qsv: Add VP8 decoder
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-bzlib bzip2 compression [autodetect]
192 --enable-frei0r video filtering plugins
193 --enable-gnutls crypto
194 --enable-libbs2b Bauer stereophonic-to-binaural DSP
195 --enable-libcdio audio CD input
196 --enable-libdc1394 IEEE 1394/Firewire camera input
197 --enable-libdcadec DCA audio decoding
198 --enable-libfaac AAC audio encoding
199 --enable-libfdk-aac AAC audio encoding/decoding
200 --enable-libfontconfig font configuration and management
201 --enable-libfreetype font rendering
202 --enable-libgsm GSM audio encoding/decoding
203 --enable-libhdcd HDCD decoding filter
204 --enable-libilbc ILBC audio encoding/decoding
205 --enable-libkvazaar HEVC video encoding
206 --enable-libmp3lame MP3 audio encoding
207 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
208 --enable-libopencore-amrwb AMR-WB audio decoding
209 --enable-libopencv computer vision
210 --enable-libopenh264 H.264 video encoding/decoding
211 --enable-libopenjpeg JPEG 2000 image encoding/decoding
212 --enable-libopus Opus audio encoding/decoding
213 --enable-libpulse Pulseaudio sound server
214 --enable-librtmp RTMP streaming
215 --enable-libschroedinger Dirac video encoding/decoding
216 --enable-libsnappy snappy compression
217 --enable-libspeex Speex audio encoding/decoding
218 --enable-libtheora Theora video encoding/decoding
219 --enable-libtwolame MP2 audio encoding
220 --enable-libvo-aacenc AAC audio encoding
221 --enable-libvo-amrwbenc AMR-WB audio encoding
222 --enable-libvorbis Vorbis audio encoding/decoding
223 --enable-libvpx VP* video encoding/decoding
224 --enable-libwavpack Wavpack audio encoding/decoding
225 --enable-libwebp WebP image encoding/decoding
226 --enable-libx264 H.264 video encoding
227 --enable-libx265 HEVC video encoding
228 --enable-libxavs Chinese AVS video encoding
229 --enable-libxcb X window system protocol communication
230 --enable-libxcb-shm X11 shm communication [auto]
231 --enable-libxcb-xfixes X11 mouse rendering [auto]
232 --enable-libxvid MPEG-4 ASP video encoding
233 --enable-openssl crypto
234 --enable-zlib compression [autodetect]
235
236 The following libraries provide various hardware acceleration features:
237 --enable-cuda Nvidia CUDA (dynamically linked)
238 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
239 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
240 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
241 --enable-libnpp Nvidia CUDA processing
242 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
243 --enable-nvenc Nvidia video encoding
244 --enable-omx OpenMAX IL
245 --enable-omx-rpi OpenMAX IL for Raspberry Pi
246 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
247 --enable-vda Apple Video Decode Acceleration [auto]
248 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
249
250 Toolchain options:
251 --arch=ARCH select architecture [$arch]
252 --cpu=CPU select the minimum required CPU (affects
253 instruction selection, may crash on older CPUs)
254 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
255 --enable-cross-compile assume a cross-compiler is used
256 --sysroot=PATH root of cross-build tree
257 --sysinclude=PATH location of cross-build system headers
258 --target-os=OS compiler targets OS [$target_os]
259 --target-exec=CMD command to run executables on target
260 --target-path=DIR path to view of build directory on target
261 --target-samples=DIR path to samples directory on target
262 --toolchain=NAME set tool defaults according to NAME
263 --nm=NM use nm tool
264 --ar=AR use archive tool AR [$ar_default]
265 --as=AS use assembler AS [$as_default]
266 --cc=CC use C compiler CC [$cc_default]
267 --objcc=OCC use ObjC compiler OCC [$cc_default]
268 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
269 --ld=LD use linker LD
270 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
271 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
272 --host-cc=HOSTCC use host C compiler HOSTCC
273 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
274 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
275 --host-ld=HOSTLD use host linker HOSTLD
276 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
277 --host-libs=HLIBS use libs HLIBS when linking for host
278 --host-os=OS compiler host OS [$target_os]
279 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
280 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
281 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
282 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --build-suffix=SUFFIX library name suffix []
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
342 --disable-random
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
347 NAME (default 0.5).
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
351
352 NOTE: Object files are built at the place where configure is launched.
353 EOF
354 exit 0
355 }
356
357 quotes='""'
358
359 log(){
360 echo "$@" >> $logfile
361 }
362
363 log_file(){
364 log BEGIN $1
365 i=1
366 while read line; do
367 printf '%5s %s\n' "${i}" "${line}"
368 i=$(($i+1))
369 done < $1 >> $logfile
370 log END $1
371 }
372
373 echolog(){
374 log "$@"
375 echo "$@"
376 }
377
378 warn(){
379 log "WARNING: $*"
380 WARNINGS="${WARNINGS}WARNING: $*\n"
381 }
382
383 die(){
384 echolog "$@"
385 cat <<EOF
386
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
390 EOF
391 if disabled logging; then
392 cat <<EOF
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
395 EOF
396 else
397 cat <<EOF
398 Include the log file "$logfile" produced by configure as this will help
399 solving the problem.
400 EOF
401 fi
402 exit 1
403 }
404
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
406 toupper(){
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
408 }
409
410 tolower(){
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
412 }
413
414 c_escape(){
415 echo "$*" | sed 's/["\\]/\\\0/g'
416 }
417
418 sh_quote(){
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
421 echo "$v"
422 }
423
424 cleanws(){
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
426 }
427
428 filter(){
429 pat=$1
430 shift
431 for v; do
432 eval "case $v in $pat) echo $v ;; esac"
433 done
434 }
435
436 filter_out(){
437 pat=$1
438 shift
439 for v; do
440 eval "case $v in $pat) ;; *) echo $v ;; esac"
441 done
442 }
443
444 map(){
445 m=$1
446 shift
447 for v; do eval $m; done
448 }
449
450 add_suffix(){
451 suffix=$1
452 shift
453 for v; do echo ${v}${suffix}; done
454 }
455
456 set_all(){
457 value=$1
458 shift
459 for var in $*; do
460 eval $var=$value
461 done
462 }
463
464 set_weak(){
465 value=$1
466 shift
467 for var; do
468 eval : \${$var:=$value}
469 done
470 }
471
472 sanitize_var_name(){
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
474 }
475
476 set_safe(){
477 var=$1
478 shift
479 eval $(sanitize_var_name "$var")='$*'
480 }
481
482 get_safe(){
483 eval echo \$$(sanitize_var_name "$1")
484 }
485
486 pushvar(){
487 for pvar in $*; do
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
491 done
492 }
493
494 popvar(){
495 for pvar in $*; do
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
502 done
503 }
504
505 enable(){
506 set_all yes $*
507 }
508
509 disable(){
510 set_all no $*
511 }
512
513 enable_weak(){
514 set_weak yes $*
515 }
516
517 disable_weak(){
518 set_weak no $*
519 }
520
521 enable_safe(){
522 for var; do
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524 done
525 }
526
527 disable_safe(){
528 for var; do
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 do_enable_deep(){
534 for var; do
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
538 pushvar var sgs
539 enable_deep $sel
540 popvar sgs
541 enable_deep_weak $sgs
542 popvar var
543 done
544 }
545
546 enable_deep(){
547 do_enable_deep $*
548 enable $*
549 }
550
551 enable_deep_weak(){
552 for var; do
553 disabled $var && continue
554 pushvar var
555 do_enable_deep $var
556 popvar var
557 enable_weak $var
558 done
559 }
560
561 enabled(){
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
564 }
565
566 disabled(){
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
569 }
570
571 enabled_all(){
572 for opt; do
573 enabled $opt || return 1
574 done
575 }
576
577 disabled_all(){
578 for opt; do
579 disabled $opt || return 1
580 done
581 }
582
583 enabled_any(){
584 for opt; do
585 enabled $opt && return 0
586 done
587 }
588
589 disabled_any(){
590 for opt; do
591 disabled $opt && return 0
592 done
593 return 1
594 }
595
596 set_default(){
597 for opt; do
598 eval : \${$opt:=\$${opt}_default}
599 done
600 }
601
602 is_in(){
603 value=$1
604 shift
605 for var in $*; do
606 [ $var = $value ] && return 0
607 done
608 return 1
609 }
610
611 do_check_deps(){
612 for cfg; do
613 cfg="${cfg#!}"
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
617 append allopts $cfg
618
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
625
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
635
636 if enabled $cfg; then
637 enable_deep $dep_sel
638 enable_deep_weak $dep_sgs
639 fi
640
641 disable ${cfg}_checking
642 done
643 }
644
645 check_deps(){
646 unset allopts
647
648 do_check_deps "$@"
649
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
654 done
655 }
656
657 print_config(){
658 pfx=$1
659 files=$2
660 shift 2
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
663 {
664 c = \"$pfx\" toupper(\$1);
665 v = \$2;
666 sub(/yes/, 1, v);
667 sub(/no/, 0, v);
668 for (f in files) {
669 file = files[f];
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
677 }
678 }
679 }"
680 }
681
682 print_enabled(){
683 suf=$1
684 shift
685 for v; do
686 enabled $v && printf "%s\n" ${v%$suf}
687 done
688 }
689
690 append(){
691 var=$1
692 shift
693 eval "$var=\"\$$var $*\""
694 }
695
696 prepend(){
697 var=$1
698 shift
699 eval "$var=\"$* \$$var\""
700 }
701
702 unique(){
703 var=$1
704 uniq_list=""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
707 done
708 eval "$var=\"${uniq_list}\""
709 }
710
711 add_cppflags(){
712 append CPPFLAGS "$@"
713 }
714
715 add_cflags(){
716 append CFLAGS $($cflags_filter "$@")
717 }
718
719 add_asflags(){
720 append ASFLAGS $($asflags_filter "$@")
721 }
722
723 add_objcflags(){
724 append OBJCFLAGS $($objcflags_filter "$@")
725 }
726
727 add_ldflags(){
728 append LDFLAGS $($ldflags_filter "$@")
729 }
730
731 add_ldexeflags(){
732 append LDEXEFLAGS $($ldflags_filter "$@")
733 }
734
735 add_stripflags(){
736 append STRIPFLAGS "$@"
737 }
738
739 add_extralibs(){
740 prepend extralibs $($ldflags_filter "$@")
741 }
742
743 add_host_cppflags(){
744 append host_cppflags "$@"
745 }
746
747 add_host_cflags(){
748 append host_cflags $($host_cflags_filter "$@")
749 }
750
751 add_host_ldflags(){
752 append host_ldflags $($host_ldflags_filter "$@")
753 }
754
755 add_compat(){
756 append compat_objs $1
757 shift
758 map 'add_cppflags -D$v' "$@"
759 }
760
761 check_cmd(){
762 log "$@"
763 "$@" >> $logfile 2>&1
764 }
765
766 cc_o(){
767 eval printf '%s\\n' $CC_O
768 }
769
770 cc_e(){
771 eval printf '%s\\n' $CC_E
772 }
773
774 check_cc(){
775 log check_cc "$@"
776 cat > $TMPC
777 log_file $TMPC
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
779 }
780
781 check_objcc(){
782 log check_objcc "$@"
783 cat > $TMPC
784 log_file $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
786 }
787
788 check_cpp(){
789 log check_cpp "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793 }
794
795 as_o(){
796 eval printf '%s\\n' $AS_O
797 }
798
799 check_as(){
800 log check_as "$@"
801 cat > $TMPS
802 log_file $TMPS
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804 }
805
806 check_inline_asm(){
807 log check_inline_asm "$@"
808 name="$1"
809 code="$2"
810 shift 2
811 disable $name
812 check_cc "$@" <<EOF && enable $name
813 void foo(void){ __asm__ volatile($code); }
814 EOF
815 }
816
817 check_insn(){
818 log check_insn "$@"
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
821 }
822
823 check_yasm(){
824 log check_yasm "$@"
825 echo "$1" > $TMPS
826 log_file $TMPS
827 shift 1
828 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
829 }
830
831 ld_o(){
832 eval printf '%s\\n' $LD_O
833 }
834
835 check_ld(){
836 log check_ld "$@"
837 flags=$(filter_out '-l*' "$@")
838 libs=$(filter '-l*' "$@")
839 check_cc $($cflags_filter $flags) || return
840 flags=$($ldflags_filter $flags)
841 libs=$($ldflags_filter $libs)
842 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
843 }
844
845 print_include(){
846 hdr=$1
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
850 }
851
852 check_code(){
853 log check_code "$@"
854 check=$1
855 headers=$2
856 code=$3
857 shift 3
858 {
859 for hdr in $headers; do
860 print_include $hdr
861 done
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
864 }
865
866 check_cppflags(){
867 log check_cppflags "$@"
868 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
869 int x;
870 EOF
871 }
872
873 test_cflags(){
874 log test_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_cc "$@" <<EOF
877 int x;
878 EOF
879 }
880
881 check_cflags(){
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
884 }
885
886 test_objcflags(){
887 log test_objcflags "$@"
888 set -- $($objcflags_filter "$@")
889 check_objcc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_objcflags(){
895 log check_objcflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
897 }
898
899 test_ldflags(){
900 log test_ldflags "$@"
901 check_ld "$@" <<EOF
902 int main(void){ return 0; }
903 EOF
904 }
905
906 check_ldflags(){
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
909 }
910
911 test_stripflags(){
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
914 check_cc <<EOF
915 int main(void) { return 0; }
916 EOF
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 }
919
920 check_stripflags(){
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
923 }
924
925 check_header(){
926 log check_header "$@"
927 header=$1
928 shift
929 disable_safe $header
930 check_cpp "$@" <<EOF && enable_safe $header
931 #include <$header>
932 int x;
933 EOF
934 }
935
936 check_func(){
937 log check_func "$@"
938 func=$1
939 shift
940 disable $func
941 check_ld "$@" <<EOF && enable $func
942 extern int $func();
943 int main(void){ $func(); }
944 EOF
945 }
946
947 check_mathfunc(){
948 log check_mathfunc "$@"
949 func=$1
950 narg=$2
951 shift 2
952 test $narg = 2 && args="f, g" || args="f"
953 disable $func
954 check_ld "$@" <<EOF && enable $func
955 #include <math.h>
956 float foo(float f, float g) { return $func($args); }
957 int main(void){ return 0; }
958 EOF
959 }
960
961 check_func_headers(){
962 log check_func_headers "$@"
963 headers=$1
964 funcs=$2
965 shift 2
966 {
967 for hdr in $headers; do
968 print_include $hdr
969 done
970 for func in $funcs; do
971 echo "long check_$func(void) { return (long) $func; }"
972 done
973 echo "int main(void) { return 0; }"
974 } | check_ld "$@" && enable $funcs && enable_safe $headers
975 }
976
977 check_cpp_condition(){
978 log check_cpp_condition "$@"
979 header=$1
980 condition=$2
981 shift 2
982 check_cpp "$@" <<EOF
983 #include <$header>
984 #if !($condition)
985 #error "unsatisfied condition: $condition"
986 #endif
987 EOF
988 }
989
990 test_cflags_cpp(){
991 log test_cflags_cpp "$@"
992 flags=$1
993 condition=$2
994 shift 2
995 set -- $($cflags_filter "$flags")
996 check_cpp "$@" <<EOF
997 #if !($condition)
998 #error "unsatisfied condition: $condition"
999 #endif
1000 EOF
1001 }
1002
1003 check_lib(){
1004 log check_lib "$@"
1005 headers="$1"
1006 funcs="$2"
1007 shift 2
1008 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1009 }
1010
1011 check_pkg_config(){
1012 log check_pkg_config "$@"
1013 pkg="$1"
1014 headers="$2"
1015 funcs="$3"
1016 shift 3
1017 check_cmd $pkg_config --exists --print-errors $pkg || return
1018 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1019 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1020 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1021 set_safe "${pkg}_cflags" $pkg_cflags &&
1022 set_safe "${pkg}_libs" $pkg_libs
1023 }
1024
1025 check_exec(){
1026 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1027 }
1028
1029 check_exec_crash(){
1030 log check_exec_crash "$@"
1031 code=$(cat)
1032
1033 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1034 # are safe but may not be available everywhere. Thus we use
1035 # raise(SIGTERM) instead. The check is run in a subshell so we
1036 # can redirect the "Terminated" message from the shell. SIGBUS
1037 # is not defined by standard C so it is used conditionally.
1038
1039 (check_exec "$@") >> $logfile 2>&1 <<EOF
1040 #include <signal.h>
1041 static void sighandler(int sig){
1042 raise(SIGTERM);
1043 }
1044 int foo(void){
1045 $code
1046 }
1047 int (*func_ptr)(void) = foo;
1048 int main(void){
1049 signal(SIGILL, sighandler);
1050 signal(SIGFPE, sighandler);
1051 signal(SIGSEGV, sighandler);
1052 #ifdef SIGBUS
1053 signal(SIGBUS, sighandler);
1054 #endif
1055 return func_ptr();
1056 }
1057 EOF
1058 }
1059
1060 check_type(){
1061 log check_type "$@"
1062 headers=$1
1063 type=$2
1064 shift 2
1065 disable_safe "$type"
1066 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1067 }
1068
1069 check_struct(){
1070 log check_struct "$@"
1071 headers=$1
1072 struct=$2
1073 member=$3
1074 shift 3
1075 disable_safe "${struct}_${member}"
1076 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1077 enable_safe "${struct}_${member}"
1078 }
1079
1080 check_builtin(){
1081 log check_builtin "$@"
1082 name=$1
1083 headers=$2
1084 builtin=$3
1085 shift 3
1086 disable "$name"
1087 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1088 }
1089
1090 check_compile_assert(){
1091 log check_compile_assert "$@"
1092 name=$1
1093 headers=$2
1094 condition=$3
1095 shift 3
1096 disable "$name"
1097 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1098 }
1099
1100 require(){
1101 log require "$@"
1102 name="$1"
1103 headers="$2"
1104 func="$3"
1105 shift 3
1106 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1107 }
1108
1109 require_pkg_config(){
1110 log require_pkg_config "$@"
1111 pkg="$1"
1112 check_pkg_config "$@" || die "ERROR: $pkg not found"
1113 add_cflags $(get_safe "${pkg}_cflags")
1114 add_extralibs $(get_safe "${pkg}_libs")
1115 }
1116
1117 hostcc_e(){
1118 eval printf '%s\\n' $HOSTCC_E
1119 }
1120
1121 hostcc_o(){
1122 eval printf '%s\\n' $HOSTCC_O
1123 }
1124
1125 check_host_cc(){
1126 log check_host_cc "$@"
1127 cat > $TMPC
1128 log_file $TMPC
1129 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1130 }
1131
1132 check_host_cpp(){
1133 log check_host_cpp "$@"
1134 cat > $TMPC
1135 log_file $TMPC
1136 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1137 }
1138
1139 check_host_cppflags(){
1140 log check_host_cppflags "$@"
1141 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1142 int x;
1143 EOF
1144 }
1145
1146 check_host_cflags(){
1147 log check_host_cflags "$@"
1148 set -- $($host_cflags_filter "$@")
1149 check_host_cc "$@" <<EOF && append host_cflags "$@"
1150 int x;
1151 EOF
1152 }
1153
1154 check_host_cpp_condition(){
1155 log check_host_cpp_condition "$@"
1156 header=$1
1157 condition=$2
1158 shift 2
1159 check_host_cpp "$@" <<EOF
1160 #include <$header>
1161 #if !($condition)
1162 #error "unsatisfied condition: $condition"
1163 #endif
1164 EOF
1165 }
1166
1167 apply(){
1168 file=$1
1169 shift
1170 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1171 }
1172
1173 cp_if_changed(){
1174 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1175 mkdir -p "$(dirname $2)"
1176 $cp_f "$1" "$2"
1177 }
1178
1179 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1180 # system-dependent things.
1181
1182 AVCODEC_COMPONENTS="
1183 bsfs
1184 decoders
1185 encoders
1186 hwaccels
1187 parsers
1188 "
1189
1190 AVDEVICE_COMPONENTS="
1191 indevs
1192 outdevs
1193 "
1194 AVFILTER_COMPONENTS="
1195 filters
1196 "
1197 AVFORMAT_COMPONENTS="
1198 demuxers
1199 muxers
1200 protocols
1201 "
1202
1203 AVRESAMPLE_COMPONENTS=""
1204 AVUTIL_COMPONENTS=""
1205
1206 COMPONENT_LIST="
1207 $AVCODEC_COMPONENTS
1208 $AVDEVICE_COMPONENTS
1209 $AVFILTER_COMPONENTS
1210 $AVFORMAT_COMPONENTS
1211 $AVRESAMPLE_COMPONENTS
1212 $AVUTIL_COMPONENTS
1213 "
1214
1215 EXAMPLE_LIST="
1216 decode_audio_example
1217 decode_video_example
1218 encode_audio_example
1219 encode_video_example
1220 filter_audio_example
1221 metadata_example
1222 output_example
1223 qsvdec_example
1224 transcode_aac_example
1225 "
1226
1227 HWACCEL_LIBRARY_NONFREE_LIST="
1228 cuda
1229 libnpp
1230 "
1231 HWACCEL_LIBRARY_LIST="
1232 $HWACCEL_LIBRARY_NONFREE_LIST
1233 d3d11va
1234 dxva2
1235 libmfx
1236 mmal
1237 nvenc
1238 omx
1239 vaapi
1240 vda
1241 vdpau
1242 "
1243
1244 EXTERNAL_LIBRARY_GPL_LIST="
1245 libcdio
1246 libx264
1247 libx265
1248 libxavs
1249 libxvid
1250 "
1251
1252 EXTERNAL_LIBRARY_NONFREE_LIST="
1253 libfaac
1254 libfdk_aac
1255 openssl
1256 "
1257
1258 EXTERNAL_LIBRARY_VERSION3_LIST="
1259 libopencore_amrnb
1260 libopencore_amrwb
1261 libvo_aacenc
1262 libvo_amrwbenc
1263 "
1264
1265 EXTERNAL_LIBRARY_LIST="
1266 $EXTERNAL_LIBRARY_GPL_LIST
1267 $EXTERNAL_LIBRARY_NONFREE_LIST
1268 $EXTERNAL_LIBRARY_VERSION3_LIST
1269 avisynth
1270 bzlib
1271 frei0r
1272 gnutls
1273 libbs2b
1274 libdc1394
1275 libdcadec
1276 libfontconfig
1277 libfreetype
1278 libgsm
1279 libhdcd
1280 libilbc
1281 libkvazaar
1282 libmp3lame
1283 libopencv
1284 libopenh264
1285 libopenjpeg
1286 libopus
1287 libpulse
1288 librtmp
1289 libschroedinger
1290 libsnappy
1291 libspeex
1292 libtheora
1293 libtwolame
1294 libvorbis
1295 libvpx
1296 libwavpack
1297 libwebp
1298 libxcb
1299 libxcb_shm
1300 libxcb_xfixes
1301 zlib
1302 "
1303
1304 FEATURE_LIST="
1305 gray
1306 hardcoded_tables
1307 omx_rpi
1308 runtime_cpudetect
1309 safe_bitstream_reader
1310 shared
1311 small
1312 sram
1313 static
1314 swscale_alpha
1315 "
1316
1317 LIBRARY_LIST="
1318 avcodec
1319 avdevice
1320 avfilter
1321 avformat
1322 avresample
1323 avutil
1324 swscale
1325 "
1326
1327 LICENSE_LIST="
1328 gpl
1329 nonfree
1330 version3
1331 "
1332
1333 PROGRAM_LIST="
1334 avconv
1335 avplay
1336 avprobe
1337 "
1338
1339 SUBSYSTEM_LIST="
1340 dct
1341 doc
1342 error_resilience
1343 faan
1344 fft
1345 lsp
1346 lzo
1347 mdct
1348 network
1349 rdft
1350 "
1351
1352 CONFIG_LIST="
1353 $COMPONENT_LIST
1354 $EXAMPLE_LIST
1355 $EXTERNAL_LIBRARY_LIST
1356 $HWACCEL_LIBRARY_LIST
1357 $FEATURE_LIST
1358 $LICENSE_LIST
1359 $LIBRARY_LIST
1360 $PROGRAM_LIST
1361 $SUBSYSTEM_LIST
1362 neon_clobber_test
1363 pic
1364 pod2man
1365 texi2html
1366 thumb
1367 valgrind_backtrace
1368 xmm_clobber_test
1369 "
1370
1371 THREADS_LIST="
1372 pthreads
1373 w32threads
1374 "
1375
1376 ATOMICS_LIST="
1377 atomics_gcc
1378 atomics_suncc
1379 atomics_win32
1380 "
1381
1382 ARCH_LIST="
1383 aarch64
1384 alpha
1385 arm
1386 avr32
1387 avr32_ap
1388 avr32_uc
1389 bfin
1390 ia64
1391 m68k
1392 mips
1393 mips64
1394 parisc
1395 ppc
1396 ppc64
1397 s390
1398 sh4
1399 sparc
1400 sparc64
1401 tilegx
1402 tilepro
1403 tomi
1404 x86
1405 x86_32
1406 x86_64
1407 "
1408
1409 ARCH_EXT_LIST_ARM="
1410 armv5te
1411 armv6
1412 armv6t2
1413 armv8
1414 neon
1415 vfp
1416 vfpv3
1417 "
1418
1419 ARCH_EXT_LIST_X86_SIMD="
1420 amd3dnow
1421 amd3dnowext
1422 avx
1423 avx2
1424 fma3
1425 fma4
1426 mmx
1427 mmxext
1428 sse
1429 sse2
1430 sse3
1431 sse4
1432 sse42
1433 ssse3
1434 xop
1435 "
1436
1437 ARCH_EXT_LIST_PPC="
1438 altivec
1439 dcbzl
1440 ldbrx
1441 power8
1442 ppc4xx
1443 vsx
1444 "
1445
1446 ARCH_EXT_LIST_X86="
1447 $ARCH_EXT_LIST_X86_SIMD
1448 cpunop
1449 i686
1450 "
1451
1452 ARCH_EXT_LIST_MIPS="
1453 loongson
1454 mips32r1
1455 mips64r1
1456 mips32r2
1457 mips64r2
1458 mips32r6
1459 mips64r6
1460 "
1461
1462 ARCH_EXT_LIST="
1463 $ARCH_EXT_LIST_ARM
1464 $ARCH_EXT_LIST_MIPS
1465 $ARCH_EXT_LIST_PPC
1466 $ARCH_EXT_LIST_X86
1467 vis
1468 "
1469
1470 ARCH_FEATURES="
1471 aligned_stack
1472 fast_64bit
1473 fast_clz
1474 fast_cmov
1475 local_aligned_8
1476 local_aligned_16
1477 local_aligned_32
1478 simd_align_16
1479 simd_align_32
1480 "
1481
1482 BUILTIN_LIST="
1483 atomic_cas_ptr
1484 machine_rw_barrier
1485 MemoryBarrier
1486 mm_empty
1487 rdtsc
1488 sem_timedwait
1489 sync_val_compare_and_swap
1490 "
1491 HAVE_LIST_CMDLINE="
1492 inline_asm
1493 symver
1494 yasm
1495 "
1496
1497 HAVE_LIST_PUB="
1498 bigendian
1499 fast_unaligned
1500 "
1501
1502 HEADERS_LIST="
1503 AVFoundation_AVFoundation_h
1504 alsa_asoundlib_h
1505 altivec_h
1506 arpa_inet_h
1507 cdio_paranoia_h
1508 cdio_paranoia_paranoia_h
1509 dispatch_dispatch_h
1510 dev_bktr_ioctl_bt848_h
1511 dev_bktr_ioctl_meteor_h
1512 dev_ic_bt8xx_h
1513 dev_video_bktr_ioctl_bt848_h
1514 dev_video_meteor_ioctl_meteor_h
1515 direct_h
1516 dlfcn_h
1517 d3d11_h
1518 dxva_h
1519 gsm_h
1520 io_h
1521 mach_mach_time_h
1522 machine_ioctl_bt848_h
1523 machine_ioctl_meteor_h
1524 malloc_h
1525 poll_h
1526 sndio_h
1527 soundcard_h
1528 stdatomic_h
1529 sys_mman_h
1530 sys_param_h
1531 sys_resource_h
1532 sys_select_h
1533 sys_soundcard_h
1534 sys_time_h
1535 sys_un_h
1536 sys_videoio_h
1537 unistd_h
1538 valgrind_valgrind_h
1539 windows_h
1540 winsock2_h
1541 "
1542
1543 INTRINSICS_LIST="
1544 intrinsics_neon
1545 "
1546
1547 MATH_FUNCS="
1548 atanf
1549 atan2f
1550 cbrtf
1551 cosf
1552 exp2
1553 exp2f
1554 expf
1555 isinf
1556 isnan
1557 ldexpf
1558 llrint
1559 llrintf
1560 log2
1561 log2f
1562 log10f
1563 lrint
1564 lrintf
1565 powf
1566 rint
1567 round
1568 roundf
1569 sinf
1570 trunc
1571 truncf
1572 "
1573
1574 SYSTEM_FUNCS="
1575 aligned_malloc
1576 clock_gettime
1577 closesocket
1578 CommandLineToArgvW
1579 CoTaskMemFree
1580 CryptGenRandom
1581 dlopen
1582 fcntl
1583 flt_lim
1584 fork
1585 getaddrinfo
1586 gethrtime
1587 getopt
1588 GetProcessAffinityMask
1589 GetProcessMemoryInfo
1590 GetProcessTimes
1591 getrusage
1592 GetSystemTimeAsFileTime
1593 gettimeofday
1594 gmtime_r
1595 inet_aton
1596 isatty
1597 jack_port_get_latency_range
1598 LoadLibrary
1599 localtime_r
1600 mach_absolute_time
1601 MapViewOfFile
1602 memalign
1603 mkstemp
1604 mmap
1605 mprotect
1606 nanosleep
1607 posix_memalign
1608 sched_getaffinity
1609 SetConsoleTextAttribute
1610 setmode
1611 setrlimit
1612 Sleep
1613 strerror_r
1614 sysconf
1615 sysctl
1616 usleep
1617 VirtualAlloc
1618 "
1619
1620 TOOLCHAIN_FEATURES="
1621 as_dn_directive
1622 as_fpu_directive
1623 as_func
1624 as_object_arch
1625 asm_mod_q
1626 attribute_may_alias
1627 attribute_packed
1628 ebp_available
1629 ebx_available
1630 gnu_as
1631 ibm_asm
1632 inline_asm_labels
1633 pragma_deprecated
1634 symver_asm_label
1635 symver_gnu_asm
1636 vfp_args
1637 xform_asm
1638 xmm_clobbers
1639 "
1640
1641 TYPES_LIST="
1642 CONDITION_VARIABLE_Ptr
1643 socklen_t
1644 struct_addrinfo
1645 struct_group_source_req
1646 struct_ip_mreq_source
1647 struct_ipv6_mreq
1648 struct_pollfd
1649 struct_rusage_ru_maxrss
1650 struct_sockaddr_in6
1651 struct_sockaddr_sa_len
1652 struct_sockaddr_storage
1653 struct_v4l2_frmivalenum_discrete
1654 "
1655
1656 HAVE_LIST="
1657 $ARCH_EXT_LIST
1658 $(add_suffix _external $ARCH_EXT_LIST)
1659 $(add_suffix _inline $ARCH_EXT_LIST)
1660 $ARCH_FEATURES
1661 $BUILTIN_LIST
1662 $HAVE_LIST_CMDLINE
1663 $HAVE_LIST_PUB
1664 $HEADERS_LIST
1665 $INTRINSICS_LIST
1666 $MATH_FUNCS
1667 $SYSTEM_FUNCS
1668 $THREADS_LIST
1669 $TOOLCHAIN_FEATURES
1670 $TYPES_LIST
1671 dos_paths
1672 dxva2_lib
1673 libc_msvcrt
1674 libdc1394_1
1675 libdc1394_2
1676 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1677 sdl
1678 section_data_rel_ro
1679 threads
1680 vaapi_drm
1681 vaapi_x11
1682 vdpau_x11
1683 xlib
1684 "
1685
1686 # options emitted with CONFIG_ prefix but not available on the command line
1687 CONFIG_EXTRA="
1688 aandcttables
1689 ac3dsp
1690 audio_frame_queue
1691 audiodsp
1692 blockdsp
1693 bswapdsp
1694 cabac
1695 dirac_parse
1696 dvprofile
1697 faandct
1698 faanidct
1699 fdctdsp
1700 flacdsp
1701 fmtconvert
1702 g722dsp
1703 gcrypt
1704 gmp
1705 golomb
1706 gplv3
1707 h263dsp
1708 h264chroma
1709 h264dsp
1710 h264parse
1711 h264pred
1712 h264qpel
1713 hpeldsp
1714 huffman
1715 huffyuvdsp
1716 huffyuvencdsp
1717 idctdsp
1718 iirfilter
1719 imdct15
1720 intrax8
1721 iso_media
1722 ividsp
1723 jpegtables
1724 libx262
1725 lgplv3
1726 lpc
1727 lzf
1728 me_cmp
1729 mpeg_er
1730 mpegaudio
1731 mpegaudiodsp
1732 mpegvideo
1733 mpegvideoenc
1734 mss34dsp
1735 pixblockdsp
1736 qpeldsp
1737 qsv
1738 qsvdec
1739 qsvenc
1740 rangecoder
1741 riffdec
1742 riffenc
1743 rtpdec
1744 rtpenc_chain
1745 rv34dsp
1746 sinewin
1747 snappy
1748 srtp
1749 startcode
1750 texturedsp
1751 texturedspenc
1752 tpeldsp
1753 vaapi_encode
1754 vc1dsp
1755 videodsp
1756 vp3dsp
1757 vp56dsp
1758 vp8dsp
1759 wma_freqs
1760 wmv2dsp
1761 "
1762
1763 CMDLINE_SELECT="
1764 $ARCH_EXT_LIST
1765 $CONFIG_LIST
1766 $HAVE_LIST_CMDLINE
1767 $THREADS_LIST
1768 asm
1769 cross_compile
1770 debug
1771 extra_warnings
1772 logging
1773 lto
1774 optimizations
1775 rpath
1776 "
1777
1778 PATHS_LIST="
1779 bindir
1780 datadir
1781 docdir
1782 incdir
1783 libdir
1784 mandir
1785 prefix
1786 shlibdir
1787 "
1788
1789 CMDLINE_SET="
1790 $PATHS_LIST
1791 ar
1792 arch
1793 as
1794 build_suffix
1795 cc
1796 objcc
1797 cpu
1798 cross_prefix
1799 custom_allocator
1800 dep_cc
1801 env
1802 extra_version
1803 host_cc
1804 host_cflags
1805 host_ld
1806 host_ldflags
1807 host_libs
1808 host_os
1809 ld
1810 logfile
1811 malloc_prefix
1812 nm
1813 optflags
1814 pkg_config
1815 pkg_config_flags
1816 random_seed
1817 samples
1818 sysinclude
1819 sysroot
1820 target_exec
1821 target_os
1822 target_path
1823 target_samples
1824 toolchain
1825 "
1826
1827 CMDLINE_APPEND="
1828 extra_cflags
1829 extra_objcflags
1830 host_cppflags
1831 "
1832
1833 # code dependency declarations
1834
1835 # architecture extensions
1836
1837 armv5te_deps="arm"
1838 armv6_deps="arm"
1839 armv6t2_deps="arm"
1840 armv8_deps="aarch64"
1841 neon_deps_any="aarch64 arm"
1842 intrinsics_neon_deps="neon"
1843 vfp_deps_any="aarch64 arm"
1844 vfpv3_deps="vfp"
1845
1846 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1847
1848 altivec_deps="ppc"
1849 ppc4xx_deps="ppc"
1850 vsx_deps="altivec"
1851 power8_deps="vsx"
1852
1853 cpunop_deps="i686"
1854 x86_64_select="i686"
1855 x86_64_suggest="fast_cmov"
1856
1857 amd3dnow_deps="mmx"
1858 amd3dnowext_deps="amd3dnow"
1859 i686_deps="x86"
1860 mmx_deps="x86"
1861 mmxext_deps="mmx"
1862 sse_deps="mmxext"
1863 sse2_deps="sse"
1864 sse3_deps="sse2"
1865 ssse3_deps="sse3"
1866 sse4_deps="ssse3"
1867 sse42_deps="sse4"
1868 avx_deps="sse42"
1869 xop_deps="avx"
1870 fma3_deps="avx"
1871 fma4_deps="avx"
1872 avx2_deps="avx"
1873
1874 mmx_external_deps="yasm"
1875 mmx_inline_deps="inline_asm"
1876 mmx_suggest="mmx_external mmx_inline"
1877
1878 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1879 eval dep=\$${ext}_deps
1880 eval ${ext}_external_deps='"${dep}_external"'
1881 eval ${ext}_inline_deps='"${dep}_inline"'
1882 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1883 done
1884
1885 aligned_stack_if_any="aarch64 ppc x86"
1886 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1887 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1888 fast_unaligned_if_any="aarch64 ppc x86"
1889 simd_align_16_if_any="altivec neon sse"
1890 simd_align_32_if_any="avx"
1891
1892 # system capabilities
1893 symver_if_any="symver_asm_label symver_gnu_asm"
1894 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1895
1896 # threading support
1897 atomics_gcc_if="sync_val_compare_and_swap"
1898 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1899 atomics_win32_if="MemoryBarrier"
1900 atomics_native_if_any="$ATOMICS_LIST"
1901 w32threads_deps="atomics_native"
1902 threads_if_any="$THREADS_LIST"
1903
1904 # subsystems
1905 dct_select="rdft"
1906 dirac_parse_select="golomb"
1907 error_resilience_select="me_cmp"
1908 faandct_deps="faan fdctdsp"
1909 faanidct_deps="faan idctdsp"
1910 h264dsp_select="startcode"
1911 intrax8_select="blockdsp idctdsp"
1912 mdct_select="fft"
1913 rdft_select="fft"
1914 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1915 mpeg_er_select="error_resilience"
1916 mpegaudio_select="mpegaudiodsp"
1917 mpegaudiodsp_select="dct"
1918 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1919 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1920 vc1dsp_select="h264chroma qpeldsp startcode"
1921
1922 # decoders / encoders
1923 aac_decoder_select="imdct15 mdct sinewin"
1924 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1925 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1926 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1927 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1928 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1929 adpcm_g722_decoder_select="g722dsp"
1930 adpcm_g722_encoder_select="g722dsp"
1931 aic_decoder_select="golomb idctdsp"
1932 alac_encoder_select="lpc"
1933 als_decoder_select="bswapdsp"
1934 amrnb_decoder_select="lsp"
1935 amrwb_decoder_select="lsp"
1936 amv_decoder_select="sp5x_decoder"
1937 ape_decoder_select="bswapdsp"
1938 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1939 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1940 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1941 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1942 atrac1_decoder_select="mdct sinewin"
1943 atrac3_decoder_select="mdct"
1944 atrac3p_decoder_select="mdct sinewin"
1945 bink_decoder_select="blockdsp hpeldsp"
1946 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1947 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1948 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1949 cllc_decoder_select="bswapdsp"
1950 comfortnoise_encoder_select="lpc"
1951 cook_decoder_select="audiodsp mdct sinewin"
1952 cscd_decoder_select="lzo"
1953 cscd_decoder_suggest="zlib"
1954 dca_decoder_select="fmtconvert mdct"
1955 dds_decoder_select="texturedsp"
1956 dnxhd_decoder_select="blockdsp idctdsp"
1957 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1958 dvvideo_decoder_select="dvprofile idctdsp"
1959 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1960 dxa_decoder_deps="zlib"
1961 dxv_decoder_select="lzf texturedsp"
1962 eac3_decoder_select="ac3_decoder"
1963 eac3_encoder_select="ac3_encoder"
1964 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1965 eatgq_decoder_select="aandcttables idctdsp"
1966 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1967 exr_decoder_deps="zlib"
1968 ffv1_decoder_select="golomb rangecoder"
1969 ffv1_encoder_select="rangecoder"
1970 ffvhuff_decoder_select="huffyuv_decoder"
1971 ffvhuff_encoder_select="huffyuv_encoder"
1972 fic_decoder_select="golomb"
1973 flac_decoder_select="flacdsp golomb"
1974 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1975 flashsv_decoder_deps="zlib"
1976 flashsv_encoder_deps="zlib"
1977 flashsv2_decoder_deps="zlib"
1978 flv_decoder_select="h263_decoder"
1979 flv_encoder_select="h263_encoder"
1980 fourxm_decoder_select="blockdsp bswapdsp"
1981 fraps_decoder_select="bswapdsp huffman"
1982 g2m_decoder_deps="zlib"
1983 g2m_decoder_select="blockdsp idctdsp jpegtables"
1984 h261_decoder_select="mpeg_er mpegvideo"
1985 h261_encoder_select="aandcttables mpegvideoenc"
1986 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1987 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1988 h263i_decoder_select="h263_decoder"
1989 h263p_encoder_select="h263_encoder"
1990 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1991 h264_decoder_suggest="error_resilience"
1992 hap_decoder_select="snappy texturedsp"
1993 hap_encoder_deps="libsnappy"
1994 hap_encoder_select="texturedspenc"
1995 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1996 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1997 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1998 iac_decoder_select="imc_decoder"
1999 imc_decoder_select="bswapdsp fft mdct sinewin"
2000 indeo3_decoder_select="hpeldsp"
2001 indeo4_decoder_select="ividsp"
2002 indeo5_decoder_select="ividsp"
2003 interplay_video_decoder_select="hpeldsp"
2004 jpegls_decoder_select="golomb mjpeg_decoder"
2005 jpegls_encoder_select="golomb"
2006 jv_decoder_select="blockdsp"
2007 lagarith_decoder_select="huffyuvdsp"
2008 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2009 loco_decoder_select="golomb"
2010 magicyuv_decoder_select="huffyuvdsp"
2011 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2012 metasound_decoder_select="lsp mdct sinewin"
2013 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2014 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2015 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2016 mjpegb_decoder_select="mjpeg_decoder"
2017 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2018 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2019 mlp_decoder_select="mlp_parser"
2020 motionpixels_decoder_select="bswapdsp"
2021 mp1_decoder_select="mpegaudio"
2022 mp1float_decoder_select="mpegaudio"
2023 mp2_decoder_select="mpegaudio"
2024 mp2float_decoder_select="mpegaudio"
2025 mp3_decoder_select="mpegaudio"
2026 mp3adu_decoder_select="mpegaudio"
2027 mp3adufloat_decoder_select="mpegaudio"
2028 mp3float_decoder_select="mpegaudio"
2029 mp3on4_decoder_select="mpegaudio"
2030 mp3on4float_decoder_select="mpegaudio"
2031 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2032 mpc8_decoder_select="mpegaudiodsp"
2033 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2034 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2035 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2036 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2037 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2038 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2039 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2040 mpeg4_encoder_select="h263_encoder"
2041 msa1_decoder_select="mss34dsp"
2042 msmpeg4v1_decoder_select="h263_decoder"
2043 msmpeg4v2_decoder_select="h263_decoder"
2044 msmpeg4v2_encoder_select="h263_encoder"
2045 msmpeg4v3_decoder_select="h263_decoder"
2046 msmpeg4v3_encoder_select="h263_encoder"
2047 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2048 mts2_decoder_select="mss34dsp"
2049 mxpeg_decoder_select="mjpeg_decoder"
2050 nellymoser_decoder_select="mdct sinewin"
2051 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2052 nuv_decoder_select="idctdsp lzo"
2053 on2avc_decoder_select="mdct"
2054 opus_decoder_deps="avresample"
2055 opus_decoder_select="imdct15"
2056 png_decoder_deps="zlib"
2057 png_encoder_deps="zlib"
2058 png_encoder_select="huffyuvencdsp"
2059 prores_decoder_select="idctdsp"
2060 prores_encoder_select="fdctdsp"
2061 qcelp_decoder_select="lsp"
2062 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2063 ra_144_encoder_select="audio_frame_queue lpc"
2064 ralf_decoder_select="golomb"
2065 rscc_decoder_deps="zlib"
2066 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2067 rv10_encoder_select="h263_encoder"
2068 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2069 rv20_encoder_select="h263_encoder"
2070 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2071 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2072 screenpresso_decoder_deps="zlib"
2073 shorten_decoder_select="golomb"
2074 sipr_decoder_select="lsp"
2075 sp5x_decoder_select="mjpeg_decoder"
2076 svq1_decoder_select="hpeldsp"
2077 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2078 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2079 svq3_decoder_suggest="zlib"
2080 tak_decoder_select="audiodsp"
2081 tdsc_decoder_deps="zlib"
2082 tdsc_decoder_select="mjpeg_decoder"
2083 theora_decoder_select="vp3_decoder"
2084 thp_decoder_select="mjpeg_decoder"
2085 tiff_decoder_suggest="zlib"
2086 tiff_encoder_suggest="zlib"
2087 truehd_decoder_select="mlp_decoder"
2088 truemotion2_decoder_select="bswapdsp"
2089 truespeech_decoder_select="bswapdsp"
2090 tscc_decoder_deps="zlib"
2091 txd_decoder_select="texturedsp"
2092 twinvq_decoder_select="mdct lsp sinewin"
2093 utvideo_decoder_select="bswapdsp"
2094 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2095 vble_decoder_select="huffyuvdsp"
2096 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2097 vc1image_decoder_select="vc1_decoder"
2098 vorbis_decoder_select="mdct"
2099 vorbis_encoder_select="mdct"
2100 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2101 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2102 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2103 vp6a_decoder_select="vp6_decoder"
2104 vp6f_decoder_select="vp6_decoder"
2105 vp7_decoder_select="h264pred videodsp vp8dsp"
2106 vp8_decoder_select="h264pred videodsp vp8dsp"
2107 vp9_decoder_select="videodsp"
2108 webp_decoder_select="vp8_decoder"
2109 wmapro_decoder_select="mdct sinewin wma_freqs"
2110 wmav1_decoder_select="mdct sinewin wma_freqs"
2111 wmav1_encoder_select="mdct sinewin wma_freqs"
2112 wmav2_decoder_select="mdct sinewin wma_freqs"
2113 wmav2_encoder_select="mdct sinewin wma_freqs"
2114 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2115 wmv1_decoder_select="h263_decoder"
2116 wmv1_encoder_select="h263_encoder"
2117 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2118 wmv2_encoder_select="h263_encoder wmv2dsp"
2119 wmv3_decoder_select="vc1_decoder"
2120 wmv3image_decoder_select="wmv3_decoder"
2121 zerocodec_decoder_deps="zlib"
2122 zlib_decoder_deps="zlib"
2123 zlib_encoder_deps="zlib"
2124 zmbv_decoder_deps="zlib"
2125 zmbv_encoder_deps="zlib"
2126
2127 # hardware accelerators
2128 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2129 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2130 vaapi_deps="va_va_h"
2131 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2132 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2133 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2134
2135 h263_vaapi_hwaccel_deps="vaapi"
2136 h263_vaapi_hwaccel_select="h263_decoder"
2137 h264_d3d11va_hwaccel_deps="d3d11va"
2138 h264_d3d11va_hwaccel_select="h264_decoder"
2139 h264_dxva2_hwaccel_deps="dxva2"
2140 h264_dxva2_hwaccel_select="h264_decoder"
2141 h264_mmal_decoder_deps="mmal"
2142 h264_mmal_decoder_select="mmal"
2143 h264_mmal_hwaccel_deps="mmal"
2144 h264_omx_encoder_deps="omx"
2145 h264_qsv_hwaccel_deps="libmfx"
2146 h264_vaapi_hwaccel_deps="vaapi"
2147 h264_vaapi_hwaccel_select="h264_decoder"
2148 h264_vda_hwaccel_deps="vda"
2149 h264_vda_hwaccel_select="h264_decoder"
2150 h264_vda_old_hwaccel_deps="vda"
2151 h264_vda_old_hwaccel_select="h264_decoder"
2152 h264_vdpau_hwaccel_deps="vdpau"
2153 h264_vdpau_hwaccel_select="h264_decoder"
2154 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2155 hevc_d3d11va_hwaccel_select="hevc_decoder"
2156 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2157 hevc_dxva2_hwaccel_select="hevc_decoder"
2158 hevc_qsv_hwaccel_deps="libmfx"
2159 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2160 hevc_vdpau_hwaccel_select="hevc_decoder"
2161 mpeg1_vdpau_hwaccel_deps="vdpau"
2162 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2163 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2164 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2165 mpeg2_dxva2_hwaccel_deps="dxva2"
2166 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2167 mpeg2_mmal_decoder_deps="mmal"
2168 mpeg2_mmal_decoder_select="mmal"
2169 mpeg2_mmal_hwaccel_deps="mmal"
2170 mpeg2_qsv_hwaccel_deps="libmfx"
2171 mpeg2_vaapi_hwaccel_deps="vaapi"
2172 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2173 mpeg2_vdpau_hwaccel_deps="vdpau"
2174 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2175 mpeg4_omx_encoder_deps="omx"
2176 mpeg4_vaapi_hwaccel_deps="vaapi"
2177 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2178 mpeg4_vdpau_hwaccel_deps="vdpau"
2179 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2180 vc1_d3d11va_hwaccel_deps="d3d11va"
2181 vc1_d3d11va_hwaccel_select="vc1_decoder"
2182 vc1_dxva2_hwaccel_deps="dxva2"
2183 vc1_dxva2_hwaccel_select="vc1_decoder"
2184 vc1_mmal_decoder_deps="mmal"
2185 vc1_mmal_decoder_select="mmal"
2186 vc1_mmal_hwaccel_deps="mmal"
2187 vc1_qsv_hwaccel_deps="libmfx"
2188 vc1_vaapi_hwaccel_deps="vaapi"
2189 vc1_vaapi_hwaccel_select="vc1_decoder"
2190 vc1_vdpau_hwaccel_deps="vdpau"
2191 vc1_vdpau_hwaccel_select="vc1_decoder"
2192 vp8_qsv_hwaccel_deps="libmfx"
2193 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2194 vp8_vaapi_hwaccel_select="vp8_decoder"
2195 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2196 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2197 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2198 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2199
2200 # hardware-accelerated codecs
2201 nvenc_deps_any="dlopen LoadLibrary"
2202 nvenc_extralibs='$ldl'
2203 omx_deps="dlopen pthreads"
2204 omx_extralibs='$ldl'
2205 qsvdec_select="qsv"
2206 qsvenc_select="qsv"
2207 vaapi_encode_deps="vaapi"
2208
2209 hwupload_cuda_filter_deps="cuda"
2210 scale_npp_filter_deps="cuda libnpp"
2211
2212 h264_nvenc_encoder_deps="nvenc"
2213 h264_qsv_decoder_deps="libmfx"
2214 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2215 h264_qsv_encoder_deps="libmfx"
2216 h264_qsv_encoder_select="qsvenc"
2217 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2218 h264_vaapi_encoder_select="vaapi_encode golomb"
2219
2220 hevc_nvenc_encoder_deps="nvenc"
2221 hevc_qsv_decoder_deps="libmfx"
2222 hevc_qsv_encoder_deps="libmfx"
2223 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2224 hevc_qsv_encoder_select="qsvenc"
2225 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2226 hevc_vaapi_encoder_select="vaapi_encode golomb"
2227 mpeg2_qsv_decoder_deps="libmfx"
2228 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2229 mpeg2_qsv_encoder_deps="libmfx"
2230 mpeg2_qsv_encoder_select="qsvenc"
2231 vc1_qsv_decoder_deps="libmfx"
2232 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2233 vp8_qsv_decoder_deps="libmfx"
2234 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2235
2236 nvenc_h264_encoder_deps="nvenc"
2237 nvenc_hevc_encoder_deps="nvenc"
2238
2239 # parsers
2240 h264_parser_select="golomb h264dsp h264parse"
2241 hevc_parser_select="golomb"
2242 mpegvideo_parser_select="mpegvideo"
2243 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2244 vc1_parser_select="vc1dsp"
2245
2246 # bitstream_filters
2247 mjpeg2jpeg_bsf_select="jpegtables"
2248
2249 # external libraries
2250 libdcadec_decoder_deps="libdcadec"
2251 libfaac_encoder_deps="libfaac"
2252 libfaac_encoder_select="audio_frame_queue"
2253 libfdk_aac_decoder_deps="libfdk_aac"
2254 libfdk_aac_encoder_deps="libfdk_aac"
2255 libfdk_aac_encoder_select="audio_frame_queue"
2256 libgsm_decoder_deps="libgsm"
2257 libgsm_encoder_deps="libgsm"
2258 libgsm_ms_decoder_deps="libgsm"
2259 libgsm_ms_encoder_deps="libgsm"
2260 libilbc_decoder_deps="libilbc"
2261 libilbc_encoder_deps="libilbc"
2262 libkvazaar_encoder_deps="libkvazaar"
2263 libmp3lame_encoder_deps="libmp3lame"
2264 libmp3lame_encoder_select="audio_frame_queue"
2265 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2266 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2267 libopencore_amrnb_encoder_select="audio_frame_queue"
2268 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2269 libopenh264_decoder_deps="libopenh264"
2270 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2271 libopenh264_encoder_deps="libopenh264"
2272 libopenjpeg_decoder_deps="libopenjpeg"
2273 libopenjpeg_encoder_deps="libopenjpeg"
2274 libopus_decoder_deps="libopus"
2275 libopus_encoder_deps="libopus"
2276 libopus_encoder_select="audio_frame_queue"
2277 libschroedinger_decoder_deps="libschroedinger"
2278 libschroedinger_encoder_deps="libschroedinger"
2279 libspeex_decoder_deps="libspeex"
2280 libspeex_encoder_deps="libspeex"
2281 libspeex_encoder_select="audio_frame_queue"
2282 libtheora_encoder_deps="libtheora"
2283 libtwolame_encoder_deps="libtwolame"
2284 libvo_aacenc_encoder_deps="libvo_aacenc"
2285 libvo_aacenc_encoder_select="audio_frame_queue"
2286 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2287 libvorbis_encoder_deps="libvorbis"
2288 libvorbis_encoder_select="audio_frame_queue"
2289 libvpx_vp8_decoder_deps="libvpx"
2290 libvpx_vp8_encoder_deps="libvpx"
2291 libvpx_vp9_decoder_deps="libvpx"
2292 libvpx_vp9_encoder_deps="libvpx"
2293 libwavpack_encoder_deps="libwavpack"
2294 libwebp_encoder_deps="libwebp"
2295 libx262_encoder_deps="libx262"
2296 libx264_encoder_deps="libx264"
2297 libx265_encoder_deps="libx265"
2298 libxavs_encoder_deps="libxavs"
2299 libxvid_encoder_deps="libxvid mkstemp"
2300
2301 # demuxers / muxers
2302 ac3_demuxer_select="ac3_parser"
2303 asf_demuxer_select="riffdec"
2304 asf_muxer_select="riffenc"
2305 asf_stream_muxer_select="asf_muxer"
2306 avi_demuxer_select="iso_media riffdec"
2307 avi_muxer_select="riffenc"
2308 avisynth_demuxer_deps="avisynth"
2309 avisynth_demuxer_select="riffdec"
2310 caf_demuxer_select="iso_media riffdec"
2311 dash_muxer_select="mp4_muxer"
2312 dirac_demuxer_select="dirac_parser"
2313 dv_demuxer_select="dvprofile"
2314 dv_muxer_select="dvprofile"
2315 dxa_demuxer_select="riffdec"
2316 eac3_demuxer_select="ac3_parser"
2317 f4v_muxer_select="mov_muxer"
2318 flac_demuxer_select="flac_parser"
2319 hds_muxer_select="flv_muxer"
2320 hls_muxer_select="mpegts_muxer"
2321 ipod_muxer_select="mov_muxer"
2322 ismv_muxer_select="mov_muxer"
2323 matroska_audio_muxer_select="matroska_muxer"
2324 matroska_demuxer_select="iso_media riffdec"
2325 matroska_demuxer_suggest="bzlib lzo zlib"
2326 matroska_muxer_select="iso_media riffenc"
2327 mmf_muxer_select="riffenc"
2328 mov_demuxer_select="iso_media riffdec"
2329 mov_demuxer_suggest="zlib"
2330 mov_muxer_select="iso_media riffenc rtpenc_chain"
2331 mp3_demuxer_select="mpegaudio_parser"
2332 mp4_muxer_select="mov_muxer"
2333 mpegts_demuxer_select="iso_media"
2334 mpegts_muxer_select="adts_muxer latm_muxer"
2335 mpegtsraw_demuxer_select="mpegts_demuxer"
2336 mxf_d10_muxer_select="mxf_muxer"
2337 nut_muxer_select="riffenc"
2338 nuv_demuxer_select="riffdec"
2339 oga_muxer_select="ogg_muxer"
2340 ogg_demuxer_select="dirac_parse"
2341 opus_muxer_select="ogg_muxer"
2342 psp_muxer_select="mov_muxer"
2343 rtp_demuxer_select="sdp_demuxer"
2344 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2345 rtsp_demuxer_select="http_protocol rtpdec"
2346 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2347 sap_demuxer_select="sdp_demuxer"
2348 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2349 sdp_demuxer_select="rtpdec"
2350 smoothstreaming_muxer_select="ismv_muxer"
2351 spdif_muxer_select="aac_parser"
2352 spx_muxer_select="ogg_muxer"
2353 swf_demuxer_suggest="zlib"
2354 tak_demuxer_select="tak_parser"
2355 tg2_muxer_select="mov_muxer"
2356 tgp_muxer_select="mov_muxer"
2357 w64_demuxer_select="wav_demuxer"
2358 wav_demuxer_select="riffdec"
2359 wav_muxer_select="riffenc"
2360 webm_muxer_select="iso_media riffenc"
2361 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2362 wtv_demuxer_select="mpegts_demuxer riffdec"
2363 xmv_demuxer_select="riffdec"
2364 xwma_demuxer_select="riffdec"
2365
2366 # indevs / outdevs
2367 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2368 alsa_outdev_deps="alsa_asoundlib_h"
2369 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2370 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2371 dv1394_indev_deps="dv1394"
2372 dv1394_indev_select="dv_demuxer"
2373 fbdev_indev_deps="linux_fb_h"
2374 jack_indev_deps="jack_jack_h"
2375 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2376 libcdio_indev_deps="libcdio"
2377 libdc1394_indev_deps="libdc1394"
2378 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2379 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2380 pulse_indev_deps="libpulse"
2381 sndio_indev_deps="sndio_h"
2382 sndio_outdev_deps="sndio_h"
2383 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2384 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2385 vfwcap_indev_extralibs="-lavicap32"
2386 xcbgrab_indev_deps="libxcb"
2387
2388 # protocols
2389 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2390 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2391 ffrtmpcrypt_protocol_select="tcp_protocol"
2392 ffrtmphttp_protocol_deps="!librtmp_protocol"
2393 ffrtmphttp_protocol_select="http_protocol"
2394 gopher_protocol_select="network"
2395 http_protocol_select="tcp_protocol"
2396 httpproxy_protocol_select="tcp_protocol"
2397 https_protocol_select="tls_protocol"
2398 icecast_protocol_select="http_protocol"
2399 librtmp_protocol_deps="librtmp"
2400 librtmpe_protocol_deps="librtmp"
2401 librtmps_protocol_deps="librtmp"
2402 librtmpt_protocol_deps="librtmp"
2403 librtmpte_protocol_deps="librtmp"
2404 mmsh_protocol_select="http_protocol"
2405 mmst_protocol_select="network"
2406 rtmp_protocol_deps="!librtmp_protocol"
2407 rtmp_protocol_select="tcp_protocol"
2408 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2409 rtmps_protocol_deps="!librtmp_protocol"
2410 rtmps_protocol_select="tls_protocol"
2411 rtmpt_protocol_select="ffrtmphttp_protocol"
2412 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2413 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2414 rtp_protocol_select="udp_protocol"
2415 sctp_protocol_deps="struct_sctp_event_subscribe"
2416 sctp_protocol_select="network"
2417 srtp_protocol_select="rtp_protocol srtp"
2418 tcp_protocol_select="network"
2419 tls_gnutls_protocol_deps="gnutls"
2420 tls_gnutls_protocol_select="tcp_protocol"
2421 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2422 tls_openssl_protocol_select="tcp_protocol"
2423 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2424 udp_protocol_select="network"
2425 unix_protocol_deps="sys_un_h"
2426 unix_protocol_select="network"
2427
2428 # filters
2429 blackframe_filter_deps="gpl"
2430 boxblur_filter_deps="gpl"
2431 bs2b_filter_deps="libbs2b"
2432 cropdetect_filter_deps="gpl"
2433 deinterlace_qsv_filter_deps="libmfx"
2434 delogo_filter_deps="gpl"
2435 drawtext_filter_deps="libfreetype"
2436 frei0r_filter_deps="frei0r dlopen"
2437 frei0r_filter_extralibs='$ldl'
2438 frei0r_src_filter_deps="frei0r dlopen"
2439 frei0r_src_filter_extralibs='$ldl'
2440 hdcd_filter_deps="libhdcd"
2441 hqdn3d_filter_deps="gpl"
2442 interlace_filter_deps="gpl"
2443 ocv_filter_deps="libopencv"
2444 resample_filter_deps="avresample"
2445 scale_filter_deps="swscale"
2446 scale_qsv_filter_deps="libmfx"
2447 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2448
2449 # examples
2450 decode_audio_example_deps="avcodec avutil"
2451 decode_video_example_deps="avcodec avutil"
2452 encode_audio_example_deps="avcodec avutil"
2453 encode_video_example_deps="avcodec avutil"
2454 filter_audio_example_deps="avfilter avutil"
2455 metadata_example_deps="avformat avutil"
2456 output_example_deps="avcodec avformat avutil swscale"
2457 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2458 transcode_aac_example_deps="avcodec avformat avresample"
2459
2460 # libraries, in linking order
2461 avcodec_deps="avutil"
2462 avdevice_deps="avformat avcodec avutil"
2463 avfilter_deps="avutil"
2464 avformat_deps="avcodec avutil"
2465 avresample_deps="avutil"
2466 swscale_deps="avutil"
2467
2468 # programs
2469 avconv_deps="avcodec avfilter avformat avresample swscale"
2470 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2471 fps_filter null_filter resample_filter scale_filter
2472 trim_filter"
2473 avplay_deps="avcodec avfilter avformat avresample sdl"
2474 avplay_libs='$sdl_libs'
2475 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2476 avprobe_deps="avcodec avformat"
2477
2478 # documentation
2479 pod2man_deps="doc"
2480 texi2html_deps="doc"
2481
2482 # default parameters
2483
2484 logfile="config.log"
2485
2486 # installation paths
2487 prefix_default="/usr/local"
2488 bindir_default='${prefix}/bin'
2489 datadir_default='${prefix}/share/avconv'
2490 docdir_default='${prefix}/share/doc/libav'
2491 incdir_default='${prefix}/include'
2492 libdir_default='${prefix}/lib'
2493 mandir_default='${prefix}/share/man'
2494 shlibdir_default="$libdir_default"
2495
2496 # toolchain
2497 ar_default="ar"
2498 cc_default="gcc"
2499 host_cc_default="gcc"
2500 cp_f="cp -f"
2501 ln_s="ln -s -f"
2502 nm_default="nm -g"
2503 objformat="elf"
2504 pkg_config_default=pkg-config
2505 ranlib="ranlib"
2506 strip="strip"
2507 version_script='--version-script'
2508 yasmexe="yasm"
2509
2510 # machine
2511 arch_default=$(uname -m)
2512 cpu="generic"
2513 intrinsics="none"
2514
2515 # OS
2516 target_os_default=$(tolower $(uname -s))
2517 host_os=$target_os_default
2518
2519 # configurable options
2520 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2521
2522 enable asm
2523 enable debug
2524 enable doc
2525 enable faan faandct faanidct
2526 enable optimizations
2527 enable safe_bitstream_reader
2528 enable static
2529 enable swscale_alpha
2530 enable valgrind_backtrace
2531
2532 # By default, enable only those hwaccels that have no external dependencies.
2533 enable d3d11va dxva2 vda vdpau
2534
2535 # build settings
2536 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2537 LIBPREF="lib"
2538 LIBSUF=".a"
2539 FULLNAME='$(NAME)$(BUILDSUF)'
2540 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2541 SLIBPREF="lib"
2542 SLIBSUF=".so"
2543 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2544 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2545 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2546 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2547 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2548 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2549 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2550
2551 asflags_filter=echo
2552 cflags_filter=echo
2553 ldflags_filter=echo
2554
2555 AS_C='-c'
2556 AS_O='-o $@'
2557 CC_C='-c'
2558 CC_E='-E -o $@'
2559 CC_O='-o $@'
2560 OBJCC_C='-c'
2561 OBJCC_E='-E -o $@'
2562 OBJCC_O='-o $@'
2563 LD_O='-o $@'
2564 LD_LIB='-l%'
2565 LD_PATH='-L'
2566 HOSTCC_C='-c'
2567 HOSTCC_E='-E -o $@'
2568 HOSTCC_O='-o $@'
2569 HOSTLD_O='-o $@'
2570
2571 host_libs='-lm'
2572 host_cflags_filter=echo
2573 host_ldflags_filter=echo
2574
2575 target_path='$(CURDIR)'
2576
2577 # since the object filename is not given with the -MM flag, the compiler
2578 # is only able to print the basename, and we must add the path ourselves
2579 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2580 DEPFLAGS='-MM'
2581
2582 # find source path
2583 if test -f configure; then
2584 source_path=.
2585 else
2586 source_path=$(cd $(dirname "$0"); pwd)
2587 echo "$source_path" | grep -q '[[:blank:]]' &&
2588 die "Out of tree builds are impossible with whitespace in source path."
2589 test -e "$source_path/config.h" &&
2590 die "Out of tree builds are impossible with config.h in source dir."
2591 fi
2592
2593 for v in "$@"; do
2594 r=${v#*=}
2595 l=${v%"$r"}
2596 r=$(sh_quote "$r")
2597 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2598 done
2599
2600 find_things(){
2601 thing=$1
2602 pattern=$2
2603 file=$source_path/$3
2604 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2605 }
2606
2607 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2608 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2609 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2610 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2611 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2612 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2613 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2614 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2615 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2616
2617 find_things_extern(){
2618 thing=$1
2619 pattern=$2
2620 file=$source_path/$3
2621 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2622 }
2623
2624 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2625 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2626
2627 ALL_COMPONENTS="
2628 $BSF_LIST
2629 $DECODER_LIST
2630 $DEMUXER_LIST
2631 $ENCODER_LIST
2632 $FILTER_LIST
2633 $HWACCEL_LIST
2634 $INDEV_LIST
2635 $MUXER_LIST
2636 $OUTDEV_LIST
2637 $PARSER_LIST
2638 $PROTOCOL_LIST
2639 "
2640
2641 for n in $COMPONENT_LIST; do
2642 v=$(toupper ${n%s})_LIST
2643 eval enable \$$v
2644 eval ${n}_if_any="\$$v"
2645 done
2646
2647 enable $ARCH_EXT_LIST
2648
2649 die_unknown(){
2650 echo "Unknown option \"$1\"."
2651 echo "See $0 --help for available options."
2652 exit 1
2653 }
2654
2655 print_3_columns() {
2656 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2657 }
2658
2659 show_list() {
2660 suffix=_$1
2661 shift
2662 echo $* | sed s/$suffix//g | print_3_columns
2663 exit 0
2664 }
2665
2666 rand_list(){
2667 IFS=', '
2668 set -- $*
2669 unset IFS
2670 for thing; do
2671 comp=${thing%:*}
2672 prob=${thing#$comp}
2673 prob=${prob#:}
2674 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2675 echo "prob ${prob:-0.5}"
2676 printf '%s\n' $comp
2677 done
2678 }
2679
2680 do_random(){
2681 action=$1
2682 shift
2683 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2684 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2685 }
2686
2687 for opt do
2688 optval="${opt#*=}"
2689 case "$opt" in
2690 --extra-ldflags=*)
2691 add_ldflags $optval
2692 ;;
2693 --extra-ldexeflags=*)
2694 add_ldexeflags $optval
2695 ;;
2696 --extra-libs=*)
2697 add_extralibs $optval
2698 ;;
2699 --disable-devices)
2700 disable $INDEV_LIST $OUTDEV_LIST
2701 ;;
2702 --enable-debug=*)
2703 debuglevel="$optval"
2704 ;;
2705 --disable-programs)
2706 disable $PROGRAM_LIST
2707 ;;
2708 --disable-everything)
2709 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2710 ;;
2711 --disable-all)
2712 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2713 disable $LIBRARY_LIST $PROGRAM_LIST doc
2714 ;;
2715 --enable-random|--disable-random)
2716 action=${opt%%-random}
2717 do_random ${action#--} $COMPONENT_LIST
2718 ;;
2719 --enable-random=*|--disable-random=*)
2720 action=${opt%%-random=*}
2721 do_random ${action#--} $optval
2722 ;;
2723 --enable-*=*|--disable-*=*)
2724 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2725 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2726 eval list=\$$(toupper $thing)_LIST
2727 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2728 $action $(filter "$name" $list)
2729 ;;
2730 --enable-avserver|--disable-avserver*)
2731 warn "avserver has been removed, the ${opt} option is only"\
2732 "provided for compatibility and will be removed in the future"
2733 ;;
2734 --enable-?*|--disable-?*)
2735 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2736 if is_in $option $COMPONENT_LIST; then
2737 test $action = disable && action=unset
2738 eval $action \$$(toupper ${option%s})_LIST
2739 elif is_in $option $CMDLINE_SELECT; then
2740 $action $option
2741 else
2742 die_unknown $opt
2743 fi
2744 ;;
2745 --list-*)
2746 NAME="${opt#--list-}"
2747 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2748 NAME=${NAME%s}
2749 eval show_list $NAME \$$(toupper $NAME)_LIST
2750 ;;
2751 --help|-h) show_help
2752 ;;
2753 --quiet|-q) quiet=yes
2754 ;;
2755 *)
2756 optname="${opt%%=*}"
2757 optname="${optname#--}"
2758 optname=$(echo "$optname" | sed 's/-/_/g')
2759 if is_in $optname $CMDLINE_SET; then
2760 eval $optname='$optval'
2761 elif is_in $optname $CMDLINE_APPEND; then
2762 append $optname "$optval"
2763 else
2764 die_unknown $opt
2765 fi
2766 ;;
2767 esac
2768 done
2769
2770 for e in $env; do
2771 eval "export $e"
2772 done
2773
2774 disabled logging && logfile=/dev/null
2775
2776 # Die early if licensing-related configure options are incompatible.
2777 die_license_disabled() {
2778 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2779 }
2780
2781 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2782 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2783 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2784
2785 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2786
2787 # Disable all the library-specific components if the library itself
2788 # is disabled, see AVCODEC_LIST and following _LIST variables.
2789
2790 disable_components(){
2791 disabled ${1} && disable $(
2792 eval components="\$$(toupper ${1})_COMPONENTS"
2793 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2794 )
2795 }
2796
2797 map 'disable_components $v' $LIBRARY_LIST
2798
2799 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2800 set >> $logfile
2801
2802 case "$toolchain" in
2803 *-asan)
2804 cc_default="${toolchain%-asan}"
2805 add_cflags -fsanitize=address
2806 add_ldflags -fsanitize=address
2807 ;;
2808 *-msan)
2809 cc_default="${toolchain%-msan}"
2810 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2811 add_ldflags -fsanitize=memory
2812 ;;
2813 *-tsan)
2814 cc_default="${toolchain%-tsan}"
2815 add_cflags -fsanitize=thread -pie
2816 add_ldflags -fsanitize=thread -pie
2817 case "$toolchain" in
2818 gcc-tsan)
2819 add_cflags -fPIC
2820 add_ldflags -fPIC
2821 ;;
2822 esac
2823 ;;
2824 *-usan)
2825 cc_default="${toolchain%-usan}"
2826 add_cflags -fsanitize=undefined
2827 add_ldflags -fsanitize=undefined
2828 case "$toolchain" in
2829 clang-usan)
2830 add_cflags -O1
2831 ;;
2832 esac
2833 ;;
2834 valgrind-*)
2835 target_exec_default="valgrind"
2836 case "$toolchain" in
2837 valgrind-massif)
2838 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2839 ;;
2840 valgrind-memcheck)
2841 target_exec_args="--track-origins=yes --leak-check=full"
2842 ;;
2843 esac
2844 ;;
2845 msvc)
2846 # Check whether the current MSVC version needs the C99 converter.
2847 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2848 # support enough of C99 to build libav. Default to the new
2849 # behaviour if the regexp was unable to match anything, since this
2850 # successfully parses the version number of existing supported
2851 # versions that require the converter (MSVC 2010 and 2012).
2852 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2853 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2854 cc_default="cl"
2855 else
2856 cc_default="c99wrap cl"
2857 fi
2858 ld_default="$source_path/compat/windows/mslink"
2859 nm_default="dumpbin -symbols"
2860 ar_default="lib"
2861 case "$arch" in
2862 arm*)
2863 as_default="armasm"
2864 ;;
2865 esac
2866 target_os_default="win32"
2867 # Use a relative path for TMPDIR. This makes sure all the
2868 # ffconf temp files are written with a relative path, avoiding
2869 # issues with msys/win32 path conversion for MSVC parameters
2870 # such as -Fo<file> or -out:<file>.
2871 TMPDIR=.
2872 ;;
2873 icl)
2874 cc_default="icl"
2875 ld_default="xilink"
2876 nm_default="dumpbin -symbols"
2877 ar_default="xilib"
2878 target_os_default="win32"
2879 TMPDIR=.
2880 ;;
2881 gcov)
2882 add_cflags -fprofile-arcs -ftest-coverage
2883 add_ldflags -fprofile-arcs -ftest-coverage
2884 ;;
2885 llvm-cov)
2886 add_cflags -fprofile-arcs -ftest-coverage
2887 add_ldflags --coverage
2888 ;;
2889 hardened)
2890 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2891 add_cflags -fno-strict-overflow -fstack-protector-all
2892 add_ldflags -Wl,-z,relro -Wl,-z,now
2893 ;;
2894 ?*)
2895 die "Unknown toolchain $toolchain"
2896 ;;
2897 esac
2898
2899 test -n "$cross_prefix" && enable cross_compile
2900
2901 if enabled cross_compile; then
2902 test -n "$arch" && test -n "$target_os" ||
2903 die "Must specify target arch and OS when cross-compiling"
2904 fi
2905
2906 ar_default="${cross_prefix}${ar_default}"
2907 cc_default="${cross_prefix}${cc_default}"
2908 occ_default="${cross_prefix}${occ_default}"
2909 nm_default="${cross_prefix}${nm_default}"
2910 pkg_config_default="${cross_prefix}${pkg_config_default}"
2911 ranlib="${cross_prefix}${ranlib}"
2912 strip="${cross_prefix}${strip}"
2913
2914 sysinclude_default="${sysroot}/usr/include"
2915
2916 set_default arch cc pkg_config sysinclude target_exec target_os
2917 enabled cross_compile || host_cc_default=$cc
2918 set_default host_cc
2919
2920 if ! $pkg_config --version >/dev/null 2>&1; then
2921 warn "$pkg_config not found, library detection may fail."
2922 pkg_config=false
2923 fi
2924
2925 exesuf() {
2926 case $1 in
2927 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2928 esac
2929 }
2930
2931 EXESUF=$(exesuf $target_os)
2932 HOSTEXESUF=$(exesuf $host_os)
2933
2934 # set temporary file name
2935 : ${TMPDIR:=$TEMPDIR}
2936 : ${TMPDIR:=$TMP}
2937 : ${TMPDIR:=/tmp}
2938
2939 if ! check_cmd mktemp -u XXXXXX; then
2940 # simple replacement for missing mktemp
2941 # NOT SAFE FOR GENERAL USE
2942 mktemp(){
2943 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2944 }
2945 fi
2946
2947 tmpfile(){
2948 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2949 (set -C; exec > $tmp) 2>/dev/null ||
2950 die "Unable to create temporary file in $TMPDIR."
2951 append TMPFILES $tmp
2952 eval $1=$tmp
2953 }
2954
2955 trap 'rm -f -- $TMPFILES' EXIT
2956
2957 tmpfile TMPASM .asm
2958 tmpfile TMPC .c
2959 tmpfile TMPE $EXESUF
2960 tmpfile TMPH .h
2961 tmpfile TMPO .o
2962 tmpfile TMPS .S
2963 tmpfile TMPSH .sh
2964 tmpfile TMPV .ver
2965
2966 unset -f mktemp
2967
2968 chmod +x $TMPE
2969
2970 # make sure we can execute files in $TMPDIR
2971 cat > $TMPSH 2>> $logfile <<EOF
2972 #! /bin/sh
2973 EOF
2974 chmod +x $TMPSH >> $logfile 2>&1
2975 if ! $TMPSH >> $logfile 2>&1; then
2976 cat <<EOF
2977 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2978 variable to another directory and make sure that it is not mounted noexec.
2979 EOF
2980 die "Sanity test failed."
2981 fi
2982
2983 armasm_flags(){
2984 for flag; do
2985 case $flag in
2986 # Filter out MSVC cl.exe options from cflags that shouldn't
2987 # be passed to gas-preprocessor
2988 -M[TD]*) ;;
2989 *) echo $flag ;;
2990 esac
2991 done
2992 }
2993
2994 ccc_flags(){
2995 for flag; do
2996 case $flag in
2997 -std=c99) echo -c99 ;;
2998 -mcpu=*) echo -arch ${flag#*=} ;;
2999 -mieee) echo -ieee ;;
3000 -O*|-fast) echo $flag ;;
3001 -fno-math-errno) echo -assume nomath_errno ;;
3002 -g) echo -g3 ;;
3003 -Wall) echo -msg_enable level2 ;;
3004 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3005 -Wl,*) echo $flag ;;
3006 -f*|-W*) ;;
3007 *) echo $flag ;;
3008 esac
3009 done
3010 }
3011
3012 cparser_flags(){
3013 for flag; do
3014 case $flag in
3015 -Wno-switch) echo -Wno-switch-enum ;;
3016 -Wno-format-zero-length) ;;
3017 -Wdisabled-optimization) ;;
3018 -Wno-pointer-sign) echo -Wno-other ;;
3019 *) echo $flag ;;
3020 esac
3021 done
3022 }
3023
3024 msvc_common_flags(){
3025 for flag; do
3026 case $flag in
3027 # In addition to specifying certain flags under the compiler
3028 # specific filters, they must be specified here as well or else the
3029 # generic catch all at the bottom will print the original flag.
3030 -Wall) ;;
3031 -std=c99) ;;
3032 # Common flags
3033 -fomit-frame-pointer) ;;
3034 -g) echo -Z7 ;;
3035 -fno-math-errno) ;;
3036 -fno-common) ;;
3037 -fno-signed-zeros) ;;
3038 -fPIC) ;;
3039 -mthumb) ;;
3040 -march=*) ;;
3041 -lz) echo zlib.lib ;;
3042 -lavifil32) echo vfw32.lib ;;
3043 -lavicap32) echo vfw32.lib user32.lib ;;
3044 -lx264) echo libx264.lib ;;
3045 -l*) echo ${flag#-l}.lib ;;
3046 -L*) echo -libpath:${flag#-L} ;;
3047 *) echo $flag ;;
3048 esac
3049 done
3050 }
3051
3052 msvc_flags(){
3053 msvc_common_flags "$@"
3054 for flag; do
3055 case $flag in
3056 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3057 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3058 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3059 -wd4273 -wd4554 -wd4701 ;;
3060 esac
3061 done
3062 }
3063
3064 icl_flags(){
3065 msvc_common_flags "$@"
3066 for flag; do
3067 case $flag in
3068 # Despite what Intel's documentation says -Wall, which is supported
3069 # on Windows, does enable remarks so disable them here.
3070 -Wall) echo $flag -Qdiag-disable:remark ;;
3071 -std=c99) echo -Qstd=c99 ;;
3072 esac
3073 done
3074 }
3075
3076 pgi_flags(){
3077 for flag; do
3078 case $flag in
3079 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3080 -fomit-frame-pointer) echo -Mnoframe ;;
3081 -g) echo -gopt ;;
3082 *) echo $flag ;;
3083 esac
3084 done
3085 }
3086
3087 suncc_flags(){
3088 for flag; do
3089 case $flag in
3090 -march=*|-mcpu=*)
3091 case "${flag#*=}" in
3092 native) echo -xtarget=native ;;
3093 v9|niagara) echo -xarch=sparc ;;
3094 ultrasparc) echo -xarch=sparcvis ;;
3095 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3096 i586|pentium) echo -xchip=pentium ;;
3097 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3098 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3099 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3100 pentium4*) echo -xtarget=pentium4 ;;
3101 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3102 *-sse3) echo -xarch=sse3 ;;
3103 core2) echo -xarch=ssse3 -xchip=core2 ;;
3104 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3105 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3106 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3107 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3108 k8|opteron|athlon64|athlon-fx)
3109 echo -xarch=sse2a ;;
3110 athlon*) echo -xarch=pentium_proa ;;
3111 esac
3112 ;;
3113 -std=c99) echo -xc99 ;;
3114 -fomit-frame-pointer) echo -xregs=frameptr ;;
3115 -fPIC) echo -KPIC -xcode=pic32 ;;
3116 -W*,*) echo $flag ;;
3117 -f*-*|-W*|-mimpure-text) ;;
3118 -shared) echo -G ;;
3119 *) echo $flag ;;
3120 esac
3121 done
3122 }
3123
3124 tms470_flags(){
3125 for flag; do
3126 case $flag in
3127 -march=*|-mcpu=*)
3128 case "${flag#*=}" in
3129 armv7-a|cortex-a*) echo -mv=7a8 ;;
3130 armv7-r|cortex-r*) echo -mv=7r4 ;;
3131 armv7-m|cortex-m*) echo -mv=7m3 ;;
3132 armv6*|arm11*) echo -mv=6 ;;
3133 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3134 echo -mv=5e ;;
3135 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3136 esac
3137 ;;
3138 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3139 -mfpu=vfp) echo --float_support=vfpv2 ;;
3140 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3141 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3142 -msoft-float) echo --float_support=vfplib ;;
3143 -O[0-3]|-mf=*) echo $flag ;;
3144 -g) echo -g -mn ;;
3145 -pds=*) echo $flag ;;
3146 -D*|-I*) echo $flag ;;
3147 --gcc|--abi=*) echo $flag ;;
3148 -me) echo $flag ;;
3149 esac
3150 done
3151 }
3152
3153 probe_cc(){
3154 pfx=$1
3155 _cc=$2
3156
3157 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3158 unset _ld_o _ldflags _ld_lib _ld_path
3159 unset _depflags _DEPCMD _DEPFLAGS
3160 _flags_filter=echo
3161
3162 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3163 _type=llvm_gcc
3164 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3165 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3166 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3167 _cflags_speed='-O3'
3168 _cflags_size='-Os'
3169 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3170 _type=gcc
3171 gcc_version=$($_cc --version | head -n1)
3172 gcc_basever=$($_cc -dumpversion)
3173 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3174 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3175 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3176 if ! $_cc -dumpversion | grep -q '^2\.'; then
3177 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3178 fi
3179 _cflags_speed='-O3'
3180 _cflags_size='-Os'
3181 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3182 _type=icc
3183 _ident=$($_cc --version | head -n1)
3184 _depflags='-MMD'
3185 _cflags_speed='-O3'
3186 _cflags_size='-Os'
3187 _cflags_noopt='-O1'
3188 elif $_cc -v 2>&1 | grep -q xlc; then
3189 _type=xlc
3190 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3191 _cflags_speed='-O5'
3192 _cflags_size='-O5 -qcompact'
3193 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3194 _type=ccc
3195 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3196 _DEPFLAGS='-M'
3197 _cflags_speed='-fast'
3198 _cflags_size='-O1'
3199 _flags_filter=ccc_flags
3200 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3201 test -d "$sysroot" || die "No valid sysroot specified."
3202 _type=armcc
3203 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3204 armcc_conf="$PWD/armcc.conf"
3205 $_cc --arm_linux_configure \
3206 --arm_linux_config_file="$armcc_conf" \
3207 --configure_sysroot="$sysroot" \
3208 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3209 die "Error creating armcc configuration file."
3210 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3211 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3212 as_default="${cross_prefix}gcc"
3213 _depflags='-MMD'
3214 _cflags_speed='-O3'
3215 _cflags_size='-Os'
3216 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3217 _type=tms470
3218 _ident=$($_cc -version | head -n1 | tr -s ' ')
3219 _flags='--gcc --abi=eabi -me'
3220 _cc_e='-ppl -fe=$@'
3221 _cc_o='-fe=$@'
3222 _depflags='-ppa -ppd=$(@:.o=.d)'
3223 _cflags_speed='-O3 -mf=5'
3224 _cflags_size='-O3 -mf=2'
3225 _flags_filter=tms470_flags
3226 elif $_cc -v 2>&1 | grep -q clang; then
3227 _type=clang
3228 _ident=$($_cc --version 2>/dev/null | head -n1)
3229 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3230 _cflags_speed='-O3'
3231 _cflags_size='-Os'
3232 elif $_cc -V 2>&1 | grep -q Sun; then
3233 _type=suncc
3234 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3235 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3236 _DEPFLAGS='-xM1 -xc99'
3237 _ldflags='-std=c99'
3238 _cflags_speed='-O5'
3239 _cflags_size='-O5 -xspace'
3240 _flags_filter=suncc_flags
3241 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3242 _type=pathscale
3243 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3244 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3245 _cflags_speed='-O2'
3246 _cflags_size='-Os'
3247 _flags_filter='filter_out -Wdisabled-optimization'
3248 elif $_cc -v 2>&1 | grep -q Open64; then
3249 _type=open64
3250 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3251 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3252 _cflags_speed='-O2'
3253 _cflags_size='-Os'
3254 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3255 elif $_cc -V 2>&1 | grep -q Portland; then
3256 _type=pgi
3257 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3258 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3259 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3260 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3261 _cflags_noopt="-O1"
3262 _flags_filter=pgi_flags
3263 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3264 _type=armasm
3265 _ident=$($_cc | head -n1)
3266 # 4509: "This form of conditional instruction is deprecated"
3267 _flags="-nologo -ignore 4509"
3268 _flags_filter=armasm_flags
3269 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3270 _type=msvc
3271 _ident=$($_cc 2>&1 | head -n1)
3272 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3273 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3274 _cflags_speed="-O2"
3275 _cflags_size="-O1"
3276 if $_cc -nologo- 2>&1 | grep -q Linker; then
3277 _ld_o='-out:$@'
3278 else
3279 _ld_o='-Fe$@'
3280 fi
3281 _cc_o='-Fo$@'
3282 _cc_e='-P -Fi$@'
3283 _flags_filter=msvc_flags
3284 _ld_lib='lib%.a'
3285 _ld_path='-libpath:'
3286 _flags='-nologo'
3287 elif $_cc 2>&1 | grep -q Intel; then
3288 _type=icl
3289 _ident=$($_cc 2>&1 | head -n1)
3290 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3291 # Not only is O3 broken on 13.x+ but it is slower on all previous
3292 # versions (tested) as well.
3293 _cflags_speed="-O2"
3294 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3295 if $_cc 2>&1 | grep -q Linker; then
3296 _ld_o='-out:$@'
3297 else
3298 _ld_o='-Fe$@'
3299 fi
3300 _cc_o='-Fo$@'
3301 _cc_e='-P'
3302 _flags_filter=icl_flags
3303 _ld_lib='lib%.a'
3304 _ld_path='-libpath:'
3305 # -Qdiag-error to make icl error when seeing certain unknown arguments
3306 _flags='-nologo -Qdiag-error:4044,10157'
3307 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3308 # with MSVC which enables it by default.
3309 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3310 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3311 # lld can emulate multiple different linkers; in ms link.exe mode,
3312 # the -? parameter gives the help output which contains an identifyable
3313 # string, while it gives an error in other modes.
3314 _type=lld-link
3315 # The link.exe mode doesn't have a switch for getting the version,
3316 # but we can force it back to gnu mode and get the version from there.
3317 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3318 _ld_o='-out:$@'
3319 _flags_filter=msvc_flags
3320 _ld_lib='lib%.a'
3321 _ld_path='-libpath:'
3322 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3323 _type=cparser
3324 _ident=$($_cc --version | head -n1)
3325 _depflags='-MMD'
3326 _cflags_speed='-O4'
3327 _cflags_size='-O2'
3328 _flags_filter=cparser_flags
3329 fi
3330
3331 eval ${pfx}_type=\$_type
3332 eval ${pfx}_ident=\$_ident
3333 }
3334
3335 set_ccvars(){
3336 eval ${1}_C=\${_cc_c-\${${1}_C}}
3337 eval ${1}_E=\${_cc_e-\${${1}_E}}
3338 eval ${1}_O=\${_cc_o-\${${1}_O}}
3339
3340 if [ -n "$_depflags" ]; then
3341 eval ${1}_DEPFLAGS=\$_depflags
3342 else
3343 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3344 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3345 eval DEP${1}FLAGS=\$_flags
3346 fi
3347 }
3348
3349 probe_cc cc "$cc"
3350 cflags_filter=$_flags_filter
3351 cflags_speed=$_cflags_speed
3352 cflags_size=$_cflags_size
3353 cflags_noopt=$_cflags_noopt
3354 add_cflags $_flags $_cflags
3355 cc_ldflags=$_ldflags
3356 set_ccvars CC
3357
3358 probe_cc hostcc "$host_cc"
3359 host_cflags_filter=$_flags_filter
3360 add_host_cflags $_flags $_cflags
3361 set_ccvars HOSTCC
3362
3363 test -n "$cc_type" && enable $cc_type ||
3364 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3365
3366 : ${as_default:=$cc}
3367 : ${objcc_default:=$cc}
3368 : ${dep_cc_default:=$cc}
3369 : ${ld_default:=$cc}
3370 : ${host_ld_default:=$host_cc}
3371 set_default ar as objcc dep_cc ld host_ld
3372
3373 probe_cc as "$as"
3374 asflags_filter=$_flags_filter
3375 add_asflags $_flags $_cflags
3376 set_ccvars AS
3377
3378 probe_cc objcc "$objcc"
3379 objcflags_filter=$_flags_filter
3380 add_objcflags $_flags $_cflags
3381 set_ccvars OBJC
3382
3383 probe_cc ld "$ld"
3384 ldflags_filter=$_flags_filter
3385 add_ldflags $_flags $_ldflags
3386 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3387 LD_O=${_ld_o-$LD_O}
3388 LD_LIB=${_ld_lib-$LD_LIB}
3389 LD_PATH=${_ld_path-$LD_PATH}
3390
3391 probe_cc hostld "$host_ld"
3392 host_ldflags_filter=$_flags_filter
3393 add_host_ldflags $_flags $_ldflags
3394 HOSTLD_O=${_ld_o-$HOSTLD_O}
3395
3396 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3397 probe_cc depcc "$dep_cc"
3398 CCDEP=${_DEPCMD:-$DEPCMD}
3399 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3400 DEPCCFLAGS=$_flags
3401 fi
3402
3403 if $ar 2>&1 | grep -q Microsoft; then
3404 arflags="-nologo"
3405 ar_o='-out:$@'
3406 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3407 arflags="rq"
3408 ar_o='$@'
3409 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3410 arflags='-Xany -r -c'
3411 ar_o='$@'
3412 else
3413 arflags="rc"
3414 ar_o='$@'
3415 fi
3416
3417 add_cflags $extra_cflags
3418 add_objcflags $extra_objcflags
3419 add_asflags $extra_cflags
3420
3421 if test -n "$sysroot"; then
3422 case "$cc_type" in
3423 gcc|llvm_gcc|clang)
3424 add_cppflags --sysroot="$sysroot"
3425 add_ldflags --sysroot="$sysroot"
3426 ;;
3427 tms470)
3428 add_cppflags -I"$sysinclude"
3429 add_ldflags --sysroot="$sysroot"
3430 ;;
3431 esac
3432 fi
3433
3434 if test "$cpu" = host; then
3435 enabled cross_compile &&
3436 die "--cpu=host makes no sense when cross-compiling."
3437
3438 case "$cc_type" in
3439 gcc|llvm_gcc)
3440 check_native(){
3441 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3442 sed -n "/cc1.*$1=/{
3443 s/.*$1=\\([^ ]*\\).*/\\1/
3444 p
3445 q
3446 }" $TMPE
3447 }
3448 cpu=$(check_native -march || check_native -mcpu)
3449 ;;
3450 esac
3451
3452 test "${cpu:-host}" = host &&
3453 die "--cpu=host not supported with compiler $cc"
3454 fi
3455
3456 # Deal with common $arch aliases
3457 case "$arch" in
3458 aarch64|arm64)
3459 arch="aarch64"
3460 ;;
3461 arm*)
3462 arch="arm"
3463 ;;
3464 mips*|IP*)
3465 case "$arch" in
3466 *el)
3467 add_cppflags -EL
3468 add_ldflags -EL
3469 ;;
3470 *eb)
3471 add_cppflags -EB
3472 add_ldflags -EB
3473 ;;
3474 esac
3475 arch="mips"
3476 ;;
3477 parisc*|hppa*)
3478 arch="parisc"
3479 ;;
3480 "Power Macintosh"|ppc*|powerpc*)
3481 arch="ppc"
3482 ;;
3483 s390|s390x)
3484 arch="s390"
3485 ;;
3486 sh4|sh)
3487 arch="sh4"
3488 ;;
3489 sun4u|sparc*)
3490 arch="sparc"
3491 ;;
3492 tilegx|tile-gx)
3493 arch="tilegx"
3494 ;;
3495 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3496 arch="x86"
3497 ;;
3498 esac
3499
3500 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3501 enable $arch
3502
3503 # Add processor-specific flags
3504 if enabled aarch64; then
3505
3506 case $cpu in
3507 armv*)
3508 cpuflags="-march=$cpu"
3509 ;;
3510 *)
3511 cpuflags="-mcpu=$cpu"
3512 ;;
3513 esac
3514
3515 elif enabled alpha; then
3516
3517 cpuflags="-mcpu=$cpu"
3518
3519 elif enabled arm; then
3520
3521 check_arm_arch() {
3522 check_cpp_condition stddef.h \
3523 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3524 $cpuflags
3525 }
3526
3527 probe_arm_arch() {
3528 if check_arm_arch 4; then echo armv4
3529 elif check_arm_arch 4T; then echo armv4t
3530 elif check_arm_arch 5; then echo armv5
3531 elif check_arm_arch 5E; then echo armv5e
3532 elif check_arm_arch 5T; then echo armv5t
3533 elif check_arm_arch 5TE; then echo armv5te
3534 elif check_arm_arch 5TEJ; then echo armv5te
3535 elif check_arm_arch 6; then echo armv6
3536 elif check_arm_arch 6J; then echo armv6j
3537 elif check_arm_arch 6K; then echo armv6k
3538 elif check_arm_arch 6Z; then echo armv6z
3539 elif check_arm_arch 6ZK; then echo armv6zk
3540 elif check_arm_arch 6T2; then echo armv6t2
3541 elif check_arm_arch 7; then echo armv7
3542 elif check_arm_arch 7A 7_A; then echo armv7-a
3543 elif check_arm_arch 7S; then echo armv7-a
3544 elif check_arm_arch 7R 7_R; then echo armv7-r
3545 elif check_arm_arch 7M 7_M; then echo armv7-m
3546 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3547 elif check_arm_arch 8A 8_A; then echo armv8-a
3548 fi
3549 }
3550
3551 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3552
3553 case $cpu in
3554 armv*)
3555 cpuflags="-march=$cpu"
3556 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3557 ;;
3558 *)
3559 cpuflags="-mcpu=$cpu"
3560 case $cpu in
3561 cortex-a*) subarch=armv7a ;;
3562 cortex-r*) subarch=armv7r ;;
3563 cortex-m*) enable thumb; subarch=armv7m ;;
3564 arm11*) subarch=armv6 ;;
3565 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3566 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3567 *) subarch=$(probe_arm_arch) ;;
3568 esac
3569 ;;
3570 esac
3571
3572 case "$subarch" in
3573 armv5t*) enable fast_clz ;;
3574 armv[6-8]*) enable fast_clz fast_unaligned ;;
3575 esac
3576
3577 elif enabled avr32; then
3578
3579 case $cpu in
3580 ap7[02]0[0-2])
3581 subarch="avr32_ap"
3582 cpuflags="-mpart=$cpu"
3583 ;;
3584 ap)
3585 subarch="avr32_ap"
3586 cpuflags="-march=$cpu"
3587 ;;
3588 uc3[ab]*)
3589 subarch="avr32_uc"
3590 cpuflags="-mcpu=$cpu"
3591 ;;
3592 uc)
3593 subarch="avr32_uc"
3594 cpuflags="-march=$cpu"
3595 ;;
3596 esac
3597
3598 elif enabled bfin; then
3599
3600 cpuflags="-mcpu=$cpu"
3601
3602 elif enabled mips; then
3603
3604 cpuflags="-march=$cpu"
3605
3606 elif enabled ppc; then
3607
3608 disable ldbrx
3609
3610 case $(tolower $cpu) in
3611 601|ppc601|powerpc601)
3612 cpuflags="-mcpu=601"
3613 disable altivec
3614 ;;
3615 603*|ppc603*|powerpc603*)
3616 cpuflags="-mcpu=603"
3617 disable altivec
3618 ;;
3619 604*|ppc604*|powerpc604*)
3620 cpuflags="-mcpu=604"
3621 disable altivec
3622 ;;
3623 g3|75*|ppc75*|powerpc75*)
3624 cpuflags="-mcpu=750"
3625 disable altivec
3626 ;;
3627 g4|745*|ppc745*|powerpc745*)
3628 cpuflags="-mcpu=7450"
3629 disable vsx
3630 ;;
3631 74*|ppc74*|powerpc74*)
3632 cpuflags="-mcpu=7400"
3633 disable vsx
3634 ;;
3635 g5|970|ppc970|powerpc970)
3636 cpuflags="-mcpu=970"
3637 disable vsx
3638 ;;
3639 power[3-6]*)
3640 cpuflags="-mcpu=$cpu"
3641 disable vsx
3642 ;;
3643 power[7-8]*)
3644 cpuflags="-mcpu=$cpu"
3645 enable ldbrx
3646 ;;
3647 cell)
3648 cpuflags="-mcpu=cell"
3649 enable ldbrx
3650 disable vsx
3651 ;;
3652 e500mc)
3653 cpuflags="-mcpu=e500mc"
3654 disable altivec
3655 ;;
3656 e500v2)
3657 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3658 disable altivec
3659 disable dcbzl
3660 ;;
3661 e500)
3662 cpuflags="-mcpu=8540 -mhard-float"
3663 disable altivec
3664 disable dcbzl
3665 ;;
3666 esac
3667
3668 elif enabled sparc; then
3669
3670 case $cpu in
3671 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3672 cpuflags="-mcpu=$cpu"
3673 ;;
3674 ultrasparc*|niagara[234])
3675 cpuflags="-mcpu=$cpu"
3676 ;;
3677 esac
3678
3679 elif enabled x86; then
3680
3681 case $cpu in
3682 i[345]86|pentium)
3683 cpuflags="-march=$cpu"
3684 disable i686
3685 disable mmx
3686 ;;
3687 # targets that do NOT support nopl and conditional mov (cmov)
3688 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3689 cpuflags="-march=$cpu"
3690 disable i686
3691 ;;
3692 # targets that do support nopl and conditional mov (cmov)
3693 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3694 cpuflags="-march=$cpu"
3695 enable i686
3696 enable fast_cmov
3697 ;;
3698 # targets that do support conditional mov but on which it's slow
3699 pentium4|pentium4m|prescott|nocona)
3700 cpuflags="-march=$cpu"
3701 enable i686
3702 disable fast_cmov
3703 ;;
3704 esac
3705
3706 fi
3707
3708 if [ "$cpu" != generic ]; then
3709 add_cflags $cpuflags
3710 add_asflags $cpuflags
3711 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3712 fi
3713
3714 # compiler sanity check
3715 check_exec <<EOF
3716 int main(void){ return 0; }
3717 EOF
3718 if test "$?" != 0; then
3719 echo "$cc is unable to create an executable file."
3720 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3721 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3722 echo "Only do this if you know what cross compiling means."
3723 fi
3724 die "C compiler test failed."
3725 fi
3726
3727 add_cppflags -D_ISOC99_SOURCE
3728
3729 # some compilers silently accept -std=c11, so we also need to check that the
3730 # version macro is defined properly
3731 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3732 add_cflags -std=c11
3733 else
3734 check_cflags -std=c99
3735 fi
3736
3737 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3738 #include <stdlib.h>
3739 EOF
3740 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3741 #include <stdlib.h>
3742 EOF
3743
3744 add_host_cppflags -D_ISOC99_SOURCE
3745 check_host_cflags -std=c99
3746 check_host_cflags -Wall
3747 check_host_cflags -O3
3748
3749 check_64bit(){
3750 arch32=$1
3751 arch64=$2
3752 expr=$3
3753 check_code cc "" "int test[2*($expr) - 1]" &&
3754 subarch=$arch64 || subarch=$arch32
3755 }
3756
3757 case "$arch" in
3758 aarch64|alpha|ia64)
3759 spic=$shared
3760 ;;
3761 mips)
3762 check_64bit mips mips64 '_MIPS_SIM > 1'
3763 spic=$shared
3764 ;;
3765 parisc)
3766 check_64bit parisc parisc64 'sizeof(void *) > 4'
3767 spic=$shared
3768 ;;
3769 ppc)
3770 check_64bit ppc ppc64 'sizeof(void *) > 4'
3771 spic=$shared
3772 ;;
3773 s390)
3774 check_64bit s390 s390x 'sizeof(void *) > 4'
3775 spic=$shared
3776 ;;
3777 sparc)
3778 check_64bit sparc sparc64 'sizeof(void *) > 4'
3779 spic=$shared
3780 ;;
3781 x86)
3782 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3783 if test "$subarch" = "x86_64"; then
3784 spic=$shared
3785 fi
3786 ;;
3787 esac
3788
3789 enable $subarch
3790 enabled spic && enable_weak pic
3791
3792 # OS specific
3793 case $target_os in
3794 aix)
3795 SHFLAGS=-shared
3796 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3797 enabled shared && add_ldflags -Wl,-brtl
3798 ;;
3799 android)
3800 disable symver
3801 enable section_data_rel_ro
3802 SLIB_INSTALL_NAME='$(SLIBNAME)'
3803 SLIB_INSTALL_LINKS=
3804 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3805 ;;
3806 haiku)
3807 prefix_default="/boot/common"
3808 network_extralibs="-lnetwork"
3809 host_libs=
3810 ;;
3811 sunos)
3812 SHFLAGS='-shared -Wl,-h,$$(@F)'
3813 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3814 network_extralibs="-lsocket -lnsl"
3815 # When using suncc to build, the Solaris linker will mark
3816 # an executable with each instruction set encountered by
3817 # the Solaris assembler. As our libraries contain their own
3818 # guards for processor-specific code, instead suppress
3819 # generation of the HWCAPS ELF section on Solaris x86 only.
3820 enabled_all suncc x86 &&
3821 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3822 add_ldflags -Wl,-M,mapfile
3823 nm_default='nm -P -g'
3824 version_script='-M'
3825 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3826 ;;
3827 netbsd)
3828 disable symver
3829 oss_indev_extralibs="-lossaudio"
3830 oss_outdev_extralibs="-lossaudio"
3831 ;;
3832 openbsd|bitrig)
3833 disable symver
3834 SHFLAGS='-shared'
3835 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3836 SLIB_INSTALL_LINKS=
3837 oss_indev_extralibs="-lossaudio"
3838 oss_outdev_extralibs="-lossaudio"
3839 ;;
3840 dragonfly)
3841 disable symver
3842 ;;
3843 freebsd)
3844 ;;
3845 bsd/os)
3846 add_extralibs -lpoll -lgnugetopt
3847 ;;
3848 darwin)
3849 enabled ppc && add_asflags -force_cpusubtype_ALL
3850 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3851 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3852 add_ldflags -Wl,-dynamic,-search_paths_first
3853 SLIBSUF=".dylib"
3854 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3855 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3856 objformat="macho"
3857 enabled x86_64 && objformat="macho64"
3858 enabled_any pic shared ||
3859 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3860 check_header dispatch/dispatch.h &&
3861 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3862 ;;
3863 msys*)
3864 die "Native MSYS builds are discouraged, please use the MINGW environment."
3865 ;;
3866 mingw32*|mingw64*)
3867 if test $target_os = "mingw32ce"; then
3868 disable network
3869 else
3870 target_os=mingw32
3871 fi
3872 LIBTARGET=i386
3873 if enabled x86_64; then
3874 LIBTARGET="i386:x86-64"
3875 elif enabled arm; then
3876 LIBTARGET=arm-wince
3877 fi
3878 check_ldflags -Wl,--nxcompat
3879 check_ldflags -Wl,--dynamicbase
3880 shlibdir_default="$bindir_default"
3881 SLIBPREF=""
3882 SLIBSUF=".dll"
3883 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3884 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3885 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3886 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3887 SLIB_INSTALL_LINKS=
3888 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3889 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3890 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3891 objformat="win32"
3892 dlltool="${cross_prefix}dlltool"
3893 ranlib=:
3894 enable dos_paths
3895 ;;
3896 win32|win64)
3897 disable symver
3898 if enabled shared; then
3899 # Link to the import library instead of the normal static library
3900 # for shared libs.
3901 LD_LIB='%.lib'
3902 # Cannot build both shared and static libs with MSVC or icl.
3903 disable static
3904 fi
3905 shlibdir_default="$bindir_default"
3906 SLIBPREF=""
3907 SLIBSUF=".dll"
3908 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3909 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3910 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3911 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3912 SLIB_INSTALL_LINKS=
3913 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3914 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3915 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3916 objformat="win32"
3917 ranlib=:
3918 enable dos_paths
3919 ;;
3920 cygwin*)
3921 target_os=cygwin
3922 shlibdir_default="$bindir_default"
3923 SLIBPREF="cyg"
3924 SLIBSUF=".dll"
3925 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3926 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3927 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3928 SLIB_INSTALL_LINKS=
3929 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3930 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3931 objformat="win32"
3932 enable dos_paths
3933 ;;
3934 *-dos|freedos|opendos)
3935 network_extralibs="-lsocket"
3936 objformat="coff"
3937 enable dos_paths
3938 add_cppflags -U__STRICT_ANSI__
3939 ;;
3940 linux)
3941 enable dv1394
3942 enable section_data_rel_ro
3943 ;;
3944 irix*)
3945 target_os=irix
3946 ranlib="echo ignoring ranlib"
3947 ;;
3948 os/2*)
3949 ln_s="cp -f"
3950 objformat="aout"
3951 add_cppflags -D_GNU_SOURCE
3952 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3953 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3954 LIBSUF="_s.a"
3955 SLIBPREF=""
3956 SLIBSUF=".dll"
3957 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3958 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3959 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3960 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3961 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3962 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3963 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3964 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3965 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3966 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3967 enable dos_paths
3968 ;;
3969 gnu/kfreebsd)
3970 add_cppflags -D_BSD_SOURCE
3971 ;;
3972 gnu)
3973 ;;
3974 qnx)
3975 add_cppflags -D_QNX_SOURCE
3976 network_extralibs="-lsocket"
3977 ;;
3978 symbian)
3979 SLIBSUF=".dll"
3980 enable dos_paths
3981 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3982 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3983 add_ldflags -Wl,--target1-abs,--no-undefined \
3984 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3985 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3986 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3987 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3988 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3989 ;;
3990 osf1)
3991 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3992 ;;
3993 minix)
3994 ;;
3995 plan9)
3996 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3997 -D_REENTRANT_SOURCE \
3998 -D_RESEARCH_SOURCE \
3999 -DFD_SETSIZE=96 \
4000 -DHAVE_SOCK_OPTS
4001 add_compat strtod.o strtod=avpriv_strtod
4002 network_extralibs='-lbsd'
4003 exeobjs=compat/plan9/main.o
4004 cp_f='cp'
4005 ;;
4006 none)
4007 ;;
4008 *)
4009 die "Unknown OS '$target_os'."
4010 ;;
4011 esac
4012
4013 # determine libc flavour
4014
4015 probe_libc(){
4016 pfx=$1
4017 pfx_no_=${pfx%_}
4018 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4019 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4020 eval ${pfx}libc_type=uclibc
4021 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4022 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4023 eval ${pfx}libc_type=glibc
4024 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4025 # MinGW headers can be installed on Cygwin, so check for newlib first.
4026 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4027 eval ${pfx}libc_type=newlib
4028 add_${pfx}cppflags -U__STRICT_ANSI__
4029 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4030 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4031 eval ${pfx}libc_type=mingw64
4032 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4033 eval test \$${pfx_no_}cc_type = "gcc" &&
4034 add_${pfx}cppflags -D__printf__=__gnu_printf__
4035 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4036 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4037 eval ${pfx}libc_type=mingw32
4038 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4039 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4040 die "ERROR: MinGW32 runtime version must be >= 3.15."
4041 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4042 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4043 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4044 eval test \$${pfx_no_}cc_type = "gcc" &&
4045 add_${pfx}cppflags -D__printf__=__gnu_printf__
4046 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4047 eval ${pfx}libc_type=msvcrt
4048 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4049 if [ "$pfx" = host_ ]; then
4050 add_host_cppflags -Dsnprintf=_snprintf
4051 else
4052 add_compat strtod.o strtod=avpriv_strtod
4053 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4054 _snprintf=avpriv_snprintf \
4055 vsnprintf=avpriv_vsnprintf
4056 fi
4057 fi
4058 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4059 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4060 # 0x601 by default unless something else is set by the user.
4061 # This can easily lead to us detecting functions only present
4062 # in such new versions and producing binaries requiring windows 7.0.
4063 # Therefore explicitly set the default to XP unless the user has
4064 # set something else on the command line.
4065 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4066 # family. For these cases, configure is free to use any functions
4067 # found in the SDK headers by default. (Alternatively, we could force
4068 # _WIN32_WINNT to 0x0602 in that case.)
4069 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4070 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4071 #ifdef WINAPI_FAMILY
4072 #include <winapifamily.h>
4073 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4074 #error not desktop
4075 #endif
4076 #endif
4077 EOF
4078 if [ "$pfx" = "" ]; then
4079 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4080 fi
4081 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4082 eval ${pfx}libc_type=klibc
4083 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4084 eval ${pfx}libc_type=bionic
4085 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4086 eval ${pfx}libc_type=solaris
4087 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4088 else
4089 eval ${pfx}libc_type=default
4090 add_${pfx}cppflags -D_DEFAULT_SOURCE
4091 fi
4092 }
4093
4094 probe_libc
4095 test -n "$libc_type" && enable libc_$libc_type
4096 probe_libc host_
4097 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4098
4099 case $libc_type in
4100 bionic)
4101 add_compat strtod.o strtod=avpriv_strtod
4102 ;;
4103 esac
4104
4105 # hacks for compiler/libc/os combinations
4106
4107 if enabled_all tms470 libc_glibc; then
4108 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4109 add_cppflags -D__USER_LABEL_PREFIX__=
4110 add_cppflags -D__builtin_memset=memset
4111 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4112 add_cflags -pds=48 # incompatible redefinition of macro
4113 fi
4114
4115 if enabled_all ccc libc_glibc; then
4116 add_ldflags -Wl,-z,now # calls to libots crash without this
4117 fi
4118
4119 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4120 add_cppflags '-I\$(SRC_PATH)/compat/float'
4121
4122 esc(){
4123 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4124 }
4125
4126 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4127
4128 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4129
4130 set_default $PATHS_LIST
4131 set_default nm
4132
4133 # we need to build at least one lib type
4134 if ! enabled_any static shared; then
4135 cat <<EOF
4136 At least one library type must be built.
4137 Specify --enable-static to build the static libraries or --enable-shared to
4138 build the shared libraries as well. To only build the shared libraries specify
4139 --disable-static in addition to --enable-shared.
4140 EOF
4141 exit 1
4142 fi
4143
4144 disabled optimizations || check_cflags -fomit-frame-pointer
4145
4146 enable_weak_pic() {
4147 disabled pic && return
4148 enable pic
4149 add_cppflags -DPIC
4150 case "$target_os" in
4151 mingw*|cygwin*)
4152 ;;
4153 *)
4154 add_cflags -fPIC
4155 ;;
4156 esac
4157 add_asflags -fPIC
4158 }
4159
4160 enabled pic && enable_weak_pic
4161
4162 check_cc <<EOF || die "Symbol mangling check failed."
4163 int ff_extern;
4164 EOF
4165 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4166 extern_prefix=${sym%%ff_extern*}
4167
4168 check_cc <<EOF && enable_weak inline_asm
4169 void foo(void) { __asm__ volatile ("" ::); }
4170 EOF
4171
4172 _restrict=
4173 for restrict_keyword in restrict __restrict__ __restrict; do
4174 check_cc <<EOF && _restrict=$restrict_keyword && break
4175 void foo(char * $restrict_keyword p);
4176 EOF
4177 done
4178
4179 check_cc <<EOF && enable pragma_deprecated
4180 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4181 EOF
4182
4183 check_cc <<EOF && enable attribute_packed
4184 struct { int x; } __attribute__((packed)) x;
4185 EOF
4186
4187 check_cc <<EOF && enable attribute_may_alias
4188 union { int x; } __attribute__((may_alias)) x;
4189 EOF
4190
4191 check_cc <<EOF || die "endian test failed"
4192 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4193 EOF
4194 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4195
4196 check_gas() {
4197 log "check_gas using '$as' as AS"
4198 # :vararg is used on aarch64, arm and ppc altivec
4199 check_as <<EOF || return 1
4200 .macro m n, y:vararg=0
4201 \n: .int \y
4202 .endm
4203 m x
4204 EOF
4205 # .altmacro is only used in arm asm
4206 ! enabled arm || check_as <<EOF || return 1
4207 .altmacro
4208 EOF
4209 enable gnu_as
4210 return 0
4211 }
4212
4213 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4214 nogas=:
4215 enabled_any arm aarch64 && nogas=die
4216 enabled_all ppc altivec && nogas=warn
4217 as_noop=-v
4218
4219 case $as_type in
4220 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4221 gcc) gaspp_as_type=gas ;;
4222 *) gaspp_as_type=$as_type ;;
4223 esac
4224
4225 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4226
4227 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4228 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4229
4230 if ! check_gas ; then
4231 as=${gas:=$as}
4232 check_gas || \
4233 $nogas "GNU assembler not found, install/update gas-preprocessor"
4234 fi
4235
4236 check_as <<EOF && enable as_func
4237 .func test
4238 .endfunc
4239 EOF
4240 fi
4241
4242 check_inline_asm inline_asm_labels '"1:\n"'
4243
4244 if enabled aarch64; then
4245 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4246 # internal assembler in clang 3.3 does not support this instruction
4247 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4248 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4249
4250 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4251
4252 elif enabled alpha; then
4253
4254 check_cflags -mieee
4255
4256 elif enabled arm; then
4257
4258 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4259 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4260 enabled thumb && check_cflags -mthumb || check_cflags -marm
4261
4262 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4263 enable vfp_args
4264 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4265 enable vfp_args
4266 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4267 case "${cross_prefix:-$cc}" in
4268 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4269 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4270 __asm__ (".eabi_attribute 28, 1");
4271 int main(void) { return 0; }
4272 EOF
4273 esac
4274 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4275 fi
4276
4277 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4278 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4279 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4280 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4281 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4282 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4283
4284 [ $target_os = linux ] || [ $target_os = android ] ||
4285 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4286 $ARCH_EXT_LIST_ARM
4287
4288 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4289
4290 check_as <<EOF && enable as_dn_directive
4291 ra .dn d0.i16
4292 .unreq ra
4293 EOF
4294 check_as <<EOF && enable as_fpu_directive
4295 .fpu neon
4296 EOF
4297
4298 # llvm's integrated assembler supports .object_arch from llvm 3.5
4299 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4300 .object_arch armv4
4301 EOF
4302
4303 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4304
4305 elif enabled mips; then
4306
4307 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4308
4309 # make sure that only an instruction set is enabled
4310 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4311
4312 if enabled mips64; then
4313 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4314 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4315 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4316 else
4317 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4318 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4319 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4320 fi
4321
4322 elif enabled parisc; then
4323
4324 if enabled gcc; then
4325 case $($cc -dumpversion) in
4326 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4327 esac
4328 fi
4329
4330 elif enabled ppc; then
4331
4332 enable local_aligned_8 local_aligned_16 local_aligned_32
4333
4334 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4335 check_inline_asm ibm_asm '"add 0, 0, 0"'
4336 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4337 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4338
4339 # AltiVec flags: The FSF version of GCC differs from the Apple version
4340 if enabled altivec; then
4341 check_cflags -maltivec -mabi=altivec &&
4342 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4343 check_cflags -faltivec
4344
4345 # check if our compiler supports Motorola AltiVec C API
4346 check_cc <<EOF || disable altivec
4347 $inc_altivec_h
4348 int main(void) {
4349 vector signed int v1 = (vector signed int) { 0 };
4350 vector signed int v2 = (vector signed int) { 1 };
4351 v1 = vec_add(v1, v2);
4352 return 0;
4353 }
4354 EOF
4355
4356 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4357 fi
4358
4359 if enabled vsx; then
4360 check_cflags -mvsx &&
4361 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4362 fi
4363
4364 if enabled power8; then
4365 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4366 fi
4367
4368 elif enabled x86; then
4369
4370 check_builtin rdtsc intrin.h "__rdtsc()"
4371 check_builtin mm_empty mmintrin.h "_mm_empty()"
4372
4373 enable local_aligned_8 local_aligned_16 local_aligned_32
4374
4375 # check whether EBP is available on x86
4376 # As 'i' is stored on the stack, this program will crash
4377 # if the base