build: Check for pod2man instead of perl for manual page generation
[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 EXAMPLE_LIST="
1045 output_example
1046 "
1047
1048 EXTERNAL_LIBRARY_LIST="
1049 avisynth
1050 bzlib
1051 frei0r
1052 gnutls
1053 libcdio
1054 libdc1394
1055 libfaac
1056 libfdk_aac
1057 libfreetype
1058 libgsm
1059 libilbc
1060 libmp3lame
1061 libopencore_amrnb
1062 libopencore_amrwb
1063 libopencv
1064 libopenjpeg
1065 libopus
1066 libpulse
1067 librtmp
1068 libschroedinger
1069 libspeex
1070 libtheora
1071 libvo_aacenc
1072 libvo_amrwbenc
1073 libvorbis
1074 libvpx
1075 libwavpack
1076 libx264
1077 libxavs
1078 libxvid
1079 openssl
1080 x11grab
1081 zlib
1082 "
1083
1084 HWACCEL_LIST="
1085 dxva2
1086 vaapi
1087 vda
1088 vdpau
1089 "
1090 LIBRARY_LIST="
1091 avcodec
1092 avdevice
1093 avfilter
1094 avformat
1095 avresample
1096 avutil
1097 swscale
1098 "
1099
1100 PROGRAM_LIST="
1101 avconv
1102 avplay
1103 avprobe
1104 avserver
1105 "
1106
1107 CONFIG_LIST="
1108 $COMPONENT_LIST
1109 $EXAMPLE_LIST
1110 $EXTERNAL_LIBRARY_LIST
1111 $HWACCEL_LIST
1112 $LIBRARY_LIST
1113 $PROGRAM_LIST
1114 dct
1115 doc
1116 error_resilience
1117 fft
1118 gpl
1119 gray
1120 hardcoded_tables
1121 lsp
1122 lzo
1123 mdct
1124 memalign_hack
1125 network
1126 nonfree
1127 pod2man
1128 pic
1129 rdft
1130 runtime_cpudetect
1131 safe_bitstream_reader
1132 shared
1133 small
1134 sram
1135 static
1136 swscale_alpha
1137 texi2html
1138 thumb
1139 version3
1140 xmm_clobber_test
1141 "
1142
1143 THREADS_LIST='
1144 pthreads
1145 w32threads
1146 '
1147
1148 ATOMICS_LIST='
1149 atomics_gcc
1150 atomics_suncc
1151 atomics_win32
1152 '
1153
1154 ARCH_LIST='
1155 aarch64
1156 alpha
1157 arm
1158 avr32
1159 avr32_ap
1160 avr32_uc
1161 bfin
1162 ia64
1163 m68k
1164 mips
1165 mips64
1166 parisc
1167 ppc
1168 ppc64
1169 s390
1170 sh4
1171 sparc
1172 sparc64
1173 tilegx
1174 tilepro
1175 tomi
1176 x86
1177 x86_32
1178 x86_64
1179 '
1180
1181 ARCH_EXT_LIST_ARM='
1182 armv5te
1183 armv6
1184 armv6t2
1185 neon
1186 vfp
1187 vfpv3
1188 '
1189
1190 ARCH_EXT_LIST_X86='
1191 amd3dnow
1192 amd3dnowext
1193 avx
1194 avx2
1195 fma4
1196 i686
1197 mmx
1198 mmxext
1199 sse
1200 sse2
1201 sse3
1202 sse4
1203 sse42
1204 ssse3
1205 '
1206
1207 ARCH_EXT_LIST="
1208 $ARCH_EXT_LIST_ARM
1209 $ARCH_EXT_LIST_X86
1210 altivec
1211 ppc4xx
1212 vis
1213 "
1214
1215 HAVE_LIST_CMDLINE='
1216 inline_asm
1217 symver
1218 yasm
1219 '
1220
1221 HAVE_LIST_PUB='
1222 bigendian
1223 fast_unaligned
1224 '
1225
1226 MATH_FUNCS="
1227 atanf
1228 atan2f
1229 cbrtf
1230 cosf
1231 exp2
1232 exp2f
1233 expf
1234 isinf
1235 isnan
1236 ldexpf
1237 llrint
1238 llrintf
1239 log2
1240 log2f
1241 log10f
1242 lrint
1243 lrintf
1244 powf
1245 rint
1246 round
1247 roundf
1248 sinf
1249 trunc
1250 truncf
1251 "
1252
1253 HAVE_LIST="
1254 $ARCH_EXT_LIST
1255 $(add_suffix _external $ARCH_EXT_LIST)
1256 $(add_suffix _inline $ARCH_EXT_LIST)
1257 $HAVE_LIST_CMDLINE
1258 $HAVE_LIST_PUB
1259 $THREADS_LIST
1260 $ATOMICS_LIST
1261 $MATH_FUNCS
1262 aligned_malloc
1263 aligned_stack
1264 alsa_asoundlib_h
1265 altivec_h
1266 arpa_inet_h
1267 asm_mod_q
1268 asm_mod_y
1269 atomic_cas_ptr
1270 atomics_native
1271 attribute_may_alias
1272 attribute_packed
1273 cdio_paranoia_h
1274 cdio_paranoia_paranoia_h
1275 closesocket
1276 CommandLineToArgvW
1277 cpunop
1278 CryptGenRandom
1279 dcbzl
1280 dev_bktr_ioctl_bt848_h
1281 dev_bktr_ioctl_meteor_h
1282 dev_ic_bt8xx_h
1283 dev_video_bktr_ioctl_bt848_h
1284 dev_video_meteor_ioctl_meteor_h
1285 direct_h
1286 dlfcn_h
1287 dlopen
1288 dos_paths
1289 dxva_h
1290 ebp_available
1291 ebx_available
1292 fast_64bit
1293 fast_clz
1294 fast_cmov
1295 fcntl
1296 fork
1297 getaddrinfo
1298 gethrtime
1299 getopt
1300 GetProcessAffinityMask
1301 GetProcessMemoryInfo
1302 GetProcessTimes
1303 GetSystemTimeAsFileTime
1304 getrusage
1305 getservbyport
1306 gettimeofday
1307 gnu_as
1308 gsm_h
1309 ibm_asm
1310 inet_aton
1311 io_h
1312 inline_asm_labels
1313 isatty
1314 jack_port_get_latency_range
1315 ldbrx
1316 libdc1394_1
1317 libdc1394_2
1318 local_aligned_16
1319 local_aligned_8
1320 localtime_r
1321 loongson
1322 machine_ioctl_bt848_h
1323 machine_ioctl_meteor_h
1324 machine_rw_barrier
1325 malloc_h
1326 MapViewOfFile
1327 memalign
1328 MemoryBarrier
1329 mkstemp
1330 mm_empty
1331 mmap
1332 mprotect
1333 msvcrt
1334 nanosleep
1335 poll_h
1336 posix_memalign
1337 pragma_deprecated
1338 rdtsc
1339 sched_getaffinity
1340 sdl
1341 SetConsoleTextAttribute
1342 setmode
1343 setrlimit
1344 Sleep
1345 sndio_h
1346 socklen_t
1347 soundcard_h
1348 strerror_r
1349 strptime
1350 strtok_r
1351 struct_addrinfo
1352 struct_group_source_req
1353 struct_ip_mreq_source
1354 struct_ipv6_mreq
1355 struct_pollfd
1356 struct_rusage_ru_maxrss
1357 struct_sockaddr_in6
1358 struct_sockaddr_sa_len
1359 struct_sockaddr_storage
1360 struct_v4l2_frmivalenum_discrete
1361 symver_asm_label
1362 symver_gnu_asm
1363 sync_val_compare_and_swap
1364 sysconf
1365 sysctl
1366 sys_mman_h
1367 sys_param_h
1368 sys_resource_h
1369 sys_select_h
1370 sys_soundcard_h
1371 sys_time_h
1372 sys_un_h
1373 sys_videoio_h
1374 threads
1375 unistd_h
1376 usleep
1377 vdpau_x11
1378 vfp_args
1379 VirtualAlloc
1380 windows_h
1381 winsock2_h
1382 xform_asm
1383 xlib
1384 xmm_clobbers
1385 "
1386
1387 # options emitted with CONFIG_ prefix but not available on the command line
1388 CONFIG_EXTRA="
1389 aandcttables
1390 ac3dsp
1391 audio_frame_queue
1392 dsputil
1393 gcrypt
1394 golomb
1395 gplv3
1396 h263dsp
1397 h264chroma
1398 h264dsp
1399 h264pred
1400 h264qpel
1401 hpeldsp
1402 huffman
1403 lgplv3
1404 lpc
1405 mpegaudio
1406 mpegaudiodsp
1407 mpegvideo
1408 mpegvideoenc
1409 nettle
1410 rangecoder
1411 riffdec
1412 riffenc
1413 rtpdec
1414 rtpenc_chain
1415 sinewin
1416 videodsp
1417 vp3dsp
1418 "
1419
1420 CMDLINE_SELECT="
1421 $ARCH_EXT_LIST
1422 $CONFIG_LIST
1423 $HAVE_LIST_CMDLINE
1424 $THREADS_LIST
1425 asm
1426 cross_compile
1427 debug
1428 extra_warnings
1429 logging
1430 lto
1431 optimizations
1432 "
1433
1434 PATHS_LIST='
1435 bindir
1436 datadir
1437 docdir
1438 incdir
1439 libdir
1440 mandir
1441 prefix
1442 shlibdir
1443 '
1444
1445 CMDLINE_SET="
1446 $PATHS_LIST
1447 ar
1448 arch
1449 as
1450 build_suffix
1451 cc
1452 cpu
1453 cross_prefix
1454 dep_cc
1455 extra_version
1456 host_cc
1457 host_cflags
1458 host_ld
1459 host_ldflags
1460 host_libs
1461 host_os
1462 ld
1463 logfile
1464 malloc_prefix
1465 nm
1466 optflags
1467 pkg_config
1468 random_seed
1469 samples
1470 sysinclude
1471 sysroot
1472 target_exec
1473 target_os
1474 target_path
1475 target_samples
1476 toolchain
1477 "
1478
1479 CMDLINE_APPEND="
1480 extra_cflags
1481 host_cppflags
1482 "
1483
1484 # code dependency declarations
1485
1486 # architecture extensions
1487
1488 armv5te_deps="arm"
1489 armv6_deps="arm"
1490 armv6t2_deps="arm"
1491 neon_deps="arm"
1492 vfp_deps="arm"
1493 vfpv3_deps="vfp"
1494
1495 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1496
1497 altivec_deps="ppc"
1498 ppc4xx_deps="ppc"
1499
1500 vis_deps="sparc"
1501
1502 cpunop_deps="i686"
1503 x86_64_select="i686"
1504 x86_64_suggest="fast_cmov"
1505
1506 amd3dnow_deps="mmx"
1507 amd3dnowext_deps="amd3dnow"
1508 mmx_deps="x86"
1509 mmxext_deps="mmx"
1510 sse_deps="mmxext"
1511 sse2_deps="sse"
1512 sse3_deps="sse2"
1513 ssse3_deps="sse3"
1514 sse4_deps="ssse3"
1515 sse42_deps="sse4"
1516 avx_deps="sse42"
1517 fma4_deps="avx"
1518 avx2_deps="avx"
1519
1520 mmx_external_deps="yasm"
1521 mmx_inline_deps="inline_asm"
1522 mmx_suggest="mmx_external mmx_inline"
1523
1524 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1525 eval dep=\$${ext}_deps
1526 eval ${ext}_external_deps='"${dep}_external"'
1527 eval ${ext}_inline_deps='"${dep}_inline"'
1528 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1529 done
1530
1531 aligned_stack_if_any="ppc x86"
1532 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1533 fast_clz_if_any="alpha avr32 mips ppc x86"
1534 fast_unaligned_if_any="ppc x86"
1535
1536 inline_asm_deps="!tms470"
1537 need_memalign="altivec neon sse"
1538
1539 symver_if_any="symver_asm_label symver_gnu_asm"
1540
1541 log2_deps="!msvcrt"
1542
1543 # subsystems
1544 dct_select="rdft"
1545 error_resilience_select="dsputil"
1546 lpc_select="dsputil"
1547 mdct_select="fft"
1548 rdft_select="fft"
1549 mpegaudio_select="mpegaudiodsp"
1550 mpegaudiodsp_select="dct"
1551 mpegvideo_select="dsputil hpeldsp videodsp"
1552 mpegvideoenc_select="mpegvideo"
1553
1554 # decoders / encoders
1555 aac_decoder_select="mdct sinewin"
1556 aac_encoder_select="audio_frame_queue mdct sinewin"
1557 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1558 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1559 ac3_encoder_select="mdct ac3dsp dsputil"
1560 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1561 aic_decoder_select="dsputil golomb"
1562 alac_encoder_select="lpc"
1563 als_decoder_select="dsputil"
1564 amrnb_decoder_select="lsp"
1565 amrwb_decoder_select="lsp"
1566 amv_decoder_select="dsputil hpeldsp"
1567 ape_decoder_select="dsputil"
1568 asv1_decoder_select="dsputil"
1569 asv1_encoder_select="dsputil"
1570 asv2_decoder_select="dsputil"
1571 asv2_encoder_select="dsputil"
1572 atrac1_decoder_select="mdct sinewin"
1573 atrac3_decoder_select="mdct"
1574 bink_decoder_select="dsputil hpeldsp"
1575 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1576 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1577 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1578 cllc_decoder_select="dsputil"
1579 comfortnoise_encoder_select="lpc"
1580 cook_decoder_select="dsputil mdct sinewin"
1581 cscd_decoder_select="lzo"
1582 cscd_decoder_suggest="zlib"
1583 dca_decoder_select="mdct"
1584 dnxhd_decoder_select="dsputil"
1585 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1586 dvvideo_decoder_select="dsputil"
1587 dvvideo_encoder_select="dsputil"
1588 dxa_decoder_deps="zlib"
1589 eac3_decoder_select="ac3_decoder"
1590 eac3_encoder_select="ac3_encoder"
1591 eamad_decoder_select="aandcttables dsputil mpegvideo"
1592 eatgq_decoder_select="aandcttables dsputil"
1593 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1594 ffv1_decoder_select="dsputil golomb rangecoder"
1595 ffv1_encoder_select="dsputil rangecoder"
1596 ffvhuff_decoder_select="dsputil"
1597 ffvhuff_encoder_select="dsputil huffman"
1598 flac_decoder_select="golomb"
1599 flac_encoder_select="dsputil golomb lpc"
1600 flashsv_decoder_deps="zlib"
1601 flashsv_encoder_deps="zlib"
1602 flashsv2_decoder_deps="zlib"
1603 flv_decoder_select="h263_decoder"
1604 flv_encoder_select="h263_encoder"
1605 fourxm_decoder_select="dsputil"
1606 fraps_decoder_select="dsputil huffman"
1607 g2m_decoder_deps="zlib"
1608 g2m_decoder_select="dsputil"
1609 h261_decoder_select="error_resilience mpegvideo"
1610 h261_encoder_select="aandcttables mpegvideoenc"
1611 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1612 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1613 h263i_decoder_select="h263_decoder"
1614 h263p_encoder_select="h263_encoder"
1615 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1616 h264_decoder_suggest="error_resilience"
1617 hevc_decoder_select="dsputil golomb videodsp"
1618 huffyuv_decoder_select="dsputil"
1619 huffyuv_encoder_select="dsputil huffman"
1620 iac_decoder_select="dsputil fft mdct sinewin"
1621 imc_decoder_select="dsputil fft mdct sinewin"
1622 indeo3_decoder_select="hpeldsp"
1623 interplay_video_decoder_select="hpeldsp"
1624 jpegls_decoder_select="dsputil golomb hpeldsp"
1625 jpegls_encoder_select="golomb"
1626 jv_decoder_select="dsputil"
1627 lagarith_decoder_select="dsputil"
1628 ljpeg_encoder_select="aandcttables mpegvideoenc"
1629 loco_decoder_select="golomb"
1630 mdec_decoder_select="dsputil error_resilience mpegvideo"
1631 metasound_decoder_select="lsp mdct sinewin"
1632 mimic_decoder_select="dsputil hpeldsp"
1633 mjpeg_decoder_select="dsputil hpeldsp"
1634 mjpegb_decoder_select="dsputil hpeldsp"
1635 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1636 mlp_decoder_select="dsputil mlp_parser"
1637 motionpixels_decoder_select="dsputil"
1638 mp1_decoder_select="mpegaudio"
1639 mp1float_decoder_select="mpegaudio"
1640 mp2_decoder_select="mpegaudio"
1641 mp2float_decoder_select="mpegaudio"
1642 mp3_decoder_select="mpegaudio"
1643 mp3adu_decoder_select="mpegaudio"
1644 mp3adufloat_decoder_select="mpegaudio"
1645 mp3float_decoder_select="mpegaudio"
1646 mp3on4_decoder_select="mpegaudio"
1647 mp3on4float_decoder_select="mpegaudio"
1648 mpc7_decoder_select="dsputil mpegaudiodsp"
1649 mpc8_decoder_select="dsputil mpegaudiodsp"
1650 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1651 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1652 mpeg1video_decoder_select="error_resilience mpegvideo"
1653 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1654 mpeg2video_decoder_select="error_resilience mpegvideo"
1655 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1656 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1657 mpeg4_encoder_select="h263_encoder"
1658 msmpeg4v1_decoder_select="h263_decoder"
1659 msmpeg4v2_decoder_select="h263_decoder"
1660 msmpeg4v2_encoder_select="h263_encoder"
1661 msmpeg4v3_decoder_select="h263_decoder"
1662 msmpeg4v3_encoder_select="h263_encoder"
1663 mss2_decoder_select="error_resilience vc1_decoder"
1664 mxpeg_decoder_select="dsputil hpeldsp"
1665 nellymoser_decoder_select="mdct sinewin"
1666 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1667 nuv_decoder_select="dsputil lzo"
1668 png_decoder_deps="zlib"
1669 png_decoder_select="dsputil"
1670 png_encoder_deps="zlib"
1671 png_encoder_select="dsputil"
1672 prores_decoder_select="dsputil"
1673 prores_encoder_select="dsputil"
1674 qcelp_decoder_select="lsp"
1675 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1676 ra_144_encoder_select="audio_frame_queue lpc"
1677 ralf_decoder_select="golomb"
1678 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1679 rv10_encoder_select="h263_encoder"
1680 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1681 rv20_encoder_select="h263_encoder"
1682 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1683 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1684 shorten_decoder_select="golomb"
1685 sipr_decoder_select="lsp"
1686 sp5x_decoder_select="dsputil hpeldsp"
1687 svq1_decoder_select="hpeldsp"
1688 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1689 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1690 svq3_decoder_suggest="error_resilience zlib"
1691 tak_decoder_select="dsputil"
1692 theora_decoder_select="vp3_decoder"
1693 tiff_decoder_suggest="zlib"
1694 tiff_encoder_suggest="zlib"
1695 thp_decoder_select="dsputil hpeldsp"
1696 truehd_decoder_select="mlp_decoder"
1697 truemotion2_decoder_select="dsputil"
1698 truespeech_decoder_select="dsputil"
1699 tscc_decoder_deps="zlib"
1700 twinvq_decoder_select="mdct lsp sinewin"
1701 utvideo_decoder_select="dsputil"
1702 utvideo_encoder_select="dsputil huffman"
1703 vble_decoder_select="dsputil"
1704 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1705 vc1image_decoder_select="vc1_decoder"
1706 vorbis_decoder_select="mdct"
1707 vorbis_encoder_select="mdct"
1708 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1709 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1710 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1711 vp6a_decoder_select="vp6_decoder"
1712 vp6f_decoder_select="vp6_decoder"
1713 vp8_decoder_select="h264pred videodsp"
1714 vp9_decoder_select="videodsp"
1715 webp_decoder_select="vp8_decoder"
1716 wmapro_decoder_select="mdct sinewin"
1717 wmav1_decoder_select="mdct sinewin"
1718 wmav1_encoder_select="mdct sinewin"
1719 wmav2_decoder_select="mdct sinewin"
1720 wmav2_encoder_select="mdct sinewin"
1721 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1722 wmv1_decoder_select="h263_decoder"
1723 wmv1_encoder_select="h263_encoder"
1724 wmv2_decoder_select="h263_decoder videodsp"
1725 wmv2_encoder_select="h263_encoder"
1726 wmv3_decoder_select="vc1_decoder"
1727 wmv3image_decoder_select="wmv3_decoder"
1728 zerocodec_decoder_deps="zlib"
1729 zlib_decoder_deps="zlib"
1730 zlib_encoder_deps="zlib"
1731 zmbv_decoder_deps="zlib"
1732 zmbv_encoder_deps="zlib"
1733
1734 # hardware accelerators
1735 dxva2_deps="dxva2api_h"
1736 vaapi_deps="va_va_h"
1737 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1738 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1739 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1740
1741 h263_vaapi_hwaccel_deps="vaapi"
1742 h263_vaapi_hwaccel_select="h263_decoder"
1743 h263_vdpau_hwaccel_deps="vdpau"
1744 h263_vdpau_hwaccel_select="h263_decoder"
1745 h264_dxva2_hwaccel_deps="dxva2"
1746 h264_dxva2_hwaccel_select="h264_decoder"
1747 h264_vaapi_hwaccel_deps="vaapi"
1748 h264_vaapi_hwaccel_select="h264_decoder"
1749 h264_vda_hwaccel_deps="vda"
1750 h264_vda_hwaccel_select="h264_decoder"
1751 h264_vdpau_hwaccel_deps="vdpau"
1752 h264_vdpau_hwaccel_select="h264_decoder"
1753 mpeg1_vdpau_hwaccel_deps="vdpau"
1754 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1755 mpeg2_dxva2_hwaccel_deps="dxva2"
1756 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1757 mpeg2_vaapi_hwaccel_deps="vaapi"
1758 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1759 mpeg2_vdpau_hwaccel_deps="vdpau"
1760 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1761 mpeg4_vaapi_hwaccel_deps="vaapi"
1762 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1763 mpeg4_vdpau_hwaccel_deps="vdpau"
1764 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1765 vc1_dxva2_hwaccel_deps="dxva2"
1766 vc1_dxva2_hwaccel_select="vc1_decoder"
1767 vc1_vaapi_hwaccel_deps="vaapi"
1768 vc1_vaapi_hwaccel_select="vc1_decoder"
1769 vc1_vdpau_hwaccel_deps="vdpau"
1770 vc1_vdpau_hwaccel_select="vc1_decoder"
1771 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1772 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1773 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1774
1775 # parsers
1776 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1777 mpeg4video_parser_select="error_resilience mpegvideo"
1778 mpegvideo_parser_select="error_resilience mpegvideo"
1779 vc1_parser_select="mpegvideo"
1780
1781 # external libraries
1782 libfaac_encoder_deps="libfaac"
1783 libfaac_encoder_select="audio_frame_queue"
1784 libfdk_aac_decoder_deps="libfdk_aac"
1785 libfdk_aac_encoder_deps="libfdk_aac"
1786 libfdk_aac_encoder_select="audio_frame_queue"
1787 libgsm_decoder_deps="libgsm"
1788 libgsm_encoder_deps="libgsm"
1789 libgsm_ms_decoder_deps="libgsm"
1790 libgsm_ms_encoder_deps="libgsm"
1791 libilbc_decoder_deps="libilbc"
1792 libilbc_encoder_deps="libilbc"
1793 libmp3lame_encoder_deps="libmp3lame"
1794 libmp3lame_encoder_select="audio_frame_queue"
1795 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1796 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1797 libopencore_amrnb_encoder_select="audio_frame_queue"
1798 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1799 libopenjpeg_decoder_deps="libopenjpeg"
1800 libopenjpeg_encoder_deps="libopenjpeg"
1801 libopus_decoder_deps="libopus"
1802 libopus_encoder_deps="libopus"
1803 libopus_encoder_select="audio_frame_queue"
1804 libschroedinger_decoder_deps="libschroedinger"
1805 libschroedinger_encoder_deps="libschroedinger"
1806 libspeex_decoder_deps="libspeex"
1807 libspeex_encoder_deps="libspeex"
1808 libspeex_encoder_select="audio_frame_queue"
1809 libtheora_encoder_deps="libtheora"
1810 libvo_aacenc_encoder_deps="libvo_aacenc"
1811 libvo_aacenc_encoder_select="audio_frame_queue"
1812 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1813 libvorbis_encoder_deps="libvorbis"
1814 libvorbis_encoder_select="audio_frame_queue"
1815 libvpx_vp8_decoder_deps="libvpx"
1816 libvpx_vp8_encoder_deps="libvpx"
1817 libvpx_vp9_decoder_deps="libvpx"
1818 libvpx_vp9_encoder_deps="libvpx"
1819 libwavpack_encoder_deps="libwavpack"
1820 libx264_encoder_deps="libx264"
1821 libxavs_encoder_deps="libxavs"
1822 libxvid_encoder_deps="libxvid"
1823
1824 # demuxers / muxers
1825 ac3_demuxer_select="ac3_parser"
1826 asf_demuxer_select="riffdec"
1827 asf_muxer_select="riffenc"
1828 asf_stream_muxer_select="asf_muxer"
1829 avi_demuxer_select="riffdec"
1830 avi_muxer_select="riffenc"
1831 avisynth_demuxer_deps="avisynth"
1832 avisynth_demuxer_select="riffdec"
1833 caf_demuxer_select="riffdec"
1834 dirac_demuxer_select="dirac_parser"
1835 dxa_demuxer_select="riffdec"
1836 eac3_demuxer_select="ac3_parser"
1837 f4v_muxer_select="mov_muxer"
1838 flac_demuxer_select="flac_parser"
1839 hds_muxer_select="flv_muxer"
1840 hls_muxer_select="mpegts_muxer"
1841 ipod_muxer_select="mov_muxer"
1842 ismv_muxer_select="mov_muxer"
1843 matroska_audio_muxer_select="matroska_muxer"
1844 matroska_demuxer_select="riffdec"
1845 matroska_demuxer_suggest="bzlib lzo zlib"
1846 matroska_muxer_select="riffenc"
1847 mmf_muxer_select="riffenc"
1848 mov_demuxer_select="riffdec"
1849 mov_demuxer_suggest="zlib"
1850 mov_muxer_select="riffenc rtpenc_chain"
1851 mp3_demuxer_select="mpegaudio_parser"
1852 mp4_muxer_select="mov_muxer"
1853 mpegts_muxer_select="adts_muxer latm_muxer"
1854 mpegtsraw_demuxer_select="mpegts_demuxer"
1855 mxf_d10_muxer_select="mxf_muxer"
1856 nut_muxer_select="riffenc"
1857 nuv_demuxer_select="riffdec"
1858 ogg_demuxer_select="golomb"
1859 psp_muxer_select="mov_muxer"
1860 rtp_demuxer_select="sdp_demuxer"
1861 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1862 rtsp_demuxer_select="http_protocol rtpdec"
1863 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1864 sap_demuxer_select="sdp_demuxer"
1865 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1866 sdp_demuxer_select="rtpdec"
1867 smoothstreaming_muxer_select="ismv_muxer"
1868 spdif_muxer_select="aac_parser"
1869 tak_demuxer_select="tak_parser"
1870 tg2_muxer_select="mov_muxer"
1871 tgp_muxer_select="mov_muxer"
1872 w64_demuxer_select="wav_demuxer"
1873 wav_demuxer_select="riffdec"
1874 wav_muxer_select="riffenc"
1875 webm_muxer_select="riffenc"
1876 wtv_demuxer_select="riffdec"
1877 xmv_demuxer_select="riffdec"
1878 xwma_demuxer_select="riffdec"
1879
1880 # indevs / outdevs
1881 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1882 alsa_outdev_deps="alsa_asoundlib_h"
1883 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1884 dv1394_indev_deps="dv1394"
1885 dv1394_indev_select="dv_demuxer"
1886 fbdev_indev_deps="linux_fb_h"
1887 jack_indev_deps="jack_jack_h pthreads"
1888 libcdio_indev_deps="libcdio"
1889 libdc1394_indev_deps="libdc1394"
1890 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1891 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1892 pulse_indev_deps="libpulse"
1893 sndio_indev_deps="sndio_h"
1894 sndio_outdev_deps="sndio_h"
1895 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1896 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1897 vfwcap_indev_extralibs="-lavicap32"
1898 x11grab_indev_deps="x11grab XShmCreateImage"
1899
1900 # protocols
1901 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1902 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1903 ffrtmpcrypt_protocol_select="tcp_protocol"
1904 ffrtmphttp_protocol_deps="!librtmp_protocol"
1905 ffrtmphttp_protocol_select="http_protocol"
1906 gopher_protocol_select="network"
1907 httpproxy_protocol_select="tcp_protocol"
1908 http_protocol_select="tcp_protocol"
1909 https_protocol_select="tls_protocol"
1910 librtmp_protocol_deps="librtmp"
1911 librtmpe_protocol_deps="librtmp"
1912 librtmps_protocol_deps="librtmp"
1913 librtmpt_protocol_deps="librtmp"
1914 librtmpte_protocol_deps="librtmp"
1915 mmsh_protocol_select="http_protocol"
1916 mmst_protocol_select="network"
1917 rtmp_protocol_deps="!librtmp_protocol"
1918 rtmp_protocol_select="tcp_protocol"
1919 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1920 rtmps_protocol_deps="!librtmp_protocol"
1921 rtmps_protocol_select="tls_protocol"
1922 rtmpt_protocol_select="ffrtmphttp_protocol"
1923 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1924 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1925 rtp_protocol_select="udp_protocol"
1926 sctp_protocol_deps="struct_sctp_event_subscribe"
1927 sctp_protocol_select="network"
1928 srtp_protocol_select="rtp_protocol"
1929 tcp_protocol_select="network"
1930 tls_protocol_deps_any="openssl gnutls"
1931 tls_protocol_select="tcp_protocol"
1932 udp_protocol_select="network"
1933 unix_protocol_deps="sys_un_h"
1934 unix_protocol_select="network"
1935
1936 # filters
1937 blackframe_filter_deps="gpl"
1938 boxblur_filter_deps="gpl"
1939 cropdetect_filter_deps="gpl"
1940 delogo_filter_deps="gpl"
1941 drawtext_filter_deps="libfreetype"
1942 frei0r_filter_deps="frei0r dlopen strtok_r"
1943 frei0r_filter_extralibs='$ldl'
1944 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1945 frei0r_src_filter_extralibs='$ldl'
1946 hqdn3d_filter_deps="gpl"
1947 interlace_filter_deps="gpl"
1948 resample_filter_deps="avresample"
1949 ocv_filter_deps="libopencv"
1950 scale_filter_deps="swscale"
1951 yadif_filter_deps="gpl"
1952
1953 # examples
1954 output_example_deps="avcodec avformat avutil swscale"
1955
1956 # libraries
1957 avcodec_deps="avutil"
1958 avdevice_deps="avutil avcodec avformat"
1959 avfilter_deps="avutil"
1960 avformat_deps="avutil avcodec"
1961 avresample_deps="avutil"
1962 swscale_deps="avutil"
1963
1964 # programs
1965 avconv_deps="avcodec avfilter avformat avresample swscale"
1966 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1967 fps_filter null_filter resample_filter scale_filter
1968 setpts_filter trim_filter"
1969 avplay_deps="avcodec avformat avresample swscale sdl"
1970 avplay_select="rdft"
1971 avprobe_deps="avcodec avformat"
1972 avserver_deps="avformat fork !shared"
1973 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1974 avserver_extralibs='$ldl'
1975
1976 # documentation
1977 pod2man_deps="doc"
1978 texi2html_deps="doc"
1979
1980 # default parameters
1981
1982 logfile="config.log"
1983
1984 # installation paths
1985 prefix_default="/usr/local"
1986 bindir_default='${prefix}/bin'
1987 datadir_default='${prefix}/share/avconv'
1988 docdir_default='${prefix}/share/doc/libav'
1989 incdir_default='${prefix}/include'
1990 libdir_default='${prefix}/lib'
1991 mandir_default='${prefix}/share/man'
1992 shlibdir_default="$libdir_default"
1993
1994 # toolchain
1995 ar_default="ar"
1996 cc_default="gcc"
1997 host_cc_default="gcc"
1998 cp_f="cp -f"
1999 ln_s="ln -s -f"
2000 nm_default="nm -g"
2001 objformat="elf"
2002 pkg_config_default=pkg-config
2003 ranlib="ranlib"
2004 strip="strip"
2005 yasmexe="yasm"
2006
2007 nogas=":"
2008
2009 # machine
2010 arch_default=$(uname -m)
2011 cpu="generic"
2012
2013 # OS
2014 target_os_default=$(tolower $(uname -s))
2015 host_os=$target_os_default
2016
2017 # configurable options
2018 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2019
2020 enable asm
2021 enable debug
2022 enable doc
2023 enable optimizations
2024 enable safe_bitstream_reader
2025 enable static
2026 enable swscale_alpha
2027
2028 # By default, enable only those hwaccels that have no external dependencies.
2029 enable dxva2 vdpau
2030
2031 # build settings
2032 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2033 LIBPREF="lib"
2034 LIBSUF=".a"
2035 FULLNAME='$(NAME)$(BUILDSUF)'
2036 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2037 SLIBPREF="lib"
2038 SLIBSUF=".so"
2039 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2040 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2041 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2042 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2043 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2044 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2045
2046 asflags_filter=echo
2047 cflags_filter=echo
2048 ldflags_filter=echo
2049
2050 AS_C='-c'
2051 AS_O='-o $@'
2052 CC_C='-c'
2053 CC_E='-E -o $@'
2054 CC_O='-o $@'
2055 LD_O='-o $@'
2056 LD_LIB='-l%'
2057 LD_PATH='-L'
2058 HOSTCC_C='-c'
2059 HOSTCC_O='-o $@'
2060 HOSTLD_O='-o $@'
2061
2062 host_cflags='-O3 -g'
2063 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2064 host_libs='-lm'
2065 host_cflags_filter=echo
2066 host_ldflags_filter=echo
2067
2068 target_path='$(CURDIR)'
2069
2070 # since the object filename is not given with the -MM flag, the compiler
2071 # is only able to print the basename, and we must add the path ourselves
2072 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2073 DEPFLAGS='-MM'
2074
2075 # find source path
2076 if test -f configure; then
2077 source_path=.
2078 else
2079 source_path=$(cd $(dirname "$0"); pwd)
2080 echo "$source_path" | grep -q '[[:blank:]]' &&
2081 die "Out of tree builds are impossible with whitespace in source path."
2082 test -e "$source_path/config.h" &&
2083 die "Out of tree builds are impossible with config.h in source dir."
2084 fi
2085
2086 for v in "$@"; do
2087 r=${v#*=}
2088 l=${v%"$r"}
2089 r=$(sh_quote "$r")
2090 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2091 done
2092
2093 find_things(){
2094 thing=$1
2095 pattern=$2
2096 file=$source_path/$3
2097 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2098 }
2099
2100 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2101 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2102 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2103 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2104 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2105 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2106 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2107 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2108 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2109 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2110 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2111
2112 ALL_COMPONENTS="
2113 $BSF_LIST
2114 $DECODER_LIST
2115 $DEMUXER_LIST
2116 $ENCODER_LIST
2117 $FILTER_LIST
2118 $HWACCEL_LIST
2119 $INDEV_LIST
2120 $MUXER_LIST
2121 $OUTDEV_LIST
2122 $PARSER_LIST
2123 $PROTOCOL_LIST
2124 "
2125
2126 for n in $COMPONENT_LIST; do
2127 v=$(toupper ${n%s})_LIST
2128 eval enable \$$v
2129 eval ${n}_if_any="\$$v"
2130 done
2131
2132 enable $ARCH_EXT_LIST
2133
2134 die_unknown(){
2135 echo "Unknown option \"$1\"."
2136 echo "See $0 --help for available options."
2137 exit 1
2138 }
2139
2140 print_3_columns() {
2141 cat | tr ' ' '\n' | sort | pr -r -3 -t
2142 }
2143
2144 show_list() {
2145 suffix=_$1
2146 shift
2147 echo $* | sed s/$suffix//g | print_3_columns
2148 exit 0
2149 }
2150
2151 rand_list(){
2152 IFS=', '
2153 set -- $*
2154 unset IFS
2155 for thing; do
2156 comp=${thing%:*}
2157 prob=${thing#$comp}
2158 prob=${prob#:}
2159 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2160 echo "prob ${prob:-0.5}"
2161 printf '%s\n' $comp
2162 done
2163 }
2164
2165 do_random(){
2166 action=$1
2167 shift
2168 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2169 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2170 }
2171
2172 for opt do
2173 optval="${opt#*=}"
2174 case "$opt" in
2175 --extra-ldflags=*)
2176 add_ldflags $optval
2177 ;;
2178 --extra-libs=*)
2179 add_extralibs $optval
2180 ;;
2181 --disable-devices)
2182 disable $INDEV_LIST $OUTDEV_LIST
2183 ;;
2184 --enable-debug=*)
2185 debuglevel="$optval"
2186 ;;
2187 --disable-programs)
2188 disable $PROGRAM_LIST
2189 ;;
2190 --disable-everything)
2191 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2192 ;;
2193 --disable-all)
2194 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2195 disable $LIBRARY_LIST $PROGRAM_LIST doc
2196 ;;
2197 --enable-random|--disable-random)
2198 action=${opt%%-random}
2199 do_random ${action#--} $COMPONENT_LIST
2200 ;;
2201 --enable-random=*|--disable-random=*)
2202 action=${opt%%-random=*}
2203 do_random ${action#--} $optval
2204 ;;
2205 --enable-*=*|--disable-*=*)
2206 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2207 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2208 eval list=\$$(toupper $thing)_LIST
2209 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2210 $action $(filter "$name" $list)
2211 ;;
2212 --enable-?*|--disable-?*)
2213 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2214 if is_in $option $COMPONENT_LIST; then
2215 test $action = disable && action=unset
2216 eval $action \$$(toupper ${option%s})_LIST
2217 elif is_in $option $CMDLINE_SELECT; then
2218 $action $option
2219 else
2220 die_unknown $opt
2221 fi
2222 ;;
2223 --list-*)
2224 NAME="${opt#--list-}"
2225 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2226 NAME=${NAME%s}
2227 eval show_list $NAME \$$(toupper $NAME)_LIST
2228 ;;
2229 --help|-h) show_help
2230 ;;
2231 *)
2232 optname="${opt%%=*}"
2233 optname="${optname#--}"
2234 optname=$(echo "$optname" | sed 's/-/_/g')
2235 if is_in $optname $CMDLINE_SET; then
2236 eval $optname='$optval'
2237 elif is_in $optname $CMDLINE_APPEND; then
2238 append $optname "$optval"
2239 else
2240 die_unknown $opt
2241 fi
2242 ;;
2243 esac
2244 done
2245
2246 disabled logging && logfile=/dev/null
2247
2248 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2249 set >> $logfile
2250
2251 test -n "$cross_prefix" && enable cross_compile
2252
2253 if enabled cross_compile; then
2254 test -n "$arch" && test -n "$target_os" ||
2255 die "Must specify target arch and OS when cross-compiling"
2256 fi
2257
2258 ar_default="${cross_prefix}${ar_default}"
2259 cc_default="${cross_prefix}${cc_default}"
2260 nm_default="${cross_prefix}${nm_default}"
2261 pkg_config_default="${cross_prefix}${pkg_config_default}"
2262 ranlib="${cross_prefix}${ranlib}"
2263 strip="${cross_prefix}${strip}"
2264
2265 sysinclude_default="${sysroot}/usr/include"
2266
2267 case "$toolchain" in
2268 clang-asan)
2269 cc_default="clang"
2270 add_cflags -fsanitize=address
2271 add_ldflags -fsanitize=address
2272 ;;
2273 clang-tsan)
2274 cc_default="clang"
2275 add_cflags -fsanitize=thread -pie
2276 add_ldflags -fsanitize=thread -pie
2277 ;;
2278 gcc-asan)
2279 cc_default="gcc"
2280 add_cflags -fsanitize=address
2281 add_ldflags -fsanitize=address
2282 ;;
2283 gcc-tsan)
2284 cc_default="gcc"
2285 add_cflags -fsanitize=thread -pie -fPIC
2286 add_ldflags -fsanitize=thread -pie -fPIC
2287 ;;
2288 valgrind-massif)
2289 target_exec_default="valgrind"
2290 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2291 ;;
2292 valgrind-memcheck)
2293 target_exec_default="valgrind"
2294 target_exec_args="--track-origins=yes --leak-check=full"
2295 ;;
2296 msvc)
2297 # Check whether the current MSVC version needs the C99 converter.
2298 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2299 # support enough of C99 to build libav. Default to the new
2300 # behaviour if the regexp was unable to match anything, since this
2301 # successfully parses the version number of existing supported
2302 # versions that require the converter (MSVC 2010 and 2012).
2303 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2304 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2305 cc_default="cl"
2306 else
2307 cc_default="c99wrap cl"
2308 fi
2309 ld_default="link"
2310 nm_default="dumpbin -symbols"
2311 ar_default="lib"
2312 target_os_default="win32"
2313 # Use a relative path for TMPDIR. This makes sure all the
2314 # ffconf temp files are written with a relative path, avoiding
2315 # issues with msys/win32 path conversion for MSVC parameters
2316 # such as -Fo<file> or -out:<file>.
2317 TMPDIR=.
2318 ;;
2319 icl)
2320 cc_default="icl"
2321 ld_default="xilink"
2322 nm_default="dumpbin -symbols"
2323 ar_default="xilib"
2324 target_os_default="win32"
2325 TMPDIR=.
2326 ;;
2327 gcov)
2328 add_cflags -fprofile-arcs -ftest-coverage
2329 add_ldflags -fprofile-arcs -ftest-coverage
2330 ;;
2331 hardened)
2332 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2333 add_ldflags -Wl,-z,relro -Wl,-z,now
2334 ;;
2335 ?*)
2336 die "Unknown toolchain $toolchain"
2337 ;;
2338 esac
2339
2340 set_default arch cc pkg_config sysinclude target_exec target_os
2341 enabled cross_compile || host_cc_default=$cc
2342 set_default host_cc
2343
2344 if ! $pkg_config --version >/dev/null 2>&1; then
2345 warn "$pkg_config not found, library detection may fail."
2346 pkg_config=false
2347 fi
2348
2349 exesuf() {
2350 case $1 in
2351 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2352 esac
2353 }
2354
2355 EXESUF=$(exesuf $target_os)
2356 HOSTEXESUF=$(exesuf $host_os)
2357
2358 # set temporary file name
2359 : ${TMPDIR:=$TEMPDIR}
2360 : ${TMPDIR:=$TMP}
2361 : ${TMPDIR:=/tmp}
2362
2363 if ! check_cmd mktemp -u XXXXXX; then
2364 # simple replacement for missing mktemp
2365 # NOT SAFE FOR GENERAL USE
2366 mktemp(){
2367 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2368 }
2369 fi
2370
2371 tmpfile(){
2372 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2373 (set -C; exec > $tmp) 2>/dev/null ||
2374 die "Unable to create temporary file in $TMPDIR."
2375 append TMPFILES $tmp
2376 eval $1=$tmp
2377 }
2378
2379 trap 'rm -f -- $TMPFILES' EXIT
2380
2381 tmpfile TMPASM .asm
2382 tmpfile TMPC .c
2383 tmpfile TMPE $EXESUF
2384 tmpfile TMPH .h
2385 tmpfile TMPO .o
2386 tmpfile TMPS .S
2387 tmpfile TMPSH .sh
2388 tmpfile TMPV .ver
2389
2390 unset -f mktemp
2391
2392 chmod +x $TMPE
2393
2394 # make sure we can execute files in $TMPDIR
2395 cat > $TMPSH 2>> $logfile <<EOF
2396 #! /bin/sh
2397 EOF
2398 chmod +x $TMPSH >> $logfile 2>&1
2399 if ! $TMPSH >> $logfile 2>&1; then
2400 cat <<EOF
2401 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2402 variable to another directory and make sure that it is not mounted noexec.
2403 EOF
2404 die "Sanity test failed."
2405 fi
2406
2407 ccc_flags(){
2408 for flag; do
2409 case $flag in
2410 -std=c99) echo -c99 ;;
2411 -mcpu=*) echo -arch ${flag#*=} ;;
2412 -mieee) echo -ieee ;;
2413 -O*|-fast) echo $flag ;;
2414 -fno-math-errno) echo -assume nomath_errno ;;
2415 -g) echo -g3 ;;
2416 -Wall) echo -msg_enable level2 ;;
2417 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2418 -Wl,*) echo $flag ;;
2419 -f*|-W*) ;;
2420 *) echo $flag ;;
2421 esac
2422 done
2423 }
2424
2425 cparser_flags(){
2426 for flag; do
2427 case $flag in
2428 -Wno-switch) echo -Wno-switch-enum ;;
2429 -Wno-format-zero-length) ;;
2430 -Wdisabled-optimization) ;;
2431 -Wno-pointer-sign) echo -Wno-other ;;
2432 *) echo $flag ;;
2433 esac
2434 done
2435 }
2436
2437 msvc_common_flags(){
2438 for flag; do
2439 case $flag in
2440 # In addition to specifying certain flags under the compiler
2441 # specific filters, they must be specified here as well or else the
2442 # generic catch all at the bottom will print the original flag.
2443 -Wall) ;;
2444 -std=c99) ;;
2445 # Common flags
2446 -fomit-frame-pointer) ;;
2447 -g) echo -Z7 ;;
2448 -fno-math-errno) ;;
2449 -fno-common) ;;
2450 -fno-signed-zeros) ;;
2451 -fPIC) ;;
2452 -mthumb) ;;
2453 -march=*) ;;
2454 -lz) echo zlib.lib ;;
2455 -lavifil32) echo vfw32.lib ;;
2456 -lavicap32) echo vfw32.lib user32.lib ;;
2457 -l*) echo ${flag#-l}.lib ;;
2458 *) echo $flag ;;
2459 esac
2460 done
2461 }
2462
2463 msvc_flags(){
2464 msvc_common_flags "$@"
2465 for flag; do
2466 case $flag in
2467 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2468 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2469 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2470 -wd4273 ;;
2471 esac
2472 done
2473 }
2474
2475 icl_flags(){
2476 msvc_common_flags "$@"
2477 for flag; do
2478 case $flag in
2479 # Despite what Intel's documentation says -Wall, which is supported
2480 # on Windows, does enable remarks so disable them here.
2481 -Wall) echo $flag -Qdiag-disable:remark ;;
2482 -std=c99) echo -Qstd=c99 ;;
2483 esac
2484 done
2485 }
2486
2487 pgi_flags(){
2488 for flag; do
2489 case $flag in
2490 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2491 -fomit-frame-pointer) echo -Mnoframe ;;
2492 -g) echo -gopt ;;
2493 *) echo $flag ;;
2494 esac
2495 done
2496 }
2497
2498 suncc_flags(){
2499 for flag; do
2500 case $flag in
2501 -march=*|-mcpu=*)
2502 case "${flag#*=}" in
2503 native) echo -xtarget=native ;;
2504 v9|niagara) echo -xarch=sparc ;;
2505 ultrasparc) echo -xarch=sparcvis ;;
2506 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2507 i586|pentium) echo -xchip=pentium ;;
2508 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2509 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2510 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2511 pentium4*) echo -xtarget=pentium4 ;;
2512 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2513 *-sse3) echo -xarch=sse3 ;;
2514 core2) echo -xarch=ssse3 -xchip=core2 ;;
2515 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2516 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2517 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2518 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2519 k8|opteron|athlon64|athlon-fx)
2520 echo -xarch=sse2a ;;
2521 athlon*) echo -xarch=pentium_proa ;;
2522 esac
2523 ;;
2524 -std=c99) echo -xc99 ;;
2525 -fomit-frame-pointer) echo -xregs=frameptr ;;
2526 -fPIC) echo -KPIC -xcode=pic32 ;;
2527 -W*,*) echo $flag ;;
2528 -f*-*|-W*|-mimpure-text) ;;
2529 -shared) echo -G ;;
2530 *) echo $flag ;;
2531 esac
2532 done
2533 }
2534
2535 tms470_flags(){
2536 for flag; do
2537 case $flag in
2538 -march=*|-mcpu=*)
2539 case "${flag#*=}" in
2540 armv7-a|cortex-a*) echo -mv=7a8 ;;
2541 armv7-r|cortex-r*) echo -mv=7r4 ;;
2542 armv7-m|cortex-m*) echo -mv=7m3 ;;
2543 armv6*|arm11*) echo -mv=6 ;;
2544 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2545 echo -mv=5e ;;
2546 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2547 esac
2548 ;;
2549 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2550 -mfpu=vfp) echo --float_support=vfpv2 ;;
2551 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2552 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2553 -msoft-float) echo --float_support=vfplib ;;
2554 -O[0-3]|-mf=*) echo $flag ;;
2555 -g) echo -g -mn ;;
2556 -pds=*) echo $flag ;;
2557 -D*|-I*) echo $flag ;;
2558 --gcc|--abi=*) echo $flag ;;
2559 -me) echo $flag ;;
2560 esac
2561 done
2562 }
2563
2564 probe_cc(){
2565 pfx=$1
2566 _cc=$2
2567
2568 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2569 unset _ld_o _ldflags _ld_lib _ld_path
2570 unset _depflags _DEPCMD _DEPFLAGS
2571 _flags_filter=echo
2572
2573 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2574 _type=llvm_gcc
2575 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2576 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2577 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2578 _cflags_speed='-O3'
2579 _cflags_size='-Os'
2580 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2581 _type=gcc
2582 gcc_version=$($_cc --version | head -n1)
2583 gcc_basever=$($_cc -dumpversion)
2584 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2585 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2586 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2587 if ! $_cc -dumpversion | grep -q '^2\.'; then
2588 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2589 fi
2590 _cflags_speed='-O3'
2591 _cflags_size='-Os'
2592 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2593 _type=icc
2594 _ident=$($_cc --version | head -n1)
2595 _depflags='-MMD'
2596 _cflags_speed='-O3'
2597 _cflags_size='-Os'
2598 _cflags_noopt='-O1'
2599 elif $_cc -v 2>&1 | grep -q xlc; then
2600 _type=xlc
2601 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2602 _cflags_speed='-O5'
2603 _cflags_size='-O5 -qcompact'
2604 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2605 _type=ccc
2606 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2607 _DEPFLAGS='-M'
2608 _cflags_speed='-fast'
2609 _cflags_size='-O1'
2610 _flags_filter=ccc_flags
2611 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2612 test -d "$sysroot" || die "No valid sysroot specified."
2613 _type=armcc
2614 _ident=$($_cc --vsn | head -n1)
2615 armcc_conf="$PWD/armcc.conf"
2616 $_cc --arm_linux_configure \
2617 --arm_linux_config_file="$armcc_conf" \
2618 --configure_sysroot="$sysroot" \
2619 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2620 die "Error creating armcc configuration file."
2621 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2622 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2623 as_default="${cross_prefix}gcc"
2624 _depflags='-MMD'
2625 _cflags_speed='-O3'
2626 _cflags_size='-Os'
2627 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2628 _type=tms470
2629 _ident=$($_cc -version | head -n1 | tr -s ' ')
2630 _flags='--gcc --abi=eabi -me'
2631 _cc_e='-ppl -fe=$@'
2632 _cc_o='-fe=$@'
2633 _depflags='-ppa -ppd=$(@:.o=.d)'
2634 _cflags_speed='-O3 -mf=5'
2635 _cflags_size='-O3 -mf=2'
2636 _flags_filter=tms470_flags
2637 elif $_cc -v 2>&1 | grep -q clang; then
2638 _type=clang
2639 _ident=$($_cc --version | head -n1)
2640 _depflags='-MMD'
2641 _cflags_speed='-O3'
2642 _cflags_size='-Os'
2643 elif $_cc -V 2>&1 | grep -q Sun; then
2644 _type=suncc
2645 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2646 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2647 _DEPFLAGS='-xM1 -xc99'
2648 _ldflags='-std=c99'
2649 _cflags_speed='-O5'
2650 _cflags_size='-O5 -xspace'
2651 _flags_filter=suncc_flags
2652 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2653 _type=pathscale
2654 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2655 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2656 _cflags_speed='-O2'
2657 _cflags_size='-Os'
2658 _flags_filter='filter_out -Wdisabled-optimization'
2659 elif $_cc -v 2>&1 | grep -q Open64; then
2660 _type=open64
2661 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2662 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2663 _cflags_speed='-O2'
2664 _cflags_size='-Os'
2665 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2666 elif $_cc -V 2>&1 | grep -q Portland; then
2667 _type=pgi
2668 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2669 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2670 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2671 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2672 _cflags_noopt="-O1"
2673 _flags_filter=pgi_flags
2674 elif $_cc 2>&1 | grep -q Microsoft; then
2675 _type=msvc
2676 _ident=$($cc 2>&1 | head -n1)
2677 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2678 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2679 _cflags_speed="-O2"
2680 _cflags_size="-O1"
2681 if $_cc 2>&1 | grep -q Linker; then
2682 _ld_o='-out:$@'
2683 else
2684 _ld_o='-Fe$@'
2685 fi
2686 _cc_o='-Fo$@'
2687 _cc_e='-P -Fi$@'
2688 _flags_filter=msvc_flags
2689 _ld_lib='lib%.a'
2690 _ld_path='-libpath:'
2691 _flags='-nologo'
2692 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2693 if [ $pfx = hostcc ]; then
2694 append _cflags -Dsnprintf=_snprintf
2695 fi
2696 elif $_cc 2>&1 | grep -q Intel; then
2697 _type=icl
2698 _ident=$($cc 2>&1 | head -n1)
2699 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2700 # Not only is O3 broken on 13.x+ but it is slower on all previous
2701 # versions (tested) as well.
2702 _cflags_speed="-O2"
2703 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2704 if $_cc 2>&1 | grep -q Linker; then
2705 _ld_o='-out:$@'
2706 else
2707 _ld_o='-Fe$@'
2708 fi
2709 _cc_o='-Fo$@'
2710 _cc_e='-P'
2711 _flags_filter=icl_flags
2712 _ld_lib='lib%.a'
2713 _ld_path='-libpath:'
2714 # -Qdiag-error to make icl error when seeing certain unknown arguments
2715 _flags='-nologo -Qdiag-error:4044,10157'
2716 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2717 # with MSVC which enables it by default.
2718 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2719 if [ $pfx = hostcc ]; then
2720 append _cflags -Dsnprintf=_snprintf
2721 fi
2722 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2723 _type=cparser
2724 _ident=$($_cc --version | head -n1)
2725 _depflags='-MMD'
2726 _cflags_speed='-O4'
2727 _cflags_size='-O2'
2728 _flags_filter=cparser_flags
2729 fi
2730
2731 eval ${pfx}_type=\$_type
2732 eval ${pfx}_ident=\$_ident
2733 }
2734
2735 set_ccvars(){
2736 eval ${1}_C=\${_cc_c-\${${1}_C}}
2737 eval ${1}_E=\${_cc_e-\${${1}_E}}
2738 eval ${1}_O=\${_cc_o-\${${1}_O}}
2739
2740 if [ -n "$_depflags" ]; then
2741 eval ${1}_DEPFLAGS=\$_depflags
2742 else
2743 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2744 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2745 eval DEP${1}FLAGS=\$_flags
2746 fi
2747 }
2748
2749 probe_cc cc "$cc"
2750 cflags_filter=$_flags_filter
2751 cflags_speed=$_cflags_speed
2752 cflags_size=$_cflags_size
2753 cflags_noopt=$_cflags_noopt
2754 add_cflags $_flags $_cflags
2755 cc_ldflags=$_ldflags
2756 set_ccvars CC
2757
2758 probe_cc hostcc "$host_cc"
2759 host_cflags_filter=$_flags_filter
2760 add_host_cflags $_flags $_cflags
2761 set_ccvars HOSTCC
2762
2763 test -n "$cc_type" && enable $cc_type ||
2764 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2765
2766 : ${as_default:=$cc}
2767 : ${dep_cc_default:=$cc}
2768 : ${ld_default:=$cc}
2769 : ${host_ld_default:=$host_cc}
2770 set_default ar as dep_cc ld host_ld
2771
2772 probe_cc as "$as"
2773 asflags_filter=$_flags_filter
2774 add_asflags $_flags $_cflags
2775 set_ccvars AS
2776
2777 probe_cc ld "$ld"
2778 ldflags_filter=$_flags_filter
2779 add_ldflags $_flags $_ldflags
2780 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2781 LD_O=${_ld_o-$LD_O}
2782 LD_LIB=${_ld_lib-$LD_LIB}
2783 LD_PATH=${_ld_path-$LD_PATH}
2784
2785 probe_cc hostld "$host_ld"
2786 host_ldflags_filter=$_flags_filter
2787 add_host_ldflags $_flags $_ldflags
2788 HOSTLD_O=${_ld_o-$HOSTLD_O}
2789
2790 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2791 probe_cc depcc "$dep_cc"
2792 CCDEP=${_DEPCMD:-$DEPCMD}
2793 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2794 DEPCCFLAGS=$_flags
2795 fi
2796
2797 if $ar 2>&1 | grep -q Microsoft; then
2798 arflags="-nologo"
2799 ar_o='-out:$@'
2800 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2801 arflags="rq"
2802 ar_o='$@'
2803 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2804 arflags='-Xany -r -c'
2805 ar_o='$@'
2806 else
2807 arflags="rc"
2808 ar_o='$@'
2809 fi
2810
2811 add_cflags $extra_cflags
2812 add_asflags $extra_cflags
2813
2814 if test -n "$sysroot"; then
2815 case "$cc_type" in
2816 gcc|llvm_gcc|clang)
2817 add_cppflags --sysroot="$sysroot"
2818 add_ldflags --sysroot="$sysroot"
2819 ;;
2820 tms470)
2821 add_cppflags -I"$sysinclude"
2822 add_ldflags --sysroot="$sysroot"
2823 ;;
2824 esac
2825 fi
2826
2827 if test "$cpu" = host; then
2828 enabled cross_compile &&
2829 die "--cpu=host makes no sense when cross-compiling."
2830
2831 case "$cc_type" in
2832 gcc|llvm_gcc)
2833 check_native(){
2834 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2835 sed -n "/cc1.*$1=/{
2836 s/.*$1=\\([^ ]*\\).*/\\1/
2837 p
2838 q
2839 }" $TMPE
2840 }
2841 cpu=$(check_native -march || check_native -mcpu)
2842 ;;
2843 esac
2844
2845 test "${cpu:-host}" = host &&
2846 die "--cpu=host not supported with compiler $cc"
2847 fi
2848
2849 # Deal with common $arch aliases
2850 case "$arch" in
2851 aarch64|arm64)
2852 arch="aarch64"
2853 ;;
2854 arm*)
2855 arch="arm"
2856 ;;
2857 mips*|IP*)
2858 arch="mips"
2859 ;;
2860 parisc*|hppa*)
2861 arch="parisc"
2862 ;;
2863 "Power Macintosh"|ppc*|powerpc*)
2864 arch="ppc"
2865 ;;
2866 s390|s390x)
2867 arch="s390"
2868 ;;
2869 sh4|sh)
2870 arch="sh4"
2871 ;;
2872 sun4u|sparc*)
2873 arch="sparc"
2874 ;;
2875 tilegx|tile-gx)
2876 arch="tilegx"
2877 ;;
2878 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2879 arch="x86"
2880 ;;
2881 esac
2882
2883 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2884 enable $arch
2885
2886 # Add processor-specific flags
2887 if enabled aarch64; then
2888
2889 case $cpu in
2890 armv*)
2891 cpuflags="-march=$cpu"
2892 ;;
2893 *)
2894 cpuflags="-mcpu=$cpu"
2895 ;;
2896 esac
2897
2898 elif enabled alpha; then
2899
2900 cpuflags="-mcpu=$cpu"
2901
2902 elif enabled arm; then
2903
2904 check_arm_arch() {
2905 check_cpp_condition stddef.h \
2906 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2907 $cpuflags
2908 }
2909
2910 probe_arm_arch() {
2911 if check_arm_arch 4; then echo armv4;
2912 elif check_arm_arch 4T; then echo armv4t;
2913 elif check_arm_arch 5; then echo armv5;
2914 elif check_arm_arch 5E; then echo armv5e;
2915 elif check_arm_arch 5T; then echo armv5t;
2916 elif check_arm_arch 5TE; then echo armv5te;
2917 elif check_arm_arch 5TEJ; then echo armv5te;
2918 elif check_arm_arch 6; then echo armv6;
2919 elif check_arm_arch 6J; then echo armv6j;
2920 elif check_arm_arch 6K; then echo armv6k;
2921 elif check_arm_arch 6Z; then echo armv6z;
2922 elif check_arm_arch 6ZK; then echo armv6zk;
2923 elif check_arm_arch 6T2; then echo armv6t2;
2924 elif check_arm_arch 7; then echo armv7;
2925 elif check_arm_arch 7A 7_A; then echo armv7-a;
2926 elif check_arm_arch 7R 7_R; then echo armv7-r;
2927 elif check_arm_arch 7M 7_M; then echo armv7-m;
2928 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2929 elif check_arm_arch 8A 8_A; then echo armv8-a;
2930 fi
2931 }
2932
2933 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2934
2935 case $cpu in
2936 armv*)
2937 cpuflags="-march=$cpu"
2938 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2939 ;;
2940 *)
2941 cpuflags="-mcpu=$cpu"
2942 case $cpu in
2943 cortex-a*) subarch=armv7a ;;
2944 cortex-r*) subarch=armv7r ;;
2945 cortex-m*) enable thumb; subarch=armv7m ;;
2946 arm11*) subarch=armv6 ;;
2947 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2948 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2949 *) subarch=$(probe_arm_arch) ;;
2950 esac
2951 ;;
2952 esac
2953
2954 case "$subarch" in
2955 armv5t*) enable fast_clz ;;
2956 armv[6-8]*) enable fast_clz fast_unaligned ;;
2957 esac
2958
2959 elif enabled avr32; then
2960
2961 case $cpu in
2962 ap7[02]0[0-2])
2963 subarch="avr32_ap"
2964 cpuflags="-mpart=$cpu"
2965 ;;
2966 ap)
2967 subarch="avr32_ap"
2968 cpuflags="-march=$cpu"
2969 ;;
2970 uc3[ab]*)
2971 subarch="avr32_uc"
2972 cpuflags="-mcpu=$cpu"
2973 ;;
2974 uc)
2975 subarch="avr32_uc"
2976 cpuflags="-march=$cpu"
2977 ;;
2978 esac
2979
2980 elif enabled bfin; then
2981
2982 cpuflags="-mcpu=$cpu"
2983
2984 elif enabled mips; then
2985
2986 cpuflags="-march=$cpu"
2987
2988 elif enabled ppc; then
2989
2990 case $(tolower $cpu) in
2991 601|ppc601|powerpc601)
2992 cpuflags="-mcpu=601"
2993 disable altivec
2994 ;;
2995 603*|ppc603*|powerpc603*)
2996 cpuflags="-mcpu=603"
2997 disable altivec
2998 ;;
2999 604*|ppc604*|powerpc604*)
3000 cpuflags="-mcpu=604"
3001 disable altivec
3002 ;;
3003 g3|75*|ppc75*|powerpc75*)
3004 cpuflags="-mcpu=750"
3005 disable altivec
3006 ;;
3007 g4|745*|ppc745*|powerpc745*)
3008 cpuflags="-mcpu=7450"
3009 ;;
3010 74*|ppc74*|powerpc74*)
3011 cpuflags="-mcpu=7400"
3012 ;;
3013 g5|970|ppc970|powerpc970)
3014 cpuflags="-mcpu=970"
3015 ;;
3016 power[3-7]*)
3017 cpuflags="-mcpu=$cpu"
3018 ;;
3019 cell)
3020 cpuflags="-mcpu=cell"
3021 enable ldbrx
3022 ;;
3023 e500mc)
3024 cpuflags="-mcpu=e500mc"
3025 disable altivec
3026 ;;
3027 e500v2)
3028 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3029 disable altivec
3030 ;;
3031 e500)
3032 cpuflags="-mcpu=8540 -mhard-float"
3033 disable altivec
3034 ;;
3035 esac
3036
3037 elif enabled sparc; then
3038
3039 case $cpu in
3040 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3041 cpuflags="-mcpu=$cpu"
3042 disable vis
3043 ;;
3044 ultrasparc*|niagara[234])
3045 cpuflags="-mcpu=$cpu"
3046 ;;
3047 esac
3048
3049 elif enabled x86; then
3050
3051 case $cpu in
3052 i[345]86|pentium)
3053 cpuflags="-march=$cpu"
3054 disable mmx
3055 ;;
3056 # targets that do NOT support nopl and conditional mov (cmov)
3057 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3058 cpuflags="-march=$cpu"
3059 disable i686
3060 ;;
3061 # targets that do support nopl and conditional mov (cmov)
3062 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3063 cpuflags="-march=$cpu"
3064 enable i686
3065 enable fast_cmov
3066 ;;
3067 # targets that do support conditional mov but on which it's slow
3068 pentium4|pentium4m|prescott|nocona)
3069 cpuflags="-march=$cpu"
3070 enable i686
3071 disable fast_cmov
3072 ;;
3073 esac
3074
3075 fi
3076
3077 if [ "$cpu" != generic ]; then
3078 add_cflags $cpuflags
3079 add_asflags $cpuflags
3080 fi
3081
3082 # compiler sanity check
3083 check_exec <<EOF
3084 int main(void){ return 0; }
3085 EOF
3086 if test "$?" != 0; then
3087 echo "$cc is unable to create an executable file."
3088 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3089 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3090 echo "Only do this if you know what cross compiling means."
3091 fi
3092 die "C compiler test failed."
3093 fi
3094
3095 add_cppflags -D_ISOC99_SOURCE
3096 check_cflags -std=c99
3097 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3098 #include <stdlib.h>
3099 EOF
3100 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3101 #include <stdlib.h>
3102 EOF
3103
3104 check_host_cflags -std=c99
3105 check_host_cflags -Wall
3106
3107 check_64bit(){
3108 arch32=$1
3109 arch64=$2
3110 expr=$3
3111 check_code cc "" "int test[2*($expr) - 1]" &&
3112 subarch=$arch64 || subarch=$arch32
3113 }
3114
3115 case "$arch" in
3116 aarch64|alpha|ia64)
3117 spic=$shared
3118 ;;
3119 mips)
3120 check_64bit mips mips64 '_MIPS_SIM > 1'
3121 spic=$shared
3122 ;;
3123 parisc)
3124 check_64bit parisc parisc64 'sizeof(void *) > 4'
3125 spic=$shared
3126 ;;
3127 ppc)
3128 check_64bit ppc ppc64 'sizeof(void *) > 4'
3129 spic=$shared
3130 ;;
3131 sparc)
3132 check_64bit sparc sparc64 'sizeof(void *) > 4'
3133 spic=$shared
3134 ;;
3135 x86)
3136 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3137 if test "$subarch" = "x86_64"; then
3138 spic=$shared
3139 fi
3140 ;;
3141 esac
3142
3143 enable $subarch
3144 enabled spic && enable_weak pic
3145
3146 # OS specific
3147 case $target_os in
3148 aix)
3149 SHFLAGS=-shared
3150 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3151 enabled shared && add_ldflags -Wl,-brtl
3152 ;;
3153 haiku)
3154 prefix_default="/boot/common"
3155 network_extralibs="-lnetwork"
3156 host_libs=
3157 ;;
3158 sunos)
3159 SHFLAGS='-shared -Wl,-h,$$(@F)'
3160 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3161 network_extralibs="-lsocket -lnsl"
3162 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3163 # When using suncc to build, the Solaris linker will mark
3164 # an executable with each instruction set encountered by
3165 # the Solaris assembler. As our libraries contain their own
3166 # guards for processor-specific code, instead suppress
3167 # generation of the HWCAPS ELF section on Solaris x86 only.
3168 enabled_all suncc x86 &&
3169 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3170 add_ldflags -Wl,-M,mapfile
3171 nm_default='nm -P -g'
3172 ;;
3173 netbsd)
3174 disable symver
3175 oss_indev_extralibs="-lossaudio"
3176 oss_outdev_extralibs="-lossaudio"
3177 ;;
3178 openbsd|bitrig)
3179 disable symver
3180 SHFLAGS='-shared'
3181 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3182 SLIB_INSTALL_LINKS=
3183 oss_indev_extralibs="-lossaudio"
3184 oss_outdev_extralibs="-lossaudio"
3185 ;;
3186 dragonfly)
3187 disable symver
3188 ;;
3189 freebsd)
3190 ;;
3191 bsd/os)
3192 add_extralibs -lpoll -lgnugetopt
3193 ;;
3194 darwin)
3195 gas="gas-preprocessor.pl $cc"
3196 enabled ppc && add_asflags -force_cpusubtype_ALL
3197 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3198 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3199 add_ldflags -Wl,-dynamic,-search_paths_first
3200 SLIBSUF=".dylib"
3201 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3202 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3203 objformat="macho"
3204 enabled x86_64 && objformat="macho64"
3205 enabled_any pic shared ||
3206 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3207 ;;
3208 mingw32*)
3209 if test $target_os = "mingw32ce"; then
3210 disable network
3211 else
3212 target_os=mingw32
3213 fi
3214 LIBTARGET=i386
3215 if enabled x86_64; then
3216 LIBTARGET="i386:x86-64"
3217 elif enabled arm; then
3218 LIBTARGET=arm-wince
3219 fi
3220 check_ldflags -Wl,--nxcompat
3221 check_ldflags -Wl,--dynamicbase
3222 shlibdir_default="$bindir_default"
3223 SLIBPREF=""
3224 SLIBSUF=".dll"
3225 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3226 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3227 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3228 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3229 SLIB_INSTALL_LINKS=
3230 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3231 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3232 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3233 objformat="win32"
3234 dlltool="${cross_prefix}dlltool"
3235 ranlib=:
3236 enable dos_paths
3237 ;;
3238 win32|win64)
3239 disable symver
3240 if enabled shared; then
3241 # Link to the import library instead of the normal static library
3242 # for shared libs.
3243 LD_LIB='%.lib'
3244 # Cannot build both shared and static libs with MSVC or icl.
3245 disable static
3246 fi
3247 shlibdir_default="$bindir_default"
3248 SLIBPREF=""
3249 SLIBSUF=".dll"
3250 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3251 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3252 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3253 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3254 SLIB_INSTALL_LINKS=
3255 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3256 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3257 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3258 objformat="win32"
3259 ranlib=:
3260 enable dos_paths
3261 ;;
3262 cygwin*)
3263 target_os=cygwin
3264 shlibdir_default="$bindir_default"
3265 SLIBPREF="cyg"
3266 SLIBSUF=".dll"
3267 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3268 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3269 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3270 SLIB_INSTALL_LINKS=
3271 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3272 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3273 objformat="win32"
3274 enable dos_paths
3275 ;;
3276 *-dos|freedos|opendos)
3277 network_extralibs="-lsocket"
3278 objformat="coff"
3279 enable dos_paths
3280 add_cppflags -U__STRICT_ANSI__
3281 ;;
3282 linux)
3283 enable dv1394
3284 ;;
3285 irix*)
3286 target_os=irix
3287 ranlib="echo ignoring ranlib"
3288 ;;
3289 os/2*)
3290 ln_s="cp -f"
3291 objformat="aout"
3292 add_cppflags -D_GNU_SOURCE
3293 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3294 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3295 LIBSUF="_s.a"
3296 SLIBPREF=""
3297 SLIBSUF=".dll"
3298 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3299 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3300 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3301 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3302 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3303 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3304 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3305 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3306 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3307 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3308 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3309 enable dos_paths
3310 ;;
3311 gnu/kfreebsd)
3312 add_cppflags -D_BSD_SOURCE
3313 ;;
3314 gnu)
3315 ;;
3316 qnx)
3317 add_cppflags -D_QNX_SOURCE
3318 network_extralibs="-lsocket"
3319 ;;
3320 symbian)
3321 SLIBSUF=".dll"
3322 enable dos_paths
3323 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3324 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3325 add_ldflags -Wl,--target1-abs,--no-undefined \
3326 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3327 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3328 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3329 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3330 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3331 ;;
3332 osf1)
3333 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3334 ;;
3335 minix)
3336 ;;
3337 plan9)
3338 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3339 -D_REENTRANT_SOURCE \
3340 -D_RESEARCH_SOURCE \
3341 -DFD_SETSIZE=96 \
3342 -DHAVE_SOCK_OPTS
3343 add_compat strtod.o strtod=avpriv_strtod
3344 network_extralibs='-lbsd'
3345 exeobjs=compat/plan9/main.o
3346 disable avserver
3347 cp_f='cp'
3348 ;;
3349 none)
3350 ;;
3351 *)
3352 die "Unknown OS '$target_os'."
3353 ;;
3354 esac
3355
3356 # determine libc flavour
3357
3358 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3359 if check_cpp_condition features.h "defined __UCLIBC__"; then
3360 libc_type=uclibc
3361 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3362 elif check_cpp_condition features.h "defined __GLIBC__"; then
3363 libc_type=glibc
3364 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3365 # MinGW headers can be installed on Cygwin, so check for newlib first.
3366 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3367 libc_type=newlib
3368 add_cppflags -U__STRICT_ANSI__
3369 elif check_header _mingw.h; then
3370 libc_type=mingw
3371 check_cpp_condition _mingw.h \
3372 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3373 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3374 die "ERROR: MinGW runtime version must be >= 3.15."
3375 add_cppflags -U__STRICT_ANSI__
3376 elif check_func_headers stdlib.h _get_doserrno; then
3377 libc_type=msvcrt
3378 add_compat strtod.o strtod=avpriv_strtod
3379 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3380 _snprintf=avpriv_snprintf \
3381 vsnprintf=avpriv_vsnprintf
3382 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3383 # 0x601 by default unless something else is set by the user.
3384 # This can easily lead to us detecting functions only present
3385 # in such new versions and producing binaries requiring windows 7.0.
3386 # Therefore explicitly set the default to XP unless the user has
3387 # set something else on the command line.
3388 check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3389 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3390 libc_type=klibc
3391 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3392 libc_type=bionic
3393 add_compat strtod.o strtod=avpriv_strtod
3394 fi
3395
3396 test -n "$libc_type" && enable $libc_type
3397
3398 # hacks for compiler/libc/os combinations
3399
3400 if enabled_all tms470 glibc; then
3401 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3402 add_cppflags -D__USER_LABEL_PREFIX__=
3403 add_cppflags -D__builtin_memset=memset
3404 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3405 add_cflags -pds=48 # incompatible redefinition of macro
3406 fi
3407
3408 if enabled_all ccc glibc; then
3409 add_ldflags -Wl,-z,now # calls to libots crash without this
3410 fi
3411
3412 esc(){
3413 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3414 }
3415
3416 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3417
3418 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3419
3420 set_default $PATHS_LIST
3421 set_default nm
3422
3423 # we need to build at least one lib type
3424 if ! enabled_any static shared; then
3425 cat <<EOF
3426 At least one library type must be built.
3427 Specify --enable-static to build the static libraries or --enable-shared to
3428 build the shared libraries as well. To only build the shared libraries specify
3429 --disable-static in addition to --enable-shared.
3430 EOF
3431 exit 1;
3432 fi
3433
3434 die_license_disabled() {
3435 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3436 }
3437
3438 die_license_disabled gpl libcdio
3439 die_license_disabled gpl libx264
3440 die_license_disabled gpl libxavs
3441 die_license_disabled gpl libxvid
3442 die_license_disabled gpl x11grab
3443
3444 die_license_disabled nonfree libfaac
3445 die_license_disabled nonfree libfdk_aac
3446 die_license_disabled nonfree openssl
3447
3448 die_license_disabled version3 libopencore_amrnb
3449 die_license_disabled version3 libopencore_amrwb
3450 die_license_disabled version3 libvo_aacenc
3451 die_license_disabled version3 libvo_amrwbenc
3452
3453 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3454
3455 disabled optimizations || check_cflags -fomit-frame-pointer
3456
3457 enable_weak_pic() {
3458 disabled pic && return
3459 enable pic
3460 add_cppflags -DPIC
3461 case "$target_os" in
3462 mingw*|cygwin*)
3463 ;;
3464 *)
3465 add_cflags -fPIC
3466 ;;
3467 esac
3468 add_asflags -fPIC
3469 }
3470
3471 enabled pic && enable_weak_pic
3472
3473 check_cc <<EOF || die "Symbol mangling check failed."
3474 int ff_extern;
3475 EOF
3476 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3477 extern_prefix=${sym%%ff_extern*}
3478
3479 check_cc <<EOF && enable_weak inline_asm
3480 void foo(void) { __asm__ volatile ("" ::); }
3481 EOF
3482
3483 _restrict=
3484 for restrict_keyword in restrict __restrict__ __restrict; do
3485 check_cc <<EOF && _restrict=$restrict_keyword && break
3486 void foo(char * $restrict_keyword p);
3487 EOF
3488 done
3489
3490 check_cc <<EOF && enable pragma_deprecated
3491 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3492 EOF
3493
3494 check_cc <<EOF && enable attribute_packed
3495 struct { int x; } __attribute__((packed)) x;
3496 EOF
3497
3498 check_cc <<EOF && enable attribute_may_alias
3499 union { int x; } __attribute__((may_alias)) x;
3500 EOF
3501
3502 check_cc <<EOF || die "endian test failed"
3503 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3504 EOF
3505 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3506
3507 check_inline_asm inline_asm_labels '"1:\n"'
3508
3509 if enabled alpha; then
3510
3511 check_cflags -mieee
3512
3513 elif enabled arm; then
3514
3515 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3516 enabled thumb && check_cflags -mthumb || check_cflags -marm
3517 nogas=die
3518
3519 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3520 enable vfp_args
3521 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3522 case "${cross_prefix:-$cc}" in
3523 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3524 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3525 __asm__ (".eabi_attribute 28, 1");
3526 int main(void) { return 0; }
3527 EOF
3528 esac
3529 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3530 fi
3531
3532 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3533 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3534 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3535 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3536 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3537 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3538
3539 [ $target_os = linux ] ||
3540 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3541 $ARCH_EXT_LIST_ARM
3542
3543 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3544 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3545
3546 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3547
3548 elif enabled mips; then
3549
3550 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3551
3552 elif enabled parisc; then
3553
3554 if enabled gcc; then
3555 case $($cc -dumpversion) in
3556 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3557 esac
3558 fi
3559
3560 elif enabled ppc; then
3561
3562 enable local_aligned_8 local_aligned_16
3563
3564 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3565 check_inline_asm ibm_asm '"add 0, 0, 0"'
3566 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3567 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3568
3569 # AltiVec flags: The FSF version of GCC differs from the Apple version
3570 if enabled altivec; then
3571 nogas=warn
3572 check_cflags -maltivec -mabi=altivec &&
3573 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3574 check_cflags -faltivec
3575
3576 # check if our compiler supports Motorola AltiVec C API
3577 check_cc <<EOF || disable altivec
3578 $inc_altivec_h
3579 int main(void) {
3580 vector signed int v1 = (vector signed int) { 0 };
3581 vector signed int v2 = (vector signed int) { 1 };
3582 v1 = vec_add(v1, v2);
3583 return 0;
3584 }
3585 EOF
3586
3587 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3588 fi
3589
3590 elif enabled sparc; then
3591
3592 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3593
3594 elif enabled x86; then
3595
3596 check_builtin rdtsc intrin.h "__rdtsc()"
3597 check_builtin mm_empty mmintrin.h "_mm_empty()"
3598
3599 enable local_aligned_8 local_aligned_16
3600
3601 # check whether EBP is available on x86
3602 # As 'i' is stored on the stack, this program will crash
3603 # if the base pointer is used to access it because the
3604 # base pointer is cleared in the inline assembly code.
3605 check_exec_crash <<EOF && enable ebp_available
3606 volatile int i=0;
3607 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3608 return i;
3609 EOF
3610
3611 # check whether EBX is available on x86
3612 check_inline_asm ebx_available '""::"b"(0)' &&
3613 check_inline_asm ebx_available '"":::"%ebx"'
3614
3615 # check whether xmm clobbers are supported
3616 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3617
3618 # check whether binutils is new enough to compile SSSE3/MMXEXT
3619 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3620 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3621
3622 if ! disabled_any asm mmx yasm; then
3623 if check_cmd $yasmexe --version; then
3624 enabled x86_64 && yasm_extra="-m amd64"
3625 yasm_debug="-g dwarf2"
3626 elif check_cmd nasm -v; then
3627 yasmexe=nasm
3628 yasm_debug="-g -F dwarf"
3629 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3630 fi
3631
3632 YASMFLAGS="-f $objformat $yasm_extra"
3633 enabled pic && append YASMFLAGS "-DPIC"
3634 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3635 case "$objformat" in
3636 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3637 esac
3638
3639 check_yasm "movbe ecx, [5]" && enable yasm ||
3640 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3641 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3642 check_yasm "CPU amdnop" && enable cpunop
3643 fi
3644
3645 case "$cpu" in
3646 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3647 disable fast_clz
3648 ;;
3649 esac
3650
3651 fi
3652
3653 if enabled asm; then
3654 as=${gas:=$as}
3655 check_as <<EOF && enable gnu_as || \
3656 $nogas "GNU assembler not found, install gas-preprocessor"
3657 .macro m n
3658 \n: .int 0
3659 .endm
3660 m x
3661 EOF
3662 fi
3663
3664 check_ldflags -Wl,--as-needed
3665
3666 if check_func dlopen; then
3667 ldl=
3668 elif check_func dlopen -ldl; then
3669 ldl=-ldl
3670 fi
3671
3672 if ! disabled network; then
3673 check_type "sys/types.h sys/socket.h" socklen_t
3674 check_type netdb.h "struct addrinfo"
3675 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3676 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3677 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3678 check_type netinet/in.h "struct sockaddr_in6"
3679 check_type poll.h "struct pollfd"
3680 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3681 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3682 check_type netinet/sctp.h "struct sctp_event_subscribe"
3683 check_func getaddrinfo $network_extralibs
3684 check_func getservbyport $network_extralibs
3685 # Prefer arpa/inet.h over winsock2
3686 if check_header arpa/inet.h ; then
3687 check_func closesocket
3688 elif check_header winsock2.h ; then
3689 check_func_headers winsock2.h closesocket -lws2 &&
3690 network_extralibs="-lws2" ||
3691 { check_func_headers winsock2.h closesocket -lws2_32 &&
3692 network_extralibs="-lws2_32"; }
3693 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3694 check_type ws2tcpip.h socklen_t
3695 check_type ws2tcpip.h "struct addrinfo"
3696 check_type ws2tcpip.h "struct group_source_req"
3697 check_type ws2tcpip.h "struct ip_mreq_source"
3698 check_type ws2tcpip.h "struct ipv6_mreq"
3699 check_type winsock2.h "struct pollfd"