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