7525e2299fb243d09de76ed072d5c877d9154c19
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --libdir=DIR install libs in DIR [PREFIX/lib]
85 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
86 --incdir=DIR install includes in DIR [PREFIX/include]
87 --mandir=DIR install man page in DIR [PREFIX/share/man]
88
89 Licensing options:
90 --enable-gpl allow use of GPL code, the resulting libs
91 and binaries will be under GPL [no]
92 --enable-version3 upgrade (L)GPL to version 3 [no]
93 --enable-nonfree allow use of nonfree code, the resulting libs
94 and binaries will be unredistributable [no]
95
96 Configuration options:
97 --disable-static do not build static libraries [no]
98 --enable-shared build shared libraries [no]
99 --enable-small optimize for size instead of speed
100 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
101 --enable-gray enable full grayscale support (slower color)
102 --disable-swscale-alpha disable alpha channel support in swscale
103 --disable-all disable building components, libraries and programs
104
105 Program options:
106 --disable-programs do not build command line programs
107 --disable-avconv disable avconv build
108 --disable-avplay disable avplay build
109 --disable-avprobe disable avprobe build
110 --disable-avserver disable avserver build
111
112 Component options:
113 --disable-doc do not build documentation
114 --disable-avdevice disable libavdevice build
115 --disable-avcodec disable libavcodec build
116 --disable-avformat disable libavformat build
117 --disable-avutil disable libavutil build
118 --disable-swscale disable libswscale build
119 --disable-avfilter disable video filter support [no]
120 --disable-avresample disable libavresample build [no]
121 --disable-pthreads disable pthreads [auto]
122 --disable-w32threads disable Win32 threads [auto]
123 --disable-network disable network support [no]
124 --disable-dct disable DCT 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
131 Hardware accelerators:
132 --enable-dxva2 enable DXVA2 code
133 --enable-vaapi enable VAAPI code
134 --enable-vda enable VDA code
135 --enable-vdpau enable VDPAU code
136
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
173
174 External library support:
175 --enable-avisynth enable reading of AVISynth script files [no]
176 --enable-bzlib enable bzlib [autodetect]
177 --enable-frei0r enable frei0r video filtering
178 --enable-gnutls enable gnutls [no]
179 --enable-libcdio enable audio CD grabbing with libcdio
180 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
181 and libraw1394 [no]
182 --enable-libfaac enable AAC encoding via libfaac [no]
183 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
184 --enable-libfreetype enable libfreetype [no]
185 --enable-libgsm enable GSM de/encoding via libgsm [no]
186 --enable-libilbc enable iLBC de/encoding via libilbc [no]
187 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
188 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
189 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
190 --enable-libopencv enable video filtering via libopencv [no]
191 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
192 --enable-libopus enable Opus decoding via libopus [no]
193 --enable-libpulse enable Pulseaudio input via libpulse [no]
194 --enable-librtmp enable RTMP[E] support via librtmp [no]
195 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
196 --enable-libspeex enable Speex de/encoding via libspeex [no]
197 --enable-libtheora enable Theora encoding via libtheora [no]
198 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
199 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
200 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
201 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
202 --enable-libx264 enable H.264 encoding via x264 [no]
203 --enable-libxavs enable AVS encoding via xavs [no]
204 --enable-libxvid enable Xvid encoding via xvidcore,
205 native MPEG-4/Xvid encoder exists [no]
206 --enable-openssl enable openssl [no]
207 --enable-x11grab enable X11 grabbing [no]
208 --enable-zlib enable zlib [autodetect]
209
210 Advanced options (experts only):
211 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
212 --enable-cross-compile assume a cross-compiler is used
213 --sysroot=PATH root of cross-build tree
214 --sysinclude=PATH location of cross-build system headers
215 --target-os=OS compiler targets OS [$target_os]
216 --target-exec=CMD command to run executables on target
217 --target-path=DIR path to view of build directory on target
218 --toolchain=NAME set tool defaults according to NAME
219 --nm=NM use nm tool
220 --ar=AR use archive tool AR [$ar_default]
221 --as=AS use assembler AS [$as_default]
222 --cc=CC use C compiler CC [$cc_default]
223 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
224 --ld=LD use linker LD
225 --host-cc=HOSTCC use host C compiler HOSTCC
226 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
227 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
228 --host-ld=HOSTLD use host linker HOSTLD
229 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
230 --host-libs=HLIBS use libs HLIBS when linking for host
231 --host-os=OS compiler host OS [$target_os]
232 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
233 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
234 --extra-libs=ELIBS add ELIBS [$ELIBS]
235 --extra-version=STRING version string suffix []
236 --optflags=OPTFLAGS override optimization-related compiler flags
237 --build-suffix=SUFFIX library name suffix []
238 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
239 --arch=ARCH select architecture [$arch]
240 --cpu=CPU select the minimum required CPU (affects
241 instruction selection, may crash on older CPUs)
242 --enable-pic build position-independent code
243 --enable-sram allow use of on-chip SRAM
244 --enable-thumb compile for Thumb instruction set
245 --disable-symver disable symbol versioning
246 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
247 --disable-safe-bitstream-reader
248 disable buffer boundary checking in bitreaders
249 (faster, but may crash)
250 --enable-memalign-hack emulate memalign, interferes with memory debuggers
251 --enable-lto use link-time optimization
252
253 Optimization options (experts only):
254 --disable-asm disable all assembler optimizations
255 --disable-altivec disable AltiVec optimizations
256 --disable-amd3dnow disable 3DNow! optimizations
257 --disable-amd3dnowext disable 3DNow! extended optimizations
258 --disable-mmx disable MMX optimizations
259 --disable-mmxext disable MMXEXT optimizations
260 --disable-sse disable SSE optimizations
261 --disable-sse2 disable SSE2 optimizations
262 --disable-sse3 disable SSE3 optimizations
263 --disable-ssse3 disable SSSE3 optimizations
264 --disable-sse4 disable SSE4 optimizations
265 --disable-sse42 disable SSE4.2 optimizations
266 --disable-avx disable AVX optimizations
267 --disable-fma4 disable FMA4 optimizations
268 --disable-armv5te disable armv5te optimizations
269 --disable-armv6 disable armv6 optimizations
270 --disable-armv6t2 disable armv6t2 optimizations
271 --disable-vfp disable VFP optimizations
272 --disable-neon disable NEON optimizations
273 --disable-vis disable VIS optimizations
274 --disable-inline-asm disable use of inline assembler
275 --disable-yasm disable use of yasm assembler
276
277 Developer options (useful when working on Libav itself):
278 --disable-debug disable debugging symbols
279 --enable-debug=LEVEL set the debug level [$debuglevel]
280 --disable-optimizations disable compiler optimizations
281 --enable-extra-warnings enable more compiler warnings
282 --samples=PATH location of test samples for FATE, if not set use
283 \$LIBAV_SAMPLES at make invocation time.
284 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
285 should be used only for debugging purposes)
286 --enable-random randomly enable/disable components
287 --disable-random
288 --enable-random=LIST randomly enable/disable specific components or
289 --disable-random=LIST component groups. LIST is a comma-separated list
290 of NAME[:PROB] entries where NAME is a component
291 (group) and PROB the probability associated with
292 NAME (default 0.5).
293 --random-seed=VALUE seed value for --enable/disable-random
294
295 NOTE: Object files are built at the place where configure is launched.
296 EOF
297 exit 0
298 }
299
300 quotes='""'
301
302 log(){
303 echo "$@" >> $logfile
304 }
305
306 log_file(){
307 log BEGIN $1
308 pr -n -t $1 >> $logfile
309 log END $1
310 }
311
312 echolog(){
313 log "$@"
314 echo "$@"
315 }
316
317 warn(){
318 log "WARNING: $*"
319 WARNINGS="${WARNINGS}WARNING: $*\n"
320 }
321
322 die(){
323 echolog "$@"
324 cat <<EOF
325
326 If you think configure made a mistake, make sure you are using the latest
327 version from Git. If the latest version fails, report the problem to the
328 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
329 EOF
330 if disabled logging; then
331 cat <<EOF
332 Rerun configure with logging enabled (do not use --disable-logging), and
333 include the log this produces with your report.
334 EOF
335 else
336 cat <<EOF
337 Include the log file "$logfile" produced by configure as this will help
338 solving the problem.
339 EOF
340 fi
341 exit 1
342 }
343
344 # Avoid locale weirdness, besides we really just want to translate ASCII.
345 toupper(){
346 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
347 }
348
349 tolower(){
350 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
351 }
352
353 c_escape(){
354 echo "$*" | sed 's/["\\]/\\\0/g'
355 }
356
357 sh_quote(){
358 v=$(echo "$1" | sed "s/'/'\\\\''/g")
359 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
360 echo "$v"
361 }
362
363 cleanws(){
364 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
365 }
366
367 filter(){
368 pat=$1
369 shift
370 for v; do
371 eval "case $v in $pat) echo $v ;; esac"
372 done
373 }
374
375 filter_out(){
376 pat=$1
377 shift
378 for v; do
379 eval "case $v in $pat) ;; *) echo $v ;; esac"
380 done
381 }
382
383 map(){
384 m=$1
385 shift
386 for v; do eval $m; done
387 }
388
389 add_suffix(){
390 suffix=$1
391 shift
392 for v; do echo ${v}${suffix}; done
393 }
394
395 set_all(){
396 value=$1
397 shift
398 for var in $*; do
399 eval $var=$value
400 done
401 }
402
403 set_weak(){
404 value=$1
405 shift
406 for var; do
407 eval : \${$var:=$value}
408 done
409 }
410
411 sanitize_var_name(){
412 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
413 }
414
415 set_safe(){
416 var=$1
417 shift
418 eval $(sanitize_var_name "$var")='$*'
419 }
420
421 get_safe(){
422 eval echo \$$(sanitize_var_name "$1")
423 }
424
425 pushvar(){
426 for var in $*; do
427 eval level=\${${var}_level:=0}
428 eval ${var}_${level}="\$$var"
429 eval ${var}_level=$(($level+1))
430 done
431 }
432
433 popvar(){
434 for var in $*; do
435 eval level=\${${var}_level:-0}
436 test $level = 0 && continue
437 eval level=$(($level-1))
438 eval $var="\${${var}_${level}}"
439 eval ${var}_level=$level
440 eval unset ${var}_${level}
441 done
442 }
443
444 enable(){
445 set_all yes $*
446 }
447
448 disable(){
449 set_all no $*
450 }
451
452 enable_weak(){
453 set_weak yes $*
454 }
455
456 disable_weak(){
457 set_weak no $*
458 }
459
460 enable_safe(){
461 for var; do
462 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
463 done
464 }
465
466 disable_safe(){
467 for var; do
468 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
469 done
470 }
471
472 do_enable_deep(){
473 for var; do
474 enabled $var && continue
475 eval sel="\$${var}_select"
476 eval sgs="\$${var}_suggest"
477 pushvar var sgs
478 enable_deep $sel
479 popvar sgs
480 enable_deep_weak $sgs
481 popvar var
482 done
483 }
484
485 enable_deep(){
486 do_enable_deep $*
487 enable $*
488 }
489
490 enable_deep_weak(){
491 do_enable_deep $*
492 enable_weak $*
493 }
494
495 enabled(){
496 test "${1#!}" = "$1" && op== || op=!=
497 eval test "x\$${1#!}" $op "xyes"
498 }
499
500 disabled(){
501 test "${1#!}" = "$1" && op== || op=!=
502 eval test "x\$${1#!}" $op "xno"
503 }
504
505 enabled_all(){
506 for opt; do
507 enabled $opt || return 1
508 done
509 }
510
511 disabled_all(){
512 for opt; do
513 disabled $opt || return 1
514 done
515 }
516
517 enabled_any(){
518 for opt; do
519 enabled $opt && return 0
520 done
521 }
522
523 disabled_any(){
524 for opt; do
525 disabled $opt && return 0
526 done
527 return 1
528 }
529
530 set_default(){
531 for opt; do
532 eval : \${$opt:=\$${opt}_default}
533 done
534 }
535
536 is_in(){
537 value=$1
538 shift
539 for var in $*; do
540 [ $var = $value ] && return 0
541 done
542 return 1
543 }
544
545 do_check_deps(){
546 for cfg; do
547 cfg="${cfg#!}"
548 enabled ${cfg}_checking && die "Circular dependency for $cfg."
549 disabled ${cfg}_checking && continue
550 enable ${cfg}_checking
551 append allopts $cfg
552
553 eval dep_all="\$${cfg}_deps"
554 eval dep_any="\$${cfg}_deps_any"
555 eval dep_sel="\$${cfg}_select"
556 eval dep_sgs="\$${cfg}_suggest"
557 eval dep_ifa="\$${cfg}_if"
558 eval dep_ifn="\$${cfg}_if_any"
559
560 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
561 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
562 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
563
564 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
565 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
566 enabled_all $dep_all || disable $cfg
567 enabled_any $dep_any || disable $cfg
568 disabled_any $dep_sel && disable $cfg
569
570 if enabled $cfg; then
571 enable_deep $dep_sel
572 enable_deep_weak $dep_sgs
573 fi
574
575 disable ${cfg}_checking
576 done
577 }
578
579 check_deps(){
580 unset allopts
581
582 do_check_deps "$@"
583
584 for cfg in $allopts; do
585 enabled $cfg || continue
586 eval dep_extralibs="\$${cfg}_extralibs"
587 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
588 done
589 }
590
591 print_config(){
592 pfx=$1
593 files=$2
594 shift 2
595 map 'eval echo "$v \${$v:-no}"' "$@" |
596 awk "BEGIN { split(\"$files\", files) }
597 {
598 c = \"$pfx\" toupper(\$1);
599 v = \$2;
600 sub(/yes/, 1, v);
601 sub(/no/, 0, v);
602 for (f in files) {
603 file = files[f];
604 if (file ~ /\\.h\$/) {
605 printf(\"#define %s %d\\n\", c, v) >>file;
606 } else if (file ~ /\\.asm\$/) {
607 printf(\"%%define %s %d\\n\", c, v) >>file;
608 } else if (file ~ /\\.mak\$/) {
609 n = -v ? \"\" : \"!\";
610 printf(\"%s%s=yes\\n\", n, c) >>file;
611 }
612 }
613 }"
614 }
615
616 print_enabled(){
617 suf=$1
618 shift
619 for v; do
620 enabled $v && printf "%s\n" ${v%$suf};
621 done
622 }
623
624 append(){
625 var=$1
626 shift
627 eval "$var=\"\$$var $*\""
628 }
629
630 prepend(){
631 var=$1
632 shift
633 eval "$var=\"$* \$$var\""
634 }
635
636 add_cppflags(){
637 append CPPFLAGS "$@"
638 }
639
640 add_cflags(){
641 append CFLAGS $($cflags_filter "$@")
642 }
643
644 add_asflags(){
645 append ASFLAGS $($asflags_filter "$@")
646 }
647
648 add_ldflags(){
649 append LDFLAGS $($ldflags_filter "$@")
650 }
651
652 add_extralibs(){
653 prepend extralibs $($ldflags_filter "$@")
654 }
655
656 add_host_cppflags(){
657 append host_cppflags "$@"
658 }
659
660 add_host_cflags(){
661 append host_cflags $($host_cflags_filter "$@")
662 }
663
664 add_host_ldflags(){
665 append host_ldflags $($host_ldflags_filter "$@")
666 }
667
668 add_compat(){
669 append compat_objs $1
670 shift
671 map 'add_cppflags -D$v' "$@"
672 }
673
674 check_cmd(){
675 log "$@"
676 "$@" >> $logfile 2>&1
677 }
678
679 cc_o(){
680 eval printf '%s\\n' $CC_O
681 }
682
683 cc_e(){
684 eval printf '%s\\n' $CC_E
685 }
686
687 check_cc(){
688 log check_cc "$@"
689 cat > $TMPC
690 log_file $TMPC
691 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
692 }
693
694 check_cpp(){
695 log check_cpp "$@"
696 cat > $TMPC
697 log_file $TMPC
698 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
699 }
700
701 as_o(){
702 eval printf '%s\\n' $AS_O
703 }
704
705 check_as(){
706 log check_as "$@"
707 cat > $TMPS
708 log_file $TMPS
709 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
710 }
711
712 check_inline_asm(){
713 log check_inline_asm "$@"
714 name="$1"
715 code="$2"
716 shift 2
717 disable $name
718 check_cc "$@" <<EOF && enable $name
719 void foo(void){ __asm__ volatile($code); }
720 EOF
721 }
722
723 check_insn(){
724 log check_insn "$@"
725 check_inline_asm ${1}_inline "\"$2\""
726 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
727 }
728
729 check_yasm(){
730 log check_yasm "$@"
731 echo "$1" > $TMPS
732 log_file $TMPS
733 shift 1
734 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
735 }
736
737 ld_o(){
738 eval printf '%s\\n' $LD_O
739 }
740
741 check_ld(){
742 log check_ld "$@"
743 flags=$(filter_out '-l*' "$@")
744 libs=$(filter '-l*' "$@")
745 check_cc $($cflags_filter $flags) || return
746 flags=$($ldflags_filter $flags)
747 libs=$($ldflags_filter $libs)
748 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
749 }
750
751 check_code(){
752 log check_code "$@"
753 check=$1
754 headers=$2
755 code=$3
756 shift 3
757 {
758 for hdr in $headers; do
759 echo "#include <$hdr>"
760 done
761 echo "int main(void) { $code; return 0; }"
762 } | check_$check "$@"
763 }
764
765 check_cppflags(){
766 log check_cppflags "$@"
767 check_cc "$@" <<EOF && append CPPFLAGS "$@"
768 int x;
769 EOF
770 }
771
772 check_cflags(){
773 log check_cflags "$@"
774 set -- $($cflags_filter "$@")
775 check_cc "$@" <<EOF && append CFLAGS "$@"
776 int x;
777 EOF
778 }
779
780 test_ldflags(){
781 log test_ldflags "$@"
782 check_ld "$@" <<EOF
783 int main(void){ return 0; }
784 EOF
785 }
786
787 check_ldflags(){
788 log check_ldflags "$@"
789 test_ldflags "$@" && add_ldflags "$@"
790 }
791
792 check_header(){
793 log check_header "$@"
794 header=$1
795 shift
796 disable_safe $header
797 check_cpp "$@" <<EOF && enable_safe $header
798 #include <$header>
799 int x;
800 EOF
801 }
802
803 check_func(){
804 log check_func "$@"
805 func=$1
806 shift
807 disable $func
808 check_ld "$@" <<EOF && enable $func
809 extern int $func();
810 int main(void){ $func(); }
811 EOF
812 }
813
814 check_mathfunc(){
815 log check_mathfunc "$@"
816 func=$1
817 narg=$2
818 shift 2
819 test $narg = 2 && args="f, g" || args="f"
820 disable $func
821 check_ld "$@" <<EOF && enable $func
822 #include <math.h>
823 float foo(float f, float g) { return $func($args); }
824 int main(void){ return 0; }
825 EOF
826 }
827
828 check_func_headers(){
829 log check_func_headers "$@"
830 headers=$1
831 funcs=$2
832 shift 2
833 {
834 for hdr in $headers; do
835 echo "#include <$hdr>"
836 done
837 for func in $funcs; do
838 echo "long check_$func(void) { return (long) $func; }"
839 done
840 echo "int main(void) { return 0; }"
841 } | check_ld "$@" && enable $funcs && enable_safe $headers
842 }
843
844 check_cpp_condition(){
845 log check_cpp_condition "$@"
846 header=$1
847 condition=$2
848 shift 2
849 check_cpp "$@" <<EOF
850 #include <$header>
851 #if !($condition)
852 #error "unsatisfied condition: $condition"
853 #endif
854 EOF
855 }
856
857 check_lib(){
858 log check_lib "$@"
859 header="$1"
860 func="$2"
861 shift 2
862 check_header $header && check_func $func "$@" && add_extralibs "$@"
863 }
864
865 check_lib2(){
866 log check_lib2 "$@"
867 headers="$1"
868 funcs="$2"
869 shift 2
870 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
871 }
872
873 check_pkg_config(){
874 log check_pkg_config "$@"
875 pkg="$1"
876 headers="$2"
877 funcs="$3"
878 shift 3
879 $pkg_config --exists $pkg || return
880 pkg_cflags=$($pkg_config --cflags $pkg)
881 pkg_libs=$($pkg_config --libs $pkg)
882 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
883 set_safe ${pkg}_cflags $pkg_cflags &&
884 set_safe ${pkg}_libs $pkg_libs
885 }
886
887 check_exec(){
888 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
889 }
890
891 check_exec_crash(){
892 code=$(cat)
893
894 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
895 # are safe but may not be available everywhere. Thus we use
896 # raise(SIGTERM) instead. The check is run in a subshell so we
897 # can redirect the "Terminated" message from the shell. SIGBUS
898 # is not defined by standard C so it is used conditionally.
899
900 (check_exec "$@") >> $logfile 2>&1 <<EOF
901 #include <signal.h>
902 static void sighandler(int sig){
903 raise(SIGTERM);
904 }
905 int foo(void){
906 $code
907 }
908 int main(void){
909 signal(SIGILL, sighandler);
910 signal(SIGFPE, sighandler);
911 signal(SIGSEGV, sighandler);
912 #ifdef SIGBUS
913 signal(SIGBUS, sighandler);
914 #endif
915 foo();
916 }
917 EOF
918 }
919
920 check_type(){
921 log check_type "$@"
922 headers=$1
923 type=$2
924 shift 2
925 disable_safe "$type"
926 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
927 }
928
929 check_struct(){
930 log check_struct "$@"
931 headers=$1
932 struct=$2
933 member=$3
934 shift 3
935 disable_safe "${struct}_${member}"
936 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
937 enable_safe "${struct}_${member}"
938 }
939
940 check_builtin(){
941 log check_builtin "$@"
942 name=$1
943 headers=$2
944 builtin=$3
945 shift 3
946 disable "$name"
947 check_code ld "$headers" "$builtin" "$@" && enable "$name"
948 }
949
950 require(){
951 name="$1"
952 header="$2"
953 func="$3"
954 shift 3
955 check_lib $header $func "$@" || die "ERROR: $name not found"
956 }
957
958 require2(){
959 name="$1"
960 headers="$2"
961 func="$3"
962 shift 3
963 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
964 }
965
966 require_pkg_config(){
967 pkg="$1"
968 check_pkg_config "$@" || die "ERROR: $pkg not found"
969 add_cflags $(get_safe ${pkg}_cflags)
970 add_extralibs $(get_safe ${pkg}_libs)
971 }
972
973 hostcc_o(){
974 eval printf '%s\\n' $HOSTCC_O
975 }
976
977 check_host_cc(){
978 log check_host_cc "$@"
979 cat > $TMPC
980 log_file $TMPC
981 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
982 }
983
984 check_host_cppflags(){
985 log check_host_cppflags "$@"
986 check_host_cc "$@" <<EOF && append host_cppflags "$@"
987 int x;
988 EOF
989 }
990
991 check_host_cflags(){
992 log check_host_cflags "$@"
993 set -- $($host_cflags_filter "$@")
994 check_host_cc "$@" <<EOF && append host_cflags "$@"
995 int x;
996 EOF
997 }
998
999 apply(){
1000 file=$1
1001 shift
1002 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1003 }
1004
1005 cp_if_changed(){
1006 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1007 mkdir -p "$(dirname $2)"
1008 $cp_f "$1" "$2"
1009 }
1010
1011 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1012 # system-dependent things.
1013
1014 COMPONENT_LIST="
1015 bsfs
1016 decoders
1017 demuxers
1018 encoders
1019 filters
1020 hwaccels
1021 indevs
1022 muxers
1023 outdevs
1024 parsers
1025 protocols
1026 "
1027
1028 EXTERNAL_LIBRARY_LIST="
1029 avisynth
1030 bzlib
1031 frei0r
1032 gnutls
1033 libcdio
1034 libdc1394
1035 libfaac
1036 libfdk_aac
1037 libfreetype
1038 libgsm
1039 libilbc
1040 libmp3lame
1041 libopencore_amrnb
1042 libopencore_amrwb
1043 libopencv
1044 libopenjpeg
1045 libopus
1046 libpulse
1047 librtmp
1048 libschroedinger
1049 libspeex
1050 libtheora
1051 libvo_aacenc
1052 libvo_amrwbenc
1053 libvorbis
1054 libvpx
1055 libx264
1056 libxavs
1057 libxvid
1058 openssl
1059 x11grab
1060 zlib
1061 "
1062
1063 HWACCEL_LIST="
1064 dxva2
1065 vaapi
1066 vda
1067 vdpau
1068 "
1069 LIBRARY_LIST="
1070 avcodec
1071 avdevice
1072 avfilter
1073 avformat
1074 avresample
1075 avutil
1076 swscale
1077 "
1078
1079 PROGRAM_LIST="
1080 avconv
1081 avplay
1082 avprobe
1083 avserver
1084 "
1085
1086 CONFIG_LIST="
1087 $COMPONENT_LIST
1088 $EXTERNAL_LIBRARY_LIST
1089 $HWACCEL_LIST
1090 $LIBRARY_LIST
1091 $PROGRAM_LIST
1092 dct
1093 doc
1094 fft
1095 gpl
1096 gray
1097 hardcoded_tables
1098 lsp
1099 lzo
1100 mdct
1101 memalign_hack
1102 network
1103 nonfree
1104 pic
1105 rdft
1106 runtime_cpudetect
1107 safe_bitstream_reader
1108 shared
1109 small
1110 sram
1111 static
1112 swscale_alpha
1113 thumb
1114 version3
1115 xmm_clobber_test
1116 "
1117
1118 THREADS_LIST='
1119 pthreads
1120 w32threads
1121 '
1122
1123 ARCH_LIST='
1124 aarch64
1125 alpha
1126 arm
1127 avr32
1128 avr32_ap
1129 avr32_uc
1130 bfin
1131 ia64
1132 m68k
1133 mips
1134 mips64
1135 parisc
1136 ppc
1137 ppc64
1138 s390
1139 sh4
1140 sparc
1141 sparc64
1142 tilegx
1143 tilepro
1144 tomi
1145 x86
1146 x86_32
1147 x86_64
1148 '
1149
1150 ARCH_EXT_LIST_ARM='
1151 armv5te
1152 armv6
1153 armv6t2
1154 neon
1155 vfp
1156 vfpv3
1157 '
1158
1159 ARCH_EXT_LIST_X86='
1160 amd3dnow
1161 amd3dnowext
1162 avx
1163 fma4
1164 mmx
1165 mmxext
1166 sse
1167 sse2
1168 sse3
1169 sse4
1170 sse42
1171 ssse3
1172 '
1173
1174 ARCH_EXT_LIST="
1175 $ARCH_EXT_LIST_ARM
1176 $ARCH_EXT_LIST_X86
1177 altivec
1178 ppc4xx
1179 vis
1180 "
1181
1182 HAVE_LIST_CMDLINE='
1183 inline_asm
1184 symver
1185 yasm
1186 '
1187
1188 HAVE_LIST_PUB='
1189 bigendian
1190 fast_unaligned
1191 '
1192
1193 MATH_FUNCS="
1194 atanf
1195 atan2f
1196 cbrtf
1197 cosf
1198 exp2
1199 exp2f
1200 expf
1201 isinf
1202 isnan
1203 ldexpf
1204 llrint
1205 llrintf
1206 log2
1207 log2f
1208 log10f
1209 lrint
1210 lrintf
1211 powf
1212 rint
1213 round
1214 roundf
1215 sinf
1216 trunc
1217 truncf
1218 "
1219
1220 HAVE_LIST="
1221 $ARCH_EXT_LIST
1222 $(add_suffix _external $ARCH_EXT_LIST)
1223 $(add_suffix _inline $ARCH_EXT_LIST)
1224 $HAVE_LIST_CMDLINE
1225 $HAVE_LIST_PUB
1226 $THREADS_LIST
1227 $MATH_FUNCS
1228 aligned_malloc
1229 aligned_stack
1230 alsa_asoundlib_h
1231 altivec_h
1232 arpa_inet_h
1233 asm_mod_q
1234 asm_mod_y
1235 attribute_may_alias
1236 attribute_packed
1237 cdio_paranoia_h
1238 cdio_paranoia_paranoia_h
1239 closesocket
1240 cmov
1241 CommandLineToArgvW
1242 cpunop
1243 CryptGenRandom
1244 dcbzl
1245 dev_bktr_ioctl_bt848_h
1246 dev_bktr_ioctl_meteor_h
1247 dev_ic_bt8xx_h
1248 dev_video_bktr_ioctl_bt848_h
1249 dev_video_meteor_ioctl_meteor_h
1250 direct_h
1251 dlfcn_h
1252 dlopen
1253 dos_paths
1254 dxva_h
1255 ebp_available
1256 ebx_available
1257 fast_64bit
1258 fast_clz
1259 fast_cmov
1260 fcntl
1261 fork
1262 getaddrinfo
1263 gethrtime
1264 getopt
1265 GetProcessAffinityMask
1266 GetProcessMemoryInfo
1267 GetProcessTimes
1268 GetSystemTimeAsFileTime
1269 getrusage
1270 getservbyport
1271 gettimeofday
1272 gnu_as
1273 gsm_h
1274 ibm_asm
1275 inet_aton
1276 io_h
1277 isatty
1278 jack_port_get_latency_range
1279 ldbrx
1280 libdc1394_1
1281 libdc1394_2
1282 local_aligned_16
1283 local_aligned_8
1284 localtime_r
1285 loongson
1286 machine_ioctl_bt848_h
1287 machine_ioctl_meteor_h
1288 malloc_h
1289 MapViewOfFile
1290 memalign
1291 mkstemp
1292 mm_empty
1293 mmap
1294 mprotect
1295 msvcrt
1296 nanosleep
1297 poll_h
1298 posix_memalign
1299 rdtsc
1300 sched_getaffinity
1301 sdl
1302 sdl_video_size
1303 SetConsoleTextAttribute
1304 setmode
1305 setrlimit
1306 Sleep
1307 sndio_h
1308 socklen_t
1309 soundcard_h
1310 strerror_r
1311 strptime
1312 strtok_r
1313 struct_addrinfo
1314 struct_group_source_req
1315 struct_ip_mreq_source
1316 struct_ipv6_mreq
1317 struct_pollfd
1318 struct_rusage_ru_maxrss
1319 struct_sockaddr_in6
1320 struct_sockaddr_sa_len
1321 struct_sockaddr_storage
1322 struct_v4l2_frmivalenum_discrete
1323 symver_asm_label
1324 symver_gnu_asm
1325 sysconf
1326 sysctl
1327 sys_mman_h
1328 sys_param_h
1329 sys_resource_h
1330 sys_select_h
1331 sys_soundcard_h
1332 sys_time_h
1333 sys_videoio_h
1334 threads
1335 unistd_h
1336 usleep
1337 vfp_args
1338 VirtualAlloc
1339 windows_h
1340 winsock2_h
1341 xform_asm
1342 xmm_clobbers
1343 "
1344
1345 # options emitted with CONFIG_ prefix but not available on the command line
1346 CONFIG_EXTRA="
1347 aandcttables
1348 ac3dsp
1349 audio_frame_queue
1350 error_resilience
1351 gcrypt
1352 golomb
1353 gplv3
1354 h264chroma
1355 h264dsp
1356 h264pred
1357 h264qpel
1358 huffman
1359 lgplv3
1360 lpc
1361 mpegaudio
1362 mpegaudiodsp
1363 mpegvideo
1364 mpegvideoenc
1365 nettle
1366 rangecoder
1367 rtpdec
1368 rtpenc_chain
1369 sinewin
1370 videodsp
1371 vp3dsp
1372 "
1373
1374 CMDLINE_SELECT="
1375 $ARCH_EXT_LIST
1376 $CONFIG_LIST
1377 $HAVE_LIST_CMDLINE
1378 $THREADS_LIST
1379 asm
1380 cross_compile
1381 debug
1382 extra_warnings
1383 logging
1384 lto
1385 optimizations
1386 "
1387
1388 PATHS_LIST='
1389 bindir
1390 datadir
1391 incdir
1392 libdir
1393 mandir
1394 prefix
1395 shlibdir
1396 '
1397
1398 CMDLINE_SET="
1399 $PATHS_LIST
1400 ar
1401 arch
1402 as
1403 build_suffix
1404 cc
1405 cpu
1406 cross_prefix
1407 dep_cc
1408 extra_version
1409 host_cc
1410 host_cflags
1411 host_ld
1412 host_ldflags
1413 host_libs
1414 host_os
1415 ld
1416 logfile
1417 malloc_prefix
1418 nm
1419 optflags
1420 pkg_config
1421 random_seed
1422 samples
1423 sysinclude
1424 sysroot
1425 target_exec
1426 target_os
1427 target_path
1428 toolchain
1429 "
1430
1431 CMDLINE_APPEND="
1432 extra_cflags
1433 host_cppflags
1434 "
1435
1436 # code dependency declarations
1437
1438 # architecture extensions
1439
1440 armv5te_deps="arm"
1441 armv6_deps="arm"
1442 armv6t2_deps="arm"
1443 neon_deps="arm"
1444 vfp_deps="arm"
1445 vfpv3_deps="vfp"
1446
1447 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1448
1449 altivec_deps="ppc"
1450 ppc4xx_deps="ppc"
1451
1452 vis_deps="sparc"
1453
1454 x86_64_suggest="cmov fast_cmov"
1455
1456 amd3dnow_deps="mmx"
1457 amd3dnowext_deps="amd3dnow"
1458 mmx_deps="x86"
1459 mmxext_deps="mmx"
1460 sse_deps="mmxext"
1461 sse2_deps="sse"
1462 sse3_deps="sse2"
1463 ssse3_deps="sse3"
1464 sse4_deps="ssse3"
1465 sse42_deps="sse4"
1466 avx_deps="sse42"
1467 fma4_deps="avx"
1468
1469 mmx_external_deps="yasm"
1470 mmx_inline_deps="inline_asm"
1471 mmx_suggest="mmx_external mmx_inline"
1472
1473 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1474 eval dep=\$${ext}_deps
1475 eval ${ext}_external_deps='"${dep}_external"'
1476 eval ${ext}_inline_deps='"${dep}_inline"'
1477 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1478 done
1479
1480 aligned_stack_if_any="ppc x86"
1481 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1482 fast_clz_if_any="alpha avr32 mips ppc x86"
1483 fast_unaligned_if_any="ppc x86"
1484
1485 inline_asm_deps="!tms470"
1486 need_memalign="altivec neon sse"
1487
1488 symver_if_any="symver_asm_label symver_gnu_asm"
1489
1490 log2_deps="!msvcrt"
1491
1492 # subsystems
1493 dct_select="rdft"
1494 mdct_select="fft"
1495 rdft_select="fft"
1496 mpegaudio_select="mpegaudiodsp"
1497 mpegaudiodsp_select="dct"
1498 mpegvideo_select="videodsp"
1499 mpegvideoenc_select="mpegvideo"
1500
1501 # decoders / encoders
1502 aac_decoder_select="mdct sinewin"
1503 aac_encoder_select="audio_frame_queue mdct sinewin"
1504 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1505 ac3_decoder_select="mdct ac3dsp ac3_parser"
1506 ac3_encoder_select="mdct ac3dsp"
1507 ac3_fixed_encoder_select="mdct ac3dsp"
1508 alac_encoder_select="lpc"
1509 amrnb_decoder_select="lsp"
1510 amrwb_decoder_select="lsp"
1511 atrac1_decoder_select="mdct sinewin"
1512 atrac3_decoder_select="mdct"
1513 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1514 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1515 cavs_decoder_select="golomb mpegvideo"
1516 comfortnoise_encoder_select="lpc"
1517 cook_decoder_select="mdct sinewin"
1518 cscd_decoder_select="lzo"
1519 cscd_decoder_suggest="zlib"
1520 dca_decoder_select="mdct"
1521 dnxhd_encoder_select="aandcttables mpegvideoenc"
1522 dxa_decoder_select="zlib"
1523 eac3_decoder_select="ac3_decoder"
1524 eac3_encoder_select="ac3_encoder"
1525 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1526 eatgq_decoder_select="aandcttables"
1527 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1528 ffv1_decoder_select="golomb rangecoder"
1529 ffv1_encoder_select="rangecoder"
1530 ffvhuff_encoder_select="huffman"
1531 flac_decoder_select="golomb"
1532 flac_encoder_select="golomb lpc"
1533 flashsv_decoder_select="zlib"
1534 flashsv_encoder_select="zlib"
1535 flashsv2_decoder_select="zlib"
1536 flv_decoder_select="h263_decoder"
1537 flv_encoder_select="h263_encoder"
1538 fraps_decoder_select="huffman"
1539 h261_decoder_select="error_resilience mpegvideo"
1540 h261_encoder_select="aandcttables mpegvideoenc"
1541 h263_decoder_select="error_resilience h263_parser mpegvideo"
1542 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1543 h263i_decoder_select="h263_decoder"
1544 h263p_encoder_select="h263_encoder"
1545 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1546 huffyuv_encoder_select="huffman"
1547 iac_decoder_select="fft mdct sinewin"
1548 imc_decoder_select="fft mdct sinewin"
1549 jpegls_decoder_select="golomb"
1550 jpegls_encoder_select="golomb"
1551 ljpeg_encoder_select="aandcttables mpegvideoenc"
1552 loco_decoder_select="golomb"
1553 mdec_decoder_select="error_resilience mpegvideo"
1554 mjpeg_encoder_select="aandcttables mpegvideoenc"
1555 mlp_decoder_select="mlp_parser"
1556 mp1_decoder_select="mpegaudio"
1557 mp1float_decoder_select="mpegaudio"
1558 mp2_decoder_select="mpegaudio"
1559 mp2float_decoder_select="mpegaudio"
1560 mp3_decoder_select="mpegaudio"
1561 mp3adu_decoder_select="mpegaudio"
1562 mp3adufloat_decoder_select="mpegaudio"
1563 mp3float_decoder_select="mpegaudio"
1564 mp3on4_decoder_select="mpegaudio"
1565 mp3on4float_decoder_select="mpegaudio"
1566 mpc7_decoder_select="mpegaudiodsp"
1567 mpc8_decoder_select="mpegaudiodsp"
1568 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1569 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1570 mpeg1video_decoder_select="error_resilience mpegvideo"
1571 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1572 mpeg2video_decoder_select="error_resilience mpegvideo"
1573 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1574 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1575 mpeg4_encoder_select="h263_encoder"
1576 msmpeg4v1_decoder_select="h263_decoder"
1577 msmpeg4v1_encoder_select="h263_encoder"
1578 msmpeg4v2_decoder_select="h263_decoder"
1579 msmpeg4v2_encoder_select="h263_encoder"
1580 msmpeg4v3_decoder_select="h263_decoder"
1581 msmpeg4v3_encoder_select="h263_encoder"
1582 mss2_decoder_select="vc1_decoder"
1583 nellymoser_decoder_select="mdct sinewin"
1584 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1585 nuv_decoder_select="lzo"
1586 png_decoder_select="zlib"
1587 png_encoder_select="zlib"
1588 qcelp_decoder_select="lsp"
1589 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1590 ra_144_encoder_select="audio_frame_queue lpc"
1591 ralf_decoder_select="golomb"
1592 rv10_decoder_select="h263_decoder"
1593 rv10_encoder_select="h263_encoder"
1594 rv20_decoder_select="h263_decoder"
1595 rv20_encoder_select="h263_encoder"
1596 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1597 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1598 shorten_decoder_select="golomb"
1599 sipr_decoder_select="lsp"
1600 svq1_decoder_select="error_resilience mpegvideo"
1601 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1602 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1603 svq3_decoder_suggest="zlib"
1604 theora_decoder_select="vp3_decoder"
1605 tiff_decoder_suggest="zlib"
1606 tiff_encoder_suggest="zlib"
1607 truehd_decoder_select="mlp_decoder"
1608 tscc_decoder_select="zlib"
1609 twinvq_decoder_select="mdct lsp sinewin"
1610 utvideo_encoder_select="huffman"
1611 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1612 vc1image_decoder_select="vc1_decoder"
1613 vorbis_decoder_select="mdct"
1614 vorbis_encoder_select="mdct"
1615 vp3_decoder_select="vp3dsp videodsp"
1616 vp5_decoder_select="vp3dsp videodsp"
1617 vp6_decoder_select="huffman vp3dsp videodsp"
1618 vp6a_decoder_select="vp6_decoder"
1619 vp6f_decoder_select="vp6_decoder"
1620 vp8_decoder_select="h264pred videodsp"
1621 wmapro_decoder_select="mdct sinewin"
1622 wmav1_decoder_select="mdct sinewin"
1623 wmav1_encoder_select="mdct sinewin"
1624 wmav2_decoder_select="mdct sinewin"
1625 wmav2_encoder_select="mdct sinewin"
1626 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1627 wmv1_decoder_select="h263_decoder"
1628 wmv1_encoder_select="h263_encoder"
1629 wmv2_decoder_select="h263_decoder"
1630 wmv2_encoder_select="h263_encoder"
1631 wmv3_decoder_select="vc1_decoder"
1632 wmv3image_decoder_select="wmv3_decoder"
1633 zerocodec_decoder_select="zlib"
1634 zlib_decoder_select="zlib"
1635 zlib_encoder_select="zlib"
1636 zmbv_decoder_select="zlib"
1637 zmbv_encoder_select="zlib"
1638
1639 # hardware accelerators
1640 dxva2_deps="dxva2api_h"
1641 vaapi_deps="va_va_h"
1642 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1643 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1644 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1645
1646 h263_vaapi_hwaccel_deps="vaapi"
1647 h263_vaapi_hwaccel_select="h263_decoder"
1648 h263_vdpau_hwaccel_deps="vdpau"
1649 h263_vdpau_hwaccel_select="h263_decoder"
1650 h264_dxva2_hwaccel_deps="dxva2"
1651 h264_dxva2_hwaccel_select="h264_decoder"
1652 h264_vaapi_hwaccel_deps="vaapi"
1653 h264_vaapi_hwaccel_select="h264_decoder"
1654 h264_vda_hwaccel_deps="vda"
1655 h264_vda_hwaccel_select="h264_decoder"
1656 h264_vdpau_decoder_deps="vdpau"
1657 h264_vdpau_decoder_select="h264_decoder"
1658 h264_vdpau_hwaccel_deps="vdpau"
1659 h264_vdpau_hwaccel_select="h264_decoder"
1660 mpeg_vdpau_decoder_deps="vdpau"
1661 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1662 mpeg1_vdpau_decoder_deps="vdpau"
1663 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1664 mpeg1_vdpau_hwaccel_deps="vdpau"
1665 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1666 mpeg2_dxva2_hwaccel_deps="dxva2"
1667 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1668 mpeg2_vaapi_hwaccel_deps="vaapi"
1669 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1670 mpeg2_vdpau_hwaccel_deps="vdpau"
1671 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1672 mpeg4_vaapi_hwaccel_deps="vaapi"
1673 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1674 mpeg4_vdpau_decoder_deps="vdpau"
1675 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1676 mpeg4_vdpau_hwaccel_deps="vdpau"
1677 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1678 vc1_dxva2_hwaccel_deps="dxva2"
1679 vc1_dxva2_hwaccel_select="vc1_decoder"
1680 vc1_vaapi_hwaccel_deps="vaapi"
1681 vc1_vaapi_hwaccel_select="vc1_decoder"
1682 vc1_vdpau_decoder_deps="vdpau"
1683 vc1_vdpau_decoder_select="vc1_decoder"
1684 vc1_vdpau_hwaccel_deps="vdpau"
1685 vc1_vdpau_hwaccel_select="vc1_decoder"
1686 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1687 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1688 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1689 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1690
1691 # parsers
1692 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1693 mpeg4video_parser_select="error_resilience mpegvideo"
1694 mpegvideo_parser_select="error_resilience mpegvideo"
1695 vc1_parser_select="error_resilience mpegvideo"
1696
1697 # external libraries
1698 libfaac_encoder_deps="libfaac"
1699 libfaac_encoder_select="audio_frame_queue"
1700 libfdk_aac_encoder_deps="libfdk_aac"
1701 libfdk_aac_encoder_select="audio_frame_queue"
1702 libgsm_decoder_deps="libgsm"
1703 libgsm_encoder_deps="libgsm"
1704 libgsm_ms_decoder_deps="libgsm"
1705 libgsm_ms_encoder_deps="libgsm"
1706 libilbc_decoder_deps="libilbc"
1707 libilbc_encoder_deps="libilbc"
1708 libmp3lame_encoder_deps="libmp3lame"
1709 libmp3lame_encoder_select="audio_frame_queue"
1710 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1711 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1712 libopencore_amrnb_encoder_select="audio_frame_queue"
1713 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1714 libopenjpeg_decoder_deps="libopenjpeg"
1715 libopenjpeg_encoder_deps="libopenjpeg"
1716 libopus_decoder_deps="libopus"
1717 libopus_encoder_deps="libopus"
1718 libopus_encoder_select="audio_frame_queue"
1719 libschroedinger_decoder_deps="libschroedinger"
1720 libschroedinger_encoder_deps="libschroedinger"
1721 libspeex_decoder_deps="libspeex"
1722 libspeex_encoder_deps="libspeex"
1723 libspeex_encoder_select="audio_frame_queue"
1724 libtheora_encoder_deps="libtheora"
1725 libvo_aacenc_encoder_deps="libvo_aacenc"
1726 libvo_aacenc_encoder_select="audio_frame_queue"
1727 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1728 libvorbis_encoder_deps="libvorbis"
1729 libvorbis_encoder_select="audio_frame_queue"
1730 libvpx_vp8_decoder_deps="libvpx"
1731 libvpx_vp8_encoder_deps="libvpx"
1732 libvpx_vp9_decoder_deps="libvpx"
1733 libvpx_vp9_encoder_deps="libvpx"
1734 libx264_encoder_deps="libx264"
1735 libxavs_encoder_deps="libxavs"
1736 libxvid_encoder_deps="libxvid"
1737
1738 # demuxers / muxers
1739 ac3_demuxer_select="ac3_parser"
1740 asf_stream_muxer_select="asf_muxer"
1741 avisynth_demuxer_deps="avisynth"
1742 dirac_demuxer_select="dirac_parser"
1743 eac3_demuxer_select="ac3_parser"
1744 flac_demuxer_select="flac_parser"
1745 ipod_muxer_select="mov_muxer"
1746 ismv_muxer_select="mov_muxer"
1747 matroska_audio_muxer_select="matroska_muxer"
1748 matroska_demuxer_suggest="bzlib lzo zlib"
1749 mov_demuxer_suggest="zlib"
1750 mov_muxer_select="rtpenc_chain"
1751 mp3_demuxer_select="mpegaudio_parser"
1752 mp4_muxer_select="mov_muxer"
1753 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1754 mpegtsraw_demuxer_select="mpegts_demuxer"
1755 mxf_d10_muxer_select="mxf_muxer"
1756 ogg_demuxer_select="golomb"
1757 psp_muxer_select="mov_muxer"
1758 rtp_demuxer_select="sdp_demuxer"
1759 rtp_muxer_select="mpegvideo"
1760 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1761 rtsp_demuxer_select="http_protocol rtpdec"
1762 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1763 sap_demuxer_select="sdp_demuxer"
1764 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1765 sdp_demuxer_select="rtpdec"
1766 smoothstreaming_muxer_select="ismv_muxer"
1767 spdif_muxer_select="aac_parser"
1768 tak_demuxer_select="tak_parser"
1769 tg2_muxer_select="mov_muxer"
1770 tgp_muxer_select="mov_muxer"
1771 w64_demuxer_deps="wav_demuxer"
1772
1773 # indevs / outdevs
1774 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1775 alsa_outdev_deps="alsa_asoundlib_h"
1776 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1777 dv1394_indev_deps="dv1394 dv_demuxer"
1778 fbdev_indev_deps="linux_fb_h"
1779 jack_indev_deps="jack_jack_h"
1780 libcdio_indev_deps="libcdio"
1781 libdc1394_indev_deps="libdc1394"
1782 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1783 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1784 pulse_indev_deps="libpulse"
1785 sndio_indev_deps="sndio_h"
1786 sndio_outdev_deps="sndio_h"
1787 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1788 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1789 vfwcap_indev_extralibs="-lavicap32"
1790 x11grab_indev_deps="x11grab XShmCreateImage"
1791
1792 # protocols
1793 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1794 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1795 ffrtmpcrypt_protocol_select="tcp_protocol"
1796 ffrtmphttp_protocol_deps="!librtmp_protocol"
1797 ffrtmphttp_protocol_select="http_protocol"
1798 gopher_protocol_select="network"
1799 httpproxy_protocol_select="tcp_protocol"
1800 http_protocol_select="tcp_protocol"
1801 https_protocol_select="tls_protocol"
1802 librtmp_protocol_deps="librtmp"
1803 librtmpe_protocol_deps="librtmp"
1804 librtmps_protocol_deps="librtmp"
1805 librtmpt_protocol_deps="librtmp"
1806 librtmpte_protocol_deps="librtmp"
1807 mmsh_protocol_select="http_protocol"
1808 mmst_protocol_select="network"
1809 rtmp_protocol_deps="!librtmp_protocol"
1810 rtmp_protocol_select="tcp_protocol"
1811 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1812 rtmps_protocol_deps="!librtmp_protocol"
1813 rtmps_protocol_select="tls_protocol"
1814 rtmpt_protocol_select="ffrtmphttp_protocol"
1815 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1816 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1817 rtp_protocol_select="udp_protocol"
1818 sctp_protocol_deps="struct_sctp_event_subscribe"
1819 sctp_protocol_select="network"
1820 srtp_protocol_select="rtp_protocol"
1821 tcp_protocol_select="network"
1822 tls_protocol_deps_any="openssl gnutls"
1823 tls_protocol_select="tcp_protocol"
1824 udp_protocol_select="network"
1825
1826 # filters
1827 blackframe_filter_deps="gpl"
1828 boxblur_filter_deps="gpl"
1829 cropdetect_filter_deps="gpl"
1830 delogo_filter_deps="gpl"
1831 drawtext_filter_deps="libfreetype"
1832 frei0r_filter_deps="frei0r dlopen strtok_r"
1833 frei0r_filter_extralibs='$ldl'
1834 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1835 frei0r_src_filter_extralibs='$ldl'
1836 hqdn3d_filter_deps="gpl"
1837 resample_filter_deps="avresample"
1838 ocv_filter_deps="libopencv"
1839 scale_filter_deps="swscale"
1840 yadif_filter_deps="gpl"
1841
1842 # libraries
1843 avcodec_deps="avutil"
1844 avdevice_deps="avutil avcodec avformat"
1845 avfilter_deps="avutil"
1846 avformat_deps="avutil avcodec"
1847 avresample_deps="avutil"
1848 swscale_deps="avutil"
1849
1850 # programs
1851 avconv_deps="avcodec avfilter avformat avresample swscale"
1852 avconv_select="aformat_filter anull_filter asyncts_filter format_filter
1853 fps_filter null_filter resample_filter scale_filter
1854 setpts_filter"
1855 avplay_deps="avcodec avformat avresample swscale sdl"
1856 avplay_select="rdft"
1857 avprobe_deps="avcodec avformat"
1858 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1859 avserver_extralibs='$ldl'
1860
1861 doc_deps="texi2html"
1862
1863 # default parameters
1864
1865 logfile="config.log"
1866
1867 # installation paths
1868 prefix_default="/usr/local"
1869 bindir_default='${prefix}/bin'
1870 datadir_default='${prefix}/share/avconv'
1871 incdir_default='${prefix}/include'
1872 libdir_default='${prefix}/lib'
1873 mandir_default='${prefix}/share/man'
1874 shlibdir_default="$libdir_default"
1875
1876 # toolchain
1877 ar_default="ar"
1878 cc_default="gcc"
1879 host_cc_default="gcc"
1880 cp_f="cp -f"
1881 ln_s="ln -s -f"
1882 nm_default="nm -g"
1883 objformat="elf"
1884 pkg_config_default=pkg-config
1885 ranlib="ranlib"
1886 yasmexe="yasm"
1887
1888 nogas=":"
1889
1890 # machine
1891 arch_default=$(uname -m)
1892 cpu="generic"
1893
1894 # OS
1895 target_os_default=$(tolower $(uname -s))
1896 host_os=$target_os_default
1897
1898 # configurable options
1899 enable $LIBRARY_LIST $PROGRAM_LIST
1900
1901 enable asm
1902 enable debug
1903 enable doc
1904 enable optimizations
1905 enable safe_bitstream_reader
1906 enable static
1907 enable swscale_alpha
1908
1909 # build settings
1910 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1911 AVSERVERLDFLAGS=-Wl,-E
1912 LIBPREF="lib"
1913 LIBSUF=".a"
1914 FULLNAME='$(NAME)$(BUILDSUF)'
1915 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1916 SLIBPREF="lib"
1917 SLIBSUF=".so"
1918 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1919 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1920 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1921 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1922 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1923 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1924
1925 asflags_filter=echo
1926 cflags_filter=echo
1927 ldflags_filter=echo
1928
1929 AS_C='-c'
1930 AS_O='-o $@'
1931 CC_C='-c'
1932 CC_E='-E -o $@'
1933 CC_O='-o $@'
1934 LD_O='-o $@'
1935 LD_LIB='-l%'
1936 LD_PATH='-L'
1937 HOSTCC_C='-c'
1938 HOSTCC_O='-o $@'
1939 HOSTLD_O='-o $@'
1940
1941 host_cflags='-O3 -g'
1942 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
1943 host_libs='-lm'
1944 host_cflags_filter=echo
1945 host_ldflags_filter=echo
1946
1947 target_path='$(CURDIR)'
1948
1949 # since the object filename is not given with the -MM flag, the compiler
1950 # is only able to print the basename, and we must add the path ourselves
1951 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1952 DEPFLAGS='-MM'
1953
1954 # find source path
1955 if test -f configure; then
1956 source_path=.
1957 else
1958 source_path=$(cd $(dirname "$0"); pwd)
1959 echo "$source_path" | grep -q '[[:blank:]]' &&
1960 die "Out of tree builds are impossible with whitespace in source path."
1961 test -e "$source_path/config.h" &&
1962 die "Out of tree builds are impossible with config.h in source dir."
1963 fi
1964
1965 for v in "$@"; do
1966 r=${v#*=}
1967 l=${v%"$r"}
1968 r=$(sh_quote "$r")
1969 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1970 done
1971
1972 find_things(){
1973 thing=$1
1974 pattern=$2
1975 file=$source_path/$3
1976 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1977 }
1978
1979 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1980 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1981 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1982 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1983 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1984 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1985 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1986 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1987 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1988 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1989 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1990
1991 ALL_COMPONENTS="
1992 $BSF_LIST
1993 $DECODER_LIST
1994 $DEMUXER_LIST
1995 $ENCODER_LIST
1996 $FILTER_LIST
1997 $HWACCEL_LIST
1998 $INDEV_LIST
1999 $MUXER_LIST
2000 $OUTDEV_LIST
2001 $PARSER_LIST
2002 $PROTOCOL_LIST
2003 "
2004
2005 for n in $COMPONENT_LIST; do
2006 v=$(toupper ${n%s})_LIST
2007 eval enable \$$v
2008 eval ${n}_if_any="\$$v"
2009 done
2010
2011 enable $ARCH_EXT_LIST
2012
2013 die_unknown(){
2014 echo "Unknown option \"$1\"."
2015 echo "See $0 --help for available options."
2016 exit 1
2017 }
2018
2019 print_3_columns() {
2020 cat | tr ' ' '\n' | sort | pr -r -3 -t
2021 }
2022
2023 show_list() {
2024 suffix=_$1
2025 shift
2026 echo $* | sed s/$suffix//g | print_3_columns
2027 exit 0
2028 }
2029
2030 rand_list(){
2031 IFS=', '
2032 set -- $*
2033 unset IFS
2034 for thing; do
2035 comp=${thing%:*}
2036 prob=${thing#$comp}
2037 prob=${prob#:}
2038 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2039 echo "prob ${prob:-0.5}"
2040 printf '%s\n' $comp
2041 done
2042 }
2043
2044 do_random(){
2045 action=$1
2046 shift
2047 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2048 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2049 }
2050
2051 for opt do
2052 optval="${opt#*=}"
2053 case "$opt" in
2054 --extra-ldflags=*)
2055 add_ldflags $optval
2056 ;;
2057 --extra-libs=*)
2058 add_extralibs $optval
2059 ;;
2060 --disable-devices)
2061 disable $INDEV_LIST $OUTDEV_LIST
2062 ;;
2063 --enable-debug=*)
2064 debuglevel="$optval"
2065 ;;
2066 --disable-programs)
2067 disable $PROGRAM_LIST
2068 ;;
2069 --disable-everything)
2070 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2071 ;;
2072 --disable-all)
2073 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2074 disable $LIBRARY_LIST $PROGRAM_LIST doc
2075 ;;
2076 --enable-random|--disable-random)
2077 action=${opt%%-random}
2078 do_random ${action#--} $COMPONENT_LIST
2079 ;;
2080 --enable-random=*|--disable-random=*)
2081 action=${opt%%-random=*}
2082 do_random ${action#--} $optval
2083 ;;
2084 --enable-*=*|--disable-*=*)
2085 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2086 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2087 eval list=\$$(toupper $thing)_LIST
2088 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2089 $action $(filter "$name" $list)
2090 ;;
2091 --enable-?*|--disable-?*)
2092 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2093 if is_in $option $COMPONENT_LIST; then
2094 test $action = disable && action=unset
2095 eval $action \$$(toupper ${option%s})_LIST
2096 elif is_in $option $CMDLINE_SELECT; then
2097 $action $option
2098 else
2099 die_unknown $opt
2100 fi
2101 ;;
2102 --list-*)
2103 NAME="${opt#--list-}"
2104 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2105 NAME=${NAME%s}
2106 eval show_list $NAME \$$(toupper $NAME)_LIST
2107 ;;
2108 --help|-h) show_help
2109 ;;
2110 *)
2111 optname="${opt%%=*}"
2112 optname="${optname#--}"
2113 optname=$(echo "$optname" | sed 's/-/_/g')
2114 if is_in $optname $CMDLINE_SET; then
2115 eval $optname='$optval'
2116 elif is_in $optname $CMDLINE_APPEND; then
2117 append $optname "$optval"
2118 else
2119 die_unknown $opt
2120 fi
2121 ;;
2122 esac
2123 done
2124
2125 disabled logging && logfile=/dev/null
2126
2127 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2128 set >> $logfile
2129
2130 test -n "$cross_prefix" && enable cross_compile
2131
2132 if enabled cross_compile; then
2133 test -n "$arch" && test -n "$target_os" ||
2134 die "Must specify target arch and OS when cross-compiling"
2135 fi
2136
2137 ar_default="${cross_prefix}${ar_default}"
2138 cc_default="${cross_prefix}${cc_default}"
2139 nm_default="${cross_prefix}${nm_default}"
2140 pkg_config_default="${cross_prefix}${pkg_config_default}"
2141 ranlib="${cross_prefix}${ranlib}"
2142
2143 sysinclude_default="${sysroot}/usr/include"
2144
2145 case "$toolchain" in
2146 clang-asan)
2147 cc_default="clang"
2148 add_cflags -faddress-sanitizer
2149 add_ldflags -faddress-sanitizer
2150 ;;
2151 clang-tsan)
2152 cc_default="clang"
2153 add_cflags -fthread-sanitizer
2154 add_ldflags -fthread-sanitizer
2155 ;;
2156 msvc)
2157 cc_default="c99wrap cl"
2158 ld_default="c99wrap link"
2159 nm_default="dumpbin -symbols"
2160 ar_default="lib"
2161 target_os_default="win32"
2162 ;;
2163 ?*)
2164 die "Unknown toolchain $toolchain"
2165 ;;
2166 esac
2167
2168 set_default arch cc pkg_config sysinclude target_os
2169 enabled cross_compile || host_cc_default=$cc
2170 set_default host_cc
2171
2172 if ! $pkg_config --version >/dev/null 2>&1; then
2173 warn "$pkg_config not found, library detection may fail."
2174 pkg_config=false
2175 fi
2176
2177 exesuf() {
2178 case $1 in
2179 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2180 esac
2181 }
2182
2183 EXESUF=$(exesuf $target_os)
2184 HOSTEXESUF=$(exesuf $host_os)
2185
2186 # set temporary file name
2187 : ${TMPDIR:=$TEMPDIR}
2188 : ${TMPDIR:=$TMP}
2189 : ${TMPDIR:=/tmp}
2190
2191 if ! check_cmd mktemp -u XXXXXX; then
2192 # simple replacement for missing mktemp
2193 # NOT SAFE FOR GENERAL USE
2194 mktemp(){
2195 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2196 }
2197 fi
2198
2199 tmpfile(){
2200 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2201 (set -C; exec > $tmp) 2>/dev/null ||
2202 die "Unable to create temporary file in $TMPDIR."
2203 append TMPFILES $tmp
2204 eval $1=$tmp
2205 }
2206
2207 trap 'rm -f -- $TMPFILES' EXIT
2208
2209 tmpfile TMPASM .asm
2210 tmpfile TMPC .c
2211 tmpfile TMPE $EXESUF
2212 tmpfile TMPH .h
2213 tmpfile TMPO .o
2214 tmpfile TMPS .S
2215 tmpfile TMPSH .sh
2216 tmpfile TMPV .ver
2217
2218 unset -f mktemp
2219
2220 chmod +x $TMPE
2221
2222 # make sure we can execute files in $TMPDIR
2223 cat > $TMPSH 2>> $logfile <<EOF
2224 #! /bin/sh
2225 EOF
2226 chmod +x $TMPSH >> $logfile 2>&1
2227 if ! $TMPSH >> $logfile 2>&1; then
2228 cat <<EOF
2229 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2230 variable to another directory and make sure that it is not mounted noexec.
2231 EOF
2232 die "Sanity test failed."
2233 fi
2234
2235 ccc_flags(){
2236 for flag; do
2237 case $flag in
2238 -std=c99) echo -c99 ;;
2239 -mcpu=*) echo -arch ${flag#*=} ;;
2240 -mieee) echo -ieee ;;
2241 -O*|-fast) echo $flag ;;
2242 -fno-math-errno) echo -assume nomath_errno ;;
2243 -g) echo -g3 ;;
2244 -Wall) echo -msg_enable level2 ;;
2245 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2246 -Wl,*) echo $flag ;;
2247 -f*|-W*) ;;
2248 *) echo $flag ;;
2249 esac
2250 done
2251 }
2252
2253 msvc_flags(){
2254 for flag; do
2255 case $flag in
2256 -fomit-frame-pointer) echo -Oy ;;
2257 -g) echo -Z7 ;;
2258 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2259 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2260 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2261 -wd4996 -wd4273 ;;
2262 -std=c99) ;;
2263 -fno-math-errno) ;;
2264 -fno-common) ;;
2265 -fno-signed-zeros) ;;
2266 -fPIC) ;;
2267 -lz) echo zlib.lib ;;
2268 -lavifil32) echo vfw32.lib ;;
2269 -lavicap32) echo vfw32.lib user32.lib ;;
2270 -l*) echo ${flag#-l}.lib ;;
2271 *) echo $flag ;;
2272 esac
2273 done
2274 }
2275
2276 pgi_flags(){
2277 for flag; do
2278 case $flag in
2279 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2280 -fomit-frame-pointer) echo -Mnoframe ;;
2281 -g) echo -gopt ;;
2282 *) echo $flag ;;
2283 esac
2284 done
2285 }
2286
2287 suncc_flags(){
2288 for flag; do
2289 case $flag in
2290 -march=*|-mcpu=*)
2291 case "${flag#*=}" in
2292 native) echo -xtarget=native ;;
2293 v9|niagara) echo -xarch=sparc ;;
2294 ultrasparc) echo -xarch=sparcvis ;;
2295 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2296 i586|pentium) echo -xchip=pentium ;;
2297 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2298 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2299 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2300 pentium4*) echo -xtarget=pentium4 ;;
2301 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2302 *-sse3) echo -xarch=sse3 ;;
2303 core2) echo -xarch=ssse3 -xchip=core2 ;;
2304 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2305 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2306 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2307 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2308 k8|opteron|athlon64|athlon-fx)
2309 echo -xarch=sse2a ;;
2310 athlon*) echo -xarch=pentium_proa ;;
2311 esac
2312 ;;
2313 -std=c99) echo -xc99 ;;
2314 -fomit-frame-pointer) echo -xregs=frameptr ;;
2315 -fPIC) echo -KPIC -xcode=pic32 ;;
2316 -W*,*) echo $flag ;;
2317 -f*-*|-W*|-mimpure-text) ;;
2318 -shared) echo -G ;;
2319 *) echo $flag ;;
2320 esac
2321 done
2322 }
2323
2324 tms470_flags(){
2325 for flag; do
2326 case $flag in
2327 -march=*|-mcpu=*)
2328 case "${flag#*=}" in
2329 armv7-a|cortex-a*) echo -mv=7a8 ;;
2330 armv7-r|cortex-r*) echo -mv=7r4 ;;
2331 armv7-m|cortex-m*) echo -mv=7m3 ;;
2332 armv6*|arm11*) echo -mv=6 ;;
2333 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2334 echo -mv=5e ;;
2335 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2336 esac
2337 ;;
2338 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2339 -mfpu=vfp) echo --float_support=vfpv2 ;;
2340 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2341 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2342 -msoft-float) echo --float_support=vfplib ;;
2343 -O[0-3]|-mf=*) echo $flag ;;
2344 -g) echo -g -mn ;;
2345 -pds=*) echo $flag ;;
2346 -D*|-I*) echo $flag ;;
2347 --gcc|--abi=*) echo $flag ;;
2348 -me) echo $flag ;;
2349 esac
2350 done
2351 }
2352
2353 probe_cc(){
2354 pfx=$1
2355 _cc=$2
2356
2357 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2358 unset _ld_o _ldflags _ld_lib _ld_path
2359 unset _depflags _DEPCMD _DEPFLAGS
2360 _flags_filter=echo
2361
2362 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2363 _type=llvm_gcc
2364 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2365 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2366 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2367 _cflags_speed='-O3'
2368 _cflags_size='-Os'
2369 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2370 _type=gcc
2371 gcc_version=$($_cc --version | head -n1)
2372 gcc_basever=$($_cc -dumpversion)
2373 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2374 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2375 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2376 if ! $_cc -dumpversion | grep -q '^2\.'; then
2377 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2378 fi
2379 _cflags_speed='-O3'
2380 _cflags_size='-Os'
2381 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2382 _type=icc
2383 _ident=$($_cc --version | head -n1)
2384 _depflags='-MMD'
2385 _cflags_speed='-O3'
2386 _cflags_size='-Os'
2387 _cflags_noopt='-O1'
2388 elif $_cc -v 2>&1 | grep -q xlc; then
2389 _type=xlc
2390 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2391 _cflags_speed='-O5'
2392 _cflags_size='-O5 -qcompact'
2393 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2394 _type=ccc
2395 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2396 _DEPFLAGS='-M'
2397 _cflags_speed='-fast'
2398 _cflags_size='-O1'
2399 _flags_filter=ccc_flags
2400 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2401 test -d "$sysroot" || die "No valid sysroot specified."
2402 _type=armcc
2403 _ident=$($_cc --vsn | head -n1)
2404 armcc_conf="$PWD/armcc.conf"
2405 $_cc --arm_linux_configure \
2406 --arm_linux_config_file="$armcc_conf" \
2407 --configure_sysroot="$sysroot" \
2408 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2409 die "Error creating armcc configuration file."
2410 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2411 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2412 as_default="${cross_prefix}gcc"
2413 _depflags='-MMD'
2414 _cflags_speed='-O3'
2415 _cflags_size='-Os'
2416 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2417 _type=tms470
2418 _ident=$($_cc -version | head -n1 | tr -s ' ')
2419 _flags='--gcc --abi=eabi -me'
2420 _cc_e='-ppl -fe=$@'
2421 _cc_o='-fe=$@'
2422 _depflags='-ppa -ppd=$(@:.o=.d)'
2423 _cflags_speed='-O3 -mf=5'
2424 _cflags_size='-O3 -mf=2'
2425 _flags_filter=tms470_flags
2426 elif $_cc -v 2>&1 | grep -q clang; then
2427 _type=clang
2428 _ident=$($_cc --version | head -n1)
2429 _depflags='-MMD'
2430 _cflags_speed='-O3'
2431 _cflags_size='-Os'
2432 elif $_cc -V 2>&1 | grep -q Sun; then
2433 _type=suncc
2434 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2435 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2436 _DEPFLAGS='-xM1 -xc99'
2437 _ldflags='-std=c99'
2438 _cflags_speed='-O5'
2439 _cflags_size='-O5 -xspace'
2440 _flags_filter=suncc_flags
2441 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2442 _type=pathscale
2443 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2444 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2445 _cflags_speed='-O2'
2446 _cflags_size='-Os'
2447 _flags_filter='filter_out -Wdisabled-optimization'
2448 elif $_cc -v 2>&1 | grep -q Open64; then
2449 _type=open64
2450 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2451 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2452 _cflags_speed='-O2'
2453 _cflags_size='-Os'
2454 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2455 elif $_cc -V 2>&1 | grep -q Portland; then
2456 _type=pgi
2457 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2458 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2459 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2460 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2461 _cflags_noopt="-O1"
2462 _flags_filter=pgi_flags
2463 elif $_cc 2>&1 | grep -q Microsoft; then
2464 _type=msvc
2465 _ident=$($cc 2>&1 | head -n1)
2466 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2467 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2468 _cflags_speed="-O2"
2469 _cflags_size="-O1"
2470 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2471 if $_cc 2>&1 | grep -q Linker; then
2472 _ld_o='-out $@'
2473 else
2474 _ld_o='-Fe$@'
2475 fi
2476 _cc_o='-Fo $@'
2477 _cc_e='-P -Fi $@'
2478 _flags_filter=msvc_flags
2479 _ld_lib='lib%.a'
2480 _ld_path='-libpath:'
2481 _flags='-nologo'
2482 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2483 if [ $pfx = hostcc ]; then
2484 append _cflags -Dsnprintf=_snprintf
2485 fi
2486 fi
2487
2488 eval ${pfx}_type=\$_type
2489 eval ${pfx}_ident=\$_ident
2490 }
2491
2492 set_ccvars(){
2493 eval ${1}_C=\${_cc_c-\${${1}_C}}
2494 eval ${1}_E=\${_cc_e-\${${1}_E}}
2495 eval ${1}_O=\${_cc_o-\${${1}_O}}
2496
2497 if [ -n "$_depflags" ]; then
2498 eval ${1}_DEPFLAGS=\$_depflags
2499 else
2500 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2501 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2502 eval DEP${1}FLAGS=\$_flags
2503 fi
2504 }
2505
2506 probe_cc cc "$cc"
2507 cflags_filter=$_flags_filter
2508 cflags_speed=$_cflags_speed
2509 cflags_size=$_cflags_size
2510 cflags_noopt=$_cflags_noopt
2511 add_cflags $_flags $_cflags
2512 cc_ldflags=$_ldflags
2513 set_ccvars CC
2514
2515 probe_cc hostcc "$host_cc"
2516 host_cflags_filter=$_flags_filter
2517 add_host_cflags $_flags $_cflags
2518 set_ccvars HOSTCC
2519
2520 test -n "$cc_type" && enable $cc_type ||
2521 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2522
2523 : ${as_default:=$cc}
2524 : ${dep_cc_default:=$cc}
2525 : ${ld_default:=$cc}
2526 : ${host_ld_default:=$host_cc}
2527 set_default ar as dep_cc ld host_ld
2528
2529 probe_cc as "$as"
2530 asflags_filter=$_flags_filter
2531 add_asflags $_flags $_cflags
2532 set_ccvars AS
2533
2534 probe_cc ld "$ld"
2535 ldflags_filter=$_flags_filter
2536 add_ldflags $_flags $_ldflags
2537 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2538 LD_O=${_ld_o-$LD_O}
2539 LD_LIB=${_ld_lib-$LD_LIB}
2540 LD_PATH=${_ld_path-$LD_PATH}
2541
2542 probe_cc hostld "$host_ld"
2543 host_ldflags_filter=$_flags_filter
2544 add_host_ldflags $_flags $_ldflags
2545 HOSTLD_O=${_ld_o-$HOSTLD_O}
2546
2547 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2548 probe_cc depcc "$dep_cc"
2549 CCDEP=${_DEPCMD:-$DEPCMD}
2550 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2551 DEPCCFLAGS=$_flags
2552 fi
2553
2554 if $ar 2>&1 | grep -q Microsoft; then
2555 arflags="-nologo"
2556 ar_o='-out:$@'
2557 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2558 arflags="rq"
2559 ar_o='$@'
2560 else
2561 arflags="rc"
2562 ar_o='$@'
2563 fi
2564
2565 add_cflags $extra_cflags
2566 add_asflags $extra_cflags
2567
2568 if test -n "$sysroot"; then
2569 case "$cc_type" in
2570 gcc|llvm_gcc|clang)
2571 add_cppflags --sysroot="$sysroot"
2572 add_ldflags --sysroot="$sysroot"
2573 ;;
2574 tms470)
2575 add_cppflags -I"$sysinclude"
2576 add_ldflags --sysroot="$sysroot"
2577 ;;
2578 esac
2579 fi
2580
2581 if test "$cpu" = host; then
2582 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2583
2584 case "$cc_type" in
2585 gcc|llvm_gcc)
2586 check_native(){
2587 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2588 sed -n "/cc1.*$1=/{
2589 s/.*$1=\\([^ ]*\\).*/\\1/
2590 p
2591 q
2592 }" $TMPE
2593 }
2594 cpu=$(check_native -march || check_native -mcpu)
2595 ;;
2596 esac
2597
2598 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2599 fi
2600
2601 # Deal with common $arch aliases
2602 case "$arch" in
2603 aarch64|arm64)
2604 arch="aarch64"
2605 ;;
2606 arm*)
2607 arch="arm"
2608 ;;
2609 mips*|IP*)
2610 arch="mips"
2611 ;;
2612 parisc*|hppa*)
2613 arch="parisc"
2614 ;;
2615 "Power Macintosh"|ppc*|powerpc*)
2616 arch="ppc"
2617 ;;
2618 s390|s390x)
2619 arch="s390"
2620 ;;
2621 sh4|sh)
2622 arch="sh4"
2623 ;;
2624 sun4u|sparc*)
2625 arch="sparc"
2626 ;;
2627 tilegx|tile-gx)
2628 arch="tilegx"
2629 ;;
2630 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2631 arch="x86"
2632 ;;
2633 esac
2634
2635 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2636 enable $arch
2637
2638 # Add processor-specific flags
2639 if enabled aarch64; then
2640
2641 case $cpu in
2642 armv*)
2643 cpuflags="-march=$cpu"
2644 ;;
2645 *)
2646 cpuflags="-mcpu=$cpu"
2647 ;;
2648 esac
2649
2650 elif enabled alpha; then
2651
2652 cpuflags="-mcpu=$cpu"
2653
2654 elif enabled arm; then
2655
2656 check_arm_arch() {
2657 check_cpp_condition stddef.h \
2658 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2659 $cpuflags
2660 }
2661
2662 probe_arm_arch() {
2663 if check_arm_arch 4; then echo armv4;
2664 elif check_arm_arch 4T; then echo armv4t;
2665 elif check_arm_arch 5; then echo armv5;
2666 elif check_arm_arch 5E; then echo armv5e;
2667 elif check_arm_arch 5T; then echo armv5t;
2668 elif check_arm_arch 5TE; then echo armv5te;
2669 elif check_arm_arch 5TEJ; then echo armv5te;
2670 elif check_arm_arch 6; then echo armv6;
2671 elif check_arm_arch 6J; then echo armv6j;
2672 elif check_arm_arch 6K; then echo armv6k;
2673 elif check_arm_arch 6Z; then echo armv6z;
2674 elif check_arm_arch 6ZK; then echo armv6zk;
2675 elif check_arm_arch 6T2; then echo armv6t2;
2676 elif check_arm_arch 7; then echo armv7;
2677 elif check_arm_arch 7A 7_A; then echo armv7-a;
2678 elif check_arm_arch 7R 7_R; then echo armv7-r;
2679 elif check_arm_arch 7M 7_M; then echo armv7-m;
2680 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2681 elif check_arm_arch 8A 8_A; then echo armv8-a;
2682 fi
2683 }
2684
2685 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2686
2687 case $cpu in
2688 armv*)
2689 cpuflags="-march=$cpu"
2690 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2691 ;;
2692 *)
2693 cpuflags="-mcpu=$cpu"
2694 case $cpu in
2695 cortex-a*) subarch=armv7a ;;
2696 cortex-r*) subarch=armv7r ;;
2697 cortex-m*) enable thumb; subarch=armv7m ;;
2698 arm11*) subarch=armv6 ;;
2699 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2700 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2701 *) subarch=$(probe_arm_arch) ;;
2702 esac
2703 ;;
2704 esac
2705
2706 case "$subarch" in
2707 armv5t*) enable fast_clz ;;
2708 armv[6-8]*) enable fast_clz fast_unaligned ;;
2709 esac
2710
2711 elif enabled avr32; then
2712
2713 case $cpu in
2714 ap7[02]0[0-2])
2715 subarch="avr32_ap"
2716 cpuflags="-mpart=$cpu"
2717 ;;
2718 ap)
2719 subarch="avr32_ap"
2720 cpuflags="-march=$cpu"
2721 ;;
2722 uc3[ab]*)
2723 subarch="avr32_uc"
2724 cpuflags="-mcpu=$cpu"
2725 ;;
2726 uc)
2727 subarch="avr32_uc"
2728 cpuflags="-march=$cpu"
2729 ;;
2730 esac
2731
2732 elif enabled bfin; then
2733
2734 cpuflags="-mcpu=$cpu"
2735
2736 elif enabled mips; then
2737
2738 cpuflags="-march=$cpu"
2739
2740 elif enabled ppc; then
2741
2742 case $(tolower $cpu) in
2743 601|ppc601|powerpc601)
2744 cpuflags="-mcpu=601"
2745 disable altivec
2746 ;;
2747 603*|ppc603*|powerpc603*)
2748 cpuflags="-mcpu=603"
2749 disable altivec
2750 ;;
2751 604*|ppc604*|powerpc604*)
2752 cpuflags="-mcpu=604"
2753 disable altivec
2754 ;;
2755 g3|75*|ppc75*|powerpc75*)
2756 cpuflags="-mcpu=750"
2757 disable altivec
2758 ;;
2759 g4|745*|ppc745*|powerpc745*)
2760 cpuflags="-mcpu=7450"
2761 ;;
2762 74*|ppc74*|powerpc74*)
2763 cpuflags="-mcpu=7400"
2764 ;;
2765 g5|970|ppc970|powerpc970)
2766 cpuflags="-mcpu=970"
2767 ;;
2768 power[3-7]*)
2769 cpuflags="-mcpu=$cpu"
2770 ;;
2771 cell)
2772 cpuflags="-mcpu=cell"
2773 enable ldbrx
2774 ;;
2775 e500mc)
2776 cpuflags="-mcpu=e500mc"
2777 disable altivec
2778 ;;
2779 e500v2)
2780 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2781 disable altivec
2782 ;;
2783 e500)
2784 cpuflags="-mcpu=8540 -mhard-float"
2785 disable altivec
2786 ;;
2787 esac
2788
2789 elif enabled sparc; then
2790
2791 case $cpu in
2792 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2793 cpuflags="-mcpu=$cpu"
2794 disable vis
2795 ;;
2796 ultrasparc*|niagara[234])
2797 cpuflags="-mcpu=$cpu"
2798 ;;
2799 esac
2800
2801 elif enabled x86; then
2802
2803 case $cpu in
2804 i[345]86|pentium)
2805 cpuflags="-march=$cpu"
2806 disable mmx
2807 ;;
2808 # targets that do NOT support conditional mov (cmov)
2809 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2810 cpuflags="-march=$cpu"
2811 disable cmov
2812 ;;
2813 # targets that do support conditional mov (cmov)
2814 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2815 cpuflags="-march=$cpu"
2816 enable cmov
2817 enable fast_cmov
2818 ;;
2819 # targets that do support conditional mov but on which it's slow
2820 pentium4|pentium4m|prescott|nocona)
2821 cpuflags="-march=$cpu"
2822 enable cmov
2823 disable fast_cmov
2824 ;;
2825 esac
2826
2827 fi
2828
2829 if [ "$cpu" != generic ]; then
2830 add_cflags $cpuflags
2831 add_asflags $cpuflags
2832 fi
2833
2834 # compiler sanity check
2835 check_exec <<EOF
2836 int main(void){ return 0; }
2837 EOF
2838 if test "$?" != 0; then
2839 echo "$cc is unable to create an executable file."
2840 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2841 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2842 echo "Only do this if you know what cross compiling means."
2843 fi
2844 die "C compiler test failed."
2845 fi
2846
2847 add_cppflags -D_ISOC99_SOURCE
2848 check_cflags -std=c99
2849 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2850 #include <stdlib.h>
2851 EOF
2852 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2853 #include <stdlib.h>
2854 EOF
2855
2856 check_host_cflags -std=c99
2857 check_host_cflags -Wall
2858
2859 check_64bit(){
2860 arch32=$1
2861 arch64=$2
2862 expr=$3
2863 check_code cc "" "int test[2*($expr) - 1]" &&
2864 subarch=$arch64 || subarch=$arch32
2865 }
2866
2867 case "$arch" in
2868 aarch64|alpha|ia64)
2869 spic=$shared
2870 ;;
2871 mips)
2872 check_64bit mips mips64 '_MIPS_SIM > 1'
2873 spic=$shared
2874 ;;
2875 parisc)
2876 check_64bit parisc parisc64 'sizeof(void *) > 4'
2877 spic=$shared
2878 ;;
2879 ppc)
2880 check_64bit ppc ppc64 'sizeof(void *) > 4'
2881 spic=$shared
2882 ;;
2883 sparc)
2884 check_64bit sparc sparc64 'sizeof(void *) > 4'
2885 spic=$shared
2886 ;;
2887 x86)
2888 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
2889 if test "$subarch" = "x86_64"; then
2890 spic=$shared
2891 fi
2892 ;;
2893 esac
2894
2895 enable $subarch
2896 enabled spic && enable pic
2897
2898 # OS specific
2899 case $target_os in
2900 haiku)
2901 prefix_default="/boot/common"
2902 network_extralibs="-lnetwork"
2903 host_libs=
2904 ;;
2905 sunos)
2906 AVSERVERLDFLAGS=""
2907 SHFLAGS='-shared -Wl,-h,$$(@F)'
2908 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2909 network_extralibs="-lsocket -lnsl"
2910 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2911 # When using suncc to build, the Solaris linker will mark
2912 # an executable with each instruction set encountered by
2913 # the Solaris assembler. As our libraries contain their own
2914 # guards for processor-specific code, instead suppress
2915 # generation of the HWCAPS ELF section on Solaris x86 only.
2916 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2917 nm_default='nm -P -g'
2918 ;;
2919 netbsd)
2920 disable symver
2921 oss_indev_extralibs="-lossaudio"
2922 oss_outdev_extralibs="-lossaudio"
2923 ;;
2924 openbsd|bitrig)
2925 disable symver
2926 SHFLAGS='-shared'
2927 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
2928 SLIB_INSTALL_LINKS=
2929 oss_indev_extralibs="-lossaudio"
2930 oss_outdev_extralibs="-lossaudio"
2931 ;;
2932 dragonfly)
2933 disable symver
2934 ;;
2935 freebsd)
2936 ;;
2937 bsd/os)
2938 add_extralibs -lpoll -lgnugetopt
2939 ;;
2940 darwin)
2941 gas="gas-preprocessor.pl $cc"
2942 enabled ppc && add_asflags -force_cpusubtype_ALL
2943 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2944 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2945 add_ldflags -Wl,-dynamic,-search_paths_first
2946 SLIBSUF=".dylib"
2947 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2948 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2949 AVSERVERLDFLAGS=-Wl,-bind_at_load
2950 objformat="macho"
2951 enabled x86_64 && objformat="macho64"
2952 enabled_any pic shared ||
2953 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2954 ;;
2955 mingw32*)
2956 if test $target_os = "mingw32ce"; then
2957 disable network
2958 else
2959 target_os=mingw32
2960 fi
2961 LIBTARGET=i386
2962 if enabled x86_64; then
2963 LIBTARGET="i386:x86-64"
2964 elif enabled arm; then
2965 LIBTARGET=arm-wince
2966 fi
2967 shlibdir_default="$bindir_default"
2968 SLIBPREF=""
2969 SLIBSUF=".dll"
2970 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2971 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2972 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2973 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2974 SLIB_INSTALL_LINKS=
2975 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2976 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2977 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2978 objformat="win32"
2979 dlltool="${cross_prefix}dlltool"
2980 ranlib=:
2981 enable dos_paths
2982 ;;
2983 win32|win64)
2984 if enabled shared; then
2985 # Link to the import library instead of the normal static library
2986 # for shared libs.
2987 LD_LIB='%.lib'
2988 # Cannot build shared and static libraries at the same time with
2989 # MSVC.
2990 disable static
2991 fi
2992 shlibdir_default="$bindir_default"
2993 SLIBPREF=""
2994 SLIBSUF=".dll"
2995 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2996 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2997 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
2998 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2999 SLIB_INSTALL_LINKS=
3000 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3001 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3002 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3003 objformat="win32"
3004 ranlib=:
3005 enable dos_paths
3006 ;;
3007 cygwin*)
3008 target_os=cygwin
3009 shlibdir_default="$bindir_default"
3010 SLIBPREF="cyg"
3011 SLIBSUF=".dll"
3012 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3013 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3014 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3015 SLIB_INSTALL_LINKS=
3016 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3017 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3018 objformat="win32"
3019 enable dos_paths
3020 ;;
3021 *-dos|freedos|opendos)
3022 network_extralibs="-lsocket"
3023 objformat="coff"
3024 enable dos_paths
3025 add_cppflags -U__STRICT_ANSI__
3026 ;;
3027 linux)
3028 enable dv1394
3029 ;;
3030 irix*)
3031 target_os=irix
3032 ranlib="echo ignoring ranlib"
3033 ;;
3034 os/2*)
3035 ln_s="cp -f"
3036 objformat="aout"
3037 add_cppflags -D_GNU_SOURCE
3038 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3039 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3040 AVSERVERLDFLAGS=""
3041 LIBSUF="_s.a"
3042 SLIBPREF=""
3043 SLIBSUF=".dll"
3044 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3045 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3046 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3047 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3048 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3049 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3050 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3051 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3052 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3053 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3054 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3055 enable dos_paths
3056 ;;
3057 gnu/kfreebsd)
3058 add_cppflags -D_BSD_SOURCE
3059 ;;
3060 gnu)
3061 ;;
3062 qnx)
3063 add_cppflags -D_QNX_SOURCE
3064 network_extralibs="-lsocket"
3065 ;;
3066 symbian)
3067 SLIBSUF=".dll"
3068 enable dos_paths
3069 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3070 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3071 add_ldflags -Wl,--target1-abs,--no-undefined \
3072 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3073 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3074 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3075 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3076 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3077 ;;
3078 osf1)
3079 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3080 AVSERVERLDFLAGS=
3081 ;;
3082 minix)
3083 ;;
3084 plan9)
3085 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3086 -D_REENTRANT_SOURCE \
3087 -D_RESEARCH_SOURCE \
3088 -DFD_SETSIZE=96 \
3089 -DHAVE_SOCK_OPTS
3090 add_compat strtod.o strtod=avpriv_strtod
3091 network_extralibs='-lbsd'
3092 exeobjs=compat/plan9/main.o
3093 disable avserver
3094 cp_f='cp'
3095 ;;
3096 none)
3097 ;;
3098 *)
3099 die "Unknown OS '$target_os'."
3100 ;;
3101 esac
3102
3103 # determine libc flavour
3104
3105 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3106 if check_cpp_condition features.h "defined __UCLIBC__"; then
3107 libc_type=uclibc
3108 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3109 elif check_cpp_condition features.h "defined __GLIBC__"; then
3110 libc_type=glibc
3111 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3112 # MinGW headers can be installed on Cygwin, so check for newlib first.
3113 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3114 libc_type=newlib
3115 add_cppflags -U__STRICT_ANSI__
3116 elif check_header _mingw.h; then
3117 libc_type=mingw
3118 check_cpp_condition _mingw.h \
3119 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3120 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3121 die "ERROR: MinGW runtime version must be >= 3.15."
3122 add_cppflags -U__STRICT_ANSI__
3123 elif check_func_headers stdlib.h _get_doserrno; then
3124 libc_type=msvcrt
3125 add_compat strtod.o strtod=avpriv_strtod
3126 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3127 _snprintf=avpriv_snprintf \
3128 vsnprintf=avpriv_vsnprintf
3129 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3130 libc_type=klibc
3131 fi
3132
3133 test -n "$libc_type" && enable $libc_type
3134
3135 # hacks for compiler/libc/os combinations
3136
3137 if enabled_all tms470 glibc; then
3138 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3139 add_cppflags -D__USER_LABEL_PREFIX__=
3140 add_cppflags -D__builtin_memset=memset
3141 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3142 add_cflags -pds=48 # incompatible redefinition of macro
3143 fi
3144
3145 if enabled_all ccc glibc; then
3146 add_ldflags -Wl,-z,now # calls to libots crash without this
3147 fi
3148
3149 esc(){
3150 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3151 }
3152
3153 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3154
3155 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3156
3157 set_default $PATHS_LIST
3158 set_default nm
3159
3160 # we need to build at least one lib type
3161 if ! enabled_any static shared; then
3162 cat <<EOF
3163 At least one library type must be built.
3164 Specify --enable-static to build the static libraries or --enable-shared to
3165 build the shared libraries as well. To only build the shared libraries specify
3166 --disable-static in addition to --enable-shared.
3167 EOF
3168 exit 1;
3169 fi
3170
3171 die_license_disabled() {
3172 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3173 }
3174
3175 die_license_disabled gpl libcdio
3176 die_license_disabled gpl libx264
3177 die_license_disabled gpl libxavs
3178 die_license_disabled gpl libxvid
3179 die_license_disabled gpl x11grab
3180
3181 die_license_disabled nonfree libfaac
3182 die_license_disabled nonfree libfdk_aac
3183 die_license_disabled nonfree openssl
3184
3185 die_license_disabled version3 libopencore_amrnb
3186 die_license_disabled version3 libopencore_amrwb
3187 die_license_disabled version3 libvo_aacenc
3188 die_license_disabled version3 libvo_amrwbenc
3189
3190 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3191
3192 disabled optimizations || check_cflags -fomit-frame-pointer
3193
3194 enable_pic() {
3195 enable pic
3196 add_cppflags -DPIC
3197 add_cflags -fPIC
3198 add_asflags -fPIC
3199 }
3200
3201 enabled pic && enable_pic
3202
3203 check_cc <<EOF || die "Symbol mangling check failed."
3204 int ff_extern;
3205 EOF
3206 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3207 extern_prefix=${sym%%ff_extern*}
3208
3209 check_cc <<EOF && enable_weak inline_asm
3210 void foo(void) { __asm__ volatile ("" ::); }
3211 EOF
3212
3213 _restrict=
3214 for restrict_keyword in restrict __restrict__ __restrict; do
3215 check_cc <<EOF && _restrict=$restrict_keyword && break
3216 void foo(char * $restrict_keyword p);
3217 EOF
3218 done
3219
3220 check_cc <<EOF && enable attribute_packed
3221 struct { int x; } __attribute__((packed)) x;
3222 EOF
3223
3224 check_cc <<EOF && enable attribute_may_alias
3225 union { int x; } __attribute__((may_alias)) x;
3226 EOF
3227
3228 check_cc <<EOF || die "endian test failed"
3229 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3230 EOF
3231 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3232
3233 if enabled alpha; then
3234
3235 check_cflags -mieee
3236
3237 elif enabled arm; then
3238
3239 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3240 enabled thumb && check_cflags -mthumb || check_cflags -marm
3241 nogas=die
3242
3243 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3244 enable vfp_args
3245 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3246 case "${cross_prefix:-$cc}" in
3247 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3248 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3249 __asm__ (".eabi_attribute 28, 1");
3250 int main(void) { return 0; }
3251 EOF
3252 esac
3253 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3254 fi
3255
3256 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3257 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3258 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3259 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3260 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3261 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3262
3263 [ $target_os = linux ] ||
3264 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3265 $ARCH_EXT_LIST_ARM
3266
3267 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3268 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3269
3270 enabled_all armv6t2 shared !pic && enable_pic
3271
3272 elif enabled mips; then
3273
3274 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3275
3276 elif enabled parisc; then
3277
3278 if enabled gcc; then
3279 case $($cc -dumpversion) in
3280 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3281 esac
3282 fi
3283
3284 elif enabled ppc; then
3285
3286 enable local_aligned_8 local_aligned_16
3287
3288 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3289 check_inline_asm ibm_asm '"add 0, 0, 0"'
3290 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3291 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3292
3293 # AltiVec flags: The FSF version of GCC differs from the Apple version
3294 if enabled altivec; then
3295 nogas=warn
3296 check_cflags -maltivec -mabi=altivec &&
3297 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3298 check_cflags -faltivec
3299
3300 # check if our compiler supports Motorola AltiVec C API
3301 check_cc <<EOF || disable altivec
3302 $inc_altivec_h
3303 int main(void) {
3304 vector signed int v1 = (vector signed int) { 0 };
3305 vector signed int v2 = (vector signed int) { 1 };
3306 v1 = vec_add(v1, v2);
3307 return 0;
3308 }
3309 EOF
3310
3311 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3312 fi
3313
3314 elif enabled sparc; then
3315
3316 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3317
3318 elif enabled x86; then
3319
3320 check_builtin rdtsc intrin.h "__rdtsc()"
3321 check_builtin mm_empty mmintrin.h "_mm_empty()"
3322
3323 enable local_aligned_8 local_aligned_16
3324
3325 # check whether EBP is available on x86
3326 # As 'i' is stored on the stack, this program will crash
3327 # if the base pointer is used to access it because the
3328 # base pointer is cleared in the inline assembly code.
3329 check_exec_crash <<EOF && enable ebp_available
3330 volatile int i=0;
3331 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3332 return i;
3333 EOF
3334
3335 # check whether EBX is available on x86
3336 check_inline_asm ebx_available '""::"b"(0)' &&
3337 check_inline_asm ebx_available '"":::"%ebx"'
3338
3339 # check whether xmm clobbers are supported
3340 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3341
3342 # check whether binutils is new enough to compile SSSE3/MMXEXT
3343 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3344 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3345
3346 if ! disabled_any asm mmx yasm; then
3347 if check_cmd $yasmexe --version; then
3348 enabled x86_64 && yasm_extra="-m amd64"
3349 yasm_debug="-g dwarf2"
3350 elif check_cmd nasm -v; then
3351 yasmexe=nasm
3352 yasm_debug="-g -F dwarf"
3353 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3354 fi
3355
3356 YASMFLAGS="-f $objformat $yasm_extra"
3357 enabled pic && append YASMFLAGS "-DPIC"
3358 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3359 case "$objformat" in
3360 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3361 esac
3362
3363 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3364 die "yasm not found, use --disable-yasm for a crippled build"
3365 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3366 check_yasm "CPU amdnop" && enable cpunop
3367 fi
3368
3369 case "$cpu" in
3370 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3371 disable fast_clz
3372 ;;
3373 esac
3374
3375 fi
3376
3377 if enabled asm; then
3378 as=${gas:=$as}
3379 check_as <<EOF && enable gnu_as || \
3380 $nogas "GNU assembler not found, install gas-preprocessor"
3381 .macro m n
3382 \n: .int 0
3383 .endm
3384 m x
3385 EOF
3386 fi
3387
3388 check_ldflags -Wl,--as-needed
3389
3390 if check_func dlopen; then
3391 ldl=
3392 elif check_func dlopen -ldl; then
3393 ldl=-ldl
3394 fi
3395
3396 if ! disabled network; then
3397 check_type "sys/types.h sys/socket.h" socklen_t
3398 check_type netdb.h "struct addrinfo"
3399 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3400 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3401 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3402 check_type netinet/in.h "struct sockaddr_in6"
3403 check_type poll.h "struct pollfd"
3404 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3405 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3406 check_type netinet/sctp.h "struct sctp_event_subscribe"
3407 check_func getaddrinfo $network_extralibs
3408 check_func getservbyport $network_extralibs
3409 # Prefer arpa/inet.h over winsock2
3410 if check_header arpa/inet.h ; then
3411 check_func closesocket
3412 elif check_header winsock2.h ; then
3413 check_func_headers winsock2.h closesocket -lws2 &&
3414 network_extralibs="-lws2" ||
3415 { check_func_headers winsock2.h closesocket -lws2_32 &&
3416 network_extralibs="-lws2_32"; }
3417 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3418 check_type ws2tcpip.h socklen_t
3419 check_type ws2tcpip.h "struct addrinfo"
3420 check_type ws2tcpip.h "struct group_source_req"
3421 check_type ws2tcpip.h "struct ip_mreq_source"
3422 check_type ws2tcpip.h "struct ipv6_mreq"
3423 check_type winsock2.h "struct pollfd"
3424 check_type ws2tcpip.h "struct sockaddr_in6"
3425 check_type ws2tcpip.h "struct sockaddr_storage"
3426 check_struct winsock2.h "struct sockaddr" sa_len
3427 else
3428 disable network
3429 fi
3430 fi
3431
3432 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3433 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3434
3435 check_func fcntl
3436 check_func fork
3437 check_func gethrtime
3438 check_func getopt
3439 check_func getrusage
3440 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3441 check_func gettimeofday
3442 check_func inet_aton $network_extralibs
3443 check_func isatty
3444 check_func localtime_r
3445 check_func ${malloc_prefix}memalign && enable memalign
3446 check_func mkstemp
3447 check_func mmap
3448 check_func mprotect
3449 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3450 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3451 check_func setrlimit
3452 check_func strerror_r
3453 check_func strptime
3454 check_func strtok_r
3455 check_func sched_getaffinity
3456 check_func sysconf
3457 check_func sysctl
3458 check_func usleep
3459 check_func_headers io.h setmode
3460 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3461 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3462 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3463 check_func_headers windows.h GetProcessAffinityMask
3464 check_func_headers windows.h GetProcessTimes
3465 check_func_headers windows.h GetSystemTimeAsFileTime
3466 check_func_headers windows.h MapViewOfFile
3467 check_func_headers windows.h SetConsoleTextAttribute
3468 check_func_headers windows.h Sleep
3469 check_func_headers windows.h VirtualAlloc
3470
3471 check_header direct.h
3472 check_header dlfcn.h
3473 check_header dxva.h
3474 check_header dxva2api.h
3475 check_header io.h
3476 check_header malloc.h
3477 check_header poll.h
3478 check_header sys/mman.h
3479 check_header sys/param.h
3480 check_header sys/resource.h
3481 check_header sys/select.h
3482 check_header sys/time.h
3483 check_header unistd.h
3484 check_header vdpau/vdpau.h
3485 check_header vdpau/vdpau_x11.h
3486 check_header VideoDecodeAcceleration/VDADecoder.h
3487 check_header windows.h
3488 check_header X11/extensions/XvMClib.h
3489
3490 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3491 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3492
3493 if ! disabled w32threads && ! enabled pthreads; then
3494 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3495 fi
3496
3497 # check for some common methods of building with pthread support
3498 # do this before the optional library checks as some of them require pthreads
3499 if ! disabled pthreads && ! enabled w32threads; then
3500 enable pthreads
3501 if check_func pthread_create; then
3502 :
3503 elif check_func pthread_create -pthread; then
3504 add_cflags -pthread
3505 add_extralibs -pthread
3506 elif check_func pthread_create -pthreads; then
3507 add_cflags -pthreads
3508 add_extralibs -pthreads
3509 elif check_func pthread_create -lpthreadGC2; then
3510 add_extralibs -lpthreadGC2
3511 elif ! check_lib pthread.h pthread_create -lpthread; then
3512 disable pthreads
3513 fi
3514 fi
3515
3516 for thread in $THREADS_LIST; do
3517 if enabled $thread; then
3518 test -n "$thread_type" &&
3519 die "ERROR: Only one thread type must be selected." ||
3520 thread_type="$thread"
3521 fi
3522 done
3523
3524 check_lib math.h sin -lm && LIBM="-lm"
3525 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3526
3527 atan2f_args=2
3528 ldexpf_args=2
3529 powf_args=2
3530
3531 for func in $MATH_FUNCS; do
3532 eval check_mathfunc $func \${${func}_args:-1}
3533 done
3534
3535 # these are off by default, so fail if requested and not available
3536 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3537 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3538 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3539 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3540 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3541 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3542 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3543 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3544 done || die "ERROR: libgsm not found"; }
3545 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3546 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3547 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3548 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3549 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3550 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3551 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3552 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3553 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3554 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3555 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3556 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3557 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3558 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3559 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3560 enabled libvpx && {
3561 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3562 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3563 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3564 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3565 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3566 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3567 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3568 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3569 die "ERROR: libx264 version must be >= 0.118."; }
3570 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3571 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3572 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3573 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3574 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3575 die "ERROR: openssl not found"; }
3576
3577 if enabled gnutls; then
3578 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3579 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3580 fi
3581
3582 # libdc1394 check
3583 if enabled libdc1394; then
3584 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3585 enable libdc1394_2; } ||
3586 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3587 enable libdc1394_1; } ||
3588 die "ERROR: No version of libdc1394 found "
3589 fi
3590
3591 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3592 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3593 enable sdl &&
3594 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3595 fi
3596
3597 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3598
3599 check_header linux/fb.h
3600 check_header linux/videodev2.h
3601 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3602
3603 check_header sys/videoio.h
3604
3605 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3606 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3607 # w32api 3.12 had it defined wrong
3608 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3609
3610 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3611 { check_header dev/bktr/ioctl_meteor.h &&
3612 check_header dev/bktr/ioctl_bt848.h; } ||
3613 { check_header machine/ioctl_meteor.h &&
3614 check_header machine/ioctl_bt848.h; } ||
3615 { check_header dev/video/meteor/ioctl_meteor.h &&
3616 check_header dev/video/bktr/ioctl_bt848.h; } ||
3617 check_header dev/ic/bt8xx.h
3618
3619 check_header sndio.h
3620 check_header sys/soundcard.h
3621 check_header soundcard.h
3622
3623 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3624
3625 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3626 check_func jack_port_get_latency_range -ljack
3627
3628 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3629
3630 if enabled libcdio; then
3631 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3632 fi
3633
3634 enabled x11grab &&
3635 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3636 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3637 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3638
3639 enabled vdpau &&
3640 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3641 disable vdpau
3642
3643 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3644
3645 # add some useful compiler flags if supported
3646 check_cflags -Wdeclaration-after-statement
3647 check_cflags -Wall
3648 check_cflags -Wno-parentheses
3649 check_cflags -Wno-switch
3650 check_cflags -Wno-format-zero-length
3651 check_cflags -Wdisabled-optimization
3652 check_cflags -Wpointer-arith
3653 check_cflags -Wredundant-decls
3654 check_cflags -Wno-pointer-sign
3655 check_cflags -Wcast-qual
3656 check_cflags -Wwrite-strings
3657 check_cflags -Wtype-limits
3658 check_cflags -Wundef
3659 check_cflags -Wmissing-prototypes
3660 check_cflags -Wstrict-prototypes
3661 enabled extra_warnings && check_cflags -Winline
3662
3663 # add some linker flags
3664 check_ldflags -Wl,--warn-common
3665 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3666 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3667
3668 enabled xmm_clobber_test &&
3669 check_ldflags -Wl,--wrap,avcodec_open2 \
3670 -Wl,--wrap,avcodec_decode_audio4 \
3671 -Wl,--wrap,avcodec_decode_video2 \
3672 -Wl,--wrap,avcodec_decode_subtitle2 \
3673 -Wl,--wrap,avcodec_encode_audio2 \
3674 -Wl,--wrap,avcodec_encode_video \
3675 -Wl,--wrap,avcodec_encode_subtitle \
3676 -Wl,--wrap,sws_scale ||
3677 disable xmm_clobber_test
3678
3679 echo "X{};" > $TMPV
3680 if test_ldflags -Wl,--version-script,$TMPV; then
3681 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3682 check_cc <<EOF && enable symver_asm_label
3683 void ff_foo(void) __asm__ ("av_foo@VERSION");
3684 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3685 EOF
3686 check_cc <<EOF && enable symver_gnu_asm
3687 __asm__(".symver ff_foo,av_foo@VERSION");
3688 void ff_foo(void) {}
3689 EOF
3690 fi
3691
3692 if [ -z "$optflags" ]; then
3693 if enabled small; then
3694 optflags=$cflags_size
3695 elif enabled optimizations; then
3696 optflags=$cflags_sp