d09684c7b032ec533007cb64e04a9972a0870b3a
[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 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63 --help print this message
64 --list-decoders show all available decoders
65 --list-encoders show all available encoders
66 --list-hwaccels show all available hardware accelerators
67 --list-demuxers show all available demuxers
68 --list-muxers show all available muxers
69 --list-parsers show all available parsers
70 --list-protocols show all available protocols
71 --list-bsfs show all available bitstream filters
72 --list-indevs show all available input devices
73 --list-outdevs show all available output devices
74 --list-filters show all available filters
75
76 Standard options:
77 --logfile=FILE log tests and output to FILE [config.log]
78 --disable-logging do not log configure debug information
79 --prefix=PREFIX install in PREFIX [$prefix]
80 --bindir=DIR install binaries in DIR [PREFIX/bin]
81 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
82 --libdir=DIR install libs in DIR [PREFIX/lib]
83 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
84 --incdir=DIR install includes in DIR [PREFIX/include]
85 --mandir=DIR install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88 --enable-gpl allow use of GPL code, the resulting libs
89 and binaries will be under GPL [no]
90 --enable-version3 upgrade (L)GPL to version 3 [no]
91 --enable-nonfree allow use of nonfree code, the resulting libs
92 and binaries will be unredistributable [no]
93
94 Configuration options:
95 --disable-static do not build static libraries [no]
96 --enable-shared build shared libraries [no]
97 --enable-small optimize for size instead of speed
98 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99 --enable-gray enable full grayscale support (slower color)
100 --disable-swscale-alpha disable alpha channel support in swscale
101
102 Component options:
103 --disable-doc do not build documentation
104 --disable-avconv disable avconv build
105 --disable-avplay disable avplay build
106 --disable-avprobe disable avprobe build
107 --disable-avserver disable avserver build
108 --disable-avdevice disable libavdevice build
109 --disable-avcodec disable libavcodec build
110 --disable-avformat disable libavformat build
111 --disable-swscale disable libswscale build
112 --disable-avfilter disable video filter support [no]
113 --disable-avresample disable libavresample build [no]
114 --disable-pthreads disable pthreads [auto]
115 --disable-w32threads disable Win32 threads [auto]
116 --enable-x11grab enable X11 grabbing [no]
117 --disable-network disable network support [no]
118 --disable-dct disable DCT code
119 --disable-dwt disable DWT code
120 --disable-lsp disable LSP code
121 --disable-mdct disable MDCT code
122 --disable-rdft disable RDFT code
123 --disable-fft disable FFT code
124 --enable-dxva2 enable DXVA2 code
125 --enable-vaapi enable VAAPI code
126 --enable-vda enable VDA code
127 --enable-vdpau enable VDPAU code
128
129 Individual component options:
130 --disable-everything disable all components listed below
131 --disable-encoder=NAME disable encoder NAME
132 --enable-encoder=NAME enable encoder NAME
133 --disable-encoders disable all encoders
134 --disable-decoder=NAME disable decoder NAME
135 --enable-decoder=NAME enable decoder NAME
136 --disable-decoders disable all decoders
137 --disable-hwaccel=NAME disable hwaccel NAME
138 --enable-hwaccel=NAME enable hwaccel NAME
139 --disable-hwaccels disable all hwaccels
140 --disable-muxer=NAME disable muxer NAME
141 --enable-muxer=NAME enable muxer NAME
142 --disable-muxers disable all muxers
143 --disable-demuxer=NAME disable demuxer NAME
144 --enable-demuxer=NAME enable demuxer NAME
145 --disable-demuxers disable all demuxers
146 --enable-parser=NAME enable parser NAME
147 --disable-parser=NAME disable parser NAME
148 --disable-parsers disable all parsers
149 --enable-bsf=NAME enable bitstream filter NAME
150 --disable-bsf=NAME disable bitstream filter NAME
151 --disable-bsfs disable all bitstream filters
152 --enable-protocol=NAME enable protocol NAME
153 --disable-protocol=NAME disable protocol NAME
154 --disable-protocols disable all protocols
155 --enable-indev=NAME enable input device NAME
156 --disable-indev=NAME disable input device NAME
157 --disable-indevs disable input devices
158 --enable-outdev=NAME enable output device NAME
159 --disable-outdev=NAME disable output device NAME
160 --disable-outdevs disable output devices
161 --disable-devices disable all devices
162 --enable-filter=NAME enable filter NAME
163 --disable-filter=NAME disable filter NAME
164 --disable-filters disable all filters
165
166 External library support:
167 --enable-avisynth enable reading of AVISynth script files [no]
168 --enable-bzlib enable bzlib [autodetect]
169 --enable-frei0r enable frei0r video filtering
170 --enable-gnutls enable gnutls [no]
171 --enable-libcdio enable audio CD grabbing with libcdio
172 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
173 and libraw1394 [no]
174 --enable-libfaac enable AAC encoding via libfaac [no]
175 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
176 --enable-libfreetype enable libfreetype [no]
177 --enable-libgsm enable GSM de/encoding via libgsm [no]
178 --enable-libilbc enable iLBC de/encoding via libilbc [no]
179 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
180 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
181 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
182 --enable-libopencv enable video filtering via libopencv [no]
183 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
184 --enable-libopus enable Opus decoding via libopus [no]
185 --enable-libpulse enable Pulseaudio input via libpulse [no]
186 --enable-librtmp enable RTMP[E] support via librtmp [no]
187 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
188 --enable-libspeex enable Speex de/encoding via libspeex [no]
189 --enable-libtheora enable Theora encoding via libtheora [no]
190 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
191 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
192 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
193 --enable-libvpx enable VP8 de/encoding via libvpx [no]
194 --enable-libx264 enable H.264 encoding via x264 [no]
195 --enable-libxavs enable AVS encoding via xavs [no]
196 --enable-libxvid enable Xvid encoding via xvidcore,
197 native MPEG-4/Xvid encoder exists [no]
198 --enable-openssl enable openssl [no]
199 --enable-zlib enable zlib [autodetect]
200
201 Advanced options (experts only):
202 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
203 --enable-cross-compile assume a cross-compiler is used
204 --sysroot=PATH root of cross-build tree
205 --sysinclude=PATH location of cross-build system headers
206 --target-os=OS compiler targets OS [$target_os]
207 --target-exec=CMD command to run executables on target
208 --target-path=DIR path to view of build directory on target
209 --toolchain=NAME set tool defaults according to NAME
210 --nm=NM use nm tool
211 --ar=AR use archive tool AR [$ar_default]
212 --as=AS use assembler AS [$as_default]
213 --cc=CC use C compiler CC [$cc_default]
214 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
215 --ld=LD use linker LD
216 --host-cc=HOSTCC use host C compiler HOSTCC
217 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
218 --host-ld=HOSTLD use host linker HOSTLD
219 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
220 --host-libs=HLIBS use libs HLIBS when linking for host
221 --host-os=OS compiler host OS [$target_os]
222 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
223 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
224 --extra-libs=ELIBS add ELIBS [$ELIBS]
225 --extra-version=STRING version string suffix []
226 --optflags=OPTFLAGS override optimization-related compiler flags
227 --build-suffix=SUFFIX library name suffix []
228 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
229 --arch=ARCH select architecture [$arch]
230 --cpu=CPU select the minimum required CPU (affects
231 instruction selection, may crash on older CPUs)
232 --enable-pic build position-independent code
233 --enable-sram allow use of on-chip SRAM
234 --enable-thumb compile for Thumb instruction set
235 --disable-symver disable symbol versioning
236 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
237 --disable-safe-bitstream-reader
238 disable buffer boundary checking in bitreaders
239 (faster, but may crash)
240 --enable-memalign-hack emulate memalign, interferes with memory debuggers
241
242 Optimization options (experts only):
243 --disable-asm disable all assembler optimizations
244 --disable-altivec disable AltiVec optimizations
245 --disable-amd3dnow disable 3DNow! optimizations
246 --disable-amd3dnowext disable 3DNow! extended optimizations
247 --disable-mmx disable MMX optimizations
248 --disable-mmxext disable MMXEXT optimizations
249 --disable-sse disable SSE optimizations
250 --disable-sse2 disable SSE2 optimizations
251 --disable-sse3 disable SSE3 optimizations
252 --disable-ssse3 disable SSSE3 optimizations
253 --disable-sse4 disable SSE4 optimizations
254 --disable-sse42 disable SSE4.2 optimizations
255 --disable-avx disable AVX optimizations
256 --disable-fma4 disable FMA4 optimizations
257 --disable-armv5te disable armv5te optimizations
258 --disable-armv6 disable armv6 optimizations
259 --disable-armv6t2 disable armv6t2 optimizations
260 --disable-armvfp disable ARM VFP optimizations
261 --disable-mmi disable MMI optimizations
262 --disable-neon disable NEON optimizations
263 --disable-vis disable VIS optimizations
264 --disable-inline-asm disable use of inline assembler
265 --disable-yasm disable use of yasm assembler
266
267 Developer options (useful when working on Libav itself):
268 --disable-debug disable debugging symbols
269 --enable-debug=LEVEL set the debug level [$debuglevel]
270 --disable-optimizations disable compiler optimizations
271 --enable-extra-warnings enable more compiler warnings
272 --samples=PATH location of test samples for FATE, if not set use
273 \$LIBAV_SAMPLES at make invocation time.
274 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
275 should be used only for debugging purposes)
276 --enable-random randomly enable/disable components
277 --disable-random
278 --enable-random=LIST randomly enable/disable specific components or
279 --disable-random=LIST component groups. LIST is a comma-separated list
280 of NAME[:PROB] entries where NAME is a component
281 (group) and PROB the probability associated with
282 NAME (default 0.5).
283 --random-seed=VALUE seed value for --enable/disable-random
284
285 NOTE: Object files are built at the place where configure is launched.
286 EOF
287 exit 0
288 }
289
290 quotes='""'
291
292 log(){
293 echo "$@" >> $logfile
294 }
295
296 log_file(){
297 log BEGIN $1
298 pr -n -t $1 >> $logfile
299 log END $1
300 }
301
302 echolog(){
303 log "$@"
304 echo "$@"
305 }
306
307 warn(){
308 log "WARNING: $*"
309 WARNINGS="${WARNINGS}WARNING: $*\n"
310 }
311
312 die(){
313 echolog "$@"
314 cat <<EOF
315
316 If you think configure made a mistake, make sure you are using the latest
317 version from Git. If the latest version fails, report the problem to the
318 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
319 EOF
320 if disabled logging; then
321 cat <<EOF
322 Rerun configure with logging enabled (do not use --disable-logging), and
323 include the log this produces with your report.
324 EOF
325 else
326 cat <<EOF
327 Include the log file "$logfile" produced by configure as this will help
328 solving the problem.
329 EOF
330 fi
331 exit 1
332 }
333
334 # Avoid locale weirdness, besides we really just want to translate ASCII.
335 toupper(){
336 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
337 }
338
339 tolower(){
340 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
341 }
342
343 c_escape(){
344 echo "$*" | sed 's/["\\]/\\\0/g'
345 }
346
347 sh_quote(){
348 v=$(echo "$1" | sed "s/'/'\\\\''/g")
349 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
350 echo "$v"
351 }
352
353 cleanws(){
354 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
355 }
356
357 filter(){
358 pat=$1
359 shift
360 for v; do
361 eval "case $v in $pat) echo $v ;; esac"
362 done
363 }
364
365 filter_out(){
366 pat=$1
367 shift
368 for v; do
369 eval "case $v in $pat) ;; *) echo $v ;; esac"
370 done
371 }
372
373 map(){
374 m=$1
375 shift
376 for v; do eval $m; done
377 }
378
379 add_suffix(){
380 suffix=$1
381 shift
382 for v; do echo ${v}${suffix}; done
383 }
384
385 set_all(){
386 value=$1
387 shift
388 for var in $*; do
389 eval $var=$value
390 done
391 }
392
393 set_weak(){
394 value=$1
395 shift
396 for var; do
397 eval : \${$var:=$value}
398 done
399 }
400
401 set_safe(){
402 var=$1
403 shift
404 eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
405 }
406
407 get_safe(){
408 eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
409 }
410
411 pushvar(){
412 for var in $*; do
413 eval level=\${${var}_level:=0}
414 eval ${var}_${level}="\$$var"
415 eval ${var}_level=$(($level+1))
416 done
417 }
418
419 popvar(){
420 for var in $*; do
421 eval level=\${${var}_level:-0}
422 test $level = 0 && continue
423 eval level=$(($level-1))
424 eval $var="\${${var}_${level}}"
425 eval ${var}_level=$level
426 eval unset ${var}_${level}
427 done
428 }
429
430 enable(){
431 set_all yes $*
432 }
433
434 disable(){
435 set_all no $*
436 }
437
438 enable_weak(){
439 set_weak yes $*
440 }
441
442 disable_weak(){
443 set_weak no $*
444 }
445
446 enable_safe(){
447 for var; do
448 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
449 done
450 }
451
452 disable_safe(){
453 for var; do
454 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
455 done
456 }
457
458 do_enable_deep(){
459 for var; do
460 enabled $var && continue
461 eval sel="\$${var}_select"
462 eval sgs="\$${var}_suggest"
463 pushvar var sgs
464 enable_deep $sel
465 popvar sgs
466 enable_deep_weak $sgs
467 popvar var
468 done
469 }
470
471 enable_deep(){
472 do_enable_deep $*
473 enable $*
474 }
475
476 enable_deep_weak(){
477 do_enable_deep $*
478 enable_weak $*
479 }
480
481 enabled(){
482 test "${1#!}" = "$1" && op== || op=!=
483 eval test "x\$${1#!}" $op "xyes"
484 }
485
486 disabled(){
487 test "${1#!}" = "$1" && op== || op=!=
488 eval test "x\$${1#!}" $op "xno"
489 }
490
491 enabled_all(){
492 for opt; do
493 enabled $opt || return 1
494 done
495 }
496
497 disabled_all(){
498 for opt; do
499 disabled $opt || return 1
500 done
501 }
502
503 enabled_any(){
504 for opt; do
505 enabled $opt && return 0
506 done
507 }
508
509 disabled_any(){
510 for opt; do
511 disabled $opt && return 0
512 done
513 return 1
514 }
515
516 set_default(){
517 for opt; do
518 eval : \${$opt:=\$${opt}_default}
519 done
520 }
521
522 is_in(){
523 value=$1
524 shift
525 for var in $*; do
526 [ $var = $value ] && return 0
527 done
528 return 1
529 }
530
531 check_deps(){
532 for cfg; do
533 cfg="${cfg#!}"
534 enabled ${cfg}_checking && die "Circular dependency for $cfg."
535 disabled ${cfg}_checking && continue
536 enable ${cfg}_checking
537
538 eval dep_all="\$${cfg}_deps"
539 eval dep_any="\$${cfg}_deps_any"
540 eval dep_sel="\$${cfg}_select"
541 eval dep_sgs="\$${cfg}_suggest"
542 eval dep_ifa="\$${cfg}_if"
543 eval dep_ifn="\$${cfg}_if_any"
544
545 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
546 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
547 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
548
549 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
550 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
551 enabled_all $dep_all || disable $cfg
552 enabled_any $dep_any || disable $cfg
553 disabled_any $dep_sel && disable $cfg
554
555 if enabled $cfg; then
556 eval dep_extralibs="\$${cfg}_extralibs"
557 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
558 enable_deep $dep_sel
559 enable_deep_weak $dep_sgs
560 fi
561
562 disable ${cfg}_checking
563 done
564 }
565
566 print_config_h(){
567 enabled $1 && v=1 || v=0
568 echo "#define $2 $v"
569 }
570
571 print_config_mak(){
572 enabled $1 && v= || v=!
573 echo "$v$2=yes"
574 }
575
576 print_config_asm(){
577 enabled $1 && v=1 || v=0
578 echo "%define $2 $v"
579 }
580
581 print_config(){
582 pfx=$1
583 files=$2
584 shift 2
585 for cfg; do
586 ucname="$(toupper $cfg)"
587 for f in $files; do
588 "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
589 done
590 done
591 }
592
593 print_enabled(){
594 test "$1" = -n && end=" " && shift || end="\n"
595 suf=$1
596 shift
597 for v; do
598 enabled $v && printf "%s$end" ${v%$suf};
599 done
600 }
601
602 append(){
603 var=$1
604 shift
605 eval "$var=\"\$$var $*\""
606 }
607
608 prepend(){
609 var=$1
610 shift
611 eval "$var=\"$* \$$var\""
612 }
613
614 add_cppflags(){
615 append CPPFLAGS "$@"
616 }
617
618 add_cflags(){
619 append CFLAGS $($cflags_filter "$@")
620 }
621
622 add_asflags(){
623 append ASFLAGS $($asflags_filter "$@")
624 }
625
626 add_ldflags(){
627 append LDFLAGS $($ldflags_filter "$@")
628 }
629
630 add_extralibs(){
631 prepend extralibs $($ldflags_filter "$@")
632 }
633
634 add_host_cflags(){
635 append host_cflags $($host_cflags_filter "$@")
636 }
637
638 add_host_ldflags(){
639 append host_ldflags $($host_ldflags_filter "$@")
640 }
641
642 check_cmd(){
643 log "$@"
644 "$@" >> $logfile 2>&1
645 }
646
647 cc_o(){
648 eval printf '%s\\n' $CC_O
649 }
650
651 cc_e(){
652 eval printf '%s\\n' $CC_E
653 }
654
655 check_cc(){
656 log check_cc "$@"
657 cat > $TMPC
658 log_file $TMPC
659 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
660 }
661
662 check_cpp(){
663 log check_cpp "$@"
664 cat > $TMPC
665 log_file $TMPC
666 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
667 }
668
669 as_o(){
670 eval printf '%s\\n' $AS_O
671 }
672
673 check_as(){
674 log check_as "$@"
675 cat > $TMPC
676 log_file $TMPC
677 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
678 }
679
680 check_inline_asm(){
681 log check_inline_asm "$@"
682 name="$1"
683 code="$2"
684 shift 2
685 disable $name
686 check_as "$@" <<EOF && enable $name
687 void foo(void){ __asm__ volatile($code); }
688 EOF
689 }
690
691 check_yasm(){
692 log check_yasm "$@"
693 echo "$1" > $TMPS
694 log_file $TMPS
695 shift 1
696 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
697 }
698
699 ld_o(){
700 eval printf '%s\\n' $LD_O
701 }
702
703 check_ld(){
704 log check_ld "$@"
705 flags=''
706 libs=''
707 for f; do
708 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
709 done
710 check_cc $($cflags_filter $flags) || return
711 flags=$($ldflags_filter $flags)
712 libs=$($ldflags_filter $libs)
713 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
714 }
715
716 check_code(){
717 log check_code "$@"
718 check=$1
719 headers=$2
720 code=$3
721 shift 3
722 {
723 for hdr in $headers; do
724 echo "#include <$hdr>"
725 done
726 echo "int main(void) { $code; return 0; }"
727 } | check_$check "$@"
728 }
729
730 check_cppflags(){
731 log check_cppflags "$@"
732 check_cc "$@" <<EOF && append CPPFLAGS "$@"
733 int x;
734 EOF
735 }
736
737 check_cflags(){
738 log check_cflags "$@"
739 set -- $($cflags_filter "$@")
740 check_cc "$@" <<EOF && append CFLAGS "$@"
741 int x;
742 EOF
743 }
744
745 test_ldflags(){
746 log test_ldflags "$@"
747 check_ld "$@" <<EOF
748 int main(void){ return 0; }
749 EOF
750 }
751
752 check_ldflags(){
753 log check_ldflags "$@"
754 test_ldflags "$@" && add_ldflags "$@"
755 }
756
757 check_header(){
758 log check_header "$@"
759 header=$1
760 shift
761 disable_safe $header
762 check_cpp "$@" <<EOF && enable_safe $header
763 #include <$header>
764 int x;
765 EOF
766 }
767
768 check_func(){
769 log check_func "$@"
770 func=$1
771 shift
772 disable $func
773 check_ld "$@" <<EOF && enable $func
774 extern int $func();
775 int main(void){ $func(); }
776 EOF
777 }
778
779 check_mathfunc(){
780 log check_mathfunc "$@"
781 func=$1
782 shift
783 disable $func
784 check_ld "$@" <<EOF && enable $func
785 #include <math.h>
786 float foo(float f) { return $func(f); }
787 int main(void){ return 0; }
788 EOF
789 }
790
791 check_func_headers(){
792 log check_func_headers "$@"
793 headers=$1
794 funcs=$2
795 shift 2
796 {
797 for hdr in $headers; do
798 echo "#include <$hdr>"
799 done
800 for func in $funcs; do
801 echo "long check_$func(void) { return (long) $func; }"
802 done
803 echo "int main(void) { return 0; }"
804 } | check_ld "$@" && enable $funcs && enable_safe $headers
805 }
806
807 check_cpp_condition(){
808 log check_cpp_condition "$@"
809 header=$1
810 condition=$2
811 shift 2
812 check_cpp "$@" <<EOF
813 #include <$header>
814 #if !($condition)
815 #error "unsatisfied condition: $condition"
816 #endif
817 EOF
818 }
819
820 check_lib(){
821 log check_lib "$@"
822 header="$1"
823 func="$2"
824 shift 2
825 check_header $header && check_func $func "$@" && add_extralibs "$@"
826 }
827
828 check_lib2(){
829 log check_lib2 "$@"
830 headers="$1"
831 funcs="$2"
832 shift 2
833 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
834 }
835
836 check_pkg_config(){
837 log check_pkg_config "$@"
838 pkg="$1"
839 headers="$2"
840 funcs="$3"
841 shift 3
842 $pkg_config --exists $pkg || return
843 pkg_cflags=$($pkg_config --cflags $pkg)
844 pkg_libs=$($pkg_config --libs $pkg)
845 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
846 set_safe ${pkg}_cflags $pkg_cflags &&
847 set_safe ${pkg}_libs $pkg_libs
848 }
849
850 check_exec(){
851 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
852 }
853
854 check_exec_crash(){
855 code=$(cat)
856
857 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
858 # are safe but may not be available everywhere. Thus we use
859 # raise(SIGTERM) instead. The check is run in a subshell so we
860 # can redirect the "Terminated" message from the shell. SIGBUS
861 # is not defined by standard C so it is used conditionally.
862
863 (check_exec "$@") >> $logfile 2>&1 <<EOF
864 #include <signal.h>
865 static void sighandler(int sig){
866 raise(SIGTERM);
867 }
868 int foo(void){
869 $code
870 }
871 int main(void){
872 signal(SIGILL, sighandler);
873 signal(SIGFPE, sighandler);
874 signal(SIGSEGV, sighandler);
875 #ifdef SIGBUS
876 signal(SIGBUS, sighandler);
877 #endif
878 foo();
879 }
880 EOF
881 }
882
883 check_type(){
884 log check_type "$@"
885 headers=$1
886 type=$2
887 shift 2
888 disable_safe "$type"
889 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
890 }
891
892 check_struct(){
893 log check_type "$@"
894 headers=$1
895 struct=$2
896 member=$3
897 shift 3
898 disable_safe "${struct}_${member}"
899 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
900 enable_safe "${struct}_${member}"
901 }
902
903 require(){
904 name="$1"
905 header="$2"
906 func="$3"
907 shift 3
908 check_lib $header $func "$@" || die "ERROR: $name not found"
909 }
910
911 require2(){
912 name="$1"
913 headers="$2"
914 func="$3"
915 shift 3
916 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
917 }
918
919 require_pkg_config(){
920 pkg="$1"
921 check_pkg_config "$@" || die "ERROR: $pkg not found"
922 add_cflags $(get_safe ${pkg}_cflags)
923 add_extralibs $(get_safe ${pkg}_libs)
924 }
925
926 hostcc_o(){
927 eval printf '%s\\n' $HOSTCC_O
928 }
929
930 check_host_cc(){
931 log check_host_cc "$@"
932 cat > $TMPC
933 log_file $TMPC
934 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
935 }
936
937 check_host_cflags(){
938 log check_host_cflags "$@"
939 set -- $($host_cflags_filter "$@")
940 check_host_cc "$@" <<EOF && append host_cflags "$@"
941 int x;
942 EOF
943 }
944
945 apply(){
946 file=$1
947 shift
948 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
949 }
950
951 cp_if_changed(){
952 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
953 mkdir -p "$(dirname $2)"
954 cp -f "$1" "$2"
955 }
956
957 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
958 # system-dependent things.
959
960 COMPONENT_LIST="
961 bsfs
962 decoders
963 demuxers
964 encoders
965 filters
966 hwaccels
967 indevs
968 muxers
969 outdevs
970 parsers
971 protocols
972 "
973
974 PROGRAM_LIST="
975 avconv
976 avplay
977 avprobe
978 avserver
979 "
980
981 CONFIG_LIST="
982 $COMPONENT_LIST
983 $PROGRAM_LIST
984 avcodec
985 avdevice
986 avfilter
987 avformat
988 avresample
989 avisynth
990 bzlib
991 dct
992 doc
993 dwt
994 dxva2
995 fft
996 frei0r
997 gnutls
998 gpl
999 gray
1000 hardcoded_tables
1001 libcdio
1002 libdc1394
1003 libfaac
1004 libfdk_aac
1005 libfreetype
1006 libgsm
1007 libilbc
1008 libmp3lame
1009 libopencore_amrnb
1010 libopencore_amrwb
1011 libopencv
1012 libopenjpeg
1013 libopus
1014 libpulse
1015 librtmp
1016 libschroedinger
1017 libspeex
1018 libtheora
1019 libvo_aacenc
1020 libvo_amrwbenc
1021 libvorbis
1022 libvpx
1023 libx264
1024 libxavs
1025 libxvid
1026 lsp
1027 mdct
1028 memalign_hack
1029 network
1030 nonfree
1031 openssl
1032 pic
1033 rdft
1034 runtime_cpudetect
1035 safe_bitstream_reader
1036 shared
1037 small
1038 sram
1039 static
1040 swscale
1041 swscale_alpha
1042 thumb
1043 vaapi
1044 vda
1045 vdpau
1046 version3
1047 xmm_clobber_test
1048 x11grab
1049 zlib
1050 "
1051
1052 THREADS_LIST='
1053 pthreads
1054 w32threads
1055 '
1056
1057 ARCH_LIST='
1058 alpha
1059 arm
1060 avr32
1061 avr32_ap
1062 avr32_uc
1063 bfin
1064 ia64
1065 m68k
1066 mips
1067 mips64
1068 parisc
1069 ppc
1070 ppc64
1071 s390
1072 sh4
1073 sparc
1074 sparc64
1075 tomi
1076 x86
1077 x86_32
1078 x86_64
1079 '
1080
1081 ARCH_EXT_LIST_X86='
1082 amd3dnow
1083 amd3dnowext
1084 avx
1085 fma4
1086 mmx
1087 mmxext
1088 sse
1089 sse2
1090 sse3
1091 sse4
1092 sse42
1093 ssse3
1094 '
1095
1096 ARCH_EXT_LIST="
1097 $ARCH_EXT_LIST_X86
1098 altivec
1099 armv5te
1100 armv6
1101 armv6t2
1102 armvfp
1103 mmi
1104 neon
1105 ppc4xx
1106 vfpv3
1107 vis
1108 "
1109
1110 HAVE_LIST_CMDLINE='
1111 inline_asm
1112 symver
1113 yasm
1114 '
1115
1116 HAVE_LIST_PUB='
1117 bigendian
1118 fast_unaligned
1119 '
1120
1121 HAVE_LIST="
1122 $ARCH_EXT_LIST
1123 $(add_suffix _external $ARCH_EXT_LIST)
1124 $(add_suffix _inline $ARCH_EXT_LIST)
1125 $HAVE_LIST_CMDLINE
1126 $HAVE_LIST_PUB
1127 $THREADS_LIST
1128 aligned_malloc
1129 aligned_stack
1130 alsa_asoundlib_h
1131 altivec_h
1132 arpa_inet_h
1133 asm_mod_q
1134 asm_mod_y
1135 attribute_may_alias
1136 attribute_packed
1137 cbrtf
1138 closesocket
1139 cmov
1140 cpuid
1141 cpunop
1142 dcbzl
1143 dev_bktr_ioctl_bt848_h
1144 dev_bktr_ioctl_meteor_h
1145 dev_ic_bt8xx_h
1146 dev_video_bktr_ioctl_bt848_h
1147 dev_video_meteor_ioctl_meteor_h
1148 direct_h
1149 dlfcn_h
1150 dlopen
1151 dos_paths
1152 dxva_h
1153 ebp_available
1154 ebx_available
1155 exp2
1156 exp2f
1157 fast_64bit
1158 fast_clz
1159 fast_cmov
1160 fcntl
1161 fork
1162 getaddrinfo
1163 gethrtime
1164 getopt
1165 GetProcessAffinityMask
1166 GetProcessMemoryInfo
1167 GetProcessTimes
1168 GetSystemTimeAsFileTime
1169 getrusage
1170 gettimeofday
1171 gnu_as
1172 ibm_asm
1173 inet_aton
1174 io_h
1175 isatty
1176 isinf
1177 isnan
1178 jack_port_get_latency_range
1179 ldbrx
1180 libdc1394_1
1181 libdc1394_2
1182 llrint
1183 llrintf
1184 local_aligned_16
1185 local_aligned_8
1186 localtime_r
1187 log2
1188 log2f
1189 loongson
1190 lrint
1191 lrintf
1192 machine_ioctl_bt848_h
1193 machine_ioctl_meteor_h
1194 malloc_h
1195 MapViewOfFile
1196 memalign
1197 mkstemp
1198 mm_empty
1199 mmap
1200 msvcrt
1201 nanosleep
1202 poll_h
1203 posix_memalign
1204 rdtsc
1205 rint
1206 round
1207 roundf
1208 rweflags
1209 sched_getaffinity
1210 sdl
1211 sdl_video_size
1212 setmode
1213 setrlimit
1214 Sleep
1215 sndio_h
1216 socklen_t
1217 soundcard_h
1218 strerror_r
1219 strptime
1220 strtok_r
1221 struct_addrinfo
1222 struct_group_source_req
1223 struct_ip_mreq_source
1224 struct_ipv6_mreq
1225 struct_pollfd
1226 struct_rusage_ru_maxrss
1227 struct_sockaddr_in6
1228 struct_sockaddr_sa_len
1229 struct_sockaddr_storage
1230 struct_v4l2_frmivalenum_discrete
1231 symver_asm_label
1232 symver_gnu_asm
1233 sysconf
1234 sysctl
1235 sys_mman_h
1236 sys_param_h
1237 sys_resource_h
1238 sys_select_h
1239 sys_soundcard_h
1240 sys_time_h
1241 sys_videoio_h
1242 threads
1243 trunc
1244 truncf
1245 unistd_h
1246 usleep
1247 vfp_args
1248 VirtualAlloc
1249 windows_h
1250 winsock2_h
1251 xform_asm
1252 xgetbv
1253 xmm_clobbers
1254 "
1255
1256 # options emitted with CONFIG_ prefix but not available on command line
1257 CONFIG_EXTRA="
1258 aandcttables
1259 ac3dsp
1260 avutil
1261 error_resilience
1262 gcrypt
1263 golomb
1264 gplv3
1265 h264chroma
1266 h264dsp
1267 h264pred
1268 h264qpel
1269 huffman
1270 lgplv3
1271 lpc
1272 mpegaudio
1273 mpegaudiodsp
1274 mpegvideo
1275 mpegvideoenc
1276 nettle
1277 rangecoder
1278 rtpdec
1279 sinewin
1280 vp3dsp
1281 "
1282
1283 CMDLINE_SELECT="
1284 $ARCH_EXT_LIST
1285 $CONFIG_LIST
1286 $HAVE_LIST_CMDLINE
1287 $THREADS_LIST
1288 asm
1289 cross_compile
1290 debug
1291 extra_warnings
1292 logging
1293 optimizations
1294 "
1295
1296 PATHS_LIST='
1297 bindir
1298 datadir
1299 incdir
1300 libdir
1301 mandir
1302 prefix
1303 shlibdir
1304 '
1305
1306 CMDLINE_SET="
1307 $PATHS_LIST
1308 ar
1309 arch
1310 as
1311 build_suffix
1312 cc
1313 cpu
1314 cross_prefix
1315 dep_cc
1316 extra_version
1317 host_cc
1318 host_cflags
1319 host_ld
1320 host_ldflags
1321 host_libs
1322 host_os
1323 ld
1324 logfile
1325 malloc_prefix
1326 nm
1327 optflags
1328 pkg_config
1329 random_seed
1330 samples
1331 sysinclude
1332 sysroot
1333 target_exec
1334 target_os
1335 target_path
1336 toolchain
1337 "
1338
1339 CMDLINE_APPEND="
1340 extra_cflags
1341 "
1342
1343 # code dependency declarations
1344
1345 # architecture extensions
1346
1347 armv5te_deps="arm"
1348 armv6_deps="arm"
1349 armv6t2_deps="arm"
1350 armvfp_deps="arm"
1351 neon_deps="arm"
1352 vfpv3_deps="armvfp"
1353
1354 mmi_deps="mips"
1355
1356 altivec_deps="ppc"
1357 ppc4xx_deps="ppc"
1358
1359 vis_deps="sparc"
1360
1361 x86_64_suggest="cmov fast_cmov"
1362
1363 amd3dnow_deps="mmx"
1364 amd3dnowext_deps="amd3dnow"
1365 mmx_deps="x86"
1366 mmxext_deps="mmx"
1367 sse_deps="mmxext"
1368 sse2_deps="sse"
1369 sse3_deps="sse2"
1370 ssse3_deps="sse3"
1371 sse4_deps="ssse3"
1372 sse42_deps="sse4"
1373 avx_deps="sse42"
1374 fma4_deps="avx"
1375
1376 mmx_external_deps="yasm"
1377 mmx_inline_deps="inline_asm"
1378 mmx_suggest="mmx_external mmx_inline"
1379
1380 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1381 eval dep=\$${ext}_deps
1382 eval ${ext}_external_deps='"${dep}_external"'
1383 eval ${ext}_inline_deps='"${dep}_inline"'
1384 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1385 done
1386
1387 aligned_stack_if_any="ppc x86"
1388 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1389 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1390 fast_unaligned_if_any="armv6 ppc x86"
1391
1392 inline_asm_deps="!tms470"
1393 need_memalign="altivec neon sse"
1394
1395 symver_if_any="symver_asm_label symver_gnu_asm"
1396
1397 log2_deps="!msvcrt"
1398
1399 # subsystems
1400 dct_select="rdft"
1401 mdct_select="fft"
1402 rdft_select="fft"
1403 mpegaudio_select="mpegaudiodsp"
1404 mpegaudiodsp_select="dct"
1405 mpegvideoenc_select="mpegvideo"
1406
1407 # decoders / encoders / hardware accelerators
1408 aac_decoder_select="mdct sinewin"
1409 aac_encoder_select="mdct sinewin"
1410 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1411 ac3_decoder_select="mdct ac3dsp ac3_parser"
1412 ac3_encoder_select="mdct ac3dsp"
1413 ac3_fixed_encoder_select="mdct ac3dsp"
1414 alac_encoder_select="lpc"
1415 amrnb_decoder_select="lsp"
1416 amrwb_decoder_select="lsp"
1417 atrac1_decoder_select="mdct sinewin"
1418 atrac3_decoder_select="mdct"
1419 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1420 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1421 cavs_decoder_select="golomb mpegvideo"
1422 cook_decoder_select="mdct sinewin"
1423 cscd_decoder_suggest="zlib"
1424 dca_decoder_select="mdct"
1425 dnxhd_encoder_select="aandcttables mpegvideoenc"
1426 dxa_decoder_select="zlib"
1427 eac3_decoder_select="ac3_decoder"
1428 eac3_encoder_select="ac3_encoder"
1429 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1430 eatgq_decoder_select="aandcttables"
1431 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1432 ffv1_decoder_select="golomb rangecoder"
1433 ffv1_encoder_select="rangecoder"
1434 ffvhuff_encoder_select="huffman"
1435 flac_decoder_select="golomb"
1436 flac_encoder_select="golomb lpc"
1437 flashsv_decoder_select="zlib"
1438 flashsv_encoder_select="zlib"
1439 flashsv2_decoder_select="zlib"
1440 flv_decoder_select="h263_decoder"
1441 flv_encoder_select="h263_encoder"
1442 fraps_decoder_select="huffman"
1443 h261_decoder_select="error_resilience mpegvideo"
1444 h261_encoder_select="aandcttables mpegvideoenc"
1445 h263_decoder_select="error_resilience h263_parser mpegvideo"
1446 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1447 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1448 h263i_decoder_select="h263_decoder"
1449 h263p_encoder_select="h263_encoder"
1450 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1451 h264_dxva2_hwaccel_deps="dxva2api_h"
1452 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1453 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1454 h264_vda_hwaccel_select="vda h264_decoder"
1455 h264_vdpau_decoder_select="vdpau h264_decoder"
1456 huffyuv_encoder_select="huffman"
1457 iac_decoder_select="fft mdct sinewin"
1458 imc_decoder_select="fft mdct sinewin"
1459 jpegls_decoder_select="golomb"
1460 jpegls_encoder_select="golomb"
1461 ljpeg_encoder_select="aandcttables mpegvideoenc"
1462 loco_decoder_select="golomb"
1463 mdec_decoder_select="error_resilience mpegvideo"
1464 mjpeg_encoder_select="aandcttables mpegvideoenc"
1465 mlp_decoder_select="mlp_parser"
1466 mp1_decoder_select="mpegaudio"
1467 mp1float_decoder_select="mpegaudio"
1468 mp2_decoder_select="mpegaudio"
1469 mp2float_decoder_select="mpegaudio"
1470 mp3_decoder_select="mpegaudio"
1471 mp3adu_decoder_select="mpegaudio"
1472 mp3adufloat_decoder_select="mpegaudio"
1473 mp3float_decoder_select="mpegaudio"
1474 mp3on4_decoder_select="mpegaudio"
1475 mp3on4float_decoder_select="mpegaudio"
1476 mpc7_decoder_select="mpegaudiodsp"
1477 mpc8_decoder_select="mpegaudiodsp"
1478 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1479 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1480 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1481 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1482 mpeg1video_decoder_select="error_resilience mpegvideo"
1483 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1484 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1485 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1486 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1487 mpeg2video_decoder_select="error_resilience mpegvideo"
1488 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1489 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1490 mpeg4_encoder_select="h263_encoder"
1491 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1492 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1493 msmpeg4v1_decoder_select="h263_decoder"
1494 msmpeg4v1_encoder_select="h263_encoder"
1495 msmpeg4v2_decoder_select="h263_decoder"
1496 msmpeg4v2_encoder_select="h263_encoder"
1497 msmpeg4v3_decoder_select="h263_decoder"
1498 msmpeg4v3_encoder_select="h263_encoder"
1499 mss2_decoder_select="vc1_decoder"
1500 nellymoser_decoder_select="mdct sinewin"
1501 nellymoser_encoder_select="mdct sinewin"
1502 png_decoder_select="zlib"
1503 png_encoder_select="zlib"
1504 qcelp_decoder_select="lsp"
1505 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1506 ra_144_encoder_select="lpc"
1507 ralf_decoder_select="golomb"
1508 rv10_decoder_select="h263_decoder"
1509 rv10_encoder_select="h263_encoder"
1510 rv20_decoder_select="h263_decoder"
1511 rv20_encoder_select="h263_encoder"
1512 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1513 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1514 shorten_decoder_select="golomb"
1515 sipr_decoder_select="lsp"
1516 snow_decoder_select="dwt rangecoder"
1517 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1518 svq1_decoder_select="error_resilience mpegvideo"
1519 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1520 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1521 svq3_decoder_suggest="zlib"
1522 theora_decoder_select="vp3_decoder"
1523 tiff_decoder_suggest="zlib"
1524 tiff_encoder_suggest="zlib"
1525 truehd_decoder_select="mlp_decoder"
1526 tscc_decoder_select="zlib"
1527 twinvq_decoder_select="mdct lsp sinewin"
1528 utvideo_encoder_select="huffman"
1529 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1530 vc1_dxva2_hwaccel_deps="dxva2api_h"
1531 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1532 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1533 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1534 vc1image_decoder_select="vc1_decoder"
1535 vorbis_decoder_select="mdct"
1536 vorbis_encoder_select="mdct"
1537 vp3_decoder_select="vp3dsp"
1538 vp5_decoder_select="vp3dsp"
1539 vp6_decoder_select="huffman vp3dsp"
1540 vp6a_decoder_select="vp6_decoder"
1541 vp6f_decoder_select="vp6_decoder"
1542 vp8_decoder_select="h264pred h264qpel"
1543 wmapro_decoder_select="mdct sinewin"
1544 wmav1_decoder_select="mdct sinewin"
1545 wmav1_encoder_select="mdct sinewin"
1546 wmav2_decoder_select="mdct sinewin"
1547 wmav2_encoder_select="mdct sinewin"
1548 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1549 wmv1_decoder_select="h263_decoder"
1550 wmv1_encoder_select="h263_encoder"
1551 wmv2_decoder_select="h263_decoder"
1552 wmv2_encoder_select="h263_encoder"
1553 wmv3_decoder_select="vc1_decoder"
1554 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1555 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1556 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1557 wmv3image_decoder_select="wmv3_decoder"
1558 zerocodec_decoder_select="zlib"
1559 zlib_decoder_select="zlib"
1560 zlib_encoder_select="zlib"
1561 zmbv_decoder_select="zlib"
1562 zmbv_encoder_select="zlib"
1563
1564 vaapi_deps="va_va_h"
1565 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1566 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1567
1568 # parsers
1569 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1570 mpeg4video_parser_select="error_resilience mpegvideo"
1571 mpegvideo_parser_select="error_resilience mpegvideo"
1572 vc1_parser_select="error_resilience mpegvideo"
1573
1574 # external libraries
1575 libfaac_encoder_deps="libfaac"
1576 libfdk_aac_encoder_deps="libfdk_aac"
1577 libgsm_decoder_deps="libgsm"
1578 libgsm_encoder_deps="libgsm"
1579 libgsm_ms_decoder_deps="libgsm"
1580 libgsm_ms_encoder_deps="libgsm"
1581 libilbc_decoder_deps="libilbc"
1582 libilbc_encoder_deps="libilbc"
1583 libmp3lame_encoder_deps="libmp3lame"
1584 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1585 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1586 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1587 libopenjpeg_decoder_deps="libopenjpeg"
1588 libopenjpeg_encoder_deps="libopenjpeg"
1589 libopus_decoder_deps="libopus"
1590 libopus_encoder_deps="libopus"
1591 libschroedinger_decoder_deps="libschroedinger"
1592 libschroedinger_encoder_deps="libschroedinger"
1593 libspeex_decoder_deps="libspeex"
1594 libspeex_encoder_deps="libspeex"
1595 libtheora_encoder_deps="libtheora"
1596 libvo_aacenc_encoder_deps="libvo_aacenc"
1597 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1598 libvorbis_encoder_deps="libvorbis"
1599 libvpx_decoder_deps="libvpx"
1600 libvpx_encoder_deps="libvpx"
1601 libx264_encoder_deps="libx264"
1602 libxavs_encoder_deps="libxavs"
1603 libxvid_encoder_deps="libxvid"
1604
1605 # demuxers / muxers
1606 ac3_demuxer_select="ac3_parser"
1607 asf_stream_muxer_select="asf_muxer"
1608 avisynth_demuxer_deps="avisynth"
1609 dirac_demuxer_select="dirac_parser"
1610 eac3_demuxer_select="ac3_parser"
1611 flac_demuxer_select="flac_parser"
1612 ipod_muxer_select="mov_muxer"
1613 matroska_audio_muxer_select="matroska_muxer"
1614 matroska_demuxer_suggest="zlib bzlib"
1615 mov_demuxer_suggest="zlib"
1616 mp3_demuxer_select="mpegaudio_parser"
1617 mp4_muxer_select="mov_muxer"
1618 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1619 mpegtsraw_demuxer_select="mpegts_demuxer"
1620 mxf_d10_muxer_select="mxf_muxer"
1621 ogg_demuxer_select="golomb"
1622 psp_muxer_select="mov_muxer"
1623 rtp_demuxer_select="sdp_demuxer"
1624 rtp_muxer_select="mpegvideo"
1625 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1626 rtsp_demuxer_select="http_protocol rtpdec"
1627 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1628 sap_demuxer_select="sdp_demuxer"
1629 sap_muxer_select="rtp_muxer rtp_protocol"
1630 sdp_demuxer_select="rtpdec"
1631 smoothstreaming_muxer_select="ismv_muxer"
1632 spdif_muxer_select="aac_parser"
1633 tg2_muxer_select="mov_muxer"
1634 tgp_muxer_select="mov_muxer"
1635 w64_demuxer_deps="wav_demuxer"
1636
1637 # indevs / outdevs
1638 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1639 alsa_outdev_deps="alsa_asoundlib_h"
1640 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1641 dv1394_indev_deps="dv1394 dv_demuxer"
1642 fbdev_indev_deps="linux_fb_h"
1643 jack_indev_deps="jack_jack_h"
1644 libcdio_indev_deps="libcdio"
1645 libdc1394_indev_deps="libdc1394"
1646 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1647 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1648 pulse_indev_deps="libpulse"
1649 sndio_indev_deps="sndio_h"
1650 sndio_outdev_deps="sndio_h"
1651 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1652 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1653 vfwcap_indev_extralibs="-lavicap32"
1654 x11grab_indev_deps="x11grab XShmCreateImage"
1655
1656 # protocols
1657 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1658 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1659 ffrtmpcrypt_protocol_select="tcp_protocol"
1660 ffrtmphttp_protocol_deps="!librtmp_protocol"
1661 ffrtmphttp_protocol_select="http_protocol"
1662 gopher_protocol_deps="network"
1663 httpproxy_protocol_deps="network"
1664 httpproxy_protocol_select="tcp_protocol"
1665 http_protocol_deps="network"
1666 http_protocol_select="tcp_protocol"
1667 https_protocol_select="tls_protocol"
1668 librtmp_protocol_deps="librtmp"
1669 librtmpe_protocol_deps="librtmp"
1670 librtmps_protocol_deps="librtmp"
1671 librtmpt_protocol_deps="librtmp"
1672 librtmpte_protocol_deps="librtmp"
1673 mmsh_protocol_select="http_protocol"
1674 mmst_protocol_deps="network"
1675 rtmp_protocol_deps="!librtmp_protocol"
1676 rtmp_protocol_select="tcp_protocol"
1677 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1678 rtmps_protocol_deps="!librtmp_protocol"
1679 rtmps_protocol_select="tls_protocol"
1680 rtmpt_protocol_select="ffrtmphttp_protocol"
1681 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1682 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1683 rtp_protocol_select="udp_protocol"
1684 sctp_protocol_deps="network struct_sctp_event_subscribe"
1685 tcp_protocol_deps="network"
1686 tls_protocol_deps_any="openssl gnutls"
1687 tls_protocol_select="tcp_protocol"
1688 udp_protocol_deps="network"
1689
1690 # filters
1691 blackframe_filter_deps="gpl"
1692 boxblur_filter_deps="gpl"
1693 cropdetect_filter_deps="gpl"
1694 delogo_filter_deps="gpl"
1695 drawtext_filter_deps="libfreetype"
1696 frei0r_filter_deps="frei0r dlopen strtok_r"
1697 frei0r_filter_extralibs='$ldl'
1698 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1699 frei0r_src_filter_extralibs='$ldl'
1700 hqdn3d_filter_deps="gpl"
1701 resample_filter_deps="avresample"
1702 ocv_filter_deps="libopencv"
1703 scale_filter_deps="swscale"
1704 yadif_filter_deps="gpl"
1705
1706 # libraries
1707 avdevice_deps="avcodec avformat"
1708 avformat_deps="avcodec"
1709
1710 # programs
1711 avconv_deps="avcodec avfilter avformat avresample swscale
1712 aformat_filter asyncts_filter
1713 format_filter fps_filter scale_filter setpts_filter"
1714 avplay_deps="avcodec avformat swscale sdl"
1715 avplay_select="rdft"
1716 avprobe_deps="avcodec avformat"
1717 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1718 avserver_extralibs='$ldl'
1719
1720 doc_deps="texi2html"
1721
1722 # tests
1723
1724 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1725 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1726
1727 test_deps(){
1728 suf1=$1
1729 suf2=$2
1730 shift 2
1731 for v; do
1732 dep=${v%=*}
1733 tests=${v#*=}
1734 for name in ${tests}; do
1735 append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1736 done
1737 done
1738 }
1739
1740 test_deps _muxer _demuxer \
1741 aiff \
1742 pcm_alaw=alaw \
1743 asf \
1744 au \
1745 avi \
1746 dv=dv_fmt \
1747 ffm \
1748 flv=flv_fmt \
1749 gxf \
1750 matroska=mkv \
1751 mmf \
1752 mov \
1753 pcm_mulaw=mulaw \
1754 mxf="mxf mxf_d10" \
1755 nut \
1756 ogg \
1757 rawvideo=pixfmt \
1758 rm \
1759 swf \
1760 mpegts=ts \
1761 voc \
1762 wav \
1763 yuv4mpegpipe=yuv4mpeg \
1764
1765 # default parameters
1766
1767 logfile="config.log"
1768
1769 # installation paths
1770 prefix_default="/usr/local"
1771 bindir_default='${prefix}/bin'
1772 datadir_default='${prefix}/share/avconv'
1773 incdir_default='${prefix}/include'
1774 libdir_default='${prefix}/lib'
1775 mandir_default='${prefix}/share/man'
1776 shlibdir_default="$libdir_default"
1777
1778 # toolchain
1779 ar_default="ar"
1780 cc_default="gcc"
1781 host_cc_default="gcc"
1782 ln_s="ln -sf"
1783 nm_default="nm -g"
1784 objformat="elf"
1785 pkg_config_default=pkg-config
1786 ranlib="ranlib"
1787 yasmexe="yasm"
1788
1789 nogas=":"
1790
1791 # machine
1792 arch_default=$(uname -m)
1793 cpu="generic"
1794
1795 # OS
1796 target_os_default=$(tolower $(uname -s))
1797 host_os=$target_os_default
1798
1799 # configurable options
1800 enable $PROGRAM_LIST
1801
1802 enable avcodec
1803 enable avdevice
1804 enable avfilter
1805 enable avformat
1806 enable avresample
1807 enable avutil
1808 enable swscale
1809
1810 enable asm
1811 enable debug
1812 enable doc
1813 enable network
1814 enable optimizations
1815 enable safe_bitstream_reader
1816 enable static
1817 enable swscale_alpha
1818
1819 # build settings
1820 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1821 AVSERVERLDFLAGS=-Wl,-E
1822 LIBPREF="lib"
1823 LIBSUF=".a"
1824 FULLNAME='$(NAME)$(BUILDSUF)'
1825 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1826 SLIBPREF="lib"
1827 SLIBSUF=".so"
1828 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1829 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1830 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1831 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1832 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1833 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1834
1835 asflags_filter=echo
1836 cflags_filter=echo
1837 ldflags_filter=echo
1838
1839 AS_C='-c'
1840 AS_O='-o $@'
1841 CC_C='-c'
1842 CC_E='-E -o $@'
1843 CC_O='-o $@'
1844 LD_O='-o $@'
1845 LD_LIB='-l%'
1846 LD_PATH='-L'
1847 HOSTCC_C='-c'
1848 HOSTCC_O='-o $@'
1849 HOSTLD_O='-o $@'
1850
1851 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1852 host_libs='-lm'
1853 host_cflags_filter=echo
1854 host_ldflags_filter=echo
1855
1856 target_path='$(CURDIR)'
1857
1858 # since the object filename is not given with the -MM flag, the compiler
1859 # is only able to print the basename, and we must add the path ourselves
1860 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1861 DEPFLAGS='-MM'
1862
1863 # find source path
1864 if test -f configure; then
1865 source_path=.
1866 else
1867 source_path=$(cd $(dirname "$0"); pwd)
1868 echo "$source_path" | grep -q '[[:blank:]]' &&
1869 die "Out of tree builds are impossible with whitespace in source path."
1870 test -e "$source_path/config.h" &&
1871 die "Out of tree builds are impossible with config.h in source dir."
1872 fi
1873
1874 for v in "$@"; do
1875 r=${v#*=}
1876 l=${v%"$r"}
1877 r=$(sh_quote "$r")
1878 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1879 done
1880
1881 find_things(){
1882 thing=$1
1883 pattern=$2
1884 file=$source_path/$3
1885 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1886 }
1887
1888 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1889 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1890 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1891 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1892 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1893 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1894 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1895 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1896 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1897 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1898 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1899
1900 ALL_COMPONENTS="
1901 $BSF_LIST
1902 $DECODER_LIST
1903 $DEMUXER_LIST
1904 $ENCODER_LIST
1905 $FILTER_LIST
1906 $HWACCEL_LIST
1907 $INDEV_LIST
1908 $MUXER_LIST
1909 $OUTDEV_LIST
1910 $PARSER_LIST
1911 $PROTOCOL_LIST
1912 "
1913
1914 find_tests(){
1915 map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1916 }
1917
1918 LAVF_TESTS=$(find_tests lavf)
1919 LAVFI_TESTS=$(find_tests lavfi)
1920 SEEK_TESTS=$(find_tests seek seek_)
1921
1922 ALL_TESTS="$LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1923
1924 for n in $COMPONENT_LIST; do
1925 v=$(toupper ${n%s})_LIST
1926 eval enable \$$v
1927 eval ${n}_if_any="\$$v"
1928 done
1929
1930 enable $ARCH_EXT_LIST $ALL_TESTS
1931
1932 die_unknown(){
1933 echo "Unknown option \"$1\"."
1934 echo "See $0 --help for available options."
1935 exit 1
1936 }
1937
1938 show_list() {
1939 suffix=_$1
1940 shift
1941 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1942 exit 0
1943 }
1944
1945 rand_list(){
1946 IFS=', '
1947 set -- $*
1948 unset IFS
1949 for thing; do
1950 comp=${thing%:*}
1951 prob=${thing#$comp}
1952 prob=${prob#:}
1953 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
1954 echo "prob ${prob:-0.5}"
1955 printf '%s\n' $comp
1956 done
1957 }
1958
1959 do_random(){
1960 action=$1
1961 shift
1962 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
1963 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
1964 }
1965
1966 for opt do
1967 optval="${opt#*=}"
1968 case "$opt" in
1969 --extra-ldflags=*) add_ldflags $optval
1970 ;;
1971 --extra-libs=*) add_extralibs $optval
1972 ;;
1973 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1974 ;;
1975 --enable-debug=*) debuglevel="$optval"
1976 ;;
1977 --disable-everything)
1978 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1979 ;;
1980 --enable-random|--disable-random)
1981 action=${opt%%-random}
1982 do_random ${action#--} $COMPONENT_LIST
1983 ;;
1984 --enable-random=*|--disable-random=*)
1985 action=${opt%%-random=*}
1986 do_random ${action#--} $optval
1987 ;;
1988 --enable-*=*|--disable-*=*)
1989 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1990 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1991 eval list=\$$(toupper $thing)_LIST
1992 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1993 $action $(filter "$name" $list)
1994 ;;
1995 --enable-?*|--disable-?*)
1996 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1997 if is_in $option $COMPONENT_LIST; then
1998 test $action = disable && action=unset
1999 eval $action \$$(toupper ${option%s})_LIST
2000 elif is_in $option $CMDLINE_SELECT; then
2001 $action $option
2002 else
2003 die_unknown $opt
2004 fi
2005 ;;
2006 --list-*)
2007 NAME="${opt#--list-}"
2008 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2009 NAME=${NAME%s}
2010 eval show_list $NAME \$$(toupper $NAME)_LIST
2011 ;;
2012 --help|-h) show_help
2013 ;;
2014 *)
2015 optname="${opt%%=*}"
2016 optname="${optname#--}"
2017 optname=$(echo "$optname" | sed 's/-/_/g')
2018 if is_in $optname $CMDLINE_SET; then
2019 eval $optname='$optval'
2020 elif is_in $optname $CMDLINE_APPEND; then
2021 append $optname "$optval"
2022 else
2023 die_unknown $opt
2024 fi
2025 ;;
2026 esac
2027 done
2028
2029 disabled logging && logfile=/dev/null
2030
2031 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2032 set >> $logfile
2033
2034 test -n "$cross_prefix" && enable cross_compile
2035
2036 if enabled cross_compile; then
2037 test -n "$arch" && test -n "$target_os" ||
2038 die "Must specify target arch and OS when cross-compiling"
2039 fi
2040
2041 set_default arch target_os
2042
2043 ar_default="${cross_prefix}${ar_default}"
2044 cc_default="${cross_prefix}${cc_default}"
2045 nm_default="${cross_prefix}${nm_default}"
2046 pkg_config_default="${cross_prefix}${pkg_config_default}"
2047 ranlib="${cross_prefix}${ranlib}"
2048
2049 sysinclude_default="${sysroot}/usr/include"
2050
2051 case "$toolchain" in
2052 msvc)
2053 cc_default="c99wrap cl"
2054 ld_default="c99wrap link"
2055 nm_default="dumpbin -symbols"
2056 ar_default="lib"
2057 ;;
2058 ?*)
2059 die "Unknown toolchain $toolchain"
2060 ;;
2061 esac
2062
2063 set_default cc pkg_config sysinclude
2064 enabled cross_compile || host_cc_default=$cc
2065 set_default host_cc
2066
2067 if ! $pkg_config --version >/dev/null 2>&1; then
2068 warn "$pkg_config not found, library detection may fail."
2069 pkg_config=false
2070 fi
2071
2072 exesuf() {
2073 case $1 in
2074 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2075 esac
2076 }
2077
2078 EXESUF=$(exesuf $target_os)
2079 HOSTEXESUF=$(exesuf $host_os)
2080
2081 # set temporary file name
2082 : ${TMPDIR:=$TEMPDIR}
2083 : ${TMPDIR:=$TMP}
2084 : ${TMPDIR:=/tmp}
2085
2086 if ! check_cmd mktemp -u XXXXXX; then
2087 # simple replacement for missing mktemp
2088 # NOT SAFE FOR GENERAL USE
2089 mktemp(){
2090 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2091 }
2092 fi
2093
2094 tmpfile(){
2095 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2096 (set -C; exec > $tmp) 2>/dev/null ||
2097 die "Unable to create temporary file in $TMPDIR."
2098 append TMPFILES $tmp
2099 eval $1=$tmp
2100 }
2101
2102 trap 'rm -f -- $TMPFILES' EXIT
2103
2104 tmpfile TMPASM .asm
2105 tmpfile TMPC .c
2106 tmpfile TMPE $EXESUF
2107 tmpfile TMPH .h
2108 tmpfile TMPO .o
2109 tmpfile TMPS .S
2110 tmpfile TMPSH .sh
2111 tmpfile TMPV .ver
2112
2113 unset -f mktemp
2114
2115 chmod +x $TMPE
2116
2117 # make sure we can execute files in $TMPDIR
2118 cat > $TMPSH 2>> $logfile <<EOF
2119 #! /bin/sh
2120 EOF
2121 chmod +x $TMPSH >> $logfile 2>&1
2122 if ! $TMPSH >> $logfile 2>&1; then
2123 cat <<EOF
2124 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2125 variable to another directory and make sure that it is not mounted noexec.
2126 EOF
2127 die "Sanity test failed."
2128 fi
2129
2130 msvc_flags(){
2131 for flag; do
2132 case $flag in
2133 -fomit-frame-pointer) echo -Oy ;;
2134 -g) echo -Z7 ;;
2135 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2136 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2137 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2138 -wd4996 ;;
2139 -std=c99) ;;
2140 -fno-math-errno) ;;
2141 -fno-common) ;;
2142 -fno-signed-zeros) ;;
2143 -lz) echo zlib.lib ;;
2144 -lavifil32) echo vfw32.lib ;;
2145 -lavicap32) echo vfw32.lib user32.lib ;;
2146 -l*) echo ${flag#-l}.lib ;;
2147 *) echo $flag ;;
2148 esac
2149 done
2150 }
2151
2152 pgi_flags(){
2153 for flag; do
2154 case $flag in
2155 -fomit-frame-pointer) echo -Mnoframe ;;
2156 -g) echo -gopt ;;
2157 *) echo $flag ;;
2158 esac
2159 done
2160 }
2161
2162 suncc_flags(){
2163 for flag; do
2164 case $flag in
2165 -march=*|-mcpu=*)
2166 case "${flag#*=}" in
2167 native) echo -xtarget=native ;;
2168 v9|niagara) echo -xarch=sparc ;;
2169 ultrasparc) echo -xarch=sparcvis ;;
2170 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2171 i586|pentium) echo -xchip=pentium ;;
2172 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2173 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2174 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2175 pentium4*) echo -xtarget=pentium4 ;;
2176 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2177 *-sse3) echo -xarch=sse3 ;;
2178 core2) echo -xarch=ssse3 -xchip=core2 ;;
2179 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2180 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2181 k8|opteron|athlon64|athlon-fx)
2182 echo -xarch=sse2a ;;
2183 athlon*) echo -xarch=pentium_proa ;;
2184 esac
2185 ;;
2186 -std=c99) echo -xc99 ;;
2187 -fomit-frame-pointer) echo -xregs=frameptr ;;
2188 -fPIC) echo -KPIC -xcode=pic32 ;;
2189 -W*,*) echo $flag ;;
2190 -f*-*|-W*) ;;
2191 *) echo $flag ;;
2192 esac
2193 done
2194 }
2195
2196 tms470_flags(){
2197 for flag; do
2198 case $flag in
2199 -march=*|-mcpu=*)
2200 case "${flag#*=}" in
2201 armv7-a|cortex-a*) echo -mv=7a8 ;;
2202 armv7-r|cortex-r*) echo -mv=7r4 ;;
2203 armv7-m|cortex-m*) echo -mv=7m3 ;;
2204 armv6*|arm11*) echo -mv=6 ;;
2205 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2206 echo -mv=5e ;;
2207 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2208 esac
2209 ;;
2210 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2211 -mfpu=vfp) echo --float_support=vfpv2 ;;
2212 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2213 -msoft-float) echo --float_support=vfplib ;;
2214 -O[0-3]|-mf=*) echo $flag ;;
2215 -g) echo -g -mn ;;
2216 -pds=*) echo $flag ;;
2217 -D*|-I*) echo $flag ;;
2218 --gcc|--abi=*) echo $flag ;;
2219 -me) echo $flag ;;
2220 esac
2221 done
2222 }
2223
2224 probe_cc(){
2225 pfx=$1
2226 _cc=$2
2227
2228 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2229 unset _ld_o _ldflags _ld_lib _ld_path
2230 unset _depflags _DEPCMD _DEPFLAGS
2231 _flags_filter=echo
2232
2233 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2234 _type=llvm_gcc
2235 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2236 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2237 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2238 _cflags_speed='-O3'
2239 _cflags_size='-Os'
2240 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2241 _type=gcc
2242 gcc_version=$($_cc --version | head -n1)
2243 gcc_basever=$($_cc -dumpversion)
2244 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2245 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2246 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2247 if ! $_cc -dumpversion | grep -q '^2\.'; then
2248 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2249 fi
2250 _cflags_speed='-O3'
2251 _cflags_size='-Os'
2252 elif $_cc --version 2>/dev/null | grep -q Intel; then
2253 _type=icc
2254 _ident=$($_cc --version | head -n1)
2255 _depflags='-MMD'
2256 _cflags_speed='-O3'
2257 _cflags_size='-Os'
2258 _cflags_noopt='-O1'
2259 elif $_cc -v 2>&1 | grep -q xlc; then
2260 _type=xlc
2261 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2262 _cflags_speed='-O5'
2263 _cflags_size='-O5 -qcompact'
2264 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2265 _type=ccc
2266 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2267 _DEPFLAGS='-M'
2268 debuglevel=3
2269 _ldflags='-Wl,-z,now' # calls to libots crash without this
2270 _cflags_speed='-fast'
2271 _cflags_size='-O1'
2272 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2273 test -d "$sysroot" || die "No valid sysroot specified."
2274 _type=armcc
2275 _ident=$($_cc --vsn | head -n1)
2276 armcc_conf="$PWD/armcc.conf"
2277 $_cc --arm_linux_configure \
2278 --arm_linux_config_file="$armcc_conf" \
2279 --configure_sysroot="$sysroot" \
2280 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2281 die "Error creating armcc configuration file."
2282 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2283 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2284 as_default="${cross_prefix}gcc"
2285 _depflags='-MMD'
2286 _cflags_speed='-O3'
2287 _cflags_size='-Os'
2288 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2289 _type=tms470
2290 _ident=$($_cc -version | head -n1 | tr -s ' ')
2291 _flags='--gcc --abi=eabi -me'
2292 _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2293 _cc_e='-ppl -fe=$@'
2294 _cc_o='-fe=$@'
2295 as_default="${cross_prefix}gcc"
2296 ld_default="${cross_prefix}gcc"
2297 _depflags='-ppa -ppd=$(@:.o=.d)'
2298 _cflags_speed='-O3 -mf=5'
2299 _cflags_size='-O3 -mf=2'
2300 _flags_filter=tms470_flags
2301 elif $_cc -v 2>&1 | grep -q clang; then
2302 _type=clang
2303 _ident=$($_cc --version | head -n1)
2304 _depflags='-MMD'
2305 _cflags_speed='-O3'
2306 _cflags_size='-Os'
2307 elif $_cc -V 2>&1 | grep -q Sun; then
2308 _type=suncc
2309 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2310 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2311 _DEPFLAGS='-xM1 -xc99'
2312 _ldflags='-std=c99'
2313 _cflags_speed='-O5'
2314 _cflags_size='-O5 -xspace'
2315 _flags_filter=suncc_flags
2316 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2317 _type=pathscale
2318 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2319 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2320 _cflags_speed='-O2'
2321 _cflags_size='-Os'
2322 _flags_filter='filter_out -Wdisabled-optimization'
2323 elif $_cc -v 2>&1 | grep -q Open64; then
2324 _type=open64
2325 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2326 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2327 _cflags_speed='-O2'
2328 _cflags_size='-Os'
2329 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2330 elif $_cc -V 2>&1 | grep -q Portland; then
2331 _type=pgi
2332 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2333 opt_common='-alias=ansi -Mlre -Mpre'
2334 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2335 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2336 _cflags_noopt="-O1"
2337 _flags_filter=pgi_flags
2338 elif $_cc 2>&1 | grep -q Microsoft; then
2339 _type=msvc
2340 _ident=$($cc 2>&1 | head -n1)
2341 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2342 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2343 _cflags_speed="-O2"
2344 _cflags_size="-O1"
2345 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2346 if $_cc 2>&1 | grep -q Linker; then
2347 _ld_o='-out $@'
2348 else
2349 _ld_o='-Fe$@'
2350 fi
2351 _cc_o='-Fo $@'
2352 _cc_e='-P -Fi $@'
2353 _flags_filter=msvc_flags
2354 _ld_lib='lib%.a'
2355 _ld_path='-libpath:'
2356 _flags='-nologo'
2357 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2358 if [ $pfx = hostcc ]; then
2359 append _cflags -Dsnprintf=_snprintf
2360 fi
2361 fi
2362
2363 eval ${pfx}_type=\$_type
2364 eval ${pfx}_ident=\$_ident
2365 }
2366
2367 set_ccvars(){
2368 eval ${1}_C=\${_cc_c-\${${1}_C}}
2369 eval ${1}_E=\${_cc_e-\${${1}_E}}
2370 eval ${1}_O=\${_cc_o-\${${1}_O}}
2371
2372 if [ -n "$_depflags" ]; then
2373 eval ${1}_DEPFLAGS=\$_depflags
2374 else
2375 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2376 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2377 eval DEP${1}FLAGS=\$_flags
2378 fi
2379 }
2380
2381 probe_cc cc "$cc"
2382 cflags_filter=$_flags_filter
2383 cflags_speed=$_cflags_speed
2384 cflags_size=$_cflags_size
2385 cflags_noopt=$_cflags_noopt
2386 add_cflags $_flags $_cflags
2387 cc_ldflags=$_ldflags
2388 set_ccvars CC
2389
2390 probe_cc hostcc "$host_cc"
2391 host_cflags_filter=$_flags_filter
2392 add_host_cflags $_flags $_cflags
2393 set_ccvars HOSTCC
2394
2395 test -n "$cc_type" && enable $cc_type ||
2396 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2397
2398 : ${as_default:=$cc}
2399 : ${dep_cc_default:=$cc}
2400 : ${ld_default:=$cc}
2401 : ${host_ld_default:=$host_cc}
2402 set_default ar as dep_cc ld host_ld
2403
2404 probe_cc as "$as"
2405 asflags_filter=$_flags_filter
2406 add_asflags $_flags $_cflags
2407 set_ccvars AS
2408
2409 probe_cc ld "$ld"
2410 ldflags_filter=$_flags_filter
2411 add_ldflags $_flags $_ldflags
2412 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2413 LD_O=${_ld_o-$LD_O}
2414 LD_LIB=${_ld_lib-$LD_LIB}
2415 LD_PATH=${_ld_path-$LD_PATH}
2416
2417 probe_cc hostld "$host_ld"
2418 host_ldflags_filter=$_flags_filter
2419 add_host_ldflags $_flags $_ldflags
2420 HOSTLD_O=${_ld_o-$HOSTLD_O}
2421
2422 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2423 probe_cc depcc "$dep_cc"
2424 CCDEP=${_DEPCMD:-$DEPCMD}
2425 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2426 DEPCCFLAGS=$_flags
2427 fi
2428
2429 if $ar 2>&1 | grep -q Microsoft; then
2430 arflags="-nologo"
2431 ar_o='-out:$@'
2432 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2433 arflags="rq"
2434 ar_o='$@'
2435 else
2436 arflags="rc"
2437 ar_o='$@'
2438 fi
2439
2440 add_cflags $extra_cflags
2441 add_asflags $extra_cflags
2442
2443 if test -n "$sysroot"; then
2444 case "$cc_type" in
2445 gcc|llvm_gcc|clang)
2446 add_cppflags --sysroot="$sysroot"
2447 add_ldflags --sysroot="$sysroot"
2448 ;;
2449 tms470)
2450 add_cppflags -I"$sysinclude"
2451 add_ldflags --sysroot="$sysroot"
2452 ;;
2453 esac
2454 fi
2455
2456 if test "$cpu" = host; then
2457 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2458
2459 case "$cc_type" in
2460 gcc|llvm_gcc)
2461 check_native(){
2462 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2463 sed -n "/cc1.*$1=/{
2464 s/.*$1=\\([^ ]*\\).*/\\1/
2465 p
2466 q
2467 }" $TMPE
2468 }
2469 cpu=$(check_native -march || check_native -mcpu)
2470 ;;
2471 esac
2472
2473 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2474 fi
2475
2476 # Deal with common $arch aliases
2477 case "$arch" in
2478 arm*)
2479 arch="arm"
2480 ;;
2481 mips|mipsel|IP*)
2482 arch="mips"
2483 ;;
2484 mips64*)
2485 arch="mips"
2486 subarch="mips64"
2487 ;;
2488 parisc|hppa)
2489 arch="parisc"
2490 ;;
2491 parisc64|hppa64)
2492 arch="parisc"
2493 subarch="parisc64"
2494 ;;
2495 "Power Macintosh"|ppc|powerpc)
2496 arch="ppc"
2497 ;;
2498 ppc64|powerpc64)
2499 arch="ppc"
2500 subarch="ppc64"
2501 ;;
2502 s390|s390x)
2503 arch="s390"
2504 ;;
2505 sh4|sh)
2506 arch="sh4"
2507 ;;
2508 sun4u|sparc64)
2509 arch="sparc"
2510 subarch="sparc64"
2511 ;;
2512 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2513 arch="x86"
2514 ;;
2515 esac
2516
2517 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2518 enable $arch
2519
2520 # Add processor-specific flags
2521 if test "$cpu" = generic; then
2522 : do nothing
2523 elif enabled ppc; then
2524
2525 case $(tolower $cpu) in
2526 601|ppc601|powerpc601)
2527 cpuflags="-mcpu=601"
2528 disable altivec
2529 ;;
2530 603*|ppc603*|powerpc603*)
2531 cpuflags="-mcpu=603"
2532 disable altivec
2533 ;;
2534 604*|ppc604*|powerpc604*)
2535 cpuflags="-mcpu=604"
2536 disable altivec
2537 ;;
2538 g3|75*|ppc75*|powerpc75*)
2539 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2540 disable altivec
2541 ;;
2542 g4|745*|ppc745*|powerpc745*)
2543 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2544 ;;
2545 74*|ppc74*|powerpc74*)
2546 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2547 ;;
2548 g5|970|ppc970|powerpc970)
2549 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2550 ;;
2551 power[3-7]*)
2552 cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2553 ;;
2554 cell)
2555 cpuflags="-mcpu=cell"
2556 enable ldbrx
2557 ;;
2558 e500mc)
2559 cpuflags="-mcpu=e500mc"
2560 disable altivec
2561 ;;
2562 e500v2)
2563 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2564 disable altivec
2565 ;;
2566 e500)
2567 cpuflags="-mcpu=8540 -mhard-float"
2568 disable altivec
2569 ;;
2570 esac
2571
2572 elif enabled x86; then
2573
2574 case $cpu in
2575 i[345]86|pentium)
2576 cpuflags="-march=$cpu"
2577 disable mmx
2578 ;;
2579 # targets that do NOT support conditional mov (cmov)
2580 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2581 cpuflags="-march=$cpu"
2582 disable cmov
2583 ;;
2584 # targets that do support conditional mov (cmov)
2585 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2586 cpuflags="-march=$cpu"
2587 enable cmov
2588 enable fast_cmov
2589 ;;
2590 # targets that do support conditional mov but on which it's slow
2591 pentium4|pentium4m|prescott|nocona)
2592 cpuflags="-march=$cpu"
2593 enable cmov
2594 disable fast_cmov
2595 ;;
2596 esac
2597
2598 elif enabled sparc; then
2599
2600 case $cpu in
2601 niagara)
2602 cpuflags="-mcpu=$cpu"
2603 disable vis
2604 ;;
2605 sparc64)
2606 cpuflags="-mcpu=v9"
2607 ;;
2608 esac
2609
2610 elif enabled arm; then
2611
2612 case $cpu in
2613 armv*)
2614 cpuflags="-march=$cpu"
2615 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2616 ;;
2617 *)
2618 cpuflags="-mcpu=$cpu"
2619 case $cpu in
2620 cortex-a*) subarch=armv7a ;;
2621 cortex-r*) subarch=armv7r ;;
2622 cortex-m*) enable thumb; subarch=armv7m ;;
2623 arm11*) subarch=armv6 ;;
2624 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2625 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2626 esac
2627 ;;
2628 esac
2629
2630 elif enabled alpha; then
2631
2632 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2633
2634 elif enabled bfin; then
2635
2636 cpuflags="-mcpu=$cpu"
2637
2638 elif enabled mips; then
2639
2640 cpuflags="-march=$cpu"
2641
2642 elif enabled avr32; then
2643
2644 case $cpu in
2645 ap7[02]0[0-2])
2646 subarch="avr32_ap"
2647 cpuflags="-mpart=$cpu"
2648 ;;
2649 ap)
2650 subarch="avr32_ap"
2651 cpuflags="-march=$cpu"
2652 ;;
2653 uc3[ab]*)
2654 subarch="avr32_uc"
2655 cpuflags="-mcpu=$cpu"
2656 ;;
2657 uc)
2658 subarch="avr32_uc"
2659 cpuflags="-march=$cpu"
2660 ;;
2661 esac
2662
2663 fi
2664
2665 add_cflags $cpuflags
2666 add_asflags $cpuflags
2667
2668 # compiler sanity check
2669 check_exec <<EOF
2670 int main(void){ return 0; }
2671 EOF
2672 if test "$?" != 0; then
2673 echo "$cc is unable to create an executable file."
2674 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2675 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2676 echo "Only do this if you know what cross compiling means."
2677 fi
2678 die "C compiler test failed."
2679 fi
2680
2681 add_cppflags -D_ISOC99_SOURCE
2682 check_cflags -std=c99
2683 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2684 #include <stdlib.h>
2685 EOF
2686 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2687 #include <stdlib.h>
2688 EOF
2689
2690 check_host_cflags -std=c99
2691 check_host_cflags -Wall
2692
2693 case "$arch" in
2694 alpha|ia64|mips|parisc|sparc)
2695 spic=$shared
2696 ;;
2697 x86)
2698 subarch="x86_32"
2699 check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2700 if test "$subarch" = "x86_64"; then
2701 spic=$shared
2702 fi
2703 ;;
2704 esac
2705
2706 enable $subarch
2707 enabled spic && enable pic
2708
2709 # OS specific
2710 case $target_os in
2711 haiku)
2712 prefix_default="/boot/common"
2713 network_extralibs="-lnetwork"
2714 host_libs=
2715 ;;
2716 sunos)
2717 AVSERVERLDFLAGS=""
2718 SHFLAGS='-shared -Wl,-h,$$(@F)'
2719 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2720 network_extralibs="-lsocket -lnsl"
2721 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2722 # When using suncc to build, the Solaris linker will mark
2723 # an executable with each instruction set encountered by
2724 # the Solaris assembler. As our libraries contain their own
2725 # guards for processor-specific code, instead suppress
2726 # generation of the HWCAPS ELF section on Solaris x86 only.
2727 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2728 nm_default='nm -P -g'
2729 ;;
2730 netbsd)
2731 disable symver
2732 oss_indev_extralibs="-lossaudio"
2733 oss_outdev_extralibs="-lossaudio"
2734 ;;
2735 openbsd|bitrig)
2736 # On OpenBSD 4.5. the compiler does not use PIC unless
2737 # explicitly using -fPIC. Libav builds fine without PIC,
2738 # however the generated executable will not do anything
2739 # (simply quits with exit-code 1, no crash, no output).
2740 # Thus explicitly enable PIC here.
2741 enable pic
2742 disable symver
2743 SHFLAGS='-shared'
2744 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2745 SLIB_INSTALL_LINKS=
2746 oss_indev_extralibs="-lossaudio"
2747 oss_outdev_extralibs="-lossaudio"
2748 ;;
2749 dragonfly)
2750 disable symver
2751 ;;
2752 freebsd)
2753 ;;
2754 bsd/os)
2755 add_extralibs -lpoll -lgnugetopt
2756 ;;
2757 darwin)
2758 gas="gas-preprocessor.pl $cc"
2759 enabled ppc && add_asflags -force_cpusubtype_ALL
2760 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2761 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2762 add_ldflags -Wl,-dynamic,-search_paths_first
2763 SLIBSUF=".dylib"
2764 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2765 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2766 AVSERVERLDFLAGS=-Wl,-bind_at_load
2767 objformat="macho"
2768 enabled x86_64 && objformat="macho64"
2769 enabled_any pic shared ||
2770 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2771 ;;
2772 mingw32*)
2773 if test $target_os = "mingw32ce"; then
2774 disable network
2775 else
2776 target_os=mingw32
2777 fi
2778 LIBTARGET=i386
2779 if enabled x86_64; then
2780 LIBTARGET="i386:x86-64"
2781 elif enabled arm; then
2782 LIBTARGET=arm-wince
2783 fi
2784 shlibdir_default="$bindir_default"
2785 SLIBPREF=""
2786 SLIBSUF=".dll"
2787 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2788 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2789 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2790 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2791 SLIB_INSTALL_LINKS=
2792 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2793 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2794 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2795 objformat="win32"
2796 dlltool="${cross_prefix}dlltool"
2797 ranlib=:
2798 enable dos_paths
2799 check_cflags -fno-common
2800 add_cppflags -U__STRICT_ANSI__
2801 ;;
2802 cygwin*)
2803 target_os=cygwin
2804 shlibdir_default="$bindir_default"
2805 SLIBPREF="cyg"
2806 SLIBSUF=".dll"
2807 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2808 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2809 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2810 SLIB_INSTALL_LINKS=
2811 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2812 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2813 objformat="win32"
2814 enable dos_paths
2815 check_cflags -fno-common
2816 add_cppflags -U__STRICT_ANSI__
2817 ;;
2818 *-dos|freedos|opendos)
2819 network_extralibs="-lsocket"
2820 objformat="coff"
2821 enable dos_paths
2822 add_cppflags -U__STRICT_ANSI__
2823 ;;
2824 linux)
2825 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2826 enable dv1394
2827 ;;
2828 irix*)
2829 target_os=irix
2830 ranlib="echo ignoring ranlib"
2831 ;;
2832 os/2*)
2833 ln_s="cp -f"
2834 objformat="aout"
2835 add_cppflags -D_GNU_SOURCE
2836 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2837 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2838 AVSERVERLDFLAGS=""
2839 LIBSUF="_s.a"
2840 SLIBPREF=""
2841 SLIBSUF=".dll"
2842 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2843 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2844 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2845 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2846 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2847 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2848 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2849 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2850 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2851 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2852 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2853 enable dos_paths
2854 ;;
2855 gnu/kfreebsd)
2856 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2857 ;;
2858 gnu)
2859 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2860 ;;
2861 qnx)
2862 add_cppflags -D_QNX_SOURCE
2863 network_extralibs="-lsocket"
2864 ;;
2865 symbian)
2866 SLIBSUF=".dll"
2867 enable dos_paths
2868 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2869 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2870 add_ldflags -Wl,--target1-abs,--no-undefined \
2871 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2872 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2873 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2874 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2875 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2876 ;;
2877 none)
2878 ;;
2879 *)
2880 die "Unknown OS '$target_os'."
2881 ;;
2882 esac
2883
2884 # determine libc flavour
2885
2886 if check_cpp_condition features.h "defined __UCLIBC__"; then
2887 libc_type=uclibc
2888 elif check_cpp_condition features.h "defined __GLIBC__"; then
2889 libc_type=glibc
2890 elif check_header _mingw.h; then
2891 libc_type=mingw
2892 check_cpp_condition _mingw.h \
2893 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
2894 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2895 die "ERROR: MinGW runtime version must be >= 3.15."
2896 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
2897 libc_type=newlib
2898 elif check_func_headers stdlib.h _get_doserrno; then
2899 libc_type=msvcrt
2900 add_cflags -Dstrtod=avpriv_strtod
2901 add_cflags -Dsnprintf=avpriv_snprintf \
2902 -D_snprintf=avpriv_snprintf \
2903 -Dvsnprintf=avpriv_vsnprintf
2904 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
2905 libc_type=klibc
2906 fi
2907
2908 test -n "$libc_type" && enable $libc_type
2909
2910 esc(){
2911 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2912 }
2913
2914 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2915
2916 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2917
2918 set_default $PATHS_LIST
2919 set_default nm
2920
2921 # we need to build at least one lib type
2922 if ! enabled_any static shared; then
2923 cat <<EOF
2924 At least one library type must be built.
2925 Specify --enable-static to build the static libraries or --enable-shared to
2926 build the shared libraries as well. To only build the shared libraries specify
2927 --disable-static in addition to --enable-shared.
2928 EOF
2929 exit 1;
2930 fi
2931
2932 die_license_disabled() {
2933 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2934 }
2935
2936 die_license_disabled gpl libcdio
2937 die_license_disabled gpl libx264
2938 die_license_disabled gpl libxavs
2939 die_license_disabled gpl libxvid
2940 die_license_disabled gpl x11grab
2941
2942 die_license_disabled nonfree libfaac
2943 die_license_disabled nonfree libfdk_aac
2944 die_license_disabled nonfree openssl
2945
2946 die_license_disabled version3 libopencore_amrnb
2947 die_license_disabled version3 libopencore_amrwb
2948 die_license_disabled version3 libvo_aacenc
2949 die_license_disabled version3 libvo_amrwbenc
2950
2951 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2952
2953 disabled optimizations || check_cflags -fomit-frame-pointer
2954
2955 enable_pic() {
2956 enable pic
2957 add_cppflags -DPIC
2958 add_cflags -fPIC
2959 add_asflags -fPIC
2960 }
2961
2962 enabled pic && enable_pic
2963
2964 check_cc <<EOF || die "Symbol mangling check failed."
2965 int ff_extern;
2966 EOF
2967 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2968 extern_prefix=${sym%%ff_extern*}
2969
2970 check_cc <<EOF && enable_weak inline_asm
2971 void foo(void) { __asm__ volatile ("" ::); }
2972 EOF
2973
2974 _restrict=
2975 for restrict_keyword in restrict __restrict__ __restrict; do
2976 check_cc <<EOF && _restrict=$restrict_keyword && break
2977 void foo(char * $restrict_keyword p);
2978 EOF
2979 done
2980
2981 check_cc <<EOF && enable attribute_packed
2982 struct { int x; } __attribute__((packed)) x;
2983 EOF
2984
2985 check_cc <<EOF && enable attribute_may_alias
2986 union { int x; } __attribute__((may_alias)) x;
2987 EOF
2988
2989 check_cc <<EOF || die "endian test failed"
2990 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2991 EOF
2992 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2993
2994 if enabled alpha; then
2995
2996 check_cflags -mieee
2997
2998 elif enabled arm; then
2999
3000 enabled thumb && check_cflags -mthumb || check_cflags -marm
3001 nogas=die
3002
3003 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3004 enable vfp_args
3005 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3006 case "${cross_prefix:-$cc}" in
3007 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3008 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3009 __asm__ (".eabi_attribute 28, 1");
3010 int main(void) { return 0; }
3011 EOF
3012 esac
3013 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3014 fi
3015
3016 enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3017 enabled armv6 && check_inline_asm armv6 '"sadd16 r0, r0, r0"'
3018 enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3019 enabled armvfp && check_inline_asm armvfp '"fadds s0, s0, s0"'
3020 enabled neon && check_inline_asm neon '"vadd.i16 q0, q0, q0"'
3021 enabled vfpv3 && check_inline_asm vfpv3 '"vmov.f32 s0, #1.0"'
3022
3023 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3024 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3025
3026 enabled_all armv6t2 shared !pic && enable_pic
3027
3028 elif enabled mips; then
3029
3030 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3031 enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3032
3033 elif enabled ppc; then
3034
3035 enable local_aligned_8 local_aligned_16
3036
3037 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3038 check_inline_asm ibm_asm '"add 0, 0, 0"'
3039 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3040 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3041
3042 # AltiVec flags: The FSF version of GCC differs from the Apple version
3043 if enabled altivec; then
3044 nogas=warn
3045 check_cflags -maltivec -mabi=altivec &&
3046 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3047 check_cflags -faltivec
3048
3049 # check if our compiler supports Motorola AltiVec C API
3050 check_cc <<EOF || disable altivec
3051 $inc_altivec_h
3052 int main(void) {
3053 vector signed int v1 = (vector signed int) { 0 };
3054 vector signed int v2 = (vector signed int) { 1 };
3055 v1 = vec_add(v1, v2);
3056 return 0;
3057 }
3058 EOF
3059
3060 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3061 fi
3062
3063 elif enabled sparc; then
3064
3065 enabled vis &&
3066 check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3067 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3068
3069 elif enabled x86; then
3070
3071 check_code ld immintrin.h "return __xgetbv(0)" && enable xgetbv
3072 check_code ld intrin.h "int info[4]; __cpuid(info, 0)" && enable cpuid
3073 check_code ld intrin.h "__rdtsc()" && enable rdtsc
3074 check_code ld intrin.h "unsigned int x = __readeflags()" && enable rweflags
3075
3076 check_code ld mmintrin.h "_mm_empty()" && enable mm_empty
3077
3078 enable local_aligned_8 local_aligned_16
3079
3080 # check whether EBP is available on x86
3081 # As 'i' is stored on the stack, this program will crash
3082 # if the base pointer is used to access it because the
3083 # base pointer is cleared in the inline assembly code.
3084 check_exec_crash <<EOF && enable ebp_available
3085 volatile int i=0;
3086 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3087 return i;
3088 EOF
3089
3090 # check whether EBX is available on x86
3091 check_inline_asm ebx_available '""::"b"(0)' &&
3092 check_inline_asm ebx_available '"":::"%ebx"'
3093
3094 # check whether xmm clobbers are supported
3095 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3096
3097 # check whether binutils is new enough to compile SSSE3/MMXEXT
3098 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3099 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3100
3101 if ! disabled_any asm mmx yasm; then
3102 if check_cmd $yasmexe --version; then
3103 enabled x86_64 && yasm_extra="-m amd64"
3104 yasm_debug="-g dwarf2"
3105 elif check_cmd nasm -v; then
3106 yasmexe=nasm
3107 yasm_debug="-g -F dwarf"
3108 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3109 fi
3110
3111 YASMFLAGS="-f $objformat $yasm_extra"
3112 enabled pic && append YASMFLAGS "-DPIC"
3113 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3114 case "$objformat" in
3115 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3116 esac
3117
3118 check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3119 die "yasm not found, use --disable-yasm for a crippled build"
3120 check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx_external
3121 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3122 check_yasm "CPU amdnop" && enable cpunop
3123 fi
3124
3125 case "$cpu" in
3126 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3127 disable fast_clz
3128 ;;
3129 esac
3130
3131 fi
3132
3133 if enabled asm; then
3134 as=${gas:=$as}
3135 check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3136 $nogas "GNU assembler not found, install gas-preprocessor"
3137 fi
3138
3139 check_ldflags -Wl,--as-needed
3140
3141 if check_func dlopen; then
3142 ldl=
3143 elif check_func dlopen -ldl; then
3144 ldl=-ldl
3145 fi
3146
3147 if enabled network; then
3148 check_type "sys/types.h sys/socket.h" socklen_t
3149 check_type netdb.h "struct addrinfo"
3150 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3151 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3152 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3153 check_type netinet/in.h "struct sockaddr_in6"
3154 check_type poll.h "struct pollfd"
3155 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3156 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3157 check_type netinet/sctp.h "struct sctp_event_subscribe"
3158 check_func getaddrinfo $network_extralibs
3159 # Prefer arpa/inet.h over winsock2
3160 if check_header arpa/inet.h ; then
3161 check_func closesocket
3162 elif check_header winsock2.h ; then
3163 check_func_headers winsock2.h closesocket -lws2 &&
3164 network_extralibs="-lws2" ||
3165 { check_func_headers winsock2.h closesocket -lws2_32 &&
3166 network_extralibs="-lws2_32"; }
3167 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3168 check_type ws2tcpip.h socklen_t
3169 check_type ws2tcpip.h "struct addrinfo"
3170 check_type ws2tcpip.h "struct group_source_req"
3171 check_type ws2tcpip.h "struct ip_mreq_source"
3172 check_type ws2tcpip.h "struct ipv6_mreq"
3173 check_type winsock2.h "struct pollfd"
3174 check_type ws2tcpip.h "struct sockaddr_in6"
3175 check_type ws2tcpip.h "struct sockaddr_storage"
3176 check_struct winsock2.h "struct sockaddr" sa_len
3177 else
3178 disable network
3179 fi
3180 fi
3181
3182 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3183 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3184
3185 check_func fcntl
3186 check_func fork
3187 check_func gethrtime
3188 check_func getopt
3189 check_func getrusage
3190 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3191 check_func gettimeofday
3192 check_func inet_aton $network_extralibs
3193 check_func isatty
3194 check_func localtime_r
3195 check_func ${malloc_prefix}memalign && enable memalign
3196 check_func mkstemp
3197 check_func mmap
3198 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3199 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3200 check_func setrlimit
3201 check_func strerror_r
3202 check_func strptime
3203 check_func strtok_r
3204 check_func sched_getaffinity
3205 check_func sysconf
3206 check_func sysctl
3207 check_func usleep
3208 check_func_headers io.h setmode
3209 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3210 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3211 check_func_headers windows.h GetProcessAffinityMask
3212 check_func_headers windows.h GetProcessTimes
3213 check_func_headers windows.h GetSystemTimeAsFileTime
3214 check_func_headers windows.h MapViewOfFile
3215 check_func_headers windows.h Sleep
3216 check_func_headers windows.h VirtualAlloc
3217
3218 check_header direct.h
3219 check_header dlfcn.h
3220 check_header dxva.h
3221 check_header dxva2api.h
3222 check_header io.h
3223 check_header malloc.h
3224 check_header poll.h
3225 check_header sys/mman.h
3226 check_header sys/param.h
3227 check_header sys/resource.h
3228 check_header sys/select.h
3229 check_header sys/time.h
3230 check_header unistd.h
3231 check_header vdpau/vdpau.h
3232 check_header vdpau/vdpau_x11.h
3233 check_header windows.h
3234 check_header X11/extensions/XvMClib.h
3235
3236 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3237 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3238
3239 if ! disabled w32threads && ! enabled pthreads; then
3240 check_func _beginthreadex && enable w32threads
3241 fi
3242
3243 # check for some common methods of building with pthread support
3244 # do this before the optional library checks as some of them require pthreads
3245 if ! disabled pthreads && ! enabled w32threads; then
3246 enable pthreads
3247 if check_func pthread_create; then
3248 :
3249 elif check_func pthread_create -pthread; then
3250 add_cflags -pthread
3251 add_extralibs -pthread
3252 elif check_func pthread_create -pthreads; then
3253 add_cflags -pthreads
3254 add_extralibs -pthreads
3255 elif check_func pthread_create -lpthreadGC2; then
3256 add_extralibs -lpthreadGC2
3257 elif ! check_lib pthread.h pthread_create -lpthread; then
3258 disable pthreads
3259 fi
3260 fi
3261
3262 for thread in $THREADS_LIST; do
3263 if enabled $thread; then
3264 test -n "$thread_type" &&
3265 die "ERROR: Only one thread type must be selected." ||
3266 thread_type="$thread"
3267 fi
3268 done
3269
3270 check_lib math.h sin -lm && LIBM="-lm"
3271 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3272
3273 check_mathfunc cbrtf
3274 check_mathfunc exp2
3275 check_mathfunc exp2f
3276 check_mathfunc isinf
3277 check_mathfunc isnan
3278 check_mathfunc llrint
3279 check_mathfunc llrintf
3280 check_mathfunc log2
3281 check_mathfunc log2f
3282 check_mathfunc lrint
3283 check_mathfunc lrintf
3284 check_mathfunc rint
3285 check_mathfunc round
3286 check_mathfunc roundf
3287 check_mathfunc trunc
3288 check_mathfunc truncf
3289
3290 # these are off by default, so fail if requested and not available
3291 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3292 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3293 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3294 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3295 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3296 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3297 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
3298 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3299 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3300 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3301 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3302 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3303 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3304 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3305 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3306 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3307 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3308 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3309 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3310 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3311 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3312 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3313 enabled libvpx && {
3314 enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3315 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3316 enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
3317 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
3318 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3319 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3320 die "ERROR: libx264 version must be >= 0.118."; }
3321 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3322 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3323 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3324 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3325 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3326 die "ERROR: openssl not found"; }
3327
3328 if enabled gnutls; then
3329 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3330 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3331 fi
3332
3333 # libdc1394 check
3334 if enabled libdc1394; then
3335 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3336 enable libdc1394_2; } ||
3337 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3338 enable libdc1394_1; } ||
3339 die "ERROR: No version of libdc1394 found "
3340 fi
3341
3342 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3343 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3344 enable sdl &&
3345 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3346 fi
3347
3348 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3349
3350 check_header linux/fb.h
3351 check_header linux/videodev2.h
3352 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3353
3354 check_header sys/videoio.h
3355
3356 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3357 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3358 # w32api 3.12 had it defined wrong
3359 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3360
3361 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3362 { check_header dev/bktr/ioctl_meteor.h &&
3363 check_header dev/bktr/ioctl_bt848.h; } ||
3364 { check_header machine/ioctl_meteor.h &&
3365 check_header machine/ioctl_bt848.h; } ||
3366 { check_header dev/video/meteor/ioctl_meteor.h &&
3367 check_header dev/video/bktr/ioctl_bt848.h; } ||
3368 check_header dev/ic/bt8xx.h
3369
3370 check_header sndio.h
3371 check_header sys/soundcard.h
3372 check_header soundcard.h
3373
3374 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3375
3376 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3377 check_func jack_port_get_latency_range -ljack
3378
3379 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3380
3381 enabled libcdio &&
3382 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3383
3384 enabled x11grab &&
3385 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3386 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3387 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3388
3389 # check for VDA header
3390 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3391 enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3392 fi
3393
3394 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3395 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3396 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3397 fi
3398
3399 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3400
3401 # add some useful compiler flags if supported
3402 check_cflags -Wdeclaration-after-statement
3403 check_cflags -Wall
3404 check_cflags -Wno-parentheses
3405 check_cflags -Wno-switch
3406 check_cflags -Wno-format-zero-length
3407 check_cflags -Wdisabled-optimization
3408 check_cflags -Wpointer-arith
3409 check_cflags -Wredundant-decls
3410 check_cflags -Wno-pointer-sign
3411 check_cflags -Wcast-qual
3412 check_cflags -Wwrite-strings
3413 check_cflags -Wtype-limits
3414 check_cflags -Wundef
3415 check_cflags -Wmissing-prototypes
3416 check_cflags -Wstrict-prototypes
3417 enabled extra_warnings && check_cflags -Winline
3418
3419 # add some linker flags
3420 check_ldflags -Wl,--warn-common
3421 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3422 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3423
3424 enabled xmm_clobber_test &&
3425 check_ldflags -Wl,--wrap,avcodec_open2 \
3426 -Wl,--wrap,avcodec_decode_audio4 \
3427 -Wl,--wrap,avcodec_decode_video2 \
3428 -Wl,--wrap,avcodec_decode_subtitle2 \
3429 -Wl,--wrap,avcodec_encode_audio2 \
3430 -Wl,--wrap,avcodec_encode_video \
3431 -Wl,--wrap,avcodec_encode_subtitle \
3432 -Wl,--wrap,sws_scale ||
3433 disable xmm_clobber_test
3434
3435 echo "X{};" > $TMPV
3436 if test_ldflags -Wl,--version-script,$TMPV; then
3437 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3438 check_cc <<EOF && enable symver_asm_label
3439 void ff_foo(void) __asm__ ("av_foo@VERSION");
3440 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3441 EOF
3442 check_cc <<EOF && enable symver_gnu_asm
3443 __asm__(".symver ff_foo,av_foo@VERSION");
3444 void ff_foo(void) {}
3445 EOF
3446 fi
3447
3448 if [ -n "$optflags" ]; then
3449 add_cflags $optflags
3450 elif enabled small; then
3451 add_cflags $cflags_size
3452 elif enabled optimizations; then
3453 add_cflags $cflags_speed
3454 else
3455 add_cflags $cflags_noopt
3456 fi
3457 check_cflags -fno-math-errno
3458 check_cflags -fno-signed-zeros
3459
3460 if enabled icc; then
3461 # Just warnings, no remarks
3462 check_cflags -w1
3463 # -wd: Disable following warnings
3464 # 144, 167, 556: -Wno-pointer-sign
3465 # 1292: attribute "foo" ignored
3466 # 1419: external declaration in primary source file
3467 # 10006: ignoring unknown option -fno-signed-zeros
3468 # 10148: ignoring unknown option -Wno-parentheses
3469 # 10156: ignoring option '-W'; no argument required
3470 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3471 # 11030: Warning unknown option --as-needed
3472 # 10156: ignoring option '-export'; no argument required
3473 check_ldflags -wd10156,11030
3474 # Allow to compile with optimizations
3475 check_ldflags -march=$cpu
3476 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3477 enable ebp_available
3478 if enabled x86_32; then
3479 icc_version=$($cc -dumpversion)
3480 test ${icc_version%%.*} -ge 11 &&
3481 check_cflags -falign-stack=maintain-16-byte ||
3482 disable aligned_stack
3483 fi
3484 elif enabled ccc; then
3485 # disable some annoying warnings
3486 add_cflags -msg_disable cvtu32to64
3487 add_cflags -msg_disable embedcomment
3488 add_cflags -msg_disable needconstext
3489 add_cflags -msg_disable nomainieee
3490 add_cflags -msg_disable ptrmismatch1
3491 add_cflags -msg_disable unreachcode
3492 elif enabled gcc; then
3493 check_cflags -fno-tree-vectorize
3494 check_cflags -Werror=implicit-function-declaration
3495 check_cflags -Werror=missing-prototypes
3496 check_cflags -Werror=declaration-after-statement
3497 elif enabled llvm_gcc; then
3498 check_cflags -mllvm -stack-alignment=16
3499 elif enabled clang; then
3500 check_cflags -mllvm -stack-alignment=16
3501 check_cflags -Qunused-arguments
3502 elif enabled armcc; then
3503 # 2523: use of inline assembler is deprecated
3504 add_cflags -W${armcc_opt},--diag_suppress=2523
3505 add_cflags -W${armcc_opt},--diag_suppress=1207
3506 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3507 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3508 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
3509 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
3510 elif enabled tms470; then
3511 add_cflags -pds=824 -pds=837
3512 elif enabled pathscale; then
3513 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3514 elif enabled msvc; then
3515 enabled x86_32 && disable aligned_stack
3516 fi
3517
3518 enabled_any $THREADS_LIST && enable threads
3519
3520 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3521
3522 check_deps $CONFIG_LIST \
3523 $CONFIG_EXTRA \
3524 $HAVE_LIST \
3525 $ALL_COMPONENTS \
3526 $ALL_TESTS \
3527
3528 ! enabled_any memalign posix_memalign aligned_malloc &&
3529 enabled_any $need_memalign && enable memalign_hack
3530
3531 echo "install prefix $prefix"
3532 echo "source path $source_path"
3533 echo "C compiler $cc"
3534 echo "ARCH $arch ($cpu)"
3535 if test "$build_suffix" != ""; then
3536 echo "build suffix $build_suffix"
3537 fi
3538 if test "$extra_version" != ""; then
3539 echo "version string suffix $extra_version"
3540 fi
3541 echo "big-endian ${bigendian-no}"
3542 echo "runtime cpu detection ${runtime_cpudetect-no}"
3543 if enabled x86; then
3544 echo "${yasmexe} ${yasm-no}"
3545 echo "MMX enabled ${mmx-no}"
3546 echo "MMXEXT enabled ${mmxext-no}"
3547 echo "3DNow! enabled ${amd3dnow-no}"
3548 echo "3DNow! extended enabled ${amd3dnowext-no}"
3549 echo "SSE enabled ${sse-no}"
3550 echo "SSSE3 enabled ${ssse3-no}"
3551 echo "AVX enabled ${avx-no}"
3552 echo "FMA4 enabled ${fma4-no}"
3553 echo "CMOV enabled ${cmov-no}"
3554 echo "CMOV is fast ${fast_cmov-no}"
3555 echo "EBX available ${ebx_available-no}"
3556 echo "EBP available ${ebp_available-no}"
3557 fi
3558 if enabled arm; then
3559 echo "ARMv5TE enabled ${armv5te-no}"
3560 echo "ARMv6 enabled ${armv6-no}"
3561 echo "ARMv6T2 enabled ${armv6t2-no}"
3562 echo "ARM VFP enabled ${armvfp-no}"
3563 echo "NEON enabled ${neon-no}"
3564 fi
3565 if enabled mips; then
3566 echo "MMI enabled ${mmi-no}"
3567 fi
3568 if enabled ppc; then
3569 echo "AltiVec enabled ${altivec-no}"
3570 echo "PPC 4xx optimizations ${ppc4xx-no}"
3571 echo "dcbzl available ${dcbzl-no}"
3572 fi
3573 if enabled sparc; then
3574 echo "VIS enabled ${vis-no}"
3575 fi
3576 echo "debug symbols ${debug-no}"
3577 echo "optimize for size ${small-no}"
3578 echo "optimizations ${optimizations-no}"
3579 echo "static ${static-no}"
3580 echo "shared ${shared-no}"
3581 echo "new filter support ${avfilter-no}"
3582 echo "network support ${network-no}"
3583 echo "threading support ${thread_type-no}"
3584 echo "safe bitstream reader ${safe_bitstream_reader-no}"
3585 echo "SDL support ${sdl-no}"
3586 echo "libdxva2 enabled ${dxva2-no}"
3587 echo "libva enabled ${vaapi-no}"
3588 echo "libvdpau enabled ${vdpau-no}"
3589 echo "AVISynth enabled ${avisynth-no}"
3590 echo "frei0r enabled ${frei0r-no}"
3591 echo "gnutls enabled ${gnutls-no}"
3592 echo "libcdio support ${libcdio-no}"
3593 echo "libdc1394 support ${libdc1394-no}"
3594 echo "libfaac enabled ${libfaac-no}"
3595 echo "libfdk-aac enabled ${libfdk_aac-no}"
3596 echo "libgsm enabled ${libgsm-no}"
3597 echo "libilbc enabled ${libilbc-no}"
3598 echo "libmp3lame enabled ${libmp3lame-no}"
3599 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3600 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3601 echo "libopencv support ${libopencv-no}"
3602 echo "libopenjpeg enabled ${libopenjpeg-no}"
3603 echo "libopus enabled ${libopus-no}"
3604 echo "libpulse enabled ${libpulse-no}"
3605 echo "librtmp enabled ${librtmp-no}"
3606 echo "libschroedinger enabled ${libschroedinger-no}"
3607 echo "libspeex enabled ${libspeex-no}"
3608 echo "libtheora enabled ${libtheora-no}"
3609 echo "libvo-aacenc support ${libvo_aacenc-no}"
3610 echo "libvo-amrwbenc support ${libvo_amrwbenc-no}"
3611 echo "libvorbis enabled ${libvorbis-no}"
3612 echo "libvpx enabled ${libvpx-no}"
3613 echo "libx264 enabled ${libx264-no}"
3614 echo "libxavs enabled ${libxavs-no}"
3615 echo "libxvid enabled ${libxvid-no}"
3616 echo "openssl enabled ${openssl-no}"
3617 echo "zlib enabled ${zlib-no}"
3618 echo "bzlib enabled ${bzlib-no}"
3619 test -n "$random_seed" &&
3620 echo "random seed ${random_seed}"
3621 echo
3622
3623 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3624 echo "Enabled ${type}s:"
3625 eval list=\$$(toupper $type)_LIST
3626 print_enabled '_*' $list | sort | pr -r -3 -t
3627 echo
3628 done
3629
3630 license="LGPL version 2.1 or later"
3631 if enabled nonfree; then
3632 license="nonfree and unredistributable"
3633 elif enabled gplv3; then
3634 license="GPL version 3 or later"
3635 elif enabled lgplv3; then
3636 license="LGPL version 3 or later"
3637 elif enabled gpl; then
3638 license="GPL version 2 or later"
3639 fi
3640
3641 echo "License: $license"
3642
3643 echo "Creating config.mak and config.h..."
3644
3645 test -e Makefile || $ln_s "$source_path/Makefile" .
3646
3647 config_files="$TMPH config.mak"
3648
3649 cat > config.mak <<EOF
3650 # Automatically generated by configure - do not modify!
3651 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3652 prefix=$prefix
3653 LIBDIR=\$(DESTDIR)$libdir
3654 SHLIBDIR=\$(DESTDIR)$shlibdir
3655 INCDIR=\$(DESTDIR)$incdir
3656 BINDIR=\$(DESTDIR)$bindir
3657 DATADIR=\$(DESTDIR)$datadir
3658 MANDIR=\$(DESTDIR)$mandir
3659 SRC_PATH=$source_path
3660 CC_IDENT=$cc_ident
3661 ARCH=$arch
3662 CC=$cc
3663 AS=$as
3664 LD=$ld
3665 DEPCC=$dep_cc
3666 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
3667 DEPAS=$as
3668 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
3669 YASM=$yasmexe
3670 DEPYASM=$yasmexe
3671 AR=$ar
3672 ARFLAGS=$arflags
3673 AR_O=$ar_o
3674 RANLIB=$ranlib
3675 LN_S=$ln_s
3676 CPPFLAGS=$CPPFLAGS
3677 CFLAGS=$CFLAGS
3678 ASFLAGS=$ASFLAGS
3679 AS_C=$AS_C
3680 AS_O=$AS_O
3681 CC_C=$CC_C
3682 CC_O=$CC_O