configure: Add docdir configuration option
[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 [$arch]
244 --cpu=CPU select the minimum required CPU (affects
245 instruction selection, may crash on older CPUs)
246 --enable-pic build position-independent code
247 --enable-sram allow use of on-chip SRAM
248 --enable-thumb compile for Thumb instruction set
249 --disable-symver disable symbol versioning
250 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251 --disable-safe-bitstream-reader
252 disable buffer boundary checking in bitreaders
253 (faster, but may crash)
254 --enable-memalign-hack emulate memalign, interferes with memory debuggers
255 --enable-lto use link-time optimization
256
257 Optimization options (experts only):
258 --disable-asm disable all assembler optimizations
259 --disable-altivec disable AltiVec optimizations
260 --disable-amd3dnow disable 3DNow! optimizations
261 --disable-amd3dnowext disable 3DNow! extended optimizations
262 --disable-mmx disable MMX optimizations
263 --disable-mmxext disable MMXEXT optimizations
264 --disable-sse disable SSE optimizations
265 --disable-sse2 disable SSE2 optimizations
266 --disable-sse3 disable SSE3 optimizations
267 --disable-ssse3 disable SSSE3 optimizations
268 --disable-sse4 disable SSE4 optimizations
269 --disable-sse42 disable SSE4.2 optimizations
270 --disable-avx disable AVX optimizations
271 --disable-fma4 disable FMA4 optimizations
272 --disable-armv5te disable armv5te optimizations
273 --disable-armv6 disable armv6 optimizations
274 --disable-armv6t2 disable armv6t2 optimizations
275 --disable-vfp disable VFP optimizations
276 --disable-neon disable NEON optimizations
277 --disable-vis disable VIS optimizations
278 --disable-inline-asm disable use of inline assembler
279 --disable-yasm disable use of yasm assembler
280
281 Developer options (useful when working on Libav itself):
282 --disable-debug disable debugging symbols
283 --enable-debug=LEVEL set the debug level [$debuglevel]
284 --disable-optimizations disable compiler optimizations
285 --enable-extra-warnings enable more compiler warnings
286 --samples=PATH location of test samples for FATE, if not set use
287 \$LIBAV_SAMPLES at make invocation time.
288 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
289 should be used only for debugging purposes)
290 --enable-random randomly enable/disable components
291 --disable-random
292 --enable-random=LIST randomly enable/disable specific components or
293 --disable-random=LIST component groups. LIST is a comma-separated list
294 of NAME[:PROB] entries where NAME is a component
295 (group) and PROB the probability associated with
296 NAME (default 0.5).
297 --random-seed=VALUE seed value for --enable/disable-random
298
299 NOTE: Object files are built at the place where configure is launched.
300 EOF
301 exit 0
302 }
303
304 quotes='""'
305
306 log(){
307 echo "$@" >> $logfile
308 }
309
310 log_file(){
311 log BEGIN $1
312 pr -n -t $1 >> $logfile
313 log END $1
314 }
315
316 echolog(){
317 log "$@"
318 echo "$@"
319 }
320
321 warn(){
322 log "WARNING: $*"
323 WARNINGS="${WARNINGS}WARNING: $*\n"
324 }
325
326 die(){
327 echolog "$@"
328 cat <<EOF
329
330 If you think configure made a mistake, make sure you are using the latest
331 version from Git. If the latest version fails, report the problem to the
332 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
333 EOF
334 if disabled logging; then
335 cat <<EOF
336 Rerun configure with logging enabled (do not use --disable-logging), and
337 include the log this produces with your report.
338 EOF
339 else
340 cat <<EOF
341 Include the log file "$logfile" produced by configure as this will help
342 solving the problem.
343 EOF
344 fi
345 exit 1
346 }
347
348 # Avoid locale weirdness, besides we really just want to translate ASCII.
349 toupper(){
350 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
351 }
352
353 tolower(){
354 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
355 }
356
357 c_escape(){
358 echo "$*" | sed 's/["\\]/\\\0/g'
359 }
360
361 sh_quote(){
362 v=$(echo "$1" | sed "s/'/'\\\\''/g")
363 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
364 echo "$v"
365 }
366
367 cleanws(){
368 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
369 }
370
371 filter(){
372 pat=$1
373 shift
374 for v; do
375 eval "case $v in $pat) echo $v ;; esac"
376 done
377 }
378
379 filter_out(){
380 pat=$1
381 shift
382 for v; do
383 eval "case $v in $pat) ;; *) echo $v ;; esac"
384 done
385 }
386
387 map(){
388 m=$1
389 shift
390 for v; do eval $m; done
391 }
392
393 add_suffix(){
394 suffix=$1
395 shift
396 for v; do echo ${v}${suffix}; done
397 }
398
399 set_all(){
400 value=$1
401 shift
402 for var in $*; do
403 eval $var=$value
404 done
405 }
406
407 set_weak(){
408 value=$1
409 shift
410 for var; do
411 eval : \${$var:=$value}
412 done
413 }
414
415 sanitize_var_name(){
416 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
417 }
418
419 set_safe(){
420 var=$1
421 shift
422 eval $(sanitize_var_name "$var")='$*'
423 }
424
425 get_safe(){
426 eval echo \$$(sanitize_var_name "$1")
427 }
428
429 pushvar(){
430 for pvar in $*; do
431 eval level=\${${pvar}_level:=0}
432 eval ${pvar}_${level}="\$$pvar"
433 eval ${pvar}_level=$(($level+1))
434 done
435 }
436
437 popvar(){
438 for pvar in $*; do
439 eval level=\${${pvar}_level:-0}
440 test $level = 0 && continue
441 eval level=$(($level-1))
442 eval $pvar="\${${pvar}_${level}}"
443 eval ${pvar}_level=$level
444 eval unset ${pvar}_${level}
445 done
446 }
447
448 enable(){
449 set_all yes $*
450 }
451
452 disable(){
453 set_all no $*
454 }
455
456 enable_weak(){
457 set_weak yes $*
458 }
459
460 disable_weak(){
461 set_weak no $*
462 }
463
464 enable_safe(){
465 for var; do
466 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
467 done
468 }
469
470 disable_safe(){
471 for var; do
472 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
473 done
474 }
475
476 do_enable_deep(){
477 for var; do
478 enabled $var && continue
479 eval sel="\$${var}_select"
480 eval sgs="\$${var}_suggest"
481 pushvar var sgs
482 enable_deep $sel
483 popvar sgs
484 enable_deep_weak $sgs
485 popvar var
486 done
487 }
488
489 enable_deep(){
490 do_enable_deep $*
491 enable $*
492 }
493
494 enable_deep_weak(){
495 for var; do
496 disabled $var && continue
497 pushvar var
498 do_enable_deep $var
499 popvar var
500 enable_weak $var
501 done
502 }
503
504 enabled(){
505 test "${1#!}" = "$1" && op== || op=!=
506 eval test "x\$${1#!}" $op "xyes"
507 }
508
509 disabled(){
510 test "${1#!}" = "$1" && op== || op=!=
511 eval test "x\$${1#!}" $op "xno"
512 }
513
514 enabled_all(){
515 for opt; do
516 enabled $opt || return 1
517 done
518 }
519
520 disabled_all(){
521 for opt; do
522 disabled $opt || return 1
523 done
524 }
525
526 enabled_any(){
527 for opt; do
528 enabled $opt && return 0
529 done
530 }
531
532 disabled_any(){
533 for opt; do
534 disabled $opt && return 0
535 done
536 return 1
537 }
538
539 set_default(){
540 for opt; do
541 eval : \${$opt:=\$${opt}_default}
542 done
543 }
544
545 is_in(){
546 value=$1
547 shift
548 for var in $*; do
549 [ $var = $value ] && return 0
550 done
551 return 1
552 }
553
554 do_check_deps(){
555 for cfg; do
556 cfg="${cfg#!}"
557 enabled ${cfg}_checking && die "Circular dependency for $cfg."
558 disabled ${cfg}_checking && continue
559 enable ${cfg}_checking
560 append allopts $cfg
561
562 eval dep_all="\$${cfg}_deps"
563 eval dep_any="\$${cfg}_deps_any"
564 eval dep_sel="\$${cfg}_select"
565 eval dep_sgs="\$${cfg}_suggest"
566 eval dep_ifa="\$${cfg}_if"
567 eval dep_ifn="\$${cfg}_if_any"
568
569 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
570 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
571 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
572
573 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
574 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
575 enabled_all $dep_all || disable $cfg
576 enabled_any $dep_any || disable $cfg
577 disabled_any $dep_sel && disable $cfg
578
579 if enabled $cfg; then
580 enable_deep $dep_sel
581 enable_deep_weak $dep_sgs
582 fi
583
584 disable ${cfg}_checking
585 done
586 }
587
588 check_deps(){
589 unset allopts
590
591 do_check_deps "$@"
592
593 for cfg in $allopts; do
594 enabled $cfg || continue
595 eval dep_extralibs="\$${cfg}_extralibs"
596 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
597 done
598 }
599
600 print_config(){
601 pfx=$1
602 files=$2
603 shift 2
604 map 'eval echo "$v \${$v:-no}"' "$@" |
605 awk "BEGIN { split(\"$files\", files) }
606 {
607 c = \"$pfx\" toupper(\$1);
608 v = \$2;
609 sub(/yes/, 1, v);
610 sub(/no/, 0, v);
611 for (f in files) {
612 file = files[f];
613 if (file ~ /\\.h\$/) {
614 printf(\"#define %s %d\\n\", c, v) >>file;
615 } else if (file ~ /\\.asm\$/) {
616 printf(\"%%define %s %d\\n\", c, v) >>file;
617 } else if (file ~ /\\.mak\$/) {
618 n = -v ? \"\" : \"!\";
619 printf(\"%s%s=yes\\n\", n, c) >>file;
620 }
621 }
622 }"
623 }
624
625 print_enabled(){
626 suf=$1
627 shift
628 for v; do
629 enabled $v && printf "%s\n" ${v%$suf};
630 done
631 }
632
633 append(){
634 var=$1
635 shift
636 eval "$var=\"\$$var $*\""
637 }
638
639 prepend(){
640 var=$1
641 shift
642 eval "$var=\"$* \$$var\""
643 }
644
645 add_cppflags(){
646 append CPPFLAGS "$@"
647 }
648
649 add_cflags(){
650 append CFLAGS $($cflags_filter "$@")
651 }
652
653 add_asflags(){
654 append ASFLAGS $($asflags_filter "$@")
655 }
656
657 add_ldflags(){
658 append LDFLAGS $($ldflags_filter "$@")
659 }
660
661 add_extralibs(){
662 prepend extralibs $($ldflags_filter "$@")
663 }
664
665 add_host_cppflags(){
666 append host_cppflags "$@"
667 }
668
669 add_host_cflags(){
670 append host_cflags $($host_cflags_filter "$@")
671 }
672
673 add_host_ldflags(){
674 append host_ldflags $($host_ldflags_filter "$@")
675 }
676
677 add_compat(){
678 append compat_objs $1
679 shift
680 map 'add_cppflags -D$v' "$@"
681 }
682
683 check_cmd(){
684 log "$@"
685 "$@" >> $logfile 2>&1
686 }
687
688 cc_o(){
689 eval printf '%s\\n' $CC_O
690 }
691
692 cc_e(){
693 eval printf '%s\\n' $CC_E
694 }
695
696 check_cc(){
697 log check_cc "$@"
698 cat > $TMPC
699 log_file $TMPC
700 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
701 }
702
703 check_cpp(){
704 log check_cpp "$@"
705 cat > $TMPC
706 log_file $TMPC
707 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
708 }
709
710 as_o(){
711 eval printf '%s\\n' $AS_O
712 }
713
714 check_as(){
715 log check_as "$@"
716 cat > $TMPS
717 log_file $TMPS
718 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
719 }
720
721 check_inline_asm(){
722 log check_inline_asm "$@"
723 name="$1"
724 code="$2"
725 shift 2
726 disable $name
727 check_cc "$@" <<EOF && enable $name
728 void foo(void){ __asm__ volatile($code); }
729 EOF
730 }
731
732 check_insn(){
733 log check_insn "$@"
734 check_inline_asm ${1}_inline "\"$2\""
735 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
736 }
737
738 check_yasm(){
739 log check_yasm "$@"
740 echo "$1" > $TMPS
741 log_file $TMPS
742 shift 1
743 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
744 }
745
746 ld_o(){
747 eval printf '%s\\n' $LD_O
748 }
749
750 check_ld(){
751 log check_ld "$@"
752 flags=$(filter_out '-l*' "$@")
753 libs=$(filter '-l*' "$@")
754 check_cc $($cflags_filter $flags) || return
755 flags=$($ldflags_filter $flags)
756 libs=$($ldflags_filter $libs)
757 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
758 }
759
760 check_code(){
761 log check_code "$@"
762 check=$1
763 headers=$2
764 code=$3
765 shift 3
766 {
767 for hdr in $headers; do
768 echo "#include <$hdr>"
769 done
770 echo "int main(void) { $code; return 0; }"
771 } | check_$check "$@"
772 }
773
774 check_cppflags(){
775 log check_cppflags "$@"
776 check_cc "$@" <<EOF && append CPPFLAGS "$@"
777 int x;
778 EOF
779 }
780
781 check_cflags(){
782 log check_cflags "$@"
783 set -- $($cflags_filter "$@")
784 check_cc "$@" <<EOF && append CFLAGS "$@"
785 int x;
786 EOF
787 }
788
789 test_ldflags(){
790 log test_ldflags "$@"
791 check_ld "$@" <<EOF
792 int main(void){ return 0; }
793 EOF
794 }
795
796 check_ldflags(){
797 log check_ldflags "$@"
798 test_ldflags "$@" && add_ldflags "$@"
799 }
800
801 check_header(){
802 log check_header "$@"
803 header=$1
804 shift
805 disable_safe $header
806 check_cpp "$@" <<EOF && enable_safe $header
807 #include <$header>
808 int x;
809 EOF
810 }
811
812 check_func(){
813 log check_func "$@"
814 func=$1
815 shift
816 disable $func
817 check_ld "$@" <<EOF && enable $func
818 extern int $func();
819 int main(void){ $func(); }
820 EOF
821 }
822
823 check_mathfunc(){
824 log check_mathfunc "$@"
825 func=$1
826 narg=$2
827 shift 2
828 test $narg = 2 && args="f, g" || args="f"
829 disable $func
830 check_ld "$@" <<EOF && enable $func
831 #include <math.h>
832 float foo(float f, float g) { return $func($args); }
833 int main(void){ return 0; }
834 EOF
835 }
836
837 check_func_headers(){
838 log check_func_headers "$@"
839 headers=$1
840 funcs=$2
841 shift 2
842 {
843 for hdr in $headers; do
844 echo "#include <$hdr>"
845 done
846 for func in $funcs; do
847 echo "long check_$func(void) { return (long) $func; }"
848 done
849 echo "int main(void) { return 0; }"
850 } | check_ld "$@" && enable $funcs && enable_safe $headers
851 }
852
853 check_cpp_condition(){
854 log check_cpp_condition "$@"
855 header=$1
856 condition=$2
857 shift 2
858 check_cpp "$@" <<EOF
859 #include <$header>
860 #if !($condition)
861 #error "unsatisfied condition: $condition"
862 #endif
863 EOF
864 }
865
866 check_lib(){
867 log check_lib "$@"
868 header="$1"
869 func="$2"
870 shift 2
871 check_header $header && check_func $func "$@" && add_extralibs "$@"
872 }
873
874 check_lib2(){
875 log check_lib2 "$@"
876 headers="$1"
877 funcs="$2"
878 shift 2
879 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
880 }
881
882 check_pkg_config(){
883 log check_pkg_config "$@"
884 pkg="$1"
885 headers="$2"
886 funcs="$3"
887 shift 3
888 $pkg_config --exists $pkg || return
889 pkg_cflags=$($pkg_config --cflags $pkg)
890 pkg_libs=$($pkg_config --libs $pkg)
891 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
892 set_safe ${pkg}_cflags $pkg_cflags &&
893 set_safe ${pkg}_libs $pkg_libs
894 }
895
896 check_exec(){
897 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
898 }
899
900 check_exec_crash(){
901 code=$(cat)
902
903 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
904 # are safe but may not be available everywhere. Thus we use
905 # raise(SIGTERM) instead. The check is run in a subshell so we
906 # can redirect the "Terminated" message from the shell. SIGBUS
907 # is not defined by standard C so it is used conditionally.
908
909 (check_exec "$@") >> $logfile 2>&1 <<EOF
910 #include <signal.h>
911 static void sighandler(int sig){
912 raise(SIGTERM);
913 }
914 int foo(void){
915 $code
916 }
917 int (*func_ptr)(void) = foo;
918 int main(void){
919 signal(SIGILL, sighandler);
920 signal(SIGFPE, sighandler);
921 signal(SIGSEGV, sighandler);
922 #ifdef SIGBUS
923 signal(SIGBUS, sighandler);
924 #endif
925 return func_ptr();
926 }
927 EOF
928 }
929
930 check_type(){
931 log check_type "$@"
932 headers=$1
933 type=$2
934 shift 2
935 disable_safe "$type"
936 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
937 }
938
939 check_struct(){
940 log check_struct "$@"
941 headers=$1
942 struct=$2
943 member=$3
944 shift 3
945 disable_safe "${struct}_${member}"
946 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
947 enable_safe "${struct}_${member}"
948 }
949
950 check_builtin(){
951 log check_builtin "$@"
952 name=$1
953 headers=$2
954 builtin=$3
955 shift 3
956 disable "$name"
957 check_code ld "$headers" "$builtin" "$@" && enable "$name"
958 }
959
960 require(){
961 name="$1"
962 header="$2"
963 func="$3"
964 shift 3
965 check_lib $header $func "$@" || die "ERROR: $name not found"
966 }
967
968 require2(){
969 name="$1"
970 headers="$2"
971 func="$3"
972 shift 3
973 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
974 }
975
976 require_pkg_config(){
977 pkg="$1"
978 check_pkg_config "$@" || die "ERROR: $pkg not found"
979 add_cflags $(get_safe ${pkg}_cflags)
980 add_extralibs $(get_safe ${pkg}_libs)
981 }
982
983 hostcc_o(){
984 eval printf '%s\\n' $HOSTCC_O
985 }
986
987 check_host_cc(){
988 log check_host_cc "$@"
989 cat > $TMPC
990 log_file $TMPC
991 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
992 }
993
994 check_host_cppflags(){
995 log check_host_cppflags "$@"
996 check_host_cc "$@" <<EOF && append host_cppflags "$@"
997 int x;
998 EOF
999 }
1000
1001 check_host_cflags(){
1002 log check_host_cflags "$@"
1003 set -- $($host_cflags_filter "$@")
1004 check_host_cc "$@" <<EOF && append host_cflags "$@"
1005 int x;
1006 EOF
1007 }
1008
1009 apply(){
1010 file=$1
1011 shift
1012 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1013 }
1014
1015 cp_if_changed(){
1016 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1017 mkdir -p "$(dirname $2)"
1018 $cp_f "$1" "$2"
1019 }
1020
1021 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1022 # system-dependent things.
1023
1024 COMPONENT_LIST="
1025 bsfs
1026 decoders
1027 demuxers
1028 encoders
1029 filters
1030 hwaccels
1031 indevs
1032 muxers
1033 outdevs
1034 parsers
1035 protocols
1036 "
1037
1038 EXTERNAL_LIBRARY_LIST="
1039 avisynth
1040 bzlib
1041 frei0r
1042 gnutls
1043 libcdio
1044 libdc1394
1045 libfaac
1046 libfdk_aac
1047 libfreetype
1048 libgsm
1049 libilbc
1050 libmp3lame
1051 libopencore_amrnb
1052 libopencore_amrwb
1053 libopencv
1054 libopenjpeg
1055 libopus
1056 libpulse
1057 librtmp
1058 libschroedinger
1059 libspeex
1060 libtheora
1061 libvo_aacenc
1062 libvo_amrwbenc
1063 libvorbis
1064 libvpx
1065 libwavpack
1066 libx264
1067 libxavs
1068 libxvid
1069 openssl
1070 x11grab
1071 zlib
1072 "
1073
1074 HWACCEL_LIST="
1075 dxva2
1076 vaapi
1077 vda
1078 vdpau
1079 "
1080 LIBRARY_LIST="
1081 avcodec
1082 avdevice
1083 avfilter
1084 avformat
1085 avresample
1086 avutil
1087 swscale
1088 "
1089
1090 PROGRAM_LIST="
1091 avconv
1092 avplay
1093 avprobe
1094 avserver
1095 "
1096
1097 CONFIG_LIST="
1098 $COMPONENT_LIST
1099 $EXTERNAL_LIBRARY_LIST
1100 $HWACCEL_LIST
1101 $LIBRARY_LIST
1102 $PROGRAM_LIST
1103 dct
1104 doc
1105 error_resilience
1106 fft
1107 gpl
1108 gray
1109 hardcoded_tables
1110 lsp
1111 lzo
1112 mdct
1113 memalign_hack
1114 network
1115 nonfree
1116 pic
1117 rdft
1118 runtime_cpudetect
1119 safe_bitstream_reader
1120 shared
1121 small
1122 sram
1123 static
1124 swscale_alpha
1125 thumb
1126 version3
1127 xmm_clobber_test
1128 "
1129
1130 THREADS_LIST='
1131 pthreads
1132 w32threads
1133 '
1134
1135 ATOMICS_LIST='
1136 atomics_gcc
1137 atomics_suncc
1138 atomics_win32
1139 '
1140
1141 ARCH_LIST='
1142 aarch64
1143 alpha
1144 arm
1145 avr32
1146 avr32_ap
1147 avr32_uc
1148 bfin
1149 ia64
1150 m68k
1151 mips
1152 mips64
1153 parisc
1154 ppc
1155 ppc64
1156 s390
1157 sh4
1158 sparc
1159 sparc64
1160 tilegx
1161 tilepro
1162 tomi
1163 x86
1164 x86_32
1165 x86_64
1166 '
1167
1168 ARCH_EXT_LIST_ARM='
1169 armv5te
1170 armv6
1171 armv6t2
1172 neon
1173 vfp
1174 vfpv3
1175 '
1176
1177 ARCH_EXT_LIST_X86='
1178 amd3dnow
1179 amd3dnowext
1180 avx
1181 fma4
1182 i686
1183 mmx
1184 mmxext
1185 sse
1186 sse2
1187 sse3
1188 sse4
1189 sse42
1190 ssse3
1191 '
1192
1193 ARCH_EXT_LIST="
1194 $ARCH_EXT_LIST_ARM
1195 $ARCH_EXT_LIST_X86
1196 altivec
1197 ppc4xx
1198 vis
1199 "
1200
1201 HAVE_LIST_CMDLINE='
1202 inline_asm
1203 symver
1204 yasm
1205 '
1206
1207 HAVE_LIST_PUB='
1208 bigendian
1209 fast_unaligned
1210 '
1211
1212 MATH_FUNCS="
1213 atanf
1214 atan2f
1215 cbrtf
1216 cosf
1217 exp2
1218 exp2f
1219 expf
1220 isinf
1221 isnan
1222 ldexpf
1223 llrint
1224 llrintf
1225 log2
1226 log2f
1227 log10f
1228 lrint
1229 lrintf
1230 powf
1231 rint
1232 round
1233 roundf
1234 sinf
1235 trunc
1236 truncf
1237 "
1238
1239 HAVE_LIST="
1240 $ARCH_EXT_LIST
1241 $(add_suffix _external $ARCH_EXT_LIST)
1242 $(add_suffix _inline $ARCH_EXT_LIST)
1243 $HAVE_LIST_CMDLINE
1244 $HAVE_LIST_PUB
1245 $THREADS_LIST
1246 $ATOMICS_LIST
1247 $MATH_FUNCS
1248 aligned_malloc
1249 aligned_stack
1250 alsa_asoundlib_h
1251 altivec_h
1252 arpa_inet_h
1253 asm_mod_q
1254 asm_mod_y
1255 atomic_cas_ptr
1256 atomics_native
1257 attribute_may_alias
1258 attribute_packed
1259 cdio_paranoia_h
1260 cdio_paranoia_paranoia_h
1261 closesocket
1262 CommandLineToArgvW
1263 cpunop
1264 CryptGenRandom
1265 dcbzl
1266 dev_bktr_ioctl_bt848_h
1267 dev_bktr_ioctl_meteor_h
1268 dev_ic_bt8xx_h
1269 dev_video_bktr_ioctl_bt848_h
1270 dev_video_meteor_ioctl_meteor_h
1271 direct_h
1272 dlfcn_h
1273 dlopen
1274 dos_paths
1275 dxva_h
1276 ebp_available
1277 ebx_available
1278 fast_64bit
1279 fast_clz
1280 fast_cmov
1281 fcntl
1282 fork
1283 getaddrinfo
1284 gethrtime
1285 getopt
1286 GetProcessAffinityMask
1287 GetProcessMemoryInfo
1288 GetProcessTimes
1289 GetSystemTimeAsFileTime
1290 getrusage
1291 getservbyport
1292 gettimeofday
1293 gnu_as
1294 gsm_h
1295 ibm_asm
1296 inet_aton
1297 io_h
1298 inline_asm_labels
1299 isatty
1300 jack_port_get_latency_range
1301 ldbrx
1302 libdc1394_1
1303 libdc1394_2
1304 local_aligned_16
1305 local_aligned_8
1306 localtime_r
1307 loongson
1308 machine_ioctl_bt848_h
1309 machine_ioctl_meteor_h
1310 machine_rw_barrier
1311 malloc_h
1312 MapViewOfFile
1313 memalign
1314 MemoryBarrier
1315 mkstemp
1316 mm_empty
1317 mmap
1318 mprotect
1319 msvcrt
1320 nanosleep
1321 poll_h
1322 posix_memalign
1323 pragma_deprecated
1324 rdtsc
1325 sched_getaffinity
1326 sdl
1327 SetConsoleTextAttribute
1328 setmode
1329 setrlimit
1330 Sleep
1331 sndio_h
1332 socklen_t
1333 soundcard_h
1334 strerror_r
1335 strptime
1336 strtok_r
1337 struct_addrinfo
1338 struct_group_source_req
1339 struct_ip_mreq_source
1340 struct_ipv6_mreq
1341 struct_pollfd
1342 struct_rusage_ru_maxrss
1343 struct_sockaddr_in6
1344 struct_sockaddr_sa_len
1345 struct_sockaddr_storage
1346 struct_v4l2_frmivalenum_discrete
1347 symver_asm_label
1348 symver_gnu_asm
1349 sync_val_compare_and_swap
1350 sysconf
1351 sysctl
1352 sys_mman_h
1353 sys_param_h
1354 sys_resource_h
1355 sys_select_h
1356 sys_soundcard_h
1357 sys_time_h
1358 sys_un_h
1359 sys_videoio_h
1360 threads
1361 unistd_h
1362 usleep
1363 vfp_args
1364 VirtualAlloc
1365 windows_h
1366 winsock2_h
1367 xform_asm
1368 xmm_clobbers
1369 "
1370
1371 # options emitted with CONFIG_ prefix but not available on the command line
1372 CONFIG_EXTRA="
1373 aandcttables
1374 ac3dsp
1375 audio_frame_queue
1376 dsputil
1377 gcrypt
1378 golomb
1379 gplv3
1380 h264chroma
1381 h264dsp
1382 h264pred
1383 h264qpel
1384 hpeldsp
1385 huffman
1386 lgplv3
1387 lpc
1388 mpegaudio
1389 mpegaudiodsp
1390 mpegvideo
1391 mpegvideoenc
1392 nettle
1393 rangecoder
1394 riffdec
1395 riffenc
1396 rtpdec
1397 rtpenc_chain
1398 sinewin
1399 videodsp
1400 vp3dsp
1401 "
1402
1403 CMDLINE_SELECT="
1404 $ARCH_EXT_LIST
1405 $CONFIG_LIST
1406 $HAVE_LIST_CMDLINE
1407 $THREADS_LIST
1408 asm
1409 cross_compile
1410 debug
1411 extra_warnings
1412 logging
1413 lto
1414 optimizations
1415 "
1416
1417 PATHS_LIST='
1418 bindir
1419 datadir
1420 docdir
1421 incdir
1422 libdir
1423 mandir
1424 prefix
1425 shlibdir
1426 '
1427
1428 CMDLINE_SET="
1429 $PATHS_LIST
1430 ar
1431 arch
1432 as
1433 build_suffix
1434 cc
1435 cpu
1436 cross_prefix
1437 dep_cc
1438 extra_version
1439 host_cc
1440 host_cflags
1441 host_ld
1442 host_ldflags
1443 host_libs
1444 host_os
1445 ld
1446 logfile
1447 malloc_prefix
1448 nm
1449 optflags
1450 pkg_config
1451 random_seed
1452 samples
1453 sysinclude
1454 sysroot
1455 target_exec
1456 target_os
1457 target_path
1458 target_samples
1459 toolchain
1460 "
1461
1462 CMDLINE_APPEND="
1463 extra_cflags
1464 host_cppflags
1465 "
1466
1467 # code dependency declarations
1468
1469 # architecture extensions
1470
1471 armv5te_deps="arm"
1472 armv6_deps="arm"
1473 armv6t2_deps="arm"
1474 neon_deps="arm"
1475 vfp_deps="arm"
1476 vfpv3_deps="vfp"
1477
1478 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1479
1480 altivec_deps="ppc"
1481 ppc4xx_deps="ppc"
1482
1483 vis_deps="sparc"
1484
1485 cpunop_deps="i686"
1486 x86_64_select="i686"
1487 x86_64_suggest="fast_cmov"
1488
1489 amd3dnow_deps="mmx"
1490 amd3dnowext_deps="amd3dnow"
1491 mmx_deps="x86"
1492 mmxext_deps="mmx"
1493 sse_deps="mmxext"
1494 sse2_deps="sse"
1495 sse3_deps="sse2"
1496 ssse3_deps="sse3"
1497 sse4_deps="ssse3"
1498 sse42_deps="sse4"
1499 avx_deps="sse42"
1500 fma4_deps="avx"
1501
1502 mmx_external_deps="yasm"
1503 mmx_inline_deps="inline_asm"
1504 mmx_suggest="mmx_external mmx_inline"
1505
1506 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1507 eval dep=\$${ext}_deps
1508 eval ${ext}_external_deps='"${dep}_external"'
1509 eval ${ext}_inline_deps='"${dep}_inline"'
1510 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1511 done
1512
1513 aligned_stack_if_any="ppc x86"
1514 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1515 fast_clz_if_any="alpha avr32 mips ppc x86"
1516 fast_unaligned_if_any="ppc x86"
1517
1518 inline_asm_deps="!tms470"
1519 need_memalign="altivec neon sse"
1520
1521 symver_if_any="symver_asm_label symver_gnu_asm"
1522
1523 log2_deps="!msvcrt"
1524
1525 # subsystems
1526 dct_select="rdft"
1527 error_resilience_select="dsputil"
1528 lpc_select="dsputil"
1529 mdct_select="fft"
1530 rdft_select="fft"
1531 mpegaudio_select="mpegaudiodsp"
1532 mpegaudiodsp_select="dct"
1533 mpegvideo_select="dsputil hpeldsp videodsp"
1534 mpegvideoenc_select="mpegvideo"
1535
1536 # decoders / encoders
1537 aac_decoder_select="mdct sinewin"
1538 aac_encoder_select="audio_frame_queue mdct sinewin"
1539 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1540 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1541 ac3_encoder_select="mdct ac3dsp dsputil"
1542 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1543 aic_decoder_select="dsputil golomb"
1544 alac_encoder_select="lpc"
1545 als_decoder_select="dsputil"
1546 amrnb_decoder_select="lsp"
1547 amrwb_decoder_select="lsp"
1548 amv_decoder_select="dsputil hpeldsp"
1549 ape_decoder_select="dsputil"
1550 asv1_decoder_select="dsputil"
1551 asv1_encoder_select="dsputil"
1552 asv2_decoder_select="dsputil"
1553 asv2_encoder_select="dsputil"
1554 atrac1_decoder_select="mdct sinewin"
1555 atrac3_decoder_select="mdct"
1556 bink_decoder_select="dsputil hpeldsp"
1557 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1558 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1559 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1560 cllc_decoder_select="dsputil"
1561 comfortnoise_encoder_select="lpc"
1562 cook_decoder_select="dsputil mdct sinewin"
1563 cscd_decoder_select="lzo"
1564 cscd_decoder_suggest="zlib"
1565 dca_decoder_select="mdct"
1566 dnxhd_decoder_select="dsputil"
1567 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1568 dvvideo_decoder_select="dsputil"
1569 dvvideo_encoder_select="dsputil"
1570 dxa_decoder_deps="zlib"
1571 eac3_decoder_select="ac3_decoder"
1572 eac3_encoder_select="ac3_encoder"
1573 eamad_decoder_select="aandcttables dsputil mpegvideo"
1574 eatgq_decoder_select="aandcttables dsputil"
1575 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1576 ffv1_decoder_select="dsputil golomb rangecoder"
1577 ffv1_encoder_select="dsputil rangecoder"
1578 ffvhuff_decoder_select="dsputil"
1579 ffvhuff_encoder_select="dsputil huffman"
1580 flac_decoder_select="golomb"
1581 flac_encoder_select="dsputil golomb lpc"
1582 flashsv_decoder_deps="zlib"
1583 flashsv_encoder_deps="zlib"
1584 flashsv2_decoder_deps="zlib"
1585 flv_decoder_select="h263_decoder"
1586 flv_encoder_select="h263_encoder"
1587 fourxm_decoder_select="dsputil"
1588 fraps_decoder_select="dsputil huffman"
1589 g2m_decoder_deps="zlib"
1590 g2m_decoder_select="dsputil"
1591 h261_decoder_select="error_resilience mpegvideo"
1592 h261_encoder_select="aandcttables mpegvideoenc"
1593 h263_decoder_select="error_resilience h263_parser mpegvideo"
1594 h263_encoder_select="aandcttables mpegvideoenc"
1595 h263i_decoder_select="h263_decoder"
1596 h263p_encoder_select="h263_encoder"
1597 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1598 h264_decoder_suggest="error_resilience"
1599 huffyuv_decoder_select="dsputil"
1600 huffyuv_encoder_select="dsputil huffman"
1601 iac_decoder_select="dsputil fft mdct sinewin"
1602 imc_decoder_select="dsputil fft mdct sinewin"
1603 indeo3_decoder_select="hpeldsp"
1604 interplay_video_decoder_select="hpeldsp"
1605 jpegls_decoder_select="dsputil golomb hpeldsp"
1606 jpegls_encoder_select="golomb"
1607 jv_decoder_select="dsputil"
1608 lagarith_decoder_select="dsputil"
1609 ljpeg_encoder_select="aandcttables mpegvideoenc"
1610 loco_decoder_select="golomb"
1611 mdec_decoder_select="dsputil error_resilience mpegvideo"
1612 metasound_decoder_select="lsp mdct sinewin"
1613 mimic_decoder_select="dsputil hpeldsp"
1614 mjpeg_decoder_select="dsputil hpeldsp"
1615 mjpegb_decoder_select="dsputil hpeldsp"
1616 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1617 mlp_decoder_select="dsputil mlp_parser"
1618 motionpixels_decoder_select="dsputil"
1619 mp1_decoder_select="mpegaudio"
1620 mp1float_decoder_select="mpegaudio"
1621 mp2_decoder_select="mpegaudio"
1622 mp2float_decoder_select="mpegaudio"
1623 mp3_decoder_select="mpegaudio"
1624 mp3adu_decoder_select="mpegaudio"
1625 mp3adufloat_decoder_select="mpegaudio"
1626 mp3float_decoder_select="mpegaudio"
1627 mp3on4_decoder_select="mpegaudio"
1628 mp3on4float_decoder_select="mpegaudio"
1629 mpc7_decoder_select="dsputil mpegaudiodsp"
1630 mpc8_decoder_select="dsputil mpegaudiodsp"
1631 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1632 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1633 mpeg1video_decoder_select="error_resilience mpegvideo"
1634 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1635 mpeg2video_decoder_select="error_resilience mpegvideo"
1636 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1637 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1638 mpeg4_encoder_select="h263_encoder"
1639 msmpeg4v1_decoder_select="h263_decoder"
1640 msmpeg4v2_decoder_select="h263_decoder"
1641 msmpeg4v2_encoder_select="h263_encoder"
1642 msmpeg4v3_decoder_select="h263_decoder"
1643 msmpeg4v3_encoder_select="h263_encoder"
1644 mss2_decoder_select="error_resilience vc1_decoder"
1645 mxpeg_decoder_select="dsputil hpeldsp"
1646 nellymoser_decoder_select="mdct sinewin"
1647 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1648 nuv_decoder_select="dsputil lzo"
1649 png_decoder_deps="zlib"
1650 png_decoder_select="dsputil"
1651 png_encoder_deps="zlib"
1652 png_encoder_select="dsputil"
1653 prores_decoder_select="dsputil"
1654 prores_encoder_select="dsputil"
1655 qcelp_decoder_select="lsp"
1656 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1657 ra_144_encoder_select="audio_frame_queue lpc"
1658 ralf_decoder_select="golomb"
1659 rv10_decoder_select="error_resilience h263_decoder"
1660 rv10_encoder_select="h263_encoder"
1661 rv20_decoder_select="error_resilience h263_decoder"
1662 rv20_encoder_select="h263_encoder"
1663 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1664 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1665 shorten_decoder_select="golomb"
1666 sipr_decoder_select="lsp"
1667 sp5x_decoder_select="dsputil hpeldsp"
1668 svq1_decoder_select="hpeldsp"
1669 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1670 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1671 svq3_decoder_suggest="error_resilience zlib"
1672 tak_decoder_select="dsputil"
1673 theora_decoder_select="vp3_decoder"
1674 tiff_decoder_suggest="zlib"
1675 tiff_encoder_suggest="zlib"
1676 thp_decoder_select="dsputil hpeldsp"
1677 truehd_decoder_select="mlp_decoder"
1678 truemotion2_decoder_select="dsputil"
1679 truespeech_decoder_select="dsputil"
1680 tscc_decoder_deps="zlib"
1681 twinvq_decoder_select="mdct lsp sinewin"
1682 utvideo_decoder_select="dsputil"
1683 utvideo_encoder_select="dsputil huffman"
1684 vble_decoder_select="dsputil"
1685 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1686 vc1image_decoder_select="vc1_decoder"
1687 vorbis_decoder_select="mdct"
1688 vorbis_encoder_select="mdct"
1689 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1690 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1691 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1692 vp6a_decoder_select="vp6_decoder"
1693 vp6f_decoder_select="vp6_decoder"
1694 vp8_decoder_select="h264pred videodsp"
1695 wmapro_decoder_select="mdct sinewin"
1696 wmav1_decoder_select="mdct sinewin"
1697 wmav1_encoder_select="mdct sinewin"
1698 wmav2_decoder_select="mdct sinewin"
1699 wmav2_encoder_select="mdct sinewin"
1700 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1701 wmv1_decoder_select="h263_decoder"
1702 wmv1_encoder_select="h263_encoder"
1703 wmv2_decoder_select="h263_decoder videodsp"
1704 wmv2_encoder_select="h263_encoder"
1705 wmv3_decoder_select="vc1_decoder"
1706 wmv3image_decoder_select="wmv3_decoder"
1707 zerocodec_decoder_deps="zlib"
1708 zlib_decoder_deps="zlib"
1709 zlib_encoder_deps="zlib"
1710 zmbv_decoder_deps="zlib"
1711 zmbv_encoder_deps="zlib"
1712
1713 # hardware accelerators
1714 dxva2_deps="dxva2api_h"
1715 vaapi_deps="va_va_h"
1716 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1717 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1718 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1719
1720 h263_vaapi_hwaccel_deps="vaapi"
1721 h263_vaapi_hwaccel_select="h263_decoder"
1722 h263_vdpau_hwaccel_deps="vdpau"
1723 h263_vdpau_hwaccel_select="h263_decoder"
1724 h264_dxva2_hwaccel_deps="dxva2"
1725 h264_dxva2_hwaccel_select="h264_decoder"
1726 h264_vaapi_hwaccel_deps="vaapi"
1727 h264_vaapi_hwaccel_select="h264_decoder"
1728 h264_vda_hwaccel_deps="vda"
1729 h264_vda_hwaccel_select="h264_decoder"
1730 h264_vdpau_hwaccel_deps="vdpau"
1731 h264_vdpau_hwaccel_select="h264_decoder"
1732 mpeg1_vdpau_hwaccel_deps="vdpau"
1733 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1734 mpeg2_dxva2_hwaccel_deps="dxva2"
1735 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1736 mpeg2_vaapi_hwaccel_deps="vaapi"
1737 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1738 mpeg2_vdpau_hwaccel_deps="vdpau"
1739 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1740 mpeg4_vaapi_hwaccel_deps="vaapi"
1741 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1742 mpeg4_vdpau_hwaccel_deps="vdpau"
1743 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1744 vc1_dxva2_hwaccel_deps="dxva2"
1745 vc1_dxva2_hwaccel_select="vc1_decoder"
1746 vc1_vaapi_hwaccel_deps="vaapi"
1747 vc1_vaapi_hwaccel_select="vc1_decoder"
1748 vc1_vdpau_hwaccel_deps="vdpau"
1749 vc1_vdpau_hwaccel_select="vc1_decoder"
1750 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1751 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1752 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1753
1754 # parsers
1755 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1756 mpeg4video_parser_select="error_resilience mpegvideo"
1757 mpegvideo_parser_select="error_resilience mpegvideo"
1758 vc1_parser_select="mpegvideo"
1759
1760 # external libraries
1761 libfaac_encoder_deps="libfaac"
1762 libfaac_encoder_select="audio_frame_queue"
1763 libfdk_aac_decoder_deps="libfdk_aac"
1764 libfdk_aac_encoder_deps="libfdk_aac"
1765 libfdk_aac_encoder_select="audio_frame_queue"
1766 libgsm_decoder_deps="libgsm"
1767 libgsm_encoder_deps="libgsm"
1768 libgsm_ms_decoder_deps="libgsm"
1769 libgsm_ms_encoder_deps="libgsm"
1770 libilbc_decoder_deps="libilbc"
1771 libilbc_encoder_deps="libilbc"
1772 libmp3lame_encoder_deps="libmp3lame"
1773 libmp3lame_encoder_select="audio_frame_queue"
1774 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1775 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1776 libopencore_amrnb_encoder_select="audio_frame_queue"
1777 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1778 libopenjpeg_decoder_deps="libopenjpeg"
1779 libopenjpeg_encoder_deps="libopenjpeg"
1780 libopus_decoder_deps="libopus"
1781 libopus_encoder_deps="libopus"
1782 libopus_encoder_select="audio_frame_queue"
1783 libschroedinger_decoder_deps="libschroedinger"
1784 libschroedinger_encoder_deps="libschroedinger"
1785 libspeex_decoder_deps="libspeex"
1786 libspeex_encoder_deps="libspeex"
1787 libspeex_encoder_select="audio_frame_queue"
1788 libtheora_encoder_deps="libtheora"
1789 libvo_aacenc_encoder_deps="libvo_aacenc"
1790 libvo_aacenc_encoder_select="audio_frame_queue"
1791 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1792 libvorbis_encoder_deps="libvorbis"
1793 libvorbis_encoder_select="audio_frame_queue"
1794 libvpx_vp8_decoder_deps="libvpx"
1795 libvpx_vp8_encoder_deps="libvpx"
1796 libvpx_vp9_decoder_deps="libvpx"
1797 libvpx_vp9_encoder_deps="libvpx"
1798 libwavpack_encoder_deps="libwavpack"
1799 libx264_encoder_deps="libx264"
1800 libxavs_encoder_deps="libxavs"
1801 libxvid_encoder_deps="libxvid"
1802
1803 # demuxers / muxers
1804 ac3_demuxer_select="ac3_parser"
1805 asf_demuxer_select="riffdec"
1806 asf_muxer_select="riffenc"
1807 asf_stream_muxer_select="asf_muxer"
1808 avi_demuxer_select="riffdec"
1809 avi_muxer_select="riffenc"
1810 avisynth_demuxer_deps="avisynth"
1811 avisynth_demuxer_select="riffdec"
1812 caf_demuxer_select="riffdec"
1813 dirac_demuxer_select="dirac_parser"
1814 dxa_demuxer_select="riffdec"
1815 eac3_demuxer_select="ac3_parser"
1816 flac_demuxer_select="flac_parser"
1817 hls_muxer_select="mpegts_muxer"
1818 ipod_muxer_select="mov_muxer"
1819 ismv_muxer_select="mov_muxer"
1820 matroska_audio_muxer_select="matroska_muxer"
1821 matroska_demuxer_select="riffdec"
1822 matroska_demuxer_suggest="bzlib lzo zlib"
1823 matroska_muxer_select="riffenc"
1824 mmf_muxer_select="riffenc"
1825 mov_demuxer_select="riffdec"
1826 mov_demuxer_suggest="zlib"
1827 mov_muxer_select="riffenc rtpenc_chain"
1828 mp3_demuxer_select="mpegaudio_parser"
1829 mp4_muxer_select="mov_muxer"
1830 mpegts_muxer_select="adts_muxer latm_muxer"
1831 mpegtsraw_demuxer_select="mpegts_demuxer"
1832 mxf_d10_muxer_select="mxf_muxer"
1833 nut_muxer_select="riffenc"
1834 nuv_demuxer_select="riffdec"
1835 ogg_demuxer_select="golomb"
1836 psp_muxer_select="mov_muxer"
1837 rtp_demuxer_select="sdp_demuxer"
1838 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1839 rtsp_demuxer_select="http_protocol rtpdec"
1840 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1841 sap_demuxer_select="sdp_demuxer"
1842 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1843 sdp_demuxer_select="rtpdec"
1844 smoothstreaming_muxer_select="ismv_muxer"
1845 spdif_muxer_select="aac_parser"
1846 tak_demuxer_select="tak_parser"
1847 tg2_muxer_select="mov_muxer"
1848 tgp_muxer_select="mov_muxer"
1849 w64_demuxer_select="wav_demuxer"
1850 wav_demuxer_select="riffdec"
1851 wav_muxer_select="riffenc"
1852 webm_muxer_select="riffenc"
1853 wtv_demuxer_select="riffdec"
1854 xmv_demuxer_select="riffdec"
1855 xwma_demuxer_select="riffdec"
1856
1857 # indevs / outdevs
1858 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1859 alsa_outdev_deps="alsa_asoundlib_h"
1860 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1861 dv1394_indev_deps="dv1394"
1862 dv1394_indev_select="dv_demuxer"
1863 fbdev_indev_deps="linux_fb_h"
1864 jack_indev_deps="jack_jack_h pthreads"
1865 libcdio_indev_deps="libcdio"
1866 libdc1394_indev_deps="libdc1394"
1867 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1868 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1869 pulse_indev_deps="libpulse"
1870 sndio_indev_deps="sndio_h"
1871 sndio_outdev_deps="sndio_h"
1872 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1873 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1874 vfwcap_indev_extralibs="-lavicap32"
1875 x11grab_indev_deps="x11grab XShmCreateImage"
1876
1877 # protocols
1878 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1879 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1880 ffrtmpcrypt_protocol_select="tcp_protocol"
1881 ffrtmphttp_protocol_deps="!librtmp_protocol"
1882 ffrtmphttp_protocol_select="http_protocol"
1883 gopher_protocol_select="network"
1884 httpproxy_protocol_select="tcp_protocol"
1885 http_protocol_select="tcp_protocol"
1886 https_protocol_select="tls_protocol"
1887 librtmp_protocol_deps="librtmp"
1888 librtmpe_protocol_deps="librtmp"
1889 librtmps_protocol_deps="librtmp"
1890 librtmpt_protocol_deps="librtmp"
1891 librtmpte_protocol_deps="librtmp"
1892 mmsh_protocol_select="http_protocol"
1893 mmst_protocol_select="network"
1894 rtmp_protocol_deps="!librtmp_protocol"
1895 rtmp_protocol_select="tcp_protocol"
1896 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1897 rtmps_protocol_deps="!librtmp_protocol"
1898 rtmps_protocol_select="tls_protocol"
1899 rtmpt_protocol_select="ffrtmphttp_protocol"
1900 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1901 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1902 rtp_protocol_select="udp_protocol"
1903 sctp_protocol_deps="struct_sctp_event_subscribe"
1904 sctp_protocol_select="network"
1905 srtp_protocol_select="rtp_protocol"
1906 tcp_protocol_select="network"
1907 tls_protocol_deps_any="openssl gnutls"
1908 tls_protocol_select="tcp_protocol"
1909 udp_protocol_select="network"
1910 unix_protocol_deps="sys_un_h"
1911 unix_protocol_select="network"
1912
1913 # filters
1914 blackframe_filter_deps="gpl"
1915 boxblur_filter_deps="gpl"
1916 cropdetect_filter_deps="gpl"
1917 delogo_filter_deps="gpl"
1918 drawtext_filter_deps="libfreetype"
1919 frei0r_filter_deps="frei0r dlopen strtok_r"
1920 frei0r_filter_extralibs='$ldl'
1921 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1922 frei0r_src_filter_extralibs='$ldl'
1923 hqdn3d_filter_deps="gpl"
1924 interlace_filter_deps="gpl"
1925 resample_filter_deps="avresample"
1926 ocv_filter_deps="libopencv"
1927 scale_filter_deps="swscale"
1928 yadif_filter_deps="gpl"
1929
1930 # libraries
1931 avcodec_deps="avutil"
1932 avdevice_deps="avutil avcodec avformat"
1933 avfilter_deps="avutil"
1934 avformat_deps="avutil avcodec"
1935 avresample_deps="avutil"
1936 swscale_deps="avutil"
1937
1938 # programs
1939 avconv_deps="avcodec avfilter avformat avresample swscale"
1940 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1941 fps_filter null_filter resample_filter scale_filter
1942 setpts_filter trim_filter"
1943 avplay_deps="avcodec avformat avresample swscale sdl"
1944 avplay_select="rdft"
1945 avprobe_deps="avcodec avformat"
1946 avserver_deps="avformat fork !shared"
1947 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1948 avserver_extralibs='$ldl'
1949
1950 doc_deps="texi2html"
1951
1952 # default parameters
1953
1954 logfile="config.log"
1955
1956 # installation paths
1957 prefix_default="/usr/local"
1958 bindir_default='${prefix}/bin'
1959 datadir_default='${prefix}/share/avconv'
1960 docdir_default='${prefix}/share/doc/libav'
1961 incdir_default='${prefix}/include'
1962 libdir_default='${prefix}/lib'
1963 mandir_default='${prefix}/share/man'
1964 shlibdir_default="$libdir_default"
1965
1966 # toolchain
1967 ar_default="ar"
1968 cc_default="gcc"
1969 host_cc_default="gcc"
1970 cp_f="cp -f"
1971 ln_s="ln -s -f"
1972 nm_default="nm -g"
1973 objformat="elf"
1974 pkg_config_default=pkg-config
1975 ranlib="ranlib"
1976 yasmexe="yasm"
1977
1978 nogas=":"
1979
1980 # machine
1981 arch_default=$(uname -m)
1982 cpu="generic"
1983
1984 # OS
1985 target_os_default=$(tolower $(uname -s))
1986 host_os=$target_os_default
1987
1988 # configurable options
1989 enable $LIBRARY_LIST $PROGRAM_LIST
1990
1991 enable asm
1992 enable debug
1993 enable doc
1994 enable optimizations
1995 enable safe_bitstream_reader
1996 enable static
1997 enable swscale_alpha
1998
1999 # By default, enable only those hwaccels that have no external dependencies.
2000 enable dxva2 vdpau
2001
2002 # build settings
2003 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2004 LIBPREF="lib"
2005 LIBSUF=".a"
2006 FULLNAME='$(NAME)$(BUILDSUF)'
2007 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2008 SLIBPREF="lib"
2009 SLIBSUF=".so"
2010 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2011 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2012 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2013 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2014 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2015 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2016
2017 asflags_filter=echo
2018 cflags_filter=echo
2019 ldflags_filter=echo
2020
2021 AS_C='-c'
2022 AS_O='-o $@'
2023 CC_C='-c'
2024 CC_E='-E -o $@'
2025 CC_O='-o $@'
2026 LD_O='-o $@'
2027 LD_LIB='-l%'
2028 LD_PATH='-L'
2029 HOSTCC_C='-c'
2030 HOSTCC_O='-o $@'
2031 HOSTLD_O='-o $@'
2032
2033 host_cflags='-O3 -g'
2034 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2035 host_libs='-lm'
2036 host_cflags_filter=echo
2037 host_ldflags_filter=echo
2038
2039 target_path='$(CURDIR)'
2040
2041 # since the object filename is not given with the -MM flag, the compiler
2042 # is only able to print the basename, and we must add the path ourselves
2043 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2044 DEPFLAGS='-MM'
2045
2046 # find source path
2047 if test -f configure; then
2048 source_path=.
2049 else
2050 source_path=$(cd $(dirname "$0"); pwd)
2051 echo "$source_path" | grep -q '[[:blank:]]' &&
2052 die "Out of tree builds are impossible with whitespace in source path."
2053 test -e "$source_path/config.h" &&
2054 die "Out of tree builds are impossible with config.h in source dir."
2055 fi
2056
2057 for v in "$@"; do
2058 r=${v#*=}
2059 l=${v%"$r"}
2060 r=$(sh_quote "$r")
2061 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2062 done
2063
2064 find_things(){
2065 thing=$1
2066 pattern=$2
2067 file=$source_path/$3
2068 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2069 }
2070
2071 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2072 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2073 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2074 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2075 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2076 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2077 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2078 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2079 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2080 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2081 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2082
2083 ALL_COMPONENTS="
2084 $BSF_LIST
2085 $DECODER_LIST
2086 $DEMUXER_LIST
2087 $ENCODER_LIST
2088 $FILTER_LIST
2089 $HWACCEL_LIST
2090 $INDEV_LIST
2091 $MUXER_LIST
2092 $OUTDEV_LIST
2093 $PARSER_LIST
2094 $PROTOCOL_LIST
2095 "
2096
2097 for n in $COMPONENT_LIST; do
2098 v=$(toupper ${n%s})_LIST
2099 eval enable \$$v
2100 eval ${n}_if_any="\$$v"
2101 done
2102
2103 enable $ARCH_EXT_LIST
2104
2105 die_unknown(){
2106 echo "Unknown option \"$1\"."
2107 echo "See $0 --help for available options."
2108 exit 1
2109 }
2110
2111 print_3_columns() {
2112 cat | tr ' ' '\n' | sort | pr -r -3 -t
2113 }
2114
2115 show_list() {
2116 suffix=_$1
2117 shift
2118 echo $* | sed s/$suffix//g | print_3_columns
2119 exit 0
2120 }
2121
2122 rand_list(){
2123 IFS=', '
2124 set -- $*
2125 unset IFS
2126 for thing; do
2127 comp=${thing%:*}
2128 prob=${thing#$comp}
2129 prob=${prob#:}
2130 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2131 echo "prob ${prob:-0.5}"
2132 printf '%s\n' $comp
2133 done
2134 }
2135
2136 do_random(){
2137 action=$1
2138 shift
2139 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2140 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2141 }
2142
2143 for opt do
2144 optval="${opt#*=}"
2145 case "$opt" in
2146 --extra-ldflags=*)
2147 add_ldflags $optval
2148 ;;
2149 --extra-libs=*)
2150 add_extralibs $optval
2151 ;;
2152 --disable-devices)
2153 disable $INDEV_LIST $OUTDEV_LIST
2154 ;;
2155 --enable-debug=*)
2156 debuglevel="$optval"
2157 ;;
2158 --disable-programs)
2159 disable $PROGRAM_LIST
2160 ;;
2161 --disable-everything)
2162 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2163 ;;
2164 --disable-all)
2165 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2166 disable $LIBRARY_LIST $PROGRAM_LIST doc
2167 ;;
2168 --enable-random|--disable-random)
2169 action=${opt%%-random}
2170 do_random ${action#--} $COMPONENT_LIST
2171 ;;
2172 --enable-random=*|--disable-random=*)
2173 action=${opt%%-random=*}
2174 do_random ${action#--} $optval
2175 ;;
2176 --enable-*=*|--disable-*=*)
2177 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2178 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2179 eval list=\$$(toupper $thing)_LIST
2180 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2181 $action $(filter "$name" $list)
2182 ;;
2183 --enable-?*|--disable-?*)
2184 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2185 if is_in $option $COMPONENT_LIST; then
2186 test $action = disable && action=unset
2187 eval $action \$$(toupper ${option%s})_LIST
2188 elif is_in $option $CMDLINE_SELECT; then
2189 $action $option
2190 else
2191 die_unknown $opt
2192 fi
2193 ;;
2194 --list-*)
2195 NAME="${opt#--list-}"
2196 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2197 NAME=${NAME%s}
2198 eval show_list $NAME \$$(toupper $NAME)_LIST
2199 ;;
2200 --help|-h) show_help
2201 ;;
2202 *)
2203 optname="${opt%%=*}"
2204 optname="${optname#--}"
2205 optname=$(echo "$optname" | sed 's/-/_/g')
2206 if is_in $optname $CMDLINE_SET; then
2207 eval $optname='$optval'
2208 elif is_in $optname $CMDLINE_APPEND; then
2209 append $optname "$optval"
2210 else
2211 die_unknown $opt
2212 fi
2213 ;;
2214 esac
2215 done
2216
2217 disabled logging && logfile=/dev/null
2218
2219 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2220 set >> $logfile
2221
2222 test -n "$cross_prefix" && enable cross_compile
2223
2224 if enabled cross_compile; then
2225 test -n "$arch" && test -n "$target_os" ||
2226 die "Must specify target arch and OS when cross-compiling"
2227 fi
2228
2229 ar_default="${cross_prefix}${ar_default}"
2230 cc_default="${cross_prefix}${cc_default}"
2231 nm_default="${cross_prefix}${nm_default}"
2232 pkg_config_default="${cross_prefix}${pkg_config_default}"
2233 ranlib="${cross_prefix}${ranlib}"
2234
2235 sysinclude_default="${sysroot}/usr/include"
2236
2237 case "$toolchain" in
2238 clang-asan)
2239 cc_default="clang"
2240 add_cflags -fsanitize=address
2241 add_ldflags -fsanitize=address
2242 ;;
2243 clang-tsan)
2244 cc_default="clang"
2245 add_cflags -fsanitize=thread -pie
2246 add_ldflags -fsanitize=thread -pie
2247 ;;
2248 gcc-asan)
2249 cc_default="gcc"
2250 add_cflags -fsanitize=address
2251 add_ldflags -fsanitize=address
2252 ;;
2253 gcc-tsan)
2254 cc_default="gcc"
2255 add_cflags -fsanitize=thread -pie -fPIC
2256 add_ldflags -fsanitize=thread -pie -fPIC
2257 ;;
2258 valgrind-massif)
2259 target_exec_default="valgrind"
2260 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2261 ;;
2262 valgrind-memcheck)
2263 target_exec_default="valgrind"
2264 target_exec_args="--track-origins=yes --leak-check=full"
2265 ;;
2266 msvc)
2267 cc_default="c99wrap cl"
2268 ld_default="c99wrap link"
2269 nm_default="dumpbin -symbols"
2270 ar_default="lib"
2271 target_os_default="win32"
2272 ;;
2273 icl)
2274 cc_default="c99wrap -noconv icl"
2275 ld_default="c99wrap xilink"
2276 nm_default="dumpbin -symbols"
2277 ar_default="xilib"
2278 target_os_default="win32"
2279 ;;
2280 gcov)
2281 add_cflags -fprofile-arcs -ftest-coverage
2282 add_ldflags -fprofile-arcs -ftest-coverage
2283 ;;
2284 ?*)
2285 die "Unknown toolchain $toolchain"
2286 ;;
2287 esac
2288
2289 set_default arch cc pkg_config sysinclude target_exec target_os
2290 enabled cross_compile || host_cc_default=$cc
2291 set_default host_cc
2292
2293 if ! $pkg_config --version >/dev/null 2>&1; then
2294 warn "$pkg_config not found, library detection may fail."
2295 pkg_config=false
2296 fi
2297
2298 exesuf() {
2299 case $1 in
2300 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2301 esac
2302 }
2303
2304 EXESUF=$(exesuf $target_os)
2305 HOSTEXESUF=$(exesuf $host_os)
2306
2307 # set temporary file name
2308 : ${TMPDIR:=$TEMPDIR}
2309 : ${TMPDIR:=$TMP}
2310 : ${TMPDIR:=/tmp}
2311
2312 if ! check_cmd mktemp -u XXXXXX; then
2313 # simple replacement for missing mktemp
2314 # NOT SAFE FOR GENERAL USE
2315 mktemp(){
2316 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2317 }
2318 fi
2319
2320 tmpfile(){
2321 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2322 (set -C; exec > $tmp) 2>/dev/null ||
2323 die "Unable to create temporary file in $TMPDIR."
2324 append TMPFILES $tmp
2325 eval $1=$tmp
2326 }
2327
2328 trap 'rm -f -- $TMPFILES' EXIT
2329
2330 tmpfile TMPASM .asm
2331 tmpfile TMPC .c
2332 tmpfile TMPE $EXESUF
2333 tmpfile TMPH .h
2334 tmpfile TMPO .o
2335 tmpfile TMPS .S
2336 tmpfile TMPSH .sh
2337 tmpfile TMPV .ver
2338
2339 unset -f mktemp
2340
2341 chmod +x $TMPE
2342
2343 # make sure we can execute files in $TMPDIR
2344 cat > $TMPSH 2>> $logfile <<EOF
2345 #! /bin/sh
2346 EOF
2347 chmod +x $TMPSH >> $logfile 2>&1
2348 if ! $TMPSH >> $logfile 2>&1; then
2349 cat <<EOF
2350 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2351 variable to another directory and make sure that it is not mounted noexec.
2352 EOF
2353 die "Sanity test failed."
2354 fi
2355
2356 ccc_flags(){
2357 for flag; do
2358 case $flag in
2359 -std=c99) echo -c99 ;;
2360 -mcpu=*) echo -arch ${flag#*=} ;;
2361 -mieee) echo -ieee ;;
2362 -O*|-fast) echo $flag ;;
2363 -fno-math-errno) echo -assume nomath_errno ;;
2364 -g) echo -g3 ;;
2365 -Wall) echo -msg_enable level2 ;;
2366 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2367 -Wl,*) echo $flag ;;
2368 -f*|-W*) ;;
2369 *) echo $flag ;;
2370 esac
2371 done
2372 }
2373
2374 msvc_common_flags(){
2375 for flag; do
2376 case $flag in
2377 # In addition to specifying certain flags under the compiler
2378 # specific filters, they must be specified here as well or else the
2379 # generic catch all at the bottom will print the original flag.
2380 -Wall) ;;
2381 -std=c99) ;;
2382 # Common flags
2383 -fomit-frame-pointer) ;;
2384 -g) echo -Z7 ;;
2385 -fno-math-errno) ;;
2386 -fno-common) ;;
2387 -fno-signed-zeros) ;;
2388 -fPIC) ;;
2389 -mthumb) ;;
2390 -march=*) ;;
2391 -lz) echo zlib.lib ;;
2392 -lavifil32) echo vfw32.lib ;;
2393 -lavicap32) echo vfw32.lib user32.lib ;;
2394 -l*) echo ${flag#-l}.lib ;;
2395 *) echo $flag ;;
2396 esac
2397 done
2398 }
2399
2400 msvc_flags(){
2401 msvc_common_flags "$@"
2402 for flag; do
2403 case $flag in
2404 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2405 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2406 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2407 -wd4996 -wd4273 ;;
2408 esac
2409 done
2410 }
2411
2412 icl_flags(){
2413 msvc_common_flags "$@"
2414 for flag; do
2415 case $flag in
2416 # Despite what Intel's documentation says -Wall, which is supported
2417 # on Windows, does enable remarks so disable them here.
2418 -Wall) echo $flag -Qdiag-disable:remark ;;
2419 -std=c99) echo -Qstd=c99 ;;
2420 esac
2421 done
2422 }
2423
2424 pgi_flags(){
2425 for flag; do
2426 case $flag in
2427 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2428 -fomit-frame-pointer) echo -Mnoframe ;;
2429 -g) echo -gopt ;;
2430 *) echo $flag ;;
2431 esac
2432 done
2433 }
2434
2435 suncc_flags(){
2436 for flag; do
2437 case $flag in
2438 -march=*|-mcpu=*)
2439 case "${flag#*=}" in
2440 native) echo -xtarget=native ;;
2441 v9|niagara) echo -xarch=sparc ;;
2442 ultrasparc) echo -xarch=sparcvis ;;
2443 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2444 i586|pentium) echo -xchip=pentium ;;
2445 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2446 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2447 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2448 pentium4*) echo -xtarget=pentium4 ;;
2449 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2450 *-sse3) echo -xarch=sse3 ;;
2451 core2) echo -xarch=ssse3 -xchip=core2 ;;
2452 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2453 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2454 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2455 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2456 k8|opteron|athlon64|athlon-fx)
2457 echo -xarch=sse2a ;;
2458 athlon*) echo -xarch=pentium_proa ;;
2459 esac
2460 ;;
2461 -std=c99) echo -xc99 ;;
2462 -fomit-frame-pointer) echo -xregs=frameptr ;;
2463 -fPIC) echo -KPIC -xcode=pic32 ;;
2464 -W*,*) echo $flag ;;
2465 -f*-*|-W*|-mimpure-text) ;;
2466 -shared) echo -G ;;
2467 *) echo $flag ;;
2468 esac
2469 done
2470 }
2471
2472 tms470_flags(){
2473 for flag; do
2474 case $flag in
2475 -march=*|-mcpu=*)
2476 case "${flag#*=}" in
2477 armv7-a|cortex-a*) echo -mv=7a8 ;;
2478 armv7-r|cortex-r*) echo -mv=7r4 ;;
2479 armv7-m|cortex-m*) echo -mv=7m3 ;;
2480 armv6*|arm11*) echo -mv=6 ;;
2481 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2482 echo -mv=5e ;;
2483 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2484 esac
2485 ;;
2486 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2487 -mfpu=vfp) echo --float_support=vfpv2 ;;
2488 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2489 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2490 -msoft-float) echo --float_support=vfplib ;;
2491 -O[0-3]|-mf=*) echo $flag ;;
2492 -g) echo -g -mn ;;
2493 -pds=*) echo $flag ;;
2494 -D*|-I*) echo $flag ;;
2495 --gcc|--abi=*) echo $flag ;;
2496 -me) echo $flag ;;
2497 esac
2498 done
2499 }
2500
2501 probe_cc(){
2502 pfx=$1
2503 _cc=$2
2504
2505 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2506 unset _ld_o _ldflags _ld_lib _ld_path
2507 unset _depflags _DEPCMD _DEPFLAGS
2508 _flags_filter=echo
2509
2510 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2511 _type=llvm_gcc
2512 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2513 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2514 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2515 _cflags_speed='-O3'
2516 _cflags_size='-Os'
2517 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2518 _type=gcc
2519 gcc_version=$($_cc --version | head -n1)
2520 gcc_basever=$($_cc -dumpversion)
2521 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2522 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2523 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2524 if ! $_cc -dumpversion | grep -q '^2\.'; then
2525 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2526 fi
2527 _cflags_speed='-O3'
2528 _cflags_size='-Os'
2529 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2530 _type=icc
2531 _ident=$($_cc --version | head -n1)
2532 _depflags='-MMD'
2533 _cflags_speed='-O3'
2534 _cflags_size='-Os'
2535 _cflags_noopt='-O1'
2536 elif $_cc -v 2>&1 | grep -q xlc; then
2537 _type=xlc
2538 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2539 _cflags_speed='-O5'
2540 _cflags_size='-O5 -qcompact'
2541 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2542 _type=ccc
2543 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2544 _DEPFLAGS='-M'
2545 _cflags_speed='-fast'
2546 _cflags_size='-O1'
2547 _flags_filter=ccc_flags
2548 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2549 test -d "$sysroot" || die "No valid sysroot specified."
2550 _type=armcc
2551 _ident=$($_cc --vsn | head -n1)
2552 armcc_conf="$PWD/armcc.conf"
2553 $_cc --arm_linux_configure \
2554 --arm_linux_config_file="$armcc_conf" \
2555 --configure_sysroot="$sysroot" \
2556 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2557 die "Error creating armcc configuration file."
2558 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2559 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2560 as_default="${cross_prefix}gcc"
2561 _depflags='-MMD'
2562 _cflags_speed='-O3'
2563 _cflags_size='-Os'
2564 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2565 _type=tms470
2566 _ident=$($_cc -version | head -n1 | tr -s ' ')
2567 _flags='--gcc --abi=eabi -me'
2568 _cc_e='-ppl -fe=$@'
2569 _cc_o='-fe=$@'
2570 _depflags='-ppa -ppd=$(@:.o=.d)'
2571 _cflags_speed='-O3 -mf=5'
2572 _cflags_size='-O3 -mf=2'
2573 _flags_filter=tms470_flags
2574 elif $_cc -v 2>&1 | grep -q clang; then
2575 _type=clang
2576 _ident=$($_cc --version | head -n1)
2577 _depflags='-MMD'
2578 _cflags_speed='-O3'
2579 _cflags_size='-Os'
2580 elif $_cc -V 2>&1 | grep -q Sun; then
2581 _type=suncc
2582 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2583 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2584 _DEPFLAGS='-xM1 -xc99'
2585 _ldflags='-std=c99'
2586 _cflags_speed='-O5'
2587 _cflags_size='-O5 -xspace'
2588 _flags_filter=suncc_flags
2589 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2590 _type=pathscale
2591 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2592 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2593 _cflags_speed='-O2'
2594 _cflags_size='-Os'
2595 _flags_filter='filter_out -Wdisabled-optimization'
2596 elif $_cc -v 2>&1 | grep -q Open64; then
2597 _type=open64
2598 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2599 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2600 _cflags_speed='-O2'
2601 _cflags_size='-Os'
2602 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2603 elif $_cc -V 2>&1 | grep -q Portland; then
2604 _type=pgi
2605 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2606 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2607 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2608 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2609 _cflags_noopt="-O1"
2610 _flags_filter=pgi_flags
2611 elif $_cc 2>&1 | grep -q Microsoft; then
2612 _type=msvc
2613 _ident=$($cc 2>&1 | head -n1)
2614 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2615 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2616 _cflags_speed="-O2"
2617 _cflags_size="-O1"
2618 # Nonstandard output options, to avoid msys path conversion issues.
2619 # Relies on wrapper to remap it.
2620 if $_cc 2>&1 | grep -q Linker; then
2621 _ld_o='-out $@'
2622 else
2623 _ld_o='-Fe$@'
2624 fi
2625 _cc_o='-Fo $@'
2626 _cc_e='-P -Fi $@'
2627 _flags_filter=msvc_flags
2628 _ld_lib='lib%.a'
2629 _ld_path='-libpath:'
2630 _flags='-nologo'
2631 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2632 if [ $pfx = hostcc ]; then
2633 append _cflags -Dsnprintf=_snprintf
2634 fi
2635 elif $_cc 2>&1 | grep -q Intel; then
2636 _type=icl
2637 _ident=$($cc 2>&1 | head -n1)
2638 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2639 # Not only is O3 broken on 13.x+ but it is slower on all previous
2640 # versions (tested) as well.
2641 _cflags_speed="-O2"
2642 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2643 # Nonstandard output options, to avoid msys path conversion issues.
2644 # Relies on wrapper to remap it.
2645 if $_cc 2>&1 | grep -q Linker; then
2646 _ld_o='-out $@'
2647 else
2648 _ld_o='-Fe$@'
2649 fi
2650 _cc_o='-Fo $@'
2651 _cc_e='-P'
2652 _flags_filter=icl_flags
2653 _ld_lib='lib%.a'
2654 _ld_path='-libpath:'
2655 # -Qdiag-error to make icl error when seeing certain unknown arguments
2656 _flags='-nologo -Qdiag-error:4044,10157'
2657 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2658 # with MSVC which enables it by default.
2659 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2660 if [ $pfx = hostcc ]; then
2661 append _cflags -Dsnprintf=_snprintf
2662 fi
2663 fi
2664
2665 eval ${pfx}_type=\$_type
2666 eval ${pfx}_ident=\$_ident
2667 }
2668
2669 set_ccvars(){
2670 eval ${1}_C=\${_cc_c-\${${1}_C}}
2671 eval ${1}_E=\${_cc_e-\${${1}_E}}
2672 eval ${1}_O=\${_cc_o-\${${1}_O}}
2673
2674 if [ -n "$_depflags" ]; then
2675 eval ${1}_DEPFLAGS=\$_depflags
2676 else
2677 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2678 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2679 eval DEP${1}FLAGS=\$_flags
2680 fi
2681 }
2682
2683 probe_cc cc "$cc"
2684 cflags_filter=$_flags_filter
2685 cflags_speed=$_cflags_speed
2686 cflags_size=$_cflags_size
2687 cflags_noopt=$_cflags_noopt
2688 add_cflags $_flags $_cflags
2689 cc_ldflags=$_ldflags
2690 set_ccvars CC
2691
2692 probe_cc hostcc "$host_cc"
2693 host_cflags_filter=$_flags_filter
2694 add_host_cflags $_flags $_cflags
2695 set_ccvars HOSTCC
2696
2697 test -n "$cc_type" && enable $cc_type ||
2698 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2699
2700 : ${as_default:=$cc}
2701 : ${dep_cc_default:=$cc}
2702 : ${ld_default:=$cc}
2703 : ${host_ld_default:=$host_cc}
2704 set_default ar as dep_cc ld host_ld
2705
2706 probe_cc as "$as"
2707 asflags_filter=$_flags_filter
2708 add_asflags $_flags $_cflags
2709 set_ccvars AS
2710
2711 probe_cc ld "$ld"
2712 ldflags_filter=$_flags_filter
2713 add_ldflags $_flags $_ldflags
2714 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2715 LD_O=${_ld_o-$LD_O}
2716 LD_LIB=${_ld_lib-$LD_LIB}
2717 LD_PATH=${_ld_path-$LD_PATH}
2718
2719 probe_cc hostld "$host_ld"
2720 host_ldflags_filter=$_flags_filter
2721 add_host_ldflags $_flags $_ldflags
2722 HOSTLD_O=${_ld_o-$HOSTLD_O}
2723
2724 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2725 probe_cc depcc "$dep_cc"
2726 CCDEP=${_DEPCMD:-$DEPCMD}
2727 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2728 DEPCCFLAGS=$_flags
2729 fi
2730
2731 if $ar 2>&1 | grep -q Microsoft; then
2732 arflags="-nologo"
2733 ar_o='-out:$@'
2734 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2735 arflags="rq"
2736 ar_o='$@'
2737 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2738 arflags='-Xany -r -c'
2739 ar_o='$@'
2740 else
2741 arflags="rc"
2742 ar_o='$@'
2743 fi
2744
2745 add_cflags $extra_cflags
2746 add_asflags $extra_cflags
2747
2748 if test -n "$sysroot"; then
2749 case "$cc_type" in
2750 gcc|llvm_gcc|clang)
2751 add_cppflags --sysroot="$sysroot"
2752 add_ldflags --sysroot="$sysroot"
2753 ;;
2754 tms470)
2755 add_cppflags -I"$sysinclude"
2756 add_ldflags --sysroot="$sysroot"
2757 ;;
2758 esac
2759 fi
2760
2761 if test "$cpu" = host; then
2762 enabled cross_compile &&
2763 die "--cpu=host makes no sense when cross-compiling."
2764
2765 case "$cc_type" in
2766 gcc|llvm_gcc)
2767 check_native(){
2768 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2769 sed -n "/cc1.*$1=/{
2770 s/.*$1=\\([^ ]*\\).*/\\1/
2771 p
2772 q
2773 }" $TMPE
2774 }
2775 cpu=$(check_native -march || check_native -mcpu)
2776 ;;
2777 esac
2778
2779 test "${cpu:-host}" = host &&
2780 die "--cpu=host not supported with compiler $cc"
2781 fi
2782
2783 # Deal with common $arch aliases
2784 case "$arch" in
2785 aarch64|arm64)
2786 arch="aarch64"
2787 ;;
2788 arm*)
2789 arch="arm"
2790 ;;
2791 mips*|IP*)
2792 arch="mips"
2793 ;;
2794 parisc*|hppa*)
2795 arch="parisc"
2796 ;;
2797 "Power Macintosh"|ppc*|powerpc*)
2798 arch="ppc"
2799 ;;
2800 s390|s390x)
2801 arch="s390"
2802 ;;
2803 sh4|sh)
2804 arch="sh4"
2805 ;;
2806 sun4u|sparc*)
2807 arch="sparc"
2808 ;;
2809 tilegx|tile-gx)
2810 arch="tilegx"
2811 ;;
2812 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2813 arch="x86"
2814 ;;
2815 esac
2816
2817 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2818 enable $arch
2819
2820 # Add processor-specific flags
2821 if enabled aarch64; then
2822
2823 case $cpu in
2824 armv*)
2825 cpuflags="-march=$cpu"
2826 ;;
2827 *)
2828 cpuflags="-mcpu=$cpu"
2829 ;;
2830 esac
2831
2832 elif enabled alpha; then
2833
2834 cpuflags="-mcpu=$cpu"
2835
2836 elif enabled arm; then
2837
2838 check_arm_arch() {
2839 check_cpp_condition stddef.h \
2840 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2841 $cpuflags
2842 }
2843
2844 probe_arm_arch() {
2845 if check_arm_arch 4; then echo armv4;
2846 elif check_arm_arch 4T; then echo armv4t;
2847 elif check_arm_arch 5; then echo armv5;
2848 elif check_arm_arch 5E; then echo armv5e;
2849 elif check_arm_arch 5T; then echo armv5t;
2850 elif check_arm_arch 5TE; then echo armv5te;
2851 elif check_arm_arch 5TEJ; then echo armv5te;
2852 elif check_arm_arch 6; then echo armv6;
2853 elif check_arm_arch 6J; then echo armv6j;
2854 elif check_arm_arch 6K; then echo armv6k;
2855 elif check_arm_arch 6Z; then echo armv6z;
2856 elif check_arm_arch 6ZK; then echo armv6zk;
2857 elif check_arm_arch 6T2; then echo armv6t2;
2858 elif check_arm_arch 7; then echo armv7;
2859 elif check_arm_arch 7A 7_A; then echo armv7-a;
2860 elif check_arm_arch 7R 7_R; then echo armv7-r;
2861 elif check_arm_arch 7M 7_M; then echo armv7-m;
2862 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2863 elif check_arm_arch 8A 8_A; then echo armv8-a;
2864 fi
2865 }
2866
2867 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2868
2869 case $cpu in
2870 armv*)
2871 cpuflags="-march=$cpu"
2872 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2873 ;;
2874 *)
2875 cpuflags="-mcpu=$cpu"
2876 case $cpu in
2877 cortex-a*) subarch=armv7a ;;
2878 cortex-r*) subarch=armv7r ;;
2879 cortex-m*) enable thumb; subarch=armv7m ;;
2880 arm11*) subarch=armv6 ;;
2881 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2882 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2883 *) subarch=$(probe_arm_arch) ;;
2884 esac
2885 ;;
2886 esac
2887
2888 case "$subarch" in
2889 armv5t*) enable fast_clz ;;
2890 armv[6-8]*) enable fast_clz fast_unaligned ;;
2891 esac
2892
2893 elif enabled avr32; then
2894
2895 case $cpu in
2896 ap7[02]0[0-2])
2897 subarch="avr32_ap"
2898 cpuflags="-mpart=$cpu"
2899 ;;
2900 ap)
2901 subarch="avr32_ap"
2902 cpuflags="-march=$cpu"
2903 ;;
2904 uc3[ab]*)
2905 subarch="avr32_uc"
2906 cpuflags="-mcpu=$cpu"
2907 ;;
2908 uc)
2909 subarch="avr32_uc"
2910 cpuflags="-march=$cpu"
2911 ;;
2912 esac
2913
2914 elif enabled bfin; then
2915
2916 cpuflags="-mcpu=$cpu"
2917
2918 elif enabled mips; then
2919
2920 cpuflags="-march=$cpu"
2921
2922 elif enabled ppc; then
2923
2924 case $(tolower $cpu) in
2925 601|ppc601|powerpc601)
2926 cpuflags="-mcpu=601"
2927 disable altivec
2928 ;;
2929 603*|ppc603*|powerpc603*)
2930 cpuflags="-mcpu=603"
2931 disable altivec
2932 ;;
2933 604*|ppc604*|powerpc604*)
2934 cpuflags="-mcpu=604"
2935 disable altivec
2936 ;;
2937 g3|75*|ppc75*|powerpc75*)
2938 cpuflags="-mcpu=750"
2939 disable altivec
2940 ;;
2941 g4|745*|ppc745*|powerpc745*)
2942 cpuflags="-mcpu=7450"
2943 ;;
2944 74*|ppc74*|powerpc74*)
2945 cpuflags="-mcpu=7400"
2946 ;;
2947 g5|970|ppc970|powerpc970)
2948 cpuflags="-mcpu=970"
2949 ;;
2950 power[3-7]*)
2951 cpuflags="-mcpu=$cpu"
2952 ;;
2953 cell)
2954 cpuflags="-mcpu=cell"
2955 enable ldbrx
2956 ;;
2957 e500mc)
2958 cpuflags="-mcpu=e500mc"
2959 disable altivec
2960 ;;
2961 e500v2)
2962 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2963 disable altivec
2964 ;;
2965 e500)
2966 cpuflags="-mcpu=8540 -mhard-float"
2967 disable altivec
2968 ;;
2969 esac
2970
2971 elif enabled sparc; then
2972
2973 case $cpu in
2974 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2975 cpuflags="-mcpu=$cpu"
2976 disable vis
2977 ;;
2978 ultrasparc*|niagara[234])
2979 cpuflags="-mcpu=$cpu"
2980 ;;
2981 esac
2982
2983 elif enabled x86; then
2984
2985 case $cpu in
2986 i[345]86|pentium)
2987 cpuflags="-march=$cpu"
2988 disable mmx
2989 ;;
2990 # targets that do NOT support nopl and conditional mov (cmov)
2991 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2992 cpuflags="-march=$cpu"
2993 disable i686
2994 ;;
2995 # targets that do support nopl and conditional mov (cmov)
2996 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2997 cpuflags="-march=$cpu"
2998 enable i686
2999 enable fast_cmov
3000 ;;
3001 # targets that do support conditional mov but on which it's slow
3002 pentium4|pentium4m|prescott|nocona)
3003 cpuflags="-march=$cpu"
3004 enable i686
3005 disable fast_cmov
3006 ;;
3007 esac
3008
3009 fi
3010
3011 if [ "$cpu" != generic ]; then
3012 add_cflags $cpuflags
3013 add_asflags $cpuflags
3014 fi
3015
3016 # compiler sanity check
3017 check_exec <<EOF
3018 int main(void){ return 0; }
3019 EOF
3020 if test "$?" != 0; then
3021 echo "$cc is unable to create an executable file."
3022 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3023 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3024 echo "Only do this if you know what cross compiling means."
3025 fi
3026 die "C compiler test failed."
3027 fi
3028
3029 add_cppflags -D_ISOC99_SOURCE
3030 check_cflags -std=c99
3031 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3032 #include <stdlib.h>
3033 EOF
3034 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3035 #include <stdlib.h>
3036 EOF
3037
3038 check_host_cflags -std=c99
3039 check_host_cflags -Wall
3040
3041 check_64bit(){
3042 arch32=$1
3043 arch64=$2
3044 expr=$3
3045 check_code cc "" "int test[2*($expr) - 1]" &&
3046 subarch=$arch64 || subarch=$arch32
3047 }
3048
3049 case "$arch" in
3050 aarch64|alpha|ia64)
3051 spic=$shared
3052 ;;
3053 mips)
3054 check_64bit mips mips64 '_MIPS_SIM > 1'
3055 spic=$shared
3056 ;;
3057 parisc)
3058 check_64bit parisc parisc64 'sizeof(void *) > 4'
3059 spic=$shared
3060 ;;
3061 ppc)
3062 check_64bit ppc ppc64 'sizeof(void *) > 4'
3063 spic=$shared
3064 ;;
3065 sparc)
3066 check_64bit sparc sparc64 'sizeof(void *) > 4'
3067 spic=$shared
3068 ;;
3069 x86)
3070 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3071 if test "$subarch" = "x86_64"; then
3072 spic=$shared
3073 fi
3074 ;;
3075 esac
3076
3077 enable $subarch
3078 enabled spic && enable_weak pic
3079
3080 # OS specific
3081 case $target_os in
3082 aix)
3083 SHFLAGS=-shared
3084 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3085 enabled shared && add_ldflags -Wl,-brtl
3086 ;;
3087 haiku)
3088 prefix_default="/boot/common"
3089 network_extralibs="-lnetwork"
3090 host_libs=
3091 ;;
3092 sunos)
3093 SHFLAGS='-shared -Wl,-h,$$(@F)'
3094 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3095 network_extralibs="-lsocket -lnsl"
3096 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3097 # When using suncc to build, the Solaris linker will mark
3098 # an executable with each instruction set encountered by
3099 # the Solaris assembler. As our libraries contain their own
3100 # guards for processor-specific code, instead suppress
3101 # generation of the HWCAPS ELF section on Solaris x86 only.
3102 enabled_all suncc x86 &&
3103 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3104 add_ldflags -Wl,-M,mapfile
3105 nm_default='nm -P -g'
3106 ;;
3107 netbsd)
3108 disable symver
3109 oss_indev_extralibs="-lossaudio"
3110 oss_outdev_extralibs="-lossaudio"
3111 ;;
3112 openbsd|bitrig)
3113 disable symver
3114 SHFLAGS='-shared'
3115 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3116 SLIB_INSTALL_LINKS=
3117 oss_indev_extralibs="-lossaudio"
3118 oss_outdev_extralibs="-lossaudio"
3119 ;;
3120 dragonfly)
3121 disable symver
3122 ;;
3123 freebsd)
3124 ;;
3125 bsd/os)
3126 add_extralibs -lpoll -lgnugetopt
3127 ;;
3128 darwin)
3129 gas="gas-preprocessor.pl $cc"
3130 enabled ppc && add_asflags -force_cpusubtype_ALL
3131 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3132 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3133 add_ldflags -Wl,-dynamic,-search_paths_first
3134 SLIBSUF=".dylib"
3135 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3136 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3137 objformat="macho"
3138 enabled x86_64 && objformat="macho64"
3139 enabled_any pic shared ||
3140 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3141 ;;
3142 mingw32*)
3143 if test $target_os = "mingw32ce"; then
3144 disable network
3145 else
3146 target_os=mingw32
3147 fi
3148 LIBTARGET=i386
3149 if enabled x86_64; then
3150 LIBTARGET="i386:x86-64"
3151 elif enabled arm; then
3152 LIBTARGET=arm-wince
3153 fi
3154 check_ldflags -Wl,--nxcompat
3155 check_ldflags -Wl,--dynamicbase
3156 shlibdir_default="$bindir_default"
3157 SLIBPREF=""
3158 SLIBSUF=".dll"
3159 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3160 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3161 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3162 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3163 SLIB_INSTALL_LINKS=
3164 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3165 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3166 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3167 objformat="win32"
3168 dlltool="${cross_prefix}dlltool"
3169 ranlib=:
3170 enable dos_paths
3171 ;;
3172 win32|win64)
3173 if enabled shared; then
3174 # Link to the import library instead of the normal static library
3175 # for shared libs.
3176 LD_LIB='%.lib'
3177 # Cannot build shared and static libs at the same time with MSVC.
3178 disable static
3179 fi
3180 shlibdir_default="$bindir_default"
3181 SLIBPREF=""
3182 SLIBSUF=".dll"
3183 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3184 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3185 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3186 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3187 SLIB_INSTALL_LINKS=
3188 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3189 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3190 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3191 objformat="win32"
3192 ranlib=:
3193 enable dos_paths
3194 ;;
3195 cygwin*)
3196 target_os=cygwin
3197 shlibdir_default="$bindir_default"
3198 SLIBPREF="cyg"
3199 SLIBSUF=".dll"
3200 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3201 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3202 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3203 SLIB_INSTALL_LINKS=
3204 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3205 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3206 objformat="win32"
3207 enable dos_paths
3208 ;;
3209 *-dos|freedos|opendos)
3210 network_extralibs="-lsocket"
3211 objformat="coff"
3212 enable dos_paths
3213 add_cppflags -U__STRICT_ANSI__
3214 ;;
3215 linux)
3216 enable dv1394
3217 ;;
3218 irix*)
3219 target_os=irix
3220 ranlib="echo ignoring ranlib"
3221 ;;
3222 os/2*)
3223 ln_s="cp -f"
3224 objformat="aout"
3225 add_cppflags -D_GNU_SOURCE
3226 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3227 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3228 LIBSUF="_s.a"
3229 SLIBPREF=""
3230 SLIBSUF=".dll"
3231 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3232 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3233 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3234 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3235 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3236 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3237 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3238 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3239 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3240 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3241 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3242 enable dos_paths
3243 ;;
3244 gnu/kfreebsd)
3245 add_cppflags -D_BSD_SOURCE
3246 ;;
3247 gnu)
3248 ;;
3249 qnx)
3250 add_cppflags -D_QNX_SOURCE
3251 network_extralibs="-lsocket"
3252 ;;
3253 symbian)
3254 SLIBSUF=".dll"
3255 enable dos_paths
3256 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3257 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3258 add_ldflags -Wl,--target1-abs,--no-undefined \
3259 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3260 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3261 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3262 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3263 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3264 ;;
3265 osf1)
3266 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3267 ;;
3268 minix)
3269 ;;
3270 plan9)
3271 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3272 -D_REENTRANT_SOURCE \
3273 -D_RESEARCH_SOURCE \
3274 -DFD_SETSIZE=96 \
3275 -DHAVE_SOCK_OPTS
3276 add_compat strtod.o strtod=avpriv_strtod
3277 network_extralibs='-lbsd'
3278 exeobjs=compat/plan9/main.o
3279 disable avserver
3280 cp_f='cp'
3281 ;;
3282 none)
3283 ;;
3284 *)
3285 die "Unknown OS '$target_os'."
3286 ;;
3287 esac
3288
3289 # determine libc flavour
3290
3291 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3292 if check_cpp_condition features.h "defined __UCLIBC__"; then
3293 libc_type=uclibc
3294 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3295 elif check_cpp_condition features.h "defined __GLIBC__"; then
3296 libc_type=glibc
3297 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3298 # MinGW headers can be installed on Cygwin, so check for newlib first.
3299 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3300 libc_type=newlib
3301 add_cppflags -U__STRICT_ANSI__
3302 elif check_header _mingw.h; then
3303 libc_type=mingw
3304 check_cpp_condition _mingw.h \
3305 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3306 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3307 die "ERROR: MinGW runtime version must be >= 3.15."
3308 add_cppflags -U__STRICT_ANSI__
3309 elif check_func_headers stdlib.h _get_doserrno; then
3310 libc_type=msvcrt
3311 add_compat strtod.o strtod=avpriv_strtod
3312 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3313 _snprintf=avpriv_snprintf \
3314 vsnprintf=avpriv_vsnprintf
3315 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3316 # 0x601 by default unless something else is set by the user.
3317 # This can easily lead to us detecting functions only present
3318 # in such new versions and producing binaries requiring windows 7.0.
3319 # Therefore explicitly set the default to XP unless the user has
3320 # set something else on the command line.
3321 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3322 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3323 libc_type=klibc
3324 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3325 libc_type=bionic
3326 add_compat strtod.o strtod=avpriv_strtod
3327 fi
3328
3329 test -n "$libc_type" && enable $libc_type
3330
3331 # hacks for compiler/libc/os combinations
3332
3333 if enabled_all tms470 glibc; then
3334 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3335 add_cppflags -D__USER_LABEL_PREFIX__=
3336 add_cppflags -D__builtin_memset=memset
3337 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3338 add_cflags -pds=48 # incompatible redefinition of macro
3339 fi
3340
3341 if enabled_all ccc glibc; then
3342 add_ldflags -Wl,-z,now # calls to libots crash without this
3343 fi
3344
3345 esc(){
3346 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3347 }
3348
3349 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3350
3351 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3352
3353 set_default $PATHS_LIST
3354 set_default nm
3355
3356 # we need to build at least one lib type
3357 if ! enabled_any static shared; then
3358 cat <<EOF
3359 At least one library type must be built.
3360 Specify --enable-static to build the static libraries or --enable-shared to
3361 build the shared libraries as well. To only build the shared libraries specify
3362 --disable-static in addition to --enable-shared.
3363 EOF
3364 exit 1;
3365 fi
3366
3367 die_license_disabled() {
3368 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3369 }
3370
3371 die_license_disabled gpl libcdio
3372 die_license_disabled gpl libx264
3373 die_license_disabled gpl libxavs
3374 die_license_disabled gpl libxvid
3375 die_license_disabled gpl x11grab
3376
3377 die_license_disabled nonfree libfaac
3378 die_license_disabled nonfree libfdk_aac
3379 die_license_disabled nonfree openssl
3380
3381 die_license_disabled version3 libopencore_amrnb
3382 die_license_disabled version3 libopencore_amrwb
3383 die_license_disabled version3 libvo_aacenc
3384 die_license_disabled version3 libvo_amrwbenc
3385
3386 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3387
3388 disabled optimizations || check_cflags -fomit-frame-pointer
3389
3390 enable_weak_pic() {
3391 disabled pic && return
3392 enable pic
3393 add_cppflags -DPIC
3394 case "$target_os" in
3395 mingw*|cygwin*)
3396 ;;
3397 *)
3398 add_cflags -fPIC
3399 ;;
3400 esac
3401 add_asflags -fPIC
3402 }
3403
3404 enabled pic && enable_weak_pic
3405
3406 check_cc <<EOF || die "Symbol mangling check failed."
3407 int ff_extern;
3408 EOF
3409 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3410 extern_prefix=${sym%%ff_extern*}
3411
3412 check_cc <<EOF && enable_weak inline_asm
3413 void foo(void) { __asm__ volatile ("" ::); }
3414 EOF
3415
3416 _restrict=
3417 for restrict_keyword in restrict __restrict__ __restrict; do
3418 check_cc <<EOF && _restrict=$restrict_keyword && break
3419 void foo(char * $restrict_keyword p);
3420 EOF
3421 done
3422
3423 check_cc <<EOF && enable pragma_deprecated
3424 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3425 EOF
3426
3427 check_cc <<EOF && enable attribute_packed
3428 struct { int x; } __attribute__((packed)) x;
3429 EOF
3430
3431 check_cc <<EOF && enable attribute_may_alias
3432 union { int x; } __attribute__((may_alias)) x;
3433 EOF
3434
3435 check_cc <<EOF || die "endian test failed"
3436 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3437 EOF
3438 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3439
3440 check_inline_asm inline_asm_labels '"1:\n"'
3441
3442 if enabled alpha; then
3443
3444 check_cflags -mieee
3445
3446 elif enabled arm; then
3447
3448 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3449 enabled thumb && check_cflags -mthumb || check_cflags -marm
3450 nogas=die
3451
3452 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3453 enable vfp_args
3454 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3455 case "${cross_prefix:-$cc}" in
3456 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3457 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3458 __asm__ (".eabi_attribute 28, 1");
3459 int main(void) { return 0; }
3460 EOF
3461 esac
3462 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3463 fi
3464
3465 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3466 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3467 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3468 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3469 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3470 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3471
3472 [ $target_os = linux ] ||
3473 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3474 $ARCH_EXT_LIST_ARM
3475
3476 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3477 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3478
3479 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3480
3481 elif enabled mips; then
3482
3483 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3484
3485 elif enabled parisc; then
3486
3487 if enabled gcc; then
3488 case $($cc -dumpversion) in
3489 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3490 esac
3491 fi
3492
3493 elif enabled ppc; then
3494
3495 enable local_aligned_8 local_aligned_16
3496
3497 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3498 check_inline_asm ibm_asm '"add 0, 0, 0"'
3499 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3500 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3501
3502 # AltiVec flags: The FSF version of GCC differs from the Apple version
3503 if enabled altivec; then
3504 nogas=warn
3505 check_cflags -maltivec -mabi=altivec &&
3506 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3507 check_cflags -faltivec
3508
3509 # check if our compiler supports Motorola AltiVec C API
3510 check_cc <<EOF || disable altivec
3511 $inc_altivec_h
3512 int main(void) {
3513 vector signed int v1 = (vector signed int) { 0 };
3514 vector signed int v2 = (vector signed int) { 1 };
3515 v1 = vec_add(v1, v2);
3516 return 0;
3517 }
3518 EOF
3519
3520 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3521 fi
3522
3523 elif enabled sparc; then
3524
3525 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3526
3527 elif enabled x86; then
3528
3529 check_builtin rdtsc intrin.h "__rdtsc()"
3530 check_builtin mm_empty mmintrin.h "_mm_empty()"
3531
3532 enable local_aligned_8 local_aligned_16
3533
3534 # check whether EBP is available on x86
3535 # As 'i' is stored on the stack, this program will crash
3536 # if the base pointer is used to access it because the
3537 # base pointer is cleared in the inline assembly code.
3538 check_exec_crash <<EOF && enable ebp_available
3539 volatile int i=0;
3540 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3541 return i;
3542 EOF
3543
3544 # check whether EBX is available on x86
3545 check_inline_asm ebx_available '""::"b"(0)' &&
3546 check_inline_asm ebx_available '"":::"%ebx"'
3547
3548 # check whether xmm clobbers are supported
3549 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3550
3551 # check whether binutils is new enough to compile SSSE3/MMXEXT
3552 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3553 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3554
3555 if ! disabled_any asm mmx yasm; then
3556 if check_cmd $yasmexe --version; then
3557 enabled x86_64 && yasm_extra="-m amd64"
3558 yasm_debug="-g dwarf2"
3559 elif check_cmd nasm -v; then
3560 yasmexe=nasm
3561 yasm_debug="-g -F dwarf"
3562 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3563 fi
3564
3565 YASMFLAGS="-f $objformat $yasm_extra"
3566 enabled pic && append YASMFLAGS "-DPIC"
3567 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3568 case "$objformat" in
3569 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3570 esac
3571
3572 check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3573 die "yasm not found, use --disable-yasm for a crippled build"
3574 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3575 check_yasm "CPU amdnop" && enable cpunop
3576 fi
3577
3578 case "$cpu" in
3579 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3580 disable fast_clz
3581 ;;
3582 esac
3583
3584 fi
3585
3586 if enabled asm; then
3587 as=${gas:=$as}
3588 check_as <<EOF && enable gnu_as || \
3589 $nogas "GNU assembler not found, install gas-preprocessor"
3590 .macro m n
3591 \n: .int 0
3592 .endm
3593 m x
3594 EOF
3595 fi
3596
3597 check_ldflags -Wl,--as-needed
3598
3599 if check_func dlopen; then
3600 ldl=
3601 elif check_func dlopen -ldl; then
3602 ldl=-ldl
3603 fi
3604
3605 if ! disabled network; then
3606 check_type "sys/types.h sys/socket.h" socklen_t
3607 check_type netdb.h "struct addrinfo"
3608 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3609 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3610 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3611 check_type netinet/in.h "struct sockaddr_in6"
3612 check_type poll.h "struct pollfd"
3613 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3614 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3615 check_type netinet/sctp.h "struct sctp_event_subscribe"
3616 check_func getaddrinfo $network_extralibs
3617 check_func getservbyport $network_extralibs
3618 # Prefer arpa/inet.h over winsock2
3619 if check_header arpa/inet.h ; then
3620 check_func closesocket
3621 elif check_header winsock2.h ; then
3622 check_func_headers winsock2.h closesocket -lws2 &&
3623 network_extralibs="-lws2" ||
3624 { check_func_headers winsock2.h closesocket -lws2_32 &&
3625 network_extralibs="-lws2_32"; }
3626 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3627 check_type ws2tcpip.h socklen_t
3628 check_type ws2tcpip.h "struct addrinfo"
3629 check_type ws2tcpip.h "struct group_source_req"
3630 check_type ws2tcpip.h "struct ip_mreq_source"
3631 check_type ws2tcpip.h "struct ipv6_mreq"
3632 check_type winsock2.h "struct pollfd"
3633 check_type ws2tcpip.h "struct sockaddr_in6"
3634 check_type ws2tcpip.h "struct sockaddr_storage"
3635 check_struct winsock2.h "struct sockaddr" sa_len
3636 else
3637 disable network
3638 fi
3639 fi
3640
3641 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3642 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3643
3644 check_func fcntl
3645 check_func fork
3646 check_func_headers stdlib.h getenv
3647 check_func gethrtime
3648 check_func getopt
3649 check_func getrusage
3650 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3651 check_func gettimeofday
3652 check_func inet_aton $network_extralibs
3653 check_func isatty
3654 check_func localtime_r
3655 check_func ${malloc_prefix}memalign && enable memalign
3656 check_func mkstemp
3657 check_func mmap
3658 check_func mprotect
3659 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3660 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3661 check_func setrlimit
3662 check_func strerror_r
3663 check_func strptime
3664 check_func strtok_r
3665 check_func sched_getaffinity
3666 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3667 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3668 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3669 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3670 check_func sysconf
3671 check_func sysctl
3672 check_func usleep
3673 check_func_headers io.h setmode
3674 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3675 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3676 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3677 check_func_headers windows.h GetProcessAffinityMask
3678 check_func_headers windows.h GetProcessTimes
3679 check_func_headers windows.h GetSystemTimeAsFileTime
3680 check_func_headers windows.h MapViewOfFile
3681 check_func_headers windows.h SetConsoleTextAttribute
3682 check_func_headers windows.h Sleep
3683 check_func_headers windows.h VirtualAlloc
3684
3685 check_header direct.h
3686 check_header dlfcn.h
3687 check_header dxva.h
3688 check_header dxva2api.h
3689 check_header io.h
3690 check_header malloc.h
3691 check_header poll.h
3692 check_header sys/mman.h
3693 check_header sys/param.h
3694 check_header sys/resource.h
3695 check_header sys/select.h
3696 check_header sys/time.h
3697 check_header sys/un.h
3698 check_header unistd.h
3699 check_header vdpau/vdpau.h
3700 check_header vdpau/vdpau_x11.h
3701 check_header VideoDecodeAcceleration/VDADecoder.h
3702 check_header windows.h
3703 check_header X11/extensions/XvMClib.h
3704
3705 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3706 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3707
3708 if ! disabled w32threads && ! enabled pthreads; then
3709 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads