af_compand: replace strtok_r() with av_get_token()
[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-libwebp enable WebP encoding via libwebp [no]
206 --enable-libx264 enable H.264 encoding via x264 [no]
207 --enable-libx265 enable HEVC encoding via x265 [no]
208 --enable-libxavs enable AVS encoding via xavs [no]
209 --enable-libxvid enable Xvid encoding via xvidcore,
210 native MPEG-4/Xvid encoder exists [no]
211 --enable-openssl enable openssl [no]
212 --enable-x11grab enable X11 grabbing [no]
213 --enable-zlib enable zlib [autodetect]
214
215 Advanced options (experts only):
216 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
217 --enable-cross-compile assume a cross-compiler is used
218 --sysroot=PATH root of cross-build tree
219 --sysinclude=PATH location of cross-build system headers
220 --target-os=OS compiler targets OS [$target_os]
221 --target-exec=CMD command to run executables on target
222 --target-path=DIR path to view of build directory on target
223 --target-samples=DIR path to samples directory on target
224 --toolchain=NAME set tool defaults according to NAME
225 --nm=NM use nm tool
226 --ar=AR use archive tool AR [$ar_default]
227 --as=AS use assembler AS [$as_default]
228 --cc=CC use C compiler CC [$cc_default]
229 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
230 --ld=LD use linker LD
231 --host-cc=HOSTCC use host C compiler HOSTCC
232 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
233 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
234 --host-ld=HOSTLD use host linker HOSTLD
235 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
236 --host-libs=HLIBS use libs HLIBS when linking for host
237 --host-os=OS compiler host OS [$target_os]
238 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
239 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
240 --extra-libs=ELIBS add ELIBS [$ELIBS]
241 --extra-version=STRING version string suffix []
242 --optflags=OPTFLAGS override optimization-related compiler flags
243 --build-suffix=SUFFIX library name suffix []
244 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
245 --arch=ARCH select architecture [$arch]
246 --cpu=CPU select the minimum required CPU (affects
247 instruction selection, may crash on older CPUs)
248 --enable-pic build position-independent code
249 --enable-sram allow use of on-chip SRAM
250 --enable-thumb compile for Thumb instruction set
251 --disable-symver disable symbol versioning
252 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
253 --disable-safe-bitstream-reader
254 disable buffer boundary checking in bitreaders
255 (faster, but may crash)
256 --enable-memalign-hack emulate memalign, interferes with memory debuggers
257 --enable-lto use link-time optimization
258
259 Optimization options (experts only):
260 --disable-asm disable all assembler optimizations
261 --disable-altivec disable AltiVec optimizations
262 --disable-amd3dnow disable 3DNow! optimizations
263 --disable-amd3dnowext disable 3DNow! extended optimizations
264 --disable-mmx disable MMX optimizations
265 --disable-mmxext disable MMXEXT optimizations
266 --disable-sse disable SSE optimizations
267 --disable-sse2 disable SSE2 optimizations
268 --disable-sse3 disable SSE3 optimizations
269 --disable-ssse3 disable SSSE3 optimizations
270 --disable-sse4 disable SSE4 optimizations
271 --disable-sse42 disable SSE4.2 optimizations
272 --disable-avx disable AVX optimizations
273 --disable-xop disable XOP optimizations
274 --disable-fma3 disable FMA3 optimizations
275 --disable-fma4 disable FMA4 optimizations
276 --disable-avx2 disable AVX2 optimizations
277 --disable-armv5te disable armv5te optimizations
278 --disable-armv6 disable armv6 optimizations
279 --disable-armv6t2 disable armv6t2 optimizations
280 --disable-vfp disable VFP optimizations
281 --disable-neon disable NEON optimizations
282 --disable-vis disable VIS optimizations
283 --disable-inline-asm disable use of inline assembler
284 --disable-yasm disable use of yasm assembler
285
286 Developer options (useful when working on Libav itself):
287 --disable-debug disable debugging symbols
288 --enable-debug=LEVEL set the debug level [$debuglevel]
289 --disable-optimizations disable compiler optimizations
290 --enable-extra-warnings enable more compiler warnings
291 --samples=PATH location of test samples for FATE, if not set use
292 \$LIBAV_SAMPLES at make invocation time.
293 --enable-neon-clobber-test check NEON registers for clobbering (should be
294 used only for debugging purposes)
295 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
296 should be used only for debugging purposes)
297 --enable-random randomly enable/disable components
298 --disable-random
299 --enable-random=LIST randomly enable/disable specific components or
300 --disable-random=LIST component groups. LIST is a comma-separated list
301 of NAME[:PROB] entries where NAME is a component
302 (group) and PROB the probability associated with
303 NAME (default 0.5).
304 --random-seed=VALUE seed value for --enable/disable-random
305
306 NOTE: Object files are built at the place where configure is launched.
307 EOF
308 exit 0
309 }
310
311 quotes='""'
312
313 log(){
314 echo "$@" >> $logfile
315 }
316
317 log_file(){
318 log BEGIN $1
319 pr -n -t $1 >> $logfile
320 log END $1
321 }
322
323 echolog(){
324 log "$@"
325 echo "$@"
326 }
327
328 warn(){
329 log "WARNING: $*"
330 WARNINGS="${WARNINGS}WARNING: $*\n"
331 }
332
333 die(){
334 echolog "$@"
335 cat <<EOF
336
337 If you think configure made a mistake, make sure you are using the latest
338 version from Git. If the latest version fails, report the problem to the
339 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
340 EOF
341 if disabled logging; then
342 cat <<EOF
343 Rerun configure with logging enabled (do not use --disable-logging), and
344 include the log this produces with your report.
345 EOF
346 else
347 cat <<EOF
348 Include the log file "$logfile" produced by configure as this will help
349 solving the problem.
350 EOF
351 fi
352 exit 1
353 }
354
355 # Avoid locale weirdness, besides we really just want to translate ASCII.
356 toupper(){
357 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
358 }
359
360 tolower(){
361 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
362 }
363
364 c_escape(){
365 echo "$*" | sed 's/["\\]/\\\0/g'
366 }
367
368 sh_quote(){
369 v=$(echo "$1" | sed "s/'/'\\\\''/g")
370 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
371 echo "$v"
372 }
373
374 cleanws(){
375 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
376 }
377
378 filter(){
379 pat=$1
380 shift
381 for v; do
382 eval "case $v in $pat) echo $v ;; esac"
383 done
384 }
385
386 filter_out(){
387 pat=$1
388 shift
389 for v; do
390 eval "case $v in $pat) ;; *) echo $v ;; esac"
391 done
392 }
393
394 map(){
395 m=$1
396 shift
397 for v; do eval $m; done
398 }
399
400 add_suffix(){
401 suffix=$1
402 shift
403 for v; do echo ${v}${suffix}; done
404 }
405
406 set_all(){
407 value=$1
408 shift
409 for var in $*; do
410 eval $var=$value
411 done
412 }
413
414 set_weak(){
415 value=$1
416 shift
417 for var; do
418 eval : \${$var:=$value}
419 done
420 }
421
422 sanitize_var_name(){
423 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
424 }
425
426 set_safe(){
427 var=$1
428 shift
429 eval $(sanitize_var_name "$var")='$*'
430 }
431
432 get_safe(){
433 eval echo \$$(sanitize_var_name "$1")
434 }
435
436 pushvar(){
437 for pvar in $*; do
438 eval level=\${${pvar}_level:=0}
439 eval ${pvar}_${level}="\$$pvar"
440 eval ${pvar}_level=$(($level+1))
441 done
442 }
443
444 popvar(){
445 for pvar in $*; do
446 eval level=\${${pvar}_level:-0}
447 test $level = 0 && continue
448 eval level=$(($level-1))
449 eval $pvar="\${${pvar}_${level}}"
450 eval ${pvar}_level=$level
451 eval unset ${pvar}_${level}
452 done
453 }
454
455 enable(){
456 set_all yes $*
457 }
458
459 disable(){
460 set_all no $*
461 }
462
463 enable_weak(){
464 set_weak yes $*
465 }
466
467 disable_weak(){
468 set_weak no $*
469 }
470
471 enable_safe(){
472 for var; do
473 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474 done
475 }
476
477 disable_safe(){
478 for var; do
479 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
480 done
481 }
482
483 do_enable_deep(){
484 for var; do
485 enabled $var && continue
486 eval sel="\$${var}_select"
487 eval sgs="\$${var}_suggest"
488 pushvar var sgs
489 enable_deep $sel
490 popvar sgs
491 enable_deep_weak $sgs
492 popvar var
493 done
494 }
495
496 enable_deep(){
497 do_enable_deep $*
498 enable $*
499 }
500
501 enable_deep_weak(){
502 for var; do
503 disabled $var && continue
504 pushvar var
505 do_enable_deep $var
506 popvar var
507 enable_weak $var
508 done
509 }
510
511 enabled(){
512 test "${1#!}" = "$1" && op== || op=!=
513 eval test "x\$${1#!}" $op "xyes"
514 }
515
516 disabled(){
517 test "${1#!}" = "$1" && op== || op=!=
518 eval test "x\$${1#!}" $op "xno"
519 }
520
521 enabled_all(){
522 for opt; do
523 enabled $opt || return 1
524 done
525 }
526
527 disabled_all(){
528 for opt; do
529 disabled $opt || return 1
530 done
531 }
532
533 enabled_any(){
534 for opt; do
535 enabled $opt && return 0
536 done
537 }
538
539 disabled_any(){
540 for opt; do
541 disabled $opt && return 0
542 done
543 return 1
544 }
545
546 set_default(){
547 for opt; do
548 eval : \${$opt:=\$${opt}_default}
549 done
550 }
551
552 is_in(){
553 value=$1
554 shift
555 for var in $*; do
556 [ $var = $value ] && return 0
557 done
558 return 1
559 }
560
561 do_check_deps(){
562 for cfg; do
563 cfg="${cfg#!}"
564 enabled ${cfg}_checking && die "Circular dependency for $cfg."
565 disabled ${cfg}_checking && continue
566 enable ${cfg}_checking
567 append allopts $cfg
568
569 eval dep_all="\$${cfg}_deps"
570 eval dep_any="\$${cfg}_deps_any"
571 eval dep_sel="\$${cfg}_select"
572 eval dep_sgs="\$${cfg}_suggest"
573 eval dep_ifa="\$${cfg}_if"
574 eval dep_ifn="\$${cfg}_if_any"
575
576 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
578 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
579
580 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
581 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
582 enabled_all $dep_all || disable $cfg
583 enabled_any $dep_any || disable $cfg
584 disabled_any $dep_sel && disable $cfg
585
586 if enabled $cfg; then
587 enable_deep $dep_sel
588 enable_deep_weak $dep_sgs
589 fi
590
591 disable ${cfg}_checking
592 done
593 }
594
595 check_deps(){
596 unset allopts
597
598 do_check_deps "$@"
599
600 for cfg in $allopts; do
601 enabled $cfg || continue
602 eval dep_extralibs="\$${cfg}_extralibs"
603 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
604 done
605 }
606
607 print_config(){
608 pfx=$1
609 files=$2
610 shift 2
611 map 'eval echo "$v \${$v:-no}"' "$@" |
612 awk "BEGIN { split(\"$files\", files) }
613 {
614 c = \"$pfx\" toupper(\$1);
615 v = \$2;
616 sub(/yes/, 1, v);
617 sub(/no/, 0, v);
618 for (f in files) {
619 file = files[f];
620 if (file ~ /\\.h\$/) {
621 printf(\"#define %s %d\\n\", c, v) >>file;
622 } else if (file ~ /\\.asm\$/) {
623 printf(\"%%define %s %d\\n\", c, v) >>file;
624 } else if (file ~ /\\.mak\$/) {
625 n = -v ? \"\" : \"!\";
626 printf(\"%s%s=yes\\n\", n, c) >>file;
627 }
628 }
629 }"
630 }
631
632 print_enabled(){
633 suf=$1
634 shift
635 for v; do
636 enabled $v && printf "%s\n" ${v%$suf};
637 done
638 }
639
640 append(){
641 var=$1
642 shift
643 eval "$var=\"\$$var $*\""
644 }
645
646 prepend(){
647 var=$1
648 shift
649 eval "$var=\"$* \$$var\""
650 }
651
652 add_cppflags(){
653 append CPPFLAGS "$@"
654 }
655
656 add_cflags(){
657 append CFLAGS $($cflags_filter "$@")
658 }
659
660 add_asflags(){
661 append ASFLAGS $($asflags_filter "$@")
662 }
663
664 add_ldflags(){
665 append LDFLAGS $($ldflags_filter "$@")
666 }
667
668 add_stripflags(){
669 append STRIPFLAGS "$@"
670 }
671
672 add_extralibs(){
673 prepend extralibs $($ldflags_filter "$@")
674 }
675
676 add_host_cppflags(){
677 append host_cppflags "$@"
678 }
679
680 add_host_cflags(){
681 append host_cflags $($host_cflags_filter "$@")
682 }
683
684 add_host_ldflags(){
685 append host_ldflags $($host_ldflags_filter "$@")
686 }
687
688 add_compat(){
689 append compat_objs $1
690 shift
691 map 'add_cppflags -D$v' "$@"
692 }
693
694 check_cmd(){
695 log "$@"
696 "$@" >> $logfile 2>&1
697 }
698
699 cc_o(){
700 eval printf '%s\\n' $CC_O
701 }
702
703 cc_e(){
704 eval printf '%s\\n' $CC_E
705 }
706
707 check_cc(){
708 log check_cc "$@"
709 cat > $TMPC
710 log_file $TMPC
711 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
712 }
713
714 check_cpp(){
715 log check_cpp "$@"
716 cat > $TMPC
717 log_file $TMPC
718 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
719 }
720
721 as_o(){
722 eval printf '%s\\n' $AS_O
723 }
724
725 check_as(){
726 log check_as "$@"
727 cat > $TMPS
728 log_file $TMPS
729 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
730 }
731
732 check_inline_asm(){
733 log check_inline_asm "$@"
734 name="$1"
735 code="$2"
736 shift 2
737 disable $name
738 check_cc "$@" <<EOF && enable $name
739 void foo(void){ __asm__ volatile($code); }
740 EOF
741 }
742
743 check_insn(){
744 log check_insn "$@"
745 check_inline_asm ${1}_inline "\"$2\""
746 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
747 }
748
749 check_yasm(){
750 log check_yasm "$@"
751 echo "$1" > $TMPS
752 log_file $TMPS
753 shift 1
754 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
755 }
756
757 ld_o(){
758 eval printf '%s\\n' $LD_O
759 }
760
761 check_ld(){
762 log check_ld "$@"
763 flags=$(filter_out '-l*' "$@")
764 libs=$(filter '-l*' "$@")
765 check_cc $($cflags_filter $flags) || return
766 flags=$($ldflags_filter $flags)
767 libs=$($ldflags_filter $libs)
768 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
769 }
770
771 print_include(){
772 hdr=$1
773 test "${hdr%.h}" = "${hdr}" &&
774 echo "#include $hdr" ||
775 echo "#include <$hdr>"
776 }
777
778 check_code(){
779 log check_code "$@"
780 check=$1
781 headers=$2
782 code=$3
783 shift 3
784 {
785 for hdr in $headers; do
786 print_include $hdr
787 done
788 echo "int main(void) { $code; return 0; }"
789 } | check_$check "$@"
790 }
791
792 check_cppflags(){
793 log check_cppflags "$@"
794 check_cc "$@" <<EOF && append CPPFLAGS "$@"
795 int x;
796 EOF
797 }
798
799 test_cflags(){
800 log test_cflags "$@"
801 set -- $($cflags_filter "$@")
802 check_cc "$@" <<EOF
803 int x;
804 EOF
805 }
806
807 check_cflags(){
808 log check_cflags "$@"
809 test_cflags "$@" && add_cflags "$@"
810 }
811
812 test_ldflags(){
813 log test_ldflags "$@"
814 check_ld "$@" <<EOF
815 int main(void){ return 0; }
816 EOF
817 }
818
819 check_ldflags(){
820 log check_ldflags "$@"
821 test_ldflags "$@" && add_ldflags "$@"
822 }
823
824 test_stripflags(){
825 log test_stripflags "$@"
826 # call check_cc to get a fresh TMPO
827 check_cc <<EOF
828 int main(void) { return 0; }
829 EOF
830 check_cmd $strip $STRIPFLAGS "$@" $TMPO
831 }
832
833 check_stripflags(){
834 log check_stripflags "$@"
835 test_stripflags "$@" && add_stripflags "$@"
836 }
837
838 check_header(){
839 log check_header "$@"
840 header=$1
841 shift
842 disable_safe $header
843 check_cpp "$@" <<EOF && enable_safe $header
844 #include <$header>
845 int x;
846 EOF
847 }
848
849 check_func(){
850 log check_func "$@"
851 func=$1
852 shift
853 disable $func
854 check_ld "$@" <<EOF && enable $func
855 extern int $func();
856 int main(void){ $func(); }
857 EOF
858 }
859
860 check_mathfunc(){
861 log check_mathfunc "$@"
862 func=$1
863 narg=$2
864 shift 2
865 test $narg = 2 && args="f, g" || args="f"
866 disable $func
867 check_ld "$@" <<EOF && enable $func
868 #include <math.h>
869 float foo(float f, float g) { return $func($args); }
870 int main(void){ return 0; }
871 EOF
872 }
873
874 check_func_headers(){
875 log check_func_headers "$@"
876 headers=$1
877 funcs=$2
878 shift 2
879 {
880 for hdr in $headers; do
881 print_include $hdr
882 done
883 for func in $funcs; do
884 echo "long check_$func(void) { return (long) $func; }"
885 done
886 echo "int main(void) { return 0; }"
887 } | check_ld "$@" && enable $funcs && enable_safe $headers
888 }
889
890 check_cpp_condition(){
891 log check_cpp_condition "$@"
892 header=$1
893 condition=$2
894 shift 2
895 check_cpp "$@" <<EOF
896 #include <$header>
897 #if !($condition)
898 #error "unsatisfied condition: $condition"
899 #endif
900 EOF
901 }
902
903 check_lib(){
904 log check_lib "$@"
905 header="$1"
906 func="$2"
907 shift 2
908 check_header $header && check_func $func "$@" && add_extralibs "$@"
909 }
910
911 check_lib2(){
912 log check_lib2 "$@"
913 headers="$1"
914 funcs="$2"
915 shift 2
916 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 }
918
919 check_pkg_config(){
920 log check_pkg_config "$@"
921 pkg="$1"
922 headers="$2"
923 funcs="$3"
924 shift 3
925 check_cmd $pkg_config --exists --print-errors $pkg || return
926 pkg_cflags=$($pkg_config --cflags $pkg)
927 pkg_libs=$($pkg_config --libs $pkg)
928 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
929 set_safe ${pkg}_cflags $pkg_cflags &&
930 set_safe ${pkg}_libs $pkg_libs
931 }
932
933 check_exec(){
934 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
935 }
936
937 check_exec_crash(){
938 code=$(cat)
939
940 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
941 # are safe but may not be available everywhere. Thus we use
942 # raise(SIGTERM) instead. The check is run in a subshell so we
943 # can redirect the "Terminated" message from the shell. SIGBUS
944 # is not defined by standard C so it is used conditionally.
945
946 (check_exec "$@") >> $logfile 2>&1 <<EOF
947 #include <signal.h>
948 static void sighandler(int sig){
949 raise(SIGTERM);
950 }
951 int foo(void){
952 $code
953 }
954 int (*func_ptr)(void) = foo;
955 int main(void){
956 signal(SIGILL, sighandler);
957 signal(SIGFPE, sighandler);
958 signal(SIGSEGV, sighandler);
959 #ifdef SIGBUS
960 signal(SIGBUS, sighandler);
961 #endif
962 return func_ptr();
963 }
964 EOF
965 }
966
967 check_type(){
968 log check_type "$@"
969 headers=$1
970 type=$2
971 shift 2
972 disable_safe "$type"
973 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
974 }
975
976 check_struct(){
977 log check_struct "$@"
978 headers=$1
979 struct=$2
980 member=$3
981 shift 3
982 disable_safe "${struct}_${member}"
983 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
984 enable_safe "${struct}_${member}"
985 }
986
987 check_builtin(){
988 log check_builtin "$@"
989 name=$1
990 headers=$2
991 builtin=$3
992 shift 3
993 disable "$name"
994 check_code ld "$headers" "$builtin" "$@" && enable "$name"
995 }
996
997 require(){
998 name="$1"
999 header="$2"
1000 func="$3"
1001 shift 3
1002 check_lib $header $func "$@" || die "ERROR: $name not found"
1003 }
1004
1005 require2(){
1006 name="$1"
1007 headers="$2"
1008 func="$3"
1009 shift 3
1010 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1011 }
1012
1013 require_pkg_config(){
1014 pkg="$1"
1015 check_pkg_config "$@" || die "ERROR: $pkg not found"
1016 add_cflags $(get_safe ${pkg}_cflags)
1017 add_extralibs $(get_safe ${pkg}_libs)
1018 }
1019
1020 hostcc_e(){
1021 eval printf '%s\\n' $HOSTCC_E
1022 }
1023
1024 hostcc_o(){
1025 eval printf '%s\\n' $HOSTCC_O
1026 }
1027
1028 check_host_cc(){
1029 log check_host_cc "$@"
1030 cat > $TMPC
1031 log_file $TMPC
1032 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1033 }
1034
1035 check_host_cpp(){
1036 log check_host_cpp "$@"
1037 cat > $TMPC
1038 log_file $TMPC
1039 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1040 }
1041
1042 check_host_cppflags(){
1043 log check_host_cppflags "$@"
1044 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1045 int x;
1046 EOF
1047 }
1048
1049 check_host_cflags(){
1050 log check_host_cflags "$@"
1051 set -- $($host_cflags_filter "$@")
1052 check_host_cc "$@" <<EOF && append host_cflags "$@"
1053 int x;
1054 EOF
1055 }
1056
1057 check_host_cpp_condition(){
1058 log check_host_cpp_condition "$@"
1059 header=$1
1060 condition=$2
1061 shift 2
1062 check_host_cpp "$@" <<EOF
1063 #include <$header>
1064 #if !($condition)
1065 #error "unsatisfied condition: $condition"
1066 #endif
1067 EOF
1068 }
1069
1070 apply(){
1071 file=$1
1072 shift
1073 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1074 }
1075
1076 cp_if_changed(){
1077 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1078 mkdir -p "$(dirname $2)"
1079 $cp_f "$1" "$2"
1080 }
1081
1082 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1083 # system-dependent things.
1084
1085 COMPONENT_LIST="
1086 bsfs
1087 decoders
1088 demuxers
1089 encoders
1090 filters
1091 hwaccels
1092 indevs
1093 muxers
1094 outdevs
1095 parsers
1096 protocols
1097 "
1098
1099 EXAMPLE_LIST="
1100 avcodec_example
1101 filter_audio_example
1102 metadata_example
1103 output_example
1104 transcode_aac_example
1105 "
1106
1107 EXTERNAL_LIBRARY_LIST="
1108 avisynth
1109 bzlib
1110 frei0r
1111 gnutls
1112 libcdio
1113 libdc1394
1114 libfaac
1115 libfdk_aac
1116 libfreetype
1117 libgsm
1118 libilbc
1119 libmp3lame
1120 libopencore_amrnb
1121 libopencore_amrwb
1122 libopencv
1123 libopenjpeg
1124 libopus
1125 libpulse
1126 librtmp
1127 libschroedinger
1128 libspeex
1129 libtheora
1130 libvo_aacenc
1131 libvo_amrwbenc
1132 libvorbis
1133 libvpx
1134 libwavpack
1135 libwebp
1136 libx264
1137 libx265
1138 libxavs
1139 libxvid
1140 openssl
1141 x11grab
1142 zlib
1143 "
1144
1145 HWACCEL_LIST="
1146 dxva2
1147 vaapi
1148 vda
1149 vdpau
1150 "
1151 LIBRARY_LIST="
1152 avcodec
1153 avdevice
1154 avfilter
1155 avformat
1156 avresample
1157 avutil
1158 swscale
1159 "
1160
1161 PROGRAM_LIST="
1162 avconv
1163 avplay
1164 avprobe
1165 avserver
1166 "
1167
1168 CONFIG_LIST="
1169 $COMPONENT_LIST
1170 $EXAMPLE_LIST
1171 $EXTERNAL_LIBRARY_LIST
1172 $HWACCEL_LIST
1173 $LIBRARY_LIST
1174 $PROGRAM_LIST
1175 dct
1176 doc
1177 error_resilience
1178 fft
1179 gpl
1180 gray
1181 hardcoded_tables
1182 lsp
1183 lzo
1184 mdct
1185 memalign_hack
1186 neon_clobber_test
1187 network
1188 nonfree
1189 pod2man
1190 pic
1191 rdft
1192 runtime_cpudetect
1193 safe_bitstream_reader
1194 shared
1195 small
1196 sram
1197 static
1198 swscale_alpha
1199 texi2html
1200 thumb
1201 version3
1202 xmm_clobber_test
1203 "
1204
1205 THREADS_LIST='
1206 pthreads
1207 w32threads
1208 '
1209
1210 ATOMICS_LIST='
1211 atomics_gcc
1212 atomics_suncc
1213 atomics_win32
1214 '
1215
1216 ARCH_LIST='
1217 aarch64
1218 alpha
1219 arm
1220 avr32
1221 avr32_ap
1222 avr32_uc
1223 bfin
1224 ia64
1225 m68k
1226 mips
1227 mips64
1228 parisc
1229 ppc
1230 ppc64
1231 s390
1232 sh4
1233 sparc
1234 sparc64
1235 tilegx
1236 tilepro
1237 tomi
1238 x86
1239 x86_32
1240 x86_64
1241 '
1242
1243 ARCH_EXT_LIST_ARM='
1244 armv5te
1245 armv6
1246 armv6t2
1247 neon
1248 vfp
1249 vfpv3
1250 '
1251
1252 ARCH_EXT_LIST_X86='
1253 amd3dnow
1254 amd3dnowext
1255 avx
1256 avx2
1257 cpunop
1258 xop
1259 fma3
1260 fma4
1261 i686
1262 mmx
1263 mmxext
1264 sse
1265 sse2
1266 sse3
1267 sse4
1268 sse42
1269 ssse3
1270 '
1271
1272 ARCH_EXT_LIST="
1273 $ARCH_EXT_LIST_ARM
1274 $ARCH_EXT_LIST_X86
1275 altivec
1276 ppc4xx
1277 vis
1278 "
1279
1280 HAVE_LIST_CMDLINE='
1281 inline_asm
1282 symver
1283 yasm
1284 '
1285
1286 HAVE_LIST_PUB='
1287 bigendian
1288 fast_unaligned
1289 '
1290
1291 MATH_FUNCS="
1292 atanf
1293 atan2f
1294 cbrtf
1295 cosf
1296 exp2
1297 exp2f
1298 expf
1299 isinf
1300 isnan
1301 ldexpf
1302 llrint
1303 llrintf
1304 log2
1305 log2f
1306 log10f
1307 lrint
1308 lrintf
1309 powf
1310 rint
1311 round
1312 roundf
1313 sinf
1314 trunc
1315 truncf
1316 "
1317
1318 HAVE_LIST="
1319 $ARCH_EXT_LIST
1320 $(add_suffix _external $ARCH_EXT_LIST)
1321 $(add_suffix _inline $ARCH_EXT_LIST)
1322 $HAVE_LIST_CMDLINE
1323 $HAVE_LIST_PUB
1324 $THREADS_LIST
1325 $ATOMICS_LIST
1326 $MATH_FUNCS
1327 aligned_malloc
1328 aligned_stack
1329 alsa_asoundlib_h
1330 altivec_h
1331 arpa_inet_h
1332 asm_mod_q
1333 atomic_cas_ptr
1334 atomics_native
1335 attribute_may_alias
1336 attribute_packed
1337 cdio_paranoia_h
1338 cdio_paranoia_paranoia_h
1339 closesocket
1340 CommandLineToArgvW
1341 CryptGenRandom
1342 dcbzl
1343 dev_bktr_ioctl_bt848_h
1344 dev_bktr_ioctl_meteor_h
1345 dev_ic_bt8xx_h
1346 dev_video_bktr_ioctl_bt848_h
1347 dev_video_meteor_ioctl_meteor_h
1348 direct_h
1349 dlfcn_h
1350 dlopen
1351 dos_paths
1352 dxva_h
1353 ebp_available
1354 ebx_available
1355 fast_64bit
1356 fast_clz
1357 fast_cmov
1358 fcntl
1359 fork
1360 getaddrinfo
1361 gethrtime
1362 getopt
1363 GetProcessAffinityMask
1364 GetProcessMemoryInfo
1365 GetProcessTimes
1366 GetSystemTimeAsFileTime
1367 getrusage
1368 getservbyport
1369 gettimeofday
1370 gnu_as
1371 gsm_h
1372 ibm_asm
1373 inet_aton
1374 io_h
1375 inline_asm_labels
1376 isatty
1377 jack_port_get_latency_range
1378 ldbrx
1379 libc_msvcrt
1380 libdc1394_1
1381 libdc1394_2
1382 local_aligned_16
1383 local_aligned_8
1384 localtime_r
1385 loongson
1386 machine_ioctl_bt848_h
1387 machine_ioctl_meteor_h
1388 machine_rw_barrier
1389 malloc_h
1390 MapViewOfFile
1391 memalign
1392 MemoryBarrier
1393 mkstemp
1394 mm_empty
1395 mmap
1396 mprotect
1397 nanosleep
1398 poll_h
1399 posix_memalign
1400 pragma_deprecated
1401 rdtsc
1402 sched_getaffinity
1403 sdl
1404 SetConsoleTextAttribute
1405 setmode
1406 setrlimit
1407 Sleep
1408 sndio_h
1409 socklen_t
1410 soundcard_h
1411 strerror_r
1412 strptime
1413 strtok_r
1414 struct_addrinfo
1415 struct_group_source_req
1416 struct_ip_mreq_source
1417 struct_ipv6_mreq
1418 struct_pollfd
1419 struct_rusage_ru_maxrss
1420 struct_sockaddr_in6
1421 struct_sockaddr_sa_len
1422 struct_sockaddr_storage
1423 struct_v4l2_frmivalenum_discrete
1424 symver_asm_label
1425 symver_gnu_asm
1426 sync_val_compare_and_swap
1427 sysconf
1428 sysctl
1429 sys_mman_h
1430 sys_param_h
1431 sys_resource_h
1432 sys_select_h
1433 sys_soundcard_h
1434 sys_time_h
1435 sys_un_h
1436 sys_videoio_h
1437 threads
1438 unistd_h
1439 usleep
1440 vdpau_x11
1441 vfp_args
1442 VirtualAlloc
1443 windows_h
1444 winsock2_h
1445 xform_asm
1446 xlib
1447 xmm_clobbers
1448 "
1449
1450 # options emitted with CONFIG_ prefix but not available on the command line
1451 CONFIG_EXTRA="
1452 aandcttables
1453 ac3dsp
1454 audio_frame_queue
1455 dsputil
1456 gcrypt
1457 golomb
1458 gplv3
1459 h263dsp
1460 h264chroma
1461 h264dsp
1462 h264pred
1463 h264qpel
1464 hpeldsp
1465 huffman
1466 intrax8
1467 lgplv3
1468 lpc
1469 mpegaudio
1470 mpegaudiodsp
1471 mpegvideo
1472 mpegvideoenc
1473 nettle
1474 rangecoder
1475 riffdec
1476 riffenc
1477 rtpdec
1478 rtpenc_chain
1479 sinewin
1480 videodsp
1481 vp3dsp
1482 "
1483
1484 CMDLINE_SELECT="
1485 $ARCH_EXT_LIST
1486 $CONFIG_LIST
1487 $HAVE_LIST_CMDLINE
1488 $THREADS_LIST
1489 asm
1490 cross_compile
1491 debug
1492 extra_warnings
1493 logging
1494 lto
1495 optimizations
1496 "
1497
1498 PATHS_LIST='
1499 bindir
1500 datadir
1501 docdir
1502 incdir
1503 libdir
1504 mandir
1505 prefix
1506 shlibdir
1507 '
1508
1509 CMDLINE_SET="
1510 $PATHS_LIST
1511 ar
1512 arch
1513 as
1514 build_suffix
1515 cc
1516 cpu
1517 cross_prefix
1518 dep_cc
1519 extra_version
1520 host_cc
1521 host_cflags
1522 host_ld
1523 host_ldflags
1524 host_libs
1525 host_os
1526 ld
1527 logfile
1528 malloc_prefix
1529 nm
1530 optflags
1531 pkg_config
1532 random_seed
1533 samples
1534 sysinclude
1535 sysroot
1536 target_exec
1537 target_os
1538 target_path
1539 target_samples
1540 toolchain
1541 "
1542
1543 CMDLINE_APPEND="
1544 extra_cflags
1545 host_cppflags
1546 "
1547
1548 # code dependency declarations
1549
1550 # architecture extensions
1551
1552 armv5te_deps="arm"
1553 armv6_deps="arm"
1554 armv6t2_deps="arm"
1555 neon_deps_any="aarch64 arm"
1556 vfp_deps_any="aarch64 arm"
1557 vfpv3_deps="vfp"
1558
1559 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1560
1561 altivec_deps="ppc"
1562 ppc4xx_deps="ppc"
1563
1564 vis_deps="sparc"
1565
1566 cpunop_deps="i686"
1567 x86_64_select="i686"
1568 x86_64_suggest="fast_cmov"
1569
1570 amd3dnow_deps="mmx"
1571 amd3dnowext_deps="amd3dnow"
1572 i686_deps="x86"
1573 mmx_deps="x86"
1574 mmxext_deps="mmx"
1575 sse_deps="mmxext"
1576 sse2_deps="sse"
1577 sse3_deps="sse2"
1578 ssse3_deps="sse3"
1579 sse4_deps="ssse3"
1580 sse42_deps="sse4"
1581 avx_deps="sse42"
1582 xop_deps="avx"
1583 fma3_deps="avx"
1584 fma4_deps="avx"
1585 avx2_deps="avx"
1586
1587 mmx_external_deps="yasm"
1588 mmx_inline_deps="inline_asm"
1589 mmx_suggest="mmx_external mmx_inline"
1590
1591 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1592 eval dep=\$${ext}_deps
1593 eval ${ext}_external_deps='"${dep}_external"'
1594 eval ${ext}_inline_deps='"${dep}_inline"'
1595 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1596 done
1597
1598 aligned_stack_if_any="aarch64 ppc x86"
1599 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1600 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1601 fast_unaligned_if_any="aarch64 ppc x86"
1602
1603 need_memalign="altivec neon sse"
1604
1605 # system capabilities
1606 log2_deps="!libc_msvcrt"
1607
1608 symver_if_any="symver_asm_label symver_gnu_asm"
1609
1610 # threading support
1611 atomics_gcc_if="sync_val_compare_and_swap"
1612 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1613 atomics_win32_if="MemoryBarrier"
1614 atomics_native_if_any="$ATOMICS_LIST"
1615 w32threads_deps="atomics_native"
1616 threads_if_any="$THREADS_LIST"
1617
1618 # subsystems
1619 dct_select="rdft"
1620 error_resilience_select="dsputil"
1621 lpc_select="dsputil"
1622 mdct_select="fft"
1623 rdft_select="fft"
1624 mpegaudio_select="mpegaudiodsp"
1625 mpegaudiodsp_select="dct"
1626 mpegvideo_select="dsputil hpeldsp videodsp"
1627 mpegvideoenc_select="mpegvideo"
1628
1629 # decoders / encoders
1630 aac_decoder_select="mdct sinewin"
1631 aac_encoder_select="audio_frame_queue mdct sinewin"
1632 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1633 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1634 ac3_encoder_select="mdct ac3dsp dsputil"
1635 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1636 aic_decoder_select="dsputil golomb"
1637 alac_encoder_select="lpc"
1638 als_decoder_select="dsputil"
1639 amrnb_decoder_select="lsp"
1640 amrwb_decoder_select="lsp"
1641 amv_decoder_select="sp5x_decoder"
1642 ape_decoder_select="dsputil"
1643 asv1_decoder_select="dsputil"
1644 asv1_encoder_select="dsputil"
1645 asv2_decoder_select="dsputil"
1646 asv2_encoder_select="dsputil"
1647 atrac1_decoder_select="mdct sinewin"
1648 atrac3_decoder_select="mdct"
1649 atrac3p_decoder_select="mdct sinewin"
1650 bink_decoder_select="dsputil hpeldsp"
1651 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1652 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1653 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1654 cllc_decoder_select="dsputil"
1655 comfortnoise_encoder_select="lpc"
1656 cook_decoder_select="dsputil mdct sinewin"
1657 cscd_decoder_select="lzo"
1658 cscd_decoder_suggest="zlib"
1659 dca_decoder_select="mdct"
1660 dnxhd_decoder_select="dsputil"
1661 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1662 dvvideo_decoder_select="dsputil"
1663 dvvideo_encoder_select="dsputil"
1664 dxa_decoder_deps="zlib"
1665 eac3_decoder_select="ac3_decoder"
1666 eac3_encoder_select="ac3_encoder"
1667 eamad_decoder_select="aandcttables dsputil mpegvideo"
1668 eatgq_decoder_select="aandcttables dsputil"
1669 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1670 ffv1_decoder_select="dsputil golomb rangecoder"
1671 ffv1_encoder_select="dsputil rangecoder"
1672 ffvhuff_decoder_select="huffyuv_decoder"
1673 ffvhuff_encoder_select="huffyuv_encoder"
1674 fic_decoder_select="dsputil golomb"
1675 flac_decoder_select="golomb"
1676 flac_encoder_select="dsputil golomb lpc"
1677 flashsv_decoder_deps="zlib"
1678 flashsv_encoder_deps="zlib"
1679 flashsv2_decoder_deps="zlib"
1680 flv_decoder_select="h263_decoder"
1681 flv_encoder_select="h263_encoder"
1682 fourxm_decoder_select="dsputil"
1683 fraps_decoder_select="dsputil huffman"
1684 g2m_decoder_deps="zlib"
1685 g2m_decoder_select="dsputil"
1686 h261_decoder_select="error_resilience mpegvideo"
1687 h261_encoder_select="aandcttables mpegvideoenc"
1688 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1689 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1690 h263i_decoder_select="h263_decoder"
1691 h263p_encoder_select="h263_encoder"
1692 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1693 h264_decoder_suggest="error_resilience"
1694 hevc_decoder_select="dsputil golomb videodsp"
1695 huffyuv_decoder_select="dsputil"
1696 huffyuv_encoder_select="dsputil huffman"
1697 iac_decoder_select="imc_decoder"
1698 imc_decoder_select="dsputil fft mdct sinewin"
1699 indeo3_decoder_select="hpeldsp"
1700 interplay_video_decoder_select="hpeldsp"
1701 jpegls_decoder_select="golomb mjpeg_decoder"
1702 jpegls_encoder_select="golomb"
1703 jv_decoder_select="dsputil"
1704 lagarith_decoder_select="dsputil"
1705 ljpeg_encoder_select="aandcttables mpegvideoenc"
1706 loco_decoder_select="golomb"
1707 mdec_decoder_select="dsputil error_resilience mpegvideo"
1708 metasound_decoder_select="lsp mdct sinewin"
1709 mimic_decoder_select="dsputil hpeldsp"
1710 mjpeg_decoder_select="dsputil hpeldsp"
1711 mjpegb_decoder_select="mjpeg_decoder"
1712 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1713 mlp_decoder_select="dsputil mlp_parser"
1714 motionpixels_decoder_select="dsputil"
1715 mp1_decoder_select="mpegaudio"
1716 mp1float_decoder_select="mpegaudio"
1717 mp2_decoder_select="mpegaudio"
1718 mp2float_decoder_select="mpegaudio"
1719 mp3_decoder_select="mpegaudio"
1720 mp3adu_decoder_select="mpegaudio"
1721 mp3adufloat_decoder_select="mpegaudio"
1722 mp3float_decoder_select="mpegaudio"
1723 mp3on4_decoder_select="mpegaudio"
1724 mp3on4float_decoder_select="mpegaudio"
1725 mpc7_decoder_select="dsputil mpegaudiodsp"
1726 mpc8_decoder_select="dsputil mpegaudiodsp"
1727 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1728 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1729 mpeg1video_decoder_select="error_resilience mpegvideo"
1730 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1731 mpeg2video_decoder_select="error_resilience mpegvideo"
1732 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1733 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1734 mpeg4_encoder_select="h263_encoder"
1735 msmpeg4v1_decoder_select="h263_decoder"
1736 msmpeg4v2_decoder_select="h263_decoder"
1737 msmpeg4v2_encoder_select="h263_encoder"
1738 msmpeg4v3_decoder_select="h263_decoder"
1739 msmpeg4v3_encoder_select="h263_encoder"
1740 mss2_decoder_select="error_resilience vc1_decoder"
1741 mxpeg_decoder_select="mjpeg_decoder"
1742 nellymoser_decoder_select="mdct sinewin"
1743 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1744 nuv_decoder_select="dsputil lzo"
1745 png_decoder_deps="zlib"
1746 png_decoder_select="dsputil"
1747 png_encoder_deps="zlib"
1748 png_encoder_select="dsputil"
1749 prores_decoder_select="dsputil"
1750 prores_encoder_select="dsputil"
1751 qcelp_decoder_select="lsp"
1752 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1753 ra_144_encoder_select="audio_frame_queue lpc"
1754 ralf_decoder_select="golomb"
1755 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1756 rv10_encoder_select="h263_encoder"
1757 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1758 rv20_encoder_select="h263_encoder"
1759 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1760 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1761 shorten_decoder_select="golomb"
1762 sipr_decoder_select="lsp"
1763 sp5x_decoder_select="mjpeg_decoder"
1764 svq1_decoder_select="hpeldsp"
1765 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1766 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1767 svq3_decoder_suggest="error_resilience zlib"
1768 tak_decoder_select="dsputil"
1769 theora_decoder_select="vp3_decoder"
1770 tiff_decoder_suggest="zlib"
1771 tiff_encoder_suggest="zlib"
1772 thp_decoder_select="mjpeg_decoder"
1773 truehd_decoder_select="mlp_decoder"
1774 truemotion2_decoder_select="dsputil"
1775 truespeech_decoder_select="dsputil"
1776 tscc_decoder_deps="zlib"
1777 twinvq_decoder_select="mdct lsp sinewin"
1778 utvideo_decoder_select="dsputil"
1779 utvideo_encoder_select="dsputil huffman"
1780 vble_decoder_select="dsputil"
1781 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1782 vc1image_decoder_select="vc1_decoder"
1783 vorbis_decoder_select="mdct"
1784 vorbis_encoder_select="mdct"
1785 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1786 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1787 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1788 vp6a_decoder_select="vp6_decoder"
1789 vp6f_decoder_select="vp6_decoder"
1790 vp8_decoder_select="h264pred videodsp"
1791 vp9_decoder_select="videodsp"
1792 webp_decoder_select="vp8_decoder"
1793 wmapro_decoder_select="mdct sinewin"
1794 wmav1_decoder_select="mdct sinewin"
1795 wmav1_encoder_select="mdct sinewin"
1796 wmav2_decoder_select="mdct sinewin"
1797 wmav2_encoder_select="mdct sinewin"
1798 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1799 wmv1_decoder_select="h263_decoder"
1800 wmv1_encoder_select="h263_encoder"
1801 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1802 wmv2_encoder_select="h263_encoder"
1803 wmv3_decoder_select="vc1_decoder"
1804 wmv3image_decoder_select="wmv3_decoder"
1805 zerocodec_decoder_deps="zlib"
1806 zlib_decoder_deps="zlib"
1807 zlib_encoder_deps="zlib"
1808 zmbv_decoder_deps="zlib"
1809 zmbv_encoder_deps="zlib"
1810
1811 # hardware accelerators
1812 dxva2_deps="dxva2api_h"
1813 vaapi_deps="va_va_h"
1814 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1815 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1816 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1817
1818 h263_vaapi_hwaccel_deps="vaapi"
1819 h263_vaapi_hwaccel_select="h263_decoder"
1820 h263_vdpau_hwaccel_deps="vdpau"
1821 h263_vdpau_hwaccel_select="h263_decoder"
1822 h264_dxva2_hwaccel_deps="dxva2"
1823 h264_dxva2_hwaccel_select="h264_decoder"
1824 h264_vaapi_hwaccel_deps="vaapi"
1825 h264_vaapi_hwaccel_select="h264_decoder"
1826 h264_vda_hwaccel_deps="vda"
1827 h264_vda_hwaccel_select="h264_decoder"
1828 h264_vdpau_hwaccel_deps="vdpau"
1829 h264_vdpau_hwaccel_select="h264_decoder"
1830 mpeg1_vdpau_hwaccel_deps="vdpau"
1831 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1832 mpeg2_dxva2_hwaccel_deps="dxva2"
1833 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1834 mpeg2_vaapi_hwaccel_deps="vaapi"
1835 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1836 mpeg2_vdpau_hwaccel_deps="vdpau"
1837 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1838 mpeg4_vaapi_hwaccel_deps="vaapi"
1839 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1840 mpeg4_vdpau_hwaccel_deps="vdpau"
1841 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1842 vc1_dxva2_hwaccel_deps="dxva2"
1843 vc1_dxva2_hwaccel_select="vc1_decoder"
1844 vc1_vaapi_hwaccel_deps="vaapi"
1845 vc1_vaapi_hwaccel_select="vc1_decoder"
1846 vc1_vdpau_hwaccel_deps="vdpau"
1847 vc1_vdpau_hwaccel_select="vc1_decoder"
1848 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1849 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1850 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1851
1852 # parsers
1853 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1854 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1855 mpegvideo_parser_select="error_resilience mpegvideo"
1856 vc1_parser_select="mpegvideo"
1857
1858 # external libraries
1859 libfaac_encoder_deps="libfaac"
1860 libfaac_encoder_select="audio_frame_queue"
1861 libfdk_aac_decoder_deps="libfdk_aac"
1862 libfdk_aac_encoder_deps="libfdk_aac"
1863 libfdk_aac_encoder_select="audio_frame_queue"
1864 libgsm_decoder_deps="libgsm"
1865 libgsm_encoder_deps="libgsm"
1866 libgsm_ms_decoder_deps="libgsm"
1867 libgsm_ms_encoder_deps="libgsm"
1868 libilbc_decoder_deps="libilbc"
1869 libilbc_encoder_deps="libilbc"
1870 libmp3lame_encoder_deps="libmp3lame"
1871 libmp3lame_encoder_select="audio_frame_queue"
1872 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1873 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1874 libopencore_amrnb_encoder_select="audio_frame_queue"
1875 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1876 libopenjpeg_decoder_deps="libopenjpeg"
1877 libopenjpeg_encoder_deps="libopenjpeg"
1878 libopus_decoder_deps="libopus"
1879 libopus_encoder_deps="libopus"
1880 libopus_encoder_select="audio_frame_queue"
1881 libschroedinger_decoder_deps="libschroedinger"
1882 libschroedinger_encoder_deps="libschroedinger"
1883 libspeex_decoder_deps="libspeex"
1884 libspeex_encoder_deps="libspeex"
1885 libspeex_encoder_select="audio_frame_queue"
1886 libtheora_encoder_deps="libtheora"
1887 libvo_aacenc_encoder_deps="libvo_aacenc"
1888 libvo_aacenc_encoder_select="audio_frame_queue"
1889 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1890 libvorbis_encoder_deps="libvorbis"
1891 libvorbis_encoder_select="audio_frame_queue"
1892 libvpx_vp8_decoder_deps="libvpx"
1893 libvpx_vp8_encoder_deps="libvpx"
1894 libvpx_vp9_decoder_deps="libvpx"
1895 libvpx_vp9_encoder_deps="libvpx"
1896 libwavpack_encoder_deps="libwavpack"
1897 libwebp_encoder_deps="libwebp"
1898 libx264_encoder_deps="libx264"
1899 libx265_encoder_deps="libx265"
1900 libxavs_encoder_deps="libxavs"
1901 libxvid_encoder_deps="libxvid"
1902
1903 # demuxers / muxers
1904 ac3_demuxer_select="ac3_parser"
1905 asf_demuxer_select="riffdec"
1906 asf_muxer_select="riffenc"
1907 asf_stream_muxer_select="asf_muxer"
1908 avi_demuxer_select="riffdec"
1909 avi_muxer_select="riffenc"
1910 avisynth_demuxer_deps="avisynth"
1911 avisynth_demuxer_select="riffdec"
1912 caf_demuxer_select="riffdec"
1913 dirac_demuxer_select="dirac_parser"
1914 dxa_demuxer_select="riffdec"
1915 eac3_demuxer_select="ac3_parser"
1916 f4v_muxer_select="mov_muxer"
1917 flac_demuxer_select="flac_parser"
1918 hds_muxer_select="flv_muxer"
1919 hls_muxer_select="mpegts_muxer"
1920 ipod_muxer_select="mov_muxer"
1921 ismv_muxer_select="mov_muxer"
1922 matroska_audio_muxer_select="matroska_muxer"
1923 matroska_demuxer_select="riffdec"
1924 matroska_demuxer_suggest="bzlib lzo zlib"
1925 matroska_muxer_select="riffenc"
1926 mmf_muxer_select="riffenc"
1927 mov_demuxer_select="riffdec"
1928 mov_demuxer_suggest="zlib"
1929 mov_muxer_select="riffenc rtpenc_chain"
1930 mp3_demuxer_select="mpegaudio_parser"
1931 mp4_muxer_select="mov_muxer"
1932 mpegts_muxer_select="adts_muxer latm_muxer"
1933 mpegtsraw_demuxer_select="mpegts_demuxer"
1934 mxf_d10_muxer_select="mxf_muxer"
1935 nut_muxer_select="riffenc"
1936 nuv_demuxer_select="riffdec"
1937 ogg_demuxer_select="golomb"
1938 psp_muxer_select="mov_muxer"
1939 rtp_demuxer_select="sdp_demuxer"
1940 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1941 rtsp_demuxer_select="http_protocol rtpdec"
1942 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1943 sap_demuxer_select="sdp_demuxer"
1944 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1945 sdp_demuxer_select="rtpdec"
1946 smoothstreaming_muxer_select="ismv_muxer"
1947 spdif_muxer_select="aac_parser"
1948 tak_demuxer_select="tak_parser"
1949 tg2_muxer_select="mov_muxer"
1950 tgp_muxer_select="mov_muxer"
1951 w64_demuxer_select="wav_demuxer"
1952 wav_demuxer_select="riffdec"
1953 wav_muxer_select="riffenc"
1954 webm_muxer_select="riffenc"
1955 wtv_demuxer_select="riffdec"
1956 xmv_demuxer_select="riffdec"
1957 xwma_demuxer_select="riffdec"
1958
1959 # indevs / outdevs
1960 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1961 alsa_outdev_deps="alsa_asoundlib_h"
1962 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1963 dv1394_indev_deps="dv1394"
1964 dv1394_indev_select="dv_demuxer"
1965 fbdev_indev_deps="linux_fb_h"
1966 jack_indev_deps="jack_jack_h pthreads"
1967 libcdio_indev_deps="libcdio"
1968 libdc1394_indev_deps="libdc1394"
1969 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1970 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1971 pulse_indev_deps="libpulse"
1972 sndio_indev_deps="sndio_h"
1973 sndio_outdev_deps="sndio_h"
1974 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1975 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1976 vfwcap_indev_extralibs="-lavicap32"
1977 x11grab_indev_deps="x11grab XShmCreateImage"
1978
1979 # protocols
1980 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1981 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1982 ffrtmpcrypt_protocol_select="tcp_protocol"
1983 ffrtmphttp_protocol_deps="!librtmp_protocol"
1984 ffrtmphttp_protocol_select="http_protocol"
1985 gopher_protocol_select="network"
1986 httpproxy_protocol_select="tcp_protocol"
1987 http_protocol_select="tcp_protocol"
1988 https_protocol_select="tls_protocol"
1989 librtmp_protocol_deps="librtmp"
1990 librtmpe_protocol_deps="librtmp"
1991 librtmps_protocol_deps="librtmp"
1992 librtmpt_protocol_deps="librtmp"
1993 librtmpte_protocol_deps="librtmp"
1994 mmsh_protocol_select="http_protocol"
1995 mmst_protocol_select="network"
1996 rtmp_protocol_deps="!librtmp_protocol"
1997 rtmp_protocol_select="tcp_protocol"
1998 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1999 rtmps_protocol_deps="!librtmp_protocol"
2000 rtmps_protocol_select="tls_protocol"
2001 rtmpt_protocol_select="ffrtmphttp_protocol"
2002 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2003 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2004 rtp_protocol_select="udp_protocol"
2005 sctp_protocol_deps="struct_sctp_event_subscribe"
2006 sctp_protocol_select="network"
2007 srtp_protocol_select="rtp_protocol"
2008 tcp_protocol_select="network"
2009 tls_protocol_deps_any="openssl gnutls"
2010 tls_protocol_select="tcp_protocol"
2011 udp_protocol_select="network"
2012 unix_protocol_deps="sys_un_h"
2013 unix_protocol_select="network"
2014
2015 # filters
2016 blackframe_filter_deps="gpl"
2017 boxblur_filter_deps="gpl"
2018 cropdetect_filter_deps="gpl"
2019 delogo_filter_deps="gpl"
2020 drawtext_filter_deps="libfreetype"
2021 frei0r_filter_deps="frei0r dlopen strtok_r"
2022 frei0r_filter_extralibs='$ldl'
2023 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2024 frei0r_src_filter_extralibs='$ldl'
2025 hqdn3d_filter_deps="gpl"
2026 interlace_filter_deps="gpl"
2027 resample_filter_deps="avresample"
2028 ocv_filter_deps="libopencv"
2029 scale_filter_deps="swscale"
2030
2031 # examples
2032 avcodec_example_deps="avcodec avutil"
2033 filter_audio_example_deps="avfilter avutil"
2034 metadata_example_deps="avformat avutil"
2035 output_example_deps="avcodec avformat avutil swscale"
2036 transcode_aac_example_deps="avcodec avformat avresample"
2037
2038 # libraries
2039 avcodec_deps="avutil"
2040 avdevice_deps="avutil avcodec avformat"
2041 avfilter_deps="avutil"
2042 avformat_deps="avutil avcodec"
2043 avresample_deps="avutil"
2044 swscale_deps="avutil"
2045
2046 # programs
2047 avconv_deps="avcodec avfilter avformat avresample swscale"
2048 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2049 fps_filter null_filter resample_filter scale_filter
2050 setpts_filter trim_filter"
2051 avplay_deps="avcodec avformat avresample swscale sdl"
2052 avplay_libs='$sdl_libs'
2053 avplay_select="rdft"
2054 avprobe_deps="avcodec avformat"
2055 avserver_deps="avformat fork !shared"
2056 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2057
2058 # documentation
2059 pod2man_deps="doc"
2060 texi2html_deps="doc"
2061
2062 # default parameters
2063
2064 logfile="config.log"
2065
2066 # installation paths
2067 prefix_default="/usr/local"
2068 bindir_default='${prefix}/bin'
2069 datadir_default='${prefix}/share/avconv'
2070 docdir_default='${prefix}/share/doc/libav'
2071 incdir_default='${prefix}/include'
2072 libdir_default='${prefix}/lib'
2073 mandir_default='${prefix}/share/man'
2074 shlibdir_default="$libdir_default"
2075
2076 # toolchain
2077 ar_default="ar"
2078 cc_default="gcc"
2079 host_cc_default="gcc"
2080 cp_f="cp -f"
2081 ln_s="ln -s -f"
2082 nm_default="nm -g"
2083 objformat="elf"
2084 pkg_config_default=pkg-config
2085 ranlib="ranlib"
2086 strip="strip"
2087 yasmexe="yasm"
2088
2089 nogas=":"
2090
2091 # machine
2092 arch_default=$(uname -m)
2093 cpu="generic"
2094
2095 # OS
2096 target_os_default=$(tolower $(uname -s))
2097 host_os=$target_os_default
2098
2099 # configurable options
2100 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2101
2102 enable asm
2103 enable debug
2104 enable doc
2105 enable optimizations
2106 enable safe_bitstream_reader
2107 enable static
2108 enable swscale_alpha
2109
2110 # By default, enable only those hwaccels that have no external dependencies.
2111 enable dxva2 vdpau
2112
2113 # build settings
2114 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2115 LIBPREF="lib"
2116 LIBSUF=".a"
2117 FULLNAME='$(NAME)$(BUILDSUF)'
2118 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2119 SLIBPREF="lib"
2120 SLIBSUF=".so"
2121 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2122 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2123 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2124 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2125 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2126 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2127
2128 asflags_filter=echo
2129 cflags_filter=echo
2130 ldflags_filter=echo
2131
2132 AS_C='-c'
2133 AS_O='-o $@'
2134 CC_C='-c'
2135 CC_E='-E -o $@'
2136 CC_O='-o $@'
2137 LD_O='-o $@'
2138 LD_LIB='-l%'
2139 LD_PATH='-L'
2140 HOSTCC_C='-c'
2141 HOSTCC_E='-E -o $@'
2142 HOSTCC_O='-o $@'
2143 HOSTLD_O='-o $@'
2144
2145 host_libs='-lm'
2146 host_cflags_filter=echo
2147 host_ldflags_filter=echo
2148
2149 target_path='$(CURDIR)'
2150
2151 # since the object filename is not given with the -MM flag, the compiler
2152 # is only able to print the basename, and we must add the path ourselves
2153 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2154 DEPFLAGS='-MM'
2155
2156 # find source path
2157 if test -f configure; then
2158 source_path=.
2159 else
2160 source_path=$(cd $(dirname "$0"); pwd)
2161 echo "$source_path" | grep -q '[[:blank:]]' &&
2162 die "Out of tree builds are impossible with whitespace in source path."
2163 test -e "$source_path/config.h" &&
2164 die "Out of tree builds are impossible with config.h in source dir."
2165 fi
2166
2167 for v in "$@"; do
2168 r=${v#*=}
2169 l=${v%"$r"}
2170 r=$(sh_quote "$r")
2171 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2172 done
2173
2174 find_things(){
2175 thing=$1
2176 pattern=$2
2177 file=$source_path/$3
2178 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2179 }
2180
2181 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2182 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2183 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2184 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2185 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2186 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2187 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2188 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2189 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2190 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2191 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2192
2193 ALL_COMPONENTS="
2194 $BSF_LIST
2195 $DECODER_LIST
2196 $DEMUXER_LIST
2197 $ENCODER_LIST
2198 $FILTER_LIST
2199 $HWACCEL_LIST
2200 $INDEV_LIST
2201 $MUXER_LIST
2202 $OUTDEV_LIST
2203 $PARSER_LIST
2204 $PROTOCOL_LIST
2205 "
2206
2207 for n in $COMPONENT_LIST; do
2208 v=$(toupper ${n%s})_LIST
2209 eval enable \$$v
2210 eval ${n}_if_any="\$$v"
2211 done
2212
2213 enable $ARCH_EXT_LIST
2214
2215 die_unknown(){
2216 echo "Unknown option \"$1\"."
2217 echo "See $0 --help for available options."
2218 exit 1
2219 }
2220
2221 print_3_columns() {
2222 cat | tr ' ' '\n' | sort | pr -r -3 -t
2223 }
2224
2225 show_list() {
2226 suffix=_$1
2227 shift
2228 echo $* | sed s/$suffix//g | print_3_columns
2229 exit 0
2230 }
2231
2232 rand_list(){
2233 IFS=', '
2234 set -- $*
2235 unset IFS
2236 for thing; do
2237 comp=${thing%:*}
2238 prob=${thing#$comp}
2239 prob=${prob#:}
2240 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2241 echo "prob ${prob:-0.5}"
2242 printf '%s\n' $comp
2243 done
2244 }
2245
2246 do_random(){
2247 action=$1
2248 shift
2249 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2250 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2251 }
2252
2253 for opt do
2254 optval="${opt#*=}"
2255 case "$opt" in
2256 --extra-ldflags=*)
2257 add_ldflags $optval
2258 ;;
2259 --extra-libs=*)
2260 add_extralibs $optval
2261 ;;
2262 --disable-devices)
2263 disable $INDEV_LIST $OUTDEV_LIST
2264 ;;
2265 --enable-debug=*)
2266 debuglevel="$optval"
2267 ;;
2268 --disable-programs)
2269 disable $PROGRAM_LIST
2270 ;;
2271 --disable-everything)
2272 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2273 ;;
2274 --disable-all)
2275 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2276 disable $LIBRARY_LIST $PROGRAM_LIST doc
2277 ;;
2278 --enable-random|--disable-random)
2279 action=${opt%%-random}
2280 do_random ${action#--} $COMPONENT_LIST
2281 ;;
2282 --enable-random=*|--disable-random=*)
2283 action=${opt%%-random=*}
2284 do_random ${action#--} $optval
2285 ;;
2286 --enable-*=*|--disable-*=*)
2287 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2288 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2289 eval list=\$$(toupper $thing)_LIST
2290 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2291 $action $(filter "$name" $list)
2292 ;;
2293 --enable-?*|--disable-?*)
2294 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2295 if is_in $option $COMPONENT_LIST; then
2296 test $action = disable && action=unset
2297 eval $action \$$(toupper ${option%s})_LIST
2298 elif is_in $option $CMDLINE_SELECT; then
2299 $action $option
2300 else
2301 die_unknown $opt
2302 fi
2303 ;;
2304 --list-*)
2305 NAME="${opt#--list-}"
2306 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2307 NAME=${NAME%s}
2308 eval show_list $NAME \$$(toupper $NAME)_LIST
2309 ;;
2310 --help|-h) show_help
2311 ;;
2312 *)
2313 optname="${opt%%=*}"
2314 optname="${optname#--}"
2315 optname=$(echo "$optname" | sed 's/-/_/g')
2316 if is_in $optname $CMDLINE_SET; then
2317 eval $optname='$optval'
2318 elif is_in $optname $CMDLINE_APPEND; then
2319 append $optname "$optval"
2320 else
2321 die_unknown $opt
2322 fi
2323 ;;
2324 esac
2325 done
2326
2327 disabled logging && logfile=/dev/null
2328
2329 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2330 set >> $logfile
2331
2332 test -n "$cross_prefix" && enable cross_compile
2333
2334 if enabled cross_compile; then
2335 test -n "$arch" && test -n "$target_os" ||
2336 die "Must specify target arch and OS when cross-compiling"
2337 fi
2338
2339 ar_default="${cross_prefix}${ar_default}"
2340 cc_default="${cross_prefix}${cc_default}"
2341 nm_default="${cross_prefix}${nm_default}"
2342 pkg_config_default="${cross_prefix}${pkg_config_default}"
2343 ranlib="${cross_prefix}${ranlib}"
2344 strip="${cross_prefix}${strip}"
2345
2346 sysinclude_default="${sysroot}/usr/include"
2347
2348 case "$toolchain" in
2349 clang-asan)
2350 cc_default="clang"
2351 add_cflags -fsanitize=address
2352 add_ldflags -fsanitize=address
2353 ;;
2354 clang-tsan)
2355 cc_default="clang"
2356 add_cflags -fsanitize=thread -pie
2357 add_ldflags -fsanitize=thread -pie
2358 ;;
2359 clang-usan)
2360 cc_default="clang"
2361 add_cflags -fsanitize=undefined
2362 add_ldflags -fsanitize=undefined
2363 ;;
2364 gcc-asan)
2365 cc_default="gcc"
2366 add_cflags -fsanitize=address
2367 add_ldflags -fsanitize=address
2368 ;;
2369 gcc-tsan)
2370 cc_default="gcc"
2371 add_cflags -fsanitize=thread -pie -fPIC
2372 add_ldflags -fsanitize=thread -pie -fPIC
2373 ;;
2374 gcc-usan)
2375 cc_default="gcc"
2376 add_cflags -fsanitize=undefined
2377 add_ldflags -fsanitize=undefined
2378 ;;
2379 valgrind-massif)
2380 target_exec_default="valgrind"
2381 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2382 ;;
2383 valgrind-memcheck)
2384 target_exec_default="valgrind"
2385 target_exec_args="--track-origins=yes --leak-check=full"
2386 ;;
2387 msvc)
2388 # Check whether the current MSVC version needs the C99 converter.
2389 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2390 # support enough of C99 to build libav. Default to the new
2391 # behaviour if the regexp was unable to match anything, since this
2392 # successfully parses the version number of existing supported
2393 # versions that require the converter (MSVC 2010 and 2012).
2394 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2395 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2396 cc_default="cl"
2397 else
2398 cc_default="c99wrap cl"
2399 fi
2400 ld_default="link"
2401 nm_default="dumpbin -symbols"
2402 ar_default="lib"
2403 target_os_default="win32"
2404 # Use a relative path for TMPDIR. This makes sure all the
2405 # ffconf temp files are written with a relative path, avoiding
2406 # issues with msys/win32 path conversion for MSVC parameters
2407 # such as -Fo<file> or -out:<file>.
2408 TMPDIR=.
2409 ;;
2410 icl)
2411 cc_default="icl"
2412 ld_default="xilink"
2413 nm_default="dumpbin -symbols"
2414 ar_default="xilib"
2415 target_os_default="win32"
2416 TMPDIR=.
2417 ;;
2418 gcov)
2419 add_cflags -fprofile-arcs -ftest-coverage
2420 add_ldflags -fprofile-arcs -ftest-coverage
2421 ;;
2422 hardened)
2423 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2424 add_ldflags -Wl,-z,relro -Wl,-z,now
2425 ;;
2426 ?*)
2427 die "Unknown toolchain $toolchain"
2428 ;;
2429 esac
2430
2431 set_default arch cc pkg_config sysinclude target_exec target_os
2432 enabled cross_compile || host_cc_default=$cc
2433 set_default host_cc
2434
2435 if ! $pkg_config --version >/dev/null 2>&1; then
2436 warn "$pkg_config not found, library detection may fail."
2437 pkg_config=false
2438 fi
2439
2440 exesuf() {
2441 case $1 in
2442 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2443 esac
2444 }
2445
2446 EXESUF=$(exesuf $target_os)
2447 HOSTEXESUF=$(exesuf $host_os)
2448
2449 # set temporary file name
2450 : ${TMPDIR:=$TEMPDIR}
2451 : ${TMPDIR:=$TMP}
2452 : ${TMPDIR:=/tmp}
2453
2454 if ! check_cmd mktemp -u XXXXXX; then
2455 # simple replacement for missing mktemp
2456 # NOT SAFE FOR GENERAL USE
2457 mktemp(){
2458 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2459 }
2460 fi
2461
2462 tmpfile(){
2463 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2464 (set -C; exec > $tmp) 2>/dev/null ||
2465 die "Unable to create temporary file in $TMPDIR."
2466 append TMPFILES $tmp
2467 eval $1=$tmp
2468 }
2469
2470 trap 'rm -f -- $TMPFILES' EXIT
2471
2472 tmpfile TMPASM .asm
2473 tmpfile TMPC .c
2474 tmpfile TMPE $EXESUF
2475 tmpfile TMPH .h
2476 tmpfile TMPO .o
2477 tmpfile TMPS .S
2478 tmpfile TMPSH .sh
2479 tmpfile TMPV .ver
2480
2481 unset -f mktemp
2482
2483 chmod +x $TMPE
2484
2485 # make sure we can execute files in $TMPDIR
2486 cat > $TMPSH 2>> $logfile <<EOF
2487 #! /bin/sh
2488 EOF
2489 chmod +x $TMPSH >> $logfile 2>&1
2490 if ! $TMPSH >> $logfile 2>&1; then
2491 cat <<EOF
2492 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2493 variable to another directory and make sure that it is not mounted noexec.
2494 EOF
2495 die "Sanity test failed."
2496 fi
2497
2498 ccc_flags(){
2499 for flag; do
2500 case $flag in
2501 -std=c99) echo -c99 ;;
2502 -mcpu=*) echo -arch ${flag#*=} ;;
2503 -mieee) echo -ieee ;;
2504 -O*|-fast) echo $flag ;;
2505 -fno-math-errno) echo -assume nomath_errno ;;
2506 -g) echo -g3 ;;
2507 -Wall) echo -msg_enable level2 ;;
2508 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2509 -Wl,*) echo $flag ;;
2510 -f*|-W*) ;;
2511 *) echo $flag ;;
2512 esac
2513 done
2514 }
2515
2516 cparser_flags(){
2517 for flag; do
2518 case $flag in
2519 -Wno-switch) echo -Wno-switch-enum ;;
2520 -Wno-format-zero-length) ;;
2521 -Wdisabled-optimization) ;;
2522 -Wno-pointer-sign) echo -Wno-other ;;
2523 *) echo $flag ;;
2524 esac
2525 done
2526 }
2527
2528 msvc_common_flags(){
2529 for flag; do
2530 case $flag in
2531 # In addition to specifying certain flags under the compiler
2532 # specific filters, they must be specified here as well or else the
2533 # generic catch all at the bottom will print the original flag.
2534 -Wall) ;;
2535 -std=c99) ;;
2536 # Common flags
2537 -fomit-frame-pointer) ;;
2538 -g) echo -Z7 ;;
2539 -fno-math-errno) ;;
2540 -fno-common) ;;
2541 -fno-signed-zeros) ;;
2542 -fPIC) ;;
2543 -mthumb) ;;
2544 -march=*) ;;
2545 -lz) echo zlib.lib ;;
2546 -lavifil32) echo vfw32.lib ;;
2547 -lavicap32) echo vfw32.lib user32.lib ;;
2548 -l*) echo ${flag#-l}.lib ;;
2549 *) echo $flag ;;
2550 esac
2551 done
2552 }
2553
2554 msvc_flags(){
2555 msvc_common_flags "$@"
2556 for flag; do
2557 case $flag in
2558 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2559 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2560 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2561 -wd4273 ;;
2562 esac
2563 done
2564 }
2565
2566 icl_flags(){
2567 msvc_common_flags "$@"
2568 for flag; do
2569 case $flag in
2570 # Despite what Intel's documentation says -Wall, which is supported
2571 # on Windows, does enable remarks so disable them here.
2572 -Wall) echo $flag -Qdiag-disable:remark ;;
2573 -std=c99) echo -Qstd=c99 ;;
2574 esac
2575 done
2576 }
2577
2578 pgi_flags(){
2579 for flag; do
2580 case $flag in
2581 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2582 -fomit-frame-pointer) echo -Mnoframe ;;
2583 -g) echo -gopt ;;
2584 *) echo $flag ;;
2585 esac
2586 done
2587 }
2588
2589 suncc_flags(){
2590 for flag; do
2591 case $flag in
2592 -march=*|-mcpu=*)
2593 case "${flag#*=}" in
2594 native) echo -xtarget=native ;;
2595 v9|niagara) echo -xarch=sparc ;;
2596 ultrasparc) echo -xarch=sparcvis ;;
2597 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2598 i586|pentium) echo -xchip=pentium ;;
2599 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2600 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2601 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2602 pentium4*) echo -xtarget=pentium4 ;;
2603 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2604 *-sse3) echo -xarch=sse3 ;;
2605 core2) echo -xarch=ssse3 -xchip=core2 ;;
2606 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2607 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2608 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2609 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2610 k8|opteron|athlon64|athlon-fx)
2611 echo -xarch=sse2a ;;
2612 athlon*) echo -xarch=pentium_proa ;;
2613 esac
2614 ;;
2615 -std=c99) echo -xc99 ;;
2616 -fomit-frame-pointer) echo -xregs=frameptr ;;
2617 -fPIC) echo -KPIC -xcode=pic32 ;;
2618 -W*,*) echo $flag ;;
2619 -f*-*|-W*|-mimpure-text) ;;
2620 -shared) echo -G ;;
2621 *) echo $flag ;;
2622 esac
2623 done
2624 }
2625
2626 tms470_flags(){
2627 for flag; do
2628 case $flag in
2629 -march=*|-mcpu=*)
2630 case "${flag#*=}" in
2631 armv7-a|cortex-a*) echo -mv=7a8 ;;
2632 armv7-r|cortex-r*) echo -mv=7r4 ;;
2633 armv7-m|cortex-m*) echo -mv=7m3 ;;
2634 armv6*|arm11*) echo -mv=6 ;;
2635 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2636 echo -mv=5e ;;
2637 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2638 esac
2639 ;;
2640 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2641 -mfpu=vfp) echo --float_support=vfpv2 ;;
2642 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2643 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2644 -msoft-float) echo --float_support=vfplib ;;
2645 -O[0-3]|-mf=*) echo $flag ;;
2646 -g) echo -g -mn ;;
2647 -pds=*) echo $flag ;;
2648 -D*|-I*) echo $flag ;;
2649 --gcc|--abi=*) echo $flag ;;
2650 -me) echo $flag ;;
2651 esac
2652 done
2653 }
2654
2655 probe_cc(){
2656 pfx=$1
2657 _cc=$2
2658
2659 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2660 unset _ld_o _ldflags _ld_lib _ld_path
2661 unset _depflags _DEPCMD _DEPFLAGS
2662 _flags_filter=echo
2663
2664 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2665 _type=llvm_gcc
2666 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2667 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2668 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2669 _cflags_speed='-O3'
2670 _cflags_size='-Os'
2671 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2672 _type=gcc
2673 gcc_version=$($_cc --version | head -n1)
2674 gcc_basever=$($_cc -dumpversion)
2675 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2676 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2677 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2678 if ! $_cc -dumpversion | grep -q '^2\.'; then
2679 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2680 fi
2681 _cflags_speed='-O3'
2682 _cflags_size='-Os'
2683 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2684 _type=icc
2685 _ident=$($_cc --version | head -n1)
2686 _depflags='-MMD'
2687 _cflags_speed='-O3'
2688 _cflags_size='-Os'
2689 _cflags_noopt='-O1'
2690 elif $_cc -v 2>&1 | grep -q xlc; then
2691 _type=xlc
2692 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2693 _cflags_speed='-O5'
2694 _cflags_size='-O5 -qcompact'
2695 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2696 _type=ccc
2697 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2698 _DEPFLAGS='-M'
2699 _cflags_speed='-fast'
2700 _cflags_size='-O1'
2701 _flags_filter=ccc_flags
2702 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2703 test -d "$sysroot" || die "No valid sysroot specified."
2704 _type=armcc
2705 _ident=$($_cc --vsn | head -n1)
2706 armcc_conf="$PWD/armcc.conf"
2707 $_cc --arm_linux_configure \
2708 --arm_linux_config_file="$armcc_conf" \
2709 --configure_sysroot="$sysroot" \
2710 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2711 die "Error creating armcc configuration file."
2712 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2713 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2714 as_default="${cross_prefix}gcc"
2715 _depflags='-MMD'
2716 _cflags_speed='-O3'
2717 _cflags_size='-Os'
2718 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2719 _type=tms470
2720 _ident=$($_cc -version | head -n1 | tr -s ' ')
2721 _flags='--gcc --abi=eabi -me'
2722 _cc_e='-ppl -fe=$@'
2723 _cc_o='-fe=$@'
2724 _depflags='-ppa -ppd=$(@:.o=.d)'
2725 _cflags_speed='-O3 -mf=5'
2726 _cflags_size='-O3 -mf=2'
2727 _flags_filter=tms470_flags
2728 elif $_cc -v 2>&1 | grep -q clang; then
2729 _type=clang
2730 _ident=$($_cc --version | head -n1)
2731 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2732 _cflags_speed='-O3'
2733 _cflags_size='-Os'
2734 elif $_cc -V 2>&1 | grep -q Sun; then
2735 _type=suncc
2736 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2737 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2738 _DEPFLAGS='-xM1 -xc99'
2739 _ldflags='-std=c99'
2740 _cflags_speed='-O5'
2741 _cflags_size='-O5 -xspace'
2742 _flags_filter=suncc_flags
2743 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2744 _type=pathscale
2745 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2746 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2747 _cflags_speed='-O2'
2748 _cflags_size='-Os'
2749 _flags_filter='filter_out -Wdisabled-optimization'
2750 elif $_cc -v 2>&1 | grep -q Open64; then
2751 _type=open64
2752 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2753 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2754 _cflags_speed='-O2'
2755 _cflags_size='-Os'
2756 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2757 elif $_cc -V 2>&1 | grep -q Portland; then
2758 _type=pgi
2759 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2760 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2761 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2762 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2763 _cflags_noopt="-O1"
2764 _flags_filter=pgi_flags
2765 elif $_cc 2>&1 | grep -q Microsoft; then
2766 _type=msvc
2767 _ident=$($cc 2>&1 | head -n1)
2768 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2769 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2770 _cflags_speed="-O2"
2771 _cflags_size="-O1"
2772 if $_cc 2>&1 | grep -q Linker; then
2773 _ld_o='-out:$@'
2774 else
2775 _ld_o='-Fe$@'
2776 fi
2777 _cc_o='-Fo$@'
2778 _cc_e='-P -Fi$@'
2779 _flags_filter=msvc_flags
2780 _ld_lib='lib%.a'
2781 _ld_path='-libpath:'
2782 _flags='-nologo'
2783 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2784 if [ $pfx = hostcc ]; then
2785 append _cflags -Dsnprintf=_snprintf
2786 fi
2787 elif $_cc 2>&1 | grep -q Intel; then
2788 _type=icl
2789 _ident=$($cc 2>&1 | head -n1)
2790 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2791 # Not only is O3 broken on 13.x+ but it is slower on all previous
2792 # versions (tested) as well.
2793 _cflags_speed="-O2"
2794 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2795 if $_cc 2>&1 | grep -q Linker; then
2796 _ld_o='-out:$@'
2797 else
2798 _ld_o='-Fe$@'
2799 fi
2800 _cc_o='-Fo$@'
2801 _cc_e='-P'
2802 _flags_filter=icl_flags
2803 _ld_lib='lib%.a'
2804 _ld_path='-libpath:'
2805 # -Qdiag-error to make icl error when seeing certain unknown arguments
2806 _flags='-nologo -Qdiag-error:4044,10157'
2807 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2808 # with MSVC which enables it by default.
2809 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2810 if [ $pfx = hostcc ]; then
2811 append _cflags -Dsnprintf=_snprintf
2812 fi
2813 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2814 _type=cparser
2815 _ident=$($_cc --version | head -n1)
2816 _depflags='-MMD'
2817 _cflags_speed='-O4'
2818 _cflags_size='-O2'
2819 _flags_filter=cparser_flags
2820 fi
2821
2822 eval ${pfx}_type=\$_type
2823 eval ${pfx}_ident=\$_ident
2824 }
2825
2826 set_ccvars(){
2827 eval ${1}_C=\${_cc_c-\${${1}_C}}
2828 eval ${1}_E=\${_cc_e-\${${1}_E}}
2829 eval ${1}_O=\${_cc_o-\${${1}_O}}
2830
2831 if [ -n "$_depflags" ]; then
2832 eval ${1}_DEPFLAGS=\$_depflags
2833 else
2834 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2835 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2836 eval DEP${1}FLAGS=\$_flags
2837 fi
2838 }
2839
2840 probe_cc cc "$cc"
2841 cflags_filter=$_flags_filter
2842 cflags_speed=$_cflags_speed
2843 cflags_size=$_cflags_size
2844 cflags_noopt=$_cflags_noopt
2845 add_cflags $_flags $_cflags
2846 cc_ldflags=$_ldflags
2847 set_ccvars CC
2848
2849 probe_cc hostcc "$host_cc"
2850 host_cflags_filter=$_flags_filter
2851 add_host_cflags $_flags $_cflags
2852 set_ccvars HOSTCC
2853
2854 test -n "$cc_type" && enable $cc_type ||
2855 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2856
2857 : ${as_default:=$cc}
2858 : ${dep_cc_default:=$cc}
2859 : ${ld_default:=$cc}
2860 : ${host_ld_default:=$host_cc}
2861 set_default ar as dep_cc ld host_ld
2862
2863 probe_cc as "$as"
2864 asflags_filter=$_flags_filter
2865 add_asflags $_flags $_cflags
2866 set_ccvars AS
2867
2868 probe_cc ld "$ld"
2869 ldflags_filter=$_flags_filter
2870 add_ldflags $_flags $_ldflags
2871 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2872 LD_O=${_ld_o-$LD_O}
2873 LD_LIB=${_ld_lib-$LD_LIB}
2874 LD_PATH=${_ld_path-$LD_PATH}
2875
2876 probe_cc hostld "$host_ld"
2877 host_ldflags_filter=$_flags_filter
2878 add_host_ldflags $_flags $_ldflags
2879 HOSTLD_O=${_ld_o-$HOSTLD_O}
2880
2881 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2882 probe_cc depcc "$dep_cc"
2883 CCDEP=${_DEPCMD:-$DEPCMD}
2884 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2885 DEPCCFLAGS=$_flags
2886 fi
2887
2888 if $ar 2>&1 | grep -q Microsoft; then
2889 arflags="-nologo"
2890 ar_o='-out:$@'
2891 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2892 arflags="rq"
2893 ar_o='$@'
2894 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2895 arflags='-Xany -r -c'
2896 ar_o='$@'
2897 else
2898 arflags="rc"
2899 ar_o='$@'
2900 fi
2901
2902 add_cflags $extra_cflags
2903 add_asflags $extra_cflags
2904
2905 if test -n "$sysroot"; then
2906 case "$cc_type" in
2907 gcc|llvm_gcc|clang)
2908 add_cppflags --sysroot="$sysroot"
2909 add_ldflags --sysroot="$sysroot"
2910 ;;
2911 tms470)
2912 add_cppflags -I"$sysinclude"
2913 add_ldflags --sysroot="$sysroot"
2914 ;;
2915 esac
2916 fi
2917
2918 if test "$cpu" = host; then
2919 enabled cross_compile &&
2920 die "--cpu=host makes no sense when cross-compiling."
2921
2922 case "$cc_type" in
2923 gcc|llvm_gcc)
2924 check_native(){
2925 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2926 sed -n "/cc1.*$1=/{
2927 s/.*$1=\\([^ ]*\\).*/\\1/
2928 p
2929 q
2930 }" $TMPE
2931 }
2932 cpu=$(check_native -march || check_native -mcpu)
2933 ;;
2934 esac
2935
2936 test "${cpu:-host}" = host &&
2937 die "--cpu=host not supported with compiler $cc"
2938 fi
2939
2940 # Deal with common $arch aliases
2941 case "$arch" in
2942 aarch64|arm64)
2943 arch="aarch64"
2944 ;;
2945 arm*)
2946 arch="arm"
2947 ;;
2948 mips*|IP*)
2949 arch="mips"
2950 ;;
2951 parisc*|hppa*)
2952 arch="parisc"
2953 ;;
2954 "Power Macintosh"|ppc*|powerpc*)
2955 arch="ppc"
2956 ;;
2957 s390|s390x)
2958 arch="s390"
2959 ;;
2960 sh4|sh)
2961 arch="sh4"
2962 ;;
2963 sun4u|sparc*)
2964 arch="sparc"
2965 ;;
2966 tilegx|tile-gx)
2967 arch="tilegx"
2968 ;;
2969 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2970 arch="x86"
2971 ;;
2972 esac
2973
2974 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2975 enable $arch
2976
2977 # Add processor-specific flags
2978 if enabled aarch64; then
2979
2980 case $cpu in
2981 armv*)
2982 cpuflags="-march=$cpu"
2983 ;;
2984 *)
2985 cpuflags="-mcpu=$cpu"
2986 ;;
2987 esac
2988
2989 elif enabled alpha; then
2990
2991 cpuflags="-mcpu=$cpu"
2992
2993 elif enabled arm; then
2994
2995 check_arm_arch() {
2996 check_cpp_condition stddef.h \
2997 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2998 $cpuflags
2999 }
3000
3001 probe_arm_arch() {
3002 if check_arm_arch 4; then echo armv4;
3003 elif check_arm_arch 4T; then echo armv4t;
3004 elif check_arm_arch 5; then echo armv5;
3005 elif check_arm_arch 5E; then echo armv5e;
3006 elif check_arm_arch 5T; then echo armv5t;
3007 elif check_arm_arch 5TE; then echo armv5te;
3008 elif check_arm_arch 5TEJ; then echo armv5te;
3009 elif check_arm_arch 6; then echo armv6;
3010 elif check_arm_arch 6J; then echo armv6j;
3011 elif check_arm_arch 6K; then echo armv6k;
3012 elif check_arm_arch 6Z; then echo armv6z;
3013 elif check_arm_arch 6ZK; then echo armv6zk;
3014 elif check_arm_arch 6T2; then echo armv6t2;
3015 elif check_arm_arch 7; then echo armv7;
3016 elif check_arm_arch 7A 7_A; then echo armv7-a;
3017 elif check_arm_arch 7R 7_R; then echo armv7-r;
3018 elif check_arm_arch 7M 7_M; then echo armv7-m;
3019 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3020 elif check_arm_arch 8A 8_A; then echo armv8-a;
3021 fi
3022 }
3023
3024 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3025
3026 case $cpu in
3027 armv*)
3028 cpuflags="-march=$cpu"
3029 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3030 ;;
3031 *)
3032 cpuflags="-mcpu=$cpu"
3033 case $cpu in
3034 cortex-a*) subarch=armv7a ;;
3035 cortex-r*) subarch=armv7r ;;
3036 cortex-m*) enable thumb; subarch=armv7m ;;
3037 arm11*) subarch=armv6 ;;
3038 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3039 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3040 *) subarch=$(probe_arm_arch) ;;
3041 esac
3042 ;;
3043 esac
3044
3045 case "$subarch" in
3046 armv5t*) enable fast_clz ;;
3047 armv[6-8]*) enable fast_clz fast_unaligned ;;
3048 esac
3049
3050 elif enabled avr32; then
3051
3052 case $cpu in
3053 ap7[02]0[0-2])
3054 subarch="avr32_ap"
3055 cpuflags="-mpart=$cpu"
3056 ;;
3057 ap)
3058 subarch="avr32_ap"
3059 cpuflags="-march=$cpu"
3060 ;;
3061 uc3[ab]*)
3062 subarch="avr32_uc"
3063 cpuflags="-mcpu=$cpu"
3064 ;;
3065 uc)
3066 subarch="avr32_uc"
3067 cpuflags="-march=$cpu"
3068 ;;
3069 esac
3070
3071 elif enabled bfin; then
3072
3073 cpuflags="-mcpu=$cpu"
3074
3075 elif enabled mips; then
3076
3077 cpuflags="-march=$cpu"
3078
3079 elif enabled ppc; then
3080
3081 case $(tolower $cpu) in
3082 601|ppc601|powerpc601)
3083 cpuflags="-mcpu=601"
3084 disable altivec
3085 ;;
3086 603*|ppc603*|powerpc603*)
3087 cpuflags="-mcpu=603"
3088 disable altivec
3089 ;;
3090 604*|ppc604*|powerpc604*)
3091 cpuflags="-mcpu=604"
3092 disable altivec
3093 ;;
3094 g3|75*|ppc75*|powerpc75*)
3095 cpuflags="-mcpu=750"
3096 disable altivec
3097 ;;
3098 g4|745*|ppc745*|powerpc745*)
3099 cpuflags="-mcpu=7450"
3100 ;;
3101 74*|ppc74*|powerpc74*)
3102 cpuflags="-mcpu=7400"
3103 ;;
3104 g5|970|ppc970|powerpc970)
3105 cpuflags="-mcpu=970"
3106 ;;
3107 power[3-7]*)
3108 cpuflags="-mcpu=$cpu"
3109 ;;
3110 cell)
3111 cpuflags="-mcpu=cell"
3112 enable ldbrx
3113 ;;
3114 e500mc)
3115 cpuflags="-mcpu=e500mc"
3116 disable altivec
3117 ;;
3118 e500v2)
3119 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3120 disable altivec
3121 ;;
3122 e500)
3123 cpuflags="-mcpu=8540 -mhard-float"
3124 disable altivec
3125 ;;
3126 esac
3127
3128 elif enabled sparc; then
3129
3130 case $cpu in
3131 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3132 cpuflags="-mcpu=$cpu"
3133 disable vis
3134 ;;
3135 ultrasparc*|niagara[234])
3136 cpuflags="-mcpu=$cpu"
3137 ;;
3138 esac
3139
3140 elif enabled x86; then
3141
3142 case $cpu in
3143 i[345]86|pentium)
3144 cpuflags="-march=$cpu"
3145 disable mmx
3146 ;;
3147 # targets that do NOT support nopl and conditional mov (cmov)
3148 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3149 cpuflags="-march=$cpu"
3150 disable i686
3151 ;;
3152 # targets that do support nopl and conditional mov (cmov)
3153 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3154 cpuflags="-march=$cpu"
3155 enable i686
3156 enable fast_cmov
3157 ;;
3158 # targets that do support conditional mov but on which it's slow
3159 pentium4|pentium4m|prescott|nocona)
3160 cpuflags="-march=$cpu"
3161 enable i686
3162 disable fast_cmov
3163 ;;
3164 esac
3165
3166 fi
3167
3168 if [ "$cpu" != generic ]; then
3169 add_cflags $cpuflags
3170 add_asflags $cpuflags
3171 fi
3172
3173 # compiler sanity check
3174 check_exec <<EOF
3175 int main(void){ return 0; }
3176 EOF
3177 if test "$?" != 0; then
3178 echo "$cc is unable to create an executable file."
3179 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3180 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3181 echo "Only do this if you know what cross compiling means."
3182 fi
3183 die "C compiler test failed."
3184 fi
3185
3186 add_cppflags -D_ISOC99_SOURCE
3187 check_cflags -std=c99
3188 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3189 #include <stdlib.h>
3190 EOF
3191 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3192 #include <stdlib.h>
3193 EOF
3194
3195 add_host_cppflags -D_ISOC99_SOURCE
3196 check_host_cflags -std=c99
3197 check_host_cflags -Wall
3198 check_host_cflags -O3
3199
3200 check_64bit(){
3201 arch32=$1
3202 arch64=$2
3203 expr=$3
3204 check_code cc "" "int test[2*($expr) - 1]" &&
3205 subarch=$arch64 || subarch=$arch32
3206 }
3207
3208 case "$arch" in
3209 aarch64|alpha|ia64)
3210 spic=$shared
3211 ;;
3212 mips)
3213 check_64bit mips mips64 '_MIPS_SIM > 1'
3214 spic=$shared
3215 ;;
3216 parisc)
3217 check_64bit parisc parisc64 'sizeof(void *) > 4'
3218 spic=$shared
3219 ;;
3220 ppc)
3221 check_64bit ppc ppc64 'sizeof(void *) > 4'
3222 spic=$shared
3223 ;;
3224 sparc)
3225 check_64bit sparc sparc64 'sizeof(void *) > 4'
3226 spic=$shared
3227 ;;
3228 x86)
3229 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3230 if test "$subarch" = "x86_64"; then
3231 spic=$shared
3232 fi
3233 ;;
3234 esac
3235
3236 enable $subarch
3237 enabled spic && enable_weak pic
3238
3239 # OS specific
3240 case $target_os in
3241 aix)
3242 SHFLAGS=-shared
3243 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3244 enabled shared && add_ldflags -Wl,-brtl
3245 ;;
3246 haiku)
3247 prefix_default="/boot/common"
3248 network_extralibs="-lnetwork"
3249 host_libs=
3250 ;;
3251 sunos)
3252 SHFLAGS='-shared -Wl,-h,$$(@F)'
3253 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3254 network_extralibs="-lsocket -lnsl"
3255 # When using suncc to build, the Solaris linker will mark
3256 # an executable with each instruction set encountered by
3257 # the Solaris assembler. As our libraries contain their own
3258 # guards for processor-specific code, instead suppress
3259 # generation of the HWCAPS ELF section on Solaris x86 only.
3260 enabled_all suncc x86 &&
3261 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3262 add_ldflags -Wl,-M,mapfile
3263 nm_default='nm -P -g'
3264 ;;
3265 netbsd)
3266 disable symver
3267 oss_indev_extralibs="-lossaudio"
3268 oss_outdev_extralibs="-lossaudio"
3269 ;;
3270 openbsd|bitrig)
3271 disable symver
3272 SHFLAGS='-shared'
3273 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3274 SLIB_INSTALL_LINKS=
3275 oss_indev_extralibs="-lossaudio"
3276 oss_outdev_extralibs="-lossaudio"
3277 ;;
3278 dragonfly)
3279 disable symver
3280 ;;
3281 freebsd)
3282 ;;
3283 bsd/os)
3284 add_extralibs -lpoll -lgnugetopt
3285 ;;
3286 darwin)
3287 gas="gas-preprocessor.pl $cc"
3288 enabled ppc && add_asflags -force_cpusubtype_ALL
3289 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3290 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3291 add_ldflags -Wl,-dynamic,-search_paths_first
3292 SLIBSUF=".dylib"
3293 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3294 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3295 objformat="macho"
3296 enabled x86_64 && objformat="macho64"
3297 enabled_any pic shared ||
3298 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3299 ;;
3300 mingw32*)
3301 if test $target_os = "mingw32ce"; then
3302 disable network
3303 else
3304 target_os=mingw32
3305 fi
3306 LIBTARGET=i386
3307 if enabled x86_64; then
3308 LIBTARGET="i386:x86-64"
3309 elif enabled arm; then
3310 LIBTARGET=arm-wince
3311 fi
3312 check_ldflags -Wl,--nxcompat
3313 check_ldflags -Wl,--dynamicbase
3314 shlibdir_default="$bindir_default"
3315 SLIBPREF=""
3316 SLIBSUF=".dll"
3317 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3318 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3319 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3320 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3321 SLIB_INSTALL_LINKS=
3322 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3323 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3324 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3325 objformat="win32"
3326 dlltool="${cross_prefix}dlltool"
3327 ranlib=:
3328 enable dos_paths
3329 ;;
3330 win32|win64)
3331 disable symver
3332 if enabled shared; then
3333 # Link to the import library instead of the normal static library
3334 # for shared libs.
3335 LD_LIB='%.lib'
3336 # Cannot build both shared and static libs with MSVC or icl.
3337 disable static
3338 fi
3339 shlibdir_default="$bindir_default"
3340 SLIBPREF=""
3341 SLIBSUF=".dll"
3342 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3343 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3344 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3345 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3346 SLIB_INSTALL_LINKS=
3347 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3348 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3349 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3350 objformat="win32"
3351 ranlib=:
3352 enable dos_paths
3353 ;;
3354 cygwin*)
3355 target_os=cygwin
3356 shlibdir_default="$bindir_default"
3357 SLIBPREF="cyg"
3358 SLIBSUF=".dll"
3359 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3360 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3361 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3362 SLIB_INSTALL_LINKS=
3363 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3364 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3365 objformat="win32"
3366 enable dos_paths
3367 ;;
3368 *-dos|freedos|opendos)
3369 network_extralibs="-lsocket"
3370 objformat="coff"
3371 enable dos_paths
3372 add_cppflags -U__STRICT_ANSI__
3373 ;;
3374 linux)
3375 enable dv1394
3376 ;;
3377 irix*)
3378 target_os=irix
3379 ranlib="echo ignoring ranlib"
3380 ;;
3381 os/2*)
3382 ln_s="cp -f"
3383 objformat="aout"
3384 add_cppflags -D_GNU_SOURCE
3385 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3386 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3387 LIBSUF="_s.a"
3388 SLIBPREF=""
3389 SLIBSUF=".dll"
3390 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3391 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3392 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3393 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3394 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3395 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3396 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3397 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3398 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3399 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3400 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3401 enable dos_paths
3402 ;;
3403 gnu/kfreebsd)
3404 add_cppflags -D_BSD_SOURCE
3405 ;;
3406 gnu)
3407 ;;
3408 qnx)
3409 add_cppflags -D_QNX_SOURCE
3410 network_extralibs="-lsocket"
3411 ;;
3412 symbian)
3413 SLIBSUF=".dll"
3414 enable dos_paths
3415 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3416 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3417 add_ldflags -Wl,--target1-abs,--no-undefined \
3418 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3419 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3420 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3421 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3422 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3423 ;;
3424 osf1)
3425 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3426 ;;
3427 minix)
3428 ;;
3429 plan9)
3430 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3431 -D_REENTRANT_SOURCE \
3432 -D_RESEARCH_SOURCE \
3433 -DFD_SETSIZE=96 \
3434 -DHAVE_SOCK_OPTS
3435 add_compat strtod.o strtod=avpriv_strtod
3436 network_extralibs='-lbsd'
3437 exeobjs=compat/plan9/main.o
3438 disable avserver
3439 cp_f='cp'
3440 ;;
3441 none)
3442 ;;
3443 *)
3444 die "Unknown OS '$target_os'."
3445 ;;
3446 esac
3447
3448 # determine libc flavour
3449
3450 probe_libc(){
3451 pfx=$1
3452 pfx_no_=${pfx%_}
3453 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3454 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3455 eval ${pfx}libc_type=uclibc
3456 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3457 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3458 eval ${pfx}libc_type=glibc
3459 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3460 # MinGW headers can be installed on Cygwin, so check for newlib first.
3461 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3462 eval ${pfx}libc_type=newlib
3463 add_${pfx}cppflags -U__STRICT_ANSI__
3464 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3465 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3466 eval ${pfx}libc_type=mingw64
3467 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3468 eval test \$${pfx_no_}cc_type = "gcc" &&
3469 add_${pfx}cppflags -D__printf__=__gnu_printf__
3470 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3471 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3472 eval ${pfx}libc_type=mingw32
3473 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3474 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3475 die "ERROR: MinGW32 runtime version must be >= 3.15."
3476 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3477 eval test \$${pfx_no_}cc_type = "gcc" &&
3478 add_${pfx}cppflags -D__printf__=__gnu_printf__
3479 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3480 eval ${pfx}libc_type=msvcrt
3481 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3482 # 0x601 by default unless something else is set by the user.
3483 # This can easily lead to us detecting functions only present
3484 # in such new versions and producing binaries requiring windows 7.0.
3485 # Therefore explicitly set the default to XP unless the user has
3486 # set something else on the command line.
3487 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3488 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3489 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3490 eval ${pfx}libc_type=klibc
3491 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3492 eval ${pfx}libc_type=bionic
3493 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3494 eval ${pfx}libc_type=solaris
3495 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3496 fi
3497 }
3498
3499 probe_libc
3500 test -n "$libc_type" && enable libc_$libc_type
3501 probe_libc host_
3502 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3503
3504 case $libc_type in
3505 bionic)
3506 add_compat strtod.o strtod=avpriv_strtod
3507 ;;
3508 msvcrt)
3509 add_compat strtod.o strtod=avpriv_strtod
3510 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3511 _snprintf=avpriv_snprintf \
3512 vsnprintf=avpriv_vsnprintf
3513 ;;
3514 esac
3515
3516 # hacks for compiler/libc/os combinations
3517
3518 if enabled_all tms470 libc_glibc; then
3519 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3520 add_cppflags -D__USER_LABEL_PREFIX__=
3521 add_cppflags -D__builtin_memset=memset
3522 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3523 add_cflags -pds=48 # incompatible redefinition of macro
3524 fi
3525
3526 if enabled_all ccc libc_glibc; then
3527 add_ldflags -Wl,-z,now # calls to libots crash without this
3528 fi
3529
3530 esc(){
3531 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3532 }
3533
3534 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3535
3536 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3537
3538 set_default $PATHS_LIST
3539 set_default nm
3540
3541 # we need to build at least one lib type
3542 if ! enabled_any static shared; then
3543 cat <<EOF
3544 At least one library type must be built.
3545 Specify --enable-static to build the static libraries or --enable-shared to
3546 build the shared libraries as well. To only build the shared libraries specify
3547 --disable-static in addition to --enable-shared.
3548 EOF
3549 exit 1;
3550 fi
3551
3552 die_license_disabled() {
3553 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3554 }
3555
3556 die_license_disabled gpl libcdio
3557 die_license_disabled gpl libx264
3558 die_license_disabled gpl libx265
3559 die_license_disabled gpl libxavs
3560 die_license_disabled gpl libxvid
3561 die_license_disabled gpl x11grab
3562
3563 die_license_disabled nonfree libfaac
3564 die_license_disabled nonfree libfdk_aac
3565 die_license_disabled nonfree openssl
3566
3567 die_license_disabled version3 libopencore_amrnb
3568 die_license_disabled version3 libopencore_amrwb
3569 die_license_disabled version3 libvo_aacenc
3570 die_license_disabled version3 libvo_amrwbenc
3571
3572 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3573
3574 disabled optimizations || check_cflags -fomit-frame-pointer
3575
3576 enable_weak_pic() {
3577 disabled pic && return
3578 enable pic
3579 add_cppflags -DPIC
3580 case "$target_os" in
3581 mingw*|cygwin*)
3582 ;;
3583 *)
3584 add_cflags -fPIC
3585 ;;
3586 esac
3587 add_asflags -fPIC
3588 }
3589
3590 enabled pic && enable_weak_pic
3591
3592 check_cc <<EOF || die "Symbol mangling check failed."
3593 int ff_extern;
3594 EOF
3595 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3596 extern_prefix=${sym%%ff_extern*}
3597
3598 check_cc <<EOF && enable_weak inline_asm
3599 void foo(void) { __asm__ volatile ("" ::); }
3600 EOF
3601
3602 _restrict=
3603 for restrict_keyword in restrict __restrict__ __restrict; do
3604 check_cc <<EOF && _restrict=$restrict_keyword && break
3605 void foo(char * $restrict_keyword p);
3606 EOF
3607 done
3608
3609 check_cc <<EOF && enable pragma_deprecated
3610 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3611 EOF
3612
3613 check_cc <<EOF && enable attribute_packed
3614 struct { int x; } __attribute__((packed)) x;
3615 EOF
3616
3617 check_cc <<EOF && enable attribute_may_alias
3618 union { int x; } __attribute__((may_alias)) x;
3619 EOF
3620
3621 check_cc <<EOF || die "endian test failed"
3622 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3623 EOF
3624 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3625
3626 check_inline_asm inline_asm_labels '"1:\n"'
3627
3628 if enabled aarch64; then
3629 # internal assembler in clang 3.3 does not support this instruction
3630 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3631 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3632
3633 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3634
3635 elif enabled alpha; then
3636
3637 check_cflags -mieee
3638
3639 elif enabled arm; then
3640
3641 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3642 enabled thumb && check_cflags -mthumb || check_cflags -marm
3643 nogas=die
3644
3645 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3646 enable vfp_args
3647 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3648 case "${cross_prefix:-$cc}" in
3649 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3650 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3651 __asm__ (".eabi_attribute 28, 1");
3652 int main(void) { return 0; }
3653 EOF
3654 esac
3655 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3656 fi
3657
3658 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3659 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3660 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3661 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3662 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3663 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3664
3665 [ $target_os = linux ] ||
3666 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3667 $ARCH_EXT_LIST_ARM
3668
3669 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3670
3671 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3672
3673 elif enabled mips; then
3674
3675 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3676
3677 elif enabled parisc; then
3678
3679 if enabled gcc; then
3680 case $($cc -dumpversion) in
3681 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3682 esac
3683 fi
3684
3685 elif enabled ppc; then
3686
3687 enable local_aligned_8 local_aligned_16
3688
3689 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3690 check_inline_asm ibm_asm '"add 0, 0, 0"'
3691 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3692 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3693
3694 # AltiVec flags: The FSF version of GCC differs from the Apple version
3695 if enabled altivec; then
3696 nogas=warn
3697 check_cflags -maltivec -<