769eace84bdca29b57e037fef979692fc549dc1b
[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_extralibs(){
663 prepend extralibs $($ldflags_filter "$@")
664 }
665
666 add_host_cppflags(){
667 append host_cppflags "$@"
668 }
669
670 add_host_cflags(){
671 append host_cflags $($host_cflags_filter "$@")
672 }
673
674 add_host_ldflags(){
675 append host_ldflags $($host_ldflags_filter "$@")
676 }
677
678 add_compat(){
679 append compat_objs $1
680 shift
681 map 'add_cppflags -D$v' "$@"
682 }
683
684 check_cmd(){
685 log "$@"
686 "$@" >> $logfile 2>&1
687 }
688
689 cc_o(){
690 eval printf '%s\\n' $CC_O
691 }
692
693 cc_e(){
694 eval printf '%s\\n' $CC_E
695 }
696
697 check_cc(){
698 log check_cc "$@"
699 cat > $TMPC
700 log_file $TMPC
701 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
702 }
703
704 check_cpp(){
705 log check_cpp "$@"
706 cat > $TMPC
707 log_file $TMPC
708 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
709 }
710
711 as_o(){
712 eval printf '%s\\n' $AS_O
713 }
714
715 check_as(){
716 log check_as "$@"
717 cat > $TMPS
718 log_file $TMPS
719 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
720 }
721
722 check_inline_asm(){
723 log check_inline_asm "$@"
724 name="$1"
725 code="$2"
726 shift 2
727 disable $name
728 check_cc "$@" <<EOF && enable $name
729 void foo(void){ __asm__ volatile($code); }
730 EOF
731 }
732
733 check_insn(){
734 log check_insn "$@"
735 check_inline_asm ${1}_inline "\"$2\""
736 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
737 }
738
739 check_yasm(){
740 log check_yasm "$@"
741 echo "$1" > $TMPS
742 log_file $TMPS
743 shift 1
744 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
745 }
746
747 ld_o(){
748 eval printf '%s\\n' $LD_O
749 }
750
751 check_ld(){
752 log check_ld "$@"
753 flags=$(filter_out '-l*' "$@")
754 libs=$(filter '-l*' "$@")
755 check_cc $($cflags_filter $flags) || return
756 flags=$($ldflags_filter $flags)
757 libs=$($ldflags_filter $libs)
758 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
759 }
760
761 check_code(){
762 log check_code "$@"
763 check=$1
764 headers=$2
765 code=$3
766 shift 3
767 {
768 for hdr in $headers; do
769 echo "#include <$hdr>"
770 done
771 echo "int main(void) { $code; return 0; }"
772 } | check_$check "$@"
773 }
774
775 check_cppflags(){
776 log check_cppflags "$@"
777 check_cc "$@" <<EOF && append CPPFLAGS "$@"
778 int x;
779 EOF
780 }
781
782 test_cflags(){
783 log test_cflags "$@"
784 set -- $($cflags_filter "$@")
785 check_cc "$@" <<EOF
786 int x;
787 EOF
788 }
789
790 check_cflags(){
791 log check_cflags "$@"
792 test_cflags "$@" && add_cflags "$@"
793 }
794
795 test_ldflags(){
796 log test_ldflags "$@"
797 check_ld "$@" <<EOF
798 int main(void){ return 0; }
799 EOF
800 }
801
802 check_ldflags(){
803 log check_ldflags "$@"
804 test_ldflags "$@" && add_ldflags "$@"
805 }
806
807 check_header(){
808 log check_header "$@"
809 header=$1
810 shift
811 disable_safe $header
812 check_cpp "$@" <<EOF && enable_safe $header
813 #include <$header>
814 int x;
815 EOF
816 }
817
818 check_func(){
819 log check_func "$@"
820 func=$1
821 shift
822 disable $func
823 check_ld "$@" <<EOF && enable $func
824 extern int $func();
825 int main(void){ $func(); }
826 EOF
827 }
828
829 check_mathfunc(){
830 log check_mathfunc "$@"
831 func=$1
832 narg=$2
833 shift 2
834 test $narg = 2 && args="f, g" || args="f"
835 disable $func
836 check_ld "$@" <<EOF && enable $func
837 #include <math.h>
838 float foo(float f, float g) { return $func($args); }
839 int main(void){ return 0; }
840 EOF
841 }
842
843 check_func_headers(){
844 log check_func_headers "$@"
845 headers=$1
846 funcs=$2
847 shift 2
848 {
849 for hdr in $headers; do
850 echo "#include <$hdr>"
851 done
852 for func in $funcs; do
853 echo "long check_$func(void) { return (long) $func; }"
854 done
855 echo "int main(void) { return 0; }"
856 } | check_ld "$@" && enable $funcs && enable_safe $headers
857 }
858
859 check_cpp_condition(){
860 log check_cpp_condition "$@"
861 header=$1
862 condition=$2
863 shift 2
864 check_cpp "$@" <<EOF
865 #include <$header>
866 #if !($condition)
867 #error "unsatisfied condition: $condition"
868 #endif
869 EOF
870 }
871
872 check_lib(){
873 log check_lib "$@"
874 header="$1"
875 func="$2"
876 shift 2
877 check_header $header && check_func $func "$@" && add_extralibs "$@"
878 }
879
880 check_lib2(){
881 log check_lib2 "$@"
882 headers="$1"
883 funcs="$2"
884 shift 2
885 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
886 }
887
888 check_pkg_config(){
889 log check_pkg_config "$@"
890 pkg="$1"
891 headers="$2"
892 funcs="$3"
893 shift 3
894 check_cmd $pkg_config --exists --print-errors $pkg || return
895 pkg_cflags=$($pkg_config --cflags $pkg)
896 pkg_libs=$($pkg_config --libs $pkg)
897 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
898 set_safe ${pkg}_cflags $pkg_cflags &&
899 set_safe ${pkg}_libs $pkg_libs
900 }
901
902 check_exec(){
903 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
904 }
905
906 check_exec_crash(){
907 code=$(cat)
908
909 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
910 # are safe but may not be available everywhere. Thus we use
911 # raise(SIGTERM) instead. The check is run in a subshell so we
912 # can redirect the "Terminated" message from the shell. SIGBUS
913 # is not defined by standard C so it is used conditionally.
914
915 (check_exec "$@") >> $logfile 2>&1 <<EOF
916 #include <signal.h>
917 static void sighandler(int sig){
918 raise(SIGTERM);
919 }
920 int foo(void){
921 $code
922 }
923 int (*func_ptr)(void) = foo;
924 int main(void){
925 signal(SIGILL, sighandler);
926 signal(SIGFPE, sighandler);
927 signal(SIGSEGV, sighandler);
928 #ifdef SIGBUS
929 signal(SIGBUS, sighandler);
930 #endif
931 return func_ptr();
932 }
933 EOF
934 }
935
936 check_type(){
937 log check_type "$@"
938 headers=$1
939 type=$2
940 shift 2
941 disable_safe "$type"
942 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
943 }
944
945 check_struct(){
946 log check_struct "$@"
947 headers=$1
948 struct=$2
949 member=$3
950 shift 3
951 disable_safe "${struct}_${member}"
952 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
953 enable_safe "${struct}_${member}"
954 }
955
956 check_builtin(){
957 log check_builtin "$@"
958 name=$1
959 headers=$2
960 builtin=$3
961 shift 3
962 disable "$name"
963 check_code ld "$headers" "$builtin" "$@" && enable "$name"
964 }
965
966 require(){
967 name="$1"
968 header="$2"
969 func="$3"
970 shift 3
971 check_lib $header $func "$@" || die "ERROR: $name not found"
972 }
973
974 require2(){
975 name="$1"
976 headers="$2"
977 func="$3"
978 shift 3
979 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
980 }
981
982 require_pkg_config(){
983 pkg="$1"
984 check_pkg_config "$@" || die "ERROR: $pkg not found"
985 add_cflags $(get_safe ${pkg}_cflags)
986 add_extralibs $(get_safe ${pkg}_libs)
987 }
988
989 hostcc_o(){
990 eval printf '%s\\n' $HOSTCC_O
991 }
992
993 check_host_cc(){
994 log check_host_cc "$@"
995 cat > $TMPC
996 log_file $TMPC
997 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
998 }
999
1000 check_host_cppflags(){
1001 log check_host_cppflags "$@"
1002 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1003 int x;
1004 EOF
1005 }
1006
1007 check_host_cflags(){
1008 log check_host_cflags "$@"
1009 set -- $($host_cflags_filter "$@")
1010 check_host_cc "$@" <<EOF && append host_cflags "$@"
1011 int x;
1012 EOF
1013 }
1014
1015 apply(){
1016 file=$1
1017 shift
1018 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1019 }
1020
1021 cp_if_changed(){
1022 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1023 mkdir -p "$(dirname $2)"
1024 $cp_f "$1" "$2"
1025 }
1026
1027 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1028 # system-dependent things.
1029
1030 COMPONENT_LIST="
1031 bsfs
1032 decoders
1033 demuxers
1034 encoders
1035 filters
1036 hwaccels
1037 indevs
1038 muxers
1039 outdevs
1040 parsers
1041 protocols
1042 "
1043
1044 EXTERNAL_LIBRARY_LIST="
1045 avisynth
1046 bzlib
1047 frei0r
1048 gnutls
1049 libcdio
1050 libdc1394
1051 libfaac
1052 libfdk_aac
1053 libfreetype
1054 libgsm
1055 libilbc
1056 libmp3lame
1057 libopencore_amrnb
1058 libopencore_amrwb
1059 libopencv
1060 libopenjpeg
1061 libopus
1062 libpulse
1063 librtmp
1064 libschroedinger
1065 libspeex
1066 libtheora
1067 libvo_aacenc
1068 libvo_amrwbenc
1069 libvorbis
1070 libvpx
1071 libwavpack
1072 libx264
1073 libxavs
1074 libxvid
1075 openssl
1076 x11grab
1077 zlib
1078 "
1079
1080 HWACCEL_LIST="
1081 dxva2
1082 vaapi
1083 vda
1084 vdpau
1085 "
1086 LIBRARY_LIST="
1087 avcodec
1088 avdevice
1089 avfilter
1090 avformat
1091 avresample
1092 avutil
1093 swscale
1094 "
1095
1096 PROGRAM_LIST="
1097 avconv
1098 avplay
1099 avprobe
1100 avserver
1101 "
1102
1103 CONFIG_LIST="
1104 $COMPONENT_LIST
1105 $EXTERNAL_LIBRARY_LIST
1106 $HWACCEL_LIST
1107 $LIBRARY_LIST
1108 $PROGRAM_LIST
1109 dct
1110 doc
1111 error_resilience
1112 fft
1113 gpl
1114 gray
1115 hardcoded_tables
1116 lsp
1117 lzo
1118 mdct
1119 memalign_hack
1120 network
1121 nonfree
1122 pic
1123 rdft
1124 runtime_cpudetect
1125 safe_bitstream_reader
1126 shared
1127 small
1128 sram
1129 static
1130 swscale_alpha
1131 thumb
1132 version3
1133 xmm_clobber_test
1134 "
1135
1136 THREADS_LIST='
1137 pthreads
1138 w32threads
1139 '
1140
1141 ATOMICS_LIST='
1142 atomics_gcc
1143 atomics_suncc
1144 atomics_win32
1145 '
1146
1147 ARCH_LIST='
1148 aarch64
1149 alpha
1150 arm
1151 avr32
1152 avr32_ap
1153 avr32_uc
1154 bfin
1155 ia64
1156 m68k
1157 mips
1158 mips64
1159 parisc
1160 ppc
1161 ppc64
1162 s390
1163 sh4
1164 sparc
1165 sparc64
1166 tilegx
1167 tilepro
1168 tomi
1169 x86
1170 x86_32
1171 x86_64
1172 '
1173
1174 ARCH_EXT_LIST_ARM='
1175 armv5te
1176 armv6
1177 armv6t2
1178 neon
1179 vfp
1180 vfpv3
1181 '
1182
1183 ARCH_EXT_LIST_X86='
1184 amd3dnow
1185 amd3dnowext
1186 avx
1187 avx2
1188 fma4
1189 i686
1190 mmx
1191 mmxext
1192 sse
1193 sse2
1194 sse3
1195 sse4
1196 sse42
1197 ssse3
1198 '
1199
1200 ARCH_EXT_LIST="
1201 $ARCH_EXT_LIST_ARM
1202 $ARCH_EXT_LIST_X86
1203 altivec
1204 ppc4xx
1205 vis
1206 "
1207
1208 HAVE_LIST_CMDLINE='
1209 inline_asm
1210 symver
1211 yasm
1212 '
1213
1214 HAVE_LIST_PUB='
1215 bigendian
1216 fast_unaligned
1217 '
1218
1219 MATH_FUNCS="
1220 atanf
1221 atan2f
1222 cbrtf
1223 cosf
1224 exp2
1225 exp2f
1226 expf
1227 isinf
1228 isnan
1229 ldexpf
1230 llrint
1231 llrintf
1232 log2
1233 log2f
1234 log10f
1235 lrint
1236 lrintf
1237 powf
1238 rint
1239 round
1240 roundf
1241 sinf
1242 trunc
1243 truncf
1244 "
1245
1246 HAVE_LIST="
1247 $ARCH_EXT_LIST
1248 $(add_suffix _external $ARCH_EXT_LIST)
1249 $(add_suffix _inline $ARCH_EXT_LIST)
1250 $HAVE_LIST_CMDLINE
1251 $HAVE_LIST_PUB
1252 $THREADS_LIST
1253 $ATOMICS_LIST
1254 $MATH_FUNCS
1255 aligned_malloc
1256 aligned_stack
1257 alsa_asoundlib_h
1258 altivec_h
1259 arpa_inet_h
1260 asm_mod_q
1261 asm_mod_y
1262 atomic_cas_ptr
1263 atomics_native
1264 attribute_may_alias
1265 attribute_packed
1266 cdio_paranoia_h
1267 cdio_paranoia_paranoia_h
1268 closesocket
1269 CommandLineToArgvW
1270 cpunop
1271 CryptGenRandom
1272 dcbzl
1273 dev_bktr_ioctl_bt848_h
1274 dev_bktr_ioctl_meteor_h
1275 dev_ic_bt8xx_h
1276 dev_video_bktr_ioctl_bt848_h
1277 dev_video_meteor_ioctl_meteor_h
1278 direct_h
1279 dlfcn_h
1280 dlopen
1281 dos_paths
1282 dxva_h
1283 ebp_available
1284 ebx_available
1285 fast_64bit
1286 fast_clz
1287 fast_cmov
1288 fcntl
1289 fork
1290 getaddrinfo
1291 gethrtime
1292 getopt
1293 GetProcessAffinityMask
1294 GetProcessMemoryInfo
1295 GetProcessTimes
1296 GetSystemTimeAsFileTime
1297 getrusage
1298 getservbyport
1299 gettimeofday
1300 gnu_as
1301 gsm_h
1302 ibm_asm
1303 inet_aton
1304 io_h
1305 inline_asm_labels
1306 isatty
1307 jack_port_get_latency_range
1308 ldbrx
1309 libdc1394_1
1310 libdc1394_2
1311 local_aligned_16
1312 local_aligned_8
1313 localtime_r
1314 loongson
1315 machine_ioctl_bt848_h
1316 machine_ioctl_meteor_h
1317 machine_rw_barrier
1318 malloc_h
1319 MapViewOfFile
1320 memalign
1321 MemoryBarrier
1322 mkstemp
1323 mm_empty
1324 mmap
1325 mprotect
1326 msvcrt
1327 nanosleep
1328 poll_h
1329 posix_memalign
1330 pragma_deprecated
1331 rdtsc
1332 sched_getaffinity
1333 sdl
1334 SetConsoleTextAttribute
1335 setmode
1336 setrlimit
1337 Sleep
1338 sndio_h
1339 socklen_t
1340 soundcard_h
1341 strerror_r
1342 strptime
1343 strtok_r
1344 struct_addrinfo
1345 struct_group_source_req
1346 struct_ip_mreq_source
1347 struct_ipv6_mreq
1348 struct_pollfd
1349 struct_rusage_ru_maxrss
1350 struct_sockaddr_in6
1351 struct_sockaddr_sa_len
1352 struct_sockaddr_storage
1353 struct_v4l2_frmivalenum_discrete
1354 symver_asm_label
1355 symver_gnu_asm
1356 sync_val_compare_and_swap
1357 sysconf
1358 sysctl
1359 sys_mman_h
1360 sys_param_h
1361 sys_resource_h
1362 sys_select_h
1363 sys_soundcard_h
1364 sys_time_h
1365 sys_un_h
1366 sys_videoio_h
1367 threads
1368 unistd_h
1369 usleep
1370 vfp_args
1371 VirtualAlloc
1372 windows_h
1373 winsock2_h
1374 xform_asm
1375 xmm_clobbers
1376 "
1377
1378 # options emitted with CONFIG_ prefix but not available on the command line
1379 CONFIG_EXTRA="
1380 aandcttables
1381 ac3dsp
1382 audio_frame_queue
1383 dsputil
1384 gcrypt
1385 golomb
1386 gplv3
1387 h263dsp
1388 h264chroma
1389 h264dsp
1390 h264pred
1391 h264qpel
1392 hpeldsp
1393 huffman
1394 lgplv3
1395 lpc
1396 mpegaudio
1397 mpegaudiodsp
1398 mpegvideo
1399 mpegvideoenc
1400 nettle
1401 rangecoder
1402 riffdec
1403 riffenc
1404 rtpdec
1405 rtpenc_chain
1406 sinewin
1407 videodsp
1408 vp3dsp
1409 "
1410
1411 CMDLINE_SELECT="
1412 $ARCH_EXT_LIST
1413 $CONFIG_LIST
1414 $HAVE_LIST_CMDLINE
1415 $THREADS_LIST
1416 asm
1417 cross_compile
1418 debug
1419 extra_warnings
1420 logging
1421 lto
1422 optimizations
1423 "
1424
1425 PATHS_LIST='
1426 bindir
1427 datadir
1428 docdir
1429 incdir
1430 libdir
1431 mandir
1432 prefix
1433 shlibdir
1434 '
1435
1436 CMDLINE_SET="
1437 $PATHS_LIST
1438 ar
1439 arch
1440 as
1441 build_suffix
1442 cc
1443 cpu
1444 cross_prefix
1445 dep_cc
1446 extra_version
1447 host_cc
1448 host_cflags
1449 host_ld
1450 host_ldflags
1451 host_libs
1452 host_os
1453 ld
1454 logfile
1455 malloc_prefix
1456 nm
1457 optflags
1458 pkg_config
1459 random_seed
1460 samples
1461 sysinclude
1462 sysroot
1463 target_exec
1464 target_os
1465 target_path
1466 target_samples
1467 toolchain
1468 "
1469
1470 CMDLINE_APPEND="
1471 extra_cflags
1472 host_cppflags
1473 "
1474
1475 # code dependency declarations
1476
1477 # architecture extensions
1478
1479 armv5te_deps="arm"
1480 armv6_deps="arm"
1481 armv6t2_deps="arm"
1482 neon_deps="arm"
1483 vfp_deps="arm"
1484 vfpv3_deps="vfp"
1485
1486 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1487
1488 altivec_deps="ppc"
1489 ppc4xx_deps="ppc"
1490
1491 vis_deps="sparc"
1492
1493 cpunop_deps="i686"
1494 x86_64_select="i686"
1495 x86_64_suggest="fast_cmov"
1496
1497 amd3dnow_deps="mmx"
1498 amd3dnowext_deps="amd3dnow"
1499 mmx_deps="x86"
1500 mmxext_deps="mmx"
1501 sse_deps="mmxext"
1502 sse2_deps="sse"
1503 sse3_deps="sse2"
1504 ssse3_deps="sse3"
1505 sse4_deps="ssse3"
1506 sse42_deps="sse4"
1507 avx_deps="sse42"
1508 fma4_deps="avx"
1509 avx2_deps="avx"
1510
1511 mmx_external_deps="yasm"
1512 mmx_inline_deps="inline_asm"
1513 mmx_suggest="mmx_external mmx_inline"
1514
1515 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1516 eval dep=\$${ext}_deps
1517 eval ${ext}_external_deps='"${dep}_external"'
1518 eval ${ext}_inline_deps='"${dep}_inline"'
1519 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1520 done
1521
1522 aligned_stack_if_any="ppc x86"
1523 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1524 fast_clz_if_any="alpha avr32 mips ppc x86"
1525 fast_unaligned_if_any="ppc x86"
1526
1527 inline_asm_deps="!tms470"
1528 need_memalign="altivec neon sse"
1529
1530 symver_if_any="symver_asm_label symver_gnu_asm"
1531
1532 log2_deps="!msvcrt"
1533
1534 # subsystems
1535 dct_select="rdft"
1536 error_resilience_select="dsputil"
1537 lpc_select="dsputil"
1538 mdct_select="fft"
1539 rdft_select="fft"
1540 mpegaudio_select="mpegaudiodsp"
1541 mpegaudiodsp_select="dct"
1542 mpegvideo_select="dsputil hpeldsp videodsp"
1543 mpegvideoenc_select="mpegvideo"
1544
1545 # decoders / encoders
1546 aac_decoder_select="mdct sinewin"
1547 aac_encoder_select="audio_frame_queue mdct sinewin"
1548 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1549 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1550 ac3_encoder_select="mdct ac3dsp dsputil"
1551 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1552 aic_decoder_select="dsputil golomb"
1553 alac_encoder_select="lpc"
1554 als_decoder_select="dsputil"
1555 amrnb_decoder_select="lsp"
1556 amrwb_decoder_select="lsp"
1557 amv_decoder_select="dsputil hpeldsp"
1558 ape_decoder_select="dsputil"
1559 asv1_decoder_select="dsputil"
1560 asv1_encoder_select="dsputil"
1561 asv2_decoder_select="dsputil"
1562 asv2_encoder_select="dsputil"
1563 atrac1_decoder_select="mdct sinewin"
1564 atrac3_decoder_select="mdct"
1565 bink_decoder_select="dsputil hpeldsp"
1566 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1567 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1568 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1569 cllc_decoder_select="dsputil"
1570 comfortnoise_encoder_select="lpc"
1571 cook_decoder_select="dsputil mdct sinewin"
1572 cscd_decoder_select="lzo"
1573 cscd_decoder_suggest="zlib"
1574 dca_decoder_select="mdct"
1575 dnxhd_decoder_select="dsputil"
1576 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1577 dvvideo_decoder_select="dsputil"
1578 dvvideo_encoder_select="dsputil"
1579 dxa_decoder_deps="zlib"
1580 eac3_decoder_select="ac3_decoder"
1581 eac3_encoder_select="ac3_encoder"
1582 eamad_decoder_select="aandcttables dsputil mpegvideo"
1583 eatgq_decoder_select="aandcttables dsputil"
1584 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1585 ffv1_decoder_select="dsputil golomb rangecoder"
1586 ffv1_encoder_select="dsputil rangecoder"
1587 ffvhuff_decoder_select="dsputil"
1588 ffvhuff_encoder_select="dsputil huffman"
1589 flac_decoder_select="golomb"
1590 flac_encoder_select="dsputil golomb lpc"
1591 flashsv_decoder_deps="zlib"
1592 flashsv_encoder_deps="zlib"
1593 flashsv2_decoder_deps="zlib"
1594 flv_decoder_select="h263_decoder"
1595 flv_encoder_select="h263_encoder"
1596 fourxm_decoder_select="dsputil"
1597 fraps_decoder_select="dsputil huffman"
1598 g2m_decoder_deps="zlib"
1599 g2m_decoder_select="dsputil"
1600 h261_decoder_select="error_resilience mpegvideo"
1601 h261_encoder_select="aandcttables mpegvideoenc"
1602 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1603 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1604 h263i_decoder_select="h263_decoder"
1605 h263p_encoder_select="h263_encoder"
1606 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1607 h264_decoder_suggest="error_resilience"
1608 hevc_decoder_select="dsputil golomb videodsp"
1609 huffyuv_decoder_select="dsputil"
1610 huffyuv_encoder_select="dsputil huffman"
1611 iac_decoder_select="dsputil fft mdct sinewin"
1612 imc_decoder_select="dsputil fft mdct sinewin"
1613 indeo3_decoder_select="hpeldsp"
1614 interplay_video_decoder_select="hpeldsp"
1615 jpegls_decoder_select="dsputil golomb hpeldsp"
1616 jpegls_encoder_select="golomb"
1617 jv_decoder_select="dsputil"
1618 lagarith_decoder_select="dsputil"
1619 ljpeg_encoder_select="aandcttables mpegvideoenc"
1620 loco_decoder_select="golomb"
1621 mdec_decoder_select="dsputil error_resilience mpegvideo"
1622 metasound_decoder_select="lsp mdct sinewin"
1623 mimic_decoder_select="dsputil hpeldsp"
1624 mjpeg_decoder_select="dsputil hpeldsp"
1625 mjpegb_decoder_select="dsputil hpeldsp"
1626 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1627 mlp_decoder_select="dsputil mlp_parser"
1628 motionpixels_decoder_select="dsputil"
1629 mp1_decoder_select="mpegaudio"
1630 mp1float_decoder_select="mpegaudio"
1631 mp2_decoder_select="mpegaudio"
1632 mp2float_decoder_select="mpegaudio"
1633 mp3_decoder_select="mpegaudio"
1634 mp3adu_decoder_select="mpegaudio"
1635 mp3adufloat_decoder_select="mpegaudio"
1636 mp3float_decoder_select="mpegaudio"
1637 mp3on4_decoder_select="mpegaudio"
1638 mp3on4float_decoder_select="mpegaudio"
1639 mpc7_decoder_select="dsputil mpegaudiodsp"
1640 mpc8_decoder_select="dsputil mpegaudiodsp"
1641 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1642 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1643 mpeg1video_decoder_select="error_resilience mpegvideo"
1644 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1645 mpeg2video_decoder_select="error_resilience mpegvideo"
1646 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1647 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1648 mpeg4_encoder_select="h263_encoder"
1649 msmpeg4v1_decoder_select="h263_decoder"
1650 msmpeg4v2_decoder_select="h263_decoder"
1651 msmpeg4v2_encoder_select="h263_encoder"
1652 msmpeg4v3_decoder_select="h263_decoder"
1653 msmpeg4v3_encoder_select="h263_encoder"
1654 mss2_decoder_select="error_resilience vc1_decoder"
1655 mxpeg_decoder_select="dsputil hpeldsp"
1656 nellymoser_decoder_select="mdct sinewin"
1657 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1658 nuv_decoder_select="dsputil lzo"
1659 png_decoder_deps="zlib"
1660 png_decoder_select="dsputil"
1661 png_encoder_deps="zlib"
1662 png_encoder_select="dsputil"
1663 prores_decoder_select="dsputil"
1664 prores_encoder_select="dsputil"
1665 qcelp_decoder_select="lsp"
1666 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1667 ra_144_encoder_select="audio_frame_queue lpc"
1668 ralf_decoder_select="golomb"
1669 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1670 rv10_encoder_select="h263_encoder"
1671 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1672 rv20_encoder_select="h263_encoder"
1673 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1674 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1675 shorten_decoder_select="golomb"
1676 sipr_decoder_select="lsp"
1677 sp5x_decoder_select="dsputil hpeldsp"
1678 svq1_decoder_select="hpeldsp"
1679 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1680 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1681 svq3_decoder_suggest="error_resilience zlib"
1682 tak_decoder_select="dsputil"
1683 theora_decoder_select="vp3_decoder"
1684 tiff_decoder_suggest="zlib"
1685 tiff_encoder_suggest="zlib"
1686 thp_decoder_select="dsputil hpeldsp"
1687 truehd_decoder_select="mlp_decoder"
1688 truemotion2_decoder_select="dsputil"
1689 truespeech_decoder_select="dsputil"
1690 tscc_decoder_deps="zlib"
1691 twinvq_decoder_select="mdct lsp sinewin"
1692 utvideo_decoder_select="dsputil"
1693 utvideo_encoder_select="dsputil huffman"
1694 vble_decoder_select="dsputil"
1695 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1696 vc1image_decoder_select="vc1_decoder"
1697 vorbis_decoder_select="mdct"
1698 vorbis_encoder_select="mdct"
1699 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1700 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1701 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1702 vp6a_decoder_select="vp6_decoder"
1703 vp6f_decoder_select="vp6_decoder"
1704 vp8_decoder_select="h264pred videodsp"
1705 vp9_decoder_select="videodsp"
1706 webp_decoder_select="vp8_decoder"
1707 wmapro_decoder_select="mdct sinewin"
1708 wmav1_decoder_select="mdct sinewin"
1709 wmav1_encoder_select="mdct sinewin"
1710 wmav2_decoder_select="mdct sinewin"
1711 wmav2_encoder_select="mdct sinewin"
1712 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1713 wmv1_decoder_select="h263_decoder"
1714 wmv1_encoder_select="h263_encoder"
1715 wmv2_decoder_select="h263_decoder videodsp"
1716 wmv2_encoder_select="h263_encoder"
1717 wmv3_decoder_select="vc1_decoder"
1718 wmv3image_decoder_select="wmv3_decoder"
1719 zerocodec_decoder_deps="zlib"
1720 zlib_decoder_deps="zlib"
1721 zlib_encoder_deps="zlib"
1722 zmbv_decoder_deps="zlib"
1723 zmbv_encoder_deps="zlib"
1724
1725 # hardware accelerators
1726 dxva2_deps="dxva2api_h"
1727 vaapi_deps="va_va_h"
1728 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1729 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1730 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1731
1732 h263_vaapi_hwaccel_deps="vaapi"
1733 h263_vaapi_hwaccel_select="h263_decoder"
1734 h263_vdpau_hwaccel_deps="vdpau"
1735 h263_vdpau_hwaccel_select="h263_decoder"
1736 h264_dxva2_hwaccel_deps="dxva2"
1737 h264_dxva2_hwaccel_select="h264_decoder"
1738 h264_vaapi_hwaccel_deps="vaapi"
1739 h264_vaapi_hwaccel_select="h264_decoder"
1740 h264_vda_hwaccel_deps="vda"
1741 h264_vda_hwaccel_select="h264_decoder"
1742 h264_vdpau_hwaccel_deps="vdpau"
1743 h264_vdpau_hwaccel_select="h264_decoder"
1744 mpeg1_vdpau_hwaccel_deps="vdpau"
1745 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1746 mpeg2_dxva2_hwaccel_deps="dxva2"
1747 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1748 mpeg2_vaapi_hwaccel_deps="vaapi"
1749 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1750 mpeg2_vdpau_hwaccel_deps="vdpau"
1751 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1752 mpeg4_vaapi_hwaccel_deps="vaapi"
1753 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1754 mpeg4_vdpau_hwaccel_deps="vdpau"
1755 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1756 vc1_dxva2_hwaccel_deps="dxva2"
1757 vc1_dxva2_hwaccel_select="vc1_decoder"
1758 vc1_vaapi_hwaccel_deps="vaapi"
1759 vc1_vaapi_hwaccel_select="vc1_decoder"
1760 vc1_vdpau_hwaccel_deps="vdpau"
1761 vc1_vdpau_hwaccel_select="vc1_decoder"
1762 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1763 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1764 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1765
1766 # parsers
1767 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1768 mpeg4video_parser_select="error_resilience mpegvideo"
1769 mpegvideo_parser_select="error_resilience mpegvideo"
1770 vc1_parser_select="mpegvideo"
1771
1772 # external libraries
1773 libfaac_encoder_deps="libfaac"
1774 libfaac_encoder_select="audio_frame_queue"
1775 libfdk_aac_decoder_deps="libfdk_aac"
1776 libfdk_aac_encoder_deps="libfdk_aac"
1777 libfdk_aac_encoder_select="audio_frame_queue"
1778 libgsm_decoder_deps="libgsm"
1779 libgsm_encoder_deps="libgsm"
1780 libgsm_ms_decoder_deps="libgsm"
1781 libgsm_ms_encoder_deps="libgsm"
1782 libilbc_decoder_deps="libilbc"
1783 libilbc_encoder_deps="libilbc"
1784 libmp3lame_encoder_deps="libmp3lame"
1785 libmp3lame_encoder_select="audio_frame_queue"
1786 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1787 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1788 libopencore_amrnb_encoder_select="audio_frame_queue"
1789 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1790 libopenjpeg_decoder_deps="libopenjpeg"
1791 libopenjpeg_encoder_deps="libopenjpeg"
1792 libopus_decoder_deps="libopus"
1793 libopus_encoder_deps="libopus"
1794 libopus_encoder_select="audio_frame_queue"
1795 libschroedinger_decoder_deps="libschroedinger"
1796 libschroedinger_encoder_deps="libschroedinger"
1797 libspeex_decoder_deps="libspeex"
1798 libspeex_encoder_deps="libspeex"
1799 libspeex_encoder_select="audio_frame_queue"
1800 libtheora_encoder_deps="libtheora"
1801 libvo_aacenc_encoder_deps="libvo_aacenc"
1802 libvo_aacenc_encoder_select="audio_frame_queue"
1803 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1804 libvorbis_encoder_deps="libvorbis"
1805 libvorbis_encoder_select="audio_frame_queue"
1806 libvpx_vp8_decoder_deps="libvpx"
1807 libvpx_vp8_encoder_deps="libvpx"
1808 libvpx_vp9_decoder_deps="libvpx"
1809 libvpx_vp9_encoder_deps="libvpx"
1810 libwavpack_encoder_deps="libwavpack"
1811 libx264_encoder_deps="libx264"
1812 libxavs_encoder_deps="libxavs"
1813 libxvid_encoder_deps="libxvid"
1814
1815 # demuxers / muxers
1816 ac3_demuxer_select="ac3_parser"
1817 asf_demuxer_select="riffdec"
1818 asf_muxer_select="riffenc"
1819 asf_stream_muxer_select="asf_muxer"
1820 avi_demuxer_select="riffdec"
1821 avi_muxer_select="riffenc"
1822 avisynth_demuxer_deps="avisynth"
1823 avisynth_demuxer_select="riffdec"
1824 caf_demuxer_select="riffdec"
1825 dirac_demuxer_select="dirac_parser"
1826 dxa_demuxer_select="riffdec"
1827 eac3_demuxer_select="ac3_parser"
1828 f4v_muxer_select="mov_muxer"
1829 flac_demuxer_select="flac_parser"
1830 hds_muxer_select="flv_muxer"
1831 hls_muxer_select="mpegts_muxer"
1832 ipod_muxer_select="mov_muxer"
1833 ismv_muxer_select="mov_muxer"
1834 matroska_audio_muxer_select="matroska_muxer"
1835 matroska_demuxer_select="riffdec"
1836 matroska_demuxer_suggest="bzlib lzo zlib"
1837 matroska_muxer_select="riffenc"
1838 mmf_muxer_select="riffenc"
1839 mov_demuxer_select="riffdec"
1840 mov_demuxer_suggest="zlib"
1841 mov_muxer_select="riffenc rtpenc_chain"
1842 mp3_demuxer_select="mpegaudio_parser"
1843 mp4_muxer_select="mov_muxer"
1844 mpegts_muxer_select="adts_muxer latm_muxer"
1845 mpegtsraw_demuxer_select="mpegts_demuxer"
1846 mxf_d10_muxer_select="mxf_muxer"
1847 nut_muxer_select="riffenc"
1848 nuv_demuxer_select="riffdec"
1849 ogg_demuxer_select="golomb"
1850 psp_muxer_select="mov_muxer"
1851 rtp_demuxer_select="sdp_demuxer"
1852 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1853 rtsp_demuxer_select="http_protocol rtpdec"
1854 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1855 sap_demuxer_select="sdp_demuxer"
1856 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1857 sdp_demuxer_select="rtpdec"
1858 smoothstreaming_muxer_select="ismv_muxer"
1859 spdif_muxer_select="aac_parser"
1860 tak_demuxer_select="tak_parser"
1861 tg2_muxer_select="mov_muxer"
1862 tgp_muxer_select="mov_muxer"
1863 w64_demuxer_select="wav_demuxer"
1864 wav_demuxer_select="riffdec"
1865 wav_muxer_select="riffenc"
1866 webm_muxer_select="riffenc"
1867 wtv_demuxer_select="riffdec"
1868 xmv_demuxer_select="riffdec"
1869 xwma_demuxer_select="riffdec"
1870
1871 # indevs / outdevs
1872 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1873 alsa_outdev_deps="alsa_asoundlib_h"
1874 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1875 dv1394_indev_deps="dv1394"
1876 dv1394_indev_select="dv_demuxer"
1877 fbdev_indev_deps="linux_fb_h"
1878 jack_indev_deps="jack_jack_h pthreads"
1879 libcdio_indev_deps="libcdio"
1880 libdc1394_indev_deps="libdc1394"
1881 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1882 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1883 pulse_indev_deps="libpulse"
1884 sndio_indev_deps="sndio_h"
1885 sndio_outdev_deps="sndio_h"
1886 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1887 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1888 vfwcap_indev_extralibs="-lavicap32"
1889 x11grab_indev_deps="x11grab XShmCreateImage"
1890
1891 # protocols
1892 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1893 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1894 ffrtmpcrypt_protocol_select="tcp_protocol"
1895 ffrtmphttp_protocol_deps="!librtmp_protocol"
1896 ffrtmphttp_protocol_select="http_protocol"
1897 gopher_protocol_select="network"
1898 httpproxy_protocol_select="tcp_protocol"
1899 http_protocol_select="tcp_protocol"
1900 https_protocol_select="tls_protocol"
1901 librtmp_protocol_deps="librtmp"
1902 librtmpe_protocol_deps="librtmp"
1903 librtmps_protocol_deps="librtmp"
1904 librtmpt_protocol_deps="librtmp"
1905 librtmpte_protocol_deps="librtmp"
1906 mmsh_protocol_select="http_protocol"
1907 mmst_protocol_select="network"
1908 rtmp_protocol_deps="!librtmp_protocol"
1909 rtmp_protocol_select="tcp_protocol"
1910 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1911 rtmps_protocol_deps="!librtmp_protocol"
1912 rtmps_protocol_select="tls_protocol"
1913 rtmpt_protocol_select="ffrtmphttp_protocol"
1914 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1915 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1916 rtp_protocol_select="udp_protocol"
1917 sctp_protocol_deps="struct_sctp_event_subscribe"
1918 sctp_protocol_select="network"
1919 srtp_protocol_select="rtp_protocol"
1920 tcp_protocol_select="network"
1921 tls_protocol_deps_any="openssl gnutls"
1922 tls_protocol_select="tcp_protocol"
1923 udp_protocol_select="network"
1924 unix_protocol_deps="sys_un_h"
1925 unix_protocol_select="network"
1926
1927 # filters
1928 blackframe_filter_deps="gpl"
1929 boxblur_filter_deps="gpl"
1930 cropdetect_filter_deps="gpl"
1931 delogo_filter_deps="gpl"
1932 drawtext_filter_deps="libfreetype"
1933 frei0r_filter_deps="frei0r dlopen strtok_r"
1934 frei0r_filter_extralibs='$ldl'
1935 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1936 frei0r_src_filter_extralibs='$ldl'
1937 hqdn3d_filter_deps="gpl"
1938 interlace_filter_deps="gpl"
1939 resample_filter_deps="avresample"
1940 ocv_filter_deps="libopencv"
1941 scale_filter_deps="swscale"
1942 yadif_filter_deps="gpl"
1943
1944 # libraries
1945 avcodec_deps="avutil"
1946 avdevice_deps="avutil avcodec avformat"
1947 avfilter_deps="avutil"
1948 avformat_deps="avutil avcodec"
1949 avresample_deps="avutil"
1950 swscale_deps="avutil"
1951
1952 # programs
1953 avconv_deps="avcodec avfilter avformat avresample swscale"
1954 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1955 fps_filter null_filter resample_filter scale_filter
1956 setpts_filter trim_filter"
1957 avplay_deps="avcodec avformat avresample swscale sdl"
1958 avplay_select="rdft"
1959 avprobe_deps="avcodec avformat"
1960 avserver_deps="avformat fork !shared"
1961 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1962 avserver_extralibs='$ldl'
1963
1964 doc_deps="texi2html"
1965
1966 # default parameters
1967
1968 logfile="config.log"
1969
1970 # installation paths
1971 prefix_default="/usr/local"
1972 bindir_default='${prefix}/bin'
1973 datadir_default='${prefix}/share/avconv'
1974 docdir_default='${prefix}/share/doc/libav'
1975 incdir_default='${prefix}/include'
1976 libdir_default='${prefix}/lib'
1977 mandir_default='${prefix}/share/man'
1978 shlibdir_default="$libdir_default"
1979
1980 # toolchain
1981 ar_default="ar"
1982 cc_default="gcc"
1983 host_cc_default="gcc"
1984 cp_f="cp -f"
1985 ln_s="ln -s -f"
1986 nm_default="nm -g"
1987 objformat="elf"
1988 pkg_config_default=pkg-config
1989 ranlib="ranlib"
1990 strip="strip"
1991 yasmexe="yasm"
1992
1993 nogas=":"
1994
1995 # machine
1996 arch_default=$(uname -m)
1997 cpu="generic"
1998
1999 # OS
2000 target_os_default=$(tolower $(uname -s))
2001 host_os=$target_os_default
2002
2003 # configurable options
2004 enable $LIBRARY_LIST $PROGRAM_LIST
2005
2006 enable asm
2007 enable debug
2008 enable doc
2009 enable optimizations
2010 enable safe_bitstream_reader
2011 enable static
2012 enable swscale_alpha
2013
2014 # By default, enable only those hwaccels that have no external dependencies.
2015 enable dxva2 vdpau
2016
2017 # build settings
2018 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2019 LIBPREF="lib"
2020 LIBSUF=".a"
2021 FULLNAME='$(NAME)$(BUILDSUF)'
2022 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2023 SLIBPREF="lib"
2024 SLIBSUF=".so"
2025 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2026 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2027 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2028 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2029 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2030 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2031
2032 asflags_filter=echo
2033 cflags_filter=echo
2034 ldflags_filter=echo
2035
2036 AS_C='-c'
2037 AS_O='-o $@'
2038 CC_C='-c'
2039 CC_E='-E -o $@'
2040 CC_O='-o $@'
2041 LD_O='-o $@'
2042 LD_LIB='-l%'
2043 LD_PATH='-L'
2044 HOSTCC_C='-c'
2045 HOSTCC_O='-o $@'
2046 HOSTLD_O='-o $@'
2047
2048 host_cflags='-O3 -g'
2049 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2050 host_libs='-lm'
2051 host_cflags_filter=echo
2052 host_ldflags_filter=echo
2053
2054 target_path='$(CURDIR)'
2055
2056 # since the object filename is not given with the -MM flag, the compiler
2057 # is only able to print the basename, and we must add the path ourselves
2058 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2059 DEPFLAGS='-MM'
2060
2061 # find source path
2062 if test -f configure; then
2063 source_path=.
2064 else
2065 source_path=$(cd $(dirname "$0"); pwd)
2066 echo "$source_path" | grep -q '[[:blank:]]' &&
2067 die "Out of tree builds are impossible with whitespace in source path."
2068 test -e "$source_path/config.h" &&
2069 die "Out of tree builds are impossible with config.h in source dir."
2070 fi
2071
2072 for v in "$@"; do
2073 r=${v#*=}
2074 l=${v%"$r"}
2075 r=$(sh_quote "$r")
2076 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2077 done
2078
2079 find_things(){
2080 thing=$1
2081 pattern=$2
2082 file=$source_path/$3
2083 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2084 }
2085
2086 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2087 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2088 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2089 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2090 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2091 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2092 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2093 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2094 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2095 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2096 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2097
2098 ALL_COMPONENTS="
2099 $BSF_LIST
2100 $DECODER_LIST
2101 $DEMUXER_LIST
2102 $ENCODER_LIST
2103 $FILTER_LIST
2104 $HWACCEL_LIST
2105 $INDEV_LIST
2106 $MUXER_LIST
2107 $OUTDEV_LIST
2108 $PARSER_LIST
2109 $PROTOCOL_LIST
2110 "
2111
2112 for n in $COMPONENT_LIST; do
2113 v=$(toupper ${n%s})_LIST
2114 eval enable \$$v
2115 eval ${n}_if_any="\$$v"
2116 done
2117
2118 enable $ARCH_EXT_LIST
2119
2120 die_unknown(){
2121 echo "Unknown option \"$1\"."
2122 echo "See $0 --help for available options."
2123 exit 1
2124 }
2125
2126 print_3_columns() {
2127 cat | tr ' ' '\n' | sort | pr -r -3 -t
2128 }
2129
2130 show_list() {
2131 suffix=_$1
2132 shift
2133 echo $* | sed s/$suffix//g | print_3_columns
2134 exit 0
2135 }
2136
2137 rand_list(){
2138 IFS=', '
2139 set -- $*
2140 unset IFS
2141 for thing; do
2142 comp=${thing%:*}
2143 prob=${thing#$comp}
2144 prob=${prob#:}
2145 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2146 echo "prob ${prob:-0.5}"
2147 printf '%s\n' $comp
2148 done
2149 }
2150
2151 do_random(){
2152 action=$1
2153 shift
2154 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2155 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2156 }
2157
2158 for opt do
2159 optval="${opt#*=}"
2160 case "$opt" in
2161 --extra-ldflags=*)
2162 add_ldflags $optval
2163 ;;
2164 --extra-libs=*)
2165 add_extralibs $optval
2166 ;;
2167 --disable-devices)
2168 disable $INDEV_LIST $OUTDEV_LIST
2169 ;;
2170 --enable-debug=*)
2171 debuglevel="$optval"
2172 ;;
2173 --disable-programs)
2174 disable $PROGRAM_LIST
2175 ;;
2176 --disable-everything)
2177 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2178 ;;
2179 --disable-all)
2180 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2181 disable $LIBRARY_LIST $PROGRAM_LIST doc
2182 ;;
2183 --enable-random|--disable-random)
2184 action=${opt%%-random}
2185 do_random ${action#--} $COMPONENT_LIST
2186 ;;
2187 --enable-random=*|--disable-random=*)
2188 action=${opt%%-random=*}
2189 do_random ${action#--} $optval
2190 ;;
2191 --enable-*=*|--disable-*=*)
2192 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2193 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2194 eval list=\$$(toupper $thing)_LIST
2195 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2196 $action $(filter "$name" $list)
2197 ;;
2198 --enable-?*|--disable-?*)
2199 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2200 if is_in $option $COMPONENT_LIST; then
2201 test $action = disable && action=unset
2202 eval $action \$$(toupper ${option%s})_LIST
2203 elif is_in $option $CMDLINE_SELECT; then
2204 $action $option
2205 else
2206 die_unknown $opt
2207 fi
2208 ;;
2209 --list-*)
2210 NAME="${opt#--list-}"
2211 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2212 NAME=${NAME%s}
2213 eval show_list $NAME \$$(toupper $NAME)_LIST
2214 ;;
2215 --help|-h) show_help
2216 ;;
2217 *)
2218 optname="${opt%%=*}"
2219 optname="${optname#--}"
2220 optname=$(echo "$optname" | sed 's/-/_/g')
2221 if is_in $optname $CMDLINE_SET; then
2222 eval $optname='$optval'
2223 elif is_in $optname $CMDLINE_APPEND; then
2224 append $optname "$optval"
2225 else
2226 die_unknown $opt
2227 fi
2228 ;;
2229 esac
2230 done
2231
2232 disabled logging && logfile=/dev/null
2233
2234 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2235 set >> $logfile
2236
2237 test -n "$cross_prefix" && enable cross_compile
2238
2239 if enabled cross_compile; then
2240 test -n "$arch" && test -n "$target_os" ||
2241 die "Must specify target arch and OS when cross-compiling"
2242 fi
2243
2244 ar_default="${cross_prefix}${ar_default}"
2245 cc_default="${cross_prefix}${cc_default}"
2246 nm_default="${cross_prefix}${nm_default}"
2247 pkg_config_default="${cross_prefix}${pkg_config_default}"
2248 ranlib="${cross_prefix}${ranlib}"
2249 strip="${cross_prefix}${strip}"
2250
2251 sysinclude_default="${sysroot}/usr/include"
2252
2253 case "$toolchain" in
2254 clang-asan)
2255 cc_default="clang"
2256 add_cflags -fsanitize=address
2257 add_ldflags -fsanitize=address
2258 ;;
2259 clang-tsan)
2260 cc_default="clang"
2261 add_cflags -fsanitize=thread -pie
2262 add_ldflags -fsanitize=thread -pie
2263 ;;
2264 gcc-asan)
2265 cc_default="gcc"
2266 add_cflags -fsanitize=address
2267 add_ldflags -fsanitize=address
2268 ;;
2269 gcc-tsan)
2270 cc_default="gcc"
2271 add_cflags -fsanitize=thread -pie -fPIC
2272 add_ldflags -fsanitize=thread -pie -fPIC
2273 ;;
2274 valgrind-massif)
2275 target_exec_default="valgrind"
2276 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2277 ;;
2278 valgrind-memcheck)
2279 target_exec_default="valgrind"
2280 target_exec_args="--track-origins=yes --leak-check=full"
2281 ;;
2282 msvc)
2283 # Check whether the current MSVC version needs the C99 converter.
2284 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2285 # support enough of C99 to build libav. Default to the new
2286 # behaviour if the regexp was unable to match anything, since this
2287 # successfully parses the version number of existing supported
2288 # versions that require the converter (MSVC 2010 and 2012).
2289 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2290 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2291 cc_default="cl"
2292 else
2293 cc_default="c99wrap cl"
2294 fi
2295 ld_default="link"
2296 nm_default="dumpbin -symbols"
2297 ar_default="lib"
2298 target_os_default="win32"
2299 # Use a relative path for TMPDIR. This makes sure all the
2300 # ffconf temp files are written with a relative path, avoiding
2301 # issues with msys/win32 path conversion for MSVC parameters
2302 # such as -Fo<file> or -out:<file>.
2303 TMPDIR=.
2304 ;;
2305 icl)
2306 cc_default="icl"
2307 ld_default="xilink"
2308 nm_default="dumpbin -symbols"
2309 ar_default="xilib"
2310 target_os_default="win32"
2311 TMPDIR=.
2312 ;;
2313 gcov)
2314 add_cflags -fprofile-arcs -ftest-coverage
2315 add_ldflags -fprofile-arcs -ftest-coverage
2316 ;;
2317 hardened)
2318 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2319 add_ldflags -Wl,-z,relro -Wl,-z,now
2320 ;;
2321 ?*)
2322 die "Unknown toolchain $toolchain"
2323 ;;
2324 esac
2325
2326 set_default arch cc pkg_config sysinclude target_exec target_os
2327 enabled cross_compile || host_cc_default=$cc
2328 set_default host_cc
2329
2330 if ! $pkg_config --version >/dev/null 2>&1; then
2331 warn "$pkg_config not found, library detection may fail."
2332 pkg_config=false
2333 fi
2334
2335 exesuf() {
2336 case $1 in
2337 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2338 esac
2339 }
2340
2341 EXESUF=$(exesuf $target_os)
2342 HOSTEXESUF=$(exesuf $host_os)
2343
2344 # set temporary file name
2345 : ${TMPDIR:=$TEMPDIR}
2346 : ${TMPDIR:=$TMP}
2347 : ${TMPDIR:=/tmp}
2348
2349 if ! check_cmd mktemp -u XXXXXX; then
2350 # simple replacement for missing mktemp
2351 # NOT SAFE FOR GENERAL USE
2352 mktemp(){
2353 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2354 }
2355 fi
2356
2357 tmpfile(){
2358 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2359 (set -C; exec > $tmp) 2>/dev/null ||
2360 die "Unable to create temporary file in $TMPDIR."
2361 append TMPFILES $tmp
2362 eval $1=$tmp
2363 }
2364
2365 trap 'rm -f -- $TMPFILES' EXIT
2366
2367 tmpfile TMPASM .asm
2368 tmpfile TMPC .c
2369 tmpfile TMPE $EXESUF
2370 tmpfile TMPH .h
2371 tmpfile TMPO .o
2372 tmpfile TMPS .S
2373 tmpfile TMPSH .sh
2374 tmpfile TMPV .ver
2375
2376 unset -f mktemp
2377
2378 chmod +x $TMPE
2379
2380 # make sure we can execute files in $TMPDIR
2381 cat > $TMPSH 2>> $logfile <<EOF
2382 #! /bin/sh
2383 EOF
2384 chmod +x $TMPSH >> $logfile 2>&1
2385 if ! $TMPSH >> $logfile 2>&1; then
2386 cat <<EOF
2387 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2388 variable to another directory and make sure that it is not mounted noexec.
2389 EOF
2390 die "Sanity test failed."
2391 fi
2392
2393 ccc_flags(){
2394 for flag; do
2395 case $flag in
2396 -std=c99) echo -c99 ;;
2397 -mcpu=*) echo -arch ${flag#*=} ;;
2398 -mieee) echo -ieee ;;
2399 -O*|-fast) echo $flag ;;
2400 -fno-math-errno) echo -assume nomath_errno ;;
2401 -g) echo -g3 ;;
2402 -Wall) echo -msg_enable level2 ;;
2403 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2404 -Wl,*) echo $flag ;;
2405 -f*|-W*) ;;
2406 *) echo $flag ;;
2407 esac
2408 done
2409 }
2410
2411 cparser_flags(){
2412 for flag; do
2413 case $flag in
2414 -Wno-switch) echo -Wno-switch-enum ;;
2415 -Wno-format-zero-length) ;;
2416 -Wdisabled-optimization) ;;
2417 -Wno-pointer-sign) echo -Wno-other ;;
2418 *) echo $flag ;;
2419 esac
2420 done
2421 }
2422
2423 msvc_common_flags(){
2424 for flag; do
2425 case $flag in
2426 # In addition to specifying certain flags under the compiler
2427 # specific filters, they must be specified here as well or else the
2428 # generic catch all at the bottom will print the original flag.
2429 -Wall) ;;
2430 -std=c99) ;;
2431 # Common flags
2432 -fomit-frame-pointer) ;;
2433 -g) echo -Z7 ;;
2434 -fno-math-errno) ;;
2435 -fno-common) ;;
2436 -fno-signed-zeros) ;;
2437 -fPIC) ;;
2438 -mthumb) ;;
2439 -march=*) ;;
2440 -lz) echo zlib.lib ;;
2441 -lavifil32) echo vfw32.lib ;;
2442 -lavicap32) echo vfw32.lib user32.lib ;;
2443 -l*) echo ${flag#-l}.lib ;;
2444 *) echo $flag ;;
2445 esac
2446 done
2447 }
2448
2449 msvc_flags(){
2450 msvc_common_flags "$@"
2451 for flag; do
2452 case $flag in
2453 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2454 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2455 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2456 -wd4273 ;;
2457 esac
2458 done
2459 }
2460
2461 icl_flags(){
2462 msvc_common_flags "$@"
2463 for flag; do
2464 case $flag in
2465 # Despite what Intel's documentation says -Wall, which is supported
2466 # on Windows, does enable remarks so disable them here.
2467 -Wall) echo $flag -Qdiag-disable:remark ;;
2468 -std=c99) echo -Qstd=c99 ;;
2469 esac
2470 done
2471 }
2472
2473 pgi_flags(){
2474 for flag; do
2475 case $flag in
2476 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2477 -fomit-frame-pointer) echo -Mnoframe ;;
2478 -g) echo -gopt ;;
2479 *) echo $flag ;;
2480 esac
2481 done
2482 }
2483
2484 suncc_flags(){
2485 for flag; do
2486 case $flag in
2487 -march=*|-mcpu=*)
2488 case "${flag#*=}" in
2489 native) echo -xtarget=native ;;
2490 v9|niagara) echo -xarch=sparc ;;
2491 ultrasparc) echo -xarch=sparcvis ;;
2492 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2493 i586|pentium) echo -xchip=pentium ;;
2494 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2495 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2496 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2497 pentium4*) echo -xtarget=pentium4 ;;
2498 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2499 *-sse3) echo -xarch=sse3 ;;
2500 core2) echo -xarch=ssse3 -xchip=core2 ;;
2501 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2502 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2503 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2504 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2505 k8|opteron|athlon64|athlon-fx)
2506 echo -xarch=sse2a ;;
2507 athlon*) echo -xarch=pentium_proa ;;
2508 esac
2509 ;;
2510 -std=c99) echo -xc99 ;;
2511 -fomit-frame-pointer) echo -xregs=frameptr ;;
2512 -fPIC) echo -KPIC -xcode=pic32 ;;
2513 -W*,*) echo $flag ;;
2514 -f*-*|-W*|-mimpure-text) ;;
2515 -shared) echo -G ;;
2516 *) echo $flag ;;
2517 esac
2518 done
2519 }
2520
2521 tms470_flags(){
2522 for flag; do
2523 case $flag in
2524 -march=*|-mcpu=*)
2525 case "${flag#*=}" in
2526 armv7-a|cortex-a*) echo -mv=7a8 ;;
2527 armv7-r|cortex-r*) echo -mv=7r4 ;;
2528 armv7-m|cortex-m*) echo -mv=7m3 ;;
2529 armv6*|arm11*) echo -mv=6 ;;
2530 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2531 echo -mv=5e ;;
2532 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2533 esac
2534 ;;
2535 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2536 -mfpu=vfp) echo --float_support=vfpv2 ;;
2537 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2538 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2539 -msoft-float) echo --float_support=vfplib ;;
2540 -O[0-3]|-mf=*) echo $flag ;;
2541 -g) echo -g -mn ;;
2542 -pds=*) echo $flag ;;
2543 -D*|-I*) echo $flag ;;
2544 --gcc|--abi=*) echo $flag ;;
2545 -me) echo $flag ;;
2546 esac
2547 done
2548 }
2549
2550 probe_cc(){
2551 pfx=$1
2552 _cc=$2
2553
2554 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2555 unset _ld_o _ldflags _ld_lib _ld_path
2556 unset _depflags _DEPCMD _DEPFLAGS
2557 _flags_filter=echo
2558
2559 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2560 _type=llvm_gcc
2561 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2562 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2563 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2564 _cflags_speed='-O3'
2565 _cflags_size='-Os'
2566 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2567 _type=gcc
2568 gcc_version=$($_cc --version | head -n1)
2569 gcc_basever=$($_cc -dumpversion)
2570 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2571 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2572 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2573 if ! $_cc -dumpversion | grep -q '^2\.'; then
2574 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2575 fi
2576 _cflags_speed='-O3'
2577 _cflags_size='-Os'
2578 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2579 _type=icc
2580 _ident=$($_cc --version | head -n1)
2581 _depflags='-MMD'
2582 _cflags_speed='-O3'
2583 _cflags_size='-Os'
2584 _cflags_noopt='-O1'
2585 elif $_cc -v 2>&1 | grep -q xlc; then
2586 _type=xlc
2587 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2588 _cflags_speed='-O5'
2589 _cflags_size='-O5 -qcompact'
2590 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2591 _type=ccc
2592 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2593 _DEPFLAGS='-M'
2594 _cflags_speed='-fast'
2595 _cflags_size='-O1'
2596 _flags_filter=ccc_flags
2597 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2598 test -d "$sysroot" || die "No valid sysroot specified."
2599 _type=armcc
2600 _ident=$($_cc --vsn | head -n1)
2601 armcc_conf="$PWD/armcc.conf"
2602 $_cc --arm_linux_configure \
2603 --arm_linux_config_file="$armcc_conf" \
2604 --configure_sysroot="$sysroot" \
2605 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2606 die "Error creating armcc configuration file."
2607 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2608 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2609 as_default="${cross_prefix}gcc"
2610 _depflags='-MMD'
2611 _cflags_speed='-O3'
2612 _cflags_size='-Os'
2613 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2614 _type=tms470
2615 _ident=$($_cc -version | head -n1 | tr -s ' ')
2616 _flags='--gcc --abi=eabi -me'
2617 _cc_e='-ppl -fe=$@'
2618 _cc_o='-fe=$@'
2619 _depflags='-ppa -ppd=$(@:.o=.d)'
2620 _cflags_speed='-O3 -mf=5'
2621 _cflags_size='-O3 -mf=2'
2622 _flags_filter=tms470_flags
2623 elif $_cc -v 2>&1 | grep -q clang; then
2624 _type=clang
2625 _ident=$($_cc --version | head -n1)
2626 _depflags='-MMD'
2627 _cflags_speed='-O3'
2628 _cflags_size='-Os'
2629 elif $_cc -V 2>&1 | grep -q Sun; then
2630 _type=suncc
2631 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2632 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2633 _DEPFLAGS='-xM1 -xc99'
2634 _ldflags='-std=c99'
2635 _cflags_speed='-O5'
2636 _cflags_size='-O5 -xspace'
2637 _flags_filter=suncc_flags
2638 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2639 _type=pathscale
2640 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2641 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2642 _cflags_speed='-O2'
2643 _cflags_size='-Os'
2644 _flags_filter='filter_out -Wdisabled-optimization'
2645 elif $_cc -v 2>&1 | grep -q Open64; then
2646 _type=open64
2647 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2648 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2649 _cflags_speed='-O2'
2650 _cflags_size='-Os'
2651 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2652 elif $_cc -V 2>&1 | grep -q Portland; then
2653 _type=pgi
2654 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2655 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2656 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2657 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2658 _cflags_noopt="-O1"
2659 _flags_filter=pgi_flags
2660 elif $_cc 2>&1 | grep -q Microsoft; then
2661 _type=msvc
2662 _ident=$($cc 2>&1 | head -n1)
2663 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2664 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2665 _cflags_speed="-O2"
2666 _cflags_size="-O1"
2667 if $_cc 2>&1 | grep -q Linker; then
2668 _ld_o='-out:$@'
2669 else
2670 _ld_o='-Fe$@'
2671 fi
2672 _cc_o='-Fo$@'
2673 _cc_e='-P -Fi$@'
2674 _flags_filter=msvc_flags
2675 _ld_lib='lib%.a'
2676 _ld_path='-libpath:'
2677 _flags='-nologo'
2678 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2679 if [ $pfx = hostcc ]; then
2680 append _cflags -Dsnprintf=_snprintf
2681 fi
2682 elif $_cc 2>&1 | grep -q Intel; then
2683 _type=icl
2684 _ident=$($cc 2>&1 | head -n1)
2685 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2686 # Not only is O3 broken on 13.x+ but it is slower on all previous
2687 # versions (tested) as well.
2688 _cflags_speed="-O2"
2689 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2690 if $_cc 2>&1 | grep -q Linker; then
2691 _ld_o='-out:$@'
2692 else
2693 _ld_o='-Fe$@'
2694 fi
2695 _cc_o='-Fo$@'
2696 _cc_e='-P'
2697 _flags_filter=icl_flags
2698 _ld_lib='lib%.a'
2699 _ld_path='-libpath:'
2700 # -Qdiag-error to make icl error when seeing certain unknown arguments
2701 _flags='-nologo -Qdiag-error:4044,10157'
2702 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2703 # with MSVC which enables it by default.
2704 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2705 if [ $pfx = hostcc ]; then
2706 append _cflags -Dsnprintf=_snprintf
2707 fi
2708 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2709 _type=cparser
2710 _ident=$($_cc --version | head -n1)
2711 _depflags='-MMD'
2712 _cflags_speed='-O4'
2713 _cflags_size='-O2'
2714 _flags_filter=cparser_flags
2715 fi
2716
2717 eval ${pfx}_type=\$_type
2718 eval ${pfx}_ident=\$_ident
2719 }
2720
2721 set_ccvars(){
2722 eval ${1}_C=\${_cc_c-\${${1}_C}}
2723 eval ${1}_E=\${_cc_e-\${${1}_E}}
2724 eval ${1}_O=\${_cc_o-\${${1}_O}}
2725
2726 if [ -n "$_depflags" ]; then
2727 eval ${1}_DEPFLAGS=\$_depflags
2728 else
2729 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2730 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2731 eval DEP${1}FLAGS=\$_flags
2732 fi
2733 }
2734
2735 probe_cc cc "$cc"
2736 cflags_filter=$_flags_filter
2737 cflags_speed=$_cflags_speed
2738 cflags_size=$_cflags_size
2739 cflags_noopt=$_cflags_noopt
2740 add_cflags $_flags $_cflags
2741 cc_ldflags=$_ldflags
2742 set_ccvars CC
2743
2744 probe_cc hostcc "$host_cc"
2745 host_cflags_filter=$_flags_filter
2746 add_host_cflags $_flags $_cflags
2747 set_ccvars HOSTCC
2748
2749 test -n "$cc_type" && enable $cc_type ||
2750 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2751
2752 : ${as_default:=$cc}
2753 : ${dep_cc_default:=$cc}
2754 : ${ld_default:=$cc}
2755 : ${host_ld_default:=$host_cc}
2756 set_default ar as dep_cc ld host_ld
2757
2758 probe_cc as "$as"
2759 asflags_filter=$_flags_filter
2760 add_asflags $_flags $_cflags
2761 set_ccvars AS
2762
2763 probe_cc ld "$ld"
2764 ldflags_filter=$_flags_filter
2765 add_ldflags $_flags $_ldflags
2766 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2767 LD_O=${_ld_o-$LD_O}
2768 LD_LIB=${_ld_lib-$LD_LIB}
2769 LD_PATH=${_ld_path-$LD_PATH}
2770
2771 probe_cc hostld "$host_ld"
2772 host_ldflags_filter=$_flags_filter
2773 add_host_ldflags $_flags $_ldflags
2774 HOSTLD_O=${_ld_o-$HOSTLD_O}
2775
2776 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2777 probe_cc depcc "$dep_cc"
2778 CCDEP=${_DEPCMD:-$DEPCMD}
2779 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2780 DEPCCFLAGS=$_flags
2781 fi
2782
2783 if $ar 2>&1 | grep -q Microsoft; then
2784 arflags="-nologo"
2785 ar_o='-out:$@'
2786 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2787 arflags="rq"
2788 ar_o='$@'
2789 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2790 arflags='-Xany -r -c'
2791 ar_o='$@'
2792 else
2793 arflags="rc"
2794 ar_o='$@'
2795 fi
2796
2797 add_cflags $extra_cflags
2798 add_asflags $extra_cflags
2799
2800 if test -n "$sysroot"; then
2801 case "$cc_type" in
2802 gcc|llvm_gcc|clang)
2803 add_cppflags --sysroot="$sysroot"
2804 add_ldflags --sysroot="$sysroot"
2805 ;;
2806 tms470)
2807 add_cppflags -I"$sysinclude"
2808 add_ldflags --sysroot="$sysroot"
2809 ;;
2810 esac
2811 fi
2812
2813 if test "$cpu" = host; then
2814 enabled cross_compile &&
2815 die "--cpu=host makes no sense when cross-compiling."
2816
2817 case "$cc_type" in
2818 gcc|llvm_gcc)
2819 check_native(){
2820 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2821 sed -n "/cc1.*$1=/{
2822 s/.*$1=\\([^ ]*\\).*/\\1/
2823 p
2824 q
2825 }" $TMPE
2826 }
2827 cpu=$(check_native -march || check_native -mcpu)
2828 ;;
2829 esac
2830
2831 test "${cpu:-host}" = host &&
2832 die "--cpu=host not supported with compiler $cc"
2833 fi
2834
2835 # Deal with common $arch aliases
2836 case "$arch" in
2837 aarch64|arm64)
2838 arch="aarch64"
2839 ;;
2840 arm*)
2841 arch="arm"
2842 ;;
2843 mips*|IP*)
2844 arch="mips"
2845 ;;
2846 parisc*|hppa*)
2847 arch="parisc"
2848 ;;
2849 "Power Macintosh"|ppc*|powerpc*)
2850 arch="ppc"
2851 ;;
2852 s390|s390x)
2853 arch="s390"
2854 ;;
2855 sh4|sh)
2856 arch="sh4"
2857 ;;
2858 sun4u|sparc*)
2859 arch="sparc"
2860 ;;
2861 tilegx|tile-gx)
2862 arch="tilegx"
2863 ;;
2864 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2865 arch="x86"
2866 ;;
2867 esac
2868
2869 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2870 enable $arch
2871
2872 # Add processor-specific flags
2873 if enabled aarch64; then
2874
2875 case $cpu in
2876 armv*)
2877 cpuflags="-march=$cpu"
2878 ;;
2879 *)
2880 cpuflags="-mcpu=$cpu"
2881 ;;
2882 esac
2883
2884 elif enabled alpha; then
2885
2886 cpuflags="-mcpu=$cpu"
2887
2888 elif enabled arm; then
2889
2890 check_arm_arch() {
2891 check_cpp_condition stddef.h \
2892 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2893 $cpuflags
2894 }
2895
2896 probe_arm_arch() {
2897 if check_arm_arch 4; then echo armv4;
2898 elif check_arm_arch 4T; then echo armv4t;
2899 elif check_arm_arch 5; then echo armv5;
2900 elif check_arm_arch 5E; then echo armv5e;
2901 elif check_arm_arch 5T; then echo armv5t;
2902 elif check_arm_arch 5TE; then echo armv5te;
2903 elif check_arm_arch 5TEJ; then echo armv5te;
2904 elif check_arm_arch 6; then echo armv6;
2905 elif check_arm_arch 6J; then echo armv6j;
2906 elif check_arm_arch 6K; then echo armv6k;
2907 elif check_arm_arch 6Z; then echo armv6z;
2908 elif check_arm_arch 6ZK; then echo armv6zk;
2909 elif check_arm_arch 6T2; then echo armv6t2;
2910 elif check_arm_arch 7; then echo armv7;
2911 elif check_arm_arch 7A 7_A; then echo armv7-a;
2912 elif check_arm_arch 7R 7_R; then echo armv7-r;
2913 elif check_arm_arch 7M 7_M; then echo armv7-m;
2914 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2915 elif check_arm_arch 8A 8_A; then echo armv8-a;
2916 fi
2917 }
2918
2919 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2920
2921 case $cpu in
2922 armv*)
2923 cpuflags="-march=$cpu"
2924 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2925 ;;
2926 *)
2927 cpuflags="-mcpu=$cpu"
2928 case $cpu in
2929 cortex-a*) subarch=armv7a ;;
2930 cortex-r*) subarch=armv7r ;;
2931 cortex-m*) enable thumb; subarch=armv7m ;;
2932 arm11*) subarch=armv6 ;;
2933 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2934 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2935 *) subarch=$(probe_arm_arch) ;;
2936 esac
2937 ;;
2938 esac
2939
2940 case "$subarch" in
2941 armv5t*) enable fast_clz ;;
2942 armv[6-8]*) enable fast_clz fast_unaligned ;;
2943 esac
2944
2945 elif enabled avr32; then
2946
2947 case $cpu in
2948 ap7[02]0[0-2])
2949 subarch="avr32_ap"
2950 cpuflags="-mpart=$cpu"
2951 ;;
2952 ap)
2953 subarch="avr32_ap"
2954 cpuflags="-march=$cpu"
2955 ;;
2956 uc3[ab]*)
2957 subarch="avr32_uc"
2958 cpuflags="-mcpu=$cpu"
2959 ;;
2960 uc)
2961 subarch="avr32_uc"
2962 cpuflags="-march=$cpu"
2963 ;;
2964 esac
2965
2966 elif enabled bfin; then
2967
2968 cpuflags="-mcpu=$cpu"
2969
2970 elif enabled mips; then
2971
2972 cpuflags="-march=$cpu"
2973
2974 elif enabled ppc; then
2975
2976 case $(tolower $cpu) in
2977 601|ppc601|powerpc601)
2978 cpuflags="-mcpu=601"
2979 disable altivec
2980 ;;
2981 603*|ppc603*|powerpc603*)
2982 cpuflags="-mcpu=603"
2983 disable altivec
2984 ;;
2985 604*|ppc604*|powerpc604*)
2986 cpuflags="-mcpu=604"
2987 disable altivec
2988 ;;
2989 g3|75*|ppc75*|powerpc75*)
2990 cpuflags="-mcpu=750"
2991 disable altivec
2992 ;;
2993 g4|745*|ppc745*|powerpc745*)
2994 cpuflags="-mcpu=7450"
2995 ;;
2996 74*|ppc74*|powerpc74*)
2997 cpuflags="-mcpu=7400"
2998 ;;
2999 g5|970|ppc970|powerpc970)
3000 cpuflags="-mcpu=970"
3001 ;;
3002 power[3-7]*)
3003 cpuflags="-mcpu=$cpu"
3004 ;;
3005 cell)
3006 cpuflags="-mcpu=cell"
3007 enable ldbrx
3008 ;;
3009 e500mc)
3010 cpuflags="-mcpu=e500mc"
3011 disable altivec
3012 ;;
3013 e500v2)
3014 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3015 disable altivec
3016 ;;
3017 e500)
3018 cpuflags="-mcpu=8540 -mhard-float"
3019 disable altivec
3020 ;;
3021 esac
3022
3023 elif enabled sparc; then
3024
3025 case $cpu in
3026 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3027 cpuflags="-mcpu=$cpu"
3028 disable vis
3029 ;;
3030 ultrasparc*|niagara[234])
3031 cpuflags="-mcpu=$cpu"
3032 ;;
3033 esac
3034
3035 elif enabled x86; then
3036
3037 case $cpu in
3038 i[345]86|pentium)
3039 cpuflags="-march=$cpu"
3040 disable mmx
3041 ;;
3042 # targets that do NOT support nopl and conditional mov (cmov)
3043 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3044 cpuflags="-march=$cpu"
3045 disable i686
3046 ;;
3047 # targets that do support nopl and conditional mov (cmov)
3048 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3049 cpuflags="-march=$cpu"
3050 enable i686
3051 enable fast_cmov
3052 ;;
3053 # targets that do support conditional mov but on which it's slow
3054 pentium4|pentium4m|prescott|nocona)
3055 cpuflags="-march=$cpu"
3056 enable i686
3057 disable fast_cmov
3058 ;;
3059 esac
3060
3061 fi
3062
3063 if [ "$cpu" != generic ]; then
3064 add_cflags $cpuflags
3065 add_asflags $cpuflags
3066 fi
3067
3068 # compiler sanity check
3069 check_exec <<EOF
3070 int main(void){ return 0; }
3071 EOF
3072 if test "$?" != 0; then
3073 echo "$cc is unable to create an executable file."
3074 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3075 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3076 echo "Only do this if you know what cross compiling means."
3077 fi
3078 die "C compiler test failed."
3079 fi
3080
3081 add_cppflags -D_ISOC99_SOURCE
3082 check_cflags -std=c99
3083 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3084 #include <stdlib.h>
3085 EOF
3086 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3087 #include <stdlib.h>
3088 EOF
3089
3090 check_host_cflags -std=c99
3091 check_host_cflags -Wall
3092
3093 check_64bit(){
3094 arch32=$1
3095 arch64=$2
3096 expr=$3
3097 check_code cc "" "int test[2*($expr) - 1]" &&
3098 subarch=$arch64 || subarch=$arch32
3099 }
3100
3101 case "$arch" in
3102 aarch64|alpha|ia64)
3103 spic=$shared
3104 ;;
3105 mips)
3106 check_64bit mips mips64 '_MIPS_SIM > 1'
3107 spic=$shared
3108 ;;
3109 parisc)
3110 check_64bit parisc parisc64 'sizeof(void *) > 4'
3111 spic=$shared
3112 ;;
3113 ppc)
3114 check_64bit ppc ppc64 'sizeof(void *) > 4'
3115 spic=$shared
3116 ;;
3117 sparc)
3118 check_64bit sparc sparc64 'sizeof(void *) > 4'
3119 spic=$shared
3120 ;;
3121 x86)
3122 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3123 if test "$subarch" = "x86_64"; then
3124 spic=$shared
3125 fi
3126 ;;
3127 esac
3128
3129 enable $subarch
3130 enabled spic && enable_weak pic
3131
3132 # OS specific
3133 case $target_os in
3134 aix)
3135 SHFLAGS=-shared
3136 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3137 enabled shared && add_ldflags -Wl,-brtl
3138 ;;
3139 haiku)
3140 prefix_default="/boot/common"
3141 network_extralibs="-lnetwork"
3142 host_libs=
3143 ;;
3144 sunos)
3145 SHFLAGS='-shared -Wl,-h,$$(@F)'
3146 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3147 network_extralibs="-lsocket -lnsl"
3148 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3149 # When using suncc to build, the Solaris linker will mark
3150 # an executable with each instruction set encountered by
3151 # the Solaris assembler. As our libraries contain their own
3152 # guards for processor-specific code, instead suppress
3153 # generation of the HWCAPS ELF section on Solaris x86 only.
3154 enabled_all suncc x86 &&
3155 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3156 add_ldflags -Wl,-M,mapfile
3157 nm_default='nm -P -g'
3158 ;;
3159 netbsd)
3160 disable symver
3161 oss_indev_extralibs="-lossaudio"
3162 oss_outdev_extralibs="-lossaudio"
3163 ;;
3164 openbsd|bitrig)
3165 disable symver
3166 SHFLAGS='-shared'
3167 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3168 SLIB_INSTALL_LINKS=
3169 oss_indev_extralibs="-lossaudio"
3170 oss_outdev_extralibs="-lossaudio"
3171 ;;
3172 dragonfly)
3173 disable symver
3174 ;;
3175 freebsd)
3176 ;;
3177 bsd/os)
3178 add_extralibs -lpoll -lgnugetopt
3179 ;;
3180 darwin)
3181 gas="gas-preprocessor.pl $cc"
3182 enabled ppc && add_asflags -force_cpusubtype_ALL
3183 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3184 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3185 add_ldflags -Wl,-dynamic,-search_paths_first
3186 SLIBSUF=".dylib"
3187 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3188 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3189 objformat="macho"
3190 enabled x86_64 && objformat="macho64"
3191 enabled_any pic shared ||
3192 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3193 ;;
3194 mingw32*)
3195 if test $target_os = "mingw32ce"; then
3196 disable network
3197 else
3198 target_os=mingw32
3199 fi
3200 LIBTARGET=i386
3201 if enabled x86_64; then
3202 LIBTARGET="i386:x86-64"
3203 elif enabled arm; then
3204 LIBTARGET=arm-wince
3205 fi
3206 check_ldflags -Wl,--nxcompat
3207 check_ldflags -Wl,--dynamicbase
3208 shlibdir_default="$bindir_default"
3209 SLIBPREF=""
3210 SLIBSUF=".dll"
3211 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3212 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3213 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3214 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3215 SLIB_INSTALL_LINKS=
3216 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3217 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3218 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3219 objformat="win32"
3220 dlltool="${cross_prefix}dlltool"
3221 ranlib=:
3222 enable dos_paths
3223 ;;
3224 win32|win64)
3225 disable symver
3226 if enabled shared; then
3227 # Link to the import library instead of the normal static library
3228 # for shared libs.
3229 LD_LIB='%.lib'
3230 # Cannot build both shared and static libs with MSVC or icl.
3231 disable static
3232 fi
3233 shlibdir_default="$bindir_default"
3234 SLIBPREF=""
3235 SLIBSUF=".dll"
3236 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3237 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3238 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3239 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3240 SLIB_INSTALL_LINKS=
3241 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3242 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3243 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3244 objformat="win32"
3245 ranlib=:
3246 enable dos_paths
3247 ;;
3248 cygwin*)
3249 target_os=cygwin
3250 shlibdir_default="$bindir_default"
3251 SLIBPREF="cyg"
3252 SLIBSUF=".dll"
3253 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3254 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3255 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3256 SLIB_INSTALL_LINKS=
3257 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3258 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3259 objformat="win32"
3260 enable dos_paths
3261 ;;
3262 *-dos|freedos|opendos)
3263 network_extralibs="-lsocket"
3264 objformat="coff"
3265 enable dos_paths
3266 add_cppflags -U__STRICT_ANSI__
3267 ;;
3268 linux)
3269 enable dv1394
3270 ;;
3271 irix*)
3272 target_os=irix
3273 ranlib="echo ignoring ranlib"
3274 ;;
3275 os/2*)
3276 ln_s="cp -f"
3277 objformat="aout"
3278 add_cppflags -D_GNU_SOURCE
3279 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3280 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3281 LIBSUF="_s.a"
3282 SLIBPREF=""
3283 SLIBSUF=".dll"
3284 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3285 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3286 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3287 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3288 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3289 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3290 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3291 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3292 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3293 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3294 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3295 enable dos_paths
3296 ;;
3297 gnu/kfreebsd)
3298 add_cppflags -D_BSD_SOURCE
3299 ;;
3300 gnu)
3301 ;;
3302 qnx)
3303 add_cppflags -D_QNX_SOURCE
3304 network_extralibs="-lsocket"
3305 ;;
3306 symbian)
3307 SLIBSUF=".dll"
3308 enable dos_paths
3309 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3310 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3311 add_ldflags -Wl,--target1-abs,--no-undefined \
3312 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3313 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3314 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3315 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3316 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3317 ;;
3318 osf1)
3319 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3320 ;;
3321 minix)
3322 ;;
3323 plan9)
3324 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3325 -D_REENTRANT_SOURCE \
3326 -D_RESEARCH_SOURCE \
3327 -DFD_SETSIZE=96 \
3328 -DHAVE_SOCK_OPTS
3329 add_compat strtod.o strtod=avpriv_strtod
3330 network_extralibs='-lbsd'
3331 exeobjs=compat/plan9/main.o
3332 disable avserver
3333 cp_f='cp'
3334 ;;
3335 none)
3336 ;;
3337 *)
3338 die "Unknown OS '$target_os'."
3339 ;;
3340 esac
3341
3342 # determine libc flavour
3343
3344 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3345 if check_cpp_condition features.h "defined __UCLIBC__"; then
3346 libc_type=uclibc
3347 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3348 elif check_cpp_condition features.h "defined __GLIBC__"; then
3349 libc_type=glibc
3350 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3351 # MinGW headers can be installed on Cygwin, so check for newlib first.
3352 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3353 libc_type=newlib
3354 add_cppflags -U__STRICT_ANSI__
3355 elif check_header _mingw.h; then
3356 libc_type=mingw
3357 check_cpp_condition _mingw.h \
3358 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3359 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3360 die "ERROR: MinGW runtime version must be >= 3.15."
3361 add_cppflags -U__STRICT_ANSI__
3362 elif check_func_headers stdlib.h _get_doserrno; then
3363 libc_type=msvcrt
3364 add_compat strtod.o strtod=avpriv_strtod
3365 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3366 _snprintf=avpriv_snprintf \
3367 vsnprintf=avpriv_vsnprintf
3368 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3369 # 0x601 by default unless something else is set by the user.
3370 # This can easily lead to us detecting functions only present
3371 # in such new versions and producing binaries requiring windows 7.0.
3372 # Therefore explicitly set the default to XP unless the user has
3373 # set something else on the command line.
3374 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3375 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3376 libc_type=klibc
3377 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3378 libc_type=bionic
3379 add_compat strtod.o strtod=avpriv_strtod
3380 fi
3381
3382 test -n "$libc_type" && enable $libc_type
3383
3384 # hacks for compiler/libc/os combinations
3385
3386 if enabled_all tms470 glibc; then
3387 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3388 add_cppflags -D__USER_LABEL_PREFIX__=
3389 add_cppflags -D__builtin_memset=memset
3390 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3391 add_cflags -pds=48 # incompatible redefinition of macro
3392 fi
3393
3394 if enabled_all ccc glibc; then
3395 add_ldflags -Wl,-z,now # calls to libots crash without this
3396 fi
3397
3398 esc(){
3399 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3400 }
3401
3402 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3403
3404 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3405
3406 set_default $PATHS_LIST
3407 set_default nm
3408
3409 # we need to build at least one lib type
3410 if ! enabled_any static shared; then
3411 cat <<EOF
3412 At least one library type must be built.
3413 Specify --enable-static to build the static libraries or --enable-shared to
3414 build the shared libraries as well. To only build the shared libraries specify
3415 --disable-static in addition to --enable-shared.
3416 EOF
3417 exit 1;
3418 fi
3419
3420 die_license_disabled() {
3421 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3422 }
3423
3424 die_license_disabled gpl libcdio
3425 die_license_disabled gpl libx264
3426 die_license_disabled gpl libxavs
3427 die_license_disabled gpl libxvid
3428 die_license_disabled gpl x11grab
3429
3430 die_license_disabled nonfree libfaac
3431 die_license_disabled nonfree libfdk_aac
3432 die_license_disabled nonfree openssl
3433
3434 die_license_disabled version3 libopencore_amrnb
3435 die_license_disabled version3 libopencore_amrwb
3436 die_license_disabled version3 libvo_aacenc
3437 die_license_disabled version3 libvo_amrwbenc
3438
3439 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3440
3441 disabled optimizations || check_cflags -fomit-frame-pointer
3442
3443 enable_weak_pic() {
3444 disabled pic && return
3445 enable pic
3446 add_cppflags -DPIC
3447 case "$target_os" in
3448 mingw*|cygwin*)
3449 ;;
3450 *)
3451 add_cflags -fPIC
3452 ;;
3453 esac
3454 add_asflags -fPIC
3455 }
3456
3457 enabled pic && enable_weak_pic
3458
3459 check_cc <<EOF || die "Symbol mangling check failed."
3460 int ff_extern;
3461 EOF
3462 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3463 extern_prefix=${sym%%ff_extern*}
3464
3465 check_cc <<EOF && enable_weak inline_asm
3466 void foo(void) { __asm__ volatile ("" ::); }
3467 EOF
3468
3469 _restrict=
3470 for restrict_keyword in restrict __restrict__ __restrict; do
3471 check_cc <<EOF && _restrict=$restrict_keyword && break
3472 void foo(char * $restrict_keyword p);
3473 EOF
3474 done
3475
3476 check_cc <<EOF && enable pragma_deprecated
3477 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3478 EOF
3479
3480 check_cc <<EOF && enable attribute_packed
3481 struct { int x; } __attribute__((packed)) x;
3482 EOF
3483
3484 check_cc <<EOF && enable attribute_may_alias
3485 union { int x; } __attribute__((may_alias)) x;
3486 EOF
3487
3488 check_cc <<EOF || die "endian test failed"
3489 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3490 EOF
3491 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3492
3493 check_inline_asm inline_asm_labels '"1:\n"'
3494
3495 if enabled alpha; then
3496
3497 check_cflags -mieee
3498
3499 elif enabled arm; then
3500
3501 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3502 enabled thumb && check_cflags -mthumb || check_cflags -marm
3503 nogas=die
3504
3505 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3506 enable vfp_args
3507 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3508 case "${cross_prefix:-$cc}" in
3509 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3510 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3511 __asm__ (".eabi_attribute 28, 1");
3512 int main(void) { return 0; }
3513 EOF
3514 esac
3515 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3516 fi
3517
3518 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3519 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3520 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3521 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3522 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3523 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3524
3525 [ $target_os = linux ] ||
3526 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3527 $ARCH_EXT_LIST_ARM
3528
3529 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3530 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3531
3532 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3533
3534 elif enabled mips; then
3535
3536 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3537
3538 elif enabled parisc; then
3539
3540 if enabled gcc; then
3541 case $($cc -dumpversion) in
3542 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3543 esac
3544 fi
3545
3546 elif enabled ppc; then
3547
3548 enable local_aligned_8 local_aligned_16
3549
3550 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3551 check_inline_asm ibm_asm '"add 0, 0, 0"'
3552 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3553 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3554
3555 # AltiVec flags: The FSF version of GCC differs from the Apple version
3556 if enabled altivec; then
3557 nogas=warn
3558 check_cflags -maltivec -mabi=altivec &&
3559 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3560 check_cflags -faltivec
3561
3562 # check if our compiler supports Motorola AltiVec C API
3563 check_cc <<EOF || disable altivec
3564 $inc_altivec_h
3565 int main(void) {
3566 vector signed int v1 = (vector signed int) { 0 };
3567 vector signed int v2 = (vector signed int) { 1 };
3568 v1 = vec_add(v1, v2);
3569 return 0;
3570 }
3571 EOF
3572
3573 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3574 fi
3575
3576 elif enabled sparc; then
3577
3578 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3579
3580 elif enabled x86; then
3581
3582 check_builtin rdtsc intrin.h "__rdtsc()"
3583 check_builtin mm_empty mmintrin.h "_mm_empty()"
3584
3585 enable local_aligned_8 local_aligned_16
3586
3587 # check whether EBP is available on x86
3588 # As 'i' is stored on the stack, this program will crash
3589 # if the base pointer is used to access it because the
3590 # base pointer is cleared in the inline assembly code.
3591 check_exec_crash <<EOF && enable ebp_available
3592 volatile int i=0;
3593 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3594 return i;
3595 EOF
3596
3597 # check whether EBX is available on x86
3598 check_inline_asm ebx_available '""::"b"(0)' &&
3599 check_inline_asm ebx_available '"":::"%ebx"'
3600
3601 # check whether xmm clobbers are supported
3602 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3603
3604 # check whether binutils is new enough to compile SSSE3/MMXEXT
3605 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3606 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3607
3608 if ! disabled_any asm mmx yasm; then
3609 if check_cmd $yasmexe --version; then
3610 enabled x86_64 && yasm_extra="-m amd64"
3611 yasm_debug="-g dwarf2"
3612 elif check_cmd nasm -v; then
3613 yasmexe=nasm
3614 yasm_debug="-g -F dwarf"
3615 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3616 fi
3617
3618 YASMFLAGS="-f $objformat $yasm_extra"
3619 enabled pic && append YASMFLAGS "-DPIC"
3620 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3621 case "$objformat" in
3622 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3623 esac
3624
3625 check_yasm "movbe ecx, [5]" && enable yasm ||
3626 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3627 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3628 check_yasm "CPU amdnop" && enable cpunop
3629 fi
3630
3631 case "$cpu" in
3632 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3633 disable fast_clz
3634 ;;
3635 esac
3636
3637 fi
3638
3639 if enabled asm; then
3640 as=${gas:=$as}
3641 check_as <<EOF && enable gnu_as || \
3642 $nogas "GNU assembler not found, install gas-preprocessor"
3643 .macro m n
3644 \n: .int 0
3645 .endm
3646 m x
3647 EOF
3648 fi
3649
3650 check_ldflags -Wl,--as-needed
3651
3652 if check_func dlopen; then
3653 ldl=
3654 elif check_func dlopen -ldl; then
3655 ldl=-ldl
3656 fi
3657
3658 if ! disabled network; then
3659 check_type "sys/types.h sys/socket.h" socklen_t
3660 check_type netdb.h "struct addrinfo"
3661 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3662 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3663 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3664 check_type netinet/in.h "struct sockaddr_in6"
3665 check_type poll.h "struct pollfd"
3666 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3667 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3668 check_type netinet/sctp.h "struct sctp_event_subscribe"
3669 check_func getaddrinfo $network_extralibs
3670 check_func getservbyport $network_extralibs
3671 # Prefer arpa/inet.h over winsock2
3672 if check_header arpa/inet.h ; then
3673 check_func closesocket
3674 elif check_header winsock2.h ; then
3675 check_func_headers winsock2.h closesocket -lws2 &&
3676 network_extralibs="-lws2" ||
3677 { check_func_headers winsock2.h closesocket -lws2_32 &&
3678 network_extralibs="-lws2_32"; }
3679 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3680 check_type ws2tcpip.h socklen_t
3681 check_type ws2tcpip.h "struct addrinfo"
3682 check_type ws2tcpip.h "struct group_source_req"
3683 check_type ws2tcpip.h "struct ip_mreq_source"
3684 check_type ws2tcpip.h "struct ipv6_mreq"
3685 check_type winsock2.h "struct pollfd"
3686 check_type ws2tcpip.h "struct sockaddr_in6"
3687 check_type ws2tcpip.h "struct sockaddr_storage"
3688 check_struct winsock2.h "struct sockaddr" sa_len
3689 else
3690 disable network
3691 fi
3692 fi
3693
3694 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3695 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3696
3697 check_func fcntl
3698 check_func fork
3699 check_func_headers stdlib.h getenv
3700 check_func gethrtime
3701 check_func getopt
3702 check_func getrusage
3703 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3704 check_func gettimeofday
3705 check_func inet_aton $network_extralibs
3706 check_func isatty
3707 check_func localtime_r
3708 check_func ${malloc_prefix}memalign && enable memalign
3709 check_func mkstemp
3710 check_func mmap
3711 check_func mprotect
3712 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3713 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3714 check_func setrlimit
3715 check_func strerror_r
3716 check_func strptime
3717 check_func strtok_r
3718 check_func sched_getaffinity
3719 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3720 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3721 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3722 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3723 check_func sysconf
3724 check_func sysctl
3725 check_func usleep
3726 check_func_headers io.h setmode
3727 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3728 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3729 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3730 check_func_headers windows.h GetProcessAffinityMask
3731 check_func_headers windows.h GetProcessTimes
3732 check_func_headers windows.h GetSystemTimeAsFileTime
3733 check_func_headers windows.h MapViewOfFile
3734 check_func_headers windows.h SetConsoleTextAttribute
3735 check_func_headers windows.h Sleep
3736 check_func_headers windows.h VirtualAlloc
3737
3738 check_header direct.h
3739 check_header dlfcn.h
3740 check_header dxva.h
3741 check_header dxva2api.h
3742 check_header io.h
3743 check_header malloc.h
3744 check_header poll.h
3745 check_header sys/mman.h
3746 check_header sys/param.h
3747 check_header sys/resource.h
3748 check_header sys/select.h
3749 check_header sys/time.h
3750 check_header sys/un.h
3751 check_header unistd.h
3752 check_header vdpau/vdpau.h
3753 check_header vdpau/vdpau_x11.h
3754 check_header VideoDecodeAcceleration/VDADecoder.h
3755 check_header windows.h
3756 check_header X11/extensions/XvMClib.h
3757
3758 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3759 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3760
3761 if ! disabled w32threads && ! enabled pthreads; then
3762 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3763 fi
3764
3765 # check for some common methods of building with pthread support
3766 # do this before the optional library checks as some of them require pthreads
3767 if ! disabled pthreads && ! enabled w32threads; then
3768 enable pthreads
3769 if check_func pthread_create; then
3770 :
3771 elif check_func pthread_create -pthread; then
3772 add_cflags -pthread
3773 add_extralibs -pthread
3774 elif check_func pthread_create -pthreads; then
3775 add_cflags -pthreads
3776 add_extralibs -pthreads
3777 elif check_func pthread_create -lpthreadGC2; then
3778 add_extralibs -lpthreadGC2
3779 elif ! check_lib pthread.h pthread_create -lpthread; then
3780 disable pthreads
3781 fi
3782 fi
3783
3784 for thread in $THREADS_LIST; do
3785 if enabled $thread; then
3786 test -n "$thread_type" &&
3787 die "ERROR: Only one thread type must be selected." ||
3788 thread_type="$thread"
3789 fi
3790 done
3791
3792 enabled sync_val_compare_and_swap && enable atomics_gcc
3793 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3794 enabled MemoryBarrier && enable atomics_win32
3795
3796 check_lib math.h sin -lm && LIBM="-lm"
3797 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3798
3799 atan2f_args=2
3800 ldexpf_args=2
3801 powf_args=2
3802
3803 for func in $MATH_FUNCS; do
3804 eval check_mathfunc $func \${${func}_args:-1}
3805 done
3806
3807 # these are off by default, so fail if requested and not available
3808 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3809 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3810 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3811 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3812 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3813 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3814 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3815 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3816 done || die "ERROR: libgsm not found"; }
3817 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3818 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3819 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3820 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3821 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3822 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3823 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3824 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3825 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3826 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3827 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3828 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3829 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3830 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3831 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3832 enabled libvpx && {
3833 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3834 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3835 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3836 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3837 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3838 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3839 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
3840 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3841 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3842 die "ERROR: libx264 version must be >= 0.118."; }
3843 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3844 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3845 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3846 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3847 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3848 die "ERROR: openssl not found"; }
3849
3850 if enabled gnutls; then
3851 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3852 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3853 fi
3854
3855 # libdc1394 check
3856 if enabled libdc1394; then
3857 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3858 enable libdc1394_2; } ||
3859 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3860 enable libdc1394_1; } ||
3861 die "ERROR: No version of libdc1394 found "
3862 fi
3863
3864 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3865 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3866 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3867 enable sdl
3868 fi
3869
3870 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3871
3872 check_header linux/fb.h
3873 check_header linux/videodev2.h
3874 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3875
3876 check_header sys/videoio.h
3877
3878 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3879 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3880 # w32api 3.12 had it defined wrong
3881 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3882
3883 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3884 { check_header dev/bktr/ioctl_meteor.h &&
3885 check_header dev/bktr/ioctl_bt848.h; } ||
3886 { check_header machine/ioctl_meteor.h &&
3887 check_header machine/ioctl_bt848.h; } ||
3888 { check_header dev/video/meteor/ioctl_meteor.h &&
3889 check_header dev/video/bktr/ioctl_bt848.h; } ||
3890 check_header dev/ic/bt8xx.h
3891
3892 check_header sndio.h
3893 check_header sys/soundcard.h
3894 check_header soundcard.h
3895
3896 enabled_any alsa_indev alsa_outdev &&
3897 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3898
3899 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3900 check_func jack_port_get_latency_range -ljack
3901
3902 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3903
3904 if enabled libcdio; then
3905 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
3906 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3907 fi
3908
3909 enabled x11grab &&
3910 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3911 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3912 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3913
3914 enabled vdpau &&
3915 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3916 disable vdpau
3917
3918 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3919
3920 # add some useful compiler flags if supported
3921 check_cflags -Wdeclaration-after-statement
3922 check_cflags -Wall
3923 check_cflags -Wdisabled-optimization
3924 check_cflags -Wpointer-arith
3925 check_cflags -Wredundant-decls
3926 check_cflags -Wcast-qual
3927 check_cflags -Wwrite-strings
3928 check_cflags -Wtype-limits
3929 check_cflags -Wundef
3930 check_cflags -Wmissing-prototypes
3931 check_cflags -Wstrict-prototypes
3932 enabled extra_warnings && check_cflags -Winline
3933
3934 check_disable_warning(){
3935 warning_flag=-W${1#-Wno-}
3936 test_cflags $warning_flag && add_cflags $1
3937 }
3938
3939 check_disable_warning -Wno-parentheses
3940 check_disable_warning -Wno-switch
3941 check_disable_warning -Wno-format-zero-length
3942 check_disable_warning -Wno-pointer-sign
3943
3944 # add some linker flags
3945 check_ldflags -Wl,--warn-common
3946 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3947 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3948
3949 enabled xmm_clobber_test &&
3950 check_ldflags -Wl,--wrap,avcodec_open2 \
3951 -Wl,--wrap,avcodec_decode_audio4 \
3952 -Wl,--wrap,avcodec_decode_video2 \
3953 -Wl,--wrap,avcodec_decode_subtitle2 \
3954 -Wl,--wrap,avcodec_encode_audio2 \
3955 -Wl,--wrap,avcodec_encode_video2 \
3956 -Wl,--wrap,avcodec_encode_subtitle \
3957 -Wl,--wrap,sws_scale ||
3958 disable xmm_clobber_test
3959
3960 echo "X{};" > $TMPV
3961 if test_ldflags -Wl,--version-script,$TMPV; then
3962 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3963 check_cc <<EOF && enable symver_asm_label
3964 void ff_foo(void) __asm__ ("av_foo@VERSION");
3965 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3966 EOF
3967 check_cc <<EOF && enable symver_gnu_asm
3968 __asm__(".symver ff_foo,av_foo@VERSION");
3969 void ff_foo(void) {}
3970 EOF
3971 fi
3972
3973 if [ -z "$optflags" ]; then
3974 if enabled small; then
3975 optflags=$cflags_size
3976 elif enabled optimizations; then
3977 optflags=$cflags_speed
3978 else
3979 optflags=$cflags_noopt
3980 fi
3981 fi
3982
3983 check_optflags(){
3984 check_cflags "$@"
3985 enabled lto && check_ldflags "$@"
3986 }
3987
3988
3989 if enabled lto; then
3990 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3991 check_cflags -flto
3992 check_ldflags -flto $cpuflags
3993 fi
3994
3995 check_optflags $optflags
3996 check_optflags -fno-math-errno
3997 check_optflags -fno-signed-zeros
3998
3999 if enabled icc; then
4000 # Just warnings, no remarks
4001 check_cflags -w1
4002 # -wd: Disable following warnings
4003 # 144, 167, 556: -Wno-pointer-sign
4004 # 1292: attribute "foo" ignored
4005 # 1419: external declaration in primary source file
4006 # 10006: ignoring unknown option -fno-signed-zeros
4007 # 10148: ignoring unknown option -Wno-parentheses
4008 # 10156: ignoring option '-W'; no argument required
4009 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4010 # 11030: Warning unknown option --as-needed
4011 # 10156: ignoring option '-export'; no argument required
4012 check_ldflags -wd10156,11030
4013 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4014 enable ebp_available
4015 if enabled x86_32; then
4016 icc_version=$($cc -dumpversion)
4017 test ${icc_version%%.*} -ge 11 &&
4018 check_cflags -falign-stack=maintain-16-byte ||
4019 disable aligned_stack
4020 fi
4021 elif enabled ccc; then
4022 # disable some annoying warnings
4023 add_cflags -msg_disable bitnotint
4024 add_cflags -msg_disable mixfuncvoid
4025 add_cflags -msg_disable nonstandcast
4026 add_cflags -msg_disable unsupieee
4027 elif enabled gcc; then
4028 check_optflags -fno-tree-vectorize
4029 check_cflags -Werror=implicit-function-declaration
4030 check_cflags -Werror=missing-prototypes
4031 check_cflags -Werror=return-type
4032 check_cflags -Werror=declaration-after-statement
4033 check_cflags -Werror=vla
4034 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4035 elif enabled llvm_gcc; then
4036 check_cflags -mllvm -stack-alignment=16
4037 elif enabled clang; then
4038 check_cflags -mllvm -stack-alignment=16
4039 check_cflags -Qunused-arguments
4040 check_cflags -Werror=implicit-function-declaration
4041 check_cflags -Werror=missing-prototypes
4042 check_cflags -Werror=return-type
4043 elif enabled cparser; then
4044 add_cflags -Wno-missing-variable-declarations
4045 add_cflags -Wno-empty-statement
4046 elif enabled armcc; then
4047 # 2523: use of inline assembler is deprecated
4048 add_cflags -W${armcc_opt},--diag_suppress=2523
4049 add_cflags -W${armcc_opt},--diag_suppress=1207
4050 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4051 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4052 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4053 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4054 elif enabled tms470; then
4055 add_cflags -pds=824 -pds=837
4056 elif enabled pathscale; then
4057 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4058 elif enabled_any msvc icl; then
4059 enabled x86_32 && disable aligned_stack
4060 enabled_all x86_32 debug && add_cflags -Oy-
4061 enabled debug && add_ldflags -debug
4062 enable pragma_deprecated
4063 if enabled icl; then
4064 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4065 # (correctly) on icl 13.x.
4066 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4067 add_cflags -Qansi-alias
4068 # icl will pass the inline asm tests but inline asm is currently
4069 # not supported (build will fail)
4070 disable inline_asm
4071 fi
4072 fi
4073
4074 case $target_os in
4075 osf1)
4076 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4077 ;;
4078 plan9)
4079 add_cppflags -Dmain=plan9_main
4080 ;;
4081 esac
4082
4083 enabled_any $THREADS_LIST && enable threads
4084 enabled_any $ATOMICS_LIST && enable atomics_native
4085
4086 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4087
4088 check_deps $CONFIG_LIST \
4089 $CONFIG_EXTRA \
4090 $HAVE_LIST \
4091 $ALL_COMPONENTS \
4092
4093 ! enabled_any memalign posix_memalign aligned_malloc &&
4094 enabled_any $need_memalign && enable memalign_hack
4095
4096 echo "install prefix $prefix"
4097 echo "source path $source_path"
4098 echo "C compiler $cc"
4099 echo "ARCH $arch ($cpu)"
4100 if test "$build_suffix" != ""; then
4101 echo "build suffix $build_suffix"
4102 fi
4103 if test "$extra_version" != ""; then
4104 echo "version string suffix $extra_version"
4105 fi
4106 echo "big-endian ${bigendian-no}"
4107 echo "runtime cpu detection ${runtime_cpudetect-no}"
4108 if enabled x86; then
4109 echo "${yasmexe} ${yasm-no}"
4110 echo "MMX enabled ${mmx-no}"
4111 echo "MMXEXT enabled ${mmxext-no}"
4112 echo "3DNow! enabled ${amd3dnow-no}"
4113 echo "3DNow! extended enabled ${amd3dnowext-no}"
4114 echo "SSE enabled ${sse-no}"
4115 echo "SSSE3 enabled ${ssse3-no}"
4116 echo "AVX enabled ${avx-no}"
4117 echo "FMA4 enabled ${fma4-no}"
4118 echo "i686 features enabled ${i686-no}"
4119 echo "CMOV is fast ${fast_cmov-no}"
4120 echo "EBX available ${ebx_available-no}"
4121 echo "EBP available ${ebp_available-no}"
4122 fi
4123 if enabled arm; then
4124 echo "ARMv5TE enabled ${armv5te-no}"
4125 echo "ARMv6 enabled ${armv6-no}"
4126 echo "ARMv6T2 enabled ${armv6t2-no}"
4127 echo "VFP enabled ${vfp-no}"
4128 echo "NEON enabled ${neon-no}"
4129 fi
4130 if enabled ppc; then
4131 echo "AltiVec enabled ${altivec-no}"
4132 echo "PPC 4xx optimizations ${ppc4xx-no}"
4133 echo "dcbzl available ${dcbzl-no}"
4134 fi
4135 if enabled sparc; then
4136 echo "VIS enabled ${vis-no}"
4137 fi
4138 echo "debug symbols ${debug-no}"
4139 echo "optimize for size ${small-no}"
4140 echo "optimizations ${optimizations-no}"
4141 echo "static ${static-no}"
4142 echo "shared ${shared-no}"
4143 echo "new filter support ${avfilter-no}"
4144 echo "network support ${network-no}"
4145 echo "threading support ${thread_type-no}"
4146 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4147 echo "SDL support ${sdl-no}"
4148 test -n "$random_seed" &&
4149 echo "random seed ${random_seed}"
4150 echo
4151
4152 echo "External libraries:"
4153 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4154 echo
4155
4156 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4157 echo "Enabled ${type}s:"
4158 eval list=\$$(toupper $type)_LIST
4159 print_enabled '_*' $list | print_3_columns
4160 echo
4161 done
4162
4163 license="LGPL version 2.1 or later"
4164 if enabled nonfree; then
4165 license="nonfree and unredistributable"
4166 elif enabled gplv3; then
4167 license="GPL version 3 or later"
4168 elif enabled lgplv3; then
4169 license="LGPL version 3 or later"
4170 elif enabled gpl; then
4171 license="GPL version 2 or later"
4172 fi
4173
4174 echo "License: $license"
4175
4176 echo "Creating config.mak and config.h..."
4177
4178 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4179
4180 config_files="$TMPH config.mak"
4181
4182 cat > config.mak <<EOF
4183 # Automatically generated by configure - do not modify!
4184 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4185 prefix=$prefix
4186 LIBDIR=\$(DESTDIR)$libdir
4187 SHLIBDIR=\$(DESTDIR)$shlibdir
4188 INCDIR=\$(DESTDIR)$incdir
4189 BINDIR=\$(DESTDIR)$bindir
4190 DATADIR=\$(DESTDIR)$datadir
4191 DOCDIR=\$(DESTDIR)$docdir
4192 MANDIR=\$(DESTDIR)$mandir
4193 SRC_PATH=$source_path
4194 CC_IDENT=$cc_ident
4195 ARCH=$arch
4196 CC=$cc
4197 AS=$as
4198 LD=$ld
4199 DEPCC=$dep_cc
4200 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4201 DEPAS=$as
4202 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4203 YASM=$yasmexe
4204 DEPYASM=$yasmexe
4205 AR=$ar
4206 ARFLAGS=$arflags
4207 AR_O=$ar_o
4208 RANLIB=$ranlib
4209 STRIP=$strip
4210 LN_S=$ln_s
4211 CPPFLAGS=$CPPFLAGS
4212 CFLAGS=$CFLAGS
4213 ASFLAGS=$ASFLAGS
4214 AS_C=$AS_C
4215 AS_O=$AS_O
4216 CC_C=$CC_C
4217 CC_E=$CC_E
4218 CC_O=$CC_O
4219 LD_O=$LD_O
4220 LD_LIB=$LD_LIB
4221 LD_PATH=$LD_PATH
4222 DLLTOOL=$dlltool
4223 LDFLAGS=$LDFLAGS
4224 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4225 YASMFLAGS=$YASMFLAGS
4226 BUILDSUF=$build_suffix
4227 FULLNAME=$FULLNAME
4228 LIBPREF=$LIBPREF
4229 LIBSUF=$LIBSUF
4230 LIBNAME=$LIBNAME
4231 SLIBPREF=$SLIBPREF
4232 SLIBSUF=$SLIBSUF
4233 EXESUF=$EXESUF
4234 EXTRA_VERSION=$extra_version
4235 CCDEP=$CCDEP
4236 CCDEP_FLAGS=$CCDEP_FLAGS
4237 ASDEP=$ASDEP
4238 ASDEP_FLAGS=$ASDEP_FLAGS
4239 CC_DEPFLAGS=$CC_DEPFLAGS
4240 AS_DEPFLAGS=$AS_DEPFLAGS
4241 HOSTCC=$host_cc
4242 HOSTLD=$host_ld
4243 HOSTCFLAGS=$host_cflags
4244 HOSTCPPFLAGS=$host_cppflags
4245 HOSTEXESUF=$HOSTEXESUF
4246 HOSTLDFLAGS=$host_ldflags
4247 HOSTLIBS=$host_libs
4248 DEPHOSTCC=$host_cc
4249 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4250 HOSTCCDEP=$HOSTCCDEP
4251 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4252 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4253 HOSTCC_C=$HOSTCC_C
4254 HOSTCC_O=$HOSTCC_O
4255 HOSTLD_O=$HOSTLD_O
4256 TARGET_EXEC=$target_exec $target_exec_args
4257 TARGET_PATH=$target_path
4258 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4259 LIBS-avplay=$sdl_libs
4260 CFLAGS-avplay=$sdl_cflags
4261 ZLIB=$($ldflags_filter -lz)
4262 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4263 EXTRALIBS=$extralibs
4264 COMPAT_OBJS=$compat_objs
4265 EXEOBJS=$exeobjs
4266 INSTALL=install
4267 LIBTARGET=${LIBTARGET}
4268 SLIBNAME=${SLIBNAME}
4269 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4270 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4271 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4272 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4273 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4274 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4275 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4276 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4277 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4278 EOF
4279
4280 get_version(){
4281 lcname=lib${1}
4282 name=$(toupper $lcname)
4283 file=$source_path/$lcname/version.h
4284 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4285 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4286 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4287 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4288 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4289 }
4290
4291 map 'get_version $v' $LIBRARY_LIST
4292
4293 cat > $TMPH <<EOF
4294 /* Automatically generated by configure - do not modify! */
4295 #ifndef LIBAV_CONFIG_H
4296 #define LIBAV_CONFIG_H
4297 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4298 #define LIBAV_LICENSE "$(c_escape $license)"
4299 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4300 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4301 #define restrict $_restrict
4302 #define EXTERN_PREFIX "${extern_prefix}"
4303 #define EXTERN_ASM ${extern_prefix}
4304 #define SLIBSUF "$SLIBSUF"
4305 EOF
4306
4307 test -n "$malloc_prefix" &&
4308 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4309
4310 if enabled yasm; then
4311 append config_files $TMPASM
4312 printf '' >$TMPASM
4313 fi
4314
4315 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4316
4317 print_config ARCH_ "$config_files" $ARCH_LIST
4318 print_config HAVE_ "$config_files" $HAVE_LIST
4319 print_config CONFIG_ "$config_files" $CONFIG_LIST \
4320 $CONFIG_EXTRA \
4321 $ALL_COMPONENTS \
4322
4323 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4324
4325 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4326 cp_if_changed $TMPH config.h
4327 touch .config
4328
4329 enabled yasm && cp_if_changed $TMPASM config.asm
4330
4331 cat > $TMPH <<EOF
4332 /* Generated by ffconf */
4333 #ifndef AVUTIL_AVCONFIG_H
4334 #define AVUTIL_AVCONFIG_H
4335 EOF
4336
4337 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4338
4339 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4340
4341 cp_if_changed $TMPH libavutil/avconfig.h
4342
4343 test -n "$WARNINGS" && printf "\n$WARNINGS"
4344
4345 # build pkg-config files
4346
4347 pkgconfig_generate(){
4348 name=$1
4349 shortname=${name#lib}${build_suffix}
4350 comment=$2
4351 version=$3
4352 libs=$4
4353 requires=$5
4354 enabled ${name#lib} || return 0
4355 mkdir -p $name