compat: wrap math.h to avoid AIX-specific clashes
[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-error-resilience disable error resilience code
126 --disable-lsp disable LSP code
127 --disable-lzo disable LZO decoder code
128 --disable-mdct disable MDCT code
129 --disable-rdft disable RDFT code
130 --disable-fft disable FFT code
131
132 Hardware accelerators:
133 --enable-dxva2 enable DXVA2 code
134 --enable-vaapi enable VAAPI code
135 --enable-vda enable VDA code
136 --enable-vdpau enable VDPAU code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176 --enable-avisynth enable reading of AVISynth script files [no]
177 --enable-bzlib enable bzlib [autodetect]
178 --enable-frei0r enable frei0r video filtering
179 --enable-gnutls enable gnutls [no]
180 --enable-libcdio enable audio CD grabbing with libcdio
181 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
182 and libraw1394 [no]
183 --enable-libfaac enable AAC encoding via libfaac [no]
184 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
185 --enable-libfreetype enable libfreetype [no]
186 --enable-libgsm enable GSM de/encoding via libgsm [no]
187 --enable-libilbc enable iLBC de/encoding via libilbc [no]
188 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
189 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
190 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
191 --enable-libopencv enable video filtering via libopencv [no]
192 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
193 --enable-libopus enable Opus decoding via libopus [no]
194 --enable-libpulse enable Pulseaudio input via libpulse [no]
195 --enable-librtmp enable RTMP[E] support via librtmp [no]
196 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
197 --enable-libspeex enable Speex de/encoding via libspeex [no]
198 --enable-libtheora enable Theora encoding via libtheora [no]
199 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
200 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
201 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
202 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
203 --enable-libwavpack enable wavpack encoding via libwavpack [no]
204 --enable-libx264 enable H.264 encoding via x264 [no]
205 --enable-libxavs enable AVS encoding via xavs [no]
206 --enable-libxvid enable Xvid encoding via xvidcore,
207 native MPEG-4/Xvid encoder exists [no]
208 --enable-openssl enable openssl [no]
209 --enable-x11grab enable X11 grabbing [no]
210 --enable-zlib enable zlib [autodetect]
211
212 Advanced options (experts only):
213 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
214 --enable-cross-compile assume a cross-compiler is used
215 --sysroot=PATH root of cross-build tree
216 --sysinclude=PATH location of cross-build system headers
217 --target-os=OS compiler targets OS [$target_os]
218 --target-exec=CMD command to run executables on target
219 --target-path=DIR path to view of build directory on target
220 --target-samples=DIR path to samples directory on target
221 --toolchain=NAME set tool defaults according to NAME
222 --nm=NM use nm tool
223 --ar=AR use archive tool AR [$ar_default]
224 --as=AS use assembler AS [$as_default]
225 --cc=CC use C compiler CC [$cc_default]
226 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
227 --ld=LD use linker LD
228 --host-cc=HOSTCC use host C compiler HOSTCC
229 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
230 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
231 --host-ld=HOSTLD use host linker HOSTLD
232 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
233 --host-libs=HLIBS use libs HLIBS when linking for host
234 --host-os=OS compiler host OS [$target_os]
235 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
236 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
237 --extra-libs=ELIBS add ELIBS [$ELIBS]
238 --extra-version=STRING version string suffix []
239 --optflags=OPTFLAGS override optimization-related compiler flags
240 --build-suffix=SUFFIX library name suffix []
241 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
242 --arch=ARCH select architecture [$arch]
243 --cpu=CPU select the minimum required CPU (affects
244 instruction selection, may crash on older CPUs)
245 --enable-pic build position-independent code
246 --enable-sram allow use of on-chip SRAM
247 --enable-thumb compile for Thumb instruction set
248 --disable-symver disable symbol versioning
249 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
250 --disable-safe-bitstream-reader
251 disable buffer boundary checking in bitreaders
252 (faster, but may crash)
253 --enable-memalign-hack emulate memalign, interferes with memory debuggers
254 --enable-lto use link-time optimization
255
256 Optimization options (experts only):
257 --disable-asm disable all assembler optimizations
258 --disable-altivec disable AltiVec optimizations
259 --disable-amd3dnow disable 3DNow! optimizations
260 --disable-amd3dnowext disable 3DNow! extended optimizations
261 --disable-mmx disable MMX optimizations
262 --disable-mmxext disable MMXEXT optimizations
263 --disable-sse disable SSE optimizations
264 --disable-sse2 disable SSE2 optimizations
265 --disable-sse3 disable SSE3 optimizations
266 --disable-ssse3 disable SSSE3 optimizations
267 --disable-sse4 disable SSE4 optimizations
268 --disable-sse42 disable SSE4.2 optimizations
269 --disable-avx disable AVX optimizations
270 --disable-fma4 disable FMA4 optimizations
271 --disable-armv5te disable armv5te optimizations
272 --disable-armv6 disable armv6 optimizations
273 --disable-armv6t2 disable armv6t2 optimizations
274 --disable-vfp disable VFP optimizations
275 --disable-neon disable NEON optimizations
276 --disable-vis disable VIS optimizations
277 --disable-inline-asm disable use of inline assembler
278 --disable-yasm disable use of yasm assembler
279
280 Developer options (useful when working on Libav itself):
281 --disable-debug disable debugging symbols
282 --enable-debug=LEVEL set the debug level [$debuglevel]
283 --disable-optimizations disable compiler optimizations
284 --enable-extra-warnings enable more compiler warnings
285 --samples=PATH location of test samples for FATE, if not set use
286 \$LIBAV_SAMPLES at make invocation time.
287 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
288 should be used only for debugging purposes)
289 --enable-random randomly enable/disable components
290 --disable-random
291 --enable-random=LIST randomly enable/disable specific components or
292 --disable-random=LIST component groups. LIST is a comma-separated list
293 of NAME[:PROB] entries where NAME is a component
294 (group) and PROB the probability associated with
295 NAME (default 0.5).
296 --random-seed=VALUE seed value for --enable/disable-random
297
298 NOTE: Object files are built at the place where configure is launched.
299 EOF
300 exit 0
301 }
302
303 quotes='""'
304
305 log(){
306 echo "$@" >> $logfile
307 }
308
309 log_file(){
310 log BEGIN $1
311 pr -n -t $1 >> $logfile
312 log END $1
313 }
314
315 echolog(){
316 log "$@"
317 echo "$@"
318 }
319
320 warn(){
321 log "WARNING: $*"
322 WARNINGS="${WARNINGS}WARNING: $*\n"
323 }
324
325 die(){
326 echolog "$@"
327 cat <<EOF
328
329 If you think configure made a mistake, make sure you are using the latest
330 version from Git. If the latest version fails, report the problem to the
331 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
332 EOF
333 if disabled logging; then
334 cat <<EOF
335 Rerun configure with logging enabled (do not use --disable-logging), and
336 include the log this produces with your report.
337 EOF
338 else
339 cat <<EOF
340 Include the log file "$logfile" produced by configure as this will help
341 solving the problem.
342 EOF
343 fi
344 exit 1
345 }
346
347 # Avoid locale weirdness, besides we really just want to translate ASCII.
348 toupper(){
349 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
350 }
351
352 tolower(){
353 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
354 }
355
356 c_escape(){
357 echo "$*" | sed 's/["\\]/\\\0/g'
358 }
359
360 sh_quote(){
361 v=$(echo "$1" | sed "s/'/'\\\\''/g")
362 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
363 echo "$v"
364 }
365
366 cleanws(){
367 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
368 }
369
370 filter(){
371 pat=$1
372 shift
373 for v; do
374 eval "case $v in $pat) echo $v ;; esac"
375 done
376 }
377
378 filter_out(){
379 pat=$1
380 shift
381 for v; do
382 eval "case $v in $pat) ;; *) echo $v ;; esac"
383 done
384 }
385
386 map(){
387 m=$1
388 shift
389 for v; do eval $m; done
390 }
391
392 add_suffix(){
393 suffix=$1
394 shift
395 for v; do echo ${v}${suffix}; done
396 }
397
398 set_all(){
399 value=$1
400 shift
401 for var in $*; do
402 eval $var=$value
403 done
404 }
405
406 set_weak(){
407 value=$1
408 shift
409 for var; do
410 eval : \${$var:=$value}
411 done
412 }
413
414 sanitize_var_name(){
415 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
416 }
417
418 set_safe(){
419 var=$1
420 shift
421 eval $(sanitize_var_name "$var")='$*'
422 }
423
424 get_safe(){
425 eval echo \$$(sanitize_var_name "$1")
426 }
427
428 pushvar(){
429 for pvar in $*; do
430 eval level=\${${pvar}_level:=0}
431 eval ${pvar}_${level}="\$$pvar"
432 eval ${pvar}_level=$(($level+1))
433 done
434 }
435
436 popvar(){
437 for pvar in $*; do
438 eval level=\${${pvar}_level:-0}
439 test $level = 0 && continue
440 eval level=$(($level-1))
441 eval $pvar="\${${pvar}_${level}}"
442 eval ${pvar}_level=$level
443 eval unset ${pvar}_${level}
444 done
445 }
446
447 enable(){
448 set_all yes $*
449 }
450
451 disable(){
452 set_all no $*
453 }
454
455 enable_weak(){
456 set_weak yes $*
457 }
458
459 disable_weak(){
460 set_weak no $*
461 }
462
463 enable_safe(){
464 for var; do
465 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
466 done
467 }
468
469 disable_safe(){
470 for var; do
471 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472 done
473 }
474
475 do_enable_deep(){
476 for var; do
477 enabled $var && continue
478 eval sel="\$${var}_select"
479 eval sgs="\$${var}_suggest"
480 pushvar var sgs
481 enable_deep $sel
482 popvar sgs
483 enable_deep_weak $sgs
484 popvar var
485 done
486 }
487
488 enable_deep(){
489 do_enable_deep $*
490 enable $*
491 }
492
493 enable_deep_weak(){
494 for var; do
495 disabled $var && continue
496 pushvar var
497 do_enable_deep $var
498 popvar var
499 enable_weak $var
500 done
501 }
502
503 enabled(){
504 test "${1#!}" = "$1" && op== || op=!=
505 eval test "x\$${1#!}" $op "xyes"
506 }
507
508 disabled(){
509 test "${1#!}" = "$1" && op== || op=!=
510 eval test "x\$${1#!}" $op "xno"
511 }
512
513 enabled_all(){
514 for opt; do
515 enabled $opt || return 1
516 done
517 }
518
519 disabled_all(){
520 for opt; do
521 disabled $opt || return 1
522 done
523 }
524
525 enabled_any(){
526 for opt; do
527 enabled $opt && return 0
528 done
529 }
530
531 disabled_any(){
532 for opt; do
533 disabled $opt && return 0
534 done
535 return 1
536 }
537
538 set_default(){
539 for opt; do
540 eval : \${$opt:=\$${opt}_default}
541 done
542 }
543
544 is_in(){
545 value=$1
546 shift
547 for var in $*; do
548 [ $var = $value ] && return 0
549 done
550 return 1
551 }
552
553 do_check_deps(){
554 for cfg; do
555 cfg="${cfg#!}"
556 enabled ${cfg}_checking && die "Circular dependency for $cfg."
557 disabled ${cfg}_checking && continue
558 enable ${cfg}_checking
559 append allopts $cfg
560
561 eval dep_all="\$${cfg}_deps"
562 eval dep_any="\$${cfg}_deps_any"
563 eval dep_sel="\$${cfg}_select"
564 eval dep_sgs="\$${cfg}_suggest"
565 eval dep_ifa="\$${cfg}_if"
566 eval dep_ifn="\$${cfg}_if_any"
567
568 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
569 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
570 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
571
572 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
573 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
574 enabled_all $dep_all || disable $cfg
575 enabled_any $dep_any || disable $cfg
576 disabled_any $dep_sel && disable $cfg
577
578 if enabled $cfg; then
579 enable_deep $dep_sel
580 enable_deep_weak $dep_sgs
581 fi
582
583 disable ${cfg}_checking
584 done
585 }
586
587 check_deps(){
588 unset allopts
589
590 do_check_deps "$@"
591
592 for cfg in $allopts; do
593 enabled $cfg || continue
594 eval dep_extralibs="\$${cfg}_extralibs"
595 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
596 done
597 }
598
599 print_config(){
600 pfx=$1
601 files=$2
602 shift 2
603 map 'eval echo "$v \${$v:-no}"' "$@" |
604 awk "BEGIN { split(\"$files\", files) }
605 {
606 c = \"$pfx\" toupper(\$1);
607 v = \$2;
608 sub(/yes/, 1, v);
609 sub(/no/, 0, v);
610 for (f in files) {
611 file = files[f];
612 if (file ~ /\\.h\$/) {
613 printf(\"#define %s %d\\n\", c, v) >>file;
614 } else if (file ~ /\\.asm\$/) {
615 printf(\"%%define %s %d\\n\", c, v) >>file;
616 } else if (file ~ /\\.mak\$/) {
617 n = -v ? \"\" : \"!\";
618 printf(\"%s%s=yes\\n\", n, c) >>file;
619 }
620 }
621 }"
622 }
623
624 print_enabled(){
625 suf=$1
626 shift
627 for v; do
628 enabled $v && printf "%s\n" ${v%$suf};
629 done
630 }
631
632 append(){
633 var=$1
634 shift
635 eval "$var=\"\$$var $*\""
636 }
637
638 prepend(){
639 var=$1
640 shift
641 eval "$var=\"$* \$$var\""
642 }
643
644 add_cppflags(){
645 append CPPFLAGS "$@"
646 }
647
648 add_cflags(){
649 append CFLAGS $($cflags_filter "$@")
650 }
651
652 add_asflags(){
653 append ASFLAGS $($asflags_filter "$@")
654 }
655
656 add_ldflags(){
657 append LDFLAGS $($ldflags_filter "$@")
658 }
659
660 add_extralibs(){
661 prepend extralibs $($ldflags_filter "$@")
662 }
663
664 add_host_cppflags(){
665 append host_cppflags "$@"
666 }
667
668 add_host_cflags(){
669 append host_cflags $($host_cflags_filter "$@")
670 }
671
672 add_host_ldflags(){
673 append host_ldflags $($host_ldflags_filter "$@")
674 }
675
676 add_compat(){
677 append compat_objs $1
678 shift
679 map 'add_cppflags -D$v' "$@"
680 }
681
682 check_cmd(){
683 log "$@"
684 "$@" >> $logfile 2>&1
685 }
686
687 cc_o(){
688 eval printf '%s\\n' $CC_O
689 }
690
691 cc_e(){
692 eval printf '%s\\n' $CC_E
693 }
694
695 check_cc(){
696 log check_cc "$@"
697 cat > $TMPC
698 log_file $TMPC
699 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
700 }
701
702 check_cpp(){
703 log check_cpp "$@"
704 cat > $TMPC
705 log_file $TMPC
706 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
707 }
708
709 as_o(){
710 eval printf '%s\\n' $AS_O
711 }
712
713 check_as(){
714 log check_as "$@"
715 cat > $TMPS
716 log_file $TMPS
717 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
718 }
719
720 check_inline_asm(){
721 log check_inline_asm "$@"
722 name="$1"
723 code="$2"
724 shift 2
725 disable $name
726 check_cc "$@" <<EOF && enable $name
727 void foo(void){ __asm__ volatile($code); }
728 EOF
729 }
730
731 check_insn(){
732 log check_insn "$@"
733 check_inline_asm ${1}_inline "\"$2\""
734 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
735 }
736
737 check_yasm(){
738 log check_yasm "$@"
739 echo "$1" > $TMPS
740 log_file $TMPS
741 shift 1
742 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
743 }
744
745 ld_o(){
746 eval printf '%s\\n' $LD_O
747 }
748
749 check_ld(){
750 log check_ld "$@"
751 flags=$(filter_out '-l*' "$@")
752 libs=$(filter '-l*' "$@")
753 check_cc $($cflags_filter $flags) || return
754 flags=$($ldflags_filter $flags)
755 libs=$($ldflags_filter $libs)
756 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
757 }
758
759 check_code(){
760 log check_code "$@"
761 check=$1
762 headers=$2
763 code=$3
764 shift 3
765 {
766 for hdr in $headers; do
767 echo "#include <$hdr>"
768 done
769 echo "int main(void) { $code; return 0; }"
770 } | check_$check "$@"
771 }
772
773 check_cppflags(){
774 log check_cppflags "$@"
775 check_cc "$@" <<EOF && append CPPFLAGS "$@"
776 int x;
777 EOF
778 }
779
780 check_cflags(){
781 log check_cflags "$@"
782 set -- $($cflags_filter "$@")
783 check_cc "$@" <<EOF && append CFLAGS "$@"
784 int x;
785 EOF
786 }
787
788 test_ldflags(){
789 log test_ldflags "$@"
790 check_ld "$@" <<EOF
791 int main(void){ return 0; }
792 EOF
793 }
794
795 check_ldflags(){
796 log check_ldflags "$@"
797 test_ldflags "$@" && add_ldflags "$@"
798 }
799
800 check_header(){
801 log check_header "$@"
802 header=$1
803 shift
804 disable_safe $header
805 check_cpp "$@" <<EOF && enable_safe $header
806 #include <$header>
807 int x;
808 EOF
809 }
810
811 check_func(){
812 log check_func "$@"
813 func=$1
814 shift
815 disable $func
816 check_ld "$@" <<EOF && enable $func
817 extern int $func();
818 int main(void){ $func(); }
819 EOF
820 }
821
822 check_mathfunc(){
823 log check_mathfunc "$@"
824 func=$1
825 narg=$2
826 shift 2
827 test $narg = 2 && args="f, g" || args="f"
828 disable $func
829 check_ld "$@" <<EOF && enable $func
830 #include <math.h>
831 float foo(float f, float g) { return $func($args); }
832 int main(void){ return 0; }
833 EOF
834 }
835
836 check_func_headers(){
837 log check_func_headers "$@"
838 headers=$1
839 funcs=$2
840 shift 2
841 {
842 for hdr in $headers; do
843 echo "#include <$hdr>"
844 done
845 for func in $funcs; do
846 echo "long check_$func(void) { return (long) $func; }"
847 done
848 echo "int main(void) { return 0; }"
849 } | check_ld "$@" && enable $funcs && enable_safe $headers
850 }
851
852 check_cpp_condition(){
853 log check_cpp_condition "$@"
854 header=$1
855 condition=$2
856 shift 2
857 check_cpp "$@" <<EOF
858 #include <$header>
859 #if !($condition)
860 #error "unsatisfied condition: $condition"
861 #endif
862 EOF
863 }
864
865 check_lib(){
866 log check_lib "$@"
867 header="$1"
868 func="$2"
869 shift 2
870 check_header $header && check_func $func "$@" && add_extralibs "$@"
871 }
872
873 check_lib2(){
874 log check_lib2 "$@"
875 headers="$1"
876 funcs="$2"
877 shift 2
878 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
879 }
880
881 check_pkg_config(){
882 log check_pkg_config "$@"
883 pkg="$1"
884 headers="$2"
885 funcs="$3"
886 shift 3
887 $pkg_config --exists $pkg || return
888 pkg_cflags=$($pkg_config --cflags $pkg)
889 pkg_libs=$($pkg_config --libs $pkg)
890 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
891 set_safe ${pkg}_cflags $pkg_cflags &&
892 set_safe ${pkg}_libs $pkg_libs
893 }
894
895 check_exec(){
896 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
897 }
898
899 check_exec_crash(){
900 code=$(cat)
901
902 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
903 # are safe but may not be available everywhere. Thus we use
904 # raise(SIGTERM) instead. The check is run in a subshell so we
905 # can redirect the "Terminated" message from the shell. SIGBUS
906 # is not defined by standard C so it is used conditionally.
907
908 (check_exec "$@") >> $logfile 2>&1 <<EOF
909 #include <signal.h>
910 static void sighandler(int sig){
911 raise(SIGTERM);
912 }
913 int foo(void){
914 $code
915 }
916 int (*func_ptr)(void) = foo;
917 int main(void){
918 signal(SIGILL, sighandler);
919 signal(SIGFPE, sighandler);
920 signal(SIGSEGV, sighandler);
921 #ifdef SIGBUS
922 signal(SIGBUS, sighandler);
923 #endif
924 return func_ptr();
925 }
926 EOF
927 }
928
929 check_type(){
930 log check_type "$@"
931 headers=$1
932 type=$2
933 shift 2
934 disable_safe "$type"
935 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
936 }
937
938 check_struct(){
939 log check_struct "$@"
940 headers=$1
941 struct=$2
942 member=$3
943 shift 3
944 disable_safe "${struct}_${member}"
945 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
946 enable_safe "${struct}_${member}"
947 }
948
949 check_builtin(){
950 log check_builtin "$@"
951 name=$1
952 headers=$2
953 builtin=$3
954 shift 3
955 disable "$name"
956 check_code ld "$headers" "$builtin" "$@" && enable "$name"
957 }
958
959 require(){
960 name="$1"
961 header="$2"
962 func="$3"
963 shift 3
964 check_lib $header $func "$@" || die "ERROR: $name not found"
965 }
966
967 require2(){
968 name="$1"
969 headers="$2"
970 func="$3"
971 shift 3
972 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
973 }
974
975 require_pkg_config(){
976 pkg="$1"
977 check_pkg_config "$@" || die "ERROR: $pkg not found"
978 add_cflags $(get_safe ${pkg}_cflags)
979 add_extralibs $(get_safe ${pkg}_libs)
980 }
981
982 hostcc_o(){
983 eval printf '%s\\n' $HOSTCC_O
984 }
985
986 check_host_cc(){
987 log check_host_cc "$@"
988 cat > $TMPC
989 log_file $TMPC
990 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
991 }
992
993 check_host_cppflags(){
994 log check_host_cppflags "$@"
995 check_host_cc "$@" <<EOF && append host_cppflags "$@"
996 int x;
997 EOF
998 }
999
1000 check_host_cflags(){
1001 log check_host_cflags "$@"
1002 set -- $($host_cflags_filter "$@")
1003 check_host_cc "$@" <<EOF && append host_cflags "$@"
1004 int x;
1005 EOF
1006 }
1007
1008 apply(){
1009 file=$1
1010 shift
1011 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1012 }
1013
1014 cp_if_changed(){
1015 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1016 mkdir -p "$(dirname $2)"
1017 $cp_f "$1" "$2"
1018 }
1019
1020 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1021 # system-dependent things.
1022
1023 COMPONENT_LIST="
1024 bsfs
1025 decoders
1026 demuxers
1027 encoders
1028 filters
1029 hwaccels
1030 indevs
1031 muxers
1032 outdevs
1033 parsers
1034 protocols
1035 "
1036
1037 EXTERNAL_LIBRARY_LIST="
1038 avisynth
1039 bzlib
1040 frei0r
1041 gnutls
1042 libcdio
1043 libdc1394
1044 libfaac
1045 libfdk_aac
1046 libfreetype
1047 libgsm
1048 libilbc
1049 libmp3lame
1050 libopencore_amrnb
1051 libopencore_amrwb
1052 libopencv
1053 libopenjpeg
1054 libopus
1055 libpulse
1056 librtmp
1057 libschroedinger
1058 libspeex
1059 libtheora
1060 libvo_aacenc
1061 libvo_amrwbenc
1062 libvorbis
1063 libvpx
1064 libwavpack
1065 libx264
1066 libxavs
1067 libxvid
1068 openssl
1069 x11grab
1070 zlib
1071 "
1072
1073 HWACCEL_LIST="
1074 dxva2
1075 vaapi
1076 vda
1077 vdpau
1078 "
1079 LIBRARY_LIST="
1080 avcodec
1081 avdevice
1082 avfilter
1083 avformat
1084 avresample
1085 avutil
1086 swscale
1087 "
1088
1089 PROGRAM_LIST="
1090 avconv
1091 avplay
1092 avprobe
1093 avserver
1094 "
1095
1096 CONFIG_LIST="
1097 $COMPONENT_LIST
1098 $EXTERNAL_LIBRARY_LIST
1099 $HWACCEL_LIST
1100 $LIBRARY_LIST
1101 $PROGRAM_LIST
1102 dct
1103 doc
1104 error_resilience
1105 fft
1106 gpl
1107 gray
1108 hardcoded_tables
1109 lsp
1110 lzo
1111 mdct
1112 memalign_hack
1113 network
1114 nonfree
1115 pic
1116 rdft
1117 runtime_cpudetect
1118 safe_bitstream_reader
1119 shared
1120 small
1121 sram
1122 static
1123 swscale_alpha
1124 thumb
1125 version3
1126 xmm_clobber_test
1127 "
1128
1129 THREADS_LIST='
1130 pthreads
1131 w32threads
1132 '
1133
1134 ATOMICS_LIST='
1135 atomics_gcc
1136 atomics_suncc
1137 atomics_win32
1138 '
1139
1140 ARCH_LIST='
1141 aarch64
1142 alpha
1143 arm
1144 avr32
1145 avr32_ap
1146 avr32_uc
1147 bfin
1148 ia64
1149 m68k
1150 mips
1151 mips64
1152 parisc
1153 ppc
1154 ppc64
1155 s390
1156 sh4
1157 sparc
1158 sparc64
1159 tilegx
1160 tilepro
1161 tomi
1162 x86
1163 x86_32
1164 x86_64
1165 '
1166
1167 ARCH_EXT_LIST_ARM='
1168 armv5te
1169 armv6
1170 armv6t2
1171 neon
1172 vfp
1173 vfpv3
1174 '
1175
1176 ARCH_EXT_LIST_X86='
1177 amd3dnow
1178 amd3dnowext
1179 avx
1180 fma4
1181 mmx
1182 mmxext
1183 sse
1184 sse2
1185 sse3
1186 sse4
1187 sse42
1188 ssse3
1189 '
1190
1191 ARCH_EXT_LIST="
1192 $ARCH_EXT_LIST_ARM
1193 $ARCH_EXT_LIST_X86
1194 altivec
1195 ppc4xx
1196 vis
1197 "
1198
1199 HAVE_LIST_CMDLINE='
1200 inline_asm
1201 symver
1202 yasm
1203 '
1204
1205 HAVE_LIST_PUB='
1206 bigendian
1207 fast_unaligned
1208 '
1209
1210 MATH_FUNCS="
1211 atanf
1212 atan2f
1213 cbrtf
1214 cosf
1215 exp2
1216 exp2f
1217 expf
1218 isinf
1219 isnan
1220 ldexpf
1221 llrint
1222 llrintf
1223 log2
1224 log2f
1225 log10f
1226 lrint
1227 lrintf
1228 powf
1229 rint
1230 round
1231 roundf
1232 sinf
1233 trunc
1234 truncf
1235 "
1236
1237 HAVE_LIST="
1238 $ARCH_EXT_LIST
1239 $(add_suffix _external $ARCH_EXT_LIST)
1240 $(add_suffix _inline $ARCH_EXT_LIST)
1241 $HAVE_LIST_CMDLINE
1242 $HAVE_LIST_PUB
1243 $THREADS_LIST
1244 $ATOMICS_LIST
1245 $MATH_FUNCS
1246 aligned_malloc
1247 aligned_stack
1248 alsa_asoundlib_h
1249 altivec_h
1250 arpa_inet_h
1251 asm_mod_q
1252 asm_mod_y
1253 atomic_cas_ptr
1254 atomics_native
1255 attribute_may_alias
1256 attribute_packed
1257 cdio_paranoia_h
1258 cdio_paranoia_paranoia_h
1259 closesocket
1260 CommandLineToArgvW
1261 cpunop
1262 CryptGenRandom
1263 dcbzl
1264 dev_bktr_ioctl_bt848_h
1265 dev_bktr_ioctl_meteor_h
1266 dev_ic_bt8xx_h
1267 dev_video_bktr_ioctl_bt848_h
1268 dev_video_meteor_ioctl_meteor_h
1269 direct_h
1270 dlfcn_h
1271 dlopen
1272 dos_paths
1273 dxva_h
1274 ebp_available
1275 ebx_available
1276 fast_64bit
1277 fast_clz
1278 fast_cmov
1279 fcntl
1280 fork
1281 getaddrinfo
1282 gethrtime
1283 getopt
1284 GetProcessAffinityMask
1285 GetProcessMemoryInfo
1286 GetProcessTimes
1287 GetSystemTimeAsFileTime
1288 getrusage
1289 getservbyport
1290 gettimeofday
1291 gnu_as
1292 gsm_h
1293 i686
1294 ibm_asm
1295 inet_aton
1296 io_h
1297 isatty
1298 jack_port_get_latency_range
1299 ldbrx
1300 libdc1394_1
1301 libdc1394_2
1302 local_aligned_16
1303 local_aligned_8
1304 localtime_r
1305 loongson
1306 machine_ioctl_bt848_h
1307 machine_ioctl_meteor_h
1308 machine_rw_barrier
1309 malloc_h
1310 MapViewOfFile
1311 memalign
1312 MemoryBarrier
1313 mkstemp
1314 mm_empty
1315 mmap
1316 mprotect
1317 msvcrt
1318 nanosleep
1319 poll_h
1320 posix_memalign
1321 rdtsc
1322 sched_getaffinity
1323 sdl
1324 SetConsoleTextAttribute
1325 setmode
1326 setrlimit
1327 Sleep
1328 sndio_h
1329 socklen_t
1330 soundcard_h
1331 strerror_r
1332 strptime
1333 strtok_r
1334 struct_addrinfo
1335 struct_group_source_req
1336 struct_ip_mreq_source
1337 struct_ipv6_mreq
1338 struct_pollfd
1339 struct_rusage_ru_maxrss
1340 struct_sockaddr_in6
1341 struct_sockaddr_sa_len
1342 struct_sockaddr_storage
1343 struct_v4l2_frmivalenum_discrete
1344 symver_asm_label
1345 symver_gnu_asm
1346 sync_val_compare_and_swap
1347 sysconf
1348 sysctl
1349 sys_mman_h
1350 sys_param_h
1351 sys_resource_h
1352 sys_select_h
1353 sys_soundcard_h
1354 sys_time_h
1355 sys_videoio_h
1356 threads
1357 unistd_h
1358 usleep
1359 vfp_args
1360 VirtualAlloc
1361 windows_h
1362 winsock2_h
1363 xform_asm
1364 xmm_clobbers
1365 "
1366
1367 # options emitted with CONFIG_ prefix but not available on the command line
1368 CONFIG_EXTRA="
1369 aandcttables
1370 ac3dsp
1371 audio_frame_queue
1372 dsputil
1373 gcrypt
1374 golomb
1375 gplv3
1376 h264chroma
1377 h264dsp
1378 h264pred
1379 h264qpel
1380 hpeldsp
1381 huffman
1382 lgplv3
1383 lpc
1384 mpegaudio
1385 mpegaudiodsp
1386 mpegvideo
1387 mpegvideoenc
1388 nettle
1389 rangecoder
1390 rtpdec
1391 rtpenc_chain
1392 sinewin
1393 videodsp
1394 vp3dsp
1395 "
1396
1397 CMDLINE_SELECT="
1398 $ARCH_EXT_LIST
1399 $CONFIG_LIST
1400 $HAVE_LIST_CMDLINE
1401 $THREADS_LIST
1402 asm
1403 cross_compile
1404 debug
1405 extra_warnings
1406 logging
1407 lto
1408 optimizations
1409 "
1410
1411 PATHS_LIST='
1412 bindir
1413 datadir
1414 incdir
1415 libdir
1416 mandir
1417 prefix
1418 shlibdir
1419 '
1420
1421 CMDLINE_SET="
1422 $PATHS_LIST
1423 ar
1424 arch
1425 as
1426 build_suffix
1427 cc
1428 cpu
1429 cross_prefix
1430 dep_cc
1431 extra_version
1432 host_cc
1433 host_cflags
1434 host_ld
1435 host_ldflags
1436 host_libs
1437 host_os
1438 ld
1439 logfile
1440 malloc_prefix
1441 nm
1442 optflags
1443 pkg_config
1444 random_seed
1445 samples
1446 sysinclude
1447 sysroot
1448 target_exec
1449 target_os
1450 target_path
1451 target_samples
1452 toolchain
1453 "
1454
1455 CMDLINE_APPEND="
1456 extra_cflags
1457 host_cppflags
1458 "
1459
1460 # code dependency declarations
1461
1462 # architecture extensions
1463
1464 armv5te_deps="arm"
1465 armv6_deps="arm"
1466 armv6t2_deps="arm"
1467 neon_deps="arm"
1468 vfp_deps="arm"
1469 vfpv3_deps="vfp"
1470
1471 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1472
1473 altivec_deps="ppc"
1474 ppc4xx_deps="ppc"
1475
1476 vis_deps="sparc"
1477
1478 x86_64_suggest="fast_cmov i686"
1479
1480 amd3dnow_deps="mmx"
1481 amd3dnowext_deps="amd3dnow"
1482 mmx_deps="x86"
1483 mmxext_deps="mmx"
1484 sse_deps="mmxext"
1485 sse2_deps="sse"
1486 sse3_deps="sse2"
1487 ssse3_deps="sse3"
1488 sse4_deps="ssse3"
1489 sse42_deps="sse4"
1490 avx_deps="sse42"
1491 fma4_deps="avx"
1492
1493 mmx_external_deps="yasm"
1494 mmx_inline_deps="inline_asm"
1495 mmx_suggest="mmx_external mmx_inline"
1496
1497 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1498 eval dep=\$${ext}_deps
1499 eval ${ext}_external_deps='"${dep}_external"'
1500 eval ${ext}_inline_deps='"${dep}_inline"'
1501 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1502 done
1503
1504 aligned_stack_if_any="ppc x86"
1505 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1506 fast_clz_if_any="alpha avr32 mips ppc x86"
1507 fast_unaligned_if_any="ppc x86"
1508
1509 inline_asm_deps="!tms470"
1510 need_memalign="altivec neon sse"
1511
1512 symver_if_any="symver_asm_label symver_gnu_asm"
1513
1514 log2_deps="!msvcrt"
1515
1516 # subsystems
1517 dct_select="rdft"
1518 error_resilience_select="dsputil"
1519 lpc_select="dsputil"
1520 mdct_select="fft"
1521 rdft_select="fft"
1522 mpegaudio_select="mpegaudiodsp"
1523 mpegaudiodsp_select="dct"
1524 mpegvideo_select="dsputil hpeldsp videodsp"
1525 mpegvideoenc_select="mpegvideo"
1526
1527 # decoders / encoders
1528 aac_decoder_select="mdct sinewin"
1529 aac_encoder_select="audio_frame_queue mdct sinewin"
1530 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1531 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1532 ac3_encoder_select="mdct ac3dsp dsputil"
1533 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1534 aic_decoder_select="dsputil golomb"
1535 alac_encoder_select="lpc"
1536 als_decoder_select="dsputil"
1537 amrnb_decoder_select="lsp"
1538 amrwb_decoder_select="lsp"
1539 amv_decoder_select="dsputil hpeldsp"
1540 ape_decoder_select="dsputil"
1541 asv1_decoder_select="dsputil"
1542 asv1_encoder_select="dsputil"
1543 asv2_decoder_select="dsputil"
1544 asv2_encoder_select="dsputil"
1545 atrac1_decoder_select="mdct sinewin"
1546 atrac3_decoder_select="mdct"
1547 bink_decoder_select="dsputil hpeldsp"
1548 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1549 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1550 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1551 cllc_decoder_select="dsputil"
1552 comfortnoise_encoder_select="lpc"
1553 cook_decoder_select="dsputil mdct sinewin"
1554 cscd_decoder_select="lzo"
1555 cscd_decoder_suggest="zlib"
1556 dca_decoder_select="mdct"
1557 dnxhd_decoder_select="dsputil"
1558 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1559 dvvideo_decoder_select="dsputil"
1560 dvvideo_encoder_select="dsputil"
1561 dxa_decoder_select="zlib"
1562 eac3_decoder_select="ac3_decoder"
1563 eac3_encoder_select="ac3_encoder"
1564 eamad_decoder_select="aandcttables dsputil mpegvideo"
1565 eatgq_decoder_select="aandcttables dsputil"
1566 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1567 ffv1_decoder_select="dsputil golomb rangecoder"
1568 ffv1_encoder_select="dsputil rangecoder"
1569 ffvhuff_decoder_select="dsputil"
1570 ffvhuff_encoder_select="dsputil huffman"
1571 flac_decoder_select="golomb"
1572 flac_encoder_select="dsputil golomb lpc"
1573 flashsv_decoder_select="zlib"
1574 flashsv_encoder_select="zlib"
1575 flashsv2_decoder_select="zlib"
1576 flv_decoder_select="h263_decoder"
1577 flv_encoder_select="h263_encoder"
1578 fourxm_decoder_select="dsputil"
1579 fraps_decoder_select="dsputil huffman"
1580 g2m_decoder_select="dsputil zlib"
1581 h261_decoder_select="error_resilience mpegvideo"
1582 h261_encoder_select="aandcttables mpegvideoenc"
1583 h263_decoder_select="error_resilience h263_parser mpegvideo"
1584 h263_encoder_select="aandcttables mpegvideoenc"
1585 h263i_decoder_select="h263_decoder"
1586 h263p_encoder_select="h263_encoder"
1587 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1588 h264_decoder_suggest="error_resilience"
1589 huffyuv_decoder_select="dsputil"
1590 huffyuv_encoder_select="dsputil huffman"
1591 iac_decoder_select="dsputil fft mdct sinewin"
1592 imc_decoder_select="dsputil fft mdct sinewin"
1593 indeo3_decoder_select="hpeldsp"
1594 interplay_video_decoder_select="hpeldsp"
1595 jpegls_decoder_select="dsputil golomb hpeldsp"
1596 jpegls_encoder_select="golomb"
1597 jv_decoder_select="dsputil"
1598 lagarith_decoder_select="dsputil"
1599 ljpeg_encoder_select="aandcttables mpegvideoenc"
1600 loco_decoder_select="golomb"
1601 mdec_decoder_select="dsputil error_resilience mpegvideo"
1602 mimic_decoder_select="dsputil hpeldsp"
1603 mjpeg_decoder_select="dsputil hpeldsp"
1604 mjpegb_decoder_select="dsputil hpeldsp"
1605 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1606 mlp_decoder_select="dsputil mlp_parser"
1607 motionpixels_decoder_select="dsputil"
1608 mp1_decoder_select="mpegaudio"
1609 mp1float_decoder_select="mpegaudio"
1610 mp2_decoder_select="mpegaudio"
1611 mp2float_decoder_select="mpegaudio"
1612 mp3_decoder_select="mpegaudio"
1613 mp3adu_decoder_select="mpegaudio"
1614 mp3adufloat_decoder_select="mpegaudio"
1615 mp3float_decoder_select="mpegaudio"
1616 mp3on4_decoder_select="mpegaudio"
1617 mp3on4float_decoder_select="mpegaudio"
1618 mpc7_decoder_select="dsputil mpegaudiodsp"
1619 mpc8_decoder_select="dsputil mpegaudiodsp"
1620 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1621 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1622 mpeg1video_decoder_select="error_resilience mpegvideo"
1623 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1624 mpeg2video_decoder_select="error_resilience mpegvideo"
1625 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1626 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1627 mpeg4_encoder_select="h263_encoder"
1628 msmpeg4v1_decoder_select="h263_decoder"
1629 msmpeg4v2_decoder_select="h263_decoder"
1630 msmpeg4v2_encoder_select="h263_encoder"
1631 msmpeg4v3_decoder_select="h263_decoder"
1632 msmpeg4v3_encoder_select="h263_encoder"
1633 mss2_decoder_select="error_resilience vc1_decoder"
1634 mxpeg_decoder_select="dsputil hpeldsp"
1635 nellymoser_decoder_select="mdct sinewin"
1636 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1637 nuv_decoder_select="dsputil lzo"
1638 png_decoder_select="dsputil zlib"
1639 png_encoder_select="dsputil zlib"
1640 prores_decoder_select="dsputil"
1641 prores_encoder_select="dsputil"
1642 qcelp_decoder_select="lsp"
1643 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1644 ra_144_encoder_select="audio_frame_queue lpc"
1645 ralf_decoder_select="golomb"
1646 rv10_decoder_select="error_resilience h263_decoder"
1647 rv10_encoder_select="h263_encoder"
1648 rv20_decoder_select="error_resilience h263_decoder"
1649 rv20_encoder_select="h263_encoder"
1650 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1651 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1652 shorten_decoder_select="golomb"
1653 sipr_decoder_select="lsp"
1654 sp5x_decoder_select="dsputil hpeldsp"
1655 svq1_decoder_select="hpeldsp"
1656 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1657 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1658 svq3_decoder_suggest="error_resilience zlib"
1659 tak_decoder_select="dsputil"
1660 theora_decoder_select="vp3_decoder"
1661 tiff_decoder_suggest="zlib"
1662 tiff_encoder_suggest="zlib"
1663 thp_decoder_select="dsputil hpeldsp"
1664 truehd_decoder_select="mlp_decoder"
1665 truemotion2_decoder_select="dsputil"
1666 truespeech_decoder_select="dsputil"
1667 tscc_decoder_select="zlib"
1668 twinvq_decoder_select="mdct lsp sinewin"
1669 utvideo_decoder_select="dsputil"
1670 utvideo_encoder_select="dsputil huffman"
1671 vble_decoder_select="dsputil"
1672 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1673 vc1image_decoder_select="vc1_decoder"
1674 vorbis_decoder_select="mdct"
1675 vorbis_encoder_select="mdct"
1676 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1677 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1678 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1679 vp6a_decoder_select="vp6_decoder"
1680 vp6f_decoder_select="vp6_decoder"
1681 vp8_decoder_select="h264pred videodsp"
1682 wmapro_decoder_select="mdct sinewin"
1683 wmav1_decoder_select="mdct sinewin"
1684 wmav1_encoder_select="mdct sinewin"
1685 wmav2_decoder_select="mdct sinewin"
1686 wmav2_encoder_select="mdct sinewin"
1687 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1688 wmv1_decoder_select="h263_decoder"
1689 wmv1_encoder_select="h263_encoder"
1690 wmv2_decoder_select="h263_decoder videodsp"
1691 wmv2_encoder_select="h263_encoder"
1692 wmv3_decoder_select="vc1_decoder"
1693 wmv3image_decoder_select="wmv3_decoder"
1694 zerocodec_decoder_select="zlib"
1695 zlib_decoder_select="zlib"
1696 zlib_encoder_select="zlib"
1697 zmbv_decoder_select="zlib"
1698 zmbv_encoder_select="zlib"
1699
1700 # hardware accelerators
1701 dxva2_deps="dxva2api_h"
1702 vaapi_deps="va_va_h"
1703 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1704 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1705 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1706
1707 h263_vaapi_hwaccel_deps="vaapi"
1708 h263_vaapi_hwaccel_select="h263_decoder"
1709 h263_vdpau_hwaccel_deps="vdpau"
1710 h263_vdpau_hwaccel_select="h263_decoder"
1711 h264_dxva2_hwaccel_deps="dxva2"
1712 h264_dxva2_hwaccel_select="h264_decoder"
1713 h264_vaapi_hwaccel_deps="vaapi"
1714 h264_vaapi_hwaccel_select="h264_decoder"
1715 h264_vda_hwaccel_deps="vda"
1716 h264_vda_hwaccel_select="h264_decoder"
1717 h264_vdpau_decoder_deps="vdpau"
1718 h264_vdpau_decoder_select="h264_decoder"
1719 h264_vdpau_hwaccel_deps="vdpau"
1720 h264_vdpau_hwaccel_select="h264_decoder"
1721 mpeg_vdpau_decoder_deps="vdpau"
1722 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1723 mpeg1_vdpau_decoder_deps="vdpau"
1724 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1725 mpeg1_vdpau_hwaccel_deps="vdpau"
1726 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1727 mpeg2_dxva2_hwaccel_deps="dxva2"
1728 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1729 mpeg2_vaapi_hwaccel_deps="vaapi"
1730 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1731 mpeg2_vdpau_hwaccel_deps="vdpau"
1732 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1733 mpeg4_vaapi_hwaccel_deps="vaapi"
1734 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1735 mpeg4_vdpau_decoder_deps="vdpau"
1736 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1737 mpeg4_vdpau_hwaccel_deps="vdpau"
1738 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1739 vc1_dxva2_hwaccel_deps="dxva2"
1740 vc1_dxva2_hwaccel_select="vc1_decoder"
1741 vc1_vaapi_hwaccel_deps="vaapi"
1742 vc1_vaapi_hwaccel_select="vc1_decoder"
1743 vc1_vdpau_decoder_deps="vdpau"
1744 vc1_vdpau_decoder_select="vc1_decoder"
1745 vc1_vdpau_hwaccel_deps="vdpau"
1746 vc1_vdpau_hwaccel_select="vc1_decoder"
1747 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1748 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1749 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1750 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1751
1752 # parsers
1753 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1754 mpeg4video_parser_select="error_resilience mpegvideo"
1755 mpegvideo_parser_select="error_resilience mpegvideo"
1756 vc1_parser_select="mpegvideo"
1757
1758 # external libraries
1759 libfaac_encoder_deps="libfaac"
1760 libfaac_encoder_select="audio_frame_queue"
1761 libfdk_aac_encoder_deps="libfdk_aac"
1762 libfdk_aac_encoder_select="audio_frame_queue"
1763 libgsm_decoder_deps="libgsm"
1764 libgsm_encoder_deps="libgsm"
1765 libgsm_ms_decoder_deps="libgsm"
1766 libgsm_ms_encoder_deps="libgsm"
1767 libilbc_decoder_deps="libilbc"
1768 libilbc_encoder_deps="libilbc"
1769 libmp3lame_encoder_deps="libmp3lame"
1770 libmp3lame_encoder_select="audio_frame_queue"
1771 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1772 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1773 libopencore_amrnb_encoder_select="audio_frame_queue"
1774 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1775 libopenjpeg_decoder_deps="libopenjpeg"
1776 libopenjpeg_encoder_deps="libopenjpeg"
1777 libopus_decoder_deps="libopus"
1778 libopus_encoder_deps="libopus"
1779 libopus_encoder_select="audio_frame_queue"
1780 libschroedinger_decoder_deps="libschroedinger"
1781 libschroedinger_encoder_deps="libschroedinger"
1782 libspeex_decoder_deps="libspeex"
1783 libspeex_encoder_deps="libspeex"
1784 libspeex_encoder_select="audio_frame_queue"
1785 libtheora_encoder_deps="libtheora"
1786 libvo_aacenc_encoder_deps="libvo_aacenc"
1787 libvo_aacenc_encoder_select="audio_frame_queue"
1788 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1789 libvorbis_encoder_deps="libvorbis"
1790 libvorbis_encoder_select="audio_frame_queue"
1791 libvpx_vp8_decoder_deps="libvpx"
1792 libvpx_vp8_encoder_deps="libvpx"
1793 libvpx_vp9_decoder_deps="libvpx"
1794 libvpx_vp9_encoder_deps="libvpx"
1795 libwavpack_encoder_deps="libwavpack"
1796 libx264_encoder_deps="libx264"
1797 libxavs_encoder_deps="libxavs"
1798 libxvid_encoder_deps="libxvid"
1799
1800 # demuxers / muxers
1801 ac3_demuxer_select="ac3_parser"
1802 asf_stream_muxer_select="asf_muxer"
1803 avisynth_demuxer_deps="avisynth"
1804 dirac_demuxer_select="dirac_parser"
1805 eac3_demuxer_select="ac3_parser"
1806 flac_demuxer_select="flac_parser"
1807 ipod_muxer_select="mov_muxer"
1808 ismv_muxer_select="mov_muxer"
1809 matroska_audio_muxer_select="matroska_muxer"
1810 matroska_demuxer_suggest="bzlib lzo zlib"
1811 mov_demuxer_suggest="zlib"
1812 mov_muxer_select="rtpenc_chain"
1813 mp3_demuxer_select="mpegaudio_parser"
1814 mp4_muxer_select="mov_muxer"
1815 mpegts_muxer_select="adts_muxer latm_muxer"
1816 mpegtsraw_demuxer_select="mpegts_demuxer"
1817 mxf_d10_muxer_select="mxf_muxer"
1818 ogg_demuxer_select="golomb"
1819 psp_muxer_select="mov_muxer"
1820 rtp_demuxer_select="sdp_demuxer"
1821 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1822 rtsp_demuxer_select="http_protocol rtpdec"
1823 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1824 sap_demuxer_select="sdp_demuxer"
1825 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1826 sdp_demuxer_select="rtpdec"
1827 smoothstreaming_muxer_select="ismv_muxer"
1828 spdif_muxer_select="aac_parser"
1829 tak_demuxer_select="tak_parser"
1830 tg2_muxer_select="mov_muxer"
1831 tgp_muxer_select="mov_muxer"
1832 w64_demuxer_deps="wav_demuxer"
1833
1834 # indevs / outdevs
1835 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1836 alsa_outdev_deps="alsa_asoundlib_h"
1837 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1838 dv1394_indev_deps="dv1394 dv_demuxer"
1839 fbdev_indev_deps="linux_fb_h"
1840 jack_indev_deps="jack_jack_h pthreads"
1841 libcdio_indev_deps="libcdio"
1842 libdc1394_indev_deps="libdc1394"
1843 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1844 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1845 pulse_indev_deps="libpulse"
1846 sndio_indev_deps="sndio_h"
1847 sndio_outdev_deps="sndio_h"
1848 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1849 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1850 vfwcap_indev_extralibs="-lavicap32"
1851 x11grab_indev_deps="x11grab XShmCreateImage"
1852
1853 # protocols
1854 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1855 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1856 ffrtmpcrypt_protocol_select="tcp_protocol"
1857 ffrtmphttp_protocol_deps="!librtmp_protocol"
1858 ffrtmphttp_protocol_select="http_protocol"
1859 gopher_protocol_select="network"
1860 httpproxy_protocol_select="tcp_protocol"
1861 http_protocol_select="tcp_protocol"
1862 https_protocol_select="tls_protocol"
1863 librtmp_protocol_deps="librtmp"
1864 librtmpe_protocol_deps="librtmp"
1865 librtmps_protocol_deps="librtmp"
1866 librtmpt_protocol_deps="librtmp"
1867 librtmpte_protocol_deps="librtmp"
1868 mmsh_protocol_select="http_protocol"
1869 mmst_protocol_select="network"
1870 rtmp_protocol_deps="!librtmp_protocol"
1871 rtmp_protocol_select="tcp_protocol"
1872 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1873 rtmps_protocol_deps="!librtmp_protocol"
1874 rtmps_protocol_select="tls_protocol"
1875 rtmpt_protocol_select="ffrtmphttp_protocol"
1876 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1877 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1878 rtp_protocol_select="udp_protocol"
1879 sctp_protocol_deps="struct_sctp_event_subscribe"
1880 sctp_protocol_select="network"
1881 srtp_protocol_select="rtp_protocol"
1882 tcp_protocol_select="network"
1883 tls_protocol_deps_any="openssl gnutls"
1884 tls_protocol_select="tcp_protocol"
1885 udp_protocol_select="network"
1886
1887 # filters
1888 blackframe_filter_deps="gpl"
1889 boxblur_filter_deps="gpl"
1890 cropdetect_filter_deps="gpl"
1891 delogo_filter_deps="gpl"
1892 drawtext_filter_deps="libfreetype"
1893 frei0r_filter_deps="frei0r dlopen strtok_r"
1894 frei0r_filter_extralibs='$ldl'
1895 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1896 frei0r_src_filter_extralibs='$ldl'
1897 hqdn3d_filter_deps="gpl"
1898 interlace_filter_deps="gpl"
1899 resample_filter_deps="avresample"
1900 ocv_filter_deps="libopencv"
1901 scale_filter_deps="swscale"
1902 yadif_filter_deps="gpl"
1903
1904 # libraries
1905 avcodec_deps="avutil"
1906 avdevice_deps="avutil avcodec avformat"
1907 avfilter_deps="avutil"
1908 avformat_deps="avutil avcodec"
1909 avresample_deps="avutil"
1910 swscale_deps="avutil"
1911
1912 # programs
1913 avconv_deps="avcodec avfilter avformat avresample swscale"
1914 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1915 fps_filter null_filter resample_filter scale_filter
1916 setpts_filter trim_filter"
1917 avplay_deps="avcodec avformat avresample swscale sdl"
1918 avplay_select="rdft"
1919 avprobe_deps="avcodec avformat"
1920 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1921 avserver_extralibs='$ldl'
1922
1923 doc_deps="texi2html"
1924
1925 # default parameters
1926
1927 logfile="config.log"
1928
1929 # installation paths
1930 prefix_default="/usr/local"
1931 bindir_default='${prefix}/bin'
1932 datadir_default='${prefix}/share/avconv'
1933 incdir_default='${prefix}/include'
1934 libdir_default='${prefix}/lib'
1935 mandir_default='${prefix}/share/man'
1936 shlibdir_default="$libdir_default"
1937
1938 # toolchain
1939 ar_default="ar"
1940 cc_default="gcc"
1941 host_cc_default="gcc"
1942 cp_f="cp -f"
1943 ln_s="ln -s -f"
1944 nm_default="nm -g"
1945 objformat="elf"
1946 pkg_config_default=pkg-config
1947 ranlib="ranlib"
1948 yasmexe="yasm"
1949
1950 nogas=":"
1951
1952 # machine
1953 arch_default=$(uname -m)
1954 cpu="generic"
1955
1956 # OS
1957 target_os_default=$(tolower $(uname -s))
1958 host_os=$target_os_default
1959
1960 # configurable options
1961 enable $LIBRARY_LIST $PROGRAM_LIST
1962
1963 enable asm
1964 enable debug
1965 enable doc
1966 enable optimizations
1967 enable safe_bitstream_reader
1968 enable static
1969 enable swscale_alpha
1970
1971 # By default, enable only those hwaccels that have no external dependencies.
1972 enable dxva2 vdpau
1973
1974 # build settings
1975 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1976 AVSERVERLDFLAGS=-Wl,-E
1977 LIBPREF="lib"
1978 LIBSUF=".a"
1979 FULLNAME='$(NAME)$(BUILDSUF)'
1980 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1981 SLIBPREF="lib"
1982 SLIBSUF=".so"
1983 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1984 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1985 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1986 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1987 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1988 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1989
1990 asflags_filter=echo
1991 cflags_filter=echo
1992 ldflags_filter=echo
1993
1994 AS_C='-c'
1995 AS_O='-o $@'
1996 CC_C='-c'
1997 CC_E='-E -o $@'
1998 CC_O='-o $@'
1999 LD_O='-o $@'
2000 LD_LIB='-l%'
2001 LD_PATH='-L'
2002 HOSTCC_C='-c'
2003 HOSTCC_O='-o $@'
2004 HOSTLD_O='-o $@'
2005
2006 host_cflags='-O3 -g'
2007 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2008 host_libs='-lm'
2009 host_cflags_filter=echo
2010 host_ldflags_filter=echo
2011
2012 target_path='$(CURDIR)'
2013
2014 # since the object filename is not given with the -MM flag, the compiler
2015 # is only able to print the basename, and we must add the path ourselves
2016 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2017 DEPFLAGS='-MM'
2018
2019 # find source path
2020 if test -f configure; then
2021 source_path=.
2022 else
2023 source_path=$(cd $(dirname "$0"); pwd)
2024 echo "$source_path" | grep -q '[[:blank:]]' &&
2025 die "Out of tree builds are impossible with whitespace in source path."
2026 test -e "$source_path/config.h" &&
2027 die "Out of tree builds are impossible with config.h in source dir."
2028 fi
2029
2030 for v in "$@"; do
2031 r=${v#*=}
2032 l=${v%"$r"}
2033 r=$(sh_quote "$r")
2034 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2035 done
2036
2037 find_things(){
2038 thing=$1
2039 pattern=$2
2040 file=$source_path/$3
2041 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2042 }
2043
2044 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2045 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2046 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2047 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2048 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2049 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2050 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2051 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2052 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2053 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2054 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2055
2056 ALL_COMPONENTS="
2057 $BSF_LIST
2058 $DECODER_LIST
2059 $DEMUXER_LIST
2060 $ENCODER_LIST
2061 $FILTER_LIST
2062 $HWACCEL_LIST
2063 $INDEV_LIST
2064 $MUXER_LIST
2065 $OUTDEV_LIST
2066 $PARSER_LIST
2067 $PROTOCOL_LIST
2068 "
2069
2070 for n in $COMPONENT_LIST; do
2071 v=$(toupper ${n%s})_LIST
2072 eval enable \$$v
2073 eval ${n}_if_any="\$$v"
2074 done
2075
2076 enable $ARCH_EXT_LIST
2077
2078 die_unknown(){
2079 echo "Unknown option \"$1\"."
2080 echo "See $0 --help for available options."
2081 exit 1
2082 }
2083
2084 print_3_columns() {
2085 cat | tr ' ' '\n' | sort | pr -r -3 -t
2086 }
2087
2088 show_list() {
2089 suffix=_$1
2090 shift
2091 echo $* | sed s/$suffix//g | print_3_columns
2092 exit 0
2093 }
2094
2095 rand_list(){
2096 IFS=', '
2097 set -- $*
2098 unset IFS
2099 for thing; do
2100 comp=${thing%:*}
2101 prob=${thing#$comp}
2102 prob=${prob#:}
2103 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2104 echo "prob ${prob:-0.5}"
2105 printf '%s\n' $comp
2106 done
2107 }
2108
2109 do_random(){
2110 action=$1
2111 shift
2112 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2113 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2114 }
2115
2116 for opt do
2117 optval="${opt#*=}"
2118 case "$opt" in
2119 --extra-ldflags=*)
2120 add_ldflags $optval
2121 ;;
2122 --extra-libs=*)
2123 add_extralibs $optval
2124 ;;
2125 --disable-devices)
2126 disable $INDEV_LIST $OUTDEV_LIST
2127 ;;
2128 --enable-debug=*)
2129 debuglevel="$optval"
2130 ;;
2131 --disable-programs)
2132 disable $PROGRAM_LIST
2133 ;;
2134 --disable-everything)
2135 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2136 ;;
2137 --disable-all)
2138 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2139 disable $LIBRARY_LIST $PROGRAM_LIST doc
2140 ;;
2141 --enable-random|--disable-random)
2142 action=${opt%%-random}
2143 do_random ${action#--} $COMPONENT_LIST
2144 ;;
2145 --enable-random=*|--disable-random=*)
2146 action=${opt%%-random=*}
2147 do_random ${action#--} $optval
2148 ;;
2149 --enable-*=*|--disable-*=*)
2150 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2151 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2152 eval list=\$$(toupper $thing)_LIST
2153 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2154 $action $(filter "$name" $list)
2155 ;;
2156 --enable-?*|--disable-?*)
2157 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2158 if is_in $option $COMPONENT_LIST; then
2159 test $action = disable && action=unset
2160 eval $action \$$(toupper ${option%s})_LIST
2161 elif is_in $option $CMDLINE_SELECT; then
2162 $action $option
2163 else
2164 die_unknown $opt
2165 fi
2166 ;;
2167 --list-*)
2168 NAME="${opt#--list-}"
2169 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2170 NAME=${NAME%s}
2171 eval show_list $NAME \$$(toupper $NAME)_LIST
2172 ;;
2173 --help|-h) show_help
2174 ;;
2175 *)
2176 optname="${opt%%=*}"
2177 optname="${optname#--}"
2178 optname=$(echo "$optname" | sed 's/-/_/g')
2179 if is_in $optname $CMDLINE_SET; then
2180 eval $optname='$optval'
2181 elif is_in $optname $CMDLINE_APPEND; then
2182 append $optname "$optval"
2183 else
2184 die_unknown $opt
2185 fi
2186 ;;
2187 esac
2188 done
2189
2190 disabled logging && logfile=/dev/null
2191
2192 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2193 set >> $logfile
2194
2195 test -n "$cross_prefix" && enable cross_compile
2196
2197 if enabled cross_compile; then
2198 test -n "$arch" && test -n "$target_os" ||
2199 die "Must specify target arch and OS when cross-compiling"
2200 fi
2201
2202 ar_default="${cross_prefix}${ar_default}"
2203 cc_default="${cross_prefix}${cc_default}"
2204 nm_default="${cross_prefix}${nm_default}"
2205 pkg_config_default="${cross_prefix}${pkg_config_default}"
2206 ranlib="${cross_prefix}${ranlib}"
2207
2208 sysinclude_default="${sysroot}/usr/include"
2209
2210 case "$toolchain" in
2211 clang-asan)
2212 cc_default="clang"
2213 add_cflags -fsanitize=address
2214 add_ldflags -fsanitize=address
2215 ;;
2216 clang-tsan)
2217 cc_default="clang"
2218 add_cflags -fsanitize=thread -pie
2219 add_ldflags -fsanitize=thread -pie
2220 ;;
2221 gcc-asan)
2222 cc_default="gcc"
2223 add_cflags -fsanitize=address
2224 add_ldflags -fsanitize=address
2225 ;;
2226 gcc-tsan)
2227 cc_default="gcc"
2228 add_cflags -fsanitize=thread -pie -fPIC
2229 add_ldflags -fsanitize=thread -pie -fPIC
2230 ;;
2231 valgrind-massif)
2232 target_exec_default="valgrind"
2233 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2234 ;;
2235 valgrind-memcheck)
2236 target_exec_default="valgrind"
2237 target_exec_args="--track-origins=yes --leak-check=full"
2238 ;;
2239 msvc)
2240 cc_default="c99wrap cl"
2241 ld_default="c99wrap link"
2242 nm_default="dumpbin -symbols"
2243 ar_default="lib"
2244 target_os_default="win32"
2245 ;;
2246 icl)
2247 cc_default="c99wrap -noconv icl"
2248 ld_default="c99wrap xilink"
2249 nm_default="dumpbin -symbols"
2250 ar_default="xilib"
2251 target_os_default="win32"
2252 ;;
2253 gcov)
2254 add_cflags -fprofile-arcs -ftest-coverage
2255 add_ldflags -fprofile-arcs -ftest-coverage
2256 ;;
2257 ?*)
2258 die "Unknown toolchain $toolchain"
2259 ;;
2260 esac
2261
2262 set_default arch cc pkg_config sysinclude target_exec target_os
2263 enabled cross_compile || host_cc_default=$cc
2264 set_default host_cc
2265
2266 if ! $pkg_config --version >/dev/null 2>&1; then
2267 warn "$pkg_config not found, library detection may fail."
2268 pkg_config=false
2269 fi
2270
2271 exesuf() {
2272 case $1 in
2273 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2274 esac
2275 }
2276
2277 EXESUF=$(exesuf $target_os)
2278 HOSTEXESUF=$(exesuf $host_os)
2279
2280 # set temporary file name
2281 : ${TMPDIR:=$TEMPDIR}
2282 : ${TMPDIR:=$TMP}
2283 : ${TMPDIR:=/tmp}
2284
2285 if ! check_cmd mktemp -u XXXXXX; then
2286 # simple replacement for missing mktemp
2287 # NOT SAFE FOR GENERAL USE
2288 mktemp(){
2289 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2290 }
2291 fi
2292
2293 tmpfile(){
2294 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2295 (set -C; exec > $tmp) 2>/dev/null ||
2296 die "Unable to create temporary file in $TMPDIR."
2297 append TMPFILES $tmp
2298 eval $1=$tmp
2299 }
2300
2301 trap 'rm -f -- $TMPFILES' EXIT
2302
2303 tmpfile TMPASM .asm
2304 tmpfile TMPC .c
2305 tmpfile TMPE $EXESUF
2306 tmpfile TMPH .h
2307 tmpfile TMPO .o
2308 tmpfile TMPS .S
2309 tmpfile TMPSH .sh
2310 tmpfile TMPV .ver
2311
2312 unset -f mktemp
2313
2314 chmod +x $TMPE
2315
2316 # make sure we can execute files in $TMPDIR
2317 cat > $TMPSH 2>> $logfile <<EOF
2318 #! /bin/sh
2319 EOF
2320 chmod +x $TMPSH >> $logfile 2>&1
2321 if ! $TMPSH >> $logfile 2>&1; then
2322 cat <<EOF
2323 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2324 variable to another directory and make sure that it is not mounted noexec.
2325 EOF
2326 die "Sanity test failed."
2327 fi
2328
2329 ccc_flags(){
2330 for flag; do
2331 case $flag in
2332 -std=c99) echo -c99 ;;
2333 -mcpu=*) echo -arch ${flag#*=} ;;
2334 -mieee) echo -ieee ;;
2335 -O*|-fast) echo $flag ;;
2336 -fno-math-errno) echo -assume nomath_errno ;;
2337 -g) echo -g3 ;;
2338 -Wall) echo -msg_enable level2 ;;
2339 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2340 -Wl,*) echo $flag ;;
2341 -f*|-W*) ;;
2342 *) echo $flag ;;
2343 esac
2344 done
2345 }
2346
2347 msvc_common_flags(){
2348 for flag; do
2349 case $flag in
2350 # In addition to specifying certain flags under the compiler
2351 # specific filters, they must be specified here as well or else the
2352 # generic catch all at the bottom will print the original flag.
2353 -Wall) ;;
2354 -std=c99) ;;
2355 # Common flags
2356 -fomit-frame-pointer) ;;
2357 -g) echo -Z7 ;;
2358 -fno-math-errno) ;;
2359 -fno-common) ;;
2360 -fno-signed-zeros) ;;
2361 -fPIC) ;;
2362 -mthumb) ;;
2363 -march=*) ;;
2364 -lz) echo zlib.lib ;;
2365 -lavifil32) echo vfw32.lib ;;
2366 -lavicap32) echo vfw32.lib user32.lib ;;
2367 -l*) echo ${flag#-l}.lib ;;
2368 *) echo $flag ;;
2369 esac
2370 done
2371 }
2372
2373 msvc_flags(){
2374 msvc_common_flags "$@"
2375 for flag; do
2376 case $flag in
2377 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2378 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2379 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2380 -wd4996 -wd4273 ;;
2381 esac
2382 done
2383 }
2384
2385 icl_flags(){
2386 msvc_common_flags "$@"
2387 for flag; do
2388 case $flag in
2389 # Despite what Intel's documentation says -Wall, which is supported
2390 # on Windows, does enable remarks so disable them here.
2391 -Wall) echo $flag -Qdiag-disable:remark ;;
2392 -std=c99) echo -Qstd=c99 ;;
2393 esac
2394 done
2395 }
2396
2397 pgi_flags(){
2398 for flag; do
2399 case $flag in
2400 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2401 -fomit-frame-pointer) echo -Mnoframe ;;
2402 -g) echo -gopt ;;
2403 *) echo $flag ;;
2404 esac
2405 done
2406 }
2407
2408 suncc_flags(){
2409 for flag; do
2410 case $flag in
2411 -march=*|-mcpu=*)
2412 case "${flag#*=}" in
2413 native) echo -xtarget=native ;;
2414 v9|niagara) echo -xarch=sparc ;;
2415 ultrasparc) echo -xarch=sparcvis ;;
2416 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2417 i586|pentium) echo -xchip=pentium ;;
2418 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2419 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2420 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2421 pentium4*) echo -xtarget=pentium4 ;;
2422 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2423 *-sse3) echo -xarch=sse3 ;;
2424 core2) echo -xarch=ssse3 -xchip=core2 ;;
2425 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2426 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2427 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2428 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2429 k8|opteron|athlon64|athlon-fx)
2430 echo -xarch=sse2a ;;
2431 athlon*) echo -xarch=pentium_proa ;;
2432 esac
2433 ;;
2434 -std=c99) echo -xc99 ;;
2435 -fomit-frame-pointer) echo -xregs=frameptr ;;
2436 -fPIC) echo -KPIC -xcode=pic32 ;;
2437 -W*,*) echo $flag ;;
2438 -f*-*|-W*|-mimpure-text) ;;
2439 -shared) echo -G ;;
2440 *) echo $flag ;;
2441 esac
2442 done
2443 }
2444
2445 tms470_flags(){
2446 for flag; do
2447 case $flag in
2448 -march=*|-mcpu=*)
2449 case "${flag#*=}" in
2450 armv7-a|cortex-a*) echo -mv=7a8 ;;
2451 armv7-r|cortex-r*) echo -mv=7r4 ;;
2452 armv7-m|cortex-m*) echo -mv=7m3 ;;
2453 armv6*|arm11*) echo -mv=6 ;;
2454 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2455 echo -mv=5e ;;
2456 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2457 esac
2458 ;;
2459 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2460 -mfpu=vfp) echo --float_support=vfpv2 ;;
2461 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2462 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2463 -msoft-float) echo --float_support=vfplib ;;
2464 -O[0-3]|-mf=*) echo $flag ;;
2465 -g) echo -g -mn ;;
2466 -pds=*) echo $flag ;;
2467 -D*|-I*) echo $flag ;;
2468 --gcc|--abi=*) echo $flag ;;
2469 -me) echo $flag ;;
2470 esac
2471 done
2472 }
2473
2474 probe_cc(){
2475 pfx=$1
2476 _cc=$2
2477
2478 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2479 unset _ld_o _ldflags _ld_lib _ld_path
2480 unset _depflags _DEPCMD _DEPFLAGS
2481 _flags_filter=echo
2482
2483 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2484 _type=llvm_gcc
2485 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2486 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2487 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2488 _cflags_speed='-O3'
2489 _cflags_size='-Os'
2490 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2491 _type=gcc
2492 gcc_version=$($_cc --version | head -n1)
2493 gcc_basever=$($_cc -dumpversion)
2494 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2495 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2496 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2497 if ! $_cc -dumpversion | grep -q '^2\.'; then
2498 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2499 fi
2500 _cflags_speed='-O3'
2501 _cflags_size='-Os'
2502 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2503 _type=icc
2504 _ident=$($_cc --version | head -n1)
2505 _depflags='-MMD'
2506 _cflags_speed='-O3'
2507 _cflags_size='-Os'
2508 _cflags_noopt='-O1'
2509 elif $_cc -v 2>&1 | grep -q xlc; then
2510 _type=xlc
2511 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2512 _cflags_speed='-O5'
2513 _cflags_size='-O5 -qcompact'
2514 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2515 _type=ccc
2516 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2517 _DEPFLAGS='-M'
2518 _cflags_speed='-fast'
2519 _cflags_size='-O1'
2520 _flags_filter=ccc_flags
2521 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2522 test -d "$sysroot" || die "No valid sysroot specified."
2523 _type=armcc
2524 _ident=$($_cc --vsn | head -n1)
2525 armcc_conf="$PWD/armcc.conf"
2526 $_cc --arm_linux_configure \
2527 --arm_linux_config_file="$armcc_conf" \
2528 --configure_sysroot="$sysroot" \
2529 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2530 die "Error creating armcc configuration file."
2531 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2532 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2533 as_default="${cross_prefix}gcc"
2534 _depflags='-MMD'
2535 _cflags_speed='-O3'
2536 _cflags_size='-Os'
2537 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2538 _type=tms470
2539 _ident=$($_cc -version | head -n1 | tr -s ' ')
2540 _flags='--gcc --abi=eabi -me'
2541 _cc_e='-ppl -fe=$@'
2542 _cc_o='-fe=$@'
2543 _depflags='-ppa -ppd=$(@:.o=.d)'
2544 _cflags_speed='-O3 -mf=5'
2545 _cflags_size='-O3 -mf=2'
2546 _flags_filter=tms470_flags
2547 elif $_cc -v 2>&1 | grep -q clang; then
2548 _type=clang
2549 _ident=$($_cc --version | head -n1)
2550 _depflags='-MMD'
2551 _cflags_speed='-O3'
2552 _cflags_size='-Os'
2553 elif $_cc -V 2>&1 | grep -q Sun; then
2554 _type=suncc
2555 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2556 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2557 _DEPFLAGS='-xM1 -xc99'
2558 _ldflags='-std=c99'
2559 _cflags_speed='-O5'
2560 _cflags_size='-O5 -xspace'
2561 _flags_filter=suncc_flags
2562 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2563 _type=pathscale
2564 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2565 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2566 _cflags_speed='-O2'
2567 _cflags_size='-Os'
2568 _flags_filter='filter_out -Wdisabled-optimization'
2569 elif $_cc -v 2>&1 | grep -q Open64; then
2570 _type=open64
2571 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2572 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2573 _cflags_speed='-O2'
2574 _cflags_size='-Os'
2575 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2576 elif $_cc -V 2>&1 | grep -q Portland; then
2577 _type=pgi
2578 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2579 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2580 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2581 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2582 _cflags_noopt="-O1"
2583 _flags_filter=pgi_flags
2584 elif $_cc 2>&1 | grep -q Microsoft; then
2585 _type=msvc
2586 _ident=$($cc 2>&1 | head -n1)
2587 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2588 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2589 _cflags_speed="-O2"
2590 _cflags_size="-O1"
2591 # Nonstandard output options, to avoid msys path conversion issues.
2592 # Relies on wrapper to remap it.
2593 if $_cc 2>&1 | grep -q Linker; then
2594 _ld_o='-out $@'
2595 else
2596 _ld_o='-Fe$@'
2597 fi
2598 _cc_o='-Fo $@'
2599 _cc_e='-P -Fi $@'
2600 _flags_filter=msvc_flags
2601 _ld_lib='lib%.a'
2602 _ld_path='-libpath:'
2603 _flags='-nologo'
2604 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2605 if [ $pfx = hostcc ]; then
2606 append _cflags -Dsnprintf=_snprintf
2607 fi
2608 elif $_cc 2>&1 | grep -q Intel; then
2609 _type=icl
2610 _ident=$($cc 2>&1 | head -n1)
2611 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2612 # Not only is O3 broken on 13.x+ but it is slower on all previous
2613 # versions (tested) as well.
2614 _cflags_speed="-O2"
2615 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2616 # Nonstandard output options, to avoid msys path conversion issues.
2617 # Relies on wrapper to remap it.
2618 if $_cc 2>&1 | grep -q Linker; then
2619 _ld_o='-out $@'
2620 else
2621 _ld_o='-Fe$@'
2622 fi
2623 _cc_o='-Fo $@'
2624 _cc_e='-P'
2625 _flags_filter=icl_flags
2626 _ld_lib='lib%.a'
2627 _ld_path='-libpath:'
2628 # -Qdiag-error to make icl error when seeing certain unknown arguments
2629 _flags='-nologo -Qdiag-error:4044,10157'
2630 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2631 # with MSVC which enables it by default.
2632 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2633 if [ $pfx = hostcc ]; then
2634 append _cflags -Dsnprintf=_snprintf
2635 fi
2636 fi
2637
2638 eval ${pfx}_type=\$_type
2639 eval ${pfx}_ident=\$_ident
2640 }
2641
2642 set_ccvars(){
2643 eval ${1}_C=\${_cc_c-\${${1}_C}}
2644 eval ${1}_E=\${_cc_e-\${${1}_E}}
2645 eval ${1}_O=\${_cc_o-\${${1}_O}}
2646
2647 if [ -n "$_depflags" ]; then
2648 eval ${1}_DEPFLAGS=\$_depflags
2649 else
2650 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2651 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2652 eval DEP${1}FLAGS=\$_flags
2653 fi
2654 }
2655
2656 probe_cc cc "$cc"
2657 cflags_filter=$_flags_filter
2658 cflags_speed=$_cflags_speed
2659 cflags_size=$_cflags_size
2660 cflags_noopt=$_cflags_noopt
2661 add_cflags $_flags $_cflags
2662 cc_ldflags=$_ldflags
2663 set_ccvars CC
2664
2665 probe_cc hostcc "$host_cc"
2666 host_cflags_filter=$_flags_filter
2667 add_host_cflags $_flags $_cflags
2668 set_ccvars HOSTCC
2669
2670 test -n "$cc_type" && enable $cc_type ||
2671 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2672
2673 : ${as_default:=$cc}
2674 : ${dep_cc_default:=$cc}
2675 : ${ld_default:=$cc}
2676 : ${host_ld_default:=$host_cc}
2677 set_default ar as dep_cc ld host_ld
2678
2679 probe_cc as "$as"
2680 asflags_filter=$_flags_filter
2681 add_asflags $_flags $_cflags
2682 set_ccvars AS
2683
2684 probe_cc ld "$ld"
2685 ldflags_filter=$_flags_filter
2686 add_ldflags $_flags $_ldflags
2687 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2688 LD_O=${_ld_o-$LD_O}
2689 LD_LIB=${_ld_lib-$LD_LIB}
2690 LD_PATH=${_ld_path-$LD_PATH}
2691
2692 probe_cc hostld "$host_ld"
2693 host_ldflags_filter=$_flags_filter
2694 add_host_ldflags $_flags $_ldflags
2695 HOSTLD_O=${_ld_o-$HOSTLD_O}
2696
2697 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2698 probe_cc depcc "$dep_cc"
2699 CCDEP=${_DEPCMD:-$DEPCMD}
2700 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2701 DEPCCFLAGS=$_flags
2702 fi
2703
2704 if $ar 2>&1 | grep -q Microsoft; then
2705 arflags="-nologo"
2706 ar_o='-out:$@'
2707 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2708 arflags="rq"
2709 ar_o='$@'
2710 else
2711 arflags="rc"
2712 ar_o='$@'
2713 fi
2714
2715 add_cflags $extra_cflags
2716 add_asflags $extra_cflags
2717
2718 if test -n "$sysroot"; then
2719 case "$cc_type" in
2720 gcc|llvm_gcc|clang)
2721 add_cppflags --sysroot="$sysroot"
2722 add_ldflags --sysroot="$sysroot"
2723 ;;
2724 tms470)
2725 add_cppflags -I"$sysinclude"
2726 add_ldflags --sysroot="$sysroot"
2727 ;;
2728 esac
2729 fi
2730
2731 if test "$cpu" = host; then
2732 enabled cross_compile &&
2733 die "--cpu=host makes no sense when cross-compiling."
2734
2735 case "$cc_type" in
2736 gcc|llvm_gcc)
2737 check_native(){
2738 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2739 sed -n "/cc1.*$1=/{
2740 s/.*$1=\\([^ ]*\\).*/\\1/
2741 p
2742 q
2743 }" $TMPE
2744 }
2745 cpu=$(check_native -march || check_native -mcpu)
2746 ;;
2747 esac
2748
2749 test "${cpu:-host}" = host &&
2750 die "--cpu=host not supported with compiler $cc"
2751 fi
2752
2753 # Deal with common $arch aliases
2754 case "$arch" in
2755 aarch64|arm64)
2756 arch="aarch64"
2757 ;;
2758 arm*)
2759 arch="arm"
2760 ;;
2761 mips*|IP*)
2762 arch="mips"
2763 ;;
2764 parisc*|hppa*)
2765 arch="parisc"
2766 ;;
2767 "Power Macintosh"|ppc*|powerpc*)
2768 arch="ppc"
2769 ;;
2770 s390|s390x)
2771 arch="s390"
2772 ;;
2773 sh4|sh)
2774 arch="sh4"
2775 ;;
2776 sun4u|sparc*)
2777 arch="sparc"
2778 ;;
2779 tilegx|tile-gx)
2780 arch="tilegx"
2781 ;;
2782 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2783 arch="x86"
2784 ;;
2785 esac
2786
2787 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2788 enable $arch
2789
2790 # Add processor-specific flags
2791 if enabled aarch64; then
2792
2793 case $cpu in
2794 armv*)
2795 cpuflags="-march=$cpu"
2796 ;;
2797 *)
2798 cpuflags="-mcpu=$cpu"
2799 ;;
2800 esac
2801
2802 elif enabled alpha; then
2803
2804 cpuflags="-mcpu=$cpu"
2805
2806 elif enabled arm; then
2807
2808 check_arm_arch() {
2809 check_cpp_condition stddef.h \
2810 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2811 $cpuflags
2812 }
2813
2814 probe_arm_arch() {
2815 if check_arm_arch 4; then echo armv4;
2816 elif check_arm_arch 4T; then echo armv4t;
2817 elif check_arm_arch 5; then echo armv5;
2818 elif check_arm_arch 5E; then echo armv5e;
2819 elif check_arm_arch 5T; then echo armv5t;
2820 elif check_arm_arch 5TE; then echo armv5te;
2821 elif check_arm_arch 5TEJ; then echo armv5te;
2822 elif check_arm_arch 6; then echo armv6;
2823 elif check_arm_arch 6J; then echo armv6j;
2824 elif check_arm_arch 6K; then echo armv6k;
2825 elif check_arm_arch 6Z; then echo armv6z;
2826 elif check_arm_arch 6ZK; then echo armv6zk;
2827 elif check_arm_arch 6T2; then echo armv6t2;
2828 elif check_arm_arch 7; then echo armv7;
2829 elif check_arm_arch 7A 7_A; then echo armv7-a;
2830 elif check_arm_arch 7R 7_R; then echo armv7-r;
2831 elif check_arm_arch 7M 7_M; then echo armv7-m;
2832 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2833 elif check_arm_arch 8A 8_A; then echo armv8-a;
2834 fi
2835 }
2836
2837 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2838
2839 case $cpu in
2840 armv*)
2841 cpuflags="-march=$cpu"
2842 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2843 ;;
2844 *)
2845 cpuflags="-mcpu=$cpu"
2846 case $cpu in
2847 cortex-a*) subarch=armv7a ;;
2848 cortex-r*) subarch=armv7r ;;
2849 cortex-m*) enable thumb; subarch=armv7m ;;
2850 arm11*) subarch=armv6 ;;
2851 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2852 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2853 *) subarch=$(probe_arm_arch) ;;
2854 esac
2855 ;;
2856 esac
2857
2858 case "$subarch" in
2859 armv5t*) enable fast_clz ;;
2860 armv[6-8]*) enable fast_clz fast_unaligned ;;
2861 esac
2862
2863 elif enabled avr32; then
2864
2865 case $cpu in
2866 ap7[02]0[0-2])
2867 subarch="avr32_ap"
2868 cpuflags="-mpart=$cpu"
2869 ;;
2870 ap)
2871 subarch="avr32_ap"
2872 cpuflags="-march=$cpu"
2873 ;;
2874 uc3[ab]*)
2875 subarch="avr32_uc"
2876 cpuflags="-mcpu=$cpu"
2877 ;;
2878 uc)
2879 subarch="avr32_uc"
2880 cpuflags="-march=$cpu"
2881 ;;
2882 esac
2883
2884 elif enabled bfin; then
2885
2886 cpuflags="-mcpu=$cpu"
2887
2888 elif enabled mips; then
2889
2890 cpuflags="-march=$cpu"
2891
2892 elif enabled ppc; then
2893
2894 case $(tolower $cpu) in
2895 601|ppc601|powerpc601)
2896 cpuflags="-mcpu=601"
2897 disable altivec
2898 ;;
2899 603*|ppc603*|powerpc603*)
2900 cpuflags="-mcpu=603"
2901 disable altivec
2902 ;;
2903 604*|ppc604*|powerpc604*)
2904 cpuflags="-mcpu=604"
2905 disable altivec
2906 ;;
2907 g3|75*|ppc75*|powerpc75*)
2908 cpuflags="-mcpu=750"
2909 disable altivec
2910 ;;
2911 g4|745*|ppc745*|powerpc745*)
2912 cpuflags="-mcpu=7450"
2913 ;;
2914 74*|ppc74*|powerpc74*)
2915 cpuflags="-mcpu=7400"
2916 ;;
2917 g5|970|ppc970|powerpc970)
2918 cpuflags="-mcpu=970"
2919 ;;
2920 power[3-7]*)
2921 cpuflags="-mcpu=$cpu"
2922 ;;
2923 cell)
2924 cpuflags="-mcpu=cell"
2925 enable ldbrx
2926 ;;
2927 e500mc)
2928 cpuflags="-mcpu=e500mc"
2929 disable altivec
2930 ;;
2931 e500v2)
2932 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2933 disable altivec
2934 ;;
2935 e500)
2936 cpuflags="-mcpu=8540 -mhard-float"
2937 disable altivec
2938 ;;
2939 esac
2940
2941 elif enabled sparc; then
2942
2943 case $cpu in
2944 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2945 cpuflags="-mcpu=$cpu"
2946 disable vis
2947 ;;
2948 ultrasparc*|niagara[234])
2949 cpuflags="-mcpu=$cpu"
2950 ;;
2951 esac
2952
2953 elif enabled x86; then
2954
2955 case $cpu in
2956 i[345]86|pentium)
2957 cpuflags="-march=$cpu"
2958 disable mmx
2959 ;;
2960 # targets that do NOT support nopl and conditional mov (cmov)
2961 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2962 cpuflags="-march=$cpu"
2963 disable i686
2964 ;;
2965 # targets that do support nopl and conditional mov (cmov)
2966 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2967 cpuflags="-march=$cpu"
2968 enable i686
2969 enable fast_cmov
2970 ;;
2971 # targets that do support conditional mov but on which it's slow
2972 pentium4|pentium4m|prescott|nocona)
2973 cpuflags="-march=$cpu"
2974 enable i686
2975 disable fast_cmov
2976 ;;
2977 esac
2978
2979 fi
2980
2981 if [ "$cpu" != generic ]; then
2982 add_cflags $cpuflags
2983 add_asflags $cpuflags
2984 fi
2985
2986 # compiler sanity check
2987 check_exec <<EOF
2988 int main(void){ return 0; }
2989 EOF
2990 if test "$?" != 0; then
2991 echo "$cc is unable to create an executable file."
2992 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2993 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2994 echo "Only do this if you know what cross compiling means."
2995 fi
2996 die "C compiler test failed."
2997 fi
2998
2999 add_cppflags -D_ISOC99_SOURCE
3000 check_cflags -std=c99
3001 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3002 #include <stdlib.h>
3003 EOF
3004 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3005 #include <stdlib.h>
3006 EOF
3007
3008 check_host_cflags -std=c99
3009 check_host_cflags -Wall
3010
3011 check_64bit(){
3012 arch32=$1
3013 arch64=$2
3014 expr=$3
3015 check_code cc "" "int test[2*($expr) - 1]" &&
3016 subarch=$arch64 || subarch=$arch32
3017 }
3018
3019 case "$arch" in
3020 aarch64|alpha|ia64)
3021 spic=$shared
3022 ;;
3023 mips)
3024 check_64bit mips mips64 '_MIPS_SIM > 1'
3025 spic=$shared
3026 ;;
3027 parisc)
3028 check_64bit parisc parisc64 'sizeof(void *) > 4'
3029 spic=$shared
3030 ;;
3031 ppc)
3032 check_64bit ppc ppc64 'sizeof(void *) > 4'
3033 spic=$shared
3034 ;;
3035 sparc)
3036 check_64bit sparc sparc64 'sizeof(void *) > 4'
3037 spic=$shared
3038 ;;
3039 x86)
3040 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3041 if test "$subarch" = "x86_64"; then
3042 spic=$shared
3043 fi
3044 ;;
3045 esac
3046
3047 enable $subarch
3048 enabled spic && enable_weak pic
3049
3050 # OS specific
3051 case $target_os in
3052 aix)
3053 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3054 ;;
3055 haiku)
3056 prefix_default="/boot/common"
3057 network_extralibs="-lnetwork"
3058 host_libs=
3059 ;;
3060 sunos)
3061 AVSERVERLDFLAGS=""
3062 SHFLAGS='-shared -Wl,-h,$$(@F)'
3063 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3064 network_extralibs="-lsocket -lnsl"
3065 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3066 # When using suncc to build, the Solaris linker will mark
3067 # an executable with each instruction set encountered by
3068 # the Solaris assembler. As our libraries contain their own
3069 # guards for processor-specific code, instead suppress
3070 # generation of the HWCAPS ELF section on Solaris x86 only.
3071 enabled_all suncc x86 &&
3072 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3073 add_ldflags -Wl,-M,mapfile
3074 nm_default='nm -P -g'
3075 ;;
3076 netbsd)
3077 disable symver
3078 oss_indev_extralibs="-lossaudio"
3079 oss_outdev_extralibs="-lossaudio"
3080 ;;
3081 openbsd|bitrig)
3082 disable symver
3083 SHFLAGS='-shared'
3084 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3085 SLIB_INSTALL_LINKS=
3086 oss_indev_extralibs="-lossaudio"
3087 oss_outdev_extralibs="-lossaudio"
3088 ;;
3089 dragonfly)
3090 disable symver
3091 ;;
3092 freebsd)
3093 ;;
3094 bsd/os)
3095 add_extralibs -lpoll -lgnugetopt
3096 ;;
3097 darwin)
3098 gas="gas-preprocessor.pl $cc"
3099 enabled ppc && add_asflags -force_cpusubtype_ALL
3100 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3101 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3102 add_ldflags -Wl,-dynamic,-search_paths_first
3103 SLIBSUF=".dylib"
3104 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3105 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3106 AVSERVERLDFLAGS=-Wl,-bind_at_load
3107 objformat="macho"
3108 enabled x86_64 && objformat="macho64"
3109 enabled_any pic shared ||
3110 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3111 ;;
3112 mingw32*)
3113 if test $target_os = "mingw32ce"; then
3114 disable network
3115 else
3116 target_os=mingw32
3117 fi
3118 LIBTARGET=i386
3119 if enabled x86_64; then
3120 LIBTARGET="i386:x86-64"
3121 elif enabled arm; then
3122 LIBTARGET=arm-wince
3123 fi
3124 check_ldflags -Wl,--nxcompat
3125 check_ldflags -Wl,--dynamicbase
3126 shlibdir_default="$bindir_default"
3127 SLIBPREF=""
3128 SLIBSUF=".dll"
3129 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3130 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3131 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3132 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3133 SLIB_INSTALL_LINKS=
3134 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3135 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3136 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3137 objformat="win32"
3138 dlltool="${cross_prefix}dlltool"
3139 ranlib=:
3140 enable dos_paths
3141 ;;
3142 win32|win64)
3143 if enabled shared; then
3144 # Link to the import library instead of the normal static library
3145 # for shared libs.
3146 LD_LIB='%.lib'
3147 # Cannot build shared and static libs at the same time with MSVC.
3148 disable static
3149 fi
3150 shlibdir_default="$bindir_default"
3151 SLIBPREF=""
3152 SLIBSUF=".dll"
3153 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3154 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3155 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3156 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3157 SLIB_INSTALL_LINKS=
3158 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3159 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3160 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3161 objformat="win32"
3162 ranlib=:
3163 enable dos_paths
3164 ;;
3165 cygwin*)
3166 target_os=cygwin
3167 shlibdir_default="$bindir_default"
3168 SLIBPREF="cyg"
3169 SLIBSUF=".dll"
3170 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3171 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3172 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3173 SLIB_INSTALL_LINKS=
3174 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3175 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3176 objformat="win32"
3177 enable dos_paths
3178 ;;
3179 *-dos|freedos|opendos)
3180 network_extralibs="-lsocket"
3181 objformat="coff"
3182 enable dos_paths
3183 add_cppflags -U__STRICT_ANSI__
3184 ;;
3185 linux)
3186 enable dv1394
3187 ;;
3188 irix*)
3189 target_os=irix
3190 ranlib="echo ignoring ranlib"
3191 ;;
3192 os/2*)
3193 ln_s="cp -f"
3194 objformat="aout"
3195 add_cppflags -D_GNU_SOURCE
3196 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3197 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3198 AVSERVERLDFLAGS=""
3199 LIBSUF="_s.a"
3200 SLIBPREF=""
3201 SLIBSUF=".dll"
3202 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3203 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3204 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3205 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3206 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3207 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3208 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3209 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3210 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3211 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3212 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3213 enable dos_paths
3214 ;;
3215 gnu/kfreebsd)
3216 add_cppflags -D_BSD_SOURCE
3217 ;;
3218 gnu)
3219 ;;
3220 qnx)
3221 add_cppflags -D_QNX_SOURCE
3222 network_extralibs="-lsocket"
3223 ;;
3224 symbian)
3225 SLIBSUF=".dll"
3226 enable dos_paths
3227 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3228 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3229 add_ldflags -Wl,--target1-abs,--no-undefined \
3230 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3231 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3232 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3233 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3234 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3235 ;;
3236 osf1)
3237 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3238 AVSERVERLDFLAGS=
3239 ;;
3240 minix)
3241 ;;
3242 plan9)
3243 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3244 -D_REENTRANT_SOURCE \
3245 -D_RESEARCH_SOURCE \
3246 -DFD_SETSIZE=96 \
3247 -DHAVE_SOCK_OPTS
3248 add_compat strtod.o strtod=avpriv_strtod
3249 network_extralibs='-lbsd'
3250 exeobjs=compat/plan9/main.o
3251 disable avserver
3252 cp_f='cp'
3253 ;;
3254 none)
3255 ;;
3256 *)
3257 die "Unknown OS '$target_os'."
3258 ;;
3259 esac
3260
3261 # determine libc flavour
3262
3263 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3264 if check_cpp_condition features.h "defined __UCLIBC__"; then
3265 libc_type=uclibc
3266 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3267 elif check_cpp_condition features.h "defined __GLIBC__"; then
3268 libc_type=glibc
3269 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3270 # MinGW headers can be installed on Cygwin, so check for newlib first.
3271 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3272 libc_type=newlib
3273 add_cppflags -U__STRICT_ANSI__
3274 elif check_header _mingw.h; then
3275 libc_type=mingw
3276 check_cpp_condition _mingw.h \
3277 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3278 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3279 die "ERROR: MinGW runtime version must be >= 3.15."
3280 add_cppflags -U__STRICT_ANSI__
3281 elif check_func_headers stdlib.h _get_doserrno; then
3282 libc_type=msvcrt
3283 add_compat strtod.o strtod=avpriv_strtod
3284 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3285 _snprintf=avpriv_snprintf \
3286 vsnprintf=avpriv_vsnprintf
3287 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3288 # 0x601 by default unless something else is set by the user.
3289 # This can easily lead to us detecting functions only present
3290 # in such new versions and producing binaries requiring windows 7.0.
3291 # Therefore explicitly set the default to XP unless the user has
3292 # set something else on the command line.
3293 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3294 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3295 libc_type=klibc
3296 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3297 libc_type=bionic
3298 add_compat strtod.o strtod=avpriv_strtod
3299 fi
3300
3301 test -n "$libc_type" && enable $libc_type
3302
3303 # hacks for compiler/libc/os combinations
3304
3305 if enabled_all tms470 glibc; then
3306 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3307 add_cppflags -D__USER_LABEL_PREFIX__=
3308 add_cppflags -D__builtin_memset=memset
3309 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3310 add_cflags -pds=48 # incompatible redefinition of macro
3311 fi
3312
3313 if enabled_all ccc glibc; then
3314 add_ldflags -Wl,-z,now # calls to libots crash without this
3315 fi
3316
3317 esc(){
3318 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3319 }
3320
3321 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3322
3323 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3324
3325 set_default $PATHS_LIST
3326 set_default nm
3327
3328 # we need to build at least one lib type
3329 if ! enabled_any static shared; then
3330 cat <<EOF
3331 At least one library type must be built.
3332 Specify --enable-static to build the static libraries or --enable-shared to
3333 build the shared libraries as well. To only build the shared libraries specify
3334 --disable-static in addition to --enable-shared.
3335 EOF
3336 exit 1;
3337 fi
3338
3339 die_license_disabled() {
3340 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3341 }
3342
3343 die_license_disabled gpl libcdio
3344 die_license_disabled gpl libx264
3345 die_license_disabled gpl libxavs
3346 die_license_disabled gpl libxvid
3347 die_license_disabled gpl x11grab
3348
3349 die_license_disabled nonfree libfaac
3350 die_license_disabled nonfree libfdk_aac
3351 die_license_disabled nonfree openssl
3352
3353 die_license_disabled version3 libopencore_amrnb
3354 die_license_disabled version3 libopencore_amrwb
3355 die_license_disabled version3 libvo_aacenc
3356 die_license_disabled version3 libvo_amrwbenc
3357
3358 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3359
3360 disabled optimizations || check_cflags -fomit-frame-pointer
3361
3362 enable_weak_pic() {
3363 disabled pic && return
3364 enable pic
3365 add_cppflags -DPIC
3366 case "$target_os" in
3367 mingw*|cygwin*)
3368 ;;
3369 *)
3370 add_cflags -fPIC
3371 ;;
3372 esac
3373 add_asflags -fPIC
3374 }
3375
3376 enabled pic && enable_weak_pic
3377
3378 check_cc <<EOF || die "Symbol mangling check failed."
3379 int ff_extern;
3380 EOF
3381 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3382 extern_prefix=${sym%%ff_extern*}
3383
3384 check_cc <<EOF && enable_weak inline_asm
3385 void foo(void) { __asm__ volatile ("" ::); }
3386 EOF
3387
3388 _restrict=
3389 for restrict_keyword in restrict __restrict__ __restrict; do
3390 check_cc <<EOF && _restrict=$restrict_keyword && break
3391 void foo(char * $restrict_keyword p);
3392 EOF
3393 done
3394
3395 check_cc <<EOF && enable attribute_packed
3396 struct { int x; } __attribute__((packed)) x;
3397 EOF
3398
3399 check_cc <<EOF && enable attribute_may_alias
3400 union { int x; } __attribute__((may_alias)) x;
3401 EOF
3402
3403 check_cc <<EOF || die "endian test failed"
3404 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3405 EOF
3406 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3407
3408 if enabled alpha; then
3409
3410 check_cflags -mieee
3411
3412 elif enabled arm; then
3413
3414 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3415 enabled thumb && check_cflags -mthumb || check_cflags -marm
3416 nogas=die
3417
3418 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3419 enable vfp_args
3420 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3421 case "${cross_prefix:-$cc}" in
3422 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3423 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3424 __asm__ (".eabi_attribute 28, 1");
3425 int main(void) { return 0; }
3426 EOF
3427 esac
3428 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3429 fi
3430
3431 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3432 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3433 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3434 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3435 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3436 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3437
3438 [ $target_os = linux ] ||
3439 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3440 $ARCH_EXT_LIST_ARM
3441
3442 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3443 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3444
3445 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3446
3447 elif enabled mips; then
3448
3449 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3450
3451 elif enabled parisc; then
3452
3453 if enabled gcc; then
3454 case $($cc -dumpversion) in
3455 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3456 esac
3457 fi
3458
3459 elif enabled ppc; then
3460
3461 enable local_aligned_8 local_aligned_16
3462
3463 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3464 check_inline_asm ibm_asm '"add 0, 0, 0"'
3465 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3466 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3467
3468 # AltiVec flags: The FSF version of GCC differs from the Apple version
3469 if enabled altivec; then
3470 nogas=warn
3471 check_cflags -maltivec -mabi=altivec &&
3472 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3473 check_cflags -faltivec
3474
3475 # check if our compiler supports Motorola AltiVec C API
3476 check_cc <<EOF || disable altivec
3477 $inc_altivec_h
3478 int main(void) {
3479 vector signed int v1 = (vector signed int) { 0 };
3480 vector signed int v2 = (vector signed int) { 1 };
3481 v1 = vec_add(v1, v2);
3482 return 0;
3483 }
3484 EOF
3485
3486 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3487 fi
3488
3489 elif enabled sparc; then
3490
3491 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3492
3493 elif enabled x86; then
3494
3495 check_builtin rdtsc intrin.h "__rdtsc()"
3496 check_builtin mm_empty mmintrin.h "_mm_empty()"
3497
3498 enable local_aligned_8 local_aligned_16
3499
3500 # check whether EBP is available on x86
3501 # As 'i' is stored on the stack, this program will crash
3502 # if the base pointer is used to access it because the
3503 # base pointer is cleared in the inline assembly code.
3504 check_exec_crash <<EOF && enable ebp_available
3505 volatile int i=0;
3506 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3507 return i;
3508 EOF
3509
3510 # check whether EBX is available on x86
3511 check_inline_asm ebx_available '""::"b"(0)' &&
3512 check_inline_asm ebx_available '"":::"%ebx"'
3513
3514 # check whether xmm clobbers are supported
3515 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3516
3517 # check whether binutils is new enough to compile SSSE3/MMXEXT
3518 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3519 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3520
3521 if ! disabled_any asm mmx yasm; then
3522 if check_cmd $yasmexe --version; then
3523 enabled x86_64 && yasm_extra="-m amd64"
3524 yasm_debug="-g dwarf2"
3525 elif check_cmd nasm -v; then
3526 yasmexe=nasm
3527 yasm_debug="-g -F dwarf"
3528 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3529 fi
3530
3531 YASMFLAGS="-f $objformat $yasm_extra"
3532 enabled pic && append YASMFLAGS "-DPIC"
3533 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3534 case "$objformat" in
3535 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3536 esac
3537
3538 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3539 die "yasm not found, use --disable-yasm for a crippled build"
3540 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3541 check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3542 fi
3543
3544 case "$cpu" in
3545 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3546 disable fast_clz
3547 ;;
3548 esac
3549
3550 fi
3551
3552 if enabled asm; then
3553 as=${gas:=$as}
3554 check_as <<EOF && enable gnu_as || \
3555 $nogas "GNU assembler not found, install gas-preprocessor"
3556 .macro m n
3557 \n: .int 0
3558 .endm
3559 m x
3560 EOF
3561 fi
3562
3563 check_ldflags -Wl,--as-needed
3564
3565 if check_func dlopen; then
3566 ldl=
3567 elif check_func dlopen -ldl; then
3568 ldl=-ldl
3569 fi
3570
3571 if ! disabled network; then
3572 check_type "sys/types.h sys/socket.h" socklen_t
3573 check_type netdb.h "struct addrinfo"
3574 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3575 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3576 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3577 check_type netinet/in.h "struct sockaddr_in6"
3578 check_type poll.h "struct pollfd"
3579 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3580 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3581 check_type netinet/sctp.h "struct sctp_event_subscribe"
3582 check_func getaddrinfo $network_extralibs
3583 check_func getservbyport $network_extralibs
3584 # Prefer arpa/inet.h over winsock2
3585 if check_header arpa/inet.h ; then
3586 check_func closesocket
3587 elif check_header winsock2.h ; then
3588 check_func_headers winsock2.h closesocket -lws2 &&
3589 network_extralibs="-lws2" ||
3590 { check_func_headers winsock2.h closesocket -lws2_32 &&
3591 network_extralibs="-lws2_32"; }
3592 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3593 check_type ws2tcpip.h socklen_t
3594 check_type ws2tcpip.h "struct addrinfo"
3595 check_type ws2tcpip.h "struct group_source_req"
3596 check_type ws2tcpip.h "struct ip_mreq_source"
3597 check_type ws2tcpip.h "struct ipv6_mreq"
3598 check_type winsock2.h "struct pollfd"
3599 check_type ws2tcpip.h "struct sockaddr_in6"
3600 check_type ws2tcpip.h "struct sockaddr_storage"
3601 check_struct winsock2.h "struct sockaddr" sa_len
3602 else
3603 disable network
3604 fi
3605 fi
3606
3607 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3608 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3609
3610 check_func fcntl
3611 check_func fork
3612 check_func_headers stdlib.h getenv
3613 check_func gethrtime
3614 check_func getopt
3615 check_func getrusage
3616 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3617 check_func gettimeofday
3618 check_func inet_aton $network_extralibs
3619 check_func isatty
3620 check_func localtime_r
3621 check_func ${malloc_prefix}memalign && enable memalign
3622 check_func mkstemp
3623 check_func mmap
3624 check_func mprotect
3625 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3626 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3627 check_func setrlimit
3628 check_func strerror_r
3629 check_func strptime
3630 check_func strtok_r
3631 check_func sched_getaffinity
3632 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3633 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3634 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3635 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3636 check_func sysconf
3637 check_func sysctl
3638 check_func usleep
3639 check_func_headers io.h setmode
3640 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3641 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3642 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3643 check_func_headers windows.h GetProcessAffinityMask
3644 check_func_headers windows.h GetProcessTimes
3645 check_func_headers windows.h GetSystemTimeAsFileTime
3646 check_func_headers windows.h MapViewOfFile
3647 check_func_headers windows.h SetConsoleTextAttribute
3648 check_func_headers windows.h Sleep
3649 check_func_headers windows.h VirtualAlloc
3650
3651 check_header direct.h
3652 check_header dlfcn.h
3653 check_header dxva.h
3654 check_header dxva2api.h
3655 check_header io.h
3656 check_header malloc.h
3657 check_header poll.h
3658 check_header sys/mman.h
3659 check_header sys/param.h
3660 check_header sys/resource.h
3661 check_header sys/select.h
3662 check_header sys/time.h
3663 check_header unistd.h
3664 check_header vdpau/vdpau.h
3665 check_header vdpau/vdpau_x11.h
3666 check_header VideoDecodeAcceleration/VDADecoder.h
3667 check_header windows.h
3668 check_header X11/extensions/XvMClib.h
3669
3670 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3671 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3672
3673 if ! disabled w32threads && ! enabled pthreads; then
3674 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3675 fi
3676
3677 # check for some common methods of building with pthread support
3678 # do this before the optional library checks as some of them require pthreads
3679 if ! disabled pthreads && ! enabled w32threads; then
3680 enable pthreads
3681 if check_func pthread_create; then
3682 :
3683 elif check_func pthread_create -pthread; then
3684 add_cflags -pthread
3685 add_extralibs -pthread
3686 elif check_func pthread_create -pthreads; then
3687 add_cflags -pthreads
3688 add_extralibs -pthreads
3689 elif check_func pthread_create -lpthreadGC2; then
3690 add_extralibs -lpthreadGC2
3691 elif ! check_lib pthread.h pthread_create -lpthread; then
3692 disable pthreads
3693 fi
3694 fi
3695
3696 for thread in $THREADS_LIST; do
3697 if enabled $thread; then
3698 test -n "$thread_type" &&
3699 die "ERROR: Only one thread type must be selected." ||
3700 thread_type="$thread"
3701 fi
3702 done
3703
3704 enabled sync_val_compare_and_swap && enable atomics_gcc
3705 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3706 enabled MemoryBarrier && enable atomics_win32
3707
3708 check_lib math.h sin -lm && LIBM="-lm"