riff: Move demuxing code to a separate file.
[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 inline_asm_labels
1298 isatty
1299 jack_port_get_latency_range
1300 ldbrx
1301 libdc1394_1
1302 libdc1394_2
1303 local_aligned_16
1304 local_aligned_8
1305 localtime_r
1306 loongson
1307 machine_ioctl_bt848_h
1308 machine_ioctl_meteor_h
1309 machine_rw_barrier
1310 malloc_h
1311 MapViewOfFile
1312 memalign
1313 MemoryBarrier
1314 mkstemp
1315 mm_empty
1316 mmap
1317 mprotect
1318 msvcrt
1319 nanosleep
1320 poll_h
1321 posix_memalign
1322 pragma_deprecated
1323 rdtsc
1324 sched_getaffinity
1325 sdl
1326 SetConsoleTextAttribute
1327 setmode
1328 setrlimit
1329 Sleep
1330 sndio_h
1331 socklen_t
1332 soundcard_h
1333 strerror_r
1334 strptime
1335 strtok_r
1336 struct_addrinfo
1337 struct_group_source_req
1338 struct_ip_mreq_source
1339 struct_ipv6_mreq
1340 struct_pollfd
1341 struct_rusage_ru_maxrss
1342 struct_sockaddr_in6
1343 struct_sockaddr_sa_len
1344 struct_sockaddr_storage
1345 struct_v4l2_frmivalenum_discrete
1346 symver_asm_label
1347 symver_gnu_asm
1348 sync_val_compare_and_swap
1349 sysconf
1350 sysctl
1351 sys_mman_h
1352 sys_param_h
1353 sys_resource_h
1354 sys_select_h
1355 sys_soundcard_h
1356 sys_time_h
1357 sys_un_h
1358 sys_videoio_h
1359 threads
1360 unistd_h
1361 usleep
1362 vfp_args
1363 VirtualAlloc
1364 windows_h
1365 winsock2_h
1366 xform_asm
1367 xmm_clobbers
1368 "
1369
1370 # options emitted with CONFIG_ prefix but not available on the command line
1371 CONFIG_EXTRA="
1372 aandcttables
1373 ac3dsp
1374 audio_frame_queue
1375 dsputil
1376 gcrypt
1377 golomb
1378 gplv3
1379 h264chroma
1380 h264dsp
1381 h264pred
1382 h264qpel
1383 hpeldsp
1384 huffman
1385 lgplv3
1386 lpc
1387 mpegaudio
1388 mpegaudiodsp
1389 mpegvideo
1390 mpegvideoenc
1391 nettle
1392 rangecoder
1393 riffdec
1394 riffenc
1395 rtpdec
1396 rtpenc_chain
1397 sinewin
1398 videodsp
1399 vp3dsp
1400 "
1401
1402 CMDLINE_SELECT="
1403 $ARCH_EXT_LIST
1404 $CONFIG_LIST
1405 $HAVE_LIST_CMDLINE
1406 $THREADS_LIST
1407 asm
1408 cross_compile
1409 debug
1410 extra_warnings
1411 logging
1412 lto
1413 optimizations
1414 "
1415
1416 PATHS_LIST='
1417 bindir
1418 datadir
1419 incdir
1420 libdir
1421 mandir
1422 prefix
1423 shlibdir
1424 '
1425
1426 CMDLINE_SET="
1427 $PATHS_LIST
1428 ar
1429 arch
1430 as
1431 build_suffix
1432 cc
1433 cpu
1434 cross_prefix
1435 dep_cc
1436 extra_version
1437 host_cc
1438 host_cflags
1439 host_ld
1440 host_ldflags
1441 host_libs
1442 host_os
1443 ld
1444 logfile
1445 malloc_prefix
1446 nm
1447 optflags
1448 pkg_config
1449 random_seed
1450 samples
1451 sysinclude
1452 sysroot
1453 target_exec
1454 target_os
1455 target_path
1456 target_samples
1457 toolchain
1458 "
1459
1460 CMDLINE_APPEND="
1461 extra_cflags
1462 host_cppflags
1463 "
1464
1465 # code dependency declarations
1466
1467 # architecture extensions
1468
1469 armv5te_deps="arm"
1470 armv6_deps="arm"
1471 armv6t2_deps="arm"
1472 neon_deps="arm"
1473 vfp_deps="arm"
1474 vfpv3_deps="vfp"
1475
1476 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1477
1478 altivec_deps="ppc"
1479 ppc4xx_deps="ppc"
1480
1481 vis_deps="sparc"
1482
1483 x86_64_suggest="fast_cmov i686"
1484
1485 amd3dnow_deps="mmx"
1486 amd3dnowext_deps="amd3dnow"
1487 mmx_deps="x86"
1488 mmxext_deps="mmx"
1489 sse_deps="mmxext"
1490 sse2_deps="sse"
1491 sse3_deps="sse2"
1492 ssse3_deps="sse3"
1493 sse4_deps="ssse3"
1494 sse42_deps="sse4"
1495 avx_deps="sse42"
1496 fma4_deps="avx"
1497
1498 mmx_external_deps="yasm"
1499 mmx_inline_deps="inline_asm"
1500 mmx_suggest="mmx_external mmx_inline"
1501
1502 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1503 eval dep=\$${ext}_deps
1504 eval ${ext}_external_deps='"${dep}_external"'
1505 eval ${ext}_inline_deps='"${dep}_inline"'
1506 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1507 done
1508
1509 aligned_stack_if_any="ppc x86"
1510 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1511 fast_clz_if_any="alpha avr32 mips ppc x86"
1512 fast_unaligned_if_any="ppc x86"
1513
1514 inline_asm_deps="!tms470"
1515 need_memalign="altivec neon sse"
1516
1517 symver_if_any="symver_asm_label symver_gnu_asm"
1518
1519 log2_deps="!msvcrt"
1520
1521 # subsystems
1522 dct_select="rdft"
1523 error_resilience_select="dsputil"
1524 lpc_select="dsputil"
1525 mdct_select="fft"
1526 rdft_select="fft"
1527 mpegaudio_select="mpegaudiodsp"
1528 mpegaudiodsp_select="dct"
1529 mpegvideo_select="dsputil hpeldsp videodsp"
1530 mpegvideoenc_select="mpegvideo"
1531
1532 # decoders / encoders
1533 aac_decoder_select="mdct sinewin"
1534 aac_encoder_select="audio_frame_queue mdct sinewin"
1535 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1536 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1537 ac3_encoder_select="mdct ac3dsp dsputil"
1538 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1539 aic_decoder_select="dsputil golomb"
1540 alac_encoder_select="lpc"
1541 als_decoder_select="dsputil"
1542 amrnb_decoder_select="lsp"
1543 amrwb_decoder_select="lsp"
1544 amv_decoder_select="dsputil hpeldsp"
1545 ape_decoder_select="dsputil"
1546 asv1_decoder_select="dsputil"
1547 asv1_encoder_select="dsputil"
1548 asv2_decoder_select="dsputil"
1549 asv2_encoder_select="dsputil"
1550 atrac1_decoder_select="mdct sinewin"
1551 atrac3_decoder_select="mdct"
1552 bink_decoder_select="dsputil hpeldsp"
1553 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1554 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1555 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1556 cllc_decoder_select="dsputil"
1557 comfortnoise_encoder_select="lpc"
1558 cook_decoder_select="dsputil mdct sinewin"
1559 cscd_decoder_select="lzo"
1560 cscd_decoder_suggest="zlib"
1561 dca_decoder_select="mdct"
1562 dnxhd_decoder_select="dsputil"
1563 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1564 dvvideo_decoder_select="dsputil"
1565 dvvideo_encoder_select="dsputil"
1566 dxa_decoder_select="zlib"
1567 eac3_decoder_select="ac3_decoder"
1568 eac3_encoder_select="ac3_encoder"
1569 eamad_decoder_select="aandcttables dsputil mpegvideo"
1570 eatgq_decoder_select="aandcttables dsputil"
1571 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1572 ffv1_decoder_select="dsputil golomb rangecoder"
1573 ffv1_encoder_select="dsputil rangecoder"
1574 ffvhuff_decoder_select="dsputil"
1575 ffvhuff_encoder_select="dsputil huffman"
1576 flac_decoder_select="golomb"
1577 flac_encoder_select="dsputil golomb lpc"
1578 flashsv_decoder_select="zlib"
1579 flashsv_encoder_select="zlib"
1580 flashsv2_decoder_select="zlib"
1581 flv_decoder_select="h263_decoder"
1582 flv_encoder_select="h263_encoder"
1583 fourxm_decoder_select="dsputil"
1584 fraps_decoder_select="dsputil huffman"
1585 g2m_decoder_select="dsputil zlib"
1586 h261_decoder_select="error_resilience mpegvideo"
1587 h261_encoder_select="aandcttables mpegvideoenc"
1588 h263_decoder_select="error_resilience h263_parser mpegvideo"
1589 h263_encoder_select="aandcttables mpegvideoenc"
1590 h263i_decoder_select="h263_decoder"
1591 h263p_encoder_select="h263_encoder"
1592 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1593 h264_decoder_suggest="error_resilience"
1594 huffyuv_decoder_select="dsputil"
1595 huffyuv_encoder_select="dsputil huffman"
1596 iac_decoder_select="dsputil fft mdct sinewin"
1597 imc_decoder_select="dsputil fft mdct sinewin"
1598 indeo3_decoder_select="hpeldsp"
1599 interplay_video_decoder_select="hpeldsp"
1600 jpegls_decoder_select="dsputil golomb hpeldsp"
1601 jpegls_encoder_select="golomb"
1602 jv_decoder_select="dsputil"
1603 lagarith_decoder_select="dsputil"
1604 ljpeg_encoder_select="aandcttables mpegvideoenc"
1605 loco_decoder_select="golomb"
1606 mdec_decoder_select="dsputil error_resilience mpegvideo"
1607 mimic_decoder_select="dsputil hpeldsp"
1608 mjpeg_decoder_select="dsputil hpeldsp"
1609 mjpegb_decoder_select="dsputil hpeldsp"
1610 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1611 mlp_decoder_select="dsputil mlp_parser"
1612 motionpixels_decoder_select="dsputil"
1613 mp1_decoder_select="mpegaudio"
1614 mp1float_decoder_select="mpegaudio"
1615 mp2_decoder_select="mpegaudio"
1616 mp2float_decoder_select="mpegaudio"
1617 mp3_decoder_select="mpegaudio"
1618 mp3adu_decoder_select="mpegaudio"
1619 mp3adufloat_decoder_select="mpegaudio"
1620 mp3float_decoder_select="mpegaudio"
1621 mp3on4_decoder_select="mpegaudio"
1622 mp3on4float_decoder_select="mpegaudio"
1623 mpc7_decoder_select="dsputil mpegaudiodsp"
1624 mpc8_decoder_select="dsputil mpegaudiodsp"
1625 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1626 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1627 mpeg1video_decoder_select="error_resilience mpegvideo"
1628 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1629 mpeg2video_decoder_select="error_resilience mpegvideo"
1630 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1631 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1632 mpeg4_encoder_select="h263_encoder"
1633 msmpeg4v1_decoder_select="h263_decoder"
1634 msmpeg4v2_decoder_select="h263_decoder"
1635 msmpeg4v2_encoder_select="h263_encoder"
1636 msmpeg4v3_decoder_select="h263_decoder"
1637 msmpeg4v3_encoder_select="h263_encoder"
1638 mss2_decoder_select="error_resilience vc1_decoder"
1639 mxpeg_decoder_select="dsputil hpeldsp"
1640 nellymoser_decoder_select="mdct sinewin"
1641 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1642 nuv_decoder_select="dsputil lzo"
1643 png_decoder_select="dsputil zlib"
1644 png_encoder_select="dsputil zlib"
1645 prores_decoder_select="dsputil"
1646 prores_encoder_select="dsputil"
1647 qcelp_decoder_select="lsp"
1648 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1649 ra_144_encoder_select="audio_frame_queue lpc"
1650 ralf_decoder_select="golomb"
1651 rv10_decoder_select="error_resilience h263_decoder"
1652 rv10_encoder_select="h263_encoder"
1653 rv20_decoder_select="error_resilience h263_decoder"
1654 rv20_encoder_select="h263_encoder"
1655 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1656 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1657 shorten_decoder_select="golomb"
1658 sipr_decoder_select="lsp"
1659 sp5x_decoder_select="dsputil hpeldsp"
1660 svq1_decoder_select="hpeldsp"
1661 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1662 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1663 svq3_decoder_suggest="error_resilience zlib"
1664 tak_decoder_select="dsputil"
1665 theora_decoder_select="vp3_decoder"
1666 tiff_decoder_suggest="zlib"
1667 tiff_encoder_suggest="zlib"
1668 thp_decoder_select="dsputil hpeldsp"
1669 truehd_decoder_select="mlp_decoder"
1670 truemotion2_decoder_select="dsputil"
1671 truespeech_decoder_select="dsputil"
1672 tscc_decoder_select="zlib"
1673 twinvq_decoder_select="mdct lsp sinewin"
1674 utvideo_decoder_select="dsputil"
1675 utvideo_encoder_select="dsputil huffman"
1676 vble_decoder_select="dsputil"
1677 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1678 vc1image_decoder_select="vc1_decoder"
1679 vorbis_decoder_select="mdct"
1680 vorbis_encoder_select="mdct"
1681 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1682 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1683 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1684 vp6a_decoder_select="vp6_decoder"
1685 vp6f_decoder_select="vp6_decoder"
1686 vp8_decoder_select="h264pred videodsp"
1687 wmapro_decoder_select="mdct sinewin"
1688 wmav1_decoder_select="mdct sinewin"
1689 wmav1_encoder_select="mdct sinewin"
1690 wmav2_decoder_select="mdct sinewin"
1691 wmav2_encoder_select="mdct sinewin"
1692 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1693 wmv1_decoder_select="h263_decoder"
1694 wmv1_encoder_select="h263_encoder"
1695 wmv2_decoder_select="h263_decoder videodsp"
1696 wmv2_encoder_select="h263_encoder"
1697 wmv3_decoder_select="vc1_decoder"
1698 wmv3image_decoder_select="wmv3_decoder"
1699 zerocodec_decoder_select="zlib"
1700 zlib_decoder_select="zlib"
1701 zlib_encoder_select="zlib"
1702 zmbv_decoder_select="zlib"
1703 zmbv_encoder_select="zlib"
1704
1705 # hardware accelerators
1706 dxva2_deps="dxva2api_h"
1707 vaapi_deps="va_va_h"
1708 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1709 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1710 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1711
1712 h263_vaapi_hwaccel_deps="vaapi"
1713 h263_vaapi_hwaccel_select="h263_decoder"
1714 h263_vdpau_hwaccel_deps="vdpau"
1715 h263_vdpau_hwaccel_select="h263_decoder"
1716 h264_dxva2_hwaccel_deps="dxva2"
1717 h264_dxva2_hwaccel_select="h264_decoder"
1718 h264_vaapi_hwaccel_deps="vaapi"
1719 h264_vaapi_hwaccel_select="h264_decoder"
1720 h264_vda_hwaccel_deps="vda"
1721 h264_vda_hwaccel_select="h264_decoder"
1722 h264_vdpau_hwaccel_deps="vdpau"
1723 h264_vdpau_hwaccel_select="h264_decoder"
1724 mpeg1_vdpau_hwaccel_deps="vdpau"
1725 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1726 mpeg2_dxva2_hwaccel_deps="dxva2"
1727 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1728 mpeg2_vaapi_hwaccel_deps="vaapi"
1729 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1730 mpeg2_vdpau_hwaccel_deps="vdpau"
1731 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1732 mpeg4_vaapi_hwaccel_deps="vaapi"
1733 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1734 mpeg4_vdpau_hwaccel_deps="vdpau"
1735 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1736 vc1_dxva2_hwaccel_deps="dxva2"
1737 vc1_dxva2_hwaccel_select="vc1_decoder"
1738 vc1_vaapi_hwaccel_deps="vaapi"
1739 vc1_vaapi_hwaccel_select="vc1_decoder"
1740 vc1_vdpau_hwaccel_deps="vdpau"
1741 vc1_vdpau_hwaccel_select="vc1_decoder"
1742 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1743 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1744 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1745
1746 # parsers
1747 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1748 mpeg4video_parser_select="error_resilience mpegvideo"
1749 mpegvideo_parser_select="error_resilience mpegvideo"
1750 vc1_parser_select="mpegvideo"
1751
1752 # external libraries
1753 libfaac_encoder_deps="libfaac"
1754 libfaac_encoder_select="audio_frame_queue"
1755 libfdk_aac_encoder_deps="libfdk_aac"
1756 libfdk_aac_encoder_select="audio_frame_queue"
1757 libgsm_decoder_deps="libgsm"
1758 libgsm_encoder_deps="libgsm"
1759 libgsm_ms_decoder_deps="libgsm"
1760 libgsm_ms_encoder_deps="libgsm"
1761 libilbc_decoder_deps="libilbc"
1762 libilbc_encoder_deps="libilbc"
1763 libmp3lame_encoder_deps="libmp3lame"
1764 libmp3lame_encoder_select="audio_frame_queue"
1765 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1766 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1767 libopencore_amrnb_encoder_select="audio_frame_queue"
1768 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1769 libopenjpeg_decoder_deps="libopenjpeg"
1770 libopenjpeg_encoder_deps="libopenjpeg"
1771 libopus_decoder_deps="libopus"
1772 libopus_encoder_deps="libopus"
1773 libopus_encoder_select="audio_frame_queue"
1774 libschroedinger_decoder_deps="libschroedinger"
1775 libschroedinger_encoder_deps="libschroedinger"
1776 libspeex_decoder_deps="libspeex"
1777 libspeex_encoder_deps="libspeex"
1778 libspeex_encoder_select="audio_frame_queue"
1779 libtheora_encoder_deps="libtheora"
1780 libvo_aacenc_encoder_deps="libvo_aacenc"
1781 libvo_aacenc_encoder_select="audio_frame_queue"
1782 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1783 libvorbis_encoder_deps="libvorbis"
1784 libvorbis_encoder_select="audio_frame_queue"
1785 libvpx_vp8_decoder_deps="libvpx"
1786 libvpx_vp8_encoder_deps="libvpx"
1787 libvpx_vp9_decoder_deps="libvpx"
1788 libvpx_vp9_encoder_deps="libvpx"
1789 libwavpack_encoder_deps="libwavpack"
1790 libx264_encoder_deps="libx264"
1791 libxavs_encoder_deps="libxavs"
1792 libxvid_encoder_deps="libxvid"
1793
1794 # demuxers / muxers
1795 ac3_demuxer_select="ac3_parser"
1796 asf_demuxer_select="riffdec"
1797 asf_muxer_select="riffenc"
1798 asf_stream_muxer_select="asf_muxer"
1799 avi_demuxer_select="riffdec"
1800 avi_muxer_select="riffenc"
1801 avisynth_demuxer_deps="avisynth"
1802 avisynth_demuxer_select="riffdec"
1803 caf_demuxer_select="riffdec"
1804 dirac_demuxer_select="dirac_parser"
1805 dxa_demuxer_select="riffdec"
1806 eac3_demuxer_select="ac3_parser"
1807 flac_demuxer_select="flac_parser"
1808 ipod_muxer_select="mov_muxer"
1809 ismv_muxer_select="mov_muxer"
1810 matroska_audio_muxer_select="matroska_muxer"
1811 matroska_demuxer_select="riffdec"
1812 matroska_demuxer_suggest="bzlib lzo zlib"
1813 matroska_muxer_select="riffenc"
1814 mmf_muxer_select="riffenc"
1815 mov_demuxer_select="riffdec"
1816 mov_demuxer_suggest="zlib"
1817 mov_muxer_select="riffenc rtpenc_chain"
1818 mp3_demuxer_select="mpegaudio_parser"
1819 mp4_muxer_select="mov_muxer"
1820 mpegts_muxer_select="adts_muxer latm_muxer"
1821 mpegtsraw_demuxer_select="mpegts_demuxer"
1822 mxf_d10_muxer_select="mxf_muxer"
1823 nut_muxer_select="riffenc"
1824 nuv_demuxer_select="riffdec"
1825 ogg_demuxer_select="golomb"
1826 psp_muxer_select="mov_muxer"
1827 rtp_demuxer_select="sdp_demuxer"
1828 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1829 rtsp_demuxer_select="http_protocol rtpdec"
1830 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1831 sap_demuxer_select="sdp_demuxer"
1832 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1833 sdp_demuxer_select="rtpdec"
1834 smoothstreaming_muxer_select="ismv_muxer"
1835 spdif_muxer_select="aac_parser"
1836 tak_demuxer_select="tak_parser"
1837 tg2_muxer_select="mov_muxer"
1838 tgp_muxer_select="mov_muxer"
1839 w64_demuxer_deps="wav_demuxer"
1840 wav_demuxer_select="riffdec"
1841 wav_muxer_select="riffenc"
1842 webm_muxer_select="riffenc"
1843 wtv_demuxer_select="riffdec"
1844 xmv_demuxer_select="riffdec"
1845 xwma_demuxer_select="riffdec"
1846
1847 # indevs / outdevs
1848 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1849 alsa_outdev_deps="alsa_asoundlib_h"
1850 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1851 dv1394_indev_deps="dv1394 dv_demuxer"
1852 fbdev_indev_deps="linux_fb_h"
1853 jack_indev_deps="jack_jack_h pthreads"
1854 libcdio_indev_deps="libcdio"
1855 libdc1394_indev_deps="libdc1394"
1856 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1857 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1858 pulse_indev_deps="libpulse"
1859 sndio_indev_deps="sndio_h"
1860 sndio_outdev_deps="sndio_h"
1861 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1862 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1863 vfwcap_indev_extralibs="-lavicap32"
1864 x11grab_indev_deps="x11grab XShmCreateImage"
1865
1866 # protocols
1867 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1868 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1869 ffrtmpcrypt_protocol_select="tcp_protocol"
1870 ffrtmphttp_protocol_deps="!librtmp_protocol"
1871 ffrtmphttp_protocol_select="http_protocol"
1872 gopher_protocol_select="network"
1873 httpproxy_protocol_select="tcp_protocol"
1874 http_protocol_select="tcp_protocol"
1875 https_protocol_select="tls_protocol"
1876 librtmp_protocol_deps="librtmp"
1877 librtmpe_protocol_deps="librtmp"
1878 librtmps_protocol_deps="librtmp"
1879 librtmpt_protocol_deps="librtmp"
1880 librtmpte_protocol_deps="librtmp"
1881 mmsh_protocol_select="http_protocol"
1882 mmst_protocol_select="network"
1883 rtmp_protocol_deps="!librtmp_protocol"
1884 rtmp_protocol_select="tcp_protocol"
1885 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1886 rtmps_protocol_deps="!librtmp_protocol"
1887 rtmps_protocol_select="tls_protocol"
1888 rtmpt_protocol_select="ffrtmphttp_protocol"
1889 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1890 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1891 rtp_protocol_select="udp_protocol"
1892 sctp_protocol_deps="struct_sctp_event_subscribe"
1893 sctp_protocol_select="network"
1894 srtp_protocol_select="rtp_protocol"
1895 tcp_protocol_select="network"
1896 tls_protocol_deps_any="openssl gnutls"
1897 tls_protocol_select="tcp_protocol"
1898 udp_protocol_select="network"
1899 unix_protocol_deps="sys_un_h"
1900 unix_protocol_select="network"
1901
1902 # filters
1903 blackframe_filter_deps="gpl"
1904 boxblur_filter_deps="gpl"
1905 cropdetect_filter_deps="gpl"
1906 delogo_filter_deps="gpl"
1907 drawtext_filter_deps="libfreetype"
1908 frei0r_filter_deps="frei0r dlopen strtok_r"
1909 frei0r_filter_extralibs='$ldl'
1910 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1911 frei0r_src_filter_extralibs='$ldl'
1912 hqdn3d_filter_deps="gpl"
1913 interlace_filter_deps="gpl"
1914 resample_filter_deps="avresample"
1915 ocv_filter_deps="libopencv"
1916 scale_filter_deps="swscale"
1917 yadif_filter_deps="gpl"
1918
1919 # libraries
1920 avcodec_deps="avutil"
1921 avdevice_deps="avutil avcodec avformat"
1922 avfilter_deps="avutil"
1923 avformat_deps="avutil avcodec"
1924 avresample_deps="avutil"
1925 swscale_deps="avutil"
1926
1927 # programs
1928 avconv_deps="avcodec avfilter avformat avresample swscale"
1929 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1930 fps_filter null_filter resample_filter scale_filter
1931 setpts_filter trim_filter"
1932 avplay_deps="avcodec avformat avresample swscale sdl"
1933 avplay_select="rdft"
1934 avprobe_deps="avcodec avformat"
1935 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1936 avserver_extralibs='$ldl'
1937
1938 doc_deps="texi2html"
1939
1940 # default parameters
1941
1942 logfile="config.log"
1943
1944 # installation paths
1945 prefix_default="/usr/local"
1946 bindir_default='${prefix}/bin'
1947 datadir_default='${prefix}/share/avconv'
1948 incdir_default='${prefix}/include'
1949 libdir_default='${prefix}/lib'
1950 mandir_default='${prefix}/share/man'
1951 shlibdir_default="$libdir_default"
1952
1953 # toolchain
1954 ar_default="ar"
1955 cc_default="gcc"
1956 host_cc_default="gcc"
1957 cp_f="cp -f"
1958 ln_s="ln -s -f"
1959 nm_default="nm -g"
1960 objformat="elf"
1961 pkg_config_default=pkg-config
1962 ranlib="ranlib"
1963 yasmexe="yasm"
1964
1965 nogas=":"
1966
1967 # machine
1968 arch_default=$(uname -m)
1969 cpu="generic"
1970
1971 # OS
1972 target_os_default=$(tolower $(uname -s))
1973 host_os=$target_os_default
1974
1975 # configurable options
1976 enable $LIBRARY_LIST $PROGRAM_LIST
1977
1978 enable asm
1979 enable debug
1980 enable doc
1981 enable optimizations
1982 enable safe_bitstream_reader
1983 enable static
1984 enable swscale_alpha
1985
1986 # By default, enable only those hwaccels that have no external dependencies.
1987 enable dxva2 vdpau
1988
1989 # build settings
1990 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1991 LIBPREF="lib"
1992 LIBSUF=".a"
1993 FULLNAME='$(NAME)$(BUILDSUF)'
1994 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1995 SLIBPREF="lib"
1996 SLIBSUF=".so"
1997 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1998 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1999 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2000 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2001 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2002 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2003
2004 asflags_filter=echo
2005 cflags_filter=echo
2006 ldflags_filter=echo
2007
2008 AS_C='-c'
2009 AS_O='-o $@'
2010 CC_C='-c'
2011 CC_E='-E -o $@'
2012 CC_O='-o $@'
2013 LD_O='-o $@'
2014 LD_LIB='-l%'
2015 LD_PATH='-L'
2016 HOSTCC_C='-c'
2017 HOSTCC_O='-o $@'
2018 HOSTLD_O='-o $@'
2019
2020 host_cflags='-O3 -g'
2021 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2022 host_libs='-lm'
2023 host_cflags_filter=echo
2024 host_ldflags_filter=echo
2025
2026 target_path='$(CURDIR)'
2027
2028 # since the object filename is not given with the -MM flag, the compiler
2029 # is only able to print the basename, and we must add the path ourselves
2030 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2031 DEPFLAGS='-MM'
2032
2033 # find source path
2034 if test -f configure; then
2035 source_path=.
2036 else
2037 source_path=$(cd $(dirname "$0"); pwd)
2038 echo "$source_path" | grep -q '[[:blank:]]' &&
2039 die "Out of tree builds are impossible with whitespace in source path."
2040 test -e "$source_path/config.h" &&
2041 die "Out of tree builds are impossible with config.h in source dir."
2042 fi
2043
2044 for v in "$@"; do
2045 r=${v#*=}
2046 l=${v%"$r"}
2047 r=$(sh_quote "$r")
2048 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2049 done
2050
2051 find_things(){
2052 thing=$1
2053 pattern=$2
2054 file=$source_path/$3
2055 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2056 }
2057
2058 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2059 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2060 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2061 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2062 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2063 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2064 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2065 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2066 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2067 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2068 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2069
2070 ALL_COMPONENTS="
2071 $BSF_LIST
2072 $DECODER_LIST
2073 $DEMUXER_LIST
2074 $ENCODER_LIST
2075 $FILTER_LIST
2076 $HWACCEL_LIST
2077 $INDEV_LIST
2078 $MUXER_LIST
2079 $OUTDEV_LIST
2080 $PARSER_LIST
2081 $PROTOCOL_LIST
2082 "
2083
2084 for n in $COMPONENT_LIST; do
2085 v=$(toupper ${n%s})_LIST
2086 eval enable \$$v
2087 eval ${n}_if_any="\$$v"
2088 done
2089
2090 enable $ARCH_EXT_LIST
2091
2092 die_unknown(){
2093 echo "Unknown option \"$1\"."
2094 echo "See $0 --help for available options."
2095 exit 1
2096 }
2097
2098 print_3_columns() {
2099 cat | tr ' ' '\n' | sort | pr -r -3 -t
2100 }
2101
2102 show_list() {
2103 suffix=_$1
2104 shift
2105 echo $* | sed s/$suffix//g | print_3_columns
2106 exit 0
2107 }
2108
2109 rand_list(){
2110 IFS=', '
2111 set -- $*
2112 unset IFS
2113 for thing; do
2114 comp=${thing%:*}
2115 prob=${thing#$comp}
2116 prob=${prob#:}
2117 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2118 echo "prob ${prob:-0.5}"
2119 printf '%s\n' $comp
2120 done
2121 }
2122
2123 do_random(){
2124 action=$1
2125 shift
2126 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2127 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2128 }
2129
2130 for opt do
2131 optval="${opt#*=}"
2132 case "$opt" in
2133 --extra-ldflags=*)
2134 add_ldflags $optval
2135 ;;
2136 --extra-libs=*)
2137 add_extralibs $optval
2138 ;;
2139 --disable-devices)
2140 disable $INDEV_LIST $OUTDEV_LIST
2141 ;;
2142 --enable-debug=*)
2143 debuglevel="$optval"
2144 ;;
2145 --disable-programs)
2146 disable $PROGRAM_LIST
2147 ;;
2148 --disable-everything)
2149 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2150 ;;
2151 --disable-all)
2152 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2153 disable $LIBRARY_LIST $PROGRAM_LIST doc
2154 ;;
2155 --enable-random|--disable-random)
2156 action=${opt%%-random}
2157 do_random ${action#--} $COMPONENT_LIST
2158 ;;
2159 --enable-random=*|--disable-random=*)
2160 action=${opt%%-random=*}
2161 do_random ${action#--} $optval
2162 ;;
2163 --enable-*=*|--disable-*=*)
2164 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2165 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2166 eval list=\$$(toupper $thing)_LIST
2167 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2168 $action $(filter "$name" $list)
2169 ;;
2170 --enable-?*|--disable-?*)
2171 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2172 if is_in $option $COMPONENT_LIST; then
2173 test $action = disable && action=unset
2174 eval $action \$$(toupper ${option%s})_LIST
2175 elif is_in $option $CMDLINE_SELECT; then
2176 $action $option
2177 else
2178 die_unknown $opt
2179 fi
2180 ;;
2181 --list-*)
2182 NAME="${opt#--list-}"
2183 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2184 NAME=${NAME%s}
2185 eval show_list $NAME \$$(toupper $NAME)_LIST
2186 ;;
2187 --help|-h) show_help
2188 ;;
2189 *)
2190 optname="${opt%%=*}"
2191 optname="${optname#--}"
2192 optname=$(echo "$optname" | sed 's/-/_/g')
2193 if is_in $optname $CMDLINE_SET; then
2194 eval $optname='$optval'
2195 elif is_in $optname $CMDLINE_APPEND; then
2196 append $optname "$optval"
2197 else
2198 die_unknown $opt
2199 fi
2200 ;;
2201 esac
2202 done
2203
2204 disabled logging && logfile=/dev/null
2205
2206 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2207 set >> $logfile
2208
2209 test -n "$cross_prefix" && enable cross_compile
2210
2211 if enabled cross_compile; then
2212 test -n "$arch" && test -n "$target_os" ||
2213 die "Must specify target arch and OS when cross-compiling"
2214 fi
2215
2216 ar_default="${cross_prefix}${ar_default}"
2217 cc_default="${cross_prefix}${cc_default}"
2218 nm_default="${cross_prefix}${nm_default}"
2219 pkg_config_default="${cross_prefix}${pkg_config_default}"
2220 ranlib="${cross_prefix}${ranlib}"
2221
2222 sysinclude_default="${sysroot}/usr/include"
2223
2224 case "$toolchain" in
2225 clang-asan)
2226 cc_default="clang"
2227 add_cflags -fsanitize=address
2228 add_ldflags -fsanitize=address
2229 ;;
2230 clang-tsan)
2231 cc_default="clang"
2232 add_cflags -fsanitize=thread -pie
2233 add_ldflags -fsanitize=thread -pie
2234 ;;
2235 gcc-asan)
2236 cc_default="gcc"
2237 add_cflags -fsanitize=address
2238 add_ldflags -fsanitize=address
2239 ;;
2240 gcc-tsan)
2241 cc_default="gcc"
2242 add_cflags -fsanitize=thread -pie -fPIC
2243 add_ldflags -fsanitize=thread -pie -fPIC
2244 ;;
2245 valgrind-massif)
2246 target_exec_default="valgrind"
2247 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2248 ;;
2249 valgrind-memcheck)
2250 target_exec_default="valgrind"
2251 target_exec_args="--track-origins=yes --leak-check=full"
2252 ;;
2253 msvc)
2254 cc_default="c99wrap cl"
2255 ld_default="c99wrap link"
2256 nm_default="dumpbin -symbols"
2257 ar_default="lib"
2258 target_os_default="win32"
2259 ;;
2260 icl)
2261 cc_default="c99wrap -noconv icl"
2262 ld_default="c99wrap xilink"
2263 nm_default="dumpbin -symbols"
2264 ar_default="xilib"
2265 target_os_default="win32"
2266 ;;
2267 gcov)
2268 add_cflags -fprofile-arcs -ftest-coverage
2269 add_ldflags -fprofile-arcs -ftest-coverage
2270 ;;
2271 ?*)
2272 die "Unknown toolchain $toolchain"
2273 ;;
2274 esac
2275
2276 set_default arch cc pkg_config sysinclude target_exec target_os
2277 enabled cross_compile || host_cc_default=$cc
2278 set_default host_cc
2279
2280 if ! $pkg_config --version >/dev/null 2>&1; then
2281 warn "$pkg_config not found, library detection may fail."
2282 pkg_config=false
2283 fi
2284
2285 exesuf() {
2286 case $1 in
2287 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2288 esac
2289 }
2290
2291 EXESUF=$(exesuf $target_os)
2292 HOSTEXESUF=$(exesuf $host_os)
2293
2294 # set temporary file name
2295 : ${TMPDIR:=$TEMPDIR}
2296 : ${TMPDIR:=$TMP}
2297 : ${TMPDIR:=/tmp}
2298
2299 if ! check_cmd mktemp -u XXXXXX; then
2300 # simple replacement for missing mktemp
2301 # NOT SAFE FOR GENERAL USE
2302 mktemp(){
2303 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2304 }
2305 fi
2306
2307 tmpfile(){
2308 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2309 (set -C; exec > $tmp) 2>/dev/null ||
2310 die "Unable to create temporary file in $TMPDIR."
2311 append TMPFILES $tmp
2312 eval $1=$tmp
2313 }
2314
2315 trap 'rm -f -- $TMPFILES' EXIT
2316
2317 tmpfile TMPASM .asm
2318 tmpfile TMPC .c
2319 tmpfile TMPE $EXESUF
2320 tmpfile TMPH .h
2321 tmpfile TMPO .o
2322 tmpfile TMPS .S
2323 tmpfile TMPSH .sh
2324 tmpfile TMPV .ver
2325
2326 unset -f mktemp
2327
2328 chmod +x $TMPE
2329
2330 # make sure we can execute files in $TMPDIR
2331 cat > $TMPSH 2>> $logfile <<EOF
2332 #! /bin/sh
2333 EOF
2334 chmod +x $TMPSH >> $logfile 2>&1
2335 if ! $TMPSH >> $logfile 2>&1; then
2336 cat <<EOF
2337 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2338 variable to another directory and make sure that it is not mounted noexec.
2339 EOF
2340 die "Sanity test failed."
2341 fi
2342
2343 ccc_flags(){
2344 for flag; do
2345 case $flag in
2346 -std=c99) echo -c99 ;;
2347 -mcpu=*) echo -arch ${flag#*=} ;;
2348 -mieee) echo -ieee ;;
2349 -O*|-fast) echo $flag ;;
2350 -fno-math-errno) echo -assume nomath_errno ;;
2351 -g) echo -g3 ;;
2352 -Wall) echo -msg_enable level2 ;;
2353 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2354 -Wl,*) echo $flag ;;
2355 -f*|-W*) ;;
2356 *) echo $flag ;;
2357 esac
2358 done
2359 }
2360
2361 msvc_common_flags(){
2362 for flag; do
2363 case $flag in
2364 # In addition to specifying certain flags under the compiler
2365 # specific filters, they must be specified here as well or else the
2366 # generic catch all at the bottom will print the original flag.
2367 -Wall) ;;
2368 -std=c99) ;;
2369 # Common flags
2370 -fomit-frame-pointer) ;;
2371 -g) echo -Z7 ;;
2372 -fno-math-errno) ;;
2373 -fno-common) ;;
2374 -fno-signed-zeros) ;;
2375 -fPIC) ;;
2376 -mthumb) ;;
2377 -march=*) ;;
2378 -lz) echo zlib.lib ;;
2379 -lavifil32) echo vfw32.lib ;;
2380 -lavicap32) echo vfw32.lib user32.lib ;;
2381 -l*) echo ${flag#-l}.lib ;;
2382 *) echo $flag ;;
2383 esac
2384 done
2385 }
2386
2387 msvc_flags(){
2388 msvc_common_flags "$@"
2389 for flag; do
2390 case $flag in
2391 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2392 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2393 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2394 -wd4996 -wd4273 ;;
2395 esac
2396 done
2397 }
2398
2399 icl_flags(){
2400 msvc_common_flags "$@"
2401 for flag; do
2402 case $flag in
2403 # Despite what Intel's documentation says -Wall, which is supported
2404 # on Windows, does enable remarks so disable them here.
2405 -Wall) echo $flag -Qdiag-disable:remark ;;
2406 -std=c99) echo -Qstd=c99 ;;
2407 esac
2408 done
2409 }
2410
2411 pgi_flags(){
2412 for flag; do
2413 case $flag in
2414 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2415 -fomit-frame-pointer) echo -Mnoframe ;;
2416 -g) echo -gopt ;;
2417 *) echo $flag ;;
2418 esac
2419 done
2420 }
2421
2422 suncc_flags(){
2423 for flag; do
2424 case $flag in
2425 -march=*|-mcpu=*)
2426 case "${flag#*=}" in
2427 native) echo -xtarget=native ;;
2428 v9|niagara) echo -xarch=sparc ;;
2429 ultrasparc) echo -xarch=sparcvis ;;
2430 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2431 i586|pentium) echo -xchip=pentium ;;
2432 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2433 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2434 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2435 pentium4*) echo -xtarget=pentium4 ;;
2436 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2437 *-sse3) echo -xarch=sse3 ;;
2438 core2) echo -xarch=ssse3 -xchip=core2 ;;
2439 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2440 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2441 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2442 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2443 k8|opteron|athlon64|athlon-fx)
2444 echo -xarch=sse2a ;;
2445 athlon*) echo -xarch=pentium_proa ;;
2446 esac
2447 ;;
2448 -std=c99) echo -xc99 ;;
2449 -fomit-frame-pointer) echo -xregs=frameptr ;;
2450 -fPIC) echo -KPIC -xcode=pic32 ;;
2451 -W*,*) echo $flag ;;
2452 -f*-*|-W*|-mimpure-text) ;;
2453 -shared) echo -G ;;
2454 *) echo $flag ;;
2455 esac
2456 done
2457 }
2458
2459 tms470_flags(){
2460 for flag; do
2461 case $flag in
2462 -march=*|-mcpu=*)
2463 case "${flag#*=}" in
2464 armv7-a|cortex-a*) echo -mv=7a8 ;;
2465 armv7-r|cortex-r*) echo -mv=7r4 ;;
2466 armv7-m|cortex-m*) echo -mv=7m3 ;;
2467 armv6*|arm11*) echo -mv=6 ;;
2468 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2469 echo -mv=5e ;;
2470 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2471 esac
2472 ;;
2473 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2474 -mfpu=vfp) echo --float_support=vfpv2 ;;
2475 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2476 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2477 -msoft-float) echo --float_support=vfplib ;;
2478 -O[0-3]|-mf=*) echo $flag ;;
2479 -g) echo -g -mn ;;
2480 -pds=*) echo $flag ;;
2481 -D*|-I*) echo $flag ;;
2482 --gcc|--abi=*) echo $flag ;;
2483 -me) echo $flag ;;
2484 esac
2485 done
2486 }
2487
2488 probe_cc(){
2489 pfx=$1
2490 _cc=$2
2491
2492 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2493 unset _ld_o _ldflags _ld_lib _ld_path
2494 unset _depflags _DEPCMD _DEPFLAGS
2495 _flags_filter=echo
2496
2497 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2498 _type=llvm_gcc
2499 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2500 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2501 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2502 _cflags_speed='-O3'
2503 _cflags_size='-Os'
2504 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2505 _type=gcc
2506 gcc_version=$($_cc --version | head -n1)
2507 gcc_basever=$($_cc -dumpversion)
2508 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2509 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2510 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2511 if ! $_cc -dumpversion | grep -q '^2\.'; then
2512 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2513 fi
2514 _cflags_speed='-O3'
2515 _cflags_size='-Os'
2516 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2517 _type=icc
2518 _ident=$($_cc --version | head -n1)
2519 _depflags='-MMD'
2520 _cflags_speed='-O3'
2521 _cflags_size='-Os'
2522 _cflags_noopt='-O1'
2523 elif $_cc -v 2>&1 | grep -q xlc; then
2524 _type=xlc
2525 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2526 _cflags_speed='-O5'
2527 _cflags_size='-O5 -qcompact'
2528 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2529 _type=ccc
2530 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2531 _DEPFLAGS='-M'
2532 _cflags_speed='-fast'
2533 _cflags_size='-O1'
2534 _flags_filter=ccc_flags
2535 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2536 test -d "$sysroot" || die "No valid sysroot specified."
2537 _type=armcc
2538 _ident=$($_cc --vsn | head -n1)
2539 armcc_conf="$PWD/armcc.conf"
2540 $_cc --arm_linux_configure \
2541 --arm_linux_config_file="$armcc_conf" \
2542 --configure_sysroot="$sysroot" \
2543 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2544 die "Error creating armcc configuration file."
2545 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2546 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2547 as_default="${cross_prefix}gcc"
2548 _depflags='-MMD'
2549 _cflags_speed='-O3'
2550 _cflags_size='-Os'
2551 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2552 _type=tms470
2553 _ident=$($_cc -version | head -n1 | tr -s ' ')
2554 _flags='--gcc --abi=eabi -me'
2555 _cc_e='-ppl -fe=$@'
2556 _cc_o='-fe=$@'
2557 _depflags='-ppa -ppd=$(@:.o=.d)'
2558 _cflags_speed='-O3 -mf=5'
2559 _cflags_size='-O3 -mf=2'
2560 _flags_filter=tms470_flags
2561 elif $_cc -v 2>&1 | grep -q clang; then
2562 _type=clang
2563 _ident=$($_cc --version | head -n1)
2564 _depflags='-MMD'
2565 _cflags_speed='-O3'
2566 _cflags_size='-Os'
2567 elif $_cc -V 2>&1 | grep -q Sun; then
2568 _type=suncc
2569 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2570 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2571 _DEPFLAGS='-xM1 -xc99'
2572 _ldflags='-std=c99'
2573 _cflags_speed='-O5'
2574 _cflags_size='-O5 -xspace'
2575 _flags_filter=suncc_flags
2576 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2577 _type=pathscale
2578 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2579 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2580 _cflags_speed='-O2'
2581 _cflags_size='-Os'
2582 _flags_filter='filter_out -Wdisabled-optimization'
2583 elif $_cc -v 2>&1 | grep -q Open64; then
2584 _type=open64
2585 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2586 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2587 _cflags_speed='-O2'
2588 _cflags_size='-Os'
2589 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2590 elif $_cc -V 2>&1 | grep -q Portland; then
2591 _type=pgi
2592 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2593 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2594 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2595 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2596 _cflags_noopt="-O1"
2597 _flags_filter=pgi_flags
2598 elif $_cc 2>&1 | grep -q Microsoft; then
2599 _type=msvc
2600 _ident=$($cc 2>&1 | head -n1)
2601 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2602 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2603 _cflags_speed="-O2"
2604 _cflags_size="-O1"
2605 # Nonstandard output options, to avoid msys path conversion issues.
2606 # Relies on wrapper to remap it.
2607 if $_cc 2>&1 | grep -q Linker; then
2608 _ld_o='-out $@'
2609 else
2610 _ld_o='-Fe$@'
2611 fi
2612 _cc_o='-Fo $@'
2613 _cc_e='-P -Fi $@'
2614 _flags_filter=msvc_flags
2615 _ld_lib='lib%.a'
2616 _ld_path='-libpath:'
2617 _flags='-nologo'
2618 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2619 if [ $pfx = hostcc ]; then
2620 append _cflags -Dsnprintf=_snprintf
2621 fi
2622 elif $_cc 2>&1 | grep -q Intel; then
2623 _type=icl
2624 _ident=$($cc 2>&1 | head -n1)
2625 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2626 # Not only is O3 broken on 13.x+ but it is slower on all previous
2627 # versions (tested) as well.
2628 _cflags_speed="-O2"
2629 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2630 # Nonstandard output options, to avoid msys path conversion issues.
2631 # Relies on wrapper to remap it.
2632 if $_cc 2>&1 | grep -q Linker; then
2633 _ld_o='-out $@'
2634 else
2635 _ld_o='-Fe$@'
2636 fi
2637 _cc_o='-Fo $@'
2638 _cc_e='-P'
2639 _flags_filter=icl_flags
2640 _ld_lib='lib%.a'
2641 _ld_path='-libpath:'
2642 # -Qdiag-error to make icl error when seeing certain unknown arguments
2643 _flags='-nologo -Qdiag-error:4044,10157'
2644 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2645 # with MSVC which enables it by default.
2646 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2647 if [ $pfx = hostcc ]; then
2648 append _cflags -Dsnprintf=_snprintf
2649 fi
2650 fi
2651
2652 eval ${pfx}_type=\$_type
2653 eval ${pfx}_ident=\$_ident
2654 }
2655
2656 set_ccvars(){
2657 eval ${1}_C=\${_cc_c-\${${1}_C}}
2658 eval ${1}_E=\${_cc_e-\${${1}_E}}
2659 eval ${1}_O=\${_cc_o-\${${1}_O}}
2660
2661 if [ -n "$_depflags" ]; then
2662 eval ${1}_DEPFLAGS=\$_depflags
2663 else
2664 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2665 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2666 eval DEP${1}FLAGS=\$_flags
2667 fi
2668 }
2669
2670 probe_cc cc "$cc"
2671 cflags_filter=$_flags_filter
2672 cflags_speed=$_cflags_speed
2673 cflags_size=$_cflags_size
2674 cflags_noopt=$_cflags_noopt
2675 add_cflags $_flags $_cflags
2676 cc_ldflags=$_ldflags
2677 set_ccvars CC
2678
2679 probe_cc hostcc "$host_cc"
2680 host_cflags_filter=$_flags_filter
2681 add_host_cflags $_flags $_cflags
2682 set_ccvars HOSTCC
2683
2684 test -n "$cc_type" && enable $cc_type ||
2685 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2686
2687 : ${as_default:=$cc}
2688 : ${dep_cc_default:=$cc}
2689 : ${ld_default:=$cc}
2690 : ${host_ld_default:=$host_cc}
2691 set_default ar as dep_cc ld host_ld
2692
2693 probe_cc as "$as"
2694 asflags_filter=$_flags_filter
2695 add_asflags $_flags $_cflags
2696 set_ccvars AS
2697
2698 probe_cc ld "$ld"
2699 ldflags_filter=$_flags_filter
2700 add_ldflags $_flags $_ldflags
2701 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2702 LD_O=${_ld_o-$LD_O}
2703 LD_LIB=${_ld_lib-$LD_LIB}
2704 LD_PATH=${_ld_path-$LD_PATH}
2705
2706 probe_cc hostld "$host_ld"
2707 host_ldflags_filter=$_flags_filter
2708 add_host_ldflags $_flags $_ldflags
2709 HOSTLD_O=${_ld_o-$HOSTLD_O}
2710
2711 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2712 probe_cc depcc "$dep_cc"
2713 CCDEP=${_DEPCMD:-$DEPCMD}
2714 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2715 DEPCCFLAGS=$_flags
2716 fi
2717
2718 if $ar 2>&1 | grep -q Microsoft; then
2719 arflags="-nologo"
2720 ar_o='-out:$@'
2721 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2722 arflags="rq"
2723 ar_o='$@'
2724 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2725 arflags='-Xany -r -c'
2726 ar_o='$@'
2727 else
2728 arflags="rc"
2729 ar_o='$@'
2730 fi
2731
2732 add_cflags $extra_cflags
2733 add_asflags $extra_cflags
2734
2735 if test -n "$sysroot"; then
2736 case "$cc_type" in
2737 gcc|llvm_gcc|clang)
2738 add_cppflags --sysroot="$sysroot"
2739 add_ldflags --sysroot="$sysroot"
2740 ;;
2741 tms470)
2742 add_cppflags -I"$sysinclude"
2743 add_ldflags --sysroot="$sysroot"
2744 ;;
2745 esac
2746 fi
2747
2748 if test "$cpu" = host; then
2749 enabled cross_compile &&
2750 die "--cpu=host makes no sense when cross-compiling."
2751
2752 case "$cc_type" in
2753 gcc|llvm_gcc)
2754 check_native(){
2755 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2756 sed -n "/cc1.*$1=/{
2757 s/.*$1=\\([^ ]*\\).*/\\1/
2758 p
2759 q
2760 }" $TMPE
2761 }
2762 cpu=$(check_native -march || check_native -mcpu)
2763 ;;
2764 esac
2765
2766 test "${cpu:-host}" = host &&
2767 die "--cpu=host not supported with compiler $cc"
2768 fi
2769
2770 # Deal with common $arch aliases
2771 case "$arch" in
2772 aarch64|arm64)
2773 arch="aarch64"
2774 ;;
2775 arm*)
2776 arch="arm"
2777 ;;
2778 mips*|IP*)
2779 arch="mips"
2780 ;;
2781 parisc*|hppa*)
2782 arch="parisc"
2783 ;;
2784 "Power Macintosh"|ppc*|powerpc*)
2785 arch="ppc"
2786 ;;
2787 s390|s390x)
2788 arch="s390"
2789 ;;
2790 sh4|sh)
2791 arch="sh4"
2792 ;;
2793 sun4u|sparc*)
2794 arch="sparc"
2795 ;;
2796 tilegx|tile-gx)
2797 arch="tilegx"
2798 ;;
2799 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2800 arch="x86"
2801 ;;
2802 esac
2803
2804 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2805 enable $arch
2806
2807 # Add processor-specific flags
2808 if enabled aarch64; then
2809
2810 case $cpu in
2811 armv*)
2812 cpuflags="-march=$cpu"
2813 ;;
2814 *)
2815 cpuflags="-mcpu=$cpu"
2816 ;;
2817 esac
2818
2819 elif enabled alpha; then
2820
2821 cpuflags="-mcpu=$cpu"
2822
2823 elif enabled arm; then
2824
2825 check_arm_arch() {
2826 check_cpp_condition stddef.h \
2827 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2828 $cpuflags
2829 }
2830
2831 probe_arm_arch() {
2832 if check_arm_arch 4; then echo armv4;
2833 elif check_arm_arch 4T; then echo armv4t;
2834 elif check_arm_arch 5; then echo armv5;
2835 elif check_arm_arch 5E; then echo armv5e;
2836 elif check_arm_arch 5T; then echo armv5t;
2837 elif check_arm_arch 5TE; then echo armv5te;
2838 elif check_arm_arch 5TEJ; then echo armv5te;
2839 elif check_arm_arch 6; then echo armv6;
2840 elif check_arm_arch 6J; then echo armv6j;
2841 elif check_arm_arch 6K; then echo armv6k;
2842 elif check_arm_arch 6Z; then echo armv6z;
2843 elif check_arm_arch 6ZK; then echo armv6zk;
2844 elif check_arm_arch 6T2; then echo armv6t2;
2845 elif check_arm_arch 7; then echo armv7;
2846 elif check_arm_arch 7A 7_A; then echo armv7-a;
2847 elif check_arm_arch 7R 7_R; then echo armv7-r;
2848 elif check_arm_arch 7M 7_M; then echo armv7-m;
2849 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2850 elif check_arm_arch 8A 8_A; then echo armv8-a;
2851 fi
2852 }
2853
2854 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2855
2856 case $cpu in
2857 armv*)
2858 cpuflags="-march=$cpu"
2859 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2860 ;;
2861 *)
2862 cpuflags="-mcpu=$cpu"
2863 case $cpu in
2864 cortex-a*) subarch=armv7a ;;
2865 cortex-r*) subarch=armv7r ;;
2866 cortex-m*) enable thumb; subarch=armv7m ;;
2867 arm11*) subarch=armv6 ;;
2868 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2869 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2870 *) subarch=$(probe_arm_arch) ;;
2871 esac
2872 ;;
2873 esac
2874
2875 case "$subarch" in
2876 armv5t*) enable fast_clz ;;
2877 armv[6-8]*) enable fast_clz fast_unaligned ;;
2878 esac
2879
2880 elif enabled avr32; then
2881
2882 case $cpu in
2883 ap7[02]0[0-2])
2884 subarch="avr32_ap"
2885 cpuflags="-mpart=$cpu"
2886 ;;
2887 ap)
2888 subarch="avr32_ap"
2889 cpuflags="-march=$cpu"
2890 ;;
2891 uc3[ab]*)
2892 subarch="avr32_uc"
2893 cpuflags="-mcpu=$cpu"
2894 ;;
2895 uc)
2896 subarch="avr32_uc"
2897 cpuflags="-march=$cpu"
2898 ;;
2899 esac
2900
2901 elif enabled bfin; then
2902
2903 cpuflags="-mcpu=$cpu"
2904
2905 elif enabled mips; then
2906
2907 cpuflags="-march=$cpu"
2908
2909 elif enabled ppc; then
2910
2911 case $(tolower $cpu) in
2912 601|ppc601|powerpc601)
2913 cpuflags="-mcpu=601"
2914 disable altivec
2915 ;;
2916 603*|ppc603*|powerpc603*)
2917 cpuflags="-mcpu=603"
2918 disable altivec
2919 ;;
2920 604*|ppc604*|powerpc604*)
2921 cpuflags="-mcpu=604"
2922 disable altivec
2923 ;;
2924 g3|75*|ppc75*|powerpc75*)
2925 cpuflags="-mcpu=750"
2926 disable altivec
2927 ;;
2928 g4|745*|ppc745*|powerpc745*)
2929 cpuflags="-mcpu=7450"
2930 ;;
2931 74*|ppc74*|powerpc74*)
2932 cpuflags="-mcpu=7400"
2933 ;;
2934 g5|970|ppc970|powerpc970)
2935 cpuflags="-mcpu=970"
2936 ;;
2937 power[3-7]*)
2938 cpuflags="-mcpu=$cpu"
2939 ;;
2940 cell)
2941 cpuflags="-mcpu=cell"
2942 enable ldbrx
2943 ;;
2944 e500mc)
2945 cpuflags="-mcpu=e500mc"
2946 disable altivec
2947 ;;
2948 e500v2)
2949 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2950 disable altivec
2951 ;;
2952 e500)
2953 cpuflags="-mcpu=8540 -mhard-float"
2954 disable altivec
2955 ;;
2956 esac
2957
2958 elif enabled sparc; then
2959
2960 case $cpu in
2961 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2962 cpuflags="-mcpu=$cpu"
2963 disable vis
2964 ;;
2965 ultrasparc*|niagara[234])
2966 cpuflags="-mcpu=$cpu"
2967 ;;
2968 esac
2969
2970 elif enabled x86; then
2971
2972 case $cpu in
2973 i[345]86|pentium)
2974 cpuflags="-march=$cpu"
2975 disable mmx
2976 ;;
2977 # targets that do NOT support nopl and conditional mov (cmov)
2978 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2979 cpuflags="-march=$cpu"
2980 disable i686
2981 ;;
2982 # targets that do support nopl and conditional mov (cmov)
2983 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2984 cpuflags="-march=$cpu"
2985 enable i686
2986 enable fast_cmov
2987 ;;
2988 # targets that do support conditional mov but on which it's slow
2989 pentium4|pentium4m|prescott|nocona)
2990 cpuflags="-march=$cpu"
2991 enable i686
2992 disable fast_cmov
2993 ;;
2994 esac
2995
2996 fi
2997
2998 if [ "$cpu" != generic ]; then
2999 add_cflags $cpuflags
3000 add_asflags $cpuflags
3001 fi
3002
3003 # compiler sanity check
3004 check_exec <<EOF
3005 int main(void){ return 0; }
3006 EOF
3007 if test "$?" != 0; then
3008 echo "$cc is unable to create an executable file."
3009 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3010 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3011 echo "Only do this if you know what cross compiling means."
3012 fi
3013 die "C compiler test failed."
3014 fi
3015
3016 add_cppflags -D_ISOC99_SOURCE
3017 check_cflags -std=c99
3018 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3019 #include <stdlib.h>
3020 EOF
3021 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3022 #include <stdlib.h>
3023 EOF
3024
3025 check_host_cflags -std=c99
3026 check_host_cflags -Wall
3027
3028 check_64bit(){
3029 arch32=$1
3030 arch64=$2
3031 expr=$3
3032 check_code cc "" "int test[2*($expr) - 1]" &&
3033 subarch=$arch64 || subarch=$arch32
3034 }
3035
3036 case "$arch" in
3037 aarch64|alpha|ia64)
3038 spic=$shared
3039 ;;
3040 mips)
3041 check_64bit mips mips64 '_MIPS_SIM > 1'
3042 spic=$shared
3043 ;;
3044 parisc)
3045 check_64bit parisc parisc64 'sizeof(void *) > 4'
3046 spic=$shared
3047 ;;
3048 ppc)
3049 check_64bit ppc ppc64 'sizeof(void *) > 4'
3050 spic=$shared
3051 ;;
3052 sparc)
3053 check_64bit sparc sparc64 'sizeof(void *) > 4'
3054 spic=$shared
3055 ;;
3056 x86)
3057 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3058 if test "$subarch" = "x86_64"; then
3059 spic=$shared
3060 fi
3061 ;;
3062 esac
3063
3064 enable $subarch
3065 enabled spic && enable_weak pic
3066
3067 # OS specific
3068 case $target_os in
3069 aix)
3070 SHFLAGS=-shared
3071 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3072 enabled shared && add_ldflags -Wl,-brtl
3073 ;;
3074 haiku)
3075 prefix_default="/boot/common"
3076 network_extralibs="-lnetwork"
3077 host_libs=
3078 ;;
3079 sunos)
3080 SHFLAGS='-shared -Wl,-h,$$(@F)'
3081 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3082 network_extralibs="-lsocket -lnsl"
3083 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3084 # When using suncc to build, the Solaris linker will mark
3085 # an executable with each instruction set encountered by
3086 # the Solaris assembler. As our libraries contain their own
3087 # guards for processor-specific code, instead suppress
3088 # generation of the HWCAPS ELF section on Solaris x86 only.
3089 enabled_all suncc x86 &&
3090 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3091 add_ldflags -Wl,-M,mapfile
3092 nm_default='nm -P -g'
3093 ;;
3094 netbsd)
3095 disable symver
3096 oss_indev_extralibs="-lossaudio"
3097 oss_outdev_extralibs="-lossaudio"
3098 ;;
3099 openbsd|bitrig)
3100 disable symver
3101 SHFLAGS='-shared'
3102 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3103 SLIB_INSTALL_LINKS=
3104 oss_indev_extralibs="-lossaudio"
3105 oss_outdev_extralibs="-lossaudio"
3106 ;;
3107 dragonfly)
3108 disable symver
3109 ;;
3110 freebsd)
3111 ;;
3112 bsd/os)
3113 add_extralibs -lpoll -lgnugetopt
3114 ;;
3115 darwin)
3116 gas="gas-preprocessor.pl $cc"
3117 enabled ppc && add_asflags -force_cpusubtype_ALL
3118 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3119 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3120 add_ldflags -Wl,-dynamic,-search_paths_first
3121 SLIBSUF=".dylib"
3122 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3123 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3124 objformat="macho"
3125 enabled x86_64 && objformat="macho64"
3126 enabled_any pic shared ||
3127 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3128 ;;
3129 mingw32*)
3130 if test $target_os = "mingw32ce"; then
3131 disable network
3132 else
3133 target_os=mingw32
3134 fi
3135 LIBTARGET=i386
3136 if enabled x86_64; then
3137 LIBTARGET="i386:x86-64"
3138 elif enabled arm; then
3139 LIBTARGET=arm-wince
3140 fi
3141 check_ldflags -Wl,--nxcompat
3142 check_ldflags -Wl,--dynamicbase
3143 shlibdir_default="$bindir_default"
3144 SLIBPREF=""
3145 SLIBSUF=".dll"
3146 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3147 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3148 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3149 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3150 SLIB_INSTALL_LINKS=
3151 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3152 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3153 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3154 objformat="win32"
3155 dlltool="${cross_prefix}dlltool"
3156 ranlib=:
3157 enable dos_paths
3158 ;;
3159 win32|win64)
3160 if enabled shared; then
3161 # Link to the import library instead of the normal static library
3162 # for shared libs.
3163 LD_LIB='%.lib'
3164 # Cannot build shared and static libs at the same time with MSVC.
3165 disable static
3166 fi
3167 shlibdir_default="$bindir_default"
3168 SLIBPREF=""
3169 SLIBSUF=".dll"
3170 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3171 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3172 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3173 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3174 SLIB_INSTALL_LINKS=
3175 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3176 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3177 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3178 objformat="win32"
3179 ranlib=:
3180 enable dos_paths
3181 ;;
3182 cygwin*)
3183 target_os=cygwin
3184 shlibdir_default="$bindir_default"
3185 SLIBPREF="cyg"
3186 SLIBSUF=".dll"
3187 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3188 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3189 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3190 SLIB_INSTALL_LINKS=
3191 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3192 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3193 objformat="win32"
3194 enable dos_paths
3195 ;;
3196 *-dos|freedos|opendos)
3197 network_extralibs="-lsocket"
3198 objformat="coff"
3199 enable dos_paths
3200 add_cppflags -U__STRICT_ANSI__
3201 ;;
3202 linux)
3203 enable dv1394
3204 ;;
3205 irix*)
3206 target_os=irix
3207 ranlib="echo ignoring ranlib"
3208 ;;
3209 os/2*)
3210 ln_s="cp -f"
3211 objformat="aout"
3212 add_cppflags -D_GNU_SOURCE
3213 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3214 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3215 LIBSUF="_s.a"
3216 SLIBPREF=""
3217 SLIBSUF=".dll"
3218 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3219 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3220 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3221 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3222 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3223 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3224 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3225 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3226 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3227 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3228 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3229 enable dos_paths
3230 ;;
3231 gnu/kfreebsd)
3232 add_cppflags -D_BSD_SOURCE
3233 ;;
3234 gnu)
3235 ;;
3236 qnx)
3237 add_cppflags -D_QNX_SOURCE
3238 network_extralibs="-lsocket"
3239 ;;
3240 symbian)
3241 SLIBSUF=".dll"
3242 enable dos_paths
3243 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3244 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3245 add_ldflags -Wl,--target1-abs,--no-undefined \
3246 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3247 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3248 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3249 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3250 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3251 ;;
3252 osf1)
3253 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3254 ;;
3255 minix)
3256 ;;
3257 plan9)
3258 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3259 -D_REENTRANT_SOURCE \
3260 -D_RESEARCH_SOURCE \
3261 -DFD_SETSIZE=96 \
3262 -DHAVE_SOCK_OPTS
3263 add_compat strtod.o strtod=avpriv_strtod
3264 network_extralibs='-lbsd'
3265 exeobjs=compat/plan9/main.o
3266 disable avserver
3267 cp_f='cp'
3268 ;;
3269 none)
3270 ;;
3271 *)
3272 die "Unknown OS '$target_os'."
3273 ;;
3274 esac
3275
3276 # determine libc flavour
3277
3278 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3279 if check_cpp_condition features.h "defined __UCLIBC__"; then
3280 libc_type=uclibc
3281 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3282 elif check_cpp_condition features.h "defined __GLIBC__"; then
3283 libc_type=glibc
3284 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3285 # MinGW headers can be installed on Cygwin, so check for newlib first.
3286 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3287 libc_type=newlib
3288 add_cppflags -U__STRICT_ANSI__
3289 elif check_header _mingw.h; then
3290 libc_type=mingw
3291 check_cpp_condition _mingw.h \
3292 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3293 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3294 die "ERROR: MinGW runtime version must be >= 3.15."
3295 add_cppflags -U__STRICT_ANSI__
3296 elif check_func_headers stdlib.h _get_doserrno; then
3297 libc_type=msvcrt
3298 add_compat strtod.o strtod=avpriv_strtod
3299 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3300 _snprintf=avpriv_snprintf \
3301 vsnprintf=avpriv_vsnprintf
3302 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3303 # 0x601 by default unless something else is set by the user.
3304 # This can easily lead to us detecting functions only present
3305 # in such new versions and producing binaries requiring windows 7.0.
3306 # Therefore explicitly set the default to XP unless the user has
3307 # set something else on the command line.
3308 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3309 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3310 libc_type=klibc
3311 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3312 libc_type=bionic
3313 add_compat strtod.o strtod=avpriv_strtod
3314 fi
3315
3316 test -n "$libc_type" && enable $libc_type
3317
3318 # hacks for compiler/libc/os combinations
3319
3320 if enabled_all tms470 glibc; then
3321 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3322 add_cppflags -D__USER_LABEL_PREFIX__=
3323 add_cppflags -D__builtin_memset=memset
3324 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3325 add_cflags -pds=48 # incompatible redefinition of macro
3326 fi
3327
3328 if enabled_all ccc glibc; then
3329 add_ldflags -Wl,-z,now # calls to libots crash without this
3330 fi
3331
3332 esc(){
3333 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3334 }
3335
3336 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3337
3338 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3339
3340 set_default $PATHS_LIST
3341 set_default nm
3342
3343 # we need to build at least one lib type
3344 if ! enabled_any static shared; then
3345 cat <<EOF
3346 At least one library type must be built.
3347 Specify --enable-static to build the static libraries or --enable-shared to
3348 build the shared libraries as well. To only build the shared libraries specify
3349 --disable-static in addition to --enable-shared.
3350 EOF
3351 exit 1;
3352 fi
3353
3354 die_license_disabled() {
3355 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3356 }
3357
3358 die_license_disabled gpl libcdio
3359 die_license_disabled gpl libx264
3360 die_license_disabled gpl libxavs
3361 die_license_disabled gpl libxvid
3362 die_license_disabled gpl x11grab
3363
3364 die_license_disabled nonfree libfaac
3365 die_license_disabled nonfree libfdk_aac
3366 die_license_disabled nonfree openssl
3367
3368 die_license_disabled version3 libopencore_amrnb
3369 die_license_disabled version3 libopencore_amrwb
3370 die_license_disabled version3 libvo_aacenc
3371 die_license_disabled version3 libvo_amrwbenc
3372
3373 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3374
3375 disabled optimizations || check_cflags -fomit-frame-pointer
3376
3377 enable_weak_pic() {
3378 disabled pic && return
3379 enable pic
3380 add_cppflags -DPIC
3381 case "$target_os" in
3382 mingw*|cygwin*)
3383 ;;
3384 *)
3385 add_cflags -fPIC
3386 ;;
3387 esac
3388 add_asflags -fPIC
3389 }
3390
3391 enabled pic && enable_weak_pic
3392
3393 check_cc <<EOF || die "Symbol mangling check failed."
3394 int ff_extern;
3395 EOF
3396 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3397 extern_prefix=${sym%%ff_extern*}
3398
3399 check_cc <<EOF && enable_weak inline_asm
3400 void foo(void) { __asm__ volatile ("" ::); }
3401 EOF
3402
3403 _restrict=
3404 for restrict_keyword in restrict __restrict__ __restrict; do
3405 check_cc <<EOF && _restrict=$restrict_keyword && break
3406 void foo(char * $restrict_keyword p);
3407 EOF
3408 done
3409
3410 check_cc <<EOF && enable pragma_deprecated
3411 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3412 EOF
3413
3414 check_cc <<EOF && enable attribute_packed
3415 struct { int x; } __attribute__((packed)) x;
3416 EOF
3417
3418 check_cc <<EOF && enable attribute_may_alias
3419 union { int x; } __attribute__((may_alias)) x;
3420 EOF
3421
3422 check_cc <<EOF || die "endian test failed"
3423 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3424 EOF
3425 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3426
3427 check_inline_asm inline_asm_labels '"1:\n"'
3428
3429 if enabled alpha; then
3430
3431 check_cflags -mieee
3432
3433 elif enabled arm; then
3434
3435 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3436 enabled thumb && check_cflags -mthumb || check_cflags -marm
3437 nogas=die
3438
3439 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3440 enable vfp_args
3441 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3442 case "${cross_prefix:-$cc}" in
3443 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3444 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3445 __asm__ (".eabi_attribute 28, 1");
3446 int main(void) { return 0; }
3447 EOF
3448 esac
3449 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3450 fi
3451
3452 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3453 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3454 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3455 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3456 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3457 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3458
3459 [ $target_os = linux ] ||
3460 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3461 $ARCH_EXT_LIST_ARM
3462
3463 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3464 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3465
3466 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3467
3468 elif enabled mips; then
3469
3470 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3471
3472 elif enabled parisc; then
3473
3474 if enabled gcc; then
3475 case $($cc -dumpversion) in
3476 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3477 esac
3478 fi
3479
3480 elif enabled ppc; then
3481
3482 enable local_aligned_8 local_aligned_16
3483
3484 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3485 check_inline_asm ibm_asm '"add 0, 0, 0"'
3486 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3487 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3488
3489 # AltiVec flags: The FSF version of GCC differs from the Apple version
3490 if enabled altivec; then
3491 nogas=warn
3492 check_cflags -maltivec -mabi=altivec &&
3493 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3494 check_cflags -faltivec
3495
3496 # check if our compiler supports Motorola AltiVec C API
3497 check_cc <<EOF || disable altivec
3498 $inc_altivec_h
3499 int main(void) {
3500 vector signed int v1 = (vector signed int) { 0 };
3501 vector signed int v2 = (vector signed int) { 1 };
3502 v1 = vec_add(v1, v2);
3503 return 0;
3504 }
3505 EOF
3506
3507 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3508 fi
3509
3510 elif enabled sparc; then
3511
3512 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3513
3514 elif enabled x86; then
3515
3516 check_builtin rdtsc intrin.h "__rdtsc()"
3517 check_builtin mm_empty mmintrin.h "_mm_empty()"
3518
3519 enable local_aligned_8 local_aligned_16
3520
3521 # check whether EBP is available on x86
3522 # As 'i' is stored on the stack, this program will crash
3523 # if the base pointer is used to access it because the
3524 # base pointer is cleared in the inline assembly code.
3525 check_exec_crash <<EOF && enable ebp_available
3526 volatile int i=0;
3527 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3528 return i;
3529 EOF
3530
3531 # check whether EBX is available on x86
3532 check_inline_asm ebx_available '""::"b"(0)' &&
3533 check_inline_asm ebx_available '"":::"%ebx"'
3534
3535 # check whether xmm clobbers are supported
3536 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3537
3538 # check whether binutils is new enough to compile SSSE3/MMXEXT
3539 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3540 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3541
3542 if ! disabled_any asm mmx yasm; then
3543 if check_cmd $yasmexe --version; then
3544 enabled x86_64 && yasm_extra="-m amd64"
3545 yasm_debug="-g dwarf2"
3546 elif check_cmd nasm -v; then
3547 yasmexe=nasm
3548 yasm_debug="-g -F dwarf"
3549 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3550 fi
3551
3552 YASMFLAGS="-f $objformat $yasm_extra"
3553 enabled pic && append YASMFLAGS "-DPIC"
3554 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3555 case "$objformat" in
3556 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3557 esac
3558
3559 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3560 die "yasm not found, use --disable-yasm for a crippled build"
3561 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3562 check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3563 fi
3564
3565 case "$cpu" in
3566 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3567 disable fast_clz
3568 ;;
3569 esac
3570
3571 fi
3572
3573 if enabled asm; then
3574 as=${gas:=$as}
3575 check_as <<EOF && enable gnu_as || \
3576 $nogas "GNU assembler not found, install gas-preprocessor"
3577 .macro m n
3578 \n: .int 0
3579 .endm
3580 m x
3581 EOF
3582 fi
3583
3584 check_ldflags -Wl,--as-needed
3585
3586 if check_func dlopen; then
3587 ldl=
3588 elif check_func dlopen -ldl; then
3589 ldl=-ldl
3590 fi
3591
3592 if ! disabled network; then
3593 check_type "sys/types.h sys/socket.h" socklen_t
3594 check_type netdb.h "struct addrinfo"
3595 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3596 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3597 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3598 check_type netinet/in.h "struct sockaddr_in6"
3599 check_type poll.h "struct pollfd"
3600 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3601 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3602 check_type netinet/sctp.h "struct sctp_event_subscribe"
3603 check_func getaddrinfo $network_extralibs
3604 check_func getservbyport $network_extralibs
3605 # Prefer arpa/inet.h over winsock2
3606 if check_header arpa/inet.h ; then
3607 check_func closesocket
3608 elif check_header winsock2.h ; then
3609 check_func_headers winsock2.h closesocket -lws2 &&
3610 network_extralibs="-lws2" ||
3611 { check_func_headers winsock2.h closesocket -lws2_32 &&
3612 network_extralibs="-lws2_32"; }
3613 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3614 check_type ws2tcpip.h socklen_t
3615 check_type ws2tcpip.h "struct addrinfo"
3616 check_type ws2tcpip.h "struct group_source_req"
3617 check_type ws2tcpip.h "struct ip_mreq_source"
3618 check_type ws2tcpip.h "struct ipv6_mreq"
3619 check_type winsock2.h "struct pollfd"
3620 check_type ws2tcpip.h "struct sockaddr_in6"
3621 check_type ws2tcpip.h "struct sockaddr_storage"
3622 check_struct winsock2.h "struct sockaddr" sa_len
3623 else
3624 disable network
3625 fi
3626 fi
3627
3628 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3629 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3630
3631 check_func fcntl
3632 check_func fork
3633 check_func_headers stdlib.h getenv
3634 check_func gethrtime
3635 check_func getopt
3636 check_func getrusage
3637 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3638 check_func gettimeofday
3639 check_func inet_aton $network_extralibs
3640 check_func isatty
3641 check_func localtime_r
3642 check_func ${malloc_prefix}memalign && enable memalign
3643 check_func mkstemp
3644 check_func mmap
3645 check_func mprotect
3646 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3647 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3648 check_func setrlimit
3649 check_func strerror_r
3650 check_func strptime
3651 check_func strtok_r
3652 check_func sched_getaffinity
3653 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3654 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3655 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3656 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3657 check_func sysconf
3658 check_func sysctl
3659 check_func usleep
3660 check_func_headers io.h setmode
3661 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3662 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3663 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3664 check_func_headers windows.h GetProcessAffinityMask
3665 check_func_headers windows.h GetProcessTimes
3666 check_func_headers windows.h GetSystemTimeAsFileTime
3667 check_func_headers windows.h MapViewOfFile
3668 check_func_headers windows.h SetConsoleTextAttribute
3669 check_func_headers windows.h Sleep
3670 check_func_headers windows.h VirtualAlloc
3671
3672 check_header direct.h
3673 check_header dlfcn.h
3674 check_header dxva.h
3675 check_header dxva2api.h
3676 check_header io.h
3677 check_header malloc.h
3678 check_header poll.h
3679 check_header sys/mman.h
3680 check_header sys/param.h
3681 check_header sys/resource.h
3682 check_header sys/select.h
3683 check_header sys/time.h
3684 check_header sys/un.h
3685 check_header unistd.h
3686 check_header vdpau/vdpau.h
3687 check_header vdpau/vdpau_x11.h
3688 check_header VideoDecodeAcceleration/VDADecoder.h
3689 check_header windows.h
3690 check_header X11/extensions/XvMClib.h
3691
3692 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3693 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3694
3695 if ! disabled w32threads && ! enabled pthreads; then
3696 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3697 fi
3698
3699 # check for some common methods of building with pthread support
3700 # do this before the optional library checks as some of them require pthreads
3701 if ! disabled pthreads && ! enabled w32threads; then
3702 enable pthreads
3703 if check_func pthread_create; then
3704 :
3705 elif check_func pthread_create -pthread; then
3706 add_cflags -pthread
3707 add_extralibs -pthread
3708 elif check_func pthread_create -pthreads; then
3709 add_cflags -pthreads
<