arm: get_cabac inline asm
[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-libx265 enable HEVC encoding via x265 [no]
208 --enable-libxavs enable AVS encoding via xavs [no]
209 --enable-libxvid enable Xvid encoding via xvidcore,
210 native MPEG-4/Xvid encoder exists [no]
211 --enable-openssl enable openssl [no]
212 --enable-x11grab enable X11 grabbing [no]
213 --enable-zlib enable zlib [autodetect]
214
215 Advanced options (experts only):
216 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
217 --enable-cross-compile assume a cross-compiler is used
218 --sysroot=PATH root of cross-build tree
219 --sysinclude=PATH location of cross-build system headers
220 --target-os=OS compiler targets OS [$target_os]
221 --target-exec=CMD command to run executables on target
222 --target-path=DIR path to view of build directory on target
223 --target-samples=DIR path to samples directory on target
224 --toolchain=NAME set tool defaults according to NAME
225 --nm=NM use nm tool
226 --ar=AR use archive tool AR [$ar_default]
227 --as=AS use assembler AS [$as_default]
228 --cc=CC use C compiler CC [$cc_default]
229 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
230 --ld=LD use linker LD
231 --host-cc=HOSTCC use host C compiler HOSTCC
232 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
233 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
234 --host-ld=HOSTLD use host linker HOSTLD
235 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
236 --host-libs=HLIBS use libs HLIBS when linking for host
237 --host-os=OS compiler host OS [$target_os]
238 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
239 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
240 --extra-libs=ELIBS add ELIBS [$ELIBS]
241 --extra-version=STRING version string suffix []
242 --optflags=OPTFLAGS override optimization-related compiler flags
243 --build-suffix=SUFFIX library name suffix []
244 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
245 --arch=ARCH select architecture [$arch]
246 --cpu=CPU select the minimum required CPU (affects
247 instruction selection, may crash on older CPUs)
248 --enable-pic build position-independent code
249 --enable-sram allow use of on-chip SRAM
250 --enable-thumb compile for Thumb instruction set
251 --disable-symver disable symbol versioning
252 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
253 --disable-safe-bitstream-reader
254 disable buffer boundary checking in bitreaders
255 (faster, but may crash)
256 --enable-memalign-hack emulate memalign, interferes with memory debuggers
257 --enable-lto use link-time optimization
258
259 Optimization options (experts only):
260 --disable-asm disable all assembler optimizations
261 --disable-altivec disable AltiVec optimizations
262 --disable-amd3dnow disable 3DNow! optimizations
263 --disable-amd3dnowext disable 3DNow! extended optimizations
264 --disable-mmx disable MMX optimizations
265 --disable-mmxext disable MMXEXT optimizations
266 --disable-sse disable SSE optimizations
267 --disable-sse2 disable SSE2 optimizations
268 --disable-sse3 disable SSE3 optimizations
269 --disable-ssse3 disable SSSE3 optimizations
270 --disable-sse4 disable SSE4 optimizations
271 --disable-sse42 disable SSE4.2 optimizations
272 --disable-avx disable AVX optimizations
273 --disable-xop disable XOP optimizations
274 --disable-fma3 disable FMA3 optimizations
275 --disable-fma4 disable FMA4 optimizations
276 --disable-avx2 disable AVX2 optimizations
277 --disable-armv5te disable armv5te optimizations
278 --disable-armv6 disable armv6 optimizations
279 --disable-armv6t2 disable armv6t2 optimizations
280 --disable-vfp disable VFP optimizations
281 --disable-neon disable NEON optimizations
282 --disable-vis disable VIS optimizations
283 --disable-inline-asm disable use of inline assembler
284 --disable-yasm disable use of yasm assembler
285
286 Developer options (useful when working on Libav itself):
287 --disable-debug disable debugging symbols
288 --enable-debug=LEVEL set the debug level [$debuglevel]
289 --disable-optimizations disable compiler optimizations
290 --enable-extra-warnings enable more compiler warnings
291 --samples=PATH location of test samples for FATE, if not set use
292 \$LIBAV_SAMPLES at make invocation time.
293 --enable-neon-clobber-test check NEON registers for clobbering (should be
294 used only for debugging purposes)
295 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
296 should be used only for debugging purposes)
297 --enable-random randomly enable/disable components
298 --disable-random
299 --enable-random=LIST randomly enable/disable specific components or
300 --disable-random=LIST component groups. LIST is a comma-separated list
301 of NAME[:PROB] entries where NAME is a component
302 (group) and PROB the probability associated with
303 NAME (default 0.5).
304 --random-seed=VALUE seed value for --enable/disable-random
305
306 NOTE: Object files are built at the place where configure is launched.
307 EOF
308 exit 0
309 }
310
311 quotes='""'
312
313 log(){
314 echo "$@" >> $logfile
315 }
316
317 log_file(){
318 log BEGIN $1
319 pr -n -t $1 >> $logfile
320 log END $1
321 }
322
323 echolog(){
324 log "$@"
325 echo "$@"
326 }
327
328 warn(){
329 log "WARNING: $*"
330 WARNINGS="${WARNINGS}WARNING: $*\n"
331 }
332
333 die(){
334 echolog "$@"
335 cat <<EOF
336
337 If you think configure made a mistake, make sure you are using the latest
338 version from Git. If the latest version fails, report the problem to the
339 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
340 EOF
341 if disabled logging; then
342 cat <<EOF
343 Rerun configure with logging enabled (do not use --disable-logging), and
344 include the log this produces with your report.
345 EOF
346 else
347 cat <<EOF
348 Include the log file "$logfile" produced by configure as this will help
349 solving the problem.
350 EOF
351 fi
352 exit 1
353 }
354
355 # Avoid locale weirdness, besides we really just want to translate ASCII.
356 toupper(){
357 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
358 }
359
360 tolower(){
361 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
362 }
363
364 c_escape(){
365 echo "$*" | sed 's/["\\]/\\\0/g'
366 }
367
368 sh_quote(){
369 v=$(echo "$1" | sed "s/'/'\\\\''/g")
370 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
371 echo "$v"
372 }
373
374 cleanws(){
375 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
376 }
377
378 filter(){
379 pat=$1
380 shift
381 for v; do
382 eval "case $v in $pat) echo $v ;; esac"
383 done
384 }
385
386 filter_out(){
387 pat=$1
388 shift
389 for v; do
390 eval "case $v in $pat) ;; *) echo $v ;; esac"
391 done
392 }
393
394 map(){
395 m=$1
396 shift
397 for v; do eval $m; done
398 }
399
400 add_suffix(){
401 suffix=$1
402 shift
403 for v; do echo ${v}${suffix}; done
404 }
405
406 set_all(){
407 value=$1
408 shift
409 for var in $*; do
410 eval $var=$value
411 done
412 }
413
414 set_weak(){
415 value=$1
416 shift
417 for var; do
418 eval : \${$var:=$value}
419 done
420 }
421
422 sanitize_var_name(){
423 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
424 }
425
426 set_safe(){
427 var=$1
428 shift
429 eval $(sanitize_var_name "$var")='$*'
430 }
431
432 get_safe(){
433 eval echo \$$(sanitize_var_name "$1")
434 }
435
436 pushvar(){
437 for pvar in $*; do
438 eval level=\${${pvar}_level:=0}
439 eval ${pvar}_${level}="\$$pvar"
440 eval ${pvar}_level=$(($level+1))
441 done
442 }
443
444 popvar(){
445 for pvar in $*; do
446 eval level=\${${pvar}_level:-0}
447 test $level = 0 && continue
448 eval level=$(($level-1))
449 eval $pvar="\${${pvar}_${level}}"
450 eval ${pvar}_level=$level
451 eval unset ${pvar}_${level}
452 done
453 }
454
455 enable(){
456 set_all yes $*
457 }
458
459 disable(){
460 set_all no $*
461 }
462
463 enable_weak(){
464 set_weak yes $*
465 }
466
467 disable_weak(){
468 set_weak no $*
469 }
470
471 enable_safe(){
472 for var; do
473 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474 done
475 }
476
477 disable_safe(){
478 for var; do
479 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
480 done
481 }
482
483 do_enable_deep(){
484 for var; do
485 enabled $var && continue
486 eval sel="\$${var}_select"
487 eval sgs="\$${var}_suggest"
488 pushvar var sgs
489 enable_deep $sel
490 popvar sgs
491 enable_deep_weak $sgs
492 popvar var
493 done
494 }
495
496 enable_deep(){
497 do_enable_deep $*
498 enable $*
499 }
500
501 enable_deep_weak(){
502 for var; do
503 disabled $var && continue
504 pushvar var
505 do_enable_deep $var
506 popvar var
507 enable_weak $var
508 done
509 }
510
511 enabled(){
512 test "${1#!}" = "$1" && op== || op=!=
513 eval test "x\$${1#!}" $op "xyes"
514 }
515
516 disabled(){
517 test "${1#!}" = "$1" && op== || op=!=
518 eval test "x\$${1#!}" $op "xno"
519 }
520
521 enabled_all(){
522 for opt; do
523 enabled $opt || return 1
524 done
525 }
526
527 disabled_all(){
528 for opt; do
529 disabled $opt || return 1
530 done
531 }
532
533 enabled_any(){
534 for opt; do
535 enabled $opt && return 0
536 done
537 }
538
539 disabled_any(){
540 for opt; do
541 disabled $opt && return 0
542 done
543 return 1
544 }
545
546 set_default(){
547 for opt; do
548 eval : \${$opt:=\$${opt}_default}
549 done
550 }
551
552 is_in(){
553 value=$1
554 shift
555 for var in $*; do
556 [ $var = $value ] && return 0
557 done
558 return 1
559 }
560
561 do_check_deps(){
562 for cfg; do
563 cfg="${cfg#!}"
564 enabled ${cfg}_checking && die "Circular dependency for $cfg."
565 disabled ${cfg}_checking && continue
566 enable ${cfg}_checking
567 append allopts $cfg
568
569 eval dep_all="\$${cfg}_deps"
570 eval dep_any="\$${cfg}_deps_any"
571 eval dep_sel="\$${cfg}_select"
572 eval dep_sgs="\$${cfg}_suggest"
573 eval dep_ifa="\$${cfg}_if"
574 eval dep_ifn="\$${cfg}_if_any"
575
576 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
578 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
579
580 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
581 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
582 enabled_all $dep_all || disable $cfg
583 enabled_any $dep_any || disable $cfg
584 disabled_any $dep_sel && disable $cfg
585
586 if enabled $cfg; then
587 enable_deep $dep_sel
588 enable_deep_weak $dep_sgs
589 fi
590
591 disable ${cfg}_checking
592 done
593 }
594
595 check_deps(){
596 unset allopts
597
598 do_check_deps "$@"
599
600 for cfg in $allopts; do
601 enabled $cfg || continue
602 eval dep_extralibs="\$${cfg}_extralibs"
603 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
604 done
605 }
606
607 print_config(){
608 pfx=$1
609 files=$2
610 shift 2
611 map 'eval echo "$v \${$v:-no}"' "$@" |
612 awk "BEGIN { split(\"$files\", files) }
613 {
614 c = \"$pfx\" toupper(\$1);
615 v = \$2;
616 sub(/yes/, 1, v);
617 sub(/no/, 0, v);
618 for (f in files) {
619 file = files[f];
620 if (file ~ /\\.h\$/) {
621 printf(\"#define %s %d\\n\", c, v) >>file;
622 } else if (file ~ /\\.asm\$/) {
623 printf(\"%%define %s %d\\n\", c, v) >>file;
624 } else if (file ~ /\\.mak\$/) {
625 n = -v ? \"\" : \"!\";
626 printf(\"%s%s=yes\\n\", n, c) >>file;
627 }
628 }
629 }"
630 }
631
632 print_enabled(){
633 suf=$1
634 shift
635 for v; do
636 enabled $v && printf "%s\n" ${v%$suf};
637 done
638 }
639
640 append(){
641 var=$1
642 shift
643 eval "$var=\"\$$var $*\""
644 }
645
646 prepend(){
647 var=$1
648 shift
649 eval "$var=\"$* \$$var\""
650 }
651
652 add_cppflags(){
653 append CPPFLAGS "$@"
654 }
655
656 add_cflags(){
657 append CFLAGS $($cflags_filter "$@")
658 }
659
660 add_asflags(){
661 append ASFLAGS $($asflags_filter "$@")
662 }
663
664 add_ldflags(){
665 append LDFLAGS $($ldflags_filter "$@")
666 }
667
668 add_stripflags(){
669 append STRIPFLAGS "$@"
670 }
671
672 add_extralibs(){
673 prepend extralibs $($ldflags_filter "$@")
674 }
675
676 add_host_cppflags(){
677 append host_cppflags "$@"
678 }
679
680 add_host_cflags(){
681 append host_cflags $($host_cflags_filter "$@")
682 }
683
684 add_host_ldflags(){
685 append host_ldflags $($host_ldflags_filter "$@")
686 }
687
688 add_compat(){
689 append compat_objs $1
690 shift
691 map 'add_cppflags -D$v' "$@"
692 }
693
694 check_cmd(){
695 log "$@"
696 "$@" >> $logfile 2>&1
697 }
698
699 cc_o(){
700 eval printf '%s\\n' $CC_O
701 }
702
703 cc_e(){
704 eval printf '%s\\n' $CC_E
705 }
706
707 check_cc(){
708 log check_cc "$@"
709 cat > $TMPC
710 log_file $TMPC
711 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
712 }
713
714 check_cpp(){
715 log check_cpp "$@"
716 cat > $TMPC
717 log_file $TMPC
718 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
719 }
720
721 as_o(){
722 eval printf '%s\\n' $AS_O
723 }
724
725 check_as(){
726 log check_as "$@"
727 cat > $TMPS
728 log_file $TMPS
729 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
730 }
731
732 check_inline_asm(){
733 log check_inline_asm "$@"
734 name="$1"
735 code="$2"
736 shift 2
737 disable $name
738 check_cc "$@" <<EOF && enable $name
739 void foo(void){ __asm__ volatile($code); }
740 EOF
741 }
742
743 check_insn(){
744 log check_insn "$@"
745 check_inline_asm ${1}_inline "\"$2\""
746 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
747 }
748
749 check_yasm(){
750 log check_yasm "$@"
751 echo "$1" > $TMPS
752 log_file $TMPS
753 shift 1
754 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
755 }
756
757 ld_o(){
758 eval printf '%s\\n' $LD_O
759 }
760
761 check_ld(){
762 log check_ld "$@"
763 flags=$(filter_out '-l*' "$@")
764 libs=$(filter '-l*' "$@")
765 check_cc $($cflags_filter $flags) || return
766 flags=$($ldflags_filter $flags)
767 libs=$($ldflags_filter $libs)
768 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
769 }
770
771 print_include(){
772 hdr=$1
773 test "${hdr%.h}" = "${hdr}" &&
774 echo "#include $hdr" ||
775 echo "#include <$hdr>"
776 }
777
778 check_code(){
779 log check_code "$@"
780 check=$1
781 headers=$2
782 code=$3
783 shift 3
784 {
785 for hdr in $headers; do
786 print_include $hdr
787 done
788 echo "int main(void) { $code; return 0; }"
789 } | check_$check "$@"
790 }
791
792 check_cppflags(){
793 log check_cppflags "$@"
794 check_cc "$@" <<EOF && append CPPFLAGS "$@"
795 int x;
796 EOF
797 }
798
799 test_cflags(){
800 log test_cflags "$@"
801 set -- $($cflags_filter "$@")
802 check_cc "$@" <<EOF
803 int x;
804 EOF
805 }
806
807 check_cflags(){
808 log check_cflags "$@"
809 test_cflags "$@" && add_cflags "$@"
810 }
811
812 test_ldflags(){
813 log test_ldflags "$@"
814 check_ld "$@" <<EOF
815 int main(void){ return 0; }
816 EOF
817 }
818
819 check_ldflags(){
820 log check_ldflags "$@"
821 test_ldflags "$@" && add_ldflags "$@"
822 }
823
824 test_stripflags(){
825 log test_stripflags "$@"
826 # call check_cc to get a fresh TMPO
827 check_cc <<EOF
828 int main(void) { return 0; }
829 EOF
830 check_cmd $strip $STRIPFLAGS "$@" $TMPO
831 }
832
833 check_stripflags(){
834 log check_stripflags "$@"
835 test_stripflags "$@" && add_stripflags "$@"
836 }
837
838 check_header(){
839 log check_header "$@"
840 header=$1
841 shift
842 disable_safe $header
843 check_cpp "$@" <<EOF && enable_safe $header
844 #include <$header>
845 int x;
846 EOF
847 }
848
849 check_func(){
850 log check_func "$@"
851 func=$1
852 shift
853 disable $func
854 check_ld "$@" <<EOF && enable $func
855 extern int $func();
856 int main(void){ $func(); }
857 EOF
858 }
859
860 check_mathfunc(){
861 log check_mathfunc "$@"
862 func=$1
863 narg=$2
864 shift 2
865 test $narg = 2 && args="f, g" || args="f"
866 disable $func
867 check_ld "$@" <<EOF && enable $func
868 #include <math.h>
869 float foo(float f, float g) { return $func($args); }
870 int main(void){ return 0; }
871 EOF
872 }
873
874 check_func_headers(){
875 log check_func_headers "$@"
876 headers=$1
877 funcs=$2
878 shift 2
879 {
880 for hdr in $headers; do
881 print_include $hdr
882 done
883 for func in $funcs; do
884 echo "long check_$func(void) { return (long) $func; }"
885 done
886 echo "int main(void) { return 0; }"
887 } | check_ld "$@" && enable $funcs && enable_safe $headers
888 }
889
890 check_cpp_condition(){
891 log check_cpp_condition "$@"
892 header=$1
893 condition=$2
894 shift 2
895 check_cpp "$@" <<EOF
896 #include <$header>
897 #if !($condition)
898 #error "unsatisfied condition: $condition"
899 #endif
900 EOF
901 }
902
903 check_lib(){
904 log check_lib "$@"
905 header="$1"
906 func="$2"
907 shift 2
908 check_header $header && check_func $func "$@" && add_extralibs "$@"
909 }
910
911 check_lib2(){
912 log check_lib2 "$@"
913 headers="$1"
914 funcs="$2"
915 shift 2
916 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 }
918
919 check_pkg_config(){
920 log check_pkg_config "$@"
921 pkg="$1"
922 headers="$2"
923 funcs="$3"
924 shift 3
925 check_cmd $pkg_config --exists --print-errors $pkg || return
926 pkg_cflags=$($pkg_config --cflags $pkg)
927 pkg_libs=$($pkg_config --libs $pkg)
928 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
929 set_safe ${pkg}_cflags $pkg_cflags &&
930 set_safe ${pkg}_libs $pkg_libs
931 }
932
933 check_exec(){
934 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
935 }
936
937 check_exec_crash(){
938 code=$(cat)
939
940 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
941 # are safe but may not be available everywhere. Thus we use
942 # raise(SIGTERM) instead. The check is run in a subshell so we
943 # can redirect the "Terminated" message from the shell. SIGBUS
944 # is not defined by standard C so it is used conditionally.
945
946 (check_exec "$@") >> $logfile 2>&1 <<EOF
947 #include <signal.h>
948 static void sighandler(int sig){
949 raise(SIGTERM);
950 }
951 int foo(void){
952 $code
953 }
954 int (*func_ptr)(void) = foo;
955 int main(void){
956 signal(SIGILL, sighandler);
957 signal(SIGFPE, sighandler);
958 signal(SIGSEGV, sighandler);
959 #ifdef SIGBUS
960 signal(SIGBUS, sighandler);
961 #endif
962 return func_ptr();
963 }
964 EOF
965 }
966
967 check_type(){
968 log check_type "$@"
969 headers=$1
970 type=$2
971 shift 2
972 disable_safe "$type"
973 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
974 }
975
976 check_struct(){
977 log check_struct "$@"
978 headers=$1
979 struct=$2
980 member=$3
981 shift 3
982 disable_safe "${struct}_${member}"
983 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
984 enable_safe "${struct}_${member}"
985 }
986
987 check_builtin(){
988 log check_builtin "$@"
989 name=$1
990 headers=$2
991 builtin=$3
992 shift 3
993 disable "$name"
994 check_code ld "$headers" "$builtin" "$@" && enable "$name"
995 }
996
997 require(){
998 name="$1"
999 header="$2"
1000 func="$3"
1001 shift 3
1002 check_lib $header $func "$@" || die "ERROR: $name not found"
1003 }
1004
1005 require2(){
1006 name="$1"
1007 headers="$2"
1008 func="$3"
1009 shift 3
1010 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1011 }
1012
1013 require_pkg_config(){
1014 pkg="$1"
1015 check_pkg_config "$@" || die "ERROR: $pkg not found"
1016 add_cflags $(get_safe ${pkg}_cflags)
1017 add_extralibs $(get_safe ${pkg}_libs)
1018 }
1019
1020 hostcc_e(){
1021 eval printf '%s\\n' $HOSTCC_E
1022 }
1023
1024 hostcc_o(){
1025 eval printf '%s\\n' $HOSTCC_O
1026 }
1027
1028 check_host_cc(){
1029 log check_host_cc "$@"
1030 cat > $TMPC
1031 log_file $TMPC
1032 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1033 }
1034
1035 check_host_cpp(){
1036 log check_host_cpp "$@"
1037 cat > $TMPC
1038 log_file $TMPC
1039 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1040 }
1041
1042 check_host_cppflags(){
1043 log check_host_cppflags "$@"
1044 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1045 int x;
1046 EOF
1047 }
1048
1049 check_host_cflags(){
1050 log check_host_cflags "$@"
1051 set -- $($host_cflags_filter "$@")
1052 check_host_cc "$@" <<EOF && append host_cflags "$@"
1053 int x;
1054 EOF
1055 }
1056
1057 check_host_cpp_condition(){
1058 log check_host_cpp_condition "$@"
1059 header=$1
1060 condition=$2
1061 shift 2
1062 check_host_cpp "$@" <<EOF
1063 #include <$header>
1064 #if !($condition)
1065 #error "unsatisfied condition: $condition"
1066 #endif
1067 EOF
1068 }
1069
1070 apply(){
1071 file=$1
1072 shift
1073 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1074 }
1075
1076 cp_if_changed(){
1077 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1078 mkdir -p "$(dirname $2)"
1079 $cp_f "$1" "$2"
1080 }
1081
1082 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1083 # system-dependent things.
1084
1085 COMPONENT_LIST="
1086 bsfs
1087 decoders
1088 demuxers
1089 encoders
1090 filters
1091 hwaccels
1092 indevs
1093 muxers
1094 outdevs
1095 parsers
1096 protocols
1097 "
1098
1099 EXAMPLE_LIST="
1100 avcodec_example
1101 filter_audio_example
1102 metadata_example
1103 output_example
1104 transcode_aac_example
1105 "
1106
1107 EXTERNAL_LIBRARY_LIST="
1108 avisynth
1109 bzlib
1110 frei0r
1111 gnutls
1112 libcdio
1113 libdc1394
1114 libfaac
1115 libfdk_aac
1116 libfreetype
1117 libgsm
1118 libilbc
1119 libmp3lame
1120 libopencore_amrnb
1121 libopencore_amrwb
1122 libopencv
1123 libopenjpeg
1124 libopus
1125 libpulse
1126 librtmp
1127 libschroedinger
1128 libspeex
1129 libtheora
1130 libvo_aacenc
1131 libvo_amrwbenc
1132 libvorbis
1133 libvpx
1134 libwavpack
1135 libwebp
1136 libx264
1137 libx265
1138 libxavs
1139 libxvid
1140 openssl
1141 x11grab
1142 zlib
1143 "
1144
1145 HWACCEL_LIST="
1146 dxva2
1147 vaapi
1148 vda
1149 vdpau
1150 "
1151 LIBRARY_LIST="
1152 avcodec
1153 avdevice
1154 avfilter
1155 avformat
1156 avresample
1157 avutil
1158 swscale
1159 "
1160
1161 PROGRAM_LIST="
1162 avconv
1163 avplay
1164 avprobe
1165 avserver
1166 "
1167
1168 CONFIG_LIST="
1169 $COMPONENT_LIST
1170 $EXAMPLE_LIST
1171 $EXTERNAL_LIBRARY_LIST
1172 $HWACCEL_LIST
1173 $LIBRARY_LIST
1174 $PROGRAM_LIST
1175 dct
1176 doc
1177 error_resilience
1178 fft
1179 gpl
1180 gray
1181 hardcoded_tables
1182 lsp
1183 lzo
1184 mdct
1185 memalign_hack
1186 neon_clobber_test
1187 network
1188 nonfree
1189 pod2man
1190 pic
1191 rdft
1192 runtime_cpudetect
1193 safe_bitstream_reader
1194 shared
1195 small
1196 sram
1197 static
1198 swscale_alpha
1199 texi2html
1200 thumb
1201 version3
1202 xmm_clobber_test
1203 "
1204
1205 THREADS_LIST='
1206 pthreads
1207 w32threads
1208 '
1209
1210 ATOMICS_LIST='
1211 atomics_gcc
1212 atomics_suncc
1213 atomics_win32
1214 '
1215
1216 ARCH_LIST='
1217 aarch64
1218 alpha
1219 arm
1220 avr32
1221 avr32_ap
1222 avr32_uc
1223 bfin
1224 ia64
1225 m68k
1226 mips
1227 mips64
1228 parisc
1229 ppc
1230 ppc64
1231 s390
1232 sh4
1233 sparc
1234 sparc64
1235 tilegx
1236 tilepro
1237 tomi
1238 x86
1239 x86_32
1240 x86_64
1241 '
1242
1243 ARCH_EXT_LIST_ARM='
1244 armv5te
1245 armv6
1246 armv6t2
1247 neon
1248 vfp
1249 vfpv3
1250 '
1251
1252 ARCH_EXT_LIST_X86_SIMD='
1253 amd3dnow
1254 amd3dnowext
1255 avx
1256 avx2
1257 xop
1258 fma3
1259 fma4
1260 mmx
1261 mmxext
1262 sse
1263 sse2
1264 sse3
1265 sse4
1266 sse42
1267 ssse3
1268 '
1269
1270 ARCH_EXT_LIST_X86="
1271 $ARCH_EXT_LIST_X86_SIMD
1272 cpunop
1273 i686
1274 "
1275
1276 ARCH_EXT_LIST="
1277 $ARCH_EXT_LIST_ARM
1278 $ARCH_EXT_LIST_X86
1279 altivec
1280 ppc4xx
1281 vis
1282 "
1283
1284 HAVE_LIST_CMDLINE='
1285 inline_asm
1286 symver
1287 yasm
1288 '
1289
1290 HAVE_LIST_PUB='
1291 bigendian
1292 fast_unaligned
1293 '
1294
1295 MATH_FUNCS="
1296 atanf
1297 atan2f
1298 cbrtf
1299 cosf
1300 exp2
1301 exp2f
1302 expf
1303 isinf
1304 isnan
1305 ldexpf
1306 llrint
1307 llrintf
1308 log2
1309 log2f
1310 log10f
1311 lrint
1312 lrintf
1313 powf
1314 rint
1315 round
1316 roundf
1317 sinf
1318 trunc
1319 truncf
1320 "
1321
1322 HAVE_LIST="
1323 $ARCH_EXT_LIST
1324 $(add_suffix _external $ARCH_EXT_LIST)
1325 $(add_suffix _inline $ARCH_EXT_LIST)
1326 $HAVE_LIST_CMDLINE
1327 $HAVE_LIST_PUB
1328 $THREADS_LIST
1329 $ATOMICS_LIST
1330 $MATH_FUNCS
1331 aligned_malloc
1332 aligned_stack
1333 alsa_asoundlib_h
1334 altivec_h
1335 arpa_inet_h
1336 asm_mod_q
1337 atomic_cas_ptr
1338 atomics_native
1339 attribute_may_alias
1340 attribute_packed
1341 cdio_paranoia_h
1342 cdio_paranoia_paranoia_h
1343 closesocket
1344 CommandLineToArgvW
1345 CryptGenRandom
1346 dcbzl
1347 dev_bktr_ioctl_bt848_h
1348 dev_bktr_ioctl_meteor_h
1349 dev_ic_bt8xx_h
1350 dev_video_bktr_ioctl_bt848_h
1351 dev_video_meteor_ioctl_meteor_h
1352 direct_h
1353 dlfcn_h
1354 dlopen
1355 dos_paths
1356 dxva_h
1357 ebp_available
1358 ebx_available
1359 fast_64bit
1360 fast_clz
1361 fast_cmov
1362 fcntl
1363 fork
1364 getaddrinfo
1365 gethrtime
1366 getopt
1367 GetProcessAffinityMask
1368 GetProcessMemoryInfo
1369 GetProcessTimes
1370 GetSystemTimeAsFileTime
1371 getrusage
1372 getservbyport
1373 gettimeofday
1374 gnu_as
1375 gsm_h
1376 ibm_asm
1377 inet_aton
1378 io_h
1379 inline_asm_labels
1380 isatty
1381 jack_port_get_latency_range
1382 ldbrx
1383 libc_msvcrt
1384 libdc1394_1
1385 libdc1394_2
1386 local_aligned_16
1387 local_aligned_8
1388 localtime_r
1389 loongson
1390 machine_ioctl_bt848_h
1391 machine_ioctl_meteor_h
1392 machine_rw_barrier
1393 malloc_h
1394 MapViewOfFile
1395 memalign
1396 MemoryBarrier
1397 mkstemp
1398 mm_empty
1399 mmap
1400 mprotect
1401 nanosleep
1402 poll_h
1403 posix_memalign
1404 pragma_deprecated
1405 rdtsc
1406 sched_getaffinity
1407 sdl
1408 SetConsoleTextAttribute
1409 setmode
1410 setrlimit
1411 Sleep
1412 sndio_h
1413 socklen_t
1414 soundcard_h
1415 strerror_r
1416 strptime
1417 struct_addrinfo
1418 struct_group_source_req
1419 struct_ip_mreq_source
1420 struct_ipv6_mreq
1421 struct_pollfd
1422 struct_rusage_ru_maxrss
1423 struct_sockaddr_in6
1424 struct_sockaddr_sa_len
1425 struct_sockaddr_storage
1426 struct_v4l2_frmivalenum_discrete
1427 symver_asm_label
1428 symver_gnu_asm
1429 sync_val_compare_and_swap
1430 sysconf
1431 sysctl
1432 sys_mman_h
1433 sys_param_h
1434 sys_resource_h
1435 sys_select_h
1436 sys_soundcard_h
1437 sys_time_h
1438 sys_un_h
1439 sys_videoio_h
1440 threads
1441 unistd_h
1442 usleep
1443 vdpau_x11
1444 vfp_args
1445 VirtualAlloc
1446 windows_h
1447 winsock2_h
1448 xform_asm
1449 xlib
1450 xmm_clobbers
1451 "
1452
1453 # options emitted with CONFIG_ prefix but not available on the command line
1454 CONFIG_EXTRA="
1455 aandcttables
1456 ac3dsp
1457 audio_frame_queue
1458 dsputil
1459 gcrypt
1460 golomb
1461 gplv3
1462 h263dsp
1463 h264chroma
1464 h264dsp
1465 h264pred
1466 h264qpel
1467 hpeldsp
1468 huffman
1469 intrax8
1470 lgplv3
1471 lpc
1472 mpegaudio
1473 mpegaudiodsp
1474 mpegvideo
1475 mpegvideoenc
1476 nettle
1477 rangecoder
1478 riffdec
1479 riffenc
1480 rtpdec
1481 rtpenc_chain
1482 sinewin
1483 videodsp
1484 vp3dsp
1485 "
1486
1487 CMDLINE_SELECT="
1488 $ARCH_EXT_LIST
1489 $CONFIG_LIST
1490 $HAVE_LIST_CMDLINE
1491 $THREADS_LIST
1492 asm
1493 cross_compile
1494 debug
1495 extra_warnings
1496 logging
1497 lto
1498 optimizations
1499 "
1500
1501 PATHS_LIST='
1502 bindir
1503 datadir
1504 docdir
1505 incdir
1506 libdir
1507 mandir
1508 prefix
1509 shlibdir
1510 '
1511
1512 CMDLINE_SET="
1513 $PATHS_LIST
1514 ar
1515 arch
1516 as
1517 build_suffix
1518 cc
1519 cpu
1520 cross_prefix
1521 dep_cc
1522 extra_version
1523 host_cc
1524 host_cflags
1525 host_ld
1526 host_ldflags
1527 host_libs
1528 host_os
1529 ld
1530 logfile
1531 malloc_prefix
1532 nm
1533 optflags
1534 pkg_config
1535 random_seed
1536 samples
1537 sysinclude
1538 sysroot
1539 target_exec
1540 target_os
1541 target_path
1542 target_samples
1543 toolchain
1544 "
1545
1546 CMDLINE_APPEND="
1547 extra_cflags
1548 host_cppflags
1549 "
1550
1551 # code dependency declarations
1552
1553 # architecture extensions
1554
1555 armv5te_deps="arm"
1556 armv6_deps="arm"
1557 armv6t2_deps="arm"
1558 neon_deps_any="aarch64 arm"
1559 vfp_deps_any="aarch64 arm"
1560 vfpv3_deps="vfp"
1561
1562 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1563
1564 altivec_deps="ppc"
1565 ppc4xx_deps="ppc"
1566
1567 vis_deps="sparc"
1568
1569 cpunop_deps="i686"
1570 x86_64_select="i686"
1571 x86_64_suggest="fast_cmov"
1572
1573 amd3dnow_deps="mmx"
1574 amd3dnowext_deps="amd3dnow"
1575 i686_deps="x86"
1576 mmx_deps="x86"
1577 mmxext_deps="mmx"
1578 sse_deps="mmxext"
1579 sse2_deps="sse"
1580 sse3_deps="sse2"
1581 ssse3_deps="sse3"
1582 sse4_deps="ssse3"
1583 sse42_deps="sse4"
1584 avx_deps="sse42"
1585 xop_deps="avx"
1586 fma3_deps="avx"
1587 fma4_deps="avx"
1588 avx2_deps="avx"
1589
1590 mmx_external_deps="yasm"
1591 mmx_inline_deps="inline_asm"
1592 mmx_suggest="mmx_external mmx_inline"
1593
1594 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1595 eval dep=\$${ext}_deps
1596 eval ${ext}_external_deps='"${dep}_external"'
1597 eval ${ext}_inline_deps='"${dep}_inline"'
1598 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1599 done
1600
1601 aligned_stack_if_any="aarch64 ppc x86"
1602 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1603 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1604 fast_unaligned_if_any="aarch64 ppc x86"
1605
1606 need_memalign="altivec neon sse"
1607
1608 # system capabilities
1609 log2_deps="!libc_msvcrt"
1610
1611 symver_if_any="symver_asm_label symver_gnu_asm"
1612
1613 # threading support
1614 atomics_gcc_if="sync_val_compare_and_swap"
1615 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1616 atomics_win32_if="MemoryBarrier"
1617 atomics_native_if_any="$ATOMICS_LIST"
1618 w32threads_deps="atomics_native"
1619 threads_if_any="$THREADS_LIST"
1620
1621 # subsystems
1622 dct_select="rdft"
1623 error_resilience_select="dsputil"
1624 lpc_select="dsputil"
1625 mdct_select="fft"
1626 rdft_select="fft"
1627 mpegaudio_select="mpegaudiodsp"
1628 mpegaudiodsp_select="dct"
1629 mpegvideo_select="dsputil hpeldsp videodsp"
1630 mpegvideoenc_select="mpegvideo"
1631
1632 # decoders / encoders
1633 aac_decoder_select="mdct sinewin"
1634 aac_encoder_select="audio_frame_queue mdct sinewin"
1635 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1636 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1637 ac3_encoder_select="mdct ac3dsp dsputil"
1638 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1639 aic_decoder_select="dsputil golomb"
1640 alac_encoder_select="lpc"
1641 als_decoder_select="dsputil"
1642 amrnb_decoder_select="lsp"
1643 amrwb_decoder_select="lsp"
1644 amv_decoder_select="sp5x_decoder"
1645 ape_decoder_select="dsputil"
1646 asv1_decoder_select="dsputil"
1647 asv1_encoder_select="dsputil"
1648 asv2_decoder_select="dsputil"
1649 asv2_encoder_select="dsputil"
1650 atrac1_decoder_select="mdct sinewin"
1651 atrac3_decoder_select="mdct"
1652 atrac3p_decoder_select="mdct sinewin"
1653 bink_decoder_select="dsputil hpeldsp"
1654 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1655 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1656 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1657 cllc_decoder_select="dsputil"
1658 comfortnoise_encoder_select="lpc"
1659 cook_decoder_select="dsputil mdct sinewin"
1660 cscd_decoder_select="lzo"
1661 cscd_decoder_suggest="zlib"
1662 dca_decoder_select="mdct"
1663 dnxhd_decoder_select="dsputil"
1664 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1665 dvvideo_decoder_select="dsputil"
1666 dvvideo_encoder_select="dsputil"
1667 dxa_decoder_deps="zlib"
1668 eac3_decoder_select="ac3_decoder"
1669 eac3_encoder_select="ac3_encoder"
1670 eamad_decoder_select="aandcttables dsputil mpegvideo"
1671 eatgq_decoder_select="aandcttables dsputil"
1672 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1673 ffv1_decoder_select="dsputil golomb rangecoder"
1674 ffv1_encoder_select="dsputil rangecoder"
1675 ffvhuff_decoder_select="huffyuv_decoder"
1676 ffvhuff_encoder_select="huffyuv_encoder"
1677 fic_decoder_select="dsputil golomb"
1678 flac_decoder_select="golomb"
1679 flac_encoder_select="dsputil golomb lpc"
1680 flashsv_decoder_deps="zlib"
1681 flashsv_encoder_deps="zlib"
1682 flashsv2_decoder_deps="zlib"
1683 flv_decoder_select="h263_decoder"
1684 flv_encoder_select="h263_encoder"
1685 fourxm_decoder_select="dsputil"
1686 fraps_decoder_select="dsputil huffman"
1687 g2m_decoder_deps="zlib"
1688 g2m_decoder_select="dsputil"
1689 h261_decoder_select="error_resilience mpegvideo"
1690 h261_encoder_select="aandcttables mpegvideoenc"
1691 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1692 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1693 h263i_decoder_select="h263_decoder"
1694 h263p_encoder_select="h263_encoder"
1695 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1696 h264_decoder_suggest="error_resilience"
1697 hevc_decoder_select="dsputil golomb videodsp"
1698 huffyuv_decoder_select="dsputil"
1699 huffyuv_encoder_select="dsputil huffman"
1700 iac_decoder_select="imc_decoder"
1701 imc_decoder_select="dsputil fft mdct sinewin"
1702 indeo3_decoder_select="hpeldsp"
1703 interplay_video_decoder_select="hpeldsp"
1704 jpegls_decoder_select="golomb mjpeg_decoder"
1705 jpegls_encoder_select="golomb"
1706 jv_decoder_select="dsputil"
1707 lagarith_decoder_select="dsputil"
1708 ljpeg_encoder_select="aandcttables mpegvideoenc"
1709 loco_decoder_select="golomb"
1710 mdec_decoder_select="dsputil error_resilience mpegvideo"
1711 metasound_decoder_select="lsp mdct sinewin"
1712 mimic_decoder_select="dsputil hpeldsp"
1713 mjpeg_decoder_select="dsputil hpeldsp"
1714 mjpegb_decoder_select="mjpeg_decoder"
1715 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1716 mlp_decoder_select="dsputil mlp_parser"
1717 motionpixels_decoder_select="dsputil"
1718 mp1_decoder_select="mpegaudio"
1719 mp1float_decoder_select="mpegaudio"
1720 mp2_decoder_select="mpegaudio"
1721 mp2float_decoder_select="mpegaudio"
1722 mp3_decoder_select="mpegaudio"
1723 mp3adu_decoder_select="mpegaudio"
1724 mp3adufloat_decoder_select="mpegaudio"
1725 mp3float_decoder_select="mpegaudio"
1726 mp3on4_decoder_select="mpegaudio"
1727 mp3on4float_decoder_select="mpegaudio"
1728 mpc7_decoder_select="dsputil mpegaudiodsp"
1729 mpc8_decoder_select="dsputil mpegaudiodsp"
1730 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1731 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1732 mpeg1video_decoder_select="error_resilience mpegvideo"
1733 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1734 mpeg2video_decoder_select="error_resilience mpegvideo"
1735 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1736 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1737 mpeg4_encoder_select="h263_encoder"
1738 msmpeg4v1_decoder_select="h263_decoder"
1739 msmpeg4v2_decoder_select="h263_decoder"
1740 msmpeg4v2_encoder_select="h263_encoder"
1741 msmpeg4v3_decoder_select="h263_decoder"
1742 msmpeg4v3_encoder_select="h263_encoder"
1743 mss2_decoder_select="error_resilience vc1_decoder"
1744 mxpeg_decoder_select="mjpeg_decoder"
1745 nellymoser_decoder_select="mdct sinewin"
1746 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1747 nuv_decoder_select="dsputil lzo"
1748 png_decoder_deps="zlib"
1749 png_decoder_select="dsputil"
1750 png_encoder_deps="zlib"
1751 png_encoder_select="dsputil"
1752 prores_decoder_select="dsputil"
1753 prores_encoder_select="dsputil"
1754 qcelp_decoder_select="lsp"
1755 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1756 ra_144_encoder_select="audio_frame_queue lpc"
1757 ralf_decoder_select="golomb"
1758 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1759 rv10_encoder_select="h263_encoder"
1760 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1761 rv20_encoder_select="h263_encoder"
1762 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1763 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1764 shorten_decoder_select="golomb"
1765 sipr_decoder_select="lsp"
1766 sp5x_decoder_select="mjpeg_decoder"
1767 svq1_decoder_select="hpeldsp"
1768 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1769 svq3_decoder_select="h264_decoder hpeldsp mpegvideo"
1770 svq3_decoder_suggest="zlib"
1771 tak_decoder_select="dsputil"
1772 theora_decoder_select="vp3_decoder"
1773 tiff_decoder_suggest="zlib"
1774 tiff_encoder_suggest="zlib"
1775 thp_decoder_select="mjpeg_decoder"
1776 truehd_decoder_select="mlp_decoder"
1777 truemotion2_decoder_select="dsputil"
1778 truespeech_decoder_select="dsputil"
1779 tscc_decoder_deps="zlib"
1780 twinvq_decoder_select="mdct lsp sinewin"
1781 utvideo_decoder_select="dsputil"
1782 utvideo_encoder_select="dsputil huffman"
1783 vble_decoder_select="dsputil"
1784 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1785 vc1image_decoder_select="vc1_decoder"
1786 vorbis_decoder_select="mdct"
1787 vorbis_encoder_select="mdct"
1788 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1789 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1790 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1791 vp6a_decoder_select="vp6_decoder"
1792 vp6f_decoder_select="vp6_decoder"
1793 vp8_decoder_select="h264pred videodsp"
1794 vp9_decoder_select="videodsp"
1795 webp_decoder_select="vp8_decoder"
1796 wmapro_decoder_select="mdct sinewin"
1797 wmav1_decoder_select="mdct sinewin"
1798 wmav1_encoder_select="mdct sinewin"
1799 wmav2_decoder_select="mdct sinewin"
1800 wmav2_encoder_select="mdct sinewin"
1801 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1802 wmv1_decoder_select="h263_decoder"
1803 wmv1_encoder_select="h263_encoder"
1804 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1805 wmv2_encoder_select="h263_encoder"
1806 wmv3_decoder_select="vc1_decoder"
1807 wmv3image_decoder_select="wmv3_decoder"
1808 zerocodec_decoder_deps="zlib"
1809 zlib_decoder_deps="zlib"
1810 zlib_encoder_deps="zlib"
1811 zmbv_decoder_deps="zlib"
1812 zmbv_encoder_deps="zlib"
1813
1814 # hardware accelerators
1815 dxva2_deps="dxva2api_h"
1816 vaapi_deps="va_va_h"
1817 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1818 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1819 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1820
1821 h263_vaapi_hwaccel_deps="vaapi"
1822 h263_vaapi_hwaccel_select="h263_decoder"
1823 h263_vdpau_hwaccel_deps="vdpau"
1824 h263_vdpau_hwaccel_select="h263_decoder"
1825 h264_dxva2_hwaccel_deps="dxva2"
1826 h264_dxva2_hwaccel_select="h264_decoder"
1827 h264_vaapi_hwaccel_deps="vaapi"
1828 h264_vaapi_hwaccel_select="h264_decoder"
1829 h264_vda_hwaccel_deps="vda"
1830 h264_vda_hwaccel_select="h264_decoder"
1831 h264_vdpau_hwaccel_deps="vdpau"
1832 h264_vdpau_hwaccel_select="h264_decoder"
1833 mpeg1_vdpau_hwaccel_deps="vdpau"
1834 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1835 mpeg2_dxva2_hwaccel_deps="dxva2"
1836 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1837 mpeg2_vaapi_hwaccel_deps="vaapi"
1838 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1839 mpeg2_vdpau_hwaccel_deps="vdpau"
1840 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1841 mpeg4_vaapi_hwaccel_deps="vaapi"
1842 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1843 mpeg4_vdpau_hwaccel_deps="vdpau"
1844 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1845 vc1_dxva2_hwaccel_deps="dxva2"
1846 vc1_dxva2_hwaccel_select="vc1_decoder"
1847 vc1_vaapi_hwaccel_deps="vaapi"
1848 vc1_vaapi_hwaccel_select="vc1_decoder"
1849 vc1_vdpau_hwaccel_deps="vdpau"
1850 vc1_vdpau_hwaccel_select="vc1_decoder"
1851 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1852 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1853 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1854
1855 # parsers
1856 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1857 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1858 mpegvideo_parser_select="error_resilience mpegvideo"
1859 vc1_parser_select="mpegvideo"
1860
1861 # external libraries
1862 libfaac_encoder_deps="libfaac"
1863 libfaac_encoder_select="audio_frame_queue"
1864 libfdk_aac_decoder_deps="libfdk_aac"
1865 libfdk_aac_encoder_deps="libfdk_aac"
1866 libfdk_aac_encoder_select="audio_frame_queue"
1867 libgsm_decoder_deps="libgsm"
1868 libgsm_encoder_deps="libgsm"
1869 libgsm_ms_decoder_deps="libgsm"
1870 libgsm_ms_encoder_deps="libgsm"
1871 libilbc_decoder_deps="libilbc"
1872 libilbc_encoder_deps="libilbc"
1873 libmp3lame_encoder_deps="libmp3lame"
1874 libmp3lame_encoder_select="audio_frame_queue"
1875 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1876 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1877 libopencore_amrnb_encoder_select="audio_frame_queue"
1878 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1879 libopenjpeg_decoder_deps="libopenjpeg"
1880 libopenjpeg_encoder_deps="libopenjpeg"
1881 libopus_decoder_deps="libopus"
1882 libopus_encoder_deps="libopus"
1883 libopus_encoder_select="audio_frame_queue"
1884 libschroedinger_decoder_deps="libschroedinger"
1885 libschroedinger_encoder_deps="libschroedinger"
1886 libspeex_decoder_deps="libspeex"
1887 libspeex_encoder_deps="libspeex"
1888 libspeex_encoder_select="audio_frame_queue"
1889 libtheora_encoder_deps="libtheora"
1890 libvo_aacenc_encoder_deps="libvo_aacenc"
1891 libvo_aacenc_encoder_select="audio_frame_queue"
1892 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1893 libvorbis_encoder_deps="libvorbis"
1894 libvorbis_encoder_select="audio_frame_queue"
1895 libvpx_vp8_decoder_deps="libvpx"
1896 libvpx_vp8_encoder_deps="libvpx"
1897 libvpx_vp9_decoder_deps="libvpx"
1898 libvpx_vp9_encoder_deps="libvpx"
1899 libwavpack_encoder_deps="libwavpack"
1900 libwebp_encoder_deps="libwebp"
1901 libx264_encoder_deps="libx264"
1902 libx265_encoder_deps="libx265"
1903 libxavs_encoder_deps="libxavs"
1904 libxvid_encoder_deps="libxvid"
1905
1906 # demuxers / muxers
1907 ac3_demuxer_select="ac3_parser"
1908 asf_demuxer_select="riffdec"
1909 asf_muxer_select="riffenc"
1910 asf_stream_muxer_select="asf_muxer"
1911 avi_demuxer_select="riffdec"
1912 avi_muxer_select="riffenc"
1913 avisynth_demuxer_deps="avisynth"
1914 avisynth_demuxer_select="riffdec"
1915 caf_demuxer_select="riffdec"
1916 dirac_demuxer_select="dirac_parser"
1917 dxa_demuxer_select="riffdec"
1918 eac3_demuxer_select="ac3_parser"
1919 f4v_muxer_select="mov_muxer"
1920 flac_demuxer_select="flac_parser"
1921 hds_muxer_select="flv_muxer"
1922 hls_muxer_select="mpegts_muxer"
1923 ipod_muxer_select="mov_muxer"
1924 ismv_muxer_select="mov_muxer"
1925 matroska_audio_muxer_select="matroska_muxer"
1926 matroska_demuxer_select="riffdec"
1927 matroska_demuxer_suggest="bzlib lzo zlib"
1928 matroska_muxer_select="riffenc"
1929 mmf_muxer_select="riffenc"
1930 mov_demuxer_select="riffdec"
1931 mov_demuxer_suggest="zlib"
1932 mov_muxer_select="riffenc rtpenc_chain"
1933 mp3_demuxer_select="mpegaudio_parser"
1934 mp4_muxer_select="mov_muxer"
1935 mpegts_muxer_select="adts_muxer latm_muxer"
1936 mpegtsraw_demuxer_select="mpegts_demuxer"
1937 mxf_d10_muxer_select="mxf_muxer"
1938 nut_muxer_select="riffenc"
1939 nuv_demuxer_select="riffdec"
1940 ogg_demuxer_select="golomb"
1941 psp_muxer_select="mov_muxer"
1942 rtp_demuxer_select="sdp_demuxer"
1943 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1944 rtsp_demuxer_select="http_protocol rtpdec"
1945 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1946 sap_demuxer_select="sdp_demuxer"
1947 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1948 sdp_demuxer_select="rtpdec"
1949 smoothstreaming_muxer_select="ismv_muxer"
1950 spdif_muxer_select="aac_parser"
1951 tak_demuxer_select="tak_parser"
1952 tg2_muxer_select="mov_muxer"
1953 tgp_muxer_select="mov_muxer"
1954 w64_demuxer_select="wav_demuxer"
1955 wav_demuxer_select="riffdec"
1956 wav_muxer_select="riffenc"
1957 webm_muxer_select="riffenc"
1958 wtv_demuxer_select="riffdec"
1959 xmv_demuxer_select="riffdec"
1960 xwma_demuxer_select="riffdec"
1961
1962 # indevs / outdevs
1963 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1964 alsa_outdev_deps="alsa_asoundlib_h"
1965 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1966 dv1394_indev_deps="dv1394"
1967 dv1394_indev_select="dv_demuxer"
1968 fbdev_indev_deps="linux_fb_h"
1969 jack_indev_deps="jack_jack_h pthreads"
1970 libcdio_indev_deps="libcdio"
1971 libdc1394_indev_deps="libdc1394"
1972 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1973 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1974 pulse_indev_deps="libpulse"
1975 sndio_indev_deps="sndio_h"
1976 sndio_outdev_deps="sndio_h"
1977 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1978 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1979 vfwcap_indev_extralibs="-lavicap32"
1980 x11grab_indev_deps="x11grab XShmCreateImage"
1981
1982 # protocols
1983 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1984 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1985 ffrtmpcrypt_protocol_select="tcp_protocol"
1986 ffrtmphttp_protocol_deps="!librtmp_protocol"
1987 ffrtmphttp_protocol_select="http_protocol"
1988 gopher_protocol_select="network"
1989 httpproxy_protocol_select="tcp_protocol"
1990 http_protocol_select="tcp_protocol"
1991 https_protocol_select="tls_protocol"
1992 librtmp_protocol_deps="librtmp"
1993 librtmpe_protocol_deps="librtmp"
1994 librtmps_protocol_deps="librtmp"
1995 librtmpt_protocol_deps="librtmp"
1996 librtmpte_protocol_deps="librtmp"
1997 mmsh_protocol_select="http_protocol"
1998 mmst_protocol_select="network"
1999 rtmp_protocol_deps="!librtmp_protocol"
2000 rtmp_protocol_select="tcp_protocol"
2001 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2002 rtmps_protocol_deps="!librtmp_protocol"
2003 rtmps_protocol_select="tls_protocol"
2004 rtmpt_protocol_select="ffrtmphttp_protocol"
2005 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2006 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2007 rtp_protocol_select="udp_protocol"
2008 sctp_protocol_deps="struct_sctp_event_subscribe"
2009 sctp_protocol_select="network"
2010 srtp_protocol_select="rtp_protocol"
2011 tcp_protocol_select="network"
2012 tls_protocol_deps_any="openssl gnutls"
2013 tls_protocol_select="tcp_protocol"
2014 udp_protocol_select="network"
2015 unix_protocol_deps="sys_un_h"
2016 unix_protocol_select="network"
2017
2018 # filters
2019 blackframe_filter_deps="gpl"
2020 boxblur_filter_deps="gpl"
2021 cropdetect_filter_deps="gpl"
2022 delogo_filter_deps="gpl"
2023 drawtext_filter_deps="libfreetype"
2024 frei0r_filter_deps="frei0r dlopen"
2025 frei0r_filter_extralibs='$ldl'
2026 frei0r_src_filter_deps="frei0r dlopen"
2027 frei0r_src_filter_extralibs='$ldl'
2028 hqdn3d_filter_deps="gpl"
2029 interlace_filter_deps="gpl"
2030 resample_filter_deps="avresample"
2031 ocv_filter_deps="libopencv"
2032 scale_filter_deps="swscale"
2033
2034 # examples
2035 avcodec_example_deps="avcodec avutil"
2036 filter_audio_example_deps="avfilter avutil"
2037 metadata_example_deps="avformat avutil"
2038 output_example_deps="avcodec avformat avutil swscale"
2039 transcode_aac_example_deps="avcodec avformat avresample"
2040
2041 # libraries
2042 avcodec_deps="avutil"
2043 avdevice_deps="avutil avcodec avformat"
2044 avfilter_deps="avutil"
2045 avformat_deps="avutil avcodec"
2046 avresample_deps="avutil"
2047 swscale_deps="avutil"
2048
2049 # programs
2050 avconv_deps="avcodec avfilter avformat avresample swscale"
2051 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2052 fps_filter null_filter resample_filter scale_filter
2053 setpts_filter trim_filter"
2054 avplay_deps="avcodec avformat avresample swscale sdl"
2055 avplay_libs='$sdl_libs'
2056 avplay_select="rdft"
2057 avprobe_deps="avcodec avformat"
2058 avserver_deps="avformat fork !shared"
2059 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2060
2061 # documentation
2062 pod2man_deps="doc"
2063 texi2html_deps="doc"
2064
2065 # default parameters
2066
2067 logfile="config.log"
2068
2069 # installation paths
2070 prefix_default="/usr/local"
2071 bindir_default='${prefix}/bin'
2072 datadir_default='${prefix}/share/avconv'
2073 docdir_default='${prefix}/share/doc/libav'
2074 incdir_default='${prefix}/include'
2075 libdir_default='${prefix}/lib'
2076 mandir_default='${prefix}/share/man'
2077 shlibdir_default="$libdir_default"
2078
2079 # toolchain
2080 ar_default="ar"
2081 cc_default="gcc"
2082 host_cc_default="gcc"
2083 cp_f="cp -f"
2084 ln_s="ln -s -f"
2085 nm_default="nm -g"
2086 objformat="elf"
2087 pkg_config_default=pkg-config
2088 ranlib="ranlib"
2089 strip="strip"
2090 yasmexe="yasm"
2091
2092 nogas=":"
2093
2094 # machine
2095 arch_default=$(uname -m)
2096 cpu="generic"
2097
2098 # OS
2099 target_os_default=$(tolower $(uname -s))
2100 host_os=$target_os_default
2101
2102 # configurable options
2103 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2104
2105 enable asm
2106 enable debug
2107 enable doc
2108 enable optimizations
2109 enable safe_bitstream_reader
2110 enable static
2111 enable swscale_alpha
2112
2113 # By default, enable only those hwaccels that have no external dependencies.
2114 enable dxva2 vdpau
2115
2116 # build settings
2117 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2118 LIBPREF="lib"
2119 LIBSUF=".a"
2120 FULLNAME='$(NAME)$(BUILDSUF)'
2121 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2122 SLIBPREF="lib"
2123 SLIBSUF=".so"
2124 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2125 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2126 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2127 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2128 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2129 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2130
2131 asflags_filter=echo
2132 cflags_filter=echo
2133 ldflags_filter=echo
2134
2135 AS_C='-c'
2136 AS_O='-o $@'
2137 CC_C='-c'
2138 CC_E='-E -o $@'
2139 CC_O='-o $@'
2140 LD_O='-o $@'
2141 LD_LIB='-l%'
2142 LD_PATH='-L'
2143 HOSTCC_C='-c'
2144 HOSTCC_E='-E -o $@'
2145 HOSTCC_O='-o $@'
2146 HOSTLD_O='-o $@'
2147
2148 host_libs='-lm'
2149 host_cflags_filter=echo
2150 host_ldflags_filter=echo
2151
2152 target_path='$(CURDIR)'
2153
2154 # since the object filename is not given with the -MM flag, the compiler
2155 # is only able to print the basename, and we must add the path ourselves
2156 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2157 DEPFLAGS='-MM'
2158
2159 # find source path
2160 if test -f configure; then
2161 source_path=.
2162 else
2163 source_path=$(cd $(dirname "$0"); pwd)
2164 echo "$source_path" | grep -q '[[:blank:]]' &&
2165 die "Out of tree builds are impossible with whitespace in source path."
2166 test -e "$source_path/config.h" &&
2167 die "Out of tree builds are impossible with config.h in source dir."
2168 fi
2169
2170 for v in "$@"; do
2171 r=${v#*=}
2172 l=${v%"$r"}
2173 r=$(sh_quote "$r")
2174 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2175 done
2176
2177 find_things(){
2178 thing=$1
2179 pattern=$2
2180 file=$source_path/$3
2181 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2182 }
2183
2184 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2185 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2186 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2187 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2188 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2189 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2190 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2191 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2192 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2193 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2194 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2195
2196 ALL_COMPONENTS="
2197 $BSF_LIST
2198 $DECODER_LIST
2199 $DEMUXER_LIST
2200 $ENCODER_LIST
2201 $FILTER_LIST
2202 $HWACCEL_LIST
2203 $INDEV_LIST
2204 $MUXER_LIST
2205 $OUTDEV_LIST
2206 $PARSER_LIST
2207 $PROTOCOL_LIST
2208 "
2209
2210 for n in $COMPONENT_LIST; do
2211 v=$(toupper ${n%s})_LIST
2212 eval enable \$$v
2213 eval ${n}_if_any="\$$v"
2214 done
2215
2216 enable $ARCH_EXT_LIST
2217
2218 die_unknown(){
2219 echo "Unknown option \"$1\"."
2220 echo "See $0 --help for available options."
2221 exit 1
2222 }
2223
2224 print_3_columns() {
2225 cat | tr ' ' '\n' | sort | pr -r -3 -t
2226 }
2227
2228 show_list() {
2229 suffix=_$1
2230 shift
2231 echo $* | sed s/$suffix//g | print_3_columns
2232 exit 0
2233 }
2234
2235 rand_list(){
2236 IFS=', '
2237 set -- $*
2238 unset IFS
2239 for thing; do
2240 comp=${thing%:*}
2241 prob=${thing#$comp}
2242 prob=${prob#:}
2243 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2244 echo "prob ${prob:-0.5}"
2245 printf '%s\n' $comp
2246 done
2247 }
2248
2249 do_random(){
2250 action=$1
2251 shift
2252 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2253 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2254 }
2255
2256 for opt do
2257 optval="${opt#*=}"
2258 case "$opt" in
2259 --extra-ldflags=*)
2260 add_ldflags $optval
2261 ;;
2262 --extra-libs=*)
2263 add_extralibs $optval
2264 ;;
2265 --disable-devices)
2266 disable $INDEV_LIST $OUTDEV_LIST
2267 ;;
2268 --enable-debug=*)
2269 debuglevel="$optval"
2270 ;;
2271 --disable-programs)
2272 disable $PROGRAM_LIST
2273 ;;
2274 --disable-everything)
2275 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2276 ;;
2277 --disable-all)
2278 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2279 disable $LIBRARY_LIST $PROGRAM_LIST doc
2280 ;;
2281 --enable-random|--disable-random)
2282 action=${opt%%-random}
2283 do_random ${action#--} $COMPONENT_LIST
2284 ;;
2285 --enable-random=*|--disable-random=*)
2286 action=${opt%%-random=*}
2287 do_random ${action#--} $optval
2288 ;;
2289 --enable-*=*|--disable-*=*)
2290 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2291 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2292 eval list=\$$(toupper $thing)_LIST
2293 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2294 $action $(filter "$name" $list)
2295 ;;
2296 --enable-?*|--disable-?*)
2297 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2298 if is_in $option $COMPONENT_LIST; then
2299 test $action = disable && action=unset
2300 eval $action \$$(toupper ${option%s})_LIST
2301 elif is_in $option $CMDLINE_SELECT; then
2302 $action $option
2303 else
2304 die_unknown $opt
2305 fi
2306 ;;
2307 --list-*)
2308 NAME="${opt#--list-}"
2309 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2310 NAME=${NAME%s}
2311 eval show_list $NAME \$$(toupper $NAME)_LIST
2312 ;;
2313 --help|-h) show_help
2314 ;;
2315 *)
2316 optname="${opt%%=*}"
2317 optname="${optname#--}"
2318 optname=$(echo "$optname" | sed 's/-/_/g')
2319 if is_in $optname $CMDLINE_SET; then
2320 eval $optname='$optval'
2321 elif is_in $optname $CMDLINE_APPEND; then
2322 append $optname "$optval"
2323 else
2324 die_unknown $opt
2325 fi
2326 ;;
2327 esac
2328 done
2329
2330 disabled logging && logfile=/dev/null
2331
2332 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2333 set >> $logfile
2334
2335 test -n "$cross_prefix" && enable cross_compile
2336
2337 if enabled cross_compile; then
2338 test -n "$arch" && test -n "$target_os" ||
2339 die "Must specify target arch and OS when cross-compiling"
2340 fi
2341
2342 ar_default="${cross_prefix}${ar_default}"
2343 cc_default="${cross_prefix}${cc_default}"
2344 nm_default="${cross_prefix}${nm_default}"
2345 pkg_config_default="${cross_prefix}${pkg_config_default}"
2346 ranlib="${cross_prefix}${ranlib}"
2347 strip="${cross_prefix}${strip}"
2348
2349 sysinclude_default="${sysroot}/usr/include"
2350
2351 case "$toolchain" in
2352 clang-asan)
2353 cc_default="clang"
2354 add_cflags -fsanitize=address
2355 add_ldflags -fsanitize=address
2356 ;;
2357 clang-tsan)
2358 cc_default="clang"
2359 add_cflags -fsanitize=thread -pie
2360 add_ldflags -fsanitize=thread -pie
2361 ;;
2362 clang-usan)
2363 cc_default="clang"
2364 add_cflags -fsanitize=undefined
2365 add_ldflags -fsanitize=undefined
2366 ;;
2367 gcc-asan)
2368 cc_default="gcc"
2369 add_cflags -fsanitize=address
2370 add_ldflags -fsanitize=address
2371 ;;
2372 gcc-tsan)
2373 cc_default="gcc"
2374 add_cflags -fsanitize=thread -pie -fPIC
2375 add_ldflags -fsanitize=thread -pie -fPIC
2376 ;;
2377 gcc-usan)
2378 cc_default="gcc"
2379 add_cflags -fsanitize=undefined
2380 add_ldflags -fsanitize=undefined
2381 ;;
2382 valgrind-massif)
2383 target_exec_default="valgrind"
2384 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2385 ;;
2386 valgrind-memcheck)
2387 target_exec_default="valgrind"
2388 target_exec_args="--track-origins=yes --leak-check=full"
2389 ;;
2390 msvc)
2391 # Check whether the current MSVC version needs the C99 converter.
2392 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2393 # support enough of C99 to build libav. Default to the new
2394 # behaviour if the regexp was unable to match anything, since this
2395 # successfully parses the version number of existing supported
2396 # versions that require the converter (MSVC 2010 and 2012).
2397 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2398 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2399 cc_default="cl"
2400 else
2401 cc_default="c99wrap cl"
2402 fi
2403 ld_default="link"
2404 nm_default="dumpbin -symbols"
2405 ar_default="lib"
2406 target_os_default="win32"
2407 # Use a relative path for TMPDIR. This makes sure all the
2408 # ffconf temp files are written with a relative path, avoiding
2409 # issues with msys/win32 path conversion for MSVC parameters
2410 # such as -Fo<file> or -out:<file>.
2411 TMPDIR=.
2412 ;;
2413 icl)
2414 cc_default="icl"
2415 ld_default="xilink"
2416 nm_default="dumpbin -symbols"
2417 ar_default="xilib"
2418 target_os_default="win32"
2419 TMPDIR=.
2420 ;;
2421 gcov)
2422 add_cflags -fprofile-arcs -ftest-coverage
2423 add_ldflags -fprofile-arcs -ftest-coverage
2424 ;;
2425 hardened)
2426 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2427 add_ldflags -Wl,-z,relro -Wl,-z,now
2428 ;;
2429 ?*)
2430 die "Unknown toolchain $toolchain"
2431 ;;
2432 esac
2433
2434 set_default arch cc pkg_config sysinclude target_exec target_os
2435 enabled cross_compile || host_cc_default=$cc
2436 set_default host_cc
2437
2438 if ! $pkg_config --version >/dev/null 2>&1; then
2439 warn "$pkg_config not found, library detection may fail."
2440 pkg_config=false
2441 fi
2442
2443 exesuf() {
2444 case $1 in
2445 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2446 esac
2447 }
2448
2449 EXESUF=$(exesuf $target_os)
2450 HOSTEXESUF=$(exesuf $host_os)
2451
2452 # set temporary file name
2453 : ${TMPDIR:=$TEMPDIR}
2454 : ${TMPDIR:=$TMP}
2455 : ${TMPDIR:=/tmp}
2456
2457 if ! check_cmd mktemp -u XXXXXX; then
2458 # simple replacement for missing mktemp
2459 # NOT SAFE FOR GENERAL USE
2460 mktemp(){
2461 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2462 }
2463 fi
2464
2465 tmpfile(){
2466 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2467 (set -C; exec > $tmp) 2>/dev/null ||
2468 die "Unable to create temporary file in $TMPDIR."
2469 append TMPFILES $tmp
2470 eval $1=$tmp
2471 }
2472
2473 trap 'rm -f -- $TMPFILES' EXIT
2474
2475 tmpfile TMPASM .asm
2476 tmpfile TMPC .c
2477 tmpfile TMPE $EXESUF
2478 tmpfile TMPH .h
2479 tmpfile TMPO .o
2480 tmpfile TMPS .S
2481 tmpfile TMPSH .sh
2482 tmpfile TMPV .ver
2483
2484 unset -f mktemp
2485
2486 chmod +x $TMPE
2487
2488 # make sure we can execute files in $TMPDIR
2489 cat > $TMPSH 2>> $logfile <<EOF
2490 #! /bin/sh
2491 EOF
2492 chmod +x $TMPSH >> $logfile 2>&1
2493 if ! $TMPSH >> $logfile 2>&1; then
2494 cat <<EOF
2495 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2496 variable to another directory and make sure that it is not mounted noexec.
2497 EOF
2498 die "Sanity test failed."
2499 fi
2500
2501 ccc_flags(){
2502 for flag; do
2503 case $flag in
2504 -std=c99) echo -c99 ;;
2505 -mcpu=*) echo -arch ${flag#*=} ;;
2506 -mieee) echo -ieee ;;
2507 -O*|-fast) echo $flag ;;
2508 -fno-math-errno) echo -assume nomath_errno ;;
2509 -g) echo -g3 ;;
2510 -Wall) echo -msg_enable level2 ;;
2511 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2512 -Wl,*) echo $flag ;;
2513 -f*|-W*) ;;
2514 *) echo $flag ;;
2515 esac
2516 done
2517 }
2518
2519 cparser_flags(){
2520 for flag; do
2521 case $flag in
2522 -Wno-switch) echo -Wno-switch-enum ;;
2523 -Wno-format-zero-length) ;;
2524 -Wdisabled-optimization) ;;
2525 -Wno-pointer-sign) echo -Wno-other ;;
2526 *) echo $flag ;;
2527 esac
2528 done
2529 }
2530
2531 msvc_common_flags(){
2532 for flag; do
2533 case $flag in
2534 # In addition to specifying certain flags under the compiler
2535 # specific filters, they must be specified here as well or else the
2536 # generic catch all at the bottom will print the original flag.
2537 -Wall) ;;
2538 -std=c99) ;;
2539 # Common flags
2540 -fomit-frame-pointer) ;;
2541 -g) echo -Z7 ;;
2542 -fno-math-errno) ;;
2543 -fno-common) ;;
2544 -fno-signed-zeros) ;;
2545 -fPIC) ;;
2546 -mthumb) ;;
2547 -march=*) ;;
2548 -lz) echo zlib.lib ;;
2549 -lavifil32) echo vfw32.lib ;;
2550 -lavicap32) echo vfw32.lib user32.lib ;;
2551 -l*) echo ${flag#-l}.lib ;;
2552 *) echo $flag ;;
2553 esac
2554 done
2555 }
2556
2557 msvc_flags(){
2558 msvc_common_flags "$@"
2559 for flag; do
2560 case $flag in
2561 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2562 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2563 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2564 -wd4273 ;;
2565 esac
2566 done
2567 }
2568
2569 icl_flags(){
2570 msvc_common_flags "$@"
2571 for flag; do
2572 case $flag in
2573 # Despite what Intel's documentation says -Wall, which is supported
2574 # on Windows, does enable remarks so disable them here.
2575 -Wall) echo $flag -Qdiag-disable:remark ;;
2576 -std=c99) echo -Qstd=c99 ;;
2577 esac
2578 done
2579 }
2580
2581 pgi_flags(){
2582 for flag; do
2583 case $flag in
2584 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2585 -fomit-frame-pointer) echo -Mnoframe ;;
2586 -g) echo -gopt ;;
2587 *) echo $flag ;;
2588 esac
2589 done
2590 }
2591
2592 suncc_flags(){
2593 for flag; do
2594 case $flag in
2595 -march=*|-mcpu=*)
2596 case "${flag#*=}" in
2597 native) echo -xtarget=native ;;
2598 v9|niagara) echo -xarch=sparc ;;
2599 ultrasparc) echo -xarch=sparcvis ;;
2600 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2601 i586|pentium) echo -xchip=pentium ;;
2602 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2603 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2604 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2605 pentium4*) echo -xtarget=pentium4 ;;
2606 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2607 *-sse3) echo -xarch=sse3 ;;
2608 core2) echo -xarch=ssse3 -xchip=core2 ;;
2609 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2610 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2611 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2612 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2613 k8|opteron|athlon64|athlon-fx)
2614 echo -xarch=sse2a ;;
2615 athlon*) echo -xarch=pentium_proa ;;
2616 esac
2617 ;;
2618 -std=c99) echo -xc99 ;;
2619 -fomit-frame-pointer) echo -xregs=frameptr ;;
2620 -fPIC) echo -KPIC -xcode=pic32 ;;
2621 -W*,*) echo $flag ;;
2622 -f*-*|-W*|-mimpure-text) ;;
2623 -shared) echo -G ;;
2624 *) echo $flag ;;
2625 esac
2626 done
2627 }
2628
2629 tms470_flags(){
2630 for flag; do
2631 case $flag in
2632 -march=*|-mcpu=*)
2633 case "${flag#*=}" in
2634 armv7-a|cortex-a*) echo -mv=7a8 ;;
2635 armv7-r|cortex-r*) echo -mv=7r4 ;;
2636 armv7-m|cortex-m*) echo -mv=7m3 ;;
2637 armv6*|arm11*) echo -mv=6 ;;
2638 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2639 echo -mv=5e ;;
2640 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2641 esac
2642 ;;
2643 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2644 -mfpu=vfp) echo --float_support=vfpv2 ;;
2645 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2646 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2647 -msoft-float) echo --float_support=vfplib ;;
2648 -O[0-3]|-mf=*) echo $flag ;;
2649 -g) echo -g -mn ;;
2650 -pds=*) echo $flag ;;
2651 -D*|-I*) echo $flag ;;
2652 --gcc|--abi=*) echo $flag ;;
2653 -me) echo $flag ;;
2654 esac
2655 done
2656 }
2657
2658 probe_cc(){
2659 pfx=$1
2660 _cc=$2
2661
2662 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2663 unset _ld_o _ldflags _ld_lib _ld_path
2664 unset _depflags _DEPCMD _DEPFLAGS
2665 _flags_filter=echo
2666
2667 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2668 _type=llvm_gcc
2669 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2670 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2671 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2672 _cflags_speed='-O3'
2673 _cflags_size='-Os'
2674 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2675 _type=gcc
2676 gcc_version=$($_cc --version | head -n1)
2677 gcc_basever=$($_cc -dumpversion)
2678 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2679 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2680 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2681 if ! $_cc -dumpversion | grep -q '^2\.'; then
2682 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2683 fi
2684 _cflags_speed='-O3'
2685 _cflags_size='-Os'
2686 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2687 _type=icc
2688 _ident=$($_cc --version | head -n1)
2689 _depflags='-MMD'
2690 _cflags_speed='-O3'
2691 _cflags_size='-Os'
2692 _cflags_noopt='-O1'
2693 elif $_cc -v 2>&1 | grep -q xlc; then
2694 _type=xlc
2695 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2696 _cflags_speed='-O5'
2697 _cflags_size='-O5 -qcompact'
2698 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2699 _type=ccc
2700 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2701 _DEPFLAGS='-M'
2702 _cflags_speed='-fast'
2703 _cflags_size='-O1'
2704 _flags_filter=ccc_flags
2705 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2706 test -d "$sysroot" || die "No valid sysroot specified."
2707 _type=armcc
2708 _ident=$($_cc --vsn | head -n1)
2709 armcc_conf="$PWD/armcc.conf"
2710 $_cc --arm_linux_configure \
2711 --arm_linux_config_file="$armcc_conf" \
2712 --configure_sysroot="$sysroot" \
2713 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2714 die "Error creating armcc configuration file."
2715 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2716 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2717 as_default="${cross_prefix}gcc"
2718 _depflags='-MMD'
2719 _cflags_speed='-O3'
2720 _cflags_size='-Os'
2721 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2722 _type=tms470
2723 _ident=$($_cc -version | head -n1 | tr -s ' ')
2724 _flags='--gcc --abi=eabi -me'
2725 _cc_e='-ppl -fe=$@'
2726 _cc_o='-fe=$@'
2727 _depflags='-ppa -ppd=$(@:.o=.d)'
2728 _cflags_speed='-O3 -mf=5'
2729 _cflags_size='-O3 -mf=2'
2730 _flags_filter=tms470_flags
2731 elif $_cc -v 2>&1 | grep -q clang; then
2732 _type=clang
2733 _ident=$($_cc --version | head -n1)
2734 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2735 _cflags_speed='-O3'
2736 _cflags_size='-Os'
2737 elif $_cc -V 2>&1 | grep -q Sun; then
2738 _type=suncc
2739 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2740 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2741 _DEPFLAGS='-xM1 -xc99'
2742 _ldflags='-std=c99'
2743 _cflags_speed='-O5'
2744 _cflags_size='-O5 -xspace'
2745 _flags_filter=suncc_flags
2746 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2747 _type=pathscale
2748 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2749 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2750 _cflags_speed='-O2'
2751 _cflags_size='-Os'
2752 _flags_filter='filter_out -Wdisabled-optimization'
2753 elif $_cc -v 2>&1 | grep -q Open64; then
2754 _type=open64
2755 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2756 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2757 _cflags_speed='-O2'
2758 _cflags_size='-Os'
2759 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2760 elif $_cc -V 2>&1 | grep -q Portland; then
2761 _type=pgi
2762 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2763 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2764 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2765 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2766 _cflags_noopt="-O1"
2767 _flags_filter=pgi_flags
2768 elif $_cc 2>&1 | grep -q Microsoft; then
2769 _type=msvc
2770 _ident=$($cc 2>&1 | head -n1)
2771 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2772 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2773 _cflags_speed="-O2"
2774 _cflags_size="-O1"
2775 if $_cc 2>&1 | grep -q Linker; then
2776 _ld_o='-out:$@'
2777 else
2778 _ld_o='-Fe$@'
2779 fi
2780 _cc_o='-Fo$@'
2781 _cc_e='-P -Fi$@'
2782 _flags_filter=msvc_flags
2783 _ld_lib='lib%.a'
2784 _ld_path='-libpath:'
2785 _flags='-nologo'
2786 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2787 if [ $pfx = hostcc ]; then
2788 append _cflags -Dsnprintf=_snprintf
2789 fi
2790 elif $_cc 2>&1 | grep -q Intel; then
2791 _type=icl
2792 _ident=$($cc 2>&1 | head -n1)
2793 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2794 # Not only is O3 broken on 13.x+ but it is slower on all previous
2795 # versions (tested) as well.
2796 _cflags_speed="-O2"
2797 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2798 if $_cc 2>&1 | grep -q Linker; then
2799 _ld_o='-out:$@'
2800 else
2801 _ld_o='-Fe$@'
2802 fi
2803 _cc_o='-Fo$@'
2804 _cc_e='-P'
2805 _flags_filter=icl_flags
2806 _ld_lib='lib%.a'
2807 _ld_path='-libpath:'
2808 # -Qdiag-error to make icl error when seeing certain unknown arguments
2809 _flags='-nologo -Qdiag-error:4044,10157'
2810 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2811 # with MSVC which enables it by default.
2812 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2813 if [ $pfx = hostcc ]; then
2814 append _cflags -Dsnprintf=_snprintf
2815 fi
2816 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2817 _type=cparser
2818 _ident=$($_cc --version | head -n1)
2819 _depflags='-MMD'
2820 _cflags_speed='-O4'
2821 _cflags_size='-O2'
2822 _flags_filter=cparser_flags
2823 fi
2824
2825 eval ${pfx}_type=\$_type
2826 eval ${pfx}_ident=\$_ident
2827 }
2828
2829 set_ccvars(){
2830 eval ${1}_C=\${_cc_c-\${${1}_C}}
2831 eval ${1}_E=\${_cc_e-\${${1}_E}}
2832 eval ${1}_O=\${_cc_o-\${${1}_O}}
2833
2834 if [ -n "$_depflags" ]; then
2835 eval ${1}_DEPFLAGS=\$_depflags
2836 else
2837 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2838 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2839 eval DEP${1}FLAGS=\$_flags
2840 fi
2841 }
2842
2843 probe_cc cc "$cc"
2844 cflags_filter=$_flags_filter
2845 cflags_speed=$_cflags_speed
2846 cflags_size=$_cflags_size
2847 cflags_noopt=$_cflags_noopt
2848 add_cflags $_flags $_cflags
2849 cc_ldflags=$_ldflags
2850 set_ccvars CC
2851
2852 probe_cc hostcc "$host_cc"
2853 host_cflags_filter=$_flags_filter
2854 add_host_cflags $_flags $_cflags
2855 set_ccvars HOSTCC
2856
2857 test -n "$cc_type" && enable $cc_type ||
2858 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2859
2860 : ${as_default:=$cc}
2861 : ${dep_cc_default:=$cc}
2862 : ${ld_default:=$cc}
2863 : ${host_ld_default:=$host_cc}
2864 set_default ar as dep_cc ld host_ld
2865
2866 probe_cc as "$as"
2867 asflags_filter=$_flags_filter
2868 add_asflags $_flags $_cflags
2869 set_ccvars AS
2870
2871 probe_cc ld "$ld"
2872 ldflags_filter=$_flags_filter
2873 add_ldflags $_flags $_ldflags
2874 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2875 LD_O=${_ld_o-$LD_O}
2876 LD_LIB=${_ld_lib-$LD_LIB}
2877 LD_PATH=${_ld_path-$LD_PATH}
2878
2879 probe_cc hostld "$host_ld"
2880 host_ldflags_filter=$_flags_filter
2881 add_host_ldflags $_flags $_ldflags
2882 HOSTLD_O=${_ld_o-$HOSTLD_O}
2883
2884 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2885 probe_cc depcc "$dep_cc"
2886 CCDEP=${_DEPCMD:-$DEPCMD}
2887 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2888 DEPCCFLAGS=$_flags
2889 fi
2890
2891 if $ar 2>&1 | grep -q Microsoft; then
2892 arflags="-nologo"
2893 ar_o='-out:$@'
2894 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2895 arflags="rq"
2896 ar_o='$@'
2897 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2898 arflags='-Xany -r -c'
2899 ar_o='$@'
2900 else
2901 arflags="rc"
2902 ar_o='$@'
2903 fi
2904
2905 add_cflags $extra_cflags
2906 add_asflags $extra_cflags
2907
2908 if test -n "$sysroot"; then
2909 case "$cc_type" in
2910 gcc|llvm_gcc|clang)
2911 add_cppflags --sysroot="$sysroot"
2912 add_ldflags --sysroot="$sysroot"
2913 ;;
2914 tms470)
2915 add_cppflags -I"$sysinclude"
2916 add_ldflags --sysroot="$sysroot"
2917 ;;
2918 esac
2919 fi
2920
2921 if test "$cpu" = host; then
2922 enabled cross_compile &&
2923 die "--cpu=host makes no sense when cross-compiling."
2924
2925 case "$cc_type" in
2926 gcc|llvm_gcc)
2927 check_native(){
2928 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2929 sed -n "/cc1.*$1=/{
2930 s/.*$1=\\([^ ]*\\).*/\\1/
2931 p
2932 q
2933 }" $TMPE
2934 }
2935 cpu=$(check_native -march || check_native -mcpu)
2936 ;;
2937 esac
2938
2939 test "${cpu:-host}" = host &&
2940 die "--cpu=host not supported with compiler $cc"
2941 fi
2942
2943 # Deal with common $arch aliases
2944 case "$arch" in
2945 aarch64|arm64)
2946 arch="aarch64"
2947 ;;
2948 arm*)
2949 arch="arm"
2950 ;;
2951 mips*|IP*)
2952 arch="mips"
2953 ;;
2954 parisc*|hppa*)
2955 arch="parisc"
2956 ;;
2957 "Power Macintosh"|ppc*|powerpc*)
2958 arch="ppc"
2959 ;;
2960 s390|s390x)
2961 arch="s390"
2962 ;;
2963 sh4|sh)
2964 arch="sh4"
2965 ;;
2966 sun4u|sparc*)
2967 arch="sparc"
2968 ;;
2969 tilegx|tile-gx)
2970 arch="tilegx"
2971 ;;
2972 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2973 arch="x86"
2974 ;;
2975 esac
2976
2977 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2978 enable $arch
2979
2980 # Add processor-specific flags
2981 if enabled aarch64; then
2982
2983 case $cpu in
2984 armv*)
2985 cpuflags="-march=$cpu"
2986 ;;
2987 *)
2988 cpuflags="-mcpu=$cpu"
2989 ;;
2990 esac
2991
2992 elif enabled alpha; then
2993
2994 cpuflags="-mcpu=$cpu"
2995
2996 elif enabled arm; then
2997
2998 check_arm_arch() {
2999 check_cpp_condition stddef.h \
3000 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3001 $cpuflags
3002 }
3003
3004 probe_arm_arch() {
3005 if check_arm_arch 4; then echo armv4;
3006 elif check_arm_arch 4T; then echo armv4t;
3007 elif check_arm_arch 5; then echo armv5;
3008 elif check_arm_arch 5E; then echo armv5e;
3009 elif check_arm_arch 5T; then echo armv5t;
3010 elif check_arm_arch 5TE; then echo armv5te;
3011 elif check_arm_arch 5TEJ; then echo armv5te;
3012 elif check_arm_arch 6; then echo armv6;
3013 elif check_arm_arch 6J; then echo armv6j;
3014 elif check_arm_arch 6K; then echo armv6k;
3015 elif check_arm_arch 6Z; then echo armv6z;
3016 elif check_arm_arch 6ZK; then echo armv6zk;
3017 elif check_arm_arch 6T2; then echo armv6t2;
3018 elif check_arm_arch 7; then echo armv7;
3019 elif check_arm_arch 7A 7_A; then echo armv7-a;
3020 elif check_arm_arch 7R 7_R; then echo armv7-r;
3021 elif check_arm_arch 7M 7_M; then echo armv7-m;
3022 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3023 elif check_arm_arch 8A 8_A; then echo armv8-a;
3024 fi
3025 }
3026
3027 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3028
3029 case $cpu in
3030 armv*)
3031 cpuflags="-march=$cpu"
3032 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3033 ;;
3034 *)
3035 cpuflags="-mcpu=$cpu"
3036 case $cpu in
3037 cortex-a*) subarch=armv7a ;;
3038 cortex-r*) subarch=armv7r ;;
3039 cortex-m*) enable thumb; subarch=armv7m ;;
3040 arm11*) subarch=armv6 ;;
3041 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3042 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3043 *) subarch=$(probe_arm_arch) ;;
3044 esac
3045 ;;
3046 esac
3047
3048 case "$subarch" in
3049 armv5t*) enable fast_clz ;;
3050 armv[6-8]*) enable fast_clz fast_unaligned ;;
3051 esac
3052
3053 elif enabled avr32; then
3054
3055 case $cpu in
3056 ap7[02]0[0-2])
3057 subarch="avr32_ap"
3058 cpuflags="-mpart=$cpu"
3059 ;;
3060 ap)
3061 subarch="avr32_ap"
3062 cpuflags="-march=$cpu"
3063 ;;
3064 uc3[ab]*)
3065 subarch="avr32_uc"
3066 cpuflags="-mcpu=$cpu"
3067 ;;
3068 uc)
3069 subarch="avr32_uc"
3070 cpuflags="-march=$cpu"
3071 ;;
3072 esac
3073
3074 elif enabled bfin; then
3075
3076 cpuflags="-mcpu=$cpu"
3077
3078 elif enabled mips; then
3079
3080 cpuflags="-march=$cpu"
3081
3082 elif enabled ppc; then
3083
3084 case $(tolower $cpu) in
3085 601|ppc601|powerpc601)
3086 cpuflags="-mcpu=601"
3087 disable altivec
3088 ;;
3089 603*|ppc603*|powerpc603*)
3090 cpuflags="-mcpu=603"
3091 disable altivec
3092 ;;
3093 604*|ppc604*|powerpc604*)
3094 cpuflags="-mcpu=604"
3095 disable altivec
3096 ;;
3097 g3|75*|ppc75*|powerpc75*)
3098 cpuflags="-mcpu=750"
3099 disable altivec
3100 ;;
3101 g4|745*|ppc745*|powerpc745*)
3102 cpuflags="-mcpu=7450"
3103 ;;
3104 74*|ppc74*|powerpc74*)
3105 cpuflags="-mcpu=7400"
3106 ;;
3107 g5|970|ppc970|powerpc970)
3108 cpuflags="-mcpu=970"
3109 ;;
3110 power[3-7]*)
3111 cpuflags="-mcpu=$cpu"
3112 ;;
3113 cell)
3114 cpuflags="-mcpu=cell"
3115 enable ldbrx
3116 ;;
3117 e500mc)
3118 cpuflags="-mcpu=e500mc"
3119 disable altivec
3120 ;;
3121 e500v2)
3122 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3123 disable altivec
3124 ;;
3125 e500)
3126 cpuflags="-mcpu=8540 -mhard-float"
3127 disable altivec
3128 ;;
3129 esac
3130
3131 elif enabled sparc; then
3132
3133 case $cpu in
3134 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3135 cpuflags="-mcpu=$cpu"
3136 disable vis
3137 ;;
3138 ultrasparc*|niagara[234])
3139 cpuflags="-mcpu=$cpu"
3140 ;;
3141 esac
3142
3143 elif enabled x86; then
3144
3145 case $cpu in
3146 i[345]86|pentium)
3147 cpuflags="-march=$cpu"
3148 disable mmx
3149 ;;
3150 # targets that do NOT support nopl and conditional mov (cmov)
3151 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3152 cpuflags="-march=$cpu"
3153 disable i686
3154 ;;
3155 # targets that do support nopl and conditional mov (cmov)
3156 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3157 cpuflags="-march=$cpu"
3158 enable i686
3159 enable fast_cmov
3160 ;;
3161 # targets that do support conditional mov but on which it's slow
3162 pentium4|pentium4m|prescott|nocona)
3163 cpuflags="-march=$cpu"
3164 enable i686
3165 disable fast_cmov
3166 ;;
3167 esac
3168
3169 fi
3170
3171 if [ "$cpu" != generic ]; then
3172 add_cflags $cpuflags
3173 add_asflags $cpuflags
3174 fi
3175
3176 # compiler sanity check
3177 check_exec <<EOF
3178 int main(void){ return 0; }
3179 EOF
3180 if test "$?" != 0; then
3181 echo "$cc is unable to create an executable file."
3182 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3183 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3184 echo "Only do this if you know what cross compiling means."
3185 fi
3186 die "C compiler test failed."
3187 fi
3188
3189 add_cppflags -D_ISOC99_SOURCE
3190 check_cflags -std=c99
3191 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3192 #include <stdlib.h>
3193 EOF
3194 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3195 #include <stdlib.h>
3196 EOF
3197
3198 add_host_cppflags -D_ISOC99_SOURCE
3199 check_host_cflags -std=c99
3200 check_host_cflags -Wall
3201 check_host_cflags -O3
3202
3203 check_64bit(){
3204 arch32=$1
3205 arch64=$2
3206 expr=$3
3207 check_code cc "" "int test[2*($expr) - 1]" &&
3208 subarch=$arch64 || subarch=$arch32
3209 }
3210
3211 case "$arch" in
3212 aarch64|alpha|ia64)
3213 spic=$shared
3214 ;;
3215 mips)
3216 check_64bit mips mips64 '_MIPS_SIM > 1'
3217 spic=$shared
3218 ;;
3219 parisc)
3220 check_64bit parisc parisc64 'sizeof(void *) > 4'
3221 spic=$shared
3222 ;;
3223 ppc)
3224 check_64bit ppc ppc64 'sizeof(void *) > 4'
3225 spic=$shared
3226 ;;
3227 s390)
3228 check_64bit s390 s390x 'sizeof(void *) > 4'
3229 spic=$shared
3230 ;;
3231 sparc)
3232 check_64bit sparc sparc64 'sizeof(void *) > 4'
3233 spic=$shared
3234 ;;
3235 x86)
3236 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3237 if test "$subarch" = "x86_64"; then
3238 spic=$shared
3239 fi
3240 ;;
3241 esac
3242
3243 enable $subarch
3244 enabled spic && enable_weak pic
3245
3246 # OS specific
3247 case $target_os in
3248 aix)
3249 SHFLAGS=-shared
3250 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3251 enabled shared && add_ldflags -Wl,-brtl
3252 ;;
3253 haiku)
3254 prefix_default="/boot/common"
3255 network_extralibs="-lnetwork"
3256 host_libs=
3257 ;;
3258 sunos)
3259 SHFLAGS='-shared -Wl,-h,$$(@F)'
3260 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3261 network_extralibs="-lsocket -lnsl"
3262 # When using suncc to build, the Solaris linker will mark
3263 # an executable with each instruction set encountered by
3264 # the Solaris assembler. As our libraries contain their own
3265 # guards for processor-specific code, instead suppress
3266 # generation of the HWCAPS ELF section on Solaris x86 only.
3267 enabled_all suncc x86 &&
3268 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3269 add_ldflags -Wl,-M,mapfile
3270 nm_default='nm -P -g'
3271 ;;
3272 netbsd)
3273 disable symver
3274 oss_indev_extralibs="-lossaudio"
3275 oss_outdev_extralibs="-lossaudio"
3276 ;;
3277 openbsd|bitrig)
3278 disable symver
3279 SHFLAGS='-shared'
3280 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3281 SLIB_INSTALL_LINKS=
3282 oss_indev_extralibs="-lossaudio"
3283 oss_outdev_extralibs="-lossaudio"
3284 ;;
3285 dragonfly)
3286 disable symver
3287 ;;
3288 freebsd)
3289 ;;
3290 bsd/os)
3291 add_extralibs -lpoll -lgnugetopt
3292 ;;
3293 darwin)
3294 gas="gas-preprocessor.pl $cc"
3295 enabled ppc && add_asflags -force_cpusubtype_ALL
3296 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3297 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3298 add_ldflags -Wl,-dynamic,-search_paths_first
3299 SLIBSUF=".dylib"
3300 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3301 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3302 objformat="macho"
3303 enabled x86_64 && objformat="macho64"
3304 enabled_any pic shared ||
3305 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3306 ;;
3307 mingw32*)
3308 if test $target_os = "mingw32ce"; then
3309 disable network
3310 else
3311 target_os=mingw32
3312 fi
3313 LIBTARGET=i386
3314 if enabled x86_64; then
3315 LIBTARGET="i386:x86-64"
3316 elif enabled arm; then
3317 LIBTARGET=arm-wince
3318 fi
3319 check_ldflags -Wl,--nxcompat
3320 check_ldflags -Wl,--dynamicbase
3321 shlibdir_default="$bindir_default"
3322 SLIBPREF=""
3323 SLIBSUF=".dll"
3324 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3325 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3326 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3327 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3328 SLIB_INSTALL_LINKS=
3329 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3330 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3331 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3332 objformat="win32"
3333 dlltool="${cross_prefix}dlltool"
3334 ranlib=:
3335 enable dos_paths
3336 ;;
3337 win32|win64)
3338 disable symver
3339 if enabled shared; then
3340 # Link to the import library instead of the normal static library
3341 # for shared libs.
3342 LD_LIB='%.lib'
3343 # Cannot build both shared and static libs with MSVC or icl.
3344 disable static
3345 fi
3346 shlibdir_default="$bindir_default"
3347 SLIBPREF=""
3348 SLIBSUF=".dll"
3349 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3350 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3351 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3352 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3353 SLIB_INSTALL_LINKS=
3354 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3355 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3356 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3357 objformat="win32"
3358 ranlib=:
3359 enable dos_paths
3360 ;;
3361 cygwin*)
3362 target_os=cygwin
3363 shlibdir_default="$bindir_default"
3364 SLIBPREF="cyg"
3365 SLIBSUF=".dll"
3366 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3367 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3368 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3369 SLIB_INSTALL_LINKS=
3370 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3371 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3372 objformat="win32"
3373 enable dos_paths
3374 ;;
3375 *-dos|freedos|opendos)
3376 network_extralibs="-lsocket"
3377 objformat="coff"
3378 enable dos_paths
3379 add_cppflags -U__STRICT_ANSI__
3380 ;;
3381 linux)
3382 enable dv1394
3383 ;;
3384 irix*)
3385 target_os=irix
3386 ranlib="echo ignoring ranlib"
3387 ;;
3388 os/2*)
3389 ln_s="cp -f"
3390 objformat="aout"
3391 add_cppflags -D_GNU_SOURCE
3392 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3393 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3394 LIBSUF="_s.a"
3395 SLIBPREF=""
3396 SLIBSUF=".dll"
3397 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3398 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3399 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3400 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3401 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3402 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3403 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3404 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3405 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3406 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3407 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3408 enable dos_paths
3409 ;;
3410 gnu/kfreebsd)
3411 add_cppflags -D_BSD_SOURCE
3412 ;;
3413 gnu)
3414 ;;
3415 qnx)
3416 add_cppflags -D_QNX_SOURCE
3417 network_extralibs="-lsocket"
3418 ;;
3419 symbian)
3420 SLIBSUF=".dll"
3421 enable dos_paths
3422 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3423 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3424 add_ldflags -Wl,--target1-abs,--no-undefined \
3425 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3426 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3427 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3428 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3429 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3430 ;;
3431 osf1)
3432 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3433 ;;
3434 minix)
3435 ;;
3436 plan9)
3437 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3438 -D_REENTRANT_SOURCE \
3439 -D_RESEARCH_SOURCE \
3440 -DFD_SETSIZE=96 \
3441 -DHAVE_SOCK_OPTS
3442 add_compat strtod.o strtod=avpriv_strtod
3443 network_extralibs='-lbsd'
3444 exeobjs=compat/plan9/main.o
3445 disable avserver
3446 cp_f='cp'
3447 ;;
3448 none)
3449 ;;
3450 *)
3451 die "Unknown OS '$target_os'."
3452 ;;
3453 esac
3454
3455 # determine libc flavour
3456
3457 probe_libc(){
3458 pfx=$1
3459 pfx_no_=${pfx%_}
3460 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3461 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3462 eval ${pfx}libc_type=uclibc
3463 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3464 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3465 eval ${pfx}libc_type=glibc
3466 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3467 # MinGW headers can be installed on Cygwin, so check for newlib first.
3468 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3469 eval ${pfx}libc_type=newlib
3470 add_${pfx}cppflags -U__STRICT_ANSI__
3471 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3472 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3473 eval ${pfx}libc_type=mingw64
3474 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3475 eval test \$${pfx_no_}cc_type = "gcc" &&
3476 add_${pfx}cppflags -D__printf__=__gnu_printf__
3477 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3478 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3479 eval ${pfx}libc_type=mingw32
3480 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3481 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3482 die "ERROR: MinGW32 runtime version must be >= 3.15."
3483 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3484 eval test \$${pfx_no_}cc_type = "gcc" &&
3485 add_${pfx}cppflags -D__printf__=__gnu_printf__
3486 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3487 eval ${pfx}libc_type=msvcrt
3488 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3489 # 0x601 by default unless something else is set by the user.
3490 # This can easily lead to us detecting functions only present
3491 # in such new versions and producing binaries requiring windows 7.0.
3492 # Therefore explicitly set the default to XP unless the user has
3493 # set something else on the command line.
3494 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3495 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3496 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3497 eval ${pfx}libc_type=klibc
3498 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3499 eval ${pfx}libc_type=bionic
3500 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3501 eval ${pfx}libc_type=solaris
3502 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3503 fi
3504 }
3505
3506 probe_libc
3507 test -n "$libc_type" && enable libc_$libc_type
3508 probe_libc host_
3509 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3510
3511 case $libc_type in
3512 bionic)
3513 add_compat strtod.o strtod=avpriv_strtod
3514 ;;
3515 msvcrt)
3516 add_compat strtod.o strtod=avpriv_strtod
3517 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3518 _snprintf=avpriv_snprintf \
3519 vsnprintf=avpriv_vsnprintf
3520 ;;
3521 esac
3522
3523 # hacks for compiler/libc/os combinations
3524
3525 if enabled_all tms470 libc_glibc; then
3526 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3527 add_cppflags -D__USER_LABEL_PREFIX__=
3528 add_cppflags -D__builtin_memset=memset
3529 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3530 add_cflags -pds=48 # incompatible redefinition of macro
3531 fi
3532
3533 if enabled_all ccc libc_glibc; then
3534 add_ldflags -Wl,-z,now # calls to libots crash without this
3535 fi
3536
3537 esc(){
3538 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3539 }
3540
3541 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3542
3543 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3544
3545 set_default $PATHS_LIST
3546 set_default nm
3547
3548 # we need to build at least one lib type
3549 if ! enabled_any static shared; then
3550 cat <<EOF
3551 At least one library type must be built.
3552 Specify --enable-static to build the static libraries or --enable-shared to
3553 build the shared libraries as well. To only build the shared libraries specify
3554 --disable-static in addition to --enable-shared.
3555 EOF
3556 exit 1;
3557 fi
3558
3559 die_license_disabled() {
3560 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3561 }
3562
3563 die_license_disabled gpl libcdio
3564 die_license_disabled gpl libx264
3565 die_license_disabled gpl libx265
3566 die_license_disabled gpl libxavs
3567 die_license_disabled gpl libxvid
3568 die_license_disabled gpl x11grab
3569
3570 die_license_disabled nonfree libfaac
3571 die_license_disabled nonfree libfdk_aac
3572 die_license_disabled nonfree openssl
3573
3574 die_license_disabled version3 libopencore_amrnb
3575 die_license_disabled version3 libopencore_amrwb
3576 die_license_disabled version3 libvo_aacenc
3577 die_license_disabled version3 libvo_amrwbenc
3578
3579 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3580
3581 disabled optimizations || check_cflags -fomit-frame-pointer
3582
3583 enable_weak_pic() {
3584 disabled pic && return
3585 enable pic
3586 add_cppflags -DPIC
3587 case "$target_os" in
3588 mingw*|cygwin*)
3589 ;;
3590 *)
3591 add_cflags -fPIC
3592 ;;
3593 esac
3594 add_asflags -fPIC
3595 }
3596
3597 enabled pic && enable_weak_pic
3598
3599 check_cc <<EOF || die "Symbol mangling check failed."
3600 int ff_extern;
3601 EOF
3602 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3603 extern_prefix=${sym%%ff_extern*}
3604
3605 check_cc <<EOF && enable_weak inline_asm
3606 void foo(void) { __asm__ volatile ("" ::); }
3607 EOF
3608
3609 _restrict=
3610 for restrict_keyword in restrict __restrict__ __restrict; do
3611 check_cc <<EOF && _restrict=$restrict_keyword && break
3612 void foo(char * $restrict_keyword p);
3613 EOF
3614 done
3615
3616 check_cc <<EOF && enable pragma_deprecated
3617 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3618 EOF
3619
3620 check_cc <<EOF && enable attribute_packed
3621 struct { int x; } __attribute__((packed)) x;
3622 EOF
3623
3624 check_cc <<EOF && enable attribute_may_alias
3625 union { int x; } __attribute__((may_alias)) x;
3626 EOF
3627
3628 check_cc <<EOF || die "endian test failed"
3629 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3630 EOF
3631 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3632
3633 check_inline_asm inline_asm_labels '"1:\n"'
3634
3635 if enabled aarch64; then
3636 # internal assembler in clang 3.3 does not support this instruction
3637 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3638 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3639
3640 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3641
3642 elif enabled alpha; then
3643
3644 check_cflags -mieee
3645
3646 elif enabled arm; then
3647
3648 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3649 enabled thumb && check_cflags -mthumb || check_cflags -marm
3650 nogas=die
3651
3652 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3653 enable vfp_args
3654 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3655 case "${cross_prefix:-$cc}" in
3656 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3657 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3658 __asm__ (".eabi_attribute 28, 1");
3659 int main(void) { return 0; }
3660 EOF
3661 esac
3662 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3663 fi
3664
3665 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3666 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3667 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3668 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3669 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3670 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3671
3672 [ $target_os = linux ] ||
3673 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3674 $ARCH_EXT_LIST_ARM
3675
3676 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3677
3678 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3679
3680 elif enabled mips; then
3681
3682 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3683
3684 elif enabled parisc; then
3685
3686 if enabled gcc; then
3687 case $($cc -dumpversion) in
3688 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3689 esac
3690 fi
3691
3692 elif enabled ppc; then
3693
3694 enable local_aligned_8 local_aligned_16
3695
3696 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3697 check_inline_asm ibm_asm '"add 0, 0, 0"'
3698 check_inline_asm ppc4xx '"maclhw r10, r11