Remove libpostproc.
[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-avconv         disable avconv build
84   --disable-avplay         disable avplay build
85   --disable-avprobe        disable avprobe build
86   --disable-avserver       disable avserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-avfilter       disable video filter support [no]
92   --disable-pthreads       disable pthreads [auto]
93   --disable-w32threads     disable Win32 threads [auto]
94   --enable-x11grab         enable X11 grabbing [no]
95   --disable-network        disable network support [no]
96   --enable-gray            enable full grayscale support (slower color)
97   --disable-swscale-alpha  disable alpha channel support in swscale
98   --disable-fastdiv        disable table-based division
99   --enable-small           optimize for size instead of speed
100   --disable-aandct         disable AAN DCT code
101   --disable-dct            disable DCT code
102   --disable-fft            disable FFT code
103   --disable-golomb         disable Golomb code
104   --disable-huffman        disable Huffman code
105   --disable-lpc            disable LPC code
106   --disable-mdct           disable MDCT code
107   --disable-rdft           disable RDFT code
108   --enable-vaapi           enable VAAPI code
109   --enable-vda             enable VDA code
110   --enable-vdpau           enable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --disable-safe-bitstream-reader
115                            disable buffer boundary checking in bitreaders
116                            (faster, but may crash)
117   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
118   --disable-everything     disable all components listed below
119   --disable-encoder=NAME   disable encoder NAME
120   --enable-encoder=NAME    enable encoder NAME
121   --disable-encoders       disable all encoders
122   --disable-decoder=NAME   disable decoder NAME
123   --enable-decoder=NAME    enable decoder NAME
124   --disable-decoders       disable all decoders
125   --disable-hwaccel=NAME   disable hwaccel NAME
126   --enable-hwaccel=NAME    enable hwaccel NAME
127   --disable-hwaccels       disable all hwaccels
128   --disable-muxer=NAME     disable muxer NAME
129   --enable-muxer=NAME      enable muxer NAME
130   --disable-muxers         disable all muxers
131   --disable-demuxer=NAME   disable demuxer NAME
132   --enable-demuxer=NAME    enable demuxer NAME
133   --disable-demuxers       disable all demuxers
134   --enable-parser=NAME     enable parser NAME
135   --disable-parser=NAME    disable parser NAME
136   --disable-parsers        disable all parsers
137   --enable-bsf=NAME        enable bitstream filter NAME
138   --disable-bsf=NAME       disable bitstream filter NAME
139   --disable-bsfs           disable all bitstream filters
140   --enable-protocol=NAME   enable protocol NAME
141   --disable-protocol=NAME  disable protocol NAME
142   --disable-protocols      disable all protocols
143   --disable-indev=NAME     disable input device NAME
144   --disable-outdev=NAME    disable output device NAME
145   --disable-indevs         disable input devices
146   --disable-outdevs        disable output devices
147   --disable-devices        disable all devices
148   --enable-filter=NAME     enable filter NAME
149   --disable-filter=NAME    disable filter NAME
150   --disable-filters        disable all filters
151   --list-decoders          show all available decoders
152   --list-encoders          show all available encoders
153   --list-hwaccels          show all available hardware accelerators
154   --list-muxers            show all available muxers
155   --list-demuxers          show all available demuxers
156   --list-parsers           show all available parsers
157   --list-protocols         show all available protocols
158   --list-bsfs              show all available bitstream filters
159   --list-indevs            show all available input devices
160   --list-outdevs           show all available output devices
161   --list-filters           show all available filters
162
163 External library support:
164   --enable-avisynth        enable reading of AVISynth script files [no]
165   --enable-bzlib           enable bzlib [autodetect]
166   --enable-frei0r          enable frei0r video filtering
167   --enable-gnutls          enable gnutls [no]
168   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
169   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
170   --enable-libopencv       enable video filtering via libopencv [no]
171   --enable-libcdio         enable audio CD grabbing with libcdio
172   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
173                            and libraw1394 [no]
174   --enable-libdirac        enable Dirac support via libdirac [no]
175   --enable-libfaac         enable FAAC support via libfaac [no]
176   --enable-libfreetype     enable libfreetype [no]
177   --enable-libgsm          enable GSM support via libgsm [no]
178   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
179   --enable-libnut          enable NUT (de)muxing via libnut,
180                            native (de)muxer exists [no]
181   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
182   --enable-libpulse        enable Pulseaudio input via libpulse [no]
183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
185   --enable-libspeex        enable Speex support via libspeex [no]
186   --enable-libtheora       enable Theora encoding via libtheora [no]
187   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
188   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
189   --enable-libvorbis       enable Vorbis encoding via libvorbis,
190                            native implementation exists [no]
191   --enable-libvpx          enable VP8 support via libvpx [no]
192   --enable-libx264         enable H.264 encoding via x264 [no]
193   --enable-libxavs         enable AVS encoding via xavs [no]
194   --enable-libxvid         enable Xvid encoding via xvidcore,
195                            native MPEG-4/Xvid encoder exists [no]
196   --enable-openssl         enable openssl [no]
197   --enable-zlib            enable zlib [autodetect]
198
199 Advanced options (experts only):
200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
201   --enable-cross-compile   assume a cross-compiler is used
202   --sysroot=PATH           root of cross-build tree
203   --sysinclude=PATH        location of cross-build system headers
204   --target-os=OS           compiler targets OS [$target_os]
205   --target-exec=CMD        command to run executables on target
206   --target-path=DIR        path to view of build directory on target
207   --nm=NM                  use nm tool
208   --ar=AR                  use archive tool AR [$ar_default]
209   --as=AS                  use assembler AS [$as_default]
210   --cc=CC                  use C compiler CC [$cc_default]
211   --ld=LD                  use linker LD
212   --host-cc=HOSTCC         use host C compiler HOSTCC
213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
215   --host-libs=HLIBS        use libs HLIBS when linking for host
216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --build-suffix=SUFFIX    library name suffix []
221   --arch=ARCH              select architecture [$arch]
222   --cpu=CPU                select the minimum required CPU (affects
223                            instruction selection, may crash on older CPUs)
224   --disable-asm            disable all assembler optimizations
225   --disable-altivec        disable AltiVec optimizations
226   --disable-amd3dnow       disable 3DNow! optimizations
227   --disable-amd3dnowext    disable 3DNow! extended optimizations
228   --disable-mmx            disable MMX optimizations
229   --disable-mmx2           disable MMX2 optimizations
230   --disable-sse            disable SSE optimizations
231   --disable-ssse3          disable SSSE3 optimizations
232   --disable-avx            disable AVX optimizations
233   --disable-armv5te        disable armv5te optimizations
234   --disable-armv6          disable armv6 optimizations
235   --disable-armv6t2        disable armv6t2 optimizations
236   --disable-armvfp         disable ARM VFP optimizations
237   --disable-iwmmxt         disable iwmmxt optimizations
238   --disable-mmi            disable MMI optimizations
239   --disable-neon           disable NEON optimizations
240   --disable-vis            disable VIS optimizations
241   --disable-yasm           disable use of yasm assembler
242   --enable-pic             build position-independent code
243   --malloc-prefix=PFX      prefix malloc and related names with PFX
244   --enable-sram            allow use of on-chip SRAM
245   --disable-symver         disable symbol versioning
246   --optflags               override optimization-related compiler flags
247
248 Developer options (useful when working on Libav itself):
249   --disable-debug          disable debugging symbols
250   --enable-debug=LEVEL     set the debug level [$debuglevel]
251   --disable-optimizations  disable compiler optimizations
252   --enable-extra-warnings  enable more compiler warnings
253   --samples=PATH           location of test samples for FATE, if not set use
254                            \$FATE_SAMPLES at make invocation time.
255   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
256                            should be used only for debugging purposes)
257
258 NOTE: Object files are built at the place where configure is launched.
259 EOF
260   exit 0
261 }
262
263 quotes='""'
264
265 log(){
266     echo "$@" >> $logfile
267 }
268
269 log_file(){
270     log BEGIN $1
271     pr -n -t $1 >> $logfile
272     log END $1
273 }
274
275 echolog(){
276     log "$@"
277     echo "$@"
278 }
279
280 warn(){
281     log "WARNING: $*"
282     WARNINGS="${WARNINGS}WARNING: $*\n"
283 }
284
285 die(){
286     echolog "$@"
287     cat <<EOF
288
289 If you think configure made a mistake, make sure you are using the latest
290 version from Git.  If the latest version fails, report the problem to the
291 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
292 EOF
293     if disabled logging; then
294         cat <<EOF
295 Rerun configure with logging enabled (do not use --disable-logging), and
296 include the log this produces with your report.
297 EOF
298     else
299 cat <<EOF
300 Include the log file "$logfile" produced by configure as this will help
301 solving the problem.
302 EOF
303     fi
304     exit 1
305 }
306
307 # Avoid locale weirdness, besides we really just want to translate ASCII.
308 toupper(){
309     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
310 }
311
312 tolower(){
313     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
314 }
315
316 c_escape(){
317     echo "$*" | sed 's/["\\]/\\\0/g'
318 }
319
320 sh_quote(){
321     v=$(echo "$1" | sed "s/'/'\\\\''/g")
322     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
323     echo "$v"
324 }
325
326 cleanws(){
327     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
328 }
329
330 filter(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) echo $v ;; esac"
335     done
336 }
337
338 filter_out(){
339     pat=$1
340     shift
341     for v; do
342         eval "case $v in $pat) ;; *) echo $v ;; esac"
343     done
344 }
345
346 map(){
347     m=$1
348     shift
349     for v; do eval $m; done
350 }
351
352 set_all(){
353     value=$1
354     shift
355     for var in $*; do
356         eval $var=$value
357     done
358 }
359
360 set_weak(){
361     value=$1
362     shift
363     for var; do
364         eval : \${$var:=$value}
365     done
366 }
367
368 set_safe(){
369     var=$1
370     shift
371     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
372 }
373
374 get_safe(){
375     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
376 }
377
378 pushvar(){
379     for var in $*; do
380         eval level=\${${var}_level:=0}
381         eval ${var}_${level}="\$$var"
382         eval ${var}_level=$(($level+1))
383     done
384 }
385
386 popvar(){
387     for var in $*; do
388         eval level=\${${var}_level:-0}
389         test $level = 0 && continue
390         eval level=$(($level-1))
391         eval $var="\${${var}_${level}}"
392         eval ${var}_level=$level
393         eval unset ${var}_${level}
394     done
395 }
396
397 enable(){
398     set_all yes $*
399 }
400
401 disable(){
402     set_all no $*
403 }
404
405 enable_weak(){
406     set_weak yes $*
407 }
408
409 disable_weak(){
410     set_weak no $*
411 }
412
413 enable_safe(){
414     for var; do
415         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
416     done
417 }
418
419 disable_safe(){
420     for var; do
421         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
422     done
423 }
424
425 do_enable_deep(){
426     for var; do
427         enabled $var && continue
428         eval sel="\$${var}_select"
429         eval sgs="\$${var}_suggest"
430         pushvar var sgs
431         enable_deep $sel
432         popvar sgs
433         enable_deep_weak $sgs
434         popvar var
435     done
436 }
437
438 enable_deep(){
439     do_enable_deep $*
440     enable $*
441 }
442
443 enable_deep_weak(){
444     do_enable_deep $*
445     enable_weak $*
446 }
447
448 enabled(){
449     test "${1#!}" = "$1" && op== || op=!=
450     eval test "x\$${1#!}" $op "xyes"
451 }
452
453 disabled(){
454     test "${1#!}" = "$1" && op== || op=!=
455     eval test "x\$${1#!}" $op "xno"
456 }
457
458 enabled_all(){
459     for opt; do
460         enabled $opt || return 1
461     done
462 }
463
464 disabled_all(){
465     for opt; do
466         disabled $opt || return 1
467     done
468 }
469
470 enabled_any(){
471     for opt; do
472         enabled $opt && return 0
473     done
474 }
475
476 disabled_any(){
477     for opt; do
478         disabled $opt && return 0
479     done
480     return 1
481 }
482
483 set_default(){
484     for opt; do
485         eval : \${$opt:=\$${opt}_default}
486     done
487 }
488
489 is_in(){
490     value=$1
491     shift
492     for var in $*; do
493         [ $var = $value ] && return 0
494     done
495     return 1
496 }
497
498 check_deps(){
499     for cfg; do
500         cfg="${cfg#!}"
501         enabled ${cfg}_checking && die "Circular dependency for $cfg."
502         disabled ${cfg}_checking && continue
503         enable ${cfg}_checking
504
505         eval dep_all="\$${cfg}_deps"
506         eval dep_any="\$${cfg}_deps_any"
507         eval dep_sel="\$${cfg}_select"
508         eval dep_sgs="\$${cfg}_suggest"
509         eval dep_ifa="\$${cfg}_if"
510         eval dep_ifn="\$${cfg}_if_any"
511
512         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
513         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
514         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
515
516         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
517         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
518         enabled_all  $dep_all || disable $cfg
519         enabled_any  $dep_any || disable $cfg
520         disabled_any $dep_sel && disable $cfg
521
522         if enabled $cfg; then
523             eval dep_extralibs="\$${cfg}_extralibs"
524             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
525             enable_deep $dep_sel
526             enable_deep_weak $dep_sgs
527         fi
528
529         disable ${cfg}_checking
530     done
531 }
532
533 print_config_h(){
534     enabled $1 && v=1 || v=0
535     echo "#define $2 $v"
536 }
537
538 print_config_mak(){
539     enabled $1 && v= || v=!
540     echo "$v$2=yes"
541 }
542
543 print_config_asm(){
544     enabled $1 && v=1 || v=0
545     echo "%define $2 $v"
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 "
915
916 CONFIG_LIST="
917     $COMPONENT_LIST
918     $PROGRAM_LIST
919     aandct
920     ac3dsp
921     avcodec
922     avdevice
923     avfilter
924     avformat
925     avisynth
926     bzlib
927     dct
928     doc
929     dwt
930     dxva2
931     fastdiv
932     fft
933     frei0r
934     gnutls
935     golomb
936     gpl
937     gray
938     h264chroma
939     h264dsp
940     h264pred
941     hardcoded_tables
942     huffman
943     libcdio
944     libdc1394
945     libdirac
946     libfaac
947     libfreetype
948     libgsm
949     libmp3lame
950     libnut
951     libopencore_amrnb
952     libopencore_amrwb
953     libopencv
954     libopenjpeg
955     libpulse
956     librtmp
957     libschroedinger
958     libspeex
959     libtheora
960     libvo_aacenc
961     libvo_amrwbenc
962     libvorbis
963     libvpx
964     libx264
965     libxavs
966     libxvid
967     lpc
968     lsp
969     mdct
970     memalign_hack
971     mpegaudiodsp
972     network
973     nonfree
974     openssl
975     pic
976     rdft
977     rtpdec
978     runtime_cpudetect
979     safe_bitstream_reader
980     shared
981     sinewin
982     small
983     sram
984     static
985     swscale
986     swscale_alpha
987     thumb
988     vaapi
989     vda
990     vdpau
991     version3
992     xmm_clobber_test
993     x11grab
994     zlib
995 "
996
997 THREADS_LIST='
998     pthreads
999     w32threads
1000 '
1001
1002 ARCH_LIST='
1003     alpha
1004     arm
1005     avr32
1006     avr32_ap
1007     avr32_uc
1008     bfin
1009     ia64
1010     m68k
1011     mips
1012     mips64
1013     parisc
1014     ppc
1015     ppc64
1016     s390
1017     sh4
1018     sparc
1019     sparc64
1020     tomi
1021     x86
1022     x86_32
1023     x86_64
1024 '
1025
1026 ARCH_EXT_LIST='
1027     altivec
1028     amd3dnow
1029     amd3dnowext
1030     armv5te
1031     armv6
1032     armv6t2
1033     armvfp
1034     avx
1035     iwmmxt
1036     mmi
1037     mmx
1038     mmx2
1039     neon
1040     ppc4xx
1041     sse
1042     ssse3
1043     vfpv3
1044     vis
1045 '
1046
1047 HAVE_LIST_PUB='
1048     bigendian
1049     fast_unaligned
1050 '
1051
1052 HAVE_LIST="
1053     $ARCH_EXT_LIST
1054     $HAVE_LIST_PUB
1055     $THREADS_LIST
1056     aligned_stack
1057     alsa_asoundlib_h
1058     altivec_h
1059     arpa_inet_h
1060     asm_mod_y
1061     attribute_may_alias
1062     attribute_packed
1063     closesocket
1064     cmov
1065     dcbzl
1066     dev_bktr_ioctl_bt848_h
1067     dev_bktr_ioctl_meteor_h
1068     dev_ic_bt8xx_h
1069     dev_video_bktr_ioctl_bt848_h
1070     dev_video_meteor_ioctl_meteor_h
1071     dlfcn_h
1072     dlopen
1073     dos_paths
1074     ebp_available
1075     ebx_available
1076     exp2
1077     exp2f
1078     fast_64bit
1079     fast_clz
1080     fast_cmov
1081     fcntl
1082     fork
1083     getaddrinfo
1084     gethrtime
1085     GetProcessAffinityMask
1086     GetProcessMemoryInfo
1087     GetProcessTimes
1088     getrusage
1089     gnu_as
1090     ibm_asm
1091     inet_aton
1092     inline_asm
1093     isatty
1094     ldbrx
1095     libdc1394_1
1096     libdc1394_2
1097     llrint
1098     llrintf
1099     local_aligned_16
1100     local_aligned_8
1101     localtime_r
1102     log2
1103     log2f
1104     loongson
1105     lrint
1106     lrintf
1107     lzo1x_999_compress
1108     machine_ioctl_bt848_h
1109     machine_ioctl_meteor_h
1110     malloc_h
1111     MapViewOfFile
1112     memalign
1113     mkstemp
1114     mmap
1115     poll_h
1116     posix_memalign
1117     round
1118     roundf
1119     sched_getaffinity
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     struct_v4l2_frmivalenum_discrete
1137     symver
1138     symver_asm_label
1139     symver_gnu_asm
1140     sysconf
1141     sysctl
1142     sys_mman_h
1143     sys_param_h
1144     sys_resource_h
1145     sys_select_h
1146     sys_soundcard_h
1147     sys_videoio_h
1148     threads
1149     trunc
1150     truncf
1151     vfp_args
1152     VirtualAlloc
1153     winsock2_h
1154     xform_asm
1155     xmm_clobbers
1156     yasm
1157 "
1158
1159 # options emitted with CONFIG_ prefix but not available on command line
1160 CONFIG_EXTRA="
1161     avutil
1162     gplv3
1163     lgplv3
1164 "
1165
1166 CMDLINE_SELECT="
1167     $ARCH_EXT_LIST
1168     $CONFIG_LIST
1169     $THREADS_LIST
1170     asm
1171     cross_compile
1172     debug
1173     extra_warnings
1174     logging
1175     optimizations
1176     symver
1177     yasm
1178 "
1179
1180 PATHS_LIST='
1181     bindir
1182     datadir
1183     incdir
1184     libdir
1185     mandir
1186     prefix
1187     shlibdir
1188 '
1189
1190 CMDLINE_SET="
1191     $PATHS_LIST
1192     ar
1193     arch
1194     as
1195     build_suffix
1196     cc
1197     cpu
1198     cross_prefix
1199     dep_cc
1200     extra_version
1201     host_cc
1202     host_cflags
1203     host_ldflags
1204     host_libs
1205     host_os
1206     ld
1207     logfile
1208     malloc_prefix
1209     nm
1210     optflags
1211     pkg_config
1212     samples
1213     sysinclude
1214     sysroot
1215     target_exec
1216     target_os
1217     target_path
1218 "
1219
1220 CMDLINE_APPEND="
1221     extra_cflags
1222 "
1223
1224 # code dependency declarations
1225
1226 # architecture extensions
1227
1228 armv5te_deps="arm"
1229 armv6_deps="arm"
1230 armv6t2_deps="arm"
1231 armvfp_deps="arm"
1232 iwmmxt_deps="arm"
1233 neon_deps="arm"
1234 vfpv3_deps="armvfp"
1235
1236 mmi_deps="mips"
1237
1238 altivec_deps="ppc"
1239 ppc4xx_deps="ppc"
1240
1241 vis_deps="sparc"
1242
1243 x86_64_suggest="cmov fast_cmov"
1244 amd3dnow_deps="mmx"
1245 amd3dnowext_deps="amd3dnow"
1246 mmx_deps="x86"
1247 mmx2_deps="mmx"
1248 sse_deps="mmx"
1249 ssse3_deps="sse"
1250 avx_deps="ssse3"
1251
1252 aligned_stack_if_any="ppc x86"
1253 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1254 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1255 fast_unaligned_if_any="armv6 ppc x86"
1256
1257 inline_asm_deps="!tms470"
1258 need_memalign="altivec neon sse"
1259
1260 symver_if_any="symver_asm_label symver_gnu_asm"
1261
1262 # subsystems
1263 dct_select="rdft"
1264 mdct_select="fft"
1265 rdft_select="fft"
1266 mpegaudiodsp_select="dct"
1267
1268 # decoders / encoders / hardware accelerators
1269 aac_decoder_select="mdct sinewin"
1270 aac_encoder_select="mdct sinewin"
1271 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1272 ac3_decoder_select="mdct ac3dsp ac3_parser"
1273 ac3_encoder_select="mdct ac3dsp"
1274 ac3_fixed_encoder_select="mdct ac3dsp"
1275 alac_encoder_select="lpc"
1276 amrnb_decoder_select="lsp"
1277 amrwb_decoder_select="lsp"
1278 atrac1_decoder_select="mdct sinewin"
1279 atrac3_decoder_select="mdct"
1280 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1281 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1282 cavs_decoder_select="golomb"
1283 cook_decoder_select="mdct sinewin"
1284 cscd_decoder_suggest="zlib"
1285 dca_decoder_select="mdct"
1286 dnxhd_encoder_select="aandct"
1287 dxa_decoder_select="zlib"
1288 eac3_decoder_select="ac3_decoder"
1289 eac3_encoder_select="mdct ac3dsp"
1290 eamad_decoder_select="aandct"
1291 eatgq_decoder_select="aandct"
1292 eatqi_decoder_select="aandct"
1293 ffv1_decoder_select="golomb"
1294 flac_decoder_select="golomb"
1295 flac_encoder_select="golomb lpc"
1296 flashsv_decoder_select="zlib"
1297 flashsv_encoder_select="zlib"
1298 flashsv2_decoder_select="zlib"
1299 flv_decoder_select="h263_decoder"
1300 flv_encoder_select="h263_encoder"
1301 fraps_decoder_select="huffman"
1302 h261_encoder_select="aandct"
1303 h263_decoder_select="h263_parser"
1304 h263_encoder_select="aandct"
1305 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1306 h263i_decoder_select="h263_decoder"
1307 h263p_encoder_select="h263_encoder"
1308 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1309 h264_dxva2_hwaccel_deps="dxva2api_h"
1310 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1311 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1312 h264_vda_hwaccel_select="vda h264_decoder"
1313 h264_vdpau_decoder_select="vdpau h264_decoder"
1314 imc_decoder_select="fft mdct sinewin"
1315 jpegls_decoder_select="golomb"
1316 jpegls_encoder_select="golomb"
1317 ljpeg_encoder_select="aandct"
1318 loco_decoder_select="golomb"
1319 mjpeg_encoder_select="aandct"
1320 mlp_decoder_select="mlp_parser"
1321 mp1_decoder_select="mpegaudiodsp"
1322 mp1float_decoder_select="mpegaudiodsp"
1323 mp2_decoder_select="mpegaudiodsp"
1324 mp2float_decoder_select="mpegaudiodsp"
1325 mp3_decoder_select="mpegaudiodsp"
1326 mp3adu_decoder_select="mpegaudiodsp"
1327 mp3adufloat_decoder_select="mpegaudiodsp"
1328 mp3float_decoder_select="mpegaudiodsp"
1329 mp3on4_decoder_select="mpegaudiodsp"
1330 mp3on4float_decoder_select="mpegaudiodsp"
1331 mpc7_decoder_select="mpegaudiodsp"
1332 mpc8_decoder_select="mpegaudiodsp"
1333 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1334 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1335 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1336 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1337 mpeg1video_encoder_select="aandct"
1338 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1339 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1340 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1341 mpeg2video_encoder_select="aandct"
1342 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1343 mpeg4_encoder_select="h263_encoder"
1344 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1345 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1346 msmpeg4v1_decoder_select="h263_decoder"
1347 msmpeg4v1_encoder_select="h263_encoder"
1348 msmpeg4v2_decoder_select="h263_decoder"
1349 msmpeg4v2_encoder_select="h263_encoder"
1350 msmpeg4v3_decoder_select="h263_decoder"
1351 msmpeg4v3_encoder_select="h263_encoder"
1352 nellymoser_decoder_select="mdct sinewin"
1353 nellymoser_encoder_select="mdct sinewin"
1354 png_decoder_select="zlib"
1355 png_encoder_select="zlib"
1356 qcelp_decoder_select="lsp"
1357 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1358 ra_144_encoder_select="lpc"
1359 rv10_decoder_select="h263_decoder"
1360 rv10_encoder_select="h263_encoder"
1361 rv20_decoder_select="h263_decoder"
1362 rv20_encoder_select="h263_encoder"
1363 rv30_decoder_select="golomb h264chroma h264pred"
1364 rv40_decoder_select="golomb h264chroma h264pred"
1365 shorten_decoder_select="golomb"
1366 sipr_decoder_select="lsp"
1367 snow_decoder_select="dwt"
1368 snow_encoder_select="aandct dwt"
1369 svq1_encoder_select="aandct"
1370 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1371 svq3_decoder_suggest="zlib"
1372 theora_decoder_select="vp3_decoder"
1373 tiff_decoder_suggest="zlib"
1374 tiff_encoder_suggest="zlib"
1375 truehd_decoder_select="mlp_decoder"
1376 tscc_decoder_select="zlib"
1377 twinvq_decoder_select="mdct lsp sinewin"
1378 vc1_decoder_select="h263_decoder h264chroma"
1379 vc1_dxva2_hwaccel_deps="dxva2api_h"
1380 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1381 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1382 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1383 vc1image_decoder_select="vc1_decoder"
1384 vorbis_decoder_select="mdct"
1385 vorbis_encoder_select="mdct"
1386 vp6_decoder_select="huffman"
1387 vp6a_decoder_select="vp6_decoder"
1388 vp6f_decoder_select="vp6_decoder"
1389 vp8_decoder_select="h264pred"
1390 wmapro_decoder_select="mdct sinewin"
1391 wmav1_decoder_select="mdct sinewin"
1392 wmav1_encoder_select="mdct sinewin"
1393 wmav2_decoder_select="mdct sinewin"
1394 wmav2_encoder_select="mdct sinewin"
1395 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1396 wmv1_decoder_select="h263_decoder"
1397 wmv1_encoder_select="h263_encoder"
1398 wmv2_decoder_select="h263_decoder"
1399 wmv2_encoder_select="h263_encoder"
1400 wmv3_decoder_select="vc1_decoder"
1401 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1402 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1403 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1404 wmv3image_decoder_select="wmv3_decoder"
1405 zlib_decoder_select="zlib"
1406 zlib_encoder_select="zlib"
1407 zmbv_decoder_select="zlib"
1408 zmbv_encoder_select="zlib"
1409
1410 vaapi_deps="va_va_h"
1411 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1412 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1413
1414 # parsers
1415 h264_parser_select="golomb h264chroma h264dsp h264pred"
1416
1417 # external libraries
1418 libdirac_decoder_deps="libdirac !libschroedinger"
1419 libdirac_encoder_deps="libdirac"
1420 libfaac_encoder_deps="libfaac"
1421 libgsm_decoder_deps="libgsm"
1422 libgsm_encoder_deps="libgsm"
1423 libgsm_ms_decoder_deps="libgsm"
1424 libgsm_ms_encoder_deps="libgsm"
1425 libmp3lame_encoder_deps="libmp3lame"
1426 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1427 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1428 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1429 libopenjpeg_decoder_deps="libopenjpeg"
1430 libschroedinger_decoder_deps="libschroedinger"
1431 libschroedinger_encoder_deps="libschroedinger"
1432 libspeex_decoder_deps="libspeex"
1433 libspeex_encoder_deps="libspeex"
1434 libtheora_encoder_deps="libtheora"
1435 libvo_aacenc_encoder_deps="libvo_aacenc"
1436 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1437 libvorbis_encoder_deps="libvorbis"
1438 libvpx_decoder_deps="libvpx"
1439 libvpx_encoder_deps="libvpx"
1440 libx264_encoder_deps="libx264"
1441 libxavs_encoder_deps="libxavs"
1442 libxvid_encoder_deps="libxvid"
1443
1444 # demuxers / muxers
1445 ac3_demuxer_select="ac3_parser"
1446 asf_stream_muxer_select="asf_muxer"
1447 avisynth_demuxer_deps="avisynth"
1448 dirac_demuxer_select="dirac_parser"
1449 eac3_demuxer_select="ac3_parser"
1450 flac_demuxer_select="flac_parser"
1451 ipod_muxer_select="mov_muxer"
1452 libnut_demuxer_deps="libnut"
1453 libnut_muxer_deps="libnut"
1454 matroska_audio_muxer_select="matroska_muxer"
1455 matroska_demuxer_suggest="zlib bzlib"
1456 mov_demuxer_suggest="zlib"
1457 mp3_demuxer_select="mpegaudio_parser"
1458 mp4_muxer_select="mov_muxer"
1459 mpegtsraw_demuxer_select="mpegts_demuxer"
1460 mxf_d10_muxer_select="mxf_muxer"
1461 ogg_demuxer_select="golomb"
1462 psp_muxer_select="mov_muxer"
1463 rtp_demuxer_select="sdp_demuxer"
1464 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1465 rtsp_demuxer_select="http_protocol rtpdec"
1466 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1467 sap_demuxer_select="sdp_demuxer"
1468 sap_muxer_select="rtp_muxer rtp_protocol"
1469 sdp_demuxer_select="rtpdec"
1470 spdif_muxer_select="aac_parser"
1471 tg2_muxer_select="mov_muxer"
1472 tgp_muxer_select="mov_muxer"
1473 w64_demuxer_deps="wav_demuxer"
1474
1475 # indevs / outdevs
1476 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1477 alsa_outdev_deps="alsa_asoundlib_h"
1478 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1479 dv1394_indev_deps="dv1394 dv_demuxer"
1480 fbdev_indev_deps="linux_fb_h"
1481 jack_indev_deps="jack_jack_h"
1482 libcdio_indev_deps="libcdio"
1483 libdc1394_indev_deps="libdc1394"
1484 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1485 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1486 pulse_indev_deps="libpulse"
1487 sndio_indev_deps="sndio_h"
1488 sndio_outdev_deps="sndio_h"
1489 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1490 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1491 vfwcap_indev_extralibs="-lavicap32"
1492 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1493 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1494
1495 # protocols
1496 gopher_protocol_deps="network"
1497 httpproxy_protocol_deps="network"
1498 httpproxy_protocol_select="tcp_protocol"
1499 http_protocol_deps="network"
1500 http_protocol_select="tcp_protocol"
1501 https_protocol_select="tls_protocol"
1502 librtmp_protocol_deps="librtmp"
1503 librtmpe_protocol_deps="librtmp"
1504 librtmps_protocol_deps="librtmp"
1505 librtmpt_protocol_deps="librtmp"
1506 librtmpte_protocol_deps="librtmp"
1507 mmsh_protocol_select="http_protocol"
1508 mmst_protocol_deps="network"
1509 rtmp_protocol_deps="!librtmp_protocol"
1510 rtmp_protocol_select="tcp_protocol"
1511 rtp_protocol_select="udp_protocol"
1512 tcp_protocol_deps="network"
1513 tls_protocol_deps_any="openssl gnutls"
1514 tls_protocol_select="tcp_protocol"
1515 udp_protocol_deps="network"
1516
1517 # filters
1518 blackframe_filter_deps="gpl"
1519 boxblur_filter_deps="gpl"
1520 cropdetect_filter_deps="gpl"
1521 delogo_filter_deps="gpl"
1522 drawtext_filter_deps="libfreetype"
1523 frei0r_filter_deps="frei0r dlopen strtok_r"
1524 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1525 hqdn3d_filter_deps="gpl"
1526 ocv_filter_deps="libopencv"
1527 scale_filter_deps="swscale"
1528 yadif_filter_deps="gpl"
1529
1530 # libraries
1531 avdevice_deps="avcodec avformat"
1532 avformat_deps="avcodec"
1533
1534 # programs
1535 avconv_deps="avcodec avformat swscale"
1536 avplay_deps="avcodec avformat swscale sdl"
1537 avplay_select="rdft"
1538 avprobe_deps="avcodec avformat"
1539 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1540 avserver_extralibs='$ldl'
1541
1542 doc_deps="texi2html"
1543
1544 # tests
1545
1546 test_deps(){
1547     suf1=$1
1548     suf2=$2
1549     shift 2
1550     for v; do
1551         dep=${v%=*}
1552         tests=${v#*=}
1553         for name in ${tests}; do
1554             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1555         done
1556     done
1557 }
1558
1559 mxf_d10_test_deps="avfilter"
1560 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1561
1562 test_deps _encoder _decoder                                             \
1563     adpcm_ima_qt                                                        \
1564     adpcm_ima_wav                                                       \
1565     adpcm_ms                                                            \
1566     adpcm_swf                                                           \
1567     adpcm_yamaha=adpcm_yam                                              \
1568     alac                                                                \
1569     asv1                                                                \
1570     asv2                                                                \
1571     bmp                                                                 \
1572     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1573     dvvideo="dv dv_411 dv50"                                            \
1574     ffv1                                                                \
1575     flac                                                                \
1576     flashsv                                                             \
1577     flv                                                                 \
1578     adpcm_g726=g726                                                     \
1579     gif                                                                 \
1580     h261                                                                \
1581     h263="h263 h263p"                                                   \
1582     huffyuv                                                             \
1583     jpegls                                                              \
1584     mjpeg="jpg mjpeg ljpeg"                                             \
1585     mp2                                                                 \
1586     mpeg1video="mpeg mpeg1b"                                            \
1587     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1588     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1589     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1590     mpeg4="mpeg4thread error rc"                                        \
1591     msmpeg4v3=msmpeg4                                                   \
1592     msmpeg4v2                                                           \
1593     pbm=pbmpipe                                                         \
1594     pcx                                                                 \
1595     pgm="pgm pgmpipe"                                                   \
1596     png                                                                 \
1597     ppm="ppm ppmpipe"                                                   \
1598     rawvideo="rgb yuv"                                                  \
1599     roq                                                                 \
1600     rv10                                                                \
1601     rv20                                                                \
1602     sgi                                                                 \
1603     snow="snow snowll"                                                  \
1604     svq1                                                                \
1605     targa=tga                                                           \
1606     tiff                                                                \
1607     wmav1                                                               \
1608     wmav2                                                               \
1609     wmv1                                                                \
1610     wmv2                                                                \
1611
1612 test_deps _muxer _demuxer                                               \
1613     aiff                                                                \
1614     pcm_alaw=alaw                                                       \
1615     asf                                                                 \
1616     au                                                                  \
1617     avi                                                                 \
1618     dv=dv_fmt                                                           \
1619     ffm                                                                 \
1620     flv=flv_fmt                                                         \
1621     gxf                                                                 \
1622     matroska=mkv                                                        \
1623     mmf                                                                 \
1624     mov                                                                 \
1625     pcm_mulaw=mulaw                                                     \
1626     mxf="mxf mxf_d10"                                                   \
1627     nut                                                                 \
1628     ogg                                                                 \
1629     rawvideo=pixfmt                                                     \
1630     rm                                                                  \
1631     swf                                                                 \
1632     mpegts=ts                                                           \
1633     voc                                                                 \
1634     wav                                                                 \
1635     yuv4mpegpipe=yuv4mpeg                                               \
1636
1637 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1638 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1639
1640 # default parameters
1641
1642 logfile="config.log"
1643
1644 # installation paths
1645 prefix_default="/usr/local"
1646 bindir_default='${prefix}/bin'
1647 datadir_default='${prefix}/share/avconv'
1648 incdir_default='${prefix}/include'
1649 libdir_default='${prefix}/lib'
1650 mandir_default='${prefix}/share/man'
1651 shlibdir_default="$libdir_default"
1652
1653 # toolchain
1654 ar_default="ar"
1655 cc_default="gcc"
1656 cc_version=\"unknown\"
1657 host_cc_default="gcc"
1658 ln_s="ln -sf"
1659 nm_default="nm"
1660 objformat="elf"
1661 pkg_config_default=pkg-config
1662 ranlib="ranlib"
1663 yasmexe="yasm"
1664
1665 nm_opts='-g'
1666 nogas=":"
1667
1668 # machine
1669 arch_default=$(uname -m)
1670 cpu="generic"
1671
1672 # OS
1673 target_os_default=$(tolower $(uname -s))
1674 host_os=$target_os_default
1675
1676 # configurable options
1677 enable $PROGRAM_LIST
1678
1679 enable avcodec
1680 enable avdevice
1681 enable avfilter
1682 enable avformat
1683 enable avutil
1684 enable swscale
1685
1686 enable asm
1687 enable debug
1688 enable doc
1689 enable fastdiv
1690 enable network
1691 enable optimizations
1692 enable safe_bitstream_reader
1693 enable static
1694 enable swscale_alpha
1695
1696 # build settings
1697 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1698 AVSERVERLDFLAGS=-Wl,-E
1699 LIBPREF="lib"
1700 LIBSUF=".a"
1701 FULLNAME='$(NAME)$(BUILDSUF)'
1702 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1703 SLIBPREF="lib"
1704 SLIBSUF=".so"
1705 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1706 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1707 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1708 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1709 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1710 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1711
1712 AS_O='-o $@'
1713 CC_O='-o $@'
1714
1715 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1716 host_libs='-lm'
1717
1718 target_path='$(CURDIR)'
1719
1720 # since the object filename is not given with the -MM flag, the compiler
1721 # is only able to print the basename, and we must add the path ourselves
1722 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1723 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1724
1725 # find source path
1726 if test -f configure; then
1727     source_path=.
1728 else
1729     source_path=$(cd $(dirname "$0"); pwd)
1730     echo "$source_path" | grep -q '[[:blank:]]' &&
1731         die "Out of tree builds are impossible with whitespace in source path."
1732     test -e "$source_path/config.h" &&
1733         die "Out of tree builds are impossible with config.h in source dir."
1734 fi
1735
1736 for v in "$@"; do
1737     r=${v#*=}
1738     l=${v%"$r"}
1739     r=$(sh_quote "$r")
1740     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1741 done
1742
1743 find_things(){
1744     thing=$1
1745     pattern=$2
1746     file=$source_path/$3
1747     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1748 }
1749
1750 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1751 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1752 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1753 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1754 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1755 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1756 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1757 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1758 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1759 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1760 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1761
1762 ALL_COMPONENTS="
1763     $BSF_LIST
1764     $DECODER_LIST
1765     $DEMUXER_LIST
1766     $ENCODER_LIST
1767     $FILTER_LIST
1768     $HWACCEL_LIST
1769     $INDEV_LIST
1770     $MUXER_LIST
1771     $OUTDEV_LIST
1772     $PARSER_LIST
1773     $PROTOCOL_LIST
1774 "
1775
1776 find_tests(){
1777     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1778 }
1779
1780 ACODEC_TESTS=$(find_tests acodec)
1781 VCODEC_TESTS=$(find_tests vsynth1)
1782 LAVF_TESTS=$(find_tests lavf)
1783 LAVFI_TESTS=$(find_tests lavfi)
1784 SEEK_TESTS=$(find_tests seek seek_)
1785
1786 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1787
1788 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1789
1790 for n in $COMPONENT_LIST; do
1791     v=$(toupper ${n%s})_LIST
1792     eval enable \$$v
1793     eval ${n}_if_any="\$$v"
1794 done
1795
1796 enable $ARCH_EXT_LIST $ALL_TESTS
1797
1798 die_unknown(){
1799     echo "Unknown option \"$1\"."
1800     echo "See $0 --help for available options."
1801     exit 1
1802 }
1803
1804 show_list() {
1805     suffix=_$1
1806     shift
1807     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1808     exit 0
1809 }
1810
1811 for opt do
1812     optval="${opt#*=}"
1813     case "$opt" in
1814     --extra-ldflags=*) add_ldflags $optval
1815     ;;
1816     --extra-libs=*) add_extralibs $optval
1817     ;;
1818     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1819     ;;
1820     --enable-debug=*) debuglevel="$optval"
1821     ;;
1822     --disable-everything)
1823     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1824     ;;
1825     --enable-*=*|--disable-*=*)
1826     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1827     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1828     eval list=\$$(toupper $thing)_LIST
1829     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1830     $action $(filter "$name" $list)
1831     ;;
1832     --enable-?*|--disable-?*)
1833     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1834     if is_in $option $COMPONENT_LIST; then
1835         test $action = disable && action=unset
1836         eval $action \$$(toupper ${option%s})_LIST
1837     elif is_in $option $CMDLINE_SELECT; then
1838         $action $option
1839     else
1840         die_unknown $opt
1841     fi
1842     ;;
1843     --list-*)
1844         NAME="${opt#--list-}"
1845         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1846         NAME=${NAME%s}
1847         eval show_list $NAME \$$(toupper $NAME)_LIST
1848     ;;
1849     --help|-h) show_help
1850     ;;
1851     *)
1852     optname="${opt%%=*}"
1853     optname="${optname#--}"
1854     optname=$(echo "$optname" | sed 's/-/_/g')
1855     if is_in $optname $CMDLINE_SET; then
1856         eval $optname='$optval'
1857     elif is_in $optname $CMDLINE_APPEND; then
1858         append $optname "$optval"
1859     else
1860          die_unknown $opt
1861     fi
1862     ;;
1863     esac
1864 done
1865
1866 disabled logging && logfile=/dev/null
1867
1868 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1869 set >> $logfile
1870
1871 test -n "$cross_prefix" && enable cross_compile
1872
1873 if enabled cross_compile; then
1874     test -n "$arch" && test -n "$target_os" ||
1875         die "Must specify target arch and OS when cross-compiling"
1876 fi
1877
1878 set_default arch target_os
1879
1880 ar_default="${cross_prefix}${ar_default}"
1881 cc_default="${cross_prefix}${cc_default}"
1882 nm_default="${cross_prefix}${nm_default}"
1883 pkg_config_default="${cross_prefix}${pkg_config_default}"
1884 ranlib="${cross_prefix}${ranlib}"
1885
1886 sysinclude_default="${sysroot}/usr/include"
1887
1888 set_default cc nm pkg_config sysinclude
1889 enabled cross_compile || host_cc_default=$cc
1890 set_default host_cc
1891
1892 if ! $pkg_config --version >/dev/null 2>&1; then
1893     warn "$pkg_config not found, library detection may fail."
1894     pkg_config=false
1895 fi
1896
1897 exesuf() {
1898     case $1 in
1899         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1900     esac
1901 }
1902
1903 EXESUF=$(exesuf $target_os)
1904 HOSTEXESUF=$(exesuf $host_os)
1905
1906 # set temporary file name
1907 : ${TMPDIR:=$TEMPDIR}
1908 : ${TMPDIR:=$TMP}
1909 : ${TMPDIR:=/tmp}
1910
1911 if ! check_cmd mktemp -u XXXXXX; then
1912     # simple replacement for missing mktemp
1913     # NOT SAFE FOR GENERAL USE
1914     mktemp(){
1915         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1916     }
1917 fi
1918
1919 tmpfile(){
1920     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1921         (set -C; exec > $tmp) 2>/dev/null ||
1922         die "Unable to create temporary file in $TMPDIR."
1923     append TMPFILES $tmp
1924     eval $1=$tmp
1925 }
1926
1927 trap 'rm -f -- $TMPFILES' EXIT
1928
1929 tmpfile TMPASM .asm
1930 tmpfile TMPC   .c
1931 tmpfile TMPE   $EXESUF
1932 tmpfile TMPH   .h
1933 tmpfile TMPO   .o
1934 tmpfile TMPS   .S
1935 tmpfile TMPSH  .sh
1936 tmpfile TMPV   .ver
1937
1938 unset -f mktemp
1939
1940 chmod +x $TMPE
1941
1942 # make sure we can execute files in $TMPDIR
1943 cat > $TMPSH 2>> $logfile <<EOF
1944 #! /bin/sh
1945 EOF
1946 chmod +x $TMPSH >> $logfile 2>&1
1947 if ! $TMPSH >> $logfile 2>&1; then
1948     cat <<EOF
1949 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1950 variable to another directory and make sure that it is not mounted noexec.
1951 EOF
1952     die "Sanity test failed."
1953 fi
1954
1955 filter_asflags=echo
1956 filter_cflags=echo
1957 filter_cppflags=echo
1958
1959 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1960     cc_type=llvm_gcc
1961     cc_version=__VERSION__
1962     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1963     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1964     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1965     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1966     speed_cflags='-O3'
1967     size_cflags='-Os'
1968 elif $cc -v 2>&1 | grep -qi ^gcc; then
1969     cc_type=gcc
1970     cc_version=__VERSION__
1971     gcc_version=$($cc --version | head -n1)
1972     gcc_basever=$($cc -dumpversion)
1973     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1974     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1975     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1976     if ! $cc -dumpversion | grep -q '^2\.'; then
1977         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1978         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1979     fi
1980     speed_cflags='-O3'
1981     size_cflags='-Os'
1982 elif $cc --version 2>/dev/null | grep -q Intel; then
1983     cc_type=icc
1984     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1985     cc_ident=$($cc --version | head -n1)
1986     icc_version=$($cc -dumpversion)
1987     CC_DEPFLAGS='-MMD'
1988     AS_DEPFLAGS='-MMD'
1989     speed_cflags='-O3'
1990     size_cflags='-Os'
1991     noopt_cflags='-O1'
1992 elif $cc -v 2>&1 | grep -q xlc; then
1993     cc_type=xlc
1994     cc_version="AV_STRINGIFY(__IBMC__)"
1995     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1996     speed_cflags='-O5'
1997     size_cflags='-O5 -qcompact'
1998 elif $cc -V 2>/dev/null | grep -q Compaq; then
1999     cc_type=ccc
2000     cc_version="AV_STRINGIFY(__DECC_VER)"
2001     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2002     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2003     debuglevel=3
2004     add_ldflags -Wl,-z,now # calls to libots crash without this
2005     speed_cflags='-fast'
2006     size_cflags='-O1'
2007 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2008     test -d "$sysroot" || die "No valid sysroot specified."
2009     cc_type=armcc
2010     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2011     cc_ident=$($cc --vsn | head -n1)
2012     armcc_conf="$PWD/armcc.conf"
2013     $cc --arm_linux_configure                 \
2014         --arm_linux_config_file="$armcc_conf" \
2015         --configure_sysroot="$sysroot"        \
2016         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2017         die "Error creating armcc configuration file."
2018     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2019     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2020     as_default="${cross_prefix}gcc"
2021     CC_DEPFLAGS='-MMD'
2022     AS_DEPFLAGS='-MMD'
2023     speed_cflags='-O3'
2024     size_cflags='-Os'
2025     filter_asflags="filter_out -W${armcc_opt}*"
2026 elif $cc -version 2>/dev/null | grep -q TMS470; then
2027     cc_type=tms470
2028     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2029     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2030     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2031     CC_O='-fr=$(@D)'
2032     as_default="${cross_prefix}gcc"
2033     ld_default="${cross_prefix}gcc"
2034     TMPO=$(basename $TMPC .c).o
2035     append TMPFILES $TMPO
2036     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2037     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2038     AS_DEPFLAGS='-MMD'
2039     speed_cflags='-O3 -mf=5'
2040     size_cflags='-O3 -mf=2'
2041     filter_cflags=tms470_flags
2042     tms470_flags(){
2043         for flag; do
2044             case $flag in
2045                 -march=*|-mcpu=*)
2046                     case "${flag#*=}" in
2047                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2048                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2049                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2050                         armv6*|arm11*)          echo -mv=6   ;;
2051                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2052                                                 echo -mv=5e  ;;
2053                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2054                     esac
2055                     ;;
2056                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2057                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2058                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2059                 -msoft-float)   echo --float_support=vfplib       ;;
2060                 -O[0-3]|-mf=*)  echo $flag                        ;;
2061                 -g)             echo -g -mn                       ;;
2062                 -pds=*)         echo $flag                        ;;
2063             esac
2064         done
2065     }
2066 elif $cc -v 2>&1 | grep -q clang; then
2067     cc_type=clang
2068     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2069         cc_version=__clang_version__ || cc_version=__VERSION__
2070     cc_ident=$($cc --version | head -n1)
2071     CC_DEPFLAGS='-MMD'
2072     AS_DEPFLAGS='-MMD'
2073     speed_cflags='-O3'
2074     size_cflags='-Os'
2075 elif $cc -V 2>&1 | grep -q Sun; then
2076     cc_type=suncc
2077     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2078     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2079     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2080     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2081     add_ldflags -xc99
2082     speed_cflags='-O5'
2083     size_cflags='-O5 -xspace'
2084     filter_cflags=suncc_flags
2085     suncc_flags(){
2086         for flag; do
2087             case $flag in
2088                 -march=*|-mcpu=*)
2089                     case "${flag#*=}" in
2090                         native)                   echo -xtarget=native       ;;
2091                         v9|niagara)               echo -xarch=sparc          ;;
2092                         ultrasparc)               echo -xarch=sparcvis       ;;
2093                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2094                         i586|pentium)             echo -xchip=pentium        ;;
2095                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2096                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2097                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2098                         pentium4*)          echo -xtarget=pentium4           ;;
2099                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2100                         *-sse3)             echo -xarch=sse3                 ;;
2101                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2102                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2103                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2104                         k8|opteron|athlon64|athlon-fx)
2105                                                   echo -xarch=sse2a          ;;
2106                         athlon*)                  echo -xarch=pentium_proa   ;;
2107                     esac
2108                     ;;
2109                 -std=c99)             echo -xc99              ;;
2110                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2111                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2112                 -W*,*)                echo $flag              ;;
2113                 -f*-*|-W*)                                    ;;
2114                 *)                    echo $flag              ;;
2115             esac
2116         done
2117     }
2118 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2119     cc_type=pathscale
2120     cc_version=__PATHSCALE__
2121     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2122     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2123     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2124     speed_cflags='-O2'
2125     size_cflags='-Os'
2126     filter_cflags='filter_out -Wdisabled-optimization'
2127 elif $cc -v 2>&1 | grep -q Open64; then
2128     cc_type=open64
2129     cc_version=__OPEN64__
2130     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2131     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2132     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2133     speed_cflags='-O2'
2134     size_cflags='-Os'
2135     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2136 fi
2137
2138 test -n "$cc_type" && enable $cc_type ||
2139     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2140
2141 : ${as_default:=$cc}
2142 : ${dep_cc_default:=$cc}
2143 : ${ld_default:=$cc}
2144 set_default ar as dep_cc ld
2145
2146 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2147 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2148
2149 add_cflags $extra_cflags
2150 add_asflags $extra_cflags
2151
2152 if test -n "$sysroot"; then
2153     case "$cc_type" in
2154         gcc|llvm_gcc|clang)
2155             add_cppflags --sysroot="$sysroot"
2156             add_ldflags --sysroot="$sysroot"
2157         ;;
2158         tms470)
2159             add_cppflags -I"$sysinclude"
2160             add_ldflags  --sysroot="$sysroot"
2161         ;;
2162     esac
2163 fi
2164
2165 if test "$cpu" = host; then
2166     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2167
2168     case "$cc_type" in
2169         gcc|llvm_gcc)
2170             check_native(){
2171                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2172                 sed -n "/cc1.*$1=/{
2173                             s/.*$1=\\([^ ]*\\).*/\\1/
2174                             p
2175                             q
2176                         }" $TMPE
2177             }
2178             cpu=$(check_native -march || check_native -mcpu)
2179         ;;
2180     esac
2181
2182     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2183 fi
2184
2185 # Deal with common $arch aliases
2186 case "$arch" in
2187     arm*)
2188         arch="arm"
2189     ;;
2190     mips|mipsel|IP*)
2191         arch="mips"
2192     ;;
2193     mips64*)
2194         arch="mips"
2195         subarch="mips64"
2196     ;;
2197     parisc|hppa)
2198         arch="parisc"
2199     ;;
2200     parisc64|hppa64)
2201         arch="parisc"
2202         subarch="parisc64"
2203     ;;
2204     "Power Macintosh"|ppc|powerpc)
2205         arch="ppc"
2206     ;;
2207     ppc64|powerpc64)
2208         arch="ppc"
2209         subarch="ppc64"
2210     ;;
2211     s390|s390x)
2212         arch="s390"
2213     ;;
2214     sh4|sh)
2215         arch="sh4"
2216     ;;
2217     sun4u|sparc64)
2218         arch="sparc"
2219         subarch="sparc64"
2220     ;;
2221     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2222         arch="x86"
2223     ;;
2224 esac
2225
2226 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2227 enable $arch
2228
2229 # Add processor-specific flags
2230 if test "$cpu" = generic; then
2231     : do nothing
2232 elif enabled ppc; then
2233
2234     case $(tolower $cpu) in
2235         601|ppc601|powerpc601)
2236             cpuflags="-mcpu=601"
2237             disable altivec
2238         ;;
2239         603*|ppc603*|powerpc603*)
2240             cpuflags="-mcpu=603"
2241             disable altivec
2242         ;;
2243         604*|ppc604*|powerpc604*)
2244             cpuflags="-mcpu=604"
2245             disable altivec
2246         ;;
2247         g3|75*|ppc75*|powerpc75*)
2248             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2249             disable altivec
2250         ;;
2251         g4|745*|ppc745*|powerpc745*)
2252             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2253         ;;
2254         74*|ppc74*|powerpc74*)
2255             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2256         ;;
2257         g5|970|ppc970|powerpc970|power4*)
2258             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2259         ;;
2260         cell)
2261             cpuflags="-mcpu=cell"
2262             enable ldbrx
2263         ;;
2264         e500v2)
2265             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2266             disable altivec
2267         ;;
2268         e500)
2269             cpuflags="-mcpu=8540 -mhard-float"
2270             disable altivec
2271         ;;
2272     esac
2273
2274 elif enabled x86; then
2275
2276     case $cpu in
2277         i[345]86|pentium)
2278             cpuflags="-march=$cpu"
2279             disable mmx
2280         ;;
2281         # targets that do NOT support conditional mov (cmov)
2282         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2283             cpuflags="-march=$cpu"
2284             disable cmov
2285         ;;
2286         # targets that do support conditional mov (cmov)
2287         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2288             cpuflags="-march=$cpu"
2289             enable cmov
2290             enable fast_cmov
2291         ;;
2292         # targets that do support conditional mov but on which it's slow
2293         pentium4|pentium4m|prescott|nocona)
2294             cpuflags="-march=$cpu"
2295             enable cmov
2296             disable fast_cmov
2297         ;;
2298     esac
2299
2300 elif enabled sparc; then
2301
2302     case $cpu in
2303         niagara)
2304             cpuflags="-mcpu=$cpu"
2305             disable vis
2306         ;;
2307         sparc64)
2308             cpuflags="-mcpu=v9"
2309         ;;
2310     esac
2311
2312 elif enabled arm; then
2313
2314     case $cpu in
2315         armv*)
2316             cpuflags="-march=$cpu"
2317             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2318         ;;
2319         *)
2320             cpuflags="-mcpu=$cpu"
2321             case $cpu in
2322                 cortex-a*)                               subarch=armv7a  ;;
2323                 cortex-r*)                               subarch=armv7r  ;;
2324                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2325                 arm11*)                                  subarch=armv6   ;;
2326                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2327                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2328             esac
2329         ;;
2330     esac
2331
2332 elif enabled alpha; then
2333
2334     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2335
2336 elif enabled bfin; then
2337
2338     cpuflags="-mcpu=$cpu"
2339
2340 elif enabled mips; then
2341
2342     cpuflags="-march=$cpu"
2343
2344 elif enabled avr32; then
2345
2346     case $cpu in
2347         ap7[02]0[0-2])
2348             subarch="avr32_ap"
2349             cpuflags="-mpart=$cpu"
2350         ;;
2351         ap)
2352             subarch="avr32_ap"
2353             cpuflags="-march=$cpu"
2354         ;;
2355         uc3[ab]*)
2356             subarch="avr32_uc"
2357             cpuflags="-mcpu=$cpu"
2358         ;;
2359         uc)
2360             subarch="avr32_uc"
2361             cpuflags="-march=$cpu"
2362         ;;
2363     esac
2364
2365 fi
2366
2367 add_cflags $cpuflags
2368 add_asflags $cpuflags
2369
2370 # compiler sanity check
2371 check_exec <<EOF
2372 int main(void){ return 0; }
2373 EOF
2374 if test "$?" != 0; then
2375     echo "$cc is unable to create an executable file."
2376     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2377         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2378         echo "Only do this if you know what cross compiling means."
2379     fi
2380     die "C compiler test failed."
2381 fi
2382
2383 add_cppflags -D_ISOC99_SOURCE
2384 check_cflags -std=c99
2385 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2386 #include <stdlib.h>
2387 EOF
2388 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2389 #include <stdlib.h>
2390 EOF
2391
2392 check_host_cflags -std=c99
2393 check_host_cflags -Wall
2394
2395 case "$arch" in
2396     alpha|ia64|mips|parisc|sparc)
2397         spic=$shared
2398     ;;
2399     x86)
2400         subarch="x86_32"
2401         check_cc <<EOF && subarch="x86_64"
2402         int test[(int)sizeof(char*) - 7];
2403 EOF
2404         if test "$subarch" = "x86_64"; then
2405             spic=$shared
2406         fi
2407     ;;
2408 esac
2409
2410 enable $subarch
2411 enabled spic && enable pic
2412
2413 # OS specific
2414 case $target_os in
2415     haiku)
2416         prefix_default="/boot/common"
2417         network_extralibs="-lnetwork"
2418         host_libs=
2419         ;;
2420     sunos)
2421         AVSERVERLDFLAGS=""
2422         SHFLAGS='-shared -Wl,-h,$$(@F)'
2423         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2424         network_extralibs="-lsocket -lnsl"
2425         add_cppflags -D__EXTENSIONS__
2426         # When using suncc to build, the Solaris linker will mark
2427         # an executable with each instruction set encountered by
2428         # the Solaris assembler.  As our libraries contain their own
2429         # guards for processor-specific code, instead suppress
2430         # generation of the HWCAPS ELF section on Solaris x86 only.
2431         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2432         nm_opts='-P -g'
2433         ;;
2434     netbsd)
2435         disable symver
2436         oss_indev_extralibs="-lossaudio"
2437         oss_outdev_extralibs="-lossaudio"
2438         ;;
2439     openbsd)
2440         enable malloc_aligned
2441         # On OpenBSD 4.5. the compiler does not use PIC unless
2442         # explicitly using -fPIC. Libav builds fine without PIC,
2443         # however the generated executable will not do anything
2444         # (simply quits with exit-code 1, no crash, no output).
2445         # Thus explicitly enable PIC here.
2446         enable pic
2447         disable symver
2448         SHFLAGS='-shared'
2449         oss_indev_extralibs="-lossaudio"
2450         oss_outdev_extralibs="-lossaudio"
2451         ;;
2452     dragonfly)
2453         enable malloc_aligned
2454         disable symver
2455         ;;
2456     freebsd)
2457         enable malloc_aligned
2458         ;;
2459     bsd/os)
2460         add_extralibs -lpoll -lgnugetopt
2461         ;;
2462     darwin)
2463         enable malloc_aligned
2464         gas="gas-preprocessor.pl $cc"
2465         enabled ppc && add_asflags -force_cpusubtype_ALL
2466         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2467         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2468         add_ldflags -Wl,-dynamic,-search_paths_first
2469         SLIBSUF=".dylib"
2470         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2471         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2472         AVSERVERLDFLAGS=-Wl,-bind_at_load
2473         objformat="macho"
2474         enabled x86_64 && objformat="macho64"
2475         enabled_any pic shared ||
2476             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2477         ;;
2478     mingw32*)
2479         if test $target_os = "mingw32ce"; then
2480             disable network
2481         else
2482             target_os=mingw32
2483         fi
2484         LIBTARGET=i386
2485         if enabled x86_64; then
2486             enable malloc_aligned
2487             LIBTARGET="i386:x86-64"
2488         elif enabled arm; then
2489             LIBTARGET=arm-wince
2490         fi
2491         shlibdir_default="$bindir_default"
2492         SLIBPREF=""
2493         SLIBSUF=".dll"
2494         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2495         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2496         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2497         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2498         SLIB_INSTALL_LINKS=
2499         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2500         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2501         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2502         objformat="win32"
2503         dlltool="${cross_prefix}dlltool"
2504         enable dos_paths
2505         check_cflags -fno-common
2506         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2507                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2508                 die "ERROR: MinGW runtime version must be >= 3.15."
2509         add_cppflags -U__STRICT_ANSI__
2510         ;;
2511     cygwin*)
2512         target_os=cygwin
2513         shlibdir_default="$bindir_default"
2514         SLIBPREF="cyg"
2515         SLIBSUF=".dll"
2516         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2517         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2518         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2519         objformat="win32"
2520         enable dos_paths
2521         check_cflags -fno-common
2522         add_cppflags -U__STRICT_ANSI__
2523         ;;
2524     *-dos|freedos|opendos)
2525         network_extralibs="-lsocket"
2526         objformat="coff"
2527         enable dos_paths
2528         add_cppflags -U__STRICT_ANSI__
2529         ;;
2530     linux)
2531         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2532         enable dv1394
2533         ;;
2534     irix*)
2535         target_os=irix
2536         ranlib="echo ignoring ranlib"
2537         ;;
2538     os/2*)
2539         ln_s="cp -f"
2540         objformat="aout"
2541         add_cppflags -D_GNU_SOURCE
2542         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2543         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2544         AVSERVERLDFLAGS=""
2545         LIBSUF="_s.a"
2546         SLIBPREF=""
2547         SLIBSUF=".dll"
2548         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2549         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2550         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2551           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2552           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2553           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2554           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2555           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2556         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2557           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2558         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2559         enable dos_paths
2560         ;;
2561     gnu/kfreebsd)
2562         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2563         ;;
2564     gnu)
2565         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2566         ;;
2567     qnx)
2568         add_cppflags -D_QNX_SOURCE
2569         network_extralibs="-lsocket"
2570         ;;
2571     symbian)
2572         SLIBSUF=".dll"
2573         enable dos_paths
2574         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2575         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2576         add_ldflags -Wl,--target1-abs,--no-undefined \
2577                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2578                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2579         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2580                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2581                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2582         ;;
2583     none)
2584         ;;
2585     *)
2586         die "Unknown OS '$target_os'."
2587         ;;
2588 esac
2589
2590 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2591
2592 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2593
2594 set_default $PATHS_LIST
2595
2596 # we need to build at least one lib type
2597 if ! enabled_any static shared; then
2598     cat <<EOF
2599 At least one library type must be built.
2600 Specify --enable-static to build the static libraries or --enable-shared to
2601 build the shared libraries as well. To only build the shared libraries specify
2602 --disable-static in addition to --enable-shared.
2603 EOF
2604     exit 1;
2605 fi
2606
2607 die_license_disabled() {
2608     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2609 }
2610
2611 die_license_disabled gpl libcdio
2612 die_license_disabled gpl libx264
2613 die_license_disabled gpl libxavs
2614 die_license_disabled gpl libxvid
2615 die_license_disabled gpl x11grab
2616
2617 die_license_disabled nonfree libfaac
2618 die_license_disabled nonfree openssl
2619
2620 die_license_disabled version3 libopencore_amrnb
2621 die_license_disabled version3 libopencore_amrwb
2622 die_license_disabled version3 libvo_aacenc
2623 die_license_disabled version3 libvo_amrwbenc
2624
2625 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2626
2627 disabled optimizations || check_cflags -fomit-frame-pointer
2628
2629 enable_pic() {
2630     enable pic
2631     add_cppflags -DPIC
2632     add_cflags   -fPIC
2633     add_asflags  -fPIC
2634 }
2635
2636 enabled pic && enable_pic
2637
2638 check_cc <<EOF || die "Symbol mangling check failed."
2639 int ff_extern;
2640 EOF
2641 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2642 extern_prefix=${sym%%ff_extern*}
2643
2644 check_cc <<EOF && enable inline_asm
2645 void foo(void) { __asm__ volatile ("" ::); }
2646 EOF
2647
2648 _restrict=
2649 for restrict_keyword in restrict __restrict__ __restrict; do
2650     check_cc <<EOF && _restrict=$restrict_keyword && break
2651 void foo(char * $restrict_keyword p);
2652 EOF
2653 done
2654
2655 check_cc <<EOF && enable attribute_packed
2656 struct { int x; } __attribute__((packed)) x;
2657 EOF
2658
2659 check_cc <<EOF && enable attribute_may_alias
2660 union { int x; } __attribute__((may_alias)) x;
2661 EOF
2662
2663 check_cc <<EOF || die "endian test failed"
2664 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2665 EOF
2666 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2667
2668 if enabled alpha; then
2669
2670     check_cflags -mieee
2671
2672 elif enabled arm; then
2673
2674     enabled thumb && check_cflags -mthumb || check_cflags -marm
2675     nogas=die
2676
2677     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2678         enable vfp_args
2679     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2680         case "${cross_prefix:-$cc}" in
2681             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2682             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2683 __asm__ (".eabi_attribute 28, 1");
2684 int main(void) { return 0; }
2685 EOF
2686         esac
2687         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2688     fi
2689
2690     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2691     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2692     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2693     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2694     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2695     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2696     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2697
2698     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2699
2700     enabled_all armv6t2 shared !pic && enable_pic
2701
2702 elif enabled mips; then
2703
2704     check_asm loongson '"dmult.g $1, $2, $3"'
2705     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2706
2707 elif enabled ppc; then
2708
2709     enable local_aligned_8 local_aligned_16
2710
2711     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2712     check_asm ibm_asm   '"add 0, 0, 0"'
2713     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2714     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2715
2716     # AltiVec flags: The FSF version of GCC differs from the Apple version
2717     if enabled altivec; then
2718         nogas=warn
2719         check_cflags -maltivec -mabi=altivec &&
2720         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2721         check_cflags -faltivec
2722
2723         # check if our compiler supports Motorola AltiVec C API
2724         check_cc <<EOF || disable altivec
2725 $inc_altivec_h
2726 int main(void) {
2727     vector signed int v1, v2, v3;
2728     v1 = vec_add(v2,v3);
2729     return 0;
2730 }
2731 EOF
2732
2733         # check if our compiler supports braces for vector declarations
2734         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2735 $inc_altivec_h
2736 int main (void) { (vector int) {1}; return 0; }
2737 EOF
2738     fi
2739
2740 elif enabled sparc; then
2741
2742     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2743         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2744
2745 elif enabled x86; then
2746
2747     enable local_aligned_8 local_aligned_16
2748
2749     # check whether EBP is available on x86
2750     # As 'i' is stored on the stack, this program will crash
2751     # if the base pointer is used to access it because the
2752     # base pointer is cleared in the inline assembly code.
2753     check_exec_crash <<EOF && enable ebp_available
2754     volatile int i=0;
2755     __asm__ volatile (
2756         "xorl %%ebp, %%ebp"
2757     ::: "%ebp");
2758     return i;
2759 EOF
2760
2761     # check whether EBX is available on x86
2762     check_asm ebx_available '""::"b"(0)' &&
2763         check_asm ebx_available '"":::"%ebx"'
2764
2765     # check whether xmm clobbers are supported
2766     check_asm xmm_clobbers '"":::"%xmm0"'
2767
2768     # check whether binutils is new enough to compile SSSE3/MMX2
2769     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2770     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2771
2772     if ! disabled_any asm mmx yasm; then
2773         if check_cmd $yasmexe --version; then
2774             enabled x86_64 && yasm_extra="-m amd64"
2775             yasm_debug="-g dwarf2"
2776         elif check_cmd nasm -v; then
2777             yasmexe=nasm
2778             yasm_debug="-g -F dwarf"
2779             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2780         fi
2781
2782         YASMFLAGS="-f $objformat $yasm_extra"
2783         enabled pic               && append YASMFLAGS "-DPIC"
2784         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2785         case "$objformat" in
2786             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2787         esac
2788
2789         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2790             die "yasm not found, use --disable-yasm for a crippled build"
2791         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2792     fi
2793
2794     case "$cpu" in
2795         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2796             disable fast_clz
2797         ;;
2798     esac
2799
2800 fi
2801
2802 if enabled asm; then
2803     as=${gas:=$as}
2804     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2805         $nogas "GNU assembler not found, install gas-preprocessor"
2806 fi
2807
2808 check_ldflags -Wl,--as-needed
2809
2810 if check_func dlopen; then
2811     ldl=
2812 elif check_func dlopen -ldl; then
2813     ldl=-ldl
2814 fi
2815
2816 if enabled network; then
2817     check_type "sys/types.h sys/socket.h" socklen_t
2818     check_type netdb.h "struct addrinfo"
2819     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2820     check_type netinet/in.h "struct sockaddr_in6"
2821     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2822     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2823     # Prefer arpa/inet.h over winsock2
2824     if check_header arpa/inet.h ; then
2825         check_func closesocket
2826     elif check_header winsock2.h ; then
2827         check_func_headers winsock2.h closesocket -lws2 && \
2828             network_extralibs="-lws2" || \
2829         { check_func_headers winsock2.h closesocket -lws2_32 && \
2830             network_extralibs="-lws2_32"; }
2831         check_type ws2tcpip.h socklen_t
2832         check_type ws2tcpip.h "struct addrinfo"
2833         check_type ws2tcpip.h "struct ipv6_mreq"
2834         check_type ws2tcpip.h "struct sockaddr_in6"
2835         check_type ws2tcpip.h "struct sockaddr_storage"
2836         check_struct winsock2.h "struct sockaddr" sa_len
2837     else
2838         disable network
2839     fi
2840 fi
2841
2842 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2843 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2844
2845 check_func  fcntl
2846 check_func  fork
2847 check_func  getaddrinfo $network_extralibs
2848 check_func  gethrtime
2849 check_func  getrusage
2850 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2851 check_func  inet_aton $network_extralibs
2852 check_func  isatty
2853 check_func  localtime_r
2854 check_func  ${malloc_prefix}memalign            && enable memalign
2855 check_func  mkstemp
2856 check_func  mmap
2857 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2858 check_func  setrlimit
2859 check_func  strerror_r
2860 check_func  strptime
2861 check_func  strtok_r
2862 check_func  sched_getaffinity
2863 check_func  sysconf
2864 check_func  sysctl
2865 check_func_headers io.h setmode
2866 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2867 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2868 check_func_headers windows.h GetProcessAffinityMask
2869 check_func_headers windows.h GetProcessTimes
2870 check_func_headers windows.h MapViewOfFile
2871 check_func_headers windows.h VirtualAlloc
2872
2873 check_header dlfcn.h
2874 check_header dxva2api.h
2875 check_header malloc.h
2876 check_header poll.h
2877 check_header sys/mman.h
2878 check_header sys/param.h
2879 check_header sys/resource.h
2880 check_header sys/select.h
2881 check_header vdpau/vdpau.h
2882 check_header vdpau/vdpau_x11.h
2883 check_header X11/extensions/XvMClib.h
2884
2885 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2886 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2887
2888 if ! disabled w32threads && ! enabled pthreads; then
2889     check_func _beginthreadex && enable w32threads
2890 fi
2891
2892 # check for some common methods of building with pthread support
2893 # do this before the optional library checks as some of them require pthreads
2894 if ! disabled pthreads && ! enabled w32threads; then
2895     enable pthreads
2896     if check_func pthread_create; then
2897         :
2898     elif check_func pthread_create -pthread; then
2899         add_cflags -pthread
2900         add_extralibs -pthread
2901     elif check_func pthread_create -pthreads; then
2902         add_cflags -pthreads
2903         add_extralibs -pthreads
2904     elif check_func pthread_create -lpthreadGC2; then
2905         add_extralibs -lpthreadGC2
2906     elif ! check_lib pthread.h pthread_create -lpthread; then
2907         disable pthreads
2908     fi
2909 fi
2910
2911 for thread in $THREADS_LIST; do
2912     if enabled $thread; then
2913         test -n "$thread_type" &&
2914             die "ERROR: Only one thread type must be selected." ||
2915             thread_type="$thread"
2916     fi
2917 done
2918
2919 check_lib math.h sin -lm && LIBM="-lm"
2920 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2921
2922 check_mathfunc exp2
2923 check_mathfunc exp2f
2924 check_mathfunc llrint
2925 check_mathfunc llrintf
2926 check_mathfunc log2
2927 check_mathfunc log2f
2928 check_mathfunc lrint
2929 check_mathfunc lrintf
2930 check_mathfunc round
2931 check_mathfunc roundf
2932 check_mathfunc trunc
2933 check_mathfunc truncf
2934
2935 # these are off by default, so fail if requested and not available
2936 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2937 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2938 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2939 enabled libdirac   && require_pkg_config dirac                          \
2940     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2941     "dirac_decoder_init dirac_encoder_init"
2942 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2943 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2944 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2945 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2946 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2947 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2948 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2949 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2950 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2951 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2952 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2953 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2954 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2955 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2956 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2957 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2958 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2959 enabled libvpx     && {
2960     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2961                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2962     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2963                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2964 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2965                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2966                         die "ERROR: libx264 version must be >= 0.118."; }
2967 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2968 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2969 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2970                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2971                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2972                         die "ERROR: openssl not found"; }
2973
2974 # libdc1394 check
2975 if enabled libdc1394; then
2976     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2977         enable libdc1394_2; } ||
2978     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2979         enable libdc1394_1; } ||
2980     die "ERROR: No version of libdc1394 found "
2981 fi
2982
2983 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2984     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2985     enable sdl &&
2986     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2987 fi
2988
2989 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2990
2991 check_header linux/fb.h
2992 check_header linux/videodev2.h
2993 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2994
2995 check_header sys/videoio.h
2996
2997 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2998 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2999 # w32api 3.12 had it defined wrong
3000 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3001
3002 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3003 { check_header dev/bktr/ioctl_meteor.h &&
3004   check_header dev/bktr/ioctl_bt848.h; } ||
3005 { check_header machine/ioctl_meteor.h &&
3006   check_header machine/ioctl_bt848.h; } ||
3007 { check_header dev/video/meteor/ioctl_meteor.h &&
3008   check_header dev/video/bktr/ioctl_bt848.h; } ||
3009 check_header dev/ic/bt8xx.h
3010
3011 check_header sndio.h
3012 check_header sys/soundcard.h
3013 check_header soundcard.h
3014
3015 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3016
3017 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3018
3019 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3020
3021 enabled libcdio &&
3022     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3023
3024 enabled x11grab                         &&
3025 check_header X11/Xlib.h                 &&
3026 check_header X11/extensions/XShm.h      &&
3027 check_header X11/extensions/Xfixes.h    &&
3028 check_func XOpenDisplay -lX11           &&
3029 check_func XShmCreateImage -lX11 -lXext &&
3030 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3031
3032 # check for VDA header
3033 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3034     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3035 fi
3036
3037 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3038 check_cpp_condition \
3039     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3040     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3041       disable vdpau; }
3042 fi
3043
3044 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3045
3046 # add some useful compiler flags if supported
3047 check_cflags -Wdeclaration-after-statement
3048 check_cflags -Wall
3049 check_cflags -Wno-parentheses
3050 check_cflags -Wno-switch
3051 check_cflags -Wno-format-zero-length
3052 check_cflags -Wdisabled-optimization
3053 check_cflags -Wpointer-arith
3054 check_cflags -Wredundant-decls
3055 check_cflags -Wno-pointer-sign
3056 check_cflags -Wcast-qual
3057 check_cflags -Wwrite-strings
3058 check_cflags -Wtype-limits
3059 check_cflags -Wundef
3060 check_cflags -Wmissing-prototypes
3061 check_cflags -Wstrict-prototypes
3062 enabled extra_warnings && check_cflags -Winline
3063
3064 # add some linker flags
3065 check_ldflags -Wl,--warn-common
3066 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3067 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3068
3069 enabled xmm_clobber_test &&                             \
3070     check_ldflags -Wl,--wrap,avcodec_open2              \
3071                   -Wl,--wrap,avcodec_decode_audio4      \
3072                   -Wl,--wrap,avcodec_decode_video2      \
3073                   -Wl,--wrap,avcodec_decode_subtitle2   \
3074                   -Wl,--wrap,avcodec_encode_audio2      \
3075                   -Wl,--wrap,avcodec_encode_video       \
3076                   -Wl,--wrap,avcodec_encode_subtitle    \
3077                   -Wl,--wrap,sws_scale ||               \
3078     disable xmm_clobber_test
3079
3080 echo "X{};" > $TMPV
3081 if test_ldflags -Wl,--version-script,$TMPV; then
3082     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3083     check_cc <<EOF && enable symver_asm_label
3084 void ff_foo(void) __asm__ ("av_foo@VERSION");
3085 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3086 EOF
3087     check_cc <<EOF && enable symver_gnu_asm
3088 __asm__(".symver ff_foo,av_foo@VERSION");
3089 void ff_foo(void) {}
3090 EOF
3091 fi
3092
3093 if [ -n "$optflags" ]; then
3094     add_cflags $optflags
3095 elif enabled small; then
3096     add_cflags $size_cflags
3097 elif enabled optimizations; then
3098     add_cflags $speed_cflags
3099 else
3100     add_cflags $noopt_cflags
3101 fi
3102 check_cflags -fno-math-errno
3103 check_cflags -fno-signed-zeros
3104
3105 if enabled icc; then
3106     # Just warnings, no remarks
3107     check_cflags -w1
3108     # -wd: Disable following warnings
3109     # 144, 167, 556: -Wno-pointer-sign
3110     # 1292: attribute "foo" ignored
3111     # 10006: ignoring unknown option -fno-signed-zeros
3112     # 10148: ignoring unknown option -Wno-parentheses
3113     # 10156: ignoring option '-W'; no argument required
3114     check_cflags -wd144,167,556,1292,10006,10148,10156
3115     # 11030: Warning unknown option --as-needed
3116     # 10156: ignoring option '-export'; no argument required
3117     check_ldflags -wd10156,11030
3118     # Allow to compile with optimizations
3119     check_ldflags -march=$cpu
3120     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3121     enable ebp_available
3122     if enabled x86_32; then
3123         test ${icc_version%%.*} -ge 11 && \
3124             check_cflags -falign-stack=maintain-16-byte || \
3125             disable aligned_stack
3126     fi
3127 elif enabled ccc; then
3128     # disable some annoying warnings
3129     add_cflags -msg_disable cvtu32to64
3130     add_cflags -msg_disable embedcomment
3131     add_cflags -msg_disable needconstext
3132     add_cflags -msg_disable nomainieee
3133     add_cflags -msg_disable ptrmismatch1
3134     add_cflags -msg_disable unreachcode
3135 elif enabled gcc; then
3136     check_cflags -fno-tree-vectorize
3137     check_cflags -Werror=implicit-function-declaration
3138     check_cflags -Werror=missing-prototypes
3139     check_cflags -Werror=declaration-after-statement
3140 elif enabled llvm_gcc; then
3141     check_cflags -mllvm -stack-alignment=16
3142 elif enabled clang; then
3143     check_cflags -mllvm -stack-alignment=16
3144     check_cflags -Qunused-arguments
3145 elif enabled armcc; then
3146     # 2523: use of inline assembler is deprecated
3147     add_cflags -W${armcc_opt},--diag_suppress=2523
3148     add_cflags -W${armcc_opt},--diag_suppress=1207
3149     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3150     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3151     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3152     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3153 elif enabled tms470; then
3154     add_cflags -pds=824 -pds=837
3155 elif enabled pathscale; then
3156     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3157 fi
3158
3159 enabled_any $THREADS_LIST      && enable threads
3160
3161 check_deps $CONFIG_LIST       \
3162            $CONFIG_EXTRA      \
3163            $HAVE_LIST         \
3164            $ALL_COMPONENTS    \
3165            $ALL_TESTS         \
3166
3167 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3168
3169 ! enabled_any memalign posix_memalign malloc_aligned &&
3170     enabled_any $need_memalign && enable memalign_hack
3171
3172 echo "install prefix            $prefix"
3173 echo "source path               $source_path"
3174 echo "C compiler                $cc"
3175 echo "ARCH                      $arch ($cpu)"
3176 if test "$build_suffix" != ""; then
3177     echo "build suffix              $build_suffix"
3178 fi
3179 if test "$extra_version" != ""; then
3180     echo "version string suffix     $extra_version"
3181 fi
3182 echo "big-endian                ${bigendian-no}"
3183 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3184 if enabled x86; then
3185     echo "${yasmexe}                      ${yasm-no}"
3186     echo "MMX enabled               ${mmx-no}"
3187     echo "MMX2 enabled              ${mmx2-no}"
3188     echo "3DNow! enabled            ${amd3dnow-no}"
3189     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3190     echo "SSE enabled               ${sse-no}"
3191     echo "SSSE3 enabled             ${ssse3-no}"
3192     echo "AVX enabled               ${avx-no}"
3193     echo "CMOV enabled              ${cmov-no}"
3194     echo "CMOV is fast              ${fast_cmov-no}"
3195     echo "EBX available             ${ebx_available-no}"
3196     echo "EBP available             ${ebp_available-no}"
3197 fi
3198 if enabled arm; then
3199     echo "ARMv5TE enabled           ${armv5te-no}"
3200     echo "ARMv6 enabled             ${armv6-no}"
3201     echo "ARMv6T2 enabled           ${armv6t2-no}"
3202     echo "ARM VFP enabled           ${armvfp-no}"
3203     echo "IWMMXT enabled            ${iwmmxt-no}"
3204     echo "NEON enabled              ${neon-no}"
3205 fi
3206 if enabled mips; then
3207     echo "MMI enabled               ${mmi-no}"
3208 fi
3209 if enabled ppc; then
3210     echo "AltiVec enabled           ${altivec-no}"
3211     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3212     echo "dcbzl available           ${dcbzl-no}"
3213 fi
3214 if enabled sparc; then
3215     echo "VIS enabled               ${vis-no}"
3216 fi
3217 echo "debug symbols             ${debug-no}"
3218 echo "optimize for size         ${small-no}"
3219 echo "optimizations             ${optimizations-no}"
3220 echo "static                    ${static-no}"
3221 echo "shared                    ${shared-no}"
3222 echo "new filter support        ${avfilter-no}"
3223 echo "network support           ${network-no}"
3224 echo "threading support         ${thread_type-no}"
3225 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3226 echo "SDL support               ${sdl-no}"
3227 echo "libdxva2 enabled          ${dxva2-no}"
3228 echo "libva enabled             ${vaapi-no}"
3229 echo "libvdpau enabled          ${vdpau-no}"
3230 echo "AVISynth enabled          ${avisynth-no}"
3231 echo "frei0r enabled            ${frei0r-no}"
3232 echo "gnutls enabled            ${gnutls-no}"
3233 echo "libcdio support           ${libcdio-no}"
3234 echo "libdc1394 support         ${libdc1394-no}"
3235 echo "libdirac enabled          ${libdirac-no}"
3236 echo "libfaac enabled           ${libfaac-no}"
3237 echo "libgsm enabled            ${libgsm-no}"
3238 echo "libmp3lame enabled        ${libmp3lame-no}"
3239 echo "libnut enabled            ${libnut-no}"
3240 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3241 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3242 echo "libopencv support         ${libopencv-no}"
3243 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3244 echo "libpulse enabled          ${libpulse-no}"
3245 echo "librtmp enabled           ${librtmp-no}"
3246 echo "libschroedinger enabled   ${libschroedinger-no}"
3247 echo "libspeex enabled          ${libspeex-no}"
3248 echo "libtheora enabled         ${libtheora-no}"
3249 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3250 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3251 echo "libvorbis enabled         ${libvorbis-no}"
3252 echo "libvpx enabled            ${libvpx-no}"
3253 echo "libx264 enabled           ${libx264-no}"
3254 echo "libxavs enabled           ${libxavs-no}"
3255 echo "libxvid enabled           ${libxvid-no}"
3256 echo "openssl enabled           ${openssl-no}"
3257 echo "zlib enabled              ${zlib-no}"
3258 echo "bzlib enabled             ${bzlib-no}"
3259 echo
3260
3261 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3262     echo "Enabled ${type}s:"
3263     eval list=\$$(toupper $type)_LIST
3264     print_enabled '_*' $list | sort | pr -r -3 -t
3265     echo
3266 done
3267
3268 license="LGPL version 2.1 or later"
3269 if enabled nonfree; then
3270     license="nonfree and unredistributable"
3271 elif enabled gplv3; then
3272     license="GPL version 3 or later"
3273 elif enabled lgplv3; then
3274     license="LGPL version 3 or later"
3275 elif enabled gpl; then
3276     license="GPL version 2 or later"
3277 fi
3278
3279 echo "License: $license"
3280
3281 echo "Creating config.mak and config.h..."
3282
3283 test -e Makefile || $ln_s "$source_path/Makefile" .
3284
3285 config_files="$TMPH config.mak"
3286
3287 cat > config.mak <<EOF
3288 # Automatically generated by configure - do not modify!
3289 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3290 prefix=$prefix
3291 LIBDIR=\$(DESTDIR)$libdir
3292 SHLIBDIR=\$(DESTDIR)$shlibdir
3293 INCDIR=\$(DESTDIR)$incdir
3294 BINDIR=\$(DESTDIR)$bindir
3295 DATADIR=\$(DESTDIR)$datadir
3296 MANDIR=\$(DESTDIR)$mandir
3297 SRC_PATH=$source_path
3298 CC_IDENT=$cc_ident
3299 ARCH=$arch
3300 CC=$cc
3301 AS=$as
3302 LD=$ld
3303 DEPCC=$dep_cc
3304 YASM=$yasmexe
3305 YASMDEP=$yasmexe
3306 AR=$ar
3307 RANLIB=$ranlib
3308 LN_S=$ln_s
3309 CPPFLAGS=$CPPFLAGS
3310 CFLAGS=$CFLAGS
3311 ASFLAGS=$ASFLAGS
3312 AS_O=$CC_O
3313 CC_O=$CC_O
3314 DLLTOOL=$dlltool
3315 LDFLAGS=$LDFLAGS
3316 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3317 SHFLAGS=$SHFLAGS
3318 YASMFLAGS=$YASMFLAGS
3319 BUILDSUF=$build_suffix
3320 FULLNAME=$FULLNAME
3321 LIBPREF=$LIBPREF
3322 LIBSUF=$LIBSUF
3323 LIBNAME=$LIBNAME
3324 SLIBPREF=$SLIBPREF
3325 SLIBSUF=$SLIBSUF
3326 EXESUF=$EXESUF
3327 EXTRA_VERSION=$extra_version
3328 DEPFLAGS=$DEPFLAGS
3329 CCDEP=$CCDEP
3330 ASDEP=$ASDEP
3331 CC_DEPFLAGS=$CC_DEPFLAGS
3332 AS_DEPFLAGS=$AS_DEPFLAGS
3333 HOSTCC=$host_cc
3334 HOSTCFLAGS=$host_cflags
3335 HOSTEXESUF=$HOSTEXESUF
3336 HOSTLDFLAGS=$host_ldflags
3337 HOSTLIBS=$host_libs
3338 TARGET_EXEC=$target_exec
3339 TARGET_PATH=$target_path
3340 SDL_LIBS=$sdl_libs
3341 SDL_CFLAGS=$sdl_cflags
3342 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3343 EXTRALIBS=$extralibs
3344 INSTALL=install
3345 LIBTARGET=${LIBTARGET}
3346 SLIBNAME=${SLIBNAME}
3347 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3348 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3349 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3350 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3351 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3352 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3353 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3354 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3355 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3356 EOF
3357
3358 get_version(){
3359     name=$1
3360     file=$source_path/$2
3361     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3362     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3363     lcname=$(tolower $name)
3364     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3365     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3366 }
3367
3368 get_version LIBAVCODEC  libavcodec/version.h
3369 get_version LIBAVDEVICE libavdevice/avdevice.h
3370 get_version LIBAVFILTER libavfilter/version.h
3371 get_version LIBAVFORMAT libavformat/version.h
3372 get_version LIBAVUTIL   libavutil/avutil.h
3373 get_version LIBSWSCALE  libswscale/swscale.h
3374
3375 cat > $TMPH <<EOF
3376 /* Automatically generated by configure - do not modify! */
3377 #ifndef LIBAV_CONFIG_H
3378 #define LIBAV_CONFIG_H
3379 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3380 #define LIBAV_LICENSE "$(c_escape $license)"
3381 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3382 #define CC_TYPE "$cc_type"
3383 #define CC_VERSION $cc_version
3384 #define restrict $_restrict
3385 #define EXTERN_PREFIX "${extern_prefix}"
3386 #define EXTERN_ASM ${extern_prefix}
3387 #define SLIBSUF "$SLIBSUF"
3388 EOF
3389
3390 test -n "$malloc_prefix" &&
3391     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3392
3393 if enabled small || disabled optimizations; then
3394     echo "#undef  av_always_inline"  >> $TMPH
3395     if enabled small; then
3396         echo "#define av_always_inline inline"  >> $TMPH
3397     else
3398         echo "#define av_always_inline av_unused"  >> $TMPH
3399     fi
3400 fi
3401
3402 if enabled yasm; then
3403     append config_files $TMPASM
3404     printf '' >$TMPASM
3405 fi
3406
3407 print_config ARCH_   "$config_files" $ARCH_LIST
3408 print_config HAVE_   "$config_files" $HAVE_LIST
3409 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3410                                      $CONFIG_EXTRA      \
3411                                      $ALL_COMPONENTS    \
3412
3413 cat >>config.mak <<EOF
3414 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3415 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3416 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3417 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3418 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3419 EOF
3420
3421 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3422
3423 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3424 cp_if_changed $TMPH config.h
3425 touch .config
3426
3427 enabled yasm && cp_if_changed $TMPASM config.asm
3428
3429 cat > $TMPH <<EOF
3430 /* Generated by ffconf */
3431 #ifndef AVUTIL_AVCONFIG_H
3432 #define AVUTIL_AVCONFIG_H
3433 EOF
3434
3435 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3436
3437 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3438
3439 cp_if_changed $TMPH libavutil/avconfig.h
3440
3441 test -n "$WARNINGS" && printf "\n$WARNINGS"
3442
3443 # build pkg-config files
3444
3445 pkgconfig_generate(){
3446 name=$1
3447 shortname=${name#lib}${build_suffix}
3448 comment=$2
3449 version=$3
3450 libs=$4
3451 requires=$5
3452 enabled ${name#lib} || return 0
3453 mkdir -p $name
3454 cat <<EOF > $name/$name.pc
3455 prefix=$prefix
3456 exec_prefix=\${prefix}
3457 libdir=$libdir
3458 includedir=$incdir
3459
3460 Name: $name
3461 Description: $comment
3462 Version: $version
3463 Requires: $(enabled shared || echo $requires)
3464 Requires.private: $(enabled shared && echo $requires)
3465 Conflicts:
3466 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3467 Libs.private: $(enabled shared && echo $libs)
3468 Cflags: -I\${includedir}
3469 EOF
3470 cat <<EOF > $name/$name-uninstalled.pc
3471 prefix=
3472 exec_prefix=
3473 libdir=\${pcfiledir}
3474 includedir=${source_path}
3475
3476 Name: $name
3477 Description: $comment
3478 Version: $version
3479 Requires: $requires
3480 Conflicts:
3481 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3482 Cflags: -I\${includedir}
3483 EOF
3484 }
3485
3486 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3487 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3488 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3489 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3490 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3491 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"