55d054a8a407326b37a7074f825399a46874e73b
[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, but we still need to use
2286 # c99wrap for passing command line parameters with a space (for
2287 # avoiding msys path mangling/conversion issues). Default to the new
2288 # behaviour if the regexp was unable to match anything, since this
2289 # successfully parses the version number of existing supported
2290 # versions that require the converter (MSVC 2010 and 2012).
2291 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2292 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2293 cc_default="c99wrap -noconv cl"
2294 else
2295 cc_default="c99wrap cl"
2296 fi
2297 ld_default="c99wrap link"
2298 nm_default="dumpbin -symbols"
2299 ar_default="lib"
2300 target_os_default="win32"
2301 ;;
2302 icl)
2303 cc_default="c99wrap -noconv icl"
2304 ld_default="c99wrap xilink"
2305 nm_default="dumpbin -symbols"
2306 ar_default="xilib"
2307 target_os_default="win32"
2308 ;;
2309 gcov)
2310 add_cflags -fprofile-arcs -ftest-coverage
2311 add_ldflags -fprofile-arcs -ftest-coverage
2312 ;;
2313 hardened)
2314 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2315 add_ldflags -Wl,-z,relro -Wl,-z,now
2316 ;;
2317 ?*)
2318 die "Unknown toolchain $toolchain"
2319 ;;
2320 esac
2321
2322 set_default arch cc pkg_config sysinclude target_exec target_os
2323 enabled cross_compile || host_cc_default=$cc
2324 set_default host_cc
2325
2326 if ! $pkg_config --version >/dev/null 2>&1; then
2327 warn "$pkg_config not found, library detection may fail."
2328 pkg_config=false
2329 fi
2330
2331 exesuf() {
2332 case $1 in
2333 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2334 esac
2335 }
2336
2337 EXESUF=$(exesuf $target_os)
2338 HOSTEXESUF=$(exesuf $host_os)
2339
2340 # set temporary file name
2341 : ${TMPDIR:=$TEMPDIR}
2342 : ${TMPDIR:=$TMP}
2343 : ${TMPDIR:=/tmp}
2344
2345 if ! check_cmd mktemp -u XXXXXX; then
2346 # simple replacement for missing mktemp
2347 # NOT SAFE FOR GENERAL USE
2348 mktemp(){
2349 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2350 }
2351 fi
2352
2353 tmpfile(){
2354 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2355 (set -C; exec > $tmp) 2>/dev/null ||
2356 die "Unable to create temporary file in $TMPDIR."
2357 append TMPFILES $tmp
2358 eval $1=$tmp
2359 }
2360
2361 trap 'rm -f -- $TMPFILES' EXIT
2362
2363 tmpfile TMPASM .asm
2364 tmpfile TMPC .c
2365 tmpfile TMPE $EXESUF
2366 tmpfile TMPH .h
2367 tmpfile TMPO .o
2368 tmpfile TMPS .S
2369 tmpfile TMPSH .sh
2370 tmpfile TMPV .ver
2371
2372 unset -f mktemp
2373
2374 chmod +x $TMPE
2375
2376 # make sure we can execute files in $TMPDIR
2377 cat > $TMPSH 2>> $logfile <<EOF
2378 #! /bin/sh
2379 EOF
2380 chmod +x $TMPSH >> $logfile 2>&1
2381 if ! $TMPSH >> $logfile 2>&1; then
2382 cat <<EOF
2383 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2384 variable to another directory and make sure that it is not mounted noexec.
2385 EOF
2386 die "Sanity test failed."
2387 fi
2388
2389 ccc_flags(){
2390 for flag; do
2391 case $flag in
2392 -std=c99) echo -c99 ;;
2393 -mcpu=*) echo -arch ${flag#*=} ;;
2394 -mieee) echo -ieee ;;
2395 -O*|-fast) echo $flag ;;
2396 -fno-math-errno) echo -assume nomath_errno ;;
2397 -g) echo -g3 ;;
2398 -Wall) echo -msg_enable level2 ;;
2399 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2400 -Wl,*) echo $flag ;;
2401 -f*|-W*) ;;
2402 *) echo $flag ;;
2403 esac
2404 done
2405 }
2406
2407 cparser_flags(){
2408 for flag; do
2409 case $flag in
2410 -Wno-switch) echo -Wno-switch-enum ;;
2411 -Wno-format-zero-length) ;;
2412 -Wdisabled-optimization) ;;
2413 -Wno-pointer-sign) echo -Wno-other ;;
2414 *) echo $flag ;;
2415 esac
2416 done
2417 }
2418
2419 msvc_common_flags(){
2420 for flag; do
2421 case $flag in
2422 # In addition to specifying certain flags under the compiler
2423 # specific filters, they must be specified here as well or else the
2424 # generic catch all at the bottom will print the original flag.
2425 -Wall) ;;
2426 -std=c99) ;;
2427 # Common flags
2428 -fomit-frame-pointer) ;;
2429 -g) echo -Z7 ;;
2430 -fno-math-errno) ;;
2431 -fno-common) ;;
2432 -fno-signed-zeros) ;;
2433 -fPIC) ;;
2434 -mthumb) ;;
2435 -march=*) ;;
2436 -lz) echo zlib.lib ;;
2437 -lavifil32) echo vfw32.lib ;;
2438 -lavicap32) echo vfw32.lib user32.lib ;;
2439 -l*) echo ${flag#-l}.lib ;;
2440 *) echo $flag ;;
2441 esac
2442 done
2443 }
2444
2445 msvc_flags(){
2446 msvc_common_flags "$@"
2447 for flag; do
2448 case $flag in
2449 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2450 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2451 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2452 -wd4273 ;;
2453 esac
2454 done
2455 }
2456
2457 icl_flags(){
2458 msvc_common_flags "$@"
2459 for flag; do
2460 case $flag in
2461 # Despite what Intel's documentation says -Wall, which is supported
2462 # on Windows, does enable remarks so disable them here.
2463 -Wall) echo $flag -Qdiag-disable:remark ;;
2464 -std=c99) echo -Qstd=c99 ;;
2465 esac
2466 done
2467 }
2468
2469 pgi_flags(){
2470 for flag; do
2471 case $flag in
2472 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2473 -fomit-frame-pointer) echo -Mnoframe ;;
2474 -g) echo -gopt ;;
2475 *) echo $flag ;;
2476 esac
2477 done
2478 }
2479
2480 suncc_flags(){
2481 for flag; do
2482 case $flag in
2483 -march=*|-mcpu=*)
2484 case "${flag#*=}" in
2485 native) echo -xtarget=native ;;
2486 v9|niagara) echo -xarch=sparc ;;
2487 ultrasparc) echo -xarch=sparcvis ;;
2488 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2489 i586|pentium) echo -xchip=pentium ;;
2490 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2491 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2492 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2493 pentium4*) echo -xtarget=pentium4 ;;
2494 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2495 *-sse3) echo -xarch=sse3 ;;
2496 core2) echo -xarch=ssse3 -xchip=core2 ;;
2497 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2498 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2499 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2500 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2501 k8|opteron|athlon64|athlon-fx)
2502 echo -xarch=sse2a ;;
2503 athlon*) echo -xarch=pentium_proa ;;
2504 esac
2505 ;;
2506 -std=c99) echo -xc99 ;;
2507 -fomit-frame-pointer) echo -xregs=frameptr ;;
2508 -fPIC) echo -KPIC -xcode=pic32 ;;
2509 -W*,*) echo $flag ;;
2510 -f*-*|-W*|-mimpure-text) ;;
2511 -shared) echo -G ;;
2512 *) echo $flag ;;
2513 esac
2514 done
2515 }
2516
2517 tms470_flags(){
2518 for flag; do
2519 case $flag in
2520 -march=*|-mcpu=*)
2521 case "${flag#*=}" in
2522 armv7-a|cortex-a*) echo -mv=7a8 ;;
2523 armv7-r|cortex-r*) echo -mv=7r4 ;;
2524 armv7-m|cortex-m*) echo -mv=7m3 ;;
2525 armv6*|arm11*) echo -mv=6 ;;
2526 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2527 echo -mv=5e ;;
2528 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2529 esac
2530 ;;
2531 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2532 -mfpu=vfp) echo --float_support=vfpv2 ;;
2533 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2534 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2535 -msoft-float) echo --float_support=vfplib ;;
2536 -O[0-3]|-mf=*) echo $flag ;;
2537 -g) echo -g -mn ;;
2538 -pds=*) echo $flag ;;
2539 -D*|-I*) echo $flag ;;
2540 --gcc|--abi=*) echo $flag ;;
2541 -me) echo $flag ;;
2542 esac
2543 done
2544 }
2545
2546 probe_cc(){
2547 pfx=$1
2548 _cc=$2
2549
2550 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2551 unset _ld_o _ldflags _ld_lib _ld_path
2552 unset _depflags _DEPCMD _DEPFLAGS
2553 _flags_filter=echo
2554
2555 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2556 _type=llvm_gcc
2557 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2558 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2559 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2560 _cflags_speed='-O3'
2561 _cflags_size='-Os'
2562 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2563 _type=gcc
2564 gcc_version=$($_cc --version | head -n1)
2565 gcc_basever=$($_cc -dumpversion)
2566 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2567 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2568 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2569 if ! $_cc -dumpversion | grep -q '^2\.'; then
2570 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2571 fi
2572 _cflags_speed='-O3'
2573 _cflags_size='-Os'
2574 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2575 _type=icc
2576 _ident=$($_cc --version | head -n1)
2577 _depflags='-MMD'
2578 _cflags_speed='-O3'
2579 _cflags_size='-Os'
2580 _cflags_noopt='-O1'
2581 elif $_cc -v 2>&1 | grep -q xlc; then
2582 _type=xlc
2583 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2584 _cflags_speed='-O5'
2585 _cflags_size='-O5 -qcompact'
2586 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2587 _type=ccc
2588 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2589 _DEPFLAGS='-M'
2590 _cflags_speed='-fast'
2591 _cflags_size='-O1'
2592 _flags_filter=ccc_flags
2593 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2594 test -d "$sysroot" || die "No valid sysroot specified."
2595 _type=armcc
2596 _ident=$($_cc --vsn | head -n1)
2597 armcc_conf="$PWD/armcc.conf"
2598 $_cc --arm_linux_configure \
2599 --arm_linux_config_file="$armcc_conf" \
2600 --configure_sysroot="$sysroot" \
2601 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2602 die "Error creating armcc configuration file."
2603 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2604 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2605 as_default="${cross_prefix}gcc"
2606 _depflags='-MMD'
2607 _cflags_speed='-O3'
2608 _cflags_size='-Os'
2609 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2610 _type=tms470
2611 _ident=$($_cc -version | head -n1 | tr -s ' ')
2612 _flags='--gcc --abi=eabi -me'
2613 _cc_e='-ppl -fe=$@'
2614 _cc_o='-fe=$@'
2615 _depflags='-ppa -ppd=$(@:.o=.d)'
2616 _cflags_speed='-O3 -mf=5'
2617 _cflags_size='-O3 -mf=2'
2618 _flags_filter=tms470_flags
2619 elif $_cc -v 2>&1 | grep -q clang; then
2620 _type=clang
2621 _ident=$($_cc --version | head -n1)
2622 _depflags='-MMD'
2623 _cflags_speed='-O3'
2624 _cflags_size='-Os'
2625 elif $_cc -V 2>&1 | grep -q Sun; then
2626 _type=suncc
2627 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2628 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2629 _DEPFLAGS='-xM1 -xc99'
2630 _ldflags='-std=c99'
2631 _cflags_speed='-O5'
2632 _cflags_size='-O5 -xspace'
2633 _flags_filter=suncc_flags
2634 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2635 _type=pathscale
2636 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2637 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2638 _cflags_speed='-O2'
2639 _cflags_size='-Os'
2640 _flags_filter='filter_out -Wdisabled-optimization'
2641 elif $_cc -v 2>&1 | grep -q Open64; then
2642 _type=open64
2643 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2644 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2645 _cflags_speed='-O2'
2646 _cflags_size='-Os'
2647 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2648 elif $_cc -V 2>&1 | grep -q Portland; then
2649 _type=pgi
2650 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2651 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2652 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2653 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2654 _cflags_noopt="-O1"
2655 _flags_filter=pgi_flags
2656 elif $_cc 2>&1 | grep -q Microsoft; then
2657 _type=msvc
2658 _ident=$($cc 2>&1 | head -n1)
2659 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2660 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2661 _cflags_speed="-O2"
2662 _cflags_size="-O1"
2663 # Nonstandard output options, to avoid msys path conversion issues.
2664 # Relies on wrapper to remap it.
2665 if $_cc 2>&1 | grep -q Linker; then
2666 _ld_o='-out $@'
2667 else
2668 _ld_o='-Fe$@'
2669 fi
2670 _cc_o='-Fo $@'
2671 _cc_e='-P -Fi $@'
2672 _flags_filter=msvc_flags
2673 _ld_lib='lib%.a'
2674 _ld_path='-libpath:'
2675 _flags='-nologo'
2676 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2677 if [ $pfx = hostcc ]; then
2678 append _cflags -Dsnprintf=_snprintf
2679 fi
2680 elif $_cc 2>&1 | grep -q Intel; then
2681 _type=icl
2682 _ident=$($cc 2>&1 | head -n1)
2683 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2684 # Not only is O3 broken on 13.x+ but it is slower on all previous
2685 # versions (tested) as well.
2686 _cflags_speed="-O2"
2687 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2688 # Nonstandard output options, to avoid msys path conversion issues.
2689 # Relies on wrapper to remap it.
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,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3219 objformat="win32"
3220 dlltool="${cross_prefix}dlltool"
3221 ranlib=:
3222 enable dos_paths
3223 ;;
3224 win32|win64)
3225 if enabled shared; then
3226 # Link to the import library instead of the normal static library
3227 # for shared libs.
3228 LD_LIB='%.lib'
3229 # Cannot build both shared and static libs with MSVC or icl.
3230 disable static
3231 fi
3232 shlibdir_default="$bindir_default"
3233 SLIBPREF=""
3234 SLIBSUF=".dll"
3235 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3236 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3237 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3238 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3239 SLIB_INSTALL_LINKS=
3240 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3241 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3242 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3243 objformat="win32"
3244 ranlib=:
3245 enable dos_paths
3246 ;;
3247 cygwin*)
3248 target_os=cygwin
3249 shlibdir_default="$bindir_default"
3250 SLIBPREF="cyg"
3251 SLIBSUF=".dll"
3252 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3253 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3254 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3255 SLIB_INSTALL_LINKS=
3256 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3257 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3258 objformat="win32"
3259 enable dos_paths
3260 ;;
3261 *-dos|freedos|opendos)
3262 network_extralibs="-lsocket"
3263 objformat="coff"
3264 enable dos_paths
3265 add_cppflags -U__STRICT_ANSI__
3266 ;;
3267 linux)
3268 enable dv1394
3269 ;;
3270 irix*)
3271 target_os=irix
3272 ranlib="echo ignoring ranlib"
3273 ;;
3274 os/2*)
3275 ln_s="cp -f"
3276 objformat="aout"
3277 add_cppflags -D_GNU_SOURCE
3278 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3279 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3280 LIBSUF="_s.a"
3281 SLIBPREF=""
3282 SLIBSUF=".dll"
3283 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3284 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3285 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3286 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3287 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3288 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3289 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3290 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3291 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3292 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3293 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3294 enable dos_paths
3295 ;;
3296 gnu/kfreebsd)
3297 add_cppflags -D_BSD_SOURCE
3298 ;;
3299 gnu)
3300 ;;
3301 qnx)
3302 add_cppflags -D_QNX_SOURCE
3303 network_extralibs="-lsocket"
3304 ;;
3305 symbian)
3306 SLIBSUF=".dll"
3307 enable dos_paths
3308 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3309 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3310 add_ldflags -Wl,--target1-abs,--no-undefined \
3311 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3312 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3313 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3314 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3315 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3316 ;;
3317 osf1)
3318 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3319 ;;
3320 minix)
3321 ;;
3322 plan9)
3323 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3324 -D_REENTRANT_SOURCE \
3325 -D_RESEARCH_SOURCE \
3326 -DFD_SETSIZE=96 \
3327 -DHAVE_SOCK_OPTS
3328 add_compat strtod.o strtod=avpriv_strtod
3329 network_extralibs='-lbsd'
3330 exeobjs=compat/plan9/main.o
3331 disable avserver
3332 cp_f='cp'
3333 ;;
3334 none)
3335 ;;
3336 *)
3337 die "Unknown OS '$target_os'."
3338 ;;
3339 esac
3340
3341 # determine libc flavour
3342
3343 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3344 if check_cpp_condition features.h "defined __UCLIBC__"; then
3345 libc_type=uclibc
3346 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3347 elif check_cpp_condition features.h "defined __GLIBC__"; then
3348 libc_type=glibc
3349 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3350 # MinGW headers can be installed on Cygwin, so check for newlib first.
3351 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3352 libc_type=newlib
3353 add_cppflags -U__STRICT_ANSI__
3354 elif check_header _mingw.h; then
3355 libc_type=mingw
3356 check_cpp_condition _mingw.h \
3357 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3358 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3359 die "ERROR: MinGW runtime version must be >= 3.15."
3360 add_cppflags -U__STRICT_ANSI__
3361 elif check_func_headers stdlib.h _get_doserrno; then
3362 libc_type=msvcrt
3363 add_compat strtod.o strtod=avpriv_strtod
3364 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3365 _snprintf=avpriv_snprintf \
3366 vsnprintf=avpriv_vsnprintf
3367 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3368 # 0x601 by default unless something else is set by the user.
3369 # This can easily lead to us detecting functions only present
3370 # in such new versions and producing binaries requiring windows 7.0.
3371 # Therefore explicitly set the default to XP unless the user has
3372 # set something else on the command line.
3373 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3374 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3375 libc_type=klibc
3376 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3377 libc_type=bionic
3378 add_compat strtod.o strtod=avpriv_strtod
3379 fi
3380
3381 test -n "$libc_type" && enable $libc_type
3382
3383 # hacks for compiler/libc/os combinations
3384
3385 if enabled_all tms470 glibc; then
3386 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3387 add_cppflags -D__USER_LABEL_PREFIX__=
3388 add_cppflags -D__builtin_memset=memset
3389 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3390 add_cflags -pds=48 # incompatible redefinition of macro
3391 fi
3392
3393 if enabled_all ccc glibc; then
3394 add_ldflags -Wl,-z,now # calls to libots crash without this
3395 fi
3396
3397 esc(){
3398 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3399 }
3400
3401 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3402
3403 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3404
3405 set_default $PATHS_LIST
3406 set_default nm
3407
3408 # we need to build at least one lib type
3409 if ! enabled_any static shared; then
3410 cat <<EOF
3411 At least one library type must be built.
3412 Specify --enable-static to build the static libraries or --enable-shared to
3413 build the shared libraries as well. To only build the shared libraries specify
3414 --disable-static in addition to --enable-shared.
3415 EOF
3416 exit 1;
3417 fi
3418
3419 die_license_disabled() {
3420 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3421 }
3422
3423 die_license_disabled gpl libcdio
3424 die_license_disabled gpl libx264
3425 die_license_disabled gpl libxavs
3426 die_license_disabled gpl libxvid
3427 die_license_disabled gpl x11grab
3428
3429 die_license_disabled nonfree libfaac
3430 die_license_disabled nonfree libfdk_aac
3431 die_license_disabled nonfree openssl
3432
3433 die_license_disabled version3 libopencore_amrnb
3434 die_license_disabled version3 libopencore_amrwb
3435 die_license_disabled version3 libvo_aacenc
3436 die_license_disabled version3 libvo_amrwbenc
3437
3438 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3439
3440 disabled optimizations || check_cflags -fomit-frame-pointer
3441
3442 enable_weak_pic() {
3443 disabled pic && return
3444 enable pic
3445 add_cppflags -DPIC
3446 case "$target_os" in
3447 mingw*|cygwin*)
3448 ;;
3449 *)
3450 add_cflags -fPIC
3451 ;;
3452 esac
3453 add_asflags -fPIC
3454 }
3455
3456 enabled pic && enable_weak_pic
3457
3458 check_cc <<EOF || die "Symbol mangling check failed."
3459 int ff_extern;
3460 EOF
3461 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3462 extern_prefix=${sym%%ff_extern*}
3463
3464 check_cc <<EOF && enable_weak inline_asm
3465 void foo(void) { __asm__ volatile ("" ::); }
3466 EOF
3467
3468 _restrict=
3469 for restrict_keyword in restrict __restrict__ __restrict; do
3470 check_cc <<EOF && _restrict=$restrict_keyword && break
3471 void foo(char * $restrict_keyword p);
3472 EOF
3473 done
3474
3475 check_cc <<EOF && enable pragma_deprecated
3476 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3477 EOF
3478
3479 check_cc <<EOF && enable attribute_packed
3480 struct { int x; } __attribute__((packed)) x;
3481 EOF
3482
3483 check_cc <<EOF && enable attribute_may_alias
3484 union { int x; } __attribute__((may_alias)) x;
3485 EOF
3486
3487 check_cc <<EOF || die "endian test failed"
3488 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3489 EOF
3490 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3491
3492 check_inline_asm inline_asm_labels '"1:\n"'
3493
3494 if enabled alpha; then
3495
3496 check_cflags -mieee
3497
3498 elif enabled arm; then
3499
3500 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3501 enabled thumb && check_cflags -mthumb || check_cflags -marm
3502 nogas=die
3503
3504 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3505 enable vfp_args
3506 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3507 case "${cross_prefix:-$cc}" in
3508 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3509 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3510 __asm__ (".eabi_attribute 28, 1");
3511 int main(void) { return 0; }
3512 EOF
3513 esac
3514 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3515 fi
3516
3517 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3518 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3519 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3520 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3521 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3522 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3523
3524 [ $target_os = linux ] ||
3525 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3526 $ARCH_EXT_LIST_ARM
3527
3528 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3529 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3530
3531 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3532
3533 elif enabled mips; then
3534
3535 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3536
3537 elif enabled parisc; then
3538
3539 if enabled gcc; then
3540 case $($cc -dumpversion) in
3541 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3542 esac
3543 fi
3544
3545 elif enabled ppc; then
3546
3547 enable local_aligned_8 local_aligned_16
3548
3549 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3550 check_inline_asm ibm_asm '"add 0, 0, 0"'
3551 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3552 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3553
3554 # AltiVec flags: The FSF version of GCC differs from the Apple version
3555 if enabled altivec; then
3556 nogas=warn
3557 check_cflags -maltivec -mabi=altivec &&
3558 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3559 check_cflags -faltivec
3560
3561 # check if our compiler supports Motorola AltiVec C API
3562 check_cc <<EOF || disable altivec
3563 $inc_altivec_h
3564 int main(void) {
3565 vector signed int v1 = (vector signed int) { 0 };
3566 vector signed int v2 = (vector signed int) { 1 };
3567 v1 = vec_add(v1, v2);
3568 return 0;
3569 }
3570 EOF
3571
3572 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3573 fi
3574
3575 elif enabled sparc; then
3576
3577 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3578
3579 elif enabled x86; then
3580
3581 check_builtin rdtsc intrin.h "__rdtsc()"
3582 check_builtin mm_empty mmintrin.h "_mm_empty()"
3583
3584 enable local_aligned_8 local_aligned_16
3585
3586 # check whether EBP is available on x86
3587 # As 'i' is stored on the stack, this program will crash
3588 # if the base pointer is used to access it because the
3589 # base pointer is cleared in the inline assembly code.
3590 check_exec_crash <<EOF && enable ebp_available
3591 volatile int i=0;
3592 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3593 return i;
3594 EOF
3595
3596 # check whether EBX is available on x86
3597 check_inline_asm ebx_available '""::"b"(0)' &&
3598 check_inline_asm ebx_available '"":::"%ebx"'
3599
3600 # check whether xmm clobbers are supported
3601 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3602
3603 # check whether binutils is new enough to compile SSSE3/MMXEXT
3604 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3605 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3606
3607 if ! disabled_any asm mmx yasm; then
3608 if check_cmd $yasmexe --version; then
3609 enabled x86_64 && yasm_extra="-m amd64"
3610 yasm_debug="-g dwarf2"
3611 elif check_cmd nasm -v; then
3612 yasmexe=nasm
3613 yasm_debug="-g -F dwarf"
3614 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3615 fi
3616
3617 YASMFLAGS="-f $objformat $yasm_extra"
3618 enabled pic && append YASMFLAGS "-DPIC"
3619 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3620 case "$objformat" in
3621 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3622 esac
3623
3624 check_yasm "movbe ecx, [5]" && enable yasm ||
3625 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3626 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3627 check_yasm "CPU amdnop" && enable cpunop
3628 fi
3629
3630 case "$cpu" in
3631 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3632 disable fast_clz
3633 ;;
3634 esac
3635
3636 fi
3637
3638 if enabled asm; then
3639 as=${gas:=$as}
3640 check_as <<EOF && enable gnu_as || \
3641 $nogas "GNU assembler not found, install gas-preprocessor"
3642 .macro m n
3643 \n: .int 0
3644 .endm
3645 m x
3646 EOF
3647 fi
3648
3649 check_ldflags -Wl,--as-needed
3650
3651 if check_func dlopen; then
3652 ldl=
3653 elif check_func dlopen -ldl; then
3654 ldl=-ldl
3655 fi
3656
3657 if ! disabled network; then
3658 check_type "sys/types.h sys/socket.h" socklen_t
3659 check_type netdb.h "struct addrinfo"
3660 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3661 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3662 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3663 check_type netinet/in.h "struct sockaddr_in6"
3664 check_type poll.h "struct pollfd"
3665 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3666 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3667 check_type netinet/sctp.h "struct sctp_event_subscribe"
3668 check_func getaddrinfo $network_extralibs
3669 check_func getservbyport $network_extralibs
3670 # Prefer arpa/inet.h over winsock2
3671 if check_header arpa/inet.h ; then
3672 check_func closesocket
3673 elif check_header winsock2.h ; then
3674 check_func_headers winsock2.h closesocket -lws2 &&
3675 network_extralibs="-lws2" ||
3676 { check_func_headers winsock2.h closesocket -lws2_32 &&
3677 network_extralibs="-lws2_32"; }
3678 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3679 check_type ws2tcpip.h socklen_t
3680 check_type ws2tcpip.h "struct addrinfo"
3681 check_type ws2tcpip.h "struct group_source_req"
3682 check_type ws2tcpip.h "struct ip_mreq_source"
3683 check_type ws2tcpip.h "struct ipv6_mreq"
3684 check_type winsock2.h "struct pollfd"
3685 check_type ws2tcpip.h "struct sockaddr_in6"
3686 check_type ws2tcpip.h "struct sockaddr_storage"
3687 check_struct winsock2.h "struct sockaddr" sa_len
3688 else
3689 disable network
3690 fi
3691 fi
3692
3693 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3694 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3695
3696 check_func fcntl
3697 check_func fork
3698 check_func_headers stdlib.h getenv
3699 check_func gethrtime
3700 check_func getopt
3701 check_func getrusage
3702 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3703 check_func gettimeofday