2819     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2820     # Prefer arpa/inet.h over winsock2
2821     if check_header arpa/inet.h ; then
2822         check_func closesocket
2823     elif check_header winsock2.h ; then
2824         check_func_headers winsock2.h closesocket -lws2 && \
2825             network_extralibs="-lws2" || \
2826         { check_func_headers winsock2.h closesocket -lws2_32 && \
2827             network_extralibs="-lws2_32"; }
2828         check_type ws2tcpip.h socklen_t
2829         check_type ws2tcpip.h "struct addrinfo"
2830         check_type ws2tcpip.h "struct ipv6_mreq"
2831         check_type ws2tcpip.h "struct sockaddr_in6"
2832         check_type ws2tcpip.h "struct sockaddr_storage"
2833         check_struct winsock2.h "struct sockaddr" sa_len
2834     else
2835         disable network
2836     fi
2837 fi
2838
2839 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2840 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2841
2842 check_func  fcntl
2843 check_func  fork
2844 check_func  getaddrinfo $network_extralibs
2845 check_func  gethrtime
2846 check_func  getrusage
2847 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2848 check_func  inet_aton $network_extralibs
2849 check_func  isatty
2850 check_func  localtime_r
2851 check_func  ${malloc_prefix}memalign            && enable memalign
2852 check_func  mkstemp
2853 check_func  mmap
2854 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2855 check_func  setrlimit
2856 check_func  strerror_r
2857 check_func  strptime
2858 check_func  strtok_r
2859 check_func  sched_getaffinity
2860 check_func  sysctl
2861 check_func_headers io.h setmode
2862 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2863 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2864 check_func_headers windows.h GetProcessTimes
2865 check_func_headers windows.h GetSystemInfo
2866 check_func_headers windows.h MapViewOfFile
2867 check_func_headers windows.h VirtualAlloc
2868
2869 check_header dlfcn.h
2870 check_header dxva2api.h
2871 check_header malloc.h
2872 check_header poll.h
2873 check_header sys/mman.h
2874 check_header sys/resource.h
2875 check_header sys/select.h
2876 check_header vdpau/vdpau.h
2877 check_header vdpau/vdpau_x11.h
2878 check_header X11/extensions/XvMClib.h
2879
2880 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2881
2882 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2883 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2884
2885 if ! disabled w32threads && ! enabled pthreads; then
2886     check_func _beginthreadex && enable w32threads
2887 fi
2888
2889 # check for some common methods of building with pthread support
2890 # do this before the optional library checks as some of them require pthreads
2891 if ! disabled pthreads && ! enabled w32threads; then
2892     enable pthreads
2893     if check_func pthread_create; then
2894         :
2895     elif check_func pthread_create -pthread; then
2896         add_cflags -pthread
2897         add_extralibs -pthread
2898     elif check_func pthread_create -pthreads; then
2899         add_cflags -pthreads
2900         add_extralibs -pthreads
2901     elif check_func pthread_create -lpthreadGC2; then
2902         add_extralibs -lpthreadGC2
2903     elif ! check_lib pthread.h pthread_create -lpthread; then
2904         disable pthreads
2905     fi
2906 fi
2907
2908 for thread in $THREADS_LIST; do
2909     if enabled $thread; then
2910         test -n "$thread_type" &&
2911             die "ERROR: Only one thread type must be selected." ||
2912             thread_type="$thread"
2913     fi
2914 done
2915
2916 check_lib math.h sin -lm && LIBM="-lm"
2917 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2918
2919 check_mathfunc exp2
2920 check_mathfunc exp2f
2921 check_mathfunc llrint
2922 check_mathfunc llrintf
2923 check_mathfunc log2
2924 check_mathfunc log2f
2925 check_mathfunc lrint
2926 check_mathfunc lrintf
2927 check_mathfunc round
2928 check_mathfunc roundf
2929 check_mathfunc trunc
2930 check_mathfunc truncf
2931
2932 # these are off by default, so fail if requested and not available
2933 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2934 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2935 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2936 enabled libdirac   && require_pkg_config dirac                          \
2937     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2938     "dirac_decoder_init dirac_encoder_init"
2939 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2940 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2941 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2942 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2943 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2944 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2945 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2946 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2947 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2948 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2949 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2950 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2951 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2952 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2953 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2954 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2955 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2956 enabled libvpx     && {
2957     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2958                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2959     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2960                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2961 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2962                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2963                         die "ERROR: libx264 version must be >= 0.118."; }
2964 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2965 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2966 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2967 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2968                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2969                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2970                         die "ERROR: openssl not found"; }
2971
2972 # libdc1394 check
2973 if enabled libdc1394; then
2974     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2975         enable libdc1394_2; } ||
2976     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2977         enable libdc1394_1; } ||
2978     die "ERROR: No version of libdc1394 found "
2979 fi
2980
2981 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2982     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2983     enable sdl &&
2984     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2985 fi
2986
2987 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2988
2989 check_header linux/fb.h
2990 check_header linux/videodev.h
2991 check_header linux/videodev2.h
2992 check_header sys/videoio.h
2993
2994 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2995 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2996 # w32api 3.12 had it defined wrong
2997 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2998
2999 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3000 { check_header dev/bktr/ioctl_meteor.h &&
3001   check_header dev/bktr/ioctl_bt848.h; } ||
3002 { check_header machine/ioctl_meteor.h &&
3003   check_header machine/ioctl_bt848.h; } ||
3004 { check_header dev/video/meteor/ioctl_meteor.h &&
3005   check_header dev/video/bktr/ioctl_bt848.h; } ||
3006 check_header dev/ic/bt8xx.h
3007
3008 check_header sndio.h
3009 check_header sys/soundcard.h
3010 check_header soundcard.h
3011
3012 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3013
3014 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3015
3016 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3017
3018 enabled libcdio &&
3019     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3020
3021 enabled x11grab                         &&
3022 check_header X11/Xlib.h                 &&
3023 check_header X11/extensions/XShm.h      &&
3024 check_header X11/extensions/Xfixes.h    &&
3025 check_func XOpenDisplay -lX11           &&
3026 check_func XShmCreateImage -lX11 -lXext &&
3027 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3028
3029 # check for VDA header
3030 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3031     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3032 fi
3033
3034 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3035 check_cpp_condition \
3036     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3037     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3038       disable vdpau; }
3039 fi
3040
3041 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3042
3043 # add some useful compiler flags if supported
3044 check_cflags -Wdeclaration-after-statement
3045 check_cflags -Wall
3046 check_cflags -Wno-parentheses
3047 check_cflags -Wno-switch
3048 check_cflags -Wno-format-zero-length
3049 check_cflags -Wdisabled-optimization
3050 check_cflags -Wpointer-arith
3051 check_cflags -Wredundant-decls
3052 check_cflags -Wno-pointer-sign
3053 check_cflags -Wcast-qual
3054 check_cflags -Wwrite-strings
3055 check_cflags -Wtype-limits
3056 check_cflags -Wundef
3057 check_cflags -Wmissing-prototypes
3058 check_cflags -Wstrict-prototypes
3059 enabled extra_warnings && check_cflags -Winline
3060
3061 # add some linker flags
3062 check_ldflags -Wl,--warn-common
3063 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3064 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3065
3066 echo "X{};" > $TMPV
3067 if test_ldflags -Wl,--version-script,$TMPV; then
3068     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3069     check_cc <<EOF && enable symver_asm_label
3070 void ff_foo(void) __asm__ ("av_foo@VERSION");
3071 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3072 EOF
3073     check_cc <<EOF && enable symver_gnu_asm
3074 __asm__(".symver ff_foo,av_foo@VERSION");
3075 void ff_foo(void) {}
3076 EOF
3077 fi
3078
3079 if [ -n "$optflags" ]; then
3080     add_cflags $optflags
3081 elif enabled small; then
3082     add_cflags $size_cflags
3083 elif enabled optimizations; then
3084     add_cflags $speed_cflags
3085 else
3086     add_cflags $noopt_cflags
3087 fi
3088 check_cflags -fno-math-errno
3089 check_cflags -fno-signed-zeros
3090
3091 if enabled icc; then
3092     # Just warnings, no remarks
3093     check_cflags -w1
3094     # -wd: Disable following warnings
3095     # 144, 167, 556: -Wno-pointer-sign
3096     # 1292: attribute "foo" ignored
3097     # 10006: ignoring unknown option -fno-signed-zeros
3098     # 10148: ignoring unknown option -Wno-parentheses
3099     # 10156: ignoring option '-W'; no argument required
3100     check_cflags -wd144,167,556,1292,10006,10148,10156
3101     # 11030: Warning unknown option --as-needed
3102     # 10156: ignoring option '-export'; no argument required
3103     check_ldflags -wd10156,11030
3104     # Allow to compile with optimizations
3105     check_ldflags -march=$cpu
3106     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3107     enable ebp_available
3108     if enabled x86_32; then
3109         test ${icc_version%%.*} -ge 11 && \
3110             check_cflags -falign-stack=maintain-16-byte || \
3111             disable aligned_stack
3112     fi
3113 elif enabled ccc; then
3114     # disable some annoying warnings
3115     add_cflags -msg_disable cvtu32to64
3116     add_cflags -msg_disable embedcomment
3117     add_cflags -msg_disable needconstext
3118     add_cflags -msg_disable nomainieee
3119     add_cflags -msg_disable ptrmismatch1
3120     add_cflags -msg_disable unreachcode
3121 elif enabled gcc; then
3122     check_cflags -fno-tree-vectorize
3123     check_cflags -Werror=implicit-function-declaration
3124     check_cflags -Werror=missing-prototypes
3125     check_cflags -Werror=declaration-after-statement
3126 elif enabled llvm_gcc; then
3127     check_cflags -mllvm -stack-alignment=16
3128 elif enabled clang; then
3129     check_cflags -mllvm -stack-alignment=16
3130     check_cflags -Qunused-arguments
3131 elif enabled armcc; then
3132     # 2523: use of inline assembler is deprecated
3133     add_cflags -W${armcc_opt},--diag_suppress=2523
3134     add_cflags -W${armcc_opt},--diag_suppress=1207
3135     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3136     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3137     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3138     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3139 elif enabled tms470; then
3140     add_cflags -pds=824 -pds=837
3141 elif enabled pathscale; then
3142     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3143 fi
3144
3145 enabled_any $THREADS_LIST      && enable threads
3146
3147 check_deps $CONFIG_LIST       \
3148            $CONFIG_EXTRA      \
3149            $HAVE_LIST         \
3150            $ALL_COMPONENTS    \
3151            $ALL_TESTS         \
3152
3153 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3154
3155 ! enabled_any memalign posix_memalign malloc_aligned &&
3156     enabled_any $need_memalign && enable memalign_hack
3157
3158 echo "install prefix            $prefix"
3159 echo "source path               $source_path"
3160 echo "C compiler                $cc"
3161 echo "ARCH                      $arch ($cpu)"
3162 if test "$build_suffix" != ""; then
3163     echo "build suffix              $build_suffix"
3164 fi
3165 if test "$extra_version" != ""; then
3166     echo "version string suffix     $extra_version"
3167 fi
3168 echo "big-endian                ${bigendian-no}"
3169 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3170 if enabled x86; then
3171     echo "${yasmexe}                      ${yasm-no}"
3172     echo "MMX enabled               ${mmx-no}"
3173     echo "MMX2 enabled              ${mmx2-no}"
3174     echo "3DNow! enabled            ${amd3dnow-no}"
3175     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3176     echo "SSE enabled               ${sse-no}"
3177     echo "SSSE3 enabled             ${ssse3-no}"
3178     echo "AVX enabled               ${avx-no}"
3179     echo "CMOV enabled              ${cmov-no}"
3180     echo "CMOV is fast              ${fast_cmov-no}"
3181     echo "EBX available             ${ebx_available-no}"
3182     echo "EBP available             ${ebp_available-no}"
3183 fi
3184 if enabled arm; then
3185     echo "ARMv5TE enabled           ${armv5te-no}"
3186     echo "ARMv6 enabled             ${armv6-no}"
3187     echo "ARMv6T2 enabled           ${armv6t2-no}"
3188     echo "ARM VFP enabled           ${armvfp-no}"
3189     echo "IWMMXT enabled            ${iwmmxt-no}"
3190     echo "NEON enabled              ${neon-no}"
3191 fi
3192 if enabled mips; then
3193     echo "MMI enabled               ${mmi-no}"
3194 fi
3195 if enabled ppc; then
3196     echo "AltiVec enabled           ${altivec-no}"
3197     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3198     echo "dcbzl available           ${dcbzl-no}"
3199 fi
3200 if enabled sparc; then
3201     echo "VIS enabled               ${vis-no}"
3202 fi
3203 echo "debug symbols             ${debug-no}"
3204 echo "optimize for size         ${small-no}"
3205 echo "optimizations             ${optimizations-no}"
3206 echo "static                    ${static-no}"
3207 echo "shared                    ${shared-no}"
3208 echo "postprocessing support    ${postproc-no}"
3209 echo "new filter support        ${avfilter-no}"
3210 echo "network support           ${network-no}"
3211 echo "threading support         ${thread_type-no}"
3212 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3213 echo "SDL support               ${sdl-no}"
3214 echo "Sun medialib support      ${mlib-no}"
3215 echo "libdxva2 enabled          ${dxva2-no}"
3216 echo "libva enabled             ${vaapi-no}"
3217 echo "libvdpau enabled          ${vdpau-no}"
3218 echo "AVISynth enabled          ${avisynth-no}"
3219 echo "frei0r enabled            ${frei0r-no}"
3220 echo "gnutls enabled            ${gnutls-no}"
3221 echo "libcdio support           ${libcdio-no}"
3222 echo "libdc1394 support         ${libdc1394-no}"
3223 echo "libdirac enabled          ${libdirac-no}"
3224 echo "libfaac enabled           ${libfaac-no}"
3225 echo "libgsm enabled            ${libgsm-no}"
3226 echo "libmp3lame enabled        ${libmp3lame-no}"
3227 echo "libnut enabled            ${libnut-no}"
3228 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3229 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3230 echo "libopencv support         ${libopencv-no}"
3231 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3232 echo "libpulse enabled          ${libpulse-no}"
3233 echo "librtmp enabled           ${librtmp-no}"
3234 echo "libschroedinger enabled   ${libschroedinger-no}"
3235 echo "libspeex enabled          ${libspeex-no}"
3236 echo "libtheora enabled         ${libtheora-no}"
3237 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3238 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3239 echo "libvorbis enabled         ${libvorbis-no}"
3240 echo "libvpx enabled            ${libvpx-no}"
3241 echo "libx264 enabled           ${libx264-no}"
3242 echo "libxavs enabled           ${libxavs-no}"
3243 echo "libxvid enabled           ${libxvid-no}"
3244 echo "openssl enabled           ${openssl-no}"
3245 echo "zlib enabled              ${zlib-no}"
3246 echo "bzlib enabled             ${bzlib-no}"
3247 echo
3248
3249 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3250     echo "Enabled ${type}s:"
3251     eval list=\$$(toupper $type)_LIST
3252     print_enabled '_*' $list | sort | pr -r -3 -t
3253     echo
3254 done
3255
3256 license="LGPL version 2.1 or later"
3257 if enabled nonfree; then
3258     license="nonfree and unredistributable"
3259 elif enabled gplv3; then
3260     license="GPL version 3 or later"
3261 elif enabled lgplv3; then
3262     license="LGPL version 3 or later"
3263 elif enabled gpl; then
3264     license="GPL version 2 or later"
3265 fi
3266
3267 echo "License: $license"
3268
3269 echo "Creating config.mak and config.h..."
3270
3271 test -e Makefile || $ln_s "$source_path/Makefile" .
3272
3273 config_files="$TMPH config.mak"
3274
3275 cat > config.mak <<EOF
3276 # Automatically generated by configure - do not modify!
3277 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3278 prefix=$prefix
3279 LIBDIR=\$(DESTDIR)$libdir
3280 SHLIBDIR=\$(DESTDIR)$shlibdir
3281 INCDIR=\$(DESTDIR)$incdir
3282 BINDIR=\$(DESTDIR)$bindir
3283 DATADIR=\$(DESTDIR)$datadir
3284 MANDIR=\$(DESTDIR)$mandir
3285 SRC_PATH=$source_path
3286 CC_IDENT=$cc_ident
3287 ARCH=$arch
3288 CC=$cc
3289 AS=$as
3290 LD=$ld
3291 DEPCC=$dep_cc
3292 YASM=$yasmexe
3293 YASMDEP=$yasmexe
3294 AR=$ar
3295 RANLIB=$ranlib
3296 LN_S=$ln_s
3297 CPPFLAGS=$CPPFLAGS
3298 CFLAGS=$CFLAGS
3299 ASFLAGS=$ASFLAGS
3300 AS_O=$CC_O
3301 CC_O=$CC_O
3302 DLLTOOL=$dlltool
3303 LDFLAGS=$LDFLAGS
3304 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3305 SHFLAGS=$SHFLAGS
3306 YASMFLAGS=$YASMFLAGS
3307 BUILDSUF=$build_suffix
3308 FULLNAME=$FULLNAME
3309 LIBPREF=$LIBPREF
3310 LIBSUF=$LIBSUF
3311 LIBNAME=$LIBNAME
3312 SLIBPREF=$SLIBPREF
3313 SLIBSUF=$SLIBSUF
3314 EXESUF=$EXESUF
3315 EXTRA_VERSION=$extra_version
3316 DEPFLAGS=$DEPFLAGS
3317 CCDEP=$CCDEP
3318 ASDEP=$ASDEP
3319 CC_DEPFLAGS=$CC_DEPFLAGS
3320 AS_DEPFLAGS=$AS_DEPFLAGS
3321 HOSTCC=$host_cc
3322 HOSTCFLAGS=$host_cflags
3323 HOSTEXESUF=$HOSTEXESUF
3324 HOSTLDFLAGS=$host_ldflags
3325 HOSTLIBS=$host_libs
3326 TARGET_EXEC=$target_exec
3327 TARGET_PATH=$target_path
3328 SDL_LIBS=$sdl_libs
3329 SDL_CFLAGS=$sdl_cflags
3330 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3331 EXTRALIBS=$extralibs
3332 INSTALL=install
3333 LIBTARGET=${LIBTARGET}
3334 SLIBNAME=${SLIBNAME}
3335 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3336 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3337 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3338 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3339 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3340 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3341 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3342 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3343 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3344 EOF
3345
3346 get_version(){
3347     name=$1
3348     file=$source_path/$2
3349     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3350     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3351     lcname=$(tolower $name)
3352     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3353     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3354 }
3355
3356 get_version LIBAVCODEC  libavcodec/version.h
3357 get_version LIBAVDEVICE libavdevice/avdevice.h
3358 get_version LIBAVFILTER libavfilter/avfilter.h
3359 get_version LIBAVFORMAT libavformat/version.h
3360 get_version LIBAVUTIL   libavutil/avutil.h
3361 get_version LIBPOSTPROC libpostproc/postprocess.h
3362 get_version LIBSWSCALE  libswscale/swscale.h
3363
3364 cat > $TMPH <<EOF
3365 /* Automatically generated by configure - do not modify! */
3366 #ifndef LIBAV_CONFIG_H
3367 #define LIBAV_CONFIG_H
3368 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3369 #define LIBAV_LICENSE "$(c_escape $license)"
3370 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3371 #define CC_TYPE "$cc_type"
3372 #define CC_VERSION $cc_version
3373 #define restrict $_restrict
3374 #define EXTERN_PREFIX "${extern_prefix}"
3375 #define EXTERN_ASM ${extern_prefix}
3376 #define SLIBSUF "$SLIBSUF"
3377 EOF
3378
3379 test -n "$malloc_prefix" &&
3380     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3381
3382 if enabled small || disabled optimizations; then
3383     echo "#undef  av_always_inline"  >> $TMPH
3384     if enabled small; then
3385         echo "#define av_always_inline inline"  >> $TMPH
3386     else
3387         echo "#define av_always_inline av_unused"  >> $TMPH
3388     fi
3389 fi
3390
3391 if enabled yasm; then
3392     append config_files $TMPASM
3393     printf '' >$TMPASM
3394 fi
3395
3396 print_config ARCH_   "$config_files" $ARCH_LIST
3397 print_config HAVE_   "$config_files" $HAVE_LIST
3398 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3399                                      $CONFIG_EXTRA      \
3400                                      $ALL_COMPONENTS    \
3401
3402 cat >>config.mak <<EOF
3403 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3404 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3405 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3406 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3407 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3408 EOF
3409
3410 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3411
3412 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3413 cp_if_changed $TMPH config.h
3414 touch .config
3415
3416 enabled yasm && cp_if_changed $TMPASM config.asm
3417
3418 cat > $TMPH <<EOF
3419 /* Generated by ffconf */
3420 #ifndef AVUTIL_AVCONFIG_H
3421 #define AVUTIL_AVCONFIG_H
3422 EOF
3423
3424 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3425
3426 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3427
3428 cp_if_changed $TMPH libavutil/avconfig.h
3429
3430 test -n "$WARNINGS" && printf "\n$WARNINGS"
3431
3432 # build pkg-config files
3433
3434 pkgconfig_generate(){
3435 name=$1
3436 shortname=${name#lib}${build_suffix}
3437 comment=$2
3438 version=$3
3439 libs=$4
3440 requires=$5
3441 enabled ${name#lib} || return 0
3442 mkdir -p $name
3443 cat <<EOF > $name/$name.pc
3444 prefix=$prefix
3445 exec_prefix=\${prefix}
3446 libdir=$libdir
3447 includedir=$incdir
3448
3449 Name: $name
3450 Description: $comment
3451 Version: $version
3452 Requires: $(enabled shared || echo $requires)
3453 Requires.private: $(enabled shared && echo $requires)
3454 Conflicts:
3455 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3456 Libs.private: $(enabled shared && echo $libs)
3457 Cflags: -I\${includedir}
3458 EOF
3459 cat <<EOF > $name/$name-uninstalled.pc
3460 prefix=
3461 exec_prefix=
3462 libdir=\${pcfiledir}
3463 includedir=${source_path}
3464
3465 Name: $name
3466 Description: $comment
3467 Version: $version
3468 Requires: $requires
3469 Conflicts:
3470 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3471 Cflags: -I\${includedir}
3472 EOF
3473 }
3474
3475 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3476 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3477 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3478 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3479 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3480 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3481 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"