configure: sort cpuflags section by architecture
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --libdir=DIR install libs in DIR [PREFIX/lib]
85 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
86 --incdir=DIR install includes in DIR [PREFIX/include]
87 --mandir=DIR install man page in DIR [PREFIX/share/man]
88
89 Licensing options:
90 --enable-gpl allow use of GPL code, the resulting libs
91 and binaries will be under GPL [no]
92 --enable-version3 upgrade (L)GPL to version 3 [no]
93 --enable-nonfree allow use of nonfree code, the resulting libs
94 and binaries will be unredistributable [no]
95
96 Configuration options:
97 --disable-static do not build static libraries [no]
98 --enable-shared build shared libraries [no]
99 --enable-small optimize for size instead of speed
100 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
101 --enable-gray enable full grayscale support (slower color)
102 --disable-swscale-alpha disable alpha channel support in swscale
103
104 Program options:
105 --disable-programs do not build command line programs
106 --disable-avconv disable avconv build
107 --disable-avplay disable avplay build
108 --disable-avprobe disable avprobe build
109 --disable-avserver disable avserver build
110
111 Component options:
112 --disable-doc do not build documentation
113 --disable-avdevice disable libavdevice build
114 --disable-avcodec disable libavcodec build
115 --disable-avformat disable libavformat build
116 --disable-swscale disable libswscale build
117 --disable-avfilter disable video filter support [no]
118 --disable-avresample disable libavresample build [no]
119 --disable-pthreads disable pthreads [auto]
120 --disable-w32threads disable Win32 threads [auto]
121 --enable-x11grab enable X11 grabbing [no]
122 --disable-network disable network support [no]
123 --disable-dct disable DCT code
124 --disable-dwt disable DWT code
125 --disable-lsp disable LSP code
126 --disable-lzo disable LZO decoder code
127 --disable-mdct disable MDCT code
128 --disable-rdft disable RDFT code
129 --disable-fft disable FFT code
130 --enable-dxva2 enable DXVA2 code
131 --enable-vaapi enable VAAPI code
132 --enable-vda enable VDA code
133 --enable-vdpau enable VDPAU code
134
135 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173 --enable-avisynth enable reading of AVISynth script files [no]
174 --enable-bzlib enable bzlib [autodetect]
175 --enable-frei0r enable frei0r video filtering
176 --enable-gnutls enable gnutls [no]
177 --enable-libcdio enable audio CD grabbing with libcdio
178 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
179 and libraw1394 [no]
180 --enable-libfaac enable AAC encoding via libfaac [no]
181 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
182 --enable-libfreetype enable libfreetype [no]
183 --enable-libgsm enable GSM de/encoding via libgsm [no]
184 --enable-libilbc enable iLBC de/encoding via libilbc [no]
185 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
186 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
187 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
188 --enable-libopencv enable video filtering via libopencv [no]
189 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
190 --enable-libopus enable Opus decoding via libopus [no]
191 --enable-libpulse enable Pulseaudio input via libpulse [no]
192 --enable-librtmp enable RTMP[E] support via librtmp [no]
193 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
194 --enable-libspeex enable Speex de/encoding via libspeex [no]
195 --enable-libtheora enable Theora encoding via libtheora [no]
196 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
197 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
198 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
199 --enable-libvpx enable VP8 de/encoding via libvpx [no]
200 --enable-libx264 enable H.264 encoding via x264 [no]
201 --enable-libxavs enable AVS encoding via xavs [no]
202 --enable-libxvid enable Xvid encoding via xvidcore,
203 native MPEG-4/Xvid encoder exists [no]
204 --enable-openssl enable openssl [no]
205 --enable-zlib enable zlib [autodetect]
206
207 Advanced options (experts only):
208 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
209 --enable-cross-compile assume a cross-compiler is used
210 --sysroot=PATH root of cross-build tree
211 --sysinclude=PATH location of cross-build system headers
212 --target-os=OS compiler targets OS [$target_os]
213 --target-exec=CMD command to run executables on target
214 --target-path=DIR path to view of build directory on target
215 --toolchain=NAME set tool defaults according to NAME
216 --nm=NM use nm tool
217 --ar=AR use archive tool AR [$ar_default]
218 --as=AS use assembler AS [$as_default]
219 --cc=CC use C compiler CC [$cc_default]
220 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
221 --ld=LD use linker LD
222 --host-cc=HOSTCC use host C compiler HOSTCC
223 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
224 --host-ld=HOSTLD use host linker HOSTLD
225 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
226 --host-libs=HLIBS use libs HLIBS when linking for host
227 --host-os=OS compiler host OS [$target_os]
228 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
229 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
230 --extra-libs=ELIBS add ELIBS [$ELIBS]
231 --extra-version=STRING version string suffix []
232 --optflags=OPTFLAGS override optimization-related compiler flags
233 --build-suffix=SUFFIX library name suffix []
234 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
235 --arch=ARCH select architecture [$arch]
236 --cpu=CPU select the minimum required CPU (affects
237 instruction selection, may crash on older CPUs)
238 --enable-pic build position-independent code
239 --enable-sram allow use of on-chip SRAM
240 --enable-thumb compile for Thumb instruction set
241 --disable-symver disable symbol versioning
242 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
243 --disable-safe-bitstream-reader
244 disable buffer boundary checking in bitreaders
245 (faster, but may crash)
246 --enable-memalign-hack emulate memalign, interferes with memory debuggers
247 --enable-lto use link-time optimization
248
249 Optimization options (experts only):
250 --disable-asm disable all assembler optimizations
251 --disable-altivec disable AltiVec optimizations
252 --disable-amd3dnow disable 3DNow! optimizations
253 --disable-amd3dnowext disable 3DNow! extended optimizations
254 --disable-mmx disable MMX optimizations
255 --disable-mmxext disable MMXEXT optimizations
256 --disable-sse disable SSE optimizations
257 --disable-sse2 disable SSE2 optimizations
258 --disable-sse3 disable SSE3 optimizations
259 --disable-ssse3 disable SSSE3 optimizations
260 --disable-sse4 disable SSE4 optimizations
261 --disable-sse42 disable SSE4.2 optimizations
262 --disable-avx disable AVX optimizations
263 --disable-fma4 disable FMA4 optimizations
264 --disable-armv5te disable armv5te optimizations
265 --disable-armv6 disable armv6 optimizations
266 --disable-armv6t2 disable armv6t2 optimizations
267 --disable-armvfp disable ARM VFP optimizations
268 --disable-neon disable NEON optimizations
269 --disable-vis disable VIS optimizations
270 --disable-inline-asm disable use of inline assembler
271 --disable-yasm disable use of yasm assembler
272
273 Developer options (useful when working on Libav itself):
274 --disable-debug disable debugging symbols
275 --enable-debug=LEVEL set the debug level [$debuglevel]
276 --disable-optimizations disable compiler optimizations
277 --enable-extra-warnings enable more compiler warnings
278 --samples=PATH location of test samples for FATE, if not set use
279 \$LIBAV_SAMPLES at make invocation time.
280 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
281 should be used only for debugging purposes)
282 --enable-random randomly enable/disable components
283 --disable-random
284 --enable-random=LIST randomly enable/disable specific components or
285 --disable-random=LIST component groups. LIST is a comma-separated list
286 of NAME[:PROB] entries where NAME is a component
287 (group) and PROB the probability associated with
288 NAME (default 0.5).
289 --random-seed=VALUE seed value for --enable/disable-random
290
291 NOTE: Object files are built at the place where configure is launched.
292 EOF
293 exit 0
294 }
295
296 quotes='""'
297
298 log(){
299 echo "$@" >> $logfile
300 }
301
302 log_file(){
303 log BEGIN $1
304 pr -n -t $1 >> $logfile
305 log END $1
306 }
307
308 echolog(){
309 log "$@"
310 echo "$@"
311 }
312
313 warn(){
314 log "WARNING: $*"
315 WARNINGS="${WARNINGS}WARNING: $*\n"
316 }
317
318 die(){
319 echolog "$@"
320 cat <<EOF
321
322 If you think configure made a mistake, make sure you are using the latest
323 version from Git. If the latest version fails, report the problem to the
324 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
325 EOF
326 if disabled logging; then
327 cat <<EOF
328 Rerun configure with logging enabled (do not use --disable-logging), and
329 include the log this produces with your report.
330 EOF
331 else
332 cat <<EOF
333 Include the log file "$logfile" produced by configure as this will help
334 solving the problem.
335 EOF
336 fi
337 exit 1
338 }
339
340 # Avoid locale weirdness, besides we really just want to translate ASCII.
341 toupper(){
342 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
343 }
344
345 tolower(){
346 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
347 }
348
349 c_escape(){
350 echo "$*" | sed 's/["\\]/\\\0/g'
351 }
352
353 sh_quote(){
354 v=$(echo "$1" | sed "s/'/'\\\\''/g")
355 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
356 echo "$v"
357 }
358
359 cleanws(){
360 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
361 }
362
363 filter(){
364 pat=$1
365 shift
366 for v; do
367 eval "case $v in $pat) echo $v ;; esac"
368 done
369 }
370
371 filter_out(){
372 pat=$1
373 shift
374 for v; do
375 eval "case $v in $pat) ;; *) echo $v ;; esac"
376 done
377 }
378
379 map(){
380 m=$1
381 shift
382 for v; do eval $m; done
383 }
384
385 add_suffix(){
386 suffix=$1
387 shift
388 for v; do echo ${v}${suffix}; done
389 }
390
391 set_all(){
392 value=$1
393 shift
394 for var in $*; do
395 eval $var=$value
396 done
397 }
398
399 set_weak(){
400 value=$1
401 shift
402 for var; do
403 eval : \${$var:=$value}
404 done
405 }
406
407 set_safe(){
408 var=$1
409 shift
410 eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
411 }
412
413 get_safe(){
414 eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
415 }
416
417 pushvar(){
418 for var in $*; do
419 eval level=\${${var}_level:=0}
420 eval ${var}_${level}="\$$var"
421 eval ${var}_level=$(($level+1))
422 done
423 }
424
425 popvar(){
426 for var in $*; do
427 eval level=\${${var}_level:-0}
428 test $level = 0 && continue
429 eval level=$(($level-1))
430 eval $var="\${${var}_${level}}"
431 eval ${var}_level=$level
432 eval unset ${var}_${level}
433 done
434 }
435
436 enable(){
437 set_all yes $*
438 }
439
440 disable(){
441 set_all no $*
442 }
443
444 enable_weak(){
445 set_weak yes $*
446 }
447
448 disable_weak(){
449 set_weak no $*
450 }
451
452 enable_safe(){
453 for var; do
454 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
455 done
456 }
457
458 disable_safe(){
459 for var; do
460 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
461 done
462 }
463
464 do_enable_deep(){
465 for var; do
466 enabled $var && continue
467 eval sel="\$${var}_select"
468 eval sgs="\$${var}_suggest"
469 pushvar var sgs
470 enable_deep $sel
471 popvar sgs
472 enable_deep_weak $sgs
473 popvar var
474 done
475 }
476
477 enable_deep(){
478 do_enable_deep $*
479 enable $*
480 }
481
482 enable_deep_weak(){
483 do_enable_deep $*
484 enable_weak $*
485 }
486
487 enabled(){
488 test "${1#!}" = "$1" && op== || op=!=
489 eval test "x\$${1#!}" $op "xyes"
490 }
491
492 disabled(){
493 test "${1#!}" = "$1" && op== || op=!=
494 eval test "x\$${1#!}" $op "xno"
495 }
496
497 enabled_all(){
498 for opt; do
499 enabled $opt || return 1
500 done
501 }
502
503 disabled_all(){
504 for opt; do
505 disabled $opt || return 1
506 done
507 }
508
509 enabled_any(){
510 for opt; do
511 enabled $opt && return 0
512 done
513 }
514
515 disabled_any(){
516 for opt; do
517 disabled $opt && return 0
518 done
519 return 1
520 }
521
522 set_default(){
523 for opt; do
524 eval : \${$opt:=\$${opt}_default}
525 done
526 }
527
528 is_in(){
529 value=$1
530 shift
531 for var in $*; do
532 [ $var = $value ] && return 0
533 done
534 return 1
535 }
536
537 check_deps(){
538 for cfg; do
539 cfg="${cfg#!}"
540 enabled ${cfg}_checking && die "Circular dependency for $cfg."
541 disabled ${cfg}_checking && continue
542 enable ${cfg}_checking
543
544 eval dep_all="\$${cfg}_deps"
545 eval dep_any="\$${cfg}_deps_any"
546 eval dep_sel="\$${cfg}_select"
547 eval dep_sgs="\$${cfg}_suggest"
548 eval dep_ifa="\$${cfg}_if"
549 eval dep_ifn="\$${cfg}_if_any"
550
551 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
552 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
553 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
554
555 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
556 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
557 enabled_all $dep_all || disable $cfg
558 enabled_any $dep_any || disable $cfg
559 disabled_any $dep_sel && disable $cfg
560
561 if enabled $cfg; then
562 eval dep_extralibs="\$${cfg}_extralibs"
563 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
564 enable_deep $dep_sel
565 enable_deep_weak $dep_sgs
566 fi
567
568 disable ${cfg}_checking
569 done
570 }
571
572 print_config(){
573 pfx=$1
574 files=$2
575 shift 2
576 map 'eval echo "$v \${$v:-no}"' "$@" |
577 awk "BEGIN { split(\"$files\", files) }
578 {
579 c = \"$pfx\" toupper(\$1);
580 v = \$2;
581 sub(/yes/, 1, v);
582 sub(/no/, 0, v);
583 for (f in files) {
584 file = files[f];
585 if (file ~ /\\.h\$/) {
586 printf(\"#define %s %d\\n\", c, v) >>file;
587 } else if (file ~ /\\.asm\$/) {
588 printf(\"%%define %s %d\\n\", c, v) >>file;
589 } else if (file ~ /\\.mak\$/) {
590 n = -v ? \"\" : \"!\";
591 printf(\"%s%s=yes\\n\", n, c) >>file;
592 }
593 }
594 }"
595 }
596
597 print_enabled(){
598 suf=$1
599 shift
600 for v; do
601 enabled $v && printf "%s\n" ${v%$suf};
602 done
603 }
604
605 append(){
606 var=$1
607 shift
608 eval "$var=\"\$$var $*\""
609 }
610
611 prepend(){
612 var=$1
613 shift
614 eval "$var=\"$* \$$var\""
615 }
616
617 add_cppflags(){
618 append CPPFLAGS "$@"
619 }
620
621 add_cflags(){
622 append CFLAGS $($cflags_filter "$@")
623 }
624
625 add_asflags(){
626 append ASFLAGS $($asflags_filter "$@")
627 }
628
629 add_ldflags(){
630 append LDFLAGS $($ldflags_filter "$@")
631 }
632
633 add_extralibs(){
634 prepend extralibs $($ldflags_filter "$@")
635 }
636
637 add_host_cflags(){
638 append host_cflags $($host_cflags_filter "$@")
639 }
640
641 add_host_ldflags(){
642 append host_ldflags $($host_ldflags_filter "$@")
643 }
644
645 add_compat(){
646 append compat_objs $1
647 shift
648 map 'add_cppflags -D$v' "$@"
649 }
650
651 check_cmd(){
652 log "$@"
653 "$@" >> $logfile 2>&1
654 }
655
656 cc_o(){
657 eval printf '%s\\n' $CC_O
658 }
659
660 cc_e(){
661 eval printf '%s\\n' $CC_E
662 }
663
664 check_cc(){
665 log check_cc "$@"
666 cat > $TMPC
667 log_file $TMPC
668 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
669 }
670
671 check_cpp(){
672 log check_cpp "$@"
673 cat > $TMPC
674 log_file $TMPC
675 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
676 }
677
678 as_o(){
679 eval printf '%s\\n' $AS_O
680 }
681
682 check_as(){
683 log check_as "$@"
684 cat > $TMPC
685 log_file $TMPC
686 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
687 }
688
689 check_inline_asm(){
690 log check_inline_asm "$@"
691 name="$1"
692 code="$2"
693 shift 2
694 disable $name
695 check_as "$@" <<EOF && enable $name
696 void foo(void){ __asm__ volatile($code); }
697 EOF
698 }
699
700 check_yasm(){
701 log check_yasm "$@"
702 echo "$1" > $TMPS
703 log_file $TMPS
704 shift 1
705 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
706 }
707
708 ld_o(){
709 eval printf '%s\\n' $LD_O
710 }
711
712 check_ld(){
713 log check_ld "$@"
714 flags=$(filter_out '-l*' "$@")
715 libs=$(filter '-l*' "$@")
716 check_cc $($cflags_filter $flags) || return
717 flags=$($ldflags_filter $flags)
718 libs=$($ldflags_filter $libs)
719 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
720 }
721
722 check_code(){
723 log check_code "$@"
724 check=$1
725 headers=$2
726 code=$3
727 shift 3
728 {
729 for hdr in $headers; do
730 echo "#include <$hdr>"
731 done
732 echo "int main(void) { $code; return 0; }"
733 } | check_$check "$@"
734 }
735
736 check_cppflags(){
737 log check_cppflags "$@"
738 check_cc "$@" <<EOF && append CPPFLAGS "$@"
739 int x;
740 EOF
741 }
742
743 check_cflags(){
744 log check_cflags "$@"
745 set -- $($cflags_filter "$@")
746 check_cc "$@" <<EOF && append CFLAGS "$@"
747 int x;
748 EOF
749 }
750
751 test_ldflags(){
752 log test_ldflags "$@"
753 check_ld "$@" <<EOF
754 int main(void){ return 0; }
755 EOF
756 }
757
758 check_ldflags(){
759 log check_ldflags "$@"
760 test_ldflags "$@" && add_ldflags "$@"
761 }
762
763 check_header(){
764 log check_header "$@"
765 header=$1
766 shift
767 disable_safe $header
768 check_cpp "$@" <<EOF && enable_safe $header
769 #include <$header>
770 int x;
771 EOF
772 }
773
774 check_func(){
775 log check_func "$@"
776 func=$1
777 shift
778 disable $func
779 check_ld "$@" <<EOF && enable $func
780 extern int $func();
781 int main(void){ $func(); }
782 EOF
783 }
784
785 check_mathfunc(){
786 log check_mathfunc "$@"
787 func=$1
788 narg=$2
789 shift 2
790 test $narg = 2 && args="f, g" || args="f"
791 disable $func
792 check_ld "$@" <<EOF && enable $func
793 #include <math.h>
794 float foo(float f, float g) { return $func($args); }
795 int main(void){ return 0; }
796 EOF
797 }
798
799 check_func_headers(){
800 log check_func_headers "$@"
801 headers=$1
802 funcs=$2
803 shift 2
804 {
805 for hdr in $headers; do
806 echo "#include <$hdr>"
807 done
808 for func in $funcs; do
809 echo "long check_$func(void) { return (long) $func; }"
810 done
811 echo "int main(void) { return 0; }"
812 } | check_ld "$@" && enable $funcs && enable_safe $headers
813 }
814
815 check_cpp_condition(){
816 log check_cpp_condition "$@"
817 header=$1
818 condition=$2
819 shift 2
820 check_cpp "$@" <<EOF
821 #include <$header>
822 #if !($condition)
823 #error "unsatisfied condition: $condition"
824 #endif
825 EOF
826 }
827
828 check_lib(){
829 log check_lib "$@"
830 header="$1"
831 func="$2"
832 shift 2
833 check_header $header && check_func $func "$@" && add_extralibs "$@"
834 }
835
836 check_lib2(){
837 log check_lib2 "$@"
838 headers="$1"
839 funcs="$2"
840 shift 2
841 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
842 }
843
844 check_pkg_config(){
845 log check_pkg_config "$@"
846 pkg="$1"
847 headers="$2"
848 funcs="$3"
849 shift 3
850 $pkg_config --exists $pkg || return
851 pkg_cflags=$($pkg_config --cflags $pkg)
852 pkg_libs=$($pkg_config --libs $pkg)
853 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
854 set_safe ${pkg}_cflags $pkg_cflags &&
855 set_safe ${pkg}_libs $pkg_libs
856 }
857
858 check_exec(){
859 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
860 }
861
862 check_exec_crash(){
863 code=$(cat)
864
865 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
866 # are safe but may not be available everywhere. Thus we use
867 # raise(SIGTERM) instead. The check is run in a subshell so we
868 # can redirect the "Terminated" message from the shell. SIGBUS
869 # is not defined by standard C so it is used conditionally.
870
871 (check_exec "$@") >> $logfile 2>&1 <<EOF
872 #include <signal.h>
873 static void sighandler(int sig){
874 raise(SIGTERM);
875 }
876 int foo(void){
877 $code
878 }
879 int main(void){
880 signal(SIGILL, sighandler);
881 signal(SIGFPE, sighandler);
882 signal(SIGSEGV, sighandler);
883 #ifdef SIGBUS
884 signal(SIGBUS, sighandler);
885 #endif
886 foo();
887 }
888 EOF
889 }
890
891 check_type(){
892 log check_type "$@"
893 headers=$1
894 type=$2
895 shift 2
896 disable_safe "$type"
897 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
898 }
899
900 check_struct(){
901 log check_type "$@"
902 headers=$1
903 struct=$2
904 member=$3
905 shift 3
906 disable_safe "${struct}_${member}"
907 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
908 enable_safe "${struct}_${member}"
909 }
910
911 require(){
912 name="$1"
913 header="$2"
914 func="$3"
915 shift 3
916 check_lib $header $func "$@" || die "ERROR: $name not found"
917 }
918
919 require2(){
920 name="$1"
921 headers="$2"
922 func="$3"
923 shift 3
924 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
925 }
926
927 require_pkg_config(){
928 pkg="$1"
929 check_pkg_config "$@" || die "ERROR: $pkg not found"
930 add_cflags $(get_safe ${pkg}_cflags)
931 add_extralibs $(get_safe ${pkg}_libs)
932 }
933
934 hostcc_o(){
935 eval printf '%s\\n' $HOSTCC_O
936 }
937
938 check_host_cc(){
939 log check_host_cc "$@"
940 cat > $TMPC
941 log_file $TMPC
942 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
943 }
944
945 check_host_cflags(){
946 log check_host_cflags "$@"
947 set -- $($host_cflags_filter "$@")
948 check_host_cc "$@" <<EOF && append host_cflags "$@"
949 int x;
950 EOF
951 }
952
953 apply(){
954 file=$1
955 shift
956 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
957 }
958
959 cp_if_changed(){
960 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
961 mkdir -p "$(dirname $2)"
962 $cp_f "$1" "$2"
963 }
964
965 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
966 # system-dependent things.
967
968 COMPONENT_LIST="
969 bsfs
970 decoders
971 demuxers
972 encoders
973 filters
974 hwaccels
975 indevs
976 muxers
977 outdevs
978 parsers
979 protocols
980 "
981
982 PROGRAM_LIST="
983 avconv
984 avplay
985 avprobe
986 avserver
987 "
988
989 CONFIG_LIST="
990 $COMPONENT_LIST
991 $PROGRAM_LIST
992 avcodec
993 avdevice
994 avfilter
995 avformat
996 avresample
997 avisynth
998 bzlib
999 dct
1000 doc
1001 dwt
1002 dxva2
1003 fft
1004 frei0r
1005 gnutls
1006 gpl
1007 gray
1008 hardcoded_tables
1009 libcdio
1010 libdc1394
1011 libfaac
1012 libfdk_aac
1013 libfreetype
1014 libgsm
1015 libilbc
1016 libmp3lame
1017 libopencore_amrnb
1018 libopencore_amrwb
1019 libopencv
1020 libopenjpeg
1021 libopus
1022 libpulse
1023 librtmp
1024 libschroedinger
1025 libspeex
1026 libtheora
1027 libvo_aacenc
1028 libvo_amrwbenc
1029 libvorbis
1030 libvpx
1031 libx264
1032 libxavs
1033 libxvid
1034 lsp
1035 lzo
1036 mdct
1037 memalign_hack
1038 network
1039 nonfree
1040 openssl
1041 pic
1042 rdft
1043 runtime_cpudetect
1044 safe_bitstream_reader
1045 shared
1046 small
1047 sram
1048 static
1049 swscale
1050 swscale_alpha
1051 thumb
1052 vaapi
1053 vda
1054 vdpau
1055 version3
1056 xmm_clobber_test
1057 x11grab
1058 zlib
1059 "
1060
1061 THREADS_LIST='
1062 pthreads
1063 w32threads
1064 '
1065
1066 ARCH_LIST='
1067 aarch64
1068 alpha
1069 arm
1070 avr32
1071 avr32_ap
1072 avr32_uc
1073 bfin
1074 ia64
1075 m68k
1076 mips
1077 mips64
1078 parisc
1079 ppc
1080 ppc64
1081 s390
1082 sh4
1083 sparc
1084 sparc64
1085 tilegx
1086 tilepro
1087 tomi
1088 x86
1089 x86_32
1090 x86_64
1091 '
1092
1093 ARCH_EXT_LIST_X86='
1094 amd3dnow
1095 amd3dnowext
1096 avx
1097 fma4
1098 mmx
1099 mmxext
1100 sse
1101 sse2
1102 sse3
1103 sse4
1104 sse42
1105 ssse3
1106 '
1107
1108 ARCH_EXT_LIST="
1109 $ARCH_EXT_LIST_X86
1110 altivec
1111 armv5te
1112 armv6
1113 armv6t2
1114 armvfp
1115 neon
1116 ppc4xx
1117 vfpv3
1118 vis
1119 "
1120
1121 HAVE_LIST_CMDLINE='
1122 inline_asm
1123 symver
1124 yasm
1125 '
1126
1127 HAVE_LIST_PUB='
1128 bigendian
1129 fast_unaligned
1130 '
1131
1132 MATH_FUNCS="
1133 atanf
1134 atan2f
1135 cbrtf
1136 cosf
1137 exp2
1138 exp2f
1139 expf
1140 isinf
1141 isnan
1142 ldexpf
1143 llrint
1144 llrintf
1145 log2
1146 log2f
1147 log10f
1148 lrint
1149 lrintf
1150 powf
1151 rint
1152 round
1153 roundf
1154 sinf
1155 trunc
1156 truncf
1157 "
1158
1159 HAVE_LIST="
1160 $ARCH_EXT_LIST
1161 $(add_suffix _external $ARCH_EXT_LIST)
1162 $(add_suffix _inline $ARCH_EXT_LIST)
1163 $HAVE_LIST_CMDLINE
1164 $HAVE_LIST_PUB
1165 $THREADS_LIST
1166 $MATH_FUNCS
1167 aligned_malloc
1168 aligned_stack
1169 alsa_asoundlib_h
1170 altivec_h
1171 arpa_inet_h
1172 asm_mod_q
1173 asm_mod_y
1174 attribute_may_alias
1175 attribute_packed
1176 closesocket
1177 cmov
1178 cpunop
1179 CryptGenRandom
1180 dcbzl
1181 dev_bktr_ioctl_bt848_h
1182 dev_bktr_ioctl_meteor_h
1183 dev_ic_bt8xx_h
1184 dev_video_bktr_ioctl_bt848_h
1185 dev_video_meteor_ioctl_meteor_h
1186 direct_h
1187 dlfcn_h
1188 dlopen
1189 dos_paths
1190 dxva_h
1191 ebp_available
1192 ebx_available
1193 fast_64bit
1194 fast_clz
1195 fast_cmov
1196 fcntl
1197 fork
1198 getaddrinfo
1199 gethrtime
1200 getopt
1201 GetProcessAffinityMask
1202 GetProcessMemoryInfo
1203 GetProcessTimes
1204 GetSystemTimeAsFileTime
1205 getrusage
1206 getservbyport
1207 gettimeofday
1208 gnu_as
1209 ibm_asm
1210 inet_aton
1211 io_h
1212 isatty
1213 jack_port_get_latency_range
1214 ldbrx
1215 libdc1394_1
1216 libdc1394_2
1217 local_aligned_16
1218 local_aligned_8
1219 localtime_r
1220 loongson
1221 machine_ioctl_bt848_h
1222 machine_ioctl_meteor_h
1223 malloc_h
1224 MapViewOfFile
1225 memalign
1226 mkstemp
1227 mm_empty
1228 mmap
1229 mprotect
1230 msvcrt
1231 nanosleep
1232 poll_h
1233 posix_memalign
1234 rdtsc
1235 sched_getaffinity
1236 sdl
1237 sdl_video_size
1238 setmode
1239 setrlimit
1240 Sleep
1241 sndio_h
1242 socklen_t
1243 soundcard_h
1244 strerror_r
1245 strptime
1246 strtok_r
1247 struct_addrinfo
1248 struct_group_source_req
1249 struct_ip_mreq_source
1250 struct_ipv6_mreq
1251 struct_pollfd
1252 struct_rusage_ru_maxrss
1253 struct_sockaddr_in6
1254 struct_sockaddr_sa_len
1255 struct_sockaddr_storage
1256 struct_v4l2_frmivalenum_discrete
1257 symver_asm_label
1258 symver_gnu_asm
1259 sysconf
1260 sysctl
1261 sys_mman_h
1262 sys_param_h
1263 sys_resource_h
1264 sys_select_h
1265 sys_soundcard_h
1266 sys_time_h
1267 sys_videoio_h
1268 threads
1269 unistd_h
1270 usleep
1271 vfp_args
1272 VirtualAlloc
1273 windows_h
1274 winsock2_h
1275 xform_asm
1276 xmm_clobbers
1277 "
1278
1279 # options emitted with CONFIG_ prefix but not available on command line
1280 CONFIG_EXTRA="
1281 aandcttables
1282 ac3dsp
1283 avutil
1284 error_resilience
1285 gcrypt
1286 golomb
1287 gplv3
1288 h264chroma
1289 h264dsp
1290 h264pred
1291 h264qpel
1292 huffman
1293 lgplv3
1294 lpc
1295 mpegaudio
1296 mpegaudiodsp
1297 mpegvideo
1298 mpegvideoenc
1299 nettle
1300 rangecoder
1301 rtpdec
1302 sinewin
1303 vp3dsp
1304 "
1305
1306 CMDLINE_SELECT="
1307 $ARCH_EXT_LIST
1308 $CONFIG_LIST
1309 $HAVE_LIST_CMDLINE
1310 $THREADS_LIST
1311 asm
1312 cross_compile
1313 debug
1314 extra_warnings
1315 logging
1316 lto
1317 optimizations
1318 "
1319
1320 PATHS_LIST='
1321 bindir
1322 datadir
1323 incdir
1324 libdir
1325 mandir
1326 prefix
1327 shlibdir
1328 '
1329
1330 CMDLINE_SET="
1331 $PATHS_LIST
1332 ar
1333 arch
1334 as
1335 build_suffix
1336 cc
1337 cpu
1338 cross_prefix
1339 dep_cc
1340 extra_version
1341 host_cc
1342 host_cflags
1343 host_ld
1344 host_ldflags
1345 host_libs
1346 host_os
1347 ld
1348 logfile
1349 malloc_prefix
1350 nm
1351 optflags
1352 pkg_config
1353 random_seed
1354 samples
1355 sysinclude
1356 sysroot
1357 target_exec
1358 target_os
1359 target_path
1360 toolchain
1361 "
1362
1363 CMDLINE_APPEND="
1364 extra_cflags
1365 "
1366
1367 # code dependency declarations
1368
1369 # architecture extensions
1370
1371 armv5te_deps="arm"
1372 armv6_deps="arm"
1373 armv6t2_deps="arm"
1374 armvfp_deps="arm"
1375 neon_deps="arm"
1376 vfpv3_deps="armvfp"
1377
1378 altivec_deps="ppc"
1379 ppc4xx_deps="ppc"
1380
1381 vis_deps="sparc"
1382
1383 x86_64_suggest="cmov fast_cmov"
1384
1385 amd3dnow_deps="mmx"
1386 amd3dnowext_deps="amd3dnow"
1387 mmx_deps="x86"
1388 mmxext_deps="mmx"
1389 sse_deps="mmxext"
1390 sse2_deps="sse"
1391 sse3_deps="sse2"
1392 ssse3_deps="sse3"
1393 sse4_deps="ssse3"
1394 sse42_deps="sse4"
1395 avx_deps="sse42"
1396 fma4_deps="avx"
1397
1398 mmx_external_deps="yasm"
1399 mmx_inline_deps="inline_asm"
1400 mmx_suggest="mmx_external mmx_inline"
1401
1402 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1403 eval dep=\$${ext}_deps
1404 eval ${ext}_external_deps='"${dep}_external"'
1405 eval ${ext}_inline_deps='"${dep}_inline"'
1406 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1407 done
1408
1409 aligned_stack_if_any="ppc x86"
1410 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1411 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1412 fast_unaligned_if_any="armv6 ppc x86"
1413
1414 inline_asm_deps="!tms470"
1415 need_memalign="altivec neon sse"
1416
1417 symver_if_any="symver_asm_label symver_gnu_asm"
1418
1419 log2_deps="!msvcrt"
1420
1421 # subsystems
1422 dct_select="rdft"
1423 mdct_select="fft"
1424 rdft_select="fft"
1425 mpegaudio_select="mpegaudiodsp"
1426 mpegaudiodsp_select="dct"
1427 mpegvideoenc_select="mpegvideo"
1428
1429 # decoders / encoders / hardware accelerators
1430 aac_decoder_select="mdct sinewin"
1431 aac_encoder_select="mdct sinewin"
1432 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1433 ac3_decoder_select="mdct ac3dsp ac3_parser"
1434 ac3_encoder_select="mdct ac3dsp"
1435 ac3_fixed_encoder_select="mdct ac3dsp"
1436 alac_encoder_select="lpc"
1437 amrnb_decoder_select="lsp"
1438 amrwb_decoder_select="lsp"
1439 atrac1_decoder_select="mdct sinewin"
1440 atrac3_decoder_select="mdct"
1441 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1442 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1443 cavs_decoder_select="golomb mpegvideo"
1444 comfortnoise_encoder_select="lpc"
1445 cook_decoder_select="mdct sinewin"
1446 cscd_decoder_select="lzo"
1447 cscd_decoder_suggest="zlib"
1448 dca_decoder_select="mdct"
1449 dnxhd_encoder_select="aandcttables mpegvideoenc"
1450 dxa_decoder_select="zlib"
1451 eac3_decoder_select="ac3_decoder"
1452 eac3_encoder_select="ac3_encoder"
1453 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1454 eatgq_decoder_select="aandcttables"
1455 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1456 ffv1_decoder_select="golomb rangecoder"
1457 ffv1_encoder_select="rangecoder"
1458 ffvhuff_encoder_select="huffman"
1459 flac_decoder_select="golomb"
1460 flac_encoder_select="golomb lpc"
1461 flashsv_decoder_select="zlib"
1462 flashsv_encoder_select="zlib"
1463 flashsv2_decoder_select="zlib"
1464 flv_decoder_select="h263_decoder"
1465 flv_encoder_select="h263_encoder"
1466 fraps_decoder_select="huffman"
1467 h261_decoder_select="error_resilience mpegvideo"
1468 h261_encoder_select="aandcttables mpegvideoenc"
1469 h263_decoder_select="error_resilience h263_parser mpegvideo"
1470 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1471 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1472 h263i_decoder_select="h263_decoder"
1473 h263p_encoder_select="h263_encoder"
1474 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1475 h264_dxva2_hwaccel_deps="dxva2api_h"
1476 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1477 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1478 h264_vda_hwaccel_select="vda h264_decoder"
1479 h264_vdpau_decoder_select="vdpau h264_decoder"
1480 huffyuv_encoder_select="huffman"
1481 iac_decoder_select="fft mdct sinewin"
1482 imc_decoder_select="fft mdct sinewin"
1483 jpegls_decoder_select="golomb"
1484 jpegls_encoder_select="golomb"
1485 ljpeg_encoder_select="aandcttables mpegvideoenc"
1486 loco_decoder_select="golomb"
1487 mdec_decoder_select="error_resilience mpegvideo"
1488 mjpeg_encoder_select="aandcttables mpegvideoenc"
1489 mlp_decoder_select="mlp_parser"
1490 mp1_decoder_select="mpegaudio"
1491 mp1float_decoder_select="mpegaudio"
1492 mp2_decoder_select="mpegaudio"
1493 mp2float_decoder_select="mpegaudio"
1494 mp3_decoder_select="mpegaudio"
1495 mp3adu_decoder_select="mpegaudio"
1496 mp3adufloat_decoder_select="mpegaudio"
1497 mp3float_decoder_select="mpegaudio"
1498 mp3on4_decoder_select="mpegaudio"
1499 mp3on4float_decoder_select="mpegaudio"
1500 mpc7_decoder_select="mpegaudiodsp"
1501 mpc8_decoder_select="mpegaudiodsp"
1502 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1503 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1504 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1505 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1506 mpeg1video_decoder_select="error_resilience mpegvideo"
1507 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1508 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1509 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1510 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1511 mpeg2video_decoder_select="error_resilience mpegvideo"
1512 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1513 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1514 mpeg4_encoder_select="h263_encoder"
1515 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1516 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1517 msmpeg4v1_decoder_select="h263_decoder"
1518 msmpeg4v1_encoder_select="h263_encoder"
1519 msmpeg4v2_decoder_select="h263_decoder"
1520 msmpeg4v2_encoder_select="h263_encoder"
1521 msmpeg4v3_decoder_select="h263_decoder"
1522 msmpeg4v3_encoder_select="h263_encoder"
1523 mss2_decoder_select="vc1_decoder"
1524 nellymoser_decoder_select="mdct sinewin"
1525 nellymoser_encoder_select="mdct sinewin"
1526 nuv_decoder_select="lzo"
1527 png_decoder_select="zlib"
1528 png_encoder_select="zlib"
1529 qcelp_decoder_select="lsp"
1530 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1531 ra_144_encoder_select="lpc"
1532 ralf_decoder_select="golomb"
1533 rv10_decoder_select="h263_decoder"
1534 rv10_encoder_select="h263_encoder"
1535 rv20_decoder_select="h263_decoder"
1536 rv20_encoder_select="h263_encoder"
1537 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1538 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1539 shorten_decoder_select="golomb"
1540 sipr_decoder_select="lsp"
1541 snow_decoder_select="dwt rangecoder"
1542 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1543 svq1_decoder_select="error_resilience mpegvideo"
1544 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1545 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1546 svq3_decoder_suggest="zlib"
1547 theora_decoder_select="vp3_decoder"
1548 tiff_decoder_suggest="zlib"
1549 tiff_encoder_suggest="zlib"
1550 truehd_decoder_select="mlp_decoder"
1551 tscc_decoder_select="zlib"
1552 twinvq_decoder_select="mdct lsp sinewin"
1553 utvideo_encoder_select="huffman"
1554 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1555 vc1_dxva2_hwaccel_deps="dxva2api_h"
1556 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1557 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1558 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1559 vc1image_decoder_select="vc1_decoder"
1560 vorbis_decoder_select="mdct"
1561 vorbis_encoder_select="mdct"
1562 vp3_decoder_select="vp3dsp"
1563 vp5_decoder_select="vp3dsp"
1564 vp6_decoder_select="huffman vp3dsp"
1565 vp6a_decoder_select="vp6_decoder"
1566 vp6f_decoder_select="vp6_decoder"
1567 vp8_decoder_select="h264pred h264qpel"
1568 wmapro_decoder_select="mdct sinewin"
1569 wmav1_decoder_select="mdct sinewin"
1570 wmav1_encoder_select="mdct sinewin"
1571 wmav2_decoder_select="mdct sinewin"
1572 wmav2_encoder_select="mdct sinewin"
1573 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1574 wmv1_decoder_select="h263_decoder"
1575 wmv1_encoder_select="h263_encoder"
1576 wmv2_decoder_select="h263_decoder"
1577 wmv2_encoder_select="h263_encoder"
1578 wmv3_decoder_select="vc1_decoder"
1579 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1580 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1581 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1582 wmv3image_decoder_select="wmv3_decoder"
1583 zerocodec_decoder_select="zlib"
1584 zlib_decoder_select="zlib"
1585 zlib_encoder_select="zlib"
1586 zmbv_decoder_select="zlib"
1587 zmbv_encoder_select="zlib"
1588
1589 vaapi_deps="va_va_h"
1590 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1591 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1592
1593 # parsers
1594 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1595 mpeg4video_parser_select="error_resilience mpegvideo"
1596 mpegvideo_parser_select="error_resilience mpegvideo"
1597 vc1_parser_select="error_resilience mpegvideo"
1598
1599 # external libraries
1600 libfaac_encoder_deps="libfaac"
1601 libfdk_aac_encoder_deps="libfdk_aac"
1602 libgsm_decoder_deps="libgsm"
1603 libgsm_encoder_deps="libgsm"
1604 libgsm_ms_decoder_deps="libgsm"
1605 libgsm_ms_encoder_deps="libgsm"
1606 libilbc_decoder_deps="libilbc"
1607 libilbc_encoder_deps="libilbc"
1608 libmp3lame_encoder_deps="libmp3lame"
1609 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1610 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1611 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1612 libopenjpeg_decoder_deps="libopenjpeg"
1613 libopenjpeg_encoder_deps="libopenjpeg"
1614 libopus_decoder_deps="libopus"
1615 libopus_encoder_deps="libopus"
1616 libschroedinger_decoder_deps="libschroedinger"
1617 libschroedinger_encoder_deps="libschroedinger"
1618 libspeex_decoder_deps="libspeex"
1619 libspeex_encoder_deps="libspeex"
1620 libtheora_encoder_deps="libtheora"
1621 libvo_aacenc_encoder_deps="libvo_aacenc"
1622 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1623 libvorbis_encoder_deps="libvorbis"
1624 libvpx_decoder_deps="libvpx"
1625 libvpx_encoder_deps="libvpx"
1626 libx264_encoder_deps="libx264"
1627 libxavs_encoder_deps="libxavs"
1628 libxvid_encoder_deps="libxvid"
1629
1630 # demuxers / muxers
1631 ac3_demuxer_select="ac3_parser"
1632 asf_stream_muxer_select="asf_muxer"
1633 avisynth_demuxer_deps="avisynth"
1634 dirac_demuxer_select="dirac_parser"
1635 eac3_demuxer_select="ac3_parser"
1636 flac_demuxer_select="flac_parser"
1637 ipod_muxer_select="mov_muxer"
1638 matroska_audio_muxer_select="matroska_muxer"
1639 matroska_demuxer_suggest="bzlib lzo zlib"
1640 mov_demuxer_suggest="zlib"
1641 mp3_demuxer_select="mpegaudio_parser"
1642 mp4_muxer_select="mov_muxer"
1643 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1644 mpegtsraw_demuxer_select="mpegts_demuxer"
1645 mxf_d10_muxer_select="mxf_muxer"
1646 ogg_demuxer_select="golomb"
1647 psp_muxer_select="mov_muxer"
1648 rtp_demuxer_select="sdp_demuxer"
1649 rtp_muxer_select="mpegvideo"
1650 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1651 rtsp_demuxer_select="http_protocol rtpdec"
1652 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1653 sap_demuxer_select="sdp_demuxer"
1654 sap_muxer_select="rtp_muxer rtp_protocol"
1655 sdp_demuxer_select="rtpdec"
1656 smoothstreaming_muxer_select="ismv_muxer"
1657 spdif_muxer_select="aac_parser"
1658 tg2_muxer_select="mov_muxer"
1659 tgp_muxer_select="mov_muxer"
1660 w64_demuxer_deps="wav_demuxer"
1661
1662 # indevs / outdevs
1663 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1664 alsa_outdev_deps="alsa_asoundlib_h"
1665 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1666 dv1394_indev_deps="dv1394 dv_demuxer"
1667 fbdev_indev_deps="linux_fb_h"
1668 jack_indev_deps="jack_jack_h"
1669 libcdio_indev_deps="libcdio"
1670 libdc1394_indev_deps="libdc1394"
1671 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1672 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1673 pulse_indev_deps="libpulse"
1674 sndio_indev_deps="sndio_h"
1675 sndio_outdev_deps="sndio_h"
1676 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1677 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1678 vfwcap_indev_extralibs="-lavicap32"
1679 x11grab_indev_deps="x11grab XShmCreateImage"
1680
1681 # protocols
1682 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1683 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1684 ffrtmpcrypt_protocol_select="tcp_protocol"
1685 ffrtmphttp_protocol_deps="!librtmp_protocol"
1686 ffrtmphttp_protocol_select="http_protocol"
1687 gopher_protocol_deps="network"
1688 httpproxy_protocol_deps="network"
1689 httpproxy_protocol_select="tcp_protocol"
1690 http_protocol_deps="network"
1691 http_protocol_select="tcp_protocol"
1692 https_protocol_select="tls_protocol"
1693 librtmp_protocol_deps="librtmp"
1694 librtmpe_protocol_deps="librtmp"
1695 librtmps_protocol_deps="librtmp"
1696 librtmpt_protocol_deps="librtmp"
1697 librtmpte_protocol_deps="librtmp"
1698 mmsh_protocol_select="http_protocol"
1699 mmst_protocol_deps="network"
1700 rtmp_protocol_deps="!librtmp_protocol"
1701 rtmp_protocol_select="tcp_protocol"
1702 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1703 rtmps_protocol_deps="!librtmp_protocol"
1704 rtmps_protocol_select="tls_protocol"
1705 rtmpt_protocol_select="ffrtmphttp_protocol"
1706 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1707 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1708 rtp_protocol_select="udp_protocol"
1709 sctp_protocol_deps="network struct_sctp_event_subscribe"
1710 tcp_protocol_deps="network"
1711 tls_protocol_deps_any="openssl gnutls"
1712 tls_protocol_select="tcp_protocol"
1713 udp_protocol_deps="network"
1714
1715 # filters
1716 blackframe_filter_deps="gpl"
1717 boxblur_filter_deps="gpl"
1718 cropdetect_filter_deps="gpl"
1719 delogo_filter_deps="gpl"
1720 drawtext_filter_deps="libfreetype"
1721 frei0r_filter_deps="frei0r dlopen strtok_r"
1722 frei0r_filter_extralibs='$ldl'
1723 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1724 frei0r_src_filter_extralibs='$ldl'
1725 hqdn3d_filter_deps="gpl"
1726 resample_filter_deps="avresample"
1727 ocv_filter_deps="libopencv"
1728 scale_filter_deps="swscale"
1729 yadif_filter_deps="gpl"
1730
1731 # libraries
1732 avdevice_deps="avcodec avformat"
1733 avformat_deps="avcodec"
1734
1735 # programs
1736 avconv_deps="avcodec avfilter avformat avresample swscale
1737 aformat_filter asyncts_filter
1738 format_filter fps_filter scale_filter setpts_filter"
1739 avplay_deps="avcodec avformat swscale sdl"
1740 avplay_select="rdft"
1741 avprobe_deps="avcodec avformat"
1742 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1743 avserver_extralibs='$ldl'
1744
1745 doc_deps="texi2html"
1746
1747 # default parameters
1748
1749 logfile="config.log"
1750
1751 # installation paths
1752 prefix_default="/usr/local"
1753 bindir_default='${prefix}/bin'
1754 datadir_default='${prefix}/share/avconv'
1755 incdir_default='${prefix}/include'
1756 libdir_default='${prefix}/lib'
1757 mandir_default='${prefix}/share/man'
1758 shlibdir_default="$libdir_default"
1759
1760 # toolchain
1761 ar_default="ar"
1762 cc_default="gcc"
1763 host_cc_default="gcc"
1764 cp_f="cp -f"
1765 ln_s="ln -sf"
1766 nm_default="nm -g"
1767 objformat="elf"
1768 pkg_config_default=pkg-config
1769 ranlib="ranlib"
1770 yasmexe="yasm"
1771
1772 nogas=":"
1773
1774 # machine
1775 arch_default=$(uname -m)
1776 cpu="generic"
1777
1778 # OS
1779 target_os_default=$(tolower $(uname -s))
1780 host_os=$target_os_default
1781
1782 # configurable options
1783 enable $PROGRAM_LIST
1784
1785 enable avcodec
1786 enable avdevice
1787 enable avfilter
1788 enable avformat
1789 enable avresample
1790 enable avutil
1791 enable swscale
1792
1793 enable asm
1794 enable debug
1795 enable doc
1796 enable network
1797 enable optimizations
1798 enable safe_bitstream_reader
1799 enable static
1800 enable swscale_alpha
1801
1802 # build settings
1803 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1804 AVSERVERLDFLAGS=-Wl,-E
1805 LIBPREF="lib"
1806 LIBSUF=".a"
1807 FULLNAME='$(NAME)$(BUILDSUF)'
1808 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1809 SLIBPREF="lib"
1810 SLIBSUF=".so"
1811 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1812 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1813 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1814 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1815 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1816 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1817
1818 asflags_filter=echo
1819 cflags_filter=echo
1820 ldflags_filter=echo
1821
1822 AS_C='-c'
1823 AS_O='-o $@'
1824 CC_C='-c'
1825 CC_E='-E -o $@'
1826 CC_O='-o $@'
1827 LD_O='-o $@'
1828 LD_LIB='-l%'
1829 LD_PATH='-L'
1830 HOSTCC_C='-c'
1831 HOSTCC_O='-o $@'
1832 HOSTLD_O='-o $@'
1833
1834 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1835 host_libs='-lm'
1836 host_cflags_filter=echo
1837 host_ldflags_filter=echo
1838
1839 target_path='$(CURDIR)'
1840
1841 # since the object filename is not given with the -MM flag, the compiler
1842 # is only able to print the basename, and we must add the path ourselves
1843 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1844 DEPFLAGS='-MM'
1845
1846 # find source path
1847 if test -f configure; then
1848 source_path=.
1849 else
1850 source_path=$(cd $(dirname "$0"); pwd)
1851 echo "$source_path" | grep -q '[[:blank:]]' &&
1852 die "Out of tree builds are impossible with whitespace in source path."
1853 test -e "$source_path/config.h" &&
1854 die "Out of tree builds are impossible with config.h in source dir."
1855 fi
1856
1857 for v in "$@"; do
1858 r=${v#*=}
1859 l=${v%"$r"}
1860 r=$(sh_quote "$r")
1861 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1862 done
1863
1864 find_things(){
1865 thing=$1
1866 pattern=$2
1867 file=$source_path/$3
1868 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1869 }
1870
1871 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1872 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1873 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1874 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1875 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1876 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1877 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1878 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1879 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1880 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1881 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1882
1883 ALL_COMPONENTS="
1884 $BSF_LIST
1885 $DECODER_LIST
1886 $DEMUXER_LIST
1887 $ENCODER_LIST
1888 $FILTER_LIST
1889 $HWACCEL_LIST
1890 $INDEV_LIST
1891 $MUXER_LIST
1892 $OUTDEV_LIST
1893 $PARSER_LIST
1894 $PROTOCOL_LIST
1895 "
1896
1897 for n in $COMPONENT_LIST; do
1898 v=$(toupper ${n%s})_LIST
1899 eval enable \$$v
1900 eval ${n}_if_any="\$$v"
1901 done
1902
1903 disable snow_decoder snow_encoder
1904
1905 enable $ARCH_EXT_LIST
1906
1907 die_unknown(){
1908 echo "Unknown option \"$1\"."
1909 echo "See $0 --help for available options."
1910 exit 1
1911 }
1912
1913 show_list() {
1914 suffix=_$1
1915 shift
1916 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1917 exit 0
1918 }
1919
1920 rand_list(){
1921 IFS=', '
1922 set -- $*
1923 unset IFS
1924 for thing; do
1925 comp=${thing%:*}
1926 prob=${thing#$comp}
1927 prob=${prob#:}
1928 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
1929 echo "prob ${prob:-0.5}"
1930 printf '%s\n' $comp
1931 done
1932 }
1933
1934 do_random(){
1935 action=$1
1936 shift
1937 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
1938 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
1939 }
1940
1941 for opt do
1942 optval="${opt#*=}"
1943 case "$opt" in
1944 --extra-ldflags=*) add_ldflags $optval
1945 ;;
1946 --extra-libs=*) add_extralibs $optval
1947 ;;
1948 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1949 ;;
1950 --enable-debug=*) debuglevel="$optval"
1951 ;;
1952 --disable-programs)
1953 disable $PROGRAM_LIST
1954 ;;
1955 --disable-everything)
1956 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1957 ;;
1958 --enable-random|--disable-random)
1959 action=${opt%%-random}
1960 do_random ${action#--} $COMPONENT_LIST
1961 ;;
1962 --enable-random=*|--disable-random=*)
1963 action=${opt%%-random=*}
1964 do_random ${action#--} $optval
1965 ;;
1966 --enable-*=*|--disable-*=*)
1967 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1968 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1969 eval list=\$$(toupper $thing)_LIST
1970 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1971 $action $(filter "$name" $list)
1972 ;;
1973 --enable-?*|--disable-?*)
1974 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1975 if is_in $option $COMPONENT_LIST; then
1976 test $action = disable && action=unset
1977 eval $action \$$(toupper ${option%s})_LIST
1978 elif is_in $option $CMDLINE_SELECT; then
1979 $action $option
1980 else
1981 die_unknown $opt
1982 fi
1983 ;;
1984 --list-*)
1985 NAME="${opt#--list-}"
1986 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1987 NAME=${NAME%s}
1988 eval show_list $NAME \$$(toupper $NAME)_LIST
1989 ;;
1990 --help|-h) show_help
1991 ;;
1992 *)
1993 optname="${opt%%=*}"
1994 optname="${optname#--}"
1995 optname=$(echo "$optname" | sed 's/-/_/g')
1996 if is_in $optname $CMDLINE_SET; then
1997 eval $optname='$optval'
1998 elif is_in $optname $CMDLINE_APPEND; then
1999 append $optname "$optval"
2000 else
2001 die_unknown $opt
2002 fi
2003 ;;
2004 esac
2005 done
2006
2007 disabled logging && logfile=/dev/null
2008
2009 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2010 set >> $logfile
2011
2012 test -n "$cross_prefix" && enable cross_compile
2013
2014 if enabled cross_compile; then
2015 test -n "$arch" && test -n "$target_os" ||
2016 die "Must specify target arch and OS when cross-compiling"
2017 fi
2018
2019 ar_default="${cross_prefix}${ar_default}"
2020 cc_default="${cross_prefix}${cc_default}"
2021 nm_default="${cross_prefix}${nm_default}"
2022 pkg_config_default="${cross_prefix}${pkg_config_default}"
2023 ranlib="${cross_prefix}${ranlib}"
2024
2025 sysinclude_default="${sysroot}/usr/include"
2026
2027 case "$toolchain" in
2028 clang-asan)
2029 cc_default="clang"
2030 add_cflags -faddress-sanitizer
2031 add_ldflags -faddress-sanitizer
2032 ;;
2033 clang-tsan)
2034 cc_default="clang"
2035 add_cflags -fthread-sanitizer
2036 add_ldflags -fthread-sanitizer
2037 ;;
2038 msvc)
2039 cc_default="c99wrap cl"
2040 ld_default="c99wrap link"
2041 nm_default="dumpbin -symbols"
2042 ar_default="lib"
2043 target_os_default="win32"
2044 ;;
2045 ?*)
2046 die "Unknown toolchain $toolchain"
2047 ;;
2048 esac
2049
2050 set_default arch cc pkg_config sysinclude target_os
2051 enabled cross_compile || host_cc_default=$cc
2052 set_default host_cc
2053
2054 if ! $pkg_config --version >/dev/null 2>&1; then
2055 warn "$pkg_config not found, library detection may fail."
2056 pkg_config=false
2057 fi
2058
2059 exesuf() {
2060 case $1 in
2061 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2062 esac
2063 }
2064
2065 EXESUF=$(exesuf $target_os)
2066 HOSTEXESUF=$(exesuf $host_os)
2067
2068 # set temporary file name
2069 : ${TMPDIR:=$TEMPDIR}
2070 : ${TMPDIR:=$TMP}
2071 : ${TMPDIR:=/tmp}
2072
2073 if ! check_cmd mktemp -u XXXXXX; then
2074 # simple replacement for missing mktemp
2075 # NOT SAFE FOR GENERAL USE
2076 mktemp(){
2077 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2078 }
2079 fi
2080
2081 tmpfile(){
2082 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2083 (set -C; exec > $tmp) 2>/dev/null ||
2084 die "Unable to create temporary file in $TMPDIR."
2085 append TMPFILES $tmp
2086 eval $1=$tmp
2087 }
2088
2089 trap 'rm -f -- $TMPFILES' EXIT
2090
2091 tmpfile TMPASM .asm
2092 tmpfile TMPC .c
2093 tmpfile TMPE $EXESUF
2094 tmpfile TMPH .h
2095 tmpfile TMPO .o
2096 tmpfile TMPS .S
2097 tmpfile TMPSH .sh
2098 tmpfile TMPV .ver
2099
2100 unset -f mktemp
2101
2102 chmod +x $TMPE
2103
2104 # make sure we can execute files in $TMPDIR
2105 cat > $TMPSH 2>> $logfile <<EOF
2106 #! /bin/sh
2107 EOF
2108 chmod +x $TMPSH >> $logfile 2>&1
2109 if ! $TMPSH >> $logfile 2>&1; then
2110 cat <<EOF
2111 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2112 variable to another directory and make sure that it is not mounted noexec.
2113 EOF
2114 die "Sanity test failed."
2115 fi
2116
2117 ccc_flags(){
2118 for flag; do
2119 case $flag in
2120 -std=c99) echo -c99 ;;
2121 -mcpu=*) echo -arch ${flag#*=} ;;
2122 -mieee) echo -ieee ;;
2123 -O*|-fast) echo $flag ;;
2124 -fno-math-errno) echo -assume nomath_errno ;;
2125 -g) echo -g3 ;;
2126 -Wall) echo -msg_enable level2 ;;
2127 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2128 -Wl,*) echo $flag ;;
2129 -f*|-W*) ;;
2130 *) echo $flag ;;
2131 esac
2132 done
2133 }
2134
2135 msvc_flags(){
2136 for flag; do
2137 case $flag in
2138 -fomit-frame-pointer) echo -Oy ;;
2139 -g) echo -Z7 ;;
2140 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2141 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2142 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2143 -wd4996 -wd4273 ;;
2144 -std=c99) ;;
2145 -fno-math-errno) ;;
2146 -fno-common) ;;
2147 -fno-signed-zeros) ;;
2148 -lz) echo zlib.lib ;;
2149 -lavifil32) echo vfw32.lib ;;
2150 -lavicap32) echo vfw32.lib user32.lib ;;
2151 -l*) echo ${flag#-l}.lib ;;
2152 *) echo $flag ;;
2153 esac
2154 done
2155 }
2156
2157 pgi_flags(){
2158 for flag; do
2159 case $flag in
2160 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2161 -fomit-frame-pointer) echo -Mnoframe ;;
2162 -g) echo -gopt ;;
2163 *) echo $flag ;;
2164 esac
2165 done
2166 }
2167
2168 suncc_flags(){
2169 for flag; do
2170 case $flag in
2171 -march=*|-mcpu=*)
2172 case "${flag#*=}" in
2173 native) echo -xtarget=native ;;
2174 v9|niagara) echo -xarch=sparc ;;
2175 ultrasparc) echo -xarch=sparcvis ;;
2176 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2177 i586|pentium) echo -xchip=pentium ;;
2178 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2179 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2180 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2181 pentium4*) echo -xtarget=pentium4 ;;
2182 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2183 *-sse3) echo -xarch=sse3 ;;
2184 core2) echo -xarch=ssse3 -xchip=core2 ;;
2185 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2186 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2187 k8|opteron|athlon64|athlon-fx)
2188 echo -xarch=sse2a ;;
2189 athlon*) echo -xarch=pentium_proa ;;
2190 esac
2191 ;;
2192 -std=c99) echo -xc99 ;;
2193 -fomit-frame-pointer) echo -xregs=frameptr ;;
2194 -fPIC) echo -KPIC -xcode=pic32 ;;
2195 -W*,*) echo $flag ;;
2196 -f*-*|-W*) ;;
2197 *) echo $flag ;;
2198 esac
2199 done
2200 }
2201
2202 tms470_flags(){
2203 for flag; do
2204 case $flag in
2205 -march=*|-mcpu=*)
2206 case "${flag#*=}" in
2207 armv7-a|cortex-a*) echo -mv=7a8 ;;
2208 armv7-r|cortex-r*) echo -mv=7r4 ;;
2209 armv7-m|cortex-m*) echo -mv=7m3 ;;
2210 armv6*|arm11*) echo -mv=6 ;;
2211 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2212 echo -mv=5e ;;
2213 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2214 esac
2215 ;;
2216 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2217 -mfpu=vfp) echo --float_support=vfpv2 ;;
2218 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2219 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2220 -msoft-float) echo --float_support=vfplib ;;
2221 -O[0-3]|-mf=*) echo $flag ;;
2222 -g) echo -g -mn ;;
2223 -pds=*) echo $flag ;;
2224 -D*|-I*) echo $flag ;;
2225 --gcc|--abi=*) echo $flag ;;
2226 -me) echo $flag ;;
2227 esac
2228 done
2229 }
2230
2231 probe_cc(){
2232 pfx=$1
2233 _cc=$2
2234
2235 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2236 unset _ld_o _ldflags _ld_lib _ld_path
2237 unset _depflags _DEPCMD _DEPFLAGS
2238 _flags_filter=echo
2239
2240 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2241 _type=llvm_gcc
2242 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2243 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2244 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2245 _cflags_speed='-O3'
2246 _cflags_size='-Os'
2247 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2248 _type=gcc
2249 gcc_version=$($_cc --version | head -n1)
2250 gcc_basever=$($_cc -dumpversion)
2251 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2252 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2253 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2254 if ! $_cc -dumpversion | grep -q '^2\.'; then
2255 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2256 fi
2257 _cflags_speed='-O3'
2258 _cflags_size='-Os'
2259 elif $_cc --version 2>/dev/null | grep -q Intel; then
2260 _type=icc
2261 _ident=$($_cc --version | head -n1)
2262 _depflags='-MMD'
2263 _cflags_speed='-O3'
2264 _cflags_size='-Os'
2265 _cflags_noopt='-O1'
2266 elif $_cc -v 2>&1 | grep -q xlc; then
2267 _type=xlc
2268 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2269 _cflags_speed='-O5'
2270 _cflags_size='-O5 -qcompact'
2271 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2272 _type=ccc
2273 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2274 _DEPFLAGS='-M'
2275 _cflags_speed='-fast'
2276 _cflags_size='-O1'
2277 _flags_filter=ccc_flags
2278 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2279 test -d "$sysroot" || die "No valid sysroot specified."
2280 _type=armcc
2281 _ident=$($_cc --vsn | head -n1)
2282 armcc_conf="$PWD/armcc.conf"
2283 $_cc --arm_linux_configure \
2284 --arm_linux_config_file="$armcc_conf" \
2285 --configure_sysroot="$sysroot" \
2286 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2287 die "Error creating armcc configuration file."
2288 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2289 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2290 as_default="${cross_prefix}gcc"
2291 _depflags='-MMD'
2292 _cflags_speed='-O3'
2293 _cflags_size='-Os'
2294 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2295 _type=tms470
2296 _ident=$($_cc -version | head -n1 | tr -s ' ')
2297 _flags='--gcc --abi=eabi -me'
2298 _cc_e='-ppl -fe=$@'
2299 _cc_o='-fe=$@'
2300 _depflags='-ppa -ppd=$(@:.o=.d)'
2301 _cflags_speed='-O3 -mf=5'
2302 _cflags_size='-O3 -mf=2'
2303 _flags_filter=tms470_flags
2304 elif $_cc -v 2>&1 | grep -q clang; then
2305 _type=clang
2306 _ident=$($_cc --version | head -n1)
2307 _depflags='-MMD'
2308 _cflags_speed='-O3'
2309 _cflags_size='-Os'
2310 elif $_cc -V 2>&1 | grep -q Sun; then
2311 _type=suncc
2312 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2313 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2314 _DEPFLAGS='-xM1 -xc99'
2315 _ldflags='-std=c99'
2316 _cflags_speed='-O5'
2317 _cflags_size='-O5 -xspace'
2318 _flags_filter=suncc_flags
2319 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2320 _type=pathscale
2321 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2322 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2323 _cflags_speed='-O2'
2324 _cflags_size='-Os'
2325 _flags_filter='filter_out -Wdisabled-optimization'
2326 elif $_cc -v 2>&1 | grep -q Open64; then
2327 _type=open64
2328 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2329 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2330 _cflags_speed='-O2'
2331 _cflags_size='-Os'
2332 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2333 elif $_cc -V 2>&1 | grep -q Portland; then
2334 _type=pgi
2335 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2336 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2337 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2338 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2339 _cflags_noopt="-O1"
2340 _flags_filter=pgi_flags
2341 elif $_cc 2>&1 | grep -q Microsoft; then
2342 _type=msvc
2343 _ident=$($cc 2>&1 | head -n1)
2344 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2345 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2346 _cflags_speed="-O2"
2347 _cflags_size="-O1"
2348 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2349 if $_cc 2>&1 | grep -q Linker; then
2350 _ld_o='-out $@'
2351 else
2352 _ld_o='-Fe$@'
2353 fi
2354 _cc_o='-Fo $@'
2355 _cc_e='-P -Fi $@'
2356 _flags_filter=msvc_flags
2357 _ld_lib='lib%.a'
2358 _ld_path='-libpath:'
2359 _flags='-nologo'
2360 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2361 if [ $pfx = hostcc ]; then
2362 append _cflags -Dsnprintf=_snprintf
2363 fi
2364 fi
2365
2366 eval ${pfx}_type=\$_type
2367 eval ${pfx}_ident=\$_ident
2368 }
2369
2370 set_ccvars(){
2371 eval ${1}_C=\${_cc_c-\${${1}_C}}
2372 eval ${1}_E=\${_cc_e-\${${1}_E}}
2373 eval ${1}_O=\${_cc_o-\${${1}_O}}
2374
2375 if [ -n "$_depflags" ]; then
2376 eval ${1}_DEPFLAGS=\$_depflags
2377 else
2378 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2379 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2380 eval DEP${1}FLAGS=\$_flags
2381 fi
2382 }
2383
2384 probe_cc cc "$cc"
2385 cflags_filter=$_flags_filter
2386 cflags_speed=$_cflags_speed
2387 cflags_size=$_cflags_size
2388 cflags_noopt=$_cflags_noopt
2389 add_cflags $_flags $_cflags
2390 cc_ldflags=$_ldflags
2391 set_ccvars CC
2392
2393 probe_cc hostcc "$host_cc"
2394 host_cflags_filter=$_flags_filter
2395 add_host_cflags $_flags $_cflags
2396 set_ccvars HOSTCC
2397
2398 test -n "$cc_type" && enable $cc_type ||
2399 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2400
2401 : ${as_default:=$cc}
2402 : ${dep_cc_default:=$cc}
2403 : ${ld_default:=$cc}
2404 : ${host_ld_default:=$host_cc}
2405 set_default ar as dep_cc ld host_ld
2406
2407 probe_cc as "$as"
2408 asflags_filter=$_flags_filter
2409 add_asflags $_flags $_cflags
2410 set_ccvars AS
2411
2412 probe_cc ld "$ld"
2413 ldflags_filter=$_flags_filter
2414 add_ldflags $_flags $_ldflags
2415 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2416 LD_O=${_ld_o-$LD_O}
2417 LD_LIB=${_ld_lib-$LD_LIB}
2418 LD_PATH=${_ld_path-$LD_PATH}
2419
2420 probe_cc hostld "$host_ld"
2421 host_ldflags_filter=$_flags_filter
2422 add_host_ldflags $_flags $_ldflags
2423 HOSTLD_O=${_ld_o-$HOSTLD_O}
2424
2425 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2426 probe_cc depcc "$dep_cc"
2427 CCDEP=${_DEPCMD:-$DEPCMD}
2428 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2429 DEPCCFLAGS=$_flags
2430 fi
2431
2432 if $ar 2>&1 | grep -q Microsoft; then
2433 arflags="-nologo"
2434 ar_o='-out:$@'
2435 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2436 arflags="rq"
2437 ar_o='$@'
2438 else
2439 arflags="rc"
2440 ar_o='$@'
2441 fi
2442
2443 add_cflags $extra_cflags
2444 add_asflags $extra_cflags
2445
2446 if test -n "$sysroot"; then
2447 case "$cc_type" in
2448 gcc|llvm_gcc|clang)
2449 add_cppflags --sysroot="$sysroot"
2450 add_ldflags --sysroot="$sysroot"
2451 ;;
2452 tms470)
2453 add_cppflags -I"$sysinclude"
2454 add_ldflags --sysroot="$sysroot"
2455 ;;
2456 esac
2457 fi
2458
2459 if test "$cpu" = host; then
2460 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2461
2462 case "$cc_type" in
2463 gcc|llvm_gcc)
2464 check_native(){
2465 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2466 sed -n "/cc1.*$1=/{
2467 s/.*$1=\\([^ ]*\\).*/\\1/
2468 p
2469 q
2470 }" $TMPE
2471 }
2472 cpu=$(check_native -march || check_native -mcpu)
2473 ;;
2474 esac
2475
2476 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2477 fi
2478
2479 # Deal with common $arch aliases
2480 case "$arch" in
2481 aarch64|arm64)
2482 arch="aarch64"
2483 ;;
2484 arm*)
2485 arch="arm"
2486 ;;
2487 mips*|IP*)
2488 arch="mips"
2489 ;;
2490 parisc*|hppa*)
2491 arch="parisc"
2492 ;;
2493 "Power Macintosh"|ppc*|powerpc*)
2494 arch="ppc"
2495 ;;
2496 s390|s390x)
2497 arch="s390"
2498 ;;
2499 sh4|sh)
2500 arch="sh4"
2501 ;;
2502 sun4u|sparc*)
2503 arch="sparc"
2504 ;;
2505 tilegx|tile-gx)
2506 arch="tilegx"
2507 ;;
2508 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2509 arch="x86"
2510 ;;
2511 esac
2512
2513 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2514 enable $arch
2515
2516 # Add processor-specific flags
2517 if test "$cpu" = generic; then
2518 : do nothing
2519
2520 elif enabled aarch64; then
2521
2522 case $cpu in
2523 armv*)
2524 cpuflags="-march=$cpu"
2525 ;;
2526 *)
2527 cpuflags="-mcpu=$cpu"
2528 ;;
2529 esac
2530
2531 elif enabled alpha; then
2532
2533 cpuflags="-mcpu=$cpu"
2534
2535 elif enabled arm; then
2536
2537 case $cpu in
2538 armv*)
2539 cpuflags="-march=$cpu"
2540 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2541 ;;
2542 *)
2543 cpuflags="-mcpu=$cpu"
2544 case $cpu in
2545 cortex-a*) subarch=armv7a ;;
2546 cortex-r*) subarch=armv7r ;;
2547 cortex-m*) enable thumb; subarch=armv7m ;;
2548 arm11*) subarch=armv6 ;;
2549 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2550 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2551 esac
2552 ;;
2553 esac
2554
2555 elif enabled avr32; then
2556
2557 case $cpu in
2558 ap7[02]0[0-2])
2559 subarch="avr32_ap"
2560 cpuflags="-mpart=$cpu"
2561 ;;
2562 ap)
2563 subarch="avr32_ap"
2564 cpuflags="-march=$cpu"
2565 ;;
2566 uc3[ab]*)
2567 subarch="avr32_uc"
2568 cpuflags="-mcpu=$cpu"
2569 ;;
2570 uc)
2571 subarch="avr32_uc"
2572 cpuflags="-march=$cpu"
2573 ;;
2574 esac
2575
2576 elif enabled bfin; then
2577
2578 cpuflags="-mcpu=$cpu"
2579
2580 elif enabled mips; then
2581
2582 cpuflags="-march=$cpu"
2583
2584 elif enabled ppc; then
2585
2586 case $(tolower $cpu) in
2587 601|ppc601|powerpc601)
2588 cpuflags="-mcpu=601"
2589 disable altivec
2590 ;;
2591 603*|ppc603*|powerpc603*)
2592 cpuflags="-mcpu=603"
2593 disable altivec
2594 ;;
2595 604*|ppc604*|powerpc604*)
2596 cpuflags="-mcpu=604"
2597 disable altivec
2598 ;;
2599 g3|75*|ppc75*|powerpc75*)
2600 cpuflags="-mcpu=750"
2601 disable altivec
2602 ;;
2603 g4|745*|ppc745*|powerpc745*)
2604 cpuflags="-mcpu=7450"
2605 ;;
2606 74*|ppc74*|powerpc74*)
2607 cpuflags="-mcpu=7400"
2608 ;;
2609 g5|970|ppc970|powerpc970)
2610 cpuflags="-mcpu=970"
2611 ;;
2612 power[3-7]*)
2613 cpuflags="-mcpu=$cpu"
2614 ;;
2615 cell)
2616 cpuflags="-mcpu=cell"
2617 enable ldbrx
2618 ;;
2619 e500mc)
2620 cpuflags="-mcpu=e500mc"
2621 disable altivec
2622 ;;
2623 e500v2)
2624 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2625 disable altivec
2626 ;;
2627 e500)
2628 cpuflags="-mcpu=8540 -mhard-float"
2629 disable altivec
2630 ;;
2631 esac
2632
2633 elif enabled sparc; then
2634
2635 case $cpu in
2636 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2637 cpuflags="-mcpu=$cpu"
2638 disable vis
2639 ;;
2640 ultrasparc*|niagara[234])
2641 cpuflags="-mcpu=$cpu"
2642 ;;
2643 esac
2644
2645 elif enabled x86; then
2646
2647 case $cpu in
2648 i[345]86|pentium)
2649 cpuflags="-march=$cpu"
2650 disable mmx
2651 ;;
2652 # targets that do NOT support conditional mov (cmov)
2653 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2654 cpuflags="-march=$cpu"
2655 disable cmov
2656 ;;
2657 # targets that do support conditional mov (cmov)
2658 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2659 cpuflags="-march=$cpu"
2660 enable cmov
2661 enable fast_cmov
2662 ;;
2663 # targets that do support conditional mov but on which it's slow
2664 pentium4|pentium4m|prescott|nocona)
2665 cpuflags="-march=$cpu"
2666 enable cmov
2667 disable fast_cmov
2668 ;;
2669 esac
2670
2671 fi
2672
2673 add_cflags $cpuflags
2674 add_asflags $cpuflags
2675
2676 # compiler sanity check
2677 check_exec <<EOF
2678 int main(void){ return 0; }
2679 EOF
2680 if test "$?" != 0; then
2681 echo "$cc is unable to create an executable file."
2682 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2683 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2684 echo "Only do this if you know what cross compiling means."
2685 fi
2686 die "C compiler test failed."
2687 fi
2688
2689 add_cppflags -D_ISOC99_SOURCE
2690 check_cflags -std=c99
2691 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2692 #include <stdlib.h>
2693 EOF
2694 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2695 #include <stdlib.h>
2696 EOF
2697
2698 check_host_cflags -std=c99
2699 check_host_cflags -Wall
2700
2701 check_64bit(){
2702 arch32=$1
2703 arch64=$2
2704 expr=$3
2705 check_code cc "" "int test[2*($expr) - 1]" &&
2706 subarch=$arch64 || subarch=$arch32
2707 }
2708
2709 case "$arch" in
2710 alpha|ia64)
2711 spic=$shared
2712 ;;
2713 mips)
2714 check_64bit mips mips64 '_MIPS_SIM > 1'
2715 spic=$shared
2716 ;;
2717 parisc)
2718 check_64bit parisc parisc64 'sizeof(void *) > 4'
2719 spic=$shared
2720 ;;
2721 ppc)
2722 check_64bit ppc ppc64 'sizeof(void *) > 4'
2723 ;;
2724 sparc)
2725 check_64bit sparc sparc64 'sizeof(void *) > 4'
2726 spic=$shared
2727 ;;
2728 x86)
2729 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
2730 if test "$subarch" = "x86_64"; then
2731 spic=$shared
2732 fi
2733 ;;
2734 esac
2735
2736 enable $subarch
2737 enabled spic && enable pic
2738
2739 # OS specific
2740 case $target_os in
2741 haiku)
2742 prefix_default="/boot/common"
2743 network_extralibs="-lnetwork"
2744 host_libs=
2745 ;;
2746 sunos)
2747 AVSERVERLDFLAGS=""
2748 SHFLAGS='-shared -Wl,-h,$$(@F)'
2749 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2750 network_extralibs="-lsocket -lnsl"
2751 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2752 # When using suncc to build, the Solaris linker will mark
2753 # an executable with each instruction set encountered by
2754 # the Solaris assembler. As our libraries contain their own
2755 # guards for processor-specific code, instead suppress
2756 # generation of the HWCAPS ELF section on Solaris x86 only.
2757 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2758 nm_default='nm -P -g'
2759 ;;
2760 netbsd)
2761 disable symver
2762 oss_indev_extralibs="-lossaudio"
2763 oss_outdev_extralibs="-lossaudio"
2764 ;;
2765 openbsd|bitrig)
2766 # On OpenBSD 4.5. the compiler does not use PIC unless
2767 # explicitly using -fPIC. Libav builds fine without PIC,
2768 # however the generated executable will not do anything
2769 # (simply quits with exit-code 1, no crash, no output).
2770 # Thus explicitly enable PIC here.
2771 enable pic
2772 disable symver
2773 SHFLAGS='-shared'
2774 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2775 SLIB_INSTALL_LINKS=
2776 oss_indev_extralibs="-lossaudio"
2777 oss_outdev_extralibs="-lossaudio"
2778 ;;
2779 dragonfly)
2780 disable symver
2781 ;;
2782 freebsd)
2783 ;;
2784 bsd/os)
2785 add_extralibs -lpoll -lgnugetopt
2786 ;;
2787 darwin)
2788 gas="gas-preprocessor.pl $cc"
2789 enabled ppc && add_asflags -force_cpusubtype_ALL
2790 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2791 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2792 add_ldflags -Wl,-dynamic,-search_paths_first
2793 SLIBSUF=".dylib"
2794 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2795 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2796 AVSERVERLDFLAGS=-Wl,-bind_at_load
2797 objformat="macho"
2798 enabled x86_64 && objformat="macho64"
2799 enabled_any pic shared ||
2800 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2801 ;;
2802 mingw32*)
2803 if test $target_os = "mingw32ce"; then
2804 disable network
2805 else
2806 target_os=mingw32
2807 fi
2808 LIBTARGET=i386
2809 if enabled x86_64; then
2810 LIBTARGET="i386:x86-64"
2811 elif enabled arm; then
2812 LIBTARGET=arm-wince
2813 fi
2814 shlibdir_default="$bindir_default"
2815 SLIBPREF=""
2816 SLIBSUF=".dll"
2817 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2818 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2819 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2820 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2821 SLIB_INSTALL_LINKS=
2822 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2823 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2824 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2825 objformat="win32"
2826 dlltool="${cross_prefix}dlltool"
2827 ranlib=:
2828 enable dos_paths
2829 add_cppflags -U__STRICT_ANSI__
2830 ;;
2831 win32|win64)
2832 if enabled shared; then
2833 # Link to the import library instead of the normal static library
2834 # for shared libs.
2835 LD_LIB='%.lib'
2836 # Cannot build shared and static libraries at the same time with
2837 # MSVC.
2838 disable static
2839 fi
2840 shlibdir_default="$bindir_default"
2841 SLIBPREF=""
2842 SLIBSUF=".dll"
2843 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2844 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2845 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
2846 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2847 SLIB_INSTALL_LINKS=
2848 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2849 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2850 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2851 objformat="win32"
2852 ranlib=:
2853 enable dos_paths
2854 ;;
2855 cygwin*)
2856 target_os=cygwin
2857 shlibdir_default="$bindir_default"
2858 SLIBPREF="cyg"
2859 SLIBSUF=".dll"
2860 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2861 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2862 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2863 SLIB_INSTALL_LINKS=
2864 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2865 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2866 objformat="win32"
2867 enable dos_paths
2868 ;;
2869 *-dos|freedos|opendos)
2870 network_extralibs="-lsocket"
2871 objformat="coff"
2872 enable dos_paths
2873 add_cppflags -U__STRICT_ANSI__
2874 ;;
2875 linux)
2876 enable dv1394
2877 ;;
2878 irix*)
2879 target_os=irix
2880 ranlib="echo ignoring ranlib"
2881 ;;
2882 os/2*)
2883 ln_s="cp -f"
2884 objformat="aout"
2885 add_cppflags -D_GNU_SOURCE
2886 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2887 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2888 AVSERVERLDFLAGS=""
2889 LIBSUF="_s.a"
2890 SLIBPREF=""
2891 SLIBSUF=".dll"
2892 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2893 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2894 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2895 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2896 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2897 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2898 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2899 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2900 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2901 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2902 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2903 enable dos_paths
2904 ;;
2905 gnu/kfreebsd)
2906 add_cppflags -D_BSD_SOURCE
2907 ;;
2908 gnu)
2909 ;;
2910 qnx)
2911 add_cppflags -D_QNX_SOURCE
2912 network_extralibs="-lsocket"
2913 ;;
2914 symbian)
2915 SLIBSUF=".dll"
2916 enable dos_paths
2917 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2918 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2919 add_ldflags -Wl,--target1-abs,--no-undefined \
2920 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2921 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2922 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2923 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2924 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2925 ;;
2926 osf1)
2927 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
2928 AVSERVERLDFLAGS=
2929 ;;
2930 minix)
2931 ;;
2932 plan9)
2933 add_cppflags -D_C99_SNPRINTF_EXTENSION \
2934 -D_REENTRANT_SOURCE \
2935 -D_RESEARCH_SOURCE \
2936 -DFD_SETSIZE=96 \
2937 -DHAVE_SOCK_OPTS
2938 add_compat strtod.o strtod=avpriv_strtod
2939 network_extralibs='-lbsd'
2940 exeobjs=compat/plan9/main.o
2941 disable avserver
2942 ln_s='ln -s -f'
2943 cp_f='cp'
2944 ;;
2945 none)
2946 ;;
2947 *)
2948 die "Unknown OS '$target_os'."
2949 ;;
2950 esac
2951
2952 # determine libc flavour
2953
2954 if check_cpp_condition features.h "defined __UCLIBC__"; then
2955 libc_type=uclibc
2956 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2957 elif check_cpp_condition features.h "defined __GLIBC__"; then
2958 libc_type=glibc
2959 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2960 elif check_header _mingw.h; then
2961 libc_type=mingw
2962 check_cpp_condition _mingw.h \
2963 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
2964 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2965 die "ERROR: MinGW runtime version must be >= 3.15."
2966 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
2967 libc_type=newlib
2968 add_cppflags -U__STRICT_ANSI__
2969 elif check_func_headers stdlib.h _get_doserrno; then
2970 libc_type=msvcrt
2971 add_compat strtod.o strtod=avpriv_strtod
2972 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
2973 _snprintf=avpriv_snprintf \
2974 vsnprintf=avpriv_vsnprintf
2975 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
2976 libc_type=klibc
2977 fi
2978
2979 test -n "$libc_type" && enable $libc_type
2980
2981 # hacks for compiler/libc/os combinations
2982
2983 if enabled_all tms470 glibc; then
2984 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
2985 add_cppflags -D__USER_LABEL_PREFIX__=
2986 add_cppflags -D__builtin_memset=memset
2987 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
2988 add_cflags -pds=48 # incompatible redefinition of macro
2989 fi
2990
2991 if enabled_all ccc glibc; then
2992 add_ldflags -Wl,-z,now # calls to libots crash without this
2993 fi
2994
2995 esc(){
2996 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2997 }
2998
2999 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3000
3001 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3002
3003 set_default $PATHS_LIST
3004 set_default nm
3005
3006 # we need to build at least one lib type
3007 if ! enabled_any static shared; then
3008 cat <<EOF
3009 At least one library type must be built.
3010 Specify --enable-static to build the static libraries or --enable-shared to
3011 build the shared libraries as well. To only build the shared libraries specify
3012 --disable-static in addition to --enable-shared.
3013 EOF
3014 exit 1;
3015 fi
3016
3017 die_license_disabled() {
3018 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3019 }
3020
3021 die_license_disabled gpl libcdio
3022 die_license_disabled gpl libx264
3023 die_license_disabled gpl libxavs
3024 die_license_disabled gpl libxvid
3025 die_license_disabled gpl x11grab
3026
3027 die_license_disabled nonfree libfaac
3028 die_license_disabled nonfree libfdk_aac
3029 die_license_disabled nonfree openssl
3030
3031 die_license_disabled version3 libopencore_amrnb
3032 die_license_disabled version3 libopencore_amrwb
3033 die_license_disabled version3 libvo_aacenc
3034 die_license_disabled version3 libvo_amrwbenc
3035
3036 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3037
3038 disabled optimizations || check_cflags -fomit-frame-pointer
3039
3040 enable_pic() {
3041 enable pic
3042 add_cppflags -DPIC
3043 add_cflags -fPIC
3044 add_asflags -fPIC
3045 }
3046
3047 enabled pic && enable_pic
3048
3049 check_cc <<EOF || die "Symbol mangling check failed."
3050 int ff_extern;
3051 EOF
3052 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3053 extern_prefix=${sym%%ff_extern*}
3054
3055 check_cc <<EOF && enable_weak inline_asm
3056 void foo(void) { __asm__ volatile ("" ::); }
3057 EOF
3058
3059 _restrict=
3060 for restrict_keyword in restrict __restrict__ __restrict; do
3061 check_cc <<EOF && _restrict=$restrict_keyword && break
3062 void foo(char * $restrict_keyword p);
3063 EOF
3064 done
3065
3066 check_cc <<EOF && enable attribute_packed
3067 struct { int x; } __attribute__((packed)) x;
3068 EOF
3069
3070 check_cc <<EOF && enable attribute_may_alias
3071 union { int x; } __attribute__((may_alias)) x;
3072 EOF
3073
3074 check_cc <<EOF || die "endian test failed"
3075 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3076 EOF
3077 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3078
3079 if enabled alpha; then
3080
3081 check_cflags -mieee
3082
3083 elif enabled arm; then
3084
3085 enabled thumb && check_cflags -mthumb || check_cflags -marm
3086 nogas=die
3087
3088 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3089 enable vfp_args
3090 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3091 case "${cross_prefix:-$cc}" in
3092 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3093 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3094 __asm__ (".eabi_attribute 28, 1");
3095 int main(void) { return 0; }
3096 EOF
3097 esac
3098 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3099 fi
3100
3101 enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3102 enabled armv6 && check_inline_asm armv6 '"sadd16 r0, r0, r0"'
3103 enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3104 enabled armvfp && check_inline_asm armvfp '"fadds s0, s0, s0"'
3105 enabled neon && check_inline_asm neon '"vadd.i16 q0, q0, q0"'
3106 enabled vfpv3 && check_inline_asm vfpv3 '"vmov.f32 s0, #1.0"'
3107
3108 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3109 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3110
3111 enabled_all armv6t2 shared !pic && enable_pic
3112
3113 elif enabled mips; then
3114
3115 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3116
3117 elif enabled parisc; then
3118
3119 if enabled gcc; then
3120 case $($cc -dumpversion) in
3121 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3122 esac
3123 fi
3124
3125 elif enabled ppc; then
3126
3127 enable local_aligned_8 local_aligned_16
3128
3129 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3130 check_inline_asm ibm_asm '"add 0, 0, 0"'
3131 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3132 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3133
3134 # AltiVec flags: The FSF version of GCC differs from the Apple version
3135 if enabled altivec; then
3136 nogas=warn
3137 check_cflags -maltivec -mabi=altivec &&
3138 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3139 check_cflags -faltivec
3140
3141 # check if our compiler supports Motorola AltiVec C API
3142 check_cc <<EOF || disable altivec
3143 $inc_altivec_h
3144 int main(void) {
3145 vector signed int v1 = (vector signed int) { 0 };
3146 vector signed int v2 = (vector signed int) { 1 };
3147 v1 = vec_add(v1, v2);
3148 return 0;
3149 }
3150 EOF
3151
3152 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3153 fi
3154
3155 elif enabled sparc; then
3156
3157 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3158
3159 elif enabled x86; then
3160
3161 check_code ld intrin.h "__rdtsc()" && enable rdtsc
3162
3163 check_code ld mmintrin.h "_mm_empty()" && enable mm_empty
3164
3165 enable local_aligned_8 local_aligned_16
3166
3167 # check whether EBP is available on x86
3168 # As 'i' is stored on the stack, this program will crash
3169 # if the base pointer is used to access it because the
3170 # base pointer is cleared in the inline assembly code.
3171 check_exec_crash <<EOF && enable ebp_available
3172 volatile int i=0;
3173 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3174 return i;
3175 EOF
3176
3177 # check whether EBX is available on x86
3178 check_inline_asm ebx_available '""::"b"(0)' &&
3179 check_inline_asm ebx_available '"":::"%ebx"'
3180
3181 # check whether xmm clobbers are supported
3182 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3183
3184 # check whether binutils is new enough to compile SSSE3/MMXEXT
3185 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3186 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3187
3188 if ! disabled_any asm mmx yasm; then
3189 if check_cmd $yasmexe --version; then
3190 enabled x86_64 && yasm_extra="-m amd64"
3191 yasm_debug="-g dwarf2"
3192 elif check_cmd nasm -v; then
3193 yasmexe=nasm
3194 yasm_debug="-g -F dwarf"
3195 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3196 fi
3197
3198 YASMFLAGS="-f $objformat $yasm_extra"
3199 enabled pic && append YASMFLAGS "-DPIC"
3200 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3201 case "$objformat" in
3202 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3203 esac
3204
3205 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3206 die "yasm not found, use --disable-yasm for a crippled build"
3207 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3208 check_yasm "CPU amdnop" && enable cpunop
3209 fi
3210
3211 case "$cpu" in
3212 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3213 disable fast_clz
3214 ;;
3215 esac
3216
3217 fi
3218
3219 if enabled asm; then
3220 as=${gas:=$as}
3221 check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3222 $nogas "GNU assembler not found, install gas-preprocessor"
3223 fi
3224
3225 check_ldflags -Wl,--as-needed
3226
3227 if check_func dlopen; then
3228 ldl=
3229 elif check_func dlopen -ldl; then
3230 ldl=-ldl
3231 fi
3232
3233 if enabled network; then
3234 check_type "sys/types.h sys/socket.h" socklen_t
3235 check_type netdb.h "struct addrinfo"
3236 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3237 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3238 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3239 check_type netinet/in.h "struct sockaddr_in6"
3240 check_type poll.h "struct pollfd"
3241 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3242 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3243 check_type netinet/sctp.h "struct sctp_event_subscribe"
3244 check_func getaddrinfo $network_extralibs
3245 check_func getservbyport $network_extralibs
3246 # Prefer arpa/inet.h over winsock2
3247 if check_header arpa/inet.h ; then
3248 check_func closesocket
3249 elif check_header winsock2.h ; then
3250 check_func_headers winsock2.h closesocket -lws2 &&
3251 network_extralibs="-lws2" ||
3252 { check_func_headers winsock2.h closesocket -lws2_32 &&
3253 network_extralibs="-lws2_32"; }
3254 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3255 check_type ws2tcpip.h socklen_t
3256 check_type ws2tcpip.h "struct addrinfo"
3257 check_type ws2tcpip.h "struct group_source_req"
3258 check_type ws2tcpip.h "struct ip_mreq_source"
3259 check_type ws2tcpip.h "struct ipv6_mreq"
3260 check_type winsock2.h "struct pollfd"
3261 check_type ws2tcpip.h "struct sockaddr_in6"
3262 check_type ws2tcpip.h "struct sockaddr_storage"
3263 check_struct winsock2.h "struct sockaddr" sa_len
3264 else
3265 disable network
3266 fi
3267 fi
3268
3269 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3270 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3271
3272 check_func fcntl
3273 check_func fork
3274 check_func gethrtime
3275 check_func getopt
3276 check_func getrusage
3277 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3278 check_func gettimeofday
3279 check_func inet_aton $network_extralibs
3280 check_func isatty
3281 check_func localtime_r
3282 check_func ${malloc_prefix}memalign && enable memalign
3283 check_func mkstemp
3284 check_func mmap
3285 check_func mprotect
3286 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3287 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3288 check_func setrlimit
3289 check_func strerror_r
3290 check_func strptime
3291 check_func strtok_r
3292 check_func sched_getaffinity
3293 check_func sysconf
3294 check_func sysctl
3295 check_func usleep
3296 check_func_headers io.h setmode
3297 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3298 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3299 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3300 check_func_headers windows.h GetProcessAffinityMask
3301 check_func_headers windows.h GetProcessTimes
3302 check_func_headers windows.h GetSystemTimeAsFileTime
3303 check_func_headers windows.h MapViewOfFile
3304 check_func_headers windows.h Sleep
3305 check_func_headers windows.h VirtualAlloc
3306
3307 check_header direct.h
3308 check_header dlfcn.h
3309 check_header dxva.h
3310 check_header dxva2api.h
3311 check_header io.h
3312 check_header malloc.h
3313 check_header poll.h
3314 check_header sys/mman.h
3315 check_header sys/param.h
3316 check_header sys/resource.h
3317 check_header sys/select.h
3318 check_header sys/time.h
3319 check_header unistd.h
3320 check_header vdpau/vdpau.h
3321 check_header vdpau/vdpau_x11.h
3322 check_header windows.h
3323 check_header X11/extensions/XvMClib.h
3324
3325 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3326 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3327
3328 if ! disabled w32threads && ! enabled pthreads; then
3329 check_func _beginthreadex && enable w32threads
3330 fi
3331
3332 # check for some common methods of building with pthread support
3333 # do this before the optional library checks as some of them require pthreads
3334 if ! disabled pthreads && ! enabled w32threads; then
3335 enable pthreads
3336 if check_func pthread_create; then
3337 :
3338 elif check_func pthread_create -pthread; then
3339 add_cflags -pthread
3340 add_extralibs -pthread
3341 elif check_func pthread_create -pthreads; then
3342 add_cflags -pthreads
3343 add_extralibs -pthreads
3344 elif check_func pthread_create -lpthreadGC2; then
3345 add_extralibs -lpthreadGC2
3346 elif ! check_lib pthread.h pthread_create -lpthread; then
3347 disable pthreads
3348 fi
3349 fi
3350
3351 for thread in $THREADS_LIST; do
3352 if enabled $thread; then
3353 test -n "$thread_type" &&
3354 die "ERROR: Only one thread type must be selected." ||
3355 thread_type="$thread"
3356 fi
3357 done
3358
3359 check_lib math.h sin -lm && LIBM="-lm"
3360 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3361
3362 atan2f_args=2
3363 ldexpf_args=2
3364 powf_args=2
3365
3366 for func in $MATH_FUNCS; do
3367 eval check_mathfunc $func \${${func}_args:-1}
3368 done
3369
3370 # these are off by default, so fail if requested and not available
3371 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3372 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3373 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3374 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3375 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3376 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3377 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
3378 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3379 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3380 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3381 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3382 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3383 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3384 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3385 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3386 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3387 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3388 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3389 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3390 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3391 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3392 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3393 enabled libvpx && {
3394 enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3395 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3396 enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3397 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3398 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3399 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3400 die "ERROR: libx264 version must be >= 0.118."; }
3401 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3402 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3403 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3404 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3405 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3406 die "ERROR: openssl not found"; }
3407
3408 if enabled gnutls; then
3409 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3410 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3411 fi
3412
3413 # libdc1394 check
3414 if enabled libdc1394; then
3415 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3416 enable libdc1394_2; } ||
3417 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3418 enable libdc1394_1; } ||
3419 die "ERROR: No version of libdc1394 found "
3420 fi
3421
3422 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3423 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3424 enable sdl &&
3425 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3426 fi
3427
3428 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3429
3430 check_header linux/fb.h
3431 check_header linux/videodev2.h
3432 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3433
3434 check_header sys/videoio.h
3435
3436 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3437 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3438 # w32api 3.12 had it defined wrong
3439 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3440
3441 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3442 { check_header dev/bktr/ioctl_meteor.h &&
3443 check_header dev/bktr/ioctl_bt848.h; } ||
3444 { check_header machine/ioctl_meteor.h &&
3445 check_header machine/ioctl_bt848.h; } ||
3446 { check_header dev/video/meteor/ioctl_meteor.h &&
3447 check_header dev/video/bktr/ioctl_bt848.h; } ||
3448 check_header dev/ic/bt8xx.h
3449
3450 check_header sndio.h
3451 check_header sys/soundcard.h
3452 check_header soundcard.h
3453
3454 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3455
3456 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3457 check_func jack_port_get_latency_range -ljack
3458
3459 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3460
3461 enabled libcdio &&
3462 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3463
3464 enabled x11grab &&
3465 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3466 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3467 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3468
3469 # check for VDA header
3470 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3471 enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3472 fi
3473
3474 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3475 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3476 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3477 fi
3478
3479 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3480
3481 # add some useful compiler flags if supported
3482 check_cflags -Wdeclaration-after-statement
3483 check_cflags -Wall
3484 check_cflags -Wno-parentheses
3485 check_cflags -Wno-switch
3486 check_cflags -Wno-format-zero-length
3487 check_cflags -Wdisabled-optimization
3488 check_cflags -Wpointer-arith
3489 check_cflags -Wredundant-decls
3490 check_cflags -Wno-pointer-sign
3491 check_cflags -Wcast-qual
3492 check_cflags -Wwrite-strings
3493 check_cflags -Wtype-limits
3494 check_cflags -Wundef
3495 check_cflags -Wmissing-prototypes
3496 check_cflags -Wstrict-prototypes
3497 enabled extra_warnings && check_cflags -Winline
3498
3499 # add some linker flags
3500 check_ldflags -Wl,--warn-common
3501 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3502 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3503
3504 enabled xmm_clobber_test &&
3505 check_ldflags -Wl,--wrap,avcodec_open2 \
3506 -Wl,--wrap,avcodec_decode_audio4 \
3507 -Wl,--wrap,avcodec_decode_video2 \
3508 -Wl,--wrap,avcodec_decode_subtitle2 \
3509 -Wl,--wrap,avcodec_encode_audio2 \
3510 -Wl,--wrap,avcodec_encode_video \
3511 -Wl,--wrap,avcodec_encode_subtitle \
3512 -Wl,--wrap,sws_scale ||
3513 disable xmm_clobber_test
3514
3515 echo "X{};" > $TMPV
3516 if test_ldflags -Wl,--version-script,$TMPV; then
3517 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3518 check_cc <<EOF && enable symver_asm_label
3519 void ff_foo(void) __asm__ ("av_foo@VERSION");
3520 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3521 EOF
3522 check_cc <<EOF && enable symver_gnu_asm
3523 __asm__(".symver ff_foo,av_foo@VERSION");
3524 void ff_foo(void) {}
3525 EOF
3526 fi
3527
3528 if [ -z "$optflags" ]; then
3529 if enabled small; then
3530 optflags=$cflags_size
3531 elif enabled optimizations; then
3532 optflags=$cflags_speed
3533 else
3534 optflags=$cflags_noopt
3535 fi
3536 fi
3537
3538 check_optflags(){
3539 check_cflags "$@"
3540 enabled lto && check_ldflags "$@"
3541 }
3542
3543
3544 if enabled lto; then
3545 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3546 check_cflags -flto
3547 check_ldflags -flto $cpuflags
3548 fi
3549
3550 check_optflags $optflags
3551 check_optflags -fno-math-errno
3552 check_optflags -fno-signed-zeros
3553
3554 if enabled icc; then
3555 # Just warnings, no remarks
3556 check_cflags -w1
3557 # -wd: Disable following warnings
3558 # 144, 167, 556: -Wno-pointer-sign
3559 # 1292: attribute "foo" ignored
3560 # 1419: external declaration in primary source file
3561 # 10006: ignoring unknown option -fno-signed-zeros
3562 # 10148: ignoring unknown option -Wno-parentheses
3563 # 10156: ignoring option '-W'; no argument required
3564 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3565 # 11030: Warning unknown option --as-needed
3566 # 10156: ignoring option '-export'; no argument required
3567 check_ldflags -wd10156,11030
3568 # Allow to compile with optimizations
3569 check_ldflags -march=$cpu
3570 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3571 enable ebp_available
3572 if enabled x86_32; then
3573 icc_version=$($cc -dumpversion)
3574 test ${icc_version%%.*} -ge 11 &&
3575 check_cflags -falign-stack=maintain-16-byte ||
3576 disable aligned_stack
3577 fi
3578 elif enabled ccc; then
3579 # disable some annoying warnings
3580 add_cflags -msg_disable bitnotint
3581 add_cflags -msg_disable mixfuncvoid
3582 add_cflags -msg_disable nonstandcast
3583 add_cflags -msg_disable unsupieee
3584 elif enabled gcc; then
3585 check_optflags -fno-tree-vectorize
3586 check_cflags -Werror=implicit-function-declaration
3587 check_cflags -Werror=missing-prototypes
3588 check_cflags -Werror=declaration-after-statement
3589 check_cflags -Werror=vla
3590 elif enabled llvm_gcc; then
3591 check_cflags -mllvm -stack-alignment=16
3592 elif enabled clang; then
3593 check_cflags -mllvm -stack-alignment=16
3594 check_cflags -Qunused-arguments
3595 check_cflags -Werror=implicit-function-declaration
3596 check_cflags -Werror=missing-prototypes
3597 elif enabled armcc; then
3598 # 2523: use of inline assembler is deprecated
3599 add_cflags -W${armcc_opt},--diag_suppress=2523
3600 add_cflags -W${armcc_opt},--diag_suppress=1207
3601 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3602 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3603 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
3604 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
3605 elif enabled tms470; then
3606 add_cflags -pds=824 -pds=837
3607 elif enabled pathscale; then
3608 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3609 elif enabled msvc; then
3610 enabled x86_32 && disable aligned_stack
3611 fi
3612
3613 case $target_os in
3614 osf1)
3615 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
3616 ;;
3617 plan9)
3618 add_cppflags -Dmain=plan9_main
3619 ;;
3620 esac
3621
3622 enabled_any $THREADS_LIST && enable threads
3623
3624 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3625
3626 check_deps $CONFIG_LIST \
3627 $CONFIG_EXTRA \
3628 $HAVE_LIST \
3629 $ALL_COMPONENTS \
3630
3631 ! enabled_any memalign posix_memalign aligned_malloc &&
3632 enabled_any $need_memalign && enable memalign_hack
3633
3634 echo "install prefix $prefix"
3635 echo "source path $source_path"
3636 echo "C compiler $cc"
3637 echo "ARCH $arch ($cpu)"
3638 if test "$build_suffix" != ""; then
3639 echo "build suffix $build_suffix"
3640 fi
3641 if test "$extra_version" != ""; then
3642 echo "version string suffix $extra_version"
3643 fi
3644 echo "big-endian ${bigendian-no}"
3645 echo "runtime cpu detection ${runtime_cpudetect-no}"
3646 if enabled x86; then
3647 echo "${yasmexe} ${yasm-no}"
3648 echo "MMX enabled ${mmx-no}"
3649 echo "MMXEXT enabled ${mmxext-no}"
3650 echo "3DNow! enabled ${amd3dnow-no}"
3651 echo "3DNow! extended enabled ${amd3dnowext-no}"
3652 echo "SSE enabled ${sse-no}"
3653 echo "SSSE3 enabled ${ssse3-no}"
3654 echo "AVX enabled ${avx-no}"
3655 echo "FMA4 enabled ${fma4-no}"
3656 echo "CMOV enabled ${cmov-no}"
3657 echo "CMOV is fast ${fast_cmov-no}"
3658 echo "EBX available ${ebx_available-no}"
3659 echo "EBP available ${ebp_available-no}"
3660 fi
3661 if enabled arm; then
3662 echo "ARMv5TE enabled ${armv5te-no}"
3663 echo "ARMv6 enabled ${armv6-no}"
3664 echo "ARMv6T2 enabled ${armv6t2-no}"
3665 echo "ARM VFP enabled ${armvfp-no}"
3666 echo "NEON enabled ${neon-no}"
3667 fi
3668 if enabled ppc; then
3669 echo "AltiVec enabled ${altivec-no}"
3670 echo "PPC 4xx optimizations ${ppc4xx-no}"
3671 echo "dcbzl available ${dcbzl-no}"
3672 fi
3673 if enabled sparc; then
3674 echo "VIS enabled ${vis-no}"
3675 fi
3676 echo "debug symbols ${debug-no}"
3677 echo "optimize for size ${small-no}"
3678 echo "optimizations ${optimizations-no}"
3679 echo "static ${static-no}"
3680 echo "shared ${shared-no}"
3681 echo "new filter support ${avfilter-no}"
3682 echo "network support ${network-no}"
3683 echo "threading support ${thread_type-no}"
3684 echo "safe bitstream reader ${safe_bitstream_reader-no}"
3685 echo "SDL support ${sdl-no}"
3686 echo "libdxva2 enabled ${dxva2-no}"
3687 echo "libva enabled ${vaapi-no}"
3688 echo "libvdpau enabled ${vdpau-no}