threads: Check w32threads dependencies at the configure stage
[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 [$arch]
246 --cpu=CPU select the minimum required CPU (affects
247 instruction selection, may crash on older CPUs)
248 --enable-pic build position-independent code
249 --enable-sram allow use of on-chip SRAM
250 --enable-thumb compile for Thumb instruction set
251 --disable-symver disable symbol versioning
252 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
253 --disable-safe-bitstream-reader
254 disable buffer boundary checking in bitreaders
255 (faster, but may crash)
256 --enable-memalign-hack emulate memalign, interferes with memory debuggers
257 --enable-lto use link-time optimization
258
259 Optimization options (experts only):
260 --disable-asm disable all assembler optimizations
261 --disable-altivec disable AltiVec optimizations
262 --disable-amd3dnow disable 3DNow! optimizations
263 --disable-amd3dnowext disable 3DNow! extended optimizations
264 --disable-mmx disable MMX optimizations
265 --disable-mmxext disable MMXEXT optimizations
266 --disable-sse disable SSE optimizations
267 --disable-sse2 disable SSE2 optimizations
268 --disable-sse3 disable SSE3 optimizations
269 --disable-ssse3 disable SSSE3 optimizations
270 --disable-sse4 disable SSE4 optimizations
271 --disable-sse42 disable SSE4.2 optimizations
272 --disable-avx disable AVX optimizations
273 --disable-fma4 disable FMA4 optimizations
274 --disable-avx2 disable AVX2 optimizations
275 --disable-armv5te disable armv5te optimizations
276 --disable-armv6 disable armv6 optimizations
277 --disable-armv6t2 disable armv6t2 optimizations
278 --disable-vfp disable VFP optimizations
279 --disable-neon disable NEON optimizations
280 --disable-vis disable VIS optimizations
281 --disable-inline-asm disable use of inline assembler
282 --disable-yasm disable use of yasm assembler
283
284 Developer options (useful when working on Libav itself):
285 --disable-debug disable debugging symbols
286 --enable-debug=LEVEL set the debug level [$debuglevel]
287 --disable-optimizations disable compiler optimizations
288 --enable-extra-warnings enable more compiler warnings
289 --samples=PATH location of test samples for FATE, if not set use
290 \$LIBAV_SAMPLES at make invocation time.
291 --enable-neon-clobber-test check NEON registers for clobbering (should be
292 used only for debugging purposes)
293 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
294 should be used only for debugging purposes)
295 --enable-random randomly enable/disable components
296 --disable-random
297 --enable-random=LIST randomly enable/disable specific components or
298 --disable-random=LIST component groups. LIST is a comma-separated list
299 of NAME[:PROB] entries where NAME is a component
300 (group) and PROB the probability associated with
301 NAME (default 0.5).
302 --random-seed=VALUE seed value for --enable/disable-random
303
304 NOTE: Object files are built at the place where configure is launched.
305 EOF
306 exit 0
307 }
308
309 quotes='""'
310
311 log(){
312 echo "$@" >> $logfile
313 }
314
315 log_file(){
316 log BEGIN $1
317 pr -n -t $1 >> $logfile
318 log END $1
319 }
320
321 echolog(){
322 log "$@"
323 echo "$@"
324 }
325
326 warn(){
327 log "WARNING: $*"
328 WARNINGS="${WARNINGS}WARNING: $*\n"
329 }
330
331 die(){
332 echolog "$@"
333 cat <<EOF
334
335 If you think configure made a mistake, make sure you are using the latest
336 version from Git. If the latest version fails, report the problem to the
337 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
338 EOF
339 if disabled logging; then
340 cat <<EOF
341 Rerun configure with logging enabled (do not use --disable-logging), and
342 include the log this produces with your report.
343 EOF
344 else
345 cat <<EOF
346 Include the log file "$logfile" produced by configure as this will help
347 solving the problem.
348 EOF
349 fi
350 exit 1
351 }
352
353 # Avoid locale weirdness, besides we really just want to translate ASCII.
354 toupper(){
355 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
356 }
357
358 tolower(){
359 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
360 }
361
362 c_escape(){
363 echo "$*" | sed 's/["\\]/\\\0/g'
364 }
365
366 sh_quote(){
367 v=$(echo "$1" | sed "s/'/'\\\\''/g")
368 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
369 echo "$v"
370 }
371
372 cleanws(){
373 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
374 }
375
376 filter(){
377 pat=$1
378 shift
379 for v; do
380 eval "case $v in $pat) echo $v ;; esac"
381 done
382 }
383
384 filter_out(){
385 pat=$1
386 shift
387 for v; do
388 eval "case $v in $pat) ;; *) echo $v ;; esac"
389 done
390 }
391
392 map(){
393 m=$1
394 shift
395 for v; do eval $m; done
396 }
397
398 add_suffix(){
399 suffix=$1
400 shift
401 for v; do echo ${v}${suffix}; done
402 }
403
404 set_all(){
405 value=$1
406 shift
407 for var in $*; do
408 eval $var=$value
409 done
410 }
411
412 set_weak(){
413 value=$1
414 shift
415 for var; do
416 eval : \${$var:=$value}
417 done
418 }
419
420 sanitize_var_name(){
421 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
422 }
423
424 set_safe(){
425 var=$1
426 shift
427 eval $(sanitize_var_name "$var")='$*'
428 }
429
430 get_safe(){
431 eval echo \$$(sanitize_var_name "$1")
432 }
433
434 pushvar(){
435 for pvar in $*; do
436 eval level=\${${pvar}_level:=0}
437 eval ${pvar}_${level}="\$$pvar"
438 eval ${pvar}_level=$(($level+1))
439 done
440 }
441
442 popvar(){
443 for pvar in $*; do
444 eval level=\${${pvar}_level:-0}
445 test $level = 0 && continue
446 eval level=$(($level-1))
447 eval $pvar="\${${pvar}_${level}}"
448 eval ${pvar}_level=$level
449 eval unset ${pvar}_${level}
450 done
451 }
452
453 enable(){
454 set_all yes $*
455 }
456
457 disable(){
458 set_all no $*
459 }
460
461 enable_weak(){
462 set_weak yes $*
463 }
464
465 disable_weak(){
466 set_weak no $*
467 }
468
469 enable_safe(){
470 for var; do
471 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472 done
473 }
474
475 disable_safe(){
476 for var; do
477 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
478 done
479 }
480
481 do_enable_deep(){
482 for var; do
483 enabled $var && continue
484 eval sel="\$${var}_select"
485 eval sgs="\$${var}_suggest"
486 pushvar var sgs
487 enable_deep $sel
488 popvar sgs
489 enable_deep_weak $sgs
490 popvar var
491 done
492 }
493
494 enable_deep(){
495 do_enable_deep $*
496 enable $*
497 }
498
499 enable_deep_weak(){
500 for var; do
501 disabled $var && continue
502 pushvar var
503 do_enable_deep $var
504 popvar var
505 enable_weak $var
506 done
507 }
508
509 enabled(){
510 test "${1#!}" = "$1" && op== || op=!=
511 eval test "x\$${1#!}" $op "xyes"
512 }
513
514 disabled(){
515 test "${1#!}" = "$1" && op== || op=!=
516 eval test "x\$${1#!}" $op "xno"
517 }
518
519 enabled_all(){
520 for opt; do
521 enabled $opt || return 1
522 done
523 }
524
525 disabled_all(){
526 for opt; do
527 disabled $opt || return 1
528 done
529 }
530
531 enabled_any(){
532 for opt; do
533 enabled $opt && return 0
534 done
535 }
536
537 disabled_any(){
538 for opt; do
539 disabled $opt && return 0
540 done
541 return 1
542 }
543
544 set_default(){
545 for opt; do
546 eval : \${$opt:=\$${opt}_default}
547 done
548 }
549
550 is_in(){
551 value=$1
552 shift
553 for var in $*; do
554 [ $var = $value ] && return 0
555 done
556 return 1
557 }
558
559 do_check_deps(){
560 for cfg; do
561 cfg="${cfg#!}"
562 enabled ${cfg}_checking && die "Circular dependency for $cfg."
563 disabled ${cfg}_checking && continue
564 enable ${cfg}_checking
565 append allopts $cfg
566
567 eval dep_all="\$${cfg}_deps"
568 eval dep_any="\$${cfg}_deps_any"
569 eval dep_sel="\$${cfg}_select"
570 eval dep_sgs="\$${cfg}_suggest"
571 eval dep_ifa="\$${cfg}_if"
572 eval dep_ifn="\$${cfg}_if_any"
573
574 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
575 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
576 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577
578 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
579 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
580 enabled_all $dep_all || disable $cfg
581 enabled_any $dep_any || disable $cfg
582 disabled_any $dep_sel && disable $cfg
583
584 if enabled $cfg; then
585 enable_deep $dep_sel
586 enable_deep_weak $dep_sgs
587 fi
588
589 disable ${cfg}_checking
590 done
591 }
592
593 check_deps(){
594 unset allopts
595
596 do_check_deps "$@"
597
598 for cfg in $allopts; do
599 enabled $cfg || continue
600 eval dep_extralibs="\$${cfg}_extralibs"
601 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
602 done
603 }
604
605 print_config(){
606 pfx=$1
607 files=$2
608 shift 2
609 map 'eval echo "$v \${$v:-no}"' "$@" |
610 awk "BEGIN { split(\"$files\", files) }
611 {
612 c = \"$pfx\" toupper(\$1);
613 v = \$2;
614 sub(/yes/, 1, v);
615 sub(/no/, 0, v);
616 for (f in files) {
617 file = files[f];
618 if (file ~ /\\.h\$/) {
619 printf(\"#define %s %d\\n\", c, v) >>file;
620 } else if (file ~ /\\.asm\$/) {
621 printf(\"%%define %s %d\\n\", c, v) >>file;
622 } else if (file ~ /\\.mak\$/) {
623 n = -v ? \"\" : \"!\";
624 printf(\"%s%s=yes\\n\", n, c) >>file;
625 }
626 }
627 }"
628 }
629
630 print_enabled(){
631 suf=$1
632 shift
633 for v; do
634 enabled $v && printf "%s\n" ${v%$suf};
635 done
636 }
637
638 append(){
639 var=$1
640 shift
641 eval "$var=\"\$$var $*\""
642 }
643
644 prepend(){
645 var=$1
646 shift
647 eval "$var=\"$* \$$var\""
648 }
649
650 add_cppflags(){
651 append CPPFLAGS "$@"
652 }
653
654 add_cflags(){
655 append CFLAGS $($cflags_filter "$@")
656 }
657
658 add_asflags(){
659 append ASFLAGS $($asflags_filter "$@")
660 }
661
662 add_ldflags(){
663 append LDFLAGS $($ldflags_filter "$@")
664 }
665
666 add_stripflags(){
667 append STRIPFLAGS "$@"
668 }
669
670 add_extralibs(){
671 prepend extralibs $($ldflags_filter "$@")
672 }
673
674 add_host_cppflags(){
675 append host_cppflags "$@"
676 }
677
678 add_host_cflags(){
679 append host_cflags $($host_cflags_filter "$@")
680 }
681
682 add_host_ldflags(){
683 append host_ldflags $($host_ldflags_filter "$@")
684 }
685
686 add_compat(){
687 append compat_objs $1
688 shift
689 map 'add_cppflags -D$v' "$@"
690 }
691
692 check_cmd(){
693 log "$@"
694 "$@" >> $logfile 2>&1
695 }
696
697 cc_o(){
698 eval printf '%s\\n' $CC_O
699 }
700
701 cc_e(){
702 eval printf '%s\\n' $CC_E
703 }
704
705 check_cc(){
706 log check_cc "$@"
707 cat > $TMPC
708 log_file $TMPC
709 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
710 }
711
712 check_cpp(){
713 log check_cpp "$@"
714 cat > $TMPC
715 log_file $TMPC
716 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
717 }
718
719 as_o(){
720 eval printf '%s\\n' $AS_O
721 }
722
723 check_as(){
724 log check_as "$@"
725 cat > $TMPS
726 log_file $TMPS
727 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
728 }
729
730 check_inline_asm(){
731 log check_inline_asm "$@"
732 name="$1"
733 code="$2"
734 shift 2
735 disable $name
736 check_cc "$@" <<EOF && enable $name
737 void foo(void){ __asm__ volatile($code); }
738 EOF
739 }
740
741 check_insn(){
742 log check_insn "$@"
743 check_inline_asm ${1}_inline "\"$2\""
744 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
745 }
746
747 check_yasm(){
748 log check_yasm "$@"
749 echo "$1" > $TMPS
750 log_file $TMPS
751 shift 1
752 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
753 }
754
755 ld_o(){
756 eval printf '%s\\n' $LD_O
757 }
758
759 check_ld(){
760 log check_ld "$@"
761 flags=$(filter_out '-l*' "$@")
762 libs=$(filter '-l*' "$@")
763 check_cc $($cflags_filter $flags) || return
764 flags=$($ldflags_filter $flags)
765 libs=$($ldflags_filter $libs)
766 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
767 }
768
769 print_include(){
770 hdr=$1
771 test "${hdr%.h}" = "${hdr}" &&
772 echo "#include $hdr" ||
773 echo "#include <$hdr>"
774 }
775
776 check_code(){
777 log check_code "$@"
778 check=$1
779 headers=$2
780 code=$3
781 shift 3
782 {
783 for hdr in $headers; do
784 print_include $hdr
785 done
786 echo "int main(void) { $code; return 0; }"
787 } | check_$check "$@"
788 }
789
790 check_cppflags(){
791 log check_cppflags "$@"
792 check_cc "$@" <<EOF && append CPPFLAGS "$@"
793 int x;
794 EOF
795 }
796
797 test_cflags(){
798 log test_cflags "$@"
799 set -- $($cflags_filter "$@")
800 check_cc "$@" <<EOF
801 int x;
802 EOF
803 }
804
805 check_cflags(){
806 log check_cflags "$@"
807 test_cflags "$@" && add_cflags "$@"
808 }
809
810 test_ldflags(){
811 log test_ldflags "$@"
812 check_ld "$@" <<EOF
813 int main(void){ return 0; }
814 EOF
815 }
816
817 check_ldflags(){
818 log check_ldflags "$@"
819 test_ldflags "$@" && add_ldflags "$@"
820 }
821
822 test_stripflags(){
823 log test_stripflags "$@"
824 # call check_cc to get a fresh TMPO
825 check_cc <<EOF
826 int main(void) { return 0; }
827 EOF
828 check_cmd $strip $STRIPFLAGS "$@" $TMPO
829 }
830
831 check_stripflags(){
832 log check_stripflags "$@"
833 test_stripflags "$@" && add_stripflags "$@"
834 }
835
836 check_header(){
837 log check_header "$@"
838 header=$1
839 shift
840 disable_safe $header
841 check_cpp "$@" <<EOF && enable_safe $header
842 #include <$header>
843 int x;
844 EOF
845 }
846
847 check_func(){
848 log check_func "$@"
849 func=$1
850 shift
851 disable $func
852 check_ld "$@" <<EOF && enable $func
853 extern int $func();
854 int main(void){ $func(); }
855 EOF
856 }
857
858 check_mathfunc(){
859 log check_mathfunc "$@"
860 func=$1
861 narg=$2
862 shift 2
863 test $narg = 2 && args="f, g" || args="f"
864 disable $func
865 check_ld "$@" <<EOF && enable $func
866 #include <math.h>
867 float foo(float f, float g) { return $func($args); }
868 int main(void){ return 0; }
869 EOF
870 }
871
872 check_func_headers(){
873 log check_func_headers "$@"
874 headers=$1
875 funcs=$2
876 shift 2
877 {
878 for hdr in $headers; do
879 print_include $hdr
880 done
881 for func in $funcs; do
882 echo "long check_$func(void) { return (long) $func; }"
883 done
884 echo "int main(void) { return 0; }"
885 } | check_ld "$@" && enable $funcs && enable_safe $headers
886 }
887
888 check_cpp_condition(){
889 log check_cpp_condition "$@"
890 header=$1
891 condition=$2
892 shift 2
893 check_cpp "$@" <<EOF
894 #include <$header>
895 #if !($condition)
896 #error "unsatisfied condition: $condition"
897 #endif
898 EOF
899 }
900
901 check_lib(){
902 log check_lib "$@"
903 header="$1"
904 func="$2"
905 shift 2
906 check_header $header && check_func $func "$@" && add_extralibs "$@"
907 }
908
909 check_lib2(){
910 log check_lib2 "$@"
911 headers="$1"
912 funcs="$2"
913 shift 2
914 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
915 }
916
917 check_pkg_config(){
918 log check_pkg_config "$@"
919 pkg="$1"
920 headers="$2"
921 funcs="$3"
922 shift 3
923 check_cmd $pkg_config --exists --print-errors $pkg || return
924 pkg_cflags=$($pkg_config --cflags $pkg)
925 pkg_libs=$($pkg_config --libs $pkg)
926 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
927 set_safe ${pkg}_cflags $pkg_cflags &&
928 set_safe ${pkg}_libs $pkg_libs
929 }
930
931 check_exec(){
932 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
933 }
934
935 check_exec_crash(){
936 code=$(cat)
937
938 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
939 # are safe but may not be available everywhere. Thus we use
940 # raise(SIGTERM) instead. The check is run in a subshell so we
941 # can redirect the "Terminated" message from the shell. SIGBUS
942 # is not defined by standard C so it is used conditionally.
943
944 (check_exec "$@") >> $logfile 2>&1 <<EOF
945 #include <signal.h>
946 static void sighandler(int sig){
947 raise(SIGTERM);
948 }
949 int foo(void){
950 $code
951 }
952 int (*func_ptr)(void) = foo;
953 int main(void){
954 signal(SIGILL, sighandler);
955 signal(SIGFPE, sighandler);
956 signal(SIGSEGV, sighandler);
957 #ifdef SIGBUS
958 signal(SIGBUS, sighandler);
959 #endif
960 return func_ptr();
961 }
962 EOF
963 }
964
965 check_type(){
966 log check_type "$@"
967 headers=$1
968 type=$2
969 shift 2
970 disable_safe "$type"
971 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
972 }
973
974 check_struct(){
975 log check_struct "$@"
976 headers=$1
977 struct=$2
978 member=$3
979 shift 3
980 disable_safe "${struct}_${member}"
981 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
982 enable_safe "${struct}_${member}"
983 }
984
985 check_builtin(){
986 log check_builtin "$@"
987 name=$1
988 headers=$2
989 builtin=$3
990 shift 3
991 disable "$name"
992 check_code ld "$headers" "$builtin" "$@" && enable "$name"
993 }
994
995 require(){
996 name="$1"
997 header="$2"
998 func="$3"
999 shift 3
1000 check_lib $header $func "$@" || die "ERROR: $name not found"
1001 }
1002
1003 require2(){
1004 name="$1"
1005 headers="$2"
1006 func="$3"
1007 shift 3
1008 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1009 }
1010
1011 require_pkg_config(){
1012 pkg="$1"
1013 check_pkg_config "$@" || die "ERROR: $pkg not found"
1014 add_cflags $(get_safe ${pkg}_cflags)
1015 add_extralibs $(get_safe ${pkg}_libs)
1016 }
1017
1018 hostcc_e(){
1019 eval printf '%s\\n' $HOSTCC_E
1020 }
1021
1022 hostcc_o(){
1023 eval printf '%s\\n' $HOSTCC_O
1024 }
1025
1026 check_host_cc(){
1027 log check_host_cc "$@"
1028 cat > $TMPC
1029 log_file $TMPC
1030 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1031 }
1032
1033 check_host_cpp(){
1034 log check_host_cpp "$@"
1035 cat > $TMPC
1036 log_file $TMPC
1037 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1038 }
1039
1040 check_host_cppflags(){
1041 log check_host_cppflags "$@"
1042 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 check_host_cflags(){
1048 log check_host_cflags "$@"
1049 set -- $($host_cflags_filter "$@")
1050 check_host_cc "$@" <<EOF && append host_cflags "$@"
1051 int x;
1052 EOF
1053 }
1054
1055 check_host_cpp_condition(){
1056 log check_host_cpp_condition "$@"
1057 header=$1
1058 condition=$2
1059 shift 2
1060 check_host_cpp "$@" <<EOF
1061 #include <$header>
1062 #if !($condition)
1063 #error "unsatisfied condition: $condition"
1064 #endif
1065 EOF
1066 }
1067
1068 apply(){
1069 file=$1
1070 shift
1071 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1072 }
1073
1074 cp_if_changed(){
1075 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1076 mkdir -p "$(dirname $2)"
1077 $cp_f "$1" "$2"
1078 }
1079
1080 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1081 # system-dependent things.
1082
1083 COMPONENT_LIST="
1084 bsfs
1085 decoders
1086 demuxers
1087 encoders
1088 filters
1089 hwaccels
1090 indevs
1091 muxers
1092 outdevs
1093 parsers
1094 protocols
1095 "
1096
1097 EXAMPLE_LIST="
1098 avcodec_example
1099 metadata_example
1100 output_example
1101 transcode_aac_example
1102 "
1103
1104 EXTERNAL_LIBRARY_LIST="
1105 avisynth
1106 bzlib
1107 frei0r
1108 gnutls
1109 libcdio
1110 libdc1394
1111 libfaac
1112 libfdk_aac
1113 libfreetype
1114 libgsm
1115 libilbc
1116 libmp3lame
1117 libopencore_amrnb
1118 libopencore_amrwb
1119 libopencv
1120 libopenjpeg
1121 libopus
1122 libpulse
1123 librtmp
1124 libschroedinger
1125 libspeex
1126 libtheora
1127 libvo_aacenc
1128 libvo_amrwbenc
1129 libvorbis
1130 libvpx
1131 libwavpack
1132 libwebp
1133 libx264
1134 libx265
1135 libxavs
1136 libxvid
1137 openssl
1138 x11grab
1139 zlib
1140 "
1141
1142 HWACCEL_LIST="
1143 dxva2
1144 vaapi
1145 vda
1146 vdpau
1147 "
1148 LIBRARY_LIST="
1149 avcodec
1150 avdevice
1151 avfilter
1152 avformat
1153 avresample
1154 avutil
1155 swscale
1156 "
1157
1158 PROGRAM_LIST="
1159 avconv
1160 avplay
1161 avprobe
1162 avserver
1163 "
1164
1165 CONFIG_LIST="
1166 $COMPONENT_LIST
1167 $EXAMPLE_LIST
1168 $EXTERNAL_LIBRARY_LIST
1169 $HWACCEL_LIST
1170 $LIBRARY_LIST
1171 $PROGRAM_LIST
1172 dct
1173 doc
1174 error_resilience
1175 fft
1176 gpl
1177 gray
1178 hardcoded_tables
1179 lsp
1180 lzo
1181 mdct
1182 memalign_hack
1183 neon_clobber_test
1184 network
1185 nonfree
1186 pod2man
1187 pic
1188 rdft
1189 runtime_cpudetect
1190 safe_bitstream_reader
1191 shared
1192 small
1193 sram
1194 static
1195 swscale_alpha
1196 texi2html
1197 thumb
1198 version3
1199 xmm_clobber_test
1200 "
1201
1202 THREADS_LIST='
1203 pthreads
1204 w32threads
1205 '
1206
1207 ATOMICS_LIST='
1208 atomics_gcc
1209 atomics_suncc
1210 atomics_win32
1211 '
1212
1213 ARCH_LIST='
1214 aarch64
1215 alpha
1216 arm
1217 avr32
1218 avr32_ap
1219 avr32_uc
1220 bfin
1221 ia64
1222 m68k
1223 mips
1224 mips64
1225 parisc
1226 ppc
1227 ppc64
1228 s390
1229 sh4
1230 sparc
1231 sparc64
1232 tilegx
1233 tilepro
1234 tomi
1235 x86
1236 x86_32
1237 x86_64
1238 '
1239
1240 ARCH_EXT_LIST_ARM='
1241 armv5te
1242 armv6
1243 armv6t2
1244 neon
1245 vfp
1246 vfpv3
1247 '
1248
1249 ARCH_EXT_LIST_X86='
1250 amd3dnow
1251 amd3dnowext
1252 avx
1253 avx2
1254 fma4
1255 i686
1256 mmx
1257 mmxext
1258 sse
1259 sse2
1260 sse3
1261 sse4
1262 sse42
1263 ssse3
1264 '
1265
1266 ARCH_EXT_LIST="
1267 $ARCH_EXT_LIST_ARM
1268 $ARCH_EXT_LIST_X86
1269 altivec
1270 ppc4xx
1271 vis
1272 "
1273
1274 HAVE_LIST_CMDLINE='
1275 inline_asm
1276 symver
1277 yasm
1278 '
1279
1280 HAVE_LIST_PUB='
1281 bigendian
1282 fast_unaligned
1283 '
1284
1285 MATH_FUNCS="
1286 atanf
1287 atan2f
1288 cbrtf
1289 cosf
1290 exp2
1291 exp2f
1292 expf
1293 isinf
1294 isnan
1295 ldexpf
1296 llrint
1297 llrintf
1298 log2
1299 log2f
1300 log10f
1301 lrint
1302 lrintf
1303 powf
1304 rint
1305 round
1306 roundf
1307 sinf
1308 trunc
1309 truncf
1310 "
1311
1312 HAVE_LIST="
1313 $ARCH_EXT_LIST
1314 $(add_suffix _external $ARCH_EXT_LIST)
1315 $(add_suffix _inline $ARCH_EXT_LIST)
1316 $HAVE_LIST_CMDLINE
1317 $HAVE_LIST_PUB
1318 $THREADS_LIST
1319 $ATOMICS_LIST
1320 $MATH_FUNCS
1321 aligned_malloc
1322 aligned_stack
1323 alsa_asoundlib_h
1324 altivec_h
1325 arpa_inet_h
1326 asm_mod_q
1327 asm_mod_y
1328 atomic_cas_ptr
1329 atomics_native
1330 attribute_may_alias
1331 attribute_packed
1332 cdio_paranoia_h
1333 cdio_paranoia_paranoia_h
1334 closesocket
1335 CommandLineToArgvW
1336 cpunop
1337 CryptGenRandom
1338 dcbzl
1339 dev_bktr_ioctl_bt848_h
1340 dev_bktr_ioctl_meteor_h
1341 dev_ic_bt8xx_h
1342 dev_video_bktr_ioctl_bt848_h
1343 dev_video_meteor_ioctl_meteor_h
1344 direct_h
1345 dlfcn_h
1346 dlopen
1347 dos_paths
1348 dxva_h
1349 ebp_available
1350 ebx_available
1351 fast_64bit
1352 fast_clz
1353 fast_cmov
1354 fcntl
1355 fork
1356 getaddrinfo
1357 gethrtime
1358 getopt
1359 GetProcessAffinityMask
1360 GetProcessMemoryInfo
1361 GetProcessTimes
1362 GetSystemTimeAsFileTime
1363 getrusage
1364 getservbyport
1365 gettimeofday
1366 gnu_as
1367 gsm_h
1368 ibm_asm
1369 inet_aton
1370 io_h
1371 inline_asm_labels
1372 isatty
1373 jack_port_get_latency_range
1374 ldbrx
1375 libc_msvcrt
1376 libdc1394_1
1377 libdc1394_2
1378 local_aligned_16
1379 local_aligned_8
1380 localtime_r
1381 loongson
1382 machine_ioctl_bt848_h
1383 machine_ioctl_meteor_h
1384 machine_rw_barrier
1385 malloc_h
1386 MapViewOfFile
1387 memalign
1388 MemoryBarrier
1389 mkstemp
1390 mm_empty
1391 mmap
1392 mprotect
1393 nanosleep
1394 poll_h
1395 posix_memalign
1396 pragma_deprecated
1397 rdtsc
1398 sched_getaffinity
1399 sdl
1400 SetConsoleTextAttribute
1401 setmode
1402 setrlimit
1403 Sleep
1404 sndio_h
1405 socklen_t
1406 soundcard_h
1407 strerror_r
1408 strptime
1409 strtok_r
1410 struct_addrinfo
1411 struct_group_source_req
1412 struct_ip_mreq_source
1413 struct_ipv6_mreq
1414 struct_pollfd
1415 struct_rusage_ru_maxrss
1416 struct_sockaddr_in6
1417 struct_sockaddr_sa_len
1418 struct_sockaddr_storage
1419 struct_v4l2_frmivalenum_discrete
1420 symver_asm_label
1421 symver_gnu_asm
1422 sync_val_compare_and_swap
1423 sysconf
1424 sysctl
1425 sys_mman_h
1426 sys_param_h
1427 sys_resource_h
1428 sys_select_h
1429 sys_soundcard_h
1430 sys_time_h
1431 sys_un_h
1432 sys_videoio_h
1433 threads
1434 unistd_h
1435 usleep
1436 vdpau_x11
1437 vfp_args
1438 VirtualAlloc
1439 windows_h
1440 winsock2_h
1441 xform_asm
1442 xlib
1443 xmm_clobbers
1444 "
1445
1446 # options emitted with CONFIG_ prefix but not available on the command line
1447 CONFIG_EXTRA="
1448 aandcttables
1449 ac3dsp
1450 audio_frame_queue
1451 dsputil
1452 gcrypt
1453 golomb
1454 gplv3
1455 h263dsp
1456 h264chroma
1457 h264dsp
1458 h264pred
1459 h264qpel
1460 hpeldsp
1461 huffman
1462 intrax8
1463 lgplv3
1464 lpc
1465 mpegaudio
1466 mpegaudiodsp
1467 mpegvideo
1468 mpegvideoenc
1469 nettle
1470 rangecoder
1471 riffdec
1472 riffenc
1473 rtpdec
1474 rtpenc_chain
1475 sinewin
1476 videodsp
1477 vp3dsp
1478 "
1479
1480 CMDLINE_SELECT="
1481 $ARCH_EXT_LIST
1482 $CONFIG_LIST
1483 $HAVE_LIST_CMDLINE
1484 $THREADS_LIST
1485 asm
1486 cross_compile
1487 debug
1488 extra_warnings
1489 logging
1490 lto
1491 optimizations
1492 "
1493
1494 PATHS_LIST='
1495 bindir
1496 datadir
1497 docdir
1498 incdir
1499 libdir
1500 mandir
1501 prefix
1502 shlibdir
1503 '
1504
1505 CMDLINE_SET="
1506 $PATHS_LIST
1507 ar
1508 arch
1509 as
1510 build_suffix
1511 cc
1512 cpu
1513 cross_prefix
1514 dep_cc
1515 extra_version
1516 host_cc
1517 host_cflags
1518 host_ld
1519 host_ldflags
1520 host_libs
1521 host_os
1522 ld
1523 logfile
1524 malloc_prefix
1525 nm
1526 optflags
1527 pkg_config
1528 random_seed
1529 samples
1530 sysinclude
1531 sysroot
1532 target_exec
1533 target_os
1534 target_path
1535 target_samples
1536 toolchain
1537 "
1538
1539 CMDLINE_APPEND="
1540 extra_cflags
1541 host_cppflags
1542 "
1543
1544 # code dependency declarations
1545
1546 # architecture extensions
1547
1548 armv5te_deps="arm"
1549 armv6_deps="arm"
1550 armv6t2_deps="arm"
1551 neon_deps_any="aarch64 arm"
1552 vfp_deps_any="aarch64 arm"
1553 vfpv3_deps="vfp"
1554
1555 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1556
1557 altivec_deps="ppc"
1558 ppc4xx_deps="ppc"
1559
1560 vis_deps="sparc"
1561
1562 cpunop_deps="i686"
1563 x86_64_select="i686"
1564 x86_64_suggest="fast_cmov"
1565
1566 amd3dnow_deps="mmx"
1567 amd3dnowext_deps="amd3dnow"
1568 i686_deps="x86"
1569 mmx_deps="x86"
1570 mmxext_deps="mmx"
1571 sse_deps="mmxext"
1572 sse2_deps="sse"
1573 sse3_deps="sse2"
1574 ssse3_deps="sse3"
1575 sse4_deps="ssse3"
1576 sse42_deps="sse4"
1577 avx_deps="sse42"
1578 fma4_deps="avx"
1579 avx2_deps="avx"
1580
1581 mmx_external_deps="yasm"
1582 mmx_inline_deps="inline_asm"
1583 mmx_suggest="mmx_external mmx_inline"
1584
1585 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1586 eval dep=\$${ext}_deps
1587 eval ${ext}_external_deps='"${dep}_external"'
1588 eval ${ext}_inline_deps='"${dep}_inline"'
1589 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1590 done
1591
1592 aligned_stack_if_any="aarch64 ppc x86"
1593 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1594 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1595 fast_unaligned_if_any="aarch64 ppc x86"
1596
1597 need_memalign="altivec neon sse"
1598
1599 # system capabilities
1600 log2_deps="!libc_msvcrt"
1601
1602 symver_if_any="symver_asm_label symver_gnu_asm"
1603
1604 # threading support
1605 atomics_gcc_if="sync_val_compare_and_swap"
1606 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1607 atomics_win32_if="MemoryBarrier"
1608 atomics_native_if_any="$ATOMICS_LIST"
1609 w32threads_deps="atomics_native"
1610 threads_if_any="$THREADS_LIST"
1611
1612 # subsystems
1613 dct_select="rdft"
1614 error_resilience_select="dsputil"
1615 lpc_select="dsputil"
1616 mdct_select="fft"
1617 rdft_select="fft"
1618 mpegaudio_select="mpegaudiodsp"
1619 mpegaudiodsp_select="dct"
1620 mpegvideo_select="dsputil hpeldsp videodsp"
1621 mpegvideoenc_select="mpegvideo"
1622
1623 # decoders / encoders
1624 aac_decoder_select="mdct sinewin"
1625 aac_encoder_select="audio_frame_queue mdct sinewin"
1626 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1627 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1628 ac3_encoder_select="mdct ac3dsp dsputil"
1629 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1630 aic_decoder_select="dsputil golomb"
1631 alac_encoder_select="lpc"
1632 als_decoder_select="dsputil"
1633 amrnb_decoder_select="lsp"
1634 amrwb_decoder_select="lsp"
1635 amv_decoder_select="dsputil hpeldsp"
1636 ape_decoder_select="dsputil"
1637 asv1_decoder_select="dsputil"
1638 asv1_encoder_select="dsputil"
1639 asv2_decoder_select="dsputil"
1640 asv2_encoder_select="dsputil"
1641 atrac1_decoder_select="mdct sinewin"
1642 atrac3_decoder_select="mdct"
1643 atrac3p_decoder_select="mdct sinewin"
1644 bink_decoder_select="dsputil hpeldsp"
1645 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1646 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1647 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1648 cllc_decoder_select="dsputil"
1649 comfortnoise_encoder_select="lpc"
1650 cook_decoder_select="dsputil mdct sinewin"
1651 cscd_decoder_select="lzo"
1652 cscd_decoder_suggest="zlib"
1653 dca_decoder_select="mdct"
1654 dnxhd_decoder_select="dsputil"
1655 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1656 dvvideo_decoder_select="dsputil"
1657 dvvideo_encoder_select="dsputil"
1658 dxa_decoder_deps="zlib"
1659 eac3_decoder_select="ac3_decoder"
1660 eac3_encoder_select="ac3_encoder"
1661 eamad_decoder_select="aandcttables dsputil mpegvideo"
1662 eatgq_decoder_select="aandcttables dsputil"
1663 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1664 ffv1_decoder_select="dsputil golomb rangecoder"
1665 ffv1_encoder_select="dsputil rangecoder"
1666 ffvhuff_decoder_select="dsputil"
1667 ffvhuff_encoder_select="dsputil huffman"
1668 fic_decoder_select="dsputil golomb"
1669 flac_decoder_select="golomb"
1670 flac_encoder_select="dsputil golomb lpc"
1671 flashsv_decoder_deps="zlib"
1672 flashsv_encoder_deps="zlib"
1673 flashsv2_decoder_deps="zlib"
1674 flv_decoder_select="h263_decoder"
1675 flv_encoder_select="h263_encoder"
1676 fourxm_decoder_select="dsputil"
1677 fraps_decoder_select="dsputil huffman"
1678 g2m_decoder_deps="zlib"
1679 g2m_decoder_select="dsputil"
1680 h261_decoder_select="error_resilience mpegvideo"
1681 h261_encoder_select="aandcttables mpegvideoenc"
1682 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1683 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1684 h263i_decoder_select="h263_decoder"
1685 h263p_encoder_select="h263_encoder"
1686 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1687 h264_decoder_suggest="error_resilience"
1688 hevc_decoder_select="dsputil golomb videodsp"
1689 huffyuv_decoder_select="dsputil"
1690 huffyuv_encoder_select="dsputil huffman"
1691 iac_decoder_select="dsputil fft mdct sinewin"
1692 imc_decoder_select="dsputil fft mdct sinewin"
1693 indeo3_decoder_select="hpeldsp"
1694 interplay_video_decoder_select="hpeldsp"
1695 jpegls_decoder_select="dsputil golomb hpeldsp"
1696 jpegls_encoder_select="golomb"
1697 jv_decoder_select="dsputil"
1698 lagarith_decoder_select="dsputil"
1699 ljpeg_encoder_select="aandcttables mpegvideoenc"
1700 loco_decoder_select="golomb"
1701 mdec_decoder_select="dsputil error_resilience mpegvideo"
1702 metasound_decoder_select="lsp mdct sinewin"
1703 mimic_decoder_select="dsputil hpeldsp"
1704 mjpeg_decoder_select="dsputil hpeldsp"
1705 mjpegb_decoder_select="dsputil hpeldsp"
1706 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1707 mlp_decoder_select="dsputil mlp_parser"
1708 motionpixels_decoder_select="dsputil"
1709 mp1_decoder_select="mpegaudio"
1710 mp1float_decoder_select="mpegaudio"
1711 mp2_decoder_select="mpegaudio"
1712 mp2float_decoder_select="mpegaudio"
1713 mp3_decoder_select="mpegaudio"
1714 mp3adu_decoder_select="mpegaudio"
1715 mp3adufloat_decoder_select="mpegaudio"
1716 mp3float_decoder_select="mpegaudio"
1717 mp3on4_decoder_select="mpegaudio"
1718 mp3on4float_decoder_select="mpegaudio"
1719 mpc7_decoder_select="dsputil mpegaudiodsp"
1720 mpc8_decoder_select="dsputil mpegaudiodsp"
1721 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1722 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1723 mpeg1video_decoder_select="error_resilience mpegvideo"
1724 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1725 mpeg2video_decoder_select="error_resilience mpegvideo"
1726 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1727 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1728 mpeg4_encoder_select="h263_encoder"
1729 msmpeg4v1_decoder_select="h263_decoder"
1730 msmpeg4v2_decoder_select="h263_decoder"
1731 msmpeg4v2_encoder_select="h263_encoder"
1732 msmpeg4v3_decoder_select="h263_decoder"
1733 msmpeg4v3_encoder_select="h263_encoder"
1734 mss2_decoder_select="error_resilience vc1_decoder"
1735 mxpeg_decoder_select="dsputil hpeldsp"
1736 nellymoser_decoder_select="mdct sinewin"
1737 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1738 nuv_decoder_select="dsputil lzo"
1739 png_decoder_deps="zlib"
1740 png_decoder_select="dsputil"
1741 png_encoder_deps="zlib"
1742 png_encoder_select="dsputil"
1743 prores_decoder_select="dsputil"
1744 prores_encoder_select="dsputil"
1745 qcelp_decoder_select="lsp"
1746 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1747 ra_144_encoder_select="audio_frame_queue lpc"
1748 ralf_decoder_select="golomb"
1749 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1750 rv10_encoder_select="h263_encoder"
1751 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1752 rv20_encoder_select="h263_encoder"
1753 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1754 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1755 shorten_decoder_select="golomb"
1756 sipr_decoder_select="lsp"
1757 sp5x_decoder_select="dsputil hpeldsp"
1758 svq1_decoder_select="hpeldsp"
1759 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1760 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1761 svq3_decoder_suggest="error_resilience zlib"
1762 tak_decoder_select="dsputil"
1763 theora_decoder_select="vp3_decoder"
1764 tiff_decoder_suggest="zlib"
1765 tiff_encoder_suggest="zlib"
1766 thp_decoder_select="dsputil hpeldsp"
1767 truehd_decoder_select="mlp_decoder"
1768 truemotion2_decoder_select="dsputil"
1769 truespeech_decoder_select="dsputil"
1770 tscc_decoder_deps="zlib"
1771 twinvq_decoder_select="mdct lsp sinewin"
1772 utvideo_decoder_select="dsputil"
1773 utvideo_encoder_select="dsputil huffman"
1774 vble_decoder_select="dsputil"
1775 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1776 vc1image_decoder_select="vc1_decoder"
1777 vorbis_decoder_select="mdct"
1778 vorbis_encoder_select="mdct"
1779 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1780 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1781 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1782 vp6a_decoder_select="vp6_decoder"
1783 vp6f_decoder_select="vp6_decoder"
1784 vp8_decoder_select="h264pred videodsp"
1785 vp9_decoder_select="videodsp"
1786 webp_decoder_select="vp8_decoder"
1787 wmapro_decoder_select="mdct sinewin"
1788 wmav1_decoder_select="mdct sinewin"
1789 wmav1_encoder_select="mdct sinewin"
1790 wmav2_decoder_select="mdct sinewin"
1791 wmav2_encoder_select="mdct sinewin"
1792 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1793 wmv1_decoder_select="h263_decoder"
1794 wmv1_encoder_select="h263_encoder"
1795 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1796 wmv2_encoder_select="h263_encoder"
1797 wmv3_decoder_select="vc1_decoder"
1798 wmv3image_decoder_select="wmv3_decoder"
1799 zerocodec_decoder_deps="zlib"
1800 zlib_decoder_deps="zlib"
1801 zlib_encoder_deps="zlib"
1802 zmbv_decoder_deps="zlib"
1803 zmbv_encoder_deps="zlib"
1804
1805 # hardware accelerators
1806 dxva2_deps="dxva2api_h"
1807 vaapi_deps="va_va_h"
1808 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1809 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1810 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1811
1812 h263_vaapi_hwaccel_deps="vaapi"
1813 h263_vaapi_hwaccel_select="h263_decoder"
1814 h263_vdpau_hwaccel_deps="vdpau"
1815 h263_vdpau_hwaccel_select="h263_decoder"
1816 h264_dxva2_hwaccel_deps="dxva2"
1817 h264_dxva2_hwaccel_select="h264_decoder"
1818 h264_vaapi_hwaccel_deps="vaapi"
1819 h264_vaapi_hwaccel_select="h264_decoder"
1820 h264_vda_hwaccel_deps="vda"
1821 h264_vda_hwaccel_select="h264_decoder"
1822 h264_vdpau_hwaccel_deps="vdpau"
1823 h264_vdpau_hwaccel_select="h264_decoder"
1824 mpeg1_vdpau_hwaccel_deps="vdpau"
1825 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1826 mpeg2_dxva2_hwaccel_deps="dxva2"
1827 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1828 mpeg2_vaapi_hwaccel_deps="vaapi"
1829 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1830 mpeg2_vdpau_hwaccel_deps="vdpau"
1831 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1832 mpeg4_vaapi_hwaccel_deps="vaapi"
1833 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1834 mpeg4_vdpau_hwaccel_deps="vdpau"
1835 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1836 vc1_dxva2_hwaccel_deps="dxva2"
1837 vc1_dxva2_hwaccel_select="vc1_decoder"
1838 vc1_vaapi_hwaccel_deps="vaapi"
1839 vc1_vaapi_hwaccel_select="vc1_decoder"
1840 vc1_vdpau_hwaccel_deps="vdpau"
1841 vc1_vdpau_hwaccel_select="vc1_decoder"
1842 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1843 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1844 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1845
1846 # parsers
1847 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1848 mpeg4video_parser_select="error_resilience mpegvideo"
1849 mpegvideo_parser_select="error_resilience mpegvideo"
1850 vc1_parser_select="mpegvideo"
1851
1852 # external libraries
1853 libfaac_encoder_deps="libfaac"
1854 libfaac_encoder_select="audio_frame_queue"
1855 libfdk_aac_decoder_deps="libfdk_aac"
1856 libfdk_aac_encoder_deps="libfdk_aac"
1857 libfdk_aac_encoder_select="audio_frame_queue"
1858 libgsm_decoder_deps="libgsm"
1859 libgsm_encoder_deps="libgsm"
1860 libgsm_ms_decoder_deps="libgsm"
1861 libgsm_ms_encoder_deps="libgsm"
1862 libilbc_decoder_deps="libilbc"
1863 libilbc_encoder_deps="libilbc"
1864 libmp3lame_encoder_deps="libmp3lame"
1865 libmp3lame_encoder_select="audio_frame_queue"
1866 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1867 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1868 libopencore_amrnb_encoder_select="audio_frame_queue"
1869 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1870 libopenjpeg_decoder_deps="libopenjpeg"
1871 libopenjpeg_encoder_deps="libopenjpeg"
1872 libopus_decoder_deps="libopus"
1873 libopus_encoder_deps="libopus"
1874 libopus_encoder_select="audio_frame_queue"
1875 libschroedinger_decoder_deps="libschroedinger"
1876 libschroedinger_encoder_deps="libschroedinger"
1877 libspeex_decoder_deps="libspeex"
1878 libspeex_encoder_deps="libspeex"
1879 libspeex_encoder_select="audio_frame_queue"
1880 libtheora_encoder_deps="libtheora"
1881 libvo_aacenc_encoder_deps="libvo_aacenc"
1882 libvo_aacenc_encoder_select="audio_frame_queue"
1883 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1884 libvorbis_encoder_deps="libvorbis"
1885 libvorbis_encoder_select="audio_frame_queue"
1886 libvpx_vp8_decoder_deps="libvpx"
1887 libvpx_vp8_encoder_deps="libvpx"
1888 libvpx_vp9_decoder_deps="libvpx"
1889 libvpx_vp9_encoder_deps="libvpx"
1890 libwavpack_encoder_deps="libwavpack"
1891 libwebp_encoder_deps="libwebp"
1892 libx264_encoder_deps="libx264"
1893 libx265_encoder_deps="libx265"
1894 libxavs_encoder_deps="libxavs"
1895 libxvid_encoder_deps="libxvid"
1896
1897 # demuxers / muxers
1898 ac3_demuxer_select="ac3_parser"
1899 asf_demuxer_select="riffdec"
1900 asf_muxer_select="riffenc"
1901 asf_stream_muxer_select="asf_muxer"
1902 avi_demuxer_select="riffdec"
1903 avi_muxer_select="riffenc"
1904 avisynth_demuxer_deps="avisynth"
1905 avisynth_demuxer_select="riffdec"
1906 caf_demuxer_select="riffdec"
1907 dirac_demuxer_select="dirac_parser"
1908 dxa_demuxer_select="riffdec"
1909 eac3_demuxer_select="ac3_parser"
1910 f4v_muxer_select="mov_muxer"
1911 flac_demuxer_select="flac_parser"
1912 hds_muxer_select="flv_muxer"
1913 hls_muxer_select="mpegts_muxer"
1914 ipod_muxer_select="mov_muxer"
1915 ismv_muxer_select="mov_muxer"
1916 matroska_audio_muxer_select="matroska_muxer"
1917 matroska_demuxer_select="riffdec"
1918 matroska_demuxer_suggest="bzlib lzo zlib"
1919 matroska_muxer_select="riffenc"
1920 mmf_muxer_select="riffenc"
1921 mov_demuxer_select="riffdec"
1922 mov_demuxer_suggest="zlib"
1923 mov_muxer_select="riffenc rtpenc_chain"
1924 mp3_demuxer_select="mpegaudio_parser"
1925 mp4_muxer_select="mov_muxer"
1926 mpegts_muxer_select="adts_muxer latm_muxer"
1927 mpegtsraw_demuxer_select="mpegts_demuxer"
1928 mxf_d10_muxer_select="mxf_muxer"
1929 nut_muxer_select="riffenc"
1930 nuv_demuxer_select="riffdec"
1931 ogg_demuxer_select="golomb"
1932 psp_muxer_select="mov_muxer"
1933 rtp_demuxer_select="sdp_demuxer"
1934 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1935 rtsp_demuxer_select="http_protocol rtpdec"
1936 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1937 sap_demuxer_select="sdp_demuxer"
1938 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1939 sdp_demuxer_select="rtpdec"
1940 smoothstreaming_muxer_select="ismv_muxer"
1941 spdif_muxer_select="aac_parser"
1942 tak_demuxer_select="tak_parser"
1943 tg2_muxer_select="mov_muxer"
1944 tgp_muxer_select="mov_muxer"
1945 w64_demuxer_select="wav_demuxer"
1946 wav_demuxer_select="riffdec"
1947 wav_muxer_select="riffenc"
1948 webm_muxer_select="riffenc"
1949 wtv_demuxer_select="riffdec"
1950 xmv_demuxer_select="riffdec"
1951 xwma_demuxer_select="riffdec"
1952
1953 # indevs / outdevs
1954 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1955 alsa_outdev_deps="alsa_asoundlib_h"
1956 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1957 dv1394_indev_deps="dv1394"
1958 dv1394_indev_select="dv_demuxer"
1959 fbdev_indev_deps="linux_fb_h"
1960 jack_indev_deps="jack_jack_h pthreads"
1961 libcdio_indev_deps="libcdio"
1962 libdc1394_indev_deps="libdc1394"
1963 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1964 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1965 pulse_indev_deps="libpulse"
1966 sndio_indev_deps="sndio_h"
1967 sndio_outdev_deps="sndio_h"
1968 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1969 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1970 vfwcap_indev_extralibs="-lavicap32"
1971 x11grab_indev_deps="x11grab XShmCreateImage"
1972
1973 # protocols
1974 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1975 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1976 ffrtmpcrypt_protocol_select="tcp_protocol"
1977 ffrtmphttp_protocol_deps="!librtmp_protocol"
1978 ffrtmphttp_protocol_select="http_protocol"
1979 gopher_protocol_select="network"
1980 httpproxy_protocol_select="tcp_protocol"
1981 http_protocol_select="tcp_protocol"
1982 https_protocol_select="tls_protocol"
1983 librtmp_protocol_deps="librtmp"
1984 librtmpe_protocol_deps="librtmp"
1985 librtmps_protocol_deps="librtmp"
1986 librtmpt_protocol_deps="librtmp"
1987 librtmpte_protocol_deps="librtmp"
1988 mmsh_protocol_select="http_protocol"
1989 mmst_protocol_select="network"
1990 rtmp_protocol_deps="!librtmp_protocol"
1991 rtmp_protocol_select="tcp_protocol"
1992 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1993 rtmps_protocol_deps="!librtmp_protocol"
1994 rtmps_protocol_select="tls_protocol"
1995 rtmpt_protocol_select="ffrtmphttp_protocol"
1996 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1997 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1998 rtp_protocol_select="udp_protocol"
1999 sctp_protocol_deps="struct_sctp_event_subscribe"
2000 sctp_protocol_select="network"
2001 srtp_protocol_select="rtp_protocol"
2002 tcp_protocol_select="network"
2003 tls_protocol_deps_any="openssl gnutls"
2004 tls_protocol_select="tcp_protocol"
2005 udp_protocol_select="network"
2006 unix_protocol_deps="sys_un_h"
2007 unix_protocol_select="network"
2008
2009 # filters
2010 blackframe_filter_deps="gpl"
2011 boxblur_filter_deps="gpl"
2012 cropdetect_filter_deps="gpl"
2013 delogo_filter_deps="gpl"
2014 drawtext_filter_deps="libfreetype"
2015 frei0r_filter_deps="frei0r dlopen strtok_r"
2016 frei0r_filter_extralibs='$ldl'
2017 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2018 frei0r_src_filter_extralibs='$ldl'
2019 hqdn3d_filter_deps="gpl"
2020 interlace_filter_deps="gpl"
2021 resample_filter_deps="avresample"
2022 ocv_filter_deps="libopencv"
2023 scale_filter_deps="swscale"
2024
2025 # examples
2026 avcodec_example_deps="avcodec avutil"
2027 metadata_example_deps="avformat avutil"
2028 output_example_deps="avcodec avformat avutil swscale"
2029 transcode_aac_example_deps="avcodec avformat avresample"
2030
2031 # libraries
2032 avcodec_deps="avutil"
2033 avdevice_deps="avutil avcodec avformat"
2034 avfilter_deps="avutil"
2035 avformat_deps="avutil avcodec"
2036 avresample_deps="avutil"
2037 swscale_deps="avutil"
2038
2039 # programs
2040 avconv_deps="avcodec avfilter avformat avresample swscale"
2041 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2042 fps_filter null_filter resample_filter scale_filter
2043 setpts_filter trim_filter"
2044 avplay_deps="avcodec avformat avresample swscale sdl"
2045 avplay_libs='$sdl_libs'
2046 avplay_select="rdft"
2047 avprobe_deps="avcodec avformat"
2048 avserver_deps="avformat fork !shared"
2049 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2050
2051 # documentation
2052 pod2man_deps="doc"
2053 texi2html_deps="doc"
2054
2055 # default parameters
2056
2057 logfile="config.log"
2058
2059 # installation paths
2060 prefix_default="/usr/local"
2061 bindir_default='${prefix}/bin'
2062 datadir_default='${prefix}/share/avconv'
2063 docdir_default='${prefix}/share/doc/libav'
2064 incdir_default='${prefix}/include'
2065 libdir_default='${prefix}/lib'
2066 mandir_default='${prefix}/share/man'
2067 shlibdir_default="$libdir_default"
2068
2069 # toolchain
2070 ar_default="ar"
2071 cc_default="gcc"
2072 host_cc_default="gcc"
2073 cp_f="cp -f"
2074 ln_s="ln -s -f"
2075 nm_default="nm -g"
2076 objformat="elf"
2077 pkg_config_default=pkg-config
2078 ranlib="ranlib"
2079 strip="strip"
2080 yasmexe="yasm"
2081
2082 nogas=":"
2083
2084 # machine
2085 arch_default=$(uname -m)
2086 cpu="generic"
2087
2088 # OS
2089 target_os_default=$(tolower $(uname -s))
2090 host_os=$target_os_default
2091
2092 # configurable options
2093 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2094
2095 enable asm
2096 enable debug
2097 enable doc
2098 enable optimizations
2099 enable safe_bitstream_reader
2100 enable static
2101 enable swscale_alpha
2102
2103 # By default, enable only those hwaccels that have no external dependencies.
2104 enable dxva2 vdpau
2105
2106 # build settings
2107 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2108 LIBPREF="lib"
2109 LIBSUF=".a"
2110 FULLNAME='$(NAME)$(BUILDSUF)'
2111 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2112 SLIBPREF="lib"
2113 SLIBSUF=".so"
2114 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2115 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2116 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2117 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2118 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2119 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2120
2121 asflags_filter=echo
2122 cflags_filter=echo
2123 ldflags_filter=echo
2124
2125 AS_C='-c'
2126 AS_O='-o $@'
2127 CC_C='-c'
2128 CC_E='-E -o $@'
2129 CC_O='-o $@'
2130 LD_O='-o $@'
2131 LD_LIB='-l%'
2132 LD_PATH='-L'
2133 HOSTCC_C='-c'
2134 HOSTCC_E='-E -o $@'
2135 HOSTCC_O='-o $@'
2136 HOSTLD_O='-o $@'
2137
2138 host_libs='-lm'
2139 host_cflags_filter=echo
2140 host_ldflags_filter=echo
2141
2142 target_path='$(CURDIR)'
2143
2144 # since the object filename is not given with the -MM flag, the compiler
2145 # is only able to print the basename, and we must add the path ourselves
2146 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2147 DEPFLAGS='-MM'
2148
2149 # find source path
2150 if test -f configure; then
2151 source_path=.
2152 else
2153 source_path=$(cd $(dirname "$0"); pwd)
2154 echo "$source_path" | grep -q '[[:blank:]]' &&
2155 die "Out of tree builds are impossible with whitespace in source path."
2156 test -e "$source_path/config.h" &&
2157 die "Out of tree builds are impossible with config.h in source dir."
2158 fi
2159
2160 for v in "$@"; do
2161 r=${v#*=}
2162 l=${v%"$r"}
2163 r=$(sh_quote "$r")
2164 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2165 done
2166
2167 find_things(){
2168 thing=$1
2169 pattern=$2
2170 file=$source_path/$3
2171 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2172 }
2173
2174 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2175 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2176 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2177 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2178 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2179 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2180 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2181 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2182 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2183 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2184 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2185
2186 ALL_COMPONENTS="
2187 $BSF_LIST
2188 $DECODER_LIST
2189 $DEMUXER_LIST
2190 $ENCODER_LIST
2191 $FILTER_LIST
2192 $HWACCEL_LIST
2193 $INDEV_LIST
2194 $MUXER_LIST
2195 $OUTDEV_LIST
2196 $PARSER_LIST
2197 $PROTOCOL_LIST
2198 "
2199
2200 for n in $COMPONENT_LIST; do
2201 v=$(toupper ${n%s})_LIST
2202 eval enable \$$v
2203 eval ${n}_if_any="\$$v"
2204 done
2205
2206 enable $ARCH_EXT_LIST
2207
2208 die_unknown(){
2209 echo "Unknown option \"$1\"."
2210 echo "See $0 --help for available options."
2211 exit 1
2212 }
2213
2214 print_3_columns() {
2215 cat | tr ' ' '\n' | sort | pr -r -3 -t
2216 }
2217
2218 show_list() {
2219 suffix=_$1
2220 shift
2221 echo $* | sed s/$suffix//g | print_3_columns
2222 exit 0
2223 }
2224
2225 rand_list(){
2226 IFS=', '
2227 set -- $*
2228 unset IFS
2229 for thing; do
2230 comp=${thing%:*}
2231 prob=${thing#$comp}
2232 prob=${prob#:}
2233 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2234 echo "prob ${prob:-0.5}"
2235 printf '%s\n' $comp
2236 done
2237 }
2238
2239 do_random(){
2240 action=$1
2241 shift
2242 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2243 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2244 }
2245
2246 for opt do
2247 optval="${opt#*=}"
2248 case "$opt" in
2249 --extra-ldflags=*)
2250 add_ldflags $optval
2251 ;;
2252 --extra-libs=*)
2253 add_extralibs $optval
2254 ;;
2255 --disable-devices)
2256 disable $INDEV_LIST $OUTDEV_LIST
2257 ;;
2258 --enable-debug=*)
2259 debuglevel="$optval"
2260 ;;
2261 --disable-programs)
2262 disable $PROGRAM_LIST
2263 ;;
2264 --disable-everything)
2265 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2266 ;;
2267 --disable-all)
2268 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2269 disable $LIBRARY_LIST $PROGRAM_LIST doc
2270 ;;
2271 --enable-random|--disable-random)
2272 action=${opt%%-random}
2273 do_random ${action#--} $COMPONENT_LIST
2274 ;;
2275 --enable-random=*|--disable-random=*)
2276 action=${opt%%-random=*}
2277 do_random ${action#--} $optval
2278 ;;
2279 --enable-*=*|--disable-*=*)
2280 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2281 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2282 eval list=\$$(toupper $thing)_LIST
2283 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2284 $action $(filter "$name" $list)
2285 ;;
2286 --enable-?*|--disable-?*)
2287 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2288 if is_in $option $COMPONENT_LIST; then
2289 test $action = disable && action=unset
2290 eval $action \$$(toupper ${option%s})_LIST
2291 elif is_in $option $CMDLINE_SELECT; then
2292 $action $option
2293 else
2294 die_unknown $opt
2295 fi
2296 ;;
2297 --list-*)
2298 NAME="${opt#--list-}"
2299 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2300 NAME=${NAME%s}
2301 eval show_list $NAME \$$(toupper $NAME)_LIST
2302 ;;
2303 --help|-h) show_help
2304 ;;
2305 *)
2306 optname="${opt%%=*}"
2307 optname="${optname#--}"
2308 optname=$(echo "$optname" | sed 's/-/_/g')
2309 if is_in $optname $CMDLINE_SET; then
2310 eval $optname='$optval'
2311 elif is_in $optname $CMDLINE_APPEND; then
2312 append $optname "$optval"
2313 else
2314 die_unknown $opt
2315 fi
2316 ;;
2317 esac
2318 done
2319
2320 disabled logging && logfile=/dev/null
2321
2322 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2323 set >> $logfile
2324
2325 test -n "$cross_prefix" && enable cross_compile
2326
2327 if enabled cross_compile; then
2328 test -n "$arch" && test -n "$target_os" ||
2329 die "Must specify target arch and OS when cross-compiling"
2330 fi
2331
2332 ar_default="${cross_prefix}${ar_default}"
2333 cc_default="${cross_prefix}${cc_default}"
2334 nm_default="${cross_prefix}${nm_default}"
2335 pkg_config_default="${cross_prefix}${pkg_config_default}"
2336 ranlib="${cross_prefix}${ranlib}"
2337 strip="${cross_prefix}${strip}"
2338
2339 sysinclude_default="${sysroot}/usr/include"
2340
2341 case "$toolchain" in
2342 clang-asan)
2343 cc_default="clang"
2344 add_cflags -fsanitize=address
2345 add_ldflags -fsanitize=address
2346 ;;
2347 clang-tsan)
2348 cc_default="clang"
2349 add_cflags -fsanitize=thread -pie
2350 add_ldflags -fsanitize=thread -pie
2351 ;;
2352 gcc-asan)
2353 cc_default="gcc"
2354 add_cflags -fsanitize=address
2355 add_ldflags -fsanitize=address
2356 ;;
2357 gcc-tsan)
2358 cc_default="gcc"
2359 add_cflags -fsanitize=thread -pie -fPIC
2360 add_ldflags -fsanitize=thread -pie -fPIC
2361 ;;
2362 valgrind-massif)
2363 target_exec_default="valgrind"
2364 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2365 ;;
2366 valgrind-memcheck)
2367 target_exec_default="valgrind"
2368 target_exec_args="--track-origins=yes --leak-check=full"
2369 ;;
2370 msvc)
2371 # Check whether the current MSVC version needs the C99 converter.
2372 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2373 # support enough of C99 to build libav. Default to the new
2374 # behaviour if the regexp was unable to match anything, since this
2375 # successfully parses the version number of existing supported
2376 # versions that require the converter (MSVC 2010 and 2012).
2377 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2378 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2379 cc_default="cl"
2380 else
2381 cc_default="c99wrap cl"
2382 fi
2383 ld_default="link"
2384 nm_default="dumpbin -symbols"
2385 ar_default="lib"
2386 target_os_default="win32"
2387 # Use a relative path for TMPDIR. This makes sure all the
2388 # ffconf temp files are written with a relative path, avoiding
2389 # issues with msys/win32 path conversion for MSVC parameters
2390 # such as -Fo<file> or -out:<file>.
2391 TMPDIR=.
2392 ;;
2393 icl)
2394 cc_default="icl"
2395 ld_default="xilink"
2396 nm_default="dumpbin -symbols"
2397 ar_default="xilib"
2398 target_os_default="win32"
2399 TMPDIR=.
2400 ;;
2401 gcov)
2402 add_cflags -fprofile-arcs -ftest-coverage
2403 add_ldflags -fprofile-arcs -ftest-coverage
2404 ;;
2405 hardened)
2406 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2407 add_ldflags -Wl,-z,relro -Wl,-z,now
2408 ;;
2409 ?*)
2410 die "Unknown toolchain $toolchain"
2411 ;;
2412 esac
2413
2414 set_default arch cc pkg_config sysinclude target_exec target_os
2415 enabled cross_compile || host_cc_default=$cc
2416 set_default host_cc
2417
2418 if ! $pkg_config --version >/dev/null 2>&1; then
2419 warn "$pkg_config not found, library detection may fail."
2420 pkg_config=false
2421 fi
2422
2423 exesuf() {
2424 case $1 in
2425 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2426 esac
2427 }
2428
2429 EXESUF=$(exesuf $target_os)
2430 HOSTEXESUF=$(exesuf $host_os)
2431
2432 # set temporary file name
2433 : ${TMPDIR:=$TEMPDIR}
2434 : ${TMPDIR:=$TMP}
2435 : ${TMPDIR:=/tmp}
2436
2437 if ! check_cmd mktemp -u XXXXXX; then
2438 # simple replacement for missing mktemp
2439 # NOT SAFE FOR GENERAL USE
2440 mktemp(){
2441 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2442 }
2443 fi
2444
2445 tmpfile(){
2446 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2447 (set -C; exec > $tmp) 2>/dev/null ||
2448 die "Unable to create temporary file in $TMPDIR."
2449 append TMPFILES $tmp
2450 eval $1=$tmp
2451 }
2452
2453 trap 'rm -f -- $TMPFILES' EXIT
2454
2455 tmpfile TMPASM .asm
2456 tmpfile TMPC .c
2457 tmpfile TMPE $EXESUF
2458 tmpfile TMPH .h
2459 tmpfile TMPO .o
2460 tmpfile TMPS .S
2461 tmpfile TMPSH .sh
2462 tmpfile TMPV .ver
2463
2464 unset -f mktemp
2465
2466 chmod +x $TMPE
2467
2468 # make sure we can execute files in $TMPDIR
2469 cat > $TMPSH 2>> $logfile <<EOF
2470 #! /bin/sh
2471 EOF
2472 chmod +x $TMPSH >> $logfile 2>&1
2473 if ! $TMPSH >> $logfile 2>&1; then
2474 cat <<EOF
2475 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2476 variable to another directory and make sure that it is not mounted noexec.
2477 EOF
2478 die "Sanity test failed."
2479 fi
2480
2481 ccc_flags(){
2482 for flag; do
2483 case $flag in
2484 -std=c99) echo -c99 ;;
2485 -mcpu=*) echo -arch ${flag#*=} ;;
2486 -mieee) echo -ieee ;;
2487 -O*|-fast) echo $flag ;;
2488 -fno-math-errno) echo -assume nomath_errno ;;
2489 -g) echo -g3 ;;
2490 -Wall) echo -msg_enable level2 ;;
2491 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2492 -Wl,*) echo $flag ;;
2493 -f*|-W*) ;;
2494 *) echo $flag ;;
2495 esac
2496 done
2497 }
2498
2499 cparser_flags(){
2500 for flag; do
2501 case $flag in
2502 -Wno-switch) echo -Wno-switch-enum ;;
2503 -Wno-format-zero-length) ;;
2504 -Wdisabled-optimization) ;;
2505 -Wno-pointer-sign) echo -Wno-other ;;
2506 *) echo $flag ;;
2507 esac
2508 done
2509 }
2510
2511 msvc_common_flags(){
2512 for flag; do
2513 case $flag in
2514 # In addition to specifying certain flags under the compiler
2515 # specific filters, they must be specified here as well or else the
2516 # generic catch all at the bottom will print the original flag.
2517 -Wall) ;;
2518 -std=c99) ;;
2519 # Common flags
2520 -fomit-frame-pointer) ;;
2521 -g) echo -Z7 ;;
2522 -fno-math-errno) ;;
2523 -fno-common) ;;
2524 -fno-signed-zeros) ;;
2525 -fPIC) ;;
2526 -mthumb) ;;
2527 -march=*) ;;
2528 -lz) echo zlib.lib ;;
2529 -lavifil32) echo vfw32.lib ;;
2530 -lavicap32) echo vfw32.lib user32.lib ;;
2531 -l*) echo ${flag#-l}.lib ;;
2532 *) echo $flag ;;
2533 esac
2534 done
2535 }
2536
2537 msvc_flags(){
2538 msvc_common_flags "$@"
2539 for flag; do
2540 case $flag in
2541 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2542 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2543 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2544 -wd4273 ;;
2545 esac
2546 done
2547 }
2548
2549 icl_flags(){
2550 msvc_common_flags "$@"
2551 for flag; do
2552 case $flag in
2553 # Despite what Intel's documentation says -Wall, which is supported
2554 # on Windows, does enable remarks so disable them here.
2555 -Wall) echo $flag -Qdiag-disable:remark ;;
2556 -std=c99) echo -Qstd=c99 ;;
2557 esac
2558 done
2559 }
2560
2561 pgi_flags(){
2562 for flag; do
2563 case $flag in
2564 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2565 -fomit-frame-pointer) echo -Mnoframe ;;
2566 -g) echo -gopt ;;
2567 *) echo $flag ;;
2568 esac
2569 done
2570 }
2571
2572 suncc_flags(){
2573 for flag; do
2574 case $flag in
2575 -march=*|-mcpu=*)
2576 case "${flag#*=}" in
2577 native) echo -xtarget=native ;;
2578 v9|niagara) echo -xarch=sparc ;;
2579 ultrasparc) echo -xarch=sparcvis ;;
2580 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2581 i586|pentium) echo -xchip=pentium ;;
2582 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2583 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2584 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2585 pentium4*) echo -xtarget=pentium4 ;;
2586 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2587 *-sse3) echo -xarch=sse3 ;;
2588 core2) echo -xarch=ssse3 -xchip=core2 ;;
2589 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2590 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2591 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2592 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2593 k8|opteron|athlon64|athlon-fx)
2594 echo -xarch=sse2a ;;
2595 athlon*) echo -xarch=pentium_proa ;;
2596 esac
2597 ;;
2598 -std=c99) echo -xc99 ;;
2599 -fomit-frame-pointer) echo -xregs=frameptr ;;
2600 -fPIC) echo -KPIC -xcode=pic32 ;;
2601 -W*,*) echo $flag ;;
2602 -f*-*|-W*|-mimpure-text) ;;
2603 -shared) echo -G ;;
2604 *) echo $flag ;;
2605 esac
2606 done
2607 }
2608
2609 tms470_flags(){
2610 for flag; do
2611 case $flag in
2612 -march=*|-mcpu=*)
2613 case "${flag#*=}" in
2614 armv7-a|cortex-a*) echo -mv=7a8 ;;
2615 armv7-r|cortex-r*) echo -mv=7r4 ;;
2616 armv7-m|cortex-m*) echo -mv=7m3 ;;
2617 armv6*|arm11*) echo -mv=6 ;;
2618 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2619 echo -mv=5e ;;
2620 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2621 esac
2622 ;;
2623 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2624 -mfpu=vfp) echo --float_support=vfpv2 ;;
2625 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2626 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2627 -msoft-float) echo --float_support=vfplib ;;
2628 -O[0-3]|-mf=*) echo $flag ;;
2629 -g) echo -g -mn ;;
2630 -pds=*) echo $flag ;;
2631 -D*|-I*) echo $flag ;;
2632 --gcc|--abi=*) echo $flag ;;
2633 -me) echo $flag ;;
2634 esac
2635 done
2636 }
2637
2638 probe_cc(){
2639 pfx=$1
2640 _cc=$2
2641
2642 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2643 unset _ld_o _ldflags _ld_lib _ld_path
2644 unset _depflags _DEPCMD _DEPFLAGS
2645 _flags_filter=echo
2646
2647 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2648 _type=llvm_gcc
2649 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2650 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2651 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2652 _cflags_speed='-O3'
2653 _cflags_size='-Os'
2654 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2655 _type=gcc
2656 gcc_version=$($_cc --version | head -n1)
2657 gcc_basever=$($_cc -dumpversion)
2658 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2659 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2660 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2661 if ! $_cc -dumpversion | grep -q '^2\.'; then
2662 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2663 fi
2664 _cflags_speed='-O3'
2665 _cflags_size='-Os'
2666 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2667 _type=icc
2668 _ident=$($_cc --version | head -n1)
2669 _depflags='-MMD'
2670 _cflags_speed='-O3'
2671 _cflags_size='-Os'
2672 _cflags_noopt='-O1'
2673 elif $_cc -v 2>&1 | grep -q xlc; then
2674 _type=xlc
2675 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2676 _cflags_speed='-O5'
2677 _cflags_size='-O5 -qcompact'
2678 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2679 _type=ccc
2680 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2681 _DEPFLAGS='-M'
2682 _cflags_speed='-fast'
2683 _cflags_size='-O1'
2684 _flags_filter=ccc_flags
2685 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2686 test -d "$sysroot" || die "No valid sysroot specified."
2687 _type=armcc
2688 _ident=$($_cc --vsn | head -n1)
2689 armcc_conf="$PWD/armcc.conf"
2690 $_cc --arm_linux_configure \
2691 --arm_linux_config_file="$armcc_conf" \
2692 --configure_sysroot="$sysroot" \
2693 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2694 die "Error creating armcc configuration file."
2695 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2696 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2697 as_default="${cross_prefix}gcc"
2698 _depflags='-MMD'
2699 _cflags_speed='-O3'
2700 _cflags_size='-Os'
2701 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2702 _type=tms470
2703 _ident=$($_cc -version | head -n1 | tr -s ' ')
2704 _flags='--gcc --abi=eabi -me'
2705 _cc_e='-ppl -fe=$@'
2706 _cc_o='-fe=$@'
2707 _depflags='-ppa -ppd=$(@:.o=.d)'
2708 _cflags_speed='-O3 -mf=5'
2709 _cflags_size='-O3 -mf=2'
2710 _flags_filter=tms470_flags
2711 elif $_cc -v 2>&1 | grep -q clang; then
2712 _type=clang
2713 _ident=$($_cc --version | head -n1)
2714 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2715 _cflags_speed='-O3'
2716 _cflags_size='-Os'
2717 elif $_cc -V 2>&1 | grep -q Sun; then
2718 _type=suncc
2719 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2720 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2721 _DEPFLAGS='-xM1 -xc99'
2722 _ldflags='-std=c99'
2723 _cflags_speed='-O5'
2724 _cflags_size='-O5 -xspace'
2725 _flags_filter=suncc_flags
2726 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2727 _type=pathscale
2728 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2729 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2730 _cflags_speed='-O2'
2731 _cflags_size='-Os'
2732 _flags_filter='filter_out -Wdisabled-optimization'
2733 elif $_cc -v 2>&1 | grep -q Open64; then
2734 _type=open64
2735 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2736 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2737 _cflags_speed='-O2'
2738 _cflags_size='-Os'
2739 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2740 elif $_cc -V 2>&1 | grep -q Portland; then
2741 _type=pgi
2742 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2743 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2744 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2745 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2746 _cflags_noopt="-O1"
2747 _flags_filter=pgi_flags
2748 elif $_cc 2>&1 | grep -q Microsoft; then
2749 _type=msvc
2750 _ident=$($cc 2>&1 | head -n1)
2751 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2752 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2753 _cflags_speed="-O2"
2754 _cflags_size="-O1"
2755 if $_cc 2>&1 | grep -q Linker; then
2756 _ld_o='-out:$@'
2757 else
2758 _ld_o='-Fe$@'
2759 fi
2760 _cc_o='-Fo$@'
2761 _cc_e='-P -Fi$@'
2762 _flags_filter=msvc_flags
2763 _ld_lib='lib%.a'
2764 _ld_path='-libpath:'
2765 _flags='-nologo'
2766 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2767 if [ $pfx = hostcc ]; then
2768 append _cflags -Dsnprintf=_snprintf
2769 fi
2770 elif $_cc 2>&1 | grep -q Intel; then
2771 _type=icl
2772 _ident=$($cc 2>&1 | head -n1)
2773 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2774 # Not only is O3 broken on 13.x+ but it is slower on all previous
2775 # versions (tested) as well.
2776 _cflags_speed="-O2"
2777 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2778 if $_cc 2>&1 | grep -q Linker; then
2779 _ld_o='-out:$@'
2780 else
2781 _ld_o='-Fe$@'
2782 fi
2783 _cc_o='-Fo$@'
2784 _cc_e='-P'
2785 _flags_filter=icl_flags
2786 _ld_lib='lib%.a'
2787 _ld_path='-libpath:'
2788 # -Qdiag-error to make icl error when seeing certain unknown arguments
2789 _flags='-nologo -Qdiag-error:4044,10157'
2790 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2791 # with MSVC which enables it by default.
2792 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2793 if [ $pfx = hostcc ]; then
2794 append _cflags -Dsnprintf=_snprintf
2795 fi
2796 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2797 _type=cparser
2798 _ident=$($_cc --version | head -n1)
2799 _depflags='-MMD'
2800 _cflags_speed='-O4'
2801 _cflags_size='-O2'
2802 _flags_filter=cparser_flags
2803 fi
2804
2805 eval ${pfx}_type=\$_type
2806 eval ${pfx}_ident=\$_ident
2807 }
2808
2809 set_ccvars(){
2810 eval ${1}_C=\${_cc_c-\${${1}_C}}
2811 eval ${1}_E=\${_cc_e-\${${1}_E}}
2812 eval ${1}_O=\${_cc_o-\${${1}_O}}
2813
2814 if [ -n "$_depflags" ]; then
2815 eval ${1}_DEPFLAGS=\$_depflags
2816 else
2817 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2818 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2819 eval DEP${1}FLAGS=\$_flags
2820 fi
2821 }
2822
2823 probe_cc cc "$cc"
2824 cflags_filter=$_flags_filter
2825 cflags_speed=$_cflags_speed
2826 cflags_size=$_cflags_size
2827 cflags_noopt=$_cflags_noopt
2828 add_cflags $_flags $_cflags
2829 cc_ldflags=$_ldflags
2830 set_ccvars CC
2831
2832 probe_cc hostcc "$host_cc"
2833 host_cflags_filter=$_flags_filter
2834 add_host_cflags $_flags $_cflags
2835 set_ccvars HOSTCC
2836
2837 test -n "$cc_type" && enable $cc_type ||
2838 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2839
2840 : ${as_default:=$cc}
2841 : ${dep_cc_default:=$cc}
2842 : ${ld_default:=$cc}
2843 : ${host_ld_default:=$host_cc}
2844 set_default ar as dep_cc ld host_ld
2845
2846 probe_cc as "$as"
2847 asflags_filter=$_flags_filter
2848 add_asflags $_flags $_cflags
2849 set_ccvars AS
2850
2851 probe_cc ld "$ld"
2852 ldflags_filter=$_flags_filter
2853 add_ldflags $_flags $_ldflags
2854 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2855 LD_O=${_ld_o-$LD_O}
2856 LD_LIB=${_ld_lib-$LD_LIB}
2857 LD_PATH=${_ld_path-$LD_PATH}
2858
2859 probe_cc hostld "$host_ld"
2860 host_ldflags_filter=$_flags_filter
2861 add_host_ldflags $_flags $_ldflags
2862 HOSTLD_O=${_ld_o-$HOSTLD_O}
2863
2864 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2865 probe_cc depcc "$dep_cc"
2866 CCDEP=${_DEPCMD:-$DEPCMD}
2867 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2868 DEPCCFLAGS=$_flags
2869 fi
2870
2871 if $ar 2>&1 | grep -q Microsoft; then
2872 arflags="-nologo"
2873 ar_o='-out:$@'
2874 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2875 arflags="rq"
2876 ar_o='$@'
2877 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2878 arflags='-Xany -r -c'
2879 ar_o='$@'
2880 else
2881 arflags="rc"
2882 ar_o='$@'
2883 fi
2884
2885 add_cflags $extra_cflags
2886 add_asflags $extra_cflags
2887
2888 if test -n "$sysroot"; then
2889 case "$cc_type" in
2890 gcc|llvm_gcc|clang)
2891 add_cppflags --sysroot="$sysroot"
2892 add_ldflags --sysroot="$sysroot"
2893 ;;
2894 tms470)
2895 add_cppflags -I"$sysinclude"
2896 add_ldflags --sysroot="$sysroot"
2897 ;;
2898 esac
2899 fi
2900
2901 if test "$cpu" = host; then
2902 enabled cross_compile &&
2903 die "--cpu=host makes no sense when cross-compiling."
2904
2905 case "$cc_type" in
2906 gcc|llvm_gcc)
2907 check_native(){
2908 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2909 sed -n "/cc1.*$1=/{
2910 s/.*$1=\\([^ ]*\\).*/\\1/
2911 p
2912 q
2913 }" $TMPE
2914 }
2915 cpu=$(check_native -march || check_native -mcpu)
2916 ;;
2917 esac
2918
2919 test "${cpu:-host}" = host &&
2920 die "--cpu=host not supported with compiler $cc"
2921 fi
2922
2923 # Deal with common $arch aliases
2924 case "$arch" in
2925 aarch64|arm64)
2926 arch="aarch64"
2927 ;;
2928 arm*)
2929 arch="arm"
2930 ;;
2931 mips*|IP*)
2932 arch="mips"
2933 ;;
2934 parisc*|hppa*)
2935 arch="parisc"
2936 ;;
2937 "Power Macintosh"|ppc*|powerpc*)
2938 arch="ppc"
2939 ;;
2940 s390|s390x)
2941 arch="s390"
2942 ;;
2943 sh4|sh)
2944 arch="sh4"
2945 ;;
2946 sun4u|sparc*)
2947 arch="sparc"
2948 ;;
2949 tilegx|tile-gx)
2950 arch="tilegx"
2951 ;;
2952 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2953 arch="x86"
2954 ;;
2955 esac
2956
2957 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2958 enable $arch
2959
2960 # Add processor-specific flags
2961 if enabled aarch64; then
2962
2963 case $cpu in
2964 armv*)
2965 cpuflags="-march=$cpu"
2966 ;;
2967 *)
2968 cpuflags="-mcpu=$cpu"
2969 ;;
2970 esac
2971
2972 elif enabled alpha; then
2973
2974 cpuflags="-mcpu=$cpu"
2975
2976 elif enabled arm; then
2977
2978 check_arm_arch() {
2979 check_cpp_condition stddef.h \
2980 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2981 $cpuflags
2982 }
2983
2984 probe_arm_arch() {
2985 if check_arm_arch 4; then echo armv4;
2986 elif check_arm_arch 4T; then echo armv4t;
2987 elif check_arm_arch 5; then echo armv5;
2988 elif check_arm_arch 5E; then echo armv5e;
2989 elif check_arm_arch 5T; then echo armv5t;
2990 elif check_arm_arch 5TE; then echo armv5te;
2991 elif check_arm_arch 5TEJ; then echo armv5te;
2992 elif check_arm_arch 6; then echo armv6;
2993 elif check_arm_arch 6J; then echo armv6j;
2994 elif check_arm_arch 6K; then echo armv6k;
2995 elif check_arm_arch 6Z; then echo armv6z;
2996 elif check_arm_arch 6ZK; then echo armv6zk;
2997 elif check_arm_arch 6T2; then echo armv6t2;
2998 elif check_arm_arch 7; then echo armv7;
2999 elif check_arm_arch 7A 7_A; then echo armv7-a;
3000 elif check_arm_arch 7R 7_R; then echo armv7-r;
3001 elif check_arm_arch 7M 7_M; then echo armv7-m;
3002 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3003 elif check_arm_arch 8A 8_A; then echo armv8-a;
3004 fi
3005 }
3006
3007 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3008
3009 case $cpu in
3010 armv*)
3011 cpuflags="-march=$cpu"
3012 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3013 ;;
3014 *)
3015 cpuflags="-mcpu=$cpu"
3016 case $cpu in
3017 cortex-a*) subarch=armv7a ;;
3018 cortex-r*) subarch=armv7r ;;
3019 cortex-m*) enable thumb; subarch=armv7m ;;
3020 arm11*) subarch=armv6 ;;
3021 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3022 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3023 *) subarch=$(probe_arm_arch) ;;
3024 esac
3025 ;;
3026 esac
3027
3028 case "$subarch" in
3029 armv5t*) enable fast_clz ;;
3030 armv[6-8]*) enable fast_clz fast_unaligned ;;
3031 esac
3032
3033 elif enabled avr32; then
3034
3035 case $cpu in
3036 ap7[02]0[0-2])
3037 subarch="avr32_ap"
3038 cpuflags="-mpart=$cpu"
3039 ;;
3040 ap)
3041 subarch="avr32_ap"
3042 cpuflags="-march=$cpu"
3043 ;;
3044 uc3[ab]*)
3045 subarch="avr32_uc"
3046 cpuflags="-mcpu=$cpu"
3047 ;;
3048 uc)
3049 subarch="avr32_uc"
3050 cpuflags="-march=$cpu"
3051 ;;
3052 esac
3053
3054 elif enabled bfin; then
3055
3056 cpuflags="-mcpu=$cpu"
3057
3058 elif enabled mips; then
3059
3060 cpuflags="-march=$cpu"
3061
3062 elif enabled ppc; then
3063
3064 case $(tolower $cpu) in
3065 601|ppc601|powerpc601)
3066 cpuflags="-mcpu=601"
3067 disable altivec
3068 ;;
3069 603*|ppc603*|powerpc603*)
3070 cpuflags="-mcpu=603"
3071 disable altivec
3072 ;;
3073 604*|ppc604*|powerpc604*)
3074 cpuflags="-mcpu=604"
3075 disable altivec
3076 ;;
3077 g3|75*|ppc75*|powerpc75*)
3078 cpuflags="-mcpu=750"
3079 disable altivec
3080 ;;
3081 g4|745*|ppc745*|powerpc745*)
3082 cpuflags="-mcpu=7450"
3083 ;;
3084 74*|ppc74*|powerpc74*)
3085 cpuflags="-mcpu=7400"
3086 ;;
3087 g5|970|ppc970|powerpc970)
3088 cpuflags="-mcpu=970"
3089 ;;
3090 power[3-7]*)
3091 cpuflags="-mcpu=$cpu"
3092 ;;
3093 cell)
3094 cpuflags="-mcpu=cell"
3095 enable ldbrx
3096 ;;
3097 e500mc)
3098 cpuflags="-mcpu=e500mc"
3099 disable altivec
3100 ;;
3101 e500v2)
3102 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3103 disable altivec
3104 ;;
3105 e500)
3106 cpuflags="-mcpu=8540 -mhard-float"
3107 disable altivec
3108 ;;
3109 esac
3110
3111 elif enabled sparc; then
3112
3113 case $cpu in
3114 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3115 cpuflags="-mcpu=$cpu"
3116 disable vis
3117 ;;
3118 ultrasparc*|niagara[234])
3119 cpuflags="-mcpu=$cpu"
3120 ;;
3121 esac
3122
3123 elif enabled x86; then
3124
3125 case $cpu in
3126 i[345]86|pentium)
3127 cpuflags="-march=$cpu"
3128 disable mmx
3129 ;;
3130 # targets that do NOT support nopl and conditional mov (cmov)
3131 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3132 cpuflags="-march=$cpu"
3133 disable i686
3134 ;;
3135 # targets that do support nopl and conditional mov (cmov)
3136 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3137 cpuflags="-march=$cpu"
3138 enable i686
3139 enable fast_cmov
3140 ;;
3141 # targets that do support conditional mov but on which it's slow
3142 pentium4|pentium4m|prescott|nocona)
3143 cpuflags="-march=$cpu"
3144 enable i686
3145 disable fast_cmov
3146 ;;
3147 esac
3148
3149 fi
3150
3151 if [ "$cpu" != generic ]; then
3152 add_cflags $cpuflags
3153 add_asflags $cpuflags
3154 fi
3155
3156 # compiler sanity check
3157 check_exec <<EOF
3158 int main(void){ return 0; }
3159 EOF
3160 if test "$?" != 0; then
3161 echo "$cc is unable to create an executable file."
3162 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3163 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3164 echo "Only do this if you know what cross compiling means."
3165 fi
3166 die "C compiler test failed."
3167 fi
3168
3169 add_cppflags -D_ISOC99_SOURCE
3170 check_cflags -std=c99
3171 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3172 #include <stdlib.h>
3173 EOF
3174 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3175 #include <stdlib.h>
3176 EOF
3177
3178 add_host_cppflags -D_ISOC99_SOURCE
3179 check_host_cflags -std=c99
3180 check_host_cflags -Wall
3181 check_host_cflags -O3
3182
3183 check_64bit(){
3184 arch32=$1
3185 arch64=$2
3186 expr=$3
3187 check_code cc "" "int test[2*($expr) - 1]" &&
3188 subarch=$arch64 || subarch=$arch32
3189 }
3190
3191 case "$arch" in
3192 aarch64|alpha|ia64)
3193 spic=$shared
3194 ;;
3195 mips)
3196 check_64bit mips mips64 '_MIPS_SIM > 1'
3197 spic=$shared
3198 ;;
3199 parisc)
3200 check_64bit parisc parisc64 'sizeof(void *) > 4'
3201 spic=$shared
3202 ;;
3203 ppc)
3204 check_64bit ppc ppc64 'sizeof(void *) > 4'
3205 spic=$shared
3206 ;;
3207 sparc)
3208 check_64bit sparc sparc64 'sizeof(void *) > 4'
3209 spic=$shared
3210 ;;
3211 x86)
3212 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3213 if test "$subarch" = "x86_64"; then
3214 spic=$shared
3215 fi
3216 ;;
3217 esac
3218
3219 enable $subarch
3220 enabled spic && enable_weak pic
3221
3222 # OS specific
3223 case $target_os in
3224 aix)
3225 SHFLAGS=-shared
3226 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3227 enabled shared && add_ldflags -Wl,-brtl
3228 ;;
3229 haiku)
3230 prefix_default="/boot/common"
3231 network_extralibs="-lnetwork"
3232 host_libs=
3233 ;;
3234 sunos)
3235 SHFLAGS='-shared -Wl,-h,$$(@F)'
3236 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3237 network_extralibs="-lsocket -lnsl"
3238 # When using suncc to build, the Solaris linker will mark
3239 # an executable with each instruction set encountered by
3240 # the Solaris assembler. As our libraries contain their own
3241 # guards for processor-specific code, instead suppress
3242 # generation of the HWCAPS ELF section on Solaris x86 only.
3243 enabled_all suncc x86 &&
3244 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3245 add_ldflags -Wl,-M,mapfile
3246 nm_default='nm -P -g'
3247 ;;
3248 netbsd)
3249 disable symver
3250 oss_indev_extralibs="-lossaudio"
3251 oss_outdev_extralibs="-lossaudio"
3252 ;;
3253 openbsd|bitrig)
3254 disable symver
3255 SHFLAGS='-shared'
3256 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3257 SLIB_INSTALL_LINKS=
3258 oss_indev_extralibs="-lossaudio"
3259 oss_outdev_extralibs="-lossaudio"
3260 ;;
3261 dragonfly)
3262 disable symver
3263 ;;
3264 freebsd)
3265 ;;
3266 bsd/os)
3267 add_extralibs -lpoll -lgnugetopt
3268 ;;
3269 darwin)
3270 gas="gas-preprocessor.pl $cc"
3271 enabled ppc && add_asflags -force_cpusubtype_ALL
3272 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3273 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3274 add_ldflags -Wl,-dynamic,-search_paths_first
3275 SLIBSUF=".dylib"
3276 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3277 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3278 objformat="macho"
3279 enabled x86_64 && objformat="macho64"
3280 enabled_any pic shared ||
3281 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3282 ;;
3283 mingw32*)
3284 if test $target_os = "mingw32ce"; then
3285 disable network
3286 else
3287 target_os=mingw32
3288 fi
3289 LIBTARGET=i386
3290 if enabled x86_64; then
3291 LIBTARGET="i386:x86-64"
3292 elif enabled arm; then
3293 LIBTARGET=arm-wince
3294 fi
3295 check_ldflags -Wl,--nxcompat
3296 check_ldflags -Wl,--dynamicbase
3297 shlibdir_default="$bindir_default"
3298 SLIBPREF=""
3299 SLIBSUF=".dll"
3300 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3301 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3302 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3303 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3304 SLIB_INSTALL_LINKS=
3305 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3306 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3307 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3308 objformat="win32"
3309 dlltool="${cross_prefix}dlltool"
3310 ranlib=:
3311 enable dos_paths
3312 ;;
3313 win32|win64)
3314 disable symver
3315 if enabled shared; then
3316 # Link to the import library instead of the normal static library
3317 # for shared libs.
3318 LD_LIB='%.lib'
3319 # Cannot build both shared and static libs with MSVC or icl.
3320 disable static
3321 fi
3322 shlibdir_default="$bindir_default"
3323 SLIBPREF=""
3324 SLIBSUF=".dll"
3325 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3326 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3327 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3328 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3329 SLIB_INSTALL_LINKS=
3330 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3331 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3332 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3333 objformat="win32"
3334 ranlib=:
3335 enable dos_paths
3336 ;;
3337 cygwin*)
3338 target_os=cygwin
3339 shlibdir_default="$bindir_default"
3340 SLIBPREF="cyg"
3341 SLIBSUF=".dll"
3342 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3343 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3344 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3345 SLIB_INSTALL_LINKS=
3346 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3347 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3348 objformat="win32"
3349 enable dos_paths
3350 ;;
3351 *-dos|freedos|opendos)
3352 network_extralibs="-lsocket"
3353 objformat="coff"
3354 enable dos_paths
3355 add_cppflags -U__STRICT_ANSI__
3356 ;;
3357 linux)
3358 enable dv1394
3359 ;;
3360 irix*)
3361 target_os=irix
3362 ranlib="echo ignoring ranlib"
3363 ;;
3364 os/2*)
3365 ln_s="cp -f"
3366 objformat="aout"
3367 add_cppflags -D_GNU_SOURCE
3368 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3369 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3370 LIBSUF="_s.a"
3371 SLIBPREF=""
3372 SLIBSUF=".dll"
3373 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3374 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3375 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3376 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3377 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3378 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3379 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3380 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3381 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3382 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3383 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3384 enable dos_paths
3385 ;;
3386 gnu/kfreebsd)
3387 add_cppflags -D_BSD_SOURCE
3388 ;;
3389 gnu)
3390 ;;
3391 qnx)
3392 add_cppflags -D_QNX_SOURCE
3393 network_extralibs="-lsocket"
3394 ;;
3395 symbian)
3396 SLIBSUF=".dll"
3397 enable dos_paths
3398 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3399 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3400 add_ldflags -Wl,--target1-abs,--no-undefined \
3401 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3402 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3403 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3404 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3405 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3406 ;;
3407 osf1)
3408 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3409 ;;
3410 minix)
3411 ;;
3412 plan9)
3413 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3414 -D_REENTRANT_SOURCE \
3415 -D_RESEARCH_SOURCE \
3416 -DFD_SETSIZE=96 \
3417 -DHAVE_SOCK_OPTS
3418 add_compat strtod.o strtod=avpriv_strtod
3419 network_extralibs='-lbsd'
3420 exeobjs=compat/plan9/main.o
3421 disable avserver
3422 cp_f='cp'
3423 ;;
3424 none)
3425 ;;
3426 *)
3427 die "Unknown OS '$target_os'."
3428 ;;
3429 esac
3430
3431 # determine libc flavour
3432
3433 probe_libc(){
3434 pfx=$1
3435 pfx_no_=${pfx%_}
3436 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3437 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3438 eval ${pfx}libc_type=uclibc
3439 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3440 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3441 eval ${pfx}libc_type=glibc
3442 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3443 # MinGW headers can be installed on Cygwin, so check for newlib first.
3444 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3445 eval ${pfx}libc_type=newlib
3446 add_${pfx}cppflags -U__STRICT_ANSI__
3447 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3448 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3449 eval ${pfx}libc_type=mingw64
3450 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3451 eval test \$${pfx_no_}cc_type = "gcc" &&
3452 add_${pfx}cppflags -D__printf__=__gnu_printf__
3453 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3454 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3455 eval ${pfx}libc_type=mingw32
3456 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3457 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3458 die "ERROR: MinGW32 runtime version must be >= 3.15."
3459 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3460 eval test \$${pfx_no_}cc_type = "gcc" &&
3461 add_${pfx}cppflags -D__printf__=__gnu_printf__
3462 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3463 eval ${pfx}libc_type=msvcrt
3464 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3465 # 0x601 by default unless something else is set by the user.
3466 # This can easily lead to us detecting functions only present
3467 # in such new versions and producing binaries requiring windows 7.0.
3468 # Therefore explicitly set the default to XP unless the user has
3469 # set something else on the command line.
3470 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3471 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3472 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3473 eval ${pfx}libc_type=klibc
3474 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3475 eval ${pfx}libc_type=bionic
3476 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3477 eval ${pfx}libc_type=solaris
3478 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3479 fi
3480 }
3481
3482 probe_libc
3483 test -n "$libc_type" && enable libc_$libc_type
3484 probe_libc host_
3485 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3486
3487 case $libc_type in
3488 bionic)
3489 add_compat strtod.o strtod=avpriv_strtod
3490 ;;
3491 msvcrt)
3492 add_compat strtod.o strtod=avpriv_strtod
3493 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3494 _snprintf=avpriv_snprintf \
3495 vsnprintf=avpriv_vsnprintf
3496 ;;
3497 esac
3498
3499 # hacks for compiler/libc/os combinations
3500
3501 if enabled_all tms470 libc_glibc; then
3502 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3503 add_cppflags -D__USER_LABEL_PREFIX__=
3504 add_cppflags -D__builtin_memset=memset
3505 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3506 add_cflags -pds=48 # incompatible redefinition of macro
3507 fi
3508
3509 if enabled_all ccc libc_glibc; then
3510 add_ldflags -Wl,-z,now # calls to libots crash without this
3511 fi
3512
3513 esc(){
3514 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3515 }
3516
3517 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3518
3519 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3520
3521 set_default $PATHS_LIST
3522 set_default nm
3523
3524 # we need to build at least one lib type
3525 if ! enabled_any static shared; then
3526 cat <<EOF
3527 At least one library type must be built.
3528 Specify --enable-static to build the static libraries or --enable-shared to
3529 build the shared libraries as well. To only build the shared libraries specify
3530 --disable-static in addition to --enable-shared.
3531 EOF
3532 exit 1;
3533 fi
3534
3535 die_license_disabled() {
3536 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3537 }
3538
3539 die_license_disabled gpl libcdio
3540 die_license_disabled gpl libx264
3541 die_license_disabled gpl libx265
3542 die_license_disabled gpl libxavs
3543 die_license_disabled gpl libxvid
3544 die_license_disabled gpl x11grab
3545
3546 die_license_disabled nonfree libfaac
3547 die_license_disabled nonfree libfdk_aac
3548 die_license_disabled nonfree openssl
3549
3550 die_license_disabled version3 libopencore_amrnb
3551 die_license_disabled version3 libopencore_amrwb
3552 die_license_disabled version3 libvo_aacenc
3553 die_license_disabled version3 libvo_amrwbenc
3554
3555 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3556
3557 disabled optimizations || check_cflags -fomit-frame-pointer
3558
3559 enable_weak_pic() {
3560 disabled pic && return
3561 enable pic
3562 add_cppflags -DPIC
3563 case "$target_os" in
3564 mingw*|cygwin*)
3565 ;;
3566 *)
3567 add_cflags -fPIC
3568 ;;
3569 esac
3570 add_asflags -fPIC
3571 }
3572
3573 enabled pic && enable_weak_pic
3574
3575 check_cc <<EOF || die "Symbol mangling check failed."
3576 int ff_extern;
3577 EOF
3578 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3579 extern_prefix=${sym%%ff_extern*}
3580
3581 check_cc <<EOF && enable_weak inline_asm
3582 void foo(void) { __asm__ volatile ("" ::); }
3583 EOF
3584
3585 _restrict=
3586 for restrict_keyword in restrict __restrict__ __restrict; do
3587 check_cc <<EOF && _restrict=$restrict_keyword && break
3588 void foo(char * $restrict_keyword p);
3589 EOF
3590 done
3591
3592 check_cc <<EOF && enable pragma_deprecated
3593 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3594 EOF
3595
3596 check_cc <<EOF && enable attribute_packed
3597 struct { int x; } __attribute__((packed)) x;
3598 EOF
3599
3600 check_cc <<EOF && enable attribute_may_alias
3601 union { int x; } __attribute__((may_alias)) x;
3602 EOF
3603
3604 check_cc <<EOF || die "endian test failed"
3605 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3606 EOF
3607 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3608
3609 check_inline_asm inline_asm_labels '"1:\n"'
3610
3611 if enabled aarch64; then
3612 # internal assembler in clang 3.3 does not support this instruction
3613 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3614 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3615
3616 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3617
3618 elif enabled alpha; then
3619
3620 check_cflags -mieee
3621
3622 elif enabled arm; then
3623
3624 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3625 enabled thumb && check_cflags -mthumb || check_cflags -marm
3626 nogas=die
3627
3628 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3629 enable vfp_args
3630 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3631 case "${cross_prefix:-$cc}" in
3632 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3633 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3634 __asm__ (".eabi_attribute 28, 1");
3635 int main(void) { return 0; }
3636 EOF
3637 esac
3638 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3639 fi
3640
3641 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3642 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3643 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3644 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3645 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3646 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3647
3648 [ $target_os = linux ] ||
3649 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3650 $ARCH_EXT_LIST_ARM
3651
3652 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3653 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3654
3655 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3656
3657 elif enabled mips; then
3658
3659 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3660
3661 elif enabled parisc; then
3662
3663 if enabled gcc; then
3664 case $($cc -dumpversion) in
3665 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3666 esac
3667 fi
3668
3669 elif enabled ppc; then
3670
3671 enable local_aligned_8 local_aligned_16
3672
3673 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3674 check_inline_asm ibm_asm '"add 0, 0, 0"'
3675 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3676 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3677
3678 # AltiVec flags: The FSF version of GCC differs from the Apple version
3679 if enabled altivec; then
3680 nogas=warn
3681 check_cflags -maltivec -mabi=altivec &&
3682 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3683 check_cflags -faltivec
3684
3685 # check if our compiler supports Motorola AltiVec C API
3686 check_cc <<EOF || disable altivec
3687 $inc_altivec_h
3688 int main(void) {
3689 vector signed int v1 = (vector signed int) { 0 };
3690 vector signed int v2 = (vector signed int) { 1 };
3691 v1 = vec_add(v1, v2);
3692 return 0;
3693 }
3694 EOF
3695
3696 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3697