configure: Make the new srtp protocol depend on the rtp protocol
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --libdir=DIR install libs in DIR [PREFIX/lib]
85 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
86 --incdir=DIR install includes in DIR [PREFIX/include]
87 --mandir=DIR install man page in DIR [PREFIX/share/man]
88
89 Licensing options:
90 --enable-gpl allow use of GPL code, the resulting libs
91 and binaries will be under GPL [no]
92 --enable-version3 upgrade (L)GPL to version 3 [no]
93 --enable-nonfree allow use of nonfree code, the resulting libs
94 and binaries will be unredistributable [no]
95
96 Configuration options:
97 --disable-static do not build static libraries [no]
98 --enable-shared build shared libraries [no]
99 --enable-small optimize for size instead of speed
100 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
101 --enable-gray enable full grayscale support (slower color)
102 --disable-swscale-alpha disable alpha channel support in swscale
103 --disable-all disable building components, libraries and programs
104
105 Program options:
106 --disable-programs do not build command line programs
107 --disable-avconv disable avconv build
108 --disable-avplay disable avplay build
109 --disable-avprobe disable avprobe build
110 --disable-avserver disable avserver build
111
112 Component options:
113 --disable-doc do not build documentation
114 --disable-avdevice disable libavdevice build
115 --disable-avcodec disable libavcodec build
116 --disable-avformat disable libavformat build
117 --disable-avutil disable libavutil build
118 --disable-swscale disable libswscale build
119 --disable-avfilter disable video filter support [no]
120 --disable-avresample disable libavresample build [no]
121 --disable-pthreads disable pthreads [auto]
122 --disable-w32threads disable Win32 threads [auto]
123 --enable-x11grab enable X11 grabbing [no]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-lsp disable LSP code
127 --disable-lzo disable LZO decoder code
128 --disable-mdct disable MDCT code
129 --disable-rdft disable RDFT code
130 --disable-fft disable FFT code
131 --enable-dxva2 enable DXVA2 code
132 --enable-vaapi enable VAAPI code
133 --enable-vda enable VDA code
134 --enable-vdpau enable VDPAU code
135
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --enable-outdev=NAME enable output device NAME
166 --disable-outdev=NAME disable output device NAME
167 --disable-outdevs disable output devices
168 --disable-devices disable all devices
169 --enable-filter=NAME enable filter NAME
170 --disable-filter=NAME disable filter NAME
171 --disable-filters disable all filters
172
173 External library support:
174 --enable-avisynth enable reading of AVISynth script files [no]
175 --enable-bzlib enable bzlib [autodetect]
176 --enable-frei0r enable frei0r video filtering
177 --enable-gnutls enable gnutls [no]
178 --enable-libcdio enable audio CD grabbing with libcdio
179 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
180 and libraw1394 [no]
181 --enable-libfaac enable AAC encoding via libfaac [no]
182 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
183 --enable-libfreetype enable libfreetype [no]
184 --enable-libgsm enable GSM de/encoding via libgsm [no]
185 --enable-libilbc enable iLBC de/encoding via libilbc [no]
186 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
187 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
188 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
189 --enable-libopencv enable video filtering via libopencv [no]
190 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
191 --enable-libopus enable Opus decoding via libopus [no]
192 --enable-libpulse enable Pulseaudio input via libpulse [no]
193 --enable-librtmp enable RTMP[E] support via librtmp [no]
194 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
195 --enable-libspeex enable Speex de/encoding via libspeex [no]
196 --enable-libtheora enable Theora encoding via libtheora [no]
197 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
198 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
199 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
200 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
201 --enable-libx264 enable H.264 encoding via x264 [no]
202 --enable-libxavs enable AVS encoding via xavs [no]
203 --enable-libxvid enable Xvid encoding via xvidcore,
204 native MPEG-4/Xvid encoder exists [no]
205 --enable-openssl enable openssl [no]
206 --enable-zlib enable zlib [autodetect]
207
208 Advanced options (experts only):
209 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
210 --enable-cross-compile assume a cross-compiler is used
211 --sysroot=PATH root of cross-build tree
212 --sysinclude=PATH location of cross-build system headers
213 --target-os=OS compiler targets OS [$target_os]
214 --target-exec=CMD command to run executables on target
215 --target-path=DIR path to view of build directory on target
216 --toolchain=NAME set tool defaults according to NAME
217 --nm=NM use nm tool
218 --ar=AR use archive tool AR [$ar_default]
219 --as=AS use assembler AS [$as_default]
220 --cc=CC use C compiler CC [$cc_default]
221 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
222 --ld=LD use linker LD
223 --host-cc=HOSTCC use host C compiler HOSTCC
224 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
225 --host-ld=HOSTLD use host linker HOSTLD
226 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
227 --host-libs=HLIBS use libs HLIBS when linking for host
228 --host-os=OS compiler host OS [$target_os]
229 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
230 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
231 --extra-libs=ELIBS add ELIBS [$ELIBS]
232 --extra-version=STRING version string suffix []
233 --optflags=OPTFLAGS override optimization-related compiler flags
234 --build-suffix=SUFFIX library name suffix []
235 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
236 --arch=ARCH select architecture [$arch]
237 --cpu=CPU select the minimum required CPU (affects
238 instruction selection, may crash on older CPUs)
239 --enable-pic build position-independent code
240 --enable-sram allow use of on-chip SRAM
241 --enable-thumb compile for Thumb instruction set
242 --disable-symver disable symbol versioning
243 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
244 --disable-safe-bitstream-reader
245 disable buffer boundary checking in bitreaders
246 (faster, but may crash)
247 --enable-memalign-hack emulate memalign, interferes with memory debuggers
248 --enable-lto use link-time optimization
249
250 Optimization options (experts only):
251 --disable-asm disable all assembler optimizations
252 --disable-altivec disable AltiVec optimizations
253 --disable-amd3dnow disable 3DNow! optimizations
254 --disable-amd3dnowext disable 3DNow! extended optimizations
255 --disable-mmx disable MMX optimizations
256 --disable-mmxext disable MMXEXT optimizations
257 --disable-sse disable SSE optimizations
258 --disable-sse2 disable SSE2 optimizations
259 --disable-sse3 disable SSE3 optimizations
260 --disable-ssse3 disable SSSE3 optimizations
261 --disable-sse4 disable SSE4 optimizations
262 --disable-sse42 disable SSE4.2 optimizations
263 --disable-avx disable AVX optimizations
264 --disable-fma4 disable FMA4 optimizations
265 --disable-armv5te disable armv5te optimizations
266 --disable-armv6 disable armv6 optimizations
267 --disable-armv6t2 disable armv6t2 optimizations
268 --disable-vfp disable VFP optimizations
269 --disable-neon disable NEON optimizations
270 --disable-vis disable VIS optimizations
271 --disable-inline-asm disable use of inline assembler
272 --disable-yasm disable use of yasm assembler
273
274 Developer options (useful when working on Libav itself):
275 --disable-debug disable debugging symbols
276 --enable-debug=LEVEL set the debug level [$debuglevel]
277 --disable-optimizations disable compiler optimizations
278 --enable-extra-warnings enable more compiler warnings
279 --samples=PATH location of test samples for FATE, if not set use
280 \$LIBAV_SAMPLES at make invocation time.
281 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
282 should be used only for debugging purposes)
283 --enable-random randomly enable/disable components
284 --disable-random
285 --enable-random=LIST randomly enable/disable specific components or
286 --disable-random=LIST component groups. LIST is a comma-separated list
287 of NAME[:PROB] entries where NAME is a component
288 (group) and PROB the probability associated with
289 NAME (default 0.5).
290 --random-seed=VALUE seed value for --enable/disable-random
291
292 NOTE: Object files are built at the place where configure is launched.
293 EOF
294 exit 0
295 }
296
297 quotes='""'
298
299 log(){
300 echo "$@" >> $logfile
301 }
302
303 log_file(){
304 log BEGIN $1
305 pr -n -t $1 >> $logfile
306 log END $1
307 }
308
309 echolog(){
310 log "$@"
311 echo "$@"
312 }
313
314 warn(){
315 log "WARNING: $*"
316 WARNINGS="${WARNINGS}WARNING: $*\n"
317 }
318
319 die(){
320 echolog "$@"
321 cat <<EOF
322
323 If you think configure made a mistake, make sure you are using the latest
324 version from Git. If the latest version fails, report the problem to the
325 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
326 EOF
327 if disabled logging; then
328 cat <<EOF
329 Rerun configure with logging enabled (do not use --disable-logging), and
330 include the log this produces with your report.
331 EOF
332 else
333 cat <<EOF
334 Include the log file "$logfile" produced by configure as this will help
335 solving the problem.
336 EOF
337 fi
338 exit 1
339 }
340
341 # Avoid locale weirdness, besides we really just want to translate ASCII.
342 toupper(){
343 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
344 }
345
346 tolower(){
347 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
348 }
349
350 c_escape(){
351 echo "$*" | sed 's/["\\]/\\\0/g'
352 }
353
354 sh_quote(){
355 v=$(echo "$1" | sed "s/'/'\\\\''/g")
356 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
357 echo "$v"
358 }
359
360 cleanws(){
361 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
362 }
363
364 filter(){
365 pat=$1
366 shift
367 for v; do
368 eval "case $v in $pat) echo $v ;; esac"
369 done
370 }
371
372 filter_out(){
373 pat=$1
374 shift
375 for v; do
376 eval "case $v in $pat) ;; *) echo $v ;; esac"
377 done
378 }
379
380 map(){
381 m=$1
382 shift
383 for v; do eval $m; done
384 }
385
386 add_suffix(){
387 suffix=$1
388 shift
389 for v; do echo ${v}${suffix}; done
390 }
391
392 set_all(){
393 value=$1
394 shift
395 for var in $*; do
396 eval $var=$value
397 done
398 }
399
400 set_weak(){
401 value=$1
402 shift
403 for var; do
404 eval : \${$var:=$value}
405 done
406 }
407
408 set_safe(){
409 var=$1
410 shift
411 eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
412 }
413
414 get_safe(){
415 eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
416 }
417
418 pushvar(){
419 for var in $*; do
420 eval level=\${${var}_level:=0}
421 eval ${var}_${level}="\$$var"
422 eval ${var}_level=$(($level+1))
423 done
424 }
425
426 popvar(){
427 for var in $*; do
428 eval level=\${${var}_level:-0}
429 test $level = 0 && continue
430 eval level=$(($level-1))
431 eval $var="\${${var}_${level}}"
432 eval ${var}_level=$level
433 eval unset ${var}_${level}
434 done
435 }
436
437 enable(){
438 set_all yes $*
439 }
440
441 disable(){
442 set_all no $*
443 }
444
445 enable_weak(){
446 set_weak yes $*
447 }
448
449 disable_weak(){
450 set_weak no $*
451 }
452
453 enable_safe(){
454 for var; do
455 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
456 done
457 }
458
459 disable_safe(){
460 for var; do
461 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
462 done
463 }
464
465 do_enable_deep(){
466 for var; do
467 enabled $var && continue
468 eval sel="\$${var}_select"
469 eval sgs="\$${var}_suggest"
470 pushvar var sgs
471 enable_deep $sel
472 popvar sgs
473 enable_deep_weak $sgs
474 popvar var
475 done
476 }
477
478 enable_deep(){
479 do_enable_deep $*
480 enable $*
481 }
482
483 enable_deep_weak(){
484 do_enable_deep $*
485 enable_weak $*
486 }
487
488 enabled(){
489 test "${1#!}" = "$1" && op== || op=!=
490 eval test "x\$${1#!}" $op "xyes"
491 }
492
493 disabled(){
494 test "${1#!}" = "$1" && op== || op=!=
495 eval test "x\$${1#!}" $op "xno"
496 }
497
498 enabled_all(){
499 for opt; do
500 enabled $opt || return 1
501 done
502 }
503
504 disabled_all(){
505 for opt; do
506 disabled $opt || return 1
507 done
508 }
509
510 enabled_any(){
511 for opt; do
512 enabled $opt && return 0
513 done
514 }
515
516 disabled_any(){
517 for opt; do
518 disabled $opt && return 0
519 done
520 return 1
521 }
522
523 set_default(){
524 for opt; do
525 eval : \${$opt:=\$${opt}_default}
526 done
527 }
528
529 is_in(){
530 value=$1
531 shift
532 for var in $*; do
533 [ $var = $value ] && return 0
534 done
535 return 1
536 }
537
538 do_check_deps(){
539 for cfg; do
540 cfg="${cfg#!}"
541 enabled ${cfg}_checking && die "Circular dependency for $cfg."
542 disabled ${cfg}_checking && continue
543 enable ${cfg}_checking
544 append allopts $cfg
545
546 eval dep_all="\$${cfg}_deps"
547 eval dep_any="\$${cfg}_deps_any"
548 eval dep_sel="\$${cfg}_select"
549 eval dep_sgs="\$${cfg}_suggest"
550 eval dep_ifa="\$${cfg}_if"
551 eval dep_ifn="\$${cfg}_if_any"
552
553 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
554 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
555 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
556
557 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
558 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
559 enabled_all $dep_all || disable $cfg
560 enabled_any $dep_any || disable $cfg
561 disabled_any $dep_sel && disable $cfg
562
563 if enabled $cfg; then
564 enable_deep $dep_sel
565 enable_deep_weak $dep_sgs
566 fi
567
568 disable ${cfg}_checking
569 done
570 }
571
572 check_deps(){
573 unset allopts
574
575 do_check_deps "$@"
576
577 for cfg in $allopts; do
578 enabled $cfg || continue
579 eval dep_extralibs="\$${cfg}_extralibs"
580 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
581 done
582 }
583
584 print_config(){
585 pfx=$1
586 files=$2
587 shift 2
588 map 'eval echo "$v \${$v:-no}"' "$@" |
589 awk "BEGIN { split(\"$files\", files) }
590 {
591 c = \"$pfx\" toupper(\$1);
592 v = \$2;
593 sub(/yes/, 1, v);
594 sub(/no/, 0, v);
595 for (f in files) {
596 file = files[f];
597 if (file ~ /\\.h\$/) {
598 printf(\"#define %s %d\\n\", c, v) >>file;
599 } else if (file ~ /\\.asm\$/) {
600 printf(\"%%define %s %d\\n\", c, v) >>file;
601 } else if (file ~ /\\.mak\$/) {
602 n = -v ? \"\" : \"!\";
603 printf(\"%s%s=yes\\n\", n, c) >>file;
604 }
605 }
606 }"
607 }
608
609 print_enabled(){
610 suf=$1
611 shift
612 for v; do
613 enabled $v && printf "%s\n" ${v%$suf};
614 done
615 }
616
617 append(){
618 var=$1
619 shift
620 eval "$var=\"\$$var $*\""
621 }
622
623 prepend(){
624 var=$1
625 shift
626 eval "$var=\"$* \$$var\""
627 }
628
629 add_cppflags(){
630 append CPPFLAGS "$@"
631 }
632
633 add_cflags(){
634 append CFLAGS $($cflags_filter "$@")
635 }
636
637 add_asflags(){
638 append ASFLAGS $($asflags_filter "$@")
639 }
640
641 add_ldflags(){
642 append LDFLAGS $($ldflags_filter "$@")
643 }
644
645 add_extralibs(){
646 prepend extralibs $($ldflags_filter "$@")
647 }
648
649 add_host_cflags(){
650 append host_cflags $($host_cflags_filter "$@")
651 }
652
653 add_host_ldflags(){
654 append host_ldflags $($host_ldflags_filter "$@")
655 }
656
657 add_compat(){
658 append compat_objs $1
659 shift
660 map 'add_cppflags -D$v' "$@"
661 }
662
663 check_cmd(){
664 log "$@"
665 "$@" >> $logfile 2>&1
666 }
667
668 cc_o(){
669 eval printf '%s\\n' $CC_O
670 }
671
672 cc_e(){
673 eval printf '%s\\n' $CC_E
674 }
675
676 check_cc(){
677 log check_cc "$@"
678 cat > $TMPC
679 log_file $TMPC
680 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
681 }
682
683 check_cpp(){
684 log check_cpp "$@"
685 cat > $TMPC
686 log_file $TMPC
687 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
688 }
689
690 as_o(){
691 eval printf '%s\\n' $AS_O
692 }
693
694 check_as(){
695 log check_as "$@"
696 cat > $TMPS
697 log_file $TMPS
698 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
699 }
700
701 check_inline_asm(){
702 log check_inline_asm "$@"
703 name="$1"
704 code="$2"
705 shift 2
706 disable $name
707 check_cc "$@" <<EOF && enable $name
708 void foo(void){ __asm__ volatile($code); }
709 EOF
710 }
711
712 check_insn(){
713 log check_insn "$@"
714 check_inline_asm ${1}_inline "\"$2\""
715 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
716 }
717
718 check_yasm(){
719 log check_yasm "$@"
720 echo "$1" > $TMPS
721 log_file $TMPS
722 shift 1
723 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
724 }
725
726 ld_o(){
727 eval printf '%s\\n' $LD_O
728 }
729
730 check_ld(){
731 log check_ld "$@"
732 flags=$(filter_out '-l*' "$@")
733 libs=$(filter '-l*' "$@")
734 check_cc $($cflags_filter $flags) || return
735 flags=$($ldflags_filter $flags)
736 libs=$($ldflags_filter $libs)
737 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
738 }
739
740 check_code(){
741 log check_code "$@"
742 check=$1
743 headers=$2
744 code=$3
745 shift 3
746 {
747 for hdr in $headers; do
748 echo "#include <$hdr>"
749 done
750 echo "int main(void) { $code; return 0; }"
751 } | check_$check "$@"
752 }
753
754 check_cppflags(){
755 log check_cppflags "$@"
756 check_cc "$@" <<EOF && append CPPFLAGS "$@"
757 int x;
758 EOF
759 }
760
761 check_cflags(){
762 log check_cflags "$@"
763 set -- $($cflags_filter "$@")
764 check_cc "$@" <<EOF && append CFLAGS "$@"
765 int x;
766 EOF
767 }
768
769 test_ldflags(){
770 log test_ldflags "$@"
771 check_ld "$@" <<EOF
772 int main(void){ return 0; }
773 EOF
774 }
775
776 check_ldflags(){
777 log check_ldflags "$@"
778 test_ldflags "$@" && add_ldflags "$@"
779 }
780
781 check_header(){
782 log check_header "$@"
783 header=$1
784 shift
785 disable_safe $header
786 check_cpp "$@" <<EOF && enable_safe $header
787 #include <$header>
788 int x;
789 EOF
790 }
791
792 check_func(){
793 log check_func "$@"
794 func=$1
795 shift
796 disable $func
797 check_ld "$@" <<EOF && enable $func
798 extern int $func();
799 int main(void){ $func(); }
800 EOF
801 }
802
803 check_mathfunc(){
804 log check_mathfunc "$@"
805 func=$1
806 narg=$2
807 shift 2
808 test $narg = 2 && args="f, g" || args="f"
809 disable $func
810 check_ld "$@" <<EOF && enable $func
811 #include <math.h>
812 float foo(float f, float g) { return $func($args); }
813 int main(void){ return 0; }
814 EOF
815 }
816
817 check_func_headers(){
818 log check_func_headers "$@"
819 headers=$1
820 funcs=$2
821 shift 2
822 {
823 for hdr in $headers; do
824 echo "#include <$hdr>"
825 done
826 for func in $funcs; do
827 echo "long check_$func(void) { return (long) $func; }"
828 done
829 echo "int main(void) { return 0; }"
830 } | check_ld "$@" && enable $funcs && enable_safe $headers
831 }
832
833 check_cpp_condition(){
834 log check_cpp_condition "$@"
835 header=$1
836 condition=$2
837 shift 2
838 check_cpp "$@" <<EOF
839 #include <$header>
840 #if !($condition)
841 #error "unsatisfied condition: $condition"
842 #endif
843 EOF
844 }
845
846 check_lib(){
847 log check_lib "$@"
848 header="$1"
849 func="$2"
850 shift 2
851 check_header $header && check_func $func "$@" && add_extralibs "$@"
852 }
853
854 check_lib2(){
855 log check_lib2 "$@"
856 headers="$1"
857 funcs="$2"
858 shift 2
859 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
860 }
861
862 check_pkg_config(){
863 log check_pkg_config "$@"
864 pkg="$1"
865 headers="$2"
866 funcs="$3"
867 shift 3
868 $pkg_config --exists $pkg || return
869 pkg_cflags=$($pkg_config --cflags $pkg)
870 pkg_libs=$($pkg_config --libs $pkg)
871 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
872 set_safe ${pkg}_cflags $pkg_cflags &&
873 set_safe ${pkg}_libs $pkg_libs
874 }
875
876 check_exec(){
877 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
878 }
879
880 check_exec_crash(){
881 code=$(cat)
882
883 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
884 # are safe but may not be available everywhere. Thus we use
885 # raise(SIGTERM) instead. The check is run in a subshell so we
886 # can redirect the "Terminated" message from the shell. SIGBUS
887 # is not defined by standard C so it is used conditionally.
888
889 (check_exec "$@") >> $logfile 2>&1 <<EOF
890 #include <signal.h>
891 static void sighandler(int sig){
892 raise(SIGTERM);
893 }
894 int foo(void){
895 $code
896 }
897 int main(void){
898 signal(SIGILL, sighandler);
899 signal(SIGFPE, sighandler);
900 signal(SIGSEGV, sighandler);
901 #ifdef SIGBUS
902 signal(SIGBUS, sighandler);
903 #endif
904 foo();
905 }
906 EOF
907 }
908
909 check_type(){
910 log check_type "$@"
911 headers=$1
912 type=$2
913 shift 2
914 disable_safe "$type"
915 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
916 }
917
918 check_struct(){
919 log check_type "$@"
920 headers=$1
921 struct=$2
922 member=$3
923 shift 3
924 disable_safe "${struct}_${member}"
925 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
926 enable_safe "${struct}_${member}"
927 }
928
929 require(){
930 name="$1"
931 header="$2"
932 func="$3"
933 shift 3
934 check_lib $header $func "$@" || die "ERROR: $name not found"
935 }
936
937 require2(){
938 name="$1"
939 headers="$2"
940 func="$3"
941 shift 3
942 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
943 }
944
945 require_pkg_config(){
946 pkg="$1"
947 check_pkg_config "$@" || die "ERROR: $pkg not found"
948 add_cflags $(get_safe ${pkg}_cflags)
949 add_extralibs $(get_safe ${pkg}_libs)
950 }
951
952 hostcc_o(){
953 eval printf '%s\\n' $HOSTCC_O
954 }
955
956 check_host_cc(){
957 log check_host_cc "$@"
958 cat > $TMPC
959 log_file $TMPC
960 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
961 }
962
963 check_host_cflags(){
964 log check_host_cflags "$@"
965 set -- $($host_cflags_filter "$@")
966 check_host_cc "$@" <<EOF && append host_cflags "$@"
967 int x;
968 EOF
969 }
970
971 apply(){
972 file=$1
973 shift
974 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
975 }
976
977 cp_if_changed(){
978 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
979 mkdir -p "$(dirname $2)"
980 $cp_f "$1" "$2"
981 }
982
983 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
984 # system-dependent things.
985
986 COMPONENT_LIST="
987 bsfs
988 decoders
989 demuxers
990 encoders
991 filters
992 hwaccels
993 indevs
994 muxers
995 outdevs
996 parsers
997 protocols
998 "
999
1000 LIBRARY_LIST="
1001 avcodec
1002 avdevice
1003 avfilter
1004 avformat
1005 avresample
1006 avutil
1007 swscale
1008 "
1009
1010 PROGRAM_LIST="
1011 avconv
1012 avplay
1013 avprobe
1014 avserver
1015 "
1016
1017 CONFIG_LIST="
1018 $COMPONENT_LIST
1019 $LIBRARY_LIST
1020 $PROGRAM_LIST
1021 avisynth
1022 bzlib
1023 dct
1024 doc
1025 dxva2
1026 fft
1027 frei0r
1028 gnutls
1029 gpl
1030 gray
1031 hardcoded_tables
1032 libcdio
1033 libdc1394
1034 libfaac
1035 libfdk_aac
1036 libfreetype
1037 libgsm
1038 libilbc
1039 libmp3lame
1040 libopencore_amrnb
1041 libopencore_amrwb
1042 libopencv
1043 libopenjpeg
1044 libopus
1045 libpulse
1046 librtmp
1047 libschroedinger
1048 libspeex
1049 libtheora
1050 libvo_aacenc
1051 libvo_amrwbenc
1052 libvorbis
1053 libvpx
1054 libx264
1055 libxavs
1056 libxvid
1057 lsp
1058 lzo
1059 mdct
1060 memalign_hack
1061 network
1062 nonfree
1063 openssl
1064 pic
1065 rdft
1066 runtime_cpudetect
1067 safe_bitstream_reader
1068 shared
1069 small
1070 sram
1071 static
1072 swscale_alpha
1073 thumb
1074 vaapi
1075 vda
1076 vdpau
1077 version3
1078 xmm_clobber_test
1079 x11grab
1080 zlib
1081 "
1082
1083 THREADS_LIST='
1084 pthreads
1085 w32threads
1086 '
1087
1088 ARCH_LIST='
1089 aarch64
1090 alpha
1091 arm
1092 avr32
1093 avr32_ap
1094 avr32_uc
1095 bfin
1096 ia64
1097 m68k
1098 mips
1099 mips64
1100 parisc
1101 ppc
1102 ppc64
1103 s390
1104 sh4
1105 sparc
1106 sparc64
1107 tilegx
1108 tilepro
1109 tomi
1110 x86
1111 x86_32
1112 x86_64
1113 '
1114
1115 ARCH_EXT_LIST_ARM='
1116 armv5te
1117 armv6
1118 armv6t2
1119 neon
1120 vfp
1121 vfpv3
1122 '
1123
1124 ARCH_EXT_LIST_X86='
1125 amd3dnow
1126 amd3dnowext
1127 avx
1128 fma4
1129 mmx
1130 mmxext
1131 sse
1132 sse2
1133 sse3
1134 sse4
1135 sse42
1136 ssse3
1137 '
1138
1139 ARCH_EXT_LIST="
1140 $ARCH_EXT_LIST_ARM
1141 $ARCH_EXT_LIST_X86
1142 altivec
1143 ppc4xx
1144 vis
1145 "
1146
1147 HAVE_LIST_CMDLINE='
1148 inline_asm
1149 symver
1150 yasm
1151 '
1152
1153 HAVE_LIST_PUB='
1154 bigendian
1155 fast_unaligned
1156 '
1157
1158 MATH_FUNCS="
1159 atanf
1160 atan2f
1161 cbrtf
1162 cosf
1163 exp2
1164 exp2f
1165 expf
1166 isinf
1167 isnan
1168 ldexpf
1169 llrint
1170 llrintf
1171 log2
1172 log2f
1173 log10f
1174 lrint
1175 lrintf
1176 powf
1177 rint
1178 round
1179 roundf
1180 sinf
1181 trunc
1182 truncf
1183 "
1184
1185 HAVE_LIST="
1186 $ARCH_EXT_LIST
1187 $(add_suffix _external $ARCH_EXT_LIST)
1188 $(add_suffix _inline $ARCH_EXT_LIST)
1189 $HAVE_LIST_CMDLINE
1190 $HAVE_LIST_PUB
1191 $THREADS_LIST
1192 $MATH_FUNCS
1193 aligned_malloc
1194 aligned_stack
1195 alsa_asoundlib_h
1196 altivec_h
1197 arpa_inet_h
1198 asm_mod_q
1199 asm_mod_y
1200 attribute_may_alias
1201 attribute_packed
1202 closesocket
1203 cmov
1204 CommandLineToArgvW
1205 cpunop
1206 CryptGenRandom
1207 dcbzl
1208 dev_bktr_ioctl_bt848_h
1209 dev_bktr_ioctl_meteor_h
1210 dev_ic_bt8xx_h
1211 dev_video_bktr_ioctl_bt848_h
1212 dev_video_meteor_ioctl_meteor_h
1213 direct_h
1214 dlfcn_h
1215 dlopen
1216 dos_paths
1217 dxva_h
1218 ebp_available
1219 ebx_available
1220 fast_64bit
1221 fast_clz
1222 fast_cmov
1223 fcntl
1224 fork
1225 getaddrinfo
1226 gethrtime
1227 getopt
1228 GetProcessAffinityMask
1229 GetProcessMemoryInfo
1230 GetProcessTimes
1231 GetSystemTimeAsFileTime
1232 getrusage
1233 getservbyport
1234 gettimeofday
1235 gnu_as
1236 ibm_asm
1237 inet_aton
1238 io_h
1239 isatty
1240 jack_port_get_latency_range
1241 ldbrx
1242 libdc1394_1
1243 libdc1394_2
1244 local_aligned_16
1245 local_aligned_8
1246 localtime_r
1247 loongson
1248 machine_ioctl_bt848_h
1249 machine_ioctl_meteor_h
1250 malloc_h
1251 MapViewOfFile
1252 memalign
1253 mkstemp
1254 mm_empty
1255 mmap
1256 mprotect
1257 msvcrt
1258 nanosleep
1259 poll_h
1260 posix_memalign
1261 rdtsc
1262 sched_getaffinity
1263 sdl
1264 sdl_video_size
1265 SetConsoleTextAttribute
1266 setmode
1267 setrlimit
1268 Sleep
1269 sndio_h
1270 socklen_t
1271 soundcard_h
1272 strerror_r
1273 strptime
1274 strtok_r
1275 struct_addrinfo
1276 struct_group_source_req
1277 struct_ip_mreq_source
1278 struct_ipv6_mreq
1279 struct_pollfd
1280 struct_rusage_ru_maxrss
1281 struct_sockaddr_in6
1282 struct_sockaddr_sa_len
1283 struct_sockaddr_storage
1284 struct_v4l2_frmivalenum_discrete
1285 symver_asm_label
1286 symver_gnu_asm
1287 sysconf
1288 sysctl
1289 sys_mman_h
1290 sys_param_h
1291 sys_resource_h
1292 sys_select_h
1293 sys_soundcard_h
1294 sys_time_h
1295 sys_videoio_h
1296 threads
1297 unistd_h
1298 usleep
1299 vfp_args
1300 VirtualAlloc
1301 windows_h
1302 winsock2_h
1303 xform_asm
1304 xmm_clobbers
1305 "
1306
1307 # options emitted with CONFIG_ prefix but not available on the command line
1308 CONFIG_EXTRA="
1309 aandcttables
1310 ac3dsp
1311 error_resilience
1312 gcrypt
1313 golomb
1314 gplv3
1315 h264chroma
1316 h264dsp
1317 h264pred
1318 h264qpel
1319 huffman
1320 lgplv3
1321 lpc
1322 mpegaudio
1323 mpegaudiodsp
1324 mpegvideo
1325 mpegvideoenc
1326 nettle
1327 rangecoder
1328 rtpdec
1329 rtpenc_chain
1330 sinewin
1331 videodsp
1332 vp3dsp
1333 "
1334
1335 CMDLINE_SELECT="
1336 $ARCH_EXT_LIST
1337 $CONFIG_LIST
1338 $HAVE_LIST_CMDLINE
1339 $THREADS_LIST
1340 asm
1341 cross_compile
1342 debug
1343 extra_warnings
1344 logging
1345 lto
1346 optimizations
1347 "
1348
1349 PATHS_LIST='
1350 bindir
1351 datadir
1352 incdir
1353 libdir
1354 mandir
1355 prefix
1356 shlibdir
1357 '
1358
1359 CMDLINE_SET="
1360 $PATHS_LIST
1361 ar
1362 arch
1363 as
1364 build_suffix
1365 cc
1366 cpu
1367 cross_prefix
1368 dep_cc
1369 extra_version
1370 host_cc
1371 host_cflags
1372 host_ld
1373 host_ldflags
1374 host_libs
1375 host_os
1376 ld
1377 logfile
1378 malloc_prefix
1379 nm
1380 optflags
1381 pkg_config
1382 random_seed
1383 samples
1384 sysinclude
1385 sysroot
1386 target_exec
1387 target_os
1388 target_path
1389 toolchain
1390 "
1391
1392 CMDLINE_APPEND="
1393 extra_cflags
1394 "
1395
1396 # code dependency declarations
1397
1398 # architecture extensions
1399
1400 armv5te_deps="arm"
1401 armv6_deps="arm"
1402 armv6t2_deps="arm"
1403 neon_deps="arm"
1404 vfp_deps="arm"
1405 vfpv3_deps="vfp"
1406
1407 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1408
1409 altivec_deps="ppc"
1410 ppc4xx_deps="ppc"
1411
1412 vis_deps="sparc"
1413
1414 x86_64_suggest="cmov fast_cmov"
1415
1416 amd3dnow_deps="mmx"
1417 amd3dnowext_deps="amd3dnow"
1418 mmx_deps="x86"
1419 mmxext_deps="mmx"
1420 sse_deps="mmxext"
1421 sse2_deps="sse"
1422 sse3_deps="sse2"
1423 ssse3_deps="sse3"
1424 sse4_deps="ssse3"
1425 sse42_deps="sse4"
1426 avx_deps="sse42"
1427 fma4_deps="avx"
1428
1429 mmx_external_deps="yasm"
1430 mmx_inline_deps="inline_asm"
1431 mmx_suggest="mmx_external mmx_inline"
1432
1433 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1434 eval dep=\$${ext}_deps
1435 eval ${ext}_external_deps='"${dep}_external"'
1436 eval ${ext}_inline_deps='"${dep}_inline"'
1437 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1438 done
1439
1440 aligned_stack_if_any="ppc x86"
1441 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1442 fast_clz_if_any="alpha avr32 mips ppc x86"
1443 fast_unaligned_if_any="ppc x86"
1444
1445 inline_asm_deps="!tms470"
1446 need_memalign="altivec neon sse"
1447
1448 symver_if_any="symver_asm_label symver_gnu_asm"
1449
1450 log2_deps="!msvcrt"
1451
1452 # subsystems
1453 dct_select="rdft"
1454 mdct_select="fft"
1455 rdft_select="fft"
1456 mpegaudio_select="mpegaudiodsp"
1457 mpegaudiodsp_select="dct"
1458 mpegvideo_select="videodsp"
1459 mpegvideoenc_select="mpegvideo"
1460
1461 # decoders / encoders
1462 aac_decoder_select="mdct sinewin"
1463 aac_encoder_select="mdct sinewin"
1464 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1465 ac3_decoder_select="mdct ac3dsp ac3_parser"
1466 ac3_encoder_select="mdct ac3dsp"
1467 ac3_fixed_encoder_select="mdct ac3dsp"
1468 alac_encoder_select="lpc"
1469 amrnb_decoder_select="lsp"
1470 amrwb_decoder_select="lsp"
1471 atrac1_decoder_select="mdct sinewin"
1472 atrac3_decoder_select="mdct"
1473 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1474 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1475 cavs_decoder_select="golomb mpegvideo"
1476 comfortnoise_encoder_select="lpc"
1477 cook_decoder_select="mdct sinewin"
1478 cscd_decoder_select="lzo"
1479 cscd_decoder_suggest="zlib"
1480 dca_decoder_select="mdct"
1481 dnxhd_encoder_select="aandcttables mpegvideoenc"
1482 dxa_decoder_select="zlib"
1483 eac3_decoder_select="ac3_decoder"
1484 eac3_encoder_select="ac3_encoder"
1485 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1486 eatgq_decoder_select="aandcttables"
1487 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1488 ffv1_decoder_select="golomb rangecoder"
1489 ffv1_encoder_select="rangecoder"
1490 ffvhuff_encoder_select="huffman"
1491 flac_decoder_select="golomb"
1492 flac_encoder_select="golomb lpc"
1493 flashsv_decoder_select="zlib"
1494 flashsv_encoder_select="zlib"
1495 flashsv2_decoder_select="zlib"
1496 flv_decoder_select="h263_decoder"
1497 flv_encoder_select="h263_encoder"
1498 fraps_decoder_select="huffman"
1499 h261_decoder_select="error_resilience mpegvideo"
1500 h261_encoder_select="aandcttables mpegvideoenc"
1501 h263_decoder_select="error_resilience h263_parser mpegvideo"
1502 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1503 h263i_decoder_select="h263_decoder"
1504 h263p_encoder_select="h263_encoder"
1505 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1506 huffyuv_encoder_select="huffman"
1507 iac_decoder_select="fft mdct sinewin"
1508 imc_decoder_select="fft mdct sinewin"
1509 jpegls_decoder_select="golomb"
1510 jpegls_encoder_select="golomb"
1511 ljpeg_encoder_select="aandcttables mpegvideoenc"
1512 loco_decoder_select="golomb"
1513 mdec_decoder_select="error_resilience mpegvideo"
1514 mjpeg_encoder_select="aandcttables mpegvideoenc"
1515 mlp_decoder_select="mlp_parser"
1516 mp1_decoder_select="mpegaudio"
1517 mp1float_decoder_select="mpegaudio"
1518 mp2_decoder_select="mpegaudio"
1519 mp2float_decoder_select="mpegaudio"
1520 mp3_decoder_select="mpegaudio"
1521 mp3adu_decoder_select="mpegaudio"
1522 mp3adufloat_decoder_select="mpegaudio"
1523 mp3float_decoder_select="mpegaudio"
1524 mp3on4_decoder_select="mpegaudio"
1525 mp3on4float_decoder_select="mpegaudio"
1526 mpc7_decoder_select="mpegaudiodsp"
1527 mpc8_decoder_select="mpegaudiodsp"
1528 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1529 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1530 mpeg1video_decoder_select="error_resilience mpegvideo"
1531 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1532 mpeg2video_decoder_select="error_resilience mpegvideo"
1533 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1534 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1535 mpeg4_encoder_select="h263_encoder"
1536 msmpeg4v1_decoder_select="h263_decoder"
1537 msmpeg4v1_encoder_select="h263_encoder"
1538 msmpeg4v2_decoder_select="h263_decoder"
1539 msmpeg4v2_encoder_select="h263_encoder"
1540 msmpeg4v3_decoder_select="h263_decoder"
1541 msmpeg4v3_encoder_select="h263_encoder"
1542 mss2_decoder_select="vc1_decoder"
1543 nellymoser_decoder_select="mdct sinewin"
1544 nellymoser_encoder_select="mdct sinewin"
1545 nuv_decoder_select="lzo"
1546 png_decoder_select="zlib"
1547 png_encoder_select="zlib"
1548 qcelp_decoder_select="lsp"
1549 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1550 ra_144_encoder_select="lpc"
1551 ralf_decoder_select="golomb"
1552 rv10_decoder_select="h263_decoder"
1553 rv10_encoder_select="h263_encoder"
1554 rv20_decoder_select="h263_decoder"
1555 rv20_encoder_select="h263_encoder"
1556 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1557 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1558 shorten_decoder_select="golomb"
1559 sipr_decoder_select="lsp"
1560 svq1_decoder_select="error_resilience mpegvideo"
1561 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1562 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1563 svq3_decoder_suggest="zlib"
1564 theora_decoder_select="vp3_decoder"
1565 tiff_decoder_suggest="zlib"
1566 tiff_encoder_suggest="zlib"
1567 truehd_decoder_select="mlp_decoder"
1568 tscc_decoder_select="zlib"
1569 twinvq_decoder_select="mdct lsp sinewin"
1570 utvideo_encoder_select="huffman"
1571 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1572 vc1image_decoder_select="vc1_decoder"
1573 vorbis_decoder_select="mdct"
1574 vorbis_encoder_select="mdct"
1575 vp3_decoder_select="vp3dsp videodsp"
1576 vp5_decoder_select="vp3dsp videodsp"
1577 vp6_decoder_select="huffman vp3dsp videodsp"
1578 vp6a_decoder_select="vp6_decoder"
1579 vp6f_decoder_select="vp6_decoder"
1580 vp8_decoder_select="h264pred videodsp"
1581 wmapro_decoder_select="mdct sinewin"
1582 wmav1_decoder_select="mdct sinewin"
1583 wmav1_encoder_select="mdct sinewin"
1584 wmav2_decoder_select="mdct sinewin"
1585 wmav2_encoder_select="mdct sinewin"
1586 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1587 wmv1_decoder_select="h263_decoder"
1588 wmv1_encoder_select="h263_encoder"
1589 wmv2_decoder_select="h263_decoder"
1590 wmv2_encoder_select="h263_encoder"
1591 wmv3_decoder_select="vc1_decoder"
1592 wmv3image_decoder_select="wmv3_decoder"
1593 zerocodec_decoder_select="zlib"
1594 zlib_decoder_select="zlib"
1595 zlib_encoder_select="zlib"
1596 zmbv_decoder_select="zlib"
1597 zmbv_encoder_select="zlib"
1598
1599 # hardware accelerators
1600 vaapi_deps="va_va_h"
1601 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1602 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1603
1604 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1605 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1606 h264_dxva2_hwaccel_deps="dxva2api_h"
1607 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1608 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1609 h264_vda_hwaccel_select="vda h264_decoder"
1610 h264_vdpau_decoder_select="vdpau h264_decoder"
1611 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1612 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1613 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1614 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1615 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1616 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1617 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1618 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1619 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1620 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1621 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1622 vc1_dxva2_hwaccel_deps="dxva2api_h"
1623 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1624 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1625 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1626 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1627 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1628 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1629 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1630 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1631
1632 # parsers
1633 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1634 mpeg4video_parser_select="error_resilience mpegvideo"
1635 mpegvideo_parser_select="error_resilience mpegvideo"
1636 vc1_parser_select="error_resilience mpegvideo"
1637
1638 # external libraries
1639 libfaac_encoder_deps="libfaac"
1640 libfdk_aac_encoder_deps="libfdk_aac"
1641 libgsm_decoder_deps="libgsm"
1642 libgsm_encoder_deps="libgsm"
1643 libgsm_ms_decoder_deps="libgsm"
1644 libgsm_ms_encoder_deps="libgsm"
1645 libilbc_decoder_deps="libilbc"
1646 libilbc_encoder_deps="libilbc"
1647 libmp3lame_encoder_deps="libmp3lame"
1648 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1649 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1650 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1651 libopenjpeg_decoder_deps="libopenjpeg"
1652 libopenjpeg_encoder_deps="libopenjpeg"
1653 libopus_decoder_deps="libopus"
1654 libopus_encoder_deps="libopus"
1655 libschroedinger_decoder_deps="libschroedinger"
1656 libschroedinger_encoder_deps="libschroedinger"
1657 libspeex_decoder_deps="libspeex"
1658 libspeex_encoder_deps="libspeex"
1659 libtheora_encoder_deps="libtheora"
1660 libvo_aacenc_encoder_deps="libvo_aacenc"
1661 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1662 libvorbis_encoder_deps="libvorbis"
1663 libvpx_vp8_decoder_deps="libvpx"
1664 libvpx_vp8_encoder_deps="libvpx"
1665 libvpx_vp9_decoder_deps="libvpx"
1666 libvpx_vp9_encoder_deps="libvpx"
1667 libx264_encoder_deps="libx264"
1668 libxavs_encoder_deps="libxavs"
1669 libxvid_encoder_deps="libxvid"
1670
1671 # demuxers / muxers
1672 ac3_demuxer_select="ac3_parser"
1673 asf_stream_muxer_select="asf_muxer"
1674 avisynth_demuxer_deps="avisynth"
1675 dirac_demuxer_select="dirac_parser"
1676 eac3_demuxer_select="ac3_parser"
1677 flac_demuxer_select="flac_parser"
1678 ipod_muxer_select="mov_muxer"
1679 ismv_muxer_select="mov_muxer"
1680 matroska_audio_muxer_select="matroska_muxer"
1681 matroska_demuxer_suggest="bzlib lzo zlib"
1682 mov_demuxer_suggest="zlib"
1683 mov_muxer_select="rtpenc_chain"
1684 mp3_demuxer_select="mpegaudio_parser"
1685 mp4_muxer_select="mov_muxer"
1686 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1687 mpegtsraw_demuxer_select="mpegts_demuxer"
1688 mxf_d10_muxer_select="mxf_muxer"
1689 ogg_demuxer_select="golomb"
1690 psp_muxer_select="mov_muxer"
1691 rtp_demuxer_select="sdp_demuxer"
1692 rtp_muxer_select="mpegvideo"
1693 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1694 rtsp_demuxer_select="http_protocol rtpdec"
1695 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1696 sap_demuxer_select="sdp_demuxer"
1697 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1698 sdp_demuxer_select="rtpdec"
1699 smoothstreaming_muxer_select="ismv_muxer"
1700 spdif_muxer_select="aac_parser"
1701 tak_demuxer_select="tak_parser"
1702 tg2_muxer_select="mov_muxer"
1703 tgp_muxer_select="mov_muxer"
1704 w64_demuxer_deps="wav_demuxer"
1705
1706 # indevs / outdevs
1707 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1708 alsa_outdev_deps="alsa_asoundlib_h"
1709 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1710 dv1394_indev_deps="dv1394 dv_demuxer"
1711 fbdev_indev_deps="linux_fb_h"
1712 jack_indev_deps="jack_jack_h"
1713 libcdio_indev_deps="libcdio"
1714 libdc1394_indev_deps="libdc1394"
1715 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1716 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1717 pulse_indev_deps="libpulse"
1718 sndio_indev_deps="sndio_h"
1719 sndio_outdev_deps="sndio_h"
1720 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1721 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1722 vfwcap_indev_extralibs="-lavicap32"
1723 x11grab_indev_deps="x11grab XShmCreateImage"
1724
1725 # protocols
1726 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1727 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1728 ffrtmpcrypt_protocol_select="tcp_protocol"
1729 ffrtmphttp_protocol_deps="!librtmp_protocol"
1730 ffrtmphttp_protocol_select="http_protocol"
1731 gopher_protocol_select="network"
1732 httpproxy_protocol_select="tcp_protocol"
1733 http_protocol_select="tcp_protocol"
1734 https_protocol_select="tls_protocol"
1735 librtmp_protocol_deps="librtmp"
1736 librtmpe_protocol_deps="librtmp"
1737 librtmps_protocol_deps="librtmp"
1738 librtmpt_protocol_deps="librtmp"
1739 librtmpte_protocol_deps="librtmp"
1740 mmsh_protocol_select="http_protocol"
1741 mmst_protocol_select="network"
1742 rtmp_protocol_deps="!librtmp_protocol"
1743 rtmp_protocol_select="tcp_protocol"
1744 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1745 rtmps_protocol_deps="!librtmp_protocol"
1746 rtmps_protocol_select="tls_protocol"
1747 rtmpt_protocol_select="ffrtmphttp_protocol"
1748 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1749 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1750 rtp_protocol_select="udp_protocol"
1751 sctp_protocol_deps="struct_sctp_event_subscribe"
1752 sctp_protocol_select="network"
1753 srtp_protocol_select="rtp_protocol"
1754 tcp_protocol_select="network"
1755 tls_protocol_deps_any="openssl gnutls"
1756 tls_protocol_select="tcp_protocol"
1757 udp_protocol_select="network"
1758
1759 # filters
1760 blackframe_filter_deps="gpl"
1761 boxblur_filter_deps="gpl"
1762 cropdetect_filter_deps="gpl"
1763 delogo_filter_deps="gpl"
1764 drawtext_filter_deps="libfreetype"
1765 frei0r_filter_deps="frei0r dlopen strtok_r"
1766 frei0r_filter_extralibs='$ldl'
1767 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1768 frei0r_src_filter_extralibs='$ldl'
1769 hqdn3d_filter_deps="gpl"
1770 resample_filter_deps="avresample"
1771 ocv_filter_deps="libopencv"
1772 scale_filter_deps="swscale"
1773 yadif_filter_deps="gpl"
1774
1775 # libraries
1776 avcodec_deps="avutil"
1777 avdevice_deps="avutil avcodec avformat"
1778 avfilter_deps="avutil"
1779 avformat_deps="avutil avcodec"
1780 avresample_deps="avutil"
1781 swscale_deps="avutil"
1782
1783 # programs
1784 avconv_deps="avcodec avfilter avformat avresample swscale"
1785 avconv_select="aformat_filter anull_filter asyncts_filter format_filter
1786 fps_filter null_filter resample_filter scale_filter
1787 setpts_filter"
1788 avplay_deps="avcodec avformat avresample swscale sdl"
1789 avplay_select="rdft"
1790 avprobe_deps="avcodec avformat"
1791 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1792 avserver_extralibs='$ldl'
1793
1794 doc_deps="texi2html"
1795
1796 # default parameters
1797
1798 logfile="config.log"
1799
1800 # installation paths
1801 prefix_default="/usr/local"
1802 bindir_default='${prefix}/bin'
1803 datadir_default='${prefix}/share/avconv'
1804 incdir_default='${prefix}/include'
1805 libdir_default='${prefix}/lib'
1806 mandir_default='${prefix}/share/man'
1807 shlibdir_default="$libdir_default"
1808
1809 # toolchain
1810 ar_default="ar"
1811 cc_default="gcc"
1812 host_cc_default="gcc"
1813 cp_f="cp -f"
1814 ln_s="ln -sf"
1815 nm_default="nm -g"
1816 objformat="elf"
1817 pkg_config_default=pkg-config
1818 ranlib="ranlib"
1819 yasmexe="yasm"
1820
1821 nogas=":"
1822
1823 # machine
1824 arch_default=$(uname -m)
1825 cpu="generic"
1826
1827 # OS
1828 target_os_default=$(tolower $(uname -s))
1829 host_os=$target_os_default
1830
1831 # configurable options
1832 enable $LIBRARY_LIST $PROGRAM_LIST
1833
1834 enable asm
1835 enable debug
1836 enable doc
1837 enable optimizations
1838 enable safe_bitstream_reader
1839 enable static
1840 enable swscale_alpha
1841
1842 # build settings
1843 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1844 AVSERVERLDFLAGS=-Wl,-E
1845 LIBPREF="lib"
1846 LIBSUF=".a"
1847 FULLNAME='$(NAME)$(BUILDSUF)'
1848 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1849 SLIBPREF="lib"
1850 SLIBSUF=".so"
1851 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1852 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1853 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1854 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1855 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1856 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1857
1858 asflags_filter=echo
1859 cflags_filter=echo
1860 ldflags_filter=echo
1861
1862 AS_C='-c'
1863 AS_O='-o $@'
1864 CC_C='-c'
1865 CC_E='-E -o $@'
1866 CC_O='-o $@'
1867 LD_O='-o $@'
1868 LD_LIB='-l%'
1869 LD_PATH='-L'
1870 HOSTCC_C='-c'
1871 HOSTCC_O='-o $@'
1872 HOSTLD_O='-o $@'
1873
1874 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1875 host_libs='-lm'
1876 host_cflags_filter=echo
1877 host_ldflags_filter=echo
1878
1879 target_path='$(CURDIR)'
1880
1881 # since the object filename is not given with the -MM flag, the compiler
1882 # is only able to print the basename, and we must add the path ourselves
1883 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1884 DEPFLAGS='-MM'
1885
1886 # find source path
1887 if test -f configure; then
1888 source_path=.
1889 else
1890 source_path=$(cd $(dirname "$0"); pwd)
1891 echo "$source_path" | grep -q '[[:blank:]]' &&
1892 die "Out of tree builds are impossible with whitespace in source path."
1893 test -e "$source_path/config.h" &&
1894 die "Out of tree builds are impossible with config.h in source dir."
1895 fi
1896
1897 for v in "$@"; do
1898 r=${v#*=}
1899 l=${v%"$r"}
1900 r=$(sh_quote "$r")
1901 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1902 done
1903
1904 find_things(){
1905 thing=$1
1906 pattern=$2
1907 file=$source_path/$3
1908 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1909 }
1910
1911 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1912 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1913 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1914 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1915 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1916 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1917 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1918 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1919 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1920 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1921 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1922
1923 ALL_COMPONENTS="
1924 $BSF_LIST
1925 $DECODER_LIST
1926 $DEMUXER_LIST
1927 $ENCODER_LIST
1928 $FILTER_LIST
1929 $HWACCEL_LIST
1930 $INDEV_LIST
1931 $MUXER_LIST
1932 $OUTDEV_LIST
1933 $PARSER_LIST
1934 $PROTOCOL_LIST
1935 "
1936
1937 for n in $COMPONENT_LIST; do
1938 v=$(toupper ${n%s})_LIST
1939 eval enable \$$v
1940 eval ${n}_if_any="\$$v"
1941 done
1942
1943 enable $ARCH_EXT_LIST
1944
1945 die_unknown(){
1946 echo "Unknown option \"$1\"."
1947 echo "See $0 --help for available options."
1948 exit 1
1949 }
1950
1951 show_list() {
1952 suffix=_$1
1953 shift
1954 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1955 exit 0
1956 }
1957
1958 rand_list(){
1959 IFS=', '
1960 set -- $*
1961 unset IFS
1962 for thing; do
1963 comp=${thing%:*}
1964 prob=${thing#$comp}
1965 prob=${prob#:}
1966 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
1967 echo "prob ${prob:-0.5}"
1968 printf '%s\n' $comp
1969 done
1970 }
1971
1972 do_random(){
1973 action=$1
1974 shift
1975 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
1976 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
1977 }
1978
1979 for opt do
1980 optval="${opt#*=}"
1981 case "$opt" in
1982 --extra-ldflags=*)
1983 add_ldflags $optval
1984 ;;
1985 --extra-libs=*)
1986 add_extralibs $optval
1987 ;;
1988 --disable-devices)
1989 disable $INDEV_LIST $OUTDEV_LIST
1990 ;;
1991 --enable-debug=*)
1992 debuglevel="$optval"
1993 ;;
1994 --disable-programs)
1995 disable $PROGRAM_LIST
1996 ;;
1997 --disable-everything)
1998 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1999 ;;
2000 --disable-all)
2001 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2002 disable $LIBRARY_LIST $PROGRAM_LIST doc
2003 ;;
2004 --enable-random|--disable-random)
2005 action=${opt%%-random}
2006 do_random ${action#--} $COMPONENT_LIST
2007 ;;
2008 --enable-random=*|--disable-random=*)
2009 action=${opt%%-random=*}
2010 do_random ${action#--} $optval
2011 ;;
2012 --enable-*=*|--disable-*=*)
2013 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2014 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2015 eval list=\$$(toupper $thing)_LIST
2016 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2017 $action $(filter "$name" $list)
2018 ;;
2019 --enable-?*|--disable-?*)
2020 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2021 if is_in $option $COMPONENT_LIST; then
2022 test $action = disable && action=unset
2023 eval $action \$$(toupper ${option%s})_LIST
2024 elif is_in $option $CMDLINE_SELECT; then
2025 $action $option
2026 else
2027 die_unknown $opt
2028 fi
2029 ;;
2030 --list-*)
2031 NAME="${opt#--list-}"
2032 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2033 NAME=${NAME%s}
2034 eval show_list $NAME \$$(toupper $NAME)_LIST
2035 ;;
2036 --help|-h) show_help
2037 ;;
2038 *)
2039 optname="${opt%%=*}"
2040 optname="${optname#--}"
2041 optname=$(echo "$optname" | sed 's/-/_/g')
2042 if is_in $optname $CMDLINE_SET; then
2043 eval $optname='$optval'
2044 elif is_in $optname $CMDLINE_APPEND; then
2045 append $optname "$optval"
2046 else
2047 die_unknown $opt
2048 fi
2049 ;;
2050 esac
2051 done
2052
2053 disabled logging && logfile=/dev/null
2054
2055 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2056 set >> $logfile
2057
2058 test -n "$cross_prefix" && enable cross_compile
2059
2060 if enabled cross_compile; then
2061 test -n "$arch" && test -n "$target_os" ||
2062 die "Must specify target arch and OS when cross-compiling"
2063 fi
2064
2065 ar_default="${cross_prefix}${ar_default}"
2066 cc_default="${cross_prefix}${cc_default}"
2067 nm_default="${cross_prefix}${nm_default}"
2068 pkg_config_default="${cross_prefix}${pkg_config_default}"
2069 ranlib="${cross_prefix}${ranlib}"
2070
2071 sysinclude_default="${sysroot}/usr/include"
2072
2073 case "$toolchain" in
2074 clang-asan)
2075 cc_default="clang"
2076 add_cflags -faddress-sanitizer
2077 add_ldflags -faddress-sanitizer
2078 ;;
2079 clang-tsan)
2080 cc_default="clang"
2081 add_cflags -fthread-sanitizer
2082 add_ldflags -fthread-sanitizer
2083 ;;
2084 msvc)
2085 cc_default="c99wrap cl"
2086 ld_default="c99wrap link"
2087 nm_default="dumpbin -symbols"
2088 ar_default="lib"
2089 target_os_default="win32"
2090 ;;
2091 ?*)
2092 die "Unknown toolchain $toolchain"
2093 ;;
2094 esac
2095
2096 set_default arch cc pkg_config sysinclude target_os
2097 enabled cross_compile || host_cc_default=$cc
2098 set_default host_cc
2099
2100 if ! $pkg_config --version >/dev/null 2>&1; then
2101 warn "$pkg_config not found, library detection may fail."
2102 pkg_config=false
2103 fi
2104
2105 exesuf() {
2106 case $1 in
2107 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2108 esac
2109 }
2110
2111 EXESUF=$(exesuf $target_os)
2112 HOSTEXESUF=$(exesuf $host_os)
2113
2114 # set temporary file name
2115 : ${TMPDIR:=$TEMPDIR}
2116 : ${TMPDIR:=$TMP}
2117 : ${TMPDIR:=/tmp}
2118
2119 if ! check_cmd mktemp -u XXXXXX; then
2120 # simple replacement for missing mktemp
2121 # NOT SAFE FOR GENERAL USE
2122 mktemp(){
2123 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2124 }
2125 fi
2126
2127 tmpfile(){
2128 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2129 (set -C; exec > $tmp) 2>/dev/null ||
2130 die "Unable to create temporary file in $TMPDIR."
2131 append TMPFILES $tmp
2132 eval $1=$tmp
2133 }
2134
2135 trap 'rm -f -- $TMPFILES' EXIT
2136
2137 tmpfile TMPASM .asm
2138 tmpfile TMPC .c
2139 tmpfile TMPE $EXESUF
2140 tmpfile TMPH .h
2141 tmpfile TMPO .o
2142 tmpfile TMPS .S
2143 tmpfile TMPSH .sh
2144 tmpfile TMPV .ver
2145
2146 unset -f mktemp
2147
2148 chmod +x $TMPE
2149
2150 # make sure we can execute files in $TMPDIR
2151 cat > $TMPSH 2>> $logfile <<EOF
2152 #! /bin/sh
2153 EOF
2154 chmod +x $TMPSH >> $logfile 2>&1
2155 if ! $TMPSH >> $logfile 2>&1; then
2156 cat <<EOF
2157 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2158 variable to another directory and make sure that it is not mounted noexec.
2159 EOF
2160 die "Sanity test failed."
2161 fi
2162
2163 ccc_flags(){
2164 for flag; do
2165 case $flag in
2166 -std=c99) echo -c99 ;;
2167 -mcpu=*) echo -arch ${flag#*=} ;;
2168 -mieee) echo -ieee ;;
2169 -O*|-fast) echo $flag ;;
2170 -fno-math-errno) echo -assume nomath_errno ;;
2171 -g) echo -g3 ;;
2172 -Wall) echo -msg_enable level2 ;;
2173 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2174 -Wl,*) echo $flag ;;
2175 -f*|-W*) ;;
2176 *) echo $flag ;;
2177 esac
2178 done
2179 }
2180
2181 msvc_flags(){
2182 for flag; do
2183 case $flag in
2184 -fomit-frame-pointer) echo -Oy ;;
2185 -g) echo -Z7 ;;
2186 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2187 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2188 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2189 -wd4996 -wd4273 ;;
2190 -std=c99) ;;
2191 -fno-math-errno) ;;
2192 -fno-common) ;;
2193 -fno-signed-zeros) ;;
2194 -fPIC) ;;
2195 -lz) echo zlib.lib ;;
2196 -lavifil32) echo vfw32.lib ;;
2197 -lavicap32) echo vfw32.lib user32.lib ;;
2198 -l*) echo ${flag#-l}.lib ;;
2199 *) echo $flag ;;
2200 esac
2201 done
2202 }
2203
2204 pgi_flags(){
2205 for flag; do
2206 case $flag in
2207 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2208 -fomit-frame-pointer) echo -Mnoframe ;;
2209 -g) echo -gopt ;;
2210 *) echo $flag ;;
2211 esac
2212 done
2213 }
2214
2215 suncc_flags(){
2216 for flag; do
2217 case $flag in
2218 -march=*|-mcpu=*)
2219 case "${flag#*=}" in
2220 native) echo -xtarget=native ;;
2221 v9|niagara) echo -xarch=sparc ;;
2222 ultrasparc) echo -xarch=sparcvis ;;
2223 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2224 i586|pentium) echo -xchip=pentium ;;
2225 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2226 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2227 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2228 pentium4*) echo -xtarget=pentium4 ;;
2229 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2230 *-sse3) echo -xarch=sse3 ;;
2231 core2) echo -xarch=ssse3 -xchip=core2 ;;
2232 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2233 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2234 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2235 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2236 k8|opteron|athlon64|athlon-fx)
2237 echo -xarch=sse2a ;;
2238 athlon*) echo -xarch=pentium_proa ;;
2239 esac
2240 ;;
2241 -std=c99) echo -xc99 ;;
2242 -fomit-frame-pointer) echo -xregs=frameptr ;;
2243 -fPIC) echo -KPIC -xcode=pic32 ;;
2244 -W*,*) echo $flag ;;
2245 -f*-*|-W*|-mimpure-text) ;;
2246 -shared) echo -G ;;
2247 *) echo $flag ;;
2248 esac
2249 done
2250 }
2251
2252 tms470_flags(){
2253 for flag; do
2254 case $flag in
2255 -march=*|-mcpu=*)
2256 case "${flag#*=}" in
2257 armv7-a|cortex-a*) echo -mv=7a8 ;;
2258 armv7-r|cortex-r*) echo -mv=7r4 ;;
2259 armv7-m|cortex-m*) echo -mv=7m3 ;;
2260 armv6*|arm11*) echo -mv=6 ;;
2261 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2262 echo -mv=5e ;;
2263 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2264 esac
2265 ;;
2266 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2267 -mfpu=vfp) echo --float_support=vfpv2 ;;
2268 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2269 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2270 -msoft-float) echo --float_support=vfplib ;;
2271 -O[0-3]|-mf=*) echo $flag ;;
2272 -g) echo -g -mn ;;
2273 -pds=*) echo $flag ;;
2274 -D*|-I*) echo $flag ;;
2275 --gcc|--abi=*) echo $flag ;;
2276 -me) echo $flag ;;
2277 esac
2278 done
2279 }
2280
2281 probe_cc(){
2282 pfx=$1
2283 _cc=$2
2284
2285 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2286 unset _ld_o _ldflags _ld_lib _ld_path
2287 unset _depflags _DEPCMD _DEPFLAGS
2288 _flags_filter=echo
2289
2290 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2291 _type=llvm_gcc
2292 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2293 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2294 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2295 _cflags_speed='-O3'
2296 _cflags_size='-Os'
2297 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2298 _type=gcc
2299 gcc_version=$($_cc --version | head -n1)
2300 gcc_basever=$($_cc -dumpversion)
2301 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2302 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2303 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2304 if ! $_cc -dumpversion | grep -q '^2\.'; then
2305 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2306 fi
2307 _cflags_speed='-O3'
2308 _cflags_size='-Os'
2309 elif $_cc --version 2>/dev/null | grep -q Intel; then
2310 _type=icc
2311 _ident=$($_cc --version | head -n1)
2312 _depflags='-MMD'
2313 _cflags_speed='-O3'
2314 _cflags_size='-Os'
2315 _cflags_noopt='-O1'
2316 elif $_cc -v 2>&1 | grep -q xlc; then
2317 _type=xlc
2318 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2319 _cflags_speed='-O5'
2320 _cflags_size='-O5 -qcompact'
2321 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2322 _type=ccc
2323 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2324 _DEPFLAGS='-M'
2325 _cflags_speed='-fast'
2326 _cflags_size='-O1'
2327 _flags_filter=ccc_flags
2328 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2329 test -d "$sysroot" || die "No valid sysroot specified."
2330 _type=armcc
2331 _ident=$($_cc --vsn | head -n1)
2332 armcc_conf="$PWD/armcc.conf"
2333 $_cc --arm_linux_configure \
2334 --arm_linux_config_file="$armcc_conf" \
2335 --configure_sysroot="$sysroot" \
2336 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2337 die "Error creating armcc configuration file."
2338 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2339 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2340 as_default="${cross_prefix}gcc"
2341 _depflags='-MMD'
2342 _cflags_speed='-O3'
2343 _cflags_size='-Os'
2344 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2345 _type=tms470
2346 _ident=$($_cc -version | head -n1 | tr -s ' ')
2347 _flags='--gcc --abi=eabi -me'
2348 _cc_e='-ppl -fe=$@'
2349 _cc_o='-fe=$@'
2350 _depflags='-ppa -ppd=$(@:.o=.d)'
2351 _cflags_speed='-O3 -mf=5'
2352 _cflags_size='-O3 -mf=2'
2353 _flags_filter=tms470_flags
2354 elif $_cc -v 2>&1 | grep -q clang; then
2355 _type=clang
2356 _ident=$($_cc --version | head -n1)
2357 _depflags='-MMD'
2358 _cflags_speed='-O3'
2359 _cflags_size='-Os'
2360 elif $_cc -V 2>&1 | grep -q Sun; then
2361 _type=suncc
2362 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2363 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2364 _DEPFLAGS='-xM1 -xc99'
2365 _ldflags='-std=c99'
2366 _cflags_speed='-O5'
2367 _cflags_size='-O5 -xspace'
2368 _flags_filter=suncc_flags
2369 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2370 _type=pathscale
2371 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2372 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2373 _cflags_speed='-O2'
2374 _cflags_size='-Os'
2375 _flags_filter='filter_out -Wdisabled-optimization'
2376 elif $_cc -v 2>&1 | grep -q Open64; then
2377 _type=open64
2378 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2379 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2380 _cflags_speed='-O2'
2381 _cflags_size='-Os'
2382 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2383 elif $_cc -V 2>&1 | grep -q Portland; then
2384 _type=pgi
2385 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2386 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2387 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2388 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2389 _cflags_noopt="-O1"
2390 _flags_filter=pgi_flags
2391 elif $_cc 2>&1 | grep -q Microsoft; then
2392 _type=msvc
2393 _ident=$($cc 2>&1 | head -n1)
2394 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2395 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2396 _cflags_speed="-O2"
2397 _cflags_size="-O1"
2398 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2399 if $_cc 2>&1 | grep -q Linker; then
2400 _ld_o='-out $@'
2401 else
2402 _ld_o='-Fe$@'
2403 fi
2404 _cc_o='-Fo $@'
2405 _cc_e='-P -Fi $@'
2406 _flags_filter=msvc_flags
2407 _ld_lib='lib%.a'
2408 _ld_path='-libpath:'
2409 _flags='-nologo'
2410 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2411 if [ $pfx = hostcc ]; then
2412 append _cflags -Dsnprintf=_snprintf
2413 fi
2414 fi
2415
2416 eval ${pfx}_type=\$_type
2417 eval ${pfx}_ident=\$_ident
2418 }
2419
2420 set_ccvars(){
2421 eval ${1}_C=\${_cc_c-\${${1}_C}}
2422 eval ${1}_E=\${_cc_e-\${${1}_E}}
2423 eval ${1}_O=\${_cc_o-\${${1}_O}}
2424
2425 if [ -n "$_depflags" ]; then
2426 eval ${1}_DEPFLAGS=\$_depflags
2427 else
2428 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2429 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2430 eval DEP${1}FLAGS=\$_flags
2431 fi
2432 }
2433
2434 probe_cc cc "$cc"
2435 cflags_filter=$_flags_filter
2436 cflags_speed=$_cflags_speed
2437 cflags_size=$_cflags_size
2438 cflags_noopt=$_cflags_noopt
2439 add_cflags $_flags $_cflags
2440 cc_ldflags=$_ldflags
2441 set_ccvars CC
2442
2443 probe_cc hostcc "$host_cc"
2444 host_cflags_filter=$_flags_filter
2445 add_host_cflags $_flags $_cflags
2446 set_ccvars HOSTCC
2447
2448 test -n "$cc_type" && enable $cc_type ||
2449 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2450
2451 : ${as_default:=$cc}
2452 : ${dep_cc_default:=$cc}
2453 : ${ld_default:=$cc}
2454 : ${host_ld_default:=$host_cc}
2455 set_default ar as dep_cc ld host_ld
2456
2457 probe_cc as "$as"
2458 asflags_filter=$_flags_filter
2459 add_asflags $_flags $_cflags
2460 set_ccvars AS
2461
2462 probe_cc ld "$ld"
2463 ldflags_filter=$_flags_filter
2464 add_ldflags $_flags $_ldflags
2465 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2466 LD_O=${_ld_o-$LD_O}
2467 LD_LIB=${_ld_lib-$LD_LIB}
2468 LD_PATH=${_ld_path-$LD_PATH}
2469
2470 probe_cc hostld "$host_ld"
2471 host_ldflags_filter=$_flags_filter
2472 add_host_ldflags $_flags $_ldflags
2473 HOSTLD_O=${_ld_o-$HOSTLD_O}
2474
2475 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2476 probe_cc depcc "$dep_cc"
2477 CCDEP=${_DEPCMD:-$DEPCMD}
2478 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2479 DEPCCFLAGS=$_flags
2480 fi
2481
2482 if $ar 2>&1 | grep -q Microsoft; then
2483 arflags="-nologo"
2484 ar_o='-out:$@'
2485 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2486 arflags="rq"
2487 ar_o='$@'
2488 else
2489 arflags="rc"
2490 ar_o='$@'
2491 fi
2492
2493 add_cflags $extra_cflags
2494 add_asflags $extra_cflags
2495
2496 if test -n "$sysroot"; then
2497 case "$cc_type" in
2498 gcc|llvm_gcc|clang)
2499 add_cppflags --sysroot="$sysroot"
2500 add_ldflags --sysroot="$sysroot"
2501 ;;
2502 tms470)
2503 add_cppflags -I"$sysinclude"
2504 add_ldflags --sysroot="$sysroot"
2505 ;;
2506 esac
2507 fi
2508
2509 if test "$cpu" = host; then
2510 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2511
2512 case "$cc_type" in
2513 gcc|llvm_gcc)
2514 check_native(){
2515 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2516 sed -n "/cc1.*$1=/{
2517 s/.*$1=\\([^ ]*\\).*/\\1/
2518 p
2519 q
2520 }" $TMPE
2521 }
2522 cpu=$(check_native -march || check_native -mcpu)
2523 ;;
2524 esac
2525
2526 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2527 fi
2528
2529 # Deal with common $arch aliases
2530 case "$arch" in
2531 aarch64|arm64)
2532 arch="aarch64"
2533 ;;
2534 arm*)
2535 arch="arm"
2536 ;;
2537 mips*|IP*)
2538 arch="mips"
2539 ;;
2540 parisc*|hppa*)
2541 arch="parisc"
2542 ;;
2543 "Power Macintosh"|ppc*|powerpc*)
2544 arch="ppc"
2545 ;;
2546 s390|s390x)
2547 arch="s390"
2548 ;;
2549 sh4|sh)
2550 arch="sh4"
2551 ;;
2552 sun4u|sparc*)
2553 arch="sparc"
2554 ;;
2555 tilegx|tile-gx)
2556 arch="tilegx"
2557 ;;
2558 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2559 arch="x86"
2560 ;;
2561 esac
2562
2563 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2564 enable $arch
2565
2566 # Add processor-specific flags
2567 if enabled aarch64; then
2568
2569 case $cpu in
2570 armv*)
2571 cpuflags="-march=$cpu"
2572 ;;
2573 *)
2574 cpuflags="-mcpu=$cpu"
2575 ;;
2576 esac
2577
2578 elif enabled alpha; then
2579
2580 cpuflags="-mcpu=$cpu"
2581
2582 elif enabled arm; then
2583
2584 check_arm_arch() {
2585 check_cpp_condition stddef.h \
2586 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2587 $cpuflags
2588 }
2589
2590 probe_arm_arch() {
2591 if check_arm_arch 4; then echo armv4;
2592 elif check_arm_arch 4T; then echo armv4t;
2593 elif check_arm_arch 5; then echo armv5;
2594 elif check_arm_arch 5E; then echo armv5e;
2595 elif check_arm_arch 5T; then echo armv5t;
2596 elif check_arm_arch 5TE; then echo armv5te;
2597 elif check_arm_arch 5TEJ; then echo armv5te;
2598 elif check_arm_arch 6; then echo armv6;
2599 elif check_arm_arch 6J; then echo armv6j;
2600 elif check_arm_arch 6K; then echo armv6k;
2601 elif check_arm_arch 6Z; then echo armv6z;
2602 elif check_arm_arch 6ZK; then echo armv6zk;
2603 elif check_arm_arch 6T2; then echo armv6t2;
2604 elif check_arm_arch 7; then echo armv7;
2605 elif check_arm_arch 7A 7_A; then echo armv7-a;
2606 elif check_arm_arch 7R 7_R; then echo armv7-r;
2607 elif check_arm_arch 7M 7_M; then echo armv7-m;
2608 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2609 elif check_arm_arch 8A 8_A; then echo armv8-a;
2610 fi
2611 }
2612
2613 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2614
2615 case $cpu in
2616 armv*)
2617 cpuflags="-march=$cpu"
2618 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2619 ;;
2620 *)
2621 cpuflags="-mcpu=$cpu"
2622 case $cpu in
2623 cortex-a*) subarch=armv7a ;;
2624 cortex-r*) subarch=armv7r ;;
2625 cortex-m*) enable thumb; subarch=armv7m ;;
2626 arm11*) subarch=armv6 ;;
2627 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2628 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2629 *) subarch=$(probe_arm_arch) ;;
2630 esac
2631 ;;
2632 esac
2633
2634 case "$subarch" in
2635 armv5t*) enable fast_clz ;;
2636 armv[6-8]*) enable fast_clz fast_unaligned ;;
2637 esac
2638
2639 elif enabled avr32; then
2640
2641 case $cpu in
2642 ap7[02]0[0-2])
2643 subarch="avr32_ap"
2644 cpuflags="-mpart=$cpu"
2645 ;;
2646 ap)
2647 subarch="avr32_ap"
2648 cpuflags="-march=$cpu"
2649 ;;
2650 uc3[ab]*)
2651 subarch="avr32_uc"
2652 cpuflags="-mcpu=$cpu"
2653 ;;
2654 uc)
2655 subarch="avr32_uc"
2656 cpuflags="-march=$cpu"
2657 ;;
2658 esac
2659
2660 elif enabled bfin; then
2661
2662 cpuflags="-mcpu=$cpu"
2663
2664 elif enabled mips; then
2665
2666 cpuflags="-march=$cpu"
2667
2668 elif enabled ppc; then
2669
2670 case $(tolower $cpu) in
2671 601|ppc601|powerpc601)
2672 cpuflags="-mcpu=601"
2673 disable altivec
2674 ;;
2675 603*|ppc603*|powerpc603*)
2676 cpuflags="-mcpu=603"
2677 disable altivec
2678 ;;
2679 604*|ppc604*|powerpc604*)
2680 cpuflags="-mcpu=604"
2681 disable altivec
2682 ;;
2683 g3|75*|ppc75*|powerpc75*)
2684 cpuflags="-mcpu=750"
2685 disable altivec
2686 ;;
2687 g4|745*|ppc745*|powerpc745*)
2688 cpuflags="-mcpu=7450"
2689 ;;
2690 74*|ppc74*|powerpc74*)
2691 cpuflags="-mcpu=7400"
2692 ;;
2693 g5|970|ppc970|powerpc970)
2694 cpuflags="-mcpu=970"
2695 ;;
2696 power[3-7]*)
2697 cpuflags="-mcpu=$cpu"
2698 ;;
2699 cell)
2700 cpuflags="-mcpu=cell"
2701 enable ldbrx
2702 ;;
2703 e500mc)
2704 cpuflags="-mcpu=e500mc"
2705 disable altivec
2706 ;;
2707 e500v2)
2708 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2709 disable altivec
2710 ;;
2711 e500)
2712 cpuflags="-mcpu=8540 -mhard-float"
2713 disable altivec
2714 ;;
2715 esac
2716
2717 elif enabled sparc; then
2718
2719 case $cpu in
2720 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2721 cpuflags="-mcpu=$cpu"
2722 disable vis
2723 ;;
2724 ultrasparc*|niagara[234])
2725 cpuflags="-mcpu=$cpu"
2726 ;;
2727 esac
2728
2729 elif enabled x86; then
2730
2731 case $cpu in
2732 i[345]86|pentium)
2733 cpuflags="-march=$cpu"
2734 disable mmx
2735 ;;
2736 # targets that do NOT support conditional mov (cmov)
2737 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2738 cpuflags="-march=$cpu"
2739 disable cmov
2740 ;;
2741 # targets that do support conditional mov (cmov)
2742 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2743 cpuflags="-march=$cpu"
2744 enable cmov
2745 enable fast_cmov
2746 ;;
2747 # targets that do support conditional mov but on which it's slow
2748 pentium4|pentium4m|prescott|nocona)
2749 cpuflags="-march=$cpu"
2750 enable cmov
2751 disable fast_cmov
2752 ;;
2753 esac
2754
2755 fi
2756
2757 if [ "$cpu" != generic ]; then
2758 add_cflags $cpuflags
2759 add_asflags $cpuflags
2760 fi
2761
2762 # compiler sanity check
2763 check_exec <<EOF
2764 int main(void){ return 0; }
2765 EOF
2766 if test "$?" != 0; then
2767 echo "$cc is unable to create an executable file."
2768 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2769 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2770 echo "Only do this if you know what cross compiling means."
2771 fi
2772 die "C compiler test failed."
2773 fi
2774
2775 add_cppflags -D_ISOC99_SOURCE
2776 check_cflags -std=c99
2777 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2778 #include <stdlib.h>
2779 EOF
2780 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2781 #include <stdlib.h>
2782 EOF
2783
2784 check_host_cflags -std=c99
2785 check_host_cflags -Wall
2786
2787 check_64bit(){
2788 arch32=$1
2789 arch64=$2
2790 expr=$3
2791 check_code cc "" "int test[2*($expr) - 1]" &&
2792 subarch=$arch64 || subarch=$arch32
2793 }
2794
2795 case "$arch" in
2796 aarch64|alpha|ia64)
2797 spic=$shared
2798 ;;
2799 mips)
2800 check_64bit mips mips64 '_MIPS_SIM > 1'
2801 spic=$shared
2802 ;;
2803 parisc)
2804 check_64bit parisc parisc64 'sizeof(void *) > 4'
2805 spic=$shared
2806 ;;
2807 ppc)
2808 check_64bit ppc ppc64 'sizeof(void *) > 4'
2809 spic=$shared
2810 ;;
2811 sparc)
2812 check_64bit sparc sparc64 'sizeof(void *) > 4'
2813 spic=$shared
2814 ;;
2815 x86)
2816 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
2817 if test "$subarch" = "x86_64"; then
2818 spic=$shared
2819 fi
2820 ;;
2821 esac
2822
2823 enable $subarch
2824 enabled spic && enable pic
2825
2826 # OS specific
2827 case $target_os in
2828 haiku)
2829 prefix_default="/boot/common"
2830 network_extralibs="-lnetwork"
2831 host_libs=
2832 ;;
2833 sunos)
2834 AVSERVERLDFLAGS=""
2835 SHFLAGS='-shared -Wl,-h,$$(@F)'
2836 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2837 network_extralibs="-lsocket -lnsl"
2838 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2839 # When using suncc to build, the Solaris linker will mark
2840 # an executable with each instruction set encountered by
2841 # the Solaris assembler. As our libraries contain their own
2842 # guards for processor-specific code, instead suppress
2843 # generation of the HWCAPS ELF section on Solaris x86 only.
2844 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2845 nm_default='nm -P -g'
2846 ;;
2847 netbsd)
2848 disable symver
2849 oss_indev_extralibs="-lossaudio"
2850 oss_outdev_extralibs="-lossaudio"
2851 ;;
2852 openbsd|bitrig)
2853 # On OpenBSD 4.5. the compiler does not use PIC unless
2854 # explicitly using -fPIC. Libav builds fine without PIC,
2855 # however the generated executable will not do anything
2856 # (simply quits with exit-code 1, no crash, no output).
2857 # Thus explicitly enable PIC here.
2858 enable pic
2859 disable symver
2860 SHFLAGS='-shared'
2861 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2862 SLIB_INSTALL_LINKS=
2863 oss_indev_extralibs="-lossaudio"
2864 oss_outdev_extralibs="-lossaudio"
2865 ;;
2866 dragonfly)
2867 disable symver
2868 ;;
2869 freebsd)
2870 ;;
2871 bsd/os)
2872 add_extralibs -lpoll -lgnugetopt
2873 ;;
2874 darwin)
2875 gas="gas-preprocessor.pl $cc"
2876 enabled ppc && add_asflags -force_cpusubtype_ALL
2877 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2878 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2879 add_ldflags -Wl,-dynamic,-search_paths_first
2880 SLIBSUF=".dylib"
2881 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2882 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2883 AVSERVERLDFLAGS=-Wl,-bind_at_load
2884 objformat="macho"
2885 enabled x86_64 && objformat="macho64"
2886 enabled_any pic shared ||
2887 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2888 ;;
2889 mingw32*)
2890 if test $target_os = "mingw32ce"; then
2891 disable network
2892 else
2893 target_os=mingw32
2894 fi
2895 LIBTARGET=i386
2896 if enabled x86_64; then
2897 LIBTARGET="i386:x86-64"
2898 elif enabled arm; then
2899 LIBTARGET=arm-wince
2900 fi
2901 shlibdir_default="$bindir_default"
2902 SLIBPREF=""
2903 SLIBSUF=".dll"
2904 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2905 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2906 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2907 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2908 SLIB_INSTALL_LINKS=
2909 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2910 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2911 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2912 objformat="win32"
2913 dlltool="${cross_prefix}dlltool"
2914 ranlib=:
2915 enable dos_paths
2916 add_cppflags -U__STRICT_ANSI__
2917 ;;
2918 win32|win64)
2919 if enabled shared; then
2920 # Link to the import library instead of the normal static library
2921 # for shared libs.
2922 LD_LIB='%.lib'
2923 # Cannot build shared and static libraries at the same time with
2924 # MSVC.
2925 disable static
2926 fi
2927 shlibdir_default="$bindir_default"
2928 SLIBPREF=""
2929 SLIBSUF=".dll"
2930 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2931 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2932 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
2933 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2934 SLIB_INSTALL_LINKS=
2935 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2936 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2937 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2938 objformat="win32"
2939 ranlib=:
2940 enable dos_paths
2941 ;;
2942 cygwin*)
2943 target_os=cygwin
2944 shlibdir_default="$bindir_default"
2945 SLIBPREF="cyg"
2946 SLIBSUF=".dll"
2947 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2948 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2949 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2950 SLIB_INSTALL_LINKS=
2951 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2952 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2953 objformat="win32"
2954 enable dos_paths
2955 ;;
2956 *-dos|freedos|opendos)
2957 network_extralibs="-lsocket"
2958 objformat="coff"
2959 enable dos_paths
2960 add_cppflags -U__STRICT_ANSI__
2961 ;;
2962 linux)
2963 enable dv1394
2964 ;;
2965 irix*)
2966 target_os=irix
2967 ranlib="echo ignoring ranlib"
2968 ;;
2969 os/2*)
2970 ln_s="cp -f"
2971 objformat="aout"
2972 add_cppflags -D_GNU_SOURCE
2973 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2974 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2975 AVSERVERLDFLAGS=""
2976 LIBSUF="_s.a"
2977 SLIBPREF=""
2978 SLIBSUF=".dll"
2979 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2980 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2981 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2982 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2983 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2984 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2985 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2986 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2987 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2988 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2989 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2990 enable dos_paths
2991 ;;
2992 gnu/kfreebsd)
2993 add_cppflags -D_BSD_SOURCE
2994 ;;
2995 gnu)
2996 ;;
2997 qnx)
2998 add_cppflags -D_QNX_SOURCE
2999 network_extralibs="-lsocket"
3000 ;;
3001 symbian)
3002 SLIBSUF=".dll"
3003 enable dos_paths
3004 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3005 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3006 add_ldflags -Wl,--target1-abs,--no-undefined \
3007 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3008 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3009 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3010 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3011 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3012 ;;
3013 osf1)
3014 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3015 AVSERVERLDFLAGS=
3016 ;;
3017 minix)
3018 ;;
3019 plan9)
3020 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3021 -D_REENTRANT_SOURCE \
3022 -D_RESEARCH_SOURCE \
3023 -DFD_SETSIZE=96 \
3024 -DHAVE_SOCK_OPTS
3025 add_compat strtod.o strtod=avpriv_strtod
3026 network_extralibs='-lbsd'
3027 exeobjs=compat/plan9/main.o
3028 disable avserver
3029 ln_s='ln -s -f'
3030 cp_f='cp'
3031 ;;
3032 none)
3033 ;;
3034 *)
3035 die "Unknown OS '$target_os'."
3036 ;;
3037 esac
3038
3039 # determine libc flavour
3040
3041 if check_cpp_condition features.h "defined __UCLIBC__"; then
3042 libc_type=uclibc
3043 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3044 elif check_cpp_condition features.h "defined __GLIBC__"; then
3045 libc_type=glibc
3046 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3047 elif check_header _mingw.h; then
3048 libc_type=mingw
3049 check_cpp_condition _mingw.h \
3050 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3051 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3052 die "ERROR: MinGW runtime version must be >= 3.15."
3053 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3054 libc_type=newlib
3055 add_cppflags -U__STRICT_ANSI__
3056 elif check_func_headers stdlib.h _get_doserrno; then
3057 libc_type=msvcrt
3058 add_compat strtod.o strtod=avpriv_strtod
3059 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3060 _snprintf=avpriv_snprintf \
3061 vsnprintf=avpriv_vsnprintf
3062 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3063 libc_type=klibc
3064 fi
3065
3066 test -n "$libc_type" && enable $libc_type
3067
3068 # hacks for compiler/libc/os combinations
3069
3070 if enabled_all tms470 glibc; then
3071 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3072 add_cppflags -D__USER_LABEL_PREFIX__=
3073 add_cppflags -D__builtin_memset=memset
3074 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3075 add_cflags -pds=48 # incompatible redefinition of macro
3076 fi
3077
3078 if enabled_all ccc glibc; then
3079 add_ldflags -Wl,-z,now # calls to libots crash without this
3080 fi
3081
3082 esc(){
3083 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3084 }
3085
3086 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3087
3088 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3089
3090 set_default $PATHS_LIST
3091 set_default nm
3092
3093 # we need to build at least one lib type
3094 if ! enabled_any static shared; then
3095 cat <<EOF
3096 At least one library type must be built.
3097 Specify --enable-static to build the static libraries or --enable-shared to
3098 build the shared libraries as well. To only build the shared libraries specify
3099 --disable-static in addition to --enable-shared.
3100 EOF
3101 exit 1;
3102 fi
3103
3104 die_license_disabled() {
3105 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3106 }
3107
3108 die_license_disabled gpl libcdio
3109 die_license_disabled gpl libx264
3110 die_license_disabled gpl libxavs
3111 die_license_disabled gpl libxvid
3112 die_license_disabled gpl x11grab
3113
3114 die_license_disabled nonfree libfaac
3115 die_license_disabled nonfree libfdk_aac
3116 die_license_disabled nonfree openssl
3117
3118 die_license_disabled version3 libopencore_amrnb
3119 die_license_disabled version3 libopencore_amrwb
3120 die_license_disabled version3 libvo_aacenc
3121 die_license_disabled version3 libvo_amrwbenc
3122
3123 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3124
3125 disabled optimizations || check_cflags -fomit-frame-pointer
3126
3127 enable_pic() {
3128 enable pic
3129 add_cppflags -DPIC
3130 add_cflags -fPIC
3131 add_asflags -fPIC
3132 }
3133
3134 enabled pic && enable_pic
3135
3136 check_cc <<EOF || die "Symbol mangling check failed."
3137 int ff_extern;
3138 EOF
3139 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3140 extern_prefix=${sym%%ff_extern*}
3141
3142 check_cc <<EOF && enable_weak inline_asm
3143 void foo(void) { __asm__ volatile ("" ::); }
3144 EOF
3145
3146 _restrict=
3147 for restrict_keyword in restrict __restrict__ __restrict; do
3148 check_cc <<EOF && _restrict=$restrict_keyword && break
3149 void foo(char * $restrict_keyword p);
3150 EOF
3151 done
3152
3153 check_cc <<EOF && enable attribute_packed
3154 struct { int x; } __attribute__((packed)) x;
3155 EOF
3156
3157 check_cc <<EOF && enable attribute_may_alias
3158 union { int x; } __attribute__((may_alias)) x;
3159 EOF
3160
3161 check_cc <<EOF || die "endian test failed"
3162 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3163 EOF
3164 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3165
3166 if enabled alpha; then
3167
3168 check_cflags -mieee
3169
3170 elif enabled arm; then
3171
3172 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3173 enabled thumb && check_cflags -mthumb || check_cflags -marm
3174 nogas=die
3175
3176 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3177 enable vfp_args
3178 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3179 case "${cross_prefix:-$cc}" in
3180 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3181 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3182 __asm__ (".eabi_attribute 28, 1");
3183 int main(void) { return 0; }
3184 EOF
3185 esac
3186 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3187 fi
3188
3189 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3190 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3191 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3192 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3193 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3194 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3195
3196 [ $target_os = linux ] ||
3197 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3198 $ARCH_EXT_LIST_ARM
3199
3200 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3201 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3202
3203 enabled_all armv6t2 shared !pic && enable_pic
3204
3205 elif enabled mips; then
3206
3207 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3208
3209 elif enabled parisc; then
3210
3211 if enabled gcc; then
3212 case $($cc -dumpversion) in
3213 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3214 esac
3215 fi
3216
3217 elif enabled ppc; then
3218
3219 enable local_aligned_8 local_aligned_16
3220
3221 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3222 check_inline_asm ibm_asm '"add 0, 0, 0"'
3223 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3224 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3225
3226 # AltiVec flags: The FSF version of GCC differs from the Apple version
3227 if enabled altivec; then
3228 nogas=warn
3229 check_cflags -maltivec -mabi=altivec &&
3230 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3231 check_cflags -faltivec
3232
3233 # check if our compiler supports Motorola AltiVec C API
3234 check_cc <<EOF || disable altivec
3235 $inc_altivec_h
3236 int main(void) {
3237 vector signed int v1 = (vector signed int) { 0 };
3238 vector signed int v2 = (vector signed int) { 1 };
3239 v1 = vec_add(v1, v2);
3240 return 0;
3241 }
3242 EOF
3243
3244 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3245 fi
3246
3247 elif enabled sparc; then
3248
3249 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3250
3251 elif enabled x86; then
3252
3253 check_code ld intrin.h "__rdtsc()" && enable rdtsc
3254
3255 check_code ld mmintrin.h "_mm_empty()" && enable mm_empty
3256
3257 enable local_aligned_8 local_aligned_16
3258
3259 # check whether EBP is available on x86
3260 # As 'i' is stored on the stack, this program will crash
3261 # if the base pointer is used to access it because the
3262 # base pointer is cleared in the inline assembly code.
3263 check_exec_crash <<EOF && enable ebp_available
3264 volatile int i=0;
3265 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3266 return i;
3267 EOF
3268
3269 # check whether EBX is available on x86
3270 check_inline_asm ebx_available '""::"b"(0)' &&
3271 check_inline_asm ebx_available '"":::"%ebx"'
3272
3273 # check whether xmm clobbers are supported
3274 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3275
3276 # check whether binutils is new enough to compile SSSE3/MMXEXT
3277 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3278 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3279
3280 if ! disabled_any asm mmx yasm; then
3281 if check_cmd $yasmexe --version; then
3282 enabled x86_64 && yasm_extra="-m amd64"
3283 yasm_debug="-g dwarf2"
3284 elif check_cmd nasm -v; then
3285 yasmexe=nasm
3286 yasm_debug="-g -F dwarf"
3287 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3288 fi
3289
3290 YASMFLAGS="-f $objformat $yasm_extra"
3291 enabled pic && append YASMFLAGS "-DPIC"
3292 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3293 case "$objformat" in
3294 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3295 esac
3296
3297 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3298 die "yasm not found, use --disable-yasm for a crippled build"
3299 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3300 check_yasm "CPU amdnop" && enable cpunop
3301 fi
3302
3303 case "$cpu" in
3304 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3305 disable fast_clz
3306 ;;
3307 esac
3308
3309 fi
3310
3311 if enabled asm; then
3312 as=${gas:=$as}
3313 check_as <<EOF && enable gnu_as || \
3314 $nogas "GNU assembler not found, install gas-preprocessor"
3315 .macro m n
3316 \n: .int 0
3317 .endm
3318 m x
3319 EOF
3320 fi
3321
3322 check_ldflags -Wl,--as-needed
3323
3324 if check_func dlopen; then
3325 ldl=
3326 elif check_func dlopen -ldl; then
3327 ldl=-ldl
3328 fi
3329
3330 if ! disabled network; then
3331 check_type "sys/types.h sys/socket.h" socklen_t
3332 check_type netdb.h "struct addrinfo"
3333 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3334 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3335 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3336 check_type netinet/in.h "struct sockaddr_in6"
3337 check_type poll.h "struct pollfd"
3338 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3339 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3340 check_type netinet/sctp.h "struct sctp_event_subscribe"
3341 check_func getaddrinfo $network_extralibs
3342 check_func getservbyport $network_extralibs
3343 # Prefer arpa/inet.h over winsock2
3344 if check_header arpa/inet.h ; then
3345 check_func closesocket
3346 elif check_header winsock2.h ; then
3347 check_func_headers winsock2.h closesocket -lws2 &&
3348 network_extralibs="-lws2" ||
3349 { check_func_headers winsock2.h closesocket -lws2_32 &&
3350 network_extralibs="-lws2_32"; }
3351 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3352 check_type ws2tcpip.h socklen_t
3353 check_type ws2tcpip.h "struct addrinfo"
3354 check_type ws2tcpip.h "struct group_source_req"
3355 check_type ws2tcpip.h "struct ip_mreq_source"
3356 check_type ws2tcpip.h "struct ipv6_mreq"
3357 check_type winsock2.h "struct pollfd"
3358 check_type ws2tcpip.h "struct sockaddr_in6"
3359 check_type ws2tcpip.h "struct sockaddr_storage"
3360 check_struct winsock2.h "struct sockaddr" sa_len
3361 else
3362 disable network
3363 fi
3364 fi
3365
3366 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3367 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3368
3369 check_func fcntl
3370 check_func fork
3371 check_func gethrtime
3372 check_func getopt
3373 check_func getrusage
3374 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3375 check_func gettimeofday
3376 check_func inet_aton $network_extralibs
3377 check_func isatty
3378 check_func localtime_r
3379 check_func ${malloc_prefix}memalign && enable memalign
3380 check_func mkstemp
3381 check_func mmap
3382 check_func mprotect
3383 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3384 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3385 check_func setrlimit
3386 check_func strerror_r
3387 check_func strptime
3388 check_func strtok_r
3389 check_func sched_getaffinity
3390 check_func sysconf
3391 check_func sysctl
3392 check_func usleep
3393 check_func_headers io.h setmode
3394 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3395 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3396 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3397 check_func_headers windows.h GetProcessAffinityMask
3398 check_func_headers windows.h GetProcessTimes
3399 check_func_headers windows.h GetSystemTimeAsFileTime
3400 check_func_headers windows.h MapViewOfFile
3401 check_func_headers windows.h SetConsoleTextAttribute
3402 check_func_headers windows.h Sleep
3403 check_func_headers windows.h VirtualAlloc
3404
3405 check_header direct.h
3406 check_header dlfcn.h
3407 check_header dxva.h
3408 check_header dxva2api.h
3409 check_header io.h
3410 check_header malloc.h
3411 check_header poll.h
3412 check_header sys/mman.h
3413 check_header sys/param.h
3414 check_header sys/resource.h
3415 check_header sys/select.h
3416 check_header sys/time.h
3417 check_header unistd.h
3418 check_header vdpau/vdpau.h
3419 check_header vdpau/vdpau_x11.h
3420 check_header windows.h
3421 check_header X11/extensions/XvMClib.h
3422
3423 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3424 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3425
3426 if ! disabled w32threads && ! enabled pthreads; then
3427 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3428 fi
3429
3430 # check for some common methods of building with pthread support
3431 # do this before the optional library checks as some of them require pthreads
3432 if ! disabled pthreads && ! enabled w32threads; then
3433 enable pthreads
3434 if check_func pthread_create; then
3435 :
3436 elif check_func pthread_create -pthread; then
3437 add_cflags -pthread
3438 add_extralibs -pthread
3439 elif check_func pthread_create -pthreads; then
3440 add_cflags -pthreads
3441 add_extralibs -pthreads
3442 elif check_func pthread_create -lpthreadGC2; then
3443 add_extralibs -lpthreadGC2
3444 elif ! check_lib pthread.h pthread_create -lpthread; then
3445 disable pthreads
3446 fi
3447 fi
3448
3449 for thread in $THREADS_LIST; do
3450 if enabled $thread; then
3451 test -n "$thread_type" &&
3452 die "ERROR: Only one thread type must be selected." ||
3453 thread_type="$thread"
3454 fi
3455 done
3456
3457 check_lib math.h sin -lm && LIBM="-lm"
3458 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3459
3460 atan2f_args=2
3461 ldexpf_args=2
3462 powf_args=2
3463
3464 for func in $MATH_FUNCS; do
3465 eval check_mathfunc $func \${${func}_args:-1}
3466 done
3467
3468 # these are off by default, so fail if requested and not available
3469 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3470 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3471 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3472 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3473 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3474 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3475 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
3476 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3477 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3478 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3479 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3480 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3481 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3482 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3483 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3484 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3485 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3486 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3487 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3488 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3489 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3490 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3491 enabled libvpx && {
3492 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3493 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3494 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3495 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3496 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3497 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3498 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3499 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3500 die "ERROR: libx264 version must be >= 0.118."; }
3501 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3502 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3503 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3504 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3505 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3506 die "ERROR: openssl not found"; }
3507
3508 if enabled gnutls; then
3509 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3510 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3511 fi
3512
3513 # libdc1394 check
3514 if enabled libdc1394; then
3515 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3516 enable libdc1394_2; } ||
3517 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3518 enable libdc1394_1; } ||
3519 die "ERROR: No version of libdc1394 found "
3520 fi
3521
3522 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3523 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3524 enable sdl &&
3525 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3526 fi
3527
3528 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3529
3530 check_header linux/fb.h
3531 check_header linux/videodev2.h
3532 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3533
3534 check_header sys/videoio.h
3535
3536 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3537 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3538 # w32api 3.12 had it defined wrong
3539 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3540
3541 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3542 { check_header dev/bktr/ioctl_meteor.h &&
3543 check_header dev/bktr/ioctl_bt848.h; } ||
3544 { check_header machine/ioctl_meteor.h &&
3545 check_header machine/ioctl_bt848.h; } ||
3546 { check_header dev/video/meteor/ioctl_meteor.h &&
3547 check_header dev/video/bktr/ioctl_bt848.h; } ||
3548 check_header dev/ic/bt8xx.h
3549
3550 check_header sndio.h
3551 check_header sys/soundcard.h
3552 check_header soundcard.h
3553
3554 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3555
3556 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3557 check_func jack_port_get_latency_range -ljack
3558
3559 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3560
3561 enabled libcdio &&
3562 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3563
3564 enabled x11grab &&
3565 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3566 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3567 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3568
3569 # check for VDA header
3570 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3571 enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3572 fi
3573
3574 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3575 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3576 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3577 fi
3578
3579 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3580
3581 # add some useful compiler flags if supported
3582 check_cflags -Wdeclaration-after-statement
3583 check_cflags -Wall
3584 check_cflags -Wno-parentheses
3585 check_cflags -Wno-switch
3586 check_cflags -Wno-format-zero-length
3587 check_cflags -Wdisabled-optimization
3588 check_cflags -Wpointer-arith
3589 check_cflags -Wredundant-decls
3590 check_cflags -Wno-pointer-sign
3591 check_cflags -Wcast-qual
3592 check_cflags -Wwrite-strings
3593 check_cflags -Wtype-limits
3594 check_cflags -Wundef
3595 check_cflags -Wmissing-prototypes
3596 check_cflags -Wstrict-prototypes
3597 enabled extra_warnings && check_cflags -Winline
3598
3599 # add some linker flags
3600 check_ldflags -Wl,--warn-common
3601 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3602 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3603
3604 enabled xmm_clobber_test &&
3605 check_ldflags -Wl,--wrap,avcodec_open2 \
3606 -Wl,--wrap,avcodec_decode_audio4 \
3607 -Wl,--wrap,avcodec_decode_video2 \
3608 -Wl,--wrap,avcodec_decode_subtitle2 \
3609 -Wl,--wrap,avcodec_encode_audio2 \
3610 -Wl,--wrap,avcodec_encode_video \
3611 -Wl,--wrap,avcodec_encode_subtitle \
3612 -Wl,--wrap,sws_scale ||
3613 disable xmm_clobber_test
3614
3615 echo "X{};" > $TMPV
3616 if test_ldflags -Wl,--version-script,$TMPV; then
3617 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3618 check_cc <<EOF && enable symver_asm_label
3619 void ff_foo(void) __asm__ ("av_foo@VERSION");
3620 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3621 EOF
3622 check_cc <<EOF && enable symver_gnu_asm
3623 __asm__(".symver ff_foo,av_foo@VERSION");
3624 void ff_foo(void) {}
3625 EOF
3626 fi
3627
3628 if [ -z "$optflags" ]; then
3629 if enabled small; then
3630 optflags=$cflags_size
3631 elif enabled optimizations; then
3632 optflags=$cflags_speed
3633 else
3634 optflags=$cflags_noopt
3635 fi
3636 fi
3637
3638 check_optflags(){
3639 check_cflags "$@"
3640 enabled lto && check_ldflags "$@"
3641 }
3642
3643
3644 if enabled lto; then
3645 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3646 check_cflags -flto
3647 check_ldflags -flto $cpuflags
3648 fi
3649
3650 check_optflags $optflags
3651 check_optflags -fno-math-errno
3652 check_optflags -fno-signed-zeros
3653
3654 if enabled icc; then
3655 # Just warnings, no remarks
3656 check_cflags -w1
3657 # -wd: Disable following warnings
3658 # 144, 167, 556: -Wno-pointer-sign
3659 # 1292: attribute "foo" ignored
3660 # 1419: external declaration in primary source file
3661 # 10006: ignoring unknown option -fno-signed-zeros
3662 # 10148: ignoring unknown option -Wno-parentheses
3663 # 10156: ignoring option '-W'; no argument required
3664 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3665 # 11030: Warning unknown option --as-needed
3666 # 10156: ignoring option '-export'; no argument required
3667 check_ldflags -wd10156,11030
3668 # Allow to compile with optimizations
3669 check_ldflags -march=$cpu
3670 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3671 enable ebp_available
3672 if enabled x86_32; then
3673 icc_version=$($cc -dumpversion)
3674 test ${icc_version%%.*} -ge 11 &&
3675 check_cflags -falign-stack=maintain-16-byte ||
3676 disable aligned_stack
3677 fi
3678 elif enabled ccc; then
3679 # disable some annoying warnings
3680 add_cflags -msg_disable bitnotint
3681 add_cflags -msg_disable mixfuncvoid
3682 add_cflags -msg_disable nonstandcast
3683 add_cflags -msg_disable unsupieee
3684 elif enabled gcc; then
3685 check_optflags -fno-tree-vectorize
3686 check_cflags -Werror=implicit-function-declaration
3687 check_cflags -Werror=missing-prototypes
3688 check_cflags -Werror=return-type
3689 check_cflags -Werror=declaration-after-statement
3690 check_cflags -Werror