avplay: enable only when SDL 1.2 is found
[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 machine_rw_barrier
1289 malloc_h
1290 MapViewOfFile
1291 memalign
1292 MemoryBarrier
1293 mkstemp
1294 mm_empty
1295 mmap
1296 mprotect
1297 msvcrt
1298 nanosleep
1299 poll_h
1300 posix_memalign
1301 rdtsc
1302 sched_getaffinity
1303 sdl
1304 SetConsoleTextAttribute
1305 setmode
1306 setrlimit
1307 Sleep
1308 sndio_h
1309 socklen_t
1310 soundcard_h
1311 strerror_r
1312 strptime
1313 strtok_r
1314 struct_addrinfo
1315 struct_group_source_req
1316 struct_ip_mreq_source
1317 struct_ipv6_mreq
1318 struct_pollfd
1319 struct_rusage_ru_maxrss
1320 struct_sockaddr_in6
1321 struct_sockaddr_sa_len
1322 struct_sockaddr_storage
1323 struct_v4l2_frmivalenum_discrete
1324 symver_asm_label
1325 symver_gnu_asm
1326 sync_val_compare_and_swap
1327 sysconf
1328 sysctl
1329 sys_mman_h
1330 sys_param_h
1331 sys_resource_h
1332 sys_select_h
1333 sys_soundcard_h
1334 sys_time_h
1335 sys_videoio_h
1336 threads
1337 unistd_h
1338 usleep
1339 vfp_args
1340 VirtualAlloc
1341 windows_h
1342 winsock2_h
1343 xform_asm
1344 xmm_clobbers
1345 "
1346
1347 # options emitted with CONFIG_ prefix but not available on the command line
1348 CONFIG_EXTRA="
1349 aandcttables
1350 ac3dsp
1351 audio_frame_queue
1352 error_resilience
1353 gcrypt
1354 golomb
1355 gplv3
1356 h264chroma
1357 h264dsp
1358 h264pred
1359 h264qpel
1360 huffman
1361 lgplv3
1362 lpc
1363 mpegaudio
1364 mpegaudiodsp
1365 mpegvideo
1366 mpegvideoenc
1367 nettle
1368 rangecoder
1369 rtpdec
1370 rtpenc_chain
1371 sinewin
1372 videodsp
1373 vp3dsp
1374 "
1375
1376 CMDLINE_SELECT="
1377 $ARCH_EXT_LIST
1378 $CONFIG_LIST
1379 $HAVE_LIST_CMDLINE
1380 $THREADS_LIST
1381 asm
1382 cross_compile
1383 debug
1384 extra_warnings
1385 logging
1386 lto
1387 optimizations
1388 "
1389
1390 PATHS_LIST='
1391 bindir
1392 datadir
1393 incdir
1394 libdir
1395 mandir
1396 prefix
1397 shlibdir
1398 '
1399
1400 CMDLINE_SET="
1401 $PATHS_LIST
1402 ar
1403 arch
1404 as
1405 build_suffix
1406 cc
1407 cpu
1408 cross_prefix
1409 dep_cc
1410 extra_version
1411 host_cc
1412 host_cflags
1413 host_ld
1414 host_ldflags
1415 host_libs
1416 host_os
1417 ld
1418 logfile
1419 malloc_prefix
1420 nm
1421 optflags
1422 pkg_config
1423 random_seed
1424 samples
1425 sysinclude
1426 sysroot
1427 target_exec
1428 target_os
1429 target_path
1430 toolchain
1431 "
1432
1433 CMDLINE_APPEND="
1434 extra_cflags
1435 host_cppflags
1436 "
1437
1438 # code dependency declarations
1439
1440 # architecture extensions
1441
1442 armv5te_deps="arm"
1443 armv6_deps="arm"
1444 armv6t2_deps="arm"
1445 neon_deps="arm"
1446 vfp_deps="arm"
1447 vfpv3_deps="vfp"
1448
1449 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1450
1451 altivec_deps="ppc"
1452 ppc4xx_deps="ppc"
1453
1454 vis_deps="sparc"
1455
1456 x86_64_suggest="cmov fast_cmov"
1457
1458 amd3dnow_deps="mmx"
1459 amd3dnowext_deps="amd3dnow"
1460 mmx_deps="x86"
1461 mmxext_deps="mmx"
1462 sse_deps="mmxext"
1463 sse2_deps="sse"
1464 sse3_deps="sse2"
1465 ssse3_deps="sse3"
1466 sse4_deps="ssse3"
1467 sse42_deps="sse4"
1468 avx_deps="sse42"
1469 fma4_deps="avx"
1470
1471 mmx_external_deps="yasm"
1472 mmx_inline_deps="inline_asm"
1473 mmx_suggest="mmx_external mmx_inline"
1474
1475 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1476 eval dep=\$${ext}_deps
1477 eval ${ext}_external_deps='"${dep}_external"'
1478 eval ${ext}_inline_deps='"${dep}_inline"'
1479 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1480 done
1481
1482 aligned_stack_if_any="ppc x86"
1483 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1484 fast_clz_if_any="alpha avr32 mips ppc x86"
1485 fast_unaligned_if_any="ppc x86"
1486
1487 inline_asm_deps="!tms470"
1488 need_memalign="altivec neon sse"
1489
1490 symver_if_any="symver_asm_label symver_gnu_asm"
1491
1492 log2_deps="!msvcrt"
1493
1494 # subsystems
1495 dct_select="rdft"
1496 mdct_select="fft"
1497 rdft_select="fft"
1498 mpegaudio_select="mpegaudiodsp"
1499 mpegaudiodsp_select="dct"
1500 mpegvideo_select="videodsp"
1501 mpegvideoenc_select="mpegvideo"
1502
1503 # decoders / encoders
1504 aac_decoder_select="mdct sinewin"
1505 aac_encoder_select="audio_frame_queue mdct sinewin"
1506 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1507 ac3_decoder_select="mdct ac3dsp ac3_parser"
1508 ac3_encoder_select="mdct ac3dsp"
1509 ac3_fixed_encoder_select="mdct ac3dsp"
1510 alac_encoder_select="lpc"
1511 amrnb_decoder_select="lsp"
1512 amrwb_decoder_select="lsp"
1513 atrac1_decoder_select="mdct sinewin"
1514 atrac3_decoder_select="mdct"
1515 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1516 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1517 cavs_decoder_select="golomb h264chroma mpegvideo videodsp"
1518 comfortnoise_encoder_select="lpc"
1519 cook_decoder_select="mdct sinewin"
1520 cscd_decoder_select="lzo"
1521 cscd_decoder_suggest="zlib"
1522 dca_decoder_select="mdct"
1523 dnxhd_encoder_select="aandcttables mpegvideoenc"
1524 dxa_decoder_select="zlib"
1525 eac3_decoder_select="ac3_decoder"
1526 eac3_encoder_select="ac3_encoder"
1527 eamad_decoder_select="aandcttables mpegvideo"
1528 eatgq_decoder_select="aandcttables"
1529 eatqi_decoder_select="aandcttables mpegvideo"
1530 ffv1_decoder_select="golomb rangecoder"
1531 ffv1_encoder_select="rangecoder"
1532 ffvhuff_encoder_select="huffman"
1533 flac_decoder_select="golomb"
1534 flac_encoder_select="golomb lpc"
1535 flashsv_decoder_select="zlib"
1536 flashsv_encoder_select="zlib"
1537 flashsv2_decoder_select="zlib"
1538 flv_decoder_select="h263_decoder"
1539 flv_encoder_select="h263_encoder"
1540 fraps_decoder_select="huffman"
1541 h261_decoder_select="error_resilience mpegvideo"
1542 h261_encoder_select="aandcttables mpegvideoenc"
1543 h263_decoder_select="error_resilience h263_parser mpegvideo"
1544 h263_encoder_select="aandcttables mpegvideoenc"
1545 h263i_decoder_select="h263_decoder"
1546 h263p_encoder_select="h263_encoder"
1547 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel videodsp"
1548 huffyuv_encoder_select="huffman"
1549 iac_decoder_select="fft mdct sinewin"
1550 imc_decoder_select="fft mdct sinewin"
1551 jpegls_decoder_select="golomb"
1552 jpegls_encoder_select="golomb"
1553 ljpeg_encoder_select="aandcttables mpegvideoenc"
1554 loco_decoder_select="golomb"
1555 mdec_decoder_select="error_resilience mpegvideo"
1556 mjpeg_encoder_select="aandcttables mpegvideoenc"
1557 mlp_decoder_select="mlp_parser"
1558 mp1_decoder_select="mpegaudio"
1559 mp1float_decoder_select="mpegaudio"
1560 mp2_decoder_select="mpegaudio"
1561 mp2float_decoder_select="mpegaudio"
1562 mp3_decoder_select="mpegaudio"
1563 mp3adu_decoder_select="mpegaudio"
1564 mp3adufloat_decoder_select="mpegaudio"
1565 mp3float_decoder_select="mpegaudio"
1566 mp3on4_decoder_select="mpegaudio"
1567 mp3on4float_decoder_select="mpegaudio"
1568 mpc7_decoder_select="mpegaudiodsp"
1569 mpc8_decoder_select="mpegaudiodsp"
1570 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1571 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1572 mpeg1video_decoder_select="error_resilience mpegvideo"
1573 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1574 mpeg2video_decoder_select="error_resilience mpegvideo"
1575 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1576 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1577 mpeg4_encoder_select="h263_encoder"
1578 msmpeg4v1_decoder_select="h263_decoder"
1579 msmpeg4v1_encoder_select="h263_encoder"
1580 msmpeg4v2_decoder_select="h263_decoder"
1581 msmpeg4v2_encoder_select="h263_encoder"
1582 msmpeg4v3_decoder_select="h263_decoder"
1583 msmpeg4v3_encoder_select="h263_encoder"
1584 mss2_decoder_select="error_resilience vc1_decoder"
1585 nellymoser_decoder_select="mdct sinewin"
1586 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1587 nuv_decoder_select="lzo"
1588 png_decoder_select="zlib"
1589 png_encoder_select="zlib"
1590 qcelp_decoder_select="lsp"
1591 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1592 ra_144_encoder_select="audio_frame_queue lpc"
1593 ralf_decoder_select="golomb"
1594 rv10_decoder_select="error_resilience h263_decoder"
1595 rv10_encoder_select="h263_encoder"
1596 rv20_decoder_select="error_resilience h263_decoder"
1597 rv20_encoder_select="h263_encoder"
1598 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1599 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1600 shorten_decoder_select="golomb"
1601 sipr_decoder_select="lsp"
1602 svq1_decoder_select="mpegvideo"
1603 svq1_encoder_select="aandcttables mpegvideoenc"
1604 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1605 svq3_decoder_suggest="zlib"
1606 theora_decoder_select="vp3_decoder"
1607 tiff_decoder_suggest="zlib"
1608 tiff_encoder_suggest="zlib"
1609 truehd_decoder_select="mlp_decoder"
1610 tscc_decoder_select="zlib"
1611 twinvq_decoder_select="mdct lsp sinewin"
1612 utvideo_encoder_select="huffman"
1613 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1614 vc1image_decoder_select="vc1_decoder"
1615 vorbis_decoder_select="mdct"
1616 vorbis_encoder_select="mdct"
1617 vp3_decoder_select="vp3dsp videodsp"
1618 vp5_decoder_select="h264chroma videodsp vp3dsp"
1619 vp6_decoder_select="h264chroma huffman videodsp vp3dsp"
1620 vp6a_decoder_select="vp6_decoder"
1621 vp6f_decoder_select="vp6_decoder"
1622 vp8_decoder_select="h264pred videodsp"
1623 wmapro_decoder_select="mdct sinewin"
1624 wmav1_decoder_select="mdct sinewin"
1625 wmav1_encoder_select="mdct sinewin"
1626 wmav2_decoder_select="mdct sinewin"
1627 wmav2_encoder_select="mdct sinewin"
1628 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1629 wmv1_decoder_select="h263_decoder"
1630 wmv1_encoder_select="h263_encoder"
1631 wmv2_decoder_select="h263_decoder videodsp"
1632 wmv2_encoder_select="h263_encoder"
1633 wmv3_decoder_select="vc1_decoder"
1634 wmv3image_decoder_select="wmv3_decoder"
1635 zerocodec_decoder_select="zlib"
1636 zlib_decoder_select="zlib"
1637 zlib_encoder_select="zlib"
1638 zmbv_decoder_select="zlib"
1639 zmbv_encoder_select="zlib"
1640
1641 # hardware accelerators
1642 dxva2_deps="dxva2api_h"
1643 vaapi_deps="va_va_h"
1644 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1645 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1646 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1647
1648 h263_vaapi_hwaccel_deps="vaapi"
1649 h263_vaapi_hwaccel_select="h263_decoder"
1650 h263_vdpau_hwaccel_deps="vdpau"
1651 h263_vdpau_hwaccel_select="h263_decoder"
1652 h264_dxva2_hwaccel_deps="dxva2"
1653 h264_dxva2_hwaccel_select="h264_decoder"
1654 h264_vaapi_hwaccel_deps="vaapi"
1655 h264_vaapi_hwaccel_select="h264_decoder"
1656 h264_vda_hwaccel_deps="vda"
1657 h264_vda_hwaccel_select="h264_decoder"
1658 h264_vdpau_decoder_deps="vdpau"
1659 h264_vdpau_decoder_select="h264_decoder"
1660 h264_vdpau_hwaccel_deps="vdpau"
1661 h264_vdpau_hwaccel_select="h264_decoder"
1662 mpeg_vdpau_decoder_deps="vdpau"
1663 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1664 mpeg1_vdpau_decoder_deps="vdpau"
1665 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1666 mpeg1_vdpau_hwaccel_deps="vdpau"
1667 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1668 mpeg2_dxva2_hwaccel_deps="dxva2"
1669 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1670 mpeg2_vaapi_hwaccel_deps="vaapi"
1671 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1672 mpeg2_vdpau_hwaccel_deps="vdpau"
1673 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1674 mpeg4_vaapi_hwaccel_deps="vaapi"
1675 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1676 mpeg4_vdpau_decoder_deps="vdpau"
1677 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1678 mpeg4_vdpau_hwaccel_deps="vdpau"
1679 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1680 vc1_dxva2_hwaccel_deps="dxva2"
1681 vc1_dxva2_hwaccel_select="vc1_decoder"
1682 vc1_vaapi_hwaccel_deps="vaapi"
1683 vc1_vaapi_hwaccel_select="vc1_decoder"
1684 vc1_vdpau_decoder_deps="vdpau"
1685 vc1_vdpau_decoder_select="vc1_decoder"
1686 vc1_vdpau_hwaccel_deps="vdpau"
1687 vc1_vdpau_hwaccel_select="vc1_decoder"
1688 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1689 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1690 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1691 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1692
1693 # parsers
1694 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel videodsp"
1695 mpeg4video_parser_select="error_resilience mpegvideo"
1696 mpegvideo_parser_select="error_resilience mpegvideo"
1697 vc1_parser_select="mpegvideo"
1698
1699 # external libraries
1700 libfaac_encoder_deps="libfaac"
1701 libfaac_encoder_select="audio_frame_queue"
1702 libfdk_aac_encoder_deps="libfdk_aac"
1703 libfdk_aac_encoder_select="audio_frame_queue"
1704 libgsm_decoder_deps="libgsm"
1705 libgsm_encoder_deps="libgsm"
1706 libgsm_ms_decoder_deps="libgsm"
1707 libgsm_ms_encoder_deps="libgsm"
1708 libilbc_decoder_deps="libilbc"
1709 libilbc_encoder_deps="libilbc"
1710 libmp3lame_encoder_deps="libmp3lame"
1711 libmp3lame_encoder_select="audio_frame_queue"
1712 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1713 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1714 libopencore_amrnb_encoder_select="audio_frame_queue"
1715 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1716 libopenjpeg_decoder_deps="libopenjpeg"
1717 libopenjpeg_encoder_deps="libopenjpeg"
1718 libopus_decoder_deps="libopus"
1719 libopus_encoder_deps="libopus"
1720 libopus_encoder_select="audio_frame_queue"
1721 libschroedinger_decoder_deps="libschroedinger"
1722 libschroedinger_encoder_deps="libschroedinger"
1723 libspeex_decoder_deps="libspeex"
1724 libspeex_encoder_deps="libspeex"
1725 libspeex_encoder_select="audio_frame_queue"
1726 libtheora_encoder_deps="libtheora"
1727 libvo_aacenc_encoder_deps="libvo_aacenc"
1728 libvo_aacenc_encoder_select="audio_frame_queue"
1729 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1730 libvorbis_encoder_deps="libvorbis"
1731 libvorbis_encoder_select="audio_frame_queue"
1732 libvpx_vp8_decoder_deps="libvpx"
1733 libvpx_vp8_encoder_deps="libvpx"
1734 libvpx_vp9_decoder_deps="libvpx"
1735 libvpx_vp9_encoder_deps="libvpx"
1736 libx264_encoder_deps="libx264"
1737 libxavs_encoder_deps="libxavs"
1738 libxvid_encoder_deps="libxvid"
1739
1740 # demuxers / muxers
1741 ac3_demuxer_select="ac3_parser"
1742 asf_stream_muxer_select="asf_muxer"
1743 avisynth_demuxer_deps="avisynth"
1744 dirac_demuxer_select="dirac_parser"
1745 eac3_demuxer_select="ac3_parser"
1746 flac_demuxer_select="flac_parser"
1747 ipod_muxer_select="mov_muxer"
1748 ismv_muxer_select="mov_muxer"
1749 matroska_audio_muxer_select="matroska_muxer"
1750 matroska_demuxer_suggest="bzlib lzo zlib"
1751 mov_demuxer_suggest="zlib"
1752 mov_muxer_select="rtpenc_chain"
1753 mp3_demuxer_select="mpegaudio_parser"
1754 mp4_muxer_select="mov_muxer"
1755 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1756 mpegtsraw_demuxer_select="mpegts_demuxer"
1757 mxf_d10_muxer_select="mxf_muxer"
1758 ogg_demuxer_select="golomb"
1759 psp_muxer_select="mov_muxer"
1760 rtp_demuxer_select="sdp_demuxer"
1761 rtp_muxer_select="mpegvideo"
1762 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1763 rtsp_demuxer_select="http_protocol rtpdec"
1764 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1765 sap_demuxer_select="sdp_demuxer"
1766 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1767 sdp_demuxer_select="rtpdec"
1768 smoothstreaming_muxer_select="ismv_muxer"
1769 spdif_muxer_select="aac_parser"
1770 tak_demuxer_select="tak_parser"
1771 tg2_muxer_select="mov_muxer"
1772 tgp_muxer_select="mov_muxer"
1773 w64_demuxer_deps="wav_demuxer"
1774
1775 # indevs / outdevs
1776 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1777 alsa_outdev_deps="alsa_asoundlib_h"
1778 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1779 dv1394_indev_deps="dv1394 dv_demuxer"
1780 fbdev_indev_deps="linux_fb_h"
1781 jack_indev_deps="jack_jack_h"
1782 libcdio_indev_deps="libcdio"
1783 libdc1394_indev_deps="libdc1394"
1784 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1785 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1786 pulse_indev_deps="libpulse"
1787 sndio_indev_deps="sndio_h"
1788 sndio_outdev_deps="sndio_h"
1789 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1790 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1791 vfwcap_indev_extralibs="-lavicap32"
1792 x11grab_indev_deps="x11grab XShmCreateImage"
1793
1794 # protocols
1795 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1796 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1797 ffrtmpcrypt_protocol_select="tcp_protocol"
1798 ffrtmphttp_protocol_deps="!librtmp_protocol"
1799 ffrtmphttp_protocol_select="http_protocol"
1800 gopher_protocol_select="network"
1801 httpproxy_protocol_select="tcp_protocol"
1802 http_protocol_select="tcp_protocol"
1803 https_protocol_select="tls_protocol"
1804 librtmp_protocol_deps="librtmp"
1805 librtmpe_protocol_deps="librtmp"
1806 librtmps_protocol_deps="librtmp"
1807 librtmpt_protocol_deps="librtmp"
1808 librtmpte_protocol_deps="librtmp"
1809 mmsh_protocol_select="http_protocol"
1810 mmst_protocol_select="network"
1811 rtmp_protocol_deps="!librtmp_protocol"
1812 rtmp_protocol_select="tcp_protocol"
1813 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1814 rtmps_protocol_deps="!librtmp_protocol"
1815 rtmps_protocol_select="tls_protocol"
1816 rtmpt_protocol_select="ffrtmphttp_protocol"
1817 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1818 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1819 rtp_protocol_select="udp_protocol"
1820 sctp_protocol_deps="struct_sctp_event_subscribe"
1821 sctp_protocol_select="network"
1822 srtp_protocol_select="rtp_protocol"
1823 tcp_protocol_select="network"
1824 tls_protocol_deps_any="openssl gnutls"
1825 tls_protocol_select="tcp_protocol"
1826 udp_protocol_select="network"
1827
1828 # filters
1829 blackframe_filter_deps="gpl"
1830 boxblur_filter_deps="gpl"
1831 cropdetect_filter_deps="gpl"
1832 delogo_filter_deps="gpl"
1833 drawtext_filter_deps="libfreetype"
1834 frei0r_filter_deps="frei0r dlopen strtok_r"
1835 frei0r_filter_extralibs='$ldl'
1836 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1837 frei0r_src_filter_extralibs='$ldl'
1838 hqdn3d_filter_deps="gpl"
1839 resample_filter_deps="avresample"
1840 ocv_filter_deps="libopencv"
1841 scale_filter_deps="swscale"
1842 yadif_filter_deps="gpl"
1843
1844 # libraries
1845 avcodec_deps="avutil"
1846 avdevice_deps="avutil avcodec avformat"
1847 avfilter_deps="avutil"
1848 avformat_deps="avutil avcodec"
1849 avresample_deps="avutil"
1850 swscale_deps="avutil"
1851
1852 # programs
1853 avconv_deps="avcodec avfilter avformat avresample swscale"
1854 avconv_select="aformat_filter anull_filter asyncts_filter format_filter
1855 fps_filter null_filter resample_filter scale_filter
1856 setpts_filter"
1857 avplay_deps="avcodec avformat avresample swscale sdl"
1858 avplay_select="rdft"
1859 avprobe_deps="avcodec avformat"
1860 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1861 avserver_extralibs='$ldl'
1862
1863 doc_deps="texi2html"
1864
1865 # default parameters
1866
1867 logfile="config.log"
1868
1869 # installation paths
1870 prefix_default="/usr/local"
1871 bindir_default='${prefix}/bin'
1872 datadir_default='${prefix}/share/avconv'
1873 incdir_default='${prefix}/include'
1874 libdir_default='${prefix}/lib'
1875 mandir_default='${prefix}/share/man'
1876 shlibdir_default="$libdir_default"
1877
1878 # toolchain
1879 ar_default="ar"
1880 cc_default="gcc"
1881 host_cc_default="gcc"
1882 cp_f="cp -f"
1883 ln_s="ln -s -f"
1884 nm_default="nm -g"
1885 objformat="elf"
1886 pkg_config_default=pkg-config
1887 ranlib="ranlib"
1888 yasmexe="yasm"
1889
1890 nogas=":"
1891
1892 # machine
1893 arch_default=$(uname -m)
1894 cpu="generic"
1895
1896 # OS
1897 target_os_default=$(tolower $(uname -s))
1898 host_os=$target_os_default
1899
1900 # configurable options
1901 enable $LIBRARY_LIST $PROGRAM_LIST
1902
1903 enable asm
1904 enable debug
1905 enable doc
1906 enable optimizations
1907 enable safe_bitstream_reader
1908 enable static
1909 enable swscale_alpha
1910
1911 # build settings
1912 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1913 AVSERVERLDFLAGS=-Wl,-E
1914 LIBPREF="lib"
1915 LIBSUF=".a"
1916 FULLNAME='$(NAME)$(BUILDSUF)'
1917 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1918 SLIBPREF="lib"
1919 SLIBSUF=".so"
1920 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1921 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1922 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1923 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1924 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1925 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1926
1927 asflags_filter=echo
1928 cflags_filter=echo
1929 ldflags_filter=echo
1930
1931 AS_C='-c'
1932 AS_O='-o $@'
1933 CC_C='-c'
1934 CC_E='-E -o $@'
1935 CC_O='-o $@'
1936 LD_O='-o $@'
1937 LD_LIB='-l%'
1938 LD_PATH='-L'
1939 HOSTCC_C='-c'
1940 HOSTCC_O='-o $@'
1941 HOSTLD_O='-o $@'
1942
1943 host_cflags='-O3 -g'
1944 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
1945 host_libs='-lm'
1946 host_cflags_filter=echo
1947 host_ldflags_filter=echo
1948
1949 target_path='$(CURDIR)'
1950
1951 # since the object filename is not given with the -MM flag, the compiler
1952 # is only able to print the basename, and we must add the path ourselves
1953 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1954 DEPFLAGS='-MM'
1955
1956 # find source path
1957 if test -f configure; then
1958 source_path=.
1959 else
1960 source_path=$(cd $(dirname "$0"); pwd)
1961 echo "$source_path" | grep -q '[[:blank:]]' &&
1962 die "Out of tree builds are impossible with whitespace in source path."
1963 test -e "$source_path/config.h" &&
1964 die "Out of tree builds are impossible with config.h in source dir."
1965 fi
1966
1967 for v in "$@"; do
1968 r=${v#*=}
1969 l=${v%"$r"}
1970 r=$(sh_quote "$r")
1971 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1972 done
1973
1974 find_things(){
1975 thing=$1
1976 pattern=$2
1977 file=$source_path/$3
1978 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1979 }
1980
1981 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1982 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1983 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1984 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1985 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1986 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1987 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1988 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1989 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1990 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1991 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1992
1993 ALL_COMPONENTS="
1994 $BSF_LIST
1995 $DECODER_LIST
1996 $DEMUXER_LIST
1997 $ENCODER_LIST
1998 $FILTER_LIST
1999 $HWACCEL_LIST
2000 $INDEV_LIST
2001 $MUXER_LIST
2002 $OUTDEV_LIST
2003 $PARSER_LIST
2004 $PROTOCOL_LIST
2005 "
2006
2007 for n in $COMPONENT_LIST; do
2008 v=$(toupper ${n%s})_LIST
2009 eval enable \$$v
2010 eval ${n}_if_any="\$$v"
2011 done
2012
2013 enable $ARCH_EXT_LIST
2014
2015 die_unknown(){
2016 echo "Unknown option \"$1\"."
2017 echo "See $0 --help for available options."
2018 exit 1
2019 }
2020
2021 print_3_columns() {
2022 cat | tr ' ' '\n' | sort | pr -r -3 -t
2023 }
2024
2025 show_list() {
2026 suffix=_$1
2027 shift
2028 echo $* | sed s/$suffix//g | print_3_columns
2029 exit 0
2030 }
2031
2032 rand_list(){
2033 IFS=', '
2034 set -- $*
2035 unset IFS
2036 for thing; do
2037 comp=${thing%:*}
2038 prob=${thing#$comp}
2039 prob=${prob#:}
2040 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2041 echo "prob ${prob:-0.5}"
2042 printf '%s\n' $comp
2043 done
2044 }
2045
2046 do_random(){
2047 action=$1
2048 shift
2049 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2050 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2051 }
2052
2053 for opt do
2054 optval="${opt#*=}"
2055 case "$opt" in
2056 --extra-ldflags=*)
2057 add_ldflags $optval
2058 ;;
2059 --extra-libs=*)
2060 add_extralibs $optval
2061 ;;
2062 --disable-devices)
2063 disable $INDEV_LIST $OUTDEV_LIST
2064 ;;
2065 --enable-debug=*)
2066 debuglevel="$optval"
2067 ;;
2068 --disable-programs)
2069 disable $PROGRAM_LIST
2070 ;;
2071 --disable-everything)
2072 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2073 ;;
2074 --disable-all)
2075 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2076 disable $LIBRARY_LIST $PROGRAM_LIST doc
2077 ;;
2078 --enable-random|--disable-random)
2079 action=${opt%%-random}
2080 do_random ${action#--} $COMPONENT_LIST
2081 ;;
2082 --enable-random=*|--disable-random=*)
2083 action=${opt%%-random=*}
2084 do_random ${action#--} $optval
2085 ;;
2086 --enable-*=*|--disable-*=*)
2087 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2088 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2089 eval list=\$$(toupper $thing)_LIST
2090 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2091 $action $(filter "$name" $list)
2092 ;;
2093 --enable-?*|--disable-?*)
2094 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2095 if is_in $option $COMPONENT_LIST; then
2096 test $action = disable && action=unset
2097 eval $action \$$(toupper ${option%s})_LIST
2098 elif is_in $option $CMDLINE_SELECT; then
2099 $action $option
2100 else
2101 die_unknown $opt
2102 fi
2103 ;;
2104 --list-*)
2105 NAME="${opt#--list-}"
2106 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2107 NAME=${NAME%s}
2108 eval show_list $NAME \$$(toupper $NAME)_LIST
2109 ;;
2110 --help|-h) show_help
2111 ;;
2112 *)
2113 optname="${opt%%=*}"
2114 optname="${optname#--}"
2115 optname=$(echo "$optname" | sed 's/-/_/g')
2116 if is_in $optname $CMDLINE_SET; then
2117 eval $optname='$optval'
2118 elif is_in $optname $CMDLINE_APPEND; then
2119 append $optname "$optval"
2120 else
2121 die_unknown $opt
2122 fi
2123 ;;
2124 esac
2125 done
2126
2127 disabled logging && logfile=/dev/null
2128
2129 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2130 set >> $logfile
2131
2132 test -n "$cross_prefix" && enable cross_compile
2133
2134 if enabled cross_compile; then
2135 test -n "$arch" && test -n "$target_os" ||
2136 die "Must specify target arch and OS when cross-compiling"
2137 fi
2138
2139 ar_default="${cross_prefix}${ar_default}"
2140 cc_default="${cross_prefix}${cc_default}"
2141 nm_default="${cross_prefix}${nm_default}"
2142 pkg_config_default="${cross_prefix}${pkg_config_default}"
2143 ranlib="${cross_prefix}${ranlib}"
2144
2145 sysinclude_default="${sysroot}/usr/include"
2146
2147 case "$toolchain" in
2148 clang-asan)
2149 cc_default="clang"
2150 add_cflags -faddress-sanitizer
2151 add_ldflags -faddress-sanitizer
2152 ;;
2153 clang-tsan)
2154 cc_default="clang"
2155 add_cflags -fthread-sanitizer
2156 add_ldflags -fthread-sanitizer
2157 ;;
2158 msvc)
2159 cc_default="c99wrap cl"
2160 ld_default="c99wrap link"
2161 nm_default="dumpbin -symbols"
2162 ar_default="lib"
2163 target_os_default="win32"
2164 ;;
2165 ?*)
2166 die "Unknown toolchain $toolchain"
2167 ;;
2168 esac
2169
2170 set_default arch cc pkg_config sysinclude target_os
2171 enabled cross_compile || host_cc_default=$cc
2172 set_default host_cc
2173
2174 if ! $pkg_config --version >/dev/null 2>&1; then
2175 warn "$pkg_config not found, library detection may fail."
2176 pkg_config=false
2177 fi
2178
2179 exesuf() {
2180 case $1 in
2181 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2182 esac
2183 }
2184
2185 EXESUF=$(exesuf $target_os)
2186 HOSTEXESUF=$(exesuf $host_os)
2187
2188 # set temporary file name
2189 : ${TMPDIR:=$TEMPDIR}
2190 : ${TMPDIR:=$TMP}
2191 : ${TMPDIR:=/tmp}
2192
2193 if ! check_cmd mktemp -u XXXXXX; then
2194 # simple replacement for missing mktemp
2195 # NOT SAFE FOR GENERAL USE
2196 mktemp(){
2197 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2198 }
2199 fi
2200
2201 tmpfile(){
2202 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2203 (set -C; exec > $tmp) 2>/dev/null ||
2204 die "Unable to create temporary file in $TMPDIR."
2205 append TMPFILES $tmp
2206 eval $1=$tmp
2207 }
2208
2209 trap 'rm -f -- $TMPFILES' EXIT
2210
2211 tmpfile TMPASM .asm
2212 tmpfile TMPC .c
2213 tmpfile TMPE $EXESUF
2214 tmpfile TMPH .h
2215 tmpfile TMPO .o
2216 tmpfile TMPS .S
2217 tmpfile TMPSH .sh
2218 tmpfile TMPV .ver
2219
2220 unset -f mktemp
2221
2222 chmod +x $TMPE
2223
2224 # make sure we can execute files in $TMPDIR
2225 cat > $TMPSH 2>> $logfile <<EOF
2226 #! /bin/sh
2227 EOF
2228 chmod +x $TMPSH >> $logfile 2>&1
2229 if ! $TMPSH >> $logfile 2>&1; then
2230 cat <<EOF
2231 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2232 variable to another directory and make sure that it is not mounted noexec.
2233 EOF
2234 die "Sanity test failed."
2235 fi
2236
2237 ccc_flags(){
2238 for flag; do
2239 case $flag in
2240 -std=c99) echo -c99 ;;
2241 -mcpu=*) echo -arch ${flag#*=} ;;
2242 -mieee) echo -ieee ;;
2243 -O*|-fast) echo $flag ;;
2244 -fno-math-errno) echo -assume nomath_errno ;;
2245 -g) echo -g3 ;;
2246 -Wall) echo -msg_enable level2 ;;
2247 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2248 -Wl,*) echo $flag ;;
2249 -f*|-W*) ;;
2250 *) echo $flag ;;
2251 esac
2252 done
2253 }
2254
2255 msvc_flags(){
2256 for flag; do
2257 case $flag in
2258 -fomit-frame-pointer) echo -Oy ;;
2259 -g) echo -Z7 ;;
2260 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2261 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2262 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2263 -wd4996 -wd4273 ;;
2264 -std=c99) ;;
2265 -fno-math-errno) ;;
2266 -fno-common) ;;
2267 -fno-signed-zeros) ;;
2268 -fPIC) ;;
2269 -lz) echo zlib.lib ;;
2270 -lavifil32) echo vfw32.lib ;;
2271 -lavicap32) echo vfw32.lib user32.lib ;;
2272 -l*) echo ${flag#-l}.lib ;;
2273 *) echo $flag ;;
2274 esac
2275 done
2276 }
2277
2278 pgi_flags(){
2279 for flag; do
2280 case $flag in
2281 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2282 -fomit-frame-pointer) echo -Mnoframe ;;
2283 -g) echo -gopt ;;
2284 *) echo $flag ;;
2285 esac
2286 done
2287 }
2288
2289 suncc_flags(){
2290 for flag; do
2291 case $flag in
2292 -march=*|-mcpu=*)
2293 case "${flag#*=}" in
2294 native) echo -xtarget=native ;;
2295 v9|niagara) echo -xarch=sparc ;;
2296 ultrasparc) echo -xarch=sparcvis ;;
2297 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2298 i586|pentium) echo -xchip=pentium ;;
2299 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2300 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2301 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2302 pentium4*) echo -xtarget=pentium4 ;;
2303 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2304 *-sse3) echo -xarch=sse3 ;;
2305 core2) echo -xarch=ssse3 -xchip=core2 ;;
2306 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2307 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2308 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2309 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2310 k8|opteron|athlon64|athlon-fx)
2311 echo -xarch=sse2a ;;
2312 athlon*) echo -xarch=pentium_proa ;;
2313 esac
2314 ;;
2315 -std=c99) echo -xc99 ;;
2316 -fomit-frame-pointer) echo -xregs=frameptr ;;
2317 -fPIC) echo -KPIC -xcode=pic32 ;;
2318 -W*,*) echo $flag ;;
2319 -f*-*|-W*|-mimpure-text) ;;
2320 -shared) echo -G ;;
2321 *) echo $flag ;;
2322 esac
2323 done
2324 }
2325
2326 tms470_flags(){
2327 for flag; do
2328 case $flag in
2329 -march=*|-mcpu=*)
2330 case "${flag#*=}" in
2331 armv7-a|cortex-a*) echo -mv=7a8 ;;
2332 armv7-r|cortex-r*) echo -mv=7r4 ;;
2333 armv7-m|cortex-m*) echo -mv=7m3 ;;
2334 armv6*|arm11*) echo -mv=6 ;;
2335 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2336 echo -mv=5e ;;
2337 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2338 esac
2339 ;;
2340 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2341 -mfpu=vfp) echo --float_support=vfpv2 ;;
2342 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2343 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2344 -msoft-float) echo --float_support=vfplib ;;
2345 -O[0-3]|-mf=*) echo $flag ;;
2346 -g) echo -g -mn ;;
2347 -pds=*) echo $flag ;;
2348 -D*|-I*) echo $flag ;;
2349 --gcc|--abi=*) echo $flag ;;
2350 -me) echo $flag ;;
2351 esac
2352 done
2353 }
2354
2355 probe_cc(){
2356 pfx=$1
2357 _cc=$2
2358
2359 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2360 unset _ld_o _ldflags _ld_lib _ld_path
2361 unset _depflags _DEPCMD _DEPFLAGS
2362 _flags_filter=echo
2363
2364 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2365 _type=llvm_gcc
2366 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2367 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2368 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2369 _cflags_speed='-O3'
2370 _cflags_size='-Os'
2371 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2372 _type=gcc
2373 gcc_version=$($_cc --version | head -n1)
2374 gcc_basever=$($_cc -dumpversion)
2375 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2376 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2377 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2378 if ! $_cc -dumpversion | grep -q '^2\.'; then
2379 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2380 fi
2381 _cflags_speed='-O3'
2382 _cflags_size='-Os'
2383 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2384 _type=icc
2385 _ident=$($_cc --version | head -n1)
2386 _depflags='-MMD'
2387 _cflags_speed='-O3'
2388 _cflags_size='-Os'
2389 _cflags_noopt='-O1'
2390 elif $_cc -v 2>&1 | grep -q xlc; then
2391 _type=xlc
2392 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2393 _cflags_speed='-O5'
2394 _cflags_size='-O5 -qcompact'
2395 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2396 _type=ccc
2397 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2398 _DEPFLAGS='-M'
2399 _cflags_speed='-fast'
2400 _cflags_size='-O1'
2401 _flags_filter=ccc_flags
2402 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2403 test -d "$sysroot" || die "No valid sysroot specified."
2404 _type=armcc
2405 _ident=$($_cc --vsn | head -n1)
2406 armcc_conf="$PWD/armcc.conf"
2407 $_cc --arm_linux_configure \
2408 --arm_linux_config_file="$armcc_conf" \
2409 --configure_sysroot="$sysroot" \
2410 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2411 die "Error creating armcc configuration file."
2412 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2413 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2414 as_default="${cross_prefix}gcc"
2415 _depflags='-MMD'
2416 _cflags_speed='-O3'
2417 _cflags_size='-Os'
2418 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2419 _type=tms470
2420 _ident=$($_cc -version | head -n1 | tr -s ' ')
2421 _flags='--gcc --abi=eabi -me'
2422 _cc_e='-ppl -fe=$@'
2423 _cc_o='-fe=$@'
2424 _depflags='-ppa -ppd=$(@:.o=.d)'
2425 _cflags_speed='-O3 -mf=5'
2426 _cflags_size='-O3 -mf=2'
2427 _flags_filter=tms470_flags
2428 elif $_cc -v 2>&1 | grep -q clang; then
2429 _type=clang
2430 _ident=$($_cc --version | head -n1)
2431 _depflags='-MMD'
2432 _cflags_speed='-O3'
2433 _cflags_size='-Os'
2434 elif $_cc -V 2>&1 | grep -q Sun; then
2435 _type=suncc
2436 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2437 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2438 _DEPFLAGS='-xM1 -xc99'
2439 _ldflags='-std=c99'
2440 _cflags_speed='-O5'
2441 _cflags_size='-O5 -xspace'
2442 _flags_filter=suncc_flags
2443 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2444 _type=pathscale
2445 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2446 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2447 _cflags_speed='-O2'
2448 _cflags_size='-Os'
2449 _flags_filter='filter_out -Wdisabled-optimization'
2450 elif $_cc -v 2>&1 | grep -q Open64; then
2451 _type=open64
2452 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2453 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2454 _cflags_speed='-O2'
2455 _cflags_size='-Os'
2456 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2457 elif $_cc -V 2>&1 | grep -q Portland; then
2458 _type=pgi
2459 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2460 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2461 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2462 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2463 _cflags_noopt="-O1"
2464 _flags_filter=pgi_flags
2465 elif $_cc 2>&1 | grep -q Microsoft; then
2466 _type=msvc
2467 _ident=$($cc 2>&1 | head -n1)
2468 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2469 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2470 _cflags_speed="-O2"
2471 _cflags_size="-O1"
2472 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2473 if $_cc 2>&1 | grep -q Linker; then
2474 _ld_o='-out $@'
2475 else
2476 _ld_o='-Fe$@'
2477 fi
2478 _cc_o='-Fo $@'
2479 _cc_e='-P -Fi $@'
2480 _flags_filter=msvc_flags
2481 _ld_lib='lib%.a'
2482 _ld_path='-libpath:'
2483 _flags='-nologo'
2484 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2485 if [ $pfx = hostcc ]; then
2486 append _cflags -Dsnprintf=_snprintf
2487 fi
2488 fi
2489
2490 eval ${pfx}_type=\$_type
2491 eval ${pfx}_ident=\$_ident
2492 }
2493
2494 set_ccvars(){
2495 eval ${1}_C=\${_cc_c-\${${1}_C}}
2496 eval ${1}_E=\${_cc_e-\${${1}_E}}
2497 eval ${1}_O=\${_cc_o-\${${1}_O}}
2498
2499 if [ -n "$_depflags" ]; then
2500 eval ${1}_DEPFLAGS=\$_depflags
2501 else
2502 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2503 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2504 eval DEP${1}FLAGS=\$_flags
2505 fi
2506 }
2507
2508 probe_cc cc "$cc"
2509 cflags_filter=$_flags_filter
2510 cflags_speed=$_cflags_speed
2511 cflags_size=$_cflags_size
2512 cflags_noopt=$_cflags_noopt
2513 add_cflags $_flags $_cflags
2514 cc_ldflags=$_ldflags
2515 set_ccvars CC
2516
2517 probe_cc hostcc "$host_cc"
2518 host_cflags_filter=$_flags_filter
2519 add_host_cflags $_flags $_cflags
2520 set_ccvars HOSTCC
2521
2522 test -n "$cc_type" && enable $cc_type ||
2523 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2524
2525 : ${as_default:=$cc}
2526 : ${dep_cc_default:=$cc}
2527 : ${ld_default:=$cc}
2528 : ${host_ld_default:=$host_cc}
2529 set_default ar as dep_cc ld host_ld
2530
2531 probe_cc as "$as"
2532 asflags_filter=$_flags_filter
2533 add_asflags $_flags $_cflags
2534 set_ccvars AS
2535
2536 probe_cc ld "$ld"
2537 ldflags_filter=$_flags_filter
2538 add_ldflags $_flags $_ldflags
2539 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2540 LD_O=${_ld_o-$LD_O}
2541 LD_LIB=${_ld_lib-$LD_LIB}
2542 LD_PATH=${_ld_path-$LD_PATH}
2543
2544 probe_cc hostld "$host_ld"
2545 host_ldflags_filter=$_flags_filter
2546 add_host_ldflags $_flags $_ldflags
2547 HOSTLD_O=${_ld_o-$HOSTLD_O}
2548
2549 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2550 probe_cc depcc "$dep_cc"
2551 CCDEP=${_DEPCMD:-$DEPCMD}
2552 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2553 DEPCCFLAGS=$_flags
2554 fi
2555
2556 if $ar 2>&1 | grep -q Microsoft; then
2557 arflags="-nologo"
2558 ar_o='-out:$@'
2559 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2560 arflags="rq"
2561 ar_o='$@'
2562 else
2563 arflags="rc"
2564 ar_o='$@'
2565 fi
2566
2567 add_cflags $extra_cflags
2568 add_asflags $extra_cflags
2569
2570 if test -n "$sysroot"; then
2571 case "$cc_type" in
2572 gcc|llvm_gcc|clang)
2573 add_cppflags --sysroot="$sysroot"
2574 add_ldflags --sysroot="$sysroot"
2575 ;;
2576 tms470)
2577 add_cppflags -I"$sysinclude"
2578 add_ldflags --sysroot="$sysroot"
2579 ;;
2580 esac
2581 fi
2582
2583 if test "$cpu" = host; then
2584 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2585
2586 case "$cc_type" in
2587 gcc|llvm_gcc)
2588 check_native(){
2589 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2590 sed -n "/cc1.*$1=/{
2591 s/.*$1=\\([^ ]*\\).*/\\1/
2592 p
2593 q
2594 }" $TMPE
2595 }
2596 cpu=$(check_native -march || check_native -mcpu)
2597 ;;
2598 esac
2599
2600 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2601 fi
2602
2603 # Deal with common $arch aliases
2604 case "$arch" in
2605 aarch64|arm64)
2606 arch="aarch64"
2607 ;;
2608 arm*)
2609 arch="arm"
2610 ;;
2611 mips*|IP*)
2612 arch="mips"
2613 ;;
2614 parisc*|hppa*)
2615 arch="parisc"
2616 ;;
2617 "Power Macintosh"|ppc*|powerpc*)
2618 arch="ppc"
2619 ;;
2620 s390|s390x)
2621 arch="s390"
2622 ;;
2623 sh4|sh)
2624 arch="sh4"
2625 ;;
2626 sun4u|sparc*)
2627 arch="sparc"
2628 ;;
2629 tilegx|tile-gx)
2630 arch="tilegx"
2631 ;;
2632 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2633 arch="x86"
2634 ;;
2635 esac
2636
2637 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2638 enable $arch
2639
2640 # Add processor-specific flags
2641 if enabled aarch64; then
2642
2643 case $cpu in
2644 armv*)
2645 cpuflags="-march=$cpu"
2646 ;;
2647 *)
2648 cpuflags="-mcpu=$cpu"
2649 ;;
2650 esac
2651
2652 elif enabled alpha; then
2653
2654 cpuflags="-mcpu=$cpu"
2655
2656 elif enabled arm; then
2657
2658 check_arm_arch() {
2659 check_cpp_condition stddef.h \
2660 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2661 $cpuflags
2662 }
2663
2664 probe_arm_arch() {
2665 if check_arm_arch 4; then echo armv4;
2666 elif check_arm_arch 4T; then echo armv4t;
2667 elif check_arm_arch 5; then echo armv5;
2668 elif check_arm_arch 5E; then echo armv5e;
2669 elif check_arm_arch 5T; then echo armv5t;
2670 elif check_arm_arch 5TE; then echo armv5te;
2671 elif check_arm_arch 5TEJ; then echo armv5te;
2672 elif check_arm_arch 6; then echo armv6;
2673 elif check_arm_arch 6J; then echo armv6j;
2674 elif check_arm_arch 6K; then echo armv6k;
2675 elif check_arm_arch 6Z; then echo armv6z;
2676 elif check_arm_arch 6ZK; then echo armv6zk;
2677 elif check_arm_arch 6T2; then echo armv6t2;
2678 elif check_arm_arch 7; then echo armv7;
2679 elif check_arm_arch 7A 7_A; then echo armv7-a;
2680 elif check_arm_arch 7R 7_R; then echo armv7-r;
2681 elif check_arm_arch 7M 7_M; then echo armv7-m;
2682 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2683 elif check_arm_arch 8A 8_A; then echo armv8-a;
2684 fi
2685 }
2686
2687 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2688
2689 case $cpu in
2690 armv*)
2691 cpuflags="-march=$cpu"
2692 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2693 ;;
2694 *)
2695 cpuflags="-mcpu=$cpu"
2696 case $cpu in
2697 cortex-a*) subarch=armv7a ;;
2698 cortex-r*) subarch=armv7r ;;
2699 cortex-m*) enable thumb; subarch=armv7m ;;
2700 arm11*) subarch=armv6 ;;
2701 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2702 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2703 *) subarch=$(probe_arm_arch) ;;
2704 esac
2705 ;;
2706 esac
2707
2708 case "$subarch" in
2709 armv5t*) enable fast_clz ;;
2710 armv[6-8]*) enable fast_clz fast_unaligned ;;
2711 esac
2712
2713 elif enabled avr32; then
2714
2715 case $cpu in
2716 ap7[02]0[0-2])
2717 subarch="avr32_ap"
2718 cpuflags="-mpart=$cpu"
2719 ;;
2720 ap)
2721 subarch="avr32_ap"
2722 cpuflags="-march=$cpu"
2723 ;;
2724 uc3[ab]*)
2725 subarch="avr32_uc"
2726 cpuflags="-mcpu=$cpu"
2727 ;;
2728 uc)
2729 subarch="avr32_uc"
2730 cpuflags="-march=$cpu"
2731 ;;
2732 esac
2733
2734 elif enabled bfin; then
2735
2736 cpuflags="-mcpu=$cpu"
2737
2738 elif enabled mips; then
2739
2740 cpuflags="-march=$cpu"
2741
2742 elif enabled ppc; then
2743
2744 case $(tolower $cpu) in
2745 601|ppc601|powerpc601)
2746 cpuflags="-mcpu=601"
2747 disable altivec
2748 ;;
2749 603*|ppc603*|powerpc603*)
2750 cpuflags="-mcpu=603"
2751 disable altivec
2752 ;;
2753 604*|ppc604*|powerpc604*)
2754 cpuflags="-mcpu=604"
2755 disable altivec
2756 ;;
2757 g3|75*|ppc75*|powerpc75*)
2758 cpuflags="-mcpu=750"
2759 disable altivec
2760 ;;
2761 g4|745*|ppc745*|powerpc745*)
2762 cpuflags="-mcpu=7450"
2763 ;;
2764 74*|ppc74*|powerpc74*)
2765 cpuflags="-mcpu=7400"
2766 ;;
2767 g5|970|ppc970|powerpc970)
2768 cpuflags="-mcpu=970"
2769 ;;
2770 power[3-7]*)
2771 cpuflags="-mcpu=$cpu"
2772 ;;
2773 cell)
2774 cpuflags="-mcpu=cell"
2775 enable ldbrx
2776 ;;
2777 e500mc)
2778 cpuflags="-mcpu=e500mc"
2779 disable altivec
2780 ;;
2781 e500v2)
2782 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2783 disable altivec
2784 ;;
2785 e500)
2786 cpuflags="-mcpu=8540 -mhard-float"
2787 disable altivec
2788 ;;
2789 esac
2790
2791 elif enabled sparc; then
2792
2793 case $cpu in
2794 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2795 cpuflags="-mcpu=$cpu"
2796 disable vis
2797 ;;
2798 ultrasparc*|niagara[234])
2799 cpuflags="-mcpu=$cpu"
2800 ;;
2801 esac
2802
2803 elif enabled x86; then
2804
2805 case $cpu in
2806 i[345]86|pentium)
2807 cpuflags="-march=$cpu"
2808 disable mmx
2809 ;;
2810 # targets that do NOT support conditional mov (cmov)
2811 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2812 cpuflags="-march=$cpu"
2813 disable cmov
2814 ;;
2815 # targets that do support conditional mov (cmov)
2816 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2817 cpuflags="-march=$cpu"
2818 enable cmov
2819 enable fast_cmov
2820 ;;
2821 # targets that do support conditional mov but on which it's slow
2822 pentium4|pentium4m|prescott|nocona)
2823 cpuflags="-march=$cpu"
2824 enable cmov
2825 disable fast_cmov
2826 ;;
2827 esac
2828
2829 fi
2830
2831 if [ "$cpu" != generic ]; then
2832 add_cflags $cpuflags
2833 add_asflags $cpuflags
2834 fi
2835
2836 # compiler sanity check
2837 check_exec <<EOF
2838 int main(void){ return 0; }
2839 EOF
2840 if test "$?" != 0; then
2841 echo "$cc is unable to create an executable file."
2842 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2843 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2844 echo "Only do this if you know what cross compiling means."
2845 fi
2846 die "C compiler test failed."
2847 fi
2848
2849 add_cppflags -D_ISOC99_SOURCE
2850 check_cflags -std=c99
2851 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2852 #include <stdlib.h>
2853 EOF
2854 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2855 #include <stdlib.h>
2856 EOF
2857
2858 check_host_cflags -std=c99
2859 check_host_cflags -Wall
2860
2861 check_64bit(){
2862 arch32=$1
2863 arch64=$2
2864 expr=$3
2865 check_code cc "" "int test[2*($expr) - 1]" &&
2866 subarch=$arch64 || subarch=$arch32
2867 }
2868
2869 case "$arch" in
2870 aarch64|alpha|ia64)
2871 spic=$shared
2872 ;;
2873 mips)
2874 check_64bit mips mips64 '_MIPS_SIM > 1'
2875 spic=$shared
2876 ;;
2877 parisc)
2878 check_64bit parisc parisc64 'sizeof(void *) > 4'
2879 spic=$shared
2880 ;;
2881 ppc)
2882 check_64bit ppc ppc64 'sizeof(void *) > 4'
2883 spic=$shared
2884 ;;
2885 sparc)
2886 check_64bit sparc sparc64 'sizeof(void *) > 4'
2887 spic=$shared
2888 ;;
2889 x86)
2890 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
2891 if test "$subarch" = "x86_64"; then
2892 spic=$shared
2893 fi
2894 ;;
2895 esac
2896
2897 enable $subarch
2898 enabled spic && enable pic
2899
2900 # OS specific
2901 case $target_os in
2902 haiku)
2903 prefix_default="/boot/common"
2904 network_extralibs="-lnetwork"
2905 host_libs=
2906 ;;
2907 sunos)
2908 AVSERVERLDFLAGS=""
2909 SHFLAGS='-shared -Wl,-h,$$(@F)'
2910 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2911 network_extralibs="-lsocket -lnsl"
2912 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2913 # When using suncc to build, the Solaris linker will mark
2914 # an executable with each instruction set encountered by
2915 # the Solaris assembler. As our libraries contain their own
2916 # guards for processor-specific code, instead suppress
2917 # generation of the HWCAPS ELF section on Solaris x86 only.
2918 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2919 nm_default='nm -P -g'
2920 ;;
2921 netbsd)
2922 disable symver
2923 oss_indev_extralibs="-lossaudio"
2924 oss_outdev_extralibs="-lossaudio"
2925 ;;
2926 openbsd|bitrig)
2927 disable symver
2928 SHFLAGS='-shared'
2929 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
2930 SLIB_INSTALL_LINKS=
2931 oss_indev_extralibs="-lossaudio"
2932 oss_outdev_extralibs="-lossaudio"
2933 ;;
2934 dragonfly)
2935 disable symver
2936 ;;
2937 freebsd)
2938 ;;
2939 bsd/os)
2940 add_extralibs -lpoll -lgnugetopt
2941 ;;
2942 darwin)
2943 gas="gas-preprocessor.pl $cc"
2944 enabled ppc && add_asflags -force_cpusubtype_ALL
2945 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2946 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2947 add_ldflags -Wl,-dynamic,-search_paths_first
2948 SLIBSUF=".dylib"
2949 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2950 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2951 AVSERVERLDFLAGS=-Wl,-bind_at_load
2952 objformat="macho"
2953 enabled x86_64 && objformat="macho64"
2954 enabled_any pic shared ||
2955 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2956 ;;
2957 mingw32*)
2958 if test $target_os = "mingw32ce"; then
2959 disable network
2960 else
2961 target_os=mingw32
2962 fi
2963 LIBTARGET=i386
2964 if enabled x86_64; then
2965 LIBTARGET="i386:x86-64"
2966 elif enabled arm; then
2967 LIBTARGET=arm-wince
2968 fi
2969 shlibdir_default="$bindir_default"
2970 SLIBPREF=""
2971 SLIBSUF=".dll"
2972 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2973 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2974 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2975 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2976 SLIB_INSTALL_LINKS=
2977 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2978 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2979 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2980 objformat="win32"
2981 dlltool="${cross_prefix}dlltool"
2982 ranlib=:
2983 enable dos_paths
2984 ;;
2985 win32|win64)
2986 if enabled shared; then
2987 # Link to the import library instead of the normal static library
2988 # for shared libs.
2989 LD_LIB='%.lib'
2990 # Cannot build shared and static libraries at the same time with
2991 # MSVC.
2992 disable static
2993 fi
2994 shlibdir_default="$bindir_default"
2995 SLIBPREF=""
2996 SLIBSUF=".dll"
2997 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2998 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2999 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3000 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3001 SLIB_INSTALL_LINKS=
3002 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3003 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3004 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3005 objformat="win32"
3006 ranlib=:
3007 enable dos_paths
3008 ;;
3009 cygwin*)
3010 target_os=cygwin
3011 shlibdir_default="$bindir_default"
3012 SLIBPREF="cyg"
3013 SLIBSUF=".dll"
3014 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3015 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3016 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3017 SLIB_INSTALL_LINKS=
3018 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3019 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3020 objformat="win32"
3021 enable dos_paths
3022 ;;
3023 *-dos|freedos|opendos)
3024 network_extralibs="-lsocket"
3025 objformat="coff"
3026 enable dos_paths
3027 add_cppflags -U__STRICT_ANSI__
3028 ;;
3029 linux)
3030 enable dv1394
3031 ;;
3032 irix*)
3033 target_os=irix
3034 ranlib="echo ignoring ranlib"
3035 ;;
3036 os/2*)
3037 ln_s="cp -f"
3038 objformat="aout"
3039 add_cppflags -D_GNU_SOURCE
3040 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3041 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3042 AVSERVERLDFLAGS=""
3043 LIBSUF="_s.a"
3044 SLIBPREF=""
3045 SLIBSUF=".dll"
3046 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3047 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3048 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3049 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3050 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3051 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3052 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3053 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3054 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3055 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3056 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3057 enable dos_paths
3058 ;;
3059 gnu/kfreebsd)
3060 add_cppflags -D_BSD_SOURCE
3061 ;;
3062 gnu)
3063 ;;
3064 qnx)
3065 add_cppflags -D_QNX_SOURCE
3066 network_extralibs="-lsocket"
3067 ;;
3068 symbian)
3069 SLIBSUF=".dll"
3070 enable dos_paths
3071 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3072 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3073 add_ldflags -Wl,--target1-abs,--no-undefined \
3074 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3075 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3076 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3077 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3078 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3079 ;;
3080 osf1)
3081 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3082 AVSERVERLDFLAGS=
3083 ;;
3084 minix)
3085 ;;
3086 plan9)
3087 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3088 -D_REENTRANT_SOURCE \
3089 -D_RESEARCH_SOURCE \
3090 -DFD_SETSIZE=96 \
3091 -DHAVE_SOCK_OPTS
3092 add_compat strtod.o strtod=avpriv_strtod
3093 network_extralibs='-lbsd'
3094 exeobjs=compat/plan9/main.o
3095 disable avserver
3096 cp_f='cp'
3097 ;;
3098 none)
3099 ;;
3100 *)
3101 die "Unknown OS '$target_os'."
3102 ;;
3103 esac
3104
3105 # determine libc flavour
3106
3107 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3108 if check_cpp_condition features.h "defined __UCLIBC__"; then
3109 libc_type=uclibc
3110 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3111 elif check_cpp_condition features.h "defined __GLIBC__"; then
3112 libc_type=glibc
3113 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3114 # MinGW headers can be installed on Cygwin, so check for newlib first.
3115 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3116 libc_type=newlib
3117 add_cppflags -U__STRICT_ANSI__
3118 elif check_header _mingw.h; then
3119 libc_type=mingw
3120 check_cpp_condition _mingw.h \
3121 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3122 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3123 die "ERROR: MinGW runtime version must be >= 3.15."
3124 add_cppflags -U__STRICT_ANSI__
3125 elif check_func_headers stdlib.h _get_doserrno; then
3126 libc_type=msvcrt
3127 add_compat strtod.o strtod=avpriv_strtod
3128 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3129 _snprintf=avpriv_snprintf \
3130 vsnprintf=avpriv_vsnprintf
3131 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3132 libc_type=klibc
3133 fi
3134
3135 test -n "$libc_type" && enable $libc_type
3136
3137 # hacks for compiler/libc/os combinations
3138
3139 if enabled_all tms470 glibc; then
3140 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3141 add_cppflags -D__USER_LABEL_PREFIX__=
3142 add_cppflags -D__builtin_memset=memset
3143 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3144 add_cflags -pds=48 # incompatible redefinition of macro
3145 fi
3146
3147 if enabled_all ccc glibc; then
3148 add_ldflags -Wl,-z,now # calls to libots crash without this
3149 fi
3150
3151 esc(){
3152 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3153 }
3154
3155 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3156
3157 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3158
3159 set_default $PATHS_LIST
3160 set_default nm
3161
3162 # we need to build at least one lib type
3163 if ! enabled_any static shared; then
3164 cat <<EOF
3165 At least one library type must be built.
3166 Specify --enable-static to build the static libraries or --enable-shared to
3167 build the shared libraries as well. To only build the shared libraries specify
3168 --disable-static in addition to --enable-shared.
3169 EOF
3170 exit 1;
3171 fi
3172
3173 die_license_disabled() {
3174 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3175 }
3176
3177 die_license_disabled gpl libcdio
3178 die_license_disabled gpl libx264
3179 die_license_disabled gpl libxavs
3180 die_license_disabled gpl libxvid
3181 die_license_disabled gpl x11grab
3182
3183 die_license_disabled nonfree libfaac
3184 die_license_disabled nonfree libfdk_aac
3185 die_license_disabled nonfree openssl
3186
3187 die_license_disabled version3 libopencore_amrnb
3188 die_license_disabled version3 libopencore_amrwb
3189 die_license_disabled version3 libvo_aacenc
3190 die_license_disabled version3 libvo_amrwbenc
3191
3192 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3193
3194 disabled optimizations || check_cflags -fomit-frame-pointer
3195
3196 enable_pic() {
3197 enable pic
3198 add_cppflags -DPIC
3199 add_cflags -fPIC
3200 add_asflags -fPIC
3201 }
3202
3203 enabled pic && enable_pic
3204
3205 check_cc <<EOF || die "Symbol mangling check failed."
3206 int ff_extern;
3207 EOF
3208 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3209 extern_prefix=${sym%%ff_extern*}
3210
3211 check_cc <<EOF && enable_weak inline_asm
3212 void foo(void) { __asm__ volatile ("" ::); }
3213 EOF
3214
3215 _restrict=
3216 for restrict_keyword in restrict __restrict__ __restrict; do
3217 check_cc <<EOF && _restrict=$restrict_keyword && break
3218 void foo(char * $restrict_keyword p);
3219 EOF
3220 done
3221
3222 check_cc <<EOF && enable attribute_packed
3223 struct { int x; } __attribute__((packed)) x;
3224 EOF
3225
3226 check_cc <<EOF && enable attribute_may_alias
3227 union { int x; } __attribute__((may_alias)) x;
3228 EOF
3229
3230 check_cc <<EOF || die "endian test failed"
3231 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3232 EOF
3233 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3234
3235 if enabled alpha; then
3236
3237 check_cflags -mieee
3238
3239 elif enabled arm; then
3240
3241 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3242 enabled thumb && check_cflags -mthumb || check_cflags -marm
3243 nogas=die
3244
3245 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3246 enable vfp_args
3247 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3248 case "${cross_prefix:-$cc}" in
3249 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3250 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3251 __asm__ (".eabi_attribute 28, 1");
3252 int main(void) { return 0; }
3253 EOF
3254 esac
3255 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3256 fi
3257
3258 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3259 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3260 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3261 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3262 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3263 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3264
3265 [ $target_os = linux ] ||
3266 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3267 $ARCH_EXT_LIST_ARM
3268
3269 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3270 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3271
3272 enabled_all armv6t2 shared !pic && enable_pic
3273
3274 elif enabled mips; then
3275
3276 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3277
3278 elif enabled parisc; then
3279
3280 if enabled gcc; then
3281 case $($cc -dumpversion) in
3282 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3283 esac
3284 fi
3285
3286 elif enabled ppc; then
3287
3288 enable local_aligned_8 local_aligned_16
3289
3290 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3291 check_inline_asm ibm_asm '"add 0, 0, 0"'
3292 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3293 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3294
3295 # AltiVec flags: The FSF version of GCC differs from the Apple version
3296 if enabled altivec; then
3297 nogas=warn
3298 check_cflags -maltivec -mabi=altivec &&
3299 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3300 check_cflags -faltivec
3301
3302 # check if our compiler supports Motorola AltiVec C API
3303 check_cc <<EOF || disable altivec
3304 $inc_altivec_h
3305 int main(void) {
3306 vector signed int v1 = (vector signed int) { 0 };
3307 vector signed int v2 = (vector signed int) { 1 };
3308 v1 = vec_add(v1, v2);
3309 return 0;
3310 }
3311 EOF
3312
3313 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3314 fi
3315
3316 elif enabled sparc; then
3317
3318 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3319
3320 elif enabled x86; then
3321
3322 check_builtin rdtsc intrin.h "__rdtsc()"
3323 check_builtin mm_empty mmintrin.h "_mm_empty()"
3324
3325 enable local_aligned_8 local_aligned_16
3326
3327 # check whether EBP is available on x86
3328 # As 'i' is stored on the stack, this program will crash
3329 # if the base pointer is used to access it because the
3330 # base pointer is cleared in the inline assembly code.
3331 check_exec_crash <<EOF && enable ebp_available
3332 volatile int i=0;
3333 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3334 return i;
3335 EOF
3336
3337 # check whether EBX is available on x86
3338 check_inline_asm ebx_available '""::"b"(0)' &&
3339 check_inline_asm ebx_available '"":::"%ebx"'
3340
3341 # check whether xmm clobbers are supported
3342 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3343
3344 # check whether binutils is new enough to compile SSSE3/MMXEXT
3345 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3346 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3347
3348 if ! disabled_any asm mmx yasm; then
3349 if check_cmd $yasmexe --version; then
3350 enabled x86_64 && yasm_extra="-m amd64"
3351 yasm_debug="-g dwarf2"
3352 elif check_cmd nasm -v; then
3353 yasmexe=nasm
3354 yasm_debug="-g -F dwarf"
3355 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3356 fi
3357
3358 YASMFLAGS="-f $objformat $yasm_extra"
3359 enabled pic && append YASMFLAGS "-DPIC"
3360 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3361 case "$objformat" in
3362 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3363 esac
3364
3365 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3366 die "yasm not found, use --disable-yasm for a crippled build"
3367 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3368 check_yasm "CPU amdnop" && enable cpunop
3369 fi
3370
3371 case "$cpu" in
3372 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3373 disable fast_clz
3374 ;;
3375 esac
3376
3377 fi
3378
3379 if enabled asm; then
3380 as=${gas:=$as}
3381 check_as <<EOF && enable gnu_as || \
3382 $nogas "GNU assembler not found, install gas-preprocessor"
3383 .macro m n
3384 \n: .int 0
3385 .endm
3386 m x
3387 EOF
3388 fi
3389
3390 check_ldflags -Wl,--as-needed
3391
3392 if check_func dlopen; then
3393 ldl=
3394 elif check_func dlopen -ldl; then
3395 ldl=-ldl
3396 fi
3397
3398 if ! disabled network; then
3399 check_type "sys/types.h sys/socket.h" socklen_t
3400 check_type netdb.h "struct addrinfo"
3401 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3402 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3403 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3404 check_type netinet/in.h "struct sockaddr_in6"
3405 check_type poll.h "struct pollfd"
3406 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3407 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3408 check_type netinet/sctp.h "struct sctp_event_subscribe"
3409 check_func getaddrinfo $network_extralibs
3410 check_func getservbyport $network_extralibs
3411 # Prefer arpa/inet.h over winsock2
3412 if check_header arpa/inet.h ; then
3413 check_func closesocket
3414 elif check_header winsock2.h ; then
3415 check_func_headers winsock2.h closesocket -lws2 &&
3416 network_extralibs="-lws2" ||
3417 { check_func_headers winsock2.h closesocket -lws2_32 &&
3418 network_extralibs="-lws2_32"; }
3419 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3420 check_type ws2tcpip.h socklen_t
3421 check_type ws2tcpip.h "struct addrinfo"
3422 check_type ws2tcpip.h "struct group_source_req"
3423 check_type ws2tcpip.h "struct ip_mreq_source"
3424 check_type ws2tcpip.h "struct ipv6_mreq"
3425 check_type winsock2.h "struct pollfd"
3426 check_type ws2tcpip.h "struct sockaddr_in6"
3427 check_type ws2tcpip.h "struct sockaddr_storage"
3428 check_struct winsock2.h "struct sockaddr" sa_len
3429 else
3430 disable network
3431 fi
3432 fi
3433
3434 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3435 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3436
3437 check_func fcntl
3438 check_func fork
3439 check_func gethrtime
3440 check_func getopt
3441 check_func getrusage
3442 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3443 check_func gettimeofday
3444 check_func inet_aton $network_extralibs
3445 check_func isatty
3446 check_func localtime_r
3447 check_func ${malloc_prefix}memalign && enable memalign
3448 check_func mkstemp
3449 check_func mmap
3450 check_func mprotect
3451 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3452 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3453 check_func setrlimit
3454 check_func strerror_r
3455 check_func strptime
3456 check_func strtok_r
3457 check_func sched_getaffinity
3458 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3459 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3460 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3461 check_func sysconf
3462 check_func sysctl
3463 check_func usleep
3464 check_func_headers io.h setmode
3465 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3466 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3467 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3468 check_func_headers windows.h GetProcessAffinityMask
3469 check_func_headers windows.h GetProcessTimes
3470 check_func_headers windows.h GetSystemTimeAsFileTime
3471 check_func_headers windows.h MapViewOfFile
3472 check_func_headers windows.h SetConsoleTextAttribute
3473 check_func_headers windows.h Sleep
3474 check_func_headers windows.h VirtualAlloc
3475
3476 check_header direct.h
3477 check_header dlfcn.h
3478 check_header dxva.h
3479 check_header dxva2api.h
3480 check_header io.h
3481 check_header malloc.h
3482 check_header poll.h
3483 check_header sys/mman.h
3484 check_header sys/param.h
3485 check_header sys/resource.h
3486 check_header sys/select.h
3487 check_header sys/time.h
3488 check_header unistd.h
3489 check_header vdpau/vdpau.h
3490 check_header vdpau/vdpau_x11.h
3491 check_header VideoDecodeAcceleration/VDADecoder.h
3492 check_header windows.h
3493 check_header X11/extensions/XvMClib.h
3494
3495 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3496 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3497
3498 if ! disabled w32threads && ! enabled pthreads; then
3499 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3500 fi
3501
3502 # check for some common methods of building with pthread support
3503 # do this before the optional library checks as some of them require pthreads
3504 if ! disabled pthreads && ! enabled w32threads; then
3505 enable pthreads
3506 if check_func pthread_create; then
3507 :
3508 elif check_func pthread_create -pthread; then
3509 add_cflags -pthread
3510 add_extralibs -pthread
3511 elif check_func pthread_create -pthreads; then
3512 add_cflags -pthreads
3513 add_extralibs -pthreads
3514 elif check_func pthread_create -lpthreadGC2; then
3515 add_extralibs -lpthreadGC2
3516 elif ! check_lib pthread.h pthread_create -lpthread; then
3517 disable pthreads
3518 fi
3519 fi
3520
3521 for thread in $THREADS_LIST; do
3522 if enabled $thread; then
3523 test -n "$thread_type" &&
3524 die "ERROR: Only one thread type must be selected." ||
3525 thread_type="$thread"
3526 fi
3527 done
3528
3529 check_lib math.h sin -lm && LIBM="-lm"
3530 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3531
3532 atan2f_args=2
3533 ldexpf_args=2
3534 powf_args=2
3535
3536 for func in $MATH_FUNCS; do
3537 eval check_mathfunc $func \${${func}_args:-1}
3538 done
3539
3540 # these are off by default, so fail if requested and not available
3541 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3542 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3543 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3544 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3545 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3546 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3547 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3548 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3549 done || die "ERROR: libgsm not found"; }
3550 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3551 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3552 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3553 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3554 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3555 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3556 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3557 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3558 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3559 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3560 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3561 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3562 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3563 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3564 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3565 enabled libvpx && {
3566 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3567 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3568 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3569 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3570 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3571 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3572 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3573 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3574 die "ERROR: libx264 version must be >= 0.118."; }
3575 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3576 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3577 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3578 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3579 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3580 die "ERROR: openssl not found"; }
3581
3582 if enabled gnutls; then
3583 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3584 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3585 fi
3586
3587 # libdc1394 check
3588 if enabled libdc1394; then
3589 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3590 enable libdc1394_2; } ||
3591 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3592 enable libdc1394_1; } ||
3593 die "ERROR: No version of libdc1394 found "
3594 fi
3595
3596 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3597 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3598 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3599 enable sdl
3600 fi
3601
3602 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3603
3604 check_header linux/fb.h
3605 check_header linux/videodev2.h
3606 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3607
3608 check_header sys/videoio.h
3609
3610 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3611 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3612 # w32api 3.12 had it defined wrong
3613 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3614
3615 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3616 { check_header dev/bktr/ioctl_meteor.h &&
3617 check_header dev/bktr/ioctl_bt848.h; } ||
3618 { check_header machine/ioctl_meteor.h &&
3619 check_header machine/ioctl_bt848.h; } ||
3620 { check_header dev/video/meteor/ioctl_meteor.h &&
3621 check_header dev/video/bktr/ioctl_bt848.h; } ||
3622 check_header dev/ic/bt8xx.h
3623
3624 check_header sndio.h
3625 check_header sys/soundcard.h
3626 check_header soundcard.h
3627
3628 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3629
3630 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3631 check_func jack_port_get_latency_range -ljack
3632
3633 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3634
3635 if enabled libcdio; then
3636 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
3637 fi
3638
3639 enabled x11grab &&
3640 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3641 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3642 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3643
3644 enabled vdpau &&
3645 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3646 disable vdpau
3647
3648 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3649
3650 # add some useful compiler flags if supported
3651 check_cflags -Wdeclaration-after-statement
3652 check_cflags -Wall
3653 check_cflags -Wno-parentheses
3654 check_cflags -Wno-switch
3655 check_cflags -Wno-format-zero-length
3656 check_cflags -Wdisabled-optimization
3657 check_cflags -Wpointer-arith
3658 check_cflags -Wredundant-decls
3659 check_cflags -Wno-pointer-sign
3660 check_cflags -Wcast-qual
3661 check_cflags -Wwrite-strings
3662 check_cflags -Wtype-limits
3663 check_cflags -Wundef
3664 check_cflags -Wmissing-prototypes
3665 check_cflags -Wstrict-prototypes
3666 enabled extra_warnings && check_cflags -Winline
3667
3668 # add some linker flags
3669 check_ldflags -Wl,--warn-common
3670 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3671 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3672
3673 enabled xmm_clobber_test &&
3674 check_ldflags -Wl,--wrap,avcodec_open2 \
3675 -Wl,--wrap,avcodec_decode_audio4 \
3676 -Wl,--wrap,avcodec_decode_video2 \
3677 -Wl,--wrap,avcodec_decode_subtitle2 \
3678 -Wl,--wrap,avcodec_encode_audio2 \
3679 -Wl,--wrap,avcodec_encode_video \
3680 -Wl,--wrap,avcodec_encode_subtitle \
3681 -Wl,--wrap,sws_scale ||
3682 disable xmm_clobber_test
3683
3684 echo "X{};" > $TMPV
3685 if test_ldflags -Wl,--version-script,$TMPV; then
3686 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3687 check_cc <<EOF && enable symver_asm_label
3688 void ff_foo(void) __asm__ ("av_foo@VERSION");
3689 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3690 EOF
3691 check_cc <<EOF && enable symver_gnu_asm
3692