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