forked from FFmpeg/FFmpeg
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathconfigure
executable file
·4583 lines (4151 loc) · 138 KB
/
configure
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/bin/sh
#
# FFmpeg configure script
#
# Copyright (c) 2000-2002 Fabrice Bellard
# Copyright (c) 2005-2008 Diego Biurrun
# Copyright (c) 2005-2008 Mans Rullgard
#
# Prevent locale nonsense from breaking basic text processing.
LC_ALL=C
export LC_ALL
# make sure we are running under a compatible shell
# try to make this part work with most shells
try_exec(){
echo "Trying shell $1"
type "$1" > /dev/null 2>&1 && exec "$@"
}
unset foo
(: ${foo%%bar}) 2> /dev/null
E1="$?"
(: ${foo?}) 2> /dev/null
E2="$?"
if test "$E1" != 0 || test "$E2" = 0; then
echo "Broken shell detected. Trying alternatives."
export FF_CONF_EXEC
if test "0$FF_CONF_EXEC" -lt 1; then
FF_CONF_EXEC=1
try_exec bash "$0" "$@"
fi
if test "0$FF_CONF_EXEC" -lt 2; then
FF_CONF_EXEC=2
try_exec ksh "$0" "$@"
fi
if test "0$FF_CONF_EXEC" -lt 3; then
FF_CONF_EXEC=3
try_exec /usr/xpg4/bin/sh "$0" "$@"
fi
echo "No compatible shell script interpreter found."
echo "This configure script requires a POSIX-compatible shell"
echo "such as bash or ksh."
echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
echo "Instead, install a working POSIX-compatible shell."
echo "Disabling this configure test will create a broken FFmpeg."
if test "$BASH_VERSION" = '2.04.0(1)-release'; then
echo "This bash version ($BASH_VERSION) is broken on your platform."
echo "Upgrade to a later version if available."
fi
exit 1
fi
test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
show_help(){
cat <<EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Help options:
--help print this message
--list-decoders show all available decoders
--list-encoders show all available encoders
--list-hwaccels show all available hardware accelerators
--list-demuxers show all available demuxers
--list-muxers show all available muxers
--list-parsers show all available parsers
--list-protocols show all available protocols
--list-bsfs show all available bitstream filters
--list-indevs show all available input devices
--list-outdevs show all available output devices
--list-filters show all available filters
Standard options:
--logfile=FILE log tests and output to FILE [config.log]
--disable-logging do not log configure debug information
--fatal-warnings fail if any configure warning is generated
--prefix=PREFIX install in PREFIX [$prefix]
--bindir=DIR install binaries in DIR [PREFIX/bin]
--datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
--libdir=DIR install libs in DIR [PREFIX/lib]
--shlibdir=DIR install shared libs in DIR [PREFIX/lib]
--incdir=DIR install includes in DIR [PREFIX/include]
--mandir=DIR install man page in DIR [PREFIX/share/man]
Licensing options:
--enable-gpl allow use of GPL code, the resulting libs
and binaries will be under GPL [no]
--enable-version3 upgrade (L)GPL to version 3 [no]
--enable-nonfree allow use of nonfree code, the resulting libs
and binaries will be unredistributable [no]
Configuration options:
--disable-static do not build static libraries [no]
--enable-shared build shared libraries [no]
--enable-small optimize for size instead of speed
--disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
--enable-gray enable full grayscale support (slower color)
--disable-swscale-alpha disable alpha channel support in swscale
--disable-all disable building components, libraries and programs
Program options:
--disable-programs do not build command line programs
--disable-ffmpeg disable ffmpeg build
--disable-ffplay disable ffplay build
--disable-ffprobe disable ffprobe build
--disable-ffserver disable ffserver build
Documentation options:
--disable-doc do not build documentation
--disable-htmlpages do not build HTML documentation pages
--disable-manpages do not build man documentation pages
--disable-podpages do not build POD documentation pages
--disable-txtpages do not build text documentation pages
Component options:
--disable-avdevice disable libavdevice build
--disable-avcodec disable libavcodec build
--disable-avformat disable libavformat build
--disable-avutil disable libavutil build
--disable-swresample disable libswresample build
--disable-swscale disable libswscale build
--disable-postproc disable libpostproc build
--disable-avfilter disable libavfilter build
--enable-avresample enable libavresample build [no]
--disable-pthreads disable pthreads [auto]
--disable-w32threads disable Win32 threads [auto]
--disable-os2threads disable OS/2 threads [auto]
--enable-x11grab enable X11 grabbing [no]
--disable-network disable network support [no]
--disable-dct disable DCT code
--disable-dwt disable DWT code
--disable-lsp disable LSP code
--disable-lzo disable LZO decoder code
--disable-mdct disable MDCT code
--disable-rdft disable RDFT code
--disable-fft disable FFT code
--enable-dxva2 enable DXVA2 code
--enable-vaapi enable VAAPI code [autodetect]
--enable-vda enable VDA code [autodetect]
--enable-vdpau enable VDPAU code [autodetect]
Individual component options:
--disable-everything disable all components listed below
--disable-encoder=NAME disable encoder NAME
--enable-encoder=NAME enable encoder NAME
--disable-encoders disable all encoders
--disable-decoder=NAME disable decoder NAME
--enable-decoder=NAME enable decoder NAME
--disable-decoders disable all decoders
--disable-hwaccel=NAME disable hwaccel NAME
--enable-hwaccel=NAME enable hwaccel NAME
--disable-hwaccels disable all hwaccels
--disable-muxer=NAME disable muxer NAME
--enable-muxer=NAME enable muxer NAME
--disable-muxers disable all muxers
--disable-demuxer=NAME disable demuxer NAME
--enable-demuxer=NAME enable demuxer NAME
--disable-demuxers disable all demuxers
--enable-parser=NAME enable parser NAME
--disable-parser=NAME disable parser NAME
--disable-parsers disable all parsers
--enable-bsf=NAME enable bitstream filter NAME
--disable-bsf=NAME disable bitstream filter NAME
--disable-bsfs disable all bitstream filters
--enable-protocol=NAME enable protocol NAME
--disable-protocol=NAME disable protocol NAME
--disable-protocols disable all protocols
--enable-indev=NAME enable input device NAME
--disable-indev=NAME disable input device NAME
--disable-indevs disable input devices
--enable-outdev=NAME enable output device NAME
--disable-outdev=NAME disable output device NAME
--disable-outdevs disable output devices
--disable-devices disable all devices
--enable-filter=NAME enable filter NAME
--disable-filter=NAME disable filter NAME
--disable-filters disable all filters
External library support:
--enable-avisynth enable reading of AVISynth script files [no]
--enable-bzlib enable bzlib [autodetect]
--enable-fontconfig enable fontconfig
--enable-frei0r enable frei0r video filtering
--enable-gnutls enable gnutls [no]
--enable-libaacplus enable AAC+ encoding via libaacplus [no]
--enable-libass enable libass subtitles rendering [no]
--enable-libbluray enable BluRay reading using libbluray [no]
--enable-libcaca enable textual display using libcaca
--enable-libcelt enable CELT decoding via libcelt [no]
--enable-libcdio enable audio CD grabbing with libcdio
--enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
--enable-libfaac enable AAC encoding via libfaac [no]
--enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
--enable-libflite enable flite (voice synthesis) support via libflite [no]
--enable-libfreetype enable libfreetype [no]
--enable-libgsm enable GSM de/encoding via libgsm [no]
--enable-libiec61883 enable iec61883 via libiec61883 [no]
--enable-libilbc enable iLBC de/encoding via libilbc [no]
--enable-libmodplug enable ModPlug via libmodplug [no]
--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
--enable-libnut enable NUT (de)muxing via libnut,
native (de)muxer exists [no]
--enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
--enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
--enable-libopencv enable video filtering via libopencv [no]
--enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
--enable-libopus enable Opus decoding via libopus [no]
--enable-libpulse enable Pulseaudio input via libpulse [no]
--enable-librtmp enable RTMP[E] support via librtmp [no]
--enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
--enable-libsoxr enable Include libsoxr resampling [no]
--enable-libspeex enable Speex de/encoding via libspeex [no]
--enable-libstagefright-h264 enable H.264 decoding via libstagefright [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libtwolame enable MP2 encoding via libtwolame [no]
--enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
--enable-libv4l2 enable libv4l2/v4l-utils [no]
--enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
--enable-libvorbis enable Vorbis en/decoding via libvorbis,
native implementation exists [no]
--enable-libvpx enable VP8 de/encoding via libvpx [no]
--enable-libx264 enable H.264 encoding via x264 [no]
--enable-libxavs enable AVS encoding via xavs [no]
--enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
--enable-openal enable OpenAL 1.1 capture support [no]
--enable-openssl enable openssl [no]
--enable-zlib enable zlib [autodetect]
Advanced options (experts only):
--cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
--enable-cross-compile assume a cross-compiler is used
--sysroot=PATH root of cross-build tree
--sysinclude=PATH location of cross-build system headers
--target-os=OS compiler targets OS [$target_os]
--target-exec=CMD command to run executables on target
--target-path=DIR path to view of build directory on target
--toolchain=NAME set tool defaults according to NAME
--nm=NM use nm tool NM [$nm_default]
--ar=AR use archive tool AR [$ar_default]
--as=AS use assembler AS [$as_default]
--yasmexe=EXE use yasm-compatible assembler EXE [$yasmexe_default]
--cc=CC use C compiler CC [$cc_default]
--cxx=CXX use C compiler CXX [$cxx_default]
--dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
--ld=LD use linker LD [$ld_default]
--host-cc=HOSTCC use host C compiler HOSTCC
--host-cflags=HCFLAGS use HCFLAGS when compiling for host
--host-ld=HOSTLD use host linker HOSTLD
--host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
--host-libs=HLIBS use libs HLIBS when linking for host
--host-os=OS compiler host OS [$target_os]
--extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
--extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
--extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
--extra-libs=ELIBS add ELIBS [$ELIBS]
--extra-version=STRING version string suffix []
--optflags=OPTFLAGS override optimization-related compiler flags
--build-suffix=SUFFIX library name suffix []
--malloc-prefix=PREFIX prefix malloc and related names with PREFIX
--progs-suffix=SUFFIX program name suffix []
--arch=ARCH select architecture [$arch]
--cpu=CPU select the minimum required CPU (affects
instruction selection, may crash on older CPUs)
--enable-pic build position-independent code
--enable-sram allow use of on-chip SRAM
--enable-thumb compile for Thumb instruction set
--disable-symver disable symbol versioning
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
--disable-safe-bitstream-reader
disable buffer boundary checking in bitreaders
(faster, but may crash)
--enable-memalign-hack emulate memalign, interferes with memory debuggers
--enable-lto use link-time optimization
Optimization options (experts only):
--disable-asm disable all assembler optimizations
--disable-altivec disable AltiVec optimizations
--disable-amd3dnow disable 3DNow! optimizations
--disable-amd3dnowext disable 3DNow! extended optimizations
--disable-mmx disable MMX optimizations
--disable-mmxext disable MMXEXT optimizations
--disable-sse disable SSE optimizations
--disable-sse2 disable SSE2 optimizations
--disable-sse3 disable SSE3 optimizations
--disable-ssse3 disable SSSE3 optimizations
--disable-sse4 disable SSE4 optimizations
--disable-sse42 disable SSE4.2 optimizations
--disable-avx disable AVX optimizations
--disable-fma4 disable FMA4 optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
--disable-vfp disable VFP optimizations
--disable-neon disable NEON optimizations
--disable-vis disable VIS optimizations
--disable-inline-asm disable use of inline assembler
--disable-yasm disable use of yasm assembler
--disable-mips32r2 disable MIPS32R2 optimizations
--disable-mipsdspr1 disable MIPS DSP ASE R1 optimizations
--disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
--disable-mipsfpu disable floating point MIPS optimizations
--disable-fast-unaligned consider unaligned accesses slow
Developer options (useful when working on FFmpeg itself):
--enable-coverage build with test coverage instrumentation
--disable-debug disable debugging symbols
--enable-debug=LEVEL set the debug level [$debuglevel]
--disable-optimizations disable compiler optimizations
--enable-extra-warnings enable more compiler warnings
--disable-stripping disable stripping of executables and shared libraries
--assert-level=level 0(default), 1 or 2, amount of assertion testing,
2 causes a slowdown at runtime.
--enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
--valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
leaks and errors, using the specified valgrind binary.
Cannot be combined with --target-exec
--enable-ftrapv Trap arithmetic overflows
--samples=PATH location of test samples for FATE, if not set use
\$FATE_SAMPLES at make invocation time.
--enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
should be used only for debugging purposes)
--enable-random randomly enable/disable components
--disable-random
--enable-random=LIST randomly enable/disable specific components or
--disable-random=LIST component groups. LIST is a comma-separated list
of NAME[:PROB] entries where NAME is a component
(group) and PROB the probability associated with
NAME (default 0.5).
--random-seed=VALUE seed value for --enable/disable-random
NOTE: Object files are built at the place where configure is launched.
EOF
exit 0
}
quotes='""'
log(){
echo "$@" >> $logfile
}
log_file(){
log BEGIN $1
pr -n -t $1 >> $logfile
log END $1
}
echolog(){
log "$@"
echo "$@"
}
warn(){
log "WARNING: $*"
WARNINGS="${WARNINGS}WARNING: $*\n"
}
die(){
echolog "$@"
cat <<EOF
If you think configure made a mistake, make sure you are using the latest
version from Git. If the latest version fails, report the problem to the
[email protected] mailing list or IRC #ffmpeg on irc.freenode.net.
EOF
if disabled logging; then
cat <<EOF
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
EOF
else
cat <<EOF
Include the log file "$logfile" produced by configure as this will help
solving the problem.
EOF
fi
exit 1
}
# Avoid locale weirdness, besides we really just want to translate ASCII.
toupper(){
echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}
tolower(){
echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
}
c_escape(){
echo "$*" | sed 's/["\\]/\\\0/g'
}
sh_quote(){
v=$(echo "$1" | sed "s/'/'\\\\''/g")
test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
echo "$v"
}
cleanws(){
echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
}
filter(){
pat=$1
shift
for v; do
eval "case $v in $pat) echo $v ;; esac"
done
}
filter_out(){
pat=$1
shift
for v; do
eval "case $v in $pat) ;; *) echo $v ;; esac"
done
}
map(){
m=$1
shift
for v; do eval $m; done
}
add_suffix(){
suffix=$1
shift
for v; do echo ${v}${suffix}; done
}
set_all(){
value=$1
shift
for var in $*; do
eval $var=$value
done
}
set_weak(){
value=$1
shift
for var; do
eval : \${$var:=$value}
done
}
set_safe(){
var=$1
shift
eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
}
get_safe(){
eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
}
pushvar(){
for var in $*; do
eval level=\${${var}_level:=0}
eval ${var}_${level}="\$$var"
eval ${var}_level=$(($level+1))
done
}
popvar(){
for var in $*; do
eval level=\${${var}_level:-0}
test $level = 0 && continue
eval level=$(($level-1))
eval $var="\${${var}_${level}}"
eval ${var}_level=$level
eval unset ${var}_${level}
done
}
enable(){
set_all yes $*
}
disable(){
set_all no $*
}
enable_weak(){
set_weak yes $*
}
disable_weak(){
set_weak no $*
}
enable_safe(){
for var; do
enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
done
}
disable_safe(){
for var; do
disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
done
}
do_enable_deep(){
for var; do
enabled $var && continue
eval sel="\$${var}_select"
eval sgs="\$${var}_suggest"
pushvar var sgs
enable_deep $sel
popvar sgs
enable_deep_weak $sgs
popvar var
done
}
enable_deep(){
do_enable_deep $*
enable $*
}
enable_deep_weak(){
do_enable_deep $*
enable_weak $*
}
enabled(){
test "${1#!}" = "$1" && op== || op=!=
eval test "x\$${1#!}" $op "xyes"
}
disabled(){
test "${1#!}" = "$1" && op== || op=!=
eval test "x\$${1#!}" $op "xno"
}
enabled_all(){
for opt; do
enabled $opt || return 1
done
}
disabled_all(){
for opt; do
disabled $opt || return 1
done
}
enabled_any(){
for opt; do
enabled $opt && return 0
done
}
disabled_any(){
for opt; do
disabled $opt && return 0
done
return 1
}
set_default(){
for opt; do
eval : \${$opt:=\$${opt}_default}
done
}
is_in(){
value=$1
shift
for var in $*; do
[ $var = $value ] && return 0
done
return 1
}
do_check_deps(){
for cfg; do
cfg="${cfg#!}"
enabled ${cfg}_checking && die "Circular dependency for $cfg."
disabled ${cfg}_checking && continue
enable ${cfg}_checking
append allopts $cfg
eval dep_all="\$${cfg}_deps"
eval dep_any="\$${cfg}_deps_any"
eval dep_sel="\$${cfg}_select"
eval dep_sgs="\$${cfg}_suggest"
eval dep_ifa="\$${cfg}_if"
eval dep_ifn="\$${cfg}_if_any"
pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
[ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
[ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
enabled_all $dep_all || disable $cfg
enabled_any $dep_any || disable $cfg
disabled_any $dep_sel && disable $cfg
if enabled $cfg; then
enable_deep $dep_sel
enable_deep_weak $dep_sgs
fi
disable ${cfg}_checking
done
}
check_deps(){
unset allopts
do_check_deps "$@"
for cfg in $allopts; do
enabled $cfg || continue
eval dep_extralibs="\$${cfg}_extralibs"
test -n "$dep_extralibs" && add_extralibs $dep_extralibs
done
}
print_config(){
pfx=$1
files=$2
shift 2
map 'eval echo "$v \${$v:-no}"' "$@" |
awk "BEGIN { split(\"$files\", files) }
{
c = \"$pfx\" toupper(\$1);
v = \$2;
sub(/yes/, 1, v);
sub(/no/, 0, v);
for (f in files) {
file = files[f];
if (file ~ /\\.h\$/) {
printf(\"#define %s %d\\n\", c, v) >>file;
} else if (file ~ /\\.asm\$/) {
printf(\"%%define %s %d\\n\", c, v) >>file;
} else if (file ~ /\\.mak\$/) {
n = -v ? \"\" : \"!\";
printf(\"%s%s=yes\\n\", n, c) >>file;
}
}
}"
}
print_enabled(){
suf=$1
shift
for v; do
enabled $v && printf "%s\n" ${v%$suf};
done
}
append(){
var=$1
shift
eval "$var=\"\$$var $*\""
}
prepend(){
var=$1
shift
eval "$var=\"$* \$$var\""
}
add_cppflags(){
append CPPFLAGS "$@"
}
add_cflags(){
append CFLAGS $($cflags_filter "$@")
}
add_cxxflags(){
append CXXFLAGS $($cflags_filter "$@")
}
add_asflags(){
append ASFLAGS $($asflags_filter "$@")
}
add_ldflags(){
append LDFLAGS $($ldflags_filter "$@")
}
add_extralibs(){
prepend extralibs $($ldflags_filter "$@")
}
add_host_cflags(){
append host_cflags $($host_cflags_filter "$@")
}
add_host_ldflags(){
append host_ldflags $($host_ldflags_filter "$@")
}
add_compat(){
append compat_objs $1
shift
map 'add_cppflags -D$v' "$@"
}
check_cmd(){
log "$@"
"$@" >> $logfile 2>&1
}
cc_o(){
eval printf '%s\\n' $CC_O
}
cc_e(){
eval printf '%s\\n' $CC_E
}
check_cc(){
log check_cc "$@"
cat > $TMPC
log_file $TMPC
check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
}
check_cxx(){
log check_cxx "$@"
cat > $TMPCPP
log_file $TMPCPP
check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
}
check_cpp(){
log check_cpp "$@"
cat > $TMPC
log_file $TMPC
check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
}
as_o(){
eval printf '%s\\n' $AS_O
}
check_as(){
log check_as "$@"
cat > $TMPS
log_file $TMPS
check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
}
check_inline_asm(){
log check_inline_asm "$@"
name="$1"
code="$2"
shift 2
disable $name
check_cc "$@" <<EOF && enable $name
void foo(void){ __asm__ volatile($code); }
EOF
}
check_insn(){
log check_insn "$@"
check_inline_asm ${1}_inline "\"$2\""
echo "$2" | check_as && enable ${1}_external || disable ${1}_external
}
check_yasm(){
log check_yasm "$@"
echo "$1" > $TMPS
log_file $TMPS
shift 1
check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
}
ld_o(){
eval printf '%s\\n' $LD_O
}
check_ld(){
log check_ld "$@"
type=$1
shift 1
flags=$(filter_out '-l*' $@)
libs=$(filter '-l*' $@)
check_$type $($cflags_filter $flags) || return
flags=$($ldflags_filter $flags)
libs=$($ldflags_filter $libs)
check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
}
check_code(){
log check_code "$@"
check=$1
headers=$2
code=$3
shift 3
{
for hdr in $headers; do
echo "#include <$hdr>"
done
echo "int main(void) { $code; return 0; }"
} | check_$check "$@"
}
check_cppflags(){
log check_cppflags "$@"
check_cc "$@" <<EOF && append CPPFLAGS "$@"
int x;
EOF
}
check_cflags(){
log check_cflags "$@"
set -- $($cflags_filter "$@")
check_cc "$@" <<EOF && append CFLAGS "$@"
int x;
EOF
}
check_cxxflags(){
log check_cxxflags "$@"
set -- $($cflags_filter "$@")
check_cxx "$@" <<EOF && append CXXFLAGS "$@"
int x;
EOF
}
test_ldflags(){
log test_ldflags "$@"
check_ld "cc" "$@" <<EOF
int main(void){ return 0; }
EOF
}
check_ldflags(){
log check_ldflags "$@"
test_ldflags "$@" && add_ldflags "$@"
}
check_header(){
log check_header "$@"
header=$1
shift
disable_safe $header
check_cpp "$@" <<EOF && enable_safe $header
#include <$header>
int x;
EOF
}
check_func(){
log check_func "$@"
func=$1
shift
disable $func
check_ld "cc" "$@" <<EOF && enable $func
extern int $func();
int main(void){ $func(); }
EOF
}
check_mathfunc(){
log check_mathfunc "$@"
func=$1
narg=$2
shift 2
test $narg = 2 && args="f, g" || args="f"
disable $func
check_ld "cc" "$@" <<EOF && enable $func
#include <math.h>
float foo(float f, float g) { return $func($args); }
int main(void){ return (int) foo; }
EOF
}
check_func_headers(){
log check_func_headers "$@"
headers=$1
funcs=$2
shift 2
{
for hdr in $headers; do
echo "#include <$hdr>"
done
for func in $funcs; do
echo "long check_$func(void) { return (long) $func; }"
done
echo "int main(void) { return 0; }"
} | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
}
check_class_headers_cpp(){
log check_class_headers_cpp "$@"
headers=$1
classes=$2
shift 2
{
for hdr in $headers; do
echo "#include <$hdr>"
done
echo "int main(void) { "
i=1
for class in $classes; do
echo "$class obj$i;"
i=$(expr $i + 1)
done
echo "return 0; }"
} | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
}
check_cpp_condition(){
log check_cpp_condition "$@"
header=$1
condition=$2
shift 2
check_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}
check_lib(){
log check_lib "$@"
header="$1"
func="$2"
shift 2
check_header $header && check_func $func "$@" && add_extralibs "$@"
}
check_lib2(){
log check_lib2 "$@"
headers="$1"
funcs="$2"
shift 2
check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
}
check_lib_cpp(){
log check_lib_cpp "$@"
headers="$1"
classes="$2"
shift 2
check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
}
check_pkg_config(){
log check_pkg_config "$@"
pkg="$1"
headers="$2"
funcs="$3"
shift 3
$pkg_config --exists $pkg 2>/dev/null || return
pkg_cflags=$($pkg_config --cflags $pkg)
pkg_libs=$($pkg_config --libs $pkg)
check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
set_safe ${pkg}_cflags $pkg_cflags &&
set_safe ${pkg}_libs $pkg_libs
}
check_exec(){
check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
}
check_exec_crash(){
code=$(cat)
# exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
# are safe but may not be available everywhere. Thus we use
# raise(SIGTERM) instead. The check is run in a subshell so we
# can redirect the "Terminated" message from the shell. SIGBUS
# is not defined by standard C so it is used conditionally.
(check_exec "$@") >> $logfile 2>&1 <<EOF
#include <signal.h>
static void sighandler(int sig){
raise(SIGTERM);
}
int func(void){
$code
}
int (*func_ptr)(void) = func;
int main(void){
signal(SIGILL, sighandler);
signal(SIGFPE, sighandler);
signal(SIGSEGV, sighandler);
#ifdef SIGBUS
signal(SIGBUS, sighandler);
#endif
return func_ptr();