configure: generalise 64-bit test
[libav.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 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --libdir=DIR install libs in DIR [PREFIX/lib]
85 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
86 --incdir=DIR install includes in DIR [PREFIX/include]
87 --mandir=DIR install man page in DIR [PREFIX/share/man]
88
89 Licensing options:
90 --enable-gpl allow use of GPL code, the resulting libs
91 and binaries will be under GPL [no]
92 --enable-version3 upgrade (L)GPL to version 3 [no]
93 --enable-nonfree allow use of nonfree code, the resulting libs
94 and binaries will be unredistributable [no]
95
96 Configuration options:
97 --disable-static do not build static libraries [no]
98 --enable-shared build shared libraries [no]
99 --enable-small optimize for size instead of speed
100 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
101 --enable-gray enable full grayscale support (slower color)
102 --disable-swscale-alpha disable alpha channel support in swscale
103
104 Component options:
105 --disable-doc do not build documentation
106 --disable-avconv disable avconv build
107 --disable-avplay disable avplay build
108 --disable-avprobe disable avprobe build
109 --disable-avserver disable avserver build
110 --disable-avdevice disable libavdevice build
111 --disable-avcodec disable libavcodec build
112 --disable-avformat disable libavformat build
113 --disable-swscale disable libswscale build
114 --disable-avfilter disable video filter support [no]
115 --disable-avresample disable libavresample build [no]
116 --disable-pthreads disable pthreads [auto]
117 --disable-w32threads disable Win32 threads [auto]
118 --enable-x11grab enable X11 grabbing [no]
119 --disable-network disable network support [no]
120 --disable-dct disable DCT code
121 --disable-dwt disable DWT code
122 --disable-lsp disable LSP code
123 --disable-mdct disable MDCT code
124 --disable-rdft disable RDFT code
125 --disable-fft disable FFT code
126 --enable-dxva2 enable DXVA2 code
127 --enable-vaapi enable VAAPI code
128 --enable-vda enable VDA code
129 --enable-vdpau enable VDPAU code
130
131 Individual component options:
132 --disable-everything disable all components listed below
133 --disable-encoder=NAME disable encoder NAME
134 --enable-encoder=NAME enable encoder NAME
135 --disable-encoders disable all encoders
136 --disable-decoder=NAME disable decoder NAME
137 --enable-decoder=NAME enable decoder NAME
138 --disable-decoders disable all decoders
139 --disable-hwaccel=NAME disable hwaccel NAME
140 --enable-hwaccel=NAME enable hwaccel NAME
141 --disable-hwaccels disable all hwaccels
142 --disable-muxer=NAME disable muxer NAME
143 --enable-muxer=NAME enable muxer NAME
144 --disable-muxers disable all muxers
145 --disable-demuxer=NAME disable demuxer NAME
146 --enable-demuxer=NAME enable demuxer NAME
147 --disable-demuxers disable all demuxers
148 --enable-parser=NAME enable parser NAME
149 --disable-parser=NAME disable parser NAME
150 --disable-parsers disable all parsers
151 --enable-bsf=NAME enable bitstream filter NAME
152 --disable-bsf=NAME disable bitstream filter NAME
153 --disable-bsfs disable all bitstream filters
154 --enable-protocol=NAME enable protocol NAME
155 --disable-protocol=NAME disable protocol NAME
156 --disable-protocols disable all protocols
157 --enable-indev=NAME enable input device NAME
158 --disable-indev=NAME disable input device NAME
159 --disable-indevs disable input devices
160 --enable-outdev=NAME enable output device NAME
161 --disable-outdev=NAME disable output device NAME
162 --disable-outdevs disable output devices
163 --disable-devices disable all devices
164 --enable-filter=NAME enable filter NAME
165 --disable-filter=NAME disable filter NAME
166 --disable-filters disable all filters
167
168 External library support:
169 --enable-avisynth enable reading of AVISynth script files [no]
170 --enable-bzlib enable bzlib [autodetect]
171 --enable-frei0r enable frei0r video filtering
172 --enable-gnutls enable gnutls [no]
173 --enable-libcdio enable audio CD grabbing with libcdio
174 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
175 and libraw1394 [no]
176 --enable-libfaac enable AAC encoding via libfaac [no]
177 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
178 --enable-libfreetype enable libfreetype [no]
179 --enable-libgsm enable GSM de/encoding via libgsm [no]
180 --enable-libilbc enable iLBC de/encoding via libilbc [no]
181 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
182 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
183 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
184 --enable-libopencv enable video filtering via libopencv [no]
185 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
186 --enable-libopus enable Opus decoding via libopus [no]
187 --enable-libpulse enable Pulseaudio input via libpulse [no]
188 --enable-librtmp enable RTMP[E] support via librtmp [no]
189 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
190 --enable-libspeex enable Speex de/encoding via libspeex [no]
191 --enable-libtheora enable Theora encoding via libtheora [no]
192 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
193 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
194 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
195 --enable-libvpx enable VP8 de/encoding via libvpx [no]
196 --enable-libx264 enable H.264 encoding via x264 [no]
197 --enable-libxavs enable AVS encoding via xavs [no]
198 --enable-libxvid enable Xvid encoding via xvidcore,
199 native MPEG-4/Xvid encoder exists [no]
200 --enable-openssl enable openssl [no]
201 --enable-zlib enable zlib [autodetect]
202
203 Advanced options (experts only):
204 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
205 --enable-cross-compile assume a cross-compiler is used
206 --sysroot=PATH root of cross-build tree
207 --sysinclude=PATH location of cross-build system headers
208 --target-os=OS compiler targets OS [$target_os]
209 --target-exec=CMD command to run executables on target
210 --target-path=DIR path to view of build directory on target
211 --toolchain=NAME set tool defaults according to NAME
212 --nm=NM use nm tool
213 --ar=AR use archive tool AR [$ar_default]
214 --as=AS use assembler AS [$as_default]
215 --cc=CC use C compiler CC [$cc_default]
216 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
217 --ld=LD use linker LD
218 --host-cc=HOSTCC use host C compiler HOSTCC
219 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
220 --host-ld=HOSTLD use host linker HOSTLD
221 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
222 --host-libs=HLIBS use libs HLIBS when linking for host
223 --host-os=OS compiler host OS [$target_os]
224 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
225 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
226 --extra-libs=ELIBS add ELIBS [$ELIBS]
227 --extra-version=STRING version string suffix []
228 --optflags=OPTFLAGS override optimization-related compiler flags
229 --build-suffix=SUFFIX library name suffix []
230 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
231 --arch=ARCH select architecture [$arch]
232 --cpu=CPU select the minimum required CPU (affects
233 instruction selection, may crash on older CPUs)
234 --enable-pic build position-independent code
235 --enable-sram allow use of on-chip SRAM
236 --enable-thumb compile for Thumb instruction set
237 --disable-symver disable symbol versioning
238 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
239 --disable-safe-bitstream-reader
240 disable buffer boundary checking in bitreaders
241 (faster, but may crash)
242 --enable-memalign-hack emulate memalign, interferes with memory debuggers
243 --enable-lto use link-time optimization
244
245 Optimization options (experts only):
246 --disable-asm disable all assembler optimizations
247 --disable-altivec disable AltiVec optimizations
248 --disable-amd3dnow disable 3DNow! optimizations
249 --disable-amd3dnowext disable 3DNow! extended optimizations
250 --disable-mmx disable MMX optimizations
251 --disable-mmxext disable MMXEXT optimizations
252 --disable-sse disable SSE optimizations
253 --disable-sse2 disable SSE2 optimizations
254 --disable-sse3 disable SSE3 optimizations
255 --disable-ssse3 disable SSSE3 optimizations
256 --disable-sse4 disable SSE4 optimizations
257 --disable-sse42 disable SSE4.2 optimizations
258 --disable-avx disable AVX optimizations
259 --disable-fma4 disable FMA4 optimizations
260 --disable-armv5te disable armv5te optimizations
261 --disable-armv6 disable armv6 optimizations
262 --disable-armv6t2 disable armv6t2 optimizations
263 --disable-armvfp disable ARM VFP optimizations
264 --disable-neon disable NEON optimizations
265 --disable-vis disable VIS optimizations
266 --disable-inline-asm disable use of inline assembler
267 --disable-yasm disable use of yasm assembler
268
269 Developer options (useful when working on Libav itself):
270 --disable-debug disable debugging symbols
271 --enable-debug=LEVEL set the debug level [$debuglevel]
272 --disable-optimizations disable compiler optimizations
273 --enable-extra-warnings enable more compiler warnings
274 --samples=PATH location of test samples for FATE, if not set use
275 \$LIBAV_SAMPLES at make invocation time.
276 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
277 should be used only for debugging purposes)
278 --enable-random randomly enable/disable components
279 --disable-random
280 --enable-random=LIST randomly enable/disable specific components or
281 --disable-random=LIST component groups. LIST is a comma-separated list
282 of NAME[:PROB] entries where NAME is a component
283 (group) and PROB the probability associated with
284 NAME (default 0.5).
285 --random-seed=VALUE seed value for --enable/disable-random
286
287 NOTE: Object files are built at the place where configure is launched.
288 EOF
289 exit 0
290 }
291
292 quotes='""'
293
294 log(){
295 echo "$@" >> $logfile
296 }
297
298 log_file(){
299 log BEGIN $1
300 pr -n -t $1 >> $logfile
301 log END $1
302 }
303
304 echolog(){
305 log "$@"
306 echo "$@"
307 }
308
309 warn(){
310 log "WARNING: $*"
311 WARNINGS="${WARNINGS}WARNING: $*\n"
312 }
313
314 die(){
315 echolog "$@"
316 cat <<EOF
317
318 If you think configure made a mistake, make sure you are using the latest
319 version from Git. If the latest version fails, report the problem to the
320 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
321 EOF
322 if disabled logging; then
323 cat <<EOF
324 Rerun configure with logging enabled (do not use --disable-logging), and
325 include the log this produces with your report.
326 EOF
327 else
328 cat <<EOF
329 Include the log file "$logfile" produced by configure as this will help
330 solving the problem.
331 EOF
332 fi
333 exit 1
334 }
335
336 # Avoid locale weirdness, besides we really just want to translate ASCII.
337 toupper(){
338 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
339 }
340
341 tolower(){
342 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
343 }
344
345 c_escape(){
346 echo "$*" | sed 's/["\\]/\\\0/g'
347 }
348
349 sh_quote(){
350 v=$(echo "$1" | sed "s/'/'\\\\''/g")
351 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
352 echo "$v"
353 }
354
355 cleanws(){
356 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
357 }
358
359 filter(){
360 pat=$1
361 shift
362 for v; do
363 eval "case $v in $pat) echo $v ;; esac"
364 done
365 }
366
367 filter_out(){
368 pat=$1
369 shift
370 for v; do
371 eval "case $v in $pat) ;; *) echo $v ;; esac"
372 done
373 }
374
375 map(){
376 m=$1
377 shift
378 for v; do eval $m; done
379 }
380
381 add_suffix(){
382 suffix=$1
383 shift
384 for v; do echo ${v}${suffix}; done
385 }
386
387 set_all(){
388 value=$1
389 shift
390 for var in $*; do
391 eval $var=$value
392 done
393 }
394
395 set_weak(){
396 value=$1
397 shift
398 for var; do
399 eval : \${$var:=$value}
400 done
401 }
402
403 set_safe(){
404 var=$1
405 shift
406 eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
407 }
408
409 get_safe(){
410 eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
411 }
412
413 pushvar(){
414 for var in $*; do
415 eval level=\${${var}_level:=0}
416 eval ${var}_${level}="\$$var"
417 eval ${var}_level=$(($level+1))
418 done
419 }
420
421 popvar(){
422 for var in $*; do
423 eval level=\${${var}_level:-0}
424 test $level = 0 && continue
425 eval level=$(($level-1))
426 eval $var="\${${var}_${level}}"
427 eval ${var}_level=$level
428 eval unset ${var}_${level}
429 done
430 }
431
432 enable(){
433 set_all yes $*
434 }
435
436 disable(){
437 set_all no $*
438 }
439
440 enable_weak(){
441 set_weak yes $*
442 }
443
444 disable_weak(){
445 set_weak no $*
446 }
447
448 enable_safe(){
449 for var; do
450 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
451 done
452 }
453
454 disable_safe(){
455 for var; do
456 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
457 done
458 }
459
460 do_enable_deep(){
461 for var; do
462 enabled $var && continue
463 eval sel="\$${var}_select"
464 eval sgs="\$${var}_suggest"
465 pushvar var sgs
466 enable_deep $sel
467 popvar sgs
468 enable_deep_weak $sgs
469 popvar var
470 done
471 }
472
473 enable_deep(){
474 do_enable_deep $*
475 enable $*
476 }
477
478 enable_deep_weak(){
479 do_enable_deep $*
480 enable_weak $*
481 }
482
483 enabled(){
484 test "${1#!}" = "$1" && op== || op=!=
485 eval test "x\$${1#!}" $op "xyes"
486 }
487
488 disabled(){
489 test "${1#!}" = "$1" && op== || op=!=
490 eval test "x\$${1#!}" $op "xno"
491 }
492
493 enabled_all(){
494 for opt; do
495 enabled $opt || return 1
496 done
497 }
498
499 disabled_all(){
500 for opt; do
501 disabled $opt || return 1
502 done
503 }
504
505 enabled_any(){
506 for opt; do
507 enabled $opt && return 0
508 done
509 }
510
511 disabled_any(){
512 for opt; do
513 disabled $opt && return 0
514 done
515 return 1
516 }
517
518 set_default(){
519 for opt; do
520 eval : \${$opt:=\$${opt}_default}
521 done
522 }
523
524 is_in(){
525 value=$1
526 shift
527 for var in $*; do
528 [ $var = $value ] && return 0
529 done
530 return 1
531 }
532
533 check_deps(){
534 for cfg; do
535 cfg="${cfg#!}"
536 enabled ${cfg}_checking && die "Circular dependency for $cfg."
537 disabled ${cfg}_checking && continue
538 enable ${cfg}_checking
539
540 eval dep_all="\$${cfg}_deps"
541 eval dep_any="\$${cfg}_deps_any"
542 eval dep_sel="\$${cfg}_select"
543 eval dep_sgs="\$${cfg}_suggest"
544 eval dep_ifa="\$${cfg}_if"
545 eval dep_ifn="\$${cfg}_if_any"
546
547 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
548 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
549 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
550
551 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
552 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
553 enabled_all $dep_all || disable $cfg
554 enabled_any $dep_any || disable $cfg
555 disabled_any $dep_sel && disable $cfg
556
557 if enabled $cfg; then
558 eval dep_extralibs="\$${cfg}_extralibs"
559 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
560 enable_deep $dep_sel
561 enable_deep_weak $dep_sgs
562 fi
563
564 disable ${cfg}_checking
565 done
566 }
567
568 print_config_h(){
569 enabled $1 && v=1 || v=0
570 echo "#define $2 $v"
571 }
572
573 print_config_mak(){
574 enabled $1 && v= || v=!
575 echo "$v$2=yes"
576 }
577
578 print_config_asm(){
579 enabled $1 && v=1 || v=0
580 echo "%define $2 $v"
581 }
582
583 print_config(){
584 pfx=$1
585 files=$2
586 shift 2
587 for cfg; do
588 ucname="$(toupper $cfg)"
589 for f in $files; do
590 "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
591 done
592 done
593 }
594
595 print_enabled(){
596 test x"$1" = x-n && end=" " && shift || end="\n"
597 suf=$1
598 shift
599 for v; do
600 enabled $v && printf "%s$end" ${v%$suf};
601 done
602 }
603
604 append(){
605 var=$1
606 shift
607 eval "$var=\"\$$var $*\""
608 }
609
610 prepend(){
611 var=$1
612 shift
613 eval "$var=\"$* \$$var\""
614 }
615
616 add_cppflags(){
617 append CPPFLAGS "$@"
618 }
619
620 add_cflags(){
621 append CFLAGS $($cflags_filter "$@")
622 }
623
624 add_asflags(){
625 append ASFLAGS $($asflags_filter "$@")
626 }
627
628 add_ldflags(){
629 append LDFLAGS $($ldflags_filter "$@")
630 }
631
632 add_extralibs(){
633 prepend extralibs $($ldflags_filter "$@")
634 }
635
636 add_host_cflags(){
637 append host_cflags $($host_cflags_filter "$@")
638 }
639
640 add_host_ldflags(){
641 append host_ldflags $($host_ldflags_filter "$@")
642 }
643
644 add_compat(){
645 append compat_objs $1
646 shift
647 map 'add_cppflags -D$v' "$@"
648 }
649
650 check_cmd(){
651 log "$@"
652 "$@" >> $logfile 2>&1
653 }
654
655 cc_o(){
656 eval printf '%s\\n' $CC_O
657 }
658
659 cc_e(){
660 eval printf '%s\\n' $CC_E
661 }
662
663 check_cc(){
664 log check_cc "$@"
665 cat > $TMPC
666 log_file $TMPC
667 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
668 }
669
670 check_cpp(){
671 log check_cpp "$@"
672 cat > $TMPC
673 log_file $TMPC
674 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
675 }
676
677 as_o(){
678 eval printf '%s\\n' $AS_O
679 }
680
681 check_as(){
682 log check_as "$@"
683 cat > $TMPC
684 log_file $TMPC
685 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
686 }
687
688 check_inline_asm(){
689 log check_inline_asm "$@"
690 name="$1"
691 code="$2"
692 shift 2
693 disable $name
694 check_as "$@" <<EOF && enable $name
695 void foo(void){ __asm__ volatile($code); }
696 EOF
697 }
698
699 check_yasm(){
700 log check_yasm "$@"
701 echo "$1" > $TMPS
702 log_file $TMPS
703 shift 1
704 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
705 }
706
707 ld_o(){
708 eval printf '%s\\n' $LD_O
709 }
710
711 check_ld(){
712 log check_ld "$@"
713 flags=$(filter_out '-l*' "$@")
714 libs=$(filter '-l*' "$@")
715 check_cc $($cflags_filter $flags) || return
716 flags=$($ldflags_filter $flags)
717 libs=$($ldflags_filter $libs)
718 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
719 }
720
721 check_code(){
722 log check_code "$@"
723 check=$1
724 headers=$2
725 code=$3
726 shift 3
727 {
728 for hdr in $headers; do
729 echo "#include <$hdr>"
730 done
731 echo "int main(void) { $code; return 0; }"
732 } | check_$check "$@"
733 }
734
735 check_cppflags(){
736 log check_cppflags "$@"
737 check_cc "$@" <<EOF && append CPPFLAGS "$@"
738 int x;
739 EOF
740 }
741
742 check_cflags(){
743 log check_cflags "$@"
744 set -- $($cflags_filter "$@")
745 check_cc "$@" <<EOF && append CFLAGS "$@"
746 int x;
747 EOF
748 }
749
750 test_ldflags(){
751 log test_ldflags "$@"
752 check_ld "$@" <<EOF
753 int main(void){ return 0; }
754 EOF
755 }
756
757 check_ldflags(){
758 log check_ldflags "$@"
759 test_ldflags "$@" && add_ldflags "$@"
760 }
761
762 check_header(){
763 log check_header "$@"
764 header=$1
765 shift
766 disable_safe $header
767 check_cpp "$@" <<EOF && enable_safe $header
768 #include <$header>
769 int x;
770 EOF
771 }
772
773 check_func(){
774 log check_func "$@"
775 func=$1
776 shift
777 disable $func
778 check_ld "$@" <<EOF && enable $func
779 extern int $func();
780 int main(void){ $func(); }
781 EOF
782 }
783
784 check_mathfunc(){
785 log check_mathfunc "$@"
786 func=$1
787 shift
788 disable $func
789 check_ld "$@" <<EOF && enable $func
790 #include <math.h>
791 float foo(float f) { return $func(f); }
792 int main(void){ return 0; }
793 EOF
794 }
795
796 check_func_headers(){
797 log check_func_headers "$@"
798 headers=$1
799 funcs=$2
800 shift 2
801 {
802 for hdr in $headers; do
803 echo "#include <$hdr>"
804 done
805 for func in $funcs; do
806 echo "long check_$func(void) { return (long) $func; }"
807 done
808 echo "int main(void) { return 0; }"
809 } | check_ld "$@" && enable $funcs && enable_safe $headers
810 }
811
812 check_cpp_condition(){
813 log check_cpp_condition "$@"
814 header=$1
815 condition=$2
816 shift 2
817 check_cpp "$@" <<EOF
818 #include <$header>
819 #if !($condition)
820 #error "unsatisfied condition: $condition"
821 #endif
822 EOF
823 }
824
825 check_lib(){
826 log check_lib "$@"
827 header="$1"
828 func="$2"
829 shift 2
830 check_header $header && check_func $func "$@" && add_extralibs "$@"
831 }
832
833 check_lib2(){
834 log check_lib2 "$@"
835 headers="$1"
836 funcs="$2"
837 shift 2
838 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
839 }
840
841 check_pkg_config(){
842 log check_pkg_config "$@"
843 pkg="$1"
844 headers="$2"
845 funcs="$3"
846 shift 3
847 $pkg_config --exists $pkg || return
848 pkg_cflags=$($pkg_config --cflags $pkg)
849 pkg_libs=$($pkg_config --libs $pkg)
850 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
851 set_safe ${pkg}_cflags $pkg_cflags &&
852 set_safe ${pkg}_libs $pkg_libs
853 }
854
855 check_exec(){
856 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
857 }
858
859 check_exec_crash(){
860 code=$(cat)
861
862 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
863 # are safe but may not be available everywhere. Thus we use
864 # raise(SIGTERM) instead. The check is run in a subshell so we
865 # can redirect the "Terminated" message from the shell. SIGBUS
866 # is not defined by standard C so it is used conditionally.
867
868 (check_exec "$@") >> $logfile 2>&1 <<EOF
869 #include <signal.h>
870 static void sighandler(int sig){
871 raise(SIGTERM);
872 }
873 int foo(void){
874 $code
875 }
876 int main(void){
877 signal(SIGILL, sighandler);
878 signal(SIGFPE, sighandler);
879 signal(SIGSEGV, sighandler);
880 #ifdef SIGBUS
881 signal(SIGBUS, sighandler);
882 #endif
883 foo();
884 }
885 EOF
886 }
887
888 check_type(){
889 log check_type "$@"
890 headers=$1
891 type=$2
892 shift 2
893 disable_safe "$type"
894 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
895 }
896
897 check_struct(){
898 log check_type "$@"
899 headers=$1
900 struct=$2
901 member=$3
902 shift 3
903 disable_safe "${struct}_${member}"
904 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
905 enable_safe "${struct}_${member}"
906 }
907
908 require(){
909 name="$1"
910 header="$2"
911 func="$3"
912 shift 3
913 check_lib $header $func "$@" || die "ERROR: $name not found"
914 }
915
916 require2(){
917 name="$1"
918 headers="$2"
919 func="$3"
920 shift 3
921 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
922 }
923
924 require_pkg_config(){
925 pkg="$1"
926 check_pkg_config "$@" || die "ERROR: $pkg not found"
927 add_cflags $(get_safe ${pkg}_cflags)
928 add_extralibs $(get_safe ${pkg}_libs)
929 }
930
931 hostcc_o(){
932 eval printf '%s\\n' $HOSTCC_O
933 }
934
935 check_host_cc(){
936 log check_host_cc "$@"
937 cat > $TMPC
938 log_file $TMPC
939 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
940 }
941
942 check_host_cflags(){
943 log check_host_cflags "$@"
944 set -- $($host_cflags_filter "$@")
945 check_host_cc "$@" <<EOF && append host_cflags "$@"
946 int x;
947 EOF
948 }
949
950 apply(){
951 file=$1
952 shift
953 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
954 }
955
956 cp_if_changed(){
957 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
958 mkdir -p "$(dirname $2)"
959 $cp_f "$1" "$2"
960 }
961
962 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
963 # system-dependent things.
964
965 COMPONENT_LIST="
966 bsfs
967 decoders
968 demuxers
969 encoders
970 filters
971 hwaccels
972 indevs
973 muxers
974 outdevs
975 parsers
976 protocols
977 "
978
979 PROGRAM_LIST="
980 avconv
981 avplay
982 avprobe
983 avserver
984 "
985
986 CONFIG_LIST="
987 $COMPONENT_LIST
988 $PROGRAM_LIST
989 avcodec
990 avdevice
991 avfilter
992 avformat
993 avresample
994 avisynth
995 bzlib
996 dct
997 doc
998 dwt
999 dxva2
1000 fft
1001 frei0r
1002 gnutls
1003 gpl
1004 gray
1005 hardcoded_tables
1006 libcdio
1007 libdc1394
1008 libfaac
1009 libfdk_aac
1010 libfreetype
1011 libgsm
1012 libilbc
1013 libmp3lame
1014 libopencore_amrnb
1015 libopencore_amrwb
1016 libopencv
1017 libopenjpeg
1018 libopus
1019 libpulse
1020 librtmp
1021 libschroedinger
1022 libspeex
1023 libtheora
1024 libvo_aacenc
1025 libvo_amrwbenc
1026 libvorbis
1027 libvpx
1028 libx264
1029 libxavs
1030 libxvid
1031 lsp
1032 mdct
1033 memalign_hack
1034 network
1035 nonfree
1036 openssl
1037 pic
1038 rdft
1039 runtime_cpudetect
1040 safe_bitstream_reader
1041 shared
1042 small
1043 sram
1044 static
1045 swscale
1046 swscale_alpha
1047 thumb
1048 vaapi
1049 vda
1050 vdpau
1051 version3
1052 xmm_clobber_test
1053 x11grab
1054 zlib
1055 "
1056
1057 THREADS_LIST='
1058 pthreads
1059 w32threads
1060 '
1061
1062 ARCH_LIST='
1063 alpha
1064 arm
1065 avr32
1066 avr32_ap
1067 avr32_uc
1068 bfin
1069 ia64
1070 m68k
1071 mips
1072 mips64
1073 parisc
1074 ppc
1075 ppc64
1076 s390
1077 sh4
1078 sparc
1079 sparc64
1080 tilegx
1081 tilepro
1082 tomi
1083 x86
1084 x86_32
1085 x86_64
1086 '
1087
1088 ARCH_EXT_LIST_X86='
1089 amd3dnow
1090 amd3dnowext
1091 avx
1092 fma4
1093 mmx
1094 mmxext
1095 sse
1096 sse2
1097 sse3
1098 sse4
1099 sse42
1100 ssse3
1101 '
1102
1103 ARCH_EXT_LIST="
1104 $ARCH_EXT_LIST_X86
1105 altivec
1106 armv5te
1107 armv6
1108 armv6t2
1109 armvfp
1110 neon
1111 ppc4xx
1112 vfpv3
1113 vis
1114 "
1115
1116 HAVE_LIST_CMDLINE='
1117 inline_asm
1118 symver
1119 yasm
1120 '
1121
1122 HAVE_LIST_PUB='
1123 bigendian
1124 fast_unaligned
1125 '
1126
1127 MATH_FUNCS="
1128 atanf
1129 atan2f
1130 cbrtf
1131 cosf
1132 exp2
1133 exp2f
1134 expf
1135 isinf
1136 isnan
1137 ldexpf
1138 llrint
1139 llrintf
1140 log2
1141 log2f
1142 log10f
1143 lrint
1144 lrintf
1145 powf
1146 rint
1147 round
1148 roundf
1149 sinf
1150 trunc
1151 truncf
1152 "
1153
1154 HAVE_LIST="
1155 $ARCH_EXT_LIST
1156 $(add_suffix _external $ARCH_EXT_LIST)
1157 $(add_suffix _inline $ARCH_EXT_LIST)
1158 $HAVE_LIST_CMDLINE
1159 $HAVE_LIST_PUB
1160 $THREADS_LIST
1161 $MATH_FUNCS
1162 aligned_malloc
1163 aligned_stack
1164 alsa_asoundlib_h
1165 altivec_h
1166 arpa_inet_h
1167 asm_mod_q
1168 asm_mod_y
1169 attribute_may_alias
1170 attribute_packed
1171 closesocket
1172 cmov
1173 cpunop
1174 CryptGenRandom
1175 dcbzl
1176 dev_bktr_ioctl_bt848_h
1177 dev_bktr_ioctl_meteor_h
1178 dev_ic_bt8xx_h
1179 dev_video_bktr_ioctl_bt848_h
1180 dev_video_meteor_ioctl_meteor_h
1181 direct_h
1182 dlfcn_h
1183 dlopen
1184 dos_paths
1185 dxva_h
1186 ebp_available
1187 ebx_available
1188 fast_64bit
1189 fast_clz
1190 fast_cmov
1191 fcntl
1192 fork
1193 getaddrinfo
1194 gethrtime
1195 getopt
1196 GetProcessAffinityMask
1197 GetProcessMemoryInfo
1198 GetProcessTimes
1199 GetSystemTimeAsFileTime
1200 getrusage
1201 getservbyport
1202 gettimeofday
1203 gnu_as
1204 ibm_asm
1205 inet_aton
1206 io_h
1207 isatty
1208 jack_port_get_latency_range
1209 ldbrx
1210 libdc1394_1
1211 libdc1394_2
1212 local_aligned_16
1213 local_aligned_8
1214 localtime_r
1215 loongson
1216 machine_ioctl_bt848_h
1217 machine_ioctl_meteor_h
1218 malloc_h
1219 MapViewOfFile
1220 memalign
1221 mkstemp
1222 mm_empty
1223 mmap
1224 mprotect
1225 msvcrt
1226 nanosleep
1227 poll_h
1228 posix_memalign
1229 rdtsc
1230 sched_getaffinity
1231 sdl
1232 sdl_video_size
1233 setmode
1234 setrlimit
1235 Sleep
1236 sndio_h
1237 socklen_t
1238 soundcard_h
1239 strerror_r
1240 strptime
1241 strtok_r
1242 struct_addrinfo
1243 struct_group_source_req
1244 struct_ip_mreq_source
1245 struct_ipv6_mreq
1246 struct_pollfd
1247 struct_rusage_ru_maxrss
1248 struct_sockaddr_in6
1249 struct_sockaddr_sa_len
1250 struct_sockaddr_storage
1251 struct_v4l2_frmivalenum_discrete
1252 symver_asm_label
1253 symver_gnu_asm
1254 sysconf
1255 sysctl
1256 sys_mman_h
1257 sys_param_h
1258 sys_resource_h
1259 sys_select_h
1260 sys_soundcard_h
1261 sys_time_h
1262 sys_videoio_h
1263 threads
1264 unistd_h
1265 usleep
1266 vfp_args
1267 VirtualAlloc
1268 windows_h
1269 winsock2_h
1270 xform_asm
1271 xmm_clobbers
1272 "
1273
1274 # options emitted with CONFIG_ prefix but not available on command line
1275 CONFIG_EXTRA="
1276 aandcttables
1277 ac3dsp
1278 avutil
1279 error_resilience
1280 gcrypt
1281 golomb
1282 gplv3
1283 h264chroma
1284 h264dsp
1285 h264pred
1286 h264qpel
1287 huffman
1288 lgplv3
1289 lpc
1290 mpegaudio
1291 mpegaudiodsp
1292 mpegvideo
1293 mpegvideoenc
1294 nettle
1295 rangecoder
1296 rtpdec
1297 sinewin
1298 vp3dsp
1299 "
1300
1301 CMDLINE_SELECT="
1302 $ARCH_EXT_LIST
1303 $CONFIG_LIST
1304 $HAVE_LIST_CMDLINE
1305 $THREADS_LIST
1306 asm
1307 cross_compile
1308 debug
1309 extra_warnings
1310 logging
1311 lto
1312 optimizations
1313 "
1314
1315 PATHS_LIST='
1316 bindir
1317 datadir
1318 incdir
1319 libdir
1320 mandir
1321 prefix
1322 shlibdir
1323 '
1324
1325 CMDLINE_SET="
1326 $PATHS_LIST
1327 ar
1328 arch
1329 as
1330 build_suffix
1331 cc
1332 cpu
1333 cross_prefix
1334 dep_cc
1335 extra_version
1336 host_cc
1337 host_cflags
1338 host_ld
1339 host_ldflags
1340 host_libs
1341 host_os
1342 ld
1343 logfile
1344 malloc_prefix
1345 nm
1346 optflags
1347 pkg_config
1348 random_seed
1349 samples
1350 sysinclude
1351 sysroot
1352 target_exec
1353 target_os
1354 target_path
1355 toolchain
1356 "
1357
1358 CMDLINE_APPEND="
1359 extra_cflags
1360 "
1361
1362 # code dependency declarations
1363
1364 # architecture extensions
1365
1366 armv5te_deps="arm"
1367 armv6_deps="arm"
1368 armv6t2_deps="arm"
1369 armvfp_deps="arm"
1370 neon_deps="arm"
1371 vfpv3_deps="armvfp"
1372
1373 altivec_deps="ppc"
1374 ppc4xx_deps="ppc"
1375
1376 vis_deps="sparc"
1377
1378 x86_64_suggest="cmov fast_cmov"
1379
1380 amd3dnow_deps="mmx"
1381 amd3dnowext_deps="amd3dnow"
1382 mmx_deps="x86"
1383 mmxext_deps="mmx"
1384 sse_deps="mmxext"
1385 sse2_deps="sse"
1386 sse3_deps="sse2"
1387 ssse3_deps="sse3"
1388 sse4_deps="ssse3"
1389 sse42_deps="sse4"
1390 avx_deps="sse42"
1391 fma4_deps="avx"
1392
1393 mmx_external_deps="yasm"
1394 mmx_inline_deps="inline_asm"
1395 mmx_suggest="mmx_external mmx_inline"
1396
1397 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1398 eval dep=\$${ext}_deps
1399 eval ${ext}_external_deps='"${dep}_external"'
1400 eval ${ext}_inline_deps='"${dep}_inline"'
1401 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1402 done
1403
1404 aligned_stack_if_any="ppc x86"
1405 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1406 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1407 fast_unaligned_if_any="armv6 ppc x86"
1408
1409 inline_asm_deps="!tms470"
1410 need_memalign="altivec neon sse"
1411
1412 symver_if_any="symver_asm_label symver_gnu_asm"
1413
1414 log2_deps="!msvcrt"
1415
1416 # subsystems
1417 dct_select="rdft"
1418 mdct_select="fft"
1419 rdft_select="fft"
1420 mpegaudio_select="mpegaudiodsp"
1421 mpegaudiodsp_select="dct"
1422 mpegvideoenc_select="mpegvideo"
1423
1424 # decoders / encoders / hardware accelerators
1425 aac_decoder_select="mdct sinewin"
1426 aac_encoder_select="mdct sinewin"
1427 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1428 ac3_decoder_select="mdct ac3dsp ac3_parser"
1429 ac3_encoder_select="mdct ac3dsp"
1430 ac3_fixed_encoder_select="mdct ac3dsp"
1431 alac_encoder_select="lpc"
1432 amrnb_decoder_select="lsp"
1433 amrwb_decoder_select="lsp"
1434 atrac1_decoder_select="mdct sinewin"
1435 atrac3_decoder_select="mdct"
1436 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1437 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1438 cavs_decoder_select="golomb mpegvideo"
1439 cook_decoder_select="mdct sinewin"
1440 cscd_decoder_suggest="zlib"
1441 dca_decoder_select="mdct"
1442 dnxhd_encoder_select="aandcttables mpegvideoenc"
1443 dxa_decoder_select="zlib"
1444 eac3_decoder_select="ac3_decoder"
1445 eac3_encoder_select="ac3_encoder"
1446 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1447 eatgq_decoder_select="aandcttables"
1448 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1449 ffv1_decoder_select="golomb rangecoder"
1450 ffv1_encoder_select="rangecoder"
1451 ffvhuff_encoder_select="huffman"
1452 flac_decoder_select="golomb"
1453 flac_encoder_select="golomb lpc"
1454 flashsv_decoder_select="zlib"
1455 flashsv_encoder_select="zlib"
1456 flashsv2_decoder_select="zlib"
1457 flv_decoder_select="h263_decoder"
1458 flv_encoder_select="h263_encoder"
1459 fraps_decoder_select="huffman"
1460 h261_decoder_select="error_resilience mpegvideo"
1461 h261_encoder_select="aandcttables mpegvideoenc"
1462 h263_decoder_select="error_resilience h263_parser mpegvideo"
1463 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1464 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1465 h263i_decoder_select="h263_decoder"
1466 h263p_encoder_select="h263_encoder"
1467 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1468 h264_dxva2_hwaccel_deps="dxva2api_h"
1469 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1470 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1471 h264_vda_hwaccel_select="vda h264_decoder"
1472 h264_vdpau_decoder_select="vdpau h264_decoder"
1473 huffyuv_encoder_select="huffman"
1474 iac_decoder_select="fft mdct sinewin"
1475 imc_decoder_select="fft mdct sinewin"
1476 jpegls_decoder_select="golomb"
1477 jpegls_encoder_select="golomb"
1478 ljpeg_encoder_select="aandcttables mpegvideoenc"
1479 loco_decoder_select="golomb"
1480 mdec_decoder_select="error_resilience mpegvideo"
1481 mjpeg_encoder_select="aandcttables mpegvideoenc"
1482 mlp_decoder_select="mlp_parser"
1483 mp1_decoder_select="mpegaudio"
1484 mp1float_decoder_select="mpegaudio"
1485 mp2_decoder_select="mpegaudio"
1486 mp2float_decoder_select="mpegaudio"
1487 mp3_decoder_select="mpegaudio"
1488 mp3adu_decoder_select="mpegaudio"
1489 mp3adufloat_decoder_select="mpegaudio"
1490 mp3float_decoder_select="mpegaudio"
1491 mp3on4_decoder_select="mpegaudio"
1492 mp3on4float_decoder_select="mpegaudio"
1493 mpc7_decoder_select="mpegaudiodsp"
1494 mpc8_decoder_select="mpegaudiodsp"
1495 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1496 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1497 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1498 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1499 mpeg1video_decoder_select="error_resilience mpegvideo"
1500 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1501 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1502 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1503 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1504 mpeg2video_decoder_select="error_resilience mpegvideo"
1505 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1506 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1507 mpeg4_encoder_select="h263_encoder"
1508 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1509 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1510 msmpeg4v1_decoder_select="h263_decoder"
1511 msmpeg4v1_encoder_select="h263_encoder"
1512 msmpeg4v2_decoder_select="h263_decoder"
1513 msmpeg4v2_encoder_select="h263_encoder"
1514 msmpeg4v3_decoder_select="h263_decoder"
1515 msmpeg4v3_encoder_select="h263_encoder"
1516 mss2_decoder_select="vc1_decoder"
1517 nellymoser_decoder_select="mdct sinewin"
1518 nellymoser_encoder_select="mdct sinewin"
1519 png_decoder_select="zlib"
1520 png_encoder_select="zlib"
1521 qcelp_decoder_select="lsp"
1522 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1523 ra_144_encoder_select="lpc"
1524 ralf_decoder_select="golomb"
1525 rv10_decoder_select="h263_decoder"
1526 rv10_encoder_select="h263_encoder"
1527 rv20_decoder_select="h263_decoder"
1528 rv20_encoder_select="h263_encoder"
1529 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1530 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1531 shorten_decoder_select="golomb"
1532 sipr_decoder_select="lsp"
1533 snow_decoder_select="dwt rangecoder"
1534 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1535 svq1_decoder_select="error_resilience mpegvideo"
1536 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1537 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1538 svq3_decoder_suggest="zlib"
1539 theora_decoder_select="vp3_decoder"
1540 tiff_decoder_suggest="zlib"
1541 tiff_encoder_suggest="zlib"
1542 truehd_decoder_select="mlp_decoder"
1543 tscc_decoder_select="zlib"
1544 twinvq_decoder_select="mdct lsp sinewin"
1545 utvideo_encoder_select="huffman"
1546 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1547 vc1_dxva2_hwaccel_deps="dxva2api_h"
1548 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1549 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1550 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1551 vc1image_decoder_select="vc1_decoder"
1552 vorbis_decoder_select="mdct"
1553 vorbis_encoder_select="mdct"
1554 vp3_decoder_select="vp3dsp"
1555 vp5_decoder_select="vp3dsp"
1556 vp6_decoder_select="huffman vp3dsp"
1557 vp6a_decoder_select="vp6_decoder"
1558 vp6f_decoder_select="vp6_decoder"
1559 vp8_decoder_select="h264pred h264qpel"
1560 wmapro_decoder_select="mdct sinewin"
1561 wmav1_decoder_select="mdct sinewin"
1562 wmav1_encoder_select="mdct sinewin"
1563 wmav2_decoder_select="mdct sinewin"
1564 wmav2_encoder_select="mdct sinewin"
1565 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1566 wmv1_decoder_select="h263_decoder"
1567 wmv1_encoder_select="h263_encoder"
1568 wmv2_decoder_select="h263_decoder"
1569 wmv2_encoder_select="h263_encoder"
1570 wmv3_decoder_select="vc1_decoder"
1571 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1572 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1573 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1574 wmv3image_decoder_select="wmv3_decoder"
1575 zerocodec_decoder_select="zlib"
1576 zlib_decoder_select="zlib"
1577 zlib_encoder_select="zlib"
1578 zmbv_decoder_select="zlib"
1579 zmbv_encoder_select="zlib"
1580
1581 vaapi_deps="va_va_h"
1582 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1583 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1584
1585 # parsers
1586 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1587 mpeg4video_parser_select="error_resilience mpegvideo"
1588 mpegvideo_parser_select="error_resilience mpegvideo"
1589 vc1_parser_select="error_resilience mpegvideo"
1590
1591 # external libraries
1592 libfaac_encoder_deps="libfaac"
1593 libfdk_aac_encoder_deps="libfdk_aac"
1594 libgsm_decoder_deps="libgsm"
1595 libgsm_encoder_deps="libgsm"
1596 libgsm_ms_decoder_deps="libgsm"
1597 libgsm_ms_encoder_deps="libgsm"
1598 libilbc_decoder_deps="libilbc"
1599 libilbc_encoder_deps="libilbc"
1600 libmp3lame_encoder_deps="libmp3lame"
1601 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1602 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1603 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1604 libopenjpeg_decoder_deps="libopenjpeg"
1605 libopenjpeg_encoder_deps="libopenjpeg"
1606 libopus_decoder_deps="libopus"
1607 libopus_encoder_deps="libopus"
1608 libschroedinger_decoder_deps="libschroedinger"
1609 libschroedinger_encoder_deps="libschroedinger"
1610 libspeex_decoder_deps="libspeex"
1611 libspeex_encoder_deps="libspeex"
1612 libtheora_encoder_deps="libtheora"
1613 libvo_aacenc_encoder_deps="libvo_aacenc"
1614 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1615 libvorbis_encoder_deps="libvorbis"
1616 libvpx_decoder_deps="libvpx"
1617 libvpx_encoder_deps="libvpx"
1618 libx264_encoder_deps="libx264"
1619 libxavs_encoder_deps="libxavs"
1620 libxvid_encoder_deps="libxvid"
1621
1622 # demuxers / muxers
1623 ac3_demuxer_select="ac3_parser"
1624 asf_stream_muxer_select="asf_muxer"
1625 avisynth_demuxer_deps="avisynth"
1626 dirac_demuxer_select="dirac_parser"
1627 eac3_demuxer_select="ac3_parser"
1628 flac_demuxer_select="flac_parser"
1629 ipod_muxer_select="mov_muxer"
1630 matroska_audio_muxer_select="matroska_muxer"
1631 matroska_demuxer_suggest="zlib bzlib"
1632 mov_demuxer_suggest="zlib"
1633 mp3_demuxer_select="mpegaudio_parser"
1634 mp4_muxer_select="mov_muxer"
1635 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1636 mpegtsraw_demuxer_select="mpegts_demuxer"
1637 mxf_d10_muxer_select="mxf_muxer"
1638 ogg_demuxer_select="golomb"
1639 psp_muxer_select="mov_muxer"
1640 rtp_demuxer_select="sdp_demuxer"
1641 rtp_muxer_select="mpegvideo"
1642 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1643 rtsp_demuxer_select="http_protocol rtpdec"
1644 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1645 sap_demuxer_select="sdp_demuxer"
1646 sap_muxer_select="rtp_muxer rtp_protocol"
1647 sdp_demuxer_select="rtpdec"
1648 smoothstreaming_muxer_select="ismv_muxer"
1649 spdif_muxer_select="aac_parser"
1650 tg2_muxer_select="mov_muxer"
1651 tgp_muxer_select="mov_muxer"
1652 w64_demuxer_deps="wav_demuxer"
1653
1654 # indevs / outdevs
1655 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1656 alsa_outdev_deps="alsa_asoundlib_h"
1657 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1658 dv1394_indev_deps="dv1394 dv_demuxer"
1659 fbdev_indev_deps="linux_fb_h"
1660 jack_indev_deps="jack_jack_h"
1661 libcdio_indev_deps="libcdio"
1662 libdc1394_indev_deps="libdc1394"
1663 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1664 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1665 pulse_indev_deps="libpulse"
1666 sndio_indev_deps="sndio_h"
1667 sndio_outdev_deps="sndio_h"
1668 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1669 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1670 vfwcap_indev_extralibs="-lavicap32"
1671 x11grab_indev_deps="x11grab XShmCreateImage"
1672
1673 # protocols
1674 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1675 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1676 ffrtmpcrypt_protocol_select="tcp_protocol"
1677 ffrtmphttp_protocol_deps="!librtmp_protocol"
1678 ffrtmphttp_protocol_select="http_protocol"
1679 gopher_protocol_deps="network"
1680 httpproxy_protocol_deps="network"
1681 httpproxy_protocol_select="tcp_protocol"
1682 http_protocol_deps="network"
1683 http_protocol_select="tcp_protocol"
1684 https_protocol_select="tls_protocol"
1685 librtmp_protocol_deps="librtmp"
1686 librtmpe_protocol_deps="librtmp"
1687 librtmps_protocol_deps="librtmp"
1688 librtmpt_protocol_deps="librtmp"
1689 librtmpte_protocol_deps="librtmp"
1690 mmsh_protocol_select="http_protocol"
1691 mmst_protocol_deps="network"
1692 rtmp_protocol_deps="!librtmp_protocol"
1693 rtmp_protocol_select="tcp_protocol"
1694 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1695 rtmps_protocol_deps="!librtmp_protocol"
1696 rtmps_protocol_select="tls_protocol"
1697 rtmpt_protocol_select="ffrtmphttp_protocol"
1698 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1699 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1700 rtp_protocol_select="udp_protocol"
1701 sctp_protocol_deps="network struct_sctp_event_subscribe"
1702 tcp_protocol_deps="network"
1703 tls_protocol_deps_any="openssl gnutls"
1704 tls_protocol_select="tcp_protocol"
1705 udp_protocol_deps="network"
1706
1707 # filters
1708 blackframe_filter_deps="gpl"
1709 boxblur_filter_deps="gpl"
1710 cropdetect_filter_deps="gpl"
1711 delogo_filter_deps="gpl"
1712 drawtext_filter_deps="libfreetype"
1713 frei0r_filter_deps="frei0r dlopen strtok_r"
1714 frei0r_filter_extralibs='$ldl'
1715 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1716 frei0r_src_filter_extralibs='$ldl'
1717 hqdn3d_filter_deps="gpl"
1718 resample_filter_deps="avresample"
1719 ocv_filter_deps="libopencv"
1720 scale_filter_deps="swscale"
1721 yadif_filter_deps="gpl"
1722
1723 # libraries
1724 avdevice_deps="avcodec avformat"
1725 avformat_deps="avcodec"
1726
1727 # programs
1728 avconv_deps="avcodec avfilter avformat avresample swscale
1729 aformat_filter asyncts_filter
1730 format_filter fps_filter scale_filter setpts_filter"
1731 avplay_deps="avcodec avformat swscale sdl"
1732 avplay_select="rdft"
1733 avprobe_deps="avcodec avformat"
1734 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1735 avserver_extralibs='$ldl'
1736
1737 doc_deps="texi2html"
1738
1739 # default parameters
1740
1741 logfile="config.log"
1742
1743 # installation paths
1744 prefix_default="/usr/local"
1745 bindir_default='${prefix}/bin'
1746 datadir_default='${prefix}/share/avconv'
1747 incdir_default='${prefix}/include'
1748 libdir_default='${prefix}/lib'
1749 mandir_default='${prefix}/share/man'
1750 shlibdir_default="$libdir_default"
1751
1752 # toolchain
1753 ar_default="ar"
1754 cc_default="gcc"
1755 host_cc_default="gcc"
1756 cp_f="cp -f"
1757 ln_s="ln -sf"
1758 nm_default="nm -g"
1759 objformat="elf"
1760 pkg_config_default=pkg-config
1761 ranlib="ranlib"
1762 yasmexe="yasm"
1763
1764 nogas=":"
1765
1766 # machine
1767 arch_default=$(uname -m)
1768 cpu="generic"
1769
1770 # OS
1771 target_os_default=$(tolower $(uname -s))
1772 host_os=$target_os_default
1773
1774 # configurable options
1775 enable $PROGRAM_LIST
1776
1777 enable avcodec
1778 enable avdevice
1779 enable avfilter
1780 enable avformat
1781 enable avresample
1782 enable avutil
1783 enable swscale
1784
1785 enable asm
1786 enable debug
1787 enable doc
1788 enable network
1789 enable optimizations
1790 enable safe_bitstream_reader
1791 enable static
1792 enable swscale_alpha
1793
1794 # build settings
1795 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1796 AVSERVERLDFLAGS=-Wl,-E
1797 LIBPREF="lib"
1798 LIBSUF=".a"
1799 FULLNAME='$(NAME)$(BUILDSUF)'
1800 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1801 SLIBPREF="lib"
1802 SLIBSUF=".so"
1803 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1804 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1805 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1806 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1807 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1808 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1809
1810 asflags_filter=echo
1811 cflags_filter=echo
1812 ldflags_filter=echo
1813
1814 AS_C='-c'
1815 AS_O='-o $@'
1816 CC_C='-c'
1817 CC_E='-E -o $@'
1818 CC_O='-o $@'
1819 LD_O='-o $@'
1820 LD_LIB='-l%'
1821 LD_PATH='-L'
1822 HOSTCC_C='-c'
1823 HOSTCC_O='-o $@'
1824 HOSTLD_O='-o $@'
1825
1826 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1827 host_libs='-lm'
1828 host_cflags_filter=echo
1829 host_ldflags_filter=echo
1830
1831 target_path='$(CURDIR)'
1832
1833 # since the object filename is not given with the -MM flag, the compiler
1834 # is only able to print the basename, and we must add the path ourselves
1835 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1836 DEPFLAGS='-MM'
1837
1838 # find source path
1839 if test -f configure; then
1840 source_path=.
1841 else
1842 source_path=$(cd $(dirname "$0"); pwd)
1843 echo "$source_path" | grep -q '[[:blank:]]' &&
1844 die "Out of tree builds are impossible with whitespace in source path."
1845 test -e "$source_path/config.h" &&
1846 die "Out of tree builds are impossible with config.h in source dir."
1847 fi
1848
1849 for v in "$@"; do
1850 r=${v#*=}
1851 l=${v%"$r"}
1852 r=$(sh_quote "$r")
1853 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1854 done
1855
1856 find_things(){
1857 thing=$1
1858 pattern=$2
1859 file=$source_path/$3
1860 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1861 }
1862
1863 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1864 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1865 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1866 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1867 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1868 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1869 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1870 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1871 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1872 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1873 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1874
1875 ALL_COMPONENTS="
1876 $BSF_LIST
1877 $DECODER_LIST
1878 $DEMUXER_LIST
1879 $ENCODER_LIST
1880 $FILTER_LIST
1881 $HWACCEL_LIST
1882 $INDEV_LIST
1883 $MUXER_LIST
1884 $OUTDEV_LIST
1885 $PARSER_LIST
1886 $PROTOCOL_LIST
1887 "
1888
1889 for n in $COMPONENT_LIST; do
1890 v=$(toupper ${n%s})_LIST
1891 eval enable \$$v
1892 eval ${n}_if_any="\$$v"
1893 done
1894
1895 disable snow_decoder snow_encoder
1896
1897 enable $ARCH_EXT_LIST
1898
1899 die_unknown(){
1900 echo "Unknown option \"$1\"."
1901 echo "See $0 --help for available options."
1902 exit 1
1903 }
1904
1905 show_list() {
1906 suffix=_$1
1907 shift
1908 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1909 exit 0
1910 }
1911
1912 rand_list(){
1913 IFS=', '
1914 set -- $*
1915 unset IFS
1916 for thing; do
1917 comp=${thing%:*}
1918 prob=${thing#$comp}
1919 prob=${prob#:}
1920 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
1921 echo "prob ${prob:-0.5}"
1922 printf '%s\n' $comp
1923 done
1924 }
1925
1926 do_random(){
1927 action=$1
1928 shift
1929 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
1930 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
1931 }
1932
1933 for opt do
1934 optval="${opt#*=}"
1935 case "$opt" in
1936 --extra-ldflags=*) add_ldflags $optval
1937 ;;
1938 --extra-libs=*) add_extralibs $optval
1939 ;;
1940 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1941 ;;
1942 --enable-debug=*) debuglevel="$optval"
1943 ;;
1944 --disable-everything)
1945 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1946 ;;
1947 --enable-random|--disable-random)
1948 action=${opt%%-random}
1949 do_random ${action#--} $COMPONENT_LIST
1950 ;;
1951 --enable-random=*|--disable-random=*)
1952 action=${opt%%-random=*}
1953 do_random ${action#--} $optval
1954 ;;
1955 --enable-*=*|--disable-*=*)
1956 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1957 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1958 eval list=\$$(toupper $thing)_LIST
1959 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1960 $action $(filter "$name" $list)
1961 ;;
1962 --enable-?*|--disable-?*)
1963 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1964 if is_in $option $COMPONENT_LIST; then
1965 test $action = disable && action=unset
1966 eval $action \$$(toupper ${option%s})_LIST
1967 elif is_in $option $CMDLINE_SELECT; then
1968 $action $option
1969 else
1970 die_unknown $opt
1971 fi
1972 ;;
1973 --list-*)
1974 NAME="${opt#--list-}"
1975 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1976 NAME=${NAME%s}
1977 eval show_list $NAME \$$(toupper $NAME)_LIST
1978 ;;
1979 --help|-h) show_help
1980 ;;
1981 *)
1982 optname="${opt%%=*}"
1983 optname="${optname#--}"
1984 optname=$(echo "$optname" | sed 's/-/_/g')
1985 if is_in $optname $CMDLINE_SET; then
1986 eval $optname='$optval'
1987 elif is_in $optname $CMDLINE_APPEND; then
1988 append $optname "$optval"
1989 else
1990 die_unknown $opt
1991 fi
1992 ;;
1993 esac
1994 done
1995
1996 disabled logging && logfile=/dev/null
1997
1998 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1999 set >> $logfile
2000
2001 test -n "$cross_prefix" && enable cross_compile
2002
2003 if enabled cross_compile; then
2004 test -n "$arch" && test -n "$target_os" ||
2005 die "Must specify target arch and OS when cross-compiling"
2006 fi
2007
2008 ar_default="${cross_prefix}${ar_default}"
2009 cc_default="${cross_prefix}${cc_default}"
2010 nm_default="${cross_prefix}${nm_default}"
2011 pkg_config_default="${cross_prefix}${pkg_config_default}"
2012 ranlib="${cross_prefix}${ranlib}"
2013
2014 sysinclude_default="${sysroot}/usr/include"
2015
2016 case "$toolchain" in
2017 clang-asan)
2018 cc_default="clang"
2019 add_cflags -faddress-sanitizer
2020 add_ldflags -faddress-sanitizer
2021 ;;
2022 clang-tsan)
2023 cc_default="clang"
2024 add_cflags -fthread-sanitizer
2025 add_ldflags -fthread-sanitizer
2026 ;;
2027 msvc)
2028 cc_default="c99wrap cl"
2029 ld_default="c99wrap link"
2030 nm_default="dumpbin -symbols"
2031 ar_default="lib"
2032 target_os_default="win32"
2033 ;;
2034 ?*)
2035 die "Unknown toolchain $toolchain"
2036 ;;
2037 esac
2038
2039 set_default arch cc pkg_config sysinclude target_os
2040 enabled cross_compile || host_cc_default=$cc
2041 set_default host_cc
2042
2043 if ! $pkg_config --version >/dev/null 2>&1; then
2044 warn "$pkg_config not found, library detection may fail."
2045 pkg_config=false
2046 fi
2047
2048 exesuf() {
2049 case $1 in
2050 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2051 esac
2052 }
2053
2054 EXESUF=$(exesuf $target_os)
2055 HOSTEXESUF=$(exesuf $host_os)
2056
2057 # set temporary file name
2058 : ${TMPDIR:=$TEMPDIR}
2059 : ${TMPDIR:=$TMP}
2060 : ${TMPDIR:=/tmp}
2061
2062 if ! check_cmd mktemp -u XXXXXX; then
2063 # simple replacement for missing mktemp
2064 # NOT SAFE FOR GENERAL USE
2065 mktemp(){
2066 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2067 }
2068 fi
2069
2070 tmpfile(){
2071 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2072 (set -C; exec > $tmp) 2>/dev/null ||
2073 die "Unable to create temporary file in $TMPDIR."
2074 append TMPFILES $tmp
2075 eval $1=$tmp
2076 }
2077
2078 trap 'rm -f -- $TMPFILES' EXIT
2079
2080 tmpfile TMPASM .asm
2081 tmpfile TMPC .c
2082 tmpfile TMPE $EXESUF
2083 tmpfile TMPH .h
2084 tmpfile TMPO .o
2085 tmpfile TMPS .S
2086 tmpfile TMPSH .sh
2087 tmpfile TMPV .ver
2088
2089 unset -f mktemp
2090
2091 chmod +x $TMPE
2092
2093 # make sure we can execute files in $TMPDIR
2094 cat > $TMPSH 2>> $logfile <<EOF
2095 #! /bin/sh
2096 EOF
2097 chmod +x $TMPSH >> $logfile 2>&1
2098 if ! $TMPSH >> $logfile 2>&1; then
2099 cat <<EOF
2100 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2101 variable to another directory and make sure that it is not mounted noexec.
2102 EOF
2103 die "Sanity test failed."
2104 fi
2105
2106 msvc_flags(){
2107 for flag; do
2108 case $flag in
2109 -fomit-frame-pointer) echo -Oy ;;
2110 -g) echo -Z7 ;;
2111 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2112 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2113 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2114 -wd4996 -wd4273 ;;
2115 -std=c99) ;;
2116 -fno-math-errno) ;;
2117 -fno-common) ;;
2118 -fno-signed-zeros) ;;
2119 -lz) echo zlib.lib ;;
2120 -lavifil32) echo vfw32.lib ;;
2121 -lavicap32) echo vfw32.lib user32.lib ;;
2122 -l*) echo ${flag#-l}.lib ;;
2123 *) echo $flag ;;
2124 esac
2125 done
2126 }
2127
2128 pgi_flags(){
2129 for flag; do
2130 case $flag in
2131 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2132 -fomit-frame-pointer) echo -Mnoframe ;;
2133 -g) echo -gopt ;;
2134 *) echo $flag ;;
2135 esac
2136 done
2137 }
2138
2139 suncc_flags(){
2140 for flag; do
2141 case $flag in
2142 -march=*|-mcpu=*)
2143 case "${flag#*=}" in
2144 native) echo -xtarget=native ;;
2145 v9|niagara) echo -xarch=sparc ;;
2146 ultrasparc) echo -xarch=sparcvis ;;
2147 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2148 i586|pentium) echo -xchip=pentium ;;
2149 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2150 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2151 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2152 pentium4*) echo -xtarget=pentium4 ;;
2153 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2154 *-sse3) echo -xarch=sse3 ;;
2155 core2) echo -xarch=ssse3 -xchip=core2 ;;
2156 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2157 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2158 k8|opteron|athlon64|athlon-fx)
2159 echo -xarch=sse2a ;;
2160 athlon*) echo -xarch=pentium_proa ;;
2161 esac
2162 ;;
2163 -std=c99) echo -xc99 ;;
2164 -fomit-frame-pointer) echo -xregs=frameptr ;;
2165 -fPIC) echo -KPIC -xcode=pic32 ;;
2166 -W*,*) echo $flag ;;
2167 -f*-*|-W*) ;;
2168 *) echo $flag ;;
2169 esac
2170 done
2171 }
2172
2173 tms470_flags(){
2174 for flag; do
2175 case $flag in
2176 -march=*|-mcpu=*)
2177 case "${flag#*=}" in
2178 armv7-a|cortex-a*) echo -mv=7a8 ;;
2179 armv7-r|cortex-r*) echo -mv=7r4 ;;
2180 armv7-m|cortex-m*) echo -mv=7m3 ;;
2181 armv6*|arm11*) echo -mv=6 ;;
2182 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2183 echo -mv=5e ;;
2184 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2185 esac
2186 ;;
2187 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2188 -mfpu=vfp) echo --float_support=vfpv2 ;;
2189 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2190 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2191 -msoft-float) echo --float_support=vfplib ;;
2192 -O[0-3]|-mf=*) echo $flag ;;
2193 -g) echo -g -mn ;;
2194 -pds=*) echo $flag ;;
2195 -D*|-I*) echo $flag ;;
2196 --gcc|--abi=*) echo $flag ;;
2197 -me) echo $flag ;;
2198 esac
2199 done
2200 }
2201
2202 probe_cc(){
2203 pfx=$1
2204 _cc=$2
2205
2206 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2207 unset _ld_o _ldflags _ld_lib _ld_path
2208 unset _depflags _DEPCMD _DEPFLAGS
2209 _flags_filter=echo
2210
2211 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2212 _type=llvm_gcc
2213 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2214 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2215 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2216 _cflags_speed='-O3'
2217 _cflags_size='-Os'
2218 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2219 _type=gcc
2220 gcc_version=$($_cc --version | head -n1)
2221 gcc_basever=$($_cc -dumpversion)
2222 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2223 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2224 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2225 if ! $_cc -dumpversion | grep -q '^2\.'; then
2226 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2227 fi
2228 _cflags_speed='-O3'
2229 _cflags_size='-Os'
2230 elif $_cc --version 2>/dev/null | grep -q Intel; then
2231 _type=icc
2232 _ident=$($_cc --version | head -n1)
2233 _depflags='-MMD'
2234 _cflags_speed='-O3'
2235 _cflags_size='-Os'
2236 _cflags_noopt='-O1'
2237 elif $_cc -v 2>&1 | grep -q xlc; then
2238 _type=xlc
2239 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2240 _cflags_speed='-O5'
2241 _cflags_size='-O5 -qcompact'
2242 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2243 _type=ccc
2244 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2245 _DEPFLAGS='-M'
2246 debuglevel=3
2247 _ldflags='-Wl,-z,now' # calls to libots crash without this
2248 _cflags_speed='-fast'
2249 _cflags_size='-O1'
2250 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2251 test -d "$sysroot" || die "No valid sysroot specified."
2252 _type=armcc
2253 _ident=$($_cc --vsn | head -n1)
2254 armcc_conf="$PWD/armcc.conf"
2255 $_cc --arm_linux_configure \
2256 --arm_linux_config_file="$armcc_conf" \
2257 --configure_sysroot="$sysroot" \
2258 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2259 die "Error creating armcc configuration file."
2260 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2261 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2262 as_default="${cross_prefix}gcc"
2263 _depflags='-MMD'
2264 _cflags_speed='-O3'
2265 _cflags_size='-Os'
2266 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2267 _type=tms470
2268 _ident=$($_cc -version | head -n1 | tr -s ' ')
2269 _flags='--gcc --abi=eabi -me'
2270 _cc_e='-ppl -fe=$@'
2271 _cc_o='-fe=$@'
2272 _depflags='-ppa -ppd=$(@:.o=.d)'
2273 _cflags_speed='-O3 -mf=5'
2274 _cflags_size='-O3 -mf=2'
2275 _flags_filter=tms470_flags
2276 elif $_cc -v 2>&1 | grep -q clang; then
2277 _type=clang
2278 _ident=$($_cc --version | head -n1)
2279 _depflags='-MMD'
2280 _cflags_speed='-O3'
2281 _cflags_size='-Os'
2282 elif $_cc -V 2>&1 | grep -q Sun; then
2283 _type=suncc
2284 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2285 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2286 _DEPFLAGS='-xM1 -xc99'
2287 _ldflags='-std=c99'
2288 _cflags_speed='-O5'
2289 _cflags_size='-O5 -xspace'
2290 _flags_filter=suncc_flags
2291 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2292 _type=pathscale
2293 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2294 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2295 _cflags_speed='-O2'
2296 _cflags_size='-Os'
2297 _flags_filter='filter_out -Wdisabled-optimization'
2298 elif $_cc -v 2>&1 | grep -q Open64; then
2299 _type=open64
2300 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2301 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2302 _cflags_speed='-O2'
2303 _cflags_size='-Os'
2304 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2305 elif $_cc -V 2>&1 | grep -q Portland; then
2306 _type=pgi
2307 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2308 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2309 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2310 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2311 _cflags_noopt="-O1"
2312 _flags_filter=pgi_flags
2313 elif $_cc 2>&1 | grep -q Microsoft; then
2314 _type=msvc
2315 _ident=$($cc 2>&1 | head -n1)
2316 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2317 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2318 _cflags_speed="-O2"
2319 _cflags_size="-O1"
2320 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2321 if $_cc 2>&1 | grep -q Linker; then
2322 _ld_o='-out $@'
2323 else
2324 _ld_o='-Fe$@'
2325 fi
2326 _cc_o='-Fo $@'
2327 _cc_e='-P -Fi $@'
2328 _flags_filter=msvc_flags
2329 _ld_lib='lib%.a'
2330 _ld_path='-libpath:'
2331 _flags='-nologo'
2332 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2333 if [ $pfx = hostcc ]; then
2334 append _cflags -Dsnprintf=_snprintf
2335 fi
2336 fi
2337
2338 eval ${pfx}_type=\$_type
2339 eval ${pfx}_ident=\$_ident
2340 }
2341
2342 set_ccvars(){
2343 eval ${1}_C=\${_cc_c-\${${1}_C}}
2344 eval ${1}_E=\${_cc_e-\${${1}_E}}
2345 eval ${1}_O=\${_cc_o-\${${1}_O}}
2346
2347 if [ -n "$_depflags" ]; then
2348 eval ${1}_DEPFLAGS=\$_depflags
2349 else
2350 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2351 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2352 eval DEP${1}FLAGS=\$_flags
2353 fi
2354 }
2355
2356 probe_cc cc "$cc"
2357 cflags_filter=$_flags_filter
2358 cflags_speed=$_cflags_speed
2359 cflags_size=$_cflags_size
2360 cflags_noopt=$_cflags_noopt
2361 add_cflags $_flags $_cflags
2362 cc_ldflags=$_ldflags
2363 set_ccvars CC
2364
2365 probe_cc hostcc "$host_cc"
2366 host_cflags_filter=$_flags_filter
2367 add_host_cflags $_flags $_cflags
2368 set_ccvars HOSTCC
2369
2370 test -n "$cc_type" && enable $cc_type ||
2371 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2372
2373 : ${as_default:=$cc}
2374 : ${dep_cc_default:=$cc}
2375 : ${ld_default:=$cc}
2376 : ${host_ld_default:=$host_cc}
2377 set_default ar as dep_cc ld host_ld
2378
2379 probe_cc as "$as"
2380 asflags_filter=$_flags_filter
2381 add_asflags $_flags $_cflags
2382 set_ccvars AS
2383
2384 probe_cc ld "$ld"
2385 ldflags_filter=$_flags_filter
2386 add_ldflags $_flags $_ldflags
2387 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2388 LD_O=${_ld_o-$LD_O}
2389 LD_LIB=${_ld_lib-$LD_LIB}
2390 LD_PATH=${_ld_path-$LD_PATH}
2391
2392 probe_cc hostld "$host_ld"
2393 host_ldflags_filter=$_flags_filter
2394 add_host_ldflags $_flags $_ldflags
2395 HOSTLD_O=${_ld_o-$HOSTLD_O}
2396
2397 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2398 probe_cc depcc "$dep_cc"
2399 CCDEP=${_DEPCMD:-$DEPCMD}
2400 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2401 DEPCCFLAGS=$_flags
2402 fi
2403
2404 if $ar 2>&1 | grep -q Microsoft; then
2405 arflags="-nologo"
2406 ar_o='-out:$@'
2407 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2408 arflags="rq"
2409 ar_o='$@'
2410 else
2411 arflags="rc"
2412 ar_o='$@'
2413 fi
2414
2415 add_cflags $extra_cflags
2416 add_asflags $extra_cflags
2417
2418 if test -n "$sysroot"; then
2419 case "$cc_type" in
2420 gcc|llvm_gcc|clang)
2421 add_cppflags --sysroot="$sysroot"
2422 add_ldflags --sysroot="$sysroot"
2423 ;;
2424 tms470)
2425 add_cppflags -I"$sysinclude"
2426 add_ldflags --sysroot="$sysroot"
2427 ;;
2428 esac
2429 fi
2430
2431 if test "$cpu" = host; then
2432 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2433
2434 case "$cc_type" in
2435 gcc|llvm_gcc)
2436 check_native(){
2437 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2438 sed -n "/cc1.*$1=/{
2439 s/.*$1=\\([^ ]*\\).*/\\1/
2440 p
2441 q
2442 }" $TMPE
2443 }
2444 cpu=$(check_native -march || check_native -mcpu)
2445 ;;
2446 esac
2447
2448 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2449 fi
2450
2451 # Deal with common $arch aliases
2452 case "$arch" in
2453 arm*)
2454 arch="arm"
2455 ;;
2456 mips|mipsel|IP*)
2457 arch="mips"
2458 ;;
2459 mips64*)
2460 arch="mips"
2461 subarch="mips64"
2462 ;;
2463 parisc|hppa)
2464 arch="parisc"
2465 ;;
2466 parisc64|hppa64)
2467 arch="parisc"
2468 subarch="parisc64"
2469 ;;
2470 "Power Macintosh"|ppc|powerpc)
2471 arch="ppc"
2472 ;;
2473 ppc64|powerpc64)
2474 arch="ppc"
2475 subarch="ppc64"
2476 ;;
2477 s390|s390x)
2478 arch="s390"
2479 ;;
2480 sh4|sh)
2481 arch="sh4"
2482 ;;
2483 sun4u|sparc64)
2484 arch="sparc"
2485 subarch="sparc64"
2486 ;;
2487 tilegx|tile-gx)
2488 arch="tilegx"
2489 ;;
2490 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2491 arch="x86"
2492 ;;
2493 esac
2494
2495 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2496 enable $arch
2497
2498 # Add processor-specific flags
2499 if test "$cpu" = generic; then
2500 : do nothing
2501 elif enabled ppc; then
2502
2503 case $(tolower $cpu) in
2504 601|ppc601|powerpc601)
2505 cpuflags="-mcpu=601"
2506 disable altivec
2507 ;;
2508 603*|ppc603*|powerpc603*)
2509 cpuflags="-mcpu=603"
2510 disable altivec
2511 ;;
2512 604*|ppc604*|powerpc604*)
2513 cpuflags="-mcpu=604"
2514 disable altivec
2515 ;;
2516 g3|75*|ppc75*|powerpc75*)
2517 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2518 disable altivec
2519 ;;
2520 g4|745*|ppc745*|powerpc745*)
2521 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2522 ;;
2523 74*|ppc74*|powerpc74*)
2524 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2525 ;;
2526 g5|970|ppc970|powerpc970)
2527 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2528 ;;
2529 power[3-7]*)
2530 cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2531 ;;
2532 cell)
2533 cpuflags="-mcpu=cell"
2534 enable ldbrx
2535 ;;
2536 e500mc)
2537 cpuflags="-mcpu=e500mc"
2538 disable altivec
2539 ;;
2540 e500v2)
2541 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2542 disable altivec
2543 ;;
2544 e500)
2545 cpuflags="-mcpu=8540 -mhard-float"
2546 disable altivec
2547 ;;
2548 esac
2549
2550 elif enabled x86; then
2551
2552 case $cpu in
2553 i[345]86|pentium)
2554 cpuflags="-march=$cpu"
2555 disable mmx
2556 ;;
2557 # targets that do NOT support conditional mov (cmov)
2558 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2559 cpuflags="-march=$cpu"
2560 disable cmov
2561 ;;
2562 # targets that do support conditional mov (cmov)
2563 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2564 cpuflags="-march=$cpu"
2565 enable cmov
2566 enable fast_cmov
2567 ;;
2568 # targets that do support conditional mov but on which it's slow
2569 pentium4|pentium4m|prescott|nocona)
2570 cpuflags="-march=$cpu"
2571 enable cmov
2572 disable fast_cmov
2573 ;;
2574 esac
2575
2576 elif enabled sparc; then
2577
2578 case $cpu in
2579 niagara)
2580 cpuflags="-mcpu=$cpu"
2581 disable vis
2582 ;;
2583 sparc64)
2584 cpuflags="-mcpu=v9"
2585 ;;
2586 esac
2587
2588 elif enabled arm; then
2589
2590 case $cpu in
2591 armv*)
2592 cpuflags="-march=$cpu"
2593 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2594 ;;
2595 *)
2596 cpuflags="-mcpu=$cpu"
2597 case $cpu in
2598 cortex-a*) subarch=armv7a ;;
2599 cortex-r*) subarch=armv7r ;;
2600 cortex-m*) enable thumb; subarch=armv7m ;;
2601 arm11*) subarch=armv6 ;;
2602 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2603 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2604 esac
2605 ;;
2606 esac
2607
2608 elif enabled alpha; then
2609
2610 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2611
2612 elif enabled bfin; then
2613
2614 cpuflags="-mcpu=$cpu"
2615
2616 elif enabled mips; then
2617
2618 cpuflags="-march=$cpu"
2619
2620 elif enabled avr32; then
2621
2622 case $cpu in
2623 ap7[02]0[0-2])
2624 subarch="avr32_ap"
2625 cpuflags="-mpart=$cpu"
2626 ;;
2627 ap)
2628 subarch="avr32_ap"
2629 cpuflags="-march=$cpu"
2630 ;;
2631 uc3[ab]*)
2632 subarch="avr32_uc"
2633 cpuflags="-mcpu=$cpu"
2634 ;;
2635 uc)
2636 subarch="avr32_uc"
2637 cpuflags="-march=$cpu"
2638 ;;
2639 esac
2640
2641 fi
2642
2643 add_cflags $cpuflags
2644 add_asflags $cpuflags
2645
2646 # compiler sanity check
2647 check_exec <<EOF
2648 int main(void){ return 0; }
2649 EOF
2650 if test "$?" != 0; then
2651 echo "$cc is unable to create an executable file."
2652 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2653 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2654 echo "Only do this if you know what cross compiling means."
2655 fi
2656 die "C compiler test failed."
2657 fi
2658
2659 add_cppflags -D_ISOC99_SOURCE
2660 check_cflags -std=c99
2661 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2662 #include <stdlib.h>
2663 EOF
2664 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2665 #include <stdlib.h>
2666 EOF
2667
2668 check_host_cflags -std=c99
2669 check_host_cflags -Wall
2670
2671 check_64bit(){
2672 arch32=$1
2673 arch64=$2
2674 expr=$3
2675 check_code cc "" "int test[2*($expr) - 1]" &&
2676 subarch=$arch64 || subarch=$arch32
2677 }
2678
2679 case "$arch" in
2680 alpha|ia64|mips|parisc|sparc)
2681 spic=$shared
2682 ;;
2683 x86)
2684 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
2685 if test "$subarch" = "x86_64"; then
2686 spic=$shared
2687 fi
2688 ;;
2689 esac
2690
2691 enable $subarch
2692 enabled spic && enable pic
2693
2694 # OS specific
2695 case $target_os in
2696 haiku)
2697 prefix_default="/boot/common"
2698 network_extralibs="-lnetwork"
2699 host_libs=
2700 ;;
2701 sunos)
2702 AVSERVERLDFLAGS=""
2703 SHFLAGS='-shared -Wl,-h,$$(@F)'
2704 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2705 network_extralibs="-lsocket -lnsl"
2706 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2707 # When using suncc to build, the Solaris linker will mark
2708 # an executable with each instruction set encountered by
2709 # the Solaris assembler. As our libraries contain their own
2710 # guards for processor-specific code, instead suppress
2711 # generation of the HWCAPS ELF section on Solaris x86 only.
2712 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2713 nm_default='nm -P -g'
2714 ;;
2715 netbsd)
2716 disable symver
2717 oss_indev_extralibs="-lossaudio"
2718 oss_outdev_extralibs="-lossaudio"
2719 ;;
2720 openbsd|bitrig)
2721 # On OpenBSD 4.5. the compiler does not use PIC unless
2722 # explicitly using -fPIC. Libav builds fine without PIC,
2723 # however the generated executable will not do anything
2724 # (simply quits with exit-code 1, no crash, no output).
2725 # Thus explicitly enable PIC here.
2726 enable pic
2727 disable symver
2728 SHFLAGS='-shared'
2729 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2730 SLIB_INSTALL_LINKS=
2731 oss_indev_extralibs="-lossaudio"
2732 oss_outdev_extralibs="-lossaudio"
2733 ;;
2734 dragonfly)
2735 disable symver
2736 ;;
2737 freebsd)
2738 ;;
2739 bsd/os)
2740 add_extralibs -lpoll -lgnugetopt
2741 ;;
2742 darwin)
2743 gas="gas-preprocessor.pl $cc"
2744 enabled ppc && add_asflags -force_cpusubtype_ALL
2745 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2746 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2747 add_ldflags -Wl,-dynamic,-search_paths_first
2748 SLIBSUF=".dylib"
2749 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2750 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2751 AVSERVERLDFLAGS=-Wl,-bind_at_load
2752 objformat="macho"
2753 enabled x86_64 && objformat="macho64"
2754 enabled_any pic shared ||
2755 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2756 ;;
2757 mingw32*)
2758 if test $target_os = "mingw32ce"; then
2759 disable network
2760 else
2761 target_os=mingw32
2762 fi
2763 LIBTARGET=i386
2764 if enabled x86_64; then
2765 LIBTARGET="i386:x86-64"
2766 elif enabled arm; then
2767 LIBTARGET=arm-wince
2768 fi
2769 shlibdir_default="$bindir_default"
2770 SLIBPREF=""
2771 SLIBSUF=".dll"
2772 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2773 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2774 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2775 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2776 SLIB_INSTALL_LINKS=
2777 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2778 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2779 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2780 objformat="win32"
2781 dlltool="${cross_prefix}dlltool"
2782 ranlib=:
2783 enable dos_paths
2784 add_cppflags -U__STRICT_ANSI__
2785 ;;
2786 win32|win64)
2787 if enabled shared; then
2788 # Link to the import library instead of the normal static library
2789 # for shared libs.
2790 LD_LIB='%.lib'
2791 # Cannot build shared and static libraries at the same time with
2792 # MSVC.
2793 disable static
2794 fi
2795 shlibdir_default="$bindir_default"
2796 SLIBPREF=""
2797 SLIBSUF=".dll"
2798 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2799 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2800 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
2801 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2802 SLIB_INSTALL_LINKS=
2803 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2804 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2805 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2806 objformat="win32"
2807 ranlib=:
2808 enable dos_paths
2809 ;;
2810 cygwin*)
2811 target_os=cygwin
2812 shlibdir_default="$bindir_default"
2813 SLIBPREF="cyg"
2814 SLIBSUF=".dll"
2815 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2816 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2817 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2818 SLIB_INSTALL_LINKS=
2819 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2820 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2821 objformat="win32"
2822 enable dos_paths
2823 add_cppflags -U__STRICT_ANSI__
2824 ;;
2825 *-dos|freedos|opendos)
2826 network_extralibs="-lsocket"
2827 objformat="coff"
2828 enable dos_paths
2829 add_cppflags -U__STRICT_ANSI__
2830 ;;
2831 linux)
2832 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2833 enable dv1394
2834 ;;
2835 irix*)
2836 target_os=irix
2837 ranlib="echo ignoring ranlib"
2838 ;;
2839 os/2*)
2840 ln_s="cp -f"
2841 objformat="aout"
2842 add_cppflags -D_GNU_SOURCE
2843 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2844 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2845 AVSERVERLDFLAGS=""
2846 LIBSUF="_s.a"
2847 SLIBPREF=""
2848 SLIBSUF=".dll"
2849 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2850 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2851 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2852 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2853 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2854 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2855 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2856 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2857 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2858 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2859 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2860 enable dos_paths
2861 ;;
2862 gnu/kfreebsd)
2863 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2864 ;;
2865 gnu)
2866 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2867 ;;
2868 qnx)
2869 add_cppflags -D_QNX_SOURCE
2870 network_extralibs="-lsocket"
2871 ;;
2872 symbian)
2873 SLIBSUF=".dll"
2874 enable dos_paths
2875 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2876 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2877 add_ldflags -Wl,--target1-abs,--no-undefined \
2878 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2879 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2880 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2881 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2882 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2883 ;;
2884 osf1)
2885 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
2886 AVSERVERLDFLAGS=
2887 ;;
2888 minix)
2889 ;;
2890 plan9)
2891 add_cppflags -D_C99_SNPRINTF_EXTENSION \
2892 -D_REENTRANT_SOURCE \
2893 -D_RESEARCH_SOURCE \
2894 -DFD_SETSIZE=96 \
2895 -DHAVE_SOCK_OPTS
2896 add_compat strtod.o strtod=avpriv_strtod
2897 network_extralibs='-lbsd'
2898 exeobjs=compat/plan9/main.o
2899 disable avserver
2900 ln_s='ln -s -f'
2901 cp_f='cp'
2902 ;;
2903 none)
2904 ;;
2905 *)
2906 die "Unknown OS '$target_os'."
2907 ;;
2908 esac
2909
2910 # determine libc flavour
2911
2912 if check_cpp_condition features.h "defined __UCLIBC__"; then
2913 libc_type=uclibc
2914 elif check_cpp_condition features.h "defined __GLIBC__"; then
2915 libc_type=glibc
2916 elif check_header _mingw.h; then
2917 libc_type=mingw
2918 check_cpp_condition _mingw.h \
2919 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
2920 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2921 die "ERROR: MinGW runtime version must be >= 3.15."
2922 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
2923 libc_type=newlib
2924 elif check_func_headers stdlib.h _get_doserrno; then
2925 libc_type=msvcrt
2926 add_compat strtod.o strtod=avpriv_strtod
2927 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
2928 _snprintf=avpriv_snprintf \
2929 vsnprintf=avpriv_vsnprintf
2930 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
2931 libc_type=klibc
2932 fi
2933
2934 test -n "$libc_type" && enable $libc_type
2935
2936 # hacks for compiler/libc/os combinations
2937
2938 if enabled_all tms470 glibc; then
2939 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
2940 add_cppflags -D__USER_LABEL_PREFIX__=
2941 add_cppflags -D__builtin_memset=memset
2942 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
2943 add_cflags -pds=48 # incompatible redefinition of macro
2944 fi
2945
2946 esc(){
2947 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2948 }
2949
2950 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2951
2952 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2953
2954 set_default $PATHS_LIST
2955 set_default nm
2956
2957 # we need to build at least one lib type
2958 if ! enabled_any static shared; then
2959 cat <<EOF
2960 At least one library type must be built.
2961 Specify --enable-static to build the static libraries or --enable-shared to
2962 build the shared libraries as well. To only build the shared libraries specify
2963 --disable-static in addition to --enable-shared.
2964 EOF
2965 exit 1;
2966 fi
2967
2968 die_license_disabled() {
2969 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2970 }
2971
2972 die_license_disabled gpl libcdio
2973 die_license_disabled gpl libx264
2974 die_license_disabled gpl libxavs
2975 die_license_disabled gpl libxvid
2976 die_license_disabled gpl x11grab
2977
2978 die_license_disabled nonfree libfaac
2979 die_license_disabled nonfree libfdk_aac
2980 die_license_disabled nonfree openssl
2981
2982 die_license_disabled version3 libopencore_amrnb
2983 die_license_disabled version3 libopencore_amrwb
2984 die_license_disabled version3 libvo_aacenc
2985 die_license_disabled version3 libvo_amrwbenc
2986
2987 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2988
2989 disabled optimizations || check_cflags -fomit-frame-pointer
2990
2991 enable_pic() {
2992 enable pic
2993 add_cppflags -DPIC
2994 add_cflags -fPIC
2995 add_asflags -fPIC
2996 }
2997
2998 enabled pic && enable_pic
2999
3000 check_cc <<EOF || die "Symbol mangling check failed."
3001 int ff_extern;
3002 EOF
3003 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3004 extern_prefix=${sym%%ff_extern*}
3005
3006 check_cc <<EOF && enable_weak inline_asm
3007 void foo(void) { __asm__ volatile ("" ::); }
3008 EOF
3009
3010 _restrict=
3011 for restrict_keyword in restrict __restrict__ __restrict; do
3012 check_cc <<EOF && _restrict=$restrict_keyword && break
3013 void foo(char * $restrict_keyword p);
3014 EOF
3015 done
3016
3017 check_cc <<EOF && enable attribute_packed
3018 struct { int x; } __attribute__((packed)) x;
3019 EOF
3020
3021 check_cc <<EOF && enable attribute_may_alias
3022 union { int x; } __attribute__((may_alias)) x;
3023 EOF
3024
3025 check_cc <<EOF || die "endian test failed"
3026 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3027 EOF
3028 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3029
3030 if enabled alpha; then
3031
3032 check_cflags -mieee
3033
3034 elif enabled arm; then
3035
3036 enabled thumb && check_cflags -mthumb || check_cflags -marm
3037 nogas=die
3038
3039 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3040 enable vfp_args
3041 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3042 case "${cross_prefix:-$cc}" in
3043 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3044 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3045 __asm__ (".eabi_attribute 28, 1");
3046 int main(void) { return 0; }
3047 EOF
3048 esac
3049 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3050 fi
3051
3052 enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3053 enabled armv6 && check_inline_asm armv6 '"sadd16 r0, r0, r0"'
3054 enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3055 enabled armvfp && check_inline_asm armvfp '"fadds s0, s0, s0"'
3056 enabled neon && check_inline_asm neon '"vadd.i16 q0, q0, q0"'
3057 enabled vfpv3 && check_inline_asm vfpv3 '"vmov.f32 s0, #1.0"'
3058
3059 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3060 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3061
3062 enabled_all armv6t2 shared !pic && enable_pic
3063
3064 elif enabled mips; then
3065
3066 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3067
3068 elif enabled ppc; then
3069
3070 enable local_aligned_8 local_aligned_16
3071
3072 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3073 check_inline_asm ibm_asm '"add 0, 0, 0"'
3074 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3075 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3076
3077 # AltiVec flags: The FSF version of GCC differs from the Apple version
3078 if enabled altivec; then
3079 nogas=warn
3080 check_cflags -maltivec -mabi=altivec &&
3081 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3082 check_cflags -faltivec
3083
3084 # check if our compiler supports Motorola AltiVec C API
3085 check_cc <<EOF || disable altivec
3086 $inc_altivec_h
3087 int main(void) {
3088 vector signed int v1 = (vector signed int) { 0 };
3089 vector signed int v2 = (vector signed int) { 1 };
3090 v1 = vec_add(v1, v2);
3091 return 0;
3092 }
3093 EOF
3094
3095 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3096 fi
3097
3098 elif enabled sparc; then
3099
3100 enabled vis &&
3101 check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3102 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3103
3104 elif enabled x86; then
3105
3106 check_code ld intrin.h "__rdtsc()" && enable rdtsc
3107
3108 check_code ld mmintrin.h "_mm_empty()" && enable mm_empty
3109
3110 enable local_aligned_8 local_aligned_16
3111
3112 # check whether EBP is available on x86
3113 # As 'i' is stored on the stack, this program will crash
3114 # if the base pointer is used to access it because the
3115 # base pointer is cleared in the inline assembly code.
3116 check_exec_crash <<EOF && enable ebp_available
3117 volatile int i=0;
3118 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3119 return i;
3120 EOF
3121
3122 # check whether EBX is available on x86
3123 check_inline_asm ebx_available '""::"b"(0)' &&
3124 check_inline_asm ebx_available '"":::"%ebx"'
3125
3126 # check whether xmm clobbers are supported
3127 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3128
3129 # check whether binutils is new enough to compile SSSE3/MMXEXT
3130 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3131 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3132
3133 if ! disabled_any asm mmx yasm; then
3134 if check_cmd $yasmexe --version; then
3135 enabled x86_64 && yasm_extra="-m amd64"
3136 yasm_debug="-g dwarf2"
3137 elif check_cmd nasm -v; then
3138 yasmexe=nasm
3139 yasm_debug="-g -F dwarf"
3140 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3141 fi
3142
3143 YASMFLAGS="-f $objformat $yasm_extra"
3144 enabled pic && append YASMFLAGS "-DPIC"
3145 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3146 case "$objformat" in
3147 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3148 esac
3149
3150 check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3151 die "yasm not found, use --disable-yasm for a crippled build"
3152 check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx_external
3153 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3154 check_yasm "CPU amdnop" && enable cpunop
3155 fi
3156
3157 case "$cpu" in
3158 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3159 disable fast_clz
3160 ;;
3161 esac
3162
3163 fi
3164
3165 if enabled asm; then
3166 as=${gas:=$as}
3167 check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3168 $nogas "GNU assembler not found, install gas-preprocessor"
3169 fi
3170
3171 check_ldflags -Wl,--as-needed
3172
3173 if check_func dlopen; then
3174 ldl=
3175 elif check_func dlopen -ldl; then
3176 ldl=-ldl
3177 fi
3178
3179 if enabled network; then
3180 check_type "sys/types.h sys/socket.h" socklen_t
3181 check_type netdb.h "struct addrinfo"
3182 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3183 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3184 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3185 check_type netinet/in.h "struct sockaddr_in6"
3186 check_type poll.h "struct pollfd"
3187 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3188 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3189 check_type netinet/sctp.h "struct sctp_event_subscribe"
3190 check_func getaddrinfo $network_extralibs
3191 check_func getservbyport $network_extralibs
3192 # Prefer arpa/inet.h over winsock2
3193 if check_header arpa/inet.h ; then
3194 check_func closesocket
3195 elif check_header winsock2.h ; then
3196 check_func_headers winsock2.h closesocket -lws2 &&
3197 network_extralibs="-lws2" ||
3198 { check_func_headers winsock2.h closesocket -lws2_32 &&
3199 network_extralibs="-lws2_32"; }
3200 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3201 check_type ws2tcpip.h socklen_t
3202 check_type ws2tcpip.h "struct addrinfo"
3203 check_type ws2tcpip.h "struct group_source_req"
3204 check_type ws2tcpip.h "struct ip_mreq_source"
3205 check_type ws2tcpip.h "struct ipv6_mreq"
3206 check_type winsock2.h "struct pollfd"
3207 check_type ws2tcpip.h "struct sockaddr_in6"
3208 check_type ws2tcpip.h "struct sockaddr_storage"
3209 check_struct winsock2.h "struct sockaddr" sa_len
3210 else
3211 disable network
3212 fi
3213 fi
3214
3215 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3216 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3217
3218 check_func fcntl
3219 check_func fork
3220 check_func gethrtime
3221 check_func getopt
3222 check_func getrusage
3223 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3224 check_func gettimeofday
3225 check_func inet_aton $network_extralibs
3226 check_func isatty
3227 check_func localtime_r
3228 check_func ${malloc_prefix}memalign && enable memalign
3229 check_func mkstemp
3230 check_func mmap
3231 check_func mprotect
3232 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3233 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3234 check_func setrlimit
3235 check_func strerror_r
3236 check_func strptime
3237 check_func strtok_r
3238 check_func sched_getaffinity
3239 check_func sysconf
3240 check_func sysctl
3241 check_func usleep
3242 check_func_headers io.h setmode
3243 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3244 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3245 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3246 check_func_headers windows.h GetProcessAffinityMask
3247 check_func_headers windows.h GetProcessTimes
3248 check_func_headers windows.h GetSystemTimeAsFileTime
3249 check_func_headers windows.h MapViewOfFile
3250 check_func_headers windows.h Sleep
3251 check_func_headers windows.h VirtualAlloc
3252
3253 check_header direct.h
3254 check_header dlfcn.h
3255 check_header dxva.h
3256 check_header dxva2api.h
3257 check_header io.h
3258 check_header malloc.h
3259 check_header poll.h
3260 check_header sys/mman.h
3261 check_header sys/param.h
3262 check_header sys/resource.h
3263 check_header sys/select.h
3264 check_header sys/time.h
3265 check_header unistd.h
3266 check_header vdpau/vdpau.h
3267 check_header vdpau/vdpau_x11.h
3268 check_header windows.h
3269 check_header X11/extensions/XvMClib.h
3270
3271 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3272 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3273
3274 if ! disabled w32threads && ! enabled pthreads; then
3275 check_func _beginthreadex && enable w32threads
3276 fi
3277
3278 # check for some common methods of building with pthread support
3279 # do this before the optional library checks as some of them require pthreads
3280 if ! disabled pthreads && ! enabled w32threads; then
3281 enable pthreads
3282 if check_func pthread_create; then
3283 :
3284 elif check_func pthread_create -pthread; then
3285 add_cflags -pthread
3286 add_extralibs -pthread
3287 elif check_func pthread_create -pthreads; then
3288 add_cflags -pthreads
3289 add_extralibs -pthreads
3290 elif check_func pthread_create -lpthreadGC2; then
3291 add_extralibs -lpthreadGC2
3292 elif ! check_lib pthread.h pthread_create -lpthread; then
3293 disable pthreads
3294 fi
3295 fi
3296
3297 for thread in $THREADS_LIST; do
3298 if enabled $thread; then
3299 test -n "$thread_type" &&
3300 die "ERROR: Only one thread type must be selected." ||
3301 thread_type="$thread"
3302 fi
3303 done
3304
3305 check_lib math.h sin -lm && LIBM="-lm"
3306 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3307
3308 for func in $MATH_FUNCS; do
3309 check_mathfunc $func
3310 done
3311
3312 # these are off by default, so fail if requested and not available
3313 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3314 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3315 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3316 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3317 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3318 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3319 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
3320 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3321 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3322 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3323 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3324 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3325 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3326 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3327 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3328 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3329 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3330 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3331 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3332 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3333 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3334 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3335 enabled libvpx && {
3336 enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3337 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3338 enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
3339 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
3340 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3341 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3342 die "ERROR: libx264 version must be >= 0.118."; }
3343 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3344 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3345 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3346 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3347 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3348 die "ERROR: openssl not found"; }
3349
3350 if enabled gnutls; then
3351 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3352 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3353 fi
3354
3355 # libdc1394 check
3356 if enabled libdc1394; then
3357 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3358 enable libdc1394_2; } ||
3359 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3360 enable libdc1394_1; } ||
3361 die "ERROR: No version of libdc1394 found "
3362 fi
3363
3364 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3365 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3366 enable sdl &&
3367 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3368 fi
3369
3370 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3371
3372 check_header linux/fb.h
3373 check_header linux/videodev2.h
3374 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3375
3376 check_header sys/videoio.h
3377
3378 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3379 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3380 # w32api 3.12 had it defined wrong
3381 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3382
3383 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3384 { check_header dev/bktr/ioctl_meteor.h &&
3385 check_header dev/bktr/ioctl_bt848.h; } ||
3386 { check_header machine/ioctl_meteor.h &&
3387 check_header machine/ioctl_bt848.h; } ||
3388 { check_header dev/video/meteor/ioctl_meteor.h &&
3389 check_header dev/video/bktr/ioctl_bt848.h; } ||
3390 check_header dev/ic/bt8xx.h
3391
3392 check_header sndio.h
3393 check_header sys/soundcard.h
3394 check_header soundcard.h
3395
3396 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3397
3398 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3399 check_func jack_port_get_latency_range -ljack
3400
3401 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3402
3403 enabled libcdio &&
3404 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3405
3406 enabled x11grab &&
3407 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3408 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3409 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3410
3411 # check for VDA header
3412 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3413 enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3414 fi
3415
3416 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3417 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3418 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3419 fi
3420
3421 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3422
3423 # add some useful compiler flags if supported
3424 check_cflags -Wdeclaration-after-statement
3425 check_cflags -Wall
3426 check_cflags -Wno-parentheses
3427 check_cflags -Wno-switch
3428 check_cflags -Wno-format-zero-length
3429 check_cflags -Wdisabled-optimization
3430 check_cflags -Wpointer-arith
3431 check_cflags -Wredundant-decls
3432 check_cflags -Wno-pointer-sign
3433 check_cflags -Wcast-qual
3434 check_cflags -Wwrite-strings
3435 check_cflags -Wtype-limits
3436 check_cflags -Wundef
3437 check_cflags -Wmissing-prototypes
3438 check_cflags -Wstrict-prototypes
3439 enabled extra_warnings && check_cflags -Winline
3440
3441 # add some linker flags
3442 check_ldflags -Wl,--warn-common
3443 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3444 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3445
3446 enabled xmm_clobber_test &&
3447 check_ldflags -Wl,--wrap,avcodec_open2 \
3448 -Wl,--wrap,avcodec_decode_audio4 \
3449 -Wl,--wrap,avcodec_decode_video2 \
3450 -Wl,--wrap,avcodec_decode_subtitle2 \
3451 -Wl,--wrap,avcodec_encode_audio2 \
3452 -Wl,--wrap,avcodec_encode_video \
3453 -Wl,--wrap,avcodec_encode_subtitle \
3454 -Wl,--wrap,sws_scale ||
3455 disable xmm_clobber_test
3456
3457 echo "X{};" > $TMPV
3458 if test_ldflags -Wl,--version-script,$TMPV; then
3459 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3460 check_cc <<EOF && enable symver_asm_label
3461 void ff_foo(void) __asm__ ("av_foo@VERSION");
3462 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3463 EOF
3464 check_cc <<EOF && enable symver_gnu_asm
3465 __asm__(".symver ff_foo,av_foo@VERSION");
3466 void ff_foo(void) {}
3467 EOF
3468 fi
3469
3470 if [ -z "$optflags" ]; then
3471 if enabled small; then
3472 optflags=$cflags_size
3473 elif enabled optimizations; then
3474 optflags=$cflags_speed
3475 else
3476 optflags=$cflags_noopt
3477 fi
3478 fi
3479
3480 check_optflags(){
3481 check_cflags "$@"
3482 enabled lto && check_ldflags "$@"
3483 }
3484
3485
3486 if enabled lto; then
3487 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3488 check_cflags -flto
3489 check_ldflags -flto $cpuflags
3490 fi
3491
3492 check_optflags $optflags
3493 check_optflags -fno-math-errno
3494 check_optflags -fno-signed-zeros
3495
3496 if enabled icc; then
3497 # Just warnings, no remarks
3498 check_cflags -w1
3499 # -wd: Disable following warnings
3500 # 144, 167, 556: -Wno-pointer-sign
3501 # 1292: attribute "foo" ignored
3502 # 1419: external declaration in primary source file
3503 # 10006: ignoring unknown option -fno-signed-zeros
3504 # 10148: ignoring unknown option -Wno-parentheses
3505 # 10156: ignoring option '-W'; no argument required
3506 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3507 # 11030: Warning unknown option --as-needed
3508 # 10156: ignoring option '-export'; no argument required
3509 check_ldflags -wd10156,11030
3510 # Allow to compile with optimizations
3511 check_ldflags -march=$cpu
3512 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3513 enable ebp_available
3514 if enabled x86_32; then
3515 icc_version=$($cc -dumpversion)
3516 test ${icc_version%%.*} -ge 11 &&
3517 check_cflags -falign-stack=maintain-16-byte ||
3518 disable aligned_stack
3519 fi
3520 elif enabled ccc; then
3521 # disable some annoying warnings
3522 add_cflags -msg_disable cvtu32to64
3523 add_cflags -msg_disable embedcomment
3524 add_cflags -msg_disable needconstext
3525 add_cflags -msg_disable nomainieee
3526 add_cflags -msg_disable ptrmismatch1
3527 add_cflags -msg_disable unreachcode
3528 elif enabled gcc; then
3529 check_optflags -fno-tree-vectorize
3530 check_cflags -Werror=implicit-function-declaration
3531 check_cflags -Werror=missing-prototypes
3532 check_cflags -Werror=declaration-after-statement
3533 check_cflags -Werror=vla
3534 elif enabled llvm_gcc; then
3535 check_cflags -mllvm -stack-alignment=16
3536 elif enabled clang; then
3537 check_cflags -mllvm -stack-alignment=16
3538 check_cflags -Qunused-arguments
3539 elif enabled armcc; then
3540 # 2523: use of inline assembler is deprecated
3541 add_cflags -W${armcc_opt},--diag_suppress=2523
3542 add_cflags -W${armcc_opt},--diag_suppress=1207
3543 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3544 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3545 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
3546 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
3547 elif enabled tms470; then
3548 add_cflags -pds=824 -pds=837
3549 elif enabled pathscale; then
3550 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3551 elif enabled msvc; then
3552 enabled x86_32 && disable aligned_stack
3553 fi
3554
3555 case $target_os in
3556 plan9)
3557 add_cppflags -Dmain=plan9_main
3558 ;;
3559 esac
3560
3561 enabled_any $THREADS_LIST && enable threads
3562
3563 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3564
3565 check_deps $CONFIG_LIST \
3566 $CONFIG_EXTRA \
3567 $HAVE_LIST \
3568 $ALL_COMPONENTS \
3569
3570 ! enabled_any memalign posix_memalign aligned_malloc &&
3571 enabled_any $need_memalign && enable memalign_hack
3572
3573 echo "install prefix $prefix"
3574 echo "source path $source_path"
3575 echo "C compiler $cc"
3576 echo "ARCH $arch ($cpu)"
3577 if test "$build_suffix" != ""; then
3578 echo "build suffix $build_suffix"
3579 fi
3580 if test "$extra_version" != ""; then
3581 echo "version string suffix $extra_version"
3582 fi
3583 echo "big-endian ${bigendian-no}"
3584 echo "runtime cpu detection ${runtime_cpudetect-no}"
3585 if enabled x86; then
3586 echo "${yasmexe} ${yasm-no}"
3587 echo "MMX enabled ${mmx-no}"
3588 echo "MMXEXT enabled ${mmxext-no}"
3589 echo "3DNow! enabled ${amd3dnow-no}"
3590 echo "3DNow! extended enabled ${amd3dnowext-no}"
3591 echo "SSE enabled ${sse-no}"
3592 echo "SSSE3 enabled ${ssse3-no}"
3593 echo "AVX enabled ${avx-no}"
3594 echo "FMA4 enabled ${fma4-no}"
3595 echo "CMOV enabled ${cmov-no}"
3596 echo "CMOV is fast ${fast_cmov-no}"
3597 echo "EBX available ${ebx_available-no}"
3598 echo "EBP available ${ebp_available-no}"
3599 fi
3600 if enabled arm; then
3601 echo "ARMv5TE enabled ${armv5te-no}"
3602 echo "ARMv6 enabled ${armv6-no}"
3603 echo "ARMv6T2 enabled ${armv6t2-no}"
3604 echo "ARM VFP enabled ${armvfp-no}"
3605 echo "NEON enabled ${neon-no}"
3606 fi
3607 if enabled ppc; then
3608 echo "AltiVec enabled ${altivec-no}"
3609 echo "PPC 4xx optimizations ${ppc4xx-no}"
3610 echo "dcbzl available ${dcbzl-no}"
3611 fi
3612 if enabled sparc; then
3613 echo "VIS enabled ${vis-no}"
3614 fi
3615 echo "debug symbols ${debug-no}"
3616 echo "optimize for size ${small-no}"
3617 echo "optimizations ${optimizations-no}"
3618 echo "static ${static-no}"
3619 echo "shared ${shared-no}"
3620 echo "new filter support ${avfilter-no}"
3621 echo "network support ${network-no}"
3622 echo "threading support ${thread_type-no}"
3623 echo "safe bitstream reader ${safe_bitstream_reader-no}"
3624 echo "SDL support ${sdl-no}"
3625 echo "libdxva2 enabled ${dxva2-no}"
3626 echo "libva enabled ${vaapi-no}"
3627 echo "libvdpau enabled ${vdpau-no}"
3628 echo "AVISynth enabled ${avisynth-no}"
3629 echo "frei0r enabled ${frei0r-no}"
3630 echo "gnutls enabled ${gnutls-no}"
3631 echo "libcdio support ${libcdio-no}"
3632 echo "libdc1394 support ${libdc1394-no}"
3633 echo "libfaac enabled ${libfaac-no}"
3634 echo "libfdk-aac enabled ${libfdk_aac-no}"
3635 echo "libgsm enabled ${libgsm-no}"
3636 echo "libilbc enabled ${libilbc-no}"
3637 echo "libmp3lame enabled ${libmp3lame-no}"
3638 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3639 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3640 echo "libopencv support ${libopencv-no}"
3641 echo "libopenjpeg enabled ${libopenjpeg-no}"
3642 echo "libopus enabled ${libopus-no}"
3643 echo "libpulse enabled ${libpulse-no}"
3644 echo "librtmp enabled ${librtmp-no}"
3645 echo "libschroedinger enabled ${libschroedinger-no}"
3646 echo "libspeex enabled ${libspeex-no}"
3647 echo "libtheora enabled ${libtheora-no}"
3648 echo "libvo-aacenc support ${libvo_aacenc-no}"
3649 echo "libvo-amrwbenc support ${libvo_amrwbenc-no}"
3650 echo "libvorbis enabled ${libvorbis-no}"
3651 echo "libvpx enabled ${libvpx-no}"
3652 echo "libx264 enabled ${libx264-no}"
3653 echo "libxavs enabled ${libxavs-no}"
3654 echo "libxvid enabled ${libxvid-no}"
3655 echo "openssl enabled ${openssl-no}"
3656 echo "zlib enabled ${zlib-no}"
3657 echo "bzlib enabled ${bzlib-no}"
3658 test -n "$random_seed" &&
3659 echo "random seed ${random_seed}"
3660 echo
3661
3662 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3663 echo "Enabled ${type}s:"
3664 eval list=\$$(toupper $type)_LIST
3665 print_enabled '_*' $list | sort | pr -r -3 -t
3666 echo
3667 done
3668
3669 license="LGPL version 2.1 or later"
3670 if enabled nonfree; then
3671 license="nonfree and unredistributable"
3672 elif enabled gplv3; then
3673 license="GPL version 3 or later"
3674 elif enabled lgplv3; then
3675 license="LGPL version 3 or later"
3676 elif enabled gpl; then
3677 license="GPL version 2 or later"
3678 fi
3679
3680 echo "License: $license"