configure: die if x11grab dependencies are unavailable
[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 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-avconv         disable avconv build
105   --disable-avplay         disable avplay build
106   --disable-avprobe        disable avprobe build
107   --disable-avserver       disable avserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swscale        disable libswscale build
112   --disable-avfilter       disable video filter support [no]
113   --disable-pthreads       disable pthreads [auto]
114   --disable-w32threads     disable Win32 threads [auto]
115   --enable-x11grab         enable X11 grabbing [no]
116   --disable-network        disable network support [no]
117   --disable-dct            disable DCT code
118   --disable-fft            disable FFT code
119   --disable-mdct           disable MDCT code
120   --disable-rdft           disable RDFT code
121   --disable-fft            disable FFT code
122   --enable-dxva2           enable DXVA2 code
123   --enable-vaapi           enable VAAPI code
124   --enable-vda             enable VDA code
125   --enable-vdpau           enable VDPAU code
126
127 Individual component options:
128   --disable-everything     disable all components listed below
129   --disable-encoder=NAME   disable encoder NAME
130   --enable-encoder=NAME    enable encoder NAME
131   --disable-encoders       disable all encoders
132   --disable-decoder=NAME   disable decoder NAME
133   --enable-decoder=NAME    enable decoder NAME
134   --disable-decoders       disable all decoders
135   --disable-hwaccel=NAME   disable hwaccel NAME
136   --enable-hwaccel=NAME    enable hwaccel NAME
137   --disable-hwaccels       disable all hwaccels
138   --disable-muxer=NAME     disable muxer NAME
139   --enable-muxer=NAME      enable muxer NAME
140   --disable-muxers         disable all muxers
141   --disable-demuxer=NAME   disable demuxer NAME
142   --enable-demuxer=NAME    enable demuxer NAME
143   --disable-demuxers       disable all demuxers
144   --enable-parser=NAME     enable parser NAME
145   --disable-parser=NAME    disable parser NAME
146   --disable-parsers        disable all parsers
147   --enable-bsf=NAME        enable bitstream filter NAME
148   --disable-bsf=NAME       disable bitstream filter NAME
149   --disable-bsfs           disable all bitstream filters
150   --enable-protocol=NAME   enable protocol NAME
151   --disable-protocol=NAME  disable protocol NAME
152   --disable-protocols      disable all protocols
153   --enable-indev=NAME      enable input device NAME
154   --disable-indev=NAME     disable input device NAME
155   --disable-indevs         disable input devices
156   --enable-outdev=NAME     enable output device NAME
157   --disable-outdev=NAME    disable output device NAME
158   --disable-outdevs        disable output devices
159   --disable-devices        disable all devices
160   --enable-filter=NAME     enable filter NAME
161   --disable-filter=NAME    disable filter NAME
162   --disable-filters        disable all filters
163
164 External library support:
165   --enable-avisynth        enable reading of AVISynth script files [no]
166   --enable-bzlib           enable bzlib [autodetect]
167   --enable-frei0r          enable frei0r video filtering
168   --enable-gnutls          enable gnutls [no]
169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
171   --enable-libopencv       enable video filtering via libopencv [no]
172   --enable-libcdio         enable audio CD grabbing with libcdio
173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
174                            and libraw1394 [no]
175   --enable-libdirac        enable Dirac support via libdirac [no]
176   --enable-libfaac         enable FAAC support via libfaac [no]
177   --enable-libfreetype     enable libfreetype [no]
178   --enable-libgsm          enable GSM support via libgsm [no]
179   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
180   --enable-libnut          enable NUT (de)muxing via libnut,
181                            native (de)muxer exists [no]
182   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
183   --enable-libpulse        enable Pulseaudio input via libpulse [no]
184   --enable-librtmp         enable RTMP[E] support via librtmp [no]
185   --enable-libschroedinger enable Dirac support via libschroedinger [no]
186   --enable-libspeex        enable Speex support via libspeex [no]
187   --enable-libtheora       enable Theora encoding via libtheora [no]
188   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
189   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
190   --enable-libvorbis       enable Vorbis encoding via libvorbis,
191                            native implementation exists [no]
192   --enable-libvpx          enable VP8 support via libvpx [no]
193   --enable-libx264         enable H.264 encoding via x264 [no]
194   --enable-libxavs         enable AVS encoding via xavs [no]
195   --enable-libxvid         enable Xvid encoding via xvidcore,
196                            native MPEG-4/Xvid encoder exists [no]
197   --enable-openssl         enable openssl [no]
198   --enable-zlib            enable zlib [autodetect]
199
200 Advanced options (experts only):
201   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
202   --enable-cross-compile   assume a cross-compiler is used
203   --sysroot=PATH           root of cross-build tree
204   --sysinclude=PATH        location of cross-build system headers
205   --target-os=OS           compiler targets OS [$target_os]
206   --target-exec=CMD        command to run executables on target
207   --target-path=DIR        path to view of build directory on target
208   --nm=NM                  use nm tool
209   --ar=AR                  use archive tool AR [$ar_default]
210   --as=AS                  use assembler AS [$as_default]
211   --cc=CC                  use C compiler CC [$cc_default]
212   --ld=LD                  use linker LD
213   --host-cc=HOSTCC         use host C compiler HOSTCC
214   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
215   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
216   --host-libs=HLIBS        use libs HLIBS when linking for host
217   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
218   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
219   --extra-libs=ELIBS       add ELIBS [$ELIBS]
220   --extra-version=STRING   version string suffix []
221   --optflags               override optimization-related compiler flags
222   --build-suffix=SUFFIX    library name suffix []
223   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
224   --arch=ARCH              select architecture [$arch]
225   --cpu=CPU                select the minimum required CPU (affects
226                            instruction selection, may crash on older CPUs)
227   --enable-pic             build position-independent code
228   --enable-sram            allow use of on-chip SRAM
229   --disable-symver         disable symbol versioning
230   --disable-fastdiv        disable table-based division
231   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
232   --disable-safe-bitstream-reader
233                            disable buffer boundary checking in bitreaders
234                            (faster, but may crash)
235   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
236
237 Optimization options (experts only):
238   --disable-asm            disable all assembler optimizations
239   --disable-altivec        disable AltiVec optimizations
240   --disable-amd3dnow       disable 3DNow! optimizations
241   --disable-amd3dnowext    disable 3DNow! extended optimizations
242   --disable-mmx            disable MMX optimizations
243   --disable-mmx2           disable MMX2 optimizations
244   --disable-sse            disable SSE optimizations
245   --disable-ssse3          disable SSSE3 optimizations
246   --disable-avx            disable AVX optimizations
247   --disable-armv5te        disable armv5te optimizations
248   --disable-armv6          disable armv6 optimizations
249   --disable-armv6t2        disable armv6t2 optimizations
250   --disable-armvfp         disable ARM VFP optimizations
251   --disable-mmi            disable MMI optimizations
252   --disable-neon           disable NEON optimizations
253   --disable-vis            disable VIS optimizations
254   --disable-yasm           disable use of yasm assembler
255
256 Developer options (useful when working on Libav itself):
257   --disable-debug          disable debugging symbols
258   --enable-debug=LEVEL     set the debug level [$debuglevel]
259   --disable-optimizations  disable compiler optimizations
260   --enable-extra-warnings  enable more compiler warnings
261   --samples=PATH           location of test samples for FATE, if not set use
262                            \$FATE_SAMPLES at make invocation time.
263   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
264                            should be used only for debugging purposes)
265
266 NOTE: Object files are built at the place where configure is launched.
267 EOF
268   exit 0
269 }
270
271 quotes='""'
272
273 log(){
274     echo "$@" >> $logfile
275 }
276
277 log_file(){
278     log BEGIN $1
279     pr -n -t $1 >> $logfile
280     log END $1
281 }
282
283 echolog(){
284     log "$@"
285     echo "$@"
286 }
287
288 warn(){
289     log "WARNING: $*"
290     WARNINGS="${WARNINGS}WARNING: $*\n"
291 }
292
293 die(){
294     echolog "$@"
295     cat <<EOF
296
297 If you think configure made a mistake, make sure you are using the latest
298 version from Git.  If the latest version fails, report the problem to the
299 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
300 EOF
301     if disabled logging; then
302         cat <<EOF
303 Rerun configure with logging enabled (do not use --disable-logging), and
304 include the log this produces with your report.
305 EOF
306     else
307 cat <<EOF
308 Include the log file "$logfile" produced by configure as this will help
309 solving the problem.
310 EOF
311     fi
312     exit 1
313 }
314
315 # Avoid locale weirdness, besides we really just want to translate ASCII.
316 toupper(){
317     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
318 }
319
320 tolower(){
321     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
322 }
323
324 c_escape(){
325     echo "$*" | sed 's/["\\]/\\\0/g'
326 }
327
328 sh_quote(){
329     v=$(echo "$1" | sed "s/'/'\\\\''/g")
330     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
331     echo "$v"
332 }
333
334 cleanws(){
335     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
336 }
337
338 filter(){
339     pat=$1
340     shift
341     for v; do
342         eval "case $v in $pat) echo $v ;; esac"
343     done
344 }
345
346 filter_out(){
347     pat=$1
348     shift
349     for v; do
350         eval "case $v in $pat) ;; *) echo $v ;; esac"
351     done
352 }
353
354 map(){
355     m=$1
356     shift
357     for v; do eval $m; done
358 }
359
360 set_all(){
361     value=$1
362     shift
363     for var in $*; do
364         eval $var=$value
365     done
366 }
367
368 set_weak(){
369     value=$1
370     shift
371     for var; do
372         eval : \${$var:=$value}
373     done
374 }
375
376 set_safe(){
377     var=$1
378     shift
379     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
380 }
381
382 get_safe(){
383     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
384 }
385
386 pushvar(){
387     for var in $*; do
388         eval level=\${${var}_level:=0}
389         eval ${var}_${level}="\$$var"
390         eval ${var}_level=$(($level+1))
391     done
392 }
393
394 popvar(){
395     for var in $*; do
396         eval level=\${${var}_level:-0}
397         test $level = 0 && continue
398         eval level=$(($level-1))
399         eval $var="\${${var}_${level}}"
400         eval ${var}_level=$level
401         eval unset ${var}_${level}
402     done
403 }
404
405 enable(){
406     set_all yes $*
407 }
408
409 disable(){
410     set_all no $*
411 }
412
413 enable_weak(){
414     set_weak yes $*
415 }
416
417 disable_weak(){
418     set_weak no $*
419 }
420
421 enable_safe(){
422     for var; do
423         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
424     done
425 }
426
427 disable_safe(){
428     for var; do
429         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
430     done
431 }
432
433 do_enable_deep(){
434     for var; do
435         enabled $var && continue
436         eval sel="\$${var}_select"
437         eval sgs="\$${var}_suggest"
438         pushvar var sgs
439         enable_deep $sel
440         popvar sgs
441         enable_deep_weak $sgs
442         popvar var
443     done
444 }
445
446 enable_deep(){
447     do_enable_deep $*
448     enable $*
449 }
450
451 enable_deep_weak(){
452     do_enable_deep $*
453     enable_weak $*
454 }
455
456 enabled(){
457     test "${1#!}" = "$1" && op== || op=!=
458     eval test "x\$${1#!}" $op "xyes"
459 }
460
461 disabled(){
462     test "${1#!}" = "$1" && op== || op=!=
463     eval test "x\$${1#!}" $op "xno"
464 }
465
466 enabled_all(){
467     for opt; do
468         enabled $opt || return 1
469     done
470 }
471
472 disabled_all(){
473     for opt; do
474         disabled $opt || return 1
475     done
476 }
477
478 enabled_any(){
479     for opt; do
480         enabled $opt && return 0
481     done
482 }
483
484 disabled_any(){
485     for opt; do
486         disabled $opt && return 0
487     done
488     return 1
489 }
490
491 set_default(){
492     for opt; do
493         eval : \${$opt:=\$${opt}_default}
494     done
495 }
496
497 is_in(){
498     value=$1
499     shift
500     for var in $*; do
501         [ $var = $value ] && return 0
502     done
503     return 1
504 }
505
506 check_deps(){
507     for cfg; do
508         cfg="${cfg#!}"
509         enabled ${cfg}_checking && die "Circular dependency for $cfg."
510         disabled ${cfg}_checking && continue
511         enable ${cfg}_checking
512
513         eval dep_all="\$${cfg}_deps"
514         eval dep_any="\$${cfg}_deps_any"
515         eval dep_sel="\$${cfg}_select"
516         eval dep_sgs="\$${cfg}_suggest"
517         eval dep_ifa="\$${cfg}_if"
518         eval dep_ifn="\$${cfg}_if_any"
519
520         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
521         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
522         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
523
524         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
525         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
526         enabled_all  $dep_all || disable $cfg
527         enabled_any  $dep_any || disable $cfg
528         disabled_any $dep_sel && disable $cfg
529
530         if enabled $cfg; then
531             eval dep_extralibs="\$${cfg}_extralibs"
532             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
533             enable_deep $dep_sel
534             enable_deep_weak $dep_sgs
535         fi
536
537         disable ${cfg}_checking
538     done
539 }
540
541 print_config_h(){
542     enabled $1 && v=1 || v=0
543     echo "#define $2 $v"
544 }
545
546 print_config_mak(){
547     enabled $1 && v= || v=!
548     echo "$v$2=yes"
549 }
550
551 print_config_asm(){
552     enabled $1 && v=1 || v=0
553     echo "%define $2 $v"
554 }
555
556 print_config(){
557     pfx=$1
558     files=$2
559     shift 2
560     for cfg; do
561         ucname="$(toupper $cfg)"
562         for f in $files; do
563             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
564         done
565     done
566 }
567
568 print_enabled(){
569     test "$1" = -n && end=" " && shift || end="\n"
570     suf=$1
571     shift
572     for v; do
573         enabled $v && printf "%s$end" ${v%$suf};
574     done
575 }
576
577 append(){
578     var=$1
579     shift
580     eval "$var=\"\$$var $*\""
581 }
582
583 prepend(){
584     var=$1
585     shift
586     eval "$var=\"$* \$$var\""
587 }
588
589 add_cppflags(){
590     append CPPFLAGS $($filter_cppflags "$@")
591 }
592
593 add_cflags(){
594     append CFLAGS $($filter_cflags "$@")
595 }
596
597 add_asflags(){
598     append ASFLAGS $($filter_asflags "$@")
599 }
600
601 add_ldflags(){
602     append LDFLAGS "$@"
603 }
604
605 add_extralibs(){
606     prepend extralibs "$@"
607 }
608
609 check_cmd(){
610     log "$@"
611     "$@" >> $logfile 2>&1
612 }
613
614 check_cc(){
615     log check_cc "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
619 }
620
621 check_cpp(){
622     log check_cpp "$@"
623     cat > $TMPC
624     log_file $TMPC
625     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
626 }
627
628 check_as(){
629     log check_as "$@"
630     cat > $TMPC
631     log_file $TMPC
632     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
633 }
634
635 check_asm(){
636     log check_asm "$@"
637     name="$1"
638     code="$2"
639     shift 2
640     disable $name
641     check_as "$@" <<EOF && enable $name
642 void foo(void){ __asm__ volatile($code); }
643 EOF
644 }
645
646 check_yasm(){
647     log check_yasm "$@"
648     echo "$1" > $TMPS
649     log_file $TMPS
650     shift 1
651     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
652 }
653
654 check_ld(){
655     log check_ld "$@"
656     flags=''
657     libs=''
658     for f; do
659         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
660     done
661     check_cc $($filter_cflags $flags) || return
662     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
663 }
664
665 check_cppflags(){
666     log check_cppflags "$@"
667     set -- $($filter_cppflags "$@")
668     check_cc "$@" <<EOF && append CPPFLAGS "$@"
669 int x;
670 EOF
671 }
672
673 check_cflags(){
674     log check_cflags "$@"
675     set -- $($filter_cflags "$@")
676     check_cc "$@" <<EOF && append CFLAGS "$@"
677 int x;
678 EOF
679 }
680
681 test_ldflags(){
682     log test_ldflags "$@"
683     check_ld "$@" <<EOF
684 int main(void){ return 0; }
685 EOF
686 }
687
688 check_ldflags(){
689     log check_ldflags "$@"
690     test_ldflags "$@" && add_ldflags "$@"
691 }
692
693 check_header(){
694     log check_header "$@"
695     header=$1
696     shift
697     disable_safe $header
698     check_cpp "$@" <<EOF && enable_safe $header
699 #include <$header>
700 int x;
701 EOF
702 }
703
704 check_func(){
705     log check_func "$@"
706     func=$1
707     shift
708     disable $func
709     check_ld "$@" <<EOF && enable $func
710 extern int $func();
711 int main(void){ $func(); }
712 EOF
713 }
714
715 check_mathfunc(){
716     log check_mathfunc "$@"
717     func=$1
718     shift
719     disable $func
720     check_ld "$@" <<EOF && enable $func
721 #include <math.h>
722 float foo(float f) { return $func(f); }
723 int main(void){ return 0; }
724 EOF
725 }
726
727 check_func_headers(){
728     log check_func_headers "$@"
729     headers=$1
730     funcs=$2
731     shift 2
732     {
733         for hdr in $headers; do
734             echo "#include <$hdr>"
735         done
736         for func in $funcs; do
737             echo "long check_$func(void) { return (long) $func; }"
738         done
739         echo "int main(void) { return 0; }"
740     } | check_ld "$@" && enable $funcs && enable_safe $headers
741 }
742
743 check_cpp_condition(){
744     log check_cpp_condition "$@"
745     header=$1
746     condition=$2
747     shift 2
748     check_cpp $($filter_cppflags "$@") <<EOF
749 #include <$header>
750 #if !($condition)
751 #error "unsatisfied condition: $condition"
752 #endif
753 EOF
754 }
755
756 check_lib(){
757     log check_lib "$@"
758     header="$1"
759     func="$2"
760     shift 2
761     check_header $header && check_func $func "$@" && add_extralibs "$@"
762 }
763
764 check_lib2(){
765     log check_lib2 "$@"
766     headers="$1"
767     funcs="$2"
768     shift 2
769     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
770 }
771
772 check_pkg_config(){
773     log check_pkg_config "$@"
774     pkg="$1"
775     headers="$2"
776     funcs="$3"
777     shift 3
778     $pkg_config --exists $pkg || return
779     pkg_cflags=$($pkg_config --cflags $pkg)
780     pkg_libs=$($pkg_config --libs $pkg)
781     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
782         set_safe ${pkg}_cflags $pkg_cflags   &&
783         set_safe ${pkg}_libs   $pkg_libs
784 }
785
786 check_exec(){
787     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
788 }
789
790 check_exec_crash(){
791     code=$(cat)
792
793     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
794     # are safe but may not be available everywhere.  Thus we use
795     # raise(SIGTERM) instead.  The check is run in a subshell so we
796     # can redirect the "Terminated" message from the shell.  SIGBUS
797     # is not defined by standard C so it is used conditionally.
798
799     (check_exec "$@") >> $logfile 2>&1 <<EOF
800 #include <signal.h>
801 static void sighandler(int sig){
802     raise(SIGTERM);
803 }
804 int main(void){
805     signal(SIGILL, sighandler);
806     signal(SIGFPE, sighandler);
807     signal(SIGSEGV, sighandler);
808 #ifdef SIGBUS
809     signal(SIGBUS, sighandler);
810 #endif
811     { $code }
812 }
813 EOF
814 }
815
816 check_type(){
817     log check_type "$@"
818     headers=$1
819     type=$2
820     shift 2
821     disable_safe "$type"
822     incs=""
823     for hdr in $headers; do
824         incs="$incs
825 #include <$hdr>"
826     done
827     check_cc "$@" <<EOF && enable_safe "$type"
828 $incs
829 $type v;
830 EOF
831 }
832
833 check_struct(){
834     log check_type "$@"
835     headers=$1
836     struct=$2
837     member=$3
838     shift 3
839     disable_safe "${struct}_${member}"
840     incs=""
841     for hdr in $headers; do
842         incs="$incs
843 #include <$hdr>"
844     done
845     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
846 $incs
847 const void *p = &(($struct *)0)->$member;
848 EOF
849 }
850
851 require(){
852     name="$1"
853     header="$2"
854     func="$3"
855     shift 3
856     check_lib $header $func "$@" || die "ERROR: $name not found"
857 }
858
859 require2(){
860     name="$1"
861     headers="$2"
862     func="$3"
863     shift 3
864     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
865 }
866
867 require_pkg_config(){
868     pkg="$1"
869     check_pkg_config "$@" || die "ERROR: $pkg not found"
870     add_cflags    $(get_safe ${pkg}_cflags)
871     add_extralibs $(get_safe ${pkg}_libs)
872 }
873
874 check_host_cc(){
875     log check_host_cc "$@"
876     cat > $TMPC
877     log_file $TMPC
878     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
879 }
880
881 check_host_cflags(){
882     log check_host_cflags "$@"
883     check_host_cc "$@" <<EOF && append host_cflags "$@"
884 int x;
885 EOF
886 }
887
888 apply(){
889     file=$1
890     shift
891     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
892 }
893
894 cp_if_changed(){
895     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
896     mkdir -p "$(dirname $2)"
897     cp -f "$1" "$2"
898 }
899
900 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
901 # system-dependent things.
902
903 COMPONENT_LIST="
904     bsfs
905     decoders
906     demuxers
907     encoders
908     filters
909     hwaccels
910     indevs
911     muxers
912     outdevs
913     parsers
914     protocols
915 "
916
917 PROGRAM_LIST="
918     avconv
919     avplay
920     avprobe
921     avserver
922 "
923
924 CONFIG_LIST="
925     $COMPONENT_LIST
926     $PROGRAM_LIST
927     ac3dsp
928     avcodec
929     avdevice
930     avfilter
931     avformat
932     avisynth
933     bzlib
934     dct
935     doc
936     dwt
937     dxva2
938     fastdiv
939     fft
940     frei0r
941     gnutls
942     gpl
943     gray
944     hardcoded_tables
945     libcdio
946     libdc1394
947     libdirac
948     libfaac
949     libfreetype
950     libgsm
951     libmp3lame
952     libnut
953     libopencore_amrnb
954     libopencore_amrwb
955     libopencv
956     libopenjpeg
957     libpulse
958     librtmp
959     libschroedinger
960     libspeex
961     libtheora
962     libvo_aacenc
963     libvo_amrwbenc
964     libvorbis
965     libvpx
966     libx264
967     libxavs
968     libxvid
969     lsp
970     mdct
971     memalign_hack
972     mpegaudiodsp
973     network
974     nonfree
975     openssl
976     pic
977     rdft
978     rtpdec
979     runtime_cpudetect
980     safe_bitstream_reader
981     shared
982     sinewin
983     small
984     sram
985     static
986     swscale
987     swscale_alpha
988     thumb
989     vaapi
990     vda
991     vdpau
992     version3
993     xmm_clobber_test
994     x11grab
995     zlib
996 "
997
998 THREADS_LIST='
999     pthreads
1000     w32threads
1001 '
1002
1003 ARCH_LIST='
1004     alpha
1005     arm
1006     avr32
1007     avr32_ap
1008     avr32_uc
1009     bfin
1010     ia64
1011     m68k
1012     mips
1013     mips64
1014     parisc
1015     ppc
1016     ppc64
1017     s390
1018     sh4
1019     sparc
1020     sparc64
1021     tomi
1022     x86
1023     x86_32
1024     x86_64
1025 '
1026
1027 ARCH_EXT_LIST='
1028     altivec
1029     amd3dnow
1030     amd3dnowext
1031     armv5te
1032     armv6
1033     armv6t2
1034     armvfp
1035     avx
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     aandct
1162     avutil
1163     golomb
1164     gplv3
1165     h264chroma
1166     h264dsp
1167     h264pred
1168     huffman
1169     lgplv3
1170     lpc
1171 "
1172
1173 CMDLINE_SELECT="
1174     $ARCH_EXT_LIST
1175     $CONFIG_LIST
1176     $THREADS_LIST
1177     asm
1178     cross_compile
1179     debug
1180     extra_warnings
1181     logging
1182     optimizations
1183     symver
1184     yasm
1185 "
1186
1187 PATHS_LIST='
1188     bindir
1189     datadir
1190     incdir
1191     libdir
1192     mandir
1193     prefix
1194     shlibdir
1195 '
1196
1197 CMDLINE_SET="
1198     $PATHS_LIST
1199     ar
1200     arch
1201     as
1202     build_suffix
1203     cc
1204     cpu
1205     cross_prefix
1206     dep_cc
1207     extra_version
1208     host_cc
1209     host_cflags
1210     host_ldflags
1211     host_libs
1212     host_os
1213     ld
1214     logfile
1215     malloc_prefix
1216     nm
1217     optflags
1218     pkg_config
1219     samples
1220     sysinclude
1221     sysroot
1222     target_exec
1223     target_os
1224     target_path
1225 "
1226
1227 CMDLINE_APPEND="
1228     extra_cflags
1229 "
1230
1231 # code dependency declarations
1232
1233 # architecture extensions
1234
1235 armv5te_deps="arm"
1236 armv6_deps="arm"
1237 armv6t2_deps="arm"
1238 armvfp_deps="arm"
1239 neon_deps="arm"
1240 vfpv3_deps="armvfp"
1241
1242 mmi_deps="mips"
1243
1244 altivec_deps="ppc"
1245 ppc4xx_deps="ppc"
1246
1247 vis_deps="sparc"
1248
1249 x86_64_suggest="cmov fast_cmov"
1250 amd3dnow_deps="mmx"
1251 amd3dnowext_deps="amd3dnow"
1252 mmx_deps="x86"
1253 mmx2_deps="mmx"
1254 sse_deps="mmx"
1255 ssse3_deps="sse"
1256 avx_deps="ssse3"
1257
1258 aligned_stack_if_any="ppc x86"
1259 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1260 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1261 fast_unaligned_if_any="armv6 ppc x86"
1262
1263 inline_asm_deps="!tms470"
1264 need_memalign="altivec neon sse"
1265
1266 symver_if_any="symver_asm_label symver_gnu_asm"
1267
1268 # subsystems
1269 dct_select="rdft"
1270 mdct_select="fft"
1271 rdft_select="fft"
1272 mpegaudiodsp_select="dct"
1273
1274 # decoders / encoders / hardware accelerators
1275 aac_decoder_select="mdct sinewin"
1276 aac_encoder_select="mdct sinewin"
1277 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1278 ac3_decoder_select="mdct ac3dsp ac3_parser"
1279 ac3_encoder_select="mdct ac3dsp"
1280 ac3_fixed_encoder_select="mdct ac3dsp"
1281 alac_encoder_select="lpc"
1282 amrnb_decoder_select="lsp"
1283 amrwb_decoder_select="lsp"
1284 atrac1_decoder_select="mdct sinewin"
1285 atrac3_decoder_select="mdct"
1286 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1287 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1288 cavs_decoder_select="golomb"
1289 cook_decoder_select="mdct sinewin"
1290 cscd_decoder_suggest="zlib"
1291 dca_decoder_select="mdct"
1292 dnxhd_encoder_select="aandct"
1293 dxa_decoder_select="zlib"
1294 eac3_decoder_select="ac3_decoder"
1295 eac3_encoder_select="mdct ac3dsp"
1296 eamad_decoder_select="aandct"
1297 eatgq_decoder_select="aandct"
1298 eatqi_decoder_select="aandct"
1299 ffv1_decoder_select="golomb"
1300 flac_decoder_select="golomb"
1301 flac_encoder_select="golomb lpc"
1302 flashsv_decoder_select="zlib"
1303 flashsv_encoder_select="zlib"
1304 flashsv2_decoder_select="zlib"
1305 flv_decoder_select="h263_decoder"
1306 flv_encoder_select="h263_encoder"
1307 fraps_decoder_select="huffman"
1308 h261_encoder_select="aandct"
1309 h263_decoder_select="h263_parser"
1310 h263_encoder_select="aandct"
1311 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1312 h263i_decoder_select="h263_decoder"
1313 h263p_encoder_select="h263_encoder"
1314 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1315 h264_dxva2_hwaccel_deps="dxva2api_h"
1316 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1317 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1318 h264_vda_hwaccel_select="vda h264_decoder"
1319 h264_vdpau_decoder_select="vdpau h264_decoder"
1320 imc_decoder_select="fft mdct sinewin"
1321 jpegls_decoder_select="golomb"
1322 jpegls_encoder_select="golomb"
1323 ljpeg_encoder_select="aandct"
1324 loco_decoder_select="golomb"
1325 mjpeg_encoder_select="aandct"
1326 mlp_decoder_select="mlp_parser"
1327 mp1_decoder_select="mpegaudiodsp"
1328 mp1float_decoder_select="mpegaudiodsp"
1329 mp2_decoder_select="mpegaudiodsp"
1330 mp2float_decoder_select="mpegaudiodsp"
1331 mp3_decoder_select="mpegaudiodsp"
1332 mp3adu_decoder_select="mpegaudiodsp"
1333 mp3adufloat_decoder_select="mpegaudiodsp"
1334 mp3float_decoder_select="mpegaudiodsp"
1335 mp3on4_decoder_select="mpegaudiodsp"
1336 mp3on4float_decoder_select="mpegaudiodsp"
1337 mpc7_decoder_select="mpegaudiodsp"
1338 mpc8_decoder_select="mpegaudiodsp"
1339 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1340 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1341 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1342 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1343 mpeg1video_encoder_select="aandct"
1344 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1345 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1346 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1347 mpeg2video_encoder_select="aandct"
1348 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1349 mpeg4_encoder_select="h263_encoder"
1350 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1351 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1352 msmpeg4v1_decoder_select="h263_decoder"
1353 msmpeg4v1_encoder_select="h263_encoder"
1354 msmpeg4v2_decoder_select="h263_decoder"
1355 msmpeg4v2_encoder_select="h263_encoder"
1356 msmpeg4v3_decoder_select="h263_decoder"
1357 msmpeg4v3_encoder_select="h263_encoder"
1358 nellymoser_decoder_select="mdct sinewin"
1359 nellymoser_encoder_select="mdct sinewin"
1360 png_decoder_select="zlib"
1361 png_encoder_select="zlib"
1362 qcelp_decoder_select="lsp"
1363 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1364 ra_144_encoder_select="lpc"
1365 rv10_decoder_select="h263_decoder"
1366 rv10_encoder_select="h263_encoder"
1367 rv20_decoder_select="h263_decoder"
1368 rv20_encoder_select="h263_encoder"
1369 rv30_decoder_select="golomb h264chroma h264pred"
1370 rv40_decoder_select="golomb h264chroma h264pred"
1371 shorten_decoder_select="golomb"
1372 sipr_decoder_select="lsp"
1373 snow_decoder_select="dwt"
1374 snow_encoder_select="aandct dwt"
1375 svq1_encoder_select="aandct"
1376 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1377 svq3_decoder_suggest="zlib"
1378 theora_decoder_select="vp3_decoder"
1379 tiff_decoder_suggest="zlib"
1380 tiff_encoder_suggest="zlib"
1381 truehd_decoder_select="mlp_decoder"
1382 tscc_decoder_select="zlib"
1383 twinvq_decoder_select="mdct lsp sinewin"
1384 vc1_decoder_select="h263_decoder h264chroma"
1385 vc1_dxva2_hwaccel_deps="dxva2api_h"
1386 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1387 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1388 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1389 vc1image_decoder_select="vc1_decoder"
1390 vorbis_decoder_select="mdct"
1391 vorbis_encoder_select="mdct"
1392 vp6_decoder_select="huffman"
1393 vp6a_decoder_select="vp6_decoder"
1394 vp6f_decoder_select="vp6_decoder"
1395 vp8_decoder_select="h264pred"
1396 wmapro_decoder_select="mdct sinewin"
1397 wmav1_decoder_select="mdct sinewin"
1398 wmav1_encoder_select="mdct sinewin"
1399 wmav2_decoder_select="mdct sinewin"
1400 wmav2_encoder_select="mdct sinewin"
1401 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1402 wmv1_decoder_select="h263_decoder"
1403 wmv1_encoder_select="h263_encoder"
1404 wmv2_decoder_select="h263_decoder"
1405 wmv2_encoder_select="h263_encoder"
1406 wmv3_decoder_select="vc1_decoder"
1407 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1408 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1409 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1410 wmv3image_decoder_select="wmv3_decoder"
1411 zerocodec_decoder_select="zlib"
1412 zlib_decoder_select="zlib"
1413 zlib_encoder_select="zlib"
1414 zmbv_decoder_select="zlib"
1415 zmbv_encoder_select="zlib"
1416
1417 vaapi_deps="va_va_h"
1418 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1419 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1420
1421 # parsers
1422 h264_parser_select="golomb h264chroma h264dsp h264pred"
1423
1424 # external libraries
1425 libdirac_decoder_deps="libdirac !libschroedinger"
1426 libfaac_encoder_deps="libfaac"
1427 libgsm_decoder_deps="libgsm"
1428 libgsm_encoder_deps="libgsm"
1429 libgsm_ms_decoder_deps="libgsm"
1430 libgsm_ms_encoder_deps="libgsm"
1431 libmp3lame_encoder_deps="libmp3lame"
1432 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1433 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1434 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1435 libopenjpeg_decoder_deps="libopenjpeg"
1436 libschroedinger_decoder_deps="libschroedinger"
1437 libschroedinger_encoder_deps="libschroedinger"
1438 libspeex_decoder_deps="libspeex"
1439 libspeex_encoder_deps="libspeex"
1440 libtheora_encoder_deps="libtheora"
1441 libvo_aacenc_encoder_deps="libvo_aacenc"
1442 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1443 libvorbis_encoder_deps="libvorbis"
1444 libvpx_decoder_deps="libvpx"
1445 libvpx_encoder_deps="libvpx"
1446 libx264_encoder_deps="libx264"
1447 libxavs_encoder_deps="libxavs"
1448 libxvid_encoder_deps="libxvid"
1449
1450 # demuxers / muxers
1451 ac3_demuxer_select="ac3_parser"
1452 asf_stream_muxer_select="asf_muxer"
1453 avisynth_demuxer_deps="avisynth"
1454 dirac_demuxer_select="dirac_parser"
1455 eac3_demuxer_select="ac3_parser"
1456 flac_demuxer_select="flac_parser"
1457 ipod_muxer_select="mov_muxer"
1458 libnut_demuxer_deps="libnut"
1459 libnut_muxer_deps="libnut"
1460 matroska_audio_muxer_select="matroska_muxer"
1461 matroska_demuxer_suggest="zlib bzlib"
1462 mov_demuxer_suggest="zlib"
1463 mp3_demuxer_select="mpegaudio_parser"
1464 mp4_muxer_select="mov_muxer"
1465 mpegtsraw_demuxer_select="mpegts_demuxer"
1466 mxf_d10_muxer_select="mxf_muxer"
1467 ogg_demuxer_select="golomb"
1468 psp_muxer_select="mov_muxer"
1469 rtp_demuxer_select="sdp_demuxer"
1470 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1471 rtsp_demuxer_select="http_protocol rtpdec"
1472 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1473 sap_demuxer_select="sdp_demuxer"
1474 sap_muxer_select="rtp_muxer rtp_protocol"
1475 sdp_demuxer_select="rtpdec"
1476 spdif_muxer_select="aac_parser"
1477 tg2_muxer_select="mov_muxer"
1478 tgp_muxer_select="mov_muxer"
1479 w64_demuxer_deps="wav_demuxer"
1480
1481 # indevs / outdevs
1482 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1483 alsa_outdev_deps="alsa_asoundlib_h"
1484 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1485 dv1394_indev_deps="dv1394 dv_demuxer"
1486 fbdev_indev_deps="linux_fb_h"
1487 jack_indev_deps="jack_jack_h"
1488 libcdio_indev_deps="libcdio"
1489 libdc1394_indev_deps="libdc1394"
1490 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1491 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1492 pulse_indev_deps="libpulse"
1493 sndio_indev_deps="sndio_h"
1494 sndio_outdev_deps="sndio_h"
1495 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1496 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1497 vfwcap_indev_extralibs="-lavicap32"
1498 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1499
1500 # protocols
1501 gopher_protocol_deps="network"
1502 httpproxy_protocol_deps="network"
1503 httpproxy_protocol_select="tcp_protocol"
1504 http_protocol_deps="network"
1505 http_protocol_select="tcp_protocol"
1506 https_protocol_select="tls_protocol"
1507 librtmp_protocol_deps="librtmp"
1508 librtmpe_protocol_deps="librtmp"
1509 librtmps_protocol_deps="librtmp"
1510 librtmpt_protocol_deps="librtmp"
1511 librtmpte_protocol_deps="librtmp"
1512 mmsh_protocol_select="http_protocol"
1513 mmst_protocol_deps="network"
1514 rtmp_protocol_deps="!librtmp_protocol"
1515 rtmp_protocol_select="tcp_protocol"
1516 rtp_protocol_select="udp_protocol"
1517 tcp_protocol_deps="network"
1518 tls_protocol_deps_any="openssl gnutls"
1519 tls_protocol_select="tcp_protocol"
1520 udp_protocol_deps="network"
1521
1522 # filters
1523 blackframe_filter_deps="gpl"
1524 boxblur_filter_deps="gpl"
1525 cropdetect_filter_deps="gpl"
1526 delogo_filter_deps="gpl"
1527 drawtext_filter_deps="libfreetype"
1528 frei0r_filter_deps="frei0r dlopen strtok_r"
1529 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1530 hqdn3d_filter_deps="gpl"
1531 ocv_filter_deps="libopencv"
1532 scale_filter_deps="swscale"
1533 yadif_filter_deps="gpl"
1534
1535 # libraries
1536 avdevice_deps="avcodec avformat"
1537 avformat_deps="avcodec"
1538
1539 # programs
1540 avconv_deps="avcodec avformat swscale"
1541 avplay_deps="avcodec avformat swscale sdl"
1542 avplay_select="rdft"
1543 avprobe_deps="avcodec avformat"
1544 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1545 avserver_extralibs='$ldl'
1546
1547 doc_deps="texi2html"
1548
1549 # tests
1550
1551 test_deps(){
1552     suf1=$1
1553     suf2=$2
1554     shift 2
1555     for v; do
1556         dep=${v%=*}
1557         tests=${v#*=}
1558         for name in ${tests}; do
1559             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1560         done
1561     done
1562 }
1563
1564 mxf_d10_test_deps="avfilter"
1565 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1566
1567 test_deps _encoder _decoder                                             \
1568     adpcm_ima_qt                                                        \
1569     adpcm_ima_wav                                                       \
1570     adpcm_ms                                                            \
1571     adpcm_swf                                                           \
1572     adpcm_yamaha=adpcm_yam                                              \
1573     alac                                                                \
1574     asv1                                                                \
1575     asv2                                                                \
1576     bmp                                                                 \
1577     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1578     dvvideo="dv dv_411 dv50"                                            \
1579     ffv1                                                                \
1580     flac                                                                \
1581     flashsv                                                             \
1582     flv                                                                 \
1583     adpcm_g726=g726                                                     \
1584     gif                                                                 \
1585     h261                                                                \
1586     h263="h263 h263p"                                                   \
1587     huffyuv                                                             \
1588     jpegls                                                              \
1589     mjpeg="jpg mjpeg ljpeg"                                             \
1590     mp2                                                                 \
1591     mpeg1video="mpeg mpeg1b"                                            \
1592     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1593     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1594     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1595     mpeg4="mpeg4thread error rc"                                        \
1596     msmpeg4v3=msmpeg4                                                   \
1597     msmpeg4v2                                                           \
1598     pbm=pbmpipe                                                         \
1599     pcx                                                                 \
1600     pgm="pgm pgmpipe"                                                   \
1601     png                                                                 \
1602     ppm="ppm ppmpipe"                                                   \
1603     rawvideo="rgb yuv"                                                  \
1604     roq                                                                 \
1605     rv10                                                                \
1606     rv20                                                                \
1607     sgi                                                                 \
1608     snow="snow snowll"                                                  \
1609     svq1                                                                \
1610     targa=tga                                                           \
1611     tiff                                                                \
1612     wmav1                                                               \
1613     wmav2                                                               \
1614     wmv1                                                                \
1615     wmv2                                                                \
1616
1617 test_deps _muxer _demuxer                                               \
1618     aiff                                                                \
1619     pcm_alaw=alaw                                                       \
1620     asf                                                                 \
1621     au                                                                  \
1622     avi                                                                 \
1623     dv=dv_fmt                                                           \
1624     ffm                                                                 \
1625     flv=flv_fmt                                                         \
1626     gxf                                                                 \
1627     matroska=mkv                                                        \
1628     mmf                                                                 \
1629     mov                                                                 \
1630     pcm_mulaw=mulaw                                                     \
1631     mxf="mxf mxf_d10"                                                   \
1632     nut                                                                 \
1633     ogg                                                                 \
1634     rawvideo=pixfmt                                                     \
1635     rm                                                                  \
1636     swf                                                                 \
1637     mpegts=ts                                                           \
1638     voc                                                                 \
1639     wav                                                                 \
1640     yuv4mpegpipe=yuv4mpeg                                               \
1641
1642 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1643 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1644
1645 # default parameters
1646
1647 logfile="config.log"
1648
1649 # installation paths
1650 prefix_default="/usr/local"
1651 bindir_default='${prefix}/bin'
1652 datadir_default='${prefix}/share/avconv'
1653 incdir_default='${prefix}/include'
1654 libdir_default='${prefix}/lib'
1655 mandir_default='${prefix}/share/man'
1656 shlibdir_default="$libdir_default"
1657
1658 # toolchain
1659 ar_default="ar"
1660 cc_default="gcc"
1661 cc_version=\"unknown\"
1662 host_cc_default="gcc"
1663 ln_s="ln -sf"
1664 nm_default="nm"
1665 objformat="elf"
1666 pkg_config_default=pkg-config
1667 ranlib="ranlib"
1668 yasmexe="yasm"
1669
1670 nm_opts='-g'
1671 nogas=":"
1672
1673 # machine
1674 arch_default=$(uname -m)
1675 cpu="generic"
1676
1677 # OS
1678 target_os_default=$(tolower $(uname -s))
1679 host_os=$target_os_default
1680
1681 # configurable options
1682 enable $PROGRAM_LIST
1683
1684 enable avcodec
1685 enable avdevice
1686 enable avfilter
1687 enable avformat
1688 enable avutil
1689 enable swscale
1690
1691 enable asm
1692 enable debug
1693 enable doc
1694 enable fastdiv
1695 enable network
1696 enable optimizations
1697 enable safe_bitstream_reader
1698 enable static
1699 enable swscale_alpha
1700
1701 # build settings
1702 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1703 AVSERVERLDFLAGS=-Wl,-E
1704 LIBPREF="lib"
1705 LIBSUF=".a"
1706 FULLNAME='$(NAME)$(BUILDSUF)'
1707 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1708 SLIBPREF="lib"
1709 SLIBSUF=".so"
1710 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1711 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1712 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1713 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1714 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1715 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1716
1717 AS_O='-o $@'
1718 CC_O='-o $@'
1719
1720 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1721 host_libs='-lm'
1722
1723 target_path='$(CURDIR)'
1724
1725 # since the object filename is not given with the -MM flag, the compiler
1726 # is only able to print the basename, and we must add the path ourselves
1727 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1728 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1729
1730 # find source path
1731 if test -f configure; then
1732     source_path=.
1733 else
1734     source_path=$(cd $(dirname "$0"); pwd)
1735     echo "$source_path" | grep -q '[[:blank:]]' &&
1736         die "Out of tree builds are impossible with whitespace in source path."
1737     test -e "$source_path/config.h" &&
1738         die "Out of tree builds are impossible with config.h in source dir."
1739 fi
1740
1741 for v in "$@"; do
1742     r=${v#*=}
1743     l=${v%"$r"}
1744     r=$(sh_quote "$r")
1745     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1746 done
1747
1748 find_things(){
1749     thing=$1
1750     pattern=$2
1751     file=$source_path/$3
1752     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1753 }
1754
1755 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1756 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1757 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1758 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1759 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1760 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1761 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1762 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1763 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1764 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1765 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1766
1767 ALL_COMPONENTS="
1768     $BSF_LIST
1769     $DECODER_LIST
1770     $DEMUXER_LIST
1771     $ENCODER_LIST
1772     $FILTER_LIST
1773     $HWACCEL_LIST
1774     $INDEV_LIST
1775     $MUXER_LIST
1776     $OUTDEV_LIST
1777     $PARSER_LIST
1778     $PROTOCOL_LIST
1779 "
1780
1781 find_tests(){
1782     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1783 }
1784
1785 ACODEC_TESTS=$(find_tests acodec)
1786 VCODEC_TESTS=$(find_tests vsynth1)
1787 LAVF_TESTS=$(find_tests lavf)
1788 LAVFI_TESTS=$(find_tests lavfi)
1789 SEEK_TESTS=$(find_tests seek seek_)
1790
1791 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1792
1793 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1794
1795 for n in $COMPONENT_LIST; do
1796     v=$(toupper ${n%s})_LIST
1797     eval enable \$$v
1798     eval ${n}_if_any="\$$v"
1799 done
1800
1801 enable $ARCH_EXT_LIST $ALL_TESTS
1802
1803 die_unknown(){
1804     echo "Unknown option \"$1\"."
1805     echo "See $0 --help for available options."
1806     exit 1
1807 }
1808
1809 show_list() {
1810     suffix=_$1
1811     shift
1812     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1813     exit 0
1814 }
1815
1816 for opt do
1817     optval="${opt#*=}"
1818     case "$opt" in
1819     --extra-ldflags=*) add_ldflags $optval
1820     ;;
1821     --extra-libs=*) add_extralibs $optval
1822     ;;
1823     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1824     ;;
1825     --enable-debug=*) debuglevel="$optval"
1826     ;;
1827     --disable-everything)
1828     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1829     ;;
1830     --enable-*=*|--disable-*=*)
1831     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1832     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1833     eval list=\$$(toupper $thing)_LIST
1834     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1835     $action $(filter "$name" $list)
1836     ;;
1837     --enable-?*|--disable-?*)
1838     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1839     if is_in $option $COMPONENT_LIST; then
1840         test $action = disable && action=unset
1841         eval $action \$$(toupper ${option%s})_LIST
1842     elif is_in $option $CMDLINE_SELECT; then
1843         $action $option
1844     else
1845         die_unknown $opt
1846     fi
1847     ;;
1848     --list-*)
1849         NAME="${opt#--list-}"
1850         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1851         NAME=${NAME%s}
1852         eval show_list $NAME \$$(toupper $NAME)_LIST
1853     ;;
1854     --help|-h) show_help
1855     ;;
1856     *)
1857     optname="${opt%%=*}"
1858     optname="${optname#--}"
1859     optname=$(echo "$optname" | sed 's/-/_/g')
1860     if is_in $optname $CMDLINE_SET; then
1861         eval $optname='$optval'
1862     elif is_in $optname $CMDLINE_APPEND; then
1863         append $optname "$optval"
1864     else
1865          die_unknown $opt
1866     fi
1867     ;;
1868     esac
1869 done
1870
1871 disabled logging && logfile=/dev/null
1872
1873 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1874 set >> $logfile
1875
1876 test -n "$cross_prefix" && enable cross_compile
1877
1878 if enabled cross_compile; then
1879     test -n "$arch" && test -n "$target_os" ||
1880         die "Must specify target arch and OS when cross-compiling"
1881 fi
1882
1883 set_default arch target_os
1884
1885 ar_default="${cross_prefix}${ar_default}"
1886 cc_default="${cross_prefix}${cc_default}"
1887 nm_default="${cross_prefix}${nm_default}"
1888 pkg_config_default="${cross_prefix}${pkg_config_default}"
1889 ranlib="${cross_prefix}${ranlib}"
1890
1891 sysinclude_default="${sysroot}/usr/include"
1892
1893 set_default cc nm pkg_config sysinclude
1894 enabled cross_compile || host_cc_default=$cc
1895 set_default host_cc
1896
1897 if ! $pkg_config --version >/dev/null 2>&1; then
1898     warn "$pkg_config not found, library detection may fail."
1899     pkg_config=false
1900 fi
1901
1902 exesuf() {
1903     case $1 in
1904         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1905     esac
1906 }
1907
1908 EXESUF=$(exesuf $target_os)
1909 HOSTEXESUF=$(exesuf $host_os)
1910
1911 # set temporary file name
1912 : ${TMPDIR:=$TEMPDIR}
1913 : ${TMPDIR:=$TMP}
1914 : ${TMPDIR:=/tmp}
1915
1916 if ! check_cmd mktemp -u XXXXXX; then
1917     # simple replacement for missing mktemp
1918     # NOT SAFE FOR GENERAL USE
1919     mktemp(){
1920         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1921     }
1922 fi
1923
1924 tmpfile(){
1925     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1926         (set -C; exec > $tmp) 2>/dev/null ||
1927         die "Unable to create temporary file in $TMPDIR."
1928     append TMPFILES $tmp
1929     eval $1=$tmp
1930 }
1931
1932 trap 'rm -f -- $TMPFILES' EXIT
1933
1934 tmpfile TMPASM .asm
1935 tmpfile TMPC   .c
1936 tmpfile TMPE   $EXESUF
1937 tmpfile TMPH   .h
1938 tmpfile TMPO   .o
1939 tmpfile TMPS   .S
1940 tmpfile TMPSH  .sh
1941 tmpfile TMPV   .ver
1942
1943 unset -f mktemp
1944
1945 chmod +x $TMPE
1946
1947 # make sure we can execute files in $TMPDIR
1948 cat > $TMPSH 2>> $logfile <<EOF
1949 #! /bin/sh
1950 EOF
1951 chmod +x $TMPSH >> $logfile 2>&1
1952 if ! $TMPSH >> $logfile 2>&1; then
1953     cat <<EOF
1954 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1955 variable to another directory and make sure that it is not mounted noexec.
1956 EOF
1957     die "Sanity test failed."
1958 fi
1959
1960 filter_asflags=echo
1961 filter_cflags=echo
1962 filter_cppflags=echo
1963
1964 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1965     cc_type=llvm_gcc
1966     cc_version=__VERSION__
1967     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1968     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1969     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1970     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973 elif $cc -v 2>&1 | grep -qi ^gcc; then
1974     cc_type=gcc
1975     cc_version=__VERSION__
1976     gcc_version=$($cc --version | head -n1)
1977     gcc_basever=$($cc -dumpversion)
1978     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1979     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1980     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1981     if ! $cc -dumpversion | grep -q '^2\.'; then
1982         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1983         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1984     fi
1985     speed_cflags='-O3'
1986     size_cflags='-Os'
1987 elif $cc --version 2>/dev/null | grep -q Intel; then
1988     cc_type=icc
1989     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1990     cc_ident=$($cc --version | head -n1)
1991     icc_version=$($cc -dumpversion)
1992     CC_DEPFLAGS='-MMD'
1993     AS_DEPFLAGS='-MMD'
1994     speed_cflags='-O3'
1995     size_cflags='-Os'
1996     noopt_cflags='-O1'
1997 elif $cc -v 2>&1 | grep -q xlc; then
1998     cc_type=xlc
1999     cc_version="AV_STRINGIFY(__IBMC__)"
2000     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2001     speed_cflags='-O5'
2002     size_cflags='-O5 -qcompact'
2003 elif $cc -V 2>/dev/null | grep -q Compaq; then
2004     cc_type=ccc
2005     cc_version="AV_STRINGIFY(__DECC_VER)"
2006     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2007     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2008     debuglevel=3
2009     add_ldflags -Wl,-z,now # calls to libots crash without this
2010     speed_cflags='-fast'
2011     size_cflags='-O1'
2012 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2013     test -d "$sysroot" || die "No valid sysroot specified."
2014     cc_type=armcc
2015     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2016     cc_ident=$($cc --vsn | head -n1)
2017     armcc_conf="$PWD/armcc.conf"
2018     $cc --arm_linux_configure                 \
2019         --arm_linux_config_file="$armcc_conf" \
2020         --configure_sysroot="$sysroot"        \
2021         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2022         die "Error creating armcc configuration file."
2023     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2024     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2025     as_default="${cross_prefix}gcc"
2026     CC_DEPFLAGS='-MMD'
2027     AS_DEPFLAGS='-MMD'
2028     speed_cflags='-O3'
2029     size_cflags='-Os'
2030     filter_asflags="filter_out -W${armcc_opt}*"
2031 elif $cc -version 2>/dev/null | grep -q TMS470; then
2032     cc_type=tms470
2033     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2034     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2035     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2036     CC_O='-fr=$(@D)'
2037     as_default="${cross_prefix}gcc"
2038     ld_default="${cross_prefix}gcc"
2039     TMPO=$(basename $TMPC .c).o
2040     append TMPFILES $TMPO
2041     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2042     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2043     AS_DEPFLAGS='-MMD'
2044     speed_cflags='-O3 -mf=5'
2045     size_cflags='-O3 -mf=2'
2046     filter_cflags=tms470_flags
2047     tms470_flags(){
2048         for flag; do
2049             case $flag in
2050                 -march=*|-mcpu=*)
2051                     case "${flag#*=}" in
2052                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2053                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2054                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2055                         armv6*|arm11*)          echo -mv=6   ;;
2056                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2057                                                 echo -mv=5e  ;;
2058                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2059                     esac
2060                     ;;
2061                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2062                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2063                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2064                 -msoft-float)   echo --float_support=vfplib       ;;
2065                 -O[0-3]|-mf=*)  echo $flag                        ;;
2066                 -g)             echo -g -mn                       ;;
2067                 -pds=*)         echo $flag                        ;;
2068             esac
2069         done
2070     }
2071 elif $cc -v 2>&1 | grep -q clang; then
2072     cc_type=clang
2073     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2074         cc_version=__clang_version__ || cc_version=__VERSION__
2075     cc_ident=$($cc --version | head -n1)
2076     CC_DEPFLAGS='-MMD'
2077     AS_DEPFLAGS='-MMD'
2078     speed_cflags='-O3'
2079     size_cflags='-Os'
2080 elif $cc -V 2>&1 | grep -q Sun; then
2081     cc_type=suncc
2082     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2083     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2084     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2085     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2086     add_ldflags -xc99
2087     speed_cflags='-O5'
2088     size_cflags='-O5 -xspace'
2089     filter_cflags=suncc_flags
2090     suncc_flags(){
2091         for flag; do
2092             case $flag in
2093                 -march=*|-mcpu=*)
2094                     case "${flag#*=}" in
2095                         native)                   echo -xtarget=native       ;;
2096                         v9|niagara)               echo -xarch=sparc          ;;
2097                         ultrasparc)               echo -xarch=sparcvis       ;;
2098                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2099                         i586|pentium)             echo -xchip=pentium        ;;
2100                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2101                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2102                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2103                         pentium4*)          echo -xtarget=pentium4           ;;
2104                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2105                         *-sse3)             echo -xarch=sse3                 ;;
2106                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2107                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2108                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2109                         k8|opteron|athlon64|athlon-fx)
2110                                                   echo -xarch=sse2a          ;;
2111                         athlon*)                  echo -xarch=pentium_proa   ;;
2112                     esac
2113                     ;;
2114                 -std=c99)             echo -xc99              ;;
2115                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2116                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2117                 -W*,*)                echo $flag              ;;
2118                 -f*-*|-W*)                                    ;;
2119                 *)                    echo $flag              ;;
2120             esac
2121         done
2122     }
2123 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2124     cc_type=pathscale
2125     cc_version=__PATHSCALE__
2126     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2127     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2128     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     speed_cflags='-O2'
2130     size_cflags='-Os'
2131     filter_cflags='filter_out -Wdisabled-optimization'
2132 elif $cc -v 2>&1 | grep -q Open64; then
2133     cc_type=open64
2134     cc_version=__OPEN64__
2135     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2136     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2137     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2138     speed_cflags='-O2'
2139     size_cflags='-Os'
2140     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2141 fi
2142
2143 test -n "$cc_type" && enable $cc_type ||
2144     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2145
2146 : ${as_default:=$cc}
2147 : ${dep_cc_default:=$cc}
2148 : ${ld_default:=$cc}
2149 set_default ar as dep_cc ld
2150
2151 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2152 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2153
2154 add_cflags $extra_cflags
2155 add_asflags $extra_cflags
2156
2157 if test -n "$sysroot"; then
2158     case "$cc_type" in
2159         gcc|llvm_gcc|clang)
2160             add_cppflags --sysroot="$sysroot"
2161             add_ldflags --sysroot="$sysroot"
2162         ;;
2163         tms470)
2164             add_cppflags -I"$sysinclude"
2165             add_ldflags  --sysroot="$sysroot"
2166         ;;
2167     esac
2168 fi
2169
2170 if test "$cpu" = host; then
2171     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2172
2173     case "$cc_type" in
2174         gcc|llvm_gcc)
2175             check_native(){
2176                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2177                 sed -n "/cc1.*$1=/{
2178                             s/.*$1=\\([^ ]*\\).*/\\1/
2179                             p
2180                             q
2181                         }" $TMPE
2182             }
2183             cpu=$(check_native -march || check_native -mcpu)
2184         ;;
2185     esac
2186
2187     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2188 fi
2189
2190 # Deal with common $arch aliases
2191 case "$arch" in
2192     arm*)
2193         arch="arm"
2194     ;;
2195     mips|mipsel|IP*)
2196         arch="mips"
2197     ;;
2198     mips64*)
2199         arch="mips"
2200         subarch="mips64"
2201     ;;
2202     parisc|hppa)
2203         arch="parisc"
2204     ;;
2205     parisc64|hppa64)
2206         arch="parisc"
2207         subarch="parisc64"
2208     ;;
2209     "Power Macintosh"|ppc|powerpc)
2210         arch="ppc"
2211     ;;
2212     ppc64|powerpc64)
2213         arch="ppc"
2214         subarch="ppc64"
2215     ;;
2216     s390|s390x)
2217         arch="s390"
2218     ;;
2219     sh4|sh)
2220         arch="sh4"
2221     ;;
2222     sun4u|sparc64)
2223         arch="sparc"
2224         subarch="sparc64"
2225     ;;
2226     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2227         arch="x86"
2228     ;;
2229 esac
2230
2231 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2232 enable $arch
2233
2234 # Add processor-specific flags
2235 if test "$cpu" = generic; then
2236     : do nothing
2237 elif enabled ppc; then
2238
2239     case $(tolower $cpu) in
2240         601|ppc601|powerpc601)
2241             cpuflags="-mcpu=601"
2242             disable altivec
2243         ;;
2244         603*|ppc603*|powerpc603*)
2245             cpuflags="-mcpu=603"
2246             disable altivec
2247         ;;
2248         604*|ppc604*|powerpc604*)
2249             cpuflags="-mcpu=604"
2250             disable altivec
2251         ;;
2252         g3|75*|ppc75*|powerpc75*)
2253             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2254             disable altivec
2255         ;;
2256         g4|745*|ppc745*|powerpc745*)
2257             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2258         ;;
2259         74*|ppc74*|powerpc74*)
2260             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2261         ;;
2262         g5|970|ppc970|powerpc970|power4*)
2263             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2264         ;;
2265         cell)
2266             cpuflags="-mcpu=cell"
2267             enable ldbrx
2268         ;;
2269         e500v2)
2270             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2271             disable altivec
2272         ;;
2273         e500)
2274             cpuflags="-mcpu=8540 -mhard-float"
2275             disable altivec
2276         ;;
2277     esac
2278
2279 elif enabled x86; then
2280
2281     case $cpu in
2282         i[345]86|pentium)
2283             cpuflags="-march=$cpu"
2284             disable mmx
2285         ;;
2286         # targets that do NOT support conditional mov (cmov)
2287         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2288             cpuflags="-march=$cpu"
2289             disable cmov
2290         ;;
2291         # targets that do support conditional mov (cmov)
2292         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2293             cpuflags="-march=$cpu"
2294             enable cmov
2295             enable fast_cmov
2296         ;;
2297         # targets that do support conditional mov but on which it's slow
2298         pentium4|pentium4m|prescott|nocona)
2299             cpuflags="-march=$cpu"
2300             enable cmov
2301             disable fast_cmov
2302         ;;
2303     esac
2304
2305 elif enabled sparc; then
2306
2307     case $cpu in
2308         niagara)
2309             cpuflags="-mcpu=$cpu"
2310             disable vis
2311         ;;
2312         sparc64)
2313             cpuflags="-mcpu=v9"
2314         ;;
2315     esac
2316
2317 elif enabled arm; then
2318
2319     case $cpu in
2320         armv*)
2321             cpuflags="-march=$cpu"
2322             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2323         ;;
2324         *)
2325             cpuflags="-mcpu=$cpu"
2326             case $cpu in
2327                 cortex-a*)                               subarch=armv7a  ;;
2328                 cortex-r*)                               subarch=armv7r  ;;
2329                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2330                 arm11*)                                  subarch=armv6   ;;
2331                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2332                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2333             esac
2334         ;;
2335     esac
2336
2337 elif enabled alpha; then
2338
2339     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2340
2341 elif enabled bfin; then
2342
2343     cpuflags="-mcpu=$cpu"
2344
2345 elif enabled mips; then
2346
2347     cpuflags="-march=$cpu"
2348
2349 elif enabled avr32; then
2350
2351     case $cpu in
2352         ap7[02]0[0-2])
2353             subarch="avr32_ap"
2354             cpuflags="-mpart=$cpu"
2355         ;;
2356         ap)
2357             subarch="avr32_ap"
2358             cpuflags="-march=$cpu"
2359         ;;
2360         uc3[ab]*)
2361             subarch="avr32_uc"
2362             cpuflags="-mcpu=$cpu"
2363         ;;
2364         uc)
2365             subarch="avr32_uc"
2366             cpuflags="-march=$cpu"
2367         ;;
2368     esac
2369
2370 fi
2371
2372 add_cflags $cpuflags
2373 add_asflags $cpuflags
2374
2375 # compiler sanity check
2376 check_exec <<EOF
2377 int main(void){ return 0; }
2378 EOF
2379 if test "$?" != 0; then
2380     echo "$cc is unable to create an executable file."
2381     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2382         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2383         echo "Only do this if you know what cross compiling means."
2384     fi
2385     die "C compiler test failed."
2386 fi
2387
2388 add_cppflags -D_ISOC99_SOURCE
2389 check_cflags -std=c99
2390 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2391 #include <stdlib.h>
2392 EOF
2393 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2394 #include <stdlib.h>
2395 EOF
2396
2397 check_host_cflags -std=c99
2398 check_host_cflags -Wall
2399
2400 case "$arch" in
2401     alpha|ia64|mips|parisc|sparc)
2402         spic=$shared
2403     ;;
2404     x86)
2405         subarch="x86_32"
2406         check_cc <<EOF && subarch="x86_64"
2407         int test[(int)sizeof(char*) - 7];
2408 EOF
2409         if test "$subarch" = "x86_64"; then
2410             spic=$shared
2411         fi
2412     ;;
2413 esac
2414
2415 enable $subarch
2416 enabled spic && enable pic
2417
2418 # OS specific
2419 case $target_os in
2420     haiku)
2421         prefix_default="/boot/common"
2422         network_extralibs="-lnetwork"
2423         host_libs=
2424         ;;
2425     sunos)
2426         AVSERVERLDFLAGS=""
2427         SHFLAGS='-shared -Wl,-h,$$(@F)'
2428         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2429         network_extralibs="-lsocket -lnsl"
2430         add_cppflags -D__EXTENSIONS__
2431         # When using suncc to build, the Solaris linker will mark
2432         # an executable with each instruction set encountered by
2433         # the Solaris assembler.  As our libraries contain their own
2434         # guards for processor-specific code, instead suppress
2435         # generation of the HWCAPS ELF section on Solaris x86 only.
2436         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2437         nm_opts='-P -g'
2438         ;;
2439     netbsd)
2440         disable symver
2441         oss_indev_extralibs="-lossaudio"
2442         oss_outdev_extralibs="-lossaudio"
2443         ;;
2444     openbsd)
2445         enable malloc_aligned
2446         # On OpenBSD 4.5. the compiler does not use PIC unless
2447         # explicitly using -fPIC. Libav builds fine without PIC,
2448         # however the generated executable will not do anything
2449         # (simply quits with exit-code 1, no crash, no output).
2450         # Thus explicitly enable PIC here.
2451         enable pic
2452         disable symver
2453         SHFLAGS='-shared'
2454         oss_indev_extralibs="-lossaudio"
2455         oss_outdev_extralibs="-lossaudio"
2456         ;;
2457     dragonfly)
2458         enable malloc_aligned
2459         disable symver
2460         ;;
2461     freebsd)
2462         enable malloc_aligned
2463         ;;
2464     bsd/os)
2465         add_extralibs -lpoll -lgnugetopt
2466         ;;
2467     darwin)
2468         enable malloc_aligned
2469         gas="gas-preprocessor.pl $cc"
2470         enabled ppc && add_asflags -force_cpusubtype_ALL
2471         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2472         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2473         add_ldflags -Wl,-dynamic,-search_paths_first
2474         SLIBSUF=".dylib"
2475         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2476         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2477         AVSERVERLDFLAGS=-Wl,-bind_at_load
2478         objformat="macho"
2479         enabled x86_64 && objformat="macho64"
2480         enabled_any pic shared ||
2481             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2482         ;;
2483     mingw32*)
2484         if test $target_os = "mingw32ce"; then
2485             disable network
2486         else
2487             target_os=mingw32
2488         fi
2489         LIBTARGET=i386
2490         if enabled x86_64; then
2491             enable malloc_aligned
2492             LIBTARGET="i386:x86-64"
2493         elif enabled arm; then
2494             LIBTARGET=arm-wince
2495         fi
2496         shlibdir_default="$bindir_default"
2497         SLIBPREF=""
2498         SLIBSUF=".dll"
2499         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2500         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2501         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2502         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2503         SLIB_INSTALL_LINKS=
2504         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2505         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2506         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'
2507         objformat="win32"
2508         dlltool="${cross_prefix}dlltool"
2509         enable dos_paths
2510         check_cflags -fno-common
2511         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2512                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2513                 die "ERROR: MinGW runtime version must be >= 3.15."
2514         add_cppflags -U__STRICT_ANSI__
2515         ;;
2516     cygwin*)
2517         target_os=cygwin
2518         shlibdir_default="$bindir_default"
2519         SLIBPREF="cyg"
2520         SLIBSUF=".dll"
2521         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2522         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2523         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2524         objformat="win32"
2525         enable dos_paths
2526         check_cflags -fno-common
2527         add_cppflags -U__STRICT_ANSI__
2528         ;;
2529     *-dos|freedos|opendos)
2530         network_extralibs="-lsocket"
2531         objformat="coff"
2532         enable dos_paths
2533         add_cppflags -U__STRICT_ANSI__
2534         ;;
2535     linux)
2536         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2537         enable dv1394
2538         ;;
2539     irix*)
2540         target_os=irix
2541         ranlib="echo ignoring ranlib"
2542         ;;
2543     os/2*)
2544         ln_s="cp -f"
2545         objformat="aout"
2546         add_cppflags -D_GNU_SOURCE
2547         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2548         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2549         AVSERVERLDFLAGS=""
2550         LIBSUF="_s.a"
2551         SLIBPREF=""
2552         SLIBSUF=".dll"
2553         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2554         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2555         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2556           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2557           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2558           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2559           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2560           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2561         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2562           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2563         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2564         enable dos_paths
2565         ;;
2566     gnu/kfreebsd)
2567         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2568         ;;
2569     gnu)
2570         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2571         ;;
2572     qnx)
2573         add_cppflags -D_QNX_SOURCE
2574         network_extralibs="-lsocket"
2575         ;;
2576     symbian)
2577         SLIBSUF=".dll"
2578         enable dos_paths
2579         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2580         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2581         add_ldflags -Wl,--target1-abs,--no-undefined \
2582                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2583                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2584         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2585                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2586                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2587         ;;
2588     none)
2589         ;;
2590     *)
2591         die "Unknown OS '$target_os'."
2592         ;;
2593 esac
2594
2595 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2596
2597 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2598
2599 set_default $PATHS_LIST
2600
2601 # we need to build at least one lib type
2602 if ! enabled_any static shared; then
2603     cat <<EOF
2604 At least one library type must be built.
2605 Specify --enable-static to build the static libraries or --enable-shared to
2606 build the shared libraries as well. To only build the shared libraries specify
2607 --disable-static in addition to --enable-shared.
2608 EOF
2609     exit 1;
2610 fi
2611
2612 die_license_disabled() {
2613     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2614 }
2615
2616 die_license_disabled gpl libcdio
2617 die_license_disabled gpl libx264
2618 die_license_disabled gpl libxavs
2619 die_license_disabled gpl libxvid
2620 die_license_disabled gpl x11grab
2621
2622 die_license_disabled nonfree libfaac
2623 die_license_disabled nonfree openssl
2624
2625 die_license_disabled version3 libopencore_amrnb
2626 die_license_disabled version3 libopencore_amrwb
2627 die_license_disabled version3 libvo_aacenc
2628 die_license_disabled version3 libvo_amrwbenc
2629
2630 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2631
2632 disabled optimizations || check_cflags -fomit-frame-pointer
2633
2634 enable_pic() {
2635     enable pic
2636     add_cppflags -DPIC
2637     add_cflags   -fPIC
2638     add_asflags  -fPIC
2639 }
2640
2641 enabled pic && enable_pic
2642
2643 check_cc <<EOF || die "Symbol mangling check failed."
2644 int ff_extern;
2645 EOF
2646 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2647 extern_prefix=${sym%%ff_extern*}
2648
2649 check_cc <<EOF && enable inline_asm
2650 void foo(void) { __asm__ volatile ("" ::); }
2651 EOF
2652
2653 _restrict=
2654 for restrict_keyword in restrict __restrict__ __restrict; do
2655     check_cc <<EOF && _restrict=$restrict_keyword && break
2656 void foo(char * $restrict_keyword p);
2657 EOF
2658 done
2659
2660 check_cc <<EOF && enable attribute_packed
2661 struct { int x; } __attribute__((packed)) x;
2662 EOF
2663
2664 check_cc <<EOF && enable attribute_may_alias
2665 union { int x; } __attribute__((may_alias)) x;
2666 EOF
2667
2668 check_cc <<EOF || die "endian test failed"
2669 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2670 EOF
2671 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2672
2673 if enabled alpha; then
2674
2675     check_cflags -mieee
2676
2677 elif enabled arm; then
2678
2679     enabled thumb && check_cflags -mthumb || check_cflags -marm
2680     nogas=die
2681
2682     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2683         enable vfp_args
2684     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2685         case "${cross_prefix:-$cc}" in
2686             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2687             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2688 __asm__ (".eabi_attribute 28, 1");
2689 int main(void) { return 0; }
2690 EOF
2691         esac
2692         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2693     fi
2694
2695     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2696     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2697     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2698     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2699     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2700     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2701
2702     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2703
2704     enabled_all armv6t2 shared !pic && enable_pic
2705
2706 elif enabled mips; then
2707
2708     check_asm loongson '"dmult.g $1, $2, $3"'
2709     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2710
2711 elif enabled ppc; then
2712
2713     enable local_aligned_8 local_aligned_16
2714
2715     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2716     check_asm ibm_asm   '"add 0, 0, 0"'
2717     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2718     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2719
2720     # AltiVec flags: The FSF version of GCC differs from the Apple version
2721     if enabled altivec; then
2722         nogas=warn
2723         check_cflags -maltivec -mabi=altivec &&
2724         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2725         check_cflags -faltivec
2726
2727         # check if our compiler supports Motorola AltiVec C API
2728         check_cc <<EOF || disable altivec
2729 $inc_altivec_h
2730 int main(void) {
2731     vector signed int v1, v2, v3;
2732     v1 = vec_add(v2,v3);
2733     return 0;
2734 }
2735 EOF
2736
2737         # check if our compiler supports braces for vector declarations
2738         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2739 $inc_altivec_h
2740 int main (void) { (vector int) {1}; return 0; }
2741 EOF
2742     fi
2743
2744 elif enabled sparc; then
2745
2746     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2747         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2748
2749 elif enabled x86; then
2750
2751     enable local_aligned_8 local_aligned_16
2752
2753     # check whether EBP is available on x86
2754     # As 'i' is stored on the stack, this program will crash
2755     # if the base pointer is used to access it because the
2756     # base pointer is cleared in the inline assembly code.
2757     check_exec_crash <<EOF && enable ebp_available
2758     volatile int i=0;
2759     __asm__ volatile (
2760         "xorl %%ebp, %%ebp"
2761     ::: "%ebp");
2762     return i;
2763 EOF
2764
2765     # check whether EBX is available on x86
2766     check_asm ebx_available '""::"b"(0)' &&
2767         check_asm ebx_available '"":::"%ebx"'
2768
2769     # check whether xmm clobbers are supported
2770     check_asm xmm_clobbers '"":::"%xmm0"'
2771
2772     # check whether binutils is new enough to compile SSSE3/MMX2
2773     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2774     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2775
2776     if ! disabled_any asm mmx yasm; then
2777         if check_cmd $yasmexe --version; then
2778             enabled x86_64 && yasm_extra="-m amd64"
2779             yasm_debug="-g dwarf2"
2780         elif check_cmd nasm -v; then
2781             yasmexe=nasm
2782             yasm_debug="-g -F dwarf"
2783             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2784         fi
2785
2786         YASMFLAGS="-f $objformat $yasm_extra"
2787         enabled pic               && append YASMFLAGS "-DPIC"
2788         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2789         case "$objformat" in
2790             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2791         esac
2792
2793         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2794             die "yasm not found, use --disable-yasm for a crippled build"
2795         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2796     fi
2797
2798     case "$cpu" in
2799         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2800             disable fast_clz
2801         ;;
2802     esac
2803
2804 fi
2805
2806 if enabled asm; then
2807     as=${gas:=$as}
2808     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2809         $nogas "GNU assembler not found, install gas-preprocessor"
2810 fi
2811
2812 check_ldflags -Wl,--as-needed
2813
2814 if check_func dlopen; then
2815     ldl=
2816 elif check_func dlopen -ldl; then
2817     ldl=-ldl
2818 fi
2819
2820 if enabled network; then
2821     check_type "sys/types.h sys/socket.h" socklen_t
2822     check_type netdb.h "struct addrinfo"
2823     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2824     check_type netinet/in.h "struct sockaddr_in6"
2825     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2826     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2827     # Prefer arpa/inet.h over winsock2
2828     if check_header arpa/inet.h ; then
2829         check_func closesocket
2830     elif check_header winsock2.h ; then
2831         check_func_headers winsock2.h closesocket -lws2 && \
2832             network_extralibs="-lws2" || \
2833         { check_func_headers winsock2.h closesocket -lws2_32 && \
2834             network_extralibs="-lws2_32"; }
2835         check_type ws2tcpip.h socklen_t
2836         check_type ws2tcpip.h "struct addrinfo"
2837         check_type ws2tcpip.h "struct ipv6_mreq"
2838         check_type ws2tcpip.h "struct sockaddr_in6"
2839         check_type ws2tcpip.h "struct sockaddr_storage"
2840         check_struct winsock2.h "struct sockaddr" sa_len
2841     else
2842         disable network
2843     fi
2844 fi
2845
2846 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2847 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2848
2849 check_func  fcntl
2850 check_func  fork
2851 check_func  getaddrinfo $network_extralibs
2852 check_func  gethrtime
2853 check_func  getrusage
2854 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2855 check_func  inet_aton $network_extralibs
2856 check_func  isatty
2857 check_func  localtime_r
2858 check_func  ${malloc_prefix}memalign            && enable memalign
2859 check_func  mkstemp
2860 check_func  mmap
2861 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2862 check_func  setrlimit
2863 check_func  strerror_r
2864 check_func  strptime
2865 check_func  strtok_r
2866 check_func  sched_getaffinity
2867 check_func  sysconf
2868 check_func  sysctl
2869 check_func_headers io.h setmode
2870 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2871 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2872 check_func_headers windows.h GetProcessAffinityMask
2873 check_func_headers windows.h GetProcessTimes
2874 check_func_headers windows.h MapViewOfFile
2875 check_func_headers windows.h VirtualAlloc
2876
2877 check_header dlfcn.h
2878 check_header dxva2api.h
2879 check_header malloc.h
2880 check_header poll.h
2881 check_header sys/mman.h
2882 check_header sys/param.h
2883 check_header sys/resource.h
2884 check_header sys/select.h
2885 check_header vdpau/vdpau.h
2886 check_header vdpau/vdpau_x11.h
2887 check_header X11/extensions/XvMClib.h
2888
2889 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2890 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2891
2892 if ! disabled w32threads && ! enabled pthreads; then
2893     check_func _beginthreadex && enable w32threads
2894 fi
2895
2896 # check for some common methods of building with pthread support
2897 # do this before the optional library checks as some of them require pthreads
2898 if ! disabled pthreads && ! enabled w32threads; then
2899     enable pthreads
2900     if check_func pthread_create; then
2901         :
2902     elif check_func pthread_create -pthread; then
2903         add_cflags -pthread
2904         add_extralibs -pthread
2905     elif check_func pthread_create -pthreads; then
2906         add_cflags -pthreads
2907         add_extralibs -pthreads
2908     elif check_func pthread_create -lpthreadGC2; then
2909         add_extralibs -lpthreadGC2
2910     elif ! check_lib pthread.h pthread_create -lpthread; then
2911         disable pthreads
2912     fi
2913 fi
2914
2915 for thread in $THREADS_LIST; do
2916     if enabled $thread; then
2917         test -n "$thread_type" &&
2918             die "ERROR: Only one thread type must be selected." ||
2919             thread_type="$thread"
2920     fi
2921 done
2922
2923 check_lib math.h sin -lm && LIBM="-lm"
2924 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2925
2926 check_mathfunc exp2
2927 check_mathfunc exp2f
2928 check_mathfunc llrint
2929 check_mathfunc llrintf
2930 check_mathfunc log2
2931 check_mathfunc log2f
2932 check_mathfunc lrint
2933 check_mathfunc lrintf
2934 check_mathfunc round
2935 check_mathfunc roundf
2936 check_mathfunc trunc
2937 check_mathfunc truncf
2938
2939 # these are off by default, so fail if requested and not available
2940 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2941 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2942 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2943 enabled libdirac   && require_pkg_config dirac                          \
2944     "libdirac_decoder/dirac_parser.h"  \
2945     "dirac_decoder_init"
2946 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2947 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2948 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2949 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2950 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2951 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2952 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2953 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2954 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2955 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2956 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2957 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2958 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2959 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2960 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2961 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2962 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2963 enabled libvpx     && {
2964     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2965                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2966     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2967                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2968 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2969                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2970                         die "ERROR: libx264 version must be >= 0.118."; }
2971 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2972 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2973 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2974                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2975                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2976                         die "ERROR: openssl not found"; }
2977
2978 # libdc1394 check
2979 if enabled libdc1394; then
2980     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2981         enable libdc1394_2; } ||
2982     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2983         enable libdc1394_1; } ||
2984     die "ERROR: No version of libdc1394 found "
2985 fi
2986
2987 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2988     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2989     enable sdl &&
2990     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2991 fi
2992
2993 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2994
2995 check_header linux/fb.h
2996 check_header linux/videodev2.h
2997 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2998
2999 check_header sys/videoio.h
3000
3001 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3002 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3003 # w32api 3.12 had it defined wrong
3004 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3005
3006 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3007 { check_header dev/bktr/ioctl_meteor.h &&
3008   check_header dev/bktr/ioctl_bt848.h; } ||
3009 { check_header machine/ioctl_meteor.h &&
3010   check_header machine/ioctl_bt848.h; } ||
3011 { check_header dev/video/meteor/ioctl_meteor.h &&
3012   check_header dev/video/bktr/ioctl_bt848.h; } ||
3013 check_header dev/ic/bt8xx.h
3014
3015 check_header sndio.h
3016 check_header sys/soundcard.h
3017 check_header soundcard.h
3018
3019 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3020
3021 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3022
3023 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3024
3025 enabled libcdio &&
3026     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3027
3028 enabled x11grab                                           &&
3029 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3030 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3031 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3032
3033 # check for VDA header
3034 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3035     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3036 fi
3037
3038 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3039 check_cpp_condition \
3040     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3041     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3042       disable vdpau; }
3043 fi
3044
3045 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3046
3047 # add some useful compiler flags if supported
3048 check_cflags -Wdeclaration-after-statement
3049 check_cflags -Wall
3050 check_cflags -Wno-parentheses
3051 check_cflags -Wno-switch
3052 check_cflags -Wno-format-zero-length
3053 check_cflags -Wdisabled-optimization
3054 check_cflags -Wpointer-arith
3055 check_cflags -Wredundant-decls
3056 check_cflags -Wno-pointer-sign
3057 check_cflags -Wcast-qual
3058 check_cflags -Wwrite-strings
3059 check_cflags -Wtype-limits
3060 check_cflags -Wundef
3061 check_cflags -Wmissing-prototypes
3062 check_cflags -Wstrict-prototypes
3063 enabled extra_warnings && check_cflags -Winline
3064
3065 # add some linker flags
3066 check_ldflags -Wl,--warn-common
3067 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3068 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3069
3070 enabled xmm_clobber_test &&                             \
3071     check_ldflags -Wl,--wrap,avcodec_open2              \
3072                   -Wl,--wrap,avcodec_decode_audio4      \
3073                   -Wl,--wrap,avcodec_decode_video2      \
3074                   -Wl,--wrap,avcodec_decode_subtitle2   \
3075                   -Wl,--wrap,avcodec_encode_audio2      \
3076                   -Wl,--wrap,avcodec_encode_video       \
3077                   -Wl,--wrap,avcodec_encode_subtitle    \
3078                   -Wl,--wrap,sws_scale ||               \
3079     disable xmm_clobber_test
3080
3081 echo "X{};" > $TMPV
3082 if test_ldflags -Wl,--version-script,$TMPV; then
3083     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3084     check_cc <<EOF && enable symver_asm_label
3085 void ff_foo(void) __asm__ ("av_foo@VERSION");
3086 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3087 EOF
3088     check_cc <<EOF && enable symver_gnu_asm
3089 __asm__(".symver ff_foo,av_foo@VERSION");
3090 void ff_foo(void) {}
3091 EOF
3092 fi
3093
3094 if [ -n "$optflags" ]; then
3095     add_cflags $optflags
3096 elif enabled small; then
3097     add_cflags $size_cflags
3098 elif enabled optimizations; then
3099     add_cflags $speed_cflags
3100 else
3101     add_cflags $noopt_cflags
3102 fi
3103 check_cflags -fno-math-errno
3104 check_cflags -fno-signed-zeros
3105
3106 if enabled icc; then
3107     # Just warnings, no remarks
3108     check_cflags -w1
3109     # -wd: Disable following warnings
3110     # 144, 167, 556: -Wno-pointer-sign
3111     # 1292: attribute "foo" ignored
3112     # 10006: ignoring unknown option -fno-signed-zeros
3113     # 10148: ignoring unknown option -Wno-parentheses
3114     # 10156: ignoring option '-W'; no argument required
3115     check_cflags -wd144,167,556,1292,10006,10148,10156
3116     # 11030: Warning unknown option --as-needed
3117     # 10156: ignoring option '-export'; no argument required
3118     check_ldflags -wd10156,11030
3119     # Allow to compile with optimizations
3120     check_ldflags -march=$cpu
3121     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3122     enable ebp_available
3123     if enabled x86_32; then
3124         test ${icc_version%%.*} -ge 11 && \
3125             check_cflags -falign-stack=maintain-16-byte || \
3126             disable aligned_stack
3127     fi
3128 elif enabled ccc; then
3129     # disable some annoying warnings
3130     add_cflags -msg_disable cvtu32to64
3131     add_cflags -msg_disable embedcomment
3132     add_cflags -msg_disable needconstext
3133     add_cflags -msg_disable nomainieee
3134     add_cflags -msg_disable ptrmismatch1
3135     add_cflags -msg_disable unreachcode
3136 elif enabled gcc; then
3137     check_cflags -fno-tree-vectorize
3138     check_cflags -Werror=implicit-function-declaration
3139     check_cflags -Werror=missing-prototypes
3140     check_cflags -Werror=declaration-after-statement
3141 elif enabled llvm_gcc; then
3142     check_cflags -mllvm -stack-alignment=16
3143 elif enabled clang; then
3144     check_cflags -mllvm -stack-alignment=16
3145     check_cflags -Qunused-arguments
3146 elif enabled armcc; then
3147     # 2523: use of inline assembler is deprecated
3148     add_cflags -W${armcc_opt},--diag_suppress=2523
3149     add_cflags -W${armcc_opt},--diag_suppress=1207
3150     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3151     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3152     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3153     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3154 elif enabled tms470; then
3155     add_cflags -pds=824 -pds=837
3156 elif enabled pathscale; then
3157     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3158 fi
3159
3160 enabled_any $THREADS_LIST      && enable threads
3161
3162 check_deps $CONFIG_LIST       \
3163            $CONFIG_EXTRA      \
3164            $HAVE_LIST         \
3165            $ALL_COMPONENTS    \
3166            $ALL_TESTS         \
3167
3168 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3169
3170 ! enabled_any memalign posix_memalign malloc_aligned &&
3171     enabled_any $need_memalign && enable memalign_hack
3172
3173 echo "install prefix            $prefix"
3174 echo "source path               $source_path"
3175 echo "C compiler                $cc"
3176 echo "ARCH                      $arch ($cpu)"
3177 if test "$build_suffix" != ""; then
3178     echo "build suffix              $build_suffix"
3179 fi
3180 if test "$extra_version" != ""; then
3181     echo "version string suffix     $extra_version"
3182 fi
3183 echo "big-endian                ${bigendian-no}"
3184 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3185 if enabled x86; then
3186     echo "${yasmexe}                      ${yasm-no}"
3187     echo "MMX enabled               ${mmx-no}"
3188     echo "MMX2 enabled              ${mmx2-no}"
3189     echo "3DNow! enabled            ${amd3dnow-no}"
3190     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3191     echo "SSE enabled               ${sse-no}"
3192     echo "SSSE3 enabled             ${ssse3-no}"
3193     echo "AVX enabled               ${avx-no}"
3194     echo "CMOV enabled              ${cmov-no}"
3195     echo "CMOV is fast              ${fast_cmov-no}"
3196     echo "EBX available             ${ebx_available-no}"
3197     echo "EBP available             ${ebp_available-no}"
3198 fi
3199 if enabled arm; then
3200     echo "ARMv5TE enabled           ${armv5te-no}"
3201     echo "ARMv6 enabled             ${armv6-no}"
3202     echo "ARMv6T2 enabled           ${armv6t2-no}"
3203     echo "ARM VFP enabled           ${armvfp-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"