avconv: add support for VDPAU decoding
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
96
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
104 --disable-all disable building components, libraries and programs
105
106 Program options:
107 --disable-programs do not build command line programs
108 --disable-avconv disable avconv build
109 --disable-avplay disable avplay build
110 --disable-avprobe disable avprobe build
111 --disable-avserver disable avserver build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-avdevice disable libavdevice build
116 --disable-avcodec disable libavcodec build
117 --disable-avformat disable libavformat build
118 --disable-avutil disable libavutil build
119 --disable-swscale disable libswscale build
120 --disable-avfilter disable video filter support [no]
121 --disable-avresample disable libavresample build [no]
122 --disable-pthreads disable pthreads [auto]
123 --disable-w32threads disable Win32 threads [auto]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-error-resilience disable error resilience code
127 --disable-lsp disable LSP code
128 --disable-lzo disable LZO decoder code
129 --disable-mdct disable MDCT code
130 --disable-rdft disable RDFT code
131 --disable-fft disable FFT code
132
133 Hardware accelerators:
134 --enable-dxva2 enable DXVA2 code
135 --enable-vaapi enable VAAPI code
136 --enable-vda enable VDA code
137 --enable-vdpau enable VDPAU code
138
139 Individual component options:
140 --disable-everything disable all components listed below
141 --disable-encoder=NAME disable encoder NAME
142 --enable-encoder=NAME enable encoder NAME
143 --disable-encoders disable all encoders
144 --disable-decoder=NAME disable decoder NAME
145 --enable-decoder=NAME enable decoder NAME
146 --disable-decoders disable all decoders
147 --disable-hwaccel=NAME disable hwaccel NAME
148 --enable-hwaccel=NAME enable hwaccel NAME
149 --disable-hwaccels disable all hwaccels
150 --disable-muxer=NAME disable muxer NAME
151 --enable-muxer=NAME enable muxer NAME
152 --disable-muxers disable all muxers
153 --disable-demuxer=NAME disable demuxer NAME
154 --enable-demuxer=NAME enable demuxer NAME
155 --disable-demuxers disable all demuxers
156 --enable-parser=NAME enable parser NAME
157 --disable-parser=NAME disable parser NAME
158 --disable-parsers disable all parsers
159 --enable-bsf=NAME enable bitstream filter NAME
160 --disable-bsf=NAME disable bitstream filter NAME
161 --disable-bsfs disable all bitstream filters
162 --enable-protocol=NAME enable protocol NAME
163 --disable-protocol=NAME disable protocol NAME
164 --disable-protocols disable all protocols
165 --enable-indev=NAME enable input device NAME
166 --disable-indev=NAME disable input device NAME
167 --disable-indevs disable input devices
168 --enable-outdev=NAME enable output device NAME
169 --disable-outdev=NAME disable output device NAME
170 --disable-outdevs disable output devices
171 --disable-devices disable all devices
172 --enable-filter=NAME enable filter NAME
173 --disable-filter=NAME disable filter NAME
174 --disable-filters disable all filters
175
176 External library support:
177 --enable-avisynth enable reading of AviSynth script files [no]
178 --enable-bzlib enable bzlib [autodetect]
179 --enable-frei0r enable frei0r video filtering
180 --enable-gnutls enable gnutls [no]
181 --enable-libcdio enable audio CD grabbing with libcdio
182 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
183 and libraw1394 [no]
184 --enable-libfaac enable AAC encoding via libfaac [no]
185 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
186 --enable-libfreetype enable libfreetype [no]
187 --enable-libgsm enable GSM de/encoding via libgsm [no]
188 --enable-libilbc enable iLBC de/encoding via libilbc [no]
189 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
190 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192 --enable-libopencv enable video filtering via libopencv [no]
193 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
194 --enable-libopus enable Opus decoding via libopus [no]
195 --enable-libpulse enable Pulseaudio input via libpulse [no]
196 --enable-librtmp enable RTMP[E] support via librtmp [no]
197 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
198 --enable-libspeex enable Speex de/encoding via libspeex [no]
199 --enable-libtheora enable Theora encoding via libtheora [no]
200 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
201 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
202 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
203 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
204 --enable-libwavpack enable wavpack encoding via libwavpack [no]
205 --enable-libx264 enable H.264 encoding via x264 [no]
206 --enable-libxavs enable AVS encoding via xavs [no]
207 --enable-libxvid enable Xvid encoding via xvidcore,
208 native MPEG-4/Xvid encoder exists [no]
209 --enable-openssl enable openssl [no]
210 --enable-x11grab enable X11 grabbing [no]
211 --enable-zlib enable zlib [autodetect]
212
213 Advanced options (experts only):
214 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
215 --enable-cross-compile assume a cross-compiler is used
216 --sysroot=PATH root of cross-build tree
217 --sysinclude=PATH location of cross-build system headers
218 --target-os=OS compiler targets OS [$target_os]
219 --target-exec=CMD command to run executables on target
220 --target-path=DIR path to view of build directory on target
221 --target-samples=DIR path to samples directory on target
222 --toolchain=NAME set tool defaults according to NAME
223 --nm=NM use nm tool
224 --ar=AR use archive tool AR [$ar_default]
225 --as=AS use assembler AS [$as_default]
226 --cc=CC use C compiler CC [$cc_default]
227 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
228 --ld=LD use linker LD
229 --host-cc=HOSTCC use host C compiler HOSTCC
230 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
231 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
232 --host-ld=HOSTLD use host linker HOSTLD
233 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
234 --host-libs=HLIBS use libs HLIBS when linking for host
235 --host-os=OS compiler host OS [$target_os]
236 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
237 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
238 --extra-libs=ELIBS add ELIBS [$ELIBS]
239 --extra-version=STRING version string suffix []
240 --optflags=OPTFLAGS override optimization-related compiler flags
241 --build-suffix=SUFFIX library name suffix []
242 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
243 --arch=ARCH select architecture [$arch]
244 --cpu=CPU select the minimum required CPU (affects
245 instruction selection, may crash on older CPUs)
246 --enable-pic build position-independent code
247 --enable-sram allow use of on-chip SRAM
248 --enable-thumb compile for Thumb instruction set
249 --disable-symver disable symbol versioning
250 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251 --disable-safe-bitstream-reader
252 disable buffer boundary checking in bitreaders
253 (faster, but may crash)
254 --enable-memalign-hack emulate memalign, interferes with memory debuggers
255 --enable-lto use link-time optimization
256
257 Optimization options (experts only):
258 --disable-asm disable all assembler optimizations
259 --disable-altivec disable AltiVec optimizations
260 --disable-amd3dnow disable 3DNow! optimizations
261 --disable-amd3dnowext disable 3DNow! extended optimizations
262 --disable-mmx disable MMX optimizations
263 --disable-mmxext disable MMXEXT optimizations
264 --disable-sse disable SSE optimizations
265 --disable-sse2 disable SSE2 optimizations
266 --disable-sse3 disable SSE3 optimizations
267 --disable-ssse3 disable SSSE3 optimizations
268 --disable-sse4 disable SSE4 optimizations
269 --disable-sse42 disable SSE4.2 optimizations
270 --disable-avx disable AVX optimizations
271 --disable-fma4 disable FMA4 optimizations
272 --disable-avx2 disable AVX2 optimizations
273 --disable-armv5te disable armv5te optimizations
274 --disable-armv6 disable armv6 optimizations
275 --disable-armv6t2 disable armv6t2 optimizations
276 --disable-vfp disable VFP optimizations
277 --disable-neon disable NEON optimizations
278 --disable-vis disable VIS optimizations
279 --disable-inline-asm disable use of inline assembler
280 --disable-yasm disable use of yasm assembler
281
282 Developer options (useful when working on Libav itself):
283 --disable-debug disable debugging symbols
284 --enable-debug=LEVEL set the debug level [$debuglevel]
285 --disable-optimizations disable compiler optimizations
286 --enable-extra-warnings enable more compiler warnings
287 --samples=PATH location of test samples for FATE, if not set use
288 \$LIBAV_SAMPLES at make invocation time.
289 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
290 should be used only for debugging purposes)
291 --enable-random randomly enable/disable components
292 --disable-random
293 --enable-random=LIST randomly enable/disable specific components or
294 --disable-random=LIST component groups. LIST is a comma-separated list
295 of NAME[:PROB] entries where NAME is a component
296 (group) and PROB the probability associated with
297 NAME (default 0.5).
298 --random-seed=VALUE seed value for --enable/disable-random
299
300 NOTE: Object files are built at the place where configure is launched.
301 EOF
302 exit 0
303 }
304
305 quotes='""'
306
307 log(){
308 echo "$@" >> $logfile
309 }
310
311 log_file(){
312 log BEGIN $1
313 pr -n -t $1 >> $logfile
314 log END $1
315 }
316
317 echolog(){
318 log "$@"
319 echo "$@"
320 }
321
322 warn(){
323 log "WARNING: $*"
324 WARNINGS="${WARNINGS}WARNING: $*\n"
325 }
326
327 die(){
328 echolog "$@"
329 cat <<EOF
330
331 If you think configure made a mistake, make sure you are using the latest
332 version from Git. If the latest version fails, report the problem to the
333 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
334 EOF
335 if disabled logging; then
336 cat <<EOF
337 Rerun configure with logging enabled (do not use --disable-logging), and
338 include the log this produces with your report.
339 EOF
340 else
341 cat <<EOF
342 Include the log file "$logfile" produced by configure as this will help
343 solving the problem.
344 EOF
345 fi
346 exit 1
347 }
348
349 # Avoid locale weirdness, besides we really just want to translate ASCII.
350 toupper(){
351 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
352 }
353
354 tolower(){
355 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
356 }
357
358 c_escape(){
359 echo "$*" | sed 's/["\\]/\\\0/g'
360 }
361
362 sh_quote(){
363 v=$(echo "$1" | sed "s/'/'\\\\''/g")
364 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
365 echo "$v"
366 }
367
368 cleanws(){
369 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
370 }
371
372 filter(){
373 pat=$1
374 shift
375 for v; do
376 eval "case $v in $pat) echo $v ;; esac"
377 done
378 }
379
380 filter_out(){
381 pat=$1
382 shift
383 for v; do
384 eval "case $v in $pat) ;; *) echo $v ;; esac"
385 done
386 }
387
388 map(){
389 m=$1
390 shift
391 for v; do eval $m; done
392 }
393
394 add_suffix(){
395 suffix=$1
396 shift
397 for v; do echo ${v}${suffix}; done
398 }
399
400 set_all(){
401 value=$1
402 shift
403 for var in $*; do
404 eval $var=$value
405 done
406 }
407
408 set_weak(){
409 value=$1
410 shift
411 for var; do
412 eval : \${$var:=$value}
413 done
414 }
415
416 sanitize_var_name(){
417 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
418 }
419
420 set_safe(){
421 var=$1
422 shift
423 eval $(sanitize_var_name "$var")='$*'
424 }
425
426 get_safe(){
427 eval echo \$$(sanitize_var_name "$1")
428 }
429
430 pushvar(){
431 for pvar in $*; do
432 eval level=\${${pvar}_level:=0}
433 eval ${pvar}_${level}="\$$pvar"
434 eval ${pvar}_level=$(($level+1))
435 done
436 }
437
438 popvar(){
439 for pvar in $*; do
440 eval level=\${${pvar}_level:-0}
441 test $level = 0 && continue
442 eval level=$(($level-1))
443 eval $pvar="\${${pvar}_${level}}"
444 eval ${pvar}_level=$level
445 eval unset ${pvar}_${level}
446 done
447 }
448
449 enable(){
450 set_all yes $*
451 }
452
453 disable(){
454 set_all no $*
455 }
456
457 enable_weak(){
458 set_weak yes $*
459 }
460
461 disable_weak(){
462 set_weak no $*
463 }
464
465 enable_safe(){
466 for var; do
467 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
468 done
469 }
470
471 disable_safe(){
472 for var; do
473 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474 done
475 }
476
477 do_enable_deep(){
478 for var; do
479 enabled $var && continue
480 eval sel="\$${var}_select"
481 eval sgs="\$${var}_suggest"
482 pushvar var sgs
483 enable_deep $sel
484 popvar sgs
485 enable_deep_weak $sgs
486 popvar var
487 done
488 }
489
490 enable_deep(){
491 do_enable_deep $*
492 enable $*
493 }
494
495 enable_deep_weak(){
496 for var; do
497 disabled $var && continue
498 pushvar var
499 do_enable_deep $var
500 popvar var
501 enable_weak $var
502 done
503 }
504
505 enabled(){
506 test "${1#!}" = "$1" && op== || op=!=
507 eval test "x\$${1#!}" $op "xyes"
508 }
509
510 disabled(){
511 test "${1#!}" = "$1" && op== || op=!=
512 eval test "x\$${1#!}" $op "xno"
513 }
514
515 enabled_all(){
516 for opt; do
517 enabled $opt || return 1
518 done
519 }
520
521 disabled_all(){
522 for opt; do
523 disabled $opt || return 1
524 done
525 }
526
527 enabled_any(){
528 for opt; do
529 enabled $opt && return 0
530 done
531 }
532
533 disabled_any(){
534 for opt; do
535 disabled $opt && return 0
536 done
537 return 1
538 }
539
540 set_default(){
541 for opt; do
542 eval : \${$opt:=\$${opt}_default}
543 done
544 }
545
546 is_in(){
547 value=$1
548 shift
549 for var in $*; do
550 [ $var = $value ] && return 0
551 done
552 return 1
553 }
554
555 do_check_deps(){
556 for cfg; do
557 cfg="${cfg#!}"
558 enabled ${cfg}_checking && die "Circular dependency for $cfg."
559 disabled ${cfg}_checking && continue
560 enable ${cfg}_checking
561 append allopts $cfg
562
563 eval dep_all="\$${cfg}_deps"
564 eval dep_any="\$${cfg}_deps_any"
565 eval dep_sel="\$${cfg}_select"
566 eval dep_sgs="\$${cfg}_suggest"
567 eval dep_ifa="\$${cfg}_if"
568 eval dep_ifn="\$${cfg}_if_any"
569
570 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
571 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
572 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
573
574 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
575 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
576 enabled_all $dep_all || disable $cfg
577 enabled_any $dep_any || disable $cfg
578 disabled_any $dep_sel && disable $cfg
579
580 if enabled $cfg; then
581 enable_deep $dep_sel
582 enable_deep_weak $dep_sgs
583 fi
584
585 disable ${cfg}_checking
586 done
587 }
588
589 check_deps(){
590 unset allopts
591
592 do_check_deps "$@"
593
594 for cfg in $allopts; do
595 enabled $cfg || continue
596 eval dep_extralibs="\$${cfg}_extralibs"
597 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
598 done
599 }
600
601 print_config(){
602 pfx=$1
603 files=$2
604 shift 2
605 map 'eval echo "$v \${$v:-no}"' "$@" |
606 awk "BEGIN { split(\"$files\", files) }
607 {
608 c = \"$pfx\" toupper(\$1);
609 v = \$2;
610 sub(/yes/, 1, v);
611 sub(/no/, 0, v);
612 for (f in files) {
613 file = files[f];
614 if (file ~ /\\.h\$/) {
615 printf(\"#define %s %d\\n\", c, v) >>file;
616 } else if (file ~ /\\.asm\$/) {
617 printf(\"%%define %s %d\\n\", c, v) >>file;
618 } else if (file ~ /\\.mak\$/) {
619 n = -v ? \"\" : \"!\";
620 printf(\"%s%s=yes\\n\", n, c) >>file;
621 }
622 }
623 }"
624 }
625
626 print_enabled(){
627 suf=$1
628 shift
629 for v; do
630 enabled $v && printf "%s\n" ${v%$suf};
631 done
632 }
633
634 append(){
635 var=$1
636 shift
637 eval "$var=\"\$$var $*\""
638 }
639
640 prepend(){
641 var=$1
642 shift
643 eval "$var=\"$* \$$var\""
644 }
645
646 add_cppflags(){
647 append CPPFLAGS "$@"
648 }
649
650 add_cflags(){
651 append CFLAGS $($cflags_filter "$@")
652 }
653
654 add_asflags(){
655 append ASFLAGS $($asflags_filter "$@")
656 }
657
658 add_ldflags(){
659 append LDFLAGS $($ldflags_filter "$@")
660 }
661
662 add_extralibs(){
663 prepend extralibs $($ldflags_filter "$@")
664 }
665
666 add_host_cppflags(){
667 append host_cppflags "$@"
668 }
669
670 add_host_cflags(){
671 append host_cflags $($host_cflags_filter "$@")
672 }
673
674 add_host_ldflags(){
675 append host_ldflags $($host_ldflags_filter "$@")
676 }
677
678 add_compat(){
679 append compat_objs $1
680 shift
681 map 'add_cppflags -D$v' "$@"
682 }
683
684 check_cmd(){
685 log "$@"
686 "$@" >> $logfile 2>&1
687 }
688
689 cc_o(){
690 eval printf '%s\\n' $CC_O
691 }
692
693 cc_e(){
694 eval printf '%s\\n' $CC_E
695 }
696
697 check_cc(){
698 log check_cc "$@"
699 cat > $TMPC
700 log_file $TMPC
701 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
702 }
703
704 check_cpp(){
705 log check_cpp "$@"
706 cat > $TMPC
707 log_file $TMPC
708 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
709 }
710
711 as_o(){
712 eval printf '%s\\n' $AS_O
713 }
714
715 check_as(){
716 log check_as "$@"
717 cat > $TMPS
718 log_file $TMPS
719 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
720 }
721
722 check_inline_asm(){
723 log check_inline_asm "$@"
724 name="$1"
725 code="$2"
726 shift 2
727 disable $name
728 check_cc "$@" <<EOF && enable $name
729 void foo(void){ __asm__ volatile($code); }
730 EOF
731 }
732
733 check_insn(){
734 log check_insn "$@"
735 check_inline_asm ${1}_inline "\"$2\""
736 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
737 }
738
739 check_yasm(){
740 log check_yasm "$@"
741 echo "$1" > $TMPS
742 log_file $TMPS
743 shift 1
744 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
745 }
746
747 ld_o(){
748 eval printf '%s\\n' $LD_O
749 }
750
751 check_ld(){
752 log check_ld "$@"
753 flags=$(filter_out '-l*' "$@")
754 libs=$(filter '-l*' "$@")
755 check_cc $($cflags_filter $flags) || return
756 flags=$($ldflags_filter $flags)
757 libs=$($ldflags_filter $libs)
758 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
759 }
760
761 check_code(){
762 log check_code "$@"
763 check=$1
764 headers=$2
765 code=$3
766 shift 3
767 {
768 for hdr in $headers; do
769 echo "#include <$hdr>"
770 done
771 echo "int main(void) { $code; return 0; }"
772 } | check_$check "$@"
773 }
774
775 check_cppflags(){
776 log check_cppflags "$@"
777 check_cc "$@" <<EOF && append CPPFLAGS "$@"
778 int x;
779 EOF
780 }
781
782 test_cflags(){
783 log test_cflags "$@"
784 set -- $($cflags_filter "$@")
785 check_cc "$@" <<EOF
786 int x;
787 EOF
788 }
789
790 check_cflags(){
791 log check_cflags "$@"
792 test_cflags "$@" && add_cflags "$@"
793 }
794
795 test_ldflags(){
796 log test_ldflags "$@"
797 check_ld "$@" <<EOF
798 int main(void){ return 0; }
799 EOF
800 }
801
802 check_ldflags(){
803 log check_ldflags "$@"
804 test_ldflags "$@" && add_ldflags "$@"
805 }
806
807 check_header(){
808 log check_header "$@"
809 header=$1
810 shift
811 disable_safe $header
812 check_cpp "$@" <<EOF && enable_safe $header
813 #include <$header>
814 int x;
815 EOF
816 }
817
818 check_func(){
819 log check_func "$@"
820 func=$1
821 shift
822 disable $func
823 check_ld "$@" <<EOF && enable $func
824 extern int $func();
825 int main(void){ $func(); }
826 EOF
827 }
828
829 check_mathfunc(){
830 log check_mathfunc "$@"
831 func=$1
832 narg=$2
833 shift 2
834 test $narg = 2 && args="f, g" || args="f"
835 disable $func
836 check_ld "$@" <<EOF && enable $func
837 #include <math.h>
838 float foo(float f, float g) { return $func($args); }
839 int main(void){ return 0; }
840 EOF
841 }
842
843 check_func_headers(){
844 log check_func_headers "$@"
845 headers=$1
846 funcs=$2
847 shift 2
848 {
849 for hdr in $headers; do
850 echo "#include <$hdr>"
851 done
852 for func in $funcs; do
853 echo "long check_$func(void) { return (long) $func; }"
854 done
855 echo "int main(void) { return 0; }"
856 } | check_ld "$@" && enable $funcs && enable_safe $headers
857 }
858
859 check_cpp_condition(){
860 log check_cpp_condition "$@"
861 header=$1
862 condition=$2
863 shift 2
864 check_cpp "$@" <<EOF
865 #include <$header>
866 #if !($condition)
867 #error "unsatisfied condition: $condition"
868 #endif
869 EOF
870 }
871
872 check_lib(){
873 log check_lib "$@"
874 header="$1"
875 func="$2"
876 shift 2
877 check_header $header && check_func $func "$@" && add_extralibs "$@"
878 }
879
880 check_lib2(){
881 log check_lib2 "$@"
882 headers="$1"
883 funcs="$2"
884 shift 2
885 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
886 }
887
888 check_pkg_config(){
889 log check_pkg_config "$@"
890 pkg="$1"
891 headers="$2"
892 funcs="$3"
893 shift 3
894 check_cmd $pkg_config --exists --print-errors $pkg || return
895 pkg_cflags=$($pkg_config --cflags $pkg)
896 pkg_libs=$($pkg_config --libs $pkg)
897 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
898 set_safe ${pkg}_cflags $pkg_cflags &&
899 set_safe ${pkg}_libs $pkg_libs
900 }
901
902 check_exec(){
903 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
904 }
905
906 check_exec_crash(){
907 code=$(cat)
908
909 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
910 # are safe but may not be available everywhere. Thus we use
911 # raise(SIGTERM) instead. The check is run in a subshell so we
912 # can redirect the "Terminated" message from the shell. SIGBUS
913 # is not defined by standard C so it is used conditionally.
914
915 (check_exec "$@") >> $logfile 2>&1 <<EOF
916 #include <signal.h>
917 static void sighandler(int sig){
918 raise(SIGTERM);
919 }
920 int foo(void){
921 $code
922 }
923 int (*func_ptr)(void) = foo;
924 int main(void){
925 signal(SIGILL, sighandler);
926 signal(SIGFPE, sighandler);
927 signal(SIGSEGV, sighandler);
928 #ifdef SIGBUS
929 signal(SIGBUS, sighandler);
930 #endif
931 return func_ptr();
932 }
933 EOF
934 }
935
936 check_type(){
937 log check_type "$@"
938 headers=$1
939 type=$2
940 shift 2
941 disable_safe "$type"
942 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
943 }
944
945 check_struct(){
946 log check_struct "$@"
947 headers=$1
948 struct=$2
949 member=$3
950 shift 3
951 disable_safe "${struct}_${member}"
952 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
953 enable_safe "${struct}_${member}"
954 }
955
956 check_builtin(){
957 log check_builtin "$@"
958 name=$1
959 headers=$2
960 builtin=$3
961 shift 3
962 disable "$name"
963 check_code ld "$headers" "$builtin" "$@" && enable "$name"
964 }
965
966 require(){
967 name="$1"
968 header="$2"
969 func="$3"
970 shift 3
971 check_lib $header $func "$@" || die "ERROR: $name not found"
972 }
973
974 require2(){
975 name="$1"
976 headers="$2"
977 func="$3"
978 shift 3
979 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
980 }
981
982 require_pkg_config(){
983 pkg="$1"
984 check_pkg_config "$@" || die "ERROR: $pkg not found"
985 add_cflags $(get_safe ${pkg}_cflags)
986 add_extralibs $(get_safe ${pkg}_libs)
987 }
988
989 hostcc_o(){
990 eval printf '%s\\n' $HOSTCC_O
991 }
992
993 check_host_cc(){
994 log check_host_cc "$@"
995 cat > $TMPC
996 log_file $TMPC
997 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
998 }
999
1000 check_host_cppflags(){
1001 log check_host_cppflags "$@"
1002 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1003 int x;
1004 EOF
1005 }
1006
1007 check_host_cflags(){
1008 log check_host_cflags "$@"
1009 set -- $($host_cflags_filter "$@")
1010 check_host_cc "$@" <<EOF && append host_cflags "$@"
1011 int x;
1012 EOF
1013 }
1014
1015 apply(){
1016 file=$1
1017 shift
1018 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1019 }
1020
1021 cp_if_changed(){
1022 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1023 mkdir -p "$(dirname $2)"
1024 $cp_f "$1" "$2"
1025 }
1026
1027 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1028 # system-dependent things.
1029
1030 COMPONENT_LIST="
1031 bsfs
1032 decoders
1033 demuxers
1034 encoders
1035 filters
1036 hwaccels
1037 indevs
1038 muxers
1039 outdevs
1040 parsers
1041 protocols
1042 "
1043
1044 EXTERNAL_LIBRARY_LIST="
1045 avisynth
1046 bzlib
1047 frei0r
1048 gnutls
1049 libcdio
1050 libdc1394
1051 libfaac
1052 libfdk_aac
1053 libfreetype
1054 libgsm
1055 libilbc
1056 libmp3lame
1057 libopencore_amrnb
1058 libopencore_amrwb
1059 libopencv
1060 libopenjpeg
1061 libopus
1062 libpulse
1063 librtmp
1064 libschroedinger
1065 libspeex
1066 libtheora
1067 libvo_aacenc
1068 libvo_amrwbenc
1069 libvorbis
1070 libvpx
1071 libwavpack
1072 libx264
1073 libxavs
1074 libxvid
1075 openssl
1076 x11grab
1077 zlib
1078 "
1079
1080 HWACCEL_LIST="
1081 dxva2
1082 vaapi
1083 vda
1084 vdpau
1085 "
1086 LIBRARY_LIST="
1087 avcodec
1088 avdevice
1089 avfilter
1090 avformat
1091 avresample
1092 avutil
1093 swscale
1094 "
1095
1096 PROGRAM_LIST="
1097 avconv
1098 avplay
1099 avprobe
1100 avserver
1101 "
1102
1103 CONFIG_LIST="
1104 $COMPONENT_LIST
1105 $EXTERNAL_LIBRARY_LIST
1106 $HWACCEL_LIST
1107 $LIBRARY_LIST
1108 $PROGRAM_LIST
1109 dct
1110 doc
1111 error_resilience
1112 fft
1113 gpl
1114 gray
1115 hardcoded_tables
1116 lsp
1117 lzo
1118 mdct
1119 memalign_hack
1120 network
1121 nonfree
1122 pic
1123 rdft
1124 runtime_cpudetect
1125 safe_bitstream_reader
1126 shared
1127 small
1128 sram
1129 static
1130 swscale_alpha
1131 thumb
1132 version3
1133 xmm_clobber_test
1134 "
1135
1136 THREADS_LIST='
1137 pthreads
1138 w32threads
1139 '
1140
1141 ATOMICS_LIST='
1142 atomics_gcc
1143 atomics_suncc
1144 atomics_win32
1145 '
1146
1147 ARCH_LIST='
1148 aarch64
1149 alpha
1150 arm
1151 avr32
1152 avr32_ap
1153 avr32_uc
1154 bfin
1155 ia64
1156 m68k
1157 mips
1158 mips64
1159 parisc
1160 ppc
1161 ppc64
1162 s390
1163 sh4
1164 sparc
1165 sparc64
1166 tilegx
1167 tilepro
1168 tomi
1169 x86
1170 x86_32
1171 x86_64
1172 '
1173
1174 ARCH_EXT_LIST_ARM='
1175 armv5te
1176 armv6
1177 armv6t2
1178 neon
1179 vfp
1180 vfpv3
1181 '
1182
1183 ARCH_EXT_LIST_X86='
1184 amd3dnow
1185 amd3dnowext
1186 avx
1187 avx2
1188 fma4
1189 i686
1190 mmx
1191 mmxext
1192 sse
1193 sse2
1194 sse3
1195 sse4
1196 sse42
1197 ssse3
1198 '
1199
1200 ARCH_EXT_LIST="
1201 $ARCH_EXT_LIST_ARM
1202 $ARCH_EXT_LIST_X86
1203 altivec
1204 ppc4xx
1205 vis
1206 "
1207
1208 HAVE_LIST_CMDLINE='
1209 inline_asm
1210 symver
1211 yasm
1212 '
1213
1214 HAVE_LIST_PUB='
1215 bigendian
1216 fast_unaligned
1217 '
1218
1219 MATH_FUNCS="
1220 atanf
1221 atan2f
1222 cbrtf
1223 cosf
1224 exp2
1225 exp2f
1226 expf
1227 isinf
1228 isnan
1229 ldexpf
1230 llrint
1231 llrintf
1232 log2
1233 log2f
1234 log10f
1235 lrint
1236 lrintf
1237 powf
1238 rint
1239 round
1240 roundf
1241 sinf
1242 trunc
1243 truncf
1244 "
1245
1246 HAVE_LIST="
1247 $ARCH_EXT_LIST
1248 $(add_suffix _external $ARCH_EXT_LIST)
1249 $(add_suffix _inline $ARCH_EXT_LIST)
1250 $HAVE_LIST_CMDLINE
1251 $HAVE_LIST_PUB
1252 $THREADS_LIST
1253 $ATOMICS_LIST
1254 $MATH_FUNCS
1255 aligned_malloc
1256 aligned_stack
1257 alsa_asoundlib_h
1258 altivec_h
1259 arpa_inet_h
1260 asm_mod_q
1261 asm_mod_y
1262 atomic_cas_ptr
1263 atomics_native
1264 attribute_may_alias
1265 attribute_packed
1266 cdio_paranoia_h
1267 cdio_paranoia_paranoia_h
1268 closesocket
1269 CommandLineToArgvW
1270 cpunop
1271 CryptGenRandom
1272 dcbzl
1273 dev_bktr_ioctl_bt848_h
1274 dev_bktr_ioctl_meteor_h
1275 dev_ic_bt8xx_h
1276 dev_video_bktr_ioctl_bt848_h
1277 dev_video_meteor_ioctl_meteor_h
1278 direct_h
1279 dlfcn_h
1280 dlopen
1281 dos_paths
1282 dxva_h
1283 ebp_available
1284 ebx_available
1285 fast_64bit
1286 fast_clz
1287 fast_cmov
1288 fcntl
1289 fork
1290 getaddrinfo
1291 gethrtime
1292 getopt
1293 GetProcessAffinityMask
1294 GetProcessMemoryInfo
1295 GetProcessTimes
1296 GetSystemTimeAsFileTime
1297 getrusage
1298 getservbyport
1299 gettimeofday
1300 gnu_as
1301 gsm_h
1302 ibm_asm
1303 inet_aton
1304 io_h
1305 inline_asm_labels
1306 isatty
1307 jack_port_get_latency_range
1308 ldbrx
1309 libdc1394_1
1310 libdc1394_2
1311 local_aligned_16
1312 local_aligned_8
1313 localtime_r
1314 loongson
1315 machine_ioctl_bt848_h
1316 machine_ioctl_meteor_h
1317 machine_rw_barrier
1318 malloc_h
1319 MapViewOfFile
1320 memalign
1321 MemoryBarrier
1322 mkstemp
1323 mm_empty
1324 mmap
1325 mprotect
1326 msvcrt
1327 nanosleep
1328 poll_h
1329 posix_memalign
1330 pragma_deprecated
1331 rdtsc
1332 sched_getaffinity
1333 sdl
1334 SetConsoleTextAttribute
1335 setmode
1336 setrlimit
1337 Sleep
1338 sndio_h
1339 socklen_t
1340 soundcard_h
1341 strerror_r
1342 strptime
1343 strtok_r
1344 struct_addrinfo
1345 struct_group_source_req
1346 struct_ip_mreq_source
1347 struct_ipv6_mreq
1348 struct_pollfd
1349 struct_rusage_ru_maxrss
1350 struct_sockaddr_in6
1351 struct_sockaddr_sa_len
1352 struct_sockaddr_storage
1353 struct_v4l2_frmivalenum_discrete
1354 symver_asm_label
1355 symver_gnu_asm
1356 sync_val_compare_and_swap
1357 sysconf
1358 sysctl
1359 sys_mman_h
1360 sys_param_h
1361 sys_resource_h
1362 sys_select_h
1363 sys_soundcard_h
1364 sys_time_h
1365 sys_un_h
1366 sys_videoio_h
1367 threads
1368 unistd_h
1369 usleep
1370 vdpau_x11
1371 vfp_args
1372 VirtualAlloc
1373 windows_h
1374 winsock2_h
1375 xform_asm
1376 xlib
1377 xmm_clobbers
1378 "
1379
1380 # options emitted with CONFIG_ prefix but not available on the command line
1381 CONFIG_EXTRA="
1382 aandcttables
1383 ac3dsp
1384 audio_frame_queue
1385 dsputil
1386 gcrypt
1387 golomb
1388 gplv3
1389 h263dsp
1390 h264chroma
1391 h264dsp
1392 h264pred
1393 h264qpel
1394 hpeldsp
1395 huffman
1396 lgplv3
1397 lpc
1398 mpegaudio
1399 mpegaudiodsp
1400 mpegvideo
1401 mpegvideoenc
1402 nettle
1403 rangecoder
1404 riffdec
1405 riffenc
1406 rtpdec
1407 rtpenc_chain
1408 sinewin
1409 videodsp
1410 vp3dsp
1411 "
1412
1413 CMDLINE_SELECT="
1414 $ARCH_EXT_LIST
1415 $CONFIG_LIST
1416 $HAVE_LIST_CMDLINE
1417 $THREADS_LIST
1418 asm
1419 cross_compile
1420 debug
1421 extra_warnings
1422 logging
1423 lto
1424 optimizations
1425 "
1426
1427 PATHS_LIST='
1428 bindir
1429 datadir
1430 docdir
1431 incdir
1432 libdir
1433 mandir
1434 prefix
1435 shlibdir
1436 '
1437
1438 CMDLINE_SET="
1439 $PATHS_LIST
1440 ar
1441 arch
1442 as
1443 build_suffix
1444 cc
1445 cpu
1446 cross_prefix
1447 dep_cc
1448 extra_version
1449 host_cc
1450 host_cflags
1451 host_ld
1452 host_ldflags
1453 host_libs
1454 host_os
1455 ld
1456 logfile
1457 malloc_prefix
1458 nm
1459 optflags
1460 pkg_config
1461 random_seed
1462 samples
1463 sysinclude
1464 sysroot
1465 target_exec
1466 target_os
1467 target_path
1468 target_samples
1469 toolchain
1470 "
1471
1472 CMDLINE_APPEND="
1473 extra_cflags
1474 host_cppflags
1475 "
1476
1477 # code dependency declarations
1478
1479 # architecture extensions
1480
1481 armv5te_deps="arm"
1482 armv6_deps="arm"
1483 armv6t2_deps="arm"
1484 neon_deps="arm"
1485 vfp_deps="arm"
1486 vfpv3_deps="vfp"
1487
1488 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1489
1490 altivec_deps="ppc"
1491 ppc4xx_deps="ppc"
1492
1493 vis_deps="sparc"
1494
1495 cpunop_deps="i686"
1496 x86_64_select="i686"
1497 x86_64_suggest="fast_cmov"
1498
1499 amd3dnow_deps="mmx"
1500 amd3dnowext_deps="amd3dnow"
1501 mmx_deps="x86"
1502 mmxext_deps="mmx"
1503 sse_deps="mmxext"
1504 sse2_deps="sse"
1505 sse3_deps="sse2"
1506 ssse3_deps="sse3"
1507 sse4_deps="ssse3"
1508 sse42_deps="sse4"
1509 avx_deps="sse42"
1510 fma4_deps="avx"
1511 avx2_deps="avx"
1512
1513 mmx_external_deps="yasm"
1514 mmx_inline_deps="inline_asm"
1515 mmx_suggest="mmx_external mmx_inline"
1516
1517 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1518 eval dep=\$${ext}_deps
1519 eval ${ext}_external_deps='"${dep}_external"'
1520 eval ${ext}_inline_deps='"${dep}_inline"'
1521 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1522 done
1523
1524 aligned_stack_if_any="ppc x86"
1525 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1526 fast_clz_if_any="alpha avr32 mips ppc x86"
1527 fast_unaligned_if_any="ppc x86"
1528
1529 inline_asm_deps="!tms470"
1530 need_memalign="altivec neon sse"
1531
1532 symver_if_any="symver_asm_label symver_gnu_asm"
1533
1534 log2_deps="!msvcrt"
1535
1536 # subsystems
1537 dct_select="rdft"
1538 error_resilience_select="dsputil"
1539 lpc_select="dsputil"
1540 mdct_select="fft"
1541 rdft_select="fft"
1542 mpegaudio_select="mpegaudiodsp"
1543 mpegaudiodsp_select="dct"
1544 mpegvideo_select="dsputil hpeldsp videodsp"
1545 mpegvideoenc_select="mpegvideo"
1546
1547 # decoders / encoders
1548 aac_decoder_select="mdct sinewin"
1549 aac_encoder_select="audio_frame_queue mdct sinewin"
1550 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1551 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1552 ac3_encoder_select="mdct ac3dsp dsputil"
1553 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1554 aic_decoder_select="dsputil golomb"
1555 alac_encoder_select="lpc"
1556 als_decoder_select="dsputil"
1557 amrnb_decoder_select="lsp"
1558 amrwb_decoder_select="lsp"
1559 amv_decoder_select="dsputil hpeldsp"
1560 ape_decoder_select="dsputil"
1561 asv1_decoder_select="dsputil"
1562 asv1_encoder_select="dsputil"
1563 asv2_decoder_select="dsputil"
1564 asv2_encoder_select="dsputil"
1565 atrac1_decoder_select="mdct sinewin"
1566 atrac3_decoder_select="mdct"
1567 bink_decoder_select="dsputil hpeldsp"
1568 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1569 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1570 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1571 cllc_decoder_select="dsputil"
1572 comfortnoise_encoder_select="lpc"
1573 cook_decoder_select="dsputil mdct sinewin"
1574 cscd_decoder_select="lzo"
1575 cscd_decoder_suggest="zlib"
1576 dca_decoder_select="mdct"
1577 dnxhd_decoder_select="dsputil"
1578 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1579 dvvideo_decoder_select="dsputil"
1580 dvvideo_encoder_select="dsputil"
1581 dxa_decoder_deps="zlib"
1582 eac3_decoder_select="ac3_decoder"
1583 eac3_encoder_select="ac3_encoder"
1584 eamad_decoder_select="aandcttables dsputil mpegvideo"
1585 eatgq_decoder_select="aandcttables dsputil"
1586 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1587 ffv1_decoder_select="dsputil golomb rangecoder"
1588 ffv1_encoder_select="dsputil rangecoder"
1589 ffvhuff_decoder_select="dsputil"
1590 ffvhuff_encoder_select="dsputil huffman"
1591 flac_decoder_select="golomb"
1592 flac_encoder_select="dsputil golomb lpc"
1593 flashsv_decoder_deps="zlib"
1594 flashsv_encoder_deps="zlib"
1595 flashsv2_decoder_deps="zlib"
1596 flv_decoder_select="h263_decoder"
1597 flv_encoder_select="h263_encoder"
1598 fourxm_decoder_select="dsputil"
1599 fraps_decoder_select="dsputil huffman"
1600 g2m_decoder_deps="zlib"
1601 g2m_decoder_select="dsputil"
1602 h261_decoder_select="error_resilience mpegvideo"
1603 h261_encoder_select="aandcttables mpegvideoenc"
1604 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1605 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1606 h263i_decoder_select="h263_decoder"
1607 h263p_encoder_select="h263_encoder"
1608 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1609 h264_decoder_suggest="error_resilience"
1610 hevc_decoder_select="dsputil golomb videodsp"
1611 huffyuv_decoder_select="dsputil"
1612 huffyuv_encoder_select="dsputil huffman"
1613 iac_decoder_select="dsputil fft mdct sinewin"
1614 imc_decoder_select="dsputil fft mdct sinewin"
1615 indeo3_decoder_select="hpeldsp"
1616 interplay_video_decoder_select="hpeldsp"
1617 jpegls_decoder_select="dsputil golomb hpeldsp"
1618 jpegls_encoder_select="golomb"
1619 jv_decoder_select="dsputil"
1620 lagarith_decoder_select="dsputil"
1621 ljpeg_encoder_select="aandcttables mpegvideoenc"
1622 loco_decoder_select="golomb"
1623 mdec_decoder_select="dsputil error_resilience mpegvideo"
1624 metasound_decoder_select="lsp mdct sinewin"
1625 mimic_decoder_select="dsputil hpeldsp"
1626 mjpeg_decoder_select="dsputil hpeldsp"
1627 mjpegb_decoder_select="dsputil hpeldsp"
1628 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1629 mlp_decoder_select="dsputil mlp_parser"
1630 motionpixels_decoder_select="dsputil"
1631 mp1_decoder_select="mpegaudio"
1632 mp1float_decoder_select="mpegaudio"
1633 mp2_decoder_select="mpegaudio"
1634 mp2float_decoder_select="mpegaudio"
1635 mp3_decoder_select="mpegaudio"
1636 mp3adu_decoder_select="mpegaudio"
1637 mp3adufloat_decoder_select="mpegaudio"
1638 mp3float_decoder_select="mpegaudio"
1639 mp3on4_decoder_select="mpegaudio"
1640 mp3on4float_decoder_select="mpegaudio"
1641 mpc7_decoder_select="dsputil mpegaudiodsp"
1642 mpc8_decoder_select="dsputil mpegaudiodsp"
1643 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1644 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1645 mpeg1video_decoder_select="error_resilience mpegvideo"
1646 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1647 mpeg2video_decoder_select="error_resilience mpegvideo"
1648 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1649 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1650 mpeg4_encoder_select="h263_encoder"
1651 msmpeg4v1_decoder_select="h263_decoder"
1652 msmpeg4v2_decoder_select="h263_decoder"
1653 msmpeg4v2_encoder_select="h263_encoder"
1654 msmpeg4v3_decoder_select="h263_decoder"
1655 msmpeg4v3_encoder_select="h263_encoder"
1656 mss2_decoder_select="error_resilience vc1_decoder"
1657 mxpeg_decoder_select="dsputil hpeldsp"
1658 nellymoser_decoder_select="mdct sinewin"
1659 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1660 nuv_decoder_select="dsputil lzo"
1661 png_decoder_deps="zlib"
1662 png_decoder_select="dsputil"
1663 png_encoder_deps="zlib"
1664 png_encoder_select="dsputil"
1665 prores_decoder_select="dsputil"
1666 prores_encoder_select="dsputil"
1667 qcelp_decoder_select="lsp"
1668 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1669 ra_144_encoder_select="audio_frame_queue lpc"
1670 ralf_decoder_select="golomb"
1671 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1672 rv10_encoder_select="h263_encoder"
1673 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1674 rv20_encoder_select="h263_encoder"
1675 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1676 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1677 shorten_decoder_select="golomb"
1678 sipr_decoder_select="lsp"
1679 sp5x_decoder_select="dsputil hpeldsp"
1680 svq1_decoder_select="hpeldsp"
1681 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1682 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1683 svq3_decoder_suggest="error_resilience zlib"
1684 tak_decoder_select="dsputil"
1685 theora_decoder_select="vp3_decoder"
1686 tiff_decoder_suggest="zlib"
1687 tiff_encoder_suggest="zlib"
1688 thp_decoder_select="dsputil hpeldsp"
1689 truehd_decoder_select="mlp_decoder"
1690 truemotion2_decoder_select="dsputil"
1691 truespeech_decoder_select="dsputil"
1692 tscc_decoder_deps="zlib"
1693 twinvq_decoder_select="mdct lsp sinewin"
1694 utvideo_decoder_select="dsputil"
1695 utvideo_encoder_select="dsputil huffman"
1696 vble_decoder_select="dsputil"
1697 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1698 vc1image_decoder_select="vc1_decoder"
1699 vorbis_decoder_select="mdct"
1700 vorbis_encoder_select="mdct"
1701 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1702 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1703 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1704 vp6a_decoder_select="vp6_decoder"
1705 vp6f_decoder_select="vp6_decoder"
1706 vp8_decoder_select="h264pred videodsp"
1707 vp9_decoder_select="videodsp"
1708 webp_decoder_select="vp8_decoder"
1709 wmapro_decoder_select="mdct sinewin"
1710 wmav1_decoder_select="mdct sinewin"
1711 wmav1_encoder_select="mdct sinewin"
1712 wmav2_decoder_select="mdct sinewin"
1713 wmav2_encoder_select="mdct sinewin"
1714 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1715 wmv1_decoder_select="h263_decoder"
1716 wmv1_encoder_select="h263_encoder"
1717 wmv2_decoder_select="h263_decoder videodsp"
1718 wmv2_encoder_select="h263_encoder"
1719 wmv3_decoder_select="vc1_decoder"
1720 wmv3image_decoder_select="wmv3_decoder"
1721 zerocodec_decoder_deps="zlib"
1722 zlib_decoder_deps="zlib"
1723 zlib_encoder_deps="zlib"
1724 zmbv_decoder_deps="zlib"
1725 zmbv_encoder_deps="zlib"
1726
1727 # hardware accelerators
1728 dxva2_deps="dxva2api_h"
1729 vaapi_deps="va_va_h"
1730 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1731 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1732 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1733
1734 h263_vaapi_hwaccel_deps="vaapi"
1735 h263_vaapi_hwaccel_select="h263_decoder"
1736 h263_vdpau_hwaccel_deps="vdpau"
1737 h263_vdpau_hwaccel_select="h263_decoder"
1738 h264_dxva2_hwaccel_deps="dxva2"
1739 h264_dxva2_hwaccel_select="h264_decoder"
1740 h264_vaapi_hwaccel_deps="vaapi"
1741 h264_vaapi_hwaccel_select="h264_decoder"
1742 h264_vda_hwaccel_deps="vda"
1743 h264_vda_hwaccel_select="h264_decoder"
1744 h264_vdpau_hwaccel_deps="vdpau"
1745 h264_vdpau_hwaccel_select="h264_decoder"
1746 mpeg1_vdpau_hwaccel_deps="vdpau"
1747 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1748 mpeg2_dxva2_hwaccel_deps="dxva2"
1749 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1750 mpeg2_vaapi_hwaccel_deps="vaapi"
1751 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1752 mpeg2_vdpau_hwaccel_deps="vdpau"
1753 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1754 mpeg4_vaapi_hwaccel_deps="vaapi"
1755 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1756 mpeg4_vdpau_hwaccel_deps="vdpau"
1757 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1758 vc1_dxva2_hwaccel_deps="dxva2"
1759 vc1_dxva2_hwaccel_select="vc1_decoder"
1760 vc1_vaapi_hwaccel_deps="vaapi"
1761 vc1_vaapi_hwaccel_select="vc1_decoder"
1762 vc1_vdpau_hwaccel_deps="vdpau"
1763 vc1_vdpau_hwaccel_select="vc1_decoder"
1764 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1765 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1766 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1767
1768 # parsers
1769 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1770 mpeg4video_parser_select="error_resilience mpegvideo"
1771 mpegvideo_parser_select="error_resilience mpegvideo"
1772 vc1_parser_select="mpegvideo"
1773
1774 # external libraries
1775 libfaac_encoder_deps="libfaac"
1776 libfaac_encoder_select="audio_frame_queue"
1777 libfdk_aac_decoder_deps="libfdk_aac"
1778 libfdk_aac_encoder_deps="libfdk_aac"
1779 libfdk_aac_encoder_select="audio_frame_queue"
1780 libgsm_decoder_deps="libgsm"
1781 libgsm_encoder_deps="libgsm"
1782 libgsm_ms_decoder_deps="libgsm"
1783 libgsm_ms_encoder_deps="libgsm"
1784 libilbc_decoder_deps="libilbc"
1785 libilbc_encoder_deps="libilbc"
1786 libmp3lame_encoder_deps="libmp3lame"
1787 libmp3lame_encoder_select="audio_frame_queue"
1788 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1789 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1790 libopencore_amrnb_encoder_select="audio_frame_queue"
1791 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1792 libopenjpeg_decoder_deps="libopenjpeg"
1793 libopenjpeg_encoder_deps="libopenjpeg"
1794 libopus_decoder_deps="libopus"
1795 libopus_encoder_deps="libopus"
1796 libopus_encoder_select="audio_frame_queue"
1797 libschroedinger_decoder_deps="libschroedinger"
1798 libschroedinger_encoder_deps="libschroedinger"
1799 libspeex_decoder_deps="libspeex"
1800 libspeex_encoder_deps="libspeex"
1801 libspeex_encoder_select="audio_frame_queue"
1802 libtheora_encoder_deps="libtheora"
1803 libvo_aacenc_encoder_deps="libvo_aacenc"
1804 libvo_aacenc_encoder_select="audio_frame_queue"
1805 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1806 libvorbis_encoder_deps="libvorbis"
1807 libvorbis_encoder_select="audio_frame_queue"
1808 libvpx_vp8_decoder_deps="libvpx"
1809 libvpx_vp8_encoder_deps="libvpx"
1810 libvpx_vp9_decoder_deps="libvpx"
1811 libvpx_vp9_encoder_deps="libvpx"
1812 libwavpack_encoder_deps="libwavpack"
1813 libx264_encoder_deps="libx264"
1814 libxavs_encoder_deps="libxavs"
1815 libxvid_encoder_deps="libxvid"
1816
1817 # demuxers / muxers
1818 ac3_demuxer_select="ac3_parser"
1819 asf_demuxer_select="riffdec"
1820 asf_muxer_select="riffenc"
1821 asf_stream_muxer_select="asf_muxer"
1822 avi_demuxer_select="riffdec"
1823 avi_muxer_select="riffenc"
1824 avisynth_demuxer_deps="avisynth"
1825 avisynth_demuxer_select="riffdec"
1826 caf_demuxer_select="riffdec"
1827 dirac_demuxer_select="dirac_parser"
1828 dxa_demuxer_select="riffdec"
1829 eac3_demuxer_select="ac3_parser"
1830 f4v_muxer_select="mov_muxer"
1831 flac_demuxer_select="flac_parser"
1832 hds_muxer_select="flv_muxer"
1833 hls_muxer_select="mpegts_muxer"
1834 ipod_muxer_select="mov_muxer"
1835 ismv_muxer_select="mov_muxer"
1836 matroska_audio_muxer_select="matroska_muxer"
1837 matroska_demuxer_select="riffdec"
1838 matroska_demuxer_suggest="bzlib lzo zlib"
1839 matroska_muxer_select="riffenc"
1840 mmf_muxer_select="riffenc"
1841 mov_demuxer_select="riffdec"
1842 mov_demuxer_suggest="zlib"
1843 mov_muxer_select="riffenc rtpenc_chain"
1844 mp3_demuxer_select="mpegaudio_parser"
1845 mp4_muxer_select="mov_muxer"
1846 mpegts_muxer_select="adts_muxer latm_muxer"
1847 mpegtsraw_demuxer_select="mpegts_demuxer"
1848 mxf_d10_muxer_select="mxf_muxer"
1849 nut_muxer_select="riffenc"
1850 nuv_demuxer_select="riffdec"
1851 ogg_demuxer_select="golomb"
1852 psp_muxer_select="mov_muxer"
1853 rtp_demuxer_select="sdp_demuxer"
1854 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1855 rtsp_demuxer_select="http_protocol rtpdec"
1856 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1857 sap_demuxer_select="sdp_demuxer"
1858 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1859 sdp_demuxer_select="rtpdec"
1860 smoothstreaming_muxer_select="ismv_muxer"
1861 spdif_muxer_select="aac_parser"
1862 tak_demuxer_select="tak_parser"
1863 tg2_muxer_select="mov_muxer"
1864 tgp_muxer_select="mov_muxer"
1865 w64_demuxer_select="wav_demuxer"
1866 wav_demuxer_select="riffdec"
1867 wav_muxer_select="riffenc"
1868 webm_muxer_select="riffenc"
1869 wtv_demuxer_select="riffdec"
1870 xmv_demuxer_select="riffdec"
1871 xwma_demuxer_select="riffdec"
1872
1873 # indevs / outdevs
1874 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1875 alsa_outdev_deps="alsa_asoundlib_h"
1876 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1877 dv1394_indev_deps="dv1394"
1878 dv1394_indev_select="dv_demuxer"
1879 fbdev_indev_deps="linux_fb_h"
1880 jack_indev_deps="jack_jack_h pthreads"
1881 libcdio_indev_deps="libcdio"
1882 libdc1394_indev_deps="libdc1394"
1883 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1884 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1885 pulse_indev_deps="libpulse"
1886 sndio_indev_deps="sndio_h"
1887 sndio_outdev_deps="sndio_h"
1888 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1889 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1890 vfwcap_indev_extralibs="-lavicap32"
1891 x11grab_indev_deps="x11grab XShmCreateImage"
1892
1893 # protocols
1894 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1895 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1896 ffrtmpcrypt_protocol_select="tcp_protocol"
1897 ffrtmphttp_protocol_deps="!librtmp_protocol"
1898 ffrtmphttp_protocol_select="http_protocol"
1899 gopher_protocol_select="network"
1900 httpproxy_protocol_select="tcp_protocol"
1901 http_protocol_select="tcp_protocol"
1902 https_protocol_select="tls_protocol"
1903 librtmp_protocol_deps="librtmp"
1904 librtmpe_protocol_deps="librtmp"
1905 librtmps_protocol_deps="librtmp"
1906 librtmpt_protocol_deps="librtmp"
1907 librtmpte_protocol_deps="librtmp"
1908 mmsh_protocol_select="http_protocol"
1909 mmst_protocol_select="network"
1910 rtmp_protocol_deps="!librtmp_protocol"
1911 rtmp_protocol_select="tcp_protocol"
1912 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1913 rtmps_protocol_deps="!librtmp_protocol"
1914 rtmps_protocol_select="tls_protocol"
1915 rtmpt_protocol_select="ffrtmphttp_protocol"
1916 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1917 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1918 rtp_protocol_select="udp_protocol"
1919 sctp_protocol_deps="struct_sctp_event_subscribe"
1920 sctp_protocol_select="network"
1921 srtp_protocol_select="rtp_protocol"
1922 tcp_protocol_select="network"
1923 tls_protocol_deps_any="openssl gnutls"
1924 tls_protocol_select="tcp_protocol"
1925 udp_protocol_select="network"
1926 unix_protocol_deps="sys_un_h"
1927 unix_protocol_select="network"
1928
1929 # filters
1930 blackframe_filter_deps="gpl"
1931 boxblur_filter_deps="gpl"
1932 cropdetect_filter_deps="gpl"
1933 delogo_filter_deps="gpl"
1934 drawtext_filter_deps="libfreetype"
1935 frei0r_filter_deps="frei0r dlopen strtok_r"
1936 frei0r_filter_extralibs='$ldl'
1937 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1938 frei0r_src_filter_extralibs='$ldl'
1939 hqdn3d_filter_deps="gpl"
1940 interlace_filter_deps="gpl"
1941 resample_filter_deps="avresample"
1942 ocv_filter_deps="libopencv"
1943 scale_filter_deps="swscale"
1944 yadif_filter_deps="gpl"
1945
1946 # libraries
1947 avcodec_deps="avutil"
1948 avdevice_deps="avutil avcodec avformat"
1949 avfilter_deps="avutil"
1950 avformat_deps="avutil avcodec"
1951 avresample_deps="avutil"
1952 swscale_deps="avutil"
1953
1954 # programs
1955 avconv_deps="avcodec avfilter avformat avresample swscale"
1956 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1957 fps_filter null_filter resample_filter scale_filter
1958 setpts_filter trim_filter"
1959 avplay_deps="avcodec avformat avresample swscale sdl"
1960 avplay_select="rdft"
1961 avprobe_deps="avcodec avformat"
1962 avserver_deps="avformat fork !shared"
1963 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1964 avserver_extralibs='$ldl'
1965
1966 doc_deps="texi2html"
1967
1968 # default parameters
1969
1970 logfile="config.log"
1971
1972 # installation paths
1973 prefix_default="/usr/local"
1974 bindir_default='${prefix}/bin'
1975 datadir_default='${prefix}/share/avconv'
1976 docdir_default='${prefix}/share/doc/libav'
1977 incdir_default='${prefix}/include'
1978 libdir_default='${prefix}/lib'
1979 mandir_default='${prefix}/share/man'
1980 shlibdir_default="$libdir_default"
1981
1982 # toolchain
1983 ar_default="ar"
1984 cc_default="gcc"
1985 host_cc_default="gcc"
1986 cp_f="cp -f"
1987 ln_s="ln -s -f"
1988 nm_default="nm -g"
1989 objformat="elf"
1990 pkg_config_default=pkg-config
1991 ranlib="ranlib"
1992 strip="strip"
1993 yasmexe="yasm"
1994
1995 nogas=":"
1996
1997 # machine
1998 arch_default=$(uname -m)
1999 cpu="generic"
2000
2001 # OS
2002 target_os_default=$(tolower $(uname -s))
2003 host_os=$target_os_default
2004
2005 # configurable options
2006 enable $LIBRARY_LIST $PROGRAM_LIST
2007
2008 enable asm
2009 enable debug
2010 enable doc
2011 enable optimizations
2012 enable safe_bitstream_reader
2013 enable static
2014 enable swscale_alpha
2015
2016 # By default, enable only those hwaccels that have no external dependencies.
2017 enable dxva2 vdpau
2018
2019 # build settings
2020 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2021 LIBPREF="lib"
2022 LIBSUF=".a"
2023 FULLNAME='$(NAME)$(BUILDSUF)'
2024 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2025 SLIBPREF="lib"
2026 SLIBSUF=".so"
2027 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2028 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2029 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2030 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2031 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2032 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2033
2034 asflags_filter=echo
2035 cflags_filter=echo
2036 ldflags_filter=echo
2037
2038 AS_C='-c'
2039 AS_O='-o $@'
2040 CC_C='-c'
2041 CC_E='-E -o $@'
2042 CC_O='-o $@'
2043 LD_O='-o $@'
2044 LD_LIB='-l%'
2045 LD_PATH='-L'
2046 HOSTCC_C='-c'
2047 HOSTCC_O='-o $@'
2048 HOSTLD_O='-o $@'
2049
2050 host_cflags='-O3 -g'
2051 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2052 host_libs='-lm'
2053 host_cflags_filter=echo
2054 host_ldflags_filter=echo
2055
2056 target_path='$(CURDIR)'
2057
2058 # since the object filename is not given with the -MM flag, the compiler
2059 # is only able to print the basename, and we must add the path ourselves
2060 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2061 DEPFLAGS='-MM'
2062
2063 # find source path
2064 if test -f configure; then
2065 source_path=.
2066 else
2067 source_path=$(cd $(dirname "$0"); pwd)
2068 echo "$source_path" | grep -q '[[:blank:]]' &&
2069 die "Out of tree builds are impossible with whitespace in source path."
2070 test -e "$source_path/config.h" &&
2071 die "Out of tree builds are impossible with config.h in source dir."
2072 fi
2073
2074 for v in "$@"; do
2075 r=${v#*=}
2076 l=${v%"$r"}
2077 r=$(sh_quote "$r")
2078 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2079 done
2080
2081 find_things(){
2082 thing=$1
2083 pattern=$2
2084 file=$source_path/$3
2085 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2086 }
2087
2088 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2089 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2090 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2091 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2092 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2093 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2094 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2095 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2096 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2097 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2098 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2099
2100 ALL_COMPONENTS="
2101 $BSF_LIST
2102 $DECODER_LIST
2103 $DEMUXER_LIST
2104 $ENCODER_LIST
2105 $FILTER_LIST
2106 $HWACCEL_LIST
2107 $INDEV_LIST
2108 $MUXER_LIST
2109 $OUTDEV_LIST
2110 $PARSER_LIST
2111 $PROTOCOL_LIST
2112 "
2113
2114 for n in $COMPONENT_LIST; do
2115 v=$(toupper ${n%s})_LIST
2116 eval enable \$$v
2117 eval ${n}_if_any="\$$v"
2118 done
2119
2120 enable $ARCH_EXT_LIST
2121
2122 die_unknown(){
2123 echo "Unknown option \"$1\"."
2124 echo "See $0 --help for available options."
2125 exit 1
2126 }
2127
2128 print_3_columns() {
2129 cat | tr ' ' '\n' | sort | pr -r -3 -t
2130 }
2131
2132 show_list() {
2133 suffix=_$1
2134 shift
2135 echo $* | sed s/$suffix//g | print_3_columns
2136 exit 0
2137 }
2138
2139 rand_list(){
2140 IFS=', '
2141 set -- $*
2142 unset IFS
2143 for thing; do
2144 comp=${thing%:*}
2145 prob=${thing#$comp}
2146 prob=${prob#:}
2147 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2148 echo "prob ${prob:-0.5}"
2149 printf '%s\n' $comp
2150 done
2151 }
2152
2153 do_random(){
2154 action=$1
2155 shift
2156 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2157 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2158 }
2159
2160 for opt do
2161 optval="${opt#*=}"
2162 case "$opt" in
2163 --extra-ldflags=*)
2164 add_ldflags $optval
2165 ;;
2166 --extra-libs=*)
2167 add_extralibs $optval
2168 ;;
2169 --disable-devices)
2170 disable $INDEV_LIST $OUTDEV_LIST
2171 ;;
2172 --enable-debug=*)
2173 debuglevel="$optval"
2174 ;;
2175 --disable-programs)
2176 disable $PROGRAM_LIST
2177 ;;
2178 --disable-everything)
2179 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2180 ;;
2181 --disable-all)
2182 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2183 disable $LIBRARY_LIST $PROGRAM_LIST doc
2184 ;;
2185 --enable-random|--disable-random)
2186 action=${opt%%-random}
2187 do_random ${action#--} $COMPONENT_LIST
2188 ;;
2189 --enable-random=*|--disable-random=*)
2190 action=${opt%%-random=*}
2191 do_random ${action#--} $optval
2192 ;;
2193 --enable-*=*|--disable-*=*)
2194 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2195 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2196 eval list=\$$(toupper $thing)_LIST
2197 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2198 $action $(filter "$name" $list)
2199 ;;
2200 --enable-?*|--disable-?*)
2201 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2202 if is_in $option $COMPONENT_LIST; then
2203 test $action = disable && action=unset
2204 eval $action \$$(toupper ${option%s})_LIST
2205 elif is_in $option $CMDLINE_SELECT; then
2206 $action $option
2207 else
2208 die_unknown $opt
2209 fi
2210 ;;
2211 --list-*)
2212 NAME="${opt#--list-}"
2213 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2214 NAME=${NAME%s}
2215 eval show_list $NAME \$$(toupper $NAME)_LIST
2216 ;;
2217 --help|-h) show_help
2218 ;;
2219 *)
2220 optname="${opt%%=*}"
2221 optname="${optname#--}"
2222 optname=$(echo "$optname" | sed 's/-/_/g')
2223 if is_in $optname $CMDLINE_SET; then
2224 eval $optname='$optval'
2225 elif is_in $optname $CMDLINE_APPEND; then
2226 append $optname "$optval"
2227 else
2228 die_unknown $opt
2229 fi
2230 ;;
2231 esac
2232 done
2233
2234 disabled logging && logfile=/dev/null
2235
2236 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2237 set >> $logfile
2238
2239 test -n "$cross_prefix" && enable cross_compile
2240
2241 if enabled cross_compile; then
2242 test -n "$arch" && test -n "$target_os" ||
2243 die "Must specify target arch and OS when cross-compiling"
2244 fi
2245
2246 ar_default="${cross_prefix}${ar_default}"
2247 cc_default="${cross_prefix}${cc_default}"
2248 nm_default="${cross_prefix}${nm_default}"
2249 pkg_config_default="${cross_prefix}${pkg_config_default}"
2250 ranlib="${cross_prefix}${ranlib}"
2251 strip="${cross_prefix}${strip}"
2252
2253 sysinclude_default="${sysroot}/usr/include"
2254
2255 case "$toolchain" in
2256 clang-asan)
2257 cc_default="clang"
2258 add_cflags -fsanitize=address
2259 add_ldflags -fsanitize=address
2260 ;;
2261 clang-tsan)
2262 cc_default="clang"
2263 add_cflags -fsanitize=thread -pie
2264 add_ldflags -fsanitize=thread -pie
2265 ;;
2266 gcc-asan)
2267 cc_default="gcc"
2268 add_cflags -fsanitize=address
2269 add_ldflags -fsanitize=address
2270 ;;
2271 gcc-tsan)
2272 cc_default="gcc"
2273 add_cflags -fsanitize=thread -pie -fPIC
2274 add_ldflags -fsanitize=thread -pie -fPIC
2275 ;;
2276 valgrind-massif)
2277 target_exec_default="valgrind"
2278 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2279 ;;
2280 valgrind-memcheck)
2281 target_exec_default="valgrind"
2282 target_exec_args="--track-origins=yes --leak-check=full"
2283 ;;
2284 msvc)
2285 # Check whether the current MSVC version needs the C99 converter.
2286 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2287 # support enough of C99 to build libav. Default to the new
2288 # behaviour if the regexp was unable to match anything, since this
2289 # successfully parses the version number of existing supported
2290 # versions that require the converter (MSVC 2010 and 2012).
2291 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2292 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2293 cc_default="cl"
2294 else
2295 cc_default="c99wrap cl"
2296 fi
2297 ld_default="link"
2298 nm_default="dumpbin -symbols"
2299 ar_default="lib"
2300 target_os_default="win32"
2301 # Use a relative path for TMPDIR. This makes sure all the
2302 # ffconf temp files are written with a relative path, avoiding
2303 # issues with msys/win32 path conversion for MSVC parameters
2304 # such as -Fo<file> or -out:<file>.
2305 TMPDIR=.
2306 ;;
2307 icl)
2308 cc_default="icl"
2309 ld_default="xilink"
2310 nm_default="dumpbin -symbols"
2311 ar_default="xilib"
2312 target_os_default="win32"
2313 TMPDIR=.
2314 ;;
2315 gcov)
2316 add_cflags -fprofile-arcs -ftest-coverage
2317 add_ldflags -fprofile-arcs -ftest-coverage
2318 ;;
2319 hardened)
2320 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2321 add_ldflags -Wl,-z,relro -Wl,-z,now
2322 ;;
2323 ?*)
2324 die "Unknown toolchain $toolchain"
2325 ;;
2326 esac
2327
2328 set_default arch cc pkg_config sysinclude target_exec target_os
2329 enabled cross_compile || host_cc_default=$cc
2330 set_default host_cc
2331
2332 if ! $pkg_config --version >/dev/null 2>&1; then
2333 warn "$pkg_config not found, library detection may fail."
2334 pkg_config=false
2335 fi
2336
2337 exesuf() {
2338 case $1 in
2339 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2340 esac
2341 }
2342
2343 EXESUF=$(exesuf $target_os)
2344 HOSTEXESUF=$(exesuf $host_os)
2345
2346 # set temporary file name
2347 : ${TMPDIR:=$TEMPDIR}
2348 : ${TMPDIR:=$TMP}
2349 : ${TMPDIR:=/tmp}
2350
2351 if ! check_cmd mktemp -u XXXXXX; then
2352 # simple replacement for missing mktemp
2353 # NOT SAFE FOR GENERAL USE
2354 mktemp(){
2355 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2356 }
2357 fi
2358
2359 tmpfile(){
2360 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2361 (set -C; exec > $tmp) 2>/dev/null ||
2362 die "Unable to create temporary file in $TMPDIR."
2363 append TMPFILES $tmp
2364 eval $1=$tmp
2365 }
2366
2367 trap 'rm -f -- $TMPFILES' EXIT
2368
2369 tmpfile TMPASM .asm
2370 tmpfile TMPC .c
2371 tmpfile TMPE $EXESUF
2372 tmpfile TMPH .h
2373 tmpfile TMPO .o
2374 tmpfile TMPS .S
2375 tmpfile TMPSH .sh
2376 tmpfile TMPV .ver
2377
2378 unset -f mktemp
2379
2380 chmod +x $TMPE
2381
2382 # make sure we can execute files in $TMPDIR
2383 cat > $TMPSH 2>> $logfile <<EOF
2384 #! /bin/sh
2385 EOF
2386 chmod +x $TMPSH >> $logfile 2>&1
2387 if ! $TMPSH >> $logfile 2>&1; then
2388 cat <<EOF
2389 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2390 variable to another directory and make sure that it is not mounted noexec.
2391 EOF
2392 die "Sanity test failed."
2393 fi
2394
2395 ccc_flags(){
2396 for flag; do
2397 case $flag in
2398 -std=c99) echo -c99 ;;
2399 -mcpu=*) echo -arch ${flag#*=} ;;
2400 -mieee) echo -ieee ;;
2401 -O*|-fast) echo $flag ;;
2402 -fno-math-errno) echo -assume nomath_errno ;;
2403 -g) echo -g3 ;;
2404 -Wall) echo -msg_enable level2 ;;
2405 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2406 -Wl,*) echo $flag ;;
2407 -f*|-W*) ;;
2408 *) echo $flag ;;
2409 esac
2410 done
2411 }
2412
2413 cparser_flags(){
2414 for flag; do
2415 case $flag in
2416 -Wno-switch) echo -Wno-switch-enum ;;
2417 -Wno-format-zero-length) ;;
2418 -Wdisabled-optimization) ;;
2419 -Wno-pointer-sign) echo -Wno-other ;;
2420 *) echo $flag ;;
2421 esac
2422 done
2423 }
2424
2425 msvc_common_flags(){
2426 for flag; do
2427 case $flag in
2428 # In addition to specifying certain flags under the compiler
2429 # specific filters, they must be specified here as well or else the
2430 # generic catch all at the bottom will print the original flag.
2431 -Wall) ;;
2432 -std=c99) ;;
2433 # Common flags
2434 -fomit-frame-pointer) ;;
2435 -g) echo -Z7 ;;
2436 -fno-math-errno) ;;
2437 -fno-common) ;;
2438 -fno-signed-zeros) ;;
2439 -fPIC) ;;
2440 -mthumb) ;;
2441 -march=*) ;;
2442 -lz) echo zlib.lib ;;
2443 -lavifil32) echo vfw32.lib ;;
2444 -lavicap32) echo vfw32.lib user32.lib ;;
2445 -l*) echo ${flag#-l}.lib ;;
2446 *) echo $flag ;;
2447 esac
2448 done
2449 }
2450
2451 msvc_flags(){
2452 msvc_common_flags "$@"
2453 for flag; do
2454 case $flag in
2455 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2456 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2457 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2458 -wd4273 ;;
2459 esac
2460 done
2461 }
2462
2463 icl_flags(){
2464 msvc_common_flags "$@"
2465 for flag; do
2466 case $flag in
2467 # Despite what Intel's documentation says -Wall, which is supported
2468 # on Windows, does enable remarks so disable them here.
2469 -Wall) echo $flag -Qdiag-disable:remark ;;
2470 -std=c99) echo -Qstd=c99 ;;
2471 esac
2472 done
2473 }
2474
2475 pgi_flags(){
2476 for flag; do
2477 case $flag in
2478 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2479 -fomit-frame-pointer) echo -Mnoframe ;;
2480 -g) echo -gopt ;;
2481 *) echo $flag ;;
2482 esac
2483 done
2484 }
2485
2486 suncc_flags(){
2487 for flag; do
2488 case $flag in
2489 -march=*|-mcpu=*)
2490 case "${flag#*=}" in
2491 native) echo -xtarget=native ;;
2492 v9|niagara) echo -xarch=sparc ;;
2493 ultrasparc) echo -xarch=sparcvis ;;
2494 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2495 i586|pentium) echo -xchip=pentium ;;
2496 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2497 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2498 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2499 pentium4*) echo -xtarget=pentium4 ;;
2500 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2501 *-sse3) echo -xarch=sse3 ;;
2502 core2) echo -xarch=ssse3 -xchip=core2 ;;
2503 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2504 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2505 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2506 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2507 k8|opteron|athlon64|athlon-fx)
2508 echo -xarch=sse2a ;;
2509 athlon*) echo -xarch=pentium_proa ;;
2510 esac
2511 ;;
2512 -std=c99) echo -xc99 ;;
2513 -fomit-frame-pointer) echo -xregs=frameptr ;;
2514 -fPIC) echo -KPIC -xcode=pic32 ;;
2515 -W*,*) echo $flag ;;
2516 -f*-*|-W*|-mimpure-text) ;;
2517 -shared) echo -G ;;
2518 *) echo $flag ;;
2519 esac
2520 done
2521 }
2522
2523 tms470_flags(){
2524 for flag; do
2525 case $flag in
2526 -march=*|-mcpu=*)
2527 case "${flag#*=}" in
2528 armv7-a|cortex-a*) echo -mv=7a8 ;;
2529 armv7-r|cortex-r*) echo -mv=7r4 ;;
2530 armv7-m|cortex-m*) echo -mv=7m3 ;;
2531 armv6*|arm11*) echo -mv=6 ;;
2532 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2533 echo -mv=5e ;;
2534 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2535 esac
2536 ;;
2537 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2538 -mfpu=vfp) echo --float_support=vfpv2 ;;
2539 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2540 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2541 -msoft-float) echo --float_support=vfplib ;;
2542 -O[0-3]|-mf=*) echo $flag ;;
2543 -g) echo -g -mn ;;
2544 -pds=*) echo $flag ;;
2545 -D*|-I*) echo $flag ;;
2546 --gcc|--abi=*) echo $flag ;;
2547 -me) echo $flag ;;
2548 esac
2549 done
2550 }
2551
2552 probe_cc(){
2553 pfx=$1
2554 _cc=$2
2555
2556 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2557 unset _ld_o _ldflags _ld_lib _ld_path
2558 unset _depflags _DEPCMD _DEPFLAGS
2559 _flags_filter=echo
2560
2561 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2562 _type=llvm_gcc
2563 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2564 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2565 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2566 _cflags_speed='-O3'
2567 _cflags_size='-Os'
2568 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2569 _type=gcc
2570 gcc_version=$($_cc --version | head -n1)
2571 gcc_basever=$($_cc -dumpversion)
2572 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2573 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2574 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2575 if ! $_cc -dumpversion | grep -q '^2\.'; then
2576 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2577 fi
2578 _cflags_speed='-O3'
2579 _cflags_size='-Os'
2580 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2581 _type=icc
2582 _ident=$($_cc --version | head -n1)
2583 _depflags='-MMD'
2584 _cflags_speed='-O3'
2585 _cflags_size='-Os'
2586 _cflags_noopt='-O1'
2587 elif $_cc -v 2>&1 | grep -q xlc; then
2588 _type=xlc
2589 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2590 _cflags_speed='-O5'
2591 _cflags_size='-O5 -qcompact'
2592 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2593 _type=ccc
2594 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2595 _DEPFLAGS='-M'
2596 _cflags_speed='-fast'
2597 _cflags_size='-O1'
2598 _flags_filter=ccc_flags
2599 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2600 test -d "$sysroot" || die "No valid sysroot specified."
2601 _type=armcc
2602 _ident=$($_cc --vsn | head -n1)
2603 armcc_conf="$PWD/armcc.conf"
2604 $_cc --arm_linux_configure \
2605 --arm_linux_config_file="$armcc_conf" \
2606 --configure_sysroot="$sysroot" \
2607 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2608 die "Error creating armcc configuration file."
2609 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2610 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2611 as_default="${cross_prefix}gcc"
2612 _depflags='-MMD'
2613 _cflags_speed='-O3'
2614 _cflags_size='-Os'
2615 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2616 _type=tms470
2617 _ident=$($_cc -version | head -n1 | tr -s ' ')
2618 _flags='--gcc --abi=eabi -me'
2619 _cc_e='-ppl -fe=$@'
2620 _cc_o='-fe=$@'
2621 _depflags='-ppa -ppd=$(@:.o=.d)'
2622 _cflags_speed='-O3 -mf=5'
2623 _cflags_size='-O3 -mf=2'
2624 _flags_filter=tms470_flags
2625 elif $_cc -v 2>&1 | grep -q clang; then
2626 _type=clang
2627 _ident=$($_cc --version | head -n1)
2628 _depflags='-MMD'
2629 _cflags_speed='-O3'
2630 _cflags_size='-Os'
2631 elif $_cc -V 2>&1 | grep -q Sun; then
2632 _type=suncc
2633 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2634 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2635 _DEPFLAGS='-xM1 -xc99'
2636 _ldflags='-std=c99'
2637 _cflags_speed='-O5'
2638 _cflags_size='-O5 -xspace'
2639 _flags_filter=suncc_flags
2640 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2641 _type=pathscale
2642 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2643 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2644 _cflags_speed='-O2'
2645 _cflags_size='-Os'
2646 _flags_filter='filter_out -Wdisabled-optimization'
2647 elif $_cc -v 2>&1 | grep -q Open64; then
2648 _type=open64
2649 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2650 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2651 _cflags_speed='-O2'
2652 _cflags_size='-Os'
2653 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2654 elif $_cc -V 2>&1 | grep -q Portland; then
2655 _type=pgi
2656 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2657 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2658 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2659 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2660 _cflags_noopt="-O1"
2661 _flags_filter=pgi_flags
2662 elif $_cc 2>&1 | grep -q Microsoft; then
2663 _type=msvc
2664 _ident=$($cc 2>&1 | head -n1)
2665 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2666 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2667 _cflags_speed="-O2"
2668 _cflags_size="-O1"
2669 if $_cc 2>&1 | grep -q Linker; then
2670 _ld_o='-out:$@'
2671 else
2672 _ld_o='-Fe$@'
2673 fi
2674 _cc_o='-Fo$@'
2675 _cc_e='-P -Fi$@'
2676 _flags_filter=msvc_flags
2677 _ld_lib='lib%.a'
2678 _ld_path='-libpath:'
2679 _flags='-nologo'
2680 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2681 if [ $pfx = hostcc ]; then
2682 append _cflags -Dsnprintf=_snprintf
2683 fi
2684 elif $_cc 2>&1 | grep -q Intel; then
2685 _type=icl
2686 _ident=$($cc 2>&1 | head -n1)
2687 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2688 # Not only is O3 broken on 13.x+ but it is slower on all previous
2689 # versions (tested) as well.
2690 _cflags_speed="-O2"
2691 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2692 if $_cc 2>&1 | grep -q Linker; then
2693 _ld_o='-out:$@'
2694 else
2695 _ld_o='-Fe$@'
2696 fi
2697 _cc_o='-Fo$@'
2698 _cc_e='-P'
2699 _flags_filter=icl_flags
2700 _ld_lib='lib%.a'
2701 _ld_path='-libpath:'
2702 # -Qdiag-error to make icl error when seeing certain unknown arguments
2703 _flags='-nologo -Qdiag-error:4044,10157'
2704 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2705 # with MSVC which enables it by default.
2706 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2707 if [ $pfx = hostcc ]; then
2708 append _cflags -Dsnprintf=_snprintf
2709 fi
2710 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2711 _type=cparser
2712 _ident=$($_cc --version | head -n1)
2713 _depflags='-MMD'
2714 _cflags_speed='-O4'
2715 _cflags_size='-O2'
2716 _flags_filter=cparser_flags
2717 fi
2718
2719 eval ${pfx}_type=\$_type
2720 eval ${pfx}_ident=\$_ident
2721 }
2722
2723 set_ccvars(){
2724 eval ${1}_C=\${_cc_c-\${${1}_C}}
2725 eval ${1}_E=\${_cc_e-\${${1}_E}}
2726 eval ${1}_O=\${_cc_o-\${${1}_O}}
2727
2728 if [ -n "$_depflags" ]; then
2729 eval ${1}_DEPFLAGS=\$_depflags
2730 else
2731 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2732 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2733 eval DEP${1}FLAGS=\$_flags
2734 fi
2735 }
2736
2737 probe_cc cc "$cc"
2738 cflags_filter=$_flags_filter
2739 cflags_speed=$_cflags_speed
2740 cflags_size=$_cflags_size
2741 cflags_noopt=$_cflags_noopt
2742 add_cflags $_flags $_cflags
2743 cc_ldflags=$_ldflags
2744 set_ccvars CC
2745
2746 probe_cc hostcc "$host_cc"
2747 host_cflags_filter=$_flags_filter
2748 add_host_cflags $_flags $_cflags
2749 set_ccvars HOSTCC
2750
2751 test -n "$cc_type" && enable $cc_type ||
2752 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2753
2754 : ${as_default:=$cc}
2755 : ${dep_cc_default:=$cc}
2756 : ${ld_default:=$cc}
2757 : ${host_ld_default:=$host_cc}
2758 set_default ar as dep_cc ld host_ld
2759
2760 probe_cc as "$as"
2761 asflags_filter=$_flags_filter
2762 add_asflags $_flags $_cflags
2763 set_ccvars AS
2764
2765 probe_cc ld "$ld"
2766 ldflags_filter=$_flags_filter
2767 add_ldflags $_flags $_ldflags
2768 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2769 LD_O=${_ld_o-$LD_O}
2770 LD_LIB=${_ld_lib-$LD_LIB}
2771 LD_PATH=${_ld_path-$LD_PATH}
2772
2773 probe_cc hostld "$host_ld"
2774 host_ldflags_filter=$_flags_filter
2775 add_host_ldflags $_flags $_ldflags
2776 HOSTLD_O=${_ld_o-$HOSTLD_O}
2777
2778 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2779 probe_cc depcc "$dep_cc"
2780 CCDEP=${_DEPCMD:-$DEPCMD}
2781 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2782 DEPCCFLAGS=$_flags
2783 fi
2784
2785 if $ar 2>&1 | grep -q Microsoft; then
2786 arflags="-nologo"
2787 ar_o='-out:$@'
2788 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2789 arflags="rq"
2790 ar_o='$@'
2791 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2792 arflags='-Xany -r -c'
2793 ar_o='$@'
2794 else
2795 arflags="rc"
2796 ar_o='$@'
2797 fi
2798
2799 add_cflags $extra_cflags
2800 add_asflags $extra_cflags
2801
2802 if test -n "$sysroot"; then
2803 case "$cc_type" in
2804 gcc|llvm_gcc|clang)
2805 add_cppflags --sysroot="$sysroot"
2806 add_ldflags --sysroot="$sysroot"
2807 ;;
2808 tms470)
2809 add_cppflags -I"$sysinclude"
2810 add_ldflags --sysroot="$sysroot"
2811 ;;
2812 esac
2813 fi
2814
2815 if test "$cpu" = host; then
2816 enabled cross_compile &&
2817 die "--cpu=host makes no sense when cross-compiling."
2818
2819 case "$cc_type" in
2820 gcc|llvm_gcc)
2821 check_native(){
2822 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2823 sed -n "/cc1.*$1=/{
2824 s/.*$1=\\([^ ]*\\).*/\\1/
2825 p
2826 q
2827 }" $TMPE
2828 }
2829 cpu=$(check_native -march || check_native -mcpu)
2830 ;;
2831 esac
2832
2833 test "${cpu:-host}" = host &&
2834 die "--cpu=host not supported with compiler $cc"
2835 fi
2836
2837 # Deal with common $arch aliases
2838 case "$arch" in
2839 aarch64|arm64)
2840 arch="aarch64"
2841 ;;
2842 arm*)
2843 arch="arm"
2844 ;;
2845 mips*|IP*)
2846 arch="mips"
2847 ;;
2848 parisc*|hppa*)
2849 arch="parisc"
2850 ;;
2851 "Power Macintosh"|ppc*|powerpc*)
2852 arch="ppc"
2853 ;;
2854 s390|s390x)
2855 arch="s390"
2856 ;;
2857 sh4|sh)
2858 arch="sh4"
2859 ;;
2860 sun4u|sparc*)
2861 arch="sparc"
2862 ;;
2863 tilegx|tile-gx)
2864 arch="tilegx"
2865 ;;
2866 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2867 arch="x86"
2868 ;;
2869 esac
2870
2871 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2872 enable $arch
2873
2874 # Add processor-specific flags
2875 if enabled aarch64; then
2876
2877 case $cpu in
2878 armv*)
2879 cpuflags="-march=$cpu"
2880 ;;
2881 *)
2882 cpuflags="-mcpu=$cpu"
2883 ;;
2884 esac
2885
2886 elif enabled alpha; then
2887
2888 cpuflags="-mcpu=$cpu"
2889
2890 elif enabled arm; then
2891
2892 check_arm_arch() {
2893 check_cpp_condition stddef.h \
2894 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2895 $cpuflags
2896 }
2897
2898 probe_arm_arch() {
2899 if check_arm_arch 4; then echo armv4;
2900 elif check_arm_arch 4T; then echo armv4t;
2901 elif check_arm_arch 5; then echo armv5;
2902 elif check_arm_arch 5E; then echo armv5e;
2903 elif check_arm_arch 5T; then echo armv5t;
2904 elif check_arm_arch 5TE; then echo armv5te;
2905 elif check_arm_arch 5TEJ; then echo armv5te;
2906 elif check_arm_arch 6; then echo armv6;
2907 elif check_arm_arch 6J; then echo armv6j;
2908 elif check_arm_arch 6K; then echo armv6k;
2909 elif check_arm_arch 6Z; then echo armv6z;
2910 elif check_arm_arch 6ZK; then echo armv6zk;
2911 elif check_arm_arch 6T2; then echo armv6t2;
2912 elif check_arm_arch 7; then echo armv7;
2913 elif check_arm_arch 7A 7_A; then echo armv7-a;
2914 elif check_arm_arch 7R 7_R; then echo armv7-r;
2915 elif check_arm_arch 7M 7_M; then echo armv7-m;
2916 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2917 elif check_arm_arch 8A 8_A; then echo armv8-a;
2918 fi
2919 }
2920
2921 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2922
2923 case $cpu in
2924 armv*)
2925 cpuflags="-march=$cpu"
2926 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2927 ;;
2928 *)
2929 cpuflags="-mcpu=$cpu"
2930 case $cpu in
2931 cortex-a*) subarch=armv7a ;;
2932 cortex-r*) subarch=armv7r ;;
2933 cortex-m*) enable thumb; subarch=armv7m ;;
2934 arm11*) subarch=armv6 ;;
2935 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2936 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2937 *) subarch=$(probe_arm_arch) ;;
2938 esac
2939 ;;
2940 esac
2941
2942 case "$subarch" in
2943 armv5t*) enable fast_clz ;;
2944 armv[6-8]*) enable fast_clz fast_unaligned ;;
2945 esac
2946
2947 elif enabled avr32; then
2948
2949 case $cpu in
2950 ap7[02]0[0-2])
2951 subarch="avr32_ap"
2952 cpuflags="-mpart=$cpu"
2953 ;;
2954 ap)
2955 subarch="avr32_ap"
2956 cpuflags="-march=$cpu"
2957 ;;
2958 uc3[ab]*)
2959 subarch="avr32_uc"
2960 cpuflags="-mcpu=$cpu"
2961 ;;
2962 uc)
2963 subarch="avr32_uc"
2964 cpuflags="-march=$cpu"
2965 ;;
2966 esac
2967
2968 elif enabled bfin; then
2969
2970 cpuflags="-mcpu=$cpu"
2971
2972 elif enabled mips; then
2973
2974 cpuflags="-march=$cpu"
2975
2976 elif enabled ppc; then
2977
2978 case $(tolower $cpu) in
2979 601|ppc601|powerpc601)
2980 cpuflags="-mcpu=601"
2981 disable altivec
2982 ;;
2983 603*|ppc603*|powerpc603*)
2984 cpuflags="-mcpu=603"
2985 disable altivec
2986 ;;
2987 604*|ppc604*|powerpc604*)
2988 cpuflags="-mcpu=604"
2989 disable altivec
2990 ;;
2991 g3|75*|ppc75*|powerpc75*)
2992 cpuflags="-mcpu=750"
2993 disable altivec
2994 ;;
2995 g4|745*|ppc745*|powerpc745*)
2996 cpuflags="-mcpu=7450"
2997 ;;
2998 74*|ppc74*|powerpc74*)
2999 cpuflags="-mcpu=7400"
3000 ;;
3001 g5|970|ppc970|powerpc970)
3002 cpuflags="-mcpu=970"
3003 ;;
3004 power[3-7]*)
3005 cpuflags="-mcpu=$cpu"
3006 ;;
3007 cell)
3008 cpuflags="-mcpu=cell"
3009 enable ldbrx
3010 ;;
3011 e500mc)
3012 cpuflags="-mcpu=e500mc"
3013 disable altivec
3014 ;;
3015 e500v2)
3016 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3017 disable altivec
3018 ;;
3019 e500)
3020 cpuflags="-mcpu=8540 -mhard-float"
3021 disable altivec
3022 ;;
3023 esac
3024
3025 elif enabled sparc; then
3026
3027 case $cpu in
3028 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3029 cpuflags="-mcpu=$cpu"
3030 disable vis
3031 ;;
3032 ultrasparc*|niagara[234])
3033 cpuflags="-mcpu=$cpu"
3034 ;;
3035 esac
3036
3037 elif enabled x86; then
3038
3039 case $cpu in
3040 i[345]86|pentium)
3041 cpuflags="-march=$cpu"
3042 disable mmx
3043 ;;
3044 # targets that do NOT support nopl and conditional mov (cmov)
3045 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3046 cpuflags="-march=$cpu"
3047 disable i686
3048 ;;
3049 # targets that do support nopl and conditional mov (cmov)
3050 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3051 cpuflags="-march=$cpu"
3052 enable i686
3053 enable fast_cmov
3054 ;;
3055 # targets that do support conditional mov but on which it's slow
3056 pentium4|pentium4m|prescott|nocona)
3057 cpuflags="-march=$cpu"
3058 enable i686
3059 disable fast_cmov
3060 ;;
3061 esac
3062
3063 fi
3064
3065 if [ "$cpu" != generic ]; then
3066 add_cflags $cpuflags
3067 add_asflags $cpuflags
3068 fi
3069
3070 # compiler sanity check
3071 check_exec <<EOF
3072 int main(void){ return 0; }
3073 EOF
3074 if test "$?" != 0; then
3075 echo "$cc is unable to create an executable file."
3076 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3077 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3078 echo "Only do this if you know what cross compiling means."
3079 fi
3080 die "C compiler test failed."
3081 fi
3082
3083 add_cppflags -D_ISOC99_SOURCE
3084 check_cflags -std=c99
3085 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3086 #include <stdlib.h>
3087 EOF
3088 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3089 #include <stdlib.h>
3090 EOF
3091
3092 check_host_cflags -std=c99
3093 check_host_cflags -Wall
3094
3095 check_64bit(){
3096 arch32=$1
3097 arch64=$2
3098 expr=$3
3099 check_code cc "" "int test[2*($expr) - 1]" &&
3100 subarch=$arch64 || subarch=$arch32
3101 }
3102
3103 case "$arch" in
3104 aarch64|alpha|ia64)
3105 spic=$shared
3106 ;;
3107 mips)
3108 check_64bit mips mips64 '_MIPS_SIM > 1'
3109 spic=$shared
3110 ;;
3111 parisc)
3112 check_64bit parisc parisc64 'sizeof(void *) > 4'
3113 spic=$shared
3114 ;;
3115 ppc)
3116 check_64bit ppc ppc64 'sizeof(void *) > 4'
3117 spic=$shared
3118 ;;
3119 sparc)
3120 check_64bit sparc sparc64 'sizeof(void *) > 4'
3121 spic=$shared
3122 ;;
3123 x86)
3124 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3125 if test "$subarch" = "x86_64"; then
3126 spic=$shared
3127 fi
3128 ;;
3129 esac
3130
3131 enable $subarch
3132 enabled spic && enable_weak pic
3133
3134 # OS specific
3135 case $target_os in
3136 aix)
3137 SHFLAGS=-shared
3138 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3139 enabled shared && add_ldflags -Wl,-brtl
3140 ;;
3141 haiku)
3142 prefix_default="/boot/common"
3143 network_extralibs="-lnetwork"
3144 host_libs=
3145 ;;
3146 sunos)
3147 SHFLAGS='-shared -Wl,-h,$$(@F)'
3148 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3149 network_extralibs="-lsocket -lnsl"
3150 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3151 # When using suncc to build, the Solaris linker will mark
3152 # an executable with each instruction set encountered by
3153 # the Solaris assembler. As our libraries contain their own
3154 # guards for processor-specific code, instead suppress
3155 # generation of the HWCAPS ELF section on Solaris x86 only.
3156 enabled_all suncc x86 &&
3157 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3158 add_ldflags -Wl,-M,mapfile
3159 nm_default='nm -P -g'
3160 ;;
3161 netbsd)
3162 disable symver
3163 oss_indev_extralibs="-lossaudio"
3164 oss_outdev_extralibs="-lossaudio"
3165 ;;
3166 openbsd|bitrig)
3167 disable symver
3168 SHFLAGS='-shared'
3169 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3170 SLIB_INSTALL_LINKS=
3171 oss_indev_extralibs="-lossaudio"
3172 oss_outdev_extralibs="-lossaudio"
3173 ;;
3174 dragonfly)
3175 disable symver
3176 ;;
3177 freebsd)
3178 ;;
3179 bsd/os)
3180 add_extralibs -lpoll -lgnugetopt
3181 ;;
3182 darwin)
3183 gas="gas-preprocessor.pl $cc"
3184 enabled ppc && add_asflags -force_cpusubtype_ALL
3185 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3186 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3187 add_ldflags -Wl,-dynamic,-search_paths_first
3188 SLIBSUF=".dylib"
3189 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3190 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3191 objformat="macho"
3192 enabled x86_64 && objformat="macho64"
3193 enabled_any pic shared ||
3194 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3195 ;;
3196 mingw32*)
3197 if test $target_os = "mingw32ce"; then
3198 disable network
3199 else
3200 target_os=mingw32
3201 fi
3202 LIBTARGET=i386
3203 if enabled x86_64; then
3204 LIBTARGET="i386:x86-64"
3205 elif enabled arm; then
3206 LIBTARGET=arm-wince
3207 fi
3208 check_ldflags -Wl,--nxcompat
3209 check_ldflags -Wl,--dynamicbase
3210 shlibdir_default="$bindir_default"
3211 SLIBPREF=""
3212 SLIBSUF=".dll"
3213 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3214 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3215 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3216 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3217 SLIB_INSTALL_LINKS=
3218 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3219 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3220 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3221 objformat="win32"
3222 dlltool="${cross_prefix}dlltool"
3223 ranlib=:
3224 enable dos_paths
3225 ;;
3226 win32|win64)
3227 disable symver
3228 if enabled shared; then
3229 # Link to the import library instead of the normal static library
3230 # for shared libs.
3231 LD_LIB='%.lib'
3232 # Cannot build both shared and static libs with MSVC or icl.
3233 disable static
3234 fi
3235 shlibdir_default="$bindir_default"
3236 SLIBPREF=""
3237 SLIBSUF=".dll"
3238 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3239 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3240 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3241 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3242 SLIB_INSTALL_LINKS=
3243 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3244 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3245 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3246 objformat="win32"
3247 ranlib=:
3248 enable dos_paths
3249 ;;
3250 cygwin*)
3251 target_os=cygwin
3252 shlibdir_default="$bindir_default"
3253 SLIBPREF="cyg"
3254 SLIBSUF=".dll"
3255 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3256 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3257 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3258 SLIB_INSTALL_LINKS=
3259 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3260 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3261 objformat="win32"
3262 enable dos_paths
3263 ;;
3264 *-dos|freedos|opendos)
3265 network_extralibs="-lsocket"
3266 objformat="coff"
3267 enable dos_paths
3268 add_cppflags -U__STRICT_ANSI__
3269 ;;
3270 linux)
3271 enable dv1394
3272 ;;
3273 irix*)
3274 target_os=irix
3275 ranlib="echo ignoring ranlib"
3276 ;;
3277 os/2*)
3278 ln_s="cp -f"
3279 objformat="aout"
3280 add_cppflags -D_GNU_SOURCE
3281 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3282 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3283 LIBSUF="_s.a"
3284 SLIBPREF=""
3285 SLIBSUF=".dll"
3286 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3287 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3288 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3289 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3290 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3291 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3292 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3293 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3294 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3295 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3296 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3297 enable dos_paths
3298 ;;
3299 gnu/kfreebsd)
3300 add_cppflags -D_BSD_SOURCE
3301 ;;
3302 gnu)
3303 ;;
3304 qnx)
3305 add_cppflags -D_QNX_SOURCE
3306 network_extralibs="-lsocket"
3307 ;;
3308 symbian)
3309 SLIBSUF=".dll"
3310 enable dos_paths
3311 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3312 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3313 add_ldflags -Wl,--target1-abs,--no-undefined \
3314 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3315 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3316 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3317 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3318 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3319 ;;
3320 osf1)
3321 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3322 ;;
3323 minix)
3324 ;;
3325 plan9)
3326 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3327 -D_REENTRANT_SOURCE \
3328 -D_RESEARCH_SOURCE \
3329 -DFD_SETSIZE=96 \
3330 -DHAVE_SOCK_OPTS
3331 add_compat strtod.o strtod=avpriv_strtod
3332 network_extralibs='-lbsd'
3333 exeobjs=compat/plan9/main.o
3334 disable avserver
3335 cp_f='cp'
3336 ;;
3337 none)
3338 ;;
3339 *)
3340 die "Unknown OS '$target_os'."
3341 ;;
3342 esac
3343
3344 # determine libc flavour
3345
3346 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3347 if check_cpp_condition features.h "defined __UCLIBC__"; then
3348 libc_type=uclibc
3349 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3350 elif check_cpp_condition features.h "defined __GLIBC__"; then
3351 libc_type=glibc
3352 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3353 # MinGW headers can be installed on Cygwin, so check for newlib first.
3354 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3355 libc_type=newlib
3356 add_cppflags -U__STRICT_ANSI__
3357 elif check_header _mingw.h; then
3358 libc_type=mingw
3359 check_cpp_condition _mingw.h \
3360 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3361 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3362 die "ERROR: MinGW runtime version must be >= 3.15."
3363 add_cppflags -U__STRICT_ANSI__
3364 elif check_func_headers stdlib.h _get_doserrno; then
3365 libc_type=msvcrt
3366 add_compat strtod.o strtod=avpriv_strtod
3367 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3368 _snprintf=avpriv_snprintf \
3369 vsnprintf=avpriv_vsnprintf
3370 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3371 # 0x601 by default unless something else is set by the user.
3372 # This can easily lead to us detecting functions only present
3373 # in such new versions and producing binaries requiring windows 7.0.
3374 # Therefore explicitly set the default to XP unless the user has
3375 # set something else on the command line.
3376 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3377 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3378 libc_type=klibc
3379 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3380 libc_type=bionic
3381 add_compat strtod.o strtod=avpriv_strtod
3382 fi
3383
3384 test -n "$libc_type" && enable $libc_type
3385
3386 # hacks for compiler/libc/os combinations
3387
3388 if enabled_all tms470 glibc; then
3389 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3390 add_cppflags -D__USER_LABEL_PREFIX__=
3391 add_cppflags -D__builtin_memset=memset
3392 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3393 add_cflags -pds=48 # incompatible redefinition of macro
3394 fi
3395
3396 if enabled_all ccc glibc; then
3397 add_ldflags -Wl,-z,now # calls to libots crash without this
3398 fi
3399
3400 esc(){
3401 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3402 }
3403
3404 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3405
3406 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3407
3408 set_default $PATHS_LIST
3409 set_default nm
3410
3411 # we need to build at least one lib type
3412 if ! enabled_any static shared; then
3413 cat <<EOF
3414 At least one library type must be built.
3415 Specify --enable-static to build the static libraries or --enable-shared to
3416 build the shared libraries as well. To only build the shared libraries specify
3417 --disable-static in addition to --enable-shared.
3418 EOF
3419 exit 1;
3420 fi
3421
3422 die_license_disabled() {
3423 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3424 }
3425
3426 die_license_disabled gpl libcdio
3427 die_license_disabled gpl libx264
3428 die_license_disabled gpl libxavs
3429 die_license_disabled gpl libxvid
3430 die_license_disabled gpl x11grab
3431
3432 die_license_disabled nonfree libfaac
3433 die_license_disabled nonfree libfdk_aac
3434 die_license_disabled nonfree openssl
3435
3436 die_license_disabled version3 libopencore_amrnb
3437 die_license_disabled version3 libopencore_amrwb
3438 die_license_disabled version3 libvo_aacenc
3439 die_license_disabled version3 libvo_amrwbenc
3440
3441 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3442
3443 disabled optimizations || check_cflags -fomit-frame-pointer
3444
3445 enable_weak_pic() {
3446 disabled pic && return
3447 enable pic
3448 add_cppflags -DPIC
3449 case "$target_os" in
3450 mingw*|cygwin*)
3451 ;;
3452 *)
3453 add_cflags -fPIC
3454 ;;
3455 esac
3456 add_asflags -fPIC
3457 }
3458
3459 enabled pic && enable_weak_pic
3460
3461 check_cc <<EOF || die "Symbol mangling check failed."
3462 int ff_extern;
3463 EOF
3464 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3465 extern_prefix=${sym%%ff_extern*}
3466
3467 check_cc <<EOF && enable_weak inline_asm
3468 void foo(void) { __asm__ volatile ("" ::); }
3469 EOF
3470
3471 _restrict=
3472 for restrict_keyword in restrict __restrict__ __restrict; do
3473 check_cc <<EOF && _restrict=$restrict_keyword && break
3474 void foo(char * $restrict_keyword p);
3475 EOF
3476 done
3477
3478 check_cc <<EOF && enable pragma_deprecated
3479 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3480 EOF
3481
3482 check_cc <<EOF && enable attribute_packed
3483 struct { int x; } __attribute__((packed)) x;
3484 EOF
3485
3486 check_cc <<EOF && enable attribute_may_alias
3487 union { int x; } __attribute__((may_alias)) x;
3488 EOF
3489
3490 check_cc <<EOF || die "endian test failed"
3491 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3492 EOF
3493 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3494
3495 check_inline_asm inline_asm_labels '"1:\n"'
3496
3497 if enabled alpha; then
3498
3499 check_cflags -mieee
3500
3501 elif enabled arm; then
3502
3503 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3504 enabled thumb && check_cflags -mthumb || check_cflags -marm
3505 nogas=die
3506
3507 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3508 enable vfp_args
3509 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3510 case "${cross_prefix:-$cc}" in
3511 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3512 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3513 __asm__ (".eabi_attribute 28, 1");
3514 int main(void) { return 0; }
3515 EOF
3516 esac
3517 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3518 fi
3519
3520 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3521 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3522 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3523 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3524 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3525 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3526
3527 [ $target_os = linux ] ||
3528 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3529 $ARCH_EXT_LIST_ARM
3530
3531 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3532 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3533
3534 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3535
3536 elif enabled mips; then
3537
3538 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3539
3540 elif enabled parisc; then
3541
3542 if enabled gcc; then
3543 case $($cc -dumpversion) in
3544 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3545 esac
3546 fi
3547
3548 elif enabled ppc; then
3549
3550 enable local_aligned_8 local_aligned_16
3551
3552 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3553 check_inline_asm ibm_asm '"add 0, 0, 0"'
3554 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3555 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3556
3557 # AltiVec flags: The FSF version of GCC differs from the Apple version
3558 if enabled altivec; then
3559 nogas=warn
3560 check_cflags -maltivec -mabi=altivec &&
3561 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3562 check_cflags -faltivec
3563
3564 # check if our compiler supports Motorola AltiVec C API
3565 check_cc <<EOF || disable altivec
3566 $inc_altivec_h
3567 int main(void) {
3568 vector signed int v1 = (vector signed int) { 0 };
3569 vector signed int v2 = (vector signed int) { 1 };
3570 v1 = vec_add(v1, v2);
3571 return 0;
3572 }
3573 EOF
3574
3575 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3576 fi
3577
3578 elif enabled sparc; then
3579
3580 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3581
3582 elif enabled x86; then
3583
3584 check_builtin rdtsc intrin.h "__rdtsc()"
3585 check_builtin mm_empty mmintrin.h "_mm_empty()"
3586
3587 enable local_aligned_8 local_aligned_16
3588
3589 # check whether EBP is available on x86
3590 # As 'i' is stored on the stack, this program will crash
3591 # if the base pointer is used to access it because the
3592 # base pointer is cleared in the inline assembly code.
3593 check_exec_crash <<EOF && enable ebp_available
3594 volatile int i=0;
3595 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3596 return i;
3597 EOF
3598
3599 # check whether EBX is available on x86
3600 check_inline_asm ebx_available '""::"b"(0)' &&
3601 check_inline_asm ebx_available '"":::"%ebx"'
3602
3603 # check whether xmm clobbers are supported
3604 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3605
3606 # check whether binutils is new enough to compile SSSE3/MMXEXT
3607 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3608 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3609
3610 if ! disabled_any asm mmx yasm; then
3611 if check_cmd $yasmexe --version; then
3612 enabled x86_64 && yasm_extra="-m amd64"
3613 yasm_debug="-g dwarf2"
3614 elif check_cmd nasm -v; then
3615 yasmexe=nasm
3616 yasm_debug="-g -F dwarf"
3617 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3618 fi
3619
3620 YASMFLAGS="-f $objformat $yasm_extra"
3621 enabled pic && append YASMFLAGS "-DPIC"
3622 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3623 case "$objformat" in
3624 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3625 esac
3626
3627 check_yasm "movbe ecx, [5]" && enable yasm ||
3628 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3629 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3630 check_yasm "CPU amdnop" && enable cpunop
3631 fi
3632
3633 case "$cpu" in
3634 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3635 disable fast_clz
3636 ;;
3637 esac
3638
3639 fi
3640
3641 if enabled asm; then
3642 as=${gas:=$as}
3643 check_as <<EOF && enable gnu_as || \
3644 $nogas "GNU assembler not found, install gas-preprocessor"
3645 .macro m n
3646 \n: .int 0
3647 .endm
3648 m x
3649 EOF
3650 fi
3651
3652 check_ldflags -Wl,--as-needed
3653
3654 if check_func dlopen; then
3655 ldl=
3656 elif check_func dlopen -ldl; then
3657 ldl=-ldl
3658 fi
3659
3660 if ! disabled network; then
3661 check_type "sys/types.h sys/socket.h" socklen_t
3662 check_type netdb.h "struct addrinfo"
3663 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3664 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3665 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3666 check_type netinet/in.h "struct sockaddr_in6"
3667 check_type poll.h "struct pollfd"
3668 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3669 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3670 check_type netinet/sctp.h "struct sctp_event_subscribe"
3671 check_func getaddrinfo $network_extralibs
3672 check_func getservbyport $network_extralibs
3673 # Prefer arpa/inet.h over winsock2
3674 if check_header arpa/inet.h ; then
3675 check_func closesocket
3676 elif check_header winsock2.h ; then
3677 check_func_headers winsock2.h closesocket -lws2 &&
3678 network_extralibs="-lws2" ||
3679 { check_func_headers winsock2.h closesocket -lws2_32 &&
3680 network_extralibs="-lws2_32"; }
3681 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3682 check_type ws2tcpip.h socklen_t
3683 check_type ws2tcpip.h "struct addrinfo"
3684 check_type ws2tcpip.h "struct group_source_req"
3685 check_type ws2tcpip.h "struct ip_mreq_source"
3686 check_type ws2tcpip.h "struct ipv6_mreq"
3687 check_type winsock2.h "struct pollfd"
3688 check_type ws2tcpip.h "struct sockaddr_in6"
3689 check_type ws2tcpip.h "struct sockaddr_storage"
3690 check_struct winsock2.h "struct sockaddr" sa_len
3691 else
3692 disable network
3693 fi
3694 fi
3695
3696 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3697 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3698
3699 check_func fcntl