linux: use number of 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     getrusage
1090     gnu_as
1091     ibm_asm
1092     inet_aton
1093     inline_asm
1094     isatty
1095     ldbrx
1096     libdc1394_1
1097     libdc1394_2
1098     llrint
1099     llrintf
1100     local_aligned_16
1101     local_aligned_8
1102     localtime_r
1103     log2
1104     log2f
1105     loongson
1106     lrint
1107     lrintf
1108     lzo1x_999_compress
1109     machine_ioctl_bt848_h
1110     machine_ioctl_meteor_h
1111     malloc_h
1112     MapViewOfFile
1113     memalign
1114     mkstemp
1115     mmap
1116     poll_h
1117     posix_memalign
1118     round
1119     roundf
1120     sched_getaffinity
1121     sdl
1122     sdl_video_size
1123     setmode
1124     setrlimit
1125     sndio_h
1126     socklen_t
1127     soundcard_h
1128     strerror_r
1129     strptime
1130     strtok_r
1131     struct_addrinfo
1132     struct_ipv6_mreq
1133     struct_rusage_ru_maxrss
1134     struct_sockaddr_in6
1135     struct_sockaddr_sa_len
1136     struct_sockaddr_storage
1137     symver
1138     symver_asm_label
1139     symver_gnu_asm
1140     sys_mman_h
1141     sys_resource_h
1142     sys_select_h
1143     sys_soundcard_h
1144     sys_videoio_h
1145     threads
1146     trunc
1147     truncf
1148     vfp_args
1149     VirtualAlloc
1150     winsock2_h
1151     xform_asm
1152     xmm_clobbers
1153     yasm
1154 "
1155
1156 # options emitted with CONFIG_ prefix but not available on command line
1157 CONFIG_EXTRA="
1158     avutil
1159     gplv3
1160     lgplv3
1161 "
1162
1163 CMDLINE_SELECT="
1164     $ARCH_EXT_LIST
1165     $CONFIG_LIST
1166     $THREADS_LIST
1167     asm
1168     cross_compile
1169     debug
1170     extra_warnings
1171     logging
1172     optimizations
1173     symver
1174     yasm
1175 "
1176
1177 PATHS_LIST='
1178     bindir
1179     datadir
1180     incdir
1181     libdir
1182     mandir
1183     prefix
1184     shlibdir
1185 '
1186
1187 CMDLINE_SET="
1188     $PATHS_LIST
1189     ar
1190     arch
1191     as
1192     build_suffix
1193     cc
1194     cpu
1195     cross_prefix
1196     dep_cc
1197     extra_version
1198     host_cc
1199     host_cflags
1200     host_ldflags
1201     host_libs
1202     host_os
1203     ld
1204     logfile
1205     malloc_prefix
1206     nm
1207     optflags
1208     pkg_config
1209     samples
1210     sysinclude
1211     sysroot
1212     target_exec
1213     target_os
1214     target_path
1215 "
1216
1217 CMDLINE_APPEND="
1218     extra_cflags
1219 "
1220
1221 # code dependency declarations
1222
1223 # architecture extensions
1224
1225 armv5te_deps="arm"
1226 armv6_deps="arm"
1227 armv6t2_deps="arm"
1228 armvfp_deps="arm"
1229 iwmmxt_deps="arm"
1230 neon_deps="arm"
1231 vfpv3_deps="armvfp"
1232
1233 mmi_deps="mips"
1234
1235 altivec_deps="ppc"
1236 ppc4xx_deps="ppc"
1237
1238 vis_deps="sparc"
1239
1240 x86_64_suggest="cmov fast_cmov"
1241 amd3dnow_deps="mmx"
1242 amd3dnowext_deps="amd3dnow"
1243 mmx_deps="x86"
1244 mmx2_deps="mmx"
1245 sse_deps="mmx"
1246 ssse3_deps="sse"
1247 avx_deps="ssse3"
1248
1249 aligned_stack_if_any="ppc x86"
1250 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1251 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1252 fast_unaligned_if_any="armv6 ppc x86"
1253
1254 inline_asm_deps="!tms470"
1255 need_memalign="altivec neon sse"
1256
1257 symver_if_any="symver_asm_label symver_gnu_asm"
1258
1259 # subsystems
1260 dct_select="rdft"
1261 mdct_select="fft"
1262 rdft_select="fft"
1263 mpegaudiodsp_select="dct"
1264
1265 # decoders / encoders / hardware accelerators
1266 aac_decoder_select="mdct sinewin"
1267 aac_encoder_select="mdct sinewin"
1268 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1269 ac3_decoder_select="mdct ac3dsp ac3_parser"
1270 ac3_encoder_select="mdct ac3dsp"
1271 ac3_fixed_encoder_select="mdct ac3dsp"
1272 alac_encoder_select="lpc"
1273 amrnb_decoder_select="lsp"
1274 amrwb_decoder_select="lsp"
1275 atrac1_decoder_select="mdct sinewin"
1276 atrac3_decoder_select="mdct"
1277 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1278 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1279 cavs_decoder_select="golomb"
1280 cook_decoder_select="mdct sinewin"
1281 cscd_decoder_suggest="zlib"
1282 dca_decoder_select="mdct"
1283 dnxhd_encoder_select="aandct"
1284 dxa_decoder_select="zlib"
1285 eac3_decoder_select="ac3_decoder"
1286 eac3_encoder_select="mdct ac3dsp"
1287 eamad_decoder_select="aandct"
1288 eatgq_decoder_select="aandct"
1289 eatqi_decoder_select="aandct"
1290 ffv1_decoder_select="golomb"
1291 flac_decoder_select="golomb"
1292 flac_encoder_select="golomb lpc"
1293 flashsv_decoder_select="zlib"
1294 flashsv_encoder_select="zlib"
1295 flashsv2_decoder_select="zlib"
1296 flv_decoder_select="h263_decoder"
1297 flv_encoder_select="h263_encoder"
1298 fraps_decoder_select="huffman"
1299 h261_encoder_select="aandct"
1300 h263_decoder_select="h263_parser"
1301 h263_encoder_select="aandct"
1302 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1303 h263i_decoder_select="h263_decoder"
1304 h263p_encoder_select="h263_encoder"
1305 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1306 h264_dxva2_hwaccel_deps="dxva2api_h"
1307 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1308 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1309 h264_vda_hwaccel_select="vda h264_decoder"
1310 h264_vdpau_decoder_select="vdpau h264_decoder"
1311 imc_decoder_select="fft mdct sinewin"
1312 jpegls_decoder_select="golomb"
1313 jpegls_encoder_select="golomb"
1314 ljpeg_encoder_select="aandct"
1315 loco_decoder_select="golomb"
1316 mjpeg_encoder_select="aandct"
1317 mlp_decoder_select="mlp_parser"
1318 mp1_decoder_select="mpegaudiodsp"
1319 mp1float_decoder_select="mpegaudiodsp"
1320 mp2_decoder_select="mpegaudiodsp"
1321 mp2float_decoder_select="mpegaudiodsp"
1322 mp3_decoder_select="mpegaudiodsp"
1323 mp3adu_decoder_select="mpegaudiodsp"
1324 mp3adufloat_decoder_select="mpegaudiodsp"
1325 mp3float_decoder_select="mpegaudiodsp"
1326 mp3on4_decoder_select="mpegaudiodsp"
1327 mp3on4float_decoder_select="mpegaudiodsp"
1328 mpc7_decoder_select="mpegaudiodsp"
1329 mpc8_decoder_select="mpegaudiodsp"
1330 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1331 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1332 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1333 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1334 mpeg1video_encoder_select="aandct"
1335 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1336 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1337 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1338 mpeg2video_encoder_select="aandct"
1339 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1340 mpeg4_encoder_select="h263_encoder"
1341 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1342 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1343 msmpeg4v1_decoder_select="h263_decoder"
1344 msmpeg4v1_encoder_select="h263_encoder"
1345 msmpeg4v2_decoder_select="h263_decoder"
1346 msmpeg4v2_encoder_select="h263_encoder"
1347 msmpeg4v3_decoder_select="h263_decoder"
1348 msmpeg4v3_encoder_select="h263_encoder"
1349 nellymoser_decoder_select="mdct sinewin"
1350 nellymoser_encoder_select="mdct sinewin"
1351 png_decoder_select="zlib"
1352 png_encoder_select="zlib"
1353 qcelp_decoder_select="lsp"
1354 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1355 ra_144_encoder_select="lpc"
1356 rv10_decoder_select="h263_decoder"
1357 rv10_encoder_select="h263_encoder"
1358 rv20_decoder_select="h263_decoder"
1359 rv20_encoder_select="h263_encoder"
1360 rv30_decoder_select="golomb h264chroma h264pred"
1361 rv40_decoder_select="golomb h264chroma h264pred"
1362 shorten_decoder_select="golomb"
1363 sipr_decoder_select="lsp"
1364 snow_decoder_select="dwt"
1365 snow_encoder_select="aandct dwt"
1366 svq1_encoder_select="aandct"
1367 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1368 svq3_decoder_suggest="zlib"
1369 theora_decoder_select="vp3_decoder"
1370 tiff_decoder_suggest="zlib"
1371 tiff_encoder_suggest="zlib"
1372 truehd_decoder_select="mlp_decoder"
1373 tscc_decoder_select="zlib"
1374 twinvq_decoder_select="mdct lsp sinewin"
1375 vc1_decoder_select="h263_decoder h264chroma"
1376 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1377 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1378 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1379 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1380 vc1image_decoder_select="vc1_decoder"
1381 vorbis_decoder_select="mdct"
1382 vorbis_encoder_select="mdct"
1383 vp6_decoder_select="huffman"
1384 vp6a_decoder_select="vp6_decoder"
1385 vp6f_decoder_select="vp6_decoder"
1386 vp8_decoder_select="h264pred"
1387 wmapro_decoder_select="mdct sinewin"
1388 wmav1_decoder_select="mdct sinewin"
1389 wmav1_encoder_select="mdct sinewin"
1390 wmav2_decoder_select="mdct sinewin"
1391 wmav2_encoder_select="mdct sinewin"
1392 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1393 wmv1_decoder_select="h263_decoder"
1394 wmv1_encoder_select="h263_encoder"
1395 wmv2_decoder_select="h263_decoder"
1396 wmv2_encoder_select="h263_encoder"
1397 wmv3_decoder_select="vc1_decoder"
1398 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1399 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1400 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1401 wmv3image_decoder_select="wmv3_decoder"
1402 zlib_decoder_select="zlib"
1403 zlib_encoder_select="zlib"
1404 zmbv_decoder_select="zlib"
1405 zmbv_encoder_select="zlib"
1406
1407 vaapi_deps="va_va_h"
1408 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1409 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1410
1411 # parsers
1412 h264_parser_select="golomb h264chroma h264dsp h264pred"
1413
1414 # external libraries
1415 libdirac_decoder_deps="libdirac !libschroedinger"
1416 libdirac_encoder_deps="libdirac"
1417 libfaac_encoder_deps="libfaac"
1418 libgsm_decoder_deps="libgsm"
1419 libgsm_encoder_deps="libgsm"
1420 libgsm_ms_decoder_deps="libgsm"
1421 libgsm_ms_encoder_deps="libgsm"
1422 libmp3lame_encoder_deps="libmp3lame"
1423 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1424 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1425 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1426 libopenjpeg_decoder_deps="libopenjpeg"
1427 libschroedinger_decoder_deps="libschroedinger"
1428 libschroedinger_encoder_deps="libschroedinger"
1429 libspeex_decoder_deps="libspeex"
1430 libspeex_encoder_deps="libspeex"
1431 libtheora_encoder_deps="libtheora"
1432 libvo_aacenc_encoder_deps="libvo_aacenc"
1433 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1434 libvorbis_encoder_deps="libvorbis"
1435 libvpx_decoder_deps="libvpx"
1436 libvpx_encoder_deps="libvpx"
1437 libx264_encoder_deps="libx264"
1438 libxavs_encoder_deps="libxavs"
1439 libxvid_encoder_deps="libxvid"
1440
1441 # demuxers / muxers
1442 ac3_demuxer_select="ac3_parser"
1443 asf_stream_muxer_select="asf_muxer"
1444 avisynth_demuxer_deps="avisynth"
1445 dirac_demuxer_select="dirac_parser"
1446 eac3_demuxer_select="ac3_parser"
1447 flac_demuxer_select="flac_parser"
1448 ipod_muxer_select="mov_muxer"
1449 libnut_demuxer_deps="libnut"
1450 libnut_muxer_deps="libnut"
1451 matroska_audio_muxer_select="matroska_muxer"
1452 matroska_demuxer_suggest="zlib bzlib"
1453 mov_demuxer_suggest="zlib"
1454 mp3_demuxer_select="mpegaudio_parser"
1455 mp4_muxer_select="mov_muxer"
1456 mpegtsraw_demuxer_select="mpegts_demuxer"
1457 mxf_d10_muxer_select="mxf_muxer"
1458 ogg_demuxer_select="golomb"
1459 psp_muxer_select="mov_muxer"
1460 rtp_demuxer_select="sdp_demuxer"
1461 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1462 rtsp_demuxer_select="http_protocol rtpdec"
1463 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1464 sap_demuxer_select="sdp_demuxer"
1465 sap_muxer_select="rtp_muxer rtp_protocol"
1466 sdp_demuxer_select="rtpdec"
1467 spdif_muxer_select="aac_parser"
1468 tg2_muxer_select="mov_muxer"
1469 tgp_muxer_select="mov_muxer"
1470 w64_demuxer_deps="wav_demuxer"
1471
1472 # indevs / outdevs
1473 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1474 alsa_outdev_deps="alsa_asoundlib_h"
1475 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1476 dv1394_indev_deps="dv1394 dv_demuxer"
1477 fbdev_indev_deps="linux_fb_h"
1478 jack_indev_deps="jack_jack_h"
1479 libcdio_indev_deps="libcdio"
1480 libdc1394_indev_deps="libdc1394"
1481 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1482 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1483 pulse_indev_deps="libpulse"
1484 sndio_indev_deps="sndio_h"
1485 sndio_outdev_deps="sndio_h"
1486 v4l_indev_deps="linux_videodev_h"
1487 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1488 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1489 vfwcap_indev_extralibs="-lavicap32"
1490 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1491 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1492
1493 # protocols
1494 gopher_protocol_deps="network"
1495 httpproxy_protocol_deps="network"
1496 httpproxy_protocol_select="tcp_protocol"
1497 http_protocol_deps="network"
1498 http_protocol_select="tcp_protocol"
1499 https_protocol_select="tls_protocol"
1500 mmsh_protocol_select="http_protocol"
1501 mmst_protocol_deps="network"
1502 rtmp_protocol_select="tcp_protocol"
1503 rtp_protocol_select="udp_protocol"
1504 tcp_protocol_deps="network"
1505 tls_protocol_deps_any="openssl gnutls"
1506 tls_protocol_select="tcp_protocol"
1507 udp_protocol_deps="network"
1508
1509 # filters
1510 blackframe_filter_deps="gpl"
1511 boxblur_filter_deps="gpl"
1512 cropdetect_filter_deps="gpl"
1513 delogo_filter_deps="gpl"
1514 drawtext_filter_deps="libfreetype"
1515 frei0r_filter_deps="frei0r dlopen strtok_r"
1516 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1517 hqdn3d_filter_deps="gpl"
1518 ocv_filter_deps="libopencv"
1519 scale_filter_deps="swscale"
1520 yadif_filter_deps="gpl"
1521
1522 # libraries
1523 avdevice_deps="avcodec avformat"
1524 avformat_deps="avcodec"
1525 postproc_deps="gpl"
1526
1527 # programs
1528 avconv_deps="avcodec avformat swscale"
1529 avplay_deps="avcodec avformat swscale sdl"
1530 avplay_select="rdft"
1531 avprobe_deps="avcodec avformat"
1532 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1533 avserver_extralibs='$ldl'
1534 ffmpeg_deps="avcodec avformat swscale"
1535
1536 doc_deps="texi2html"
1537
1538 # tests
1539
1540 test_deps(){
1541     suf1=$1
1542     suf2=$2
1543     shift 2
1544     for v; do
1545         dep=${v%=*}
1546         tests=${v#*=}
1547         for name in ${tests}; do
1548             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1549         done
1550     done
1551 }
1552
1553 mxf_d10_test_deps="avfilter"
1554 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1555
1556 test_deps _encoder _decoder                                             \
1557     adpcm_ima_qt                                                        \
1558     adpcm_ima_wav                                                       \
1559     adpcm_ms                                                            \
1560     adpcm_swf                                                           \
1561     adpcm_yamaha=adpcm_yam                                              \
1562     alac                                                                \
1563     asv1                                                                \
1564     asv2                                                                \
1565     bmp                                                                 \
1566     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1567     dvvideo="dv dv_411 dv50"                                            \
1568     ffv1                                                                \
1569     flac                                                                \
1570     flashsv                                                             \
1571     flv                                                                 \
1572     adpcm_g726=g726                                                     \
1573     gif                                                                 \
1574     h261                                                                \
1575     h263="h263 h263p"                                                   \
1576     huffyuv                                                             \
1577     jpegls                                                              \
1578     mjpeg="jpg mjpeg ljpeg"                                             \
1579     mp2                                                                 \
1580     mpeg1video="mpeg mpeg1b"                                            \
1581     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1582     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1583     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1584     mpeg4="mpeg4thread error rc"                                        \
1585     msmpeg4v3=msmpeg4                                                   \
1586     msmpeg4v2                                                           \
1587     pbm=pbmpipe                                                         \
1588     pcx                                                                 \
1589     pgm="pgm pgmpipe"                                                   \
1590     png                                                                 \
1591     ppm="ppm ppmpipe"                                                   \
1592     rawvideo="rgb yuv"                                                  \
1593     roq                                                                 \
1594     rv10                                                                \
1595     rv20                                                                \
1596     sgi                                                                 \
1597     snow="snow snowll"                                                  \
1598     svq1                                                                \
1599     targa=tga                                                           \
1600     tiff                                                                \
1601     wmav1                                                               \
1602     wmav2                                                               \
1603     wmv1                                                                \
1604     wmv2                                                                \
1605
1606 test_deps _muxer _demuxer                                               \
1607     aiff                                                                \
1608     pcm_alaw=alaw                                                       \
1609     asf                                                                 \
1610     au                                                                  \
1611     avi                                                                 \
1612     dv=dv_fmt                                                           \
1613     ffm                                                                 \
1614     flv=flv_fmt                                                         \
1615     gxf                                                                 \
1616     matroska=mkv                                                        \
1617     mmf                                                                 \
1618     mov                                                                 \
1619     pcm_mulaw=mulaw                                                     \
1620     mxf="mxf mxf_d10"                                                   \
1621     nut                                                                 \
1622     ogg                                                                 \
1623     rawvideo=pixfmt                                                     \
1624     rm                                                                  \
1625     swf                                                                 \
1626     mpegts=ts                                                           \
1627     voc                                                                 \
1628     wav                                                                 \
1629     yuv4mpegpipe=yuv4mpeg                                               \
1630
1631 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1632 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1633
1634 # default parameters
1635
1636 logfile="config.log"
1637
1638 # installation paths
1639 prefix_default="/usr/local"
1640 bindir_default='${prefix}/bin'
1641 datadir_default='${prefix}/share/avconv'
1642 incdir_default='${prefix}/include'
1643 libdir_default='${prefix}/lib'
1644 mandir_default='${prefix}/share/man'
1645 shlibdir_default="$libdir_default"
1646
1647 # toolchain
1648 ar_default="ar"
1649 cc_default="gcc"
1650 cc_version=\"unknown\"
1651 host_cc_default="gcc"
1652 ln_s="ln -sf"
1653 nm_default="nm"
1654 objformat="elf"
1655 pkg_config_default=pkg-config
1656 ranlib="ranlib"
1657 yasmexe="yasm"
1658
1659 nm_opts='-g'
1660 nogas=":"
1661
1662 # machine
1663 arch_default=$(uname -m)
1664 cpu="generic"
1665
1666 # OS
1667 target_os_default=$(tolower $(uname -s))
1668 host_os=$target_os_default
1669
1670 # configurable options
1671 enable $PROGRAM_LIST
1672
1673 enable avcodec
1674 enable avdevice
1675 enable avfilter
1676 enable avformat
1677 enable avutil
1678 enable postproc
1679 enable swscale
1680
1681 enable asm
1682 enable debug
1683 enable doc
1684 enable fastdiv
1685 enable network
1686 enable optimizations
1687 enable safe_bitstream_reader
1688 enable static
1689 enable swscale_alpha
1690
1691 # build settings
1692 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1693 AVSERVERLDFLAGS=-Wl,-E
1694 LIBPREF="lib"
1695 LIBSUF=".a"
1696 FULLNAME='$(NAME)$(BUILDSUF)'
1697 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1698 SLIBPREF="lib"
1699 SLIBSUF=".so"
1700 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1701 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1702 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1703 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1704 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1705 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1706
1707 AS_O='-o $@'
1708 CC_O='-o $@'
1709
1710 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1711 host_libs='-lm'
1712
1713 target_path='$(CURDIR)'
1714
1715 # since the object filename is not given with the -MM flag, the compiler
1716 # is only able to print the basename, and we must add the path ourselves
1717 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1718 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1719
1720 # find source path
1721 if test -f configure; then
1722     source_path=.
1723 else
1724     source_path=$(cd $(dirname "$0"); pwd)
1725     echo "$source_path" | grep -q '[[:blank:]]' &&
1726         die "Out of tree builds are impossible with whitespace in source path."
1727     test -e "$source_path/config.h" &&
1728         die "Out of tree builds are impossible with config.h in source dir."
1729 fi
1730
1731 for v in "$@"; do
1732     r=${v#*=}
1733     l=${v%"$r"}
1734     r=$(sh_quote "$r")
1735     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1736 done
1737
1738 find_things(){
1739     thing=$1
1740     pattern=$2
1741     file=$source_path/$3
1742     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1743 }
1744
1745 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1746 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1747 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1748 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1749 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1750 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1751 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1752 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1753 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1754 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1755 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1756
1757 ALL_COMPONENTS="
1758     $BSF_LIST
1759     $DECODER_LIST
1760     $DEMUXER_LIST
1761     $ENCODER_LIST
1762     $FILTER_LIST
1763     $HWACCEL_LIST
1764     $INDEV_LIST
1765     $MUXER_LIST
1766     $OUTDEV_LIST
1767     $PARSER_LIST
1768     $PROTOCOL_LIST
1769 "
1770
1771 find_tests(){
1772     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1773 }
1774
1775 ACODEC_TESTS=$(find_tests acodec)
1776 VCODEC_TESTS=$(find_tests vsynth1)
1777 LAVF_TESTS=$(find_tests lavf)
1778 LAVFI_TESTS=$(find_tests lavfi)
1779 SEEK_TESTS=$(find_tests seek seek_)
1780
1781 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1782
1783 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1784
1785 for n in $COMPONENT_LIST; do
1786     v=$(toupper ${n%s})_LIST
1787     eval enable \$$v
1788     eval ${n}_if_any="\$$v"
1789 done
1790
1791 enable $ARCH_EXT_LIST $ALL_TESTS
1792
1793 die_unknown(){
1794     echo "Unknown option \"$1\"."
1795     echo "See $0 --help for available options."
1796     exit 1
1797 }
1798
1799 show_list() {
1800     suffix=_$1
1801     shift
1802     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1803     exit 0
1804 }
1805
1806 for opt do
1807     optval="${opt#*=}"
1808     case "$opt" in
1809     --extra-ldflags=*) add_ldflags $optval
1810     ;;
1811     --extra-libs=*) add_extralibs $optval
1812     ;;
1813     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1814     ;;
1815     --enable-debug=*) debuglevel="$optval"
1816     ;;
1817     --disable-everything)
1818     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1819     ;;
1820     --enable-*=*|--disable-*=*)
1821     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1822     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1823     eval list=\$$(toupper $thing)_LIST
1824     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1825     $action $(filter "$name" $list)
1826     ;;
1827     --enable-?*|--disable-?*)
1828     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1829     if is_in $option $COMPONENT_LIST; then
1830         test $action = disable && action=unset
1831         eval $action \$$(toupper ${option%s})_LIST
1832     elif is_in $option $CMDLINE_SELECT; then
1833         $action $option
1834     else
1835         die_unknown $opt
1836     fi
1837     ;;
1838     --list-*)
1839         NAME="${opt#--list-}"
1840         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1841         NAME=${NAME%s}
1842         eval show_list $NAME \$$(toupper $NAME)_LIST
1843     ;;
1844     --help|-h) show_help
1845     ;;
1846     *)
1847     optname="${opt%%=*}"
1848     optname="${optname#--}"
1849     optname=$(echo "$optname" | sed 's/-/_/g')
1850     if is_in $optname $CMDLINE_SET; then
1851         eval $optname='$optval'
1852     elif is_in $optname $CMDLINE_APPEND; then
1853         append $optname "$optval"
1854     else
1855          die_unknown $opt
1856     fi
1857     ;;
1858     esac
1859 done
1860
1861 disabled logging && logfile=/dev/null
1862
1863 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1864 set >> $logfile
1865
1866 test -n "$cross_prefix" && enable cross_compile
1867
1868 if enabled cross_compile; then
1869     test -n "$arch" && test -n "$target_os" ||
1870         die "Must specify target arch and OS when cross-compiling"
1871 fi
1872
1873 set_default arch target_os
1874
1875 ar_default="${cross_prefix}${ar_default}"
1876 cc_default="${cross_prefix}${cc_default}"
1877 nm_default="${cross_prefix}${nm_default}"
1878 pkg_config_default="${cross_prefix}${pkg_config_default}"
1879 ranlib="${cross_prefix}${ranlib}"
1880
1881 sysinclude_default="${sysroot}/usr/include"
1882
1883 set_default cc nm pkg_config sysinclude
1884 enabled cross_compile || host_cc_default=$cc
1885 set_default host_cc
1886
1887 if ! $pkg_config --version >/dev/null 2>&1; then
1888     warn "$pkg_config not found, library detection may fail."
1889     pkg_config=false
1890 fi
1891
1892 exesuf() {
1893     case $1 in
1894         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1895     esac
1896 }
1897
1898 EXESUF=$(exesuf $target_os)
1899 HOSTEXESUF=$(exesuf $host_os)
1900
1901 # set temporary file name
1902 : ${TMPDIR:=$TEMPDIR}
1903 : ${TMPDIR:=$TMP}
1904 : ${TMPDIR:=/tmp}
1905
1906 if ! check_cmd mktemp -u XXXXXX; then
1907     # simple replacement for missing mktemp
1908     # NOT SAFE FOR GENERAL USE
1909     mktemp(){
1910         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1911     }
1912 fi
1913
1914 tmpfile(){
1915     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1916         (set -C; exec > $tmp) 2>/dev/null ||
1917         die "Unable to create temporary file in $TMPDIR."
1918     append TMPFILES $tmp
1919     eval $1=$tmp
1920 }
1921
1922 trap 'rm -f -- $TMPFILES' EXIT
1923
1924 tmpfile TMPASM .asm
1925 tmpfile TMPC   .c
1926 tmpfile TMPE   $EXESUF
1927 tmpfile TMPH   .h
1928 tmpfile TMPO   .o
1929 tmpfile TMPS   .S
1930 tmpfile TMPSH  .sh
1931 tmpfile TMPV   .ver
1932
1933 unset -f mktemp
1934
1935 chmod +x $TMPE
1936
1937 # make sure we can execute files in $TMPDIR
1938 cat > $TMPSH 2>> $logfile <<EOF
1939 #! /bin/sh
1940 EOF
1941 chmod +x $TMPSH >> $logfile 2>&1
1942 if ! $TMPSH >> $logfile 2>&1; then
1943     cat <<EOF
1944 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1945 variable to another directory and make sure that it is not mounted noexec.
1946 EOF
1947     die "Sanity test failed."
1948 fi
1949
1950 filter_asflags=echo
1951 filter_cflags=echo
1952 filter_cppflags=echo
1953
1954 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1955     cc_type=llvm_gcc
1956     cc_version=__VERSION__
1957     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1958     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1959     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     speed_cflags='-O3'
1962     size_cflags='-Os'
1963 elif $cc -v 2>&1 | grep -qi ^gcc; then
1964     cc_type=gcc
1965     cc_version=__VERSION__
1966     gcc_version=$($cc --version | head -n1)
1967     gcc_basever=$($cc -dumpversion)
1968     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1969     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1970     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1971     if ! $cc -dumpversion | grep -q '^2\.'; then
1972         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1973         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1974     fi
1975     speed_cflags='-O3'
1976     size_cflags='-Os'
1977 elif $cc --version 2>/dev/null | grep -q Intel; then
1978     cc_type=icc
1979     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1980     cc_ident=$($cc --version | head -n1)
1981     icc_version=$($cc -dumpversion)
1982     CC_DEPFLAGS='-MMD'
1983     AS_DEPFLAGS='-MMD'
1984     speed_cflags='-O3'
1985     size_cflags='-Os'
1986     noopt_cflags='-O1'
1987 elif $cc -v 2>&1 | grep -q xlc; then
1988     cc_type=xlc
1989     cc_version="AV_STRINGIFY(__IBMC__)"
1990     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1991     speed_cflags='-O5'
1992     size_cflags='-O5 -qcompact'
1993 elif $cc -V 2>/dev/null | grep -q Compaq; then
1994     cc_type=ccc
1995     cc_version="AV_STRINGIFY(__DECC_VER)"
1996     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1997     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1998     debuglevel=3
1999     add_ldflags -Wl,-z,now # calls to libots crash without this
2000     speed_cflags='-fast'
2001     size_cflags='-O1'
2002 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2003     test -d "$sysroot" || die "No valid sysroot specified."
2004     cc_type=armcc
2005     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2006     cc_ident=$($cc --vsn | head -n1)
2007     armcc_conf="$PWD/armcc.conf"
2008     $cc --arm_linux_configure                 \
2009         --arm_linux_config_file="$armcc_conf" \
2010         --configure_sysroot="$sysroot"        \
2011         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2012         die "Error creating armcc configuration file."
2013     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2014     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2015     as_default="${cross_prefix}gcc"
2016     CC_DEPFLAGS='-MMD'
2017     AS_DEPFLAGS='-MMD'
2018     speed_cflags='-O3'
2019     size_cflags='-Os'
2020     filter_asflags="filter_out -W${armcc_opt}*"
2021 elif $cc -version 2>/dev/null | grep -q TMS470; then
2022     cc_type=tms470
2023     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2024     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2025     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2026     CC_O='-fr=$(@D)'
2027     as_default="${cross_prefix}gcc"
2028     ld_default="${cross_prefix}gcc"
2029     TMPO=$(basename $TMPC .c).o
2030     append TMPFILES $TMPO
2031     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2032     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2033     AS_DEPFLAGS='-MMD'
2034     speed_cflags='-O3 -mf=5'
2035     size_cflags='-O3 -mf=2'
2036     filter_cflags=tms470_flags
2037     tms470_flags(){
2038         for flag; do
2039             case $flag in
2040                 -march=*|-mcpu=*)
2041                     case "${flag#*=}" in
2042                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2043                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2044                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2045                         armv6*|arm11*)          echo -mv=6   ;;
2046                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2047                                                 echo -mv=5e  ;;
2048                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2049                     esac
2050                     ;;
2051                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2052                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2053                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2054                 -msoft-float)   echo --float_support=vfplib       ;;
2055                 -O[0-3]|-mf=*)  echo $flag                        ;;
2056                 -g)             echo -g -mn                       ;;
2057                 -pds=*)         echo $flag                        ;;
2058             esac
2059         done
2060     }
2061 elif $cc -v 2>&1 | grep -q clang; then
2062     cc_type=clang
2063     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2064         cc_version=__clang_version__ || cc_version=__VERSION__
2065     cc_ident=$($cc --version | head -n1)
2066     CC_DEPFLAGS='-MMD'
2067     AS_DEPFLAGS='-MMD'
2068     speed_cflags='-O3'
2069     size_cflags='-Os'
2070 elif $cc -V 2>&1 | grep -q Sun; then
2071     cc_type=suncc
2072     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2073     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2074     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2075     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2076     add_ldflags -xc99
2077     speed_cflags='-O5'
2078     size_cflags='-O5 -xspace'
2079     filter_cflags=suncc_flags
2080     suncc_flags(){
2081         for flag; do
2082             case $flag in
2083                 -march=*|-mcpu=*)
2084                     case "${flag#*=}" in
2085                         native)                   echo -xtarget=native       ;;
2086                         v9|niagara)               echo -xarch=sparc          ;;
2087                         ultrasparc)               echo -xarch=sparcvis       ;;
2088                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2089                         i586|pentium)             echo -xchip=pentium        ;;
2090                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2091                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2092                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2093                         pentium4*)          echo -xtarget=pentium4           ;;
2094                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2095                         *-sse3)             echo -xarch=sse3                 ;;
2096                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2097                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2098                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2099                         k8|opteron|athlon64|athlon-fx)
2100                                                   echo -xarch=sse2a          ;;
2101                         athlon*)                  echo -xarch=pentium_proa   ;;
2102                     esac
2103                     ;;
2104                 -std=c99)             echo -xc99              ;;
2105                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2106                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2107                 -W*,*)                echo $flag              ;;
2108                 -f*-*|-W*)                                    ;;
2109                 *)                    echo $flag              ;;
2110             esac
2111         done
2112     }
2113 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2114     cc_type=pathscale
2115     cc_version=__PATHSCALE__
2116     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2117     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2118     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2119     speed_cflags='-O2'
2120     size_cflags='-Os'
2121     filter_cflags='filter_out -Wdisabled-optimization'
2122 elif $cc -v 2>&1 | grep -q Open64; then
2123     cc_type=open64
2124     cc_version=__OPEN64__
2125     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2126     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2127     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2128     speed_cflags='-O2'
2129     size_cflags='-Os'
2130     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2131 fi
2132
2133 test -n "$cc_type" && enable $cc_type ||
2134     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2135
2136 : ${as_default:=$cc}
2137 : ${dep_cc_default:=$cc}
2138 : ${ld_default:=$cc}
2139 set_default ar as dep_cc ld
2140
2141 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2142 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2143
2144 add_cflags $extra_cflags
2145 add_asflags $extra_cflags
2146
2147 if test -n "$sysroot"; then
2148     case "$cc_type" in
2149         gcc|llvm_gcc|clang)
2150             add_cppflags --sysroot="$sysroot"
2151             add_ldflags --sysroot="$sysroot"
2152         ;;
2153         tms470)
2154             add_cppflags -I"$sysinclude"
2155             add_ldflags  --sysroot="$sysroot"
2156         ;;
2157     esac
2158 fi
2159
2160 if test "$cpu" = host; then
2161     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2162
2163     case "$cc_type" in
2164         gcc|llvm_gcc)
2165             check_native(){
2166                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2167                 sed -n "/cc1.*$1=/{
2168                             s/.*$1=\\([^ ]*\\).*/\\1/
2169                             p
2170                             q
2171                         }" $TMPE
2172             }
2173             cpu=$(check_native -march || check_native -mcpu)
2174         ;;
2175     esac
2176
2177     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2178 fi
2179
2180 # Deal with common $arch aliases
2181 case "$arch" in
2182     arm*)
2183         arch="arm"
2184     ;;
2185     mips|mipsel|IP*)
2186         arch="mips"
2187     ;;
2188     mips64*)
2189         arch="mips"
2190         subarch="mips64"
2191     ;;
2192     parisc|hppa)
2193         arch="parisc"
2194     ;;
2195     parisc64|hppa64)
2196         arch="parisc"
2197         subarch="parisc64"
2198     ;;
2199     "Power Macintosh"|ppc|powerpc)
2200         arch="ppc"
2201     ;;
2202     ppc64|powerpc64)
2203         arch="ppc"
2204         subarch="ppc64"
2205     ;;
2206     s390|s390x)
2207         arch="s390"
2208     ;;
2209     sh4|sh)
2210         arch="sh4"
2211     ;;
2212     sun4u|sparc64)
2213         arch="sparc"
2214         subarch="sparc64"
2215     ;;
2216     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2217         arch="x86"
2218     ;;
2219 esac
2220
2221 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2222 enable $arch
2223
2224 # Add processor-specific flags
2225 if test "$cpu" = generic; then
2226     : do nothing
2227 elif enabled ppc; then
2228
2229     case $(tolower $cpu) in
2230         601|ppc601|powerpc601)
2231             cpuflags="-mcpu=601"
2232             disable altivec
2233         ;;
2234         603*|ppc603*|powerpc603*)
2235             cpuflags="-mcpu=603"
2236             disable altivec
2237         ;;
2238         604*|ppc604*|powerpc604*)
2239             cpuflags="-mcpu=604"
2240             disable altivec
2241         ;;
2242         g3|75*|ppc75*|powerpc75*)
2243             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2244             disable altivec
2245         ;;
2246         g4|745*|ppc745*|powerpc745*)
2247             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2248         ;;
2249         74*|ppc74*|powerpc74*)
2250             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2251         ;;
2252         g5|970|ppc970|powerpc970|power4*)
2253             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2254         ;;
2255         cell)
2256             cpuflags="-mcpu=cell"
2257             enable ldbrx
2258         ;;
2259         e500v2)
2260             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2261             disable altivec
2262         ;;
2263         e500)
2264             cpuflags="-mcpu=8540 -mhard-float"
2265             disable altivec
2266         ;;
2267     esac
2268
2269 elif enabled x86; then
2270
2271     case $cpu in
2272         i[345]86|pentium)
2273             cpuflags="-march=$cpu"
2274             disable mmx
2275         ;;
2276         # targets that do NOT support conditional mov (cmov)
2277         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2278             cpuflags="-march=$cpu"
2279             disable cmov
2280         ;;
2281         # targets that do support conditional mov (cmov)
2282         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2283             cpuflags="-march=$cpu"
2284             enable cmov
2285             enable fast_cmov
2286         ;;
2287         # targets that do support conditional mov but on which it's slow
2288         pentium4|pentium4m|prescott|nocona)
2289             cpuflags="-march=$cpu"
2290             enable cmov
2291             disable fast_cmov
2292         ;;
2293     esac
2294
2295 elif enabled sparc; then
2296
2297     case $cpu in
2298         niagara)
2299             cpuflags="-mcpu=$cpu"
2300             disable vis
2301         ;;
2302         sparc64)
2303             cpuflags="-mcpu=v9"
2304         ;;
2305     esac
2306
2307 elif enabled arm; then
2308
2309     case $cpu in
2310         armv*)
2311             cpuflags="-march=$cpu"
2312             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2313         ;;
2314         *)
2315             cpuflags="-mcpu=$cpu"
2316             case $cpu in
2317                 cortex-a*)                               subarch=armv7a  ;;
2318                 cortex-r*)                               subarch=armv7r  ;;
2319                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2320                 arm11*)                                  subarch=armv6   ;;
2321                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2322                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2323             esac
2324         ;;
2325     esac
2326
2327 elif enabled alpha; then
2328
2329     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2330
2331 elif enabled bfin; then
2332
2333     cpuflags="-mcpu=$cpu"
2334
2335 elif enabled mips; then
2336
2337     cpuflags="-march=$cpu"
2338
2339 elif enabled avr32; then
2340
2341     case $cpu in
2342         ap7[02]0[0-2])
2343             subarch="avr32_ap"
2344             cpuflags="-mpart=$cpu"
2345         ;;
2346         ap)
2347             subarch="avr32_ap"
2348             cpuflags="-march=$cpu"
2349         ;;
2350         uc3[ab]*)
2351             subarch="avr32_uc"
2352             cpuflags="-mcpu=$cpu"
2353         ;;
2354         uc)
2355             subarch="avr32_uc"
2356             cpuflags="-march=$cpu"
2357         ;;
2358     esac
2359
2360 fi
2361
2362 add_cflags $cpuflags
2363 add_asflags $cpuflags
2364
2365 # compiler sanity check
2366 check_exec <<EOF
2367 int main(void){ return 0; }
2368 EOF
2369 if test "$?" != 0; then
2370     echo "$cc is unable to create an executable file."
2371     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2372         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2373         echo "Only do this if you know what cross compiling means."
2374     fi
2375     die "C compiler test failed."
2376 fi
2377
2378 add_cppflags -D_ISOC99_SOURCE
2379 check_cflags -std=c99
2380 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2381 #include <stdlib.h>
2382 EOF
2383 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2384 #include <stdlib.h>
2385 EOF
2386
2387 check_host_cflags -std=c99
2388 check_host_cflags -Wall
2389
2390 case "$arch" in
2391     alpha|ia64|mips|parisc|sparc)
2392         spic=$shared
2393     ;;
2394     x86)
2395         subarch="x86_32"
2396         check_cc <<EOF && subarch="x86_64"
2397         int test[(int)sizeof(char*) - 7];
2398 EOF
2399         if test "$subarch" = "x86_64"; then
2400             spic=$shared
2401         fi
2402     ;;
2403 esac
2404
2405 enable $subarch
2406 enabled spic && enable pic
2407
2408 # OS specific
2409 case $target_os in
2410     haiku)
2411         prefix_default="/boot/common"
2412         network_extralibs="-lnetwork"
2413         host_libs=
2414         ;;
2415     sunos)
2416         AVSERVERLDFLAGS=""
2417         SHFLAGS='-shared -Wl,-h,$$(@F)'
2418         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2419         network_extralibs="-lsocket -lnsl"
2420         add_cppflags -D__EXTENSIONS__
2421         # When using suncc to build, the Solaris linker will mark
2422         # an executable with each instruction set encountered by
2423         # the Solaris assembler.  As our libraries contain their own
2424         # guards for processor-specific code, instead suppress
2425         # generation of the HWCAPS ELF section on Solaris x86 only.
2426         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2427         nm_opts='-P -g'
2428         ;;
2429     netbsd)
2430         disable symver
2431         oss_indev_extralibs="-lossaudio"
2432         oss_outdev_extralibs="-lossaudio"
2433         ;;
2434     openbsd)
2435         enable malloc_aligned
2436         # On OpenBSD 4.5. the compiler does not use PIC unless
2437         # explicitly using -fPIC. Libav builds fine without PIC,
2438         # however the generated executable will not do anything
2439         # (simply quits with exit-code 1, no crash, no output).
2440         # Thus explicitly enable PIC here.
2441         enable pic
2442         disable symver
2443         SHFLAGS='-shared'
2444         oss_indev_extralibs="-lossaudio"
2445         oss_outdev_extralibs="-lossaudio"
2446         ;;
2447     dragonfly)
2448         enable malloc_aligned
2449         disable symver
2450         ;;
2451     freebsd)
2452         enable malloc_aligned
2453         ;;
2454     bsd/os)
2455         add_extralibs -lpoll -lgnugetopt
2456         ;;
2457     darwin)
2458         enable malloc_aligned
2459         gas="gas-preprocessor.pl $cc"
2460         enabled ppc && add_asflags -force_cpusubtype_ALL
2461         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2462         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2463         add_ldflags -Wl,-dynamic,-search_paths_first
2464         SLIBSUF=".dylib"
2465         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2466         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2467         AVSERVERLDFLAGS=-Wl,-bind_at_load
2468         objformat="macho"
2469         enabled x86_64 && objformat="macho64"
2470         enabled_any pic shared ||
2471             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2472         ;;
2473     mingw32*)
2474         if test $target_os = "mingw32ce"; then
2475             disable network
2476         else
2477             target_os=mingw32
2478         fi
2479         LIBTARGET=i386
2480         if enabled x86_64; then
2481             enable malloc_aligned
2482             LIBTARGET="i386:x86-64"
2483         elif enabled arm; then
2484             LIBTARGET=arm-wince
2485         fi
2486         shlibdir_default="$bindir_default"
2487         SLIBPREF=""
2488         SLIBSUF=".dll"
2489         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2490         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2491         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2492         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2493         SLIB_INSTALL_LINKS=
2494         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2495         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2496         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'
2497         objformat="win32"
2498         dlltool="${cross_prefix}dlltool"
2499         enable dos_paths
2500         check_cflags -fno-common
2501         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2502                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2503                 die "ERROR: MinGW runtime version must be >= 3.15."
2504         add_cppflags -U__STRICT_ANSI__
2505         ;;
2506     cygwin*)
2507         target_os=cygwin
2508         shlibdir_default="$bindir_default"
2509         SLIBPREF="cyg"
2510         SLIBSUF=".dll"
2511         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2512         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2513         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2514         objformat="win32"
2515         enable dos_paths
2516         check_cflags -fno-common
2517         add_cppflags -U__STRICT_ANSI__
2518         ;;
2519     *-dos|freedos|opendos)
2520         network_extralibs="-lsocket"
2521         objformat="coff"
2522         enable dos_paths
2523         add_cppflags -U__STRICT_ANSI__
2524         ;;
2525     linux)
2526         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2527         enable dv1394
2528         ;;
2529     irix*)
2530         target_os=irix
2531         ranlib="echo ignoring ranlib"
2532         ;;
2533     os/2*)
2534         ln_s="cp -f"
2535         objformat="aout"
2536         add_cppflags -D_GNU_SOURCE
2537         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2538         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2539         AVSERVERLDFLAGS=""
2540         LIBSUF="_s.a"
2541         SLIBPREF=""
2542         SLIBSUF=".dll"
2543         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2544         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2545         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2546           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2547           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2548           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2549           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2550           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2551         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2552           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2553         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2554         enable dos_paths
2555         ;;
2556     gnu/kfreebsd)
2557         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2558         ;;
2559     gnu)
2560         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2561         ;;
2562     qnx)
2563         add_cppflags -D_QNX_SOURCE
2564         network_extralibs="-lsocket"
2565         ;;
2566     symbian)
2567         SLIBSUF=".dll"
2568         enable dos_paths
2569         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2570         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2571         add_ldflags -Wl,--target1-abs,--no-undefined \
2572                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2573                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2574         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2575                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2576                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2577         ;;
2578     none)
2579         ;;
2580     *)
2581         die "Unknown OS '$target_os'."
2582         ;;
2583 esac
2584
2585 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2586
2587 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2588
2589 set_default $PATHS_LIST
2590
2591 # we need to build at least one lib type
2592 if ! enabled_any static shared; then
2593     cat <<EOF
2594 At least one library type must be built.
2595 Specify --enable-static to build the static libraries or --enable-shared to
2596 build the shared libraries as well. To only build the shared libraries specify
2597 --disable-static in addition to --enable-shared.
2598 EOF
2599     exit 1;
2600 fi
2601
2602 die_license_disabled() {
2603     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2604 }
2605
2606 die_license_disabled gpl libcdio
2607 die_license_disabled gpl libx264
2608 die_license_disabled gpl libxavs
2609 die_license_disabled gpl libxvid
2610 die_license_disabled gpl x11grab
2611
2612 die_license_disabled nonfree libfaac
2613 die_license_disabled nonfree openssl
2614
2615 die_license_disabled version3 libopencore_amrnb
2616 die_license_disabled version3 libopencore_amrwb
2617 die_license_disabled version3 libvo_aacenc
2618 die_license_disabled version3 libvo_amrwbenc
2619
2620 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2621
2622 disabled optimizations || check_cflags -fomit-frame-pointer
2623
2624 enable_pic() {
2625     enable pic
2626     add_cppflags -DPIC
2627     add_cflags   -fPIC
2628     add_asflags  -fPIC
2629 }
2630
2631 enabled pic && enable_pic
2632
2633 check_cc <<EOF || die "Symbol mangling check failed."
2634 int ff_extern;
2635 EOF
2636 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2637 extern_prefix=${sym%%ff_extern*}
2638
2639 check_cc <<EOF && enable inline_asm
2640 void foo(void) { __asm__ volatile ("" ::); }
2641 EOF
2642
2643 _restrict=
2644 for restrict_keyword in restrict __restrict__ __restrict; do
2645     check_cc <<EOF && _restrict=$restrict_keyword && break
2646 void foo(char * $restrict_keyword p);
2647 EOF
2648 done
2649
2650 check_cc <<EOF && enable attribute_packed
2651 struct { int x; } __attribute__((packed)) x;
2652 EOF
2653
2654 check_cc <<EOF && enable attribute_may_alias
2655 union { int x; } __attribute__((may_alias)) x;
2656 EOF
2657
2658 check_cc <<EOF || die "endian test failed"
2659 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2660 EOF
2661 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2662
2663 if enabled alpha; then
2664
2665     check_cflags -mieee
2666
2667 elif enabled arm; then
2668
2669     enabled thumb && check_cflags -mthumb || check_cflags -marm
2670     nogas=die
2671
2672     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2673         enable vfp_args
2674     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2675         case "${cross_prefix:-$cc}" in
2676             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2677             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2678 __asm__ (".eabi_attribute 28, 1");
2679 int main(void) { return 0; }
2680 EOF
2681         esac
2682         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2683     fi
2684
2685     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2686     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2687     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2688     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2689     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2690     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2691     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2692
2693     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2694
2695     enabled_all armv6t2 shared !pic && enable_pic
2696
2697 elif enabled mips; then
2698
2699     check_asm loongson '"dmult.g $1, $2, $3"'
2700     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2701
2702 elif enabled ppc; then
2703
2704     enable local_aligned_8 local_aligned_16
2705
2706     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2707     check_asm ibm_asm   '"add 0, 0, 0"'
2708     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2709     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2710
2711     # AltiVec flags: The FSF version of GCC differs from the Apple version
2712     if enabled altivec; then
2713         nogas=warn
2714         check_cflags -maltivec -mabi=altivec &&
2715         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2716         check_cflags -faltivec
2717
2718         # check if our compiler supports Motorola AltiVec C API
2719         check_cc <<EOF || disable altivec
2720 $inc_altivec_h
2721 int main(void) {
2722     vector signed int v1, v2, v3;
2723     v1 = vec_add(v2,v3);
2724     return 0;
2725 }
2726 EOF
2727
2728         # check if our compiler supports braces for vector declarations
2729         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2730 $inc_altivec_h
2731 int main (void) { (vector int) {1}; return 0; }
2732 EOF
2733     fi
2734
2735 elif enabled sparc; then
2736
2737     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2738         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2739
2740 elif enabled x86; then
2741
2742     enable local_aligned_8 local_aligned_16
2743
2744     # check whether EBP is available on x86
2745     # As 'i' is stored on the stack, this program will crash
2746     # if the base pointer is used to access it because the
2747     # base pointer is cleared in the inline assembly code.
2748     check_exec_crash <<EOF && enable ebp_available
2749     volatile int i=0;
2750     __asm__ volatile (
2751         "xorl %%ebp, %%ebp"
2752     ::: "%ebp");
2753     return i;
2754 EOF
2755
2756     # check whether EBX is available on x86
2757     check_asm ebx_available '""::"b"(0)' &&
2758         check_asm ebx_available '"":::"%ebx"'
2759
2760     # check whether xmm clobbers are supported
2761     check_asm xmm_clobbers '"":::"%xmm0"'
2762
2763     # check whether binutils is new enough to compile SSSE3/MMX2
2764     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2765     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2766
2767     if ! disabled_any asm mmx yasm; then
2768         if check_cmd $yasmexe --version; then
2769             enabled x86_64 && yasm_extra="-m amd64"
2770             yasm_debug="-g dwarf2"
2771         elif check_cmd nasm -v; then
2772             yasmexe=nasm
2773             yasm_debug="-g -F dwarf"
2774             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2775         fi
2776
2777         YASMFLAGS="-f $objformat $yasm_extra"
2778         enabled pic               && append YASMFLAGS "-DPIC"
2779         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2780         case "$objformat" in
2781             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2782         esac
2783
2784         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2785             die "yasm not found, use --disable-yasm for a crippled build"
2786         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2787     fi
2788
2789     case "$cpu" in
2790         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2791             disable fast_clz
2792         ;;
2793     esac
2794
2795 fi
2796
2797 if enabled asm; then
2798     as=${gas:=$as}
2799     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2800         $nogas "GNU assembler not found, install gas-preprocessor"
2801 fi
2802
2803 check_ldflags -Wl,--as-needed
2804
2805 if check_func dlopen; then
2806     ldl=
2807 elif check_func dlopen -ldl; then
2808     ldl=-ldl
2809 fi
2810
2811 if enabled network; then
2812     check_type "sys/types.h sys/socket.h" socklen_t
2813     check_type netdb.h "struct addrinfo"
2814     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2815     check_type netinet/in.h "struct sockaddr_in6"
2816     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2817     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2818     # Prefer arpa/inet.h over winsock2
2819     if check_header arpa/inet.h ; then
2820         check_func closesocket
2821     elif check_header winsock2.h ; then
2822         check_func_headers winsock2.h closesocket -lws2 && \
2823             network_extralibs="-lws2" || \
2824         { check_func_headers winsock2.h closesocket -lws2_32 && \
2825             network_extralibs="-lws2_32"; }
2826         check_type ws2tcpip.h socklen_t
2827         check_type ws2tcpip.h "struct addrinfo"
2828         check_type ws2tcpip.h "struct ipv6_mreq"
2829         check_type ws2tcpip.h "struct sockaddr_in6"
2830         check_type ws2tcpip.h "struct sockaddr_storage"
2831         check_struct winsock2.h "struct sockaddr" sa_len
2832     else
2833         disable network
2834     fi
2835 fi
2836
2837 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2838 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2839
2840 check_func  fcntl
2841 check_func  fork
2842 check_func  getaddrinfo $network_extralibs
2843 check_func  gethrtime
2844 check_func  getrusage
2845 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2846 check_func  inet_aton $network_extralibs
2847 check_func  isatty
2848 check_func  localtime_r
2849 check_func  ${malloc_prefix}memalign            && enable memalign
2850 check_func  mkstemp
2851 check_func  mmap
2852 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2853 check_func  setrlimit
2854 check_func  strerror_r
2855 check_func  strptime
2856 check_func  strtok_r
2857 check_func  sched_getaffinity
2858 check_func_headers io.h setmode
2859 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2860 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2861 check_func_headers windows.h GetProcessTimes
2862 check_func_headers windows.h MapViewOfFile
2863 check_func_headers windows.h VirtualAlloc
2864
2865 check_header dlfcn.h
2866 check_header dxva2api.h
2867 check_header malloc.h
2868 check_header poll.h
2869 check_header sys/mman.h
2870 check_header sys/resource.h
2871 check_header sys/select.h
2872 check_header vdpau/vdpau.h
2873 check_header vdpau/vdpau_x11.h
2874 check_header X11/extensions/XvMClib.h
2875
2876 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2877
2878 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2879 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2880
2881 if ! disabled w32threads && ! enabled pthreads; then
2882     check_func _beginthreadex && enable w32threads
2883 fi
2884
2885 # check for some common methods of building with pthread support
2886 # do this before the optional library checks as some of them require pthreads
2887 if ! disabled pthreads && ! enabled w32threads; then
2888     enable pthreads
2889     if check_func pthread_create; then
2890         :
2891     elif check_func pthread_create -pthread; then
2892         add_cflags -pthread
2893         add_extralibs -pthread
2894     elif check_func pthread_create -pthreads; then
2895         add_cflags -pthreads
2896         add_extralibs -pthreads
2897     elif check_func pthread_create -lpthreadGC2; then
2898         add_extralibs -lpthreadGC2
2899     elif ! check_lib pthread.h pthread_create -lpthread; then
2900         disable pthreads
2901     fi
2902 fi
2903
2904 for thread in $THREADS_LIST; do
2905     if enabled $thread; then
2906         test -n "$thread_type" &&
2907             die "ERROR: Only one thread type must be selected." ||
2908             thread_type="$thread"
2909     fi
2910 done
2911
2912 check_lib math.h sin -lm && LIBM="-lm"
2913 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2914
2915 check_mathfunc exp2
2916 check_mathfunc exp2f
2917 check_mathfunc llrint
2918 check_mathfunc llrintf
2919 check_mathfunc log2
2920 check_mathfunc log2f
2921 check_mathfunc lrint
2922 check_mathfunc lrintf
2923 check_mathfunc round
2924 check_mathfunc roundf
2925 check_mathfunc trunc
2926 check_mathfunc truncf
2927
2928 # these are off by default, so fail if requested and not available
2929 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2930 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2931 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2932 enabled libdirac   && require_pkg_config dirac                          \
2933     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2934     "dirac_decoder_init dirac_encoder_init"
2935 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2936 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2937 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2938 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2939 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2940 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2941 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2942 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2943 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2944 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2945 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2946 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2947 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2948 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2949 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2950 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2951 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2952 enabled libvpx     && {
2953     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2954                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2955     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2956                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2957 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2958                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2959                         die "ERROR: libx264 version must be >= 0.118."; }
2960 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2961 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2962 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2963 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2964                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2965                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2966                         die "ERROR: openssl not found"; }
2967
2968 # libdc1394 check
2969 if enabled libdc1394; then
2970     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2971         enable libdc1394_2; } ||
2972     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2973         enable libdc1394_1; } ||
2974     die "ERROR: No version of libdc1394 found "
2975 fi
2976
2977 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2978     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2979     enable sdl &&
2980     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2981 fi
2982
2983 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2984
2985 check_header linux/fb.h
2986 check_header linux/videodev.h
2987 check_header linux/videodev2.h
2988 check_header sys/videoio.h
2989
2990 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2991 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2992 # w32api 3.12 had it defined wrong
2993 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2994
2995 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2996 { check_header dev/bktr/ioctl_meteor.h &&
2997   check_header dev/bktr/ioctl_bt848.h; } ||
2998 { check_header machine/ioctl_meteor.h &&
2999   check_header machine/ioctl_bt848.h; } ||
3000 { check_header dev/video/meteor/ioctl_meteor.h &&
3001   check_header dev/video/bktr/ioctl_bt848.h; } ||
3002 check_header dev/ic/bt8xx.h
3003
3004 check_header sndio.h
3005 check_header sys/soundcard.h
3006 check_header soundcard.h
3007
3008 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3009
3010 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3011
3012 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3013
3014 enabled libcdio &&
3015     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3016
3017 enabled x11grab                         &&
3018 check_header X11/Xlib.h                 &&
3019 check_header X11/extensions/XShm.h      &&
3020 check_header X11/extensions/Xfixes.h    &&
3021 check_func XOpenDisplay -lX11           &&
3022 check_func XShmCreateImage -lX11 -lXext &&
3023 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3024
3025 # check for VDA header
3026 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3027     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3028 fi
3029
3030 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3031 check_cpp_condition \
3032     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3033     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3034       disable vdpau; }
3035 fi
3036
3037 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3038
3039 # add some useful compiler flags if supported
3040 check_cflags -Wdeclaration-after-statement
3041 check_cflags -Wall
3042 check_cflags -Wno-parentheses
3043 check_cflags -Wno-switch
3044 check_cflags -Wno-format-zero-length
3045 check_cflags -Wdisabled-optimization
3046 check_cflags -Wpointer-arith
3047 check_cflags -Wredundant-decls
3048 check_cflags -Wno-pointer-sign
3049 check_cflags -Wcast-qual
3050 check_cflags -Wwrite-strings
3051 check_cflags -Wtype-limits
3052 check_cflags -Wundef
3053 check_cflags -Wmissing-prototypes
3054 check_cflags -Wstrict-prototypes
3055 enabled extra_warnings && check_cflags -Winline
3056
3057 # add some linker flags
3058 check_ldflags -Wl,--warn-common
3059 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3060 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3061
3062 echo "X{};" > $TMPV
3063 if test_ldflags -Wl,--version-script,$TMPV; then
3064     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3065     check_cc <<EOF && enable symver_asm_label
3066 void ff_foo(void) __asm__ ("av_foo@VERSION");
3067 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3068 EOF
3069     check_cc <<EOF && enable symver_gnu_asm
3070 __asm__(".symver ff_foo,av_foo@VERSION");
3071 void ff_foo(void) {}
3072 EOF
3073 fi
3074
3075 if [ -n "$optflags" ]; then
3076     add_cflags $optflags
3077 elif enabled small; then
3078     add_cflags $size_cflags
3079 elif enabled optimizations; then
3080     add_cflags $speed_cflags
3081 else
3082     add_cflags $noopt_cflags
3083 fi
3084 check_cflags -fno-math-errno
3085 check_cflags -fno-signed-zeros
3086
3087 if enabled icc; then
3088     # Just warnings, no remarks
3089     check_cflags -w1
3090     # -wd: Disable following warnings
3091     # 144, 167, 556: -Wno-pointer-sign
3092     # 1292: attribute "foo" ignored
3093     # 10006: ignoring unknown option -fno-signed-zeros
3094     # 10148: ignoring unknown option -Wno-parentheses
3095     # 10156: ignoring option '-W'; no argument required
3096     check_cflags -wd144,167,556,1292,10006,10148,10156
3097     # 11030: Warning unknown option --as-needed
3098     # 10156: ignoring option '-export'; no argument required
3099     check_ldflags -wd10156,11030
3100     # Allow to compile with optimizations
3101     check_ldflags -march=$cpu
3102     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3103     enable ebp_available
3104     if enabled x86_32; then
3105         test ${icc_version%%.*} -ge 11 && \
3106             check_cflags -falign-stack=maintain-16-byte || \
3107             disable aligned_stack
3108     fi
3109 elif enabled ccc; then
3110     # disable some annoying warnings
3111     add_cflags -msg_disable cvtu32to64
3112     add_cflags -msg_disable embedcomment
3113     add_cflags -msg_disable needconstext
3114     add_cflags -msg_disable nomainieee
3115     add_cflags -msg_disable ptrmismatch1
3116     add_cflags -msg_disable unreachcode
3117 elif enabled gcc; then
3118     check_cflags -fno-tree-vectorize
3119     check_cflags -Werror=implicit-function-declaration
3120     check_cflags -Werror=missing-prototypes
3121     check_cflags -Werror=declaration-after-statement
3122 elif enabled llvm_gcc; then
3123     check_cflags -mllvm -stack-alignment=16
3124 elif enabled clang; then
3125     check_cflags -mllvm -stack-alignment=16
3126     check_cflags -Qunused-arguments
3127 elif enabled armcc; then
3128     # 2523: use of inline assembler is deprecated
3129     add_cflags -W${armcc_opt},--diag_suppress=2523
3130     add_cflags -W${armcc_opt},--diag_suppress=1207
3131     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3132     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3133     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3134     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3135 elif enabled tms470; then
3136     add_cflags -pds=824 -pds=837
3137 elif enabled pathscale; then
3138     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3139 fi
3140
3141 enabled_any $THREADS_LIST      && enable threads
3142
3143 check_deps $CONFIG_LIST       \
3144            $CONFIG_EXTRA      \
3145            $HAVE_LIST         \
3146            $ALL_COMPONENTS    \
3147            $ALL_TESTS         \
3148
3149 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3150
3151 ! enabled_any memalign posix_memalign malloc_aligned &&
3152     enabled_any $need_memalign && enable memalign_hack
3153
3154 echo "install prefix            $prefix"
3155 echo "source path               $source_path"
3156 echo "C compiler                $cc"
3157 echo "ARCH                      $arch ($cpu)"
3158 if test "$build_suffix" != ""; then
3159     echo "build suffix              $build_suffix"
3160 fi
3161 if test "$extra_version" != ""; then
3162     echo "version string suffix     $extra_version"
3163 fi
3164 echo "big-endian                ${bigendian-no}"
3165 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3166 if enabled x86; then
3167     echo "${yasmexe}                      ${yasm-no}"
3168     echo "MMX enabled               ${mmx-no}"
3169     echo "MMX2 enabled              ${mmx2-no}"
3170     echo "3DNow! enabled            ${amd3dnow-no}"
3171     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3172     echo "SSE enabled               ${sse-no}"
3173     echo "SSSE3 enabled             ${ssse3-no}"
3174     echo "AVX enabled               ${avx-no}"
3175     echo "CMOV enabled              ${cmov-no}"
3176     echo "CMOV is fast              ${fast_cmov-no}"
3177     echo "EBX available             ${ebx_available-no}"
3178     echo "EBP available             ${ebp_available-no}"
3179 fi
3180 if enabled arm; then
3181     echo "ARMv5TE enabled           ${armv5te-no}"
3182     echo "ARMv6 enabled             ${armv6-no}"
3183     echo "ARMv6T2 enabled           ${armv6t2-no}"
3184     echo "ARM VFP enabled           ${armvfp-no}"
3185     echo "IWMMXT enabled            ${iwmmxt-no}"
3186     echo "NEON enabled              ${neon-no}"
3187 fi
3188 if enabled mips; then
3189     echo "MMI enabled               ${mmi-no}"
3190 fi
3191 if enabled ppc; then
3192     echo "AltiVec enabled           ${altivec-no}"
3193     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3194     echo "dcbzl available           ${dcbzl-no}"
3195 fi
3196 if enabled sparc; then
3197     echo "VIS enabled               ${vis-no}"
3198 fi
3199 echo "debug symbols             ${debug-no}"
3200 echo "optimize for size         ${small-no}"
3201 echo "optimizations             ${optimizations-no}"
3202 echo "static                    ${static-no}"
3203 echo "shared                    ${shared-no}"
3204 echo "postprocessing support    ${postproc-no}"
3205 echo "new filter support        ${avfilter-no}"
3206 echo "network support           ${network-no}"
3207 echo "threading support         ${thread_type-no}"
3208 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3209 echo "SDL support               ${sdl-no}"
3210 echo "Sun medialib support      ${mlib-no}"
3211 echo "libdxva2 enabled          ${dxva2-no}"
3212 echo "libva enabled             ${vaapi-no}"
3213 echo "libvdpau enabled          ${vdpau-no}"
3214 echo "AVISynth enabled          ${avisynth-no}"
3215 echo "frei0r enabled            ${frei0r-no}"
3216 echo "gnutls enabled            ${gnutls-no}"
3217 echo "libcdio support           ${libcdio-no}"
3218 echo "libdc1394 support         ${libdc1394-no}"
3219 echo "libdirac enabled          ${libdirac-no}"
3220 echo "libfaac enabled           ${libfaac-no}"
3221 echo "libgsm enabled            ${libgsm-no}"
3222 echo "libmp3lame enabled        ${libmp3lame-no}"
3223 echo "libnut enabled            ${libnut-no}"
3224 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3225 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3226 echo "libopencv support         ${libopencv-no}"
3227 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3228 echo "libpulse enabled          ${libpulse-no}"
3229 echo "librtmp enabled           ${librtmp-no}"
3230 echo "libschroedinger enabled   ${libschroedinger-no}"
3231 echo "libspeex enabled          ${libspeex-no}"
3232 echo "libtheora enabled         ${libtheora-no}"
3233 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3234 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3235 echo "libvorbis enabled         ${libvorbis-no}"
3236 echo "libvpx enabled            ${libvpx-no}"
3237 echo "libx264 enabled           ${libx264-no}"
3238 echo "libxavs enabled           ${libxavs-no}"
3239 echo "libxvid enabled           ${libxvid-no}"
3240 echo "openssl enabled           ${openssl-no}"
3241 echo "zlib enabled              ${zlib-no}"
3242 echo "bzlib enabled             ${bzlib-no}"
3243 echo
3244
3245 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3246     echo "Enabled ${type}s:"
3247     eval list=\$$(toupper $type)_LIST
3248     print_enabled '_*' $list | sort | pr -r -3 -t
3249     echo
3250 done
3251
3252 license="LGPL version 2.1 or later"
3253 if enabled nonfree; then
3254     license="nonfree and unredistributable"
3255 elif enabled gplv3; then
3256     license="GPL version 3 or later"
3257 elif enabled lgplv3; then
3258     license="LGPL version 3 or later"
3259 elif enabled gpl; then
3260     license="GPL version 2 or later"
3261 fi
3262
3263 echo "License: $license"
3264
3265 echo "Creating config.mak and config.h..."
3266
3267 test -e Makefile || $ln_s "$source_path/Makefile" .
3268
3269 config_files="$TMPH config.mak"
3270
3271 cat > config.mak <<EOF
3272 # Automatically generated by configure - do not modify!
3273 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3274 prefix=$prefix
3275 LIBDIR=\$(DESTDIR)$libdir
3276 SHLIBDIR=\$(DESTDIR)$shlibdir
3277 INCDIR=\$(DESTDIR)$incdir
3278 BINDIR=\$(DESTDIR)$bindir
3279 DATADIR=\$(DESTDIR)$datadir
3280 MANDIR=\$(DESTDIR)$mandir
3281 SRC_PATH=$source_path
3282 CC_IDENT=$cc_ident
3283 ARCH=$arch
3284 CC=$cc
3285 AS=$as
3286 LD=$ld
3287 DEPCC=$dep_cc
3288 YASM=$yasmexe
3289 YASMDEP=$yasmexe
3290 AR=$ar
3291 RANLIB=$ranlib
3292 LN_S=$ln_s
3293 CPPFLAGS=$CPPFLAGS
3294 CFLAGS=$CFLAGS
3295 ASFLAGS=$ASFLAGS
3296 AS_O=$CC_O
3297 CC_O=$CC_O
3298 DLLTOOL=$dlltool
3299 LDFLAGS=$LDFLAGS
3300 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3301 SHFLAGS=$SHFLAGS
3302 YASMFLAGS=$YASMFLAGS
3303 BUILDSUF=$build_suffix
3304 FULLNAME=$FULLNAME
3305 LIBPREF=$LIBPREF
3306 LIBSUF=$LIBSUF
3307 LIBNAME=$LIBNAME
3308 SLIBPREF=$SLIBPREF
3309 SLIBSUF=$SLIBSUF
3310 EXESUF=$EXESUF
3311 EXTRA_VERSION=$extra_version
3312 DEPFLAGS=$DEPFLAGS
3313 CCDEP=$CCDEP
3314 ASDEP=$ASDEP
3315 CC_DEPFLAGS=$CC_DEPFLAGS
3316 AS_DEPFLAGS=$AS_DEPFLAGS
3317 HOSTCC=$host_cc
3318 HOSTCFLAGS=$host_cflags
3319 HOSTEXESUF=$HOSTEXESUF
3320 HOSTLDFLAGS=$host_ldflags
3321 HOSTLIBS=$host_libs
3322 TARGET_EXEC=$target_exec
3323 TARGET_PATH=$target_path
3324 SDL_LIBS=$sdl_libs
3325 SDL_CFLAGS=$sdl_cflags
3326 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3327 EXTRALIBS=$extralibs
3328 INSTALL=install
3329 LIBTARGET=${LIBTARGET}
3330 SLIBNAME=${SLIBNAME}
3331 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3332 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3333 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3334 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3335 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3336 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3337 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3338 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3339 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3340 EOF
3341
3342 get_version(){
3343     name=$1
3344     file=$source_path/$2
3345     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3346     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3347     lcname=$(tolower $name)
3348     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3349     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3350 }
3351
3352 get_version LIBAVCODEC  libavcodec/version.h
3353 get_version LIBAVDEVICE libavdevice/avdevice.h
3354 get_version LIBAVFILTER libavfilter/avfilter.h
3355 get_version LIBAVFORMAT libavformat/version.h
3356 get_version LIBAVUTIL   libavutil/avutil.h
3357 get_version LIBPOSTPROC libpostproc/postprocess.h
3358 get_version LIBSWSCALE  libswscale/swscale.h
3359
3360 cat > $TMPH <<EOF
3361 /* Automatically generated by configure - do not modify! */
3362 #ifndef LIBAV_CONFIG_H
3363 #define LIBAV_CONFIG_H
3364 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3365 #define LIBAV_LICENSE "$(c_escape $license)"
3366 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3367 #define CC_TYPE "$cc_type"
3368 #define CC_VERSION $cc_version
3369 #define restrict $_restrict
3370 #define EXTERN_PREFIX "${extern_prefix}"
3371 #define EXTERN_ASM ${extern_prefix}
3372 #define SLIBSUF "$SLIBSUF"
3373 EOF
3374
3375 test -n "$malloc_prefix" &&
3376     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3377
3378 if enabled small || disabled optimizations; then
3379     echo "#undef  av_always_inline"  >> $TMPH
3380     if enabled small; then
3381         echo "#define av_always_inline inline"  >> $TMPH
3382     else
3383         echo "#define av_always_inline av_unused"  >> $TMPH
3384     fi
3385 fi
3386
3387 if enabled yasm; then
3388     append config_files $TMPASM
3389     printf '' >$TMPASM
3390 fi
3391
3392 print_config ARCH_   "$config_files" $ARCH_LIST
3393 print_config HAVE_   "$config_files" $HAVE_LIST
3394 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3395                                      $CONFIG_EXTRA      \
3396                                      $ALL_COMPONENTS    \
3397
3398 cat >>config.mak <<EOF
3399 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3400 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3401 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3402 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3403 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3404 EOF
3405
3406 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3407
3408 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3409 cp_if_changed $TMPH config.h
3410 touch .config
3411
3412 enabled yasm && cp_if_changed $TMPASM config.asm
3413
3414 cat > $TMPH <<EOF
3415 /* Generated by ffconf */
3416 #ifndef AVUTIL_AVCONFIG_H
3417 #define AVUTIL_AVCONFIG_H
3418 EOF
3419
3420 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3421
3422 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3423
3424 cp_if_changed $TMPH libavutil/avconfig.h
3425
3426 test -n "$WARNINGS" && printf "\n$WARNINGS"
3427
3428 # build pkg-config files
3429
3430 pkgconfig_generate(){
3431 name=$1
3432 shortname=${name#lib}${build_suffix}
3433 comment=$2
3434 version=$3
3435 libs=$4
3436 requires=$5
3437 enabled ${name#lib} || return 0
3438 mkdir -p $name
3439 cat <<EOF > $name/$name.pc
3440 prefix=$prefix
3441 exec_prefix=\${prefix}
3442 libdir=$libdir
3443 includedir=$incdir
3444
3445 Name: $name
3446 Description: $comment
3447 Version: $version
3448 Requires: $(enabled shared || echo $requires)
3449 Requires.private: $(enabled shared && echo $requires)
3450 Conflicts:
3451 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3452 Libs.private: $(enabled shared && echo $libs)
3453 Cflags: -I\${includedir}
3454 EOF
3455 cat <<EOF > $name/$name-uninstalled.pc
3456 prefix=
3457 exec_prefix=
3458 libdir=\${pcfiledir}
3459 includedir=${source_path}
3460
3461 Name: $name
3462 Description: $comment
3463 Version: $version
3464 Requires: $requires
3465 Conflicts:
3466 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3467 Cflags: -I\${includedir}
3468 EOF
3469 }
3470
3471 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3472 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3473 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3474 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3475 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3476 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3477 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"