c27bc75616aa32a02bde38bbfb5183269c4793fd
[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 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
96
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
104 --disable-all disable building components, libraries and programs
105
106 Program options:
107 --disable-programs do not build command line programs
108 --disable-avconv disable avconv build
109 --disable-avplay disable avplay build
110 --disable-avprobe disable avprobe build
111 --disable-avserver disable avserver build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-avdevice disable libavdevice build
116 --disable-avcodec disable libavcodec build
117 --disable-avformat disable libavformat build
118 --disable-avutil disable libavutil build
119 --disable-swscale disable libswscale build
120 --disable-avfilter disable video filter support [no]
121 --disable-avresample disable libavresample build [no]
122 --disable-pthreads disable pthreads [auto]
123 --disable-w32threads disable Win32 threads [auto]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-error-resilience disable error resilience code
127 --disable-lsp disable LSP code
128 --disable-lzo disable LZO decoder code
129 --disable-mdct disable MDCT code
130 --disable-rdft disable RDFT code
131 --disable-fft disable FFT code
132
133 Hardware accelerators:
134 --enable-dxva2 enable DXVA2 code
135 --enable-vaapi enable VAAPI code
136 --enable-vda enable VDA code
137 --enable-vdpau enable VDPAU code
138
139 Individual component options:
140 --disable-everything disable all components listed below
141 --disable-encoder=NAME disable encoder NAME
142 --enable-encoder=NAME enable encoder NAME
143 --disable-encoders disable all encoders
144 --disable-decoder=NAME disable decoder NAME
145 --enable-decoder=NAME enable decoder NAME
146 --disable-decoders disable all decoders
147 --disable-hwaccel=NAME disable hwaccel NAME
148 --enable-hwaccel=NAME enable hwaccel NAME
149 --disable-hwaccels disable all hwaccels
150 --disable-muxer=NAME disable muxer NAME
151 --enable-muxer=NAME enable muxer NAME
152 --disable-muxers disable all muxers
153 --disable-demuxer=NAME disable demuxer NAME
154 --enable-demuxer=NAME enable demuxer NAME
155 --disable-demuxers disable all demuxers
156 --enable-parser=NAME enable parser NAME
157 --disable-parser=NAME disable parser NAME
158 --disable-parsers disable all parsers
159 --enable-bsf=NAME enable bitstream filter NAME
160 --disable-bsf=NAME disable bitstream filter NAME
161 --disable-bsfs disable all bitstream filters
162 --enable-protocol=NAME enable protocol NAME
163 --disable-protocol=NAME disable protocol NAME
164 --disable-protocols disable all protocols
165 --enable-indev=NAME enable input device NAME
166 --disable-indev=NAME disable input device NAME
167 --disable-indevs disable input devices
168 --enable-outdev=NAME enable output device NAME
169 --disable-outdev=NAME disable output device NAME
170 --disable-outdevs disable output devices
171 --disable-devices disable all devices
172 --enable-filter=NAME enable filter NAME
173 --disable-filter=NAME disable filter NAME
174 --disable-filters disable all filters
175
176 External library support:
177 --enable-avisynth enable reading of AviSynth script files [no]
178 --enable-bzlib enable bzlib [autodetect]
179 --enable-frei0r enable frei0r video filtering
180 --enable-gnutls enable gnutls [no]
181 --enable-libbs2b enable bs2b DSP library [no]
182 --enable-libcdio enable audio CD grabbing with libcdio
183 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
184 and libraw1394 [no]
185 --enable-libfaac enable AAC encoding via libfaac [no]
186 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
187 --enable-libfreetype enable libfreetype [no]
188 --enable-libgsm enable GSM de/encoding via libgsm [no]
189 --enable-libilbc enable iLBC de/encoding via libilbc [no]
190 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
191 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
192 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
193 --enable-libopencv enable video filtering via libopencv [no]
194 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
195 --enable-libopus enable Opus decoding via libopus [no]
196 --enable-libpulse enable Pulseaudio input via libpulse [no]
197 --enable-librtmp enable RTMP[E] support via librtmp [no]
198 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
199 --enable-libspeex enable Speex de/encoding via libspeex [no]
200 --enable-libtheora enable Theora encoding via libtheora [no]
201 --enable-libtwolame enable MP2 encoding via libtwolame [no]
202 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
203 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
204 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
205 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
206 --enable-libwavpack enable wavpack encoding via libwavpack [no]
207 --enable-libwebp enable WebP encoding via libwebp [no]
208 --enable-libx264 enable H.264 encoding via x264 [no]
209 --enable-libx265 enable HEVC encoding via x265 [no]
210 --enable-libxavs enable AVS encoding via xavs [no]
211 --enable-libxvid enable Xvid encoding via xvidcore,
212 native MPEG-4/Xvid encoder exists [no]
213 --enable-openssl enable openssl [no]
214 --enable-x11grab enable X11 grabbing [no]
215 --enable-zlib enable zlib [autodetect]
216
217 Toolchain options:
218 --arch=ARCH select architecture [$arch]
219 --cpu=CPU select the minimum required CPU (affects
220 instruction selection, may crash on older CPUs)
221 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
222 --enable-cross-compile assume a cross-compiler is used
223 --sysroot=PATH root of cross-build tree
224 --sysinclude=PATH location of cross-build system headers
225 --target-os=OS compiler targets OS [$target_os]
226 --target-exec=CMD command to run executables on target
227 --target-path=DIR path to view of build directory on target
228 --target-samples=DIR path to samples directory on target
229 --toolchain=NAME set tool defaults according to NAME
230 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
231 --nm=NM use nm tool
232 --ar=AR use archive tool AR [$ar_default]
233 --as=AS use assembler AS [$as_default]
234 --cc=CC use C compiler CC [$cc_default]
235 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
236 --ld=LD use linker LD
237 --pkg-config=PKGCONF use pkg-config PKGCONF [$pkg_config_default]
238 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
239 --host-cc=HOSTCC use host C compiler HOSTCC
240 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
241 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
242 --host-ld=HOSTLD use host linker HOSTLD
243 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
244 --host-libs=HLIBS use libs HLIBS when linking for host
245 --host-os=OS compiler host OS [$target_os]
246 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
247 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
248 --extra-libs=ELIBS add ELIBS [$ELIBS]
249 --extra-version=STRING version string suffix []
250 --optflags=OPTFLAGS override optimization-related compiler flags
251 --build-suffix=SUFFIX library name suffix []
252 --enable-pic build position-independent code
253 --enable-thumb compile for Thumb instruction set
254 --enable-lto use link-time optimization
255
256 Advanced options (experts only):
257 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
258 --disable-symver disable symbol versioning
259 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
260 --disable-safe-bitstream-reader
261 disable buffer boundary checking in bitreaders
262 (faster, but may crash)
263 --enable-memalign-hack emulate memalign, interferes with memory debuggers
264 --enable-sram allow use of on-chip SRAM
265
266 Optimization options (experts only):
267 --disable-asm disable all assembler optimizations
268 --disable-altivec disable AltiVec optimizations
269 --disable-amd3dnow disable 3DNow! optimizations
270 --disable-amd3dnowext disable 3DNow! extended optimizations
271 --disable-mmx disable MMX optimizations
272 --disable-mmxext disable MMXEXT optimizations
273 --disable-sse disable SSE optimizations
274 --disable-sse2 disable SSE2 optimizations
275 --disable-sse3 disable SSE3 optimizations
276 --disable-ssse3 disable SSSE3 optimizations
277 --disable-sse4 disable SSE4 optimizations
278 --disable-sse42 disable SSE4.2 optimizations
279 --disable-avx disable AVX optimizations
280 --disable-xop disable XOP optimizations
281 --disable-fma3 disable FMA3 optimizations
282 --disable-fma4 disable FMA4 optimizations
283 --disable-avx2 disable AVX2 optimizations
284 --disable-armv5te disable armv5te optimizations
285 --disable-armv6 disable armv6 optimizations
286 --disable-armv6t2 disable armv6t2 optimizations
287 --disable-vfp disable VFP optimizations
288 --disable-neon disable NEON optimizations
289 --disable-inline-asm disable use of inline assembler
290 --disable-yasm disable use of yasm assembler
291
292 Developer options (useful when working on Libav itself):
293 --disable-debug disable debugging symbols
294 --enable-debug=LEVEL set the debug level [$debuglevel]
295 --disable-optimizations disable compiler optimizations
296 --enable-extra-warnings enable more compiler warnings
297 --samples=PATH location of test samples for FATE, if not set use
298 \$LIBAV_SAMPLES at make invocation time.
299 --enable-neon-clobber-test check NEON registers for clobbering (should be
300 used only for debugging purposes)
301 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
302 should be used only for debugging purposes)
303 --enable-random randomly enable/disable components
304 --disable-random
305 --enable-random=LIST randomly enable/disable specific components or
306 --disable-random=LIST component groups. LIST is a comma-separated list
307 of NAME[:PROB] entries where NAME is a component
308 (group) and PROB the probability associated with
309 NAME (default 0.5).
310 --random-seed=VALUE seed value for --enable/disable-random
311
312 NOTE: Object files are built at the place where configure is launched.
313 EOF
314 exit 0
315 }
316
317 quotes='""'
318
319 log(){
320 echo "$@" >> $logfile
321 }
322
323 log_file(){
324 log BEGIN $1
325 pr -n -t $1 >> $logfile
326 log END $1
327 }
328
329 echolog(){
330 log "$@"
331 echo "$@"
332 }
333
334 warn(){
335 log "WARNING: $*"
336 WARNINGS="${WARNINGS}WARNING: $*\n"
337 }
338
339 die(){
340 echolog "$@"
341 cat <<EOF
342
343 If you think configure made a mistake, make sure you are using the latest
344 version from Git. If the latest version fails, report the problem to the
345 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
346 EOF
347 if disabled logging; then
348 cat <<EOF
349 Rerun configure with logging enabled (do not use --disable-logging), and
350 include the log this produces with your report.
351 EOF
352 else
353 cat <<EOF
354 Include the log file "$logfile" produced by configure as this will help
355 solving the problem.
356 EOF
357 fi
358 exit 1
359 }
360
361 # Avoid locale weirdness, besides we really just want to translate ASCII.
362 toupper(){
363 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
364 }
365
366 tolower(){
367 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
368 }
369
370 c_escape(){
371 echo "$*" | sed 's/["\\]/\\\0/g'
372 }
373
374 sh_quote(){
375 v=$(echo "$1" | sed "s/'/'\\\\''/g")
376 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
377 echo "$v"
378 }
379
380 cleanws(){
381 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
382 }
383
384 filter(){
385 pat=$1
386 shift
387 for v; do
388 eval "case $v in $pat) echo $v ;; esac"
389 done
390 }
391
392 filter_out(){
393 pat=$1
394 shift
395 for v; do
396 eval "case $v in $pat) ;; *) echo $v ;; esac"
397 done
398 }
399
400 map(){
401 m=$1
402 shift
403 for v; do eval $m; done
404 }
405
406 add_suffix(){
407 suffix=$1
408 shift
409 for v; do echo ${v}${suffix}; done
410 }
411
412 set_all(){
413 value=$1
414 shift
415 for var in $*; do
416 eval $var=$value
417 done
418 }
419
420 set_weak(){
421 value=$1
422 shift
423 for var; do
424 eval : \${$var:=$value}
425 done
426 }
427
428 sanitize_var_name(){
429 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
430 }
431
432 set_safe(){
433 var=$1
434 shift
435 eval $(sanitize_var_name "$var")='$*'
436 }
437
438 get_safe(){
439 eval echo \$$(sanitize_var_name "$1")
440 }
441
442 pushvar(){
443 for pvar in $*; do
444 eval level=\${${pvar}_level:=0}
445 eval ${pvar}_${level}="\$$pvar"
446 eval ${pvar}_level=$(($level+1))
447 done
448 }
449
450 popvar(){
451 for pvar in $*; do
452 eval level=\${${pvar}_level:-0}
453 test $level = 0 && continue
454 eval level=$(($level-1))
455 eval $pvar="\${${pvar}_${level}}"
456 eval ${pvar}_level=$level
457 eval unset ${pvar}_${level}
458 done
459 }
460
461 enable(){
462 set_all yes $*
463 }
464
465 disable(){
466 set_all no $*
467 }
468
469 enable_weak(){
470 set_weak yes $*
471 }
472
473 disable_weak(){
474 set_weak no $*
475 }
476
477 enable_safe(){
478 for var; do
479 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
480 done
481 }
482
483 disable_safe(){
484 for var; do
485 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
486 done
487 }
488
489 do_enable_deep(){
490 for var; do
491 enabled $var && continue
492 eval sel="\$${var}_select"
493 eval sgs="\$${var}_suggest"
494 pushvar var sgs
495 enable_deep $sel
496 popvar sgs
497 enable_deep_weak $sgs
498 popvar var
499 done
500 }
501
502 enable_deep(){
503 do_enable_deep $*
504 enable $*
505 }
506
507 enable_deep_weak(){
508 for var; do
509 disabled $var && continue
510 pushvar var
511 do_enable_deep $var
512 popvar var
513 enable_weak $var
514 done
515 }
516
517 enabled(){
518 test "${1#!}" = "$1" && op== || op=!=
519 eval test "x\$${1#!}" $op "xyes"
520 }
521
522 disabled(){
523 test "${1#!}" = "$1" && op== || op=!=
524 eval test "x\$${1#!}" $op "xno"
525 }
526
527 enabled_all(){
528 for opt; do
529 enabled $opt || return 1
530 done
531 }
532
533 disabled_all(){
534 for opt; do
535 disabled $opt || return 1
536 done
537 }
538
539 enabled_any(){
540 for opt; do
541 enabled $opt && return 0
542 done
543 }
544
545 disabled_any(){
546 for opt; do
547 disabled $opt && return 0
548 done
549 return 1
550 }
551
552 set_default(){
553 for opt; do
554 eval : \${$opt:=\$${opt}_default}
555 done
556 }
557
558 is_in(){
559 value=$1
560 shift
561 for var in $*; do
562 [ $var = $value ] && return 0
563 done
564 return 1
565 }
566
567 do_check_deps(){
568 for cfg; do
569 cfg="${cfg#!}"
570 enabled ${cfg}_checking && die "Circular dependency for $cfg."
571 disabled ${cfg}_checking && continue
572 enable ${cfg}_checking
573 append allopts $cfg
574
575 eval dep_all="\$${cfg}_deps"
576 eval dep_any="\$${cfg}_deps_any"
577 eval dep_sel="\$${cfg}_select"
578 eval dep_sgs="\$${cfg}_suggest"
579 eval dep_ifa="\$${cfg}_if"
580 eval dep_ifn="\$${cfg}_if_any"
581
582 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
583 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
584 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
585
586 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
587 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
588 enabled_all $dep_all || disable $cfg
589 enabled_any $dep_any || disable $cfg
590 disabled_any $dep_sel && disable $cfg
591
592 if enabled $cfg; then
593 enable_deep $dep_sel
594 enable_deep_weak $dep_sgs
595 fi
596
597 disable ${cfg}_checking
598 done
599 }
600
601 check_deps(){
602 unset allopts
603
604 do_check_deps "$@"
605
606 for cfg in $allopts; do
607 enabled $cfg || continue
608 eval dep_extralibs="\$${cfg}_extralibs"
609 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
610 done
611 }
612
613 print_config(){
614 pfx=$1
615 files=$2
616 shift 2
617 map 'eval echo "$v \${$v:-no}"' "$@" |
618 awk "BEGIN { split(\"$files\", files) }
619 {
620 c = \"$pfx\" toupper(\$1);
621 v = \$2;
622 sub(/yes/, 1, v);
623 sub(/no/, 0, v);
624 for (f in files) {
625 file = files[f];
626 if (file ~ /\\.h\$/) {
627 printf(\"#define %s %d\\n\", c, v) >>file;
628 } else if (file ~ /\\.asm\$/) {
629 printf(\"%%define %s %d\\n\", c, v) >>file;
630 } else if (file ~ /\\.mak\$/) {
631 n = -v ? \"\" : \"!\";
632 printf(\"%s%s=yes\\n\", n, c) >>file;
633 }
634 }
635 }"
636 }
637
638 print_enabled(){
639 suf=$1
640 shift
641 for v; do
642 enabled $v && printf "%s\n" ${v%$suf};
643 done
644 }
645
646 append(){
647 var=$1
648 shift
649 eval "$var=\"\$$var $*\""
650 }
651
652 prepend(){
653 var=$1
654 shift
655 eval "$var=\"$* \$$var\""
656 }
657
658 unique(){
659 var=$1
660 uniq_list=""
661 for tok in $(eval echo \$$var); do
662 uniq_list="$(filter_out $tok $uniq_list) $tok"
663 done
664 eval "$var=\"${uniq_list}\""
665 }
666
667 add_cppflags(){
668 append CPPFLAGS "$@"
669 }
670
671 add_cflags(){
672 append CFLAGS $($cflags_filter "$@")
673 }
674
675 add_asflags(){
676 append ASFLAGS $($asflags_filter "$@")
677 }
678
679 add_ldflags(){
680 append LDFLAGS $($ldflags_filter "$@")
681 }
682
683 add_stripflags(){
684 append STRIPFLAGS "$@"
685 }
686
687 add_extralibs(){
688 prepend extralibs $($ldflags_filter "$@")
689 }
690
691 add_host_cppflags(){
692 append host_cppflags "$@"
693 }
694
695 add_host_cflags(){
696 append host_cflags $($host_cflags_filter "$@")
697 }
698
699 add_host_ldflags(){
700 append host_ldflags $($host_ldflags_filter "$@")
701 }
702
703 add_compat(){
704 append compat_objs $1
705 shift
706 map 'add_cppflags -D$v' "$@"
707 }
708
709 check_cmd(){
710 log "$@"
711 "$@" >> $logfile 2>&1
712 }
713
714 cc_o(){
715 eval printf '%s\\n' $CC_O
716 }
717
718 cc_e(){
719 eval printf '%s\\n' $CC_E
720 }
721
722 check_cc(){
723 log check_cc "$@"
724 cat > $TMPC
725 log_file $TMPC
726 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
727 }
728
729 check_cpp(){
730 log check_cpp "$@"
731 cat > $TMPC
732 log_file $TMPC
733 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
734 }
735
736 as_o(){
737 eval printf '%s\\n' $AS_O
738 }
739
740 check_as(){
741 log check_as "$@"
742 cat > $TMPS
743 log_file $TMPS
744 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
745 }
746
747 check_inline_asm(){
748 log check_inline_asm "$@"
749 name="$1"
750 code="$2"
751 shift 2
752 disable $name
753 check_cc "$@" <<EOF && enable $name
754 void foo(void){ __asm__ volatile($code); }
755 EOF
756 }
757
758 check_insn(){
759 log check_insn "$@"
760 check_inline_asm ${1}_inline "\"$2\""
761 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
762 }
763
764 check_yasm(){
765 log check_yasm "$@"
766 echo "$1" > $TMPS
767 log_file $TMPS
768 shift 1
769 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
770 }
771
772 ld_o(){
773 eval printf '%s\\n' $LD_O
774 }
775
776 check_ld(){
777 log check_ld "$@"
778 flags=$(filter_out '-l*' "$@")
779 libs=$(filter '-l*' "$@")
780 check_cc $($cflags_filter $flags) || return
781 flags=$($ldflags_filter $flags)
782 libs=$($ldflags_filter $libs)
783 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
784 }
785
786 print_include(){
787 hdr=$1
788 test "${hdr%.h}" = "${hdr}" &&
789 echo "#include $hdr" ||
790 echo "#include <$hdr>"
791 }
792
793 check_code(){
794 log check_code "$@"
795 check=$1
796 headers=$2
797 code=$3
798 shift 3
799 {
800 for hdr in $headers; do
801 print_include $hdr
802 done
803 echo "int main(void) { $code; return 0; }"
804 } | check_$check "$@"
805 }
806
807 check_cppflags(){
808 log check_cppflags "$@"
809 check_cc "$@" <<EOF && append CPPFLAGS "$@"
810 int x;
811 EOF
812 }
813
814 test_cflags(){
815 log test_cflags "$@"
816 set -- $($cflags_filter "$@")
817 check_cc "$@" <<EOF
818 int x;
819 EOF
820 }
821
822 check_cflags(){
823 log check_cflags "$@"
824 test_cflags "$@" && add_cflags "$@"
825 }
826
827 test_ldflags(){
828 log test_ldflags "$@"
829 check_ld "$@" <<EOF
830 int main(void){ return 0; }
831 EOF
832 }
833
834 check_ldflags(){
835 log check_ldflags "$@"
836 test_ldflags "$@" && add_ldflags "$@"
837 }
838
839 test_stripflags(){
840 log test_stripflags "$@"
841 # call check_cc to get a fresh TMPO
842 check_cc <<EOF
843 int main(void) { return 0; }
844 EOF
845 check_cmd $strip $STRIPFLAGS "$@" $TMPO
846 }
847
848 check_stripflags(){
849 log check_stripflags "$@"
850 test_stripflags "$@" && add_stripflags "$@"
851 }
852
853 check_header(){
854 log check_header "$@"
855 header=$1
856 shift
857 disable_safe $header
858 check_cpp "$@" <<EOF && enable_safe $header
859 #include <$header>
860 int x;
861 EOF
862 }
863
864 check_func(){
865 log check_func "$@"
866 func=$1
867 shift
868 disable $func
869 check_ld "$@" <<EOF && enable $func
870 extern int $func();
871 int main(void){ $func(); }
872 EOF
873 }
874
875 check_mathfunc(){
876 log check_mathfunc "$@"
877 func=$1
878 narg=$2
879 shift 2
880 test $narg = 2 && args="f, g" || args="f"
881 disable $func
882 check_ld "$@" <<EOF && enable $func
883 #include <math.h>
884 float foo(float f, float g) { return $func($args); }
885 int main(void){ return 0; }
886 EOF
887 }
888
889 check_func_headers(){
890 log check_func_headers "$@"
891 headers=$1
892 funcs=$2
893 shift 2
894 {
895 for hdr in $headers; do
896 print_include $hdr
897 done
898 for func in $funcs; do
899 echo "long check_$func(void) { return (long) $func; }"
900 done
901 echo "int main(void) { return 0; }"
902 } | check_ld "$@" && enable $funcs && enable_safe $headers
903 }
904
905 check_cpp_condition(){
906 log check_cpp_condition "$@"
907 header=$1
908 condition=$2
909 shift 2
910 check_cpp "$@" <<EOF
911 #include <$header>
912 #if !($condition)
913 #error "unsatisfied condition: $condition"
914 #endif
915 EOF
916 }
917
918 check_lib(){
919 log check_lib "$@"
920 header="$1"
921 func="$2"
922 shift 2
923 check_header $header && check_func $func "$@" && add_extralibs "$@"
924 }
925
926 check_lib2(){
927 log check_lib2 "$@"
928 headers="$1"
929 funcs="$2"
930 shift 2
931 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
932 }
933
934 check_pkg_config(){
935 log check_pkg_config "$@"
936 pkg="$1"
937 headers="$2"
938 funcs="$3"
939 shift 3
940 check_cmd $pkg_config --exists --print-errors $pkg || return
941 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
942 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
943 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
944 set_safe ${pkg}_cflags $pkg_cflags &&
945 set_safe ${pkg}_libs $pkg_libs
946 }
947
948 check_exec(){
949 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
950 }
951
952 check_exec_crash(){
953 code=$(cat)
954
955 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
956 # are safe but may not be available everywhere. Thus we use
957 # raise(SIGTERM) instead. The check is run in a subshell so we
958 # can redirect the "Terminated" message from the shell. SIGBUS
959 # is not defined by standard C so it is used conditionally.
960
961 (check_exec "$@") >> $logfile 2>&1 <<EOF
962 #include <signal.h>
963 static void sighandler(int sig){
964 raise(SIGTERM);
965 }
966 int foo(void){
967 $code
968 }
969 int (*func_ptr)(void) = foo;
970 int main(void){
971 signal(SIGILL, sighandler);
972 signal(SIGFPE, sighandler);
973 signal(SIGSEGV, sighandler);
974 #ifdef SIGBUS
975 signal(SIGBUS, sighandler);
976 #endif
977 return func_ptr();
978 }
979 EOF
980 }
981
982 check_type(){
983 log check_type "$@"
984 headers=$1
985 type=$2
986 shift 2
987 disable_safe "$type"
988 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
989 }
990
991 check_struct(){
992 log check_struct "$@"
993 headers=$1
994 struct=$2
995 member=$3
996 shift 3
997 disable_safe "${struct}_${member}"
998 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
999 enable_safe "${struct}_${member}"
1000 }
1001
1002 check_builtin(){
1003 log check_builtin "$@"
1004 name=$1
1005 headers=$2
1006 builtin=$3
1007 shift 3
1008 disable "$name"
1009 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1010 }
1011
1012 check_compile_assert(){
1013 log check_compile_assert "$@"
1014 name=$1
1015 headers=$2
1016 condition=$3
1017 shift 3
1018 disable "$name"
1019 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1020 }
1021
1022 require(){
1023 name="$1"
1024 header="$2"
1025 func="$3"
1026 shift 3
1027 check_lib $header $func "$@" || die "ERROR: $name not found"
1028 }
1029
1030 require2(){
1031 name="$1"
1032 headers="$2"
1033 func="$3"
1034 shift 3
1035 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1036 }
1037
1038 require_pkg_config(){
1039 pkg="$1"
1040 check_pkg_config "$@" || die "ERROR: $pkg not found"
1041 add_cflags $(get_safe ${pkg}_cflags)
1042 add_extralibs $(get_safe ${pkg}_libs)
1043 }
1044
1045 hostcc_e(){
1046 eval printf '%s\\n' $HOSTCC_E
1047 }
1048
1049 hostcc_o(){
1050 eval printf '%s\\n' $HOSTCC_O
1051 }
1052
1053 check_host_cc(){
1054 log check_host_cc "$@"
1055 cat > $TMPC
1056 log_file $TMPC
1057 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1058 }
1059
1060 check_host_cpp(){
1061 log check_host_cpp "$@"
1062 cat > $TMPC
1063 log_file $TMPC
1064 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1065 }
1066
1067 check_host_cppflags(){
1068 log check_host_cppflags "$@"
1069 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1070 int x;
1071 EOF
1072 }
1073
1074 check_host_cflags(){
1075 log check_host_cflags "$@"
1076 set -- $($host_cflags_filter "$@")
1077 check_host_cc "$@" <<EOF && append host_cflags "$@"
1078 int x;
1079 EOF
1080 }
1081
1082 check_host_cpp_condition(){
1083 log check_host_cpp_condition "$@"
1084 header=$1
1085 condition=$2
1086 shift 2
1087 check_host_cpp "$@" <<EOF
1088 #include <$header>
1089 #if !($condition)
1090 #error "unsatisfied condition: $condition"
1091 #endif
1092 EOF
1093 }
1094
1095 apply(){
1096 file=$1
1097 shift
1098 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1099 }
1100
1101 cp_if_changed(){
1102 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1103 mkdir -p "$(dirname $2)"
1104 $cp_f "$1" "$2"
1105 }
1106
1107 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1108 # system-dependent things.
1109
1110 COMPONENT_LIST="
1111 bsfs
1112 decoders
1113 demuxers
1114 encoders
1115 filters
1116 hwaccels
1117 indevs
1118 muxers
1119 outdevs
1120 parsers
1121 protocols
1122 "
1123
1124 EXAMPLE_LIST="
1125 avcodec_example
1126 filter_audio_example
1127 metadata_example
1128 output_example
1129 transcode_aac_example
1130 "
1131
1132 EXTERNAL_LIBRARY_LIST="
1133 avisynth
1134 bzlib
1135 frei0r
1136 gnutls
1137 libbs2b
1138 libcdio
1139 libdc1394
1140 libfaac
1141 libfdk_aac
1142 libfontconfig
1143 libfreetype
1144 libgsm
1145 libilbc
1146 libmp3lame
1147 libopencore_amrnb
1148 libopencore_amrwb
1149 libopencv
1150 libopenjpeg
1151 libopus
1152 libpulse
1153 librtmp
1154 libschroedinger
1155 libspeex
1156 libtheora
1157 libtwolame
1158 libvo_aacenc
1159 libvo_amrwbenc
1160 libvorbis
1161 libvpx
1162 libwavpack
1163 libwebp
1164 libx264
1165 libx265
1166 libxavs
1167 libxvid
1168 openssl
1169 x11grab
1170 zlib
1171 "
1172
1173 FEATURE_LIST="
1174 gray
1175 hardcoded_tables
1176 runtime_cpudetect
1177 safe_bitstream_reader
1178 shared
1179 small
1180 sram
1181 static
1182 swscale_alpha
1183 "
1184
1185 HWACCEL_LIST="
1186 dxva2
1187 vaapi
1188 vda
1189 vdpau
1190 "
1191
1192 LIBRARY_LIST="
1193 avcodec
1194 avdevice
1195 avfilter
1196 avformat
1197 avresample
1198 avutil
1199 swscale
1200 "
1201
1202 LICENSE_LIST="
1203 gpl
1204 nonfree
1205 version3
1206 "
1207
1208 PROGRAM_LIST="
1209 avconv
1210 avplay
1211 avprobe
1212 avserver
1213 "
1214
1215 SUBSYSTEM_LIST="
1216 dct
1217 doc
1218 error_resilience
1219 fft
1220 lsp
1221 lzo
1222 mdct
1223 network
1224 rdft
1225 "
1226
1227 CONFIG_LIST="
1228 $COMPONENT_LIST
1229 $EXAMPLE_LIST
1230 $EXTERNAL_LIBRARY_LIST
1231 $FEATURE_LIST
1232 $HWACCEL_LIST
1233 $LICENSE_LIST
1234 $LIBRARY_LIST
1235 $PROGRAM_LIST
1236 $SUBSYSTEM_LIST
1237 memalign_hack
1238 neon_clobber_test
1239 pic
1240 pod2man
1241 texi2html
1242 thumb
1243 xmm_clobber_test
1244 "
1245
1246 THREADS_LIST="
1247 pthreads
1248 w32threads
1249 "
1250
1251 ATOMICS_LIST="
1252 atomics_gcc
1253 atomics_suncc
1254 atomics_win32
1255 "
1256
1257 ARCH_LIST="
1258 aarch64
1259 alpha
1260 arm
1261 avr32
1262 avr32_ap
1263 avr32_uc
1264 bfin
1265 ia64
1266 m68k
1267 mips
1268 mips64
1269 parisc
1270 ppc
1271 ppc64
1272 s390
1273 sh4
1274 sparc
1275 sparc64
1276 tilegx
1277 tilepro
1278 tomi
1279 x86
1280 x86_32
1281 x86_64
1282 "
1283
1284 ARCH_EXT_LIST_ARM="
1285 armv5te
1286 armv6
1287 armv6t2
1288 armv8
1289 neon
1290 vfp
1291 vfpv3
1292 "
1293
1294 ARCH_EXT_LIST_X86_SIMD="
1295 amd3dnow
1296 amd3dnowext
1297 avx
1298 avx2
1299 fma3
1300 fma4
1301 mmx
1302 mmxext
1303 sse
1304 sse2
1305 sse3
1306 sse4
1307 sse42
1308 ssse3
1309 xop
1310 "
1311
1312 ARCH_EXT_LIST_PPC="
1313 altivec
1314 dcbzl
1315 ldbrx
1316 ppc4xx
1317 "
1318
1319 ARCH_EXT_LIST_X86="
1320 $ARCH_EXT_LIST_X86_SIMD
1321 cpunop
1322 i686
1323 "
1324
1325 ARCH_EXT_LIST="
1326 $ARCH_EXT_LIST_ARM
1327 $ARCH_EXT_LIST_PPC
1328 $ARCH_EXT_LIST_X86
1329 loongson
1330 vis
1331 "
1332
1333 ARCH_FEATURES="
1334 aligned_stack
1335 fast_64bit
1336 fast_clz
1337 fast_cmov
1338 local_aligned_8
1339 local_aligned_16
1340 "
1341
1342 BUILTIN_LIST="
1343 atomic_cas_ptr
1344 machine_rw_barrier
1345 MemoryBarrier
1346 mm_empty
1347 rdtsc
1348 sync_val_compare_and_swap
1349 "
1350 HAVE_LIST_CMDLINE="
1351 inline_asm
1352 symver
1353 yasm
1354 "
1355
1356 HAVE_LIST_PUB="
1357 bigendian
1358 fast_unaligned
1359 "
1360
1361 HEADERS_LIST="
1362 alsa_asoundlib_h
1363 altivec_h
1364 arpa_inet_h
1365 cdio_paranoia_h
1366 cdio_paranoia_paranoia_h
1367 dev_bktr_ioctl_bt848_h
1368 dev_bktr_ioctl_meteor_h
1369 dev_ic_bt8xx_h
1370 dev_video_bktr_ioctl_bt848_h
1371 dev_video_meteor_ioctl_meteor_h
1372 direct_h
1373 dlfcn_h
1374 dxva_h
1375 gsm_h
1376 io_h
1377 mach_mach_time_h
1378 machine_ioctl_bt848_h
1379 machine_ioctl_meteor_h
1380 malloc_h
1381 poll_h
1382 sndio_h
1383 soundcard_h
1384 sys_mman_h
1385 sys_param_h
1386 sys_resource_h
1387 sys_select_h
1388 sys_soundcard_h
1389 sys_time_h
1390 sys_un_h
1391 sys_videoio_h
1392 unistd_h
1393 windows_h
1394 winsock2_h
1395 "
1396
1397 MATH_FUNCS="
1398 atanf
1399 atan2f
1400 cbrtf
1401 cosf
1402 exp2
1403 exp2f
1404 expf
1405 isinf
1406 isnan
1407 ldexpf
1408 llrint
1409 llrintf
1410 log2
1411 log2f
1412 log10f
1413 lrint
1414 lrintf
1415 powf
1416 rint
1417 round
1418 roundf
1419 sinf
1420 trunc
1421 truncf
1422 "
1423
1424 SYSTEM_FUNCS="
1425 aligned_malloc
1426 closesocket
1427 CommandLineToArgvW
1428 CoTaskMemFree
1429 CryptGenRandom
1430 dlopen
1431 fcntl
1432 flt_lim
1433 fork
1434 getaddrinfo
1435 gethrtime
1436 getopt
1437 GetProcessAffinityMask
1438 GetProcessMemoryInfo
1439 GetProcessTimes
1440 getrusage
1441 getservbyport
1442 GetSystemTimeAsFileTime
1443 gettimeofday
1444 inet_aton
1445 isatty
1446 jack_port_get_latency_range
1447 localtime_r
1448 mach_absolute_time
1449 MapViewOfFile
1450 memalign
1451 mkstemp
1452 mmap
1453 mprotect
1454 nanosleep
1455 posix_memalign
1456 sched_getaffinity
1457 SetConsoleTextAttribute
1458 setmode
1459 setrlimit
1460 Sleep
1461 strerror_r
1462 strptime
1463 sysconf
1464 sysctl
1465 usleep
1466 VirtualAlloc
1467 "
1468
1469 TOOLCHAIN_FEATURES="
1470 asm_mod_q
1471 attribute_may_alias
1472 attribute_packed
1473 ebp_available
1474 ebx_available
1475 gnu_as
1476 ibm_asm
1477 inline_asm_labels
1478 pragma_deprecated
1479 symver_asm_label
1480 symver_gnu_asm
1481 vfp_args
1482 xform_asm
1483 xmm_clobbers
1484 "
1485
1486 TYPES_LIST="
1487 socklen_t
1488 struct_addrinfo
1489 struct_group_source_req
1490 struct_ip_mreq_source
1491 struct_ipv6_mreq
1492 struct_pollfd
1493 struct_rusage_ru_maxrss
1494 struct_sockaddr_in6
1495 struct_sockaddr_sa_len
1496 struct_sockaddr_storage
1497 struct_v4l2_frmivalenum_discrete
1498 "
1499
1500 HAVE_LIST="
1501 $ARCH_EXT_LIST
1502 $(add_suffix _external $ARCH_EXT_LIST)
1503 $(add_suffix _inline $ARCH_EXT_LIST)
1504 $ARCH_FEATURES
1505 $ATOMICS_LIST
1506 $BUILTIN_LIST
1507 $HAVE_LIST_CMDLINE
1508 $HAVE_LIST_PUB
1509 $HEADERS_LIST
1510 $MATH_FUNCS
1511 $SYSTEM_FUNCS
1512 $THREADS_LIST
1513 $TOOLCHAIN_FEATURES
1514 $TYPES_LIST
1515 atomics_native
1516 dos_paths
1517 dxva2_lib
1518 libc_msvcrt
1519 libdc1394_1
1520 libdc1394_2
1521 sdl
1522 threads
1523 vdpau_x11
1524 xlib
1525 "
1526
1527 # options emitted with CONFIG_ prefix but not available on the command line
1528 CONFIG_EXTRA="
1529 aandcttables
1530 ac3dsp
1531 audio_frame_queue
1532 cabac
1533 dsputil
1534 gcrypt
1535 golomb
1536 gplv3
1537 h263dsp
1538 h264chroma
1539 h264dsp
1540 h264pred
1541 h264qpel
1542 hpeldsp
1543 huffman
1544 intrax8
1545 lgplv3
1546 lpc
1547 mpegaudio
1548 mpegaudiodsp
1549 mpegvideo
1550 mpegvideoenc
1551 nettle
1552 rangecoder
1553 riffdec
1554 riffenc
1555 rtpdec
1556 rtpenc_chain
1557 sinewin
1558 tpeldsp
1559 videodsp
1560 vp3dsp
1561 "
1562
1563 CMDLINE_SELECT="
1564 $ARCH_EXT_LIST
1565 $CONFIG_LIST
1566 $HAVE_LIST_CMDLINE
1567 $THREADS_LIST
1568 asm
1569 cross_compile
1570 debug
1571 extra_warnings
1572 logging
1573 lto
1574 optimizations
1575 "
1576
1577 PATHS_LIST="
1578 bindir
1579 datadir
1580 docdir
1581 incdir
1582 libdir
1583 mandir
1584 prefix
1585 shlibdir
1586 "
1587
1588 CMDLINE_SET="
1589 $PATHS_LIST
1590 ar
1591 arch
1592 as
1593 build_suffix
1594 cc
1595 cpu
1596 cross_prefix
1597 dep_cc
1598 extra_version
1599 host_cc
1600 host_cflags
1601 host_ld
1602 host_ldflags
1603 host_libs
1604 host_os
1605 ld
1606 logfile
1607 malloc_prefix
1608 nm
1609 optflags
1610 pkg_config
1611 pkg_config_flags
1612 random_seed
1613 samples
1614 sysinclude
1615 sysroot
1616 target_exec
1617 target_os
1618 target_path
1619 target_samples
1620 toolchain
1621 "
1622
1623 CMDLINE_APPEND="
1624 extra_cflags
1625 host_cppflags
1626 "
1627
1628 # code dependency declarations
1629
1630 # architecture extensions
1631
1632 armv5te_deps="arm"
1633 armv6_deps="arm"
1634 armv6t2_deps="arm"
1635 armv8_deps="aarch64"
1636 neon_deps_any="aarch64 arm"
1637 vfp_deps_any="aarch64 arm"
1638 vfpv3_deps="vfp"
1639
1640 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1641
1642 altivec_deps="ppc"
1643 ppc4xx_deps="ppc"
1644
1645 cpunop_deps="i686"
1646 x86_64_select="i686"
1647 x86_64_suggest="fast_cmov"
1648
1649 amd3dnow_deps="mmx"
1650 amd3dnowext_deps="amd3dnow"
1651 i686_deps="x86"
1652 mmx_deps="x86"
1653 mmxext_deps="mmx"
1654 sse_deps="mmxext"
1655 sse2_deps="sse"
1656 sse3_deps="sse2"
1657 ssse3_deps="sse3"
1658 sse4_deps="ssse3"
1659 sse42_deps="sse4"
1660 avx_deps="sse42"
1661 xop_deps="avx"
1662 fma3_deps="avx"
1663 fma4_deps="avx"
1664 avx2_deps="avx"
1665
1666 mmx_external_deps="yasm"
1667 mmx_inline_deps="inline_asm"
1668 mmx_suggest="mmx_external mmx_inline"
1669
1670 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1671 eval dep=\$${ext}_deps
1672 eval ${ext}_external_deps='"${dep}_external"'
1673 eval ${ext}_inline_deps='"${dep}_inline"'
1674 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1675 done
1676
1677 aligned_stack_if_any="aarch64 ppc x86"
1678 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1679 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1680 fast_unaligned_if_any="aarch64 ppc x86"
1681
1682 need_memalign="altivec neon sse"
1683
1684 # system capabilities
1685 log2_deps="!libc_msvcrt"
1686
1687 symver_if_any="symver_asm_label symver_gnu_asm"
1688
1689 # threading support
1690 atomics_gcc_if="sync_val_compare_and_swap"
1691 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1692 atomics_win32_if="MemoryBarrier"
1693 atomics_native_if_any="$ATOMICS_LIST"
1694 w32threads_deps="atomics_native"
1695 threads_if_any="$THREADS_LIST"
1696
1697 # subsystems
1698 dct_select="rdft"
1699 error_resilience_select="dsputil"
1700 mdct_select="fft"
1701 rdft_select="fft"
1702 mpegaudio_select="mpegaudiodsp"
1703 mpegaudiodsp_select="dct"
1704 mpegvideo_select="dsputil hpeldsp videodsp"
1705 mpegvideoenc_select="dsputil mpegvideo"
1706
1707 # decoders / encoders
1708 aac_decoder_select="mdct sinewin"
1709 aac_encoder_select="audio_frame_queue mdct sinewin"
1710 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1711 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1712 ac3_encoder_select="mdct ac3dsp dsputil"
1713 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1714 aic_decoder_select="dsputil golomb"
1715 alac_encoder_select="lpc"
1716 als_decoder_select="dsputil"
1717 amrnb_decoder_select="lsp"
1718 amrwb_decoder_select="lsp"
1719 amv_decoder_select="sp5x_decoder"
1720 ape_decoder_select="dsputil"
1721 asv1_decoder_select="dsputil"
1722 asv1_encoder_select="dsputil"
1723 asv2_decoder_select="dsputil"
1724 asv2_encoder_select="dsputil"
1725 atrac1_decoder_select="mdct sinewin"
1726 atrac3_decoder_select="mdct"
1727 atrac3p_decoder_select="mdct sinewin"
1728 bink_decoder_select="dsputil hpeldsp"
1729 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1730 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1731 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1732 cllc_decoder_select="dsputil"
1733 comfortnoise_encoder_select="lpc"
1734 cook_decoder_select="dsputil mdct sinewin"
1735 cscd_decoder_select="lzo"
1736 cscd_decoder_suggest="zlib"
1737 dca_decoder_select="mdct"
1738 dnxhd_decoder_select="dsputil"
1739 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1740 dvvideo_decoder_select="dsputil"
1741 dvvideo_encoder_select="dsputil"
1742 dxa_decoder_deps="zlib"
1743 eac3_decoder_select="ac3_decoder"
1744 eac3_encoder_select="ac3_encoder"
1745 eamad_decoder_select="aandcttables dsputil mpegvideo"
1746 eatgq_decoder_select="aandcttables dsputil"
1747 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1748 exr_decoder_deps="zlib"
1749 ffv1_decoder_select="golomb rangecoder"
1750 ffv1_encoder_select="rangecoder"
1751 ffvhuff_decoder_select="huffyuv_decoder"
1752 ffvhuff_encoder_select="huffyuv_encoder"
1753 fic_decoder_select="golomb"
1754 flac_decoder_select="golomb"
1755 flac_encoder_select="dsputil golomb lpc"
1756 flashsv_decoder_deps="zlib"
1757 flashsv_encoder_deps="zlib"
1758 flashsv2_decoder_deps="zlib"
1759 flv_decoder_select="h263_decoder"
1760 flv_encoder_select="h263_encoder"
1761 fourxm_decoder_select="dsputil"
1762 fraps_decoder_select="dsputil huffman"
1763 g2m_decoder_deps="zlib"
1764 g2m_decoder_select="dsputil"
1765 h261_decoder_select="error_resilience mpegvideo"
1766 h261_encoder_select="aandcttables mpegvideoenc"
1767 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1768 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1769 h263i_decoder_select="h263_decoder"
1770 h263p_encoder_select="h263_encoder"
1771 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1772 h264_decoder_suggest="error_resilience"
1773 hevc_decoder_select="cabac dsputil golomb videodsp"
1774 huffyuv_decoder_select="dsputil"
1775 huffyuv_encoder_select="dsputil huffman"
1776 iac_decoder_select="imc_decoder"
1777 imc_decoder_select="dsputil fft mdct sinewin"
1778 indeo3_decoder_select="hpeldsp"
1779 interplay_video_decoder_select="hpeldsp"
1780 jpegls_decoder_select="golomb mjpeg_decoder"
1781 jpegls_encoder_select="golomb"
1782 jv_decoder_select="dsputil"
1783 lagarith_decoder_select="dsputil"
1784 ljpeg_encoder_select="aandcttables mpegvideoenc"
1785 loco_decoder_select="golomb"
1786 mdec_decoder_select="dsputil error_resilience mpegvideo"
1787 metasound_decoder_select="lsp mdct sinewin"
1788 mimic_decoder_select="dsputil hpeldsp"
1789 mjpeg_decoder_select="dsputil hpeldsp"
1790 mjpeg_encoder_select="aandcttables mpegvideoenc"
1791 mjpegb_decoder_select="mjpeg_decoder"
1792 mlp_decoder_select="mlp_parser"
1793 motionpixels_decoder_select="dsputil"
1794 mp1_decoder_select="mpegaudio"
1795 mp1float_decoder_select="mpegaudio"
1796 mp2_decoder_select="mpegaudio"
1797 mp2float_decoder_select="mpegaudio"
1798 mp3_decoder_select="mpegaudio"
1799 mp3adu_decoder_select="mpegaudio"
1800 mp3adufloat_decoder_select="mpegaudio"
1801 mp3float_decoder_select="mpegaudio"
1802 mp3on4_decoder_select="mpegaudio"
1803 mp3on4float_decoder_select="mpegaudio"
1804 mpc7_decoder_select="dsputil mpegaudiodsp"
1805 mpc8_decoder_select="mpegaudiodsp"
1806 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1807 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1808 mpeg1video_decoder_select="error_resilience mpegvideo"
1809 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1810 mpeg2video_decoder_select="error_resilience mpegvideo"
1811 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1812 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1813 mpeg4_encoder_select="h263_encoder"
1814 msmpeg4v1_decoder_select="h263_decoder"
1815 msmpeg4v2_decoder_select="h263_decoder"
1816 msmpeg4v2_encoder_select="h263_encoder"
1817 msmpeg4v3_decoder_select="h263_decoder"
1818 msmpeg4v3_encoder_select="h263_encoder"
1819 mss2_decoder_select="error_resilience vc1_decoder"
1820 mxpeg_decoder_select="mjpeg_decoder"
1821 nellymoser_decoder_select="mdct sinewin"
1822 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1823 nuv_decoder_select="dsputil lzo"
1824 on2avc_decoder_select="mdct"
1825 opus_decoder_deps="avresample"
1826 png_decoder_deps="zlib"
1827 png_encoder_deps="zlib"
1828 png_encoder_select="dsputil"
1829 prores_decoder_select="dsputil"
1830 prores_encoder_select="dsputil"
1831 qcelp_decoder_select="lsp"
1832 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1833 ra_144_encoder_select="audio_frame_queue lpc"
1834 ralf_decoder_select="golomb"
1835 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1836 rv10_encoder_select="h263_encoder"
1837 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1838 rv20_encoder_select="h263_encoder"
1839 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1840 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1841 shorten_decoder_select="golomb"
1842 sipr_decoder_select="lsp"
1843 sp5x_decoder_select="mjpeg_decoder"
1844 svq1_decoder_select="hpeldsp"
1845 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1846 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1847 svq3_decoder_suggest="zlib"
1848 tak_decoder_select="dsputil"
1849 theora_decoder_select="vp3_decoder"
1850 thp_decoder_select="mjpeg_decoder"
1851 tiff_decoder_suggest="zlib"
1852 tiff_encoder_suggest="zlib"
1853 truehd_decoder_select="mlp_decoder"
1854 truemotion2_decoder_select="dsputil"
1855 truespeech_decoder_select="dsputil"
1856 tscc_decoder_deps="zlib"
1857 twinvq_decoder_select="mdct lsp sinewin"
1858 utvideo_decoder_select="dsputil"
1859 utvideo_encoder_select="dsputil huffman"
1860 vble_decoder_select="dsputil"
1861 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1862 vc1image_decoder_select="vc1_decoder"
1863 vorbis_decoder_select="mdct"
1864 vorbis_encoder_select="mdct"
1865 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1866 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1867 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1868 vp6a_decoder_select="vp6_decoder"
1869 vp6f_decoder_select="vp6_decoder"
1870 vp7_decoder_select="h264pred videodsp"
1871 vp8_decoder_select="h264pred videodsp"
1872 vp9_decoder_select="videodsp"
1873 webp_decoder_select="vp8_decoder"
1874 wmapro_decoder_select="mdct sinewin"
1875 wmav1_decoder_select="mdct sinewin"
1876 wmav1_encoder_select="mdct sinewin"
1877 wmav2_decoder_select="mdct sinewin"
1878 wmav2_encoder_select="mdct sinewin"
1879 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1880 wmv1_decoder_select="h263_decoder"
1881 wmv1_encoder_select="h263_encoder"
1882 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1883 wmv2_encoder_select="h263_encoder"
1884 wmv3_decoder_select="vc1_decoder"
1885 wmv3image_decoder_select="wmv3_decoder"
1886 zerocodec_decoder_deps="zlib"
1887 zlib_decoder_deps="zlib"
1888 zlib_encoder_deps="zlib"
1889 zmbv_decoder_deps="zlib"
1890 zmbv_encoder_deps="zlib"
1891
1892 # hardware accelerators
1893 dxva2_deps="dxva2api_h"
1894 vaapi_deps="va_va_h"
1895 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1896 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1897 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1898
1899 h263_vaapi_hwaccel_deps="vaapi"
1900 h263_vaapi_hwaccel_select="h263_decoder"
1901 h263_vdpau_hwaccel_deps="vdpau"
1902 h263_vdpau_hwaccel_select="h263_decoder"
1903 h264_dxva2_hwaccel_deps="dxva2"
1904 h264_dxva2_hwaccel_select="h264_decoder"
1905 h264_vaapi_hwaccel_deps="vaapi"
1906 h264_vaapi_hwaccel_select="h264_decoder"
1907 h264_vda_hwaccel_deps="vda"
1908 h264_vda_hwaccel_select="h264_decoder"
1909 h264_vda_old_hwaccel_deps="vda"
1910 h264_vda_old_hwaccel_select="h264_decoder"
1911 h264_vdpau_hwaccel_deps="vdpau"
1912 h264_vdpau_hwaccel_select="h264_decoder"
1913 mpeg1_vdpau_hwaccel_deps="vdpau"
1914 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1915 mpeg2_dxva2_hwaccel_deps="dxva2"
1916 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1917 mpeg2_vaapi_hwaccel_deps="vaapi"
1918 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1919 mpeg2_vdpau_hwaccel_deps="vdpau"
1920 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1921 mpeg4_vaapi_hwaccel_deps="vaapi"
1922 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1923 mpeg4_vdpau_hwaccel_deps="vdpau"
1924 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1925 vc1_dxva2_hwaccel_deps="dxva2"
1926 vc1_dxva2_hwaccel_select="vc1_decoder"
1927 vc1_vaapi_hwaccel_deps="vaapi"
1928 vc1_vaapi_hwaccel_select="vc1_decoder"
1929 vc1_vdpau_hwaccel_deps="vdpau"
1930 vc1_vdpau_hwaccel_select="vc1_decoder"
1931 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1932 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1933 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1934
1935 # parsers
1936 h264_parser_select="h264_decoder"
1937 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1938 mpegvideo_parser_select="error_resilience mpegvideo"
1939 vc1_parser_select="mpegvideo"
1940
1941 # external libraries
1942 libfaac_encoder_deps="libfaac"
1943 libfaac_encoder_select="audio_frame_queue"
1944 libfdk_aac_decoder_deps="libfdk_aac"
1945 libfdk_aac_encoder_deps="libfdk_aac"
1946 libfdk_aac_encoder_select="audio_frame_queue"
1947 libgsm_decoder_deps="libgsm"
1948 libgsm_encoder_deps="libgsm"
1949 libgsm_ms_decoder_deps="libgsm"
1950 libgsm_ms_encoder_deps="libgsm"
1951 libilbc_decoder_deps="libilbc"
1952 libilbc_encoder_deps="libilbc"
1953 libmp3lame_encoder_deps="libmp3lame"
1954 libmp3lame_encoder_select="audio_frame_queue"
1955 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1956 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1957 libopencore_amrnb_encoder_select="audio_frame_queue"
1958 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1959 libopenjpeg_decoder_deps="libopenjpeg"
1960 libopenjpeg_encoder_deps="libopenjpeg"
1961 libopus_decoder_deps="libopus"
1962 libopus_encoder_deps="libopus"
1963 libopus_encoder_select="audio_frame_queue"
1964 libschroedinger_decoder_deps="libschroedinger"
1965 libschroedinger_encoder_deps="libschroedinger"
1966 libspeex_decoder_deps="libspeex"
1967 libspeex_encoder_deps="libspeex"
1968 libspeex_encoder_select="audio_frame_queue"
1969 libtheora_encoder_deps="libtheora"
1970 libtwolame_encoder_deps="libtwolame"
1971 libvo_aacenc_encoder_deps="libvo_aacenc"
1972 libvo_aacenc_encoder_select="audio_frame_queue"
1973 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1974 libvorbis_encoder_deps="libvorbis"
1975 libvorbis_encoder_select="audio_frame_queue"
1976 libvpx_vp8_decoder_deps="libvpx"
1977 libvpx_vp8_encoder_deps="libvpx"
1978 libvpx_vp9_decoder_deps="libvpx"
1979 libvpx_vp9_encoder_deps="libvpx"
1980 libwavpack_encoder_deps="libwavpack"
1981 libwebp_encoder_deps="libwebp"
1982 libx264_encoder_deps="libx264"
1983 libx265_encoder_deps="libx265"
1984 libxavs_encoder_deps="libxavs"
1985 libxvid_encoder_deps="libxvid"
1986
1987 # demuxers / muxers
1988 ac3_demuxer_select="ac3_parser"
1989 asf_demuxer_select="riffdec"
1990 asf_muxer_select="riffenc"
1991 asf_stream_muxer_select="asf_muxer"
1992 avi_demuxer_select="riffdec"
1993 avi_muxer_select="riffenc"
1994 avisynth_demuxer_deps="avisynth"
1995 avisynth_demuxer_select="riffdec"
1996 caf_demuxer_select="riffdec"
1997 dirac_demuxer_select="dirac_parser"
1998 dxa_demuxer_select="riffdec"
1999 eac3_demuxer_select="ac3_parser"
2000 f4v_muxer_select="mov_muxer"
2001 flac_demuxer_select="flac_parser"
2002 hds_muxer_select="flv_muxer"
2003 hls_muxer_select="mpegts_muxer"
2004 ipod_muxer_select="mov_muxer"
2005 ismv_muxer_select="mov_muxer"
2006 matroska_audio_muxer_select="matroska_muxer"
2007 matroska_demuxer_select="riffdec"
2008 matroska_demuxer_suggest="bzlib lzo zlib"
2009 matroska_muxer_select="riffenc"
2010 mmf_muxer_select="riffenc"
2011 mov_demuxer_select="riffdec"
2012 mov_demuxer_suggest="zlib"
2013 mov_muxer_select="riffenc rtpenc_chain"
2014 mp3_demuxer_select="mpegaudio_parser"
2015 mp4_muxer_select="mov_muxer"
2016 mpegts_muxer_select="adts_muxer latm_muxer"
2017 mpegtsraw_demuxer_select="mpegts_demuxer"
2018 mxf_d10_muxer_select="mxf_muxer"
2019 nut_muxer_select="riffenc"
2020 nuv_demuxer_select="riffdec"
2021 ogg_demuxer_select="golomb"
2022 psp_muxer_select="mov_muxer"
2023 rtp_demuxer_select="sdp_demuxer"
2024 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2025 rtsp_demuxer_select="http_protocol rtpdec"
2026 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2027 sap_demuxer_select="sdp_demuxer"
2028 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2029 sdp_demuxer_select="rtpdec"
2030 smoothstreaming_muxer_select="ismv_muxer"
2031 spdif_muxer_select="aac_parser"
2032 tak_demuxer_select="tak_parser"
2033 tg2_muxer_select="mov_muxer"
2034 tgp_muxer_select="mov_muxer"
2035 w64_demuxer_select="wav_demuxer"
2036 wav_demuxer_select="riffdec"
2037 wav_muxer_select="riffenc"
2038 webm_muxer_select="riffenc"
2039 wtv_demuxer_select="riffdec"
2040 xmv_demuxer_select="riffdec"
2041 xwma_demuxer_select="riffdec"
2042
2043 # indevs / outdevs
2044 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2045 alsa_outdev_deps="alsa_asoundlib_h"
2046 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2047 dv1394_indev_deps="dv1394"
2048 dv1394_indev_select="dv_demuxer"
2049 fbdev_indev_deps="linux_fb_h"
2050 jack_indev_deps="jack_jack_h pthreads"
2051 libcdio_indev_deps="libcdio"
2052 libdc1394_indev_deps="libdc1394"
2053 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2054 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2055 pulse_indev_deps="libpulse"
2056 sndio_indev_deps="sndio_h"
2057 sndio_outdev_deps="sndio_h"
2058 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2059 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2060 vfwcap_indev_extralibs="-lavicap32"
2061 x11grab_indev_deps="x11grab XShmCreateImage"
2062
2063 # protocols
2064 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2065 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2066 ffrtmpcrypt_protocol_select="tcp_protocol"
2067 ffrtmphttp_protocol_deps="!librtmp_protocol"
2068 ffrtmphttp_protocol_select="http_protocol"
2069 gopher_protocol_select="network"
2070 http_protocol_select="tcp_protocol"
2071 httpproxy_protocol_select="tcp_protocol"
2072 https_protocol_select="tls_protocol"
2073 librtmp_protocol_deps="librtmp"
2074 librtmpe_protocol_deps="librtmp"
2075 librtmps_protocol_deps="librtmp"
2076 librtmpt_protocol_deps="librtmp"
2077 librtmpte_protocol_deps="librtmp"
2078 mmsh_protocol_select="http_protocol"
2079 mmst_protocol_select="network"
2080 rtmp_protocol_deps="!librtmp_protocol"
2081 rtmp_protocol_select="tcp_protocol"
2082 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2083 rtmps_protocol_deps="!librtmp_protocol"
2084 rtmps_protocol_select="tls_protocol"
2085 rtmpt_protocol_select="ffrtmphttp_protocol"
2086 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2087 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2088 rtp_protocol_select="udp_protocol"
2089 sctp_protocol_deps="struct_sctp_event_subscribe"
2090 sctp_protocol_select="network"
2091 srtp_protocol_select="rtp_protocol"
2092 tcp_protocol_select="network"
2093 tls_protocol_deps_any="openssl gnutls"
2094 tls_protocol_select="tcp_protocol"
2095 udp_protocol_select="network"
2096 unix_protocol_deps="sys_un_h"
2097 unix_protocol_select="network"
2098
2099 # filters
2100 blackframe_filter_deps="gpl"
2101 boxblur_filter_deps="gpl"
2102 bs2b_filter_deps="libbs2b"
2103 cropdetect_filter_deps="gpl"
2104 delogo_filter_deps="gpl"
2105 drawtext_filter_deps="libfreetype"
2106 frei0r_filter_deps="frei0r dlopen"
2107 frei0r_filter_extralibs='$ldl'
2108 frei0r_src_filter_deps="frei0r dlopen"
2109 frei0r_src_filter_extralibs='$ldl'
2110 hqdn3d_filter_deps="gpl"
2111 interlace_filter_deps="gpl"
2112 ocv_filter_deps="libopencv"
2113 resample_filter_deps="avresample"
2114 scale_filter_deps="swscale"
2115
2116 # examples
2117 avcodec_example_deps="avcodec avutil"
2118 filter_audio_example_deps="avfilter avutil"
2119 metadata_example_deps="avformat avutil"
2120 output_example_deps="avcodec avformat avutil swscale"
2121 transcode_aac_example_deps="avcodec avformat avresample"
2122
2123 # libraries, in linking order
2124 avcodec_deps="avutil"
2125 avdevice_deps="avformat avcodec avutil"
2126 avfilter_deps="avutil"
2127 avformat_deps="avcodec avutil"
2128 avresample_deps="avutil"
2129 swscale_deps="avutil"
2130
2131 # programs
2132 avconv_deps="avcodec avfilter avformat avresample swscale"
2133 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2134 fps_filter null_filter resample_filter scale_filter
2135 setpts_filter trim_filter"
2136 avplay_deps="avcodec avformat avresample swscale sdl"
2137 avplay_libs='$sdl_libs'
2138 avplay_select="rdft"
2139 avprobe_deps="avcodec avformat"
2140 avserver_deps="avformat fork !shared"
2141 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2142
2143 # documentation
2144 pod2man_deps="doc"
2145 texi2html_deps="doc"
2146
2147 # default parameters
2148
2149 logfile="config.log"
2150
2151 # installation paths
2152 prefix_default="/usr/local"
2153 bindir_default='${prefix}/bin'
2154 datadir_default='${prefix}/share/avconv'
2155 docdir_default='${prefix}/share/doc/libav'
2156 incdir_default='${prefix}/include'
2157 libdir_default='${prefix}/lib'
2158 mandir_default='${prefix}/share/man'
2159 shlibdir_default="$libdir_default"
2160
2161 # toolchain
2162 ar_default="ar"
2163 cc_default="gcc"
2164 host_cc_default="gcc"
2165 cp_f="cp -f"
2166 ln_s="ln -s -f"
2167 nm_default="nm -g"
2168 objformat="elf"
2169 pkg_config_default=pkg-config
2170 ranlib="ranlib"
2171 strip="strip"
2172 yasmexe="yasm"
2173
2174 nogas=":"
2175
2176 # machine
2177 arch_default=$(uname -m)
2178 cpu="generic"
2179
2180 # OS
2181 target_os_default=$(tolower $(uname -s))
2182 host_os=$target_os_default
2183
2184 # configurable options
2185 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2186
2187 enable asm
2188 enable debug
2189 enable doc
2190 enable optimizations
2191 enable safe_bitstream_reader
2192 enable static
2193 enable swscale_alpha
2194
2195 # By default, enable only those hwaccels that have no external dependencies.
2196 enable dxva2 vdpau
2197
2198 # build settings
2199 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2200 LIBPREF="lib"
2201 LIBSUF=".a"
2202 FULLNAME='$(NAME)$(BUILDSUF)'
2203 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2204 SLIBPREF="lib"
2205 SLIBSUF=".so"
2206 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2207 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2208 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2209 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2210 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2211 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2212
2213 asflags_filter=echo
2214 cflags_filter=echo
2215 ldflags_filter=echo
2216
2217 AS_C='-c'
2218 AS_O='-o $@'
2219 CC_C='-c'
2220 CC_E='-E -o $@'
2221 CC_O='-o $@'
2222 LD_O='-o $@'
2223 LD_LIB='-l%'
2224 LD_PATH='-L'
2225 HOSTCC_C='-c'
2226 HOSTCC_E='-E -o $@'
2227 HOSTCC_O='-o $@'
2228 HOSTLD_O='-o $@'
2229
2230 host_libs='-lm'
2231 host_cflags_filter=echo
2232 host_ldflags_filter=echo
2233
2234 target_path='$(CURDIR)'
2235
2236 # since the object filename is not given with the -MM flag, the compiler
2237 # is only able to print the basename, and we must add the path ourselves
2238 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2239 DEPFLAGS='-MM'
2240
2241 # find source path
2242 if test -f configure; then
2243 source_path=.
2244 else
2245 source_path=$(cd $(dirname "$0"); pwd)
2246 echo "$source_path" | grep -q '[[:blank:]]' &&
2247 die "Out of tree builds are impossible with whitespace in source path."
2248 test -e "$source_path/config.h" &&
2249 die "Out of tree builds are impossible with config.h in source dir."
2250 fi
2251
2252 for v in "$@"; do
2253 r=${v#*=}
2254 l=${v%"$r"}
2255 r=$(sh_quote "$r")
2256 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2257 done
2258
2259 find_things(){
2260 thing=$1
2261 pattern=$2
2262 file=$source_path/$3
2263 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2264 }
2265
2266 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2267 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2268 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2269 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2270 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2271 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2272 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2273 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2274 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2275 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2276 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2277
2278 ALL_COMPONENTS="
2279 $BSF_LIST
2280 $DECODER_LIST
2281 $DEMUXER_LIST
2282 $ENCODER_LIST
2283 $FILTER_LIST
2284 $HWACCEL_LIST
2285 $INDEV_LIST
2286 $MUXER_LIST
2287 $OUTDEV_LIST
2288 $PARSER_LIST
2289 $PROTOCOL_LIST
2290 "
2291
2292 for n in $COMPONENT_LIST; do
2293 v=$(toupper ${n%s})_LIST
2294 eval enable \$$v
2295 eval ${n}_if_any="\$$v"
2296 done
2297
2298 enable $ARCH_EXT_LIST
2299
2300 die_unknown(){
2301 echo "Unknown option \"$1\"."
2302 echo "See $0 --help for available options."
2303 exit 1
2304 }
2305
2306 print_3_columns() {
2307 cat | tr ' ' '\n' | sort | pr -r -3 -t
2308 }
2309
2310 show_list() {
2311 suffix=_$1
2312 shift
2313 echo $* | sed s/$suffix//g | print_3_columns
2314 exit 0
2315 }
2316
2317 rand_list(){
2318 IFS=', '
2319 set -- $*
2320 unset IFS
2321 for thing; do
2322 comp=${thing%:*}
2323 prob=${thing#$comp}
2324 prob=${prob#:}
2325 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2326 echo "prob ${prob:-0.5}"
2327 printf '%s\n' $comp
2328 done
2329 }
2330
2331 do_random(){
2332 action=$1
2333 shift
2334 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2335 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2336 }
2337
2338 for opt do
2339 optval="${opt#*=}"
2340 case "$opt" in
2341 --extra-ldflags=*)
2342 add_ldflags $optval
2343 ;;
2344 --extra-libs=*)
2345 add_extralibs $optval
2346 ;;
2347 --disable-devices)
2348 disable $INDEV_LIST $OUTDEV_LIST
2349 ;;
2350 --enable-debug=*)
2351 debuglevel="$optval"
2352 ;;
2353 --disable-programs)
2354 disable $PROGRAM_LIST
2355 ;;
2356 --disable-everything)
2357 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2358 ;;
2359 --disable-all)
2360 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2361 disable $LIBRARY_LIST $PROGRAM_LIST doc
2362 ;;
2363 --enable-random|--disable-random)
2364 action=${opt%%-random}
2365 do_random ${action#--} $COMPONENT_LIST
2366 ;;
2367 --enable-random=*|--disable-random=*)
2368 action=${opt%%-random=*}
2369 do_random ${action#--} $optval
2370 ;;
2371 --enable-*=*|--disable-*=*)
2372 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2373 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2374 eval list=\$$(toupper $thing)_LIST
2375 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2376 $action $(filter "$name" $list)
2377 ;;
2378 --enable-?*|--disable-?*)
2379 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2380 if is_in $option $COMPONENT_LIST; then
2381 test $action = disable && action=unset
2382 eval $action \$$(toupper ${option%s})_LIST
2383 elif is_in $option $CMDLINE_SELECT; then
2384 $action $option
2385 else
2386 die_unknown $opt
2387 fi
2388 ;;
2389 --list-*)
2390 NAME="${opt#--list-}"
2391 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2392 NAME=${NAME%s}
2393 eval show_list $NAME \$$(toupper $NAME)_LIST
2394 ;;
2395 --help|-h) show_help
2396 ;;
2397 *)
2398 optname="${opt%%=*}"
2399 optname="${optname#--}"
2400 optname=$(echo "$optname" | sed 's/-/_/g')
2401 if is_in $optname $CMDLINE_SET; then
2402 eval $optname='$optval'
2403 elif is_in $optname $CMDLINE_APPEND; then
2404 append $optname "$optval"
2405 else
2406 die_unknown $opt
2407 fi
2408 ;;
2409 esac
2410 done
2411
2412 disabled logging && logfile=/dev/null
2413
2414 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2415 set >> $logfile
2416
2417 test -n "$cross_prefix" && enable cross_compile
2418
2419 if enabled cross_compile; then
2420 test -n "$arch" && test -n "$target_os" ||
2421 die "Must specify target arch and OS when cross-compiling"
2422 fi
2423
2424 ar_default="${cross_prefix}${ar_default}"
2425 cc_default="${cross_prefix}${cc_default}"
2426 nm_default="${cross_prefix}${nm_default}"
2427 pkg_config_default="${cross_prefix}${pkg_config_default}"
2428 ranlib="${cross_prefix}${ranlib}"
2429 strip="${cross_prefix}${strip}"
2430
2431 sysinclude_default="${sysroot}/usr/include"
2432
2433 case "$toolchain" in
2434 clang-asan)
2435 cc_default="clang"
2436 add_cflags -fsanitize=address
2437 add_ldflags -fsanitize=address
2438 ;;
2439 clang-tsan)
2440 cc_default="clang"
2441 add_cflags -fsanitize=thread -pie
2442 add_ldflags -fsanitize=thread -pie
2443 ;;
2444 clang-usan)
2445 cc_default="clang"
2446 add_cflags -fsanitize=undefined
2447 add_ldflags -fsanitize=undefined
2448 ;;
2449 gcc-asan)
2450 cc_default="gcc"
2451 add_cflags -fsanitize=address
2452 add_ldflags -fsanitize=address
2453 ;;
2454 gcc-tsan)
2455 cc_default="gcc"
2456 add_cflags -fsanitize=thread -pie -fPIC
2457 add_ldflags -fsanitize=thread -pie -fPIC
2458 ;;
2459 gcc-usan)
2460 cc_default="gcc"
2461 add_cflags -fsanitize=undefined
2462 add_ldflags -fsanitize=undefined
2463 ;;
2464 valgrind-massif)
2465 target_exec_default="valgrind"
2466 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2467 ;;
2468 valgrind-memcheck)
2469 target_exec_default="valgrind"
2470 target_exec_args="--track-origins=yes --leak-check=full"
2471 ;;
2472 msvc)
2473 # Check whether the current MSVC version needs the C99 converter.
2474 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2475 # support enough of C99 to build libav. Default to the new
2476 # behaviour if the regexp was unable to match anything, since this
2477 # successfully parses the version number of existing supported
2478 # versions that require the converter (MSVC 2010 and 2012).
2479 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2480 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2481 cc_default="cl"
2482 else
2483 cc_default="c99wrap cl"
2484 fi
2485 ld_default="link"
2486 nm_default="dumpbin -symbols"
2487 ar_default="lib"
2488 target_os_default="win32"
2489 # Use a relative path for TMPDIR. This makes sure all the
2490 # ffconf temp files are written with a relative path, avoiding
2491 # issues with msys/win32 path conversion for MSVC parameters
2492 # such as -Fo<file> or -out:<file>.
2493 TMPDIR=.
2494 ;;
2495 icl)
2496 cc_default="icl"
2497 ld_default="xilink"
2498 nm_default="dumpbin -symbols"
2499 ar_default="xilib"
2500 target_os_default="win32"
2501 TMPDIR=.
2502 ;;
2503 gcov)
2504 add_cflags -fprofile-arcs -ftest-coverage
2505 add_ldflags -fprofile-arcs -ftest-coverage
2506 ;;
2507 hardened)
2508 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2509 add_ldflags -Wl,-z,relro -Wl,-z,now
2510 ;;
2511 ?*)
2512 die "Unknown toolchain $toolchain"
2513 ;;
2514 esac
2515
2516 set_default arch cc pkg_config sysinclude target_exec target_os
2517 enabled cross_compile || host_cc_default=$cc
2518 set_default host_cc
2519
2520 if ! $pkg_config --version >/dev/null 2>&1; then
2521 warn "$pkg_config not found, library detection may fail."
2522 pkg_config=false
2523 fi
2524
2525 exesuf() {
2526 case $1 in
2527 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2528 esac
2529 }
2530
2531 EXESUF=$(exesuf $target_os)
2532 HOSTEXESUF=$(exesuf $host_os)
2533
2534 # set temporary file name
2535 : ${TMPDIR:=$TEMPDIR}
2536 : ${TMPDIR:=$TMP}
2537 : ${TMPDIR:=/tmp}
2538
2539 if ! check_cmd mktemp -u XXXXXX; then
2540 # simple replacement for missing mktemp
2541 # NOT SAFE FOR GENERAL USE
2542 mktemp(){
2543 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2544 }
2545 fi
2546
2547 tmpfile(){
2548 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2549 (set -C; exec > $tmp) 2>/dev/null ||
2550 die "Unable to create temporary file in $TMPDIR."
2551 append TMPFILES $tmp
2552 eval $1=$tmp
2553 }
2554
2555 trap 'rm -f -- $TMPFILES' EXIT
2556
2557 tmpfile TMPASM .asm
2558 tmpfile TMPC .c
2559 tmpfile TMPE $EXESUF
2560 tmpfile TMPH .h
2561 tmpfile TMPO .o
2562 tmpfile TMPS .S
2563 tmpfile TMPSH .sh
2564 tmpfile TMPV .ver
2565
2566 unset -f mktemp
2567
2568 chmod +x $TMPE
2569
2570 # make sure we can execute files in $TMPDIR
2571 cat > $TMPSH 2>> $logfile <<EOF
2572 #! /bin/sh
2573 EOF
2574 chmod +x $TMPSH >> $logfile 2>&1
2575 if ! $TMPSH >> $logfile 2>&1; then
2576 cat <<EOF
2577 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2578 variable to another directory and make sure that it is not mounted noexec.
2579 EOF
2580 die "Sanity test failed."
2581 fi
2582
2583 ccc_flags(){
2584 for flag; do
2585 case $flag in
2586 -std=c99) echo -c99 ;;
2587 -mcpu=*) echo -arch ${flag#*=} ;;
2588 -mieee) echo -ieee ;;
2589 -O*|-fast) echo $flag ;;
2590 -fno-math-errno) echo -assume nomath_errno ;;
2591 -g) echo -g3 ;;
2592 -Wall) echo -msg_enable level2 ;;
2593 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2594 -Wl,*) echo $flag ;;
2595 -f*|-W*) ;;
2596 *) echo $flag ;;
2597 esac
2598 done
2599 }
2600
2601 cparser_flags(){
2602 for flag; do
2603 case $flag in
2604 -Wno-switch) echo -Wno-switch-enum ;;
2605 -Wno-format-zero-length) ;;
2606 -Wdisabled-optimization) ;;
2607 -Wno-pointer-sign) echo -Wno-other ;;
2608 *) echo $flag ;;
2609 esac
2610 done
2611 }
2612
2613 msvc_common_flags(){
2614 for flag; do
2615 case $flag in
2616 # In addition to specifying certain flags under the compiler
2617 # specific filters, they must be specified here as well or else the
2618 # generic catch all at the bottom will print the original flag.
2619 -Wall) ;;
2620 -std=c99) ;;
2621 # Common flags
2622 -fomit-frame-pointer) ;;
2623 -g) echo -Z7 ;;
2624 -fno-math-errno) ;;
2625 -fno-common) ;;
2626 -fno-signed-zeros) ;;
2627 -fPIC) ;;
2628 -mthumb) ;;
2629 -march=*) ;;
2630 -lz) echo zlib.lib ;;
2631 -lavifil32) echo vfw32.lib ;;
2632 -lavicap32) echo vfw32.lib user32.lib ;;
2633 -l*) echo ${flag#-l}.lib ;;
2634 *) echo $flag ;;
2635 esac
2636 done
2637 }
2638
2639 msvc_flags(){
2640 msvc_common_flags "$@"
2641 for flag; do
2642 case $flag in
2643 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2644 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2645 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2646 -wd4273 ;;
2647 esac
2648 done
2649 }
2650
2651 icl_flags(){
2652 msvc_common_flags "$@"
2653 for flag; do
2654 case $flag in
2655 # Despite what Intel's documentation says -Wall, which is supported
2656 # on Windows, does enable remarks so disable them here.
2657 -Wall) echo $flag -Qdiag-disable:remark ;;
2658 -std=c99) echo -Qstd=c99 ;;
2659 esac
2660 done
2661 }
2662
2663 pgi_flags(){
2664 for flag; do
2665 case $flag in
2666 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2667 -fomit-frame-pointer) echo -Mnoframe ;;
2668 -g) echo -gopt ;;
2669 *) echo $flag ;;
2670 esac
2671 done
2672 }
2673
2674 suncc_flags(){
2675 for flag; do
2676 case $flag in
2677 -march=*|-mcpu=*)
2678 case "${flag#*=}" in
2679 native) echo -xtarget=native ;;
2680 v9|niagara) echo -xarch=sparc ;;
2681 ultrasparc) echo -xarch=sparcvis ;;
2682 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2683 i586|pentium) echo -xchip=pentium ;;
2684 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2685 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2686 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2687 pentium4*) echo -xtarget=pentium4 ;;
2688 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2689 *-sse3) echo -xarch=sse3 ;;
2690 core2) echo -xarch=ssse3 -xchip=core2 ;;
2691 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2692 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2693 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2694 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2695 k8|opteron|athlon64|athlon-fx)
2696 echo -xarch=sse2a ;;
2697 athlon*) echo -xarch=pentium_proa ;;
2698 esac
2699 ;;
2700 -std=c99) echo -xc99 ;;
2701 -fomit-frame-pointer) echo -xregs=frameptr ;;
2702 -fPIC) echo -KPIC -xcode=pic32 ;;
2703 -W*,*) echo $flag ;;
2704 -f*-*|-W*|-mimpure-text) ;;
2705 -shared) echo -G ;;
2706 *) echo $flag ;;
2707 esac
2708 done
2709 }
2710
2711 tms470_flags(){
2712 for flag; do
2713 case $flag in
2714 -march=*|-mcpu=*)
2715 case "${flag#*=}" in
2716 armv7-a|cortex-a*) echo -mv=7a8 ;;
2717 armv7-r|cortex-r*) echo -mv=7r4 ;;
2718 armv7-m|cortex-m*) echo -mv=7m3 ;;
2719 armv6*|arm11*) echo -mv=6 ;;
2720 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2721 echo -mv=5e ;;
2722 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2723 esac
2724 ;;
2725 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2726 -mfpu=vfp) echo --float_support=vfpv2 ;;
2727 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2728 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2729 -msoft-float) echo --float_support=vfplib ;;
2730 -O[0-3]|-mf=*) echo $flag ;;
2731 -g) echo -g -mn ;;
2732 -pds=*) echo $flag ;;
2733 -D*|-I*) echo $flag ;;
2734 --gcc|--abi=*) echo $flag ;;
2735 -me) echo $flag ;;
2736 esac
2737 done
2738 }
2739
2740 probe_cc(){
2741 pfx=$1
2742 _cc=$2
2743
2744 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2745 unset _ld_o _ldflags _ld_lib _ld_path
2746 unset _depflags _DEPCMD _DEPFLAGS
2747 _flags_filter=echo
2748
2749 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2750 _type=llvm_gcc
2751 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2752 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2753 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2754 _cflags_speed='-O3'
2755 _cflags_size='-Os'
2756 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2757 _type=gcc
2758 gcc_version=$($_cc --version | head -n1)
2759 gcc_basever=$($_cc -dumpversion)
2760 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2761 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2762 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2763 if ! $_cc -dumpversion | grep -q '^2\.'; then
2764 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2765 fi
2766 _cflags_speed='-O3'
2767 _cflags_size='-Os'
2768 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2769 _type=icc
2770 _ident=$($_cc --version | head -n1)
2771 _depflags='-MMD'
2772 _cflags_speed='-O3'
2773 _cflags_size='-Os'
2774 _cflags_noopt='-O1'
2775 elif $_cc -v 2>&1 | grep -q xlc; then
2776 _type=xlc
2777 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2778 _cflags_speed='-O5'
2779 _cflags_size='-O5 -qcompact'
2780 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2781 _type=ccc
2782 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2783 _DEPFLAGS='-M'
2784 _cflags_speed='-fast'
2785 _cflags_size='-O1'
2786 _flags_filter=ccc_flags
2787 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2788 test -d "$sysroot" || die "No valid sysroot specified."
2789 _type=armcc
2790 _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
2791 armcc_conf="$PWD/armcc.conf"
2792 $_cc --arm_linux_configure \
2793 --arm_linux_config_file="$armcc_conf" \
2794 --configure_sysroot="$sysroot" \
2795 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2796 die "Error creating armcc configuration file."
2797 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2798 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2799 as_default="${cross_prefix}gcc"
2800 _depflags='-MMD'
2801 _cflags_speed='-O3'
2802 _cflags_size='-Os'
2803 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2804 _type=tms470
2805 _ident=$($_cc -version | head -n1 | tr -s ' ')
2806 _flags='--gcc --abi=eabi -me'
2807 _cc_e='-ppl -fe=$@'
2808 _cc_o='-fe=$@'
2809 _depflags='-ppa -ppd=$(@:.o=.d)'
2810 _cflags_speed='-O3 -mf=5'
2811 _cflags_size='-O3 -mf=2'
2812 _flags_filter=tms470_flags
2813 elif $_cc -v 2>&1 | grep -q clang; then
2814 _type=clang
2815 _ident=$($_cc --version | head -n1)
2816 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2817 _cflags_speed='-O3'
2818 _cflags_size='-Os'
2819 elif $_cc -V 2>&1 | grep -q Sun; then
2820 _type=suncc
2821 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2822 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2823 _DEPFLAGS='-xM1 -xc99'
2824 _ldflags='-std=c99'
2825 _cflags_speed='-O5'
2826 _cflags_size='-O5 -xspace'
2827 _flags_filter=suncc_flags
2828 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2829 _type=pathscale
2830 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2831 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2832 _cflags_speed='-O2'
2833 _cflags_size='-Os'
2834 _flags_filter='filter_out -Wdisabled-optimization'
2835 elif $_cc -v 2>&1 | grep -q Open64; then
2836 _type=open64
2837 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2838 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2839 _cflags_speed='-O2'
2840 _cflags_size='-Os'
2841 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2842 elif $_cc -V 2>&1 | grep -q Portland; then
2843 _type=pgi
2844 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2845 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2846 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2847 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2848 _cflags_noopt="-O1"
2849 _flags_filter=pgi_flags
2850 elif $_cc 2>&1 | grep -q Microsoft; then
2851 _type=msvc
2852 _ident=$($cc 2>&1 | head -n1)
2853 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2854 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2855 _cflags_speed="-O2"
2856 _cflags_size="-O1"
2857 if $_cc 2>&1 | grep -q Linker; then
2858 _ld_o='-out:$@'
2859 else
2860 _ld_o='-Fe$@'
2861 fi
2862 _cc_o='-Fo$@'
2863 _cc_e='-P -Fi$@'
2864 _flags_filter=msvc_flags
2865 _ld_lib='lib%.a'
2866 _ld_path='-libpath:'
2867 _flags='-nologo'
2868 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2869 if [ $pfx = hostcc ]; then
2870 append _cflags -Dsnprintf=_snprintf
2871 fi
2872 elif $_cc 2>&1 | grep -q Intel; then
2873 _type=icl
2874 _ident=$($cc 2>&1 | head -n1)
2875 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2876 # Not only is O3 broken on 13.x+ but it is slower on all previous
2877 # versions (tested) as well.
2878 _cflags_speed="-O2"
2879 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2880 if $_cc 2>&1 | grep -q Linker; then
2881 _ld_o='-out:$@'
2882 else
2883 _ld_o='-Fe$@'
2884 fi
2885 _cc_o='-Fo$@'
2886 _cc_e='-P'
2887 _flags_filter=icl_flags
2888 _ld_lib='lib%.a'
2889 _ld_path='-libpath:'
2890 # -Qdiag-error to make icl error when seeing certain unknown arguments
2891 _flags='-nologo -Qdiag-error:4044,10157'
2892 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2893 # with MSVC which enables it by default.
2894 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2895 if [ $pfx = hostcc ]; then
2896 append _cflags -Dsnprintf=_snprintf
2897 fi
2898 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2899 _type=cparser
2900 _ident=$($_cc --version | head -n1)
2901 _depflags='-MMD'
2902 _cflags_speed='-O4'
2903 _cflags_size='-O2'
2904 _flags_filter=cparser_flags
2905 fi
2906
2907 eval ${pfx}_type=\$_type
2908 eval ${pfx}_ident=\$_ident
2909 }
2910
2911 set_ccvars(){
2912 eval ${1}_C=\${_cc_c-\${${1}_C}}
2913 eval ${1}_E=\${_cc_e-\${${1}_E}}
2914 eval ${1}_O=\${_cc_o-\${${1}_O}}
2915
2916 if [ -n "$_depflags" ]; then
2917 eval ${1}_DEPFLAGS=\$_depflags
2918 else
2919 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2920 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2921 eval DEP${1}FLAGS=\$_flags
2922 fi
2923 }
2924
2925 probe_cc cc "$cc"
2926 cflags_filter=$_flags_filter
2927 cflags_speed=$_cflags_speed
2928 cflags_size=$_cflags_size
2929 cflags_noopt=$_cflags_noopt
2930 add_cflags $_flags $_cflags
2931 cc_ldflags=$_ldflags
2932 set_ccvars CC
2933
2934 probe_cc hostcc "$host_cc"
2935 host_cflags_filter=$_flags_filter
2936 add_host_cflags $_flags $_cflags
2937 set_ccvars HOSTCC
2938
2939 test -n "$cc_type" && enable $cc_type ||
2940 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2941
2942 : ${as_default:=$cc}
2943 : ${dep_cc_default:=$cc}
2944 : ${ld_default:=$cc}
2945 : ${host_ld_default:=$host_cc}
2946 set_default ar as dep_cc ld host_ld
2947
2948 probe_cc as "$as"
2949 asflags_filter=$_flags_filter
2950 add_asflags $_flags $_cflags
2951 set_ccvars AS
2952
2953 probe_cc ld "$ld"
2954 ldflags_filter=$_flags_filter
2955 add_ldflags $_flags $_ldflags
2956 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2957 LD_O=${_ld_o-$LD_O}
2958 LD_LIB=${_ld_lib-$LD_LIB}
2959 LD_PATH=${_ld_path-$LD_PATH}
2960
2961 probe_cc hostld "$host_ld"
2962 host_ldflags_filter=$_flags_filter
2963 add_host_ldflags $_flags $_ldflags
2964 HOSTLD_O=${_ld_o-$HOSTLD_O}
2965
2966 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2967 probe_cc depcc "$dep_cc"
2968 CCDEP=${_DEPCMD:-$DEPCMD}
2969 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2970 DEPCCFLAGS=$_flags
2971 fi
2972
2973 if $ar 2>&1 | grep -q Microsoft; then
2974 arflags="-nologo"
2975 ar_o='-out:$@'
2976 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2977 arflags="rq"
2978 ar_o='$@'
2979 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2980 arflags='-Xany -r -c'
2981 ar_o='$@'
2982 else
2983 arflags="rc"
2984 ar_o='$@'
2985 fi
2986
2987 add_cflags $extra_cflags
2988 add_asflags $extra_cflags
2989
2990 if test -n "$sysroot"; then
2991 case "$cc_type" in
2992 gcc|llvm_gcc|clang)
2993 add_cppflags --sysroot="$sysroot"
2994 add_ldflags --sysroot="$sysroot"
2995 ;;
2996 tms470)
2997 add_cppflags -I"$sysinclude"
2998 add_ldflags --sysroot="$sysroot"
2999 ;;
3000 esac
3001 fi
3002
3003 if test "$cpu" = host; then
3004 enabled cross_compile &&
3005 die "--cpu=host makes no sense when cross-compiling."
3006
3007 case "$cc_type" in
3008 gcc|llvm_gcc)
3009 check_native(){
3010 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3011 sed -n "/cc1.*$1=/{
3012 s/.*$1=\\([^ ]*\\).*/\\1/
3013 p
3014 q
3015 }" $TMPE
3016 }
3017 cpu=$(check_native -march || check_native -mcpu)
3018 ;;
3019 esac
3020
3021 test "${cpu:-host}" = host &&
3022 die "--cpu=host not supported with compiler $cc"
3023 fi
3024
3025 # Deal with common $arch aliases
3026 case "$arch" in
3027 aarch64|arm64)
3028 arch="aarch64"
3029 ;;
3030 arm*)
3031 arch="arm"
3032 ;;
3033 mips*|IP*)
3034 arch="mips"
3035 ;;
3036 parisc*|hppa*)
3037 arch="parisc"
3038 ;;
3039 "Power Macintosh"|ppc*|powerpc*)
3040 arch="ppc"
3041 ;;
3042 s390|s390x)
3043 arch="s390"
3044 ;;
3045 sh4|sh)
3046 arch="sh4"
3047 ;;
3048 sun4u|sparc*)
3049 arch="sparc"
3050 ;;
3051 tilegx|tile-gx)
3052 arch="tilegx"
3053 ;;
3054 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3055 arch="x86"
3056 ;;
3057 esac
3058
3059 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3060 enable $arch
3061
3062 # Add processor-specific flags
3063 if enabled aarch64; then
3064
3065 case $cpu in
3066 armv*)
3067 cpuflags="-march=$cpu"
3068 ;;
3069 *)
3070 cpuflags="-mcpu=$cpu"
3071 ;;
3072 esac
3073
3074 elif enabled alpha; then
3075
3076 cpuflags="-mcpu=$cpu"
3077
3078 elif enabled arm; then
3079
3080 check_arm_arch() {
3081 check_cpp_condition stddef.h \
3082 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3083 $cpuflags
3084 }
3085
3086 probe_arm_arch() {
3087 if check_arm_arch 4; then echo armv4;
3088 elif check_arm_arch 4T; then echo armv4t;
3089 elif check_arm_arch 5; then echo armv5;
3090 elif check_arm_arch 5E; then echo armv5e;
3091 elif check_arm_arch 5T; then echo armv5t;
3092 elif check_arm_arch 5TE; then echo armv5te;
3093 elif check_arm_arch 5TEJ; then echo armv5te;
3094 elif check_arm_arch 6; then echo armv6;
3095 elif check_arm_arch 6J; then echo armv6j;
3096 elif check_arm_arch 6K; then echo armv6k;
3097 elif check_arm_arch 6Z; then echo armv6z;
3098 elif check_arm_arch 6ZK; then echo armv6zk;
3099 elif check_arm_arch 6T2; then echo armv6t2;
3100 elif check_arm_arch 7; then echo armv7;
3101 elif check_arm_arch 7A 7_A; then echo armv7-a;
3102 elif check_arm_arch 7R 7_R; then echo armv7-r;
3103 elif check_arm_arch 7M 7_M; then echo armv7-m;
3104 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3105 elif check_arm_arch 8A 8_A; then echo armv8-a;
3106 fi
3107 }
3108
3109 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3110
3111 case $cpu in
3112 armv*)
3113 cpuflags="-march=$cpu"
3114 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3115 ;;
3116 *)
3117 cpuflags="-mcpu=$cpu"
3118 case $cpu in
3119 cortex-a*) subarch=armv7a ;;
3120 cortex-r*) subarch=armv7r ;;
3121 cortex-m*) enable thumb; subarch=armv7m ;;
3122 arm11*) subarch=armv6 ;;
3123 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3124 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3125 *) subarch=$(probe_arm_arch) ;;
3126 esac
3127 ;;
3128 esac
3129
3130 case "$subarch" in
3131 armv5t*) enable fast_clz ;;
3132 armv[6-8]*) enable fast_clz fast_unaligned ;;
3133 esac
3134
3135 elif enabled avr32; then
3136
3137 case $cpu in
3138 ap7[02]0[0-2])
3139 subarch="avr32_ap"
3140 cpuflags="-mpart=$cpu"
3141 ;;
3142 ap)
3143 subarch="avr32_ap"
3144 cpuflags="-march=$cpu"
3145 ;;
3146 uc3[ab]*)
3147 subarch="avr32_uc"
3148 cpuflags="-mcpu=$cpu"
3149 ;;
3150 uc)
3151 subarch="avr32_uc"
3152 cpuflags="-march=$cpu"
3153 ;;
3154 esac
3155
3156 elif enabled bfin; then
3157
3158 cpuflags="-mcpu=$cpu"
3159
3160 elif enabled mips; then
3161
3162 cpuflags="-march=$cpu"
3163
3164 elif enabled ppc; then
3165
3166 disable ldbrx
3167
3168 case $(tolower $cpu) in
3169 601|ppc601|powerpc601)
3170 cpuflags="-mcpu=601"
3171 disable altivec
3172 ;;
3173 603*|ppc603*|powerpc603*)
3174 cpuflags="-mcpu=603"
3175 disable altivec
3176 ;;
3177 604*|ppc604*|powerpc604*)
3178 cpuflags="-mcpu=604"
3179 disable altivec
3180 ;;
3181 g3|75*|ppc75*|powerpc75*)
3182 cpuflags="-mcpu=750"
3183 disable altivec
3184 ;;
3185 g4|745*|ppc745*|powerpc745*)
3186 cpuflags="-mcpu=7450"
3187 ;;
3188 74*|ppc74*|powerpc74*)
3189 cpuflags="-mcpu=7400"
3190 ;;
3191 g5|970|ppc970|powerpc970)
3192 cpuflags="-mcpu=970"
3193 ;;
3194 power[3-7]*)
3195 cpuflags="-mcpu=$cpu"
3196 ;;
3197 cell)
3198 cpuflags="-mcpu=cell"
3199 enable ldbrx
3200 ;;
3201 e500mc)
3202 cpuflags="-mcpu=e500mc"
3203 disable altivec
3204 ;;
3205 e500v2)
3206 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3207 disable altivec
3208 disable dcbzl
3209 ;;
3210 e500)
3211 cpuflags="-mcpu=8540 -mhard-float"
3212 disable altivec
3213 disable dcbzl
3214 ;;
3215 esac
3216
3217 elif enabled sparc; then
3218
3219 case $cpu in
3220 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3221 cpuflags="-mcpu=$cpu"
3222 ;;
3223 ultrasparc*|niagara[234])
3224 cpuflags="-mcpu=$cpu"
3225 ;;
3226 esac
3227
3228 elif enabled x86; then
3229
3230 case $cpu in
3231 i[345]86|pentium)
3232 cpuflags="-march=$cpu"
3233 disable mmx
3234 ;;
3235 # targets that do NOT support nopl and conditional mov (cmov)
3236 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3237 cpuflags="-march=$cpu"
3238 disable i686
3239 ;;
3240 # targets that do support nopl and conditional mov (cmov)
3241 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3242 cpuflags="-march=$cpu"
3243 enable i686
3244 enable fast_cmov
3245 ;;
3246 # targets that do support conditional mov but on which it's slow
3247 pentium4|pentium4m|prescott|nocona)
3248 cpuflags="-march=$cpu"
3249 enable i686
3250 disable fast_cmov
3251 ;;
3252 esac
3253
3254 fi
3255
3256 if [ "$cpu" != generic ]; then
3257 add_cflags $cpuflags
3258 add_asflags $cpuflags
3259 fi
3260
3261 # compiler sanity check
3262 check_exec <<EOF
3263 int main(void){ return 0; }
3264 EOF
3265 if test "$?" != 0; then
3266 echo "$cc is unable to create an executable file."
3267 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3268 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3269 echo "Only do this if you know what cross compiling means."
3270 fi
3271 die "C compiler test failed."
3272 fi
3273
3274 add_cppflags -D_ISOC99_SOURCE
3275 check_cflags -std=c99
3276 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3277 #include <stdlib.h>
3278 EOF
3279 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3280 #include <stdlib.h>
3281 EOF
3282
3283 add_host_cppflags -D_ISOC99_SOURCE
3284 check_host_cflags -std=c99
3285 check_host_cflags -Wall
3286 check_host_cflags -O3
3287
3288 check_64bit(){
3289 arch32=$1
3290 arch64=$2
3291 expr=$3
3292 check_code cc "" "int test[2*($expr) - 1]" &&
3293 subarch=$arch64 || subarch=$arch32
3294 }
3295
3296 case "$arch" in
3297 aarch64|alpha|ia64)
3298 spic=$shared
3299 ;;
3300 mips)
3301 check_64bit mips mips64 '_MIPS_SIM > 1'
3302 spic=$shared
3303 ;;
3304 parisc)
3305 check_64bit parisc parisc64 'sizeof(void *) > 4'
3306 spic=$shared
3307 ;;
3308 ppc)
3309 check_64bit ppc ppc64 'sizeof(void *) > 4'
3310 spic=$shared
3311 ;;
3312 s390)
3313 check_64bit s390 s390x 'sizeof(void *) > 4'
3314 spic=$shared
3315 ;;
3316 sparc)
3317 check_64bit sparc sparc64 'sizeof(void *) > 4'
3318 spic=$shared
3319 ;;
3320 x86)
3321 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3322 if test "$subarch" = "x86_64"; then
3323 spic=$shared
3324 fi
3325 ;;
3326 esac
3327
3328 enable $subarch
3329 enabled spic && enable_weak pic
3330
3331 # OS specific
3332 case $target_os in
3333 aix)
3334 SHFLAGS=-shared
3335 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3336 enabled shared && add_ldflags -Wl,-brtl
3337 ;;
3338 haiku)
3339 prefix_default="/boot/common"
3340 network_extralibs="-lnetwork"
3341 host_libs=
3342 ;;
3343 sunos)
3344 SHFLAGS='-shared -Wl,-h,$$(@F)'
3345 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3346 network_extralibs="-lsocket -lnsl"
3347 # When using suncc to build, the Solaris linker will mark
3348 # an executable with each instruction set encountered by
3349 # the Solaris assembler. As our libraries contain their own
3350 # guards for processor-specific code, instead suppress
3351 # generation of the HWCAPS ELF section on Solaris x86 only.
3352 enabled_all suncc x86 &&
3353 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3354 add_ldflags -Wl,-M,mapfile
3355 nm_default='nm -P -g'
3356 ;;
3357 netbsd)
3358 disable symver
3359 oss_indev_extralibs="-lossaudio"
3360 oss_outdev_extralibs="-lossaudio"
3361 ;;
3362 openbsd|bitrig)
3363 disable symver
3364 SHFLAGS='-shared'
3365 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3366 SLIB_INSTALL_LINKS=
3367 oss_indev_extralibs="-lossaudio"
3368 oss_outdev_extralibs="-lossaudio"
3369 ;;
3370 dragonfly)
3371 disable symver
3372 ;;
3373 freebsd)
3374 ;;
3375 bsd/os)
3376 add_extralibs -lpoll -lgnugetopt
3377 ;;
3378 darwin)
3379 gas="gas-preprocessor.pl $cc"
3380 enabled ppc && add_asflags -force_cpusubtype_ALL
3381 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3382 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3383 add_ldflags -Wl,-dynamic,-search_paths_first
3384 SLIBSUF=".dylib"
3385 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3386 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3387 objformat="macho"
3388 enabled x86_64 && objformat="macho64"
3389 enabled_any pic shared ||
3390 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3391 ;;
3392 mingw32*)
3393 if test $target_os = "mingw32ce"; then
3394 disable network
3395 else
3396 target_os=mingw32
3397 fi
3398 LIBTARGET=i386
3399 if enabled x86_64; then
3400 LIBTARGET="i386:x86-64"
3401 elif enabled arm; then
3402 LIBTARGET=arm-wince
3403 fi
3404 check_ldflags -Wl,--nxcompat
3405 check_ldflags -Wl,--dynamicbase
3406 shlibdir_default="$bindir_default"
3407 SLIBPREF=""
3408 SLIBSUF=".dll"
3409 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3410 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3411 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3412 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3413 SLIB_INSTALL_LINKS=
3414 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3415 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3416 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3417 objformat="win32"
3418 dlltool="${cross_prefix}dlltool"
3419 ranlib=:
3420 enable dos_paths
3421 ;;
3422 win32|win64)
3423 disable symver
3424 if enabled shared; then
3425 # Link to the import library instead of the normal static library
3426 # for shared libs.
3427 LD_LIB='%.lib'
3428 # Cannot build both shared and static libs with MSVC or icl.
3429 disable static
3430 fi
3431 shlibdir_default="$bindir_default"
3432 SLIBPREF=""
3433 SLIBSUF=".dll"
3434 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3435 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3436 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3437 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3438 SLIB_INSTALL_LINKS=
3439 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3440 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3441 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3442 objformat="win32"
3443 ranlib=:
3444 enable dos_paths
3445 ;;
3446 cygwin*)
3447 target_os=cygwin
3448 shlibdir_default="$bindir_default"
3449 SLIBPREF="cyg"
3450 SLIBSUF=".dll"
3451 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3452 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3453 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3454 SLIB_INSTALL_LINKS=
3455 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3456 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3457 objformat="win32"
3458 enable dos_paths
3459 ;;
3460 *-dos|freedos|opendos)
3461 network_extralibs="-lsocket"
3462 objformat="coff"
3463 enable dos_paths
3464 add_cppflags -U__STRICT_ANSI__
3465 ;;
3466 linux)
3467 enable dv1394
3468 ;;
3469 irix*)
3470 target_os=irix
3471 ranlib="echo ignoring ranlib"
3472 ;;
3473 os/2*)
3474 ln_s="cp -f"
3475 objformat="aout"
3476 add_cppflags -D_GNU_SOURCE
3477 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3478 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3479 LIBSUF="_s.a"
3480 SLIBPREF=""
3481 SLIBSUF=".dll"
3482 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3483 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3484 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3485 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3486 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3487 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3488 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3489 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3490 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3491 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3492 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3493 enable dos_paths
3494 ;;
3495 gnu/kfreebsd)
3496 add_cppflags -D_BSD_SOURCE
3497 ;;
3498 gnu)
3499 ;;
3500 qnx)
3501 add_cppflags -D_QNX_SOURCE
3502 network_extralibs="-lsocket"
3503 ;;
3504 symbian)
3505 SLIBSUF=".dll"
3506 enable dos_paths
3507 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3508 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3509 add_ldflags -Wl,--target1-abs,--no-undefined \
3510 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3511 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3512 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3513 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3514 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3515 ;;
3516 osf1)
3517 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3518 ;;
3519 minix)
3520 ;;
3521 plan9)
3522 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3523 -D_REENTRANT_SOURCE \
3524 -D_RESEARCH_SOURCE \
3525 -DFD_SETSIZE=96 \
3526 -DHAVE_SOCK_OPTS
3527 add_compat strtod.o strtod=avpriv_strtod
3528 network_extralibs='-lbsd'
3529 exeobjs=compat/plan9/main.o
3530 disable avserver
3531 cp_f='cp'
3532 ;;
3533 none)
3534 ;;
3535 *)
3536 die "Unknown OS '$target_os'."
3537 ;;
3538 esac
3539
3540 # determine libc flavour
3541
3542 probe_libc(){
3543 pfx=$1
3544 pfx_no_=${pfx%_}
3545 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3546 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3547 eval ${pfx}libc_type=uclibc
3548 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3549 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3550 eval ${pfx}libc_type=glibc
3551 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3552 # MinGW headers can be installed on Cygwin, so check for newlib first.
3553 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3554 eval ${pfx}libc_type=newlib
3555 add_${pfx}cppflags -U__STRICT_ANSI__
3556 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3557 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3558 eval ${pfx}libc_type=mingw64
3559 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3560 eval test \$${pfx_no_}cc_type = "gcc" &&
3561 add_${pfx}cppflags -D__printf__=__gnu_printf__
3562 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3563 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3564 eval ${pfx}libc_type=mingw32
3565 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3566 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3567 die "ERROR: MinGW32 runtime version must be >= 3.15."
3568 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3569 eval test \$${pfx_no_}cc_type = "gcc" &&
3570 add_${pfx}cppflags -D__printf__=__gnu_printf__
3571 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3572 eval ${pfx}libc_type=msvcrt
3573 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3574 # 0x601 by default unless something else is set by the user.
3575 # This can easily lead to us detecting functions only present
3576 # in such new versions and producing binaries requiring windows 7.0.
3577 # Therefore explicitly set the default to XP unless the user has
3578 # set something else on the command line.
3579 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3580 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3581 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3582 eval ${pfx}libc_type=klibc
3583 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3584 eval ${pfx}libc_type=bionic
3585 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3586 eval ${pfx}libc_type=solaris
3587 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3588 fi
3589 }
3590
3591 probe_libc
3592 test -n "$libc_type" && enable libc_$libc_type
3593 probe_libc host_
3594 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3595
3596 case $libc_type in
3597 bionic)
3598 add_compat strtod.o strtod=avpriv_strtod
3599 ;;
3600 msvcrt)
3601 add_compat strtod.o strtod=avpriv_strtod
3602 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3603 _snprintf=avpriv_snprintf \
3604 vsnprintf=avpriv_vsnprintf
3605 ;;
3606 esac
3607
3608 # hacks for compiler/libc/os combinations
3609
3610 if enabled_all tms470 libc_glibc; then
3611 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3612 add_cppflags -D__USER_LABEL_PREFIX__=
3613 add_cppflags -D__builtin_memset=memset
3614 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3615 add_cflags -pds=48 # incompatible redefinition of macro
3616 fi
3617
3618 if enabled_all ccc libc_glibc; then
3619 add_ldflags -Wl,-z,now # calls to libots crash without this
3620 fi
3621
3622 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3623 add_cppflags '-I\$(SRC_PATH)/compat/float'
3624
3625 esc(){
3626 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3627 }
3628
3629 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3630
3631 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3632
3633 set_default $PATHS_LIST
3634 set_default nm
3635
3636 # we need to build at least one lib type
3637 if ! enabled_any static shared; then
3638 cat <<EOF
3639 At least one library type must be built.
3640 Specify --enable-static to build the static libraries or --enable-shared to
3641 build the shared libraries as well. To only build the shared libraries specify
3642 --disable-static in addition to --enable-shared.
3643 EOF
3644 exit 1;
3645 fi
3646
3647 die_license_disabled() {
3648 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3649 }
3650
3651 die_license_disabled gpl libcdio
3652 die_license_disabled gpl libx264
3653 die_license_disabled gpl libx265
3654 die_license_disabled gpl libxavs
3655 die_license_disabled gpl libxvid
3656 die_license_disabled gpl x11grab
3657
3658 die_license_disabled nonfree libfaac
3659 die_license_disabled nonfree libfdk_aac
3660 die_license_disabled nonfree openssl
3661
3662 die_license_disabled version3 libopencore_amrnb
3663 die_license_disabled version3 libopencore_amrwb
3664 die_license_disabled version3 libvo_aacenc
3665 die_license_disabled version3 libvo_amrwbenc
3666
3667 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3668
3669 disabled optimizations || check_cflags -fomit-frame-pointer
3670
3671 enable_weak_pic() {
3672 disabled pic && return
3673 enable pic
3674 add_cppflags -DPIC
3675 case "$target_os" in
3676 mingw*|cygwin*)
3677 ;;
3678 *)
3679 add_cflags -fPIC
3680 ;;
3681 esac
3682 add_asflags -fPIC
3683 }
3684
3685 enabled pic && enable_weak_pic
3686
3687 check_cc <<EOF || die "Symbol mangling check failed."
3688 int ff_extern;
3689 EOF
3690 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3691 extern_prefix=${sym%%ff_extern*}
3692
3693 check_cc <<EOF && enable_weak inline_asm
3694 void foo(void) { __asm__ volatile ("" ::); }
3695 EOF
3696
3697 _restrict=
3698 for restrict_keyword in restrict __restrict__ __restrict; do
3699 check_cc <<EOF && _restrict=$restrict_keyword && break
3700 void foo(char * $restrict_keyword p);
3701 EOF
3702 done
3703
3704 check_cc <<EOF && enable pragma_deprecated
3705 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3706 EOF
3707
3708 check_cc <<EOF && enable attribute_packed
3709 struct { int x; } __attribute__((packed)) x;
3710 EOF
3711
3712 check_cc <<EOF && enable attribute_may_alias
3713 union { int x; } __attribute__((may_alias)) x;
3714 EOF
3715
3716 check_cc <<EOF || die "endian test failed"
3717 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3718 EOF
3719 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3720
3721 check_inline_asm inline_asm_labels '"1:\n"'
3722
3723 if enabled aarch64; then
3724 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
3725 # internal assembler in clang 3.3 does not support this instruction
3726 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3727 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3728
3729 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3730
3731 elif enabled alpha; then
3732
3733 check_cflags -mieee
3734
3735 elif enabled arm; then
3736
3737 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3738 enabled thumb && check_cflags -mthumb || check_cflags -marm
3739 nogas=die
3740
3741 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3742 enable vfp_args
3743 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3744 case "${cross_prefix:-$cc}" in
3745 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3746 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3747 __asm__ (".eabi_attribute 28, 1");
3748 int main(void) { return 0; }
3749 EOF
3750 esac
3751 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3752 fi
3753
3754 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3755 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3756 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3757 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3758 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3759 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3760
3761 [ $target_os = linux ] ||
3762 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3763 $ARCH_EXT_LIST_ARM
3764
3765 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3766
3767 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3768
3769 elif enabled mips; then
3770
3771 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3772
3773 elif enabled parisc; then
3774
3775 if enabled gcc; then
3776 case $($cc -dumpversion) in
3777 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3778 esac
3779 fi
3780
3781 elif enabled ppc; then
3782
3783 enable local_aligned_8 local_aligned_16
3784
3785 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3786 check_inline_asm ibm_asm '"add 0, 0, 0"'
3787 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3788 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3789
3790 # AltiVec flags: The FSF version of GCC differs from the Apple version
3791 if enabled altivec; then
3792 nogas=warn
3793 check_cflags -maltivec -mabi=altivec &&
3794 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3795 check_cflags -faltivec
3796
3797 # check if our compiler supports Motorola AltiVec C API
3798 check_cc <<EOF || disable altivec
3799 $inc_altivec_h
3800 int main(void) {
3801 vector signed int v1 = (vector signed int) { 0 };
3802 vector signed int v2 = (vector signed int) { 1 };
3803 v1 = vec_add(v1, v2);
3804 return 0;
3805 }
3806 EOF
3807
3808 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3809 fi
3810
3811 elif enabled x86; then
3812
3813 check_builtin rdtsc intrin.h "__rdtsc()"
3814 check_builtin mm_empty mmintrin.h "_mm_empty()"
3815
3816 enable local_aligned_8 local_aligned_16
3817
3818 # check whether EBP is available on x86
3819 # As 'i' is stored on the stack, this program will crash
3820 # if the base pointer is used to access it because the
3821 # base pointer is cleared in the inline assembly code.
3822 check_exec_crash <<EOF && enable ebp_available
3823 volatile int i=0;
3824 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3825 return i;
3826 EOF
3827
3828 # check whether EBX is available on x86
3829 check_inline_asm ebx_available '""::"b"(0)' &&
3830 check_inline_asm ebx_available '"":::"%ebx"'
3831
3832 # check whether xmm clobbers are supported
3833 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3834
3835 # check whether binutils is new enough to compile SSSE3/MMXEXT
3836 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3837 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3838
3839 if ! disabled_any asm mmx yasm; then
3840 if check_cmd $yasmexe --version; then
3841 enabled x86_64 && yasm_extra="-m amd64"
3842 yasm_debug="-g dwarf2"
3843 elif check_cmd nasm -v; then
3844 yasmexe=nasm
3845 yasm_debug="-g -F dwarf"
3846 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3847 fi
3848
3849 YASMFLAGS="-f $objformat $yasm_extra"
3850 enabled pic && append YASMFLAGS "-DPIC"
3851 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3852 case "$objformat" in
3853 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3854 esac
3855
3856 check_yasm "movbe ecx, [5]" && enable yasm ||
3857 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3858 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
3859 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
3860 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3861 check_yasm "CPU amdnop" || disable cpunop
3862 fi
3863
3864 case "$cpu" in
3865 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3866 disable fast_clz
3867 ;;
3868 esac
3869
3870 fi
3871
3872 if enabled asm; then
3873 as=${gas:=$as}
3874 check_as <<EOF && enable gnu_as || \
3875 $nogas "GNU assembler not found, install gas-preprocessor"
3876 .macro m n
3877 \n: .int 0
3878 .endm
3879 m x
3880 EOF
3881 fi
3882
3883 check_ldflags -Wl,--as-needed
3884
3885 if check_func dlopen; then
3886 ldl=
3887 elif check_func dlopen -ldl; then
3888 ldl=-ldl
3889 fi
3890
3891 if ! disabled network; then
3892 check_func getaddrinfo $network_extralibs
3893 check_func getservbyport $network_extralibs
3894 check_func inet_aton $network_extralibs
3895
3896 check_type netdb.h "struct addrinfo"
3897 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3898 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3899 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3900 check_type poll.h "struct pollfd"
3901 check_type netinet/sctp.h "struct sctp_event_subscribe"
3902 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3903 check_type netinet/in.h "struct sockaddr_in6"
3904 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3905 check_type "sys/types.h sys/socket.h" socklen_t
3906
3907 # Prefer arpa/inet.h over winsock2
3908 if check_header arpa/inet.h ; then
3909 check_func closesocket
3910 elif check_header winsock2.h ; then
3911 check_func_headers winsock2.h closesocket -lws2 &&
3912 network_extralibs="-lws2" ||
3913 { check_func_headers winsock2.h closesocket -lws2_32 &&
3914 network_extralibs="-lws2_32"; } || disable winsock2_h network
3915 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3916
3917 check_type ws2tcpip.h socklen_t
3918 check_type ws2tcpip.h "struct addrinfo"
3919 check_type ws2tcpip.h "struct group_source_req"
3920 check_type ws2tcpip.h "struct ip_mreq_source"
3921 check_type ws2tcpip.h "struct ipv6_mreq"
3922 check_type winsock2.h "struct pollfd"
3923 check_struct winsock2.h "struct sockaddr" sa_len
3924 check_type ws2tcpip.h "struct sockaddr_in6"
3925 check_type ws2tcpip.h "struct sockaddr_storage"
3926 else
3927 disable network
3928 fi
3929 fi
3930
3931 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3932 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3933 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3934 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3935
3936 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3937 check_func ${malloc_prefix}memalign && enable memalign
3938 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3939
3940 check_func fcntl
3941 check_func fork
3942 check_func gethrtime
3943 check_func getopt
3944 check_func getrusage
3945 check_func gettimeofday
3946 check_func isatty
3947 check_func localtime_r
3948 check_func mach_absolute_time
3949 check_func mkstemp
3950 check_func mmap
3951 check_func mprotect
3952 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3953 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3954 check_func sched_getaffinity
3955 check_func setrlimit
3956 check_func strerror_r
3957 check_func strptime
3958 check_func sysconf
3959 check_func sysctl
3960 check_func usleep
3961
3962 check_func_headers io.h setmode
3963 check_func_headers stdlib.h getenv
3964
3965 check_func_headers windows.h CoTaskMemFree -lole32
3966 check_func_headers windows.h GetProcessAffinityMask
3967 check_func_headers windows.h GetProcessTimes
3968 check_func_headers windows.h GetSystemTimeAsFileTime
3969 check_func_headers windows.h MapViewOfFile
3970 check_func_headers windows.h SetConsoleTextAttribute
3971 check_func_headers windows.h Sleep
3972 check_func_headers windows.h VirtualAlloc
3973
3974 check_header direct.h
3975 check_header dlfcn.h
3976 check_header dxva.h
3977 check_header dxva2api.h
3978 check_header io.h
3979 check_header mach/mach_time.h
3980 check_header malloc.h
3981 check_header poll.h
3982 check_header sys/mman.h
3983 check_header sys/param.h
3984 check_header sys/resource.h
3985 check_header sys/select.h
3986 check_header sys/time.h
3987 check_header sys/un.h
3988 check_header unistd.h
3989 check_header vdpau/vdpau.h
3990 check_header vdpau/vdpau_x11.h
3991 check_header VideoDecodeAcceleration/VDADecoder.h
3992 check_header windows.h
3993 check_header X11/extensions/XvMClib.h
3994
3995 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3996 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3997 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3998
3999 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4000
4001 if ! disabled w32threads && ! enabled pthreads; then
4002 check_func_headers "windows.h process.h" _beginthreadex &&
4003 enable w32threads || disable w32threads
4004 fi
4005
4006 # check for some common methods of building with pthread support
4007 # do this before the optional library checks as some of them require pthreads
4008 if ! disabled pthreads && ! enabled w32threads; then
4009 enable pthreads
4010 if check_func pthread_join -pthread; then
4011 add_cflags -pthread
4012 add_extralibs -pthread
4013 elif check_func pthread_join -pthreads; then
4014 add_cflags -pthreads
4015 add_extralibs -pthreads
4016 elif check_func pthread_join -lpthreadGC2; then
4017 add_extralibs -lpthreadGC2
4018 elif check_lib pthread.h pthread_join -lpthread; then
4019 :
4020 elif ! check_func pthread_join; then
4021 disable pthreads
4022 fi
4023 fi
4024
4025 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4026 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4027
4028 check_lib math.h sin -lm && LIBM="-lm"
4029 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4030
4031 atan2f_args=2
4032 ldexpf_args=2
4033 powf_args=2
4034
4035 for func in $MATH_FUNCS; do
4036 eval check_mathfunc $func \${${func}_args:-1}
4037 done
4038
4039 # these are off by default, so fail if requested and not available
4040 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
4041 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
4042 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4043 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4044 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4045 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4046 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4047 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4048 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4049 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4050 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4051 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4052 done || die "ERROR: libgsm not found"; }
4053 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4054 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4055 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4056 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4057 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4058 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4059 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4060 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4061 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4062 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4063 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4064 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
4065 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4066 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4067 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4068 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4069 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4070 enabled libvpx && {
4071 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4072 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4073 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
4074 die "ERROR: libvpx encoder version must be >=0.9.6"; }
4075 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4076 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4077 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4078 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4079 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
4080 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4081 die "ERROR: libx264 version must be >= 0.118."; }
4082 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
4083 { check_cpp_condition x265.h "X265_BUILD >= 13" ||
4084 die "ERROR: libx265 version must be >= 13."; }
4085 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4086 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4087 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4088 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4089 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4090 die "ERROR: openssl not found"; }
4091
4092 if enabled gnutls; then
4093 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4094 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4095 fi
4096
4097 # libdc1394 check
4098 if enabled libdc1394; then
4099 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4100 enable libdc1394_2; } ||
4101 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4102 enable libdc1394_1; } ||
4103 die "ERROR: No version of libdc1394 found "
4104 fi
4105
4106 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4107 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4108 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4109 enable sdl
4110 fi
4111
4112 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4113 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4114
4115 check_header linux/fb.h
4116 check_header linux/videodev2.h
4117 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4118
4119 check_header sys/videoio.h
4120
4121 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4122 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4123 # w32api 3.12 had it defined wrong
4124 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4125
4126 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4127 { check_header dev/bktr/ioctl_meteor.h &&
4128 check_header dev/bktr/ioctl_bt848.h; } ||
4129 { check_header machine/ioctl_meteor.h &&
4130 check_header machine/ioctl_bt848.h; } ||
4131 { check_header dev/video/meteor/ioctl_meteor.h &&
4132 check_header dev/video/bktr/ioctl_bt848.h; } ||
4133 check_header dev/ic/bt8xx.h
4134
4135 check_header sndio.h
4136 check_header sys/soundcard.h
4137 check_header soundcard.h
4138
4139 enabled_any alsa_indev alsa_outdev &&
4140 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4141
4142 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4143 check_func jack_port_get_latency_range -ljack
4144
4145 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4146
4147 if enabled libcdio; then
4148 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4149 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4150 fi
4151
4152 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4153
4154 enabled x11grab &&
4155 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4156 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4157 { enabled xlib || die "ERROR: Xlib not found"; }
4158
4159 enabled vdpau &&
4160 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4161 disable vdpau
4162
4163 enabled vdpau && enabled xlib &&
4164 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4165 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4166 enable vdpau_x11
4167
4168 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4169
4170 # add some useful compiler flags if supported
4171 check_cflags -Wdeclaration-after-statement
4172 check_cflags -Wall
4173 check_cflags -Wdisabled-optimization
4174 check_cflags -Wpointer-arith
4175 check_cflags -Wredundant-decls
4176 check_cflags -Wcast-qual
4177 check_cflags -Wwrite-strings
4178 check_cflags -Wtype-limits
4179 check_cflags -Wundef
4180 check_cflags -Wmissing-prototypes
4181 check_cflags -Wstrict-prototypes
4182 enabled extra_warnings && check_cflags -Winline
4183
4184 check_disable_warning(){
4185 warning_flag=-W${1#-Wno-}
4186 test_cflags $warning_flag && add_cflags $1
4187 }
4188
4189 check_disable_warning -Wno-parentheses
4190 check_disable_warning -Wno-switch
4191 check_disable_warning -Wno-format-zero-length
4192 check_disable_warning -Wno-pointer-sign
4193
4194 # add some linker flags
4195 check_ldflags -Wl,--warn-common
4196 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4197 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4198
4199 # add some strip flags
4200 # -wN '..@*' is more selective than -x, but not available everywhere.
4201 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4202
4203 enabled neon_clobber_test &&
4204 check_ldflags -Wl,--wrap,avcodec_open2 \
4205 -Wl,--wrap,avcodec_decode_audio4 \
4206 -Wl,--wrap,avcodec_decode_video2 \
4207 -Wl,--wrap,avcodec_decode_subtitle2 \
4208 -Wl,--wrap,avcodec_encode_audio2 \
4209 -Wl,--wrap,avcodec_encode_video2 \
4210 -Wl,--wrap,avcodec_encode_subtitle \
4211 -Wl,--wrap,avresample_convert ||
4212 disable neon_clobber_test
4213
4214 enabled xmm_clobber_test &&
4215 check_ldflags -Wl,--wrap,avcodec_open2 \
4216 -Wl,--wrap,avcodec_decode_audio4 \
4217 -Wl,--wrap,avcodec_decode_video2 \
4218 -Wl,--wrap,avcodec_decode_subtitle2 \
4219 -Wl,--wrap,avcodec_encode_audio2 \
4220 -Wl,--wrap,avcodec_encode_video2 \
4221 -Wl,--wrap,avcodec_encode_subtitle \
4222 -Wl,--wrap,avresample_convert \
4223 -Wl,--wrap,sws_scale ||
4224 disable xmm_clobber_test
4225
4226 echo "X{};" > $TMPV
4227 if test_ldflags -Wl,--version-script,$TMPV; then
4228 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4229 check_cc <<EOF && enable symver_asm_label
4230 void ff_foo(void) __asm__ ("av_foo@VERSION");
4231 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4232 EOF
4233 check_cc <<EOF && enable symver_gnu_asm
4234 __asm__(".symver ff_foo,av_foo@VERSION");
4235 void ff_foo(void) {}
4236 EOF
4237 fi
4238
4239 if [ -z "$optflags" ]; then
4240 if enabled small; then
4241 optflags=$cflags_size
4242 elif enabled optimizations; then
4243 optflags=$cflags_speed
4244 else
4245 optflags=$cflags_noopt
4246 fi
4247 fi
4248
4249 check_optflags(){
4250 check_cflags "$@"
4251 enabled lto && check_ldflags "$@"
4252 }
4253
4254
4255 if enabled lto; then
4256 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4257 check_cflags -flto
4258 check_ldflags -flto $cpuflags
4259 fi
4260
4261 check_optflags $optflags
4262 check_optflags -fno-math-errno
4263 check_optflags -fno-signed-zeros
4264
4265 if enabled icc; then
4266 # Just warnings, no remarks
4267 check_cflags -w1
4268 # -wd: Disable following warnings
4269 # 144, 167, 556: -Wno-pointer-sign
4270 # 1292: attribute "foo" ignored
4271 # 1419: external declaration in primary source file
4272 # 10006: ignoring unknown option -fno-signed-zeros
4273 # 10148: ignoring unknown option -Wno-parentheses
4274 # 10156: ignoring option '-W'; no argument required
4275 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4276 # 11030: Warning unknown option --as-needed
4277 # 10156: ignoring option '-export'; no argument required
4278 check_ldflags -wd10156,11030
4279 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4280 enable ebp_available
4281 if enabled x86_32; then
4282 icc_version=$($cc -dumpversion)
4283 test ${icc_version%%.*} -ge 11 &&
4284 check_cflags -falign-stack=maintain-16-byte ||
4285 disable aligned_stack
4286 fi
4287 elif enabled ccc; then
4288 # disable some annoying warnings
4289 add_cflags -msg_disable bitnotint
4290 add_cflags -msg_disable mixfuncvoid
4291 add_cflags -msg_disable nonstandcast
4292 add_cflags -msg_disable unsupieee
4293 elif enabled gcc; then
4294 check_optflags -fno-tree-vectorize
4295 check_cflags -Werror=implicit-function-declaration
4296 check_cflags -Werror=missing-prototypes
4297 check_cflags -Werror=return-type
4298 check_cflags -Werror=declaration-after-statement
4299 check_cflags -Werror=vla
4300 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4301 elif enabled llvm_gcc; then
4302 check_cflags -mllvm -stack-alignment=16
4303 elif enabled clang; then
4304 check_cflags -mllvm -stack-alignment=16
4305 check_cflags -Qunused-arguments
4306 check_cflags -Werror=implicit-function-declaration
4307 check_cflags -Werror=missing-prototypes
4308 check_cflags -Werror=return-type
4309 elif enabled cparser; then
4310 add_cflags -Wno-missing-variable-declarations
4311 add_cflags -Wno-empty-statement
4312 elif enabled armcc; then
4313 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4314 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4315 # 2523: use of inline assembler is deprecated
4316 add_cflags -W${armcc_opt},--diag_suppress=2523
4317 add_cflags -W${armcc_opt},--diag_suppress=1207
4318 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4319 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4320 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4321 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4322 elif enabled tms470; then
4323 add_cflags -pds=824 -pds=837
4324 disable inline_asm
4325 elif enabled pathscale; then
4326 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4327 elif enabled_any msvc icl; then
4328 enabled x86_32 && disable aligned_stack
4329 enabled_all x86_32 debug && add_cflags -Oy-
4330 enabled debug && add_ldflags -debug
4331 enable pragma_deprecated
4332 if enabled icl; then
4333 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4334 # (correctly) on icl 13.x.
4335 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4336 add_cflags -Qansi-alias
4337 # icl will pass the inline asm tests but inline asm is currently
4338 # not supported (build will fail)
4339 disable inline_asm
4340 fi
4341 fi
4342
4343 case $as_type in
4344 clang)
4345 add_asflags -Qunused-arguments
4346 ;;
4347 esac
4348
4349 case $ld_type in
4350 clang)
4351 check_ldflags -Qunused-arguments
4352 ;;
4353 esac
4354
4355 case $target_os in
4356 osf1)
4357 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4358 ;;
4359 plan9)
4360 add_cppflags -Dmain=plan9_main
4361 ;;
4362 esac
4363
4364 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4365
4366 check_deps $CONFIG_LIST \
4367 $CONFIG_EXTRA \
4368 $HAVE_LIST \
4369 $ALL_COMPONENTS \
4370
4371 enabled_all dxva2 CoTaskMemFree &&
4372 prepend avconv_libs $($ldflags_filter "-lole32") &&
4373 enable dxva2_lib
4374
4375 ! enabled_any memalign posix_memalign aligned_malloc &&
4376 enabled_any $need_memalign && enable memalign_hack
4377