vdpau: remove old-style decoders
[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_videoio_h
1358 threads
1359 unistd_h
1360 usleep
1361 vfp_args
1362 VirtualAlloc
1363 windows_h
1364 winsock2_h
1365 xform_asm
1366 xmm_clobbers
1367 "
1368
1369 # options emitted with CONFIG_ prefix but not available on the command line
1370 CONFIG_EXTRA="
1371 aandcttables
1372 ac3dsp
1373 audio_frame_queue
1374 dsputil
1375 gcrypt
1376 golomb
1377 gplv3
1378 h264chroma
1379 h264dsp
1380 h264pred
1381 h264qpel
1382 hpeldsp
1383 huffman
1384 lgplv3
1385 lpc
1386 mpegaudio
1387 mpegaudiodsp
1388 mpegvideo
1389 mpegvideoenc
1390 nettle
1391 rangecoder
1392 rtpdec
1393 rtpenc_chain
1394 sinewin
1395 videodsp
1396 vp3dsp
1397 "
1398
1399 CMDLINE_SELECT="
1400 $ARCH_EXT_LIST
1401 $CONFIG_LIST
1402 $HAVE_LIST_CMDLINE
1403 $THREADS_LIST
1404 asm
1405 cross_compile
1406 debug
1407 extra_warnings
1408 logging
1409 lto
1410 optimizations
1411 "
1412
1413 PATHS_LIST='
1414 bindir
1415 datadir
1416 incdir
1417 libdir
1418 mandir
1419 prefix
1420 shlibdir
1421 '
1422
1423 CMDLINE_SET="
1424 $PATHS_LIST
1425 ar
1426 arch
1427 as
1428 build_suffix
1429 cc
1430 cpu
1431 cross_prefix
1432 dep_cc
1433 extra_version
1434 host_cc
1435 host_cflags
1436 host_ld
1437 host_ldflags
1438 host_libs
1439 host_os
1440 ld
1441 logfile
1442 malloc_prefix
1443 nm
1444 optflags
1445 pkg_config
1446 random_seed
1447 samples
1448 sysinclude
1449 sysroot
1450 target_exec
1451 target_os
1452 target_path
1453 target_samples
1454 toolchain
1455 "
1456
1457 CMDLINE_APPEND="
1458 extra_cflags
1459 host_cppflags
1460 "
1461
1462 # code dependency declarations
1463
1464 # architecture extensions
1465
1466 armv5te_deps="arm"
1467 armv6_deps="arm"
1468 armv6t2_deps="arm"
1469 neon_deps="arm"
1470 vfp_deps="arm"
1471 vfpv3_deps="vfp"
1472
1473 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1474
1475 altivec_deps="ppc"
1476 ppc4xx_deps="ppc"
1477
1478 vis_deps="sparc"
1479
1480 x86_64_suggest="fast_cmov i686"
1481
1482 amd3dnow_deps="mmx"
1483 amd3dnowext_deps="amd3dnow"
1484 mmx_deps="x86"
1485 mmxext_deps="mmx"
1486 sse_deps="mmxext"
1487 sse2_deps="sse"
1488 sse3_deps="sse2"
1489 ssse3_deps="sse3"
1490 sse4_deps="ssse3"
1491 sse42_deps="sse4"
1492 avx_deps="sse42"
1493 fma4_deps="avx"
1494
1495 mmx_external_deps="yasm"
1496 mmx_inline_deps="inline_asm"
1497 mmx_suggest="mmx_external mmx_inline"
1498
1499 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1500 eval dep=\$${ext}_deps
1501 eval ${ext}_external_deps='"${dep}_external"'
1502 eval ${ext}_inline_deps='"${dep}_inline"'
1503 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1504 done
1505
1506 aligned_stack_if_any="ppc x86"
1507 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1508 fast_clz_if_any="alpha avr32 mips ppc x86"
1509 fast_unaligned_if_any="ppc x86"
1510
1511 inline_asm_deps="!tms470"
1512 need_memalign="altivec neon sse"
1513
1514 symver_if_any="symver_asm_label symver_gnu_asm"
1515
1516 log2_deps="!msvcrt"
1517
1518 # subsystems
1519 dct_select="rdft"
1520 error_resilience_select="dsputil"
1521 lpc_select="dsputil"
1522 mdct_select="fft"
1523 rdft_select="fft"
1524 mpegaudio_select="mpegaudiodsp"
1525 mpegaudiodsp_select="dct"
1526 mpegvideo_select="dsputil hpeldsp videodsp"
1527 mpegvideoenc_select="mpegvideo"
1528
1529 # decoders / encoders
1530 aac_decoder_select="mdct sinewin"
1531 aac_encoder_select="audio_frame_queue mdct sinewin"
1532 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1533 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1534 ac3_encoder_select="mdct ac3dsp dsputil"
1535 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1536 aic_decoder_select="dsputil golomb"
1537 alac_encoder_select="lpc"
1538 als_decoder_select="dsputil"
1539 amrnb_decoder_select="lsp"
1540 amrwb_decoder_select="lsp"
1541 amv_decoder_select="dsputil hpeldsp"
1542 ape_decoder_select="dsputil"
1543 asv1_decoder_select="dsputil"
1544 asv1_encoder_select="dsputil"
1545 asv2_decoder_select="dsputil"
1546 asv2_encoder_select="dsputil"
1547 atrac1_decoder_select="mdct sinewin"
1548 atrac3_decoder_select="mdct"
1549 bink_decoder_select="dsputil hpeldsp"
1550 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1551 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1552 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1553 cllc_decoder_select="dsputil"
1554 comfortnoise_encoder_select="lpc"
1555 cook_decoder_select="dsputil mdct sinewin"
1556 cscd_decoder_select="lzo"
1557 cscd_decoder_suggest="zlib"
1558 dca_decoder_select="mdct"
1559 dnxhd_decoder_select="dsputil"
1560 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1561 dvvideo_decoder_select="dsputil"
1562 dvvideo_encoder_select="dsputil"
1563 dxa_decoder_select="zlib"
1564 eac3_decoder_select="ac3_decoder"
1565 eac3_encoder_select="ac3_encoder"
1566 eamad_decoder_select="aandcttables dsputil mpegvideo"
1567 eatgq_decoder_select="aandcttables dsputil"
1568 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1569 ffv1_decoder_select="dsputil golomb rangecoder"
1570 ffv1_encoder_select="dsputil rangecoder"
1571 ffvhuff_decoder_select="dsputil"
1572 ffvhuff_encoder_select="dsputil huffman"
1573 flac_decoder_select="golomb"
1574 flac_encoder_select="dsputil golomb lpc"
1575 flashsv_decoder_select="zlib"
1576 flashsv_encoder_select="zlib"
1577 flashsv2_decoder_select="zlib"
1578 flv_decoder_select="h263_decoder"
1579 flv_encoder_select="h263_encoder"
1580 fourxm_decoder_select="dsputil"
1581 fraps_decoder_select="dsputil huffman"
1582 g2m_decoder_select="dsputil zlib"
1583 h261_decoder_select="error_resilience mpegvideo"
1584 h261_encoder_select="aandcttables mpegvideoenc"
1585 h263_decoder_select="error_resilience h263_parser mpegvideo"
1586 h263_encoder_select="aandcttables mpegvideoenc"
1587 h263i_decoder_select="h263_decoder"
1588 h263p_encoder_select="h263_encoder"
1589 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1590 h264_decoder_suggest="error_resilience"
1591 huffyuv_decoder_select="dsputil"
1592 huffyuv_encoder_select="dsputil huffman"
1593 iac_decoder_select="dsputil fft mdct sinewin"
1594 imc_decoder_select="dsputil fft mdct sinewin"
1595 indeo3_decoder_select="hpeldsp"
1596 interplay_video_decoder_select="hpeldsp"
1597 jpegls_decoder_select="dsputil golomb hpeldsp"
1598 jpegls_encoder_select="golomb"
1599 jv_decoder_select="dsputil"
1600 lagarith_decoder_select="dsputil"
1601 ljpeg_encoder_select="aandcttables mpegvideoenc"
1602 loco_decoder_select="golomb"
1603 mdec_decoder_select="dsputil error_resilience mpegvideo"
1604 mimic_decoder_select="dsputil hpeldsp"
1605 mjpeg_decoder_select="dsputil hpeldsp"
1606 mjpegb_decoder_select="dsputil hpeldsp"
1607 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1608 mlp_decoder_select="dsputil mlp_parser"
1609 motionpixels_decoder_select="dsputil"
1610 mp1_decoder_select="mpegaudio"
1611 mp1float_decoder_select="mpegaudio"
1612 mp2_decoder_select="mpegaudio"
1613 mp2float_decoder_select="mpegaudio"
1614 mp3_decoder_select="mpegaudio"
1615 mp3adu_decoder_select="mpegaudio"
1616 mp3adufloat_decoder_select="mpegaudio"
1617 mp3float_decoder_select="mpegaudio"
1618 mp3on4_decoder_select="mpegaudio"
1619 mp3on4float_decoder_select="mpegaudio"
1620 mpc7_decoder_select="dsputil mpegaudiodsp"
1621 mpc8_decoder_select="dsputil mpegaudiodsp"
1622 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1623 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1624 mpeg1video_decoder_select="error_resilience mpegvideo"
1625 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1626 mpeg2video_decoder_select="error_resilience mpegvideo"
1627 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1628 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1629 mpeg4_encoder_select="h263_encoder"
1630 msmpeg4v1_decoder_select="h263_decoder"
1631 msmpeg4v2_decoder_select="h263_decoder"
1632 msmpeg4v2_encoder_select="h263_encoder"
1633 msmpeg4v3_decoder_select="h263_decoder"
1634 msmpeg4v3_encoder_select="h263_encoder"
1635 mss2_decoder_select="error_resilience vc1_decoder"
1636 mxpeg_decoder_select="dsputil hpeldsp"
1637 nellymoser_decoder_select="mdct sinewin"
1638 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1639 nuv_decoder_select="dsputil lzo"
1640 png_decoder_select="dsputil zlib"
1641 png_encoder_select="dsputil zlib"
1642 prores_decoder_select="dsputil"
1643 prores_encoder_select="dsputil"
1644 qcelp_decoder_select="lsp"
1645 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1646 ra_144_encoder_select="audio_frame_queue lpc"
1647 ralf_decoder_select="golomb"
1648 rv10_decoder_select="error_resilience h263_decoder"
1649 rv10_encoder_select="h263_encoder"
1650 rv20_decoder_select="error_resilience h263_decoder"
1651 rv20_encoder_select="h263_encoder"
1652 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1653 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1654 shorten_decoder_select="golomb"
1655 sipr_decoder_select="lsp"
1656 sp5x_decoder_select="dsputil hpeldsp"
1657 svq1_decoder_select="hpeldsp"
1658 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1659 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1660 svq3_decoder_suggest="error_resilience zlib"
1661 tak_decoder_select="dsputil"
1662 theora_decoder_select="vp3_decoder"
1663 tiff_decoder_suggest="zlib"
1664 tiff_encoder_suggest="zlib"
1665 thp_decoder_select="dsputil hpeldsp"
1666 truehd_decoder_select="mlp_decoder"
1667 truemotion2_decoder_select="dsputil"
1668 truespeech_decoder_select="dsputil"
1669 tscc_decoder_select="zlib"
1670 twinvq_decoder_select="mdct lsp sinewin"
1671 utvideo_decoder_select="dsputil"
1672 utvideo_encoder_select="dsputil huffman"
1673 vble_decoder_select="dsputil"
1674 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1675 vc1image_decoder_select="vc1_decoder"
1676 vorbis_decoder_select="mdct"
1677 vorbis_encoder_select="mdct"
1678 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1679 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1680 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1681 vp6a_decoder_select="vp6_decoder"
1682 vp6f_decoder_select="vp6_decoder"
1683 vp8_decoder_select="h264pred videodsp"
1684 wmapro_decoder_select="mdct sinewin"
1685 wmav1_decoder_select="mdct sinewin"
1686 wmav1_encoder_select="mdct sinewin"
1687 wmav2_decoder_select="mdct sinewin"
1688 wmav2_encoder_select="mdct sinewin"
1689 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1690 wmv1_decoder_select="h263_decoder"
1691 wmv1_encoder_select="h263_encoder"
1692 wmv2_decoder_select="h263_decoder videodsp"
1693 wmv2_encoder_select="h263_encoder"
1694 wmv3_decoder_select="vc1_decoder"
1695 wmv3image_decoder_select="wmv3_decoder"
1696 zerocodec_decoder_select="zlib"
1697 zlib_decoder_select="zlib"
1698 zlib_encoder_select="zlib"
1699 zmbv_decoder_select="zlib"
1700 zmbv_encoder_select="zlib"
1701
1702 # hardware accelerators
1703 dxva2_deps="dxva2api_h"
1704 vaapi_deps="va_va_h"
1705 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1706 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1707 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1708
1709 h263_vaapi_hwaccel_deps="vaapi"
1710 h263_vaapi_hwaccel_select="h263_decoder"
1711 h263_vdpau_hwaccel_deps="vdpau"
1712 h263_vdpau_hwaccel_select="h263_decoder"
1713 h264_dxva2_hwaccel_deps="dxva2"
1714 h264_dxva2_hwaccel_select="h264_decoder"
1715 h264_vaapi_hwaccel_deps="vaapi"
1716 h264_vaapi_hwaccel_select="h264_decoder"
1717 h264_vda_hwaccel_deps="vda"
1718 h264_vda_hwaccel_select="h264_decoder"
1719 h264_vdpau_hwaccel_deps="vdpau"
1720 h264_vdpau_hwaccel_select="h264_decoder"
1721 mpeg1_vdpau_hwaccel_deps="vdpau"
1722 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1723 mpeg2_dxva2_hwaccel_deps="dxva2"
1724 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1725 mpeg2_vaapi_hwaccel_deps="vaapi"
1726 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1727 mpeg2_vdpau_hwaccel_deps="vdpau"
1728 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1729 mpeg4_vaapi_hwaccel_deps="vaapi"
1730 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1731 mpeg4_vdpau_hwaccel_deps="vdpau"
1732 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1733 vc1_dxva2_hwaccel_deps="dxva2"
1734 vc1_dxva2_hwaccel_select="vc1_decoder"
1735 vc1_vaapi_hwaccel_deps="vaapi"
1736 vc1_vaapi_hwaccel_select="vc1_decoder"
1737 vc1_vdpau_hwaccel_deps="vdpau"
1738 vc1_vdpau_hwaccel_select="vc1_decoder"
1739 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1740 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1741 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1742
1743 # parsers
1744 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1745 mpeg4video_parser_select="error_resilience mpegvideo"
1746 mpegvideo_parser_select="error_resilience mpegvideo"
1747 vc1_parser_select="mpegvideo"
1748
1749 # external libraries
1750 libfaac_encoder_deps="libfaac"
1751 libfaac_encoder_select="audio_frame_queue"
1752 libfdk_aac_encoder_deps="libfdk_aac"
1753 libfdk_aac_encoder_select="audio_frame_queue"
1754 libgsm_decoder_deps="libgsm"
1755 libgsm_encoder_deps="libgsm"
1756 libgsm_ms_decoder_deps="libgsm"
1757 libgsm_ms_encoder_deps="libgsm"
1758 libilbc_decoder_deps="libilbc"
1759 libilbc_encoder_deps="libilbc"
1760 libmp3lame_encoder_deps="libmp3lame"
1761 libmp3lame_encoder_select="audio_frame_queue"
1762 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1763 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1764 libopencore_amrnb_encoder_select="audio_frame_queue"
1765 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1766 libopenjpeg_decoder_deps="libopenjpeg"
1767 libopenjpeg_encoder_deps="libopenjpeg"
1768 libopus_decoder_deps="libopus"
1769 libopus_encoder_deps="libopus"
1770 libopus_encoder_select="audio_frame_queue"
1771 libschroedinger_decoder_deps="libschroedinger"
1772 libschroedinger_encoder_deps="libschroedinger"
1773 libspeex_decoder_deps="libspeex"
1774 libspeex_encoder_deps="libspeex"
1775 libspeex_encoder_select="audio_frame_queue"
1776 libtheora_encoder_deps="libtheora"
1777 libvo_aacenc_encoder_deps="libvo_aacenc"
1778 libvo_aacenc_encoder_select="audio_frame_queue"
1779 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1780 libvorbis_encoder_deps="libvorbis"
1781 libvorbis_encoder_select="audio_frame_queue"
1782 libvpx_vp8_decoder_deps="libvpx"
1783 libvpx_vp8_encoder_deps="libvpx"
1784 libvpx_vp9_decoder_deps="libvpx"
1785 libvpx_vp9_encoder_deps="libvpx"
1786 libwavpack_encoder_deps="libwavpack"
1787 libx264_encoder_deps="libx264"
1788 libxavs_encoder_deps="libxavs"
1789 libxvid_encoder_deps="libxvid"
1790
1791 # demuxers / muxers
1792 ac3_demuxer_select="ac3_parser"
1793 asf_stream_muxer_select="asf_muxer"
1794 avisynth_demuxer_deps="avisynth"
1795 dirac_demuxer_select="dirac_parser"
1796 eac3_demuxer_select="ac3_parser"
1797 flac_demuxer_select="flac_parser"
1798 ipod_muxer_select="mov_muxer"
1799 ismv_muxer_select="mov_muxer"
1800 matroska_audio_muxer_select="matroska_muxer"
1801 matroska_demuxer_suggest="bzlib lzo zlib"
1802 mov_demuxer_suggest="zlib"
1803 mov_muxer_select="rtpenc_chain"
1804 mp3_demuxer_select="mpegaudio_parser"
1805 mp4_muxer_select="mov_muxer"
1806 mpegts_muxer_select="adts_muxer latm_muxer"
1807 mpegtsraw_demuxer_select="mpegts_demuxer"
1808 mxf_d10_muxer_select="mxf_muxer"
1809 ogg_demuxer_select="golomb"
1810 psp_muxer_select="mov_muxer"
1811 rtp_demuxer_select="sdp_demuxer"
1812 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1813 rtsp_demuxer_select="http_protocol rtpdec"
1814 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1815 sap_demuxer_select="sdp_demuxer"
1816 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1817 sdp_demuxer_select="rtpdec"
1818 smoothstreaming_muxer_select="ismv_muxer"
1819 spdif_muxer_select="aac_parser"
1820 tak_demuxer_select="tak_parser"
1821 tg2_muxer_select="mov_muxer"
1822 tgp_muxer_select="mov_muxer"
1823 w64_demuxer_deps="wav_demuxer"
1824
1825 # indevs / outdevs
1826 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1827 alsa_outdev_deps="alsa_asoundlib_h"
1828 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1829 dv1394_indev_deps="dv1394 dv_demuxer"
1830 fbdev_indev_deps="linux_fb_h"
1831 jack_indev_deps="jack_jack_h pthreads"
1832 libcdio_indev_deps="libcdio"
1833 libdc1394_indev_deps="libdc1394"
1834 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1835 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1836 pulse_indev_deps="libpulse"
1837 sndio_indev_deps="sndio_h"
1838 sndio_outdev_deps="sndio_h"
1839 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1840 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1841 vfwcap_indev_extralibs="-lavicap32"
1842 x11grab_indev_deps="x11grab XShmCreateImage"
1843
1844 # protocols
1845 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1846 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1847 ffrtmpcrypt_protocol_select="tcp_protocol"
1848 ffrtmphttp_protocol_deps="!librtmp_protocol"
1849 ffrtmphttp_protocol_select="http_protocol"
1850 gopher_protocol_select="network"
1851 httpproxy_protocol_select="tcp_protocol"
1852 http_protocol_select="tcp_protocol"
1853 https_protocol_select="tls_protocol"
1854 librtmp_protocol_deps="librtmp"
1855 librtmpe_protocol_deps="librtmp"
1856 librtmps_protocol_deps="librtmp"
1857 librtmpt_protocol_deps="librtmp"
1858 librtmpte_protocol_deps="librtmp"
1859 mmsh_protocol_select="http_protocol"
1860 mmst_protocol_select="network"
1861 rtmp_protocol_deps="!librtmp_protocol"
1862 rtmp_protocol_select="tcp_protocol"
1863 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1864 rtmps_protocol_deps="!librtmp_protocol"
1865 rtmps_protocol_select="tls_protocol"
1866 rtmpt_protocol_select="ffrtmphttp_protocol"
1867 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1868 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1869 rtp_protocol_select="udp_protocol"
1870 sctp_protocol_deps="struct_sctp_event_subscribe"
1871 sctp_protocol_select="network"
1872 srtp_protocol_select="rtp_protocol"
1873 tcp_protocol_select="network"
1874 tls_protocol_deps_any="openssl gnutls"
1875 tls_protocol_select="tcp_protocol"
1876 udp_protocol_select="network"
1877
1878 # filters
1879 blackframe_filter_deps="gpl"
1880 boxblur_filter_deps="gpl"
1881 cropdetect_filter_deps="gpl"
1882 delogo_filter_deps="gpl"
1883 drawtext_filter_deps="libfreetype"
1884 frei0r_filter_deps="frei0r dlopen strtok_r"
1885 frei0r_filter_extralibs='$ldl'
1886 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1887 frei0r_src_filter_extralibs='$ldl'
1888 hqdn3d_filter_deps="gpl"
1889 interlace_filter_deps="gpl"
1890 resample_filter_deps="avresample"
1891 ocv_filter_deps="libopencv"
1892 scale_filter_deps="swscale"
1893 yadif_filter_deps="gpl"
1894
1895 # libraries
1896 avcodec_deps="avutil"
1897 avdevice_deps="avutil avcodec avformat"
1898 avfilter_deps="avutil"
1899 avformat_deps="avutil avcodec"
1900 avresample_deps="avutil"
1901 swscale_deps="avutil"
1902
1903 # programs
1904 avconv_deps="avcodec avfilter avformat avresample swscale"
1905 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1906 fps_filter null_filter resample_filter scale_filter
1907 setpts_filter trim_filter"
1908 avplay_deps="avcodec avformat avresample swscale sdl"
1909 avplay_select="rdft"
1910 avprobe_deps="avcodec avformat"
1911 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1912 avserver_extralibs='$ldl'
1913
1914 doc_deps="texi2html"
1915
1916 # default parameters
1917
1918 logfile="config.log"
1919
1920 # installation paths
1921 prefix_default="/usr/local"
1922 bindir_default='${prefix}/bin'
1923 datadir_default='${prefix}/share/avconv'
1924 incdir_default='${prefix}/include'
1925 libdir_default='${prefix}/lib'
1926 mandir_default='${prefix}/share/man'
1927 shlibdir_default="$libdir_default"
1928
1929 # toolchain
1930 ar_default="ar"
1931 cc_default="gcc"
1932 host_cc_default="gcc"
1933 cp_f="cp -f"
1934 ln_s="ln -s -f"
1935 nm_default="nm -g"
1936 objformat="elf"
1937 pkg_config_default=pkg-config
1938 ranlib="ranlib"
1939 yasmexe="yasm"
1940
1941 nogas=":"
1942
1943 # machine
1944 arch_default=$(uname -m)
1945 cpu="generic"
1946
1947 # OS
1948 target_os_default=$(tolower $(uname -s))
1949 host_os=$target_os_default
1950
1951 # configurable options
1952 enable $LIBRARY_LIST $PROGRAM_LIST
1953
1954 enable asm
1955 enable debug
1956 enable doc
1957 enable optimizations
1958 enable safe_bitstream_reader
1959 enable static
1960 enable swscale_alpha
1961
1962 # By default, enable only those hwaccels that have no external dependencies.
1963 enable dxva2 vdpau
1964
1965 # build settings
1966 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1967 LIBPREF="lib"
1968 LIBSUF=".a"
1969 FULLNAME='$(NAME)$(BUILDSUF)'
1970 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1971 SLIBPREF="lib"
1972 SLIBSUF=".so"
1973 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1974 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1975 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1976 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1977 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1978 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1979
1980 asflags_filter=echo
1981 cflags_filter=echo
1982 ldflags_filter=echo
1983
1984 AS_C='-c'
1985 AS_O='-o $@'
1986 CC_C='-c'
1987 CC_E='-E -o $@'
1988 CC_O='-o $@'
1989 LD_O='-o $@'
1990 LD_LIB='-l%'
1991 LD_PATH='-L'
1992 HOSTCC_C='-c'
1993 HOSTCC_O='-o $@'
1994 HOSTLD_O='-o $@'
1995
1996 host_cflags='-O3 -g'
1997 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
1998 host_libs='-lm'
1999 host_cflags_filter=echo
2000 host_ldflags_filter=echo
2001
2002 target_path='$(CURDIR)'
2003
2004 # since the object filename is not given with the -MM flag, the compiler
2005 # is only able to print the basename, and we must add the path ourselves
2006 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2007 DEPFLAGS='-MM'
2008
2009 # find source path
2010 if test -f configure; then
2011 source_path=.
2012 else
2013 source_path=$(cd $(dirname "$0"); pwd)
2014 echo "$source_path" | grep -q '[[:blank:]]' &&
2015 die "Out of tree builds are impossible with whitespace in source path."
2016 test -e "$source_path/config.h" &&
2017 die "Out of tree builds are impossible with config.h in source dir."
2018 fi
2019
2020 for v in "$@"; do
2021 r=${v#*=}
2022 l=${v%"$r"}
2023 r=$(sh_quote "$r")
2024 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2025 done
2026
2027 find_things(){
2028 thing=$1
2029 pattern=$2
2030 file=$source_path/$3
2031 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2032 }
2033
2034 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2035 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2036 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2037 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2038 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2039 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2040 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2041 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2042 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2043 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2044 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2045
2046 ALL_COMPONENTS="
2047 $BSF_LIST
2048 $DECODER_LIST
2049 $DEMUXER_LIST
2050 $ENCODER_LIST
2051 $FILTER_LIST
2052 $HWACCEL_LIST
2053 $INDEV_LIST
2054 $MUXER_LIST
2055 $OUTDEV_LIST
2056 $PARSER_LIST
2057 $PROTOCOL_LIST
2058 "
2059
2060 for n in $COMPONENT_LIST; do
2061 v=$(toupper ${n%s})_LIST
2062 eval enable \$$v
2063 eval ${n}_if_any="\$$v"
2064 done
2065
2066 enable $ARCH_EXT_LIST
2067
2068 die_unknown(){
2069 echo "Unknown option \"$1\"."
2070 echo "See $0 --help for available options."
2071 exit 1
2072 }
2073
2074 print_3_columns() {
2075 cat | tr ' ' '\n' | sort | pr -r -3 -t
2076 }
2077
2078 show_list() {
2079 suffix=_$1
2080 shift
2081 echo $* | sed s/$suffix//g | print_3_columns
2082 exit 0
2083 }
2084
2085 rand_list(){
2086 IFS=', '
2087 set -- $*
2088 unset IFS
2089 for thing; do
2090 comp=${thing%:*}
2091 prob=${thing#$comp}
2092 prob=${prob#:}
2093 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2094 echo "prob ${prob:-0.5}"
2095 printf '%s\n' $comp
2096 done
2097 }
2098
2099 do_random(){
2100 action=$1
2101 shift
2102 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2103 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2104 }
2105
2106 for opt do
2107 optval="${opt#*=}"
2108 case "$opt" in
2109 --extra-ldflags=*)
2110 add_ldflags $optval
2111 ;;
2112 --extra-libs=*)
2113 add_extralibs $optval
2114 ;;
2115 --disable-devices)
2116 disable $INDEV_LIST $OUTDEV_LIST
2117 ;;
2118 --enable-debug=*)
2119 debuglevel="$optval"
2120 ;;
2121 --disable-programs)
2122 disable $PROGRAM_LIST
2123 ;;
2124 --disable-everything)
2125 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2126 ;;
2127 --disable-all)
2128 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2129 disable $LIBRARY_LIST $PROGRAM_LIST doc
2130 ;;
2131 --enable-random|--disable-random)
2132 action=${opt%%-random}
2133 do_random ${action#--} $COMPONENT_LIST
2134 ;;
2135 --enable-random=*|--disable-random=*)
2136 action=${opt%%-random=*}
2137 do_random ${action#--} $optval
2138 ;;
2139 --enable-*=*|--disable-*=*)
2140 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2141 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2142 eval list=\$$(toupper $thing)_LIST
2143 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2144 $action $(filter "$name" $list)
2145 ;;
2146 --enable-?*|--disable-?*)
2147 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2148 if is_in $option $COMPONENT_LIST; then
2149 test $action = disable && action=unset
2150 eval $action \$$(toupper ${option%s})_LIST
2151 elif is_in $option $CMDLINE_SELECT; then
2152 $action $option
2153 else
2154 die_unknown $opt
2155 fi
2156 ;;
2157 --list-*)
2158 NAME="${opt#--list-}"
2159 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2160 NAME=${NAME%s}
2161 eval show_list $NAME \$$(toupper $NAME)_LIST
2162 ;;
2163 --help|-h) show_help
2164 ;;
2165 *)
2166 optname="${opt%%=*}"
2167 optname="${optname#--}"
2168 optname=$(echo "$optname" | sed 's/-/_/g')
2169 if is_in $optname $CMDLINE_SET; then
2170 eval $optname='$optval'
2171 elif is_in $optname $CMDLINE_APPEND; then
2172 append $optname "$optval"
2173 else
2174 die_unknown $opt
2175 fi
2176 ;;
2177 esac
2178 done
2179
2180 disabled logging && logfile=/dev/null
2181
2182 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2183 set >> $logfile
2184
2185 test -n "$cross_prefix" && enable cross_compile
2186
2187 if enabled cross_compile; then
2188 test -n "$arch" && test -n "$target_os" ||
2189 die "Must specify target arch and OS when cross-compiling"
2190 fi
2191
2192 ar_default="${cross_prefix}${ar_default}"
2193 cc_default="${cross_prefix}${cc_default}"
2194 nm_default="${cross_prefix}${nm_default}"
2195 pkg_config_default="${cross_prefix}${pkg_config_default}"
2196 ranlib="${cross_prefix}${ranlib}"
2197
2198 sysinclude_default="${sysroot}/usr/include"
2199
2200 case "$toolchain" in
2201 clang-asan)
2202 cc_default="clang"
2203 add_cflags -fsanitize=address
2204 add_ldflags -fsanitize=address
2205 ;;
2206 clang-tsan)
2207 cc_default="clang"
2208 add_cflags -fsanitize=thread -pie
2209 add_ldflags -fsanitize=thread -pie
2210 ;;
2211 gcc-asan)
2212 cc_default="gcc"
2213 add_cflags -fsanitize=address
2214 add_ldflags -fsanitize=address
2215 ;;
2216 gcc-tsan)
2217 cc_default="gcc"
2218 add_cflags -fsanitize=thread -pie -fPIC
2219 add_ldflags -fsanitize=thread -pie -fPIC
2220 ;;
2221 valgrind-massif)
2222 target_exec_default="valgrind"
2223 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2224 ;;
2225 valgrind-memcheck)
2226 target_exec_default="valgrind"
2227 target_exec_args="--track-origins=yes --leak-check=full"
2228 ;;
2229 msvc)
2230 cc_default="c99wrap cl"
2231 ld_default="c99wrap link"
2232 nm_default="dumpbin -symbols"
2233 ar_default="lib"
2234 target_os_default="win32"
2235 ;;
2236 icl)
2237 cc_default="c99wrap -noconv icl"
2238 ld_default="c99wrap xilink"
2239 nm_default="dumpbin -symbols"
2240 ar_default="xilib"
2241 target_os_default="win32"
2242 ;;
2243 gcov)
2244 add_cflags -fprofile-arcs -ftest-coverage
2245 add_ldflags -fprofile-arcs -ftest-coverage
2246 ;;
2247 ?*)
2248 die "Unknown toolchain $toolchain"
2249 ;;
2250 esac
2251
2252 set_default arch cc pkg_config sysinclude target_exec target_os
2253 enabled cross_compile || host_cc_default=$cc
2254 set_default host_cc
2255
2256 if ! $pkg_config --version >/dev/null 2>&1; then
2257 warn "$pkg_config not found, library detection may fail."
2258 pkg_config=false
2259 fi
2260
2261 exesuf() {
2262 case $1 in
2263 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2264 esac
2265 }
2266
2267 EXESUF=$(exesuf $target_os)
2268 HOSTEXESUF=$(exesuf $host_os)
2269
2270 # set temporary file name
2271 : ${TMPDIR:=$TEMPDIR}
2272 : ${TMPDIR:=$TMP}
2273 : ${TMPDIR:=/tmp}
2274
2275 if ! check_cmd mktemp -u XXXXXX; then
2276 # simple replacement for missing mktemp
2277 # NOT SAFE FOR GENERAL USE
2278 mktemp(){
2279 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2280 }
2281 fi
2282
2283 tmpfile(){
2284 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2285 (set -C; exec > $tmp) 2>/dev/null ||
2286 die "Unable to create temporary file in $TMPDIR."
2287 append TMPFILES $tmp
2288 eval $1=$tmp
2289 }
2290
2291 trap 'rm -f -- $TMPFILES' EXIT
2292
2293 tmpfile TMPASM .asm
2294 tmpfile TMPC .c
2295 tmpfile TMPE $EXESUF
2296 tmpfile TMPH .h
2297 tmpfile TMPO .o
2298 tmpfile TMPS .S
2299 tmpfile TMPSH .sh
2300 tmpfile TMPV .ver
2301
2302 unset -f mktemp
2303
2304 chmod +x $TMPE
2305
2306 # make sure we can execute files in $TMPDIR
2307 cat > $TMPSH 2>> $logfile <<EOF
2308 #! /bin/sh
2309 EOF
2310 chmod +x $TMPSH >> $logfile 2>&1
2311 if ! $TMPSH >> $logfile 2>&1; then
2312 cat <<EOF
2313 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2314 variable to another directory and make sure that it is not mounted noexec.
2315 EOF
2316 die "Sanity test failed."
2317 fi
2318
2319 ccc_flags(){
2320 for flag; do
2321 case $flag in
2322 -std=c99) echo -c99 ;;
2323 -mcpu=*) echo -arch ${flag#*=} ;;
2324 -mieee) echo -ieee ;;
2325 -O*|-fast) echo $flag ;;
2326 -fno-math-errno) echo -assume nomath_errno ;;
2327 -g) echo -g3 ;;
2328 -Wall) echo -msg_enable level2 ;;
2329 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2330 -Wl,*) echo $flag ;;
2331 -f*|-W*) ;;
2332 *) echo $flag ;;
2333 esac
2334 done
2335 }
2336
2337 msvc_common_flags(){
2338 for flag; do
2339 case $flag in
2340 # In addition to specifying certain flags under the compiler
2341 # specific filters, they must be specified here as well or else the
2342 # generic catch all at the bottom will print the original flag.
2343 -Wall) ;;
2344 -std=c99) ;;
2345 # Common flags
2346 -fomit-frame-pointer) ;;
2347 -g) echo -Z7 ;;
2348 -fno-math-errno) ;;
2349 -fno-common) ;;
2350 -fno-signed-zeros) ;;
2351 -fPIC) ;;
2352 -mthumb) ;;
2353 -march=*) ;;
2354 -lz) echo zlib.lib ;;
2355 -lavifil32) echo vfw32.lib ;;
2356 -lavicap32) echo vfw32.lib user32.lib ;;
2357 -l*) echo ${flag#-l}.lib ;;
2358 *) echo $flag ;;
2359 esac
2360 done
2361 }
2362
2363 msvc_flags(){
2364 msvc_common_flags "$@"
2365 for flag; do
2366 case $flag in
2367 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2368 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2369 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2370 -wd4996 -wd4273 ;;
2371 esac
2372 done
2373 }
2374
2375 icl_flags(){
2376 msvc_common_flags "$@"
2377 for flag; do
2378 case $flag in
2379 # Despite what Intel's documentation says -Wall, which is supported
2380 # on Windows, does enable remarks so disable them here.
2381 -Wall) echo $flag -Qdiag-disable:remark ;;
2382 -std=c99) echo -Qstd=c99 ;;
2383 esac
2384 done
2385 }
2386
2387 pgi_flags(){
2388 for flag; do
2389 case $flag in
2390 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2391 -fomit-frame-pointer) echo -Mnoframe ;;
2392 -g) echo -gopt ;;
2393 *) echo $flag ;;
2394 esac
2395 done
2396 }
2397
2398 suncc_flags(){
2399 for flag; do
2400 case $flag in
2401 -march=*|-mcpu=*)
2402 case "${flag#*=}" in
2403 native) echo -xtarget=native ;;
2404 v9|niagara) echo -xarch=sparc ;;
2405 ultrasparc) echo -xarch=sparcvis ;;
2406 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2407 i586|pentium) echo -xchip=pentium ;;
2408 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2409 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2410 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2411 pentium4*) echo -xtarget=pentium4 ;;
2412 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2413 *-sse3) echo -xarch=sse3 ;;
2414 core2) echo -xarch=ssse3 -xchip=core2 ;;
2415 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2416 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2417 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2418 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2419 k8|opteron|athlon64|athlon-fx)
2420 echo -xarch=sse2a ;;
2421 athlon*) echo -xarch=pentium_proa ;;
2422 esac
2423 ;;
2424 -std=c99) echo -xc99 ;;
2425 -fomit-frame-pointer) echo -xregs=frameptr ;;
2426 -fPIC) echo -KPIC -xcode=pic32 ;;
2427 -W*,*) echo $flag ;;
2428 -f*-*|-W*|-mimpure-text) ;;
2429 -shared) echo -G ;;
2430 *) echo $flag ;;
2431 esac
2432 done
2433 }
2434
2435 tms470_flags(){
2436 for flag; do
2437 case $flag in
2438 -march=*|-mcpu=*)
2439 case "${flag#*=}" in
2440 armv7-a|cortex-a*) echo -mv=7a8 ;;
2441 armv7-r|cortex-r*) echo -mv=7r4 ;;
2442 armv7-m|cortex-m*) echo -mv=7m3 ;;
2443 armv6*|arm11*) echo -mv=6 ;;
2444 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2445 echo -mv=5e ;;
2446 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2447 esac
2448 ;;
2449 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2450 -mfpu=vfp) echo --float_support=vfpv2 ;;
2451 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2452 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2453 -msoft-float) echo --float_support=vfplib ;;
2454 -O[0-3]|-mf=*) echo $flag ;;
2455 -g) echo -g -mn ;;
2456 -pds=*) echo $flag ;;
2457 -D*|-I*) echo $flag ;;
2458 --gcc|--abi=*) echo $flag ;;
2459 -me) echo $flag ;;
2460 esac
2461 done
2462 }
2463
2464 probe_cc(){
2465 pfx=$1
2466 _cc=$2
2467
2468 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2469 unset _ld_o _ldflags _ld_lib _ld_path
2470 unset _depflags _DEPCMD _DEPFLAGS
2471 _flags_filter=echo
2472
2473 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2474 _type=llvm_gcc
2475 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2476 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2477 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2478 _cflags_speed='-O3'
2479 _cflags_size='-Os'
2480 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2481 _type=gcc
2482 gcc_version=$($_cc --version | head -n1)
2483 gcc_basever=$($_cc -dumpversion)
2484 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2485 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2486 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2487 if ! $_cc -dumpversion | grep -q '^2\.'; then
2488 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2489 fi
2490 _cflags_speed='-O3'
2491 _cflags_size='-Os'
2492 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2493 _type=icc
2494 _ident=$($_cc --version | head -n1)
2495 _depflags='-MMD'
2496 _cflags_speed='-O3'
2497 _cflags_size='-Os'
2498 _cflags_noopt='-O1'
2499 elif $_cc -v 2>&1 | grep -q xlc; then
2500 _type=xlc
2501 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2502 _cflags_speed='-O5'
2503 _cflags_size='-O5 -qcompact'
2504 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2505 _type=ccc
2506 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2507 _DEPFLAGS='-M'
2508 _cflags_speed='-fast'
2509 _cflags_size='-O1'
2510 _flags_filter=ccc_flags
2511 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2512 test -d "$sysroot" || die "No valid sysroot specified."
2513 _type=armcc
2514 _ident=$($_cc --vsn | head -n1)
2515 armcc_conf="$PWD/armcc.conf"
2516 $_cc --arm_linux_configure \
2517 --arm_linux_config_file="$armcc_conf" \
2518 --configure_sysroot="$sysroot" \
2519 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2520 die "Error creating armcc configuration file."
2521 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2522 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2523 as_default="${cross_prefix}gcc"
2524 _depflags='-MMD'
2525 _cflags_speed='-O3'
2526 _cflags_size='-Os'
2527 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2528 _type=tms470
2529 _ident=$($_cc -version | head -n1 | tr -s ' ')
2530 _flags='--gcc --abi=eabi -me'
2531 _cc_e='-ppl -fe=$@'
2532 _cc_o='-fe=$@'
2533 _depflags='-ppa -ppd=$(@:.o=.d)'
2534 _cflags_speed='-O3 -mf=5'
2535 _cflags_size='-O3 -mf=2'
2536 _flags_filter=tms470_flags
2537 elif $_cc -v 2>&1 | grep -q clang; then
2538 _type=clang
2539 _ident=$($_cc --version | head -n1)
2540 _depflags='-MMD'
2541 _cflags_speed='-O3'
2542 _cflags_size='-Os'
2543 elif $_cc -V 2>&1 | grep -q Sun; then
2544 _type=suncc
2545 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2546 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2547 _DEPFLAGS='-xM1 -xc99'
2548 _ldflags='-std=c99'
2549 _cflags_speed='-O5'
2550 _cflags_size='-O5 -xspace'
2551 _flags_filter=suncc_flags
2552 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2553 _type=pathscale
2554 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2555 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2556 _cflags_speed='-O2'
2557 _cflags_size='-Os'
2558 _flags_filter='filter_out -Wdisabled-optimization'
2559 elif $_cc -v 2>&1 | grep -q Open64; then
2560 _type=open64
2561 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2562 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2563 _cflags_speed='-O2'
2564 _cflags_size='-Os'
2565 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2566 elif $_cc -V 2>&1 | grep -q Portland; then
2567 _type=pgi
2568 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2569 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2570 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2571 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2572 _cflags_noopt="-O1"
2573 _flags_filter=pgi_flags
2574 elif $_cc 2>&1 | grep -q Microsoft; then
2575 _type=msvc
2576 _ident=$($cc 2>&1 | head -n1)
2577 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2578 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2579 _cflags_speed="-O2"
2580 _cflags_size="-O1"
2581 # Nonstandard output options, to avoid msys path conversion issues.
2582 # Relies on wrapper to remap it.
2583 if $_cc 2>&1 | grep -q Linker; then
2584 _ld_o='-out $@'
2585 else
2586 _ld_o='-Fe$@'
2587 fi
2588 _cc_o='-Fo $@'
2589 _cc_e='-P -Fi $@'
2590 _flags_filter=msvc_flags
2591 _ld_lib='lib%.a'
2592 _ld_path='-libpath:'
2593 _flags='-nologo'
2594 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2595 if [ $pfx = hostcc ]; then
2596 append _cflags -Dsnprintf=_snprintf
2597 fi
2598 elif $_cc 2>&1 | grep -q Intel; then
2599 _type=icl
2600 _ident=$($cc 2>&1 | head -n1)
2601 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2602 # Not only is O3 broken on 13.x+ but it is slower on all previous
2603 # versions (tested) as well.
2604 _cflags_speed="-O2"
2605 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2606 # Nonstandard output options, to avoid msys path conversion issues.
2607 # Relies on wrapper to remap it.
2608 if $_cc 2>&1 | grep -q Linker; then
2609 _ld_o='-out $@'
2610 else
2611 _ld_o='-Fe$@'
2612 fi
2613 _cc_o='-Fo $@'
2614 _cc_e='-P'
2615 _flags_filter=icl_flags
2616 _ld_lib='lib%.a'
2617 _ld_path='-libpath:'
2618 # -Qdiag-error to make icl error when seeing certain unknown arguments
2619 _flags='-nologo -Qdiag-error:4044,10157'
2620 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2621 # with MSVC which enables it by default.
2622 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2623 if [ $pfx = hostcc ]; then
2624 append _cflags -Dsnprintf=_snprintf
2625 fi
2626 fi
2627
2628 eval ${pfx}_type=\$_type
2629 eval ${pfx}_ident=\$_ident
2630 }
2631
2632 set_ccvars(){
2633 eval ${1}_C=\${_cc_c-\${${1}_C}}
2634 eval ${1}_E=\${_cc_e-\${${1}_E}}
2635 eval ${1}_O=\${_cc_o-\${${1}_O}}
2636
2637 if [ -n "$_depflags" ]; then
2638 eval ${1}_DEPFLAGS=\$_depflags
2639 else
2640 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2641 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2642 eval DEP${1}FLAGS=\$_flags
2643 fi
2644 }
2645
2646 probe_cc cc "$cc"
2647 cflags_filter=$_flags_filter
2648 cflags_speed=$_cflags_speed
2649 cflags_size=$_cflags_size
2650 cflags_noopt=$_cflags_noopt
2651 add_cflags $_flags $_cflags
2652 cc_ldflags=$_ldflags
2653 set_ccvars CC
2654
2655 probe_cc hostcc "$host_cc"
2656 host_cflags_filter=$_flags_filter
2657 add_host_cflags $_flags $_cflags
2658 set_ccvars HOSTCC
2659
2660 test -n "$cc_type" && enable $cc_type ||
2661 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2662
2663 : ${as_default:=$cc}
2664 : ${dep_cc_default:=$cc}
2665 : ${ld_default:=$cc}
2666 : ${host_ld_default:=$host_cc}
2667 set_default ar as dep_cc ld host_ld
2668
2669 probe_cc as "$as"
2670 asflags_filter=$_flags_filter
2671 add_asflags $_flags $_cflags
2672 set_ccvars AS
2673
2674 probe_cc ld "$ld"
2675 ldflags_filter=$_flags_filter
2676 add_ldflags $_flags $_ldflags
2677 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2678 LD_O=${_ld_o-$LD_O}
2679 LD_LIB=${_ld_lib-$LD_LIB}
2680 LD_PATH=${_ld_path-$LD_PATH}
2681
2682 probe_cc hostld "$host_ld"
2683 host_ldflags_filter=$_flags_filter
2684 add_host_ldflags $_flags $_ldflags
2685 HOSTLD_O=${_ld_o-$HOSTLD_O}
2686
2687 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2688 probe_cc depcc "$dep_cc"
2689 CCDEP=${_DEPCMD:-$DEPCMD}
2690 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2691 DEPCCFLAGS=$_flags
2692 fi
2693
2694 if $ar 2>&1 | grep -q Microsoft; then
2695 arflags="-nologo"
2696 ar_o='-out:$@'
2697 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2698 arflags="rq"
2699 ar_o='$@'
2700 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2701 arflags='-Xany -r -c'
2702 ar_o='$@'
2703 else
2704 arflags="rc"
2705 ar_o='$@'
2706 fi
2707
2708 add_cflags $extra_cflags
2709 add_asflags $extra_cflags
2710
2711 if test -n "$sysroot"; then
2712 case "$cc_type" in
2713 gcc|llvm_gcc|clang)
2714 add_cppflags --sysroot="$sysroot"
2715 add_ldflags --sysroot="$sysroot"
2716 ;;
2717 tms470)
2718 add_cppflags -I"$sysinclude"
2719 add_ldflags --sysroot="$sysroot"
2720 ;;
2721 esac
2722 fi
2723
2724 if test "$cpu" = host; then
2725 enabled cross_compile &&
2726 die "--cpu=host makes no sense when cross-compiling."
2727
2728 case "$cc_type" in
2729 gcc|llvm_gcc)
2730 check_native(){
2731 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2732 sed -n "/cc1.*$1=/{
2733 s/.*$1=\\([^ ]*\\).*/\\1/
2734 p
2735 q
2736 }" $TMPE
2737 }
2738 cpu=$(check_native -march || check_native -mcpu)
2739 ;;
2740 esac
2741
2742 test "${cpu:-host}" = host &&
2743 die "--cpu=host not supported with compiler $cc"
2744 fi
2745
2746 # Deal with common $arch aliases
2747 case "$arch" in
2748 aarch64|arm64)
2749 arch="aarch64"
2750 ;;
2751 arm*)
2752 arch="arm"
2753 ;;
2754 mips*|IP*)
2755 arch="mips"
2756 ;;
2757 parisc*|hppa*)
2758 arch="parisc"
2759 ;;
2760 "Power Macintosh"|ppc*|powerpc*)
2761 arch="ppc"
2762 ;;
2763 s390|s390x)
2764 arch="s390"
2765 ;;
2766 sh4|sh)
2767 arch="sh4"
2768 ;;
2769 sun4u|sparc*)
2770 arch="sparc"
2771 ;;
2772 tilegx|tile-gx)
2773 arch="tilegx"
2774 ;;
2775 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2776 arch="x86"
2777 ;;
2778 esac
2779
2780 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2781 enable $arch
2782
2783 # Add processor-specific flags
2784 if enabled aarch64; then
2785
2786 case $cpu in
2787 armv*)
2788 cpuflags="-march=$cpu"
2789 ;;
2790 *)
2791 cpuflags="-mcpu=$cpu"
2792 ;;
2793 esac
2794
2795 elif enabled alpha; then
2796
2797 cpuflags="-mcpu=$cpu"
2798
2799 elif enabled arm; then
2800
2801 check_arm_arch() {
2802 check_cpp_condition stddef.h \
2803 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2804 $cpuflags
2805 }
2806
2807 probe_arm_arch() {
2808 if check_arm_arch 4; then echo armv4;
2809 elif check_arm_arch 4T; then echo armv4t;
2810 elif check_arm_arch 5; then echo armv5;
2811 elif check_arm_arch 5E; then echo armv5e;
2812 elif check_arm_arch 5T; then echo armv5t;
2813 elif check_arm_arch 5TE; then echo armv5te;
2814 elif check_arm_arch 5TEJ; then echo armv5te;
2815 elif check_arm_arch 6; then echo armv6;
2816 elif check_arm_arch 6J; then echo armv6j;
2817 elif check_arm_arch 6K; then echo armv6k;
2818 elif check_arm_arch 6Z; then echo armv6z;
2819 elif check_arm_arch 6ZK; then echo armv6zk;
2820 elif check_arm_arch 6T2; then echo armv6t2;
2821 elif check_arm_arch 7; then echo armv7;
2822 elif check_arm_arch 7A 7_A; then echo armv7-a;
2823 elif check_arm_arch 7R 7_R; then echo armv7-r;
2824 elif check_arm_arch 7M 7_M; then echo armv7-m;
2825 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2826 elif check_arm_arch 8A 8_A; then echo armv8-a;
2827 fi
2828 }
2829
2830 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2831
2832 case $cpu in
2833 armv*)
2834 cpuflags="-march=$cpu"
2835 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2836 ;;
2837 *)
2838 cpuflags="-mcpu=$cpu"
2839 case $cpu in
2840 cortex-a*) subarch=armv7a ;;
2841 cortex-r*) subarch=armv7r ;;
2842 cortex-m*) enable thumb; subarch=armv7m ;;
2843 arm11*) subarch=armv6 ;;
2844 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2845 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2846 *) subarch=$(probe_arm_arch) ;;
2847 esac
2848 ;;
2849 esac
2850
2851 case "$subarch" in
2852 armv5t*) enable fast_clz ;;
2853 armv[6-8]*) enable fast_clz fast_unaligned ;;
2854 esac
2855
2856 elif enabled avr32; then
2857
2858 case $cpu in
2859 ap7[02]0[0-2])
2860 subarch="avr32_ap"
2861 cpuflags="-mpart=$cpu"
2862 ;;
2863 ap)
2864 subarch="avr32_ap"
2865 cpuflags="-march=$cpu"
2866 ;;
2867 uc3[ab]*)
2868 subarch="avr32_uc"
2869 cpuflags="-mcpu=$cpu"
2870 ;;
2871 uc)
2872 subarch="avr32_uc"
2873 cpuflags="-march=$cpu"
2874 ;;
2875 esac
2876
2877 elif enabled bfin; then
2878
2879 cpuflags="-mcpu=$cpu"
2880
2881 elif enabled mips; then
2882
2883 cpuflags="-march=$cpu"
2884
2885 elif enabled ppc; then
2886
2887 case $(tolower $cpu) in
2888 601|ppc601|powerpc601)
2889 cpuflags="-mcpu=601"
2890 disable altivec
2891 ;;
2892 603*|ppc603*|powerpc603*)
2893 cpuflags="-mcpu=603"
2894 disable altivec
2895 ;;
2896 604*|ppc604*|powerpc604*)
2897 cpuflags="-mcpu=604"
2898 disable altivec
2899 ;;
2900 g3|75*|ppc75*|powerpc75*)
2901 cpuflags="-mcpu=750"
2902 disable altivec
2903 ;;
2904 g4|745*|ppc745*|powerpc745*)
2905 cpuflags="-mcpu=7450"
2906 ;;
2907 74*|ppc74*|powerpc74*)
2908 cpuflags="-mcpu=7400"
2909 ;;
2910 g5|970|ppc970|powerpc970)
2911 cpuflags="-mcpu=970"
2912 ;;
2913 power[3-7]*)
2914 cpuflags="-mcpu=$cpu"
2915 ;;
2916 cell)
2917 cpuflags="-mcpu=cell"
2918 enable ldbrx
2919 ;;
2920 e500mc)
2921 cpuflags="-mcpu=e500mc"
2922 disable altivec
2923 ;;
2924 e500v2)
2925 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2926 disable altivec
2927 ;;
2928 e500)
2929 cpuflags="-mcpu=8540 -mhard-float"
2930 disable altivec
2931 ;;
2932 esac
2933
2934 elif enabled sparc; then
2935
2936 case $cpu in
2937 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2938 cpuflags="-mcpu=$cpu"
2939 disable vis
2940 ;;
2941 ultrasparc*|niagara[234])
2942 cpuflags="-mcpu=$cpu"
2943 ;;
2944 esac
2945
2946 elif enabled x86; then
2947
2948 case $cpu in
2949 i[345]86|pentium)
2950 cpuflags="-march=$cpu"
2951 disable mmx
2952 ;;
2953 # targets that do NOT support nopl and conditional mov (cmov)
2954 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2955 cpuflags="-march=$cpu"
2956 disable i686
2957 ;;
2958 # targets that do support nopl and conditional mov (cmov)
2959 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2960 cpuflags="-march=$cpu"
2961 enable i686
2962 enable fast_cmov
2963 ;;
2964 # targets that do support conditional mov but on which it's slow
2965 pentium4|pentium4m|prescott|nocona)
2966 cpuflags="-march=$cpu"
2967 enable i686
2968 disable fast_cmov
2969 ;;
2970 esac
2971
2972 fi
2973
2974 if [ "$cpu" != generic ]; then
2975 add_cflags $cpuflags
2976 add_asflags $cpuflags
2977 fi
2978
2979 # compiler sanity check
2980 check_exec <<EOF
2981 int main(void){ return 0; }
2982 EOF
2983 if test "$?" != 0; then
2984 echo "$cc is unable to create an executable file."
2985 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2986 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2987 echo "Only do this if you know what cross compiling means."
2988 fi
2989 die "C compiler test failed."
2990 fi
2991
2992 add_cppflags -D_ISOC99_SOURCE
2993 check_cflags -std=c99
2994 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2995 #include <stdlib.h>
2996 EOF
2997 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2998 #include <stdlib.h>
2999 EOF
3000
3001 check_host_cflags -std=c99
3002 check_host_cflags -Wall
3003
3004 check_64bit(){
3005 arch32=$1
3006 arch64=$2
3007 expr=$3
3008 check_code cc "" "int test[2*($expr) - 1]" &&
3009 subarch=$arch64 || subarch=$arch32
3010 }
3011
3012 case "$arch" in
3013 aarch64|alpha|ia64)
3014 spic=$shared
3015 ;;
3016 mips)
3017 check_64bit mips mips64 '_MIPS_SIM > 1'
3018 spic=$shared
3019 ;;
3020 parisc)
3021 check_64bit parisc parisc64 'sizeof(void *) > 4'
3022 spic=$shared
3023 ;;
3024 ppc)
3025 check_64bit ppc ppc64 'sizeof(void *) > 4'
3026 spic=$shared
3027 ;;
3028 sparc)
3029 check_64bit sparc sparc64 'sizeof(void *) > 4'
3030 spic=$shared
3031 ;;
3032 x86)
3033 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3034 if test "$subarch" = "x86_64"; then
3035 spic=$shared
3036 fi
3037 ;;
3038 esac
3039
3040 enable $subarch
3041 enabled spic && enable_weak pic
3042
3043 # OS specific
3044 case $target_os in
3045 aix)
3046 SHFLAGS=-shared
3047 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3048 enabled shared && add_ldflags -Wl,-brtl
3049 ;;
3050 haiku)
3051 prefix_default="/boot/common"
3052 network_extralibs="-lnetwork"
3053 host_libs=
3054 ;;
3055 sunos)
3056 SHFLAGS='-shared -Wl,-h,$$(@F)'
3057 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3058 network_extralibs="-lsocket -lnsl"
3059 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3060 # When using suncc to build, the Solaris linker will mark
3061 # an executable with each instruction set encountered by
3062 # the Solaris assembler. As our libraries contain their own
3063 # guards for processor-specific code, instead suppress
3064 # generation of the HWCAPS ELF section on Solaris x86 only.
3065 enabled_all suncc x86 &&
3066 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3067 add_ldflags -Wl,-M,mapfile
3068 nm_default='nm -P -g'
3069 ;;
3070 netbsd)
3071 disable symver
3072 oss_indev_extralibs="-lossaudio"
3073 oss_outdev_extralibs="-lossaudio"
3074 ;;
3075 openbsd|bitrig)
3076 disable symver
3077 SHFLAGS='-shared'
3078 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3079 SLIB_INSTALL_LINKS=
3080 oss_indev_extralibs="-lossaudio"
3081 oss_outdev_extralibs="-lossaudio"
3082 ;;
3083 dragonfly)
3084 disable symver
3085 ;;
3086 freebsd)
3087 ;;
3088 bsd/os)
3089 add_extralibs -lpoll -lgnugetopt
3090 ;;
3091 darwin)
3092 gas="gas-preprocessor.pl $cc"
3093 enabled ppc && add_asflags -force_cpusubtype_ALL
3094 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3095 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3096 add_ldflags -Wl,-dynamic,-search_paths_first
3097 SLIBSUF=".dylib"
3098 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3099 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3100 objformat="macho"
3101 enabled x86_64 && objformat="macho64"
3102 enabled_any pic shared ||
3103 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3104 ;;
3105 mingw32*)
3106 if test $target_os = "mingw32ce"; then
3107 disable network
3108 else
3109 target_os=mingw32
3110 fi
3111 LIBTARGET=i386
3112 if enabled x86_64; then
3113 LIBTARGET="i386:x86-64"
3114 elif enabled arm; then
3115 LIBTARGET=arm-wince
3116 fi
3117 check_ldflags -Wl,--nxcompat
3118 check_ldflags -Wl,--dynamicbase
3119 shlibdir_default="$bindir_default"
3120 SLIBPREF=""
3121 SLIBSUF=".dll"
3122 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3123 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3124 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3125 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3126 SLIB_INSTALL_LINKS=
3127 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3128 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3129 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3130 objformat="win32"
3131 dlltool="${cross_prefix}dlltool"
3132 ranlib=:
3133 enable dos_paths
3134 ;;
3135 win32|win64)
3136 if enabled shared; then
3137 # Link to the import library instead of the normal static library
3138 # for shared libs.
3139 LD_LIB='%.lib'
3140 # Cannot build shared and static libs at the same time with MSVC.
3141 disable static
3142 fi
3143 shlibdir_default="$bindir_default"
3144 SLIBPREF=""
3145 SLIBSUF=".dll"
3146 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3147 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3148 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3149 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3150 SLIB_INSTALL_LINKS=
3151 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3152 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3153 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3154 objformat="win32"
3155 ranlib=:
3156 enable dos_paths
3157 ;;
3158 cygwin*)
3159 target_os=cygwin
3160 shlibdir_default="$bindir_default"
3161 SLIBPREF="cyg"
3162 SLIBSUF=".dll"
3163 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3164 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3165 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3166 SLIB_INSTALL_LINKS=
3167 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3168 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3169 objformat="win32"
3170 enable dos_paths
3171 ;;
3172 *-dos|freedos|opendos)
3173 network_extralibs="-lsocket"
3174 objformat="coff"
3175 enable dos_paths
3176 add_cppflags -U__STRICT_ANSI__
3177 ;;
3178 linux)
3179 enable dv1394
3180 ;;
3181 irix*)
3182 target_os=irix
3183 ranlib="echo ignoring ranlib"
3184 ;;
3185 os/2*)
3186 ln_s="cp -f"
3187 objformat="aout"
3188 add_cppflags -D_GNU_SOURCE
3189 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3190 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3191 LIBSUF="_s.a"
3192 SLIBPREF=""
3193 SLIBSUF=".dll"
3194 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3195 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3196 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3197 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3198 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3199 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3200 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3201 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3202 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3203 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3204 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3205 enable dos_paths
3206 ;;
3207 gnu/kfreebsd)
3208 add_cppflags -D_BSD_SOURCE
3209 ;;
3210 gnu)
3211 ;;
3212 qnx)
3213 add_cppflags -D_QNX_SOURCE
3214 network_extralibs="-lsocket"
3215 ;;
3216 symbian)
3217 SLIBSUF=".dll"
3218 enable dos_paths
3219 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3220 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3221 add_ldflags -Wl,--target1-abs,--no-undefined \
3222 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3223 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3224 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3225 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3226 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3227 ;;
3228 osf1)
3229 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3230 ;;
3231 minix)
3232 ;;
3233 plan9)
3234 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3235 -D_REENTRANT_SOURCE \
3236 -D_RESEARCH_SOURCE \
3237 -DFD_SETSIZE=96 \
3238 -DHAVE_SOCK_OPTS
3239 add_compat strtod.o strtod=avpriv_strtod
3240 network_extralibs='-lbsd'
3241 exeobjs=compat/plan9/main.o
3242 disable avserver
3243 cp_f='cp'
3244 ;;
3245 none)
3246 ;;
3247 *)
3248 die "Unknown OS '$target_os'."
3249 ;;
3250 esac
3251
3252 # determine libc flavour
3253
3254 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3255 if check_cpp_condition features.h "defined __UCLIBC__"; then
3256 libc_type=uclibc
3257 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3258 elif check_cpp_condition features.h "defined __GLIBC__"; then
3259 libc_type=glibc
3260 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3261 # MinGW headers can be installed on Cygwin, so check for newlib first.
3262 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3263 libc_type=newlib
3264 add_cppflags -U__STRICT_ANSI__
3265 elif check_header _mingw.h; then
3266 libc_type=mingw
3267 check_cpp_condition _mingw.h \
3268 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3269 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3270 die "ERROR: MinGW runtime version must be >= 3.15."
3271 add_cppflags -U__STRICT_ANSI__
3272 elif check_func_headers stdlib.h _get_doserrno; then
3273 libc_type=msvcrt
3274 add_compat strtod.o strtod=avpriv_strtod
3275 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3276 _snprintf=avpriv_snprintf \
3277 vsnprintf=avpriv_vsnprintf
3278 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3279 # 0x601 by default unless something else is set by the user.
3280 # This can easily lead to us detecting functions only present
3281 # in such new versions and producing binaries requiring windows 7.0.
3282 # Therefore explicitly set the default to XP unless the user has
3283 # set something else on the command line.
3284 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3285 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3286 libc_type=klibc
3287 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3288 libc_type=bionic
3289 add_compat strtod.o strtod=avpriv_strtod
3290 fi
3291
3292 test -n "$libc_type" && enable $libc_type
3293
3294 # hacks for compiler/libc/os combinations
3295
3296 if enabled_all tms470 glibc; then
3297 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3298 add_cppflags -D__USER_LABEL_PREFIX__=
3299 add_cppflags -D__builtin_memset=memset
3300 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3301 add_cflags -pds=48 # incompatible redefinition of macro
3302 fi
3303
3304 if enabled_all ccc glibc; then
3305 add_ldflags -Wl,-z,now # calls to libots crash without this
3306 fi
3307
3308 esc(){
3309 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3310 }
3311
3312 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3313
3314 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3315
3316 set_default $PATHS_LIST
3317 set_default nm
3318
3319 # we need to build at least one lib type
3320 if ! enabled_any static shared; then
3321 cat <<EOF
3322 At least one library type must be built.
3323 Specify --enable-static to build the static libraries or --enable-shared to
3324 build the shared libraries as well. To only build the shared libraries specify
3325 --disable-static in addition to --enable-shared.
3326 EOF
3327 exit 1;
3328 fi
3329
3330 die_license_disabled() {
3331 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3332 }
3333
3334 die_license_disabled gpl libcdio
3335 die_license_disabled gpl libx264
3336 die_license_disabled gpl libxavs
3337 die_license_disabled gpl libxvid
3338 die_license_disabled gpl x11grab
3339
3340 die_license_disabled nonfree libfaac
3341 die_license_disabled nonfree libfdk_aac
3342 die_license_disabled nonfree openssl
3343
3344 die_license_disabled version3 libopencore_amrnb
3345 die_license_disabled version3 libopencore_amrwb
3346 die_license_disabled version3 libvo_aacenc
3347 die_license_disabled version3 libvo_amrwbenc
3348
3349 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3350
3351 disabled optimizations || check_cflags -fomit-frame-pointer
3352
3353 enable_weak_pic() {
3354 disabled pic && return
3355 enable pic
3356 add_cppflags -DPIC
3357 case "$target_os" in
3358 mingw*|cygwin*)
3359 ;;
3360 *)
3361 add_cflags -fPIC
3362 ;;
3363 esac
3364 add_asflags -fPIC
3365 }
3366
3367 enabled pic && enable_weak_pic
3368
3369 check_cc <<EOF || die "Symbol mangling check failed."
3370 int ff_extern;
3371 EOF
3372 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3373 extern_prefix=${sym%%ff_extern*}
3374
3375 check_cc <<EOF && enable_weak inline_asm
3376 void foo(void) { __asm__ volatile ("" ::); }
3377 EOF
3378
3379 _restrict=
3380 for restrict_keyword in restrict __restrict__ __restrict; do
3381 check_cc <<EOF && _restrict=$restrict_keyword && break
3382 void foo(char * $restrict_keyword p);
3383 EOF
3384 done
3385
3386 check_cc <<EOF && enable pragma_deprecated
3387 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3388 EOF
3389
3390 check_cc <<EOF && enable attribute_packed
3391 struct { int x; } __attribute__((packed)) x;
3392 EOF
3393
3394 check_cc <<EOF && enable attribute_may_alias
3395 union { int x; } __attribute__((may_alias)) x;
3396 EOF
3397
3398 check_cc <<EOF || die "endian test failed"
3399 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3400 EOF
3401 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3402
3403 check_inline_asm inline_asm_labels '"1:\n"'
3404
3405 if enabled alpha; then
3406
3407 check_cflags -mieee
3408
3409 elif enabled arm; then
3410
3411 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3412 enabled thumb && check_cflags -mthumb || check_cflags -marm
3413 nogas=die
3414
3415 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3416 enable vfp_args
3417 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3418 case "${cross_prefix:-$cc}" in
3419 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3420 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3421 __asm__ (".eabi_attribute 28, 1");
3422 int main(void) { return 0; }
3423 EOF
3424 esac
3425 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3426 fi
3427
3428 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3429 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3430 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3431 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3432 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3433 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3434
3435 [ $target_os = linux ] ||
3436 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3437 $ARCH_EXT_LIST_ARM
3438
3439 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3440 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3441
3442 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3443
3444 elif enabled mips; then
3445
3446 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3447
3448 elif enabled parisc; then
3449
3450 if enabled gcc; then
3451 case $($cc -dumpversion) in
3452 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3453 esac
3454 fi
3455
3456 elif enabled ppc; then
3457
3458 enable local_aligned_8 local_aligned_16
3459
3460 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3461 check_inline_asm ibm_asm '"add 0, 0, 0"'
3462 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3463 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3464
3465 # AltiVec flags: The FSF version of GCC differs from the Apple version
3466 if enabled altivec; then
3467 nogas=warn
3468 check_cflags -maltivec -mabi=altivec &&
3469 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3470 check_cflags -faltivec
3471
3472 # check if our compiler supports Motorola AltiVec C API
3473 check_cc <<EOF || disable altivec
3474 $inc_altivec_h
3475 int main(void) {
3476 vector signed int v1 = (vector signed int) { 0 };
3477 vector signed int v2 = (vector signed int) { 1 };
3478 v1 = vec_add(v1, v2);
3479 return 0;
3480 }
3481 EOF
3482
3483 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3484 fi
3485
3486 elif enabled sparc; then
3487
3488 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3489
3490 elif enabled x86; then
3491
3492 check_builtin rdtsc intrin.h "__rdtsc()"
3493 check_builtin mm_empty mmintrin.h "_mm_empty()"
3494
3495 enable local_aligned_8 local_aligned_16
3496
3497 # check whether EBP is available on x86
3498 # As 'i' is stored on the stack, this program will crash
3499 # if the base pointer is used to access it because the
3500 # base pointer is cleared in the inline assembly code.
3501 check_exec_crash <<EOF && enable ebp_available
3502 volatile int i=0;
3503 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3504 return i;
3505 EOF
3506
3507 # check whether EBX is available on x86
3508 check_inline_asm ebx_available '""::"b"(0)' &&
3509 check_inline_asm ebx_available '"":::"%ebx"'
3510
3511 # check whether xmm clobbers are supported
3512 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3513
3514 # check whether binutils is new enough to compile SSSE3/MMXEXT
3515 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3516 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3517
3518 if ! disabled_any asm mmx yasm; then
3519 if check_cmd $yasmexe --version; then
3520 enabled x86_64 && yasm_extra="-m amd64"
3521 yasm_debug="-g dwarf2"
3522 elif check_cmd nasm -v; then
3523 yasmexe=nasm
3524 yasm_debug="-g -F dwarf"
3525 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3526 fi
3527
3528 YASMFLAGS="-f $objformat $yasm_extra"
3529 enabled pic && append YASMFLAGS "-DPIC"
3530 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3531 case "$objformat" in
3532 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3533 esac
3534
3535 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3536 die "yasm not found, use --disable-yasm for a crippled build"
3537 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3538 check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3539 fi
3540
3541 case "$cpu" in
3542 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3543 disable fast_clz
3544 ;;
3545 esac
3546
3547 fi
3548
3549 if enabled asm; then
3550 as=${gas:=$as}
3551 check_as <<EOF && enable gnu_as || \
3552 $nogas "GNU assembler not found, install gas-preprocessor"
3553 .macro m n
3554 \n: .int 0
3555 .endm
3556 m x
3557 EOF
3558 fi
3559
3560 check_ldflags -Wl,--as-needed
3561
3562 if check_func dlopen; then
3563 ldl=
3564 elif check_func dlopen -ldl; then
3565 ldl=-ldl
3566 fi
3567
3568 if ! disabled network; then
3569 check_type "sys/types.h sys/socket.h" socklen_t
3570 check_type netdb.h "struct addrinfo"
3571 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3572 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3573 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3574 check_type netinet/in.h "struct sockaddr_in6"
3575 check_type poll.h "struct pollfd"
3576 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3577 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3578 check_type netinet/sctp.h "struct sctp_event_subscribe"
3579 check_func getaddrinfo $network_extralibs
3580 check_func getservbyport $network_extralibs
3581 # Prefer arpa/inet.h over winsock2
3582 if check_header arpa/inet.h ; then
3583 check_func closesocket
3584 elif check_header winsock2.h ; then
3585 check_func_headers winsock2.h closesocket -lws2 &&
3586 network_extralibs="-lws2" ||
3587 { check_func_headers winsock2.h closesocket -lws2_32 &&
3588 network_extralibs="-lws2_32"; }
3589 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3590 check_type ws2tcpip.h socklen_t
3591 check_type ws2tcpip.h "struct addrinfo"
3592 check_type ws2tcpip.h "struct group_source_req"
3593 check_type ws2tcpip.h "struct ip_mreq_source"
3594 check_type ws2tcpip.h "struct ipv6_mreq"
3595 check_type winsock2.h "struct pollfd"
3596 check_type ws2tcpip.h "struct sockaddr_in6"
3597 check_type ws2tcpip.h "struct sockaddr_storage"
3598 check_struct winsock2.h "struct sockaddr" sa_len
3599 else
3600 disable network
3601 fi
3602 fi
3603
3604 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3605 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3606
3607 check_func fcntl
3608 check_func fork
3609 check_func_headers stdlib.h getenv
3610 check_func gethrtime
3611 check_func getopt
3612 check_func getrusage
3613 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3614 check_func gettimeofday
3615 check_func inet_aton $network_extralibs
3616 check_func isatty
3617 check_func localtime_r
3618 check_func ${malloc_prefix}memalign && enable memalign
3619 check_func mkstemp
3620 check_func mmap
3621 check_func mprotect
3622 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3623 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3624 check_func setrlimit
3625 check_func strerror_r
3626 check_func strptime
3627 check_func strtok_r
3628 check_func sched_getaffinity
3629 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3630 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3631 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3632 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3633 check_func sysconf
3634 check_func sysctl
3635 check_func usleep
3636 check_func_headers io.h setmode
3637 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3638 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3639 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3640 check_func_headers windows.h GetProcessAffinityMask
3641 check_func_headers windows.h GetProcessTimes
3642 check_func_headers windows.h GetSystemTimeAsFileTime
3643 check_func_headers windows.h MapViewOfFile
3644 check_func_headers windows.h SetConsoleTextAttribute
3645 check_func_headers windows.h Sleep
3646 check_func_headers windows.h VirtualAlloc
3647
3648 check_header direct.h
3649 check_header dlfcn.h
3650 check_header dxva.h
3651 check_header dxva2api.h
3652 check_header io.h
3653 check_header malloc.h
3654 check_header poll.h
3655 check_header sys/mman.h
3656 check_header sys/param.h
3657 check_header sys/resource.h
3658 check_header sys/select.h
3659 check_header sys/time.h
3660 check_header unistd.h
3661 check_header vdpau/vdpau.h
3662 check_header vdpau/vdpau_x11.h
3663 check_header VideoDecodeAcceleration/VDADecoder.h
3664 check_header windows.h
3665 check_header X11/extensions/XvMClib.h
3666
3667 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3668 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3669
3670 if ! disabled w32threads && ! enabled pthreads; then
3671 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3672 fi
3673
3674 # check for some common methods of building with pthread support
3675 # do this before the optional library checks as some of them require pthreads
3676 if ! disabled pthreads && ! enabled w32threads; then
3677 enable pthreads
3678 if check_func pthread_create; then
3679 :
3680 elif check_func pthread_create -pthread; then
3681 add_cflags -pthread
3682 add_extralibs -pthread
3683 elif check_func pthread_create -pthreads; then
3684 add_cflags -pthreads
3685 add_extralibs -pthreads
3686 elif check_func pthread_create -lpthreadGC2; then
3687 add_extralibs -lpthreadGC2
3688 elif ! check_lib pthread.h pthread_create -lpthread; then
3689 disable pthreads
3690 fi
3691 fi
3692
3693 for thread in $THREADS_LIST; do
3694 if enabled $thread; then
3695 test -n "$thread_type" &&
3696 die "ERROR: Only one thread type must be selected." ||
3697 thread_type="$thread"
3698 fi
3699 done
3700
3701 enabled sync_val_compare_and_swap && enable atomics_gcc
3702 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3703 enabled MemoryBarrier && enable atomics_win32
3704
3705 check_lib math.h sin -lm && LIBM="-lm"
3706 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3707
3708 atan2f_args=2
3709