Mirillis FIC video decoder
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
96
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
104 --disable-all disable building components, libraries and programs
105
106 Program options:
107 --disable-programs do not build command line programs
108 --disable-avconv disable avconv build
109 --disable-avplay disable avplay build
110 --disable-avprobe disable avprobe build
111 --disable-avserver disable avserver build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-avdevice disable libavdevice build
116 --disable-avcodec disable libavcodec build
117 --disable-avformat disable libavformat build
118 --disable-avutil disable libavutil build
119 --disable-swscale disable libswscale build
120 --disable-avfilter disable video filter support [no]
121 --disable-avresample disable libavresample build [no]
122 --disable-pthreads disable pthreads [auto]
123 --disable-w32threads disable Win32 threads [auto]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-error-resilience disable error resilience code
127 --disable-lsp disable LSP code
128 --disable-lzo disable LZO decoder code
129 --disable-mdct disable MDCT code
130 --disable-rdft disable RDFT code
131 --disable-fft disable FFT code
132
133 Hardware accelerators:
134 --enable-dxva2 enable DXVA2 code
135 --enable-vaapi enable VAAPI code
136 --enable-vda enable VDA code
137 --enable-vdpau enable VDPAU code
138
139 Individual component options:
140 --disable-everything disable all components listed below
141 --disable-encoder=NAME disable encoder NAME
142 --enable-encoder=NAME enable encoder NAME
143 --disable-encoders disable all encoders
144 --disable-decoder=NAME disable decoder NAME
145 --enable-decoder=NAME enable decoder NAME
146 --disable-decoders disable all decoders
147 --disable-hwaccel=NAME disable hwaccel NAME
148 --enable-hwaccel=NAME enable hwaccel NAME
149 --disable-hwaccels disable all hwaccels
150 --disable-muxer=NAME disable muxer NAME
151 --enable-muxer=NAME enable muxer NAME
152 --disable-muxers disable all muxers
153 --disable-demuxer=NAME disable demuxer NAME
154 --enable-demuxer=NAME enable demuxer NAME
155 --disable-demuxers disable all demuxers
156 --enable-parser=NAME enable parser NAME
157 --disable-parser=NAME disable parser NAME
158 --disable-parsers disable all parsers
159 --enable-bsf=NAME enable bitstream filter NAME
160 --disable-bsf=NAME disable bitstream filter NAME
161 --disable-bsfs disable all bitstream filters
162 --enable-protocol=NAME enable protocol NAME
163 --disable-protocol=NAME disable protocol NAME
164 --disable-protocols disable all protocols
165 --enable-indev=NAME enable input device NAME
166 --disable-indev=NAME disable input device NAME
167 --disable-indevs disable input devices
168 --enable-outdev=NAME enable output device NAME
169 --disable-outdev=NAME disable output device NAME
170 --disable-outdevs disable output devices
171 --disable-devices disable all devices
172 --enable-filter=NAME enable filter NAME
173 --disable-filter=NAME disable filter NAME
174 --disable-filters disable all filters
175
176 External library support:
177 --enable-avisynth enable reading of AviSynth script files [no]
178 --enable-bzlib enable bzlib [autodetect]
179 --enable-frei0r enable frei0r video filtering
180 --enable-gnutls enable gnutls [no]
181 --enable-libcdio enable audio CD grabbing with libcdio
182 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
183 and libraw1394 [no]
184 --enable-libfaac enable AAC encoding via libfaac [no]
185 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
186 --enable-libfreetype enable libfreetype [no]
187 --enable-libgsm enable GSM de/encoding via libgsm [no]
188 --enable-libilbc enable iLBC de/encoding via libilbc [no]
189 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
190 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192 --enable-libopencv enable video filtering via libopencv [no]
193 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
194 --enable-libopus enable Opus decoding via libopus [no]
195 --enable-libpulse enable Pulseaudio input via libpulse [no]
196 --enable-librtmp enable RTMP[E] support via librtmp [no]
197 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
198 --enable-libspeex enable Speex de/encoding via libspeex [no]
199 --enable-libtheora enable Theora encoding via libtheora [no]
200 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
201 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
202 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
203 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
204 --enable-libwavpack enable wavpack encoding via libwavpack [no]
205 --enable-libwebp enable WebP encoding via libwebp [no]
206 --enable-libx264 enable H.264 encoding via x264 [no]
207 --enable-libxavs enable AVS encoding via xavs [no]
208 --enable-libxvid enable Xvid encoding via xvidcore,
209 native MPEG-4/Xvid encoder exists [no]
210 --enable-openssl enable openssl [no]
211 --enable-x11grab enable X11 grabbing [no]
212 --enable-zlib enable zlib [autodetect]
213
214 Advanced options (experts only):
215 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
216 --enable-cross-compile assume a cross-compiler is used
217 --sysroot=PATH root of cross-build tree
218 --sysinclude=PATH location of cross-build system headers
219 --target-os=OS compiler targets OS [$target_os]
220 --target-exec=CMD command to run executables on target
221 --target-path=DIR path to view of build directory on target
222 --target-samples=DIR path to samples directory on target
223 --toolchain=NAME set tool defaults according to NAME
224 --nm=NM use nm tool
225 --ar=AR use archive tool AR [$ar_default]
226 --as=AS use assembler AS [$as_default]
227 --cc=CC use C compiler CC [$cc_default]
228 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
229 --ld=LD use linker LD
230 --host-cc=HOSTCC use host C compiler HOSTCC
231 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
232 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
233 --host-ld=HOSTLD use host linker HOSTLD
234 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
235 --host-libs=HLIBS use libs HLIBS when linking for host
236 --host-os=OS compiler host OS [$target_os]
237 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
238 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
239 --extra-libs=ELIBS add ELIBS [$ELIBS]
240 --extra-version=STRING version string suffix []
241 --optflags=OPTFLAGS override optimization-related compiler flags
242 --build-suffix=SUFFIX library name suffix []
243 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
244 --arch=ARCH select architecture [$arch]
245 --cpu=CPU select the minimum required CPU (affects
246 instruction selection, may crash on older CPUs)
247 --enable-pic build position-independent code
248 --enable-sram allow use of on-chip SRAM
249 --enable-thumb compile for Thumb instruction set
250 --disable-symver disable symbol versioning
251 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
252 --disable-safe-bitstream-reader
253 disable buffer boundary checking in bitreaders
254 (faster, but may crash)
255 --enable-memalign-hack emulate memalign, interferes with memory debuggers
256 --enable-lto use link-time optimization
257
258 Optimization options (experts only):
259 --disable-asm disable all assembler optimizations
260 --disable-altivec disable AltiVec optimizations
261 --disable-amd3dnow disable 3DNow! optimizations
262 --disable-amd3dnowext disable 3DNow! extended optimizations
263 --disable-mmx disable MMX optimizations
264 --disable-mmxext disable MMXEXT optimizations
265 --disable-sse disable SSE optimizations
266 --disable-sse2 disable SSE2 optimizations
267 --disable-sse3 disable SSE3 optimizations
268 --disable-ssse3 disable SSSE3 optimizations
269 --disable-sse4 disable SSE4 optimizations
270 --disable-sse42 disable SSE4.2 optimizations
271 --disable-avx disable AVX optimizations
272 --disable-fma4 disable FMA4 optimizations
273 --disable-avx2 disable AVX2 optimizations
274 --disable-armv5te disable armv5te optimizations
275 --disable-armv6 disable armv6 optimizations
276 --disable-armv6t2 disable armv6t2 optimizations
277 --disable-vfp disable VFP optimizations
278 --disable-neon disable NEON optimizations
279 --disable-vis disable VIS optimizations
280 --disable-inline-asm disable use of inline assembler
281 --disable-yasm disable use of yasm assembler
282
283 Developer options (useful when working on Libav itself):
284 --disable-debug disable debugging symbols
285 --enable-debug=LEVEL set the debug level [$debuglevel]
286 --disable-optimizations disable compiler optimizations
287 --enable-extra-warnings enable more compiler warnings
288 --samples=PATH location of test samples for FATE, if not set use
289 \$LIBAV_SAMPLES at make invocation time.
290 --enable-neon-clobber-test check NEON registers for clobbering (should be
291 used only for debugging purposes)
292 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
293 should be used only for debugging purposes)
294 --enable-random randomly enable/disable components
295 --disable-random
296 --enable-random=LIST randomly enable/disable specific components or
297 --disable-random=LIST component groups. LIST is a comma-separated list
298 of NAME[:PROB] entries where NAME is a component
299 (group) and PROB the probability associated with
300 NAME (default 0.5).
301 --random-seed=VALUE seed value for --enable/disable-random
302
303 NOTE: Object files are built at the place where configure is launched.
304 EOF
305 exit 0
306 }
307
308 quotes='""'
309
310 log(){
311 echo "$@" >> $logfile
312 }
313
314 log_file(){
315 log BEGIN $1
316 pr -n -t $1 >> $logfile
317 log END $1
318 }
319
320 echolog(){
321 log "$@"
322 echo "$@"
323 }
324
325 warn(){
326 log "WARNING: $*"
327 WARNINGS="${WARNINGS}WARNING: $*\n"
328 }
329
330 die(){
331 echolog "$@"
332 cat <<EOF
333
334 If you think configure made a mistake, make sure you are using the latest
335 version from Git. If the latest version fails, report the problem to the
336 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
337 EOF
338 if disabled logging; then
339 cat <<EOF
340 Rerun configure with logging enabled (do not use --disable-logging), and
341 include the log this produces with your report.
342 EOF
343 else
344 cat <<EOF
345 Include the log file "$logfile" produced by configure as this will help
346 solving the problem.
347 EOF
348 fi
349 exit 1
350 }
351
352 # Avoid locale weirdness, besides we really just want to translate ASCII.
353 toupper(){
354 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
355 }
356
357 tolower(){
358 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
359 }
360
361 c_escape(){
362 echo "$*" | sed 's/["\\]/\\\0/g'
363 }
364
365 sh_quote(){
366 v=$(echo "$1" | sed "s/'/'\\\\''/g")
367 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
368 echo "$v"
369 }
370
371 cleanws(){
372 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
373 }
374
375 filter(){
376 pat=$1
377 shift
378 for v; do
379 eval "case $v in $pat) echo $v ;; esac"
380 done
381 }
382
383 filter_out(){
384 pat=$1
385 shift
386 for v; do
387 eval "case $v in $pat) ;; *) echo $v ;; esac"
388 done
389 }
390
391 map(){
392 m=$1
393 shift
394 for v; do eval $m; done
395 }
396
397 add_suffix(){
398 suffix=$1
399 shift
400 for v; do echo ${v}${suffix}; done
401 }
402
403 set_all(){
404 value=$1
405 shift
406 for var in $*; do
407 eval $var=$value
408 done
409 }
410
411 set_weak(){
412 value=$1
413 shift
414 for var; do
415 eval : \${$var:=$value}
416 done
417 }
418
419 sanitize_var_name(){
420 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
421 }
422
423 set_safe(){
424 var=$1
425 shift
426 eval $(sanitize_var_name "$var")='$*'
427 }
428
429 get_safe(){
430 eval echo \$$(sanitize_var_name "$1")
431 }
432
433 pushvar(){
434 for pvar in $*; do
435 eval level=\${${pvar}_level:=0}
436 eval ${pvar}_${level}="\$$pvar"
437 eval ${pvar}_level=$(($level+1))
438 done
439 }
440
441 popvar(){
442 for pvar in $*; do
443 eval level=\${${pvar}_level:-0}
444 test $level = 0 && continue
445 eval level=$(($level-1))
446 eval $pvar="\${${pvar}_${level}}"
447 eval ${pvar}_level=$level
448 eval unset ${pvar}_${level}
449 done
450 }
451
452 enable(){
453 set_all yes $*
454 }
455
456 disable(){
457 set_all no $*
458 }
459
460 enable_weak(){
461 set_weak yes $*
462 }
463
464 disable_weak(){
465 set_weak no $*
466 }
467
468 enable_safe(){
469 for var; do
470 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
471 done
472 }
473
474 disable_safe(){
475 for var; do
476 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
477 done
478 }
479
480 do_enable_deep(){
481 for var; do
482 enabled $var && continue
483 eval sel="\$${var}_select"
484 eval sgs="\$${var}_suggest"
485 pushvar var sgs
486 enable_deep $sel
487 popvar sgs
488 enable_deep_weak $sgs
489 popvar var
490 done
491 }
492
493 enable_deep(){
494 do_enable_deep $*
495 enable $*
496 }
497
498 enable_deep_weak(){
499 for var; do
500 disabled $var && continue
501 pushvar var
502 do_enable_deep $var
503 popvar var
504 enable_weak $var
505 done
506 }
507
508 enabled(){
509 test "${1#!}" = "$1" && op== || op=!=
510 eval test "x\$${1#!}" $op "xyes"
511 }
512
513 disabled(){
514 test "${1#!}" = "$1" && op== || op=!=
515 eval test "x\$${1#!}" $op "xno"
516 }
517
518 enabled_all(){
519 for opt; do
520 enabled $opt || return 1
521 done
522 }
523
524 disabled_all(){
525 for opt; do
526 disabled $opt || return 1
527 done
528 }
529
530 enabled_any(){
531 for opt; do
532 enabled $opt && return 0
533 done
534 }
535
536 disabled_any(){
537 for opt; do
538 disabled $opt && return 0
539 done
540 return 1
541 }
542
543 set_default(){
544 for opt; do
545 eval : \${$opt:=\$${opt}_default}
546 done
547 }
548
549 is_in(){
550 value=$1
551 shift
552 for var in $*; do
553 [ $var = $value ] && return 0
554 done
555 return 1
556 }
557
558 do_check_deps(){
559 for cfg; do
560 cfg="${cfg#!}"
561 enabled ${cfg}_checking && die "Circular dependency for $cfg."
562 disabled ${cfg}_checking && continue
563 enable ${cfg}_checking
564 append allopts $cfg
565
566 eval dep_all="\$${cfg}_deps"
567 eval dep_any="\$${cfg}_deps_any"
568 eval dep_sel="\$${cfg}_select"
569 eval dep_sgs="\$${cfg}_suggest"
570 eval dep_ifa="\$${cfg}_if"
571 eval dep_ifn="\$${cfg}_if_any"
572
573 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
574 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
575 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
576
577 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
578 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
579 enabled_all $dep_all || disable $cfg
580 enabled_any $dep_any || disable $cfg
581 disabled_any $dep_sel && disable $cfg
582
583 if enabled $cfg; then
584 enable_deep $dep_sel
585 enable_deep_weak $dep_sgs
586 fi
587
588 disable ${cfg}_checking
589 done
590 }
591
592 check_deps(){
593 unset allopts
594
595 do_check_deps "$@"
596
597 for cfg in $allopts; do
598 enabled $cfg || continue
599 eval dep_extralibs="\$${cfg}_extralibs"
600 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
601 done
602 }
603
604 print_config(){
605 pfx=$1
606 files=$2
607 shift 2
608 map 'eval echo "$v \${$v:-no}"' "$@" |
609 awk "BEGIN { split(\"$files\", files) }
610 {
611 c = \"$pfx\" toupper(\$1);
612 v = \$2;
613 sub(/yes/, 1, v);
614 sub(/no/, 0, v);
615 for (f in files) {
616 file = files[f];
617 if (file ~ /\\.h\$/) {
618 printf(\"#define %s %d\\n\", c, v) >>file;
619 } else if (file ~ /\\.asm\$/) {
620 printf(\"%%define %s %d\\n\", c, v) >>file;
621 } else if (file ~ /\\.mak\$/) {
622 n = -v ? \"\" : \"!\";
623 printf(\"%s%s=yes\\n\", n, c) >>file;
624 }
625 }
626 }"
627 }
628
629 print_enabled(){
630 suf=$1
631 shift
632 for v; do
633 enabled $v && printf "%s\n" ${v%$suf};
634 done
635 }
636
637 append(){
638 var=$1
639 shift
640 eval "$var=\"\$$var $*\""
641 }
642
643 prepend(){
644 var=$1
645 shift
646 eval "$var=\"$* \$$var\""
647 }
648
649 add_cppflags(){
650 append CPPFLAGS "$@"
651 }
652
653 add_cflags(){
654 append CFLAGS $($cflags_filter "$@")
655 }
656
657 add_asflags(){
658 append ASFLAGS $($asflags_filter "$@")
659 }
660
661 add_ldflags(){
662 append LDFLAGS $($ldflags_filter "$@")
663 }
664
665 add_stripflags(){
666 append STRIPFLAGS "$@"
667 }
668
669 add_extralibs(){
670 prepend extralibs $($ldflags_filter "$@")
671 }
672
673 add_host_cppflags(){
674 append host_cppflags "$@"
675 }
676
677 add_host_cflags(){
678 append host_cflags $($host_cflags_filter "$@")
679 }
680
681 add_host_ldflags(){
682 append host_ldflags $($host_ldflags_filter "$@")
683 }
684
685 add_compat(){
686 append compat_objs $1
687 shift
688 map 'add_cppflags -D$v' "$@"
689 }
690
691 check_cmd(){
692 log "$@"
693 "$@" >> $logfile 2>&1
694 }
695
696 cc_o(){
697 eval printf '%s\\n' $CC_O
698 }
699
700 cc_e(){
701 eval printf '%s\\n' $CC_E
702 }
703
704 check_cc(){
705 log check_cc "$@"
706 cat > $TMPC
707 log_file $TMPC
708 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
709 }
710
711 check_cpp(){
712 log check_cpp "$@"
713 cat > $TMPC
714 log_file $TMPC
715 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
716 }
717
718 as_o(){
719 eval printf '%s\\n' $AS_O
720 }
721
722 check_as(){
723 log check_as "$@"
724 cat > $TMPS
725 log_file $TMPS
726 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
727 }
728
729 check_inline_asm(){
730 log check_inline_asm "$@"
731 name="$1"
732 code="$2"
733 shift 2
734 disable $name
735 check_cc "$@" <<EOF && enable $name
736 void foo(void){ __asm__ volatile($code); }
737 EOF
738 }
739
740 check_insn(){
741 log check_insn "$@"
742 check_inline_asm ${1}_inline "\"$2\""
743 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
744 }
745
746 check_yasm(){
747 log check_yasm "$@"
748 echo "$1" > $TMPS
749 log_file $TMPS
750 shift 1
751 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
752 }
753
754 ld_o(){
755 eval printf '%s\\n' $LD_O
756 }
757
758 check_ld(){
759 log check_ld "$@"
760 flags=$(filter_out '-l*' "$@")
761 libs=$(filter '-l*' "$@")
762 check_cc $($cflags_filter $flags) || return
763 flags=$($ldflags_filter $flags)
764 libs=$($ldflags_filter $libs)
765 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
766 }
767
768 print_include(){
769 hdr=$1
770 test "${hdr%.h}" = "${hdr}" &&
771 echo "#include $hdr" ||
772 echo "#include <$hdr>"
773 }
774
775 check_code(){
776 log check_code "$@"
777 check=$1
778 headers=$2
779 code=$3
780 shift 3
781 {
782 for hdr in $headers; do
783 print_include $hdr
784 done
785 echo "int main(void) { $code; return 0; }"
786 } | check_$check "$@"
787 }
788
789 check_cppflags(){
790 log check_cppflags "$@"
791 check_cc "$@" <<EOF && append CPPFLAGS "$@"
792 int x;
793 EOF
794 }
795
796 test_cflags(){
797 log test_cflags "$@"
798 set -- $($cflags_filter "$@")
799 check_cc "$@" <<EOF
800 int x;
801 EOF
802 }
803
804 check_cflags(){
805 log check_cflags "$@"
806 test_cflags "$@" && add_cflags "$@"
807 }
808
809 test_ldflags(){
810 log test_ldflags "$@"
811 check_ld "$@" <<EOF
812 int main(void){ return 0; }
813 EOF
814 }
815
816 check_ldflags(){
817 log check_ldflags "$@"
818 test_ldflags "$@" && add_ldflags "$@"
819 }
820
821 test_stripflags(){
822 log test_stripflags "$@"
823 # call check_cc to get a fresh TMPO
824 check_cc <<EOF
825 int main(void) { return 0; }
826 EOF
827 check_cmd $strip $STRIPFLAGS "$@" $TMPO
828 }
829
830 check_stripflags(){
831 log check_stripflags "$@"
832 test_stripflags "$@" && add_stripflags "$@"
833 }
834
835 check_header(){
836 log check_header "$@"
837 header=$1
838 shift
839 disable_safe $header
840 check_cpp "$@" <<EOF && enable_safe $header
841 #include <$header>
842 int x;
843 EOF
844 }
845
846 check_func(){
847 log check_func "$@"
848 func=$1
849 shift
850 disable $func
851 check_ld "$@" <<EOF && enable $func
852 extern int $func();
853 int main(void){ $func(); }
854 EOF
855 }
856
857 check_mathfunc(){
858 log check_mathfunc "$@"
859 func=$1
860 narg=$2
861 shift 2
862 test $narg = 2 && args="f, g" || args="f"
863 disable $func
864 check_ld "$@" <<EOF && enable $func
865 #include <math.h>
866 float foo(float f, float g) { return $func($args); }
867 int main(void){ return 0; }
868 EOF
869 }
870
871 check_func_headers(){
872 log check_func_headers "$@"
873 headers=$1
874 funcs=$2
875 shift 2
876 {
877 for hdr in $headers; do
878 print_include $hdr
879 done
880 for func in $funcs; do
881 echo "long check_$func(void) { return (long) $func; }"
882 done
883 echo "int main(void) { return 0; }"
884 } | check_ld "$@" && enable $funcs && enable_safe $headers
885 }
886
887 check_cpp_condition(){
888 log check_cpp_condition "$@"
889 header=$1
890 condition=$2
891 shift 2
892 check_cpp "$@" <<EOF
893 #include <$header>
894 #if !($condition)
895 #error "unsatisfied condition: $condition"
896 #endif
897 EOF
898 }
899
900 check_lib(){
901 log check_lib "$@"
902 header="$1"
903 func="$2"
904 shift 2
905 check_header $header && check_func $func "$@" && add_extralibs "$@"
906 }
907
908 check_lib2(){
909 log check_lib2 "$@"
910 headers="$1"
911 funcs="$2"
912 shift 2
913 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
914 }
915
916 check_pkg_config(){
917 log check_pkg_config "$@"
918 pkg="$1"
919 headers="$2"
920 funcs="$3"
921 shift 3
922 check_cmd $pkg_config --exists --print-errors $pkg || return
923 pkg_cflags=$($pkg_config --cflags $pkg)
924 pkg_libs=$($pkg_config --libs $pkg)
925 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
926 set_safe ${pkg}_cflags $pkg_cflags &&
927 set_safe ${pkg}_libs $pkg_libs
928 }
929
930 check_exec(){
931 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
932 }
933
934 check_exec_crash(){
935 code=$(cat)
936
937 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
938 # are safe but may not be available everywhere. Thus we use
939 # raise(SIGTERM) instead. The check is run in a subshell so we
940 # can redirect the "Terminated" message from the shell. SIGBUS
941 # is not defined by standard C so it is used conditionally.
942
943 (check_exec "$@") >> $logfile 2>&1 <<EOF
944 #include <signal.h>
945 static void sighandler(int sig){
946 raise(SIGTERM);
947 }
948 int foo(void){
949 $code
950 }
951 int (*func_ptr)(void) = foo;
952 int main(void){
953 signal(SIGILL, sighandler);
954 signal(SIGFPE, sighandler);
955 signal(SIGSEGV, sighandler);
956 #ifdef SIGBUS
957 signal(SIGBUS, sighandler);
958 #endif
959 return func_ptr();
960 }
961 EOF
962 }
963
964 check_type(){
965 log check_type "$@"
966 headers=$1
967 type=$2
968 shift 2
969 disable_safe "$type"
970 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
971 }
972
973 check_struct(){
974 log check_struct "$@"
975 headers=$1
976 struct=$2
977 member=$3
978 shift 3
979 disable_safe "${struct}_${member}"
980 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
981 enable_safe "${struct}_${member}"
982 }
983
984 check_builtin(){
985 log check_builtin "$@"
986 name=$1
987 headers=$2
988 builtin=$3
989 shift 3
990 disable "$name"
991 check_code ld "$headers" "$builtin" "$@" && enable "$name"
992 }
993
994 require(){
995 name="$1"
996 header="$2"
997 func="$3"
998 shift 3
999 check_lib $header $func "$@" || die "ERROR: $name not found"
1000 }
1001
1002 require2(){
1003 name="$1"
1004 headers="$2"
1005 func="$3"
1006 shift 3
1007 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1008 }
1009
1010 require_pkg_config(){
1011 pkg="$1"
1012 check_pkg_config "$@" || die "ERROR: $pkg not found"
1013 add_cflags $(get_safe ${pkg}_cflags)
1014 add_extralibs $(get_safe ${pkg}_libs)
1015 }
1016
1017 hostcc_e(){
1018 eval printf '%s\\n' $HOSTCC_E
1019 }
1020
1021 hostcc_o(){
1022 eval printf '%s\\n' $HOSTCC_O
1023 }
1024
1025 check_host_cc(){
1026 log check_host_cc "$@"
1027 cat > $TMPC
1028 log_file $TMPC
1029 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1030 }
1031
1032 check_host_cpp(){
1033 log check_host_cpp "$@"
1034 cat > $TMPC
1035 log_file $TMPC
1036 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1037 }
1038
1039 check_host_cppflags(){
1040 log check_host_cppflags "$@"
1041 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1042 int x;
1043 EOF
1044 }
1045
1046 check_host_cflags(){
1047 log check_host_cflags "$@"
1048 set -- $($host_cflags_filter "$@")
1049 check_host_cc "$@" <<EOF && append host_cflags "$@"
1050 int x;
1051 EOF
1052 }
1053
1054 check_host_cpp_condition(){
1055 log check_host_cpp_condition "$@"
1056 header=$1
1057 condition=$2
1058 shift 2
1059 check_host_cpp "$@" <<EOF
1060 #include <$header>
1061 #if !($condition)
1062 #error "unsatisfied condition: $condition"
1063 #endif
1064 EOF
1065 }
1066
1067 apply(){
1068 file=$1
1069 shift
1070 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1071 }
1072
1073 cp_if_changed(){
1074 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1075 mkdir -p "$(dirname $2)"
1076 $cp_f "$1" "$2"
1077 }
1078
1079 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1080 # system-dependent things.
1081
1082 COMPONENT_LIST="
1083 bsfs
1084 decoders
1085 demuxers
1086 encoders
1087 filters
1088 hwaccels
1089 indevs
1090 muxers
1091 outdevs
1092 parsers
1093 protocols
1094 "
1095
1096 EXAMPLE_LIST="
1097 output_example
1098 transcode_aac_example
1099 "
1100
1101 EXTERNAL_LIBRARY_LIST="
1102 avisynth
1103 bzlib
1104 frei0r
1105 gnutls
1106 libcdio
1107 libdc1394
1108 libfaac
1109 libfdk_aac
1110 libfreetype
1111 libgsm
1112 libilbc
1113 libmp3lame
1114 libopencore_amrnb
1115 libopencore_amrwb
1116 libopencv
1117 libopenjpeg
1118 libopus
1119 libpulse
1120 librtmp
1121 libschroedinger
1122 libspeex
1123 libtheora
1124 libvo_aacenc
1125 libvo_amrwbenc
1126 libvorbis
1127 libvpx
1128 libwavpack
1129 libwebp
1130 libx264
1131 libxavs
1132 libxvid
1133 openssl
1134 x11grab
1135 zlib
1136 "
1137
1138 HWACCEL_LIST="
1139 dxva2
1140 vaapi
1141 vda
1142 vdpau
1143 "
1144 LIBRARY_LIST="
1145 avcodec
1146 avdevice
1147 avfilter
1148 avformat
1149 avresample
1150 avutil
1151 swscale
1152 "
1153
1154 PROGRAM_LIST="
1155 avconv
1156 avplay
1157 avprobe
1158 avserver
1159 "
1160
1161 CONFIG_LIST="
1162 $COMPONENT_LIST
1163 $EXAMPLE_LIST
1164 $EXTERNAL_LIBRARY_LIST
1165 $HWACCEL_LIST
1166 $LIBRARY_LIST
1167 $PROGRAM_LIST
1168 dct
1169 doc
1170 error_resilience
1171 fft
1172 gpl
1173 gray
1174 hardcoded_tables
1175 lsp
1176 lzo
1177 mdct
1178 memalign_hack
1179 neon_clobber_test
1180 network
1181 nonfree
1182 pod2man
1183 pic
1184 rdft
1185 runtime_cpudetect
1186 safe_bitstream_reader
1187 shared
1188 small
1189 sram
1190 static
1191 swscale_alpha
1192 texi2html
1193 thumb
1194 version3
1195 xmm_clobber_test
1196 "
1197
1198 THREADS_LIST='
1199 pthreads
1200 w32threads
1201 '
1202
1203 ATOMICS_LIST='
1204 atomics_gcc
1205 atomics_suncc
1206 atomics_win32
1207 '
1208
1209 ARCH_LIST='
1210 aarch64
1211 alpha
1212 arm
1213 avr32
1214 avr32_ap
1215 avr32_uc
1216 bfin
1217 ia64
1218 m68k
1219 mips
1220 mips64
1221 parisc
1222 ppc
1223 ppc64
1224 s390
1225 sh4
1226 sparc
1227 sparc64
1228 tilegx
1229 tilepro
1230 tomi
1231 x86
1232 x86_32
1233 x86_64
1234 '
1235
1236 ARCH_EXT_LIST_ARM='
1237 armv5te
1238 armv6
1239 armv6t2
1240 neon
1241 vfp
1242 vfpv3
1243 '
1244
1245 ARCH_EXT_LIST_X86='
1246 amd3dnow
1247 amd3dnowext
1248 avx
1249 avx2
1250 fma4
1251 i686
1252 mmx
1253 mmxext
1254 sse
1255 sse2
1256 sse3
1257 sse4
1258 sse42
1259 ssse3
1260 '
1261
1262 ARCH_EXT_LIST="
1263 $ARCH_EXT_LIST_ARM
1264 $ARCH_EXT_LIST_X86
1265 altivec
1266 ppc4xx
1267 vis
1268 "
1269
1270 HAVE_LIST_CMDLINE='
1271 inline_asm
1272 symver
1273 yasm
1274 '
1275
1276 HAVE_LIST_PUB='
1277 bigendian
1278 fast_unaligned
1279 '
1280
1281 MATH_FUNCS="
1282 atanf
1283 atan2f
1284 cbrtf
1285 cosf
1286 exp2
1287 exp2f
1288 expf
1289 isinf
1290 isnan
1291 ldexpf
1292 llrint
1293 llrintf
1294 log2
1295 log2f
1296 log10f
1297 lrint
1298 lrintf
1299 powf
1300 rint
1301 round
1302 roundf
1303 sinf
1304 trunc
1305 truncf
1306 "
1307
1308 HAVE_LIST="
1309 $ARCH_EXT_LIST
1310 $(add_suffix _external $ARCH_EXT_LIST)
1311 $(add_suffix _inline $ARCH_EXT_LIST)
1312 $HAVE_LIST_CMDLINE
1313 $HAVE_LIST_PUB
1314 $THREADS_LIST
1315 $ATOMICS_LIST
1316 $MATH_FUNCS
1317 aligned_malloc
1318 aligned_stack
1319 alsa_asoundlib_h
1320 altivec_h
1321 arpa_inet_h
1322 asm_mod_q
1323 asm_mod_y
1324 atomic_cas_ptr
1325 atomics_native
1326 attribute_may_alias
1327 attribute_packed
1328 cdio_paranoia_h
1329 cdio_paranoia_paranoia_h
1330 closesocket
1331 CommandLineToArgvW
1332 cpunop
1333 CryptGenRandom
1334 dcbzl
1335 dev_bktr_ioctl_bt848_h
1336 dev_bktr_ioctl_meteor_h
1337 dev_ic_bt8xx_h
1338 dev_video_bktr_ioctl_bt848_h
1339 dev_video_meteor_ioctl_meteor_h
1340 direct_h
1341 dlfcn_h
1342 dlopen
1343 dos_paths
1344 dxva_h
1345 ebp_available
1346 ebx_available
1347 fast_64bit
1348 fast_clz
1349 fast_cmov
1350 fcntl
1351 fork
1352 getaddrinfo
1353 gethrtime
1354 getopt
1355 GetProcessAffinityMask
1356 GetProcessMemoryInfo
1357 GetProcessTimes
1358 GetSystemTimeAsFileTime
1359 getrusage
1360 getservbyport
1361 gettimeofday
1362 gnu_as
1363 gsm_h
1364 ibm_asm
1365 inet_aton
1366 io_h
1367 inline_asm_labels
1368 isatty
1369 jack_port_get_latency_range
1370 ldbrx
1371 libc_msvcrt
1372 libdc1394_1
1373 libdc1394_2
1374 local_aligned_16
1375 local_aligned_8
1376 localtime_r
1377 loongson
1378 machine_ioctl_bt848_h
1379 machine_ioctl_meteor_h
1380 machine_rw_barrier
1381 malloc_h
1382 MapViewOfFile
1383 memalign
1384 MemoryBarrier
1385 mkstemp
1386 mm_empty
1387 mmap
1388 mprotect
1389 nanosleep
1390 poll_h
1391 posix_memalign
1392 pragma_deprecated
1393 rdtsc
1394 sched_getaffinity
1395 sdl
1396 SetConsoleTextAttribute
1397 setmode
1398 setrlimit
1399 Sleep
1400 sndio_h
1401 socklen_t
1402 soundcard_h
1403 strerror_r
1404 strptime
1405 strtok_r
1406 struct_addrinfo
1407 struct_group_source_req
1408 struct_ip_mreq_source
1409 struct_ipv6_mreq
1410 struct_pollfd
1411 struct_rusage_ru_maxrss
1412 struct_sockaddr_in6
1413 struct_sockaddr_sa_len
1414 struct_sockaddr_storage
1415 struct_v4l2_frmivalenum_discrete
1416 symver_asm_label
1417 symver_gnu_asm
1418 sync_val_compare_and_swap
1419 sysconf
1420 sysctl
1421 sys_mman_h
1422 sys_param_h
1423 sys_resource_h
1424 sys_select_h
1425 sys_soundcard_h
1426 sys_time_h
1427 sys_un_h
1428 sys_videoio_h
1429 threads
1430 unistd_h
1431 usleep
1432 vdpau_x11
1433 vfp_args
1434 VirtualAlloc
1435 windows_h
1436 winsock2_h
1437 xform_asm
1438 xlib
1439 xmm_clobbers
1440 "
1441
1442 # options emitted with CONFIG_ prefix but not available on the command line
1443 CONFIG_EXTRA="
1444 aandcttables
1445 ac3dsp
1446 audio_frame_queue
1447 dsputil
1448 gcrypt
1449 golomb
1450 gplv3
1451 h263dsp
1452 h264chroma
1453 h264dsp
1454 h264pred
1455 h264qpel
1456 hpeldsp
1457 huffman
1458 intrax8
1459 lgplv3
1460 lpc
1461 mpegaudio
1462 mpegaudiodsp
1463 mpegvideo
1464 mpegvideoenc
1465 nettle
1466 rangecoder
1467 riffdec
1468 riffenc
1469 rtpdec
1470 rtpenc_chain
1471 sinewin
1472 videodsp
1473 vp3dsp
1474 "
1475
1476 CMDLINE_SELECT="
1477 $ARCH_EXT_LIST
1478 $CONFIG_LIST
1479 $HAVE_LIST_CMDLINE
1480 $THREADS_LIST
1481 asm
1482 cross_compile
1483 debug
1484 extra_warnings
1485 logging
1486 lto
1487 optimizations
1488 "
1489
1490 PATHS_LIST='
1491 bindir
1492 datadir
1493 docdir
1494 incdir
1495 libdir
1496 mandir
1497 prefix
1498 shlibdir
1499 '
1500
1501 CMDLINE_SET="
1502 $PATHS_LIST
1503 ar
1504 arch
1505 as
1506 build_suffix
1507 cc
1508 cpu
1509 cross_prefix
1510 dep_cc
1511 extra_version
1512 host_cc
1513 host_cflags
1514 host_ld
1515 host_ldflags
1516 host_libs
1517 host_os
1518 ld
1519 logfile
1520 malloc_prefix
1521 nm
1522 optflags
1523 pkg_config
1524 random_seed
1525 samples
1526 sysinclude
1527 sysroot
1528 target_exec
1529 target_os
1530 target_path
1531 target_samples
1532 toolchain
1533 "
1534
1535 CMDLINE_APPEND="
1536 extra_cflags
1537 host_cppflags
1538 "
1539
1540 # code dependency declarations
1541
1542 # architecture extensions
1543
1544 armv5te_deps="arm"
1545 armv6_deps="arm"
1546 armv6t2_deps="arm"
1547 neon_deps_any="aarch64 arm"
1548 vfp_deps_any="aarch64 arm"
1549 vfpv3_deps="vfp"
1550
1551 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1552
1553 altivec_deps="ppc"
1554 ppc4xx_deps="ppc"
1555
1556 vis_deps="sparc"
1557
1558 cpunop_deps="i686"
1559 x86_64_select="i686"
1560 x86_64_suggest="fast_cmov"
1561
1562 amd3dnow_deps="mmx"
1563 amd3dnowext_deps="amd3dnow"
1564 i686_deps="x86"
1565 mmx_deps="x86"
1566 mmxext_deps="mmx"
1567 sse_deps="mmxext"
1568 sse2_deps="sse"
1569 sse3_deps="sse2"
1570 ssse3_deps="sse3"
1571 sse4_deps="ssse3"
1572 sse42_deps="sse4"
1573 avx_deps="sse42"
1574 fma4_deps="avx"
1575 avx2_deps="avx"
1576
1577 mmx_external_deps="yasm"
1578 mmx_inline_deps="inline_asm"
1579 mmx_suggest="mmx_external mmx_inline"
1580
1581 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1582 eval dep=\$${ext}_deps
1583 eval ${ext}_external_deps='"${dep}_external"'
1584 eval ${ext}_inline_deps='"${dep}_inline"'
1585 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1586 done
1587
1588 aligned_stack_if_any="aarch64 ppc x86"
1589 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1590 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1591 fast_unaligned_if_any="aarch64 ppc x86"
1592
1593 need_memalign="altivec neon sse"
1594
1595 # system capabilities
1596 log2_deps="!libc_msvcrt"
1597
1598 symver_if_any="symver_asm_label symver_gnu_asm"
1599
1600 # threading support
1601 atomics_gcc_if="sync_val_compare_and_swap"
1602 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1603 atomics_win32_if="MemoryBarrier"
1604 atomics_native_if_any="$ATOMICS_LIST"
1605 threads_if_any="$THREADS_LIST"
1606
1607 # subsystems
1608 dct_select="rdft"
1609 error_resilience_select="dsputil"
1610 lpc_select="dsputil"
1611 mdct_select="fft"
1612 rdft_select="fft"
1613 mpegaudio_select="mpegaudiodsp"
1614 mpegaudiodsp_select="dct"
1615 mpegvideo_select="dsputil hpeldsp videodsp"
1616 mpegvideoenc_select="mpegvideo"
1617
1618 # decoders / encoders
1619 aac_decoder_select="mdct sinewin"
1620 aac_encoder_select="audio_frame_queue mdct sinewin"
1621 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1622 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1623 ac3_encoder_select="mdct ac3dsp dsputil"
1624 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1625 aic_decoder_select="dsputil golomb"
1626 alac_encoder_select="lpc"
1627 als_decoder_select="dsputil"
1628 amrnb_decoder_select="lsp"
1629 amrwb_decoder_select="lsp"
1630 amv_decoder_select="dsputil hpeldsp"
1631 ape_decoder_select="dsputil"
1632 asv1_decoder_select="dsputil"
1633 asv1_encoder_select="dsputil"
1634 asv2_decoder_select="dsputil"
1635 asv2_encoder_select="dsputil"
1636 atrac1_decoder_select="mdct sinewin"
1637 atrac3_decoder_select="mdct"
1638 atrac3p_decoder_select="mdct sinewin"
1639 bink_decoder_select="dsputil hpeldsp"
1640 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1641 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1642 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1643 cllc_decoder_select="dsputil"
1644 comfortnoise_encoder_select="lpc"
1645 cook_decoder_select="dsputil mdct sinewin"
1646 cscd_decoder_select="lzo"
1647 cscd_decoder_suggest="zlib"
1648 dca_decoder_select="mdct"
1649 dnxhd_decoder_select="dsputil"
1650 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1651 dvvideo_decoder_select="dsputil"
1652 dvvideo_encoder_select="dsputil"
1653 dxa_decoder_deps="zlib"
1654 eac3_decoder_select="ac3_decoder"
1655 eac3_encoder_select="ac3_encoder"
1656 eamad_decoder_select="aandcttables dsputil mpegvideo"
1657 eatgq_decoder_select="aandcttables dsputil"
1658 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1659 ffv1_decoder_select="dsputil golomb rangecoder"
1660 ffv1_encoder_select="dsputil rangecoder"
1661 ffvhuff_decoder_select="dsputil"
1662 ffvhuff_encoder_select="dsputil huffman"
1663 fic_decoder_select="dsputil golomb"
1664 flac_decoder_select="golomb"
1665 flac_encoder_select="dsputil golomb lpc"
1666 flashsv_decoder_deps="zlib"
1667 flashsv_encoder_deps="zlib"
1668 flashsv2_decoder_deps="zlib"
1669 flv_decoder_select="h263_decoder"
1670 flv_encoder_select="h263_encoder"
1671 fourxm_decoder_select="dsputil"
1672 fraps_decoder_select="dsputil huffman"
1673 g2m_decoder_deps="zlib"
1674 g2m_decoder_select="dsputil"
1675 h261_decoder_select="error_resilience mpegvideo"
1676 h261_encoder_select="aandcttables mpegvideoenc"
1677 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1678 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1679 h263i_decoder_select="h263_decoder"
1680 h263p_encoder_select="h263_encoder"
1681 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1682 h264_decoder_suggest="error_resilience"
1683 hevc_decoder_select="dsputil golomb videodsp"
1684 huffyuv_decoder_select="dsputil"
1685 huffyuv_encoder_select="dsputil huffman"
1686 iac_decoder_select="dsputil fft mdct sinewin"
1687 imc_decoder_select="dsputil fft mdct sinewin"
1688 indeo3_decoder_select="hpeldsp"
1689 interplay_video_decoder_select="hpeldsp"
1690 jpegls_decoder_select="dsputil golomb hpeldsp"
1691 jpegls_encoder_select="golomb"
1692 jv_decoder_select="dsputil"
1693 lagarith_decoder_select="dsputil"
1694 ljpeg_encoder_select="aandcttables mpegvideoenc"
1695 loco_decoder_select="golomb"
1696 mdec_decoder_select="dsputil error_resilience mpegvideo"
1697 metasound_decoder_select="lsp mdct sinewin"
1698 mimic_decoder_select="dsputil hpeldsp"
1699 mjpeg_decoder_select="dsputil hpeldsp"
1700 mjpegb_decoder_select="dsputil hpeldsp"
1701 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1702 mlp_decoder_select="dsputil mlp_parser"
1703 motionpixels_decoder_select="dsputil"
1704 mp1_decoder_select="mpegaudio"
1705 mp1float_decoder_select="mpegaudio"
1706 mp2_decoder_select="mpegaudio"
1707 mp2float_decoder_select="mpegaudio"
1708 mp3_decoder_select="mpegaudio"
1709 mp3adu_decoder_select="mpegaudio"
1710 mp3adufloat_decoder_select="mpegaudio"
1711 mp3float_decoder_select="mpegaudio"
1712 mp3on4_decoder_select="mpegaudio"
1713 mp3on4float_decoder_select="mpegaudio"
1714 mpc7_decoder_select="dsputil mpegaudiodsp"
1715 mpc8_decoder_select="dsputil mpegaudiodsp"
1716 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1717 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1718 mpeg1video_decoder_select="error_resilience mpegvideo"
1719 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1720 mpeg2video_decoder_select="error_resilience mpegvideo"
1721 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1722 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1723 mpeg4_encoder_select="h263_encoder"
1724 msmpeg4v1_decoder_select="h263_decoder"
1725 msmpeg4v2_decoder_select="h263_decoder"
1726 msmpeg4v2_encoder_select="h263_encoder"
1727 msmpeg4v3_decoder_select="h263_decoder"
1728 msmpeg4v3_encoder_select="h263_encoder"
1729 mss2_decoder_select="error_resilience vc1_decoder"
1730 mxpeg_decoder_select="dsputil hpeldsp"
1731 nellymoser_decoder_select="mdct sinewin"
1732 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1733 nuv_decoder_select="dsputil lzo"
1734 png_decoder_deps="zlib"
1735 png_decoder_select="dsputil"
1736 png_encoder_deps="zlib"
1737 png_encoder_select="dsputil"
1738 prores_decoder_select="dsputil"
1739 prores_encoder_select="dsputil"
1740 qcelp_decoder_select="lsp"
1741 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1742 ra_144_encoder_select="audio_frame_queue lpc"
1743 ralf_decoder_select="golomb"
1744 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1745 rv10_encoder_select="h263_encoder"
1746 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1747 rv20_encoder_select="h263_encoder"
1748 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1749 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1750 shorten_decoder_select="golomb"
1751 sipr_decoder_select="lsp"
1752 sp5x_decoder_select="dsputil hpeldsp"
1753 svq1_decoder_select="hpeldsp"
1754 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1755 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1756 svq3_decoder_suggest="error_resilience zlib"
1757 tak_decoder_select="dsputil"
1758 theora_decoder_select="vp3_decoder"
1759 tiff_decoder_suggest="zlib"
1760 tiff_encoder_suggest="zlib"
1761 thp_decoder_select="dsputil hpeldsp"
1762 truehd_decoder_select="mlp_decoder"
1763 truemotion2_decoder_select="dsputil"
1764 truespeech_decoder_select="dsputil"
1765 tscc_decoder_deps="zlib"
1766 twinvq_decoder_select="mdct lsp sinewin"
1767 utvideo_decoder_select="dsputil"
1768 utvideo_encoder_select="dsputil huffman"
1769 vble_decoder_select="dsputil"
1770 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1771 vc1image_decoder_select="vc1_decoder"
1772 vorbis_decoder_select="mdct"
1773 vorbis_encoder_select="mdct"
1774 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1775 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1776 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1777 vp6a_decoder_select="vp6_decoder"
1778 vp6f_decoder_select="vp6_decoder"
1779 vp8_decoder_select="h264pred videodsp"
1780 vp9_decoder_select="videodsp"
1781 webp_decoder_select="vp8_decoder"
1782 wmapro_decoder_select="mdct sinewin"
1783 wmav1_decoder_select="mdct sinewin"
1784 wmav1_encoder_select="mdct sinewin"
1785 wmav2_decoder_select="mdct sinewin"
1786 wmav2_encoder_select="mdct sinewin"
1787 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1788 wmv1_decoder_select="h263_decoder"
1789 wmv1_encoder_select="h263_encoder"
1790 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1791 wmv2_encoder_select="h263_encoder"
1792 wmv3_decoder_select="vc1_decoder"
1793 wmv3image_decoder_select="wmv3_decoder"
1794 zerocodec_decoder_deps="zlib"
1795 zlib_decoder_deps="zlib"
1796 zlib_encoder_deps="zlib"
1797 zmbv_decoder_deps="zlib"
1798 zmbv_encoder_deps="zlib"
1799
1800 # hardware accelerators
1801 dxva2_deps="dxva2api_h"
1802 vaapi_deps="va_va_h"
1803 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1804 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1805 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1806
1807 h263_vaapi_hwaccel_deps="vaapi"
1808 h263_vaapi_hwaccel_select="h263_decoder"
1809 h263_vdpau_hwaccel_deps="vdpau"
1810 h263_vdpau_hwaccel_select="h263_decoder"
1811 h264_dxva2_hwaccel_deps="dxva2"
1812 h264_dxva2_hwaccel_select="h264_decoder"
1813 h264_vaapi_hwaccel_deps="vaapi"
1814 h264_vaapi_hwaccel_select="h264_decoder"
1815 h264_vda_hwaccel_deps="vda"
1816 h264_vda_hwaccel_select="h264_decoder"
1817 h264_vdpau_hwaccel_deps="vdpau"
1818 h264_vdpau_hwaccel_select="h264_decoder"
1819 mpeg1_vdpau_hwaccel_deps="vdpau"
1820 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1821 mpeg2_dxva2_hwaccel_deps="dxva2"
1822 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1823 mpeg2_vaapi_hwaccel_deps="vaapi"
1824 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1825 mpeg2_vdpau_hwaccel_deps="vdpau"
1826 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1827 mpeg4_vaapi_hwaccel_deps="vaapi"
1828 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1829 mpeg4_vdpau_hwaccel_deps="vdpau"
1830 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1831 vc1_dxva2_hwaccel_deps="dxva2"
1832 vc1_dxva2_hwaccel_select="vc1_decoder"
1833 vc1_vaapi_hwaccel_deps="vaapi"
1834 vc1_vaapi_hwaccel_select="vc1_decoder"
1835 vc1_vdpau_hwaccel_deps="vdpau"
1836 vc1_vdpau_hwaccel_select="vc1_decoder"
1837 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1838 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1839 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1840
1841 # parsers
1842 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1843 mpeg4video_parser_select="error_resilience mpegvideo"
1844 mpegvideo_parser_select="error_resilience mpegvideo"
1845 vc1_parser_select="mpegvideo"
1846
1847 # external libraries
1848 libfaac_encoder_deps="libfaac"
1849 libfaac_encoder_select="audio_frame_queue"
1850 libfdk_aac_decoder_deps="libfdk_aac"
1851 libfdk_aac_encoder_deps="libfdk_aac"
1852 libfdk_aac_encoder_select="audio_frame_queue"
1853 libgsm_decoder_deps="libgsm"
1854 libgsm_encoder_deps="libgsm"
1855 libgsm_ms_decoder_deps="libgsm"
1856 libgsm_ms_encoder_deps="libgsm"
1857 libilbc_decoder_deps="libilbc"
1858 libilbc_encoder_deps="libilbc"
1859 libmp3lame_encoder_deps="libmp3lame"
1860 libmp3lame_encoder_select="audio_frame_queue"
1861 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1862 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1863 libopencore_amrnb_encoder_select="audio_frame_queue"
1864 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1865 libopenjpeg_decoder_deps="libopenjpeg"
1866 libopenjpeg_encoder_deps="libopenjpeg"
1867 libopus_decoder_deps="libopus"
1868 libopus_encoder_deps="libopus"
1869 libopus_encoder_select="audio_frame_queue"
1870 libschroedinger_decoder_deps="libschroedinger"
1871 libschroedinger_encoder_deps="libschroedinger"
1872 libspeex_decoder_deps="libspeex"
1873 libspeex_encoder_deps="libspeex"
1874 libspeex_encoder_select="audio_frame_queue"
1875 libtheora_encoder_deps="libtheora"
1876 libvo_aacenc_encoder_deps="libvo_aacenc"
1877 libvo_aacenc_encoder_select="audio_frame_queue"
1878 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1879 libvorbis_encoder_deps="libvorbis"
1880 libvorbis_encoder_select="audio_frame_queue"
1881 libvpx_vp8_decoder_deps="libvpx"
1882 libvpx_vp8_encoder_deps="libvpx"
1883 libvpx_vp9_decoder_deps="libvpx"
1884 libvpx_vp9_encoder_deps="libvpx"
1885 libwavpack_encoder_deps="libwavpack"
1886 libwebp_encoder_deps="libwebp"
1887 libx264_encoder_deps="libx264"
1888 libxavs_encoder_deps="libxavs"
1889 libxvid_encoder_deps="libxvid"
1890
1891 # demuxers / muxers
1892 ac3_demuxer_select="ac3_parser"
1893 asf_demuxer_select="riffdec"
1894 asf_muxer_select="riffenc"
1895 asf_stream_muxer_select="asf_muxer"
1896 avi_demuxer_select="riffdec"
1897 avi_muxer_select="riffenc"
1898 avisynth_demuxer_deps="avisynth"
1899 avisynth_demuxer_select="riffdec"
1900 caf_demuxer_select="riffdec"
1901 dirac_demuxer_select="dirac_parser"
1902 dxa_demuxer_select="riffdec"
1903 eac3_demuxer_select="ac3_parser"
1904 f4v_muxer_select="mov_muxer"
1905 flac_demuxer_select="flac_parser"
1906 hds_muxer_select="flv_muxer"
1907 hls_muxer_select="mpegts_muxer"
1908 ipod_muxer_select="mov_muxer"
1909 ismv_muxer_select="mov_muxer"
1910 matroska_audio_muxer_select="matroska_muxer"
1911 matroska_demuxer_select="riffdec"
1912 matroska_demuxer_suggest="bzlib lzo zlib"
1913 matroska_muxer_select="riffenc"
1914 mmf_muxer_select="riffenc"
1915 mov_demuxer_select="riffdec"
1916 mov_demuxer_suggest="zlib"
1917 mov_muxer_select="riffenc rtpenc_chain"
1918 mp3_demuxer_select="mpegaudio_parser"
1919 mp4_muxer_select="mov_muxer"
1920 mpegts_muxer_select="adts_muxer latm_muxer"
1921 mpegtsraw_demuxer_select="mpegts_demuxer"
1922 mxf_d10_muxer_select="mxf_muxer"
1923 nut_muxer_select="riffenc"
1924 nuv_demuxer_select="riffdec"
1925 ogg_demuxer_select="golomb"
1926 psp_muxer_select="mov_muxer"
1927 rtp_demuxer_select="sdp_demuxer"
1928 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1929 rtsp_demuxer_select="http_protocol rtpdec"
1930 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1931 sap_demuxer_select="sdp_demuxer"
1932 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1933 sdp_demuxer_select="rtpdec"
1934 smoothstreaming_muxer_select="ismv_muxer"
1935 spdif_muxer_select="aac_parser"
1936 tak_demuxer_select="tak_parser"
1937 tg2_muxer_select="mov_muxer"
1938 tgp_muxer_select="mov_muxer"
1939 w64_demuxer_select="wav_demuxer"
1940 wav_demuxer_select="riffdec"
1941 wav_muxer_select="riffenc"
1942 webm_muxer_select="riffenc"
1943 wtv_demuxer_select="riffdec"
1944 xmv_demuxer_select="riffdec"
1945 xwma_demuxer_select="riffdec"
1946
1947 # indevs / outdevs
1948 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1949 alsa_outdev_deps="alsa_asoundlib_h"
1950 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1951 dv1394_indev_deps="dv1394"
1952 dv1394_indev_select="dv_demuxer"
1953 fbdev_indev_deps="linux_fb_h"
1954 jack_indev_deps="jack_jack_h pthreads"
1955 libcdio_indev_deps="libcdio"
1956 libdc1394_indev_deps="libdc1394"
1957 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1958 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1959 pulse_indev_deps="libpulse"
1960 sndio_indev_deps="sndio_h"
1961 sndio_outdev_deps="sndio_h"
1962 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1963 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1964 vfwcap_indev_extralibs="-lavicap32"
1965 x11grab_indev_deps="x11grab XShmCreateImage"
1966
1967 # protocols
1968 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1969 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1970 ffrtmpcrypt_protocol_select="tcp_protocol"
1971 ffrtmphttp_protocol_deps="!librtmp_protocol"
1972 ffrtmphttp_protocol_select="http_protocol"
1973 gopher_protocol_select="network"
1974 httpproxy_protocol_select="tcp_protocol"
1975 http_protocol_select="tcp_protocol"
1976 https_protocol_select="tls_protocol"
1977 librtmp_protocol_deps="librtmp"
1978 librtmpe_protocol_deps="librtmp"
1979 librtmps_protocol_deps="librtmp"
1980 librtmpt_protocol_deps="librtmp"
1981 librtmpte_protocol_deps="librtmp"
1982 mmsh_protocol_select="http_protocol"
1983 mmst_protocol_select="network"
1984 rtmp_protocol_deps="!librtmp_protocol"
1985 rtmp_protocol_select="tcp_protocol"
1986 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1987 rtmps_protocol_deps="!librtmp_protocol"
1988 rtmps_protocol_select="tls_protocol"
1989 rtmpt_protocol_select="ffrtmphttp_protocol"
1990 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1991 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1992 rtp_protocol_select="udp_protocol"
1993 sctp_protocol_deps="struct_sctp_event_subscribe"
1994 sctp_protocol_select="network"
1995 srtp_protocol_select="rtp_protocol"
1996 tcp_protocol_select="network"
1997 tls_protocol_deps_any="openssl gnutls"
1998 tls_protocol_select="tcp_protocol"
1999 udp_protocol_select="network"
2000 unix_protocol_deps="sys_un_h"
2001 unix_protocol_select="network"
2002
2003 # filters
2004 blackframe_filter_deps="gpl"
2005 boxblur_filter_deps="gpl"
2006 cropdetect_filter_deps="gpl"
2007 delogo_filter_deps="gpl"
2008 drawtext_filter_deps="libfreetype"
2009 frei0r_filter_deps="frei0r dlopen strtok_r"
2010 frei0r_filter_extralibs='$ldl'
2011 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2012 frei0r_src_filter_extralibs='$ldl'
2013 hqdn3d_filter_deps="gpl"
2014 interlace_filter_deps="gpl"
2015 resample_filter_deps="avresample"
2016 ocv_filter_deps="libopencv"
2017 scale_filter_deps="swscale"
2018
2019 # examples
2020 output_example_deps="avcodec avformat avutil swscale"
2021 transcode_aac_example_deps="avcodec avformat avresample"
2022
2023 # libraries
2024 avcodec_deps="avutil"
2025 avdevice_deps="avutil avcodec avformat"
2026 avfilter_deps="avutil"
2027 avformat_deps="avutil avcodec"
2028 avresample_deps="avutil"
2029 swscale_deps="avutil"
2030
2031 # programs
2032 avconv_deps="avcodec avfilter avformat avresample swscale"
2033 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2034 fps_filter null_filter resample_filter scale_filter
2035 setpts_filter trim_filter"
2036 avplay_deps="avcodec avformat avresample swscale sdl"
2037 avplay_select="rdft"
2038 avprobe_deps="avcodec avformat"
2039 avserver_deps="avformat fork !shared"
2040 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2041 avserver_extralibs='$ldl'
2042
2043 # documentation
2044 pod2man_deps="doc"
2045 texi2html_deps="doc"
2046
2047 # default parameters
2048
2049 logfile="config.log"
2050
2051 # installation paths
2052 prefix_default="/usr/local"
2053 bindir_default='${prefix}/bin'
2054 datadir_default='${prefix}/share/avconv'
2055 docdir_default='${prefix}/share/doc/libav'
2056 incdir_default='${prefix}/include'
2057 libdir_default='${prefix}/lib'
2058 mandir_default='${prefix}/share/man'
2059 shlibdir_default="$libdir_default"
2060
2061 # toolchain
2062 ar_default="ar"
2063 cc_default="gcc"
2064 host_cc_default="gcc"
2065 cp_f="cp -f"
2066 ln_s="ln -s -f"
2067 nm_default="nm -g"
2068 objformat="elf"
2069 pkg_config_default=pkg-config
2070 ranlib="ranlib"
2071 strip="strip"
2072 yasmexe="yasm"
2073
2074 nogas=":"
2075
2076 # machine
2077 arch_default=$(uname -m)
2078 cpu="generic"
2079
2080 # OS
2081 target_os_default=$(tolower $(uname -s))
2082 host_os=$target_os_default
2083
2084 # configurable options
2085 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2086
2087 enable asm
2088 enable debug
2089 enable doc
2090 enable optimizations
2091 enable safe_bitstream_reader
2092 enable static
2093 enable swscale_alpha
2094
2095 # By default, enable only those hwaccels that have no external dependencies.
2096 enable dxva2 vdpau
2097
2098 # build settings
2099 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2100 LIBPREF="lib"
2101 LIBSUF=".a"
2102 FULLNAME='$(NAME)$(BUILDSUF)'
2103 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2104 SLIBPREF="lib"
2105 SLIBSUF=".so"
2106 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2107 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2108 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2109 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2110 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2111 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2112
2113 asflags_filter=echo
2114 cflags_filter=echo
2115 ldflags_filter=echo
2116
2117 AS_C='-c'
2118 AS_O='-o $@'
2119 CC_C='-c'
2120 CC_E='-E -o $@'
2121 CC_O='-o $@'
2122 LD_O='-o $@'
2123 LD_LIB='-l%'
2124 LD_PATH='-L'
2125 HOSTCC_C='-c'
2126 HOSTCC_E='-E -o $@'
2127 HOSTCC_O='-o $@'
2128 HOSTLD_O='-o $@'
2129
2130 host_libs='-lm'
2131 host_cflags_filter=echo
2132 host_ldflags_filter=echo
2133
2134 target_path='$(CURDIR)'
2135
2136 # since the object filename is not given with the -MM flag, the compiler
2137 # is only able to print the basename, and we must add the path ourselves
2138 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2139 DEPFLAGS='-MM'
2140
2141 # find source path
2142 if test -f configure; then
2143 source_path=.
2144 else
2145 source_path=$(cd $(dirname "$0"); pwd)
2146 echo "$source_path" | grep -q '[[:blank:]]' &&
2147 die "Out of tree builds are impossible with whitespace in source path."
2148 test -e "$source_path/config.h" &&
2149 die "Out of tree builds are impossible with config.h in source dir."
2150 fi
2151
2152 for v in "$@"; do
2153 r=${v#*=}
2154 l=${v%"$r"}
2155 r=$(sh_quote "$r")
2156 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2157 done
2158
2159 find_things(){
2160 thing=$1
2161 pattern=$2
2162 file=$source_path/$3
2163 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2164 }
2165
2166 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2167 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2168 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2169 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2170 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2171 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2172 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2173 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2174 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2175 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2176 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2177
2178 ALL_COMPONENTS="
2179 $BSF_LIST
2180 $DECODER_LIST
2181 $DEMUXER_LIST
2182 $ENCODER_LIST
2183 $FILTER_LIST
2184 $HWACCEL_LIST
2185 $INDEV_LIST
2186 $MUXER_LIST
2187 $OUTDEV_LIST
2188 $PARSER_LIST
2189 $PROTOCOL_LIST
2190 "
2191
2192 for n in $COMPONENT_LIST; do
2193 v=$(toupper ${n%s})_LIST
2194 eval enable \$$v
2195 eval ${n}_if_any="\$$v"
2196 done
2197
2198 enable $ARCH_EXT_LIST
2199
2200 die_unknown(){
2201 echo "Unknown option \"$1\"."
2202 echo "See $0 --help for available options."
2203 exit 1
2204 }
2205
2206 print_3_columns() {
2207 cat | tr ' ' '\n' | sort | pr -r -3 -t
2208 }
2209
2210 show_list() {
2211 suffix=_$1
2212 shift
2213 echo $* | sed s/$suffix//g | print_3_columns
2214 exit 0
2215 }
2216
2217 rand_list(){
2218 IFS=', '
2219 set -- $*
2220 unset IFS
2221 for thing; do
2222 comp=${thing%:*}
2223 prob=${thing#$comp}
2224 prob=${prob#:}
2225 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2226 echo "prob ${prob:-0.5}"
2227 printf '%s\n' $comp
2228 done
2229 }
2230
2231 do_random(){
2232 action=$1
2233 shift
2234 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2235 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2236 }
2237
2238 for opt do
2239 optval="${opt#*=}"
2240 case "$opt" in
2241 --extra-ldflags=*)
2242 add_ldflags $optval
2243 ;;
2244 --extra-libs=*)
2245 add_extralibs $optval
2246 ;;
2247 --disable-devices)
2248 disable $INDEV_LIST $OUTDEV_LIST
2249 ;;
2250 --enable-debug=*)
2251 debuglevel="$optval"
2252 ;;
2253 --disable-programs)
2254 disable $PROGRAM_LIST
2255 ;;
2256 --disable-everything)
2257 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2258 ;;
2259 --disable-all)
2260 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2261 disable $LIBRARY_LIST $PROGRAM_LIST doc
2262 ;;
2263 --enable-random|--disable-random)
2264 action=${opt%%-random}
2265 do_random ${action#--} $COMPONENT_LIST
2266 ;;
2267 --enable-random=*|--disable-random=*)
2268 action=${opt%%-random=*}
2269 do_random ${action#--} $optval
2270 ;;
2271 --enable-*=*|--disable-*=*)
2272 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2273 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2274 eval list=\$$(toupper $thing)_LIST
2275 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2276 $action $(filter "$name" $list)
2277 ;;
2278 --enable-?*|--disable-?*)
2279 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2280 if is_in $option $COMPONENT_LIST; then
2281 test $action = disable && action=unset
2282 eval $action \$$(toupper ${option%s})_LIST
2283 elif is_in $option $CMDLINE_SELECT; then
2284 $action $option
2285 else
2286 die_unknown $opt
2287 fi
2288 ;;
2289 --list-*)
2290 NAME="${opt#--list-}"
2291 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2292 NAME=${NAME%s}
2293 eval show_list $NAME \$$(toupper $NAME)_LIST
2294 ;;
2295 --help|-h) show_help
2296 ;;
2297 *)
2298 optname="${opt%%=*}"
2299 optname="${optname#--}"
2300 optname=$(echo "$optname" | sed 's/-/_/g')
2301 if is_in $optname $CMDLINE_SET; then
2302 eval $optname='$optval'
2303 elif is_in $optname $CMDLINE_APPEND; then
2304 append $optname "$optval"
2305 else
2306 die_unknown $opt
2307 fi
2308 ;;
2309 esac
2310 done
2311
2312 disabled logging && logfile=/dev/null
2313
2314 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2315 set >> $logfile
2316
2317 test -n "$cross_prefix" && enable cross_compile
2318
2319 if enabled cross_compile; then
2320 test -n "$arch" && test -n "$target_os" ||
2321 die "Must specify target arch and OS when cross-compiling"
2322 fi
2323
2324 ar_default="${cross_prefix}${ar_default}"
2325 cc_default="${cross_prefix}${cc_default}"
2326 nm_default="${cross_prefix}${nm_default}"
2327 pkg_config_default="${cross_prefix}${pkg_config_default}"
2328 ranlib="${cross_prefix}${ranlib}"
2329 strip="${cross_prefix}${strip}"
2330
2331 sysinclude_default="${sysroot}/usr/include"
2332
2333 case "$toolchain" in
2334 clang-asan)
2335 cc_default="clang"
2336 add_cflags -fsanitize=address
2337 add_ldflags -fsanitize=address
2338 ;;
2339 clang-tsan)
2340 cc_default="clang"
2341 add_cflags -fsanitize=thread -pie
2342 add_ldflags -fsanitize=thread -pie
2343 ;;
2344 gcc-asan)
2345 cc_default="gcc"
2346 add_cflags -fsanitize=address
2347 add_ldflags -fsanitize=address
2348 ;;
2349 gcc-tsan)
2350 cc_default="gcc"
2351 add_cflags -fsanitize=thread -pie -fPIC
2352 add_ldflags -fsanitize=thread -pie -fPIC
2353 ;;
2354 valgrind-massif)
2355 target_exec_default="valgrind"
2356 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2357 ;;
2358 valgrind-memcheck)
2359 target_exec_default="valgrind"
2360 target_exec_args="--track-origins=yes --leak-check=full"
2361 ;;
2362 msvc)
2363 # Check whether the current MSVC version needs the C99 converter.
2364 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2365 # support enough of C99 to build libav. Default to the new
2366 # behaviour if the regexp was unable to match anything, since this
2367 # successfully parses the version number of existing supported
2368 # versions that require the converter (MSVC 2010 and 2012).
2369 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2370 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2371 cc_default="cl"
2372 else
2373 cc_default="c99wrap cl"
2374 fi
2375 ld_default="link"
2376 nm_default="dumpbin -symbols"
2377 ar_default="lib"
2378 target_os_default="win32"
2379 # Use a relative path for TMPDIR. This makes sure all the
2380 # ffconf temp files are written with a relative path, avoiding
2381 # issues with msys/win32 path conversion for MSVC parameters
2382 # such as -Fo<file> or -out:<file>.
2383 TMPDIR=.
2384 ;;
2385 icl)
2386 cc_default="icl"
2387 ld_default="xilink"
2388 nm_default="dumpbin -symbols"
2389 ar_default="xilib"
2390 target_os_default="win32"
2391 TMPDIR=.
2392 ;;
2393 gcov)
2394 add_cflags -fprofile-arcs -ftest-coverage
2395 add_ldflags -fprofile-arcs -ftest-coverage
2396 ;;
2397 hardened)
2398 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2399 add_ldflags -Wl,-z,relro -Wl,-z,now
2400 ;;
2401 ?*)
2402 die "Unknown toolchain $toolchain"
2403 ;;
2404 esac
2405
2406 set_default arch cc pkg_config sysinclude target_exec target_os
2407 enabled cross_compile || host_cc_default=$cc
2408 set_default host_cc
2409
2410 if ! $pkg_config --version >/dev/null 2>&1; then
2411 warn "$pkg_config not found, library detection may fail."
2412 pkg_config=false
2413 fi
2414
2415 exesuf() {
2416 case $1 in
2417 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2418 esac
2419 }
2420
2421 EXESUF=$(exesuf $target_os)
2422 HOSTEXESUF=$(exesuf $host_os)
2423
2424 # set temporary file name
2425 : ${TMPDIR:=$TEMPDIR}
2426 : ${TMPDIR:=$TMP}
2427 : ${TMPDIR:=/tmp}
2428
2429 if ! check_cmd mktemp -u XXXXXX; then
2430 # simple replacement for missing mktemp
2431 # NOT SAFE FOR GENERAL USE
2432 mktemp(){
2433 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2434 }
2435 fi
2436
2437 tmpfile(){
2438 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2439 (set -C; exec > $tmp) 2>/dev/null ||
2440 die "Unable to create temporary file in $TMPDIR."
2441 append TMPFILES $tmp
2442 eval $1=$tmp
2443 }
2444
2445 trap 'rm -f -- $TMPFILES' EXIT
2446
2447 tmpfile TMPASM .asm
2448 tmpfile TMPC .c
2449 tmpfile TMPE $EXESUF
2450 tmpfile TMPH .h
2451 tmpfile TMPO .o
2452 tmpfile TMPS .S
2453 tmpfile TMPSH .sh
2454 tmpfile TMPV .ver
2455
2456 unset -f mktemp
2457
2458 chmod +x $TMPE
2459
2460 # make sure we can execute files in $TMPDIR
2461 cat > $TMPSH 2>> $logfile <<EOF
2462 #! /bin/sh
2463 EOF
2464 chmod +x $TMPSH >> $logfile 2>&1
2465 if ! $TMPSH >> $logfile 2>&1; then
2466 cat <<EOF
2467 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2468 variable to another directory and make sure that it is not mounted noexec.
2469 EOF
2470 die "Sanity test failed."
2471 fi
2472
2473 ccc_flags(){
2474 for flag; do
2475 case $flag in
2476 -std=c99) echo -c99 ;;
2477 -mcpu=*) echo -arch ${flag#*=} ;;
2478 -mieee) echo -ieee ;;
2479 -O*|-fast) echo $flag ;;
2480 -fno-math-errno) echo -assume nomath_errno ;;
2481 -g) echo -g3 ;;
2482 -Wall) echo -msg_enable level2 ;;
2483 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2484 -Wl,*) echo $flag ;;
2485 -f*|-W*) ;;
2486 *) echo $flag ;;
2487 esac
2488 done
2489 }
2490
2491 cparser_flags(){
2492 for flag; do
2493 case $flag in
2494 -Wno-switch) echo -Wno-switch-enum ;;
2495 -Wno-format-zero-length) ;;
2496 -Wdisabled-optimization) ;;
2497 -Wno-pointer-sign) echo -Wno-other ;;
2498 *) echo $flag ;;
2499 esac
2500 done
2501 }
2502
2503 msvc_common_flags(){
2504 for flag; do
2505 case $flag in
2506 # In addition to specifying certain flags under the compiler
2507 # specific filters, they must be specified here as well or else the
2508 # generic catch all at the bottom will print the original flag.
2509 -Wall) ;;
2510 -std=c99) ;;
2511 # Common flags
2512 -fomit-frame-pointer) ;;
2513 -g) echo -Z7 ;;
2514 -fno-math-errno) ;;
2515 -fno-common) ;;
2516 -fno-signed-zeros) ;;
2517 -fPIC) ;;
2518 -mthumb) ;;
2519 -march=*) ;;
2520 -lz) echo zlib.lib ;;
2521 -lavifil32) echo vfw32.lib ;;
2522 -lavicap32) echo vfw32.lib user32.lib ;;
2523 -l*) echo ${flag#-l}.lib ;;
2524 *) echo $flag ;;
2525 esac
2526 done
2527 }
2528
2529 msvc_flags(){
2530 msvc_common_flags "$@"
2531 for flag; do
2532 case $flag in
2533 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2534 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2535 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2536 -wd4273 ;;
2537 esac
2538 done
2539 }
2540
2541 icl_flags(){
2542 msvc_common_flags "$@"
2543 for flag; do
2544 case $flag in
2545 # Despite what Intel's documentation says -Wall, which is supported
2546 # on Windows, does enable remarks so disable them here.
2547 -Wall) echo $flag -Qdiag-disable:remark ;;
2548 -std=c99) echo -Qstd=c99 ;;
2549 esac
2550 done
2551 }
2552
2553 pgi_flags(){
2554 for flag; do
2555 case $flag in
2556 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2557 -fomit-frame-pointer) echo -Mnoframe ;;
2558 -g) echo -gopt ;;
2559 *) echo $flag ;;
2560 esac
2561 done
2562 }
2563
2564 suncc_flags(){
2565 for flag; do
2566 case $flag in
2567 -march=*|-mcpu=*)
2568 case "${flag#*=}" in
2569 native) echo -xtarget=native ;;
2570 v9|niagara) echo -xarch=sparc ;;
2571 ultrasparc) echo -xarch=sparcvis ;;
2572 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2573 i586|pentium) echo -xchip=pentium ;;
2574 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2575 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2576 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2577 pentium4*) echo -xtarget=pentium4 ;;
2578 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2579 *-sse3) echo -xarch=sse3 ;;
2580 core2) echo -xarch=ssse3 -xchip=core2 ;;
2581 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2582 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2583 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2584 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2585 k8|opteron|athlon64|athlon-fx)
2586 echo -xarch=sse2a ;;
2587 athlon*) echo -xarch=pentium_proa ;;
2588 esac
2589 ;;
2590 -std=c99) echo -xc99 ;;
2591 -fomit-frame-pointer) echo -xregs=frameptr ;;
2592 -fPIC) echo -KPIC -xcode=pic32 ;;
2593 -W*,*) echo $flag ;;
2594 -f*-*|-W*|-mimpure-text) ;;
2595 -shared) echo -G ;;
2596 *) echo $flag ;;
2597 esac
2598 done
2599 }
2600
2601 tms470_flags(){
2602 for flag; do
2603 case $flag in
2604 -march=*|-mcpu=*)
2605 case "${flag#*=}" in
2606 armv7-a|cortex-a*) echo -mv=7a8 ;;
2607 armv7-r|cortex-r*) echo -mv=7r4 ;;
2608 armv7-m|cortex-m*) echo -mv=7m3 ;;
2609 armv6*|arm11*) echo -mv=6 ;;
2610 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2611 echo -mv=5e ;;
2612 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2613 esac
2614 ;;
2615 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2616 -mfpu=vfp) echo --float_support=vfpv2 ;;
2617 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2618 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2619 -msoft-float) echo --float_support=vfplib ;;
2620 -O[0-3]|-mf=*) echo $flag ;;
2621 -g) echo -g -mn ;;
2622 -pds=*) echo $flag ;;
2623 -D*|-I*) echo $flag ;;
2624 --gcc|--abi=*) echo $flag ;;
2625 -me) echo $flag ;;
2626 esac
2627 done
2628 }
2629
2630 probe_cc(){
2631 pfx=$1
2632 _cc=$2
2633
2634 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2635 unset _ld_o _ldflags _ld_lib _ld_path
2636 unset _depflags _DEPCMD _DEPFLAGS
2637 _flags_filter=echo
2638
2639 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2640 _type=llvm_gcc
2641 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2642 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2643 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2644 _cflags_speed='-O3'
2645 _cflags_size='-Os'
2646 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2647 _type=gcc
2648 gcc_version=$($_cc --version | head -n1)
2649 gcc_basever=$($_cc -dumpversion)
2650 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2651 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2652 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2653 if ! $_cc -dumpversion | grep -q '^2\.'; then
2654 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2655 fi
2656 _cflags_speed='-O3'
2657 _cflags_size='-Os'
2658 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2659 _type=icc
2660 _ident=$($_cc --version | head -n1)
2661 _depflags='-MMD'
2662 _cflags_speed='-O3'
2663 _cflags_size='-Os'
2664 _cflags_noopt='-O1'
2665 elif $_cc -v 2>&1 | grep -q xlc; then
2666 _type=xlc
2667 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2668 _cflags_speed='-O5'
2669 _cflags_size='-O5 -qcompact'
2670 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2671 _type=ccc
2672 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2673 _DEPFLAGS='-M'
2674 _cflags_speed='-fast'
2675 _cflags_size='-O1'
2676 _flags_filter=ccc_flags
2677 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2678 test -d "$sysroot" || die "No valid sysroot specified."
2679 _type=armcc
2680 _ident=$($_cc --vsn | head -n1)
2681 armcc_conf="$PWD/armcc.conf"
2682 $_cc --arm_linux_configure \
2683 --arm_linux_config_file="$armcc_conf" \
2684 --configure_sysroot="$sysroot" \
2685 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2686 die "Error creating armcc configuration file."
2687 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2688 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2689 as_default="${cross_prefix}gcc"
2690 _depflags='-MMD'
2691 _cflags_speed='-O3'
2692 _cflags_size='-Os'
2693 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2694 _type=tms470
2695 _ident=$($_cc -version | head -n1 | tr -s ' ')
2696 _flags='--gcc --abi=eabi -me'
2697 _cc_e='-ppl -fe=$@'
2698 _cc_o='-fe=$@'
2699 _depflags='-ppa -ppd=$(@:.o=.d)'
2700 _cflags_speed='-O3 -mf=5'
2701 _cflags_size='-O3 -mf=2'
2702 _flags_filter=tms470_flags
2703 elif $_cc -v 2>&1 | grep -q clang; then
2704 _type=clang
2705 _ident=$($_cc --version | head -n1)
2706 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2707 _cflags_speed='-O3'
2708 _cflags_size='-Os'
2709 elif $_cc -V 2>&1 | grep -q Sun; then
2710 _type=suncc
2711 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2712 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2713 _DEPFLAGS='-xM1 -xc99'
2714 _ldflags='-std=c99'
2715 _cflags_speed='-O5'
2716 _cflags_size='-O5 -xspace'
2717 _flags_filter=suncc_flags
2718 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2719 _type=pathscale
2720 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2721 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2722 _cflags_speed='-O2'
2723 _cflags_size='-Os'
2724 _flags_filter='filter_out -Wdisabled-optimization'
2725 elif $_cc -v 2>&1 | grep -q Open64; then
2726 _type=open64
2727 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2728 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2729 _cflags_speed='-O2'
2730 _cflags_size='-Os'
2731 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2732 elif $_cc -V 2>&1 | grep -q Portland; then
2733 _type=pgi
2734 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2735 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2736 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2737 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2738 _cflags_noopt="-O1"
2739 _flags_filter=pgi_flags
2740 elif $_cc 2>&1 | grep -q Microsoft; then
2741 _type=msvc
2742 _ident=$($cc 2>&1 | head -n1)
2743 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2744 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2745 _cflags_speed="-O2"
2746 _cflags_size="-O1"
2747 if $_cc 2>&1 | grep -q Linker; then
2748 _ld_o='-out:$@'
2749 else
2750 _ld_o='-Fe$@'
2751 fi
2752 _cc_o='-Fo$@'
2753 _cc_e='-P -Fi$@'
2754 _flags_filter=msvc_flags
2755 _ld_lib='lib%.a'
2756 _ld_path='-libpath:'
2757 _flags='-nologo'
2758 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2759 if [ $pfx = hostcc ]; then
2760 append _cflags -Dsnprintf=_snprintf
2761 fi
2762 elif $_cc 2>&1 | grep -q Intel; then
2763 _type=icl
2764 _ident=$($cc 2>&1 | head -n1)
2765 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2766 # Not only is O3 broken on 13.x+ but it is slower on all previous
2767 # versions (tested) as well.
2768 _cflags_speed="-O2"
2769 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2770 if $_cc 2>&1 | grep -q Linker; then
2771 _ld_o='-out:$@'
2772 else
2773 _ld_o='-Fe$@'
2774 fi
2775 _cc_o='-Fo$@'
2776 _cc_e='-P'
2777 _flags_filter=icl_flags
2778 _ld_lib='lib%.a'
2779 _ld_path='-libpath:'
2780 # -Qdiag-error to make icl error when seeing certain unknown arguments
2781 _flags='-nologo -Qdiag-error:4044,10157'
2782 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2783 # with MSVC which enables it by default.
2784 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2785 if [ $pfx = hostcc ]; then
2786 append _cflags -Dsnprintf=_snprintf
2787 fi
2788 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2789 _type=cparser
2790 _ident=$($_cc --version | head -n1)
2791 _depflags='-MMD'
2792 _cflags_speed='-O4'
2793 _cflags_size='-O2'
2794 _flags_filter=cparser_flags
2795 fi
2796
2797 eval ${pfx}_type=\$_type
2798 eval ${pfx}_ident=\$_ident
2799 }
2800
2801 set_ccvars(){
2802 eval ${1}_C=\${_cc_c-\${${1}_C}}
2803 eval ${1}_E=\${_cc_e-\${${1}_E}}
2804 eval ${1}_O=\${_cc_o-\${${1}_O}}
2805
2806 if [ -n "$_depflags" ]; then
2807 eval ${1}_DEPFLAGS=\$_depflags
2808 else
2809 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2810 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2811 eval DEP${1}FLAGS=\$_flags
2812 fi
2813 }
2814
2815 probe_cc cc "$cc"
2816 cflags_filter=$_flags_filter
2817 cflags_speed=$_cflags_speed
2818 cflags_size=$_cflags_size
2819 cflags_noopt=$_cflags_noopt
2820 add_cflags $_flags $_cflags
2821 cc_ldflags=$_ldflags
2822 set_ccvars CC
2823
2824 probe_cc hostcc "$host_cc"
2825 host_cflags_filter=$_flags_filter
2826 add_host_cflags $_flags $_cflags
2827 set_ccvars HOSTCC
2828
2829 test -n "$cc_type" && enable $cc_type ||
2830 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2831
2832 : ${as_default:=$cc}
2833 : ${dep_cc_default:=$cc}
2834 : ${ld_default:=$cc}
2835 : ${host_ld_default:=$host_cc}
2836 set_default ar as dep_cc ld host_ld
2837
2838 probe_cc as "$as"
2839 asflags_filter=$_flags_filter
2840 add_asflags $_flags $_cflags
2841 set_ccvars AS
2842
2843 probe_cc ld "$ld"
2844 ldflags_filter=$_flags_filter
2845 add_ldflags $_flags $_ldflags
2846 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2847 LD_O=${_ld_o-$LD_O}
2848 LD_LIB=${_ld_lib-$LD_LIB}
2849 LD_PATH=${_ld_path-$LD_PATH}
2850
2851 probe_cc hostld "$host_ld"
2852 host_ldflags_filter=$_flags_filter
2853 add_host_ldflags $_flags $_ldflags
2854 HOSTLD_O=${_ld_o-$HOSTLD_O}
2855
2856 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2857 probe_cc depcc "$dep_cc"
2858 CCDEP=${_DEPCMD:-$DEPCMD}
2859 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2860 DEPCCFLAGS=$_flags
2861 fi
2862
2863 if $ar 2>&1 | grep -q Microsoft; then
2864 arflags="-nologo"
2865 ar_o='-out:$@'
2866 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2867 arflags="rq"
2868 ar_o='$@'
2869 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2870 arflags='-Xany -r -c'
2871 ar_o='$@'
2872 else
2873 arflags="rc"
2874 ar_o='$@'
2875 fi
2876
2877 add_cflags $extra_cflags
2878 add_asflags $extra_cflags
2879
2880 if test -n "$sysroot"; then
2881 case "$cc_type" in
2882 gcc|llvm_gcc|clang)
2883 add_cppflags --sysroot="$sysroot"
2884 add_ldflags --sysroot="$sysroot"
2885 ;;
2886 tms470)
2887 add_cppflags -I"$sysinclude"
2888 add_ldflags --sysroot="$sysroot"
2889 ;;
2890 esac
2891 fi
2892
2893 if test "$cpu" = host; then
2894 enabled cross_compile &&
2895 die "--cpu=host makes no sense when cross-compiling."
2896
2897 case "$cc_type" in
2898 gcc|llvm_gcc)
2899 check_native(){
2900 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2901 sed -n "/cc1.*$1=/{
2902 s/.*$1=\\([^ ]*\\).*/\\1/
2903 p
2904 q
2905 }" $TMPE
2906 }
2907 cpu=$(check_native -march || check_native -mcpu)
2908 ;;
2909 esac
2910
2911 test "${cpu:-host}" = host &&
2912 die "--cpu=host not supported with compiler $cc"
2913 fi
2914
2915 # Deal with common $arch aliases
2916 case "$arch" in
2917 aarch64|arm64)
2918 arch="aarch64"
2919 ;;
2920 arm*)
2921 arch="arm"
2922 ;;
2923 mips*|IP*)
2924 arch="mips"
2925 ;;
2926 parisc*|hppa*)
2927 arch="parisc"
2928 ;;
2929 "Power Macintosh"|ppc*|powerpc*)
2930 arch="ppc"
2931 ;;
2932 s390|s390x)
2933 arch="s390"
2934 ;;
2935 sh4|sh)
2936 arch="sh4"
2937 ;;
2938 sun4u|sparc*)
2939 arch="sparc"
2940 ;;
2941 tilegx|tile-gx)
2942 arch="tilegx"
2943 ;;
2944 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2945 arch="x86"
2946 ;;
2947 esac
2948
2949 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2950 enable $arch
2951
2952 # Add processor-specific flags
2953 if enabled aarch64; then
2954
2955 case $cpu in
2956 armv*)
2957 cpuflags="-march=$cpu"
2958 ;;
2959 *)
2960 cpuflags="-mcpu=$cpu"
2961 ;;
2962 esac
2963
2964 elif enabled alpha; then
2965
2966 cpuflags="-mcpu=$cpu"
2967
2968 elif enabled arm; then
2969
2970 check_arm_arch() {
2971 check_cpp_condition stddef.h \
2972 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2973 $cpuflags
2974 }
2975
2976 probe_arm_arch() {
2977 if check_arm_arch 4; then echo armv4;
2978 elif check_arm_arch 4T; then echo armv4t;
2979 elif check_arm_arch 5; then echo armv5;
2980 elif check_arm_arch 5E; then echo armv5e;
2981 elif check_arm_arch 5T; then echo armv5t;
2982 elif check_arm_arch 5TE; then echo armv5te;
2983 elif check_arm_arch 5TEJ; then echo armv5te;
2984 elif check_arm_arch 6; then echo armv6;
2985 elif check_arm_arch 6J; then echo armv6j;
2986 elif check_arm_arch 6K; then echo armv6k;
2987 elif check_arm_arch 6Z; then echo armv6z;
2988 elif check_arm_arch 6ZK; then echo armv6zk;
2989 elif check_arm_arch 6T2; then echo armv6t2;
2990 elif check_arm_arch 7; then echo armv7;
2991 elif check_arm_arch 7A 7_A; then echo armv7-a;
2992 elif check_arm_arch 7R 7_R; then echo armv7-r;
2993 elif check_arm_arch 7M 7_M; then echo armv7-m;
2994 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2995 elif check_arm_arch 8A 8_A; then echo armv8-a;
2996 fi
2997 }
2998
2999 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3000
3001 case $cpu in
3002 armv*)
3003 cpuflags="-march=$cpu"
3004 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3005 ;;
3006 *)
3007 cpuflags="-mcpu=$cpu"
3008 case $cpu in
3009 cortex-a*) subarch=armv7a ;;
3010 cortex-r*) subarch=armv7r ;;
3011 cortex-m*) enable thumb; subarch=armv7m ;;
3012 arm11*) subarch=armv6 ;;
3013 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3014 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3015 *) subarch=$(probe_arm_arch) ;;
3016 esac
3017 ;;
3018 esac
3019
3020 case "$subarch" in
3021 armv5t*) enable fast_clz ;;
3022 armv[6-8]*) enable fast_clz fast_unaligned ;;
3023 esac
3024
3025 elif enabled avr32; then
3026
3027 case $cpu in
3028 ap7[02]0[0-2])
3029 subarch="avr32_ap"
3030 cpuflags="-mpart=$cpu"
3031 ;;
3032 ap)
3033 subarch="avr32_ap"
3034 cpuflags="-march=$cpu"
3035 ;;
3036 uc3[ab]*)
3037 subarch="avr32_uc"
3038 cpuflags="-mcpu=$cpu"
3039 ;;
3040 uc)
3041 subarch="avr32_uc"
3042 cpuflags="-march=$cpu"
3043 ;;
3044 esac
3045
3046 elif enabled bfin; then
3047
3048 cpuflags="-mcpu=$cpu"
3049
3050 elif enabled mips; then
3051
3052 cpuflags="-march=$cpu"
3053
3054 elif enabled ppc; then
3055
3056 case $(tolower $cpu) in
3057 601|ppc601|powerpc601)
3058 cpuflags="-mcpu=601"
3059 disable altivec
3060 ;;
3061 603*|ppc603*|powerpc603*)
3062 cpuflags="-mcpu=603"
3063 disable altivec
3064 ;;
3065 604*|ppc604*|powerpc604*)
3066 cpuflags="-mcpu=604"
3067 disable altivec
3068 ;;
3069 g3|75*|ppc75*|powerpc75*)
3070 cpuflags="-mcpu=750"
3071 disable altivec
3072 ;;
3073 g4|745*|ppc745*|powerpc745*)
3074 cpuflags="-mcpu=7450"
3075 ;;
3076 74*|ppc74*|powerpc74*)
3077 cpuflags="-mcpu=7400"
3078 ;;
3079 g5|970|ppc970|powerpc970)
3080 cpuflags="-mcpu=970"
3081 ;;
3082 power[3-7]*)
3083 cpuflags="-mcpu=$cpu"
3084 ;;
3085 cell)
3086 cpuflags="-mcpu=cell"
3087 enable ldbrx
3088 ;;
3089 e500mc)
3090 cpuflags="-mcpu=e500mc"
3091 disable altivec
3092 ;;
3093 e500v2)
3094 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3095 disable altivec
3096 ;;
3097 e500)
3098 cpuflags="-mcpu=8540 -mhard-float"
3099 disable altivec
3100 ;;
3101 esac
3102
3103 elif enabled sparc; then
3104
3105 case $cpu in
3106 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3107 cpuflags="-mcpu=$cpu"
3108 disable vis
3109 ;;
3110 ultrasparc*|niagara[234])
3111 cpuflags="-mcpu=$cpu"
3112 ;;
3113 esac
3114
3115 elif enabled x86; then
3116
3117 case $cpu in
3118 i[345]86|pentium)
3119 cpuflags="-march=$cpu"
3120 disable mmx
3121 ;;
3122 # targets that do NOT support nopl and conditional mov (cmov)
3123 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3124 cpuflags="-march=$cpu"
3125 disable i686
3126 ;;
3127 # targets that do support nopl and conditional mov (cmov)
3128 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3129 cpuflags="-march=$cpu"
3130 enable i686
3131 enable fast_cmov
3132 ;;
3133 # targets that do support conditional mov but on which it's slow
3134 pentium4|pentium4m|prescott|nocona)
3135 cpuflags="-march=$cpu"
3136 enable i686
3137 disable fast_cmov
3138 ;;
3139 esac
3140
3141 fi
3142
3143 if [ "$cpu" != generic ]; then
3144 add_cflags $cpuflags
3145 add_asflags $cpuflags
3146 fi
3147
3148 # compiler sanity check
3149 check_exec <<EOF
3150 int main(void){ return 0; }
3151 EOF
3152 if test "$?" != 0; then
3153 echo "$cc is unable to create an executable file."
3154 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3155 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3156 echo "Only do this if you know what cross compiling means."
3157 fi
3158 die "C compiler test failed."
3159 fi
3160
3161 add_cppflags -D_ISOC99_SOURCE
3162 check_cflags -std=c99
3163 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3164 #include <stdlib.h>
3165 EOF
3166 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3167 #include <stdlib.h>
3168 EOF
3169
3170 add_host_cppflags -D_ISOC99_SOURCE
3171 check_host_cflags -std=c99
3172 check_host_cflags -Wall
3173 check_host_cflags -O3
3174
3175 check_64bit(){
3176 arch32=$1
3177 arch64=$2
3178 expr=$3
3179 check_code cc "" "int test[2*($expr) - 1]" &&
3180 subarch=$arch64 || subarch=$arch32
3181 }
3182
3183 case "$arch" in
3184 aarch64|alpha|ia64)
3185 spic=$shared
3186 ;;
3187 mips)
3188 check_64bit mips mips64 '_MIPS_SIM > 1'
3189 spic=$shared
3190 ;;
3191 parisc)
3192 check_64bit parisc parisc64 'sizeof(void *) > 4'
3193 spic=$shared
3194 ;;
3195 ppc)
3196 check_64bit ppc ppc64 'sizeof(void *) > 4'
3197 spic=$shared
3198 ;;
3199 sparc)
3200 check_64bit sparc sparc64 'sizeof(void *) > 4'
3201 spic=$shared
3202 ;;
3203 x86)
3204 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3205 if test "$subarch" = "x86_64"; then
3206 spic=$shared
3207 fi
3208 ;;
3209 esac
3210
3211 enable $subarch
3212 enabled spic && enable_weak pic
3213
3214 # OS specific
3215 case $target_os in
3216 aix)
3217 SHFLAGS=-shared
3218 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3219 enabled shared && add_ldflags -Wl,-brtl
3220 ;;
3221 haiku)
3222 prefix_default="/boot/common"
3223 network_extralibs="-lnetwork"
3224 host_libs=
3225 ;;
3226 sunos)
3227 SHFLAGS='-shared -Wl,-h,$$(@F)'
3228 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3229 network_extralibs="-lsocket -lnsl"
3230 # When using suncc to build, the Solaris linker will mark
3231 # an executable with each instruction set encountered by
3232 # the Solaris assembler. As our libraries contain their own
3233 # guards for processor-specific code, instead suppress
3234 # generation of the HWCAPS ELF section on Solaris x86 only.
3235 enabled_all suncc x86 &&
3236 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3237 add_ldflags -Wl,-M,mapfile
3238 nm_default='nm -P -g'
3239 ;;
3240 netbsd)
3241 disable symver
3242 oss_indev_extralibs="-lossaudio"
3243 oss_outdev_extralibs="-lossaudio"
3244 ;;
3245 openbsd|bitrig)
3246 disable symver
3247 SHFLAGS='-shared'
3248 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3249 SLIB_INSTALL_LINKS=
3250 oss_indev_extralibs="-lossaudio"
3251 oss_outdev_extralibs="-lossaudio"
3252 ;;
3253 dragonfly)
3254 disable symver
3255 ;;
3256 freebsd)
3257 ;;
3258 bsd/os)
3259 add_extralibs -lpoll -lgnugetopt
3260 ;;
3261 darwin)
3262 gas="gas-preprocessor.pl $cc"
3263 enabled ppc && add_asflags -force_cpusubtype_ALL
3264 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3265 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3266 add_ldflags -Wl,-dynamic,-search_paths_first
3267 SLIBSUF=".dylib"
3268 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3269 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3270 objformat="macho"
3271 enabled x86_64 && objformat="macho64"
3272 enabled_any pic shared ||
3273 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3274 ;;
3275 mingw32*)
3276 if test $target_os = "mingw32ce"; then
3277 disable network
3278 else
3279 target_os=mingw32
3280 fi
3281 LIBTARGET=i386
3282 if enabled x86_64; then
3283 LIBTARGET="i386:x86-64"
3284 elif enabled arm; then
3285 LIBTARGET=arm-wince
3286 fi
3287 check_ldflags -Wl,--nxcompat
3288 check_ldflags -Wl,--dynamicbase
3289 shlibdir_default="$bindir_default"
3290 SLIBPREF=""
3291 SLIBSUF=".dll"
3292 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3293 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3294 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3295 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3296 SLIB_INSTALL_LINKS=
3297 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3298 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3299 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3300 objformat="win32"
3301 dlltool="${cross_prefix}dlltool"
3302 ranlib=:
3303 enable dos_paths
3304 ;;
3305 win32|win64)
3306 disable symver
3307 if enabled shared; then
3308 # Link to the import library instead of the normal static library
3309 # for shared libs.
3310 LD_LIB='%.lib'
3311 # Cannot build both shared and static libs with MSVC or icl.
3312 disable static
3313 fi
3314 shlibdir_default="$bindir_default"
3315 SLIBPREF=""
3316 SLIBSUF=".dll"
3317 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3318 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3319 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3320 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3321 SLIB_INSTALL_LINKS=
3322 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3323 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3324 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3325 objformat="win32"
3326 ranlib=:
3327 enable dos_paths
3328 ;;
3329 cygwin*)
3330 target_os=cygwin
3331 shlibdir_default="$bindir_default"
3332 SLIBPREF="cyg"
3333 SLIBSUF=".dll"
3334 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3335 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3336 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3337 SLIB_INSTALL_LINKS=
3338 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3339 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3340 objformat="win32"
3341 enable dos_paths
3342 ;;
3343 *-dos|freedos|opendos)
3344 network_extralibs="-lsocket"
3345 objformat="coff"
3346 enable dos_paths
3347 add_cppflags -U__STRICT_ANSI__
3348 ;;
3349 linux)
3350 enable dv1394
3351 ;;
3352 irix*)
3353 target_os=irix
3354 ranlib="echo ignoring ranlib"
3355 ;;
3356 os/2*)
3357 ln_s="cp -f"
3358 objformat="aout"
3359 add_cppflags -D_GNU_SOURCE
3360 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3361 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3362 LIBSUF="_s.a"
3363 SLIBPREF=""
3364 SLIBSUF=".dll"
3365 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3366 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3367 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3368 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3369 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3370 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3371 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3372 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3373 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3374 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3375 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3376 enable dos_paths
3377 ;;
3378 gnu/kfreebsd)
3379 add_cppflags -D_BSD_SOURCE
3380 ;;
3381 gnu)
3382 ;;
3383 qnx)
3384 add_cppflags -D_QNX_SOURCE
3385 network_extralibs="-lsocket"
3386 ;;
3387 symbian)
3388 SLIBSUF=".dll"
3389 enable dos_paths
3390 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3391 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3392 add_ldflags -Wl,--target1-abs,--no-undefined \
3393 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3394 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3395 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3396 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3397 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3398 ;;
3399 osf1)
3400 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3401 ;;
3402 minix)
3403 ;;
3404 plan9)
3405 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3406 -D_REENTRANT_SOURCE \
3407 -D_RESEARCH_SOURCE \
3408 -DFD_SETSIZE=96 \
3409 -DHAVE_SOCK_OPTS
3410 add_compat strtod.o strtod=avpriv_strtod
3411 network_extralibs='-lbsd'
3412 exeobjs=compat/plan9/main.o
3413 disable avserver
3414 cp_f='cp'
3415 ;;
3416 none)
3417 ;;
3418 *)
3419 die "Unknown OS '$target_os'."
3420 ;;
3421 esac
3422
3423 # determine libc flavour
3424
3425 probe_libc(){
3426 pfx=$1
3427 pfx_no_=${pfx%_}
3428 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3429 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3430 eval ${pfx}libc_type=uclibc
3431 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3432 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3433 eval ${pfx}libc_type=glibc
3434 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3435 # MinGW headers can be installed on Cygwin, so check for newlib first.
3436 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3437 eval ${pfx}libc_type=newlib
3438 add_${pfx}cppflags -U__STRICT_ANSI__
3439 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3440 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3441 eval ${pfx}libc_type=mingw64
3442 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3443 eval test \$${pfx_no_}cc_type = "gcc" &&
3444 add_${pfx}cppflags -D__printf__=__gnu_printf__
3445 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3446 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3447 eval ${pfx}libc_type=mingw32
3448 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3449 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3450 die "ERROR: MinGW32 runtime version must be >= 3.15."
3451 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3452 eval test \$${pfx_no_}cc_type = "gcc" &&
3453 add_${pfx}cppflags -D__printf__=__gnu_printf__
3454 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3455 eval ${pfx}libc_type=msvcrt
3456 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3457 # 0x601 by default unless something else is set by the user.
3458 # This can easily lead to us detecting functions only present
3459 # in such new versions and producing binaries requiring windows 7.0.
3460 # Therefore explicitly set the default to XP unless the user has
3461 # set something else on the command line.
3462 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3463 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3464 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3465 eval ${pfx}libc_type=klibc
3466 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3467 eval ${pfx}libc_type=bionic
3468 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3469 eval ${pfx}libc_type=solaris
3470 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3471 fi
3472 }
3473
3474 probe_libc
3475 test -n "$libc_type" && enable libc_$libc_type
3476 probe_libc host_
3477 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3478
3479 case $libc_type in
3480 bionic)
3481 add_compat strtod.o strtod=avpriv_strtod
3482 ;;
3483 msvcrt)
3484 add_compat strtod.o strtod=avpriv_strtod
3485 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3486 _snprintf=avpriv_snprintf \
3487 vsnprintf=avpriv_vsnprintf
3488 ;;
3489 esac
3490
3491 # hacks for compiler/libc/os combinations
3492
3493 if enabled_all tms470 libc_glibc; then
3494 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3495 add_cppflags -D__USER_LABEL_PREFIX__=
3496 add_cppflags -D__builtin_memset=memset
3497 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3498 add_cflags -pds=48 # incompatible redefinition of macro
3499 fi
3500
3501 if enabled_all ccc libc_glibc; then
3502 add_ldflags -Wl,-z,now # calls to libots crash without this
3503 fi
3504
3505 esc(){
3506 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3507 }
3508
3509 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3510
3511 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3512
3513 set_default $PATHS_LIST
3514 set_default nm
3515
3516 # we need to build at least one lib type
3517 if ! enabled_any static shared; then
3518 cat <<EOF
3519 At least one library type must be built.
3520 Specify --enable-static to build the static libraries or --enable-shared to
3521 build the shared libraries as well. To only build the shared libraries specify
3522 --disable-static in addition to --enable-shared.
3523 EOF
3524 exit 1;
3525 fi
3526
3527 die_license_disabled() {
3528 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3529 }
3530
3531 die_license_disabled gpl libcdio
3532 die_license_disabled gpl libx264
3533 die_license_disabled gpl libxavs
3534 die_license_disabled gpl libxvid
3535 die_license_disabled gpl x11grab
3536
3537 die_license_disabled nonfree libfaac
3538 die_license_disabled nonfree libfdk_aac
3539 die_license_disabled nonfree openssl
3540
3541 die_license_disabled version3 libopencore_amrnb
3542 die_license_disabled version3 libopencore_amrwb
3543 die_license_disabled version3 libvo_aacenc
3544 die_license_disabled version3 libvo_amrwbenc
3545
3546 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3547
3548 disabled optimizations || check_cflags -fomit-frame-pointer
3549
3550 enable_weak_pic() {
3551 disabled pic && return
3552 enable pic
3553 add_cppflags -DPIC
3554 case "$target_os" in
3555 mingw*|cygwin*)
3556 ;;
3557 *)
3558 add_cflags -fPIC
3559 ;;
3560 esac
3561 add_asflags -fPIC
3562 }
3563
3564 enabled pic && enable_weak_pic
3565
3566 check_cc <<EOF || die "Symbol mangling check failed."
3567 int ff_extern;
3568 EOF
3569 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3570 extern_prefix=${sym%%ff_extern*}
3571
3572 check_cc <<EOF && enable_weak inline_asm
3573 void foo(void) { __asm__ volatile ("" ::); }
3574 EOF
3575
3576 _restrict=
3577 for restrict_keyword in restrict __restrict__ __restrict; do
3578 check_cc <<EOF && _restrict=$restrict_keyword && break
3579 void foo(char * $restrict_keyword p);
3580 EOF
3581 done
3582
3583 check_cc <<EOF && enable pragma_deprecated
3584 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3585 EOF
3586
3587 check_cc <<EOF && enable attribute_packed
3588 struct { int x; } __attribute__((packed)) x;
3589 EOF
3590
3591 check_cc <<EOF && enable attribute_may_alias
3592 union { int x; } __attribute__((may_alias)) x;
3593 EOF
3594
3595 check_cc <<EOF || die "endian test failed"
3596 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3597 EOF
3598 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3599
3600 check_inline_asm inline_asm_labels '"1:\n"'
3601
3602 if enabled aarch64; then
3603 # internal assembler in clang 3.3 does not support this instruction
3604 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3605 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3606
3607 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3608
3609 elif enabled alpha; then
3610
3611 check_cflags -mieee
3612
3613 elif enabled arm; then
3614
3615 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3616 enabled thumb && check_cflags -mthumb || check_cflags -marm
3617 nogas=die
3618
3619 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3620 enable vfp_args
3621 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3622 case "${cross_prefix:-$cc}" in
3623 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3624 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3625 __asm__ (".eabi_attribute 28, 1");
3626 int main(void) { return 0; }
3627 EOF
3628 esac
3629 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3630 fi
3631
3632 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3633 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3634 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3635 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3636 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3637 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3638
3639 [ $target_os = linux ] ||
3640 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3641 $ARCH_EXT_LIST_ARM
3642
3643 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3644 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3645
3646 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3647
3648 elif enabled mips; then
3649
3650 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3651
3652 elif enabled parisc; then
3653
3654 if enabled gcc; then
3655 case $($cc -dumpversion) in
3656 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3657 esac
3658 fi
3659
3660 elif enabled ppc; then
3661
3662 enable local_aligned_8 local_aligned_16
3663
3664 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3665 check_inline_asm ibm_asm '"add 0, 0, 0"'
3666 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3667 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3668
3669 # AltiVec flags: The FSF version of GCC differs from the Apple version
3670 if enabled altivec; then
3671 nogas=warn
3672 check_cflags -maltivec -mabi=altivec &&
3673 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3674 check_cflags -faltivec
3675
3676 # check if our compiler supports Motorola AltiVec C API
3677 check_cc <<EOF || disable altivec
3678 $inc_altivec_h
3679 int main(void) {
3680 vector signed int v1 = (vector signed int) { 0 };
3681 vector signed int v2 = (vector signed int) { 1 };
3682 v1 = vec_add(v1, v2);
3683 return 0;
3684 }
3685 EOF
3686
3687 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3688 fi
3689
3690 elif enabled sparc; then
3691
3692 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3693
3694 elif enabled x86; then
3695
3696 check_builtin rdtsc intrin.h "__rdtsc()"
3697 check_builtin mm_empty mmintrin.h "_mm_empty()"