build: Fix dependencies for alsa/jack/sndio support
[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-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
236
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
240 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
241 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
242 --enable-libnpp Nvidia CUDA processing
243 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
244 --enable-nvenc Nvidia video encoding
245 --enable-omx OpenMAX IL
246 --enable-omx-rpi OpenMAX IL for Raspberry Pi
247 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
248 --enable-vda Apple Video Decode Acceleration [auto]
249 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
250
251 Toolchain options:
252 --arch=ARCH select architecture [$arch]
253 --cpu=CPU select the minimum required CPU (affects
254 instruction selection, may crash on older CPUs)
255 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
256 --enable-cross-compile assume a cross-compiler is used
257 --sysroot=PATH root of cross-build tree
258 --sysinclude=PATH location of cross-build system headers
259 --target-os=OS compiler targets OS [$target_os]
260 --target-exec=CMD command to run executables on target
261 --target-path=DIR path to view of build directory on target
262 --target-samples=DIR path to samples directory on target
263 --toolchain=NAME set tool defaults according to NAME
264 --nm=NM use nm tool
265 --ar=AR use archive tool AR [$ar_default]
266 --as=AS use assembler AS [$as_default]
267 --cc=CC use C compiler CC [$cc_default]
268 --objcc=OCC use ObjC compiler OCC [$cc_default]
269 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
270 --ld=LD use linker LD
271 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
272 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
273 --host-cc=HOSTCC use host C compiler HOSTCC
274 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
275 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276 --host-ld=HOSTLD use host linker HOSTLD
277 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
278 --host-libs=HLIBS use libs HLIBS when linking for host
279 --host-os=OS compiler host OS [$target_os]
280 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
281 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
282 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
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) printf '%s ' $v ;; esac"
433 done
434 }
435
436 filter_out(){
437 pat=$1
438 shift
439 for v; do
440 eval "case $v in $pat) ;; *) printf '%s ' $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_cflags_headers(){
720 append CFLAGS_HEADERS $($cflags_filter "$@")
721 }
722
723 add_asflags(){
724 append ASFLAGS $($asflags_filter "$@")
725 }
726
727 add_objcflags(){
728 append OBJCFLAGS $($objcflags_filter "$@")
729 }
730
731 add_ldflags(){
732 append LDFLAGS $($ldflags_filter "$@")
733 }
734
735 add_ldexeflags(){
736 append LDEXEFLAGS $($ldflags_filter "$@")
737 }
738
739 add_stripflags(){
740 append STRIPFLAGS "$@"
741 }
742
743 add_extralibs(){
744 prepend extralibs $($ldflags_filter "$@")
745 }
746
747 add_host_cppflags(){
748 append host_cppflags "$@"
749 }
750
751 add_host_cflags(){
752 append host_cflags $($host_cflags_filter "$@")
753 }
754
755 add_host_ldflags(){
756 append host_ldflags $($host_ldflags_filter "$@")
757 }
758
759 add_compat(){
760 append compat_objs $1
761 shift
762 map 'add_cppflags -D$v' "$@"
763 }
764
765 check_cmd(){
766 log "$@"
767 "$@" >> $logfile 2>&1
768 }
769
770 cc_o(){
771 eval printf '%s\\n' $CC_O
772 }
773
774 cc_e(){
775 eval printf '%s\\n' $CC_E
776 }
777
778 check_cc(){
779 log check_cc "$@"
780 cat > $TMPC
781 log_file $TMPC
782 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
783 }
784
785 check_objcc(){
786 log check_objcc "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
790 }
791
792 check_cpp(){
793 log check_cpp "$@"
794 cat > $TMPC
795 log_file $TMPC
796 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
797 }
798
799 as_o(){
800 eval printf '%s\\n' $AS_O
801 }
802
803 check_as(){
804 log check_as "$@"
805 cat > $TMPS
806 log_file $TMPS
807 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
808 }
809
810 check_inline_asm(){
811 log check_inline_asm "$@"
812 name="$1"
813 code="$2"
814 shift 2
815 disable $name
816 check_cc "$@" <<EOF && enable $name
817 void foo(void){ __asm__ volatile($code); }
818 EOF
819 }
820
821 check_insn(){
822 log check_insn "$@"
823 check_inline_asm ${1}_inline "\"$2\""
824 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
825 }
826
827 check_yasm(){
828 log check_yasm "$@"
829 echo "$1" > $TMPS
830 log_file $TMPS
831 shift 1
832 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
833 }
834
835 ld_o(){
836 eval printf '%s\\n' $LD_O
837 }
838
839 check_ld(){
840 log check_ld "$@"
841 flags=$(filter_out '-l*' "$@")
842 libs=$(filter '-l*' "$@")
843 check_cc $($cflags_filter $flags) || return
844 flags=$($ldflags_filter $flags)
845 libs=$($ldflags_filter $libs)
846 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
847 }
848
849 print_include(){
850 hdr=$1
851 test "${hdr%.h}" = "${hdr}" &&
852 echo "#include $hdr" ||
853 echo "#include <$hdr>"
854 }
855
856 check_code(){
857 log check_code "$@"
858 check=$1
859 headers=$2
860 code=$3
861 shift 3
862 {
863 for hdr in $headers; do
864 print_include $hdr
865 done
866 echo "int main(void) { $code; return 0; }"
867 } | check_$check "$@"
868 }
869
870 check_cppflags(){
871 log check_cppflags "$@"
872 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
873 int x;
874 EOF
875 }
876
877 test_cflags(){
878 log test_cflags "$@"
879 set -- $($cflags_filter "$@")
880 check_cc "$@" <<EOF
881 int x;
882 EOF
883 }
884
885 check_cflags(){
886 log check_cflags "$@"
887 test_cflags "$@" && add_cflags "$@"
888 }
889
890 test_objcflags(){
891 log test_objcflags "$@"
892 set -- $($objcflags_filter "$@")
893 check_objcc "$@" <<EOF
894 int x;
895 EOF
896 }
897
898 check_objcflags(){
899 log check_objcflags "$@"
900 test_objcflags "$@" && add_objcflags "$@"
901 }
902
903 test_ldflags(){
904 log test_ldflags "$@"
905 check_ld "$@" <<EOF
906 int main(void){ return 0; }
907 EOF
908 }
909
910 check_ldflags(){
911 log check_ldflags "$@"
912 test_ldflags "$@" && add_ldflags "$@"
913 }
914
915 test_stripflags(){
916 log test_stripflags "$@"
917 # call check_cc to get a fresh TMPO
918 check_cc <<EOF
919 int main(void) { return 0; }
920 EOF
921 check_cmd $strip $STRIPFLAGS "$@" $TMPO
922 }
923
924 check_stripflags(){
925 log check_stripflags "$@"
926 test_stripflags "$@" && add_stripflags "$@"
927 }
928
929 check_header(){
930 log check_header "$@"
931 header=$1
932 shift
933 disable_safe $header
934 check_cpp "$@" <<EOF && enable_safe $header
935 #include <$header>
936 int x;
937 EOF
938 }
939
940 check_func(){
941 log check_func "$@"
942 func=$1
943 shift
944 disable $func
945 check_ld "$@" <<EOF && enable $func
946 extern int $func();
947 int main(void){ $func(); }
948 EOF
949 }
950
951 check_mathfunc(){
952 log check_mathfunc "$@"
953 func=$1
954 narg=$2
955 shift 2
956 test $narg = 2 && args="f, g" || args="f"
957 disable $func
958 check_ld "$@" <<EOF && enable $func
959 #include <math.h>
960 float foo(float f, float g) { return $func($args); }
961 int main(void){ return 0; }
962 EOF
963 }
964
965 check_func_headers(){
966 log check_func_headers "$@"
967 headers=$1
968 funcs=$2
969 shift 2
970 {
971 for hdr in $headers; do
972 print_include $hdr
973 done
974 for func in $funcs; do
975 echo "long check_$func(void) { return (long) $func; }"
976 done
977 echo "int main(void) { return 0; }"
978 } | check_ld "$@" && enable $funcs && enable_safe $headers
979 }
980
981 check_cpp_condition(){
982 log check_cpp_condition "$@"
983 header=$1
984 condition=$2
985 shift 2
986 check_cpp "$@" <<EOF
987 #include <$header>
988 #if !($condition)
989 #error "unsatisfied condition: $condition"
990 #endif
991 EOF
992 }
993
994 test_cflags_cpp(){
995 log test_cflags_cpp "$@"
996 flags=$1
997 condition=$2
998 shift 2
999 set -- $($cflags_filter "$flags")
1000 check_cpp "$@" <<EOF
1001 #if !($condition)
1002 #error "unsatisfied condition: $condition"
1003 #endif
1004 EOF
1005 }
1006
1007 check_lib(){
1008 log check_lib "$@"
1009 headers="$1"
1010 funcs="$2"
1011 shift 2
1012 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1013 }
1014
1015 check_pkg_config(){
1016 log check_pkg_config "$@"
1017 pkg_version="$1"
1018 pkg="${1%% *}"
1019 headers="$2"
1020 funcs="$3"
1021 shift 3
1022 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1023 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1024 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1025 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1026 set_safe "${pkg}_cflags" $pkg_cflags &&
1027 set_safe "${pkg}_libs" $pkg_libs
1028 }
1029
1030 check_exec(){
1031 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1032 }
1033
1034 check_exec_crash(){
1035 log check_exec_crash "$@"
1036 code=$(cat)
1037
1038 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1039 # are safe but may not be available everywhere. Thus we use
1040 # raise(SIGTERM) instead. The check is run in a subshell so we
1041 # can redirect the "Terminated" message from the shell. SIGBUS
1042 # is not defined by standard C so it is used conditionally.
1043
1044 (check_exec "$@") >> $logfile 2>&1 <<EOF
1045 #include <signal.h>
1046 static void sighandler(int sig){
1047 raise(SIGTERM);
1048 }
1049 int foo(void){
1050 $code
1051 }
1052 int (*func_ptr)(void) = foo;
1053 int main(void){
1054 signal(SIGILL, sighandler);
1055 signal(SIGFPE, sighandler);
1056 signal(SIGSEGV, sighandler);
1057 #ifdef SIGBUS
1058 signal(SIGBUS, sighandler);
1059 #endif
1060 return func_ptr();
1061 }
1062 EOF
1063 }
1064
1065 check_type(){
1066 log check_type "$@"
1067 headers=$1
1068 type=$2
1069 shift 2
1070 disable_safe "$type"
1071 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1072 }
1073
1074 check_struct(){
1075 log check_struct "$@"
1076 headers=$1
1077 struct=$2
1078 member=$3
1079 shift 3
1080 disable_safe "${struct}_${member}"
1081 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1082 enable_safe "${struct}_${member}"
1083 }
1084
1085 check_builtin(){
1086 log check_builtin "$@"
1087 name=$1
1088 headers=$2
1089 builtin=$3
1090 shift 3
1091 disable "$name"
1092 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1093 }
1094
1095 check_compile_assert(){
1096 log check_compile_assert "$@"
1097 name=$1
1098 headers=$2
1099 condition=$3
1100 shift 3
1101 disable "$name"
1102 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1103 }
1104
1105 require(){
1106 log require "$@"
1107 name_version="$1"
1108 headers="$2"
1109 func="$3"
1110 shift 3
1111 check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1112 }
1113
1114 require_pkg_config(){
1115 log require_pkg_config "$@"
1116 pkg_version="$1"
1117 pkg="${1%% *}"
1118 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1119 add_cflags $(get_safe "${pkg}_cflags")
1120 add_extralibs $(get_safe "${pkg}_libs")
1121 }
1122
1123 hostcc_e(){
1124 eval printf '%s\\n' $HOSTCC_E
1125 }
1126
1127 hostcc_o(){
1128 eval printf '%s\\n' $HOSTCC_O
1129 }
1130
1131 check_host_cc(){
1132 log check_host_cc "$@"
1133 cat > $TMPC
1134 log_file $TMPC
1135 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1136 }
1137
1138 check_host_cpp(){
1139 log check_host_cpp "$@"
1140 cat > $TMPC
1141 log_file $TMPC
1142 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1143 }
1144
1145 check_host_cppflags(){
1146 log check_host_cppflags "$@"
1147 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1148 int x;
1149 EOF
1150 }
1151
1152 check_host_cflags(){
1153 log check_host_cflags "$@"
1154 set -- $($host_cflags_filter "$@")
1155 check_host_cc "$@" <<EOF && append host_cflags "$@"
1156 int x;
1157 EOF
1158 }
1159
1160 check_host_cpp_condition(){
1161 log check_host_cpp_condition "$@"
1162 header=$1
1163 condition=$2
1164 shift 2
1165 check_host_cpp "$@" <<EOF
1166 #include <$header>
1167 #if !($condition)
1168 #error "unsatisfied condition: $condition"
1169 #endif
1170 EOF
1171 }
1172
1173 apply(){
1174 file=$1
1175 shift
1176 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1177 }
1178
1179 cp_if_changed(){
1180 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1181 mkdir -p "$(dirname $2)"
1182 cp -f "$1" "$2"
1183 }
1184
1185 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1186 # system-dependent things.
1187
1188 AVCODEC_COMPONENTS="
1189 bsfs
1190 decoders
1191 encoders
1192 hwaccels
1193 parsers
1194 "
1195
1196 AVDEVICE_COMPONENTS="
1197 indevs
1198 outdevs
1199 "
1200 AVFILTER_COMPONENTS="
1201 filters
1202 "
1203 AVFORMAT_COMPONENTS="
1204 demuxers
1205 muxers
1206 protocols
1207 "
1208
1209 AVRESAMPLE_COMPONENTS=""
1210 AVUTIL_COMPONENTS=""
1211
1212 COMPONENT_LIST="
1213 $AVCODEC_COMPONENTS
1214 $AVDEVICE_COMPONENTS
1215 $AVFILTER_COMPONENTS
1216 $AVFORMAT_COMPONENTS
1217 $AVRESAMPLE_COMPONENTS
1218 $AVUTIL_COMPONENTS
1219 "
1220
1221 EXAMPLE_LIST="
1222 decode_audio_example
1223 decode_video_example
1224 encode_audio_example
1225 encode_video_example
1226 filter_audio_example
1227 metadata_example
1228 output_example
1229 qsvdec_example
1230 transcode_aac_example
1231 "
1232
1233 HWACCEL_LIBRARY_NONFREE_LIST="
1234 cuda
1235 libnpp
1236 "
1237 HWACCEL_LIBRARY_LIST="
1238 $HWACCEL_LIBRARY_NONFREE_LIST
1239 d3d11va
1240 dxva2
1241 libmfx
1242 mmal
1243 nvenc
1244 omx
1245 vaapi
1246 vda
1247 vdpau
1248 "
1249
1250 EXTERNAL_LIBRARY_GPL_LIST="
1251 libcdio
1252 libx264
1253 libx265
1254 libxavs
1255 libxvid
1256 "
1257
1258 EXTERNAL_LIBRARY_NONFREE_LIST="
1259 libfaac
1260 libfdk_aac
1261 openssl
1262 "
1263
1264 EXTERNAL_LIBRARY_VERSION3_LIST="
1265 libopencore_amrnb
1266 libopencore_amrwb
1267 libvo_aacenc
1268 libvo_amrwbenc
1269 "
1270
1271 EXTERNAL_LIBRARY_LIST="
1272 $EXTERNAL_LIBRARY_GPL_LIST
1273 $EXTERNAL_LIBRARY_NONFREE_LIST
1274 $EXTERNAL_LIBRARY_VERSION3_LIST
1275 avisynth
1276 avxsynth
1277 bzlib
1278 frei0r
1279 gnutls
1280 libbs2b
1281 libdc1394
1282 libdcadec
1283 libfontconfig
1284 libfreetype
1285 libgsm
1286 libhdcd
1287 libilbc
1288 libkvazaar
1289 libmp3lame
1290 libopencv
1291 libopenh264
1292 libopenjpeg
1293 libopus
1294 libpulse
1295 librtmp
1296 libschroedinger
1297 libsnappy
1298 libspeex
1299 libtheora
1300 libtwolame
1301 libvorbis
1302 libvpx
1303 libwavpack
1304 libwebp
1305 libxcb
1306 libxcb_shm
1307 libxcb_xfixes
1308 zlib
1309 "
1310
1311 FEATURE_LIST="
1312 gray
1313 hardcoded_tables
1314 omx_rpi
1315 runtime_cpudetect
1316 safe_bitstream_reader
1317 shared
1318 small
1319 sram
1320 static
1321 swscale_alpha
1322 "
1323
1324 LIBRARY_LIST="
1325 avcodec
1326 avdevice
1327 avfilter
1328 avformat
1329 avresample
1330 avutil
1331 swscale
1332 "
1333
1334 LICENSE_LIST="
1335 gpl
1336 nonfree
1337 version3
1338 "
1339
1340 PROGRAM_LIST="
1341 avconv
1342 avplay
1343 avprobe
1344 "
1345
1346 SUBSYSTEM_LIST="
1347 dct
1348 doc
1349 error_resilience
1350 faan
1351 fft
1352 lsp
1353 lzo
1354 mdct
1355 network
1356 rdft
1357 "
1358
1359 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1360 CONFIG_LIST="
1361 $EXAMPLE_LIST
1362 $EXTERNAL_LIBRARY_LIST
1363 $HWACCEL_LIBRARY_LIST
1364 $FEATURE_LIST
1365 $LICENSE_LIST
1366 $LIBRARY_LIST
1367 $PROGRAM_LIST
1368 $SUBSYSTEM_LIST
1369 neon_clobber_test
1370 pic
1371 pod2man
1372 texi2html
1373 thumb
1374 valgrind_backtrace
1375 xmm_clobber_test
1376 $COMPONENT_LIST
1377 "
1378
1379 THREADS_LIST="
1380 pthreads
1381 w32threads
1382 "
1383
1384 ATOMICS_LIST="
1385 atomics_gcc
1386 atomics_suncc
1387 atomics_win32
1388 "
1389
1390 ARCH_LIST="
1391 aarch64
1392 alpha
1393 arm
1394 avr32
1395 avr32_ap
1396 avr32_uc
1397 bfin
1398 ia64
1399 m68k
1400 mips
1401 mips64
1402 parisc
1403 ppc
1404 ppc64
1405 s390
1406 sh4
1407 sparc
1408 sparc64
1409 tilegx
1410 tilepro
1411 tomi
1412 x86
1413 x86_32
1414 x86_64
1415 "
1416
1417 ARCH_EXT_LIST_ARM="
1418 armv5te
1419 armv6
1420 armv6t2
1421 armv8
1422 neon
1423 vfp
1424 vfpv3
1425 "
1426
1427 ARCH_EXT_LIST_X86_SIMD="
1428 amd3dnow
1429 amd3dnowext
1430 avx
1431 avx2
1432 fma3
1433 fma4
1434 mmx
1435 mmxext
1436 sse
1437 sse2
1438 sse3
1439 sse4
1440 sse42
1441 ssse3
1442 xop
1443 "
1444
1445 ARCH_EXT_LIST_PPC="
1446 altivec
1447 dcbzl
1448 ldbrx
1449 power8
1450 ppc4xx
1451 vsx
1452 "
1453
1454 ARCH_EXT_LIST_X86="
1455 $ARCH_EXT_LIST_X86_SIMD
1456 cpunop
1457 i686
1458 "
1459
1460 ARCH_EXT_LIST_MIPS="
1461 loongson
1462 mips32r1
1463 mips64r1
1464 mips32r2
1465 mips64r2
1466 mips32r6
1467 mips64r6
1468 "
1469
1470 ARCH_EXT_LIST="
1471 $ARCH_EXT_LIST_ARM
1472 $ARCH_EXT_LIST_MIPS
1473 $ARCH_EXT_LIST_PPC
1474 $ARCH_EXT_LIST_X86
1475 vis
1476 "
1477
1478 ARCH_FEATURES="
1479 aligned_stack
1480 fast_64bit
1481 fast_clz
1482 fast_cmov
1483 local_aligned_8
1484 local_aligned_16
1485 local_aligned_32
1486 simd_align_16
1487 simd_align_32
1488 "
1489
1490 BUILTIN_LIST="
1491 atomic_cas_ptr
1492 machine_rw_barrier
1493 MemoryBarrier
1494 mm_empty
1495 rdtsc
1496 sem_timedwait
1497 sync_val_compare_and_swap
1498 "
1499 HAVE_LIST_CMDLINE="
1500 inline_asm
1501 symver
1502 yasm
1503 "
1504
1505 HAVE_LIST_PUB="
1506 bigendian
1507 fast_unaligned
1508 "
1509
1510 HEADERS_LIST="
1511 AVFoundation_AVFoundation_h
1512 alsa_asoundlib_h
1513 altivec_h
1514 arpa_inet_h
1515 cdio_paranoia_h
1516 cdio_paranoia_paranoia_h
1517 dispatch_dispatch_h
1518 dev_bktr_ioctl_bt848_h
1519 dev_bktr_ioctl_meteor_h
1520 dev_ic_bt8xx_h
1521 dev_video_bktr_ioctl_bt848_h
1522 dev_video_meteor_ioctl_meteor_h
1523 direct_h
1524 dlfcn_h
1525 d3d11_h
1526 dxva_h
1527 gsm_h
1528 io_h
1529 mach_mach_time_h
1530 machine_ioctl_bt848_h
1531 machine_ioctl_meteor_h
1532 malloc_h
1533 poll_h
1534 sndio_h
1535 soundcard_h
1536 stdatomic_h
1537 sys_mman_h
1538 sys_param_h
1539 sys_resource_h
1540 sys_select_h
1541 sys_soundcard_h
1542 sys_time_h
1543 sys_un_h
1544 sys_videoio_h
1545 unistd_h
1546 valgrind_valgrind_h
1547 windows_h
1548 winsock2_h
1549 "
1550
1551 INTRINSICS_LIST="
1552 intrinsics_neon
1553 "
1554
1555 MATH_FUNCS="
1556 atanf
1557 atan2f
1558 cbrtf
1559 cosf
1560 exp2
1561 exp2f
1562 expf
1563 isinf
1564 isnan
1565 ldexpf
1566 llrint
1567 llrintf
1568 log2
1569 log2f
1570 log10f
1571 lrint
1572 lrintf
1573 powf
1574 rint
1575 round
1576 roundf
1577 sinf
1578 trunc
1579 truncf
1580 "
1581
1582 SYSTEM_FUNCS="
1583 aligned_malloc
1584 clock_gettime
1585 closesocket
1586 CommandLineToArgvW
1587 CoTaskMemFree
1588 CryptGenRandom
1589 dlopen
1590 fcntl
1591 flt_lim
1592 fork
1593 getaddrinfo
1594 gethrtime
1595 getopt
1596 GetProcessAffinityMask
1597 GetProcessMemoryInfo
1598 GetProcessTimes
1599 getrusage
1600 GetSystemTimeAsFileTime
1601 gettimeofday
1602 gmtime_r
1603 inet_aton
1604 isatty
1605 jack_port_get_latency_range
1606 LoadLibrary
1607 localtime_r
1608 mach_absolute_time
1609 MapViewOfFile
1610 memalign
1611 mkstemp
1612 mmap
1613 mprotect
1614 nanosleep
1615 posix_memalign
1616 sched_getaffinity
1617 SetConsoleTextAttribute
1618 setmode
1619 setrlimit
1620 Sleep
1621 strerror_r
1622 sysconf
1623 sysctl
1624 usleep
1625 VirtualAlloc
1626 "
1627
1628 TOOLCHAIN_FEATURES="
1629 as_dn_directive
1630 as_fpu_directive
1631 as_func
1632 as_object_arch
1633 asm_mod_q
1634 attribute_may_alias
1635 attribute_packed
1636 ebp_available
1637 ebx_available
1638 gnu_as
1639 ibm_asm
1640 inline_asm_labels
1641 pragma_deprecated
1642 symver_asm_label
1643 symver_gnu_asm
1644 vfp_args
1645 xform_asm
1646 xmm_clobbers
1647 "
1648
1649 TYPES_LIST="
1650 CONDITION_VARIABLE_Ptr
1651 socklen_t
1652 struct_addrinfo
1653 struct_group_source_req
1654 struct_ip_mreq_source
1655 struct_ipv6_mreq
1656 struct_pollfd
1657 struct_rusage_ru_maxrss
1658 struct_sockaddr_in6
1659 struct_sockaddr_sa_len
1660 struct_sockaddr_storage
1661 struct_v4l2_frmivalenum_discrete
1662 "
1663
1664 HAVE_LIST="
1665 $ARCH_EXT_LIST
1666 $(add_suffix _external $ARCH_EXT_LIST)
1667 $(add_suffix _inline $ARCH_EXT_LIST)
1668 $ARCH_FEATURES
1669 $BUILTIN_LIST
1670 $HAVE_LIST_CMDLINE
1671 $HAVE_LIST_PUB
1672 $HEADERS_LIST
1673 $INTRINSICS_LIST
1674 $MATH_FUNCS
1675 $SYSTEM_FUNCS
1676 $THREADS_LIST
1677 $TOOLCHAIN_FEATURES
1678 $TYPES_LIST
1679 dos_paths
1680 dxva2_lib
1681 libc_msvcrt
1682 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1683 sdl
1684 section_data_rel_ro
1685 threads
1686 vaapi_drm
1687 vaapi_x11
1688 vdpau_x11
1689 "
1690
1691 # options emitted with CONFIG_ prefix but not available on the command line
1692 CONFIG_EXTRA="
1693 aandcttables
1694 ac3dsp
1695 audio_frame_queue
1696 audiodsp
1697 blockdsp
1698 bswapdsp
1699 cabac
1700 dirac_parse
1701 dvprofile
1702 faandct
1703 faanidct
1704 fdctdsp
1705 flacdsp
1706 fmtconvert
1707 g722dsp
1708 gmp
1709 golomb
1710 gplv3
1711 h263dsp
1712 h264chroma
1713 h264dsp
1714 h264parse
1715 h264pred
1716 h264qpel
1717 hevc_ps
1718 hpeldsp
1719 huffman
1720 huffyuvdsp
1721 huffyuvencdsp
1722 idctdsp
1723 iirfilter
1724 imdct15
1725 intrax8
1726 iso_media
1727 ividsp
1728 jpegtables
1729 libx262
1730 lgplv3
1731 lpc
1732 lzf
1733 me_cmp
1734 mpeg_er
1735 mpegaudio
1736 mpegaudiodsp
1737 mpegaudioheader
1738 mpegvideo
1739 mpegvideoenc
1740 mss34dsp
1741 pixblockdsp
1742 qpeldsp
1743 qsv
1744 qsvdec
1745 qsvenc
1746 rangecoder
1747 riffdec
1748 riffenc
1749 rtpdec
1750 rtpenc_chain
1751 rv34dsp
1752 sinewin
1753 snappy
1754 srtp
1755 startcode
1756 texturedsp
1757 texturedspenc
1758 tpeldsp
1759 vaapi_encode
1760 vc1dsp
1761 videodsp
1762 vp3dsp
1763 vp56dsp
1764 vp8dsp
1765 wma_freqs
1766 wmv2dsp
1767 "
1768
1769 CMDLINE_SELECT="
1770 $ARCH_EXT_LIST
1771 $CONFIG_LIST
1772 $HAVE_LIST_CMDLINE
1773 $THREADS_LIST
1774 asm
1775 cross_compile
1776 debug
1777 extra_warnings
1778 logging
1779 lto
1780 optimizations
1781 rpath
1782 "
1783
1784 PATHS_LIST="
1785 bindir
1786 datadir
1787 docdir
1788 incdir
1789 libdir
1790 mandir
1791 prefix
1792 shlibdir
1793 "
1794
1795 CMDLINE_SET="
1796 $PATHS_LIST
1797 ar
1798 arch
1799 as
1800 cc
1801 objcc
1802 cpu
1803 cross_prefix
1804 custom_allocator
1805 dep_cc
1806 env
1807 extra_version
1808 host_cc
1809 host_cflags
1810 host_ld
1811 host_ldflags
1812 host_libs
1813 host_os
1814 ld
1815 logfile
1816 malloc_prefix
1817 nm
1818 optflags
1819 pkg_config
1820 pkg_config_flags
1821 random_seed
1822 samples
1823 sysinclude
1824 sysroot
1825 target_exec
1826 target_os
1827 target_path
1828 target_samples
1829 toolchain
1830 "
1831
1832 CMDLINE_APPEND="
1833 extra_cflags
1834 extra_objcflags
1835 host_cppflags
1836 "
1837
1838 # code dependency declarations
1839
1840 # architecture extensions
1841
1842 armv5te_deps="arm"
1843 armv6_deps="arm"
1844 armv6t2_deps="arm"
1845 armv8_deps="aarch64"
1846 neon_deps_any="aarch64 arm"
1847 intrinsics_neon_deps="neon"
1848 vfp_deps_any="aarch64 arm"
1849 vfpv3_deps="vfp"
1850
1851 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1852
1853 altivec_deps="ppc"
1854 ppc4xx_deps="ppc"
1855 vsx_deps="altivec"
1856 power8_deps="vsx"
1857
1858 cpunop_deps="i686"
1859 x86_64_select="i686"
1860 x86_64_suggest="fast_cmov"
1861
1862 amd3dnow_deps="mmx"
1863 amd3dnowext_deps="amd3dnow"
1864 i686_deps="x86"
1865 mmx_deps="x86"
1866 mmxext_deps="mmx"
1867 sse_deps="mmxext"
1868 sse2_deps="sse"
1869 sse3_deps="sse2"
1870 ssse3_deps="sse3"
1871 sse4_deps="ssse3"
1872 sse42_deps="sse4"
1873 avx_deps="sse42"
1874 xop_deps="avx"
1875 fma3_deps="avx"
1876 fma4_deps="avx"
1877 avx2_deps="avx"
1878
1879 mmx_external_deps="yasm"
1880 mmx_inline_deps="inline_asm"
1881 mmx_suggest="mmx_external mmx_inline"
1882
1883 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1884 eval dep=\$${ext}_deps
1885 eval ${ext}_external_deps='"${dep}_external"'
1886 eval ${ext}_inline_deps='"${dep}_inline"'
1887 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1888 done
1889
1890 aligned_stack_if_any="aarch64 ppc x86"
1891 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1892 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1893 fast_unaligned_if_any="aarch64 ppc x86"
1894 simd_align_16_if_any="altivec neon sse"
1895 simd_align_32_if_any="avx"
1896
1897 # system capabilities
1898 symver_if_any="symver_asm_label symver_gnu_asm"
1899 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1900
1901 # threading support
1902 atomics_gcc_if="sync_val_compare_and_swap"
1903 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1904 atomics_win32_if="MemoryBarrier"
1905 atomics_native_if_any="$ATOMICS_LIST"
1906 w32threads_deps="atomics_native"
1907 threads_if_any="$THREADS_LIST"
1908
1909 # subsystems
1910 dct_select="rdft"
1911 dirac_parse_select="golomb"
1912 error_resilience_select="me_cmp"
1913 faandct_deps="faan fdctdsp"
1914 faanidct_deps="faan idctdsp"
1915 h264dsp_select="startcode"
1916 hevc_ps_select="golomb"
1917 intrax8_select="blockdsp idctdsp"
1918 mdct_select="fft"
1919 rdft_select="fft"
1920 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1921 mpeg_er_select="error_resilience"
1922 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1923 mpegaudiodsp_select="dct"
1924 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1925 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1926 vc1dsp_select="h264chroma qpeldsp startcode"
1927
1928 # decoders / encoders
1929 aac_decoder_select="imdct15 mdct sinewin"
1930 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1931 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1932 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1933 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1934 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1935 adpcm_g722_decoder_select="g722dsp"
1936 adpcm_g722_encoder_select="g722dsp"
1937 aic_decoder_select="golomb idctdsp"
1938 alac_encoder_select="lpc"
1939 als_decoder_select="bswapdsp"
1940 amrnb_decoder_select="lsp"
1941 amrwb_decoder_select="lsp"
1942 amv_decoder_select="sp5x_decoder"
1943 ape_decoder_select="bswapdsp"
1944 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1945 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1946 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1947 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1948 atrac1_decoder_select="mdct sinewin"
1949 atrac3_decoder_select="mdct"
1950 atrac3p_decoder_select="mdct sinewin"
1951 bink_decoder_select="blockdsp hpeldsp"
1952 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1953 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1954 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1955 cllc_decoder_select="bswapdsp"
1956 comfortnoise_encoder_select="lpc"
1957 cook_decoder_select="audiodsp mdct sinewin"
1958 cscd_decoder_select="lzo"
1959 cscd_decoder_suggest="zlib"
1960 dca_decoder_select="fmtconvert mdct"
1961 dds_decoder_select="texturedsp"
1962 dnxhd_decoder_select="blockdsp idctdsp"
1963 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1964 dvvideo_decoder_select="dvprofile idctdsp"
1965 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1966 dxa_decoder_deps="zlib"
1967 dxv_decoder_select="lzf texturedsp"
1968 eac3_decoder_select="ac3_decoder"
1969 eac3_encoder_select="ac3_encoder"
1970 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1971 eatgq_decoder_select="aandcttables idctdsp"
1972 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1973 exr_decoder_deps="zlib"
1974 ffv1_decoder_select="rangecoder"
1975 ffv1_encoder_select="rangecoder"
1976 ffvhuff_decoder_select="huffyuv_decoder"
1977 ffvhuff_encoder_select="huffyuv_encoder"
1978 fic_decoder_select="golomb"
1979 flac_decoder_select="flacdsp"
1980 flac_encoder_select="bswapdsp flacdsp lpc"
1981 flashsv_decoder_deps="zlib"
1982 flashsv_encoder_deps="zlib"
1983 flashsv2_decoder_deps="zlib"
1984 flv_decoder_select="h263_decoder"
1985 flv_encoder_select="h263_encoder"
1986 fourxm_decoder_select="blockdsp bswapdsp"
1987 fraps_decoder_select="bswapdsp huffman"
1988 g2m_decoder_deps="zlib"
1989 g2m_decoder_select="blockdsp idctdsp jpegtables"
1990 h261_decoder_select="mpeg_er mpegvideo"
1991 h261_encoder_select="aandcttables mpegvideoenc"
1992 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1993 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1994 h263i_decoder_select="h263_decoder"
1995 h263p_encoder_select="h263_encoder"
1996 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1997 h264_decoder_suggest="error_resilience"
1998 hap_decoder_select="snappy texturedsp"
1999 hap_encoder_deps="libsnappy"
2000 hap_encoder_select="texturedspenc"
2001 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2002 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2003 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2004 iac_decoder_select="imc_decoder"
2005 imc_decoder_select="bswapdsp fft mdct sinewin"
2006 indeo3_decoder_select="hpeldsp"
2007 indeo4_decoder_select="ividsp"
2008 indeo5_decoder_select="ividsp"
2009 interplay_video_decoder_select="hpeldsp"
2010 jpegls_decoder_select="mjpeg_decoder"
2011 jv_decoder_select="blockdsp"
2012 lagarith_decoder_select="huffyuvdsp"
2013 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2014 magicyuv_decoder_select="huffyuvdsp"
2015 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2016 metasound_decoder_select="lsp mdct sinewin"
2017 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2018 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2019 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2020 mjpegb_decoder_select="mjpeg_decoder"
2021 mlp_decoder_select="mlp_parser"
2022 motionpixels_decoder_select="bswapdsp"
2023 mp1_decoder_select="mpegaudio"
2024 mp1float_decoder_select="mpegaudio"
2025 mp2_decoder_select="mpegaudio"
2026 mp2float_decoder_select="mpegaudio"
2027 mp3_decoder_select="mpegaudio"
2028 mp3adu_decoder_select="mpegaudio"
2029 mp3adufloat_decoder_select="mpegaudio"
2030 mp3float_decoder_select="mpegaudio"
2031 mp3on4_decoder_select="mpegaudio"
2032 mp3on4float_decoder_select="mpegaudio"
2033 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2034 mpc8_decoder_select="mpegaudiodsp"
2035 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2036 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2037 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2038 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2039 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2040 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2041 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2042 mpeg4_encoder_select="h263_encoder"
2043 msa1_decoder_select="mss34dsp"
2044 msmpeg4v1_decoder_select="h263_decoder"
2045 msmpeg4v2_decoder_select="h263_decoder"
2046 msmpeg4v2_encoder_select="h263_encoder"
2047 msmpeg4v3_decoder_select="h263_decoder"
2048 msmpeg4v3_encoder_select="h263_encoder"
2049 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2050 mts2_decoder_select="mss34dsp"
2051 mxpeg_decoder_select="mjpeg_decoder"
2052 nellymoser_decoder_select="mdct sinewin"
2053 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2054 nuv_decoder_select="idctdsp lzo"
2055 on2avc_decoder_select="mdct"
2056 opus_decoder_deps="avresample"
2057 opus_decoder_select="imdct15"
2058 png_decoder_deps="zlib"
2059 png_encoder_deps="zlib"
2060 png_encoder_select="huffyuvencdsp"
2061 prores_decoder_select="idctdsp"
2062 prores_encoder_select="fdctdsp"
2063 qcelp_decoder_select="lsp"
2064 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2065 ra_144_encoder_select="audio_frame_queue lpc"
2066 ralf_decoder_select="golomb"
2067 rscc_decoder_deps="zlib"
2068 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2069 rv10_encoder_select="h263_encoder"
2070 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2071 rv20_encoder_select="h263_encoder"
2072 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2073 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2074 screenpresso_decoder_deps="zlib"
2075 sipr_decoder_select="lsp"
2076 sp5x_decoder_select="mjpeg_decoder"
2077 svq1_decoder_select="hpeldsp"
2078 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2079 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2080 svq3_decoder_suggest="zlib"
2081 tak_decoder_select="audiodsp"
2082 tdsc_decoder_deps="zlib"
2083 tdsc_decoder_select="mjpeg_decoder"
2084 theora_decoder_select="vp3_decoder"
2085 thp_decoder_select="mjpeg_decoder"
2086 tiff_decoder_suggest="zlib"
2087 tiff_encoder_suggest="zlib"
2088 truehd_decoder_select="mlp_decoder"
2089 truemotion2_decoder_select="bswapdsp"
2090 truespeech_decoder_select="bswapdsp"
2091 tscc_decoder_deps="zlib"
2092 txd_decoder_select="texturedsp"
2093 twinvq_decoder_select="mdct lsp sinewin"
2094 utvideo_decoder_select="bswapdsp"
2095 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2096 vble_decoder_select="huffyuvdsp"
2097 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2098 vc1image_decoder_select="vc1_decoder"
2099 vorbis_decoder_select="mdct"
2100 vorbis_encoder_select="mdct"
2101 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2102 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2103 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2104 vp6a_decoder_select="vp6_decoder"
2105 vp6f_decoder_select="vp6_decoder"
2106 vp7_decoder_select="h264pred videodsp vp8dsp"
2107 vp8_decoder_select="h264pred videodsp vp8dsp"
2108 vp9_decoder_select="videodsp"
2109 webp_decoder_select="vp8_decoder"
2110 wmapro_decoder_select="mdct sinewin wma_freqs"
2111 wmav1_decoder_select="mdct sinewin wma_freqs"
2112 wmav1_encoder_select="mdct sinewin wma_freqs"
2113 wmav2_decoder_select="mdct sinewin wma_freqs"
2114 wmav2_encoder_select="mdct sinewin wma_freqs"
2115 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2116 wmv1_decoder_select="h263_decoder"
2117 wmv1_encoder_select="h263_encoder"
2118 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2119 wmv2_encoder_select="h263_encoder wmv2dsp"
2120 wmv3_decoder_select="vc1_decoder"
2121 wmv3image_decoder_select="wmv3_decoder"
2122 zerocodec_decoder_deps="zlib"
2123 zlib_decoder_deps="zlib"
2124 zlib_encoder_deps="zlib"
2125 zmbv_decoder_deps="zlib"
2126 zmbv_encoder_deps="zlib"
2127
2128 # hardware accelerators
2129 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2130 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2131 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2132 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2133
2134 h263_vaapi_hwaccel_deps="vaapi"
2135 h263_vaapi_hwaccel_select="h263_decoder"
2136 h264_d3d11va_hwaccel_deps="d3d11va"
2137 h264_d3d11va_hwaccel_select="h264_decoder"
2138 h264_dxva2_hwaccel_deps="dxva2"
2139 h264_dxva2_hwaccel_select="h264_decoder"
2140 h264_mmal_hwaccel_deps="mmal"
2141 h264_qsv_hwaccel_deps="libmfx"
2142 h264_vaapi_hwaccel_deps="vaapi"
2143 h264_vaapi_hwaccel_select="h264_decoder"
2144 h264_vda_hwaccel_deps="vda"
2145 h264_vda_hwaccel_select="h264_decoder"
2146 h264_vda_old_hwaccel_deps="vda"
2147 h264_vda_old_hwaccel_select="h264_decoder"
2148 h264_vdpau_hwaccel_deps="vdpau"
2149 h264_vdpau_hwaccel_select="h264_decoder"
2150 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2151 hevc_d3d11va_hwaccel_select="hevc_decoder"
2152 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2153 hevc_dxva2_hwaccel_select="hevc_decoder"
2154 hevc_qsv_hwaccel_deps="libmfx"
2155 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2156 hevc_vdpau_hwaccel_select="hevc_decoder"
2157 mpeg1_vdpau_hwaccel_deps="vdpau"
2158 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2159 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2160 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_dxva2_hwaccel_deps="dxva2"
2162 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2163 mpeg2_mmal_hwaccel_deps="mmal"
2164 mpeg2_qsv_hwaccel_deps="libmfx"
2165 mpeg2_vaapi_hwaccel_deps="vaapi"
2166 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2167 mpeg2_vdpau_hwaccel_deps="vdpau"
2168 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2169 mpeg4_vaapi_hwaccel_deps="vaapi"
2170 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2171 mpeg4_vdpau_hwaccel_deps="vdpau"
2172 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2173 vc1_d3d11va_hwaccel_deps="d3d11va"
2174 vc1_d3d11va_hwaccel_select="vc1_decoder"
2175 vc1_dxva2_hwaccel_deps="dxva2"
2176 vc1_dxva2_hwaccel_select="vc1_decoder"
2177 vc1_mmal_hwaccel_deps="mmal"
2178 vc1_qsv_hwaccel_deps="libmfx"
2179 vc1_vaapi_hwaccel_deps="vaapi"
2180 vc1_vaapi_hwaccel_select="vc1_decoder"
2181 vc1_vdpau_hwaccel_deps="vdpau"
2182 vc1_vdpau_hwaccel_select="vc1_decoder"
2183 vp8_qsv_hwaccel_deps="libmfx"
2184 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2185 vp8_vaapi_hwaccel_select="vp8_decoder"
2186 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2187 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2188 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2189 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2190
2191 # hardware-accelerated codecs
2192 nvenc_deps_any="dlopen LoadLibrary"
2193 nvenc_extralibs='$ldl'
2194 omx_deps="dlopen pthreads"
2195 omx_extralibs='$ldl'
2196 omx_rpi_select="omx"
2197 qsvdec_select="qsv"
2198 qsvenc_select="qsv"
2199 vaapi_encode_deps="vaapi"
2200
2201 hwupload_cuda_filter_deps="cuda"
2202 scale_npp_filter_deps="cuda libnpp"
2203
2204 h264_mmal_decoder_deps="mmal"
2205 h264_nvenc_encoder_deps="nvenc"
2206 h264_omx_encoder_deps="omx"
2207 h264_qsv_decoder_deps="libmfx"
2208 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2209 h264_qsv_encoder_deps="libmfx"
2210 h264_qsv_encoder_select="qsvenc"
2211 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2212 h264_vaapi_encoder_select="vaapi_encode golomb"
2213 hevc_nvenc_encoder_deps="nvenc"
2214 hevc_qsv_decoder_deps="libmfx"
2215 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2216 hevc_qsv_encoder_deps="libmfx"
2217 hevc_qsv_encoder_select="hevc_ps qsvenc"
2218 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2219 hevc_vaapi_encoder_select="vaapi_encode golomb"
2220 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2221 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2222 mpeg2_mmal_decoder_deps="mmal"
2223 mpeg2_qsv_decoder_deps="libmfx"
2224 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2225 mpeg2_qsv_encoder_deps="libmfx"
2226 mpeg2_qsv_encoder_select="qsvenc"
2227 mpeg4_omx_encoder_deps="omx"
2228 vc1_mmal_decoder_deps="mmal"
2229 vc1_qsv_decoder_deps="libmfx"
2230 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2231 vp8_qsv_decoder_deps="libmfx"
2232 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2233
2234 nvenc_h264_encoder_select="h264_nvenc_encoder"
2235 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2236
2237 # parsers
2238 h264_parser_select="golomb h264dsp h264parse"
2239 hevc_parser_select="hevc_ps"
2240 mpegaudio_parser_select="mpegaudioheader"
2241 mpegvideo_parser_select="mpegvideo"
2242 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2243 vc1_parser_select="vc1dsp"
2244
2245 # bitstream_filters
2246 mjpeg2jpeg_bsf_select="jpegtables"
2247
2248 # external libraries
2249 avisynth_deps="LoadLibrary"
2250 avxsynth_deps="dlopen"
2251 avisynth_demuxer_deps_any="avisynth avxsynth"
2252 avisynth_demuxer_select="riffdec"
2253 libdcadec_decoder_deps="libdcadec"
2254 libfaac_encoder_deps="libfaac"
2255 libfaac_encoder_select="audio_frame_queue"
2256 libfdk_aac_decoder_deps="libfdk_aac"
2257 libfdk_aac_encoder_deps="libfdk_aac"
2258 libfdk_aac_encoder_select="audio_frame_queue"
2259 libgsm_decoder_deps="libgsm"
2260 libgsm_encoder_deps="libgsm"
2261 libgsm_ms_decoder_deps="libgsm"
2262 libgsm_ms_encoder_deps="libgsm"
2263 libilbc_decoder_deps="libilbc"
2264 libilbc_encoder_deps="libilbc"
2265 libkvazaar_encoder_deps="libkvazaar"
2266 libmp3lame_encoder_deps="libmp3lame"
2267 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2268 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2269 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2270 libopencore_amrnb_encoder_select="audio_frame_queue"
2271 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2272 libopenh264_decoder_deps="libopenh264"
2273 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2274 libopenh264_encoder_deps="libopenh264"
2275 libopenjpeg_decoder_deps="libopenjpeg"
2276 libopenjpeg_encoder_deps="libopenjpeg"
2277 libopus_decoder_deps="libopus"
2278 libopus_encoder_deps="libopus"
2279 libopus_encoder_select="audio_frame_queue"
2280 libschroedinger_decoder_deps="libschroedinger"
2281 libschroedinger_encoder_deps="libschroedinger"
2282 libspeex_decoder_deps="libspeex"
2283 libspeex_encoder_deps="libspeex"
2284 libspeex_encoder_select="audio_frame_queue"
2285 libtheora_encoder_deps="libtheora"
2286 libtwolame_encoder_deps="libtwolame"
2287 libvo_aacenc_encoder_deps="libvo_aacenc"
2288 libvo_aacenc_encoder_select="audio_frame_queue"
2289 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2290 libvorbis_encoder_deps="libvorbis"
2291 libvorbis_encoder_select="audio_frame_queue"
2292 libvpx_vp8_decoder_deps="libvpx"
2293 libvpx_vp8_encoder_deps="libvpx"
2294 libvpx_vp9_decoder_deps="libvpx"
2295 libvpx_vp9_encoder_deps="libvpx"
2296 libwavpack_encoder_deps="libwavpack"
2297 libwavpack_encoder_select="audio_frame_queue"
2298 libwebp_encoder_deps="libwebp"
2299 libx262_encoder_deps="libx262"
2300 libx264_encoder_deps="libx264"
2301 libx265_encoder_deps="libx265"
2302 libxavs_encoder_deps="libxavs"
2303 libxvid_encoder_deps="libxvid mkstemp"
2304
2305 # demuxers / muxers
2306 ac3_demuxer_select="ac3_parser"
2307 asf_demuxer_select="riffdec"
2308 asf_muxer_select="riffenc"
2309 asf_stream_muxer_select="asf_muxer"
2310 avi_demuxer_select="iso_media riffdec"
2311 avi_muxer_select="riffenc"
2312 caf_demuxer_select="iso_media riffdec"
2313 dash_muxer_select="mp4_muxer"
2314 dirac_demuxer_select="dirac_parser"
2315 dv_demuxer_select="dvprofile"
2316 dv_muxer_select="dvprofile"
2317 dxa_demuxer_select="riffdec"
2318 eac3_demuxer_select="ac3_parser"
2319 f4v_muxer_select="mov_muxer"
2320 flac_demuxer_select="flac_parser"
2321 hds_muxer_select="flv_muxer"
2322 hls_muxer_select="mpegts_muxer"
2323 ipod_muxer_select="mov_muxer"
2324 ismv_muxer_select="mov_muxer"
2325 matroska_audio_muxer_select="matroska_muxer"
2326 matroska_demuxer_select="iso_media riffdec"
2327 matroska_demuxer_suggest="bzlib lzo zlib"
2328 matroska_muxer_select="iso_media riffenc"
2329 mmf_muxer_select="riffenc"
2330 mov_demuxer_select="iso_media riffdec"
2331 mov_demuxer_suggest="zlib"
2332 mov_muxer_select="iso_media riffenc rtpenc_chain"
2333 mp3_demuxer_select="mpegaudio_parser"
2334 mp3_muxer_select="mpegaudioheader"
2335 mp4_muxer_select="mov_muxer"
2336 mpegts_demuxer_select="iso_media"
2337 mpegts_muxer_select="adts_muxer latm_muxer"
2338 mpegtsraw_demuxer_select="mpegts_demuxer"
2339 mxf_d10_muxer_select="mxf_muxer"
2340 nut_muxer_select="riffenc"
2341 nuv_demuxer_select="riffdec"
2342 oga_muxer_select="ogg_muxer"
2343 ogg_demuxer_select="dirac_parse"
2344 opus_muxer_select="ogg_muxer"
2345 psp_muxer_select="mov_muxer"
2346 rtp_demuxer_select="sdp_demuxer"
2347 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2348 rtsp_demuxer_select="http_protocol rtpdec"
2349 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2350 sap_demuxer_select="sdp_demuxer"
2351 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2352 sdp_demuxer_select="rtpdec"
2353 smoothstreaming_muxer_select="ismv_muxer"
2354 spdif_muxer_select="aac_parser"
2355 spx_muxer_select="ogg_muxer"
2356 swf_demuxer_suggest="zlib"
2357 tak_demuxer_select="tak_parser"
2358 tg2_muxer_select="mov_muxer"
2359 tgp_muxer_select="mov_muxer"
2360 w64_demuxer_select="wav_demuxer"
2361 wav_demuxer_select="riffdec"
2362 wav_muxer_select="riffenc"
2363 webm_muxer_select="iso_media riffenc"
2364 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2365 wtv_demuxer_select="mpegts_demuxer riffdec"
2366 xmv_demuxer_select="riffdec"
2367 xwma_demuxer_select="riffdec"
2368
2369 # indevs / outdevs
2370 alsa_indev_deps="alsa"
2371 alsa_outdev_deps="alsa"
2372 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2373 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2374 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2375 dv1394_indev_deps="dv1394"
2376 dv1394_indev_select="dv_demuxer"
2377 fbdev_indev_deps="linux_fb_h"
2378 jack_indev_deps="jack"
2379 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2380 libcdio_indev_deps="libcdio"
2381 libdc1394_indev_deps="libdc1394"
2382 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2383 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2384 pulse_indev_deps="libpulse"
2385 sndio_indev_deps="sndio"
2386 sndio_outdev_deps="sndio"
2387 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2388 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2389 vfwcap_indev_extralibs="-lavicap32"
2390 xcbgrab_indev_deps="libxcb"
2391
2392 # protocols
2393 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2394 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2395 ffrtmpcrypt_protocol_select="tcp_protocol"
2396 ffrtmphttp_protocol_deps="!librtmp_protocol"
2397 ffrtmphttp_protocol_select="http_protocol"
2398 gopher_protocol_select="network"
2399 http_protocol_select="tcp_protocol"
2400 httpproxy_protocol_select="tcp_protocol"
2401 https_protocol_select="tls_protocol"
2402 icecast_protocol_select="http_protocol"
2403 librtmp_protocol_deps="librtmp"
2404 librtmpe_protocol_deps="librtmp"
2405 librtmps_protocol_deps="librtmp"
2406 librtmpt_protocol_deps="librtmp"
2407 librtmpte_protocol_deps="librtmp"
2408 mmsh_protocol_select="http_protocol"
2409 mmst_protocol_select="network"
2410 rtmp_protocol_deps="!librtmp_protocol"
2411 rtmp_protocol_select="tcp_protocol"
2412 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2413 rtmps_protocol_deps="!librtmp_protocol"
2414 rtmps_protocol_select="tls_protocol"
2415 rtmpt_protocol_select="ffrtmphttp_protocol"
2416 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2417 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2418 rtp_protocol_select="udp_protocol"
2419 sctp_protocol_deps="struct_sctp_event_subscribe"
2420 sctp_protocol_select="network"
2421 srtp_protocol_select="rtp_protocol srtp"
2422 tcp_protocol_select="network"
2423 tls_gnutls_protocol_deps="gnutls"
2424 tls_gnutls_protocol_select="tcp_protocol"
2425 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2426 tls_openssl_protocol_select="tcp_protocol"
2427 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2428 udp_protocol_select="network"
2429 unix_protocol_deps="sys_un_h"
2430 unix_protocol_select="network"
2431
2432 # filters
2433 asyncts_filter_deps="avresample"
2434 blackframe_filter_deps="gpl"
2435 boxblur_filter_deps="gpl"
2436 bs2b_filter_deps="libbs2b"
2437 cropdetect_filter_deps="gpl"
2438 deinterlace_qsv_filter_deps="libmfx"
2439 delogo_filter_deps="gpl"
2440 drawtext_filter_deps="libfreetype"
2441 frei0r_filter_deps="frei0r dlopen"
2442 frei0r_filter_extralibs='$ldl'
2443 frei0r_src_filter_deps="frei0r dlopen"
2444 frei0r_src_filter_extralibs='$ldl'
2445 hdcd_filter_deps="libhdcd"
2446 hqdn3d_filter_deps="gpl"
2447 interlace_filter_deps="gpl"
2448 movie_filter_deps="avcodec avformat"
2449 ocv_filter_deps="libopencv"
2450 resample_filter_deps="avresample"
2451 scale_filter_deps="swscale"
2452 scale_qsv_filter_deps="libmfx"
2453 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2454
2455 # examples
2456 decode_audio_example_deps="avcodec avutil"
2457 decode_video_example_deps="avcodec avutil"
2458 encode_audio_example_deps="avcodec avutil"
2459 encode_video_example_deps="avcodec avutil"
2460 filter_audio_example_deps="avfilter avutil"
2461 metadata_example_deps="avformat avutil"
2462 output_example_deps="avcodec avformat avresample avutil swscale"
2463 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2464 transcode_aac_example_deps="avcodec avformat avresample"
2465
2466 # libraries, in linking order
2467 avcodec_deps="avutil"
2468 avdevice_deps="avformat avcodec avutil"
2469 avfilter_deps="avutil"
2470 avformat_deps="avcodec avutil"
2471 avresample_deps="avutil"
2472 swscale_deps="avutil"
2473
2474 # programs
2475 avconv_deps="avcodec avfilter avformat avresample swscale"
2476 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2477 fps_filter null_filter resample_filter scale_filter
2478 trim_filter"
2479 avplay_deps="avcodec avfilter avformat avresample sdl"
2480 avplay_libs='$sdl_libs'
2481 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2482 avprobe_deps="avcodec avformat"
2483
2484 # documentation
2485 pod2man_deps="doc"
2486 texi2html_deps="doc"
2487
2488 # default parameters
2489
2490 logfile="config.log"
2491
2492 # installation paths
2493 prefix_default="/usr/local"
2494 bindir_default='${prefix}/bin'
2495 datadir_default='${prefix}/share/avconv'
2496 docdir_default='${prefix}/share/doc/libav'
2497 incdir_default='${prefix}/include'
2498 libdir_default='${prefix}/lib'
2499 mandir_default='${prefix}/share/man'
2500 shlibdir_default="$libdir_default"
2501
2502 # toolchain
2503 ar_default="ar"
2504 cc_default="gcc"
2505 host_cc_default="gcc"
2506 ln_s="ln -s -f"
2507 nm_default="nm -g"
2508 objformat="elf"
2509 pkg_config_default=pkg-config
2510 ranlib="ranlib"
2511 strip="strip"
2512 version_script='--version-script'
2513 yasmexe="yasm"
2514
2515 # machine
2516 arch_default=$(uname -m)
2517 cpu="generic"
2518 intrinsics="none"
2519
2520 # OS
2521 target_os_default=$(tolower $(uname -s))
2522 host_os=$target_os_default
2523
2524 # configurable options
2525 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2526
2527 enable asm
2528 enable debug
2529 enable doc
2530 enable faan faandct faanidct
2531 enable optimizations
2532 enable safe_bitstream_reader
2533 enable static
2534 enable swscale_alpha
2535 enable valgrind_backtrace
2536
2537 # By default, enable only those hwaccels that have no external dependencies.
2538 enable d3d11va dxva2 vda vdpau
2539
2540 # build settings
2541 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2542 LIBPREF="lib"
2543 LIBSUF=".a"
2544 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2545 SLIBPREF="lib"
2546 SLIBSUF=".so"
2547 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2548 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2549 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2550 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2551 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2552 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2553 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2554
2555 asflags_filter=echo
2556 cflags_filter=echo
2557 ldflags_filter=echo
2558
2559 AS_C='-c'
2560 AS_O='-o $@'
2561 CC_C='-c'
2562 CC_E='-E -o $@'
2563 CC_O='-o $@'
2564 OBJCC_C='-c'
2565 OBJCC_E='-E -o $@'
2566 OBJCC_O='-o $@'
2567 LD_O='-o $@'
2568 LD_LIB='-l%'
2569 LD_PATH='-L'
2570 HOSTCC_C='-c'
2571 HOSTCC_E='-E -o $@'
2572 HOSTCC_O='-o $@'
2573 HOSTLD_O='-o $@'
2574
2575 host_libs='-lm'
2576 host_cflags_filter=echo
2577 host_ldflags_filter=echo
2578
2579 target_path='$(CURDIR)'
2580
2581 # since the object filename is not given with the -MM flag, the compiler
2582 # is only able to print the basename, and we must add the path ourselves
2583 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2584 DEPFLAGS='-MM'
2585
2586 # find source path
2587 if test -f configure; then
2588 source_path=.
2589 else
2590 source_path=$(cd $(dirname "$0"); pwd)
2591 echo "$source_path" | grep -q '[[:blank:]]' &&
2592 die "Out of tree builds are impossible with whitespace in source path."
2593 test -e "$source_path/config.h" &&
2594 die "Out of tree builds are impossible with config.h in source dir."
2595 fi
2596
2597 for v in "$@"; do
2598 r=${v#*=}
2599 l=${v%"$r"}
2600 r=$(sh_quote "$r")
2601 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2602 done
2603
2604 find_things(){
2605 thing=$1
2606 pattern=$2
2607 file=$source_path/$3
2608 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2609 }
2610
2611 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2612 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2613 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2614 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2615 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2616 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2617 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2618 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2619 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2620
2621 find_things_extern(){
2622 thing=$1
2623 pattern=$2
2624 file=$source_path/$3
2625 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2626 }
2627
2628 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2629 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2630
2631 ALL_COMPONENTS="
2632 $BSF_LIST
2633 $DECODER_LIST
2634 $DEMUXER_LIST
2635 $ENCODER_LIST
2636 $FILTER_LIST
2637 $HWACCEL_LIST
2638 $INDEV_LIST
2639 $MUXER_LIST
2640 $OUTDEV_LIST
2641 $PARSER_LIST
2642 $PROTOCOL_LIST
2643 "
2644
2645 for n in $COMPONENT_LIST; do
2646 v=$(toupper ${n%s})_LIST
2647 eval enable \$$v
2648 eval ${n}_if_any="\$$v"
2649 done
2650
2651 enable $ARCH_EXT_LIST
2652
2653 die_unknown(){
2654 echo "Unknown option \"$1\"."
2655 echo "See $0 --help for available options."
2656 exit 1
2657 }
2658
2659 print_3_columns() {
2660 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2661 }
2662
2663 show_list() {
2664 suffix=_$1
2665 shift
2666 echo $* | sed s/$suffix//g | print_3_columns
2667 exit 0
2668 }
2669
2670 rand_list(){
2671 IFS=', '
2672 set -- $*
2673 unset IFS
2674 for thing; do
2675 comp=${thing%:*}
2676 prob=${thing#$comp}
2677 prob=${prob#:}
2678 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2679 echo "prob ${prob:-0.5}"
2680 printf '%s\n' $comp
2681 done
2682 }
2683
2684 do_random(){
2685 action=$1
2686 shift
2687 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2688 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2689 }
2690
2691 for opt do
2692 optval="${opt#*=}"
2693 case "$opt" in
2694 --extra-ldflags=*)
2695 add_ldflags $optval
2696 ;;
2697 --extra-ldexeflags=*)
2698 add_ldexeflags $optval
2699 ;;
2700 --extra-libs=*)
2701 add_extralibs $optval
2702 ;;
2703 --disable-devices)
2704 disable $INDEV_LIST $OUTDEV_LIST
2705 ;;
2706 --enable-debug=*)
2707 debuglevel="$optval"
2708 ;;
2709 --disable-programs)
2710 disable $PROGRAM_LIST
2711 ;;
2712 --disable-everything)
2713 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2714 ;;
2715 --disable-all)
2716 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2717 disable $LIBRARY_LIST $PROGRAM_LIST doc
2718 ;;
2719 --enable-random|--disable-random)
2720 action=${opt%%-random}
2721 do_random ${action#--} $COMPONENT_LIST
2722 ;;
2723 --enable-random=*|--disable-random=*)
2724 action=${opt%%-random=*}
2725 do_random ${action#--} $optval
2726 ;;
2727 --enable-*=*|--disable-*=*)
2728 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2729 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2730 eval list=\$$(toupper $thing)_LIST
2731 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2732 $action $(filter "$name" $list)
2733 ;;
2734 --enable-avserver|--disable-avserver*)
2735 warn "avserver has been removed, the ${opt} option is only"\
2736 "provided for compatibility and will be removed in the future"
2737 ;;
2738 --enable-?*|--disable-?*)
2739 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2740 if is_in $option $COMPONENT_LIST; then
2741 test $action = disable && action=unset
2742 eval $action \$$(toupper ${option%s})_LIST
2743 elif is_in $option $CMDLINE_SELECT; then
2744 $action $option
2745 else
2746 die_unknown $opt
2747 fi
2748 ;;
2749 --list-*)
2750 NAME="${opt#--list-}"
2751 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2752 NAME=${NAME%s}
2753 eval show_list $NAME \$$(toupper $NAME)_LIST
2754 ;;
2755 --help|-h) show_help
2756 ;;
2757 --quiet|-q) quiet=yes
2758 ;;
2759 *)
2760 optname="${opt%%=*}"
2761 optname="${optname#--}"
2762 optname=$(echo "$optname" | sed 's/-/_/g')
2763 if is_in $optname $CMDLINE_SET; then
2764 eval $optname='$optval'
2765 elif is_in $optname $CMDLINE_APPEND; then
2766 append $optname "$optval"
2767 else
2768 die_unknown $opt
2769 fi
2770 ;;
2771 esac
2772 done
2773
2774 for e in $env; do
2775 eval "export $e"
2776 done
2777
2778 disabled logging && logfile=/dev/null
2779
2780 # Die early if licensing-related configure options are incompatible.
2781 die_license_disabled() {
2782 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2783 }
2784
2785 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2786 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2787 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2788
2789 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2790
2791 # Disable all the library-specific components if the library itself
2792 # is disabled, see AVCODEC_LIST and following _LIST variables.
2793
2794 disable_components(){
2795 disabled ${1} && disable $(
2796 eval components="\$$(toupper ${1})_COMPONENTS"
2797 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2798 )
2799 }
2800
2801 map 'disable_components $v' $LIBRARY_LIST
2802
2803 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2804 set >> $logfile
2805
2806 case "$toolchain" in
2807 *-asan)
2808 cc_default="${toolchain%-asan}"
2809 add_cflags -fsanitize=address
2810 add_ldflags -fsanitize=address
2811 ;;
2812 *-msan)
2813 cc_default="${toolchain%-msan}"
2814 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2815 add_ldflags -fsanitize=memory
2816 ;;
2817 *-tsan)
2818 cc_default="${toolchain%-tsan}"
2819 add_cflags -fsanitize=thread -fPIE
2820 add_ldflags -fsanitize=thread -pie
2821 case "$toolchain" in
2822 gcc-tsan)
2823 add_cflags -fPIC
2824 add_ldflags -fPIC
2825 ;;
2826 esac
2827 ;;
2828 *-usan)
2829 cc_default="${toolchain%-usan}"
2830 add_cflags -fsanitize=undefined
2831 add_ldflags -fsanitize=undefined
2832 case "$toolchain" in
2833 clang-usan)
2834 add_cflags -O1
2835 ;;
2836 esac
2837 ;;
2838 valgrind-*)
2839 target_exec_default="valgrind"
2840 case "$toolchain" in
2841 valgrind-massif)
2842 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2843 ;;
2844 valgrind-memcheck)
2845 target_exec_args="--track-origins=yes --leak-check=full"
2846 ;;
2847 esac
2848 ;;
2849 msvc)
2850 # Check whether the current MSVC version needs the C99 converter.
2851 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2852 # support enough of C99 to build libav. Default to the new
2853 # behaviour if the regexp was unable to match anything, since this
2854 # successfully parses the version number of existing supported
2855 # versions that require the converter (MSVC 2010 and 2012).
2856 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2857 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2858 cc_default="cl"
2859 else
2860 cc_default="c99wrap cl"
2861 fi
2862 ld_default="$source_path/compat/windows/mslink"
2863 nm_default="dumpbin -symbols"
2864 ar_default="lib"
2865 case "$arch" in
2866 arm*)
2867 as_default="armasm"
2868 ;;
2869 esac
2870 target_os_default="win32"
2871 # Use a relative path for TMPDIR. This makes sure all the
2872 # ffconf temp files are written with a relative path, avoiding
2873 # issues with msys/win32 path conversion for MSVC parameters
2874 # such as -Fo<file> or -out:<file>.
2875 TMPDIR=.
2876 ;;
2877 icl)
2878 cc_default="icl"
2879 ld_default="xilink"
2880 nm_default="dumpbin -symbols"
2881 ar_default="xilib"
2882 target_os_default="win32"
2883 TMPDIR=.
2884 ;;
2885 gcov)
2886 add_cflags -fprofile-arcs -ftest-coverage
2887 add_ldflags -fprofile-arcs -ftest-coverage
2888 ;;
2889 llvm-cov)
2890 add_cflags -fprofile-arcs -ftest-coverage
2891 add_ldflags --coverage
2892 ;;
2893 hardened)
2894 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2895 add_cflags -fno-strict-overflow -fstack-protector-all
2896 add_ldflags -Wl,-z,relro -Wl,-z,now
2897 ;;
2898 ?*)
2899 die "Unknown toolchain $toolchain"
2900 ;;
2901 esac
2902
2903 test -n "$cross_prefix" && enable cross_compile
2904
2905 if enabled cross_compile; then
2906 test -n "$arch" && test -n "$target_os" ||
2907 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2908 fi
2909
2910 ar_default="${cross_prefix}${ar_default}"
2911 cc_default="${cross_prefix}${cc_default}"
2912 occ_default="${cross_prefix}${occ_default}"
2913 nm_default="${cross_prefix}${nm_default}"
2914 pkg_config_default="${cross_prefix}${pkg_config_default}"
2915 ranlib="${cross_prefix}${ranlib}"
2916 strip="${cross_prefix}${strip}"
2917
2918 sysinclude_default="${sysroot}/usr/include"
2919
2920 set_default arch cc pkg_config sysinclude target_exec target_os
2921 enabled cross_compile || host_cc_default=$cc
2922 set_default host_cc
2923
2924 if ! $pkg_config --version >/dev/null 2>&1; then
2925 warn "$pkg_config not found, library detection may fail."
2926 pkg_config=false
2927 fi
2928
2929 exesuf() {
2930 case $1 in
2931 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2932 esac
2933 }
2934
2935 EXESUF=$(exesuf $target_os)
2936 HOSTEXESUF=$(exesuf $host_os)
2937
2938 # set temporary file name
2939 : ${TMPDIR:=$TEMPDIR}
2940 : ${TMPDIR:=$TMP}
2941 : ${TMPDIR:=/tmp}
2942
2943 if ! check_cmd mktemp -u XXXXXX; then
2944 # simple replacement for missing mktemp
2945 # NOT SAFE FOR GENERAL USE
2946 mktemp(){
2947 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2948 }
2949 fi
2950
2951 tmpfile(){
2952 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2953 (set -C; exec > $tmp) 2>/dev/null ||
2954 die "Unable to create temporary file in $TMPDIR."
2955 append TMPFILES $tmp
2956 eval $1=$tmp
2957 }
2958
2959 trap 'rm -f -- $TMPFILES' EXIT
2960
2961 tmpfile TMPASM .asm
2962 tmpfile TMPC .c
2963 tmpfile TMPE $EXESUF
2964 tmpfile TMPH .h
2965 tmpfile TMPO .o
2966 tmpfile TMPS .S
2967 tmpfile TMPSH .sh
2968 tmpfile TMPV .ver
2969
2970 unset -f mktemp
2971
2972 chmod +x $TMPE
2973
2974 # make sure we can execute files in $TMPDIR
2975 cat > $TMPSH 2>> $logfile <<EOF
2976 #! /bin/sh
2977 EOF
2978 chmod +x $TMPSH >> $logfile 2>&1
2979 if ! $TMPSH >> $logfile 2>&1; then
2980 cat <<EOF
2981 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2982 variable to another directory and make sure that it is not mounted noexec.
2983 EOF
2984 die "Sanity test failed."
2985 fi
2986
2987 armasm_flags(){
2988 for flag; do
2989 case $flag in
2990 # Filter out MSVC cl.exe options from cflags that shouldn't
2991 # be passed to gas-preprocessor
2992 -M[TD]*) ;;
2993 *) echo $flag ;;
2994 esac
2995 done
2996 }
2997
2998 ccc_flags(){
2999 for flag; do
3000 case $flag in
3001 -std=c99) echo -c99 ;;
3002 -mcpu=*) echo -arch ${flag#*=} ;;
3003 -mieee) echo -ieee ;;
3004 -O*|-fast) echo $flag ;;
3005 -fno-math-errno) echo -assume nomath_errno ;;
3006 -g) echo -g3 ;;
3007 -Wall) echo -msg_enable level2 ;;
3008 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3009 -Wl,*) echo $flag ;;
3010 -f*|-W*) ;;
3011 *) echo $flag ;;
3012 esac
3013 done
3014 }
3015
3016 cparser_flags(){
3017 for flag; do
3018 case $flag in
3019 -Wno-switch) echo -Wno-switch-enum ;;
3020 -Wno-format-zero-length) ;;
3021 -Wdisabled-optimization) ;;
3022 -Wno-pointer-sign) echo -Wno-other ;;
3023 *) echo $flag ;;
3024 esac
3025 done
3026 }
3027
3028 msvc_common_flags(){
3029 for flag; do
3030 case $flag in
3031 # In addition to specifying certain flags under the compiler
3032 # specific filters, they must be specified here as well or else the
3033 # generic catch all at the bottom will print the original flag.
3034 -Wall) ;;
3035 -std=c99) ;;
3036 # Common flags
3037 -fomit-frame-pointer) ;;
3038 -g) echo -Z7 ;;
3039 -fno-math-errno) ;;
3040 -fno-common) ;;
3041 -fno-signed-zeros) ;;
3042 -fPIC) ;;
3043 -mthumb) ;;
3044 -march=*) ;;
3045 -lz) echo zlib.lib ;;
3046 -lavicap32) echo vfw32.lib user32.lib ;;
3047 -lx264) echo libx264.lib ;;
3048 -l*) echo ${flag#-l}.lib ;;
3049 -L*) echo -libpath:${flag#-L} ;;
3050 *) echo $flag ;;
3051 esac
3052 done
3053 }
3054
3055 msvc_flags(){
3056 msvc_common_flags "$@"
3057 for flag; do
3058 case $flag in
3059 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3060 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3061 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3062 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3063 esac
3064 done
3065 }
3066
3067 icl_flags(){
3068 msvc_common_flags "$@"
3069 for flag; do
3070 case $flag in
3071 # Despite what Intel's documentation says -Wall, which is supported
3072 # on Windows, does enable remarks so disable them here.
3073 -Wall) echo $flag -Qdiag-disable:remark ;;
3074 -std=c99) echo -Qstd=c99 ;;
3075 esac
3076 done
3077 }
3078
3079 pgi_flags(){
3080 for flag; do
3081 case $flag in
3082 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3083 -fomit-frame-pointer) echo -Mnoframe ;;
3084 -g) echo -gopt ;;
3085 *) echo $flag ;;
3086 esac
3087 done
3088 }
3089
3090 suncc_flags(){
3091 for flag; do
3092 case $flag in
3093 -march=*|-mcpu=*)
3094 case "${flag#*=}" in
3095 native) echo -xtarget=native ;;
3096 v9|niagara) echo -xarch=sparc ;;
3097 ultrasparc) echo -xarch=sparcvis ;;
3098 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3099 i586|pentium) echo -xchip=pentium ;;
3100 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3101 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3102 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3103 pentium4*) echo -xtarget=pentium4 ;;
3104 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3105 *-sse3) echo -xarch=sse3 ;;
3106 core2) echo -xarch=ssse3 -xchip=core2 ;;
3107 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3108 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3109 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3110 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3111 k8|opteron|athlon64|athlon-fx)
3112 echo -xarch=sse2a ;;
3113 athlon*) echo -xarch=pentium_proa ;;
3114 esac
3115 ;;
3116 -std=c99) echo -xc99 ;;
3117 -fomit-frame-pointer) echo -xregs=frameptr ;;
3118 -fPIC) echo -KPIC -xcode=pic32 ;;
3119 -W*,*) echo $flag ;;
3120 -f*-*|-W*|-mimpure-text) ;;
3121 -shared) echo -G ;;
3122 *) echo $flag ;;
3123 esac
3124 done
3125 }
3126
3127 tms470_flags(){
3128 for flag; do
3129 case $flag in
3130 -march=*|-mcpu=*)
3131 case "${flag#*=}" in
3132 armv7-a|cortex-a*) echo -mv=7a8 ;;
3133 armv7-r|cortex-r*) echo -mv=7r4 ;;
3134 armv7-m|cortex-m*) echo -mv=7m3 ;;
3135 armv6*|arm11*) echo -mv=6 ;;
3136 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3137 echo -mv=5e ;;
3138 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3139 esac
3140 ;;
3141 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3142 -mfpu=vfp) echo --float_support=vfpv2 ;;
3143 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3144 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3145 -msoft-float) echo --float_support=vfplib ;;
3146 -O[0-3]|-mf=*) echo $flag ;;
3147 -g) echo -g -mn ;;
3148 -pds=*) echo $flag ;;
3149 -D*|-I*) echo $flag ;;
3150 --gcc|--abi=*) echo $flag ;;
3151 -me) echo $flag ;;
3152 esac
3153 done
3154 }
3155
3156 probe_cc(){
3157 pfx=$1
3158 _cc=$2
3159
3160 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3161 unset _ld_o _ldflags _ld_lib _ld_path
3162 unset _depflags _DEPCMD _DEPFLAGS
3163 _flags_filter=echo
3164
3165 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3166 _type=llvm_gcc
3167 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3168 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3169 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3170 _cflags_speed='-O3'
3171 _cflags_size='-Os'
3172 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3173 _type=gcc
3174 gcc_version=$($_cc --version | head -n1)
3175 gcc_basever=$($_cc -dumpversion)
3176 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3177 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3178 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3179 if ! $_cc -dumpversion | grep -q '^2\.'; then
3180 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3181 fi
3182 _cflags_speed='-O3'
3183 _cflags_size='-Os'
3184 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3185 _type=icc
3186 _ident=$($_cc --version | head -n1)
3187 _depflags='-MMD'
3188 _cflags_speed='-O3'
3189 _cflags_size='-Os'
3190 _cflags_noopt='-O1'
3191 elif $_cc -v 2>&1 | grep -q xlc; then
3192 _type=xlc
3193 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3194 _cflags_speed='-O5'
3195 _cflags_size='-O5 -qcompact'
3196 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3197 _type=ccc
3198 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3199 _DEPFLAGS='-M'
3200 _cflags_speed='-fast'
3201 _cflags_size='-O1'
3202 _flags_filter=ccc_flags
3203 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3204 test -d "$sysroot" || die "No valid sysroot specified."
3205 _type=armcc
3206 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3207 armcc_conf="$PWD/armcc.conf"
3208 $_cc --arm_linux_configure \
3209 --arm_linux_config_file="$armcc_conf" \
3210 --configure_sysroot="$sysroot" \
3211 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3212 die "Error creating armcc configuration file."
3213 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3214 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3215 as_default="${cross_prefix}gcc"
3216 _depflags='-MMD'
3217 _cflags_speed='-O3'
3218 _cflags_size='-Os'
3219 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3220 _type=tms470
3221 _ident=$($_cc -version | head -n1 | tr -s ' ')
3222 _flags='--gcc --abi=eabi -me'
3223 _cc_e='-ppl -fe=$@'
3224 _cc_o='-fe=$@'
3225 _depflags='-ppa -ppd=$(@:.o=.d)'
3226 _cflags_speed='-O3 -mf=5'
3227 _cflags_size='-O3 -mf=2'
3228 _flags_filter=tms470_flags
3229 elif $_cc -v 2>&1 | grep -q clang; then
3230 _type=clang
3231 _ident=$($_cc --version 2>/dev/null | head -n1)
3232 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3233 _cflags_speed='-O3'
3234 _cflags_size='-Os'
3235 elif $_cc -V 2>&1 | grep -q Sun; then
3236 _type=suncc
3237 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3238 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3239 _DEPFLAGS='-xM1 -xc99'
3240 _ldflags='-std=c99'
3241 _cflags_speed='-O5'
3242 _cflags_size='-O5 -xspace'
3243 _flags_filter=suncc_flags
3244 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3245 _type=pathscale
3246 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3247 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3248 _cflags_speed='-O2'
3249 _cflags_size='-Os'
3250 _flags_filter='filter_out -Wdisabled-optimization'
3251 elif $_cc -v 2>&1 | grep -q Open64; then
3252 _type=open64
3253 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3254 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3255 _cflags_speed='-O2'
3256 _cflags_size='-Os'
3257 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3258 elif $_cc -V 2>&1 | grep -q Portland; then
3259 _type=pgi
3260 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3261 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3262 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3263 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3264 _cflags_noopt="-O1"
3265 _flags_filter=pgi_flags
3266 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3267 _type=armasm
3268 _ident=$($_cc | head -n1)
3269 # 4509: "This form of conditional instruction is deprecated"
3270 _flags="-nologo -ignore 4509"
3271 _flags_filter=armasm_flags
3272 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3273 _type=msvc
3274 _ident=$($_cc 2>&1 | head -n1)
3275 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3276 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3277 _cflags_speed="-O2"
3278 _cflags_size="-O1"
3279 if $_cc -nologo- 2>&1 | grep -q Linker; then
3280 _ld_o='-out:$@'
3281 else
3282 _ld_o='-Fe$@'
3283 fi
3284 _cc_o='-Fo$@'
3285 _cc_e='-P -Fi$@'
3286 _flags_filter=msvc_flags
3287 _ld_lib='lib%.a'
3288 _ld_path='-libpath:'
3289 _flags='-nologo'
3290 elif $_cc 2>&1 | grep -q Intel; then
3291 _type=icl
3292 _ident=$($_cc 2>&1 | head -n1)
3293 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3294 # Not only is O3 broken on 13.x+ but it is slower on all previous
3295 # versions (tested) as well.
3296 _cflags_speed="-O2"
3297 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3298 if $_cc 2>&1 | grep -q Linker; then
3299 _ld_o='-out:$@'
3300 else
3301 _ld_o='-Fe$@'
3302 fi
3303 _cc_o='-Fo$@'
3304 _cc_e='-P'
3305 _flags_filter=icl_flags
3306 _ld_lib='lib%.a'
3307 _ld_path='-libpath:'
3308 # -Qdiag-error to make icl error when seeing certain unknown arguments
3309 _flags='-nologo -Qdiag-error:4044,10157'
3310 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3311 # with MSVC which enables it by default.
3312 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3313 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3314 # lld can emulate multiple different linkers; in ms link.exe mode,
3315 # the -? parameter gives the help output which contains an identifyable
3316 # string, while it gives an error in other modes.
3317 _type=lld-link
3318 # The link.exe mode doesn't have a switch for getting the version,
3319 # but we can force it back to gnu mode and get the version from there.
3320 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3321 _ld_o='-out:$@'
3322 _flags_filter=msvc_flags
3323 _ld_lib='lib%.a'
3324 _ld_path='-libpath:'
3325 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3326 _type=cparser
3327 _ident=$($_cc --version | head -n1)
3328 _depflags='-MMD'
3329 _cflags_speed='-O4'
3330 _cflags_size='-O2'
3331 _flags_filter=cparser_flags
3332 fi
3333
3334 eval ${pfx}_type=\$_type
3335 eval ${pfx}_ident=\$_ident
3336 }
3337
3338 set_ccvars(){
3339 eval ${1}_C=\${_cc_c-\${${1}_C}}
3340 eval ${1}_E=\${_cc_e-\${${1}_E}}
3341 eval ${1}_O=\${_cc_o-\${${1}_O}}
3342
3343 if [ -n "$_depflags" ]; then
3344 eval ${1}_DEPFLAGS=\$_depflags
3345 else
3346 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3347 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3348 eval DEP${1}FLAGS=\$_flags
3349 fi
3350 }
3351
3352 probe_cc cc "$cc"
3353 cflags_filter=$_flags_filter
3354 cflags_speed=$_cflags_speed
3355 cflags_size=$_cflags_size
3356 cflags_noopt=$_cflags_noopt
3357 add_cflags $_flags $_cflags
3358 cc_ldflags=$_ldflags
3359 set_ccvars CC
3360
3361 probe_cc hostcc "$host_cc"
3362 host_cflags_filter=$_flags_filter
3363 add_host_cflags $_flags $_cflags
3364 set_ccvars HOSTCC
3365
3366 test -n "$cc_type" && enable $cc_type ||
3367 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3368
3369 : ${as_default:=$cc}
3370 : ${objcc_default:=$cc}
3371 : ${dep_cc_default:=$cc}
3372 : ${ld_default:=$cc}
3373 : ${host_ld_default:=$host_cc}
3374 set_default ar as objcc dep_cc ld host_ld
3375
3376 probe_cc as "$as"
3377 asflags_filter=$_flags_filter
3378 add_asflags $_flags $_cflags
3379 set_ccvars AS
3380
3381 probe_cc objcc "$objcc"
3382 objcflags_filter=$_flags_filter
3383 add_objcflags $_flags $_cflags
3384 set_ccvars OBJC
3385
3386 probe_cc ld "$ld"
3387 ldflags_filter=$_flags_filter
3388 add_ldflags $_flags $_ldflags
3389 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3390 LD_O=${_ld_o-$LD_O}
3391 LD_LIB=${_ld_lib-$LD_LIB}
3392 LD_PATH=${_ld_path-$LD_PATH}
3393
3394 probe_cc hostld "$host_ld"
3395 host_ldflags_filter=$_flags_filter
3396 add_host_ldflags $_flags $_ldflags
3397 HOSTLD_O=${_ld_o-$HOSTLD_O}
3398
3399 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3400 probe_cc depcc "$dep_cc"
3401 CCDEP=${_DEPCMD:-$DEPCMD}
3402 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3403 DEPCCFLAGS=$_flags
3404 fi
3405
3406 if $ar 2>&1 | grep -q Microsoft; then
3407 arflags="-nologo"
3408 ar_o='-out:$@'
3409 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3410 arflags="rq"
3411 ar_o='$@'
3412 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3413 arflags='-Xany -r -c'
3414 ar_o='$@'
3415 else
3416 arflags="rc"
3417 ar_o='$@'
3418 fi
3419
3420 add_cflags $extra_cflags
3421 add_objcflags $extra_objcflags
3422 add_asflags $extra_cflags
3423
3424 if test -n "$sysroot"; then
3425 case "$cc_type" in
3426 gcc|llvm_gcc|clang)
3427 add_cppflags --sysroot="$sysroot"
3428 add_ldflags --sysroot="$sysroot"
3429 ;;
3430 tms470)
3431 add_cppflags -I"$sysinclude"
3432 add_ldflags --sysroot="$sysroot"
3433 ;;
3434 esac
3435 fi
3436
3437 if test "$cpu" = host; then
3438 enabled cross_compile &&
3439 die "--cpu=host makes no sense when cross-compiling."
3440
3441 case "$cc_type" in
3442 gcc|llvm_gcc)
3443 check_native(){
3444 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3445 sed -n "/cc1.*$1=/{
3446 s/.*$1=\\([^ ]*\\).*/\\1/
3447 p
3448 q
3449 }" $TMPE
3450 }
3451 cpu=$(check_native -march || check_native -mcpu)
3452 ;;
3453 esac
3454
3455 test "${cpu:-host}" = host &&
3456 die "--cpu=host not supported with compiler $cc"
3457 fi
3458
3459 # Deal with common $arch aliases
3460 case "$arch" in
3461 aarch64|arm64)
3462 arch="aarch64"
3463 ;;
3464 arm*)
3465 arch="arm"
3466 ;;
3467 mips*|IP*)
3468 case "$arch" in
3469 *el)
3470 add_cppflags -EL
3471 add_ldflags -EL
3472 ;;
3473 *eb)
3474 add_cppflags -EB
3475 add_ldflags -EB
3476 ;;
3477 esac
3478 arch="mips"
3479 ;;
3480 parisc*|hppa*)
3481 arch="parisc"
3482 ;;
3483 "Power Macintosh"|ppc*|powerpc*)
3484 arch="ppc"
3485 ;;
3486 s390|s390x)
3487 arch="s390"
3488 ;;
3489 sh4|sh)
3490 arch="sh4"
3491 ;;
3492 sun4u|sparc*)
3493 arch="sparc"
3494 ;;
3495 tilegx|tile-gx)
3496 arch="tilegx"
3497 ;;
3498 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3499 arch="x86"
3500 ;;
3501 esac
3502
3503 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3504 enable $arch
3505
3506 # Add processor-specific flags
3507 if enabled aarch64; then
3508
3509 case $cpu in
3510 armv*)
3511 cpuflags="-march=$cpu"
3512 ;;
3513 *)
3514 cpuflags="-mcpu=$cpu"
3515 ;;
3516 esac
3517
3518 elif enabled alpha; then
3519
3520 cpuflags="-mcpu=$cpu"
3521
3522 elif enabled arm; then
3523
3524 check_arm_arch() {
3525 check_cpp_condition stddef.h \
3526 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3527 $cpuflags
3528 }
3529
3530 probe_arm_arch() {
3531 if check_arm_arch 4; then echo armv4
3532 elif check_arm_arch 4T; then echo armv4t
3533 elif check_arm_arch 5; then echo armv5
3534 elif check_arm_arch 5E; then echo armv5e
3535 elif check_arm_arch 5T; then echo armv5t
3536 elif check_arm_arch 5TE; then echo armv5te
3537 elif check_arm_arch 5TEJ; then echo armv5te
3538 elif check_arm_arch 6; then echo armv6
3539 elif check_arm_arch 6J; then echo armv6j
3540 elif check_arm_arch 6K; then echo armv6k
3541 elif check_arm_arch 6Z; then echo armv6z
3542 elif check_arm_arch 6ZK; then echo armv6zk
3543 elif check_arm_arch 6T2; then echo armv6t2
3544 elif check_arm_arch 7; then echo armv7
3545 elif check_arm_arch 7A 7_A; then echo armv7-a
3546 elif check_arm_arch 7S; then echo armv7-a
3547 elif check_arm_arch 7R 7_R; then echo armv7-r
3548 elif check_arm_arch 7M 7_M; then echo armv7-m
3549 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3550 elif check_arm_arch 8A 8_A; then echo armv8-a
3551 fi
3552 }
3553
3554 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3555
3556 case $cpu in
3557 armv*)
3558 cpuflags="-march=$cpu"
3559 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3560 ;;
3561 *)
3562 cpuflags="-mcpu=$cpu"
3563 case $cpu in
3564 cortex-a*) subarch=armv7a ;;
3565 cortex-r*) subarch=armv7r ;;
3566 cortex-m*) enable thumb; subarch=armv7m ;;
3567 arm11*) subarch=armv6 ;;
3568 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3569 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3570 *) subarch=$(probe_arm_arch) ;;
3571 esac
3572 ;;
3573 esac
3574
3575 case "$subarch" in
3576 armv5t*) enable fast_clz ;;
3577 armv[6-8]*) enable fast_clz fast_unaligned ;;
3578 esac
3579
3580 elif enabled avr32; then
3581
3582 case $cpu in
3583 ap7[02]0[0-2])
3584 subarch="avr32_ap"
3585 cpuflags="-mpart=$cpu"
3586 ;;
3587 ap)
3588 subarch="avr32_ap"
3589 cpuflags="-march=$cpu"
3590 ;;
3591 uc3[ab]*)
3592 subarch="avr32_uc"
3593 cpuflags="-mcpu=$cpu"
3594 ;;
3595 uc)
3596 subarch="avr32_uc"
3597 cpuflags="-march=$cpu"
3598 ;;
3599 esac
3600
3601 elif enabled bfin; then
3602
3603 cpuflags="-mcpu=$cpu"
3604
3605 elif enabled mips; then
3606
3607 cpuflags="-march=$cpu"
3608
3609 elif enabled ppc; then
3610
3611 disable ldbrx
3612
3613 case $(tolower $cpu) in
3614 601|ppc601|powerpc601)
3615 cpuflags="-mcpu=601"
3616 disable altivec
3617 ;;
3618 603*|ppc603*|powerpc603*)
3619 cpuflags="-mcpu=603"
3620 disable altivec
3621 ;;
3622 604*|ppc604*|powerpc604*)
3623 cpuflags="-mcpu=604"
3624 disable altivec
3625 ;;
3626 g3|75*|ppc75*|powerpc75*)
3627 cpuflags="-mcpu=750"
3628 disable altivec
3629 ;;
3630 g4|745*|ppc745*|powerpc745*)
3631 cpuflags="-mcpu=7450"
3632 disable vsx
3633 ;;
3634 74*|ppc74*|powerpc74*)
3635 cpuflags="-mcpu=7400"
3636 disable vsx
3637 ;;
3638 g5|970|ppc970|powerpc970)
3639 cpuflags="-mcpu=970"
3640 disable vsx
3641 ;;
3642 power[3-6]*)
3643 cpuflags="-mcpu=$cpu"
3644 disable vsx
3645 ;;
3646 power[7-8]*)
3647 cpuflags="-mcpu=$cpu"
3648 enable ldbrx
3649 ;;
3650 cell)
3651 cpuflags="-mcpu=cell"
3652 enable ldbrx
3653 disable vsx
3654 ;;
3655 e500mc)
3656 cpuflags="-mcpu=e500mc"
3657 disable altivec
3658 ;;
3659 e500v2)
3660 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3661 disable altivec
3662 disable dcbzl
3663 ;;
3664 e500)
3665 cpuflags="-mcpu=8540 -mhard-float"
3666 disable altivec
3667 disable dcbzl
3668 ;;
3669 esac
3670
3671 elif enabled sparc; then
3672
3673 case $cpu in
3674 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3675 cpuflags="-mcpu=$cpu"
3676 ;;
3677 ultrasparc*|niagara[234])
3678 cpuflags="-mcpu=$cpu"
3679 ;;
3680 esac
3681
3682 elif enabled x86; then
3683
3684 case $cpu in
3685 i[345]86|pentium)
3686 cpuflags="-march=$cpu"
3687 disable i686
3688 disable mmx
3689 ;;
3690 # targets that do NOT support nopl and conditional mov (cmov)
3691 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3692 cpuflags="-march=$cpu"
3693 disable i686
3694 ;;
3695 # targets that do support nopl and conditional mov (cmov)
3696 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3697 cpuflags="-march=$cpu"
3698 enable i686
3699 enable fast_cmov
3700 ;;
3701 # targets that do support conditional mov but on which it's slow
3702 pentium4|pentium4m|prescott|nocona)
3703 cpuflags="-march=$cpu"
3704 enable i686
3705 disable fast_cmov
3706 ;;
3707 esac
3708
3709 fi
3710
3711 if [ "$cpu" != generic ]; then
3712 add_cflags $cpuflags
3713 add_asflags $cpuflags
3714 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3715 fi
3716
3717 # compiler sanity check
3718 check_exec <<EOF
3719 int main(void){ return 0; }
3720 EOF
3721 if test "$?" != 0; then
3722 echo "$cc is unable to create an executable file."
3723 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3724 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3725 echo "Only do this if you know what cross compiling means."
3726 fi
3727 die "C compiler test failed."
3728 fi
3729
3730 add_cppflags -D_ISOC99_SOURCE
3731
3732 # some compilers silently accept -std=c11, so we also need to check that the
3733 # version macro is defined properly
3734 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3735 add_cflags -std=c11
3736 else
3737 check_cflags -std=c99
3738 fi
3739
3740 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3741 #include <stdlib.h>
3742 EOF
3743 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3744 #include <stdlib.h>
3745 EOF
3746
3747 add_host_cppflags -D_ISOC99_SOURCE
3748 check_host_cflags -std=c99
3749 check_host_cflags -Wall
3750 check_host_cflags -O3
3751
3752 check_64bit(){
3753 arch32=$1
3754 arch64=$2
3755 expr=$3
3756 check_code cc "" "int test[2*($expr) - 1]" &&
3757 subarch=$arch64 || subarch=$arch32
3758 }
3759
3760 case "$arch" in
3761 aarch64|alpha|ia64)
3762 spic=$shared
3763 ;;
3764 mips)
3765 check_64bit mips mips64 '_MIPS_SIM > 1'
3766 spic=$shared
3767 ;;
3768 parisc)
3769 check_64bit parisc parisc64 'sizeof(void *) > 4'
3770 spic=$shared
3771 ;;
3772 ppc)
3773 check_64bit ppc ppc64 'sizeof(void *) > 4'
3774 spic=$shared
3775 ;;
3776 s390)
3777 check_64bit s390 s390x 'sizeof(void *) > 4'
3778 spic=$shared
3779 ;;
3780 sparc)
3781 check_64bit sparc sparc64 'sizeof(void *) > 4'
3782 spic=$shared
3783 ;;
3784 x86)
3785 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3786 if test "$subarch" = "x86_64"; then
3787 spic=$shared
3788 fi
3789 ;;
3790 esac
3791
3792 enable $subarch
3793 enabled spic && enable_weak pic
3794
3795 # OS specific
3796 case $target_os in
3797 aix)
3798 SHFLAGS=-shared
3799 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3800 enabled shared && add_ldflags -Wl,-brtl
3801 ;;
3802 android)
3803 disable symver
3804 enable section_data_rel_ro
3805 SLIB_INSTALL_NAME='$(SLIBNAME)'
3806 SLIB_INSTALL_LINKS=
3807 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3808 ;;
3809 haiku)
3810 prefix_default="/boot/common"
3811 network_extralibs="-lnetwork"
3812 host_libs=
3813 ;;
3814 sunos)
3815 SHFLAGS='-shared -Wl,-h,$$(@F)'
3816 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3817 network_extralibs="-lsocket -lnsl"
3818 # When using suncc to build, the Solaris linker will mark
3819 # an executable with each instruction set encountered by
3820 # the Solaris assembler. As our libraries contain their own
3821 # guards for processor-specific code, instead suppress
3822 # generation of the HWCAPS ELF section on Solaris x86 only.
3823 enabled_all suncc x86 &&
3824 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3825 add_ldflags -Wl,-M,mapfile
3826 nm_default='nm -P -g'
3827 version_script='-M'
3828 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3829 ;;
3830 netbsd)
3831 disable symver
3832 oss_indev_extralibs="-lossaudio"
3833 oss_outdev_extralibs="-lossaudio"
3834 ;;
3835 openbsd|bitrig)
3836 disable symver
3837 SHFLAGS='-shared'
3838 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3839 SLIB_INSTALL_LINKS=
3840 oss_indev_extralibs="-lossaudio"
3841 oss_outdev_extralibs="-lossaudio"
3842 ;;
3843 dragonfly)
3844 disable symver
3845 ;;
3846 freebsd)
3847 ;;
3848 bsd/os)
3849 add_extralibs -lpoll -lgnugetopt
3850 ;;
3851 darwin)
3852 enabled ppc && add_asflags -force_cpusubtype_ALL
3853 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3854 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3855 add_ldflags -Wl,-dynamic,-search_paths_first
3856 SLIBSUF=".dylib"
3857 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3858 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3859 objformat="macho"
3860 enabled x86_64 && objformat="macho64"
3861 enabled_any pic shared ||
3862 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3863 check_header dispatch/dispatch.h &&
3864 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3865 ;;
3866 msys*)
3867 die "Native MSYS builds are discouraged, please use the MINGW environment."
3868 ;;
3869 mingw32*|mingw64*)
3870 if test $target_os = "mingw32ce"; then
3871 disable network
3872 else
3873 target_os=mingw32
3874 fi
3875 LIBTARGET=i386
3876 if enabled x86_64; then
3877 LIBTARGET="i386:x86-64"
3878 elif enabled arm; then
3879 LIBTARGET=arm-wince
3880 fi
3881 check_ldflags -Wl,--nxcompat
3882 check_ldflags -Wl,--dynamicbase
3883 shlibdir_default="$bindir_default"
3884 SLIBPREF=""
3885 SLIBSUF=".dll"
3886 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3887 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3888 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3889 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3890 SLIB_INSTALL_LINKS=
3891 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3892 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3893 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3894 objformat="win32"
3895 dlltool="${cross_prefix}dlltool"
3896 ranlib=:
3897 enable dos_paths
3898 ;;
3899 win32|win64)
3900 disable symver
3901 if enabled shared; then
3902 # Link to the import library instead of the normal static library
3903 # for shared libs.
3904 LD_LIB='%.lib'
3905 # Cannot build both shared and static libs with MSVC or icl.
3906 disable static
3907 fi
3908 shlibdir_default="$bindir_default"
3909 SLIBPREF=""
3910 SLIBSUF=".dll"
3911 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3912 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3913 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3914 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3915 SLIB_INSTALL_LINKS=
3916 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3917 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3918 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3919 objformat="win32"
3920 ranlib=:
3921 enable dos_paths
3922 ;;
3923 cygwin*)
3924 target_os=cygwin
3925 shlibdir_default="$bindir_default"
3926 SLIBPREF="cyg"
3927 SLIBSUF=".dll"
3928 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3929 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3930 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3931 SLIB_INSTALL_LINKS=
3932 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3933 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3934 objformat="win32"
3935 enable dos_paths
3936 ;;
3937 *-dos|freedos|opendos)
3938 network_extralibs="-lsocket"
3939 objformat="coff"
3940 enable dos_paths
3941 add_cppflags -U__STRICT_ANSI__
3942 ;;
3943 linux)
3944 enable dv1394
3945 enable section_data_rel_ro
3946 ;;
3947 irix*)
3948 target_os=irix
3949 ranlib="echo ignoring ranlib"
3950 ;;
3951 os/2*)
3952 ln_s="cp -f"
3953 objformat="aout"
3954 add_cppflags -D_GNU_SOURCE
3955 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3956 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3957 LIBSUF="_s.a"
3958 SLIBPREF=""
3959 SLIBSUF=".dll"
3960 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3961 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3962 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3963 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3964 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3965 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3966 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3967 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3968 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3969 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3970 enable dos_paths
3971 ;;
3972 gnu/kfreebsd)
3973 add_cppflags -D_BSD_SOURCE
3974 ;;
3975 gnu)
3976 ;;
3977 qnx)
3978 add_cppflags -D_QNX_SOURCE
3979 network_extralibs="-lsocket"
3980 ;;
3981 symbian)
3982 SLIBSUF=".dll"
3983 enable dos_paths
3984 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3985 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3986 add_ldflags -Wl,--target1-abs,--no-undefined \
3987 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3988 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3989 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3990 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3991 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3992 ;;
3993 osf1)
3994 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3995 ;;
3996 minix)
3997 ;;
3998 none)
3999 ;;
4000 *)
4001 die "Unknown OS '$target_os'."
4002 ;;
4003 esac
4004
4005 # determine libc flavour
4006
4007 probe_libc(){
4008 pfx=$1
4009 pfx_no_=${pfx%_}
4010 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4011 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4012 eval ${pfx}libc_type=uclibc
4013 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4014 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4015 eval ${pfx}libc_type=glibc
4016 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4017 # MinGW headers can be installed on Cygwin, so check for newlib first.
4018 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4019 eval ${pfx}libc_type=newlib
4020 add_${pfx}cppflags -U__STRICT_ANSI__
4021 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4022 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4023 eval ${pfx}libc_type=mingw64
4024 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4025 eval test \$${pfx_no_}cc_type = "gcc" &&
4026 add_${pfx}cppflags -D__printf__=__gnu_printf__
4027 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4028 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4029 eval ${pfx}libc_type=mingw32
4030 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4031 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4032 die "ERROR: MinGW32 runtime version must be >= 3.15."
4033 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4034 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4035 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4036 eval test \$${pfx_no_}cc_type = "gcc" &&
4037 add_${pfx}cppflags -D__printf__=__gnu_printf__
4038 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4039 eval ${pfx}libc_type=msvcrt
4040 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4041 if [ "$pfx" = host_ ]; then
4042 add_host_cppflags -Dsnprintf=_snprintf
4043 else
4044 add_compat strtod.o strtod=avpriv_strtod
4045 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4046 _snprintf=avpriv_snprintf \
4047 vsnprintf=avpriv_vsnprintf
4048 fi
4049 fi
4050 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4051 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4052 # 0x601 by default unless something else is set by the user.
4053 # This can easily lead to us detecting functions only present
4054 # in such new versions and producing binaries requiring windows 7.0.
4055 # Therefore explicitly set the default to XP unless the user has
4056 # set something else on the command line.
4057 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4058 # family. For these cases, configure is free to use any functions
4059 # found in the SDK headers by default. (Alternatively, we could force
4060 # _WIN32_WINNT to 0x0602 in that case.)
4061 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4062 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4063 #ifdef WINAPI_FAMILY
4064 #include <winapifamily.h>
4065 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4066 #error not desktop
4067 #endif
4068 #endif
4069 EOF
4070 if [ "$pfx" = "" ]; then
4071 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4072 fi
4073 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4074 eval ${pfx}libc_type=klibc
4075 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4076 eval ${pfx}libc_type=bionic
4077 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4078 eval ${pfx}libc_type=solaris
4079 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4080 else
4081 eval ${pfx}libc_type=default
4082 add_${pfx}cppflags -D_DEFAULT_SOURCE
4083 fi
4084 }
4085
4086 probe_libc
4087 test -n "$libc_type" && enable libc_$libc_type
4088 probe_libc host_
4089 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4090
4091 case $libc_type in
4092 bionic)
4093 add_compat strtod.o strtod=avpriv_strtod
4094 ;;
4095 esac
4096
4097 # hacks for compiler/libc/os combinations
4098
4099 if enabled_all tms470 libc_glibc; then
4100 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4101 add_cppflags -D__USER_LABEL_PREFIX__=
4102 add_cppflags -D__builtin_memset=memset
4103 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4104 add_cflags -pds=48 # incompatible redefinition of macro
4105 fi
4106
4107 if enabled_all ccc libc_glibc; then
4108 add_ldflags -Wl,-z,now # calls to libots crash without this
4109 fi
4110
4111 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4112 add_cppflags '-I\$(SRC_PATH)/compat/float'
4113
4114 esc(){
4115 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4116 }
4117
4118 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4119
4120 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4121
4122 set_default $PATHS_LIST
4123 set_default nm
4124
4125 # we need to build at least one lib type
4126 if ! enabled_any static shared; then
4127 cat <<EOF
4128 At least one library type must be built.
4129 Specify --enable-static to build the static libraries or --enable-shared to
4130 build the shared libraries as well. To only build the shared libraries specify
4131 --disable-static in addition to --enable-shared.
4132 EOF
4133 exit 1
4134 fi
4135
4136 disabled optimizations || check_cflags -fomit-frame-pointer
4137
4138 enable_weak_pic() {
4139 disabled pic && return
4140 enable pic
4141 add_cppflags -DPIC
4142 case "$target_os" in
4143 mingw*|cygwin*)
4144 ;;
4145 *)
4146 add_cflags -fPIC
4147 ;;
4148 esac
4149 add_asflags -fPIC
4150 }
4151
4152 enabled pic && enable_weak_pic
4153
4154 check_cc <<EOF || die "Symbol mangling check failed."
4155 int ff_extern;
4156 EOF
4157 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4158 extern_prefix=${sym%%ff_extern*}
4159
4160 check_cc <<EOF && enable_weak inline_asm
4161 void foo(void) { __asm__ volatile ("" ::); }
4162 EOF
4163
4164 _restrict=
4165 for restrict_keyword in restrict __restrict__ __restrict; do
4166 check_cc <<EOF && _restrict=$restrict_keyword && break
4167 void foo(char * $restrict_keyword p);
4168 EOF
4169 done
4170
4171 check_cc <<EOF && enable pragma_deprecated
4172 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4173 EOF
4174
4175 check_cc <<EOF && enable attribute_packed
4176 struct { int x; } __attribute__((packed)) x;
4177 EOF
4178
4179 check_cc <<EOF && enable attribute_may_alias
4180 union { int x; } __attribute__((may_alias)) x;
4181 EOF
4182
4183 check_cc <<EOF || die "endian test failed"
4184 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4185 EOF
4186 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4187
4188 check_gas() {
4189 log "check_gas using '$as' as AS"
4190 # :vararg is used on aarch64, arm and ppc altivec
4191 check_as <<EOF || return 1
4192 .macro m n, y:vararg=0
4193 \n: .int \y
4194 .endm
4195 m x
4196 EOF
4197 # .altmacro is only used in arm asm
4198 ! enabled arm || check_as <<EOF || return 1
4199 .altmacro
4200 EOF
4201 enable gnu_as
4202 return 0
4203 }
4204
4205 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4206 nogas=:
4207 enabled_any arm aarch64 && nogas=die
4208 enabled_all ppc altivec && nogas=warn
4209 as_noop=-v
4210
4211 case $as_type in
4212 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4213 gcc) gaspp_as_type=gas ;;
4214 *) gaspp_as_type=$as_type ;;
4215 esac
4216
4217 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4218
4219 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4220 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4221
4222 if ! check_gas ; then
4223 as=${gas:=$as}
4224 check_gas || \
4225 $nogas "GNU assembler not found, install/update gas-preprocessor"
4226 fi
4227
4228 check_as <<EOF && enable as_func
4229 .func test
4230 .endfunc
4231 EOF
4232 fi
4233
4234 check_inline_asm inline_asm_labels '"1:\n"'
4235
4236 if enabled aarch64; then
4237 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4238 # internal assembler in clang 3.3 does not support this instruction
4239 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4240 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4241
4242 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4243
4244 elif enabled alpha; then
4245
4246 check_cflags -mieee
4247
4248 elif enabled arm; then
4249
4250 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4251 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4252 enabled thumb && check_cflags -mthumb || check_cflags -marm
4253
4254 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4255 enable vfp_args
4256 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4257 enable vfp_args
4258 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4259 case "${cross_prefix:-$cc}" in
4260 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4261 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4262 __asm__ (".eabi_attribute 28, 1");
4263 int main(void) { return 0; }
4264 EOF
4265 esac
4266 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4267 fi
4268
4269 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4270 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4271 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4272 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4273 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4274 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4275
4276 [ $target_os = linux ] || [ $target_os = android ] ||
4277 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4278 $ARCH_EXT_LIST_ARM
4279
4280 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4281
4282 check_as <<EOF && enable as_dn_directive
4283 ra .dn d0.i16
4284 .unreq ra
4285 EOF
4286 check_as <<EOF && enable as_fpu_directive
4287 .fpu neon
4288 EOF
4289
4290 # llvm's integrated assembler supports .object_arch from llvm 3.5
4291 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4292 .object_arch armv4
4293 EOF
4294
4295 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4296
4297 elif enabled mips; then
4298
4299 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4300
4301 # make sure that only an instruction set is enabled
4302 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4303
4304 if enabled mips64; then
4305 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4306 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4307 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4308 else
4309 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4310 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4311 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4312 fi
4313
4314 elif enabled parisc; then
4315
4316 if enabled gcc; then
4317 case $($cc -dumpversion) in
4318 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4319 esac
4320 fi
4321
4322 elif enabled ppc; then
4323
4324 enable local_aligned_8 local_aligned_16 local_aligned_32
4325
4326 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4327 check_inline_asm ibm_asm '"add 0, 0, 0"'
4328 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4329 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4330
4331 # AltiVec flags: The FSF version of GCC differs from the Apple version
4332 if enabled altivec; then
4333 check_cflags -maltivec -mabi=altivec &&
4334 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4335 check_cflags -faltivec
4336
4337 # check if our compiler supports Motorola AltiVec C API
4338 check_cc <<EOF || disable altivec
4339 $inc_altivec_h
4340 int main(void) {
4341 vector signed int v1 = (vector signed int) { 0 };
4342 vector signed int v2 = (vector signed int) { 1 };
4343 v1 = vec_add(v1, v2);
4344 return 0;
4345 }
4346 EOF
4347
4348 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4349 fi
4350
4351 if enabled vsx; then
4352 check_cflags -mvsx &&
4353 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4354 fi
4355
4356 if enabled power8; then
4357 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4358 fi
4359
4360 elif enabled x86; then
4361
4362 check_builtin rdtsc intrin.h "__rdtsc()"
4363 check_builtin mm_empty mmintrin.h "_mm_empty()"
4364
4365 enable local_aligned_8 local_aligned_16 local_aligned_32
4366
4367 # check whether EBP is available on x86
4368 # As 'i' is stored on the stack, this program will crash
4369 # if the base pointer is used to access it because the
4370 # base pointer is cleared in the inline assembly code.
4371 check_exec_crash <<EOF && enable ebp_available
4372 volatile int i=0;
4373 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4374 return i;
4375 EOF