configure: Express atomics/thread deps through the dependency system
[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-libx264 enable H.264 encoding via x264 [no]
206 --enable-libxavs enable AVS encoding via xavs [no]
207 --enable-libxvid enable Xvid encoding via xvidcore,
208 native MPEG-4/Xvid encoder exists [no]
209 --enable-openssl enable openssl [no]
210 --enable-x11grab enable X11 grabbing [no]
211 --enable-zlib enable zlib [autodetect]
212
213 Advanced options (experts only):
214 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
215 --enable-cross-compile assume a cross-compiler is used
216 --sysroot=PATH root of cross-build tree
217 --sysinclude=PATH location of cross-build system headers
218 --target-os=OS compiler targets OS [$target_os]
219 --target-exec=CMD command to run executables on target
220 --target-path=DIR path to view of build directory on target
221 --target-samples=DIR path to samples directory on target
222 --toolchain=NAME set tool defaults according to NAME
223 --nm=NM use nm tool
224 --ar=AR use archive tool AR [$ar_default]
225 --as=AS use assembler AS [$as_default]
226 --cc=CC use C compiler CC [$cc_default]
227 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
228 --ld=LD use linker LD
229 --host-cc=HOSTCC use host C compiler HOSTCC
230 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
231 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
232 --host-ld=HOSTLD use host linker HOSTLD
233 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
234 --host-libs=HLIBS use libs HLIBS when linking for host
235 --host-os=OS compiler host OS [$target_os]
236 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
237 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
238 --extra-libs=ELIBS add ELIBS [$ELIBS]
239 --extra-version=STRING version string suffix []
240 --optflags=OPTFLAGS override optimization-related compiler flags
241 --build-suffix=SUFFIX library name suffix []
242 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
243 --arch=ARCH select architecture [$arch]
244 --cpu=CPU select the minimum required CPU (affects
245 instruction selection, may crash on older CPUs)
246 --enable-pic build position-independent code
247 --enable-sram allow use of on-chip SRAM
248 --enable-thumb compile for Thumb instruction set
249 --disable-symver disable symbol versioning
250 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251 --disable-safe-bitstream-reader
252 disable buffer boundary checking in bitreaders
253 (faster, but may crash)
254 --enable-memalign-hack emulate memalign, interferes with memory debuggers
255 --enable-lto use link-time optimization
256
257 Optimization options (experts only):
258 --disable-asm disable all assembler optimizations
259 --disable-altivec disable AltiVec optimizations
260 --disable-amd3dnow disable 3DNow! optimizations
261 --disable-amd3dnowext disable 3DNow! extended optimizations
262 --disable-mmx disable MMX optimizations
263 --disable-mmxext disable MMXEXT optimizations
264 --disable-sse disable SSE optimizations
265 --disable-sse2 disable SSE2 optimizations
266 --disable-sse3 disable SSE3 optimizations
267 --disable-ssse3 disable SSSE3 optimizations
268 --disable-sse4 disable SSE4 optimizations
269 --disable-sse42 disable SSE4.2 optimizations
270 --disable-avx disable AVX optimizations
271 --disable-fma4 disable FMA4 optimizations
272 --disable-avx2 disable AVX2 optimizations
273 --disable-armv5te disable armv5te optimizations
274 --disable-armv6 disable armv6 optimizations
275 --disable-armv6t2 disable armv6t2 optimizations
276 --disable-vfp disable VFP optimizations
277 --disable-neon disable NEON optimizations
278 --disable-vis disable VIS optimizations
279 --disable-inline-asm disable use of inline assembler
280 --disable-yasm disable use of yasm assembler
281
282 Developer options (useful when working on Libav itself):
283 --disable-debug disable debugging symbols
284 --enable-debug=LEVEL set the debug level [$debuglevel]
285 --disable-optimizations disable compiler optimizations
286 --enable-extra-warnings enable more compiler warnings
287 --samples=PATH location of test samples for FATE, if not set use
288 \$LIBAV_SAMPLES at make invocation time.
289 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
290 should be used only for debugging purposes)
291 --enable-random randomly enable/disable components
292 --disable-random
293 --enable-random=LIST randomly enable/disable specific components or
294 --disable-random=LIST component groups. LIST is a comma-separated list
295 of NAME[:PROB] entries where NAME is a component
296 (group) and PROB the probability associated with
297 NAME (default 0.5).
298 --random-seed=VALUE seed value for --enable/disable-random
299
300 NOTE: Object files are built at the place where configure is launched.
301 EOF
302 exit 0
303 }
304
305 quotes='""'
306
307 log(){
308 echo "$@" >> $logfile
309 }
310
311 log_file(){
312 log BEGIN $1
313 pr -n -t $1 >> $logfile
314 log END $1
315 }
316
317 echolog(){
318 log "$@"
319 echo "$@"
320 }
321
322 warn(){
323 log "WARNING: $*"
324 WARNINGS="${WARNINGS}WARNING: $*\n"
325 }
326
327 die(){
328 echolog "$@"
329 cat <<EOF
330
331 If you think configure made a mistake, make sure you are using the latest
332 version from Git. If the latest version fails, report the problem to the
333 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
334 EOF
335 if disabled logging; then
336 cat <<EOF
337 Rerun configure with logging enabled (do not use --disable-logging), and
338 include the log this produces with your report.
339 EOF
340 else
341 cat <<EOF
342 Include the log file "$logfile" produced by configure as this will help
343 solving the problem.
344 EOF
345 fi
346 exit 1
347 }
348
349 # Avoid locale weirdness, besides we really just want to translate ASCII.
350 toupper(){
351 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
352 }
353
354 tolower(){
355 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
356 }
357
358 c_escape(){
359 echo "$*" | sed 's/["\\]/\\\0/g'
360 }
361
362 sh_quote(){
363 v=$(echo "$1" | sed "s/'/'\\\\''/g")
364 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
365 echo "$v"
366 }
367
368 cleanws(){
369 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
370 }
371
372 filter(){
373 pat=$1
374 shift
375 for v; do
376 eval "case $v in $pat) echo $v ;; esac"
377 done
378 }
379
380 filter_out(){
381 pat=$1
382 shift
383 for v; do
384 eval "case $v in $pat) ;; *) echo $v ;; esac"
385 done
386 }
387
388 map(){
389 m=$1
390 shift
391 for v; do eval $m; done
392 }
393
394 add_suffix(){
395 suffix=$1
396 shift
397 for v; do echo ${v}${suffix}; done
398 }
399
400 set_all(){
401 value=$1
402 shift
403 for var in $*; do
404 eval $var=$value
405 done
406 }
407
408 set_weak(){
409 value=$1
410 shift
411 for var; do
412 eval : \${$var:=$value}
413 done
414 }
415
416 sanitize_var_name(){
417 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
418 }
419
420 set_safe(){
421 var=$1
422 shift
423 eval $(sanitize_var_name "$var")='$*'
424 }
425
426 get_safe(){
427 eval echo \$$(sanitize_var_name "$1")
428 }
429
430 pushvar(){
431 for pvar in $*; do
432 eval level=\${${pvar}_level:=0}
433 eval ${pvar}_${level}="\$$pvar"
434 eval ${pvar}_level=$(($level+1))
435 done
436 }
437
438 popvar(){
439 for pvar in $*; do
440 eval level=\${${pvar}_level:-0}
441 test $level = 0 && continue
442 eval level=$(($level-1))
443 eval $pvar="\${${pvar}_${level}}"
444 eval ${pvar}_level=$level
445 eval unset ${pvar}_${level}
446 done
447 }
448
449 enable(){
450 set_all yes $*
451 }
452
453 disable(){
454 set_all no $*
455 }
456
457 enable_weak(){
458 set_weak yes $*
459 }
460
461 disable_weak(){
462 set_weak no $*
463 }
464
465 enable_safe(){
466 for var; do
467 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
468 done
469 }
470
471 disable_safe(){
472 for var; do
473 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474 done
475 }
476
477 do_enable_deep(){
478 for var; do
479 enabled $var && continue
480 eval sel="\$${var}_select"
481 eval sgs="\$${var}_suggest"
482 pushvar var sgs
483 enable_deep $sel
484 popvar sgs
485 enable_deep_weak $sgs
486 popvar var
487 done
488 }
489
490 enable_deep(){
491 do_enable_deep $*
492 enable $*
493 }
494
495 enable_deep_weak(){
496 for var; do
497 disabled $var && continue
498 pushvar var
499 do_enable_deep $var
500 popvar var
501 enable_weak $var
502 done
503 }
504
505 enabled(){
506 test "${1#!}" = "$1" && op== || op=!=
507 eval test "x\$${1#!}" $op "xyes"
508 }
509
510 disabled(){
511 test "${1#!}" = "$1" && op== || op=!=
512 eval test "x\$${1#!}" $op "xno"
513 }
514
515 enabled_all(){
516 for opt; do
517 enabled $opt || return 1
518 done
519 }
520
521 disabled_all(){
522 for opt; do
523 disabled $opt || return 1
524 done
525 }
526
527 enabled_any(){
528 for opt; do
529 enabled $opt && return 0
530 done
531 }
532
533 disabled_any(){
534 for opt; do
535 disabled $opt && return 0
536 done
537 return 1
538 }
539
540 set_default(){
541 for opt; do
542 eval : \${$opt:=\$${opt}_default}
543 done
544 }
545
546 is_in(){
547 value=$1
548 shift
549 for var in $*; do
550 [ $var = $value ] && return 0
551 done
552 return 1
553 }
554
555 do_check_deps(){
556 for cfg; do
557 cfg="${cfg#!}"
558 enabled ${cfg}_checking && die "Circular dependency for $cfg."
559 disabled ${cfg}_checking && continue
560 enable ${cfg}_checking
561 append allopts $cfg
562
563 eval dep_all="\$${cfg}_deps"
564 eval dep_any="\$${cfg}_deps_any"
565 eval dep_sel="\$${cfg}_select"
566 eval dep_sgs="\$${cfg}_suggest"
567 eval dep_ifa="\$${cfg}_if"
568 eval dep_ifn="\$${cfg}_if_any"
569
570 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
571 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
572 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
573
574 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
575 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
576 enabled_all $dep_all || disable $cfg
577 enabled_any $dep_any || disable $cfg
578 disabled_any $dep_sel && disable $cfg
579
580 if enabled $cfg; then
581 enable_deep $dep_sel
582 enable_deep_weak $dep_sgs
583 fi
584
585 disable ${cfg}_checking
586 done
587 }
588
589 check_deps(){
590 unset allopts
591
592 do_check_deps "$@"
593
594 for cfg in $allopts; do
595 enabled $cfg || continue
596 eval dep_extralibs="\$${cfg}_extralibs"
597 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
598 done
599 }
600
601 print_config(){
602 pfx=$1
603 files=$2
604 shift 2
605 map 'eval echo "$v \${$v:-no}"' "$@" |
606 awk "BEGIN { split(\"$files\", files) }
607 {
608 c = \"$pfx\" toupper(\$1);
609 v = \$2;
610 sub(/yes/, 1, v);
611 sub(/no/, 0, v);
612 for (f in files) {
613 file = files[f];
614 if (file ~ /\\.h\$/) {
615 printf(\"#define %s %d\\n\", c, v) >>file;
616 } else if (file ~ /\\.asm\$/) {
617 printf(\"%%define %s %d\\n\", c, v) >>file;
618 } else if (file ~ /\\.mak\$/) {
619 n = -v ? \"\" : \"!\";
620 printf(\"%s%s=yes\\n\", n, c) >>file;
621 }
622 }
623 }"
624 }
625
626 print_enabled(){
627 suf=$1
628 shift
629 for v; do
630 enabled $v && printf "%s\n" ${v%$suf};
631 done
632 }
633
634 append(){
635 var=$1
636 shift
637 eval "$var=\"\$$var $*\""
638 }
639
640 prepend(){
641 var=$1
642 shift
643 eval "$var=\"$* \$$var\""
644 }
645
646 add_cppflags(){
647 append CPPFLAGS "$@"
648 }
649
650 add_cflags(){
651 append CFLAGS $($cflags_filter "$@")
652 }
653
654 add_asflags(){
655 append ASFLAGS $($asflags_filter "$@")
656 }
657
658 add_ldflags(){
659 append LDFLAGS $($ldflags_filter "$@")
660 }
661
662 add_stripflags(){
663 append STRIPFLAGS "$@"
664 }
665
666 add_extralibs(){
667 prepend extralibs $($ldflags_filter "$@")
668 }
669
670 add_host_cppflags(){
671 append host_cppflags "$@"
672 }
673
674 add_host_cflags(){
675 append host_cflags $($host_cflags_filter "$@")
676 }
677
678 add_host_ldflags(){
679 append host_ldflags $($host_ldflags_filter "$@")
680 }
681
682 add_compat(){
683 append compat_objs $1
684 shift
685 map 'add_cppflags -D$v' "$@"
686 }
687
688 check_cmd(){
689 log "$@"
690 "$@" >> $logfile 2>&1
691 }
692
693 cc_o(){
694 eval printf '%s\\n' $CC_O
695 }
696
697 cc_e(){
698 eval printf '%s\\n' $CC_E
699 }
700
701 check_cc(){
702 log check_cc "$@"
703 cat > $TMPC
704 log_file $TMPC
705 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
706 }
707
708 check_cpp(){
709 log check_cpp "$@"
710 cat > $TMPC
711 log_file $TMPC
712 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
713 }
714
715 as_o(){
716 eval printf '%s\\n' $AS_O
717 }
718
719 check_as(){
720 log check_as "$@"
721 cat > $TMPS
722 log_file $TMPS
723 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
724 }
725
726 check_inline_asm(){
727 log check_inline_asm "$@"
728 name="$1"
729 code="$2"
730 shift 2
731 disable $name
732 check_cc "$@" <<EOF && enable $name
733 void foo(void){ __asm__ volatile($code); }
734 EOF
735 }
736
737 check_insn(){
738 log check_insn "$@"
739 check_inline_asm ${1}_inline "\"$2\""
740 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
741 }
742
743 check_yasm(){
744 log check_yasm "$@"
745 echo "$1" > $TMPS
746 log_file $TMPS
747 shift 1
748 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
749 }
750
751 ld_o(){
752 eval printf '%s\\n' $LD_O
753 }
754
755 check_ld(){
756 log check_ld "$@"
757 flags=$(filter_out '-l*' "$@")
758 libs=$(filter '-l*' "$@")
759 check_cc $($cflags_filter $flags) || return
760 flags=$($ldflags_filter $flags)
761 libs=$($ldflags_filter $libs)
762 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
763 }
764
765 check_code(){
766 log check_code "$@"
767 check=$1
768 headers=$2
769 code=$3
770 shift 3
771 {
772 for hdr in $headers; do
773 echo "#include <$hdr>"
774 done
775 echo "int main(void) { $code; return 0; }"
776 } | check_$check "$@"
777 }
778
779 check_cppflags(){
780 log check_cppflags "$@"
781 check_cc "$@" <<EOF && append CPPFLAGS "$@"
782 int x;
783 EOF
784 }
785
786 test_cflags(){
787 log test_cflags "$@"
788 set -- $($cflags_filter "$@")
789 check_cc "$@" <<EOF
790 int x;
791 EOF
792 }
793
794 check_cflags(){
795 log check_cflags "$@"
796 test_cflags "$@" && add_cflags "$@"
797 }
798
799 test_ldflags(){
800 log test_ldflags "$@"
801 check_ld "$@" <<EOF
802 int main(void){ return 0; }
803 EOF
804 }
805
806 check_ldflags(){
807 log check_ldflags "$@"
808 test_ldflags "$@" && add_ldflags "$@"
809 }
810
811 test_stripflags(){
812 log test_stripflags "$@"
813 # call check_cc to get a fresh TMPO
814 check_cc <<EOF
815 int main(void) { return 0; }
816 EOF
817 check_cmd $strip $STRIPFLAGS "$@" $TMPO
818 }
819
820 check_stripflags(){
821 log check_stripflags "$@"
822 test_stripflags "$@" && add_stripflags "$@"
823 }
824
825 check_header(){
826 log check_header "$@"
827 header=$1
828 shift
829 disable_safe $header
830 check_cpp "$@" <<EOF && enable_safe $header
831 #include <$header>
832 int x;
833 EOF
834 }
835
836 check_func(){
837 log check_func "$@"
838 func=$1
839 shift
840 disable $func
841 check_ld "$@" <<EOF && enable $func
842 extern int $func();
843 int main(void){ $func(); }
844 EOF
845 }
846
847 check_mathfunc(){
848 log check_mathfunc "$@"
849 func=$1
850 narg=$2
851 shift 2
852 test $narg = 2 && args="f, g" || args="f"
853 disable $func
854 check_ld "$@" <<EOF && enable $func
855 #include <math.h>
856 float foo(float f, float g) { return $func($args); }
857 int main(void){ return 0; }
858 EOF
859 }
860
861 check_func_headers(){
862 log check_func_headers "$@"
863 headers=$1
864 funcs=$2
865 shift 2
866 {
867 for hdr in $headers; do
868 echo "#include <$hdr>"
869 done
870 for func in $funcs; do
871 echo "long check_$func(void) { return (long) $func; }"
872 done
873 echo "int main(void) { return 0; }"
874 } | check_ld "$@" && enable $funcs && enable_safe $headers
875 }
876
877 check_cpp_condition(){
878 log check_cpp_condition "$@"
879 header=$1
880 condition=$2
881 shift 2
882 check_cpp "$@" <<EOF
883 #include <$header>
884 #if !($condition)
885 #error "unsatisfied condition: $condition"
886 #endif
887 EOF
888 }
889
890 check_lib(){
891 log check_lib "$@"
892 header="$1"
893 func="$2"
894 shift 2
895 check_header $header && check_func $func "$@" && add_extralibs "$@"
896 }
897
898 check_lib2(){
899 log check_lib2 "$@"
900 headers="$1"
901 funcs="$2"
902 shift 2
903 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
904 }
905
906 check_pkg_config(){
907 log check_pkg_config "$@"
908 pkg="$1"
909 headers="$2"
910 funcs="$3"
911 shift 3
912 check_cmd $pkg_config --exists --print-errors $pkg || return
913 pkg_cflags=$($pkg_config --cflags $pkg)
914 pkg_libs=$($pkg_config --libs $pkg)
915 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
916 set_safe ${pkg}_cflags $pkg_cflags &&
917 set_safe ${pkg}_libs $pkg_libs
918 }
919
920 check_exec(){
921 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
922 }
923
924 check_exec_crash(){
925 code=$(cat)
926
927 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
928 # are safe but may not be available everywhere. Thus we use
929 # raise(SIGTERM) instead. The check is run in a subshell so we
930 # can redirect the "Terminated" message from the shell. SIGBUS
931 # is not defined by standard C so it is used conditionally.
932
933 (check_exec "$@") >> $logfile 2>&1 <<EOF
934 #include <signal.h>
935 static void sighandler(int sig){
936 raise(SIGTERM);
937 }
938 int foo(void){
939 $code
940 }
941 int (*func_ptr)(void) = foo;
942 int main(void){
943 signal(SIGILL, sighandler);
944 signal(SIGFPE, sighandler);
945 signal(SIGSEGV, sighandler);
946 #ifdef SIGBUS
947 signal(SIGBUS, sighandler);
948 #endif
949 return func_ptr();
950 }
951 EOF
952 }
953
954 check_type(){
955 log check_type "$@"
956 headers=$1
957 type=$2
958 shift 2
959 disable_safe "$type"
960 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
961 }
962
963 check_struct(){
964 log check_struct "$@"
965 headers=$1
966 struct=$2
967 member=$3
968 shift 3
969 disable_safe "${struct}_${member}"
970 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
971 enable_safe "${struct}_${member}"
972 }
973
974 check_builtin(){
975 log check_builtin "$@"
976 name=$1
977 headers=$2
978 builtin=$3
979 shift 3
980 disable "$name"
981 check_code ld "$headers" "$builtin" "$@" && enable "$name"
982 }
983
984 require(){
985 name="$1"
986 header="$2"
987 func="$3"
988 shift 3
989 check_lib $header $func "$@" || die "ERROR: $name not found"
990 }
991
992 require2(){
993 name="$1"
994 headers="$2"
995 func="$3"
996 shift 3
997 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
998 }
999
1000 require_pkg_config(){
1001 pkg="$1"
1002 check_pkg_config "$@" || die "ERROR: $pkg not found"
1003 add_cflags $(get_safe ${pkg}_cflags)
1004 add_extralibs $(get_safe ${pkg}_libs)
1005 }
1006
1007 hostcc_e(){
1008 eval printf '%s\\n' $HOSTCC_E
1009 }
1010
1011 hostcc_o(){
1012 eval printf '%s\\n' $HOSTCC_O
1013 }
1014
1015 check_host_cc(){
1016 log check_host_cc "$@"
1017 cat > $TMPC
1018 log_file $TMPC
1019 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1020 }
1021
1022 check_host_cpp(){
1023 log check_host_cpp "$@"
1024 cat > $TMPC
1025 log_file $TMPC
1026 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1027 }
1028
1029 check_host_cppflags(){
1030 log check_host_cppflags "$@"
1031 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1032 int x;
1033 EOF
1034 }
1035
1036 check_host_cflags(){
1037 log check_host_cflags "$@"
1038 set -- $($host_cflags_filter "$@")
1039 check_host_cc "$@" <<EOF && append host_cflags "$@"
1040 int x;
1041 EOF
1042 }
1043
1044 check_host_cpp_condition(){
1045 log check_host_cpp_condition "$@"
1046 header=$1
1047 condition=$2
1048 shift 2
1049 check_host_cpp "$@" <<EOF
1050 #include <$header>
1051 #if !($condition)
1052 #error "unsatisfied condition: $condition"
1053 #endif
1054 EOF
1055 }
1056
1057 apply(){
1058 file=$1
1059 shift
1060 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1061 }
1062
1063 cp_if_changed(){
1064 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1065 mkdir -p "$(dirname $2)"
1066 $cp_f "$1" "$2"
1067 }
1068
1069 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1070 # system-dependent things.
1071
1072 COMPONENT_LIST="
1073 bsfs
1074 decoders
1075 demuxers
1076 encoders
1077 filters
1078 hwaccels
1079 indevs
1080 muxers
1081 outdevs
1082 parsers
1083 protocols
1084 "
1085
1086 EXAMPLE_LIST="
1087 output_example
1088 transcode_aac_example
1089 "
1090
1091 EXTERNAL_LIBRARY_LIST="
1092 avisynth
1093 bzlib
1094 frei0r
1095 gnutls
1096 libcdio
1097 libdc1394
1098 libfaac
1099 libfdk_aac
1100 libfreetype
1101 libgsm
1102 libilbc
1103 libmp3lame
1104 libopencore_amrnb
1105 libopencore_amrwb
1106 libopencv
1107 libopenjpeg
1108 libopus
1109 libpulse
1110 librtmp
1111 libschroedinger
1112 libspeex
1113 libtheora
1114 libvo_aacenc
1115 libvo_amrwbenc
1116 libvorbis
1117 libvpx
1118 libwavpack
1119 libx264
1120 libxavs
1121 libxvid
1122 openssl
1123 x11grab
1124 zlib
1125 "
1126
1127 HWACCEL_LIST="
1128 dxva2
1129 vaapi
1130 vda
1131 vdpau
1132 "
1133 LIBRARY_LIST="
1134 avcodec
1135 avdevice
1136 avfilter
1137 avformat
1138 avresample
1139 avutil
1140 swscale
1141 "
1142
1143 PROGRAM_LIST="
1144 avconv
1145 avplay
1146 avprobe
1147 avserver
1148 "
1149
1150 CONFIG_LIST="
1151 $COMPONENT_LIST
1152 $EXAMPLE_LIST
1153 $EXTERNAL_LIBRARY_LIST
1154 $HWACCEL_LIST
1155 $LIBRARY_LIST
1156 $PROGRAM_LIST
1157 dct
1158 doc
1159 error_resilience
1160 fft
1161 gpl
1162 gray
1163 hardcoded_tables
1164 lsp
1165 lzo
1166 mdct
1167 memalign_hack
1168 network
1169 nonfree
1170 pod2man
1171 pic
1172 rdft
1173 runtime_cpudetect
1174 safe_bitstream_reader
1175 shared
1176 small
1177 sram
1178 static
1179 swscale_alpha
1180 texi2html
1181 thumb
1182 version3
1183 xmm_clobber_test
1184 "
1185
1186 THREADS_LIST='
1187 pthreads
1188 w32threads
1189 '
1190
1191 ATOMICS_LIST='
1192 atomics_gcc
1193 atomics_suncc
1194 atomics_win32
1195 '
1196
1197 ARCH_LIST='
1198 aarch64
1199 alpha
1200 arm
1201 avr32
1202 avr32_ap
1203 avr32_uc
1204 bfin
1205 ia64
1206 m68k
1207 mips
1208 mips64
1209 parisc
1210 ppc
1211 ppc64
1212 s390
1213 sh4
1214 sparc
1215 sparc64
1216 tilegx
1217 tilepro
1218 tomi
1219 x86
1220 x86_32
1221 x86_64
1222 '
1223
1224 ARCH_EXT_LIST_ARM='
1225 armv5te
1226 armv6
1227 armv6t2
1228 neon
1229 vfp
1230 vfpv3
1231 '
1232
1233 ARCH_EXT_LIST_X86='
1234 amd3dnow
1235 amd3dnowext
1236 avx
1237 avx2
1238 fma4
1239 i686
1240 mmx
1241 mmxext
1242 sse
1243 sse2
1244 sse3
1245 sse4
1246 sse42
1247 ssse3
1248 '
1249
1250 ARCH_EXT_LIST="
1251 $ARCH_EXT_LIST_ARM
1252 $ARCH_EXT_LIST_X86
1253 altivec
1254 ppc4xx
1255 vis
1256 "
1257
1258 HAVE_LIST_CMDLINE='
1259 inline_asm
1260 symver
1261 yasm
1262 '
1263
1264 HAVE_LIST_PUB='
1265 bigendian
1266 fast_unaligned
1267 '
1268
1269 MATH_FUNCS="
1270 atanf
1271 atan2f
1272 cbrtf
1273 cosf
1274 exp2
1275 exp2f
1276 expf
1277 isinf
1278 isnan
1279 ldexpf
1280 llrint
1281 llrintf
1282 log2
1283 log2f
1284 log10f
1285 lrint
1286 lrintf
1287 powf
1288 rint
1289 round
1290 roundf
1291 sinf
1292 trunc
1293 truncf
1294 "
1295
1296 HAVE_LIST="
1297 $ARCH_EXT_LIST
1298 $(add_suffix _external $ARCH_EXT_LIST)
1299 $(add_suffix _inline $ARCH_EXT_LIST)
1300 $HAVE_LIST_CMDLINE
1301 $HAVE_LIST_PUB
1302 $THREADS_LIST
1303 $ATOMICS_LIST
1304 $MATH_FUNCS
1305 aligned_malloc
1306 aligned_stack
1307 alsa_asoundlib_h
1308 altivec_h
1309 arpa_inet_h
1310 asm_mod_q
1311 asm_mod_y
1312 atomic_cas_ptr
1313 atomics_native
1314 attribute_may_alias
1315 attribute_packed
1316 cdio_paranoia_h
1317 cdio_paranoia_paranoia_h
1318 closesocket
1319 CommandLineToArgvW
1320 cpunop
1321 CryptGenRandom
1322 dcbzl
1323 dev_bktr_ioctl_bt848_h
1324 dev_bktr_ioctl_meteor_h
1325 dev_ic_bt8xx_h
1326 dev_video_bktr_ioctl_bt848_h
1327 dev_video_meteor_ioctl_meteor_h
1328 direct_h
1329 dlfcn_h
1330 dlopen
1331 dos_paths
1332 dxva_h
1333 ebp_available
1334 ebx_available
1335 fast_64bit
1336 fast_clz
1337 fast_cmov
1338 fcntl
1339 fork
1340 getaddrinfo
1341 gethrtime
1342 getopt
1343 GetProcessAffinityMask
1344 GetProcessMemoryInfo
1345 GetProcessTimes
1346 GetSystemTimeAsFileTime
1347 getrusage
1348 getservbyport
1349 gettimeofday
1350 gnu_as
1351 gsm_h
1352 ibm_asm
1353 inet_aton
1354 io_h
1355 inline_asm_labels
1356 isatty
1357 jack_port_get_latency_range
1358 ldbrx
1359 libc_msvcrt
1360 libdc1394_1
1361 libdc1394_2
1362 local_aligned_16
1363 local_aligned_8
1364 localtime_r
1365 loongson
1366 machine_ioctl_bt848_h
1367 machine_ioctl_meteor_h
1368 machine_rw_barrier
1369 malloc_h
1370 MapViewOfFile
1371 memalign
1372 MemoryBarrier
1373 mkstemp
1374 mm_empty
1375 mmap
1376 mprotect
1377 nanosleep
1378 poll_h
1379 posix_memalign
1380 pragma_deprecated
1381 rdtsc
1382 sched_getaffinity
1383 sdl
1384 SetConsoleTextAttribute
1385 setmode
1386 setrlimit
1387 Sleep
1388 sndio_h
1389 socklen_t
1390 soundcard_h
1391 strerror_r
1392 strptime
1393 strtok_r
1394 struct_addrinfo
1395 struct_group_source_req
1396 struct_ip_mreq_source
1397 struct_ipv6_mreq
1398 struct_pollfd
1399 struct_rusage_ru_maxrss
1400 struct_sockaddr_in6
1401 struct_sockaddr_sa_len
1402 struct_sockaddr_storage
1403 struct_v4l2_frmivalenum_discrete
1404 symver_asm_label
1405 symver_gnu_asm
1406 sync_val_compare_and_swap
1407 sysconf
1408 sysctl
1409 sys_mman_h
1410 sys_param_h
1411 sys_resource_h
1412 sys_select_h
1413 sys_soundcard_h
1414 sys_time_h
1415 sys_un_h
1416 sys_videoio_h
1417 threads
1418 unistd_h
1419 usleep
1420 vdpau_x11
1421 vfp_args
1422 VirtualAlloc
1423 windows_h
1424 winsock2_h
1425 xform_asm
1426 xlib
1427 xmm_clobbers
1428 "
1429
1430 # options emitted with CONFIG_ prefix but not available on the command line
1431 CONFIG_EXTRA="
1432 aandcttables
1433 ac3dsp
1434 audio_frame_queue
1435 dsputil
1436 gcrypt
1437 golomb
1438 gplv3
1439 h263dsp
1440 h264chroma
1441 h264dsp
1442 h264pred
1443 h264qpel
1444 hpeldsp
1445 huffman
1446 lgplv3
1447 lpc
1448 mpegaudio
1449 mpegaudiodsp
1450 mpegvideo
1451 mpegvideoenc
1452 nettle
1453 rangecoder
1454 riffdec
1455 riffenc
1456 rtpdec
1457 rtpenc_chain
1458 sinewin
1459 videodsp
1460 vp3dsp
1461 "
1462
1463 CMDLINE_SELECT="
1464 $ARCH_EXT_LIST
1465 $CONFIG_LIST
1466 $HAVE_LIST_CMDLINE
1467 $THREADS_LIST
1468 asm
1469 cross_compile
1470 debug
1471 extra_warnings
1472 logging
1473 lto
1474 optimizations
1475 "
1476
1477 PATHS_LIST='
1478 bindir
1479 datadir
1480 docdir
1481 incdir
1482 libdir
1483 mandir
1484 prefix
1485 shlibdir
1486 '
1487
1488 CMDLINE_SET="
1489 $PATHS_LIST
1490 ar
1491 arch
1492 as
1493 build_suffix
1494 cc
1495 cpu
1496 cross_prefix
1497 dep_cc
1498 extra_version
1499 host_cc
1500 host_cflags
1501 host_ld
1502 host_ldflags
1503 host_libs
1504 host_os
1505 ld
1506 logfile
1507 malloc_prefix
1508 nm
1509 optflags
1510 pkg_config
1511 random_seed
1512 samples
1513 sysinclude
1514 sysroot
1515 target_exec
1516 target_os
1517 target_path
1518 target_samples
1519 toolchain
1520 "
1521
1522 CMDLINE_APPEND="
1523 extra_cflags
1524 host_cppflags
1525 "
1526
1527 # code dependency declarations
1528
1529 # architecture extensions
1530
1531 armv5te_deps="arm"
1532 armv6_deps="arm"
1533 armv6t2_deps="arm"
1534 neon_deps="arm"
1535 vfp_deps="arm"
1536 vfpv3_deps="vfp"
1537
1538 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1539
1540 altivec_deps="ppc"
1541 ppc4xx_deps="ppc"
1542
1543 vis_deps="sparc"
1544
1545 cpunop_deps="i686"
1546 x86_64_select="i686"
1547 x86_64_suggest="fast_cmov"
1548
1549 amd3dnow_deps="mmx"
1550 amd3dnowext_deps="amd3dnow"
1551 mmx_deps="x86"
1552 mmxext_deps="mmx"
1553 sse_deps="mmxext"
1554 sse2_deps="sse"
1555 sse3_deps="sse2"
1556 ssse3_deps="sse3"
1557 sse4_deps="ssse3"
1558 sse42_deps="sse4"
1559 avx_deps="sse42"
1560 fma4_deps="avx"
1561 avx2_deps="avx"
1562
1563 mmx_external_deps="yasm"
1564 mmx_inline_deps="inline_asm"
1565 mmx_suggest="mmx_external mmx_inline"
1566
1567 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1568 eval dep=\$${ext}_deps
1569 eval ${ext}_external_deps='"${dep}_external"'
1570 eval ${ext}_inline_deps='"${dep}_inline"'
1571 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1572 done
1573
1574 aligned_stack_if_any="ppc x86"
1575 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1576 fast_clz_if_any="alpha avr32 mips ppc x86"
1577 fast_unaligned_if_any="ppc x86"
1578
1579 need_memalign="altivec neon sse"
1580
1581 # system capabilities
1582 log2_deps="!libc_msvcrt"
1583
1584 symver_if_any="symver_asm_label symver_gnu_asm"
1585
1586 # threading support
1587 atomics_gcc_if="sync_val_compare_and_swap"
1588 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1589 atomics_win32_if="MemoryBarrier"
1590 atomics_native_if_any="$ATOMICS_LIST"
1591 threads_if_any="$THREADS_LIST"
1592
1593 # subsystems
1594 dct_select="rdft"
1595 error_resilience_select="dsputil"
1596 lpc_select="dsputil"
1597 mdct_select="fft"
1598 rdft_select="fft"
1599 mpegaudio_select="mpegaudiodsp"
1600 mpegaudiodsp_select="dct"
1601 mpegvideo_select="dsputil hpeldsp videodsp"
1602 mpegvideoenc_select="mpegvideo"
1603
1604 # decoders / encoders
1605 aac_decoder_select="mdct sinewin"
1606 aac_encoder_select="audio_frame_queue mdct sinewin"
1607 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1608 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1609 ac3_encoder_select="mdct ac3dsp dsputil"
1610 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1611 aic_decoder_select="dsputil golomb"
1612 alac_encoder_select="lpc"
1613 als_decoder_select="dsputil"
1614 amrnb_decoder_select="lsp"
1615 amrwb_decoder_select="lsp"
1616 amv_decoder_select="dsputil hpeldsp"
1617 ape_decoder_select="dsputil"
1618 asv1_decoder_select="dsputil"
1619 asv1_encoder_select="dsputil"
1620 asv2_decoder_select="dsputil"
1621 asv2_encoder_select="dsputil"
1622 atrac1_decoder_select="mdct sinewin"
1623 atrac3_decoder_select="mdct"
1624 bink_decoder_select="dsputil hpeldsp"
1625 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1626 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1627 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1628 cllc_decoder_select="dsputil"
1629 comfortnoise_encoder_select="lpc"
1630 cook_decoder_select="dsputil mdct sinewin"
1631 cscd_decoder_select="lzo"
1632 cscd_decoder_suggest="zlib"
1633 dca_decoder_select="mdct"
1634 dnxhd_decoder_select="dsputil"
1635 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1636 dvvideo_decoder_select="dsputil"
1637 dvvideo_encoder_select="dsputil"
1638 dxa_decoder_deps="zlib"
1639 eac3_decoder_select="ac3_decoder"
1640 eac3_encoder_select="ac3_encoder"
1641 eamad_decoder_select="aandcttables dsputil mpegvideo"
1642 eatgq_decoder_select="aandcttables dsputil"
1643 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1644 ffv1_decoder_select="dsputil golomb rangecoder"
1645 ffv1_encoder_select="dsputil rangecoder"
1646 ffvhuff_decoder_select="dsputil"
1647 ffvhuff_encoder_select="dsputil huffman"
1648 flac_decoder_select="golomb"
1649 flac_encoder_select="dsputil golomb lpc"
1650 flashsv_decoder_deps="zlib"
1651 flashsv_encoder_deps="zlib"
1652 flashsv2_decoder_deps="zlib"
1653 flv_decoder_select="h263_decoder"
1654 flv_encoder_select="h263_encoder"
1655 fourxm_decoder_select="dsputil"
1656 fraps_decoder_select="dsputil huffman"
1657 g2m_decoder_deps="zlib"
1658 g2m_decoder_select="dsputil"
1659 h261_decoder_select="error_resilience mpegvideo"
1660 h261_encoder_select="aandcttables mpegvideoenc"
1661 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1662 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1663 h263i_decoder_select="h263_decoder"
1664 h263p_encoder_select="h263_encoder"
1665 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1666 h264_decoder_suggest="error_resilience"
1667 hevc_decoder_select="dsputil golomb videodsp"
1668 huffyuv_decoder_select="dsputil"
1669 huffyuv_encoder_select="dsputil huffman"
1670 iac_decoder_select="dsputil fft mdct sinewin"
1671 imc_decoder_select="dsputil fft mdct sinewin"
1672 indeo3_decoder_select="hpeldsp"
1673 interplay_video_decoder_select="hpeldsp"
1674 jpegls_decoder_select="dsputil golomb hpeldsp"
1675 jpegls_encoder_select="golomb"
1676 jv_decoder_select="dsputil"
1677 lagarith_decoder_select="dsputil"
1678 ljpeg_encoder_select="aandcttables mpegvideoenc"
1679 loco_decoder_select="golomb"
1680 mdec_decoder_select="dsputil error_resilience mpegvideo"
1681 metasound_decoder_select="lsp mdct sinewin"
1682 mimic_decoder_select="dsputil hpeldsp"
1683 mjpeg_decoder_select="dsputil hpeldsp"
1684 mjpegb_decoder_select="dsputil hpeldsp"
1685 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1686 mlp_decoder_select="dsputil mlp_parser"
1687 motionpixels_decoder_select="dsputil"
1688 mp1_decoder_select="mpegaudio"
1689 mp1float_decoder_select="mpegaudio"
1690 mp2_decoder_select="mpegaudio"
1691 mp2float_decoder_select="mpegaudio"
1692 mp3_decoder_select="mpegaudio"
1693 mp3adu_decoder_select="mpegaudio"
1694 mp3adufloat_decoder_select="mpegaudio"
1695 mp3float_decoder_select="mpegaudio"
1696 mp3on4_decoder_select="mpegaudio"
1697 mp3on4float_decoder_select="mpegaudio"
1698 mpc7_decoder_select="dsputil mpegaudiodsp"
1699 mpc8_decoder_select="dsputil mpegaudiodsp"
1700 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1701 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1702 mpeg1video_decoder_select="error_resilience mpegvideo"
1703 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1704 mpeg2video_decoder_select="error_resilience mpegvideo"
1705 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1706 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1707 mpeg4_encoder_select="h263_encoder"
1708 msmpeg4v1_decoder_select="h263_decoder"
1709 msmpeg4v2_decoder_select="h263_decoder"
1710 msmpeg4v2_encoder_select="h263_encoder"
1711 msmpeg4v3_decoder_select="h263_decoder"
1712 msmpeg4v3_encoder_select="h263_encoder"
1713 mss2_decoder_select="error_resilience vc1_decoder"
1714 mxpeg_decoder_select="dsputil hpeldsp"
1715 nellymoser_decoder_select="mdct sinewin"
1716 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1717 nuv_decoder_select="dsputil lzo"
1718 png_decoder_deps="zlib"
1719 png_decoder_select="dsputil"
1720 png_encoder_deps="zlib"
1721 png_encoder_select="dsputil"
1722 prores_decoder_select="dsputil"
1723 prores_encoder_select="dsputil"
1724 qcelp_decoder_select="lsp"
1725 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1726 ra_144_encoder_select="audio_frame_queue lpc"
1727 ralf_decoder_select="golomb"
1728 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1729 rv10_encoder_select="h263_encoder"
1730 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1731 rv20_encoder_select="h263_encoder"
1732 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1733 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1734 shorten_decoder_select="golomb"
1735 sipr_decoder_select="lsp"
1736 sp5x_decoder_select="dsputil hpeldsp"
1737 svq1_decoder_select="hpeldsp"
1738 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1739 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1740 svq3_decoder_suggest="error_resilience zlib"
1741 tak_decoder_select="dsputil"
1742 theora_decoder_select="vp3_decoder"
1743 tiff_decoder_suggest="zlib"
1744 tiff_encoder_suggest="zlib"
1745 thp_decoder_select="dsputil hpeldsp"
1746 truehd_decoder_select="mlp_decoder"
1747 truemotion2_decoder_select="dsputil"
1748 truespeech_decoder_select="dsputil"
1749 tscc_decoder_deps="zlib"
1750 twinvq_decoder_select="mdct lsp sinewin"
1751 utvideo_decoder_select="dsputil"
1752 utvideo_encoder_select="dsputil huffman"
1753 vble_decoder_select="dsputil"
1754 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1755 vc1image_decoder_select="vc1_decoder"
1756 vorbis_decoder_select="mdct"
1757 vorbis_encoder_select="mdct"
1758 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1759 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1760 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1761 vp6a_decoder_select="vp6_decoder"
1762 vp6f_decoder_select="vp6_decoder"
1763 vp8_decoder_select="h264pred videodsp"
1764 vp9_decoder_select="videodsp"
1765 webp_decoder_select="vp8_decoder"
1766 wmapro_decoder_select="mdct sinewin"
1767 wmav1_decoder_select="mdct sinewin"
1768 wmav1_encoder_select="mdct sinewin"
1769 wmav2_decoder_select="mdct sinewin"
1770 wmav2_encoder_select="mdct sinewin"
1771 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1772 wmv1_decoder_select="h263_decoder"
1773 wmv1_encoder_select="h263_encoder"
1774 wmv2_decoder_select="h263_decoder videodsp"
1775 wmv2_encoder_select="h263_encoder"
1776 wmv3_decoder_select="vc1_decoder"
1777 wmv3image_decoder_select="wmv3_decoder"
1778 zerocodec_decoder_deps="zlib"
1779 zlib_decoder_deps="zlib"
1780 zlib_encoder_deps="zlib"
1781 zmbv_decoder_deps="zlib"
1782 zmbv_encoder_deps="zlib"
1783
1784 # hardware accelerators
1785 dxva2_deps="dxva2api_h"
1786 vaapi_deps="va_va_h"
1787 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1788 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1789 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1790
1791 h263_vaapi_hwaccel_deps="vaapi"
1792 h263_vaapi_hwaccel_select="h263_decoder"
1793 h263_vdpau_hwaccel_deps="vdpau"
1794 h263_vdpau_hwaccel_select="h263_decoder"
1795 h264_dxva2_hwaccel_deps="dxva2"
1796 h264_dxva2_hwaccel_select="h264_decoder"
1797 h264_vaapi_hwaccel_deps="vaapi"
1798 h264_vaapi_hwaccel_select="h264_decoder"
1799 h264_vda_hwaccel_deps="vda"
1800 h264_vda_hwaccel_select="h264_decoder"
1801 h264_vdpau_hwaccel_deps="vdpau"
1802 h264_vdpau_hwaccel_select="h264_decoder"
1803 mpeg1_vdpau_hwaccel_deps="vdpau"
1804 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1805 mpeg2_dxva2_hwaccel_deps="dxva2"
1806 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1807 mpeg2_vaapi_hwaccel_deps="vaapi"
1808 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1809 mpeg2_vdpau_hwaccel_deps="vdpau"
1810 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1811 mpeg4_vaapi_hwaccel_deps="vaapi"
1812 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1813 mpeg4_vdpau_hwaccel_deps="vdpau"
1814 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1815 vc1_dxva2_hwaccel_deps="dxva2"
1816 vc1_dxva2_hwaccel_select="vc1_decoder"
1817 vc1_vaapi_hwaccel_deps="vaapi"
1818 vc1_vaapi_hwaccel_select="vc1_decoder"
1819 vc1_vdpau_hwaccel_deps="vdpau"
1820 vc1_vdpau_hwaccel_select="vc1_decoder"
1821 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1822 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1823 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1824
1825 # parsers
1826 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1827 mpeg4video_parser_select="error_resilience mpegvideo"
1828 mpegvideo_parser_select="error_resilience mpegvideo"
1829 vc1_parser_select="mpegvideo"
1830
1831 # external libraries
1832 libfaac_encoder_deps="libfaac"
1833 libfaac_encoder_select="audio_frame_queue"
1834 libfdk_aac_decoder_deps="libfdk_aac"
1835 libfdk_aac_encoder_deps="libfdk_aac"
1836 libfdk_aac_encoder_select="audio_frame_queue"
1837 libgsm_decoder_deps="libgsm"
1838 libgsm_encoder_deps="libgsm"
1839 libgsm_ms_decoder_deps="libgsm"
1840 libgsm_ms_encoder_deps="libgsm"
1841 libilbc_decoder_deps="libilbc"
1842 libilbc_encoder_deps="libilbc"
1843 libmp3lame_encoder_deps="libmp3lame"
1844 libmp3lame_encoder_select="audio_frame_queue"
1845 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1846 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1847 libopencore_amrnb_encoder_select="audio_frame_queue"
1848 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1849 libopenjpeg_decoder_deps="libopenjpeg"
1850 libopenjpeg_encoder_deps="libopenjpeg"
1851 libopus_decoder_deps="libopus"
1852 libopus_encoder_deps="libopus"
1853 libopus_encoder_select="audio_frame_queue"
1854 libschroedinger_decoder_deps="libschroedinger"
1855 libschroedinger_encoder_deps="libschroedinger"
1856 libspeex_decoder_deps="libspeex"
1857 libspeex_encoder_deps="libspeex"
1858 libspeex_encoder_select="audio_frame_queue"
1859 libtheora_encoder_deps="libtheora"
1860 libvo_aacenc_encoder_deps="libvo_aacenc"
1861 libvo_aacenc_encoder_select="audio_frame_queue"
1862 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1863 libvorbis_encoder_deps="libvorbis"
1864 libvorbis_encoder_select="audio_frame_queue"
1865 libvpx_vp8_decoder_deps="libvpx"
1866 libvpx_vp8_encoder_deps="libvpx"
1867 libvpx_vp9_decoder_deps="libvpx"
1868 libvpx_vp9_encoder_deps="libvpx"
1869 libwavpack_encoder_deps="libwavpack"
1870 libx264_encoder_deps="libx264"
1871 libxavs_encoder_deps="libxavs"
1872 libxvid_encoder_deps="libxvid"
1873
1874 # demuxers / muxers
1875 ac3_demuxer_select="ac3_parser"
1876 asf_demuxer_select="riffdec"
1877 asf_muxer_select="riffenc"
1878 asf_stream_muxer_select="asf_muxer"
1879 avi_demuxer_select="riffdec"
1880 avi_muxer_select="riffenc"
1881 avisynth_demuxer_deps="avisynth"
1882 avisynth_demuxer_select="riffdec"
1883 caf_demuxer_select="riffdec"
1884 dirac_demuxer_select="dirac_parser"
1885 dxa_demuxer_select="riffdec"
1886 eac3_demuxer_select="ac3_parser"
1887 f4v_muxer_select="mov_muxer"
1888 flac_demuxer_select="flac_parser"
1889 hds_muxer_select="flv_muxer"
1890 hls_muxer_select="mpegts_muxer"
1891 ipod_muxer_select="mov_muxer"
1892 ismv_muxer_select="mov_muxer"
1893 matroska_audio_muxer_select="matroska_muxer"
1894 matroska_demuxer_select="riffdec"
1895 matroska_demuxer_suggest="bzlib lzo zlib"
1896 matroska_muxer_select="riffenc"
1897 mmf_muxer_select="riffenc"
1898 mov_demuxer_select="riffdec"
1899 mov_demuxer_suggest="zlib"
1900 mov_muxer_select="riffenc rtpenc_chain"
1901 mp3_demuxer_select="mpegaudio_parser"
1902 mp4_muxer_select="mov_muxer"
1903 mpegts_muxer_select="adts_muxer latm_muxer"
1904 mpegtsraw_demuxer_select="mpegts_demuxer"
1905 mxf_d10_muxer_select="mxf_muxer"
1906 nut_muxer_select="riffenc"
1907 nuv_demuxer_select="riffdec"
1908 ogg_demuxer_select="golomb"
1909 psp_muxer_select="mov_muxer"
1910 rtp_demuxer_select="sdp_demuxer"
1911 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1912 rtsp_demuxer_select="http_protocol rtpdec"
1913 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1914 sap_demuxer_select="sdp_demuxer"
1915 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1916 sdp_demuxer_select="rtpdec"
1917 smoothstreaming_muxer_select="ismv_muxer"
1918 spdif_muxer_select="aac_parser"
1919 tak_demuxer_select="tak_parser"
1920 tg2_muxer_select="mov_muxer"
1921 tgp_muxer_select="mov_muxer"
1922 w64_demuxer_select="wav_demuxer"
1923 wav_demuxer_select="riffdec"
1924 wav_muxer_select="riffenc"
1925 webm_muxer_select="riffenc"
1926 wtv_demuxer_select="riffdec"
1927 xmv_demuxer_select="riffdec"
1928 xwma_demuxer_select="riffdec"
1929
1930 # indevs / outdevs
1931 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1932 alsa_outdev_deps="alsa_asoundlib_h"
1933 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1934 dv1394_indev_deps="dv1394"
1935 dv1394_indev_select="dv_demuxer"
1936 fbdev_indev_deps="linux_fb_h"
1937 jack_indev_deps="jack_jack_h pthreads"
1938 libcdio_indev_deps="libcdio"
1939 libdc1394_indev_deps="libdc1394"
1940 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1941 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1942 pulse_indev_deps="libpulse"
1943 sndio_indev_deps="sndio_h"
1944 sndio_outdev_deps="sndio_h"
1945 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1946 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1947 vfwcap_indev_extralibs="-lavicap32"
1948 x11grab_indev_deps="x11grab XShmCreateImage"
1949
1950 # protocols
1951 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1952 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1953 ffrtmpcrypt_protocol_select="tcp_protocol"
1954 ffrtmphttp_protocol_deps="!librtmp_protocol"
1955 ffrtmphttp_protocol_select="http_protocol"
1956 gopher_protocol_select="network"
1957 httpproxy_protocol_select="tcp_protocol"
1958 http_protocol_select="tcp_protocol"
1959 https_protocol_select="tls_protocol"
1960 librtmp_protocol_deps="librtmp"
1961 librtmpe_protocol_deps="librtmp"
1962 librtmps_protocol_deps="librtmp"
1963 librtmpt_protocol_deps="librtmp"
1964 librtmpte_protocol_deps="librtmp"
1965 mmsh_protocol_select="http_protocol"
1966 mmst_protocol_select="network"
1967 rtmp_protocol_deps="!librtmp_protocol"
1968 rtmp_protocol_select="tcp_protocol"
1969 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1970 rtmps_protocol_deps="!librtmp_protocol"
1971 rtmps_protocol_select="tls_protocol"
1972 rtmpt_protocol_select="ffrtmphttp_protocol"
1973 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1974 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1975 rtp_protocol_select="udp_protocol"
1976 sctp_protocol_deps="struct_sctp_event_subscribe"
1977 sctp_protocol_select="network"
1978 srtp_protocol_select="rtp_protocol"
1979 tcp_protocol_select="network"
1980 tls_protocol_deps_any="openssl gnutls"
1981 tls_protocol_select="tcp_protocol"
1982 udp_protocol_select="network"
1983 unix_protocol_deps="sys_un_h"
1984 unix_protocol_select="network"
1985
1986 # filters
1987 blackframe_filter_deps="gpl"
1988 boxblur_filter_deps="gpl"
1989 cropdetect_filter_deps="gpl"
1990 delogo_filter_deps="gpl"
1991 drawtext_filter_deps="libfreetype"
1992 frei0r_filter_deps="frei0r dlopen strtok_r"
1993 frei0r_filter_extralibs='$ldl'
1994 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1995 frei0r_src_filter_extralibs='$ldl'
1996 hqdn3d_filter_deps="gpl"
1997 interlace_filter_deps="gpl"
1998 resample_filter_deps="avresample"
1999 ocv_filter_deps="libopencv"
2000 scale_filter_deps="swscale"
2001 yadif_filter_deps="gpl"
2002
2003 # examples
2004 output_example_deps="avcodec avformat avutil swscale"
2005 transcode_aac_example_deps="avcodec avformat avresample"
2006
2007 # libraries
2008 avcodec_deps="avutil"
2009 avdevice_deps="avutil avcodec avformat"
2010 avfilter_deps="avutil"
2011 avformat_deps="avutil avcodec"
2012 avresample_deps="avutil"
2013 swscale_deps="avutil"
2014
2015 # programs
2016 avconv_deps="avcodec avfilter avformat avresample swscale"
2017 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2018 fps_filter null_filter resample_filter scale_filter
2019 setpts_filter trim_filter"
2020 avplay_deps="avcodec avformat avresample swscale sdl"
2021 avplay_select="rdft"
2022 avprobe_deps="avcodec avformat"
2023 avserver_deps="avformat fork !shared"
2024 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2025 avserver_extralibs='$ldl'
2026
2027 # documentation
2028 pod2man_deps="doc"
2029 texi2html_deps="doc"
2030
2031 # default parameters
2032
2033 logfile="config.log"
2034
2035 # installation paths
2036 prefix_default="/usr/local"
2037 bindir_default='${prefix}/bin'
2038 datadir_default='${prefix}/share/avconv'
2039 docdir_default='${prefix}/share/doc/libav'
2040 incdir_default='${prefix}/include'
2041 libdir_default='${prefix}/lib'
2042 mandir_default='${prefix}/share/man'
2043 shlibdir_default="$libdir_default"
2044
2045 # toolchain
2046 ar_default="ar"
2047 cc_default="gcc"
2048 host_cc_default="gcc"
2049 cp_f="cp -f"
2050 ln_s="ln -s -f"
2051 nm_default="nm -g"
2052 objformat="elf"
2053 pkg_config_default=pkg-config
2054 ranlib="ranlib"
2055 strip="strip"
2056 yasmexe="yasm"
2057
2058 nogas=":"
2059
2060 # machine
2061 arch_default=$(uname -m)
2062 cpu="generic"
2063
2064 # OS
2065 target_os_default=$(tolower $(uname -s))
2066 host_os=$target_os_default
2067
2068 # configurable options
2069 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2070
2071 enable asm
2072 enable debug
2073 enable doc
2074 enable optimizations
2075 enable safe_bitstream_reader
2076 enable static
2077 enable swscale_alpha
2078
2079 # By default, enable only those hwaccels that have no external dependencies.
2080 enable dxva2 vdpau
2081
2082 # build settings
2083 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2084 LIBPREF="lib"
2085 LIBSUF=".a"
2086 FULLNAME='$(NAME)$(BUILDSUF)'
2087 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2088 SLIBPREF="lib"
2089 SLIBSUF=".so"
2090 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2091 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2092 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2093 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2094 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2095 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2096
2097 asflags_filter=echo
2098 cflags_filter=echo
2099 ldflags_filter=echo
2100
2101 AS_C='-c'
2102 AS_O='-o $@'
2103 CC_C='-c'
2104 CC_E='-E -o $@'
2105 CC_O='-o $@'
2106 LD_O='-o $@'
2107 LD_LIB='-l%'
2108 LD_PATH='-L'
2109 HOSTCC_C='-c'
2110 HOSTCC_E='-E -o $@'
2111 HOSTCC_O='-o $@'
2112 HOSTLD_O='-o $@'
2113
2114 host_cflags='-O3'
2115 host_cppflags='-D_ISOC99_SOURCE'
2116 host_libs='-lm'
2117 host_cflags_filter=echo
2118 host_ldflags_filter=echo
2119
2120 target_path='$(CURDIR)'
2121
2122 # since the object filename is not given with the -MM flag, the compiler
2123 # is only able to print the basename, and we must add the path ourselves
2124 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2125 DEPFLAGS='-MM'
2126
2127 # find source path
2128 if test -f configure; then
2129 source_path=.
2130 else
2131 source_path=$(cd $(dirname "$0"); pwd)
2132 echo "$source_path" | grep -q '[[:blank:]]' &&
2133 die "Out of tree builds are impossible with whitespace in source path."
2134 test -e "$source_path/config.h" &&
2135 die "Out of tree builds are impossible with config.h in source dir."
2136 fi
2137
2138 for v in "$@"; do
2139 r=${v#*=}
2140 l=${v%"$r"}
2141 r=$(sh_quote "$r")
2142 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2143 done
2144
2145 find_things(){
2146 thing=$1
2147 pattern=$2
2148 file=$source_path/$3
2149 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2150 }
2151
2152 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2153 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2154 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2155 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2156 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2157 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2158 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2159 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2160 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2161 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2162 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2163
2164 ALL_COMPONENTS="
2165 $BSF_LIST
2166 $DECODER_LIST
2167 $DEMUXER_LIST
2168 $ENCODER_LIST
2169 $FILTER_LIST
2170 $HWACCEL_LIST
2171 $INDEV_LIST
2172 $MUXER_LIST
2173 $OUTDEV_LIST
2174 $PARSER_LIST
2175 $PROTOCOL_LIST
2176 "
2177
2178 for n in $COMPONENT_LIST; do
2179 v=$(toupper ${n%s})_LIST
2180 eval enable \$$v
2181 eval ${n}_if_any="\$$v"
2182 done
2183
2184 enable $ARCH_EXT_LIST
2185
2186 die_unknown(){
2187 echo "Unknown option \"$1\"."
2188 echo "See $0 --help for available options."
2189 exit 1
2190 }
2191
2192 print_3_columns() {
2193 cat | tr ' ' '\n' | sort | pr -r -3 -t
2194 }
2195
2196 show_list() {
2197 suffix=_$1
2198 shift
2199 echo $* | sed s/$suffix//g | print_3_columns
2200 exit 0
2201 }
2202
2203 rand_list(){
2204 IFS=', '
2205 set -- $*
2206 unset IFS
2207 for thing; do
2208 comp=${thing%:*}
2209 prob=${thing#$comp}
2210 prob=${prob#:}
2211 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2212 echo "prob ${prob:-0.5}"
2213 printf '%s\n' $comp
2214 done
2215 }
2216
2217 do_random(){
2218 action=$1
2219 shift
2220 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2221 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2222 }
2223
2224 for opt do
2225 optval="${opt#*=}"
2226 case "$opt" in
2227 --extra-ldflags=*)
2228 add_ldflags $optval
2229 ;;
2230 --extra-libs=*)
2231 add_extralibs $optval
2232 ;;
2233 --disable-devices)
2234 disable $INDEV_LIST $OUTDEV_LIST
2235 ;;
2236 --enable-debug=*)
2237 debuglevel="$optval"
2238 ;;
2239 --disable-programs)
2240 disable $PROGRAM_LIST
2241 ;;
2242 --disable-everything)
2243 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2244 ;;
2245 --disable-all)
2246 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2247 disable $LIBRARY_LIST $PROGRAM_LIST doc
2248 ;;
2249 --enable-random|--disable-random)
2250 action=${opt%%-random}
2251 do_random ${action#--} $COMPONENT_LIST
2252 ;;
2253 --enable-random=*|--disable-random=*)
2254 action=${opt%%-random=*}
2255 do_random ${action#--} $optval
2256 ;;
2257 --enable-*=*|--disable-*=*)
2258 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2259 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2260 eval list=\$$(toupper $thing)_LIST
2261 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2262 $action $(filter "$name" $list)
2263 ;;
2264 --enable-?*|--disable-?*)
2265 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2266 if is_in $option $COMPONENT_LIST; then
2267 test $action = disable && action=unset
2268 eval $action \$$(toupper ${option%s})_LIST
2269 elif is_in $option $CMDLINE_SELECT; then
2270 $action $option
2271 else
2272 die_unknown $opt
2273 fi
2274 ;;
2275 --list-*)
2276 NAME="${opt#--list-}"
2277 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2278 NAME=${NAME%s}
2279 eval show_list $NAME \$$(toupper $NAME)_LIST
2280 ;;
2281 --help|-h) show_help
2282 ;;
2283 *)
2284 optname="${opt%%=*}"
2285 optname="${optname#--}"
2286 optname=$(echo "$optname" | sed 's/-/_/g')
2287 if is_in $optname $CMDLINE_SET; then
2288 eval $optname='$optval'
2289 elif is_in $optname $CMDLINE_APPEND; then
2290 append $optname "$optval"
2291 else
2292 die_unknown $opt
2293 fi
2294 ;;
2295 esac
2296 done
2297
2298 disabled logging && logfile=/dev/null
2299
2300 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2301 set >> $logfile
2302
2303 test -n "$cross_prefix" && enable cross_compile
2304
2305 if enabled cross_compile; then
2306 test -n "$arch" && test -n "$target_os" ||
2307 die "Must specify target arch and OS when cross-compiling"
2308 fi
2309
2310 ar_default="${cross_prefix}${ar_default}"
2311 cc_default="${cross_prefix}${cc_default}"
2312 nm_default="${cross_prefix}${nm_default}"
2313 pkg_config_default="${cross_prefix}${pkg_config_default}"
2314 ranlib="${cross_prefix}${ranlib}"
2315 strip="${cross_prefix}${strip}"
2316
2317 sysinclude_default="${sysroot}/usr/include"
2318
2319 case "$toolchain" in
2320 clang-asan)
2321 cc_default="clang"
2322 add_cflags -fsanitize=address
2323 add_ldflags -fsanitize=address
2324 ;;
2325 clang-tsan)
2326 cc_default="clang"
2327 add_cflags -fsanitize=thread -pie
2328 add_ldflags -fsanitize=thread -pie
2329 ;;
2330 gcc-asan)
2331 cc_default="gcc"
2332 add_cflags -fsanitize=address
2333 add_ldflags -fsanitize=address
2334 ;;
2335 gcc-tsan)
2336 cc_default="gcc"
2337 add_cflags -fsanitize=thread -pie -fPIC
2338 add_ldflags -fsanitize=thread -pie -fPIC
2339 ;;
2340 valgrind-massif)
2341 target_exec_default="valgrind"
2342 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2343 ;;
2344 valgrind-memcheck)
2345 target_exec_default="valgrind"
2346 target_exec_args="--track-origins=yes --leak-check=full"
2347 ;;
2348 msvc)
2349 # Check whether the current MSVC version needs the C99 converter.
2350 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2351 # support enough of C99 to build libav. Default to the new
2352 # behaviour if the regexp was unable to match anything, since this
2353 # successfully parses the version number of existing supported
2354 # versions that require the converter (MSVC 2010 and 2012).
2355 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2356 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2357 cc_default="cl"
2358 else
2359 cc_default="c99wrap cl"
2360 fi
2361 ld_default="link"
2362 nm_default="dumpbin -symbols"
2363 ar_default="lib"
2364 target_os_default="win32"
2365 # Use a relative path for TMPDIR. This makes sure all the
2366 # ffconf temp files are written with a relative path, avoiding
2367 # issues with msys/win32 path conversion for MSVC parameters
2368 # such as -Fo<file> or -out:<file>.
2369 TMPDIR=.
2370 ;;
2371 icl)
2372 cc_default="icl"
2373 ld_default="xilink"
2374 nm_default="dumpbin -symbols"
2375 ar_default="xilib"
2376 target_os_default="win32"
2377 TMPDIR=.
2378 ;;
2379 gcov)
2380 add_cflags -fprofile-arcs -ftest-coverage
2381 add_ldflags -fprofile-arcs -ftest-coverage
2382 ;;
2383 hardened)
2384 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2385 add_ldflags -Wl,-z,relro -Wl,-z,now
2386 ;;
2387 ?*)
2388 die "Unknown toolchain $toolchain"
2389 ;;
2390 esac
2391
2392 set_default arch cc pkg_config sysinclude target_exec target_os
2393 enabled cross_compile || host_cc_default=$cc
2394 set_default host_cc
2395
2396 if ! $pkg_config --version >/dev/null 2>&1; then
2397 warn "$pkg_config not found, library detection may fail."
2398 pkg_config=false
2399 fi
2400
2401 exesuf() {
2402 case $1 in
2403 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2404 esac
2405 }
2406
2407 EXESUF=$(exesuf $target_os)
2408 HOSTEXESUF=$(exesuf $host_os)
2409
2410 # set temporary file name
2411 : ${TMPDIR:=$TEMPDIR}
2412 : ${TMPDIR:=$TMP}
2413 : ${TMPDIR:=/tmp}
2414
2415 if ! check_cmd mktemp -u XXXXXX; then
2416 # simple replacement for missing mktemp
2417 # NOT SAFE FOR GENERAL USE
2418 mktemp(){
2419 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2420 }
2421 fi
2422
2423 tmpfile(){
2424 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2425 (set -C; exec > $tmp) 2>/dev/null ||
2426 die "Unable to create temporary file in $TMPDIR."
2427 append TMPFILES $tmp
2428 eval $1=$tmp
2429 }
2430
2431 trap 'rm -f -- $TMPFILES' EXIT
2432
2433 tmpfile TMPASM .asm
2434 tmpfile TMPC .c
2435 tmpfile TMPE $EXESUF
2436 tmpfile TMPH .h
2437 tmpfile TMPO .o
2438 tmpfile TMPS .S
2439 tmpfile TMPSH .sh
2440 tmpfile TMPV .ver
2441
2442 unset -f mktemp
2443
2444 chmod +x $TMPE
2445
2446 # make sure we can execute files in $TMPDIR
2447 cat > $TMPSH 2>> $logfile <<EOF
2448 #! /bin/sh
2449 EOF
2450 chmod +x $TMPSH >> $logfile 2>&1
2451 if ! $TMPSH >> $logfile 2>&1; then
2452 cat <<EOF
2453 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2454 variable to another directory and make sure that it is not mounted noexec.
2455 EOF
2456 die "Sanity test failed."
2457 fi
2458
2459 ccc_flags(){
2460 for flag; do
2461 case $flag in
2462 -std=c99) echo -c99 ;;
2463 -mcpu=*) echo -arch ${flag#*=} ;;
2464 -mieee) echo -ieee ;;
2465 -O*|-fast) echo $flag ;;
2466 -fno-math-errno) echo -assume nomath_errno ;;
2467 -g) echo -g3 ;;
2468 -Wall) echo -msg_enable level2 ;;
2469 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2470 -Wl,*) echo $flag ;;
2471 -f*|-W*) ;;
2472 *) echo $flag ;;
2473 esac
2474 done
2475 }
2476
2477 cparser_flags(){
2478 for flag; do
2479 case $flag in
2480 -Wno-switch) echo -Wno-switch-enum ;;
2481 -Wno-format-zero-length) ;;
2482 -Wdisabled-optimization) ;;
2483 -Wno-pointer-sign) echo -Wno-other ;;
2484 *) echo $flag ;;
2485 esac
2486 done
2487 }
2488
2489 msvc_common_flags(){
2490 for flag; do
2491 case $flag in
2492 # In addition to specifying certain flags under the compiler
2493 # specific filters, they must be specified here as well or else the
2494 # generic catch all at the bottom will print the original flag.
2495 -Wall) ;;
2496 -std=c99) ;;
2497 # Common flags
2498 -fomit-frame-pointer) ;;
2499 -g) echo -Z7 ;;
2500 -fno-math-errno) ;;
2501 -fno-common) ;;
2502 -fno-signed-zeros) ;;
2503 -fPIC) ;;
2504 -mthumb) ;;
2505 -march=*) ;;
2506 -lz) echo zlib.lib ;;
2507 -lavifil32) echo vfw32.lib ;;
2508 -lavicap32) echo vfw32.lib user32.lib ;;
2509 -l*) echo ${flag#-l}.lib ;;
2510 *) echo $flag ;;
2511 esac
2512 done
2513 }
2514
2515 msvc_flags(){
2516 msvc_common_flags "$@"
2517 for flag; do
2518 case $flag in
2519 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2520 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2521 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2522 -wd4273 ;;
2523 esac
2524 done
2525 }
2526
2527 icl_flags(){
2528 msvc_common_flags "$@"
2529 for flag; do
2530 case $flag in
2531 # Despite what Intel's documentation says -Wall, which is supported
2532 # on Windows, does enable remarks so disable them here.
2533 -Wall) echo $flag -Qdiag-disable:remark ;;
2534 -std=c99) echo -Qstd=c99 ;;
2535 esac
2536 done
2537 }
2538
2539 pgi_flags(){
2540 for flag; do
2541 case $flag in
2542 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2543 -fomit-frame-pointer) echo -Mnoframe ;;
2544 -g) echo -gopt ;;
2545 *) echo $flag ;;
2546 esac
2547 done
2548 }
2549
2550 suncc_flags(){
2551 for flag; do
2552 case $flag in
2553 -march=*|-mcpu=*)
2554 case "${flag#*=}" in
2555 native) echo -xtarget=native ;;
2556 v9|niagara) echo -xarch=sparc ;;
2557 ultrasparc) echo -xarch=sparcvis ;;
2558 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2559 i586|pentium) echo -xchip=pentium ;;
2560 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2561 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2562 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2563 pentium4*) echo -xtarget=pentium4 ;;
2564 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2565 *-sse3) echo -xarch=sse3 ;;
2566 core2) echo -xarch=ssse3 -xchip=core2 ;;
2567 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2568 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2569 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2570 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2571 k8|opteron|athlon64|athlon-fx)
2572 echo -xarch=sse2a ;;
2573 athlon*) echo -xarch=pentium_proa ;;
2574 esac
2575 ;;
2576 -std=c99) echo -xc99 ;;
2577 -fomit-frame-pointer) echo -xregs=frameptr ;;
2578 -fPIC) echo -KPIC -xcode=pic32 ;;
2579 -W*,*) echo $flag ;;
2580 -f*-*|-W*|-mimpure-text) ;;
2581 -shared) echo -G ;;
2582 *) echo $flag ;;
2583 esac
2584 done
2585 }
2586
2587 tms470_flags(){
2588 for flag; do
2589 case $flag in
2590 -march=*|-mcpu=*)
2591 case "${flag#*=}" in
2592 armv7-a|cortex-a*) echo -mv=7a8 ;;
2593 armv7-r|cortex-r*) echo -mv=7r4 ;;
2594 armv7-m|cortex-m*) echo -mv=7m3 ;;
2595 armv6*|arm11*) echo -mv=6 ;;
2596 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2597 echo -mv=5e ;;
2598 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2599 esac
2600 ;;
2601 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2602 -mfpu=vfp) echo --float_support=vfpv2 ;;
2603 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2604 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2605 -msoft-float) echo --float_support=vfplib ;;
2606 -O[0-3]|-mf=*) echo $flag ;;
2607 -g) echo -g -mn ;;
2608 -pds=*) echo $flag ;;
2609 -D*|-I*) echo $flag ;;
2610 --gcc|--abi=*) echo $flag ;;
2611 -me) echo $flag ;;
2612 esac
2613 done
2614 }
2615
2616 probe_cc(){
2617 pfx=$1
2618 _cc=$2
2619
2620 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2621 unset _ld_o _ldflags _ld_lib _ld_path
2622 unset _depflags _DEPCMD _DEPFLAGS
2623 _flags_filter=echo
2624
2625 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2626 _type=llvm_gcc
2627 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2628 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2629 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2630 _cflags_speed='-O3'
2631 _cflags_size='-Os'
2632 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2633 _type=gcc
2634 gcc_version=$($_cc --version | head -n1)
2635 gcc_basever=$($_cc -dumpversion)
2636 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2637 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2638 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2639 if ! $_cc -dumpversion | grep -q '^2\.'; then
2640 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2641 fi
2642 _cflags_speed='-O3'
2643 _cflags_size='-Os'
2644 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2645 _type=icc
2646 _ident=$($_cc --version | head -n1)
2647 _depflags='-MMD'
2648 _cflags_speed='-O3'
2649 _cflags_size='-Os'
2650 _cflags_noopt='-O1'
2651 elif $_cc -v 2>&1 | grep -q xlc; then
2652 _type=xlc
2653 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2654 _cflags_speed='-O5'
2655 _cflags_size='-O5 -qcompact'
2656 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2657 _type=ccc
2658 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2659 _DEPFLAGS='-M'
2660 _cflags_speed='-fast'
2661 _cflags_size='-O1'
2662 _flags_filter=ccc_flags
2663 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2664 test -d "$sysroot" || die "No valid sysroot specified."
2665 _type=armcc
2666 _ident=$($_cc --vsn | head -n1)
2667 armcc_conf="$PWD/armcc.conf"
2668 $_cc --arm_linux_configure \
2669 --arm_linux_config_file="$armcc_conf" \
2670 --configure_sysroot="$sysroot" \
2671 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2672 die "Error creating armcc configuration file."
2673 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2674 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2675 as_default="${cross_prefix}gcc"
2676 _depflags='-MMD'
2677 _cflags_speed='-O3'
2678 _cflags_size='-Os'
2679 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2680 _type=tms470
2681 _ident=$($_cc -version | head -n1 | tr -s ' ')
2682 _flags='--gcc --abi=eabi -me'
2683 _cc_e='-ppl -fe=$@'
2684 _cc_o='-fe=$@'
2685 _depflags='-ppa -ppd=$(@:.o=.d)'
2686 _cflags_speed='-O3 -mf=5'
2687 _cflags_size='-O3 -mf=2'
2688 _flags_filter=tms470_flags
2689 elif $_cc -v 2>&1 | grep -q clang; then
2690 _type=clang
2691 _ident=$($_cc --version | head -n1)
2692 _depflags='-MMD'
2693 _cflags_speed='-O3'
2694 _cflags_size='-Os'
2695 elif $_cc -V 2>&1 | grep -q Sun; then
2696 _type=suncc
2697 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2698 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2699 _DEPFLAGS='-xM1 -xc99'
2700 _ldflags='-std=c99'
2701 _cflags_speed='-O5'
2702 _cflags_size='-O5 -xspace'
2703 _flags_filter=suncc_flags
2704 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2705 _type=pathscale
2706 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2707 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2708 _cflags_speed='-O2'
2709 _cflags_size='-Os'
2710 _flags_filter='filter_out -Wdisabled-optimization'
2711 elif $_cc -v 2>&1 | grep -q Open64; then
2712 _type=open64
2713 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2714 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2715 _cflags_speed='-O2'
2716 _cflags_size='-Os'
2717 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2718 elif $_cc -V 2>&1 | grep -q Portland; then
2719 _type=pgi
2720 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2721 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2722 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2723 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2724 _cflags_noopt="-O1"
2725 _flags_filter=pgi_flags
2726 elif $_cc 2>&1 | grep -q Microsoft; then
2727 _type=msvc
2728 _ident=$($cc 2>&1 | head -n1)
2729 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2730 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2731 _cflags_speed="-O2"
2732 _cflags_size="-O1"
2733 if $_cc 2>&1 | grep -q Linker; then
2734 _ld_o='-out:$@'
2735 else
2736 _ld_o='-Fe$@'
2737 fi
2738 _cc_o='-Fo$@'
2739 _cc_e='-P -Fi$@'
2740 _flags_filter=msvc_flags
2741 _ld_lib='lib%.a'
2742 _ld_path='-libpath:'
2743 _flags='-nologo'
2744 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2745 if [ $pfx = hostcc ]; then
2746 append _cflags -Dsnprintf=_snprintf
2747 fi
2748 elif $_cc 2>&1 | grep -q Intel; then
2749 _type=icl
2750 _ident=$($cc 2>&1 | head -n1)
2751 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2752 # Not only is O3 broken on 13.x+ but it is slower on all previous
2753 # versions (tested) as well.
2754 _cflags_speed="-O2"
2755 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2756 if $_cc 2>&1 | grep -q Linker; then
2757 _ld_o='-out:$@'
2758 else
2759 _ld_o='-Fe$@'
2760 fi
2761 _cc_o='-Fo$@'
2762 _cc_e='-P'
2763 _flags_filter=icl_flags
2764 _ld_lib='lib%.a'
2765 _ld_path='-libpath:'
2766 # -Qdiag-error to make icl error when seeing certain unknown arguments
2767 _flags='-nologo -Qdiag-error:4044,10157'
2768 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2769 # with MSVC which enables it by default.
2770 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2771 if [ $pfx = hostcc ]; then
2772 append _cflags -Dsnprintf=_snprintf
2773 fi
2774 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2775 _type=cparser
2776 _ident=$($_cc --version | head -n1)
2777 _depflags='-MMD'
2778 _cflags_speed='-O4'
2779 _cflags_size='-O2'
2780 _flags_filter=cparser_flags
2781 fi
2782
2783 eval ${pfx}_type=\$_type
2784 eval ${pfx}_ident=\$_ident
2785 }
2786
2787 set_ccvars(){
2788 eval ${1}_C=\${_cc_c-\${${1}_C}}
2789 eval ${1}_E=\${_cc_e-\${${1}_E}}
2790 eval ${1}_O=\${_cc_o-\${${1}_O}}
2791
2792 if [ -n "$_depflags" ]; then
2793 eval ${1}_DEPFLAGS=\$_depflags
2794 else
2795 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2796 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2797 eval DEP${1}FLAGS=\$_flags
2798 fi
2799 }
2800
2801 probe_cc cc "$cc"
2802 cflags_filter=$_flags_filter
2803 cflags_speed=$_cflags_speed
2804 cflags_size=$_cflags_size
2805 cflags_noopt=$_cflags_noopt
2806 add_cflags $_flags $_cflags
2807 cc_ldflags=$_ldflags
2808 set_ccvars CC
2809
2810 probe_cc hostcc "$host_cc"
2811 host_cflags_filter=$_flags_filter
2812 add_host_cflags $_flags $_cflags
2813 set_ccvars HOSTCC
2814
2815 test -n "$cc_type" && enable $cc_type ||
2816 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2817
2818 : ${as_default:=$cc}
2819 : ${dep_cc_default:=$cc}
2820 : ${ld_default:=$cc}
2821 : ${host_ld_default:=$host_cc}
2822 set_default ar as dep_cc ld host_ld
2823
2824 probe_cc as "$as"
2825 asflags_filter=$_flags_filter
2826 add_asflags $_flags $_cflags
2827 set_ccvars AS
2828
2829 probe_cc ld "$ld"
2830 ldflags_filter=$_flags_filter
2831 add_ldflags $_flags $_ldflags
2832 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2833 LD_O=${_ld_o-$LD_O}
2834 LD_LIB=${_ld_lib-$LD_LIB}
2835 LD_PATH=${_ld_path-$LD_PATH}
2836
2837 probe_cc hostld "$host_ld"
2838 host_ldflags_filter=$_flags_filter
2839 add_host_ldflags $_flags $_ldflags
2840 HOSTLD_O=${_ld_o-$HOSTLD_O}
2841
2842 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2843 probe_cc depcc "$dep_cc"
2844 CCDEP=${_DEPCMD:-$DEPCMD}
2845 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2846 DEPCCFLAGS=$_flags
2847 fi
2848
2849 if $ar 2>&1 | grep -q Microsoft; then
2850 arflags="-nologo"
2851 ar_o='-out:$@'
2852 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2853 arflags="rq"
2854 ar_o='$@'
2855 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2856 arflags='-Xany -r -c'
2857 ar_o='$@'
2858 else
2859 arflags="rc"
2860 ar_o='$@'
2861 fi
2862
2863 add_cflags $extra_cflags
2864 add_asflags $extra_cflags
2865
2866 if test -n "$sysroot"; then
2867 case "$cc_type" in
2868 gcc|llvm_gcc|clang)
2869 add_cppflags --sysroot="$sysroot"
2870 add_ldflags --sysroot="$sysroot"
2871 ;;
2872 tms470)
2873 add_cppflags -I"$sysinclude"
2874 add_ldflags --sysroot="$sysroot"
2875 ;;
2876 esac
2877 fi
2878
2879 if test "$cpu" = host; then
2880 enabled cross_compile &&
2881 die "--cpu=host makes no sense when cross-compiling."
2882
2883 case "$cc_type" in
2884 gcc|llvm_gcc)
2885 check_native(){
2886 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2887 sed -n "/cc1.*$1=/{
2888 s/.*$1=\\([^ ]*\\).*/\\1/
2889 p
2890 q
2891 }" $TMPE
2892 }
2893 cpu=$(check_native -march || check_native -mcpu)
2894 ;;
2895 esac
2896
2897 test "${cpu:-host}" = host &&
2898 die "--cpu=host not supported with compiler $cc"
2899 fi
2900
2901 # Deal with common $arch aliases
2902 case "$arch" in
2903 aarch64|arm64)
2904 arch="aarch64"
2905 ;;
2906 arm*)
2907 arch="arm"
2908 ;;
2909 mips*|IP*)
2910 arch="mips"
2911 ;;
2912 parisc*|hppa*)
2913 arch="parisc"
2914 ;;
2915 "Power Macintosh"|ppc*|powerpc*)
2916 arch="ppc"
2917 ;;
2918 s390|s390x)
2919 arch="s390"
2920 ;;
2921 sh4|sh)
2922 arch="sh4"
2923 ;;
2924 sun4u|sparc*)
2925 arch="sparc"
2926 ;;
2927 tilegx|tile-gx)
2928 arch="tilegx"
2929 ;;
2930 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2931 arch="x86"
2932 ;;
2933 esac
2934
2935 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2936 enable $arch
2937
2938 # Add processor-specific flags
2939 if enabled aarch64; then
2940
2941 case $cpu in
2942 armv*)
2943 cpuflags="-march=$cpu"
2944 ;;
2945 *)
2946 cpuflags="-mcpu=$cpu"
2947 ;;
2948 esac
2949
2950 elif enabled alpha; then
2951
2952 cpuflags="-mcpu=$cpu"
2953
2954 elif enabled arm; then
2955
2956 check_arm_arch() {
2957 check_cpp_condition stddef.h \
2958 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2959 $cpuflags
2960 }
2961
2962 probe_arm_arch() {
2963 if check_arm_arch 4; then echo armv4;
2964 elif check_arm_arch 4T; then echo armv4t;
2965 elif check_arm_arch 5; then echo armv5;
2966 elif check_arm_arch 5E; then echo armv5e;
2967 elif check_arm_arch 5T; then echo armv5t;
2968 elif check_arm_arch 5TE; then echo armv5te;
2969 elif check_arm_arch 5TEJ; then echo armv5te;
2970 elif check_arm_arch 6; then echo armv6;
2971 elif check_arm_arch 6J; then echo armv6j;
2972 elif check_arm_arch 6K; then echo armv6k;
2973 elif check_arm_arch 6Z; then echo armv6z;
2974 elif check_arm_arch 6ZK; then echo armv6zk;
2975 elif check_arm_arch 6T2; then echo armv6t2;
2976 elif check_arm_arch 7; then echo armv7;
2977 elif check_arm_arch 7A 7_A; then echo armv7-a;
2978 elif check_arm_arch 7R 7_R; then echo armv7-r;
2979 elif check_arm_arch 7M 7_M; then echo armv7-m;
2980 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2981 elif check_arm_arch 8A 8_A; then echo armv8-a;
2982 fi
2983 }
2984
2985 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2986
2987 case $cpu in
2988 armv*)
2989 cpuflags="-march=$cpu"
2990 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2991 ;;
2992 *)
2993 cpuflags="-mcpu=$cpu"
2994 case $cpu in
2995 cortex-a*) subarch=armv7a ;;
2996 cortex-r*) subarch=armv7r ;;
2997 cortex-m*) enable thumb; subarch=armv7m ;;
2998 arm11*) subarch=armv6 ;;
2999 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3000 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3001 *) subarch=$(probe_arm_arch) ;;
3002 esac
3003 ;;
3004 esac
3005
3006 case "$subarch" in
3007 armv5t*) enable fast_clz ;;
3008 armv[6-8]*) enable fast_clz fast_unaligned ;;
3009 esac
3010
3011 elif enabled avr32; then
3012
3013 case $cpu in
3014 ap7[02]0[0-2])
3015 subarch="avr32_ap"
3016 cpuflags="-mpart=$cpu"
3017 ;;
3018 ap)
3019 subarch="avr32_ap"
3020 cpuflags="-march=$cpu"
3021 ;;
3022 uc3[ab]*)
3023 subarch="avr32_uc"
3024 cpuflags="-mcpu=$cpu"
3025 ;;
3026 uc)
3027 subarch="avr32_uc"
3028 cpuflags="-march=$cpu"
3029 ;;
3030 esac
3031
3032 elif enabled bfin; then
3033
3034 cpuflags="-mcpu=$cpu"
3035
3036 elif enabled mips; then
3037
3038 cpuflags="-march=$cpu"
3039
3040 elif enabled ppc; then
3041
3042 case $(tolower $cpu) in
3043 601|ppc601|powerpc601)
3044 cpuflags="-mcpu=601"
3045 disable altivec
3046 ;;
3047 603*|ppc603*|powerpc603*)
3048 cpuflags="-mcpu=603"
3049 disable altivec
3050 ;;
3051 604*|ppc604*|powerpc604*)
3052 cpuflags="-mcpu=604"
3053 disable altivec
3054 ;;
3055 g3|75*|ppc75*|powerpc75*)
3056 cpuflags="-mcpu=750"
3057 disable altivec
3058 ;;
3059 g4|745*|ppc745*|powerpc745*)
3060 cpuflags="-mcpu=7450"
3061 ;;
3062 74*|ppc74*|powerpc74*)
3063 cpuflags="-mcpu=7400"
3064 ;;
3065 g5|970|ppc970|powerpc970)
3066 cpuflags="-mcpu=970"
3067 ;;
3068 power[3-7]*)
3069 cpuflags="-mcpu=$cpu"
3070 ;;
3071 cell)
3072 cpuflags="-mcpu=cell"
3073 enable ldbrx
3074 ;;
3075 e500mc)
3076 cpuflags="-mcpu=e500mc"
3077 disable altivec
3078 ;;
3079 e500v2)
3080 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3081 disable altivec
3082 ;;
3083 e500)
3084 cpuflags="-mcpu=8540 -mhard-float"
3085 disable altivec
3086 ;;
3087 esac
3088
3089 elif enabled sparc; then
3090
3091 case $cpu in
3092 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3093 cpuflags="-mcpu=$cpu"
3094 disable vis
3095 ;;
3096 ultrasparc*|niagara[234])
3097 cpuflags="-mcpu=$cpu"
3098 ;;
3099 esac
3100
3101 elif enabled x86; then
3102
3103 case $cpu in
3104 i[345]86|pentium)
3105 cpuflags="-march=$cpu"
3106 disable mmx
3107 ;;
3108 # targets that do NOT support nopl and conditional mov (cmov)
3109 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3110 cpuflags="-march=$cpu"
3111 disable i686
3112 ;;
3113 # targets that do support nopl and conditional mov (cmov)
3114 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3115 cpuflags="-march=$cpu"
3116 enable i686
3117 enable fast_cmov
3118 ;;
3119 # targets that do support conditional mov but on which it's slow
3120 pentium4|pentium4m|prescott|nocona)
3121 cpuflags="-march=$cpu"
3122 enable i686
3123 disable fast_cmov
3124 ;;
3125 esac
3126
3127 fi
3128
3129 if [ "$cpu" != generic ]; then
3130 add_cflags $cpuflags
3131 add_asflags $cpuflags
3132 fi
3133
3134 # compiler sanity check
3135 check_exec <<EOF
3136 int main(void){ return 0; }
3137 EOF
3138 if test "$?" != 0; then
3139 echo "$cc is unable to create an executable file."
3140 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3141 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3142 echo "Only do this if you know what cross compiling means."
3143 fi
3144 die "C compiler test failed."
3145 fi
3146
3147 add_cppflags -D_ISOC99_SOURCE
3148 check_cflags -std=c99
3149 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3150 #include <stdlib.h>
3151 EOF
3152 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3153 #include <stdlib.h>
3154 EOF
3155
3156 check_host_cflags -std=c99
3157 check_host_cflags -Wall
3158
3159 check_64bit(){
3160 arch32=$1
3161 arch64=$2
3162 expr=$3
3163 check_code cc "" "int test[2*($expr) - 1]" &&
3164 subarch=$arch64 || subarch=$arch32
3165 }
3166
3167 case "$arch" in
3168 aarch64|alpha|ia64)
3169 spic=$shared
3170 ;;
3171 mips)
3172 check_64bit mips mips64 '_MIPS_SIM > 1'
3173 spic=$shared
3174 ;;
3175 parisc)
3176 check_64bit parisc parisc64 'sizeof(void *) > 4'
3177 spic=$shared
3178 ;;
3179 ppc)
3180 check_64bit ppc ppc64 'sizeof(void *) > 4'
3181 spic=$shared
3182 ;;
3183 sparc)
3184 check_64bit sparc sparc64 'sizeof(void *) > 4'
3185 spic=$shared
3186 ;;
3187 x86)
3188 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3189 if test "$subarch" = "x86_64"; then
3190 spic=$shared
3191 fi
3192 ;;
3193 esac
3194
3195 enable $subarch
3196 enabled spic && enable_weak pic
3197
3198 # OS specific
3199 case $target_os in
3200 aix)
3201 SHFLAGS=-shared
3202 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3203 enabled shared && add_ldflags -Wl,-brtl
3204 ;;
3205 haiku)
3206 prefix_default="/boot/common"
3207 network_extralibs="-lnetwork"
3208 host_libs=
3209 ;;
3210 sunos)
3211 SHFLAGS='-shared -Wl,-h,$$(@F)'
3212 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3213 network_extralibs="-lsocket -lnsl"
3214 # When using suncc to build, the Solaris linker will mark
3215 # an executable with each instruction set encountered by
3216 # the Solaris assembler. As our libraries contain their own
3217 # guards for processor-specific code, instead suppress
3218 # generation of the HWCAPS ELF section on Solaris x86 only.
3219 enabled_all suncc x86 &&
3220 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3221 add_ldflags -Wl,-M,mapfile
3222 nm_default='nm -P -g'
3223 ;;
3224 netbsd)
3225 disable symver
3226 oss_indev_extralibs="-lossaudio"
3227 oss_outdev_extralibs="-lossaudio"
3228 ;;
3229 openbsd|bitrig)
3230 disable symver
3231 SHFLAGS='-shared'
3232 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3233 SLIB_INSTALL_LINKS=
3234 oss_indev_extralibs="-lossaudio"
3235 oss_outdev_extralibs="-lossaudio"
3236 ;;
3237 dragonfly)
3238 disable symver
3239 ;;
3240 freebsd)
3241 ;;
3242 bsd/os)
3243 add_extralibs -lpoll -lgnugetopt
3244 ;;
3245 darwin)
3246 gas="gas-preprocessor.pl $cc"
3247 enabled ppc && add_asflags -force_cpusubtype_ALL
3248 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3249 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3250 add_ldflags -Wl,-dynamic,-search_paths_first
3251 SLIBSUF=".dylib"
3252 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3253 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3254 objformat="macho"
3255 enabled x86_64 && objformat="macho64"
3256 enabled_any pic shared ||
3257 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3258 ;;
3259 mingw32*)
3260 if test $target_os = "mingw32ce"; then
3261 disable network
3262 else
3263 target_os=mingw32
3264 fi
3265 LIBTARGET=i386
3266 if enabled x86_64; then
3267 LIBTARGET="i386:x86-64"
3268 elif enabled arm; then
3269 LIBTARGET=arm-wince
3270 fi
3271 check_ldflags -Wl,--nxcompat
3272 check_ldflags -Wl,--dynamicbase
3273 shlibdir_default="$bindir_default"
3274 SLIBPREF=""
3275 SLIBSUF=".dll"
3276 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3277 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3278 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3279 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3280 SLIB_INSTALL_LINKS=
3281 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3282 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3283 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3284 objformat="win32"
3285 dlltool="${cross_prefix}dlltool"
3286 ranlib=:
3287 enable dos_paths
3288 ;;
3289 win32|win64)
3290 disable symver
3291 if enabled shared; then
3292 # Link to the import library instead of the normal static library
3293 # for shared libs.
3294 LD_LIB='%.lib'
3295 # Cannot build both shared and static libs with MSVC or icl.
3296 disable static
3297 fi
3298 shlibdir_default="$bindir_default"
3299 SLIBPREF=""
3300 SLIBSUF=".dll"
3301 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3302 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3303 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3304 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3305 SLIB_INSTALL_LINKS=
3306 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3307 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3308 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3309 objformat="win32"
3310 ranlib=:
3311 enable dos_paths
3312 ;;
3313 cygwin*)
3314 target_os=cygwin
3315 shlibdir_default="$bindir_default"
3316 SLIBPREF="cyg"
3317 SLIBSUF=".dll"
3318 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3319 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3320 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3321 SLIB_INSTALL_LINKS=
3322 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3323 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3324 objformat="win32"
3325 enable dos_paths
3326 ;;
3327 *-dos|freedos|opendos)
3328 network_extralibs="-lsocket"
3329 objformat="coff"
3330 enable dos_paths
3331 add_cppflags -U__STRICT_ANSI__
3332 ;;
3333 linux)
3334 enable dv1394
3335 ;;
3336 irix*)
3337 target_os=irix
3338 ranlib="echo ignoring ranlib"
3339 ;;
3340 os/2*)
3341 ln_s="cp -f"
3342 objformat="aout"
3343 add_cppflags -D_GNU_SOURCE
3344 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3345 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3346 LIBSUF="_s.a"
3347 SLIBPREF=""
3348 SLIBSUF=".dll"
3349 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3350 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3351 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3352 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3353 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3354 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3355 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3356 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3357 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3358 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3359 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3360 enable dos_paths
3361 ;;
3362 gnu/kfreebsd)
3363 add_cppflags -D_BSD_SOURCE
3364 ;;
3365 gnu)
3366 ;;
3367 qnx)
3368 add_cppflags -D_QNX_SOURCE
3369 network_extralibs="-lsocket"
3370 ;;
3371 symbian)
3372 SLIBSUF=".dll"
3373 enable dos_paths
3374 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3375 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3376 add_ldflags -Wl,--target1-abs,--no-undefined \
3377 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3378 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3379 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3380 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3381 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3382 ;;
3383 osf1)
3384 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3385 ;;
3386 minix)
3387 ;;
3388 plan9)
3389 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3390 -D_REENTRANT_SOURCE \
3391 -D_RESEARCH_SOURCE \
3392 -DFD_SETSIZE=96 \
3393 -DHAVE_SOCK_OPTS
3394 add_compat strtod.o strtod=avpriv_strtod
3395 network_extralibs='-lbsd'
3396 exeobjs=compat/plan9/main.o
3397 disable avserver
3398 cp_f='cp'
3399 ;;
3400 none)
3401 ;;
3402 *)
3403 die "Unknown OS '$target_os'."
3404 ;;
3405 esac
3406
3407 # determine libc flavour
3408
3409 probe_libc(){
3410 pfx=$1
3411 pfx_no_=${pfx%_}
3412 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3413 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3414 eval ${pfx}libc_type=uclibc
3415 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3416 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3417 eval ${pfx}libc_type=glibc
3418 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3419 # MinGW headers can be installed on Cygwin, so check for newlib first.
3420 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3421 eval ${pfx}libc_type=newlib
3422 add_${pfx}cppflags -U__STRICT_ANSI__
3423 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3424 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3425 eval ${pfx}libc_type=mingw64
3426 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3427 eval test \$${pfx_no_}cc_type = "gcc" &&
3428 add_${pfx}cppflags -D__printf__=__gnu_printf__
3429 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3430 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3431 eval ${pfx}libc_type=mingw32
3432 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3433 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3434 die "ERROR: MinGW32 runtime version must be >= 3.15."
3435 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3436 eval test \$${pfx_no_}cc_type = "gcc" &&
3437 add_${pfx}cppflags -D__printf__=__gnu_printf__
3438 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3439 eval ${pfx}libc_type=msvcrt
3440 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3441 # 0x601 by default unless something else is set by the user.
3442 # This can easily lead to us detecting functions only present
3443 # in such new versions and producing binaries requiring windows 7.0.
3444 # Therefore explicitly set the default to XP unless the user has
3445 # set something else on the command line.
3446 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3447 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3448 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3449 eval ${pfx}libc_type=klibc
3450 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3451 eval ${pfx}libc_type=bionic
3452 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3453 eval ${pfx}libc_type=solaris
3454 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3455 fi
3456 }
3457
3458 probe_libc
3459 test -n "$libc_type" && enable libc_$libc_type
3460 probe_libc host_
3461 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3462
3463 case $libc_type in
3464 bionic)
3465 add_compat strtod.o strtod=avpriv_strtod
3466 ;;
3467 msvcrt)
3468 add_compat strtod.o strtod=avpriv_strtod
3469 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3470 _snprintf=avpriv_snprintf \
3471 vsnprintf=avpriv_vsnprintf
3472 ;;
3473 esac
3474
3475 # hacks for compiler/libc/os combinations
3476
3477 if enabled_all tms470 libc_glibc; then
3478 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3479 add_cppflags -D__USER_LABEL_PREFIX__=
3480 add_cppflags -D__builtin_memset=memset
3481 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3482 add_cflags -pds=48 # incompatible redefinition of macro
3483 fi
3484
3485 if enabled_all ccc libc_glibc; then
3486 add_ldflags -Wl,-z,now # calls to libots crash without this
3487 fi
3488
3489 esc(){
3490 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3491 }
3492
3493 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3494
3495 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3496
3497 set_default $PATHS_LIST
3498 set_default nm
3499
3500 # we need to build at least one lib type
3501 if ! enabled_any static shared; then
3502 cat <<EOF
3503 At least one library type must be built.
3504 Specify --enable-static to build the static libraries or --enable-shared to
3505 build the shared libraries as well. To only build the shared libraries specify
3506 --disable-static in addition to --enable-shared.
3507 EOF
3508 exit 1;
3509 fi
3510
3511 die_license_disabled() {
3512 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3513 }
3514
3515 die_license_disabled gpl libcdio
3516 die_license_disabled gpl libx264
3517 die_license_disabled gpl libxavs
3518 die_license_disabled gpl libxvid
3519 die_license_disabled gpl x11grab
3520
3521 die_license_disabled nonfree libfaac
3522 die_license_disabled nonfree libfdk_aac
3523 die_license_disabled nonfree openssl
3524
3525 die_license_disabled version3 libopencore_amrnb
3526 die_license_disabled version3 libopencore_amrwb
3527 die_license_disabled version3 libvo_aacenc
3528 die_license_disabled version3 libvo_amrwbenc
3529
3530 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3531
3532 disabled optimizations || check_cflags -fomit-frame-pointer
3533
3534 enable_weak_pic() {
3535 disabled pic && return
3536 enable pic
3537 add_cppflags -DPIC
3538 case "$target_os" in
3539 mingw*|cygwin*)
3540 ;;
3541 *)
3542 add_cflags -fPIC
3543 ;;
3544 esac
3545 add_asflags -fPIC
3546 }
3547
3548 enabled pic && enable_weak_pic
3549
3550 check_cc <<EOF || die "Symbol mangling check failed."
3551 int ff_extern;
3552 EOF
3553 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3554 extern_prefix=${sym%%ff_extern*}
3555
3556 check_cc <<EOF && enable_weak inline_asm
3557 void foo(void) { __asm__ volatile ("" ::); }
3558 EOF
3559
3560 _restrict=
3561 for restrict_keyword in restrict __restrict__ __restrict; do
3562 check_cc <<EOF && _restrict=$restrict_keyword && break
3563 void foo(char * $restrict_keyword p);
3564 EOF
3565 done
3566
3567 check_cc <<EOF && enable pragma_deprecated
3568 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3569 EOF
3570
3571 check_cc <<EOF && enable attribute_packed
3572 struct { int x; } __attribute__((packed)) x;
3573 EOF
3574
3575 check_cc <<EOF && enable attribute_may_alias
3576 union { int x; } __attribute__((may_alias)) x;
3577 EOF
3578
3579 check_cc <<EOF || die "endian test failed"
3580 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3581 EOF
3582 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3583
3584 check_inline_asm inline_asm_labels '"1:\n"'
3585
3586 if enabled alpha; then
3587
3588 check_cflags -mieee
3589
3590 elif enabled arm; then
3591
3592 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3593 enabled thumb && check_cflags -mthumb || check_cflags -marm
3594 nogas=die
3595
3596 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3597 enable vfp_args
3598 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3599 case "${cross_prefix:-$cc}" in
3600 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3601 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3602 __asm__ (".eabi_attribute 28, 1");
3603 int main(void) { return 0; }
3604 EOF
3605 esac
3606 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3607 fi
3608
3609 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3610 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3611 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3612 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3613 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3614 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3615
3616 [ $target_os = linux ] ||
3617 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3618 $ARCH_EXT_LIST_ARM
3619
3620 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3621 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3622
3623 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3624
3625 elif enabled mips; then
3626
3627 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3628
3629 elif enabled parisc; then
3630
3631 if enabled gcc; then
3632 case $($cc -dumpversion) in
3633 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3634 esac
3635 fi
3636
3637 elif enabled ppc; then
3638
3639 enable local_aligned_8 local_aligned_16
3640
3641 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3642 check_inline_asm ibm_asm '"add 0, 0, 0"'
3643 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3644 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3645
3646 # AltiVec flags: The FSF version of GCC differs from the Apple version
3647 if enabled altivec; then
3648 nogas=warn
3649 check_cflags -maltivec -mabi=altivec &&
3650 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3651 check_cflags -faltivec
3652
3653 # check if our compiler supports Motorola AltiVec C API
3654 check_cc <<EOF || disable altivec
3655 $inc_altivec_h
3656 int main(void) {
3657 vector signed int v1 = (vector signed int) { 0 };
3658 vector signed int v2 = (vector signed int) { 1 };
3659 v1 = vec_add(v1, v2);
3660 return 0;
3661 }
3662 EOF
3663
3664 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3665 fi
3666
3667 elif enabled sparc; then
3668
3669 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3670
3671 elif enabled x86; then
3672
3673 check_builtin rdtsc intrin.h "__rdtsc()"
3674 check_builtin mm_empty mmintrin.h "_mm_empty()"
3675
3676 enable local_aligned_8 local_aligned_16
3677
3678 # check whether EBP is available on x86
3679 # As 'i' is stored on the stack, this program will crash
3680 # if the base pointer is used to access it because the
3681 # base pointer is cleared in the inline assembly code.
3682 check_exec_crash <<EOF && enable ebp_available
3683 volatile int i=0;
3684 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3685 return i;
3686 EOF
3687
3688 # check whether EBX is available on x86
3689 check_inline_asm ebx_available '""::"b"(0)' &&
3690 check_inline_asm ebx_available '"":::"%ebx"'
3691
3692 # check whether xmm clobbers are supported
3693 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3694
3695 # check whether binutils is new enough to compile SSSE3/MMXEXT
3696 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3697 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3698
3699 if ! disabled_any asm mmx yasm; then