build: Separate avisynth and avxsynth 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_asflags(){
720 append ASFLAGS $($asflags_filter "$@")
721 }
722
723 add_objcflags(){
724 append OBJCFLAGS $($objcflags_filter "$@")
725 }
726
727 add_ldflags(){
728 append LDFLAGS $($ldflags_filter "$@")
729 }
730
731 add_ldexeflags(){
732 append LDEXEFLAGS $($ldflags_filter "$@")
733 }
734
735 add_stripflags(){
736 append STRIPFLAGS "$@"
737 }
738
739 add_extralibs(){
740 prepend extralibs $($ldflags_filter "$@")
741 }
742
743 add_host_cppflags(){
744 append host_cppflags "$@"
745 }
746
747 add_host_cflags(){
748 append host_cflags $($host_cflags_filter "$@")
749 }
750
751 add_host_ldflags(){
752 append host_ldflags $($host_ldflags_filter "$@")
753 }
754
755 add_compat(){
756 append compat_objs $1
757 shift
758 map 'add_cppflags -D$v' "$@"
759 }
760
761 check_cmd(){
762 log "$@"
763 "$@" >> $logfile 2>&1
764 }
765
766 cc_o(){
767 eval printf '%s\\n' $CC_O
768 }
769
770 cc_e(){
771 eval printf '%s\\n' $CC_E
772 }
773
774 check_cc(){
775 log check_cc "$@"
776 cat > $TMPC
777 log_file $TMPC
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
779 }
780
781 check_objcc(){
782 log check_objcc "$@"
783 cat > $TMPC
784 log_file $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
786 }
787
788 check_cpp(){
789 log check_cpp "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793 }
794
795 as_o(){
796 eval printf '%s\\n' $AS_O
797 }
798
799 check_as(){
800 log check_as "$@"
801 cat > $TMPS
802 log_file $TMPS
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804 }
805
806 check_inline_asm(){
807 log check_inline_asm "$@"
808 name="$1"
809 code="$2"
810 shift 2
811 disable $name
812 check_cc "$@" <<EOF && enable $name
813 void foo(void){ __asm__ volatile($code); }
814 EOF
815 }
816
817 check_insn(){
818 log check_insn "$@"
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
821 }
822
823 check_yasm(){
824 log check_yasm "$@"
825 echo "$1" > $TMPS
826 log_file $TMPS
827 shift 1
828 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
829 }
830
831 ld_o(){
832 eval printf '%s\\n' $LD_O
833 }
834
835 check_ld(){
836 log check_ld "$@"
837 flags=$(filter_out '-l*' "$@")
838 libs=$(filter '-l*' "$@")
839 check_cc $($cflags_filter $flags) || return
840 flags=$($ldflags_filter $flags)
841 libs=$($ldflags_filter $libs)
842 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
843 }
844
845 print_include(){
846 hdr=$1
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
850 }
851
852 check_code(){
853 log check_code "$@"
854 check=$1
855 headers=$2
856 code=$3
857 shift 3
858 {
859 for hdr in $headers; do
860 print_include $hdr
861 done
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
864 }
865
866 check_cppflags(){
867 log check_cppflags "$@"
868 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
869 int x;
870 EOF
871 }
872
873 test_cflags(){
874 log test_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_cc "$@" <<EOF
877 int x;
878 EOF
879 }
880
881 check_cflags(){
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
884 }
885
886 test_objcflags(){
887 log test_objcflags "$@"
888 set -- $($objcflags_filter "$@")
889 check_objcc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_objcflags(){
895 log check_objcflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
897 }
898
899 test_ldflags(){
900 log test_ldflags "$@"
901 check_ld "$@" <<EOF
902 int main(void){ return 0; }
903 EOF
904 }
905
906 check_ldflags(){
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
909 }
910
911 test_stripflags(){
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
914 check_cc <<EOF
915 int main(void) { return 0; }
916 EOF
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 }
919
920 check_stripflags(){
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
923 }
924
925 check_header(){
926 log check_header "$@"
927 header=$1
928 shift
929 disable_safe $header
930 check_cpp "$@" <<EOF && enable_safe $header
931 #include <$header>
932 int x;
933 EOF
934 }
935
936 check_func(){
937 log check_func "$@"
938 func=$1
939 shift
940 disable $func
941 check_ld "$@" <<EOF && enable $func
942 extern int $func();
943 int main(void){ $func(); }
944 EOF
945 }
946
947 check_mathfunc(){
948 log check_mathfunc "$@"
949 func=$1
950 narg=$2
951 shift 2
952 test $narg = 2 && args="f, g" || args="f"
953 disable $func
954 check_ld "$@" <<EOF && enable $func
955 #include <math.h>
956 float foo(float f, float g) { return $func($args); }
957 int main(void){ return 0; }
958 EOF
959 }
960
961 check_func_headers(){
962 log check_func_headers "$@"
963 headers=$1
964 funcs=$2
965 shift 2
966 {
967 for hdr in $headers; do
968 print_include $hdr
969 done
970 for func in $funcs; do
971 echo "long check_$func(void) { return (long) $func; }"
972 done
973 echo "int main(void) { return 0; }"
974 } | check_ld "$@" && enable $funcs && enable_safe $headers
975 }
976
977 check_cpp_condition(){
978 log check_cpp_condition "$@"
979 header=$1
980 condition=$2
981 shift 2
982 check_cpp "$@" <<EOF
983 #include <$header>
984 #if !($condition)
985 #error "unsatisfied condition: $condition"
986 #endif
987 EOF
988 }
989
990 test_cflags_cpp(){
991 log test_cflags_cpp "$@"
992 flags=$1
993 condition=$2
994 shift 2
995 set -- $($cflags_filter "$flags")
996 check_cpp "$@" <<EOF
997 #if !($condition)
998 #error "unsatisfied condition: $condition"
999 #endif
1000 EOF
1001 }
1002
1003 check_lib(){
1004 log check_lib "$@"
1005 headers="$1"
1006 funcs="$2"
1007 shift 2
1008 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1009 }
1010
1011 check_pkg_config(){
1012 log check_pkg_config "$@"
1013 pkg_version="$1"
1014 pkg="${1%% *}"
1015 headers="$2"
1016 funcs="$3"
1017 shift 3
1018 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1019 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1020 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1021 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1022 set_safe "${pkg}_cflags" $pkg_cflags &&
1023 set_safe "${pkg}_libs" $pkg_libs
1024 }
1025
1026 check_exec(){
1027 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1028 }
1029
1030 check_exec_crash(){
1031 log check_exec_crash "$@"
1032 code=$(cat)
1033
1034 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1035 # are safe but may not be available everywhere. Thus we use
1036 # raise(SIGTERM) instead. The check is run in a subshell so we
1037 # can redirect the "Terminated" message from the shell. SIGBUS
1038 # is not defined by standard C so it is used conditionally.
1039
1040 (check_exec "$@") >> $logfile 2>&1 <<EOF
1041 #include <signal.h>
1042 static void sighandler(int sig){
1043 raise(SIGTERM);
1044 }
1045 int foo(void){
1046 $code
1047 }
1048 int (*func_ptr)(void) = foo;
1049 int main(void){
1050 signal(SIGILL, sighandler);
1051 signal(SIGFPE, sighandler);
1052 signal(SIGSEGV, sighandler);
1053 #ifdef SIGBUS
1054 signal(SIGBUS, sighandler);
1055 #endif
1056 return func_ptr();
1057 }
1058 EOF
1059 }
1060
1061 check_type(){
1062 log check_type "$@"
1063 headers=$1
1064 type=$2
1065 shift 2
1066 disable_safe "$type"
1067 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1068 }
1069
1070 check_struct(){
1071 log check_struct "$@"
1072 headers=$1
1073 struct=$2
1074 member=$3
1075 shift 3
1076 disable_safe "${struct}_${member}"
1077 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1078 enable_safe "${struct}_${member}"
1079 }
1080
1081 check_builtin(){
1082 log check_builtin "$@"
1083 name=$1
1084 headers=$2
1085 builtin=$3
1086 shift 3
1087 disable "$name"
1088 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1089 }
1090
1091 check_compile_assert(){
1092 log check_compile_assert "$@"
1093 name=$1
1094 headers=$2
1095 condition=$3
1096 shift 3
1097 disable "$name"
1098 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1099 }
1100
1101 require(){
1102 log require "$@"
1103 name_version="$1"
1104 headers="$2"
1105 func="$3"
1106 shift 3
1107 check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1108 }
1109
1110 require_pkg_config(){
1111 log require_pkg_config "$@"
1112 pkg_version="$1"
1113 pkg="${1%% *}"
1114 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1115 add_cflags $(get_safe "${pkg}_cflags")
1116 add_extralibs $(get_safe "${pkg}_libs")
1117 }
1118
1119 hostcc_e(){
1120 eval printf '%s\\n' $HOSTCC_E
1121 }
1122
1123 hostcc_o(){
1124 eval printf '%s\\n' $HOSTCC_O
1125 }
1126
1127 check_host_cc(){
1128 log check_host_cc "$@"
1129 cat > $TMPC
1130 log_file $TMPC
1131 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1132 }
1133
1134 check_host_cpp(){
1135 log check_host_cpp "$@"
1136 cat > $TMPC
1137 log_file $TMPC
1138 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1139 }
1140
1141 check_host_cppflags(){
1142 log check_host_cppflags "$@"
1143 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1144 int x;
1145 EOF
1146 }
1147
1148 check_host_cflags(){
1149 log check_host_cflags "$@"
1150 set -- $($host_cflags_filter "$@")
1151 check_host_cc "$@" <<EOF && append host_cflags "$@"
1152 int x;
1153 EOF
1154 }
1155
1156 check_host_cpp_condition(){
1157 log check_host_cpp_condition "$@"
1158 header=$1
1159 condition=$2
1160 shift 2
1161 check_host_cpp "$@" <<EOF
1162 #include <$header>
1163 #if !($condition)
1164 #error "unsatisfied condition: $condition"
1165 #endif
1166 EOF
1167 }
1168
1169 apply(){
1170 file=$1
1171 shift
1172 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1173 }
1174
1175 cp_if_changed(){
1176 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1177 mkdir -p "$(dirname $2)"
1178 cp -f "$1" "$2"
1179 }
1180
1181 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1182 # system-dependent things.
1183
1184 AVCODEC_COMPONENTS="
1185 bsfs
1186 decoders
1187 encoders
1188 hwaccels
1189 parsers
1190 "
1191
1192 AVDEVICE_COMPONENTS="
1193 indevs
1194 outdevs
1195 "
1196 AVFILTER_COMPONENTS="
1197 filters
1198 "
1199 AVFORMAT_COMPONENTS="
1200 demuxers
1201 muxers
1202 protocols
1203 "
1204
1205 AVRESAMPLE_COMPONENTS=""
1206 AVUTIL_COMPONENTS=""
1207
1208 COMPONENT_LIST="
1209 $AVCODEC_COMPONENTS
1210 $AVDEVICE_COMPONENTS
1211 $AVFILTER_COMPONENTS
1212 $AVFORMAT_COMPONENTS
1213 $AVRESAMPLE_COMPONENTS
1214 $AVUTIL_COMPONENTS
1215 "
1216
1217 EXAMPLE_LIST="
1218 decode_audio_example
1219 decode_video_example
1220 encode_audio_example
1221 encode_video_example
1222 filter_audio_example
1223 metadata_example
1224 output_example
1225 qsvdec_example
1226 transcode_aac_example
1227 "
1228
1229 HWACCEL_LIBRARY_NONFREE_LIST="
1230 cuda
1231 libnpp
1232 "
1233 HWACCEL_LIBRARY_LIST="
1234 $HWACCEL_LIBRARY_NONFREE_LIST
1235 d3d11va
1236 dxva2
1237 libmfx
1238 mmal
1239 nvenc
1240 omx
1241 vaapi
1242 vda
1243 vdpau
1244 "
1245
1246 EXTERNAL_LIBRARY_GPL_LIST="
1247 libcdio
1248 libx264
1249 libx265
1250 libxavs
1251 libxvid
1252 "
1253
1254 EXTERNAL_LIBRARY_NONFREE_LIST="
1255 libfaac
1256 libfdk_aac
1257 openssl
1258 "
1259
1260 EXTERNAL_LIBRARY_VERSION3_LIST="
1261 libopencore_amrnb
1262 libopencore_amrwb
1263 libvo_aacenc
1264 libvo_amrwbenc
1265 "
1266
1267 EXTERNAL_LIBRARY_LIST="
1268 $EXTERNAL_LIBRARY_GPL_LIST
1269 $EXTERNAL_LIBRARY_NONFREE_LIST
1270 $EXTERNAL_LIBRARY_VERSION3_LIST
1271 avisynth
1272 avxsynth
1273 bzlib
1274 frei0r
1275 gnutls
1276 libbs2b
1277 libdc1394
1278 libdcadec
1279 libfontconfig
1280 libfreetype
1281 libgsm
1282 libhdcd
1283 libilbc
1284 libkvazaar
1285 libmp3lame
1286 libopencv
1287 libopenh264
1288 libopenjpeg
1289 libopus
1290 libpulse
1291 librtmp
1292 libschroedinger
1293 libsnappy
1294 libspeex
1295 libtheora
1296 libtwolame
1297 libvorbis
1298 libvpx
1299 libwavpack
1300 libwebp
1301 libxcb
1302 libxcb_shm
1303 libxcb_xfixes
1304 zlib
1305 "
1306
1307 FEATURE_LIST="
1308 gray
1309 hardcoded_tables
1310 omx_rpi
1311 runtime_cpudetect
1312 safe_bitstream_reader
1313 shared
1314 small
1315 sram
1316 static
1317 swscale_alpha
1318 "
1319
1320 LIBRARY_LIST="
1321 avcodec
1322 avdevice
1323 avfilter
1324 avformat
1325 avresample
1326 avutil
1327 swscale
1328 "
1329
1330 LICENSE_LIST="
1331 gpl
1332 nonfree
1333 version3
1334 "
1335
1336 PROGRAM_LIST="
1337 avconv
1338 avplay
1339 avprobe
1340 "
1341
1342 SUBSYSTEM_LIST="
1343 dct
1344 doc
1345 error_resilience
1346 faan
1347 fft
1348 lsp
1349 lzo
1350 mdct
1351 network
1352 rdft
1353 "
1354
1355 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1356 CONFIG_LIST="
1357 $EXAMPLE_LIST
1358 $EXTERNAL_LIBRARY_LIST
1359 $HWACCEL_LIBRARY_LIST
1360 $FEATURE_LIST
1361 $LICENSE_LIST
1362 $LIBRARY_LIST
1363 $PROGRAM_LIST
1364 $SUBSYSTEM_LIST
1365 neon_clobber_test
1366 pic
1367 pod2man
1368 texi2html
1369 thumb
1370 valgrind_backtrace
1371 xmm_clobber_test
1372 $COMPONENT_LIST
1373 "
1374
1375 THREADS_LIST="
1376 pthreads
1377 w32threads
1378 "
1379
1380 ATOMICS_LIST="
1381 atomics_gcc
1382 atomics_suncc
1383 atomics_win32
1384 "
1385
1386 ARCH_LIST="
1387 aarch64
1388 alpha
1389 arm
1390 avr32
1391 avr32_ap
1392 avr32_uc
1393 bfin
1394 ia64
1395 m68k
1396 mips
1397 mips64
1398 parisc
1399 ppc
1400 ppc64
1401 s390
1402 sh4
1403 sparc
1404 sparc64
1405 tilegx
1406 tilepro
1407 tomi
1408 x86
1409 x86_32
1410 x86_64
1411 "
1412
1413 ARCH_EXT_LIST_ARM="
1414 armv5te
1415 armv6
1416 armv6t2
1417 armv8
1418 neon
1419 vfp
1420 vfpv3
1421 "
1422
1423 ARCH_EXT_LIST_X86_SIMD="
1424 amd3dnow
1425 amd3dnowext
1426 avx
1427 avx2
1428 fma3
1429 fma4
1430 mmx
1431 mmxext
1432 sse
1433 sse2
1434 sse3
1435 sse4
1436 sse42
1437 ssse3
1438 xop
1439 "
1440
1441 ARCH_EXT_LIST_PPC="
1442 altivec
1443 dcbzl
1444 ldbrx
1445 power8
1446 ppc4xx
1447 vsx
1448 "
1449
1450 ARCH_EXT_LIST_X86="
1451 $ARCH_EXT_LIST_X86_SIMD
1452 cpunop
1453 i686
1454 "
1455
1456 ARCH_EXT_LIST_MIPS="
1457 loongson
1458 mips32r1
1459 mips64r1
1460 mips32r2
1461 mips64r2
1462 mips32r6
1463 mips64r6
1464 "
1465
1466 ARCH_EXT_LIST="
1467 $ARCH_EXT_LIST_ARM
1468 $ARCH_EXT_LIST_MIPS
1469 $ARCH_EXT_LIST_PPC
1470 $ARCH_EXT_LIST_X86
1471 vis
1472 "
1473
1474 ARCH_FEATURES="
1475 aligned_stack
1476 fast_64bit
1477 fast_clz
1478 fast_cmov
1479 local_aligned_8
1480 local_aligned_16
1481 local_aligned_32
1482 simd_align_16
1483 simd_align_32
1484 "
1485
1486 BUILTIN_LIST="
1487 atomic_cas_ptr
1488 machine_rw_barrier
1489 MemoryBarrier
1490 mm_empty
1491 rdtsc
1492 sem_timedwait
1493 sync_val_compare_and_swap
1494 "
1495 HAVE_LIST_CMDLINE="
1496 inline_asm
1497 symver
1498 yasm
1499 "
1500
1501 HAVE_LIST_PUB="
1502 bigendian
1503 fast_unaligned
1504 "
1505
1506 HEADERS_LIST="
1507 AVFoundation_AVFoundation_h
1508 alsa_asoundlib_h
1509 altivec_h
1510 arpa_inet_h
1511 cdio_paranoia_h
1512 cdio_paranoia_paranoia_h
1513 dispatch_dispatch_h
1514 dev_bktr_ioctl_bt848_h
1515 dev_bktr_ioctl_meteor_h
1516 dev_ic_bt8xx_h
1517 dev_video_bktr_ioctl_bt848_h
1518 dev_video_meteor_ioctl_meteor_h
1519 direct_h
1520 dlfcn_h
1521 d3d11_h
1522 dxva_h
1523 gsm_h
1524 io_h
1525 mach_mach_time_h
1526 machine_ioctl_bt848_h
1527 machine_ioctl_meteor_h
1528 malloc_h
1529 poll_h
1530 sndio_h
1531 soundcard_h
1532 stdatomic_h
1533 sys_mman_h
1534 sys_param_h
1535 sys_resource_h
1536 sys_select_h
1537 sys_soundcard_h
1538 sys_time_h
1539 sys_un_h
1540 sys_videoio_h
1541 unistd_h
1542 valgrind_valgrind_h
1543 windows_h
1544 winsock2_h
1545 "
1546
1547 INTRINSICS_LIST="
1548 intrinsics_neon
1549 "
1550
1551 MATH_FUNCS="
1552 atanf
1553 atan2f
1554 cbrtf
1555 cosf
1556 exp2
1557 exp2f
1558 expf
1559 isinf
1560 isnan
1561 ldexpf
1562 llrint
1563 llrintf
1564 log2
1565 log2f
1566 log10f
1567 lrint
1568 lrintf
1569 powf
1570 rint
1571 round
1572 roundf
1573 sinf
1574 trunc
1575 truncf
1576 "
1577
1578 SYSTEM_FUNCS="
1579 aligned_malloc
1580 clock_gettime
1581 closesocket
1582 CommandLineToArgvW
1583 CoTaskMemFree
1584 CryptGenRandom
1585 dlopen
1586 fcntl
1587 flt_lim
1588 fork
1589 getaddrinfo
1590 gethrtime
1591 getopt
1592 GetProcessAffinityMask
1593 GetProcessMemoryInfo
1594 GetProcessTimes
1595 getrusage
1596 GetSystemTimeAsFileTime
1597 gettimeofday
1598 gmtime_r
1599 inet_aton
1600 isatty
1601 jack_port_get_latency_range
1602 LoadLibrary
1603 localtime_r
1604 mach_absolute_time
1605 MapViewOfFile
1606 memalign
1607 mkstemp
1608 mmap
1609 mprotect
1610 nanosleep
1611 posix_memalign
1612 sched_getaffinity
1613 SetConsoleTextAttribute
1614 setmode
1615 setrlimit
1616 Sleep
1617 strerror_r
1618 sysconf
1619 sysctl
1620 usleep
1621 VirtualAlloc
1622 "
1623
1624 TOOLCHAIN_FEATURES="
1625 as_dn_directive
1626 as_fpu_directive
1627 as_func
1628 as_object_arch
1629 asm_mod_q
1630 attribute_may_alias
1631 attribute_packed
1632 ebp_available
1633 ebx_available
1634 gnu_as
1635 ibm_asm
1636 inline_asm_labels
1637 pragma_deprecated
1638 symver_asm_label
1639 symver_gnu_asm
1640 vfp_args
1641 xform_asm
1642 xmm_clobbers
1643 "
1644
1645 TYPES_LIST="
1646 CONDITION_VARIABLE_Ptr
1647 socklen_t
1648 struct_addrinfo
1649 struct_group_source_req
1650 struct_ip_mreq_source
1651 struct_ipv6_mreq
1652 struct_pollfd
1653 struct_rusage_ru_maxrss
1654 struct_sockaddr_in6
1655 struct_sockaddr_sa_len
1656 struct_sockaddr_storage
1657 struct_v4l2_frmivalenum_discrete
1658 "
1659
1660 HAVE_LIST="
1661 $ARCH_EXT_LIST
1662 $(add_suffix _external $ARCH_EXT_LIST)
1663 $(add_suffix _inline $ARCH_EXT_LIST)
1664 $ARCH_FEATURES
1665 $BUILTIN_LIST
1666 $HAVE_LIST_CMDLINE
1667 $HAVE_LIST_PUB
1668 $HEADERS_LIST
1669 $INTRINSICS_LIST
1670 $MATH_FUNCS
1671 $SYSTEM_FUNCS
1672 $THREADS_LIST
1673 $TOOLCHAIN_FEATURES
1674 $TYPES_LIST
1675 dos_paths
1676 dxva2_lib
1677 libc_msvcrt
1678 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1679 sdl
1680 section_data_rel_ro
1681 threads
1682 vaapi_drm
1683 vaapi_x11
1684 vdpau_x11
1685 "
1686
1687 # options emitted with CONFIG_ prefix but not available on the command line
1688 CONFIG_EXTRA="
1689 aandcttables
1690 ac3dsp
1691 audio_frame_queue
1692 audiodsp
1693 blockdsp
1694 bswapdsp
1695 cabac
1696 dirac_parse
1697 dvprofile
1698 faandct
1699 faanidct
1700 fdctdsp
1701 flacdsp
1702 fmtconvert
1703 g722dsp
1704 gmp
1705 golomb
1706 gplv3
1707 h263dsp
1708 h264chroma
1709 h264dsp
1710 h264parse
1711 h264pred
1712 h264qpel
1713 hpeldsp
1714 huffman
1715 huffyuvdsp
1716 huffyuvencdsp
1717 idctdsp
1718 iirfilter
1719 imdct15
1720 intrax8
1721 iso_media
1722 ividsp
1723 jpegtables
1724 libx262
1725 lgplv3
1726 lpc
1727 lzf
1728 me_cmp
1729 mpeg_er
1730 mpegaudio
1731 mpegaudiodsp
1732 mpegaudioheader
1733 mpegvideo
1734 mpegvideoenc
1735 mss34dsp
1736 pixblockdsp
1737 qpeldsp
1738 qsv
1739 qsvdec
1740 qsvenc
1741 rangecoder
1742 riffdec
1743 riffenc
1744 rtpdec
1745 rtpenc_chain
1746 rv34dsp
1747 sinewin
1748 snappy
1749 srtp
1750 startcode
1751 texturedsp
1752 texturedspenc
1753 tpeldsp
1754 vaapi_encode
1755 vc1dsp
1756 videodsp
1757 vp3dsp
1758 vp56dsp
1759 vp8dsp
1760 wma_freqs
1761 wmv2dsp
1762 "
1763
1764 CMDLINE_SELECT="
1765 $ARCH_EXT_LIST
1766 $CONFIG_LIST
1767 $HAVE_LIST_CMDLINE
1768 $THREADS_LIST
1769 asm
1770 cross_compile
1771 debug
1772 extra_warnings
1773 logging
1774 lto
1775 optimizations
1776 rpath
1777 "
1778
1779 PATHS_LIST="
1780 bindir
1781 datadir
1782 docdir
1783 incdir
1784 libdir
1785 mandir
1786 prefix
1787 shlibdir
1788 "
1789
1790 CMDLINE_SET="
1791 $PATHS_LIST
1792 ar
1793 arch
1794 as
1795 cc
1796 objcc
1797 cpu
1798 cross_prefix
1799 custom_allocator
1800 dep_cc
1801 env
1802 extra_version
1803 host_cc
1804 host_cflags
1805 host_ld
1806 host_ldflags
1807 host_libs
1808 host_os
1809 ld
1810 logfile
1811 malloc_prefix
1812 nm
1813 optflags
1814 pkg_config
1815 pkg_config_flags
1816 random_seed
1817 samples
1818 sysinclude
1819 sysroot
1820 target_exec
1821 target_os
1822 target_path
1823 target_samples
1824 toolchain
1825 "
1826
1827 CMDLINE_APPEND="
1828 extra_cflags
1829 extra_objcflags
1830 host_cppflags
1831 "
1832
1833 # code dependency declarations
1834
1835 # architecture extensions
1836
1837 armv5te_deps="arm"
1838 armv6_deps="arm"
1839 armv6t2_deps="arm"
1840 armv8_deps="aarch64"
1841 neon_deps_any="aarch64 arm"
1842 intrinsics_neon_deps="neon"
1843 vfp_deps_any="aarch64 arm"
1844 vfpv3_deps="vfp"
1845
1846 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1847
1848 altivec_deps="ppc"
1849 ppc4xx_deps="ppc"
1850 vsx_deps="altivec"
1851 power8_deps="vsx"
1852
1853 cpunop_deps="i686"
1854 x86_64_select="i686"
1855 x86_64_suggest="fast_cmov"
1856
1857 amd3dnow_deps="mmx"
1858 amd3dnowext_deps="amd3dnow"
1859 i686_deps="x86"
1860 mmx_deps="x86"
1861 mmxext_deps="mmx"
1862 sse_deps="mmxext"
1863 sse2_deps="sse"
1864 sse3_deps="sse2"
1865 ssse3_deps="sse3"
1866 sse4_deps="ssse3"
1867 sse42_deps="sse4"
1868 avx_deps="sse42"
1869 xop_deps="avx"
1870 fma3_deps="avx"
1871 fma4_deps="avx"
1872 avx2_deps="avx"
1873
1874 mmx_external_deps="yasm"
1875 mmx_inline_deps="inline_asm"
1876 mmx_suggest="mmx_external mmx_inline"
1877
1878 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1879 eval dep=\$${ext}_deps
1880 eval ${ext}_external_deps='"${dep}_external"'
1881 eval ${ext}_inline_deps='"${dep}_inline"'
1882 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1883 done
1884
1885 aligned_stack_if_any="aarch64 ppc x86"
1886 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1887 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1888 fast_unaligned_if_any="aarch64 ppc x86"
1889 simd_align_16_if_any="altivec neon sse"
1890 simd_align_32_if_any="avx"
1891
1892 # system capabilities
1893 symver_if_any="symver_asm_label symver_gnu_asm"
1894 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1895
1896 # threading support
1897 atomics_gcc_if="sync_val_compare_and_swap"
1898 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1899 atomics_win32_if="MemoryBarrier"
1900 atomics_native_if_any="$ATOMICS_LIST"
1901 w32threads_deps="atomics_native"
1902 threads_if_any="$THREADS_LIST"
1903
1904 # subsystems
1905 dct_select="rdft"
1906 dirac_parse_select="golomb"
1907 error_resilience_select="me_cmp"
1908 faandct_deps="faan fdctdsp"
1909 faanidct_deps="faan idctdsp"
1910 h264dsp_select="startcode"
1911 intrax8_select="blockdsp idctdsp"
1912 mdct_select="fft"
1913 rdft_select="fft"
1914 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1915 mpeg_er_select="error_resilience"
1916 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1917 mpegaudiodsp_select="dct"
1918 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1919 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1920 vc1dsp_select="h264chroma qpeldsp startcode"
1921
1922 # decoders / encoders
1923 aac_decoder_select="imdct15 mdct sinewin"
1924 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1925 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1926 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1927 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1928 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1929 adpcm_g722_decoder_select="g722dsp"
1930 adpcm_g722_encoder_select="g722dsp"
1931 aic_decoder_select="golomb idctdsp"
1932 alac_encoder_select="lpc"
1933 als_decoder_select="bswapdsp"
1934 amrnb_decoder_select="lsp"
1935 amrwb_decoder_select="lsp"
1936 amv_decoder_select="sp5x_decoder"
1937 ape_decoder_select="bswapdsp"
1938 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1939 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1940 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1941 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1942 atrac1_decoder_select="mdct sinewin"
1943 atrac3_decoder_select="mdct"
1944 atrac3p_decoder_select="mdct sinewin"
1945 bink_decoder_select="blockdsp hpeldsp"
1946 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1947 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1948 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1949 cllc_decoder_select="bswapdsp"
1950 comfortnoise_encoder_select="lpc"
1951 cook_decoder_select="audiodsp mdct sinewin"
1952 cscd_decoder_select="lzo"
1953 cscd_decoder_suggest="zlib"
1954 dca_decoder_select="fmtconvert mdct"
1955 dds_decoder_select="texturedsp"
1956 dnxhd_decoder_select="blockdsp idctdsp"
1957 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1958 dvvideo_decoder_select="dvprofile idctdsp"
1959 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1960 dxa_decoder_deps="zlib"
1961 dxv_decoder_select="lzf texturedsp"
1962 eac3_decoder_select="ac3_decoder"
1963 eac3_encoder_select="ac3_encoder"
1964 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1965 eatgq_decoder_select="aandcttables idctdsp"
1966 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1967 exr_decoder_deps="zlib"
1968 ffv1_decoder_select="golomb rangecoder"
1969 ffv1_encoder_select="rangecoder"
1970 ffvhuff_decoder_select="huffyuv_decoder"
1971 ffvhuff_encoder_select="huffyuv_encoder"
1972 fic_decoder_select="golomb"
1973 flac_decoder_select="flacdsp golomb"
1974 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1975 flashsv_decoder_deps="zlib"
1976 flashsv_encoder_deps="zlib"
1977 flashsv2_decoder_deps="zlib"
1978 flv_decoder_select="h263_decoder"
1979 flv_encoder_select="h263_encoder"
1980 fourxm_decoder_select="blockdsp bswapdsp"
1981 fraps_decoder_select="bswapdsp huffman"
1982 g2m_decoder_deps="zlib"
1983 g2m_decoder_select="blockdsp idctdsp jpegtables"
1984 h261_decoder_select="mpeg_er mpegvideo"
1985 h261_encoder_select="aandcttables mpegvideoenc"
1986 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1987 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1988 h263i_decoder_select="h263_decoder"
1989 h263p_encoder_select="h263_encoder"
1990 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1991 h264_decoder_suggest="error_resilience"
1992 hap_decoder_select="snappy texturedsp"
1993 hap_encoder_deps="libsnappy"
1994 hap_encoder_select="texturedspenc"
1995 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1996 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1997 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1998 iac_decoder_select="imc_decoder"
1999 imc_decoder_select="bswapdsp fft mdct sinewin"
2000 indeo3_decoder_select="hpeldsp"
2001 indeo4_decoder_select="ividsp"
2002 indeo5_decoder_select="ividsp"
2003 interplay_video_decoder_select="hpeldsp"
2004 jpegls_decoder_select="golomb mjpeg_decoder"
2005 jpegls_encoder_select="golomb"
2006 jv_decoder_select="blockdsp"
2007 lagarith_decoder_select="huffyuvdsp"
2008 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2009 loco_decoder_select="golomb"
2010 magicyuv_decoder_select="huffyuvdsp"
2011 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2012 metasound_decoder_select="lsp mdct sinewin"
2013 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2014 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2015 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2016 mjpegb_decoder_select="mjpeg_decoder"
2017 mlp_decoder_select="mlp_parser"
2018 motionpixels_decoder_select="bswapdsp"
2019 mp1_decoder_select="mpegaudio"
2020 mp1float_decoder_select="mpegaudio"
2021 mp2_decoder_select="mpegaudio"
2022 mp2float_decoder_select="mpegaudio"
2023 mp3_decoder_select="mpegaudio"
2024 mp3adu_decoder_select="mpegaudio"
2025 mp3adufloat_decoder_select="mpegaudio"
2026 mp3float_decoder_select="mpegaudio"
2027 mp3on4_decoder_select="mpegaudio"
2028 mp3on4float_decoder_select="mpegaudio"
2029 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2030 mpc8_decoder_select="mpegaudiodsp"
2031 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2032 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2033 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2034 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2035 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2036 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2037 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2038 mpeg4_encoder_select="h263_encoder"
2039 msa1_decoder_select="mss34dsp"
2040 msmpeg4v1_decoder_select="h263_decoder"
2041 msmpeg4v2_decoder_select="h263_decoder"
2042 msmpeg4v2_encoder_select="h263_encoder"
2043 msmpeg4v3_decoder_select="h263_decoder"
2044 msmpeg4v3_encoder_select="h263_encoder"
2045 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2046 mts2_decoder_select="mss34dsp"
2047 mxpeg_decoder_select="mjpeg_decoder"
2048 nellymoser_decoder_select="mdct sinewin"
2049 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2050 nuv_decoder_select="idctdsp lzo"
2051 on2avc_decoder_select="mdct"
2052 opus_decoder_deps="avresample"
2053 opus_decoder_select="imdct15"
2054 png_decoder_deps="zlib"
2055 png_encoder_deps="zlib"
2056 png_encoder_select="huffyuvencdsp"
2057 prores_decoder_select="idctdsp"
2058 prores_encoder_select="fdctdsp"
2059 qcelp_decoder_select="lsp"
2060 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2061 ra_144_encoder_select="audio_frame_queue lpc"
2062 ralf_decoder_select="golomb"
2063 rscc_decoder_deps="zlib"
2064 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2065 rv10_encoder_select="h263_encoder"
2066 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2067 rv20_encoder_select="h263_encoder"
2068 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2069 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 screenpresso_decoder_deps="zlib"
2071 shorten_decoder_select="golomb"
2072 sipr_decoder_select="lsp"
2073 sp5x_decoder_select="mjpeg_decoder"
2074 svq1_decoder_select="hpeldsp"
2075 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2076 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2077 svq3_decoder_suggest="zlib"
2078 tak_decoder_select="audiodsp"
2079 tdsc_decoder_deps="zlib"
2080 tdsc_decoder_select="mjpeg_decoder"
2081 theora_decoder_select="vp3_decoder"
2082 thp_decoder_select="mjpeg_decoder"
2083 tiff_decoder_suggest="zlib"
2084 tiff_encoder_suggest="zlib"
2085 truehd_decoder_select="mlp_decoder"
2086 truemotion2_decoder_select="bswapdsp"
2087 truespeech_decoder_select="bswapdsp"
2088 tscc_decoder_deps="zlib"
2089 txd_decoder_select="texturedsp"
2090 twinvq_decoder_select="mdct lsp sinewin"
2091 utvideo_decoder_select="bswapdsp"
2092 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2093 vble_decoder_select="huffyuvdsp"
2094 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2095 vc1image_decoder_select="vc1_decoder"
2096 vorbis_decoder_select="mdct"
2097 vorbis_encoder_select="mdct"
2098 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2099 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2100 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2101 vp6a_decoder_select="vp6_decoder"
2102 vp6f_decoder_select="vp6_decoder"
2103 vp7_decoder_select="h264pred videodsp vp8dsp"
2104 vp8_decoder_select="h264pred videodsp vp8dsp"
2105 vp9_decoder_select="videodsp"
2106 webp_decoder_select="vp8_decoder"
2107 wmapro_decoder_select="mdct sinewin wma_freqs"
2108 wmav1_decoder_select="mdct sinewin wma_freqs"
2109 wmav1_encoder_select="mdct sinewin wma_freqs"
2110 wmav2_decoder_select="mdct sinewin wma_freqs"
2111 wmav2_encoder_select="mdct sinewin wma_freqs"
2112 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2113 wmv1_decoder_select="h263_decoder"
2114 wmv1_encoder_select="h263_encoder"
2115 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2116 wmv2_encoder_select="h263_encoder wmv2dsp"
2117 wmv3_decoder_select="vc1_decoder"
2118 wmv3image_decoder_select="wmv3_decoder"
2119 zerocodec_decoder_deps="zlib"
2120 zlib_decoder_deps="zlib"
2121 zlib_encoder_deps="zlib"
2122 zmbv_decoder_deps="zlib"
2123 zmbv_encoder_deps="zlib"
2124
2125 # hardware accelerators
2126 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2127 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2128 vaapi_deps="va_va_h"
2129 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2130 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2131 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2132
2133 h263_vaapi_hwaccel_deps="vaapi"
2134 h263_vaapi_hwaccel_select="h263_decoder"
2135 h264_d3d11va_hwaccel_deps="d3d11va"
2136 h264_d3d11va_hwaccel_select="h264_decoder"
2137 h264_dxva2_hwaccel_deps="dxva2"
2138 h264_dxva2_hwaccel_select="h264_decoder"
2139 h264_mmal_hwaccel_deps="mmal"
2140 h264_qsv_hwaccel_deps="libmfx"
2141 h264_vaapi_hwaccel_deps="vaapi"
2142 h264_vaapi_hwaccel_select="h264_decoder"
2143 h264_vda_hwaccel_deps="vda"
2144 h264_vda_hwaccel_select="h264_decoder"
2145 h264_vda_old_hwaccel_deps="vda"
2146 h264_vda_old_hwaccel_select="h264_decoder"
2147 h264_vdpau_hwaccel_deps="vdpau"
2148 h264_vdpau_hwaccel_select="h264_decoder"
2149 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2150 hevc_d3d11va_hwaccel_select="hevc_decoder"
2151 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2152 hevc_dxva2_hwaccel_select="hevc_decoder"
2153 hevc_qsv_hwaccel_deps="libmfx"
2154 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2155 hevc_vdpau_hwaccel_select="hevc_decoder"
2156 mpeg1_vdpau_hwaccel_deps="vdpau"
2157 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2158 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2159 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_dxva2_hwaccel_deps="dxva2"
2161 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2162 mpeg2_mmal_hwaccel_deps="mmal"
2163 mpeg2_qsv_hwaccel_deps="libmfx"
2164 mpeg2_vaapi_hwaccel_deps="vaapi"
2165 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_vdpau_hwaccel_deps="vdpau"
2167 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2168 mpeg4_vaapi_hwaccel_deps="vaapi"
2169 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2170 mpeg4_vdpau_hwaccel_deps="vdpau"
2171 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2172 vc1_d3d11va_hwaccel_deps="d3d11va"
2173 vc1_d3d11va_hwaccel_select="vc1_decoder"
2174 vc1_dxva2_hwaccel_deps="dxva2"
2175 vc1_dxva2_hwaccel_select="vc1_decoder"
2176 vc1_mmal_hwaccel_deps="mmal"
2177 vc1_qsv_hwaccel_deps="libmfx"
2178 vc1_vaapi_hwaccel_deps="vaapi"
2179 vc1_vaapi_hwaccel_select="vc1_decoder"
2180 vc1_vdpau_hwaccel_deps="vdpau"
2181 vc1_vdpau_hwaccel_select="vc1_decoder"
2182 vp8_qsv_hwaccel_deps="libmfx"
2183 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2184 vp8_vaapi_hwaccel_select="vp8_decoder"
2185 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2186 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2187 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2188 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2189
2190 # hardware-accelerated codecs
2191 nvenc_deps_any="dlopen LoadLibrary"
2192 nvenc_extralibs='$ldl'
2193 omx_deps="dlopen pthreads"
2194 omx_extralibs='$ldl'
2195 omx_rpi_select="omx"
2196 qsvdec_select="qsv"
2197 qsvenc_select="qsv"
2198 vaapi_encode_deps="vaapi"
2199
2200 hwupload_cuda_filter_deps="cuda"
2201 scale_npp_filter_deps="cuda libnpp"
2202
2203 h264_mmal_decoder_deps="mmal"
2204 h264_nvenc_encoder_deps="nvenc"
2205 h264_omx_encoder_deps="omx"
2206 h264_qsv_decoder_deps="libmfx"
2207 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2208 h264_qsv_encoder_deps="libmfx"
2209 h264_qsv_encoder_select="qsvenc"
2210 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2211 h264_vaapi_encoder_select="vaapi_encode golomb"
2212 hevc_nvenc_encoder_deps="nvenc"
2213 hevc_qsv_decoder_deps="libmfx"
2214 hevc_qsv_encoder_deps="libmfx"
2215 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2216 hevc_qsv_encoder_select="qsvenc"
2217 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2218 hevc_vaapi_encoder_select="vaapi_encode golomb"
2219 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2220 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2221 mpeg2_mmal_decoder_deps="mmal"
2222 mpeg2_qsv_decoder_deps="libmfx"
2223 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2224 mpeg2_qsv_encoder_deps="libmfx"
2225 mpeg2_qsv_encoder_select="qsvenc"
2226 mpeg4_omx_encoder_deps="omx"
2227 vc1_mmal_decoder_deps="mmal"
2228 vc1_qsv_decoder_deps="libmfx"
2229 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2230 vp8_qsv_decoder_deps="libmfx"
2231 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2232
2233 nvenc_h264_encoder_deps="nvenc"
2234 nvenc_hevc_encoder_deps="nvenc"
2235
2236 # parsers
2237 h264_parser_select="golomb h264dsp h264parse"
2238 hevc_parser_select="golomb"
2239 mpegaudio_parser_select="mpegaudioheader"
2240 mpegvideo_parser_select="mpegvideo"
2241 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2242 vc1_parser_select="vc1dsp"
2243
2244 # bitstream_filters
2245 mjpeg2jpeg_bsf_select="jpegtables"
2246
2247 # external libraries
2248 avisynth_deps="LoadLibrary"
2249 avxsynth_deps="dlopen"
2250 avisynth_demuxer_deps_any="avisynth avxsynth"
2251 avisynth_demuxer_select="riffdec"
2252 libdcadec_decoder_deps="libdcadec"
2253 libfaac_encoder_deps="libfaac"
2254 libfaac_encoder_select="audio_frame_queue"
2255 libfdk_aac_decoder_deps="libfdk_aac"
2256 libfdk_aac_encoder_deps="libfdk_aac"
2257 libfdk_aac_encoder_select="audio_frame_queue"
2258 libgsm_decoder_deps="libgsm"
2259 libgsm_encoder_deps="libgsm"
2260 libgsm_ms_decoder_deps="libgsm"
2261 libgsm_ms_encoder_deps="libgsm"
2262 libilbc_decoder_deps="libilbc"
2263 libilbc_encoder_deps="libilbc"
2264 libkvazaar_encoder_deps="libkvazaar"
2265 libmp3lame_encoder_deps="libmp3lame"
2266 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2267 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2268 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2269 libopencore_amrnb_encoder_select="audio_frame_queue"
2270 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2271 libopenh264_decoder_deps="libopenh264"
2272 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2273 libopenh264_encoder_deps="libopenh264"
2274 libopenjpeg_decoder_deps="libopenjpeg"
2275 libopenjpeg_encoder_deps="libopenjpeg"
2276 libopus_decoder_deps="libopus"
2277 libopus_encoder_deps="libopus"
2278 libopus_encoder_select="audio_frame_queue"
2279 libschroedinger_decoder_deps="libschroedinger"
2280 libschroedinger_encoder_deps="libschroedinger"
2281 libspeex_decoder_deps="libspeex"
2282 libspeex_encoder_deps="libspeex"
2283 libspeex_encoder_select="audio_frame_queue"
2284 libtheora_encoder_deps="libtheora"
2285 libtwolame_encoder_deps="libtwolame"
2286 libvo_aacenc_encoder_deps="libvo_aacenc"
2287 libvo_aacenc_encoder_select="audio_frame_queue"
2288 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2289 libvorbis_encoder_deps="libvorbis"
2290 libvorbis_encoder_select="audio_frame_queue"
2291 libvpx_vp8_decoder_deps="libvpx"
2292 libvpx_vp8_encoder_deps="libvpx"
2293 libvpx_vp9_decoder_deps="libvpx"
2294 libvpx_vp9_encoder_deps="libvpx"
2295 libwavpack_encoder_deps="libwavpack"
2296 libwavpack_encoder_select="audio_frame_queue"
2297 libwebp_encoder_deps="libwebp"
2298 libx262_encoder_deps="libx262"
2299 libx264_encoder_deps="libx264"
2300 libx265_encoder_deps="libx265"
2301 libxavs_encoder_deps="libxavs"
2302 libxvid_encoder_deps="libxvid mkstemp"
2303
2304 # demuxers / muxers
2305 ac3_demuxer_select="ac3_parser"
2306 asf_demuxer_select="riffdec"
2307 asf_muxer_select="riffenc"
2308 asf_stream_muxer_select="asf_muxer"
2309 avi_demuxer_select="iso_media riffdec"
2310 avi_muxer_select="riffenc"
2311 caf_demuxer_select="iso_media riffdec"
2312 dash_muxer_select="mp4_muxer"
2313 dirac_demuxer_select="dirac_parser"
2314 dv_demuxer_select="dvprofile"
2315 dv_muxer_select="dvprofile"
2316 dxa_demuxer_select="riffdec"
2317 eac3_demuxer_select="ac3_parser"
2318 f4v_muxer_select="mov_muxer"
2319 flac_demuxer_select="flac_parser"
2320 hds_muxer_select="flv_muxer"
2321 hls_muxer_select="mpegts_muxer"
2322 ipod_muxer_select="mov_muxer"
2323 ismv_muxer_select="mov_muxer"
2324 matroska_audio_muxer_select="matroska_muxer"
2325 matroska_demuxer_select="iso_media riffdec"
2326 matroska_demuxer_suggest="bzlib lzo zlib"
2327 matroska_muxer_select="iso_media riffenc"
2328 mmf_muxer_select="riffenc"
2329 mov_demuxer_select="iso_media riffdec"
2330 mov_demuxer_suggest="zlib"
2331 mov_muxer_select="iso_media riffenc rtpenc_chain"
2332 mp3_demuxer_select="mpegaudio_parser"
2333 mp3_muxer_select="mpegaudioheader"
2334 mp4_muxer_select="mov_muxer"
2335 mpegts_demuxer_select="iso_media"
2336 mpegts_muxer_select="adts_muxer latm_muxer"
2337 mpegtsraw_demuxer_select="mpegts_demuxer"
2338 mxf_d10_muxer_select="mxf_muxer"
2339 nut_muxer_select="riffenc"
2340 nuv_demuxer_select="riffdec"
2341 oga_muxer_select="ogg_muxer"
2342 ogg_demuxer_select="dirac_parse"
2343 opus_muxer_select="ogg_muxer"
2344 psp_muxer_select="mov_muxer"
2345 rtp_demuxer_select="sdp_demuxer"
2346 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2347 rtsp_demuxer_select="http_protocol rtpdec"
2348 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2349 sap_demuxer_select="sdp_demuxer"
2350 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2351 sdp_demuxer_select="rtpdec"
2352 smoothstreaming_muxer_select="ismv_muxer"
2353 spdif_muxer_select="aac_parser"
2354 spx_muxer_select="ogg_muxer"
2355 swf_demuxer_suggest="zlib"
2356 tak_demuxer_select="tak_parser"
2357 tg2_muxer_select="mov_muxer"
2358 tgp_muxer_select="mov_muxer"
2359 w64_demuxer_select="wav_demuxer"
2360 wav_demuxer_select="riffdec"
2361 wav_muxer_select="riffenc"
2362 webm_muxer_select="iso_media riffenc"
2363 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2364 wtv_demuxer_select="mpegts_demuxer riffdec"
2365 xmv_demuxer_select="riffdec"
2366 xwma_demuxer_select="riffdec"
2367
2368 # indevs / outdevs
2369 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2370 alsa_outdev_deps="alsa_asoundlib_h"
2371 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2372 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2373 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2374 dv1394_indev_deps="dv1394"
2375 dv1394_indev_select="dv_demuxer"
2376 fbdev_indev_deps="linux_fb_h"
2377 jack_indev_deps="jack_jack_h"
2378 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2379 libcdio_indev_deps="libcdio"
2380 libdc1394_indev_deps="libdc1394"
2381 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2382 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2383 pulse_indev_deps="libpulse"
2384 sndio_indev_deps="sndio_h"
2385 sndio_outdev_deps="sndio_h"
2386 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2387 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2388 vfwcap_indev_extralibs="-lavicap32"
2389 xcbgrab_indev_deps="libxcb"
2390
2391 # protocols
2392 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2393 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2394 ffrtmpcrypt_protocol_select="tcp_protocol"
2395 ffrtmphttp_protocol_deps="!librtmp_protocol"
2396 ffrtmphttp_protocol_select="http_protocol"
2397 gopher_protocol_select="network"
2398 http_protocol_select="tcp_protocol"
2399 httpproxy_protocol_select="tcp_protocol"
2400 https_protocol_select="tls_protocol"
2401 icecast_protocol_select="http_protocol"
2402 librtmp_protocol_deps="librtmp"
2403 librtmpe_protocol_deps="librtmp"
2404 librtmps_protocol_deps="librtmp"
2405 librtmpt_protocol_deps="librtmp"
2406 librtmpte_protocol_deps="librtmp"
2407 mmsh_protocol_select="http_protocol"
2408 mmst_protocol_select="network"
2409 rtmp_protocol_deps="!librtmp_protocol"
2410 rtmp_protocol_select="tcp_protocol"
2411 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2412 rtmps_protocol_deps="!librtmp_protocol"
2413 rtmps_protocol_select="tls_protocol"
2414 rtmpt_protocol_select="ffrtmphttp_protocol"
2415 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2416 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2417 rtp_protocol_select="udp_protocol"
2418 sctp_protocol_deps="struct_sctp_event_subscribe"
2419 sctp_protocol_select="network"
2420 srtp_protocol_select="rtp_protocol srtp"
2421 tcp_protocol_select="network"
2422 tls_gnutls_protocol_deps="gnutls"
2423 tls_gnutls_protocol_select="tcp_protocol"
2424 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2425 tls_openssl_protocol_select="tcp_protocol"
2426 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2427 udp_protocol_select="network"
2428 unix_protocol_deps="sys_un_h"
2429 unix_protocol_select="network"
2430
2431 # filters
2432 asyncts_filter_deps="avresample"
2433 blackframe_filter_deps="gpl"
2434 boxblur_filter_deps="gpl"
2435 bs2b_filter_deps="libbs2b"
2436 cropdetect_filter_deps="gpl"
2437 deinterlace_qsv_filter_deps="libmfx"
2438 delogo_filter_deps="gpl"
2439 drawtext_filter_deps="libfreetype"
2440 frei0r_filter_deps="frei0r dlopen"
2441 frei0r_filter_extralibs='$ldl'
2442 frei0r_src_filter_deps="frei0r dlopen"
2443 frei0r_src_filter_extralibs='$ldl'
2444 hdcd_filter_deps="libhdcd"
2445 hqdn3d_filter_deps="gpl"
2446 interlace_filter_deps="gpl"
2447 movie_filter_deps="avcodec avformat"
2448 ocv_filter_deps="libopencv"
2449 resample_filter_deps="avresample"
2450 scale_filter_deps="swscale"
2451 scale_qsv_filter_deps="libmfx"
2452 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2453
2454 # examples
2455 decode_audio_example_deps="avcodec avutil"
2456 decode_video_example_deps="avcodec avutil"
2457 encode_audio_example_deps="avcodec avutil"
2458 encode_video_example_deps="avcodec avutil"
2459 filter_audio_example_deps="avfilter avutil"
2460 metadata_example_deps="avformat avutil"
2461 output_example_deps="avcodec avformat avresample avutil swscale"
2462 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2463 transcode_aac_example_deps="avcodec avformat avresample"
2464
2465 # libraries, in linking order
2466 avcodec_deps="avutil"
2467 avdevice_deps="avformat avcodec avutil"
2468 avfilter_deps="avutil"
2469 avformat_deps="avcodec avutil"
2470 avresample_deps="avutil"
2471 swscale_deps="avutil"
2472
2473 # programs
2474 avconv_deps="avcodec avfilter avformat avresample swscale"
2475 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2476 fps_filter null_filter resample_filter scale_filter
2477 trim_filter"
2478 avplay_deps="avcodec avfilter avformat avresample sdl"
2479 avplay_libs='$sdl_libs'
2480 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2481 avprobe_deps="avcodec avformat"
2482
2483 # documentation
2484 pod2man_deps="doc"
2485 texi2html_deps="doc"
2486
2487 # default parameters
2488
2489 logfile="config.log"
2490
2491 # installation paths
2492 prefix_default="/usr/local"
2493 bindir_default='${prefix}/bin'
2494 datadir_default='${prefix}/share/avconv'
2495 docdir_default='${prefix}/share/doc/libav'
2496 incdir_default='${prefix}/include'
2497 libdir_default='${prefix}/lib'
2498 mandir_default='${prefix}/share/man'
2499 shlibdir_default="$libdir_default"
2500
2501 # toolchain
2502 ar_default="ar"
2503 cc_default="gcc"
2504 host_cc_default="gcc"
2505 ln_s="ln -s -f"
2506 nm_default="nm -g"
2507 objformat="elf"
2508 pkg_config_default=pkg-config
2509 ranlib="ranlib"
2510 strip="strip"
2511 version_script='--version-script'
2512 yasmexe="yasm"
2513
2514 # machine
2515 arch_default=$(uname -m)
2516 cpu="generic"
2517 intrinsics="none"
2518
2519 # OS
2520 target_os_default=$(tolower $(uname -s))
2521 host_os=$target_os_default
2522
2523 # configurable options
2524 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2525
2526 enable asm
2527 enable debug
2528 enable doc
2529 enable faan faandct faanidct
2530 enable optimizations
2531 enable safe_bitstream_reader
2532 enable static
2533 enable swscale_alpha
2534 enable valgrind_backtrace
2535
2536 # By default, enable only those hwaccels that have no external dependencies.
2537 enable d3d11va dxva2 vda vdpau
2538
2539 # build settings
2540 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2541 LIBPREF="lib"
2542 LIBSUF=".a"
2543 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2544 SLIBPREF="lib"
2545 SLIBSUF=".so"
2546 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2547 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2548 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2549 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2550 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2551 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2552 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2553
2554 asflags_filter=echo
2555 cflags_filter=echo
2556 ldflags_filter=echo
2557
2558 AS_C='-c'
2559 AS_O='-o $@'
2560 CC_C='-c'
2561 CC_E='-E -o $@'
2562 CC_O='-o $@'
2563 OBJCC_C='-c'
2564 OBJCC_E='-E -o $@'
2565 OBJCC_O='-o $@'
2566 LD_O='-o $@'
2567 LD_LIB='-l%'
2568 LD_PATH='-L'
2569 HOSTCC_C='-c'
2570 HOSTCC_E='-E -o $@'
2571 HOSTCC_O='-o $@'
2572 HOSTLD_O='-o $@'
2573
2574 host_libs='-lm'
2575 host_cflags_filter=echo
2576 host_ldflags_filter=echo
2577
2578 target_path='$(CURDIR)'
2579
2580 # since the object filename is not given with the -MM flag, the compiler
2581 # is only able to print the basename, and we must add the path ourselves
2582 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2583 DEPFLAGS='-MM'
2584
2585 # find source path
2586 if test -f configure; then
2587 source_path=.
2588 else
2589 source_path=$(cd $(dirname "$0"); pwd)
2590 echo "$source_path" | grep -q '[[:blank:]]' &&
2591 die "Out of tree builds are impossible with whitespace in source path."
2592 test -e "$source_path/config.h" &&
2593 die "Out of tree builds are impossible with config.h in source dir."
2594 fi
2595
2596 for v in "$@"; do
2597 r=${v#*=}
2598 l=${v%"$r"}
2599 r=$(sh_quote "$r")
2600 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2601 done
2602
2603 find_things(){
2604 thing=$1
2605 pattern=$2
2606 file=$source_path/$3
2607 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2608 }
2609
2610 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2611 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2612 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2613 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2614 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2615 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2616 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2617 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2618 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2619
2620 find_things_extern(){
2621 thing=$1
2622 pattern=$2
2623 file=$source_path/$3
2624 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2625 }
2626
2627 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2628 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2629
2630 ALL_COMPONENTS="
2631 $BSF_LIST
2632 $DECODER_LIST
2633 $DEMUXER_LIST
2634 $ENCODER_LIST
2635 $FILTER_LIST
2636 $HWACCEL_LIST
2637 $INDEV_LIST
2638 $MUXER_LIST
2639 $OUTDEV_LIST
2640 $PARSER_LIST
2641 $PROTOCOL_LIST
2642 "
2643
2644 for n in $COMPONENT_LIST; do
2645 v=$(toupper ${n%s})_LIST
2646 eval enable \$$v
2647 eval ${n}_if_any="\$$v"
2648 done
2649
2650 enable $ARCH_EXT_LIST
2651
2652 die_unknown(){
2653 echo "Unknown option \"$1\"."
2654 echo "See $0 --help for available options."
2655 exit 1
2656 }
2657
2658 print_3_columns() {
2659 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2660 }
2661
2662 show_list() {
2663 suffix=_$1
2664 shift
2665 echo $* | sed s/$suffix//g | print_3_columns
2666 exit 0
2667 }
2668
2669 rand_list(){
2670 IFS=', '
2671 set -- $*
2672 unset IFS
2673 for thing; do
2674 comp=${thing%:*}
2675 prob=${thing#$comp}
2676 prob=${prob#:}
2677 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2678 echo "prob ${prob:-0.5}"
2679 printf '%s\n' $comp
2680 done
2681 }
2682
2683 do_random(){
2684 action=$1
2685 shift
2686 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2687 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2688 }
2689
2690 for opt do
2691 optval="${opt#*=}"
2692 case "$opt" in
2693 --extra-ldflags=*)
2694 add_ldflags $optval
2695 ;;
2696 --extra-ldexeflags=*)
2697 add_ldexeflags $optval
2698 ;;
2699 --extra-libs=*)
2700 add_extralibs $optval
2701 ;;
2702 --disable-devices)
2703 disable $INDEV_LIST $OUTDEV_LIST
2704 ;;
2705 --enable-debug=*)
2706 debuglevel="$optval"
2707 ;;
2708 --disable-programs)
2709 disable $PROGRAM_LIST
2710 ;;
2711 --disable-everything)
2712 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2713 ;;
2714 --disable-all)
2715 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2716 disable $LIBRARY_LIST $PROGRAM_LIST doc
2717 ;;
2718 --enable-random|--disable-random)
2719 action=${opt%%-random}
2720 do_random ${action#--} $COMPONENT_LIST
2721 ;;
2722 --enable-random=*|--disable-random=*)
2723 action=${opt%%-random=*}
2724 do_random ${action#--} $optval
2725 ;;
2726 --enable-*=*|--disable-*=*)
2727 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2728 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2729 eval list=\$$(toupper $thing)_LIST
2730 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2731 $action $(filter "$name" $list)
2732 ;;
2733 --enable-avserver|--disable-avserver*)
2734 warn "avserver has been removed, the ${opt} option is only"\
2735 "provided for compatibility and will be removed in the future"
2736 ;;
2737 --enable-?*|--disable-?*)
2738 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2739 if is_in $option $COMPONENT_LIST; then
2740 test $action = disable && action=unset
2741 eval $action \$$(toupper ${option%s})_LIST
2742 elif is_in $option $CMDLINE_SELECT; then
2743 $action $option
2744 else
2745 die_unknown $opt
2746 fi
2747 ;;
2748 --list-*)
2749 NAME="${opt#--list-}"
2750 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2751 NAME=${NAME%s}
2752 eval show_list $NAME \$$(toupper $NAME)_LIST
2753 ;;
2754 --help|-h) show_help
2755 ;;
2756 --quiet|-q) quiet=yes
2757 ;;
2758 *)
2759 optname="${opt%%=*}"
2760 optname="${optname#--}"
2761 optname=$(echo "$optname" | sed 's/-/_/g')
2762 if is_in $optname $CMDLINE_SET; then
2763 eval $optname='$optval'
2764 elif is_in $optname $CMDLINE_APPEND; then
2765 append $optname "$optval"
2766 else
2767 die_unknown $opt
2768 fi
2769 ;;
2770 esac
2771 done
2772
2773 for e in $env; do
2774 eval "export $e"
2775 done
2776
2777 disabled logging && logfile=/dev/null
2778
2779 # Die early if licensing-related configure options are incompatible.
2780 die_license_disabled() {
2781 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2782 }
2783
2784 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2785 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2786 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2787
2788 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2789
2790 # Disable all the library-specific components if the library itself
2791 # is disabled, see AVCODEC_LIST and following _LIST variables.
2792
2793 disable_components(){
2794 disabled ${1} && disable $(
2795 eval components="\$$(toupper ${1})_COMPONENTS"
2796 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2797 )
2798 }
2799
2800 map 'disable_components $v' $LIBRARY_LIST
2801
2802 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2803 set >> $logfile
2804
2805 case "$toolchain" in
2806 *-asan)
2807 cc_default="${toolchain%-asan}"
2808 add_cflags -fsanitize=address
2809 add_ldflags -fsanitize=address
2810 ;;
2811 *-msan)
2812 cc_default="${toolchain%-msan}"
2813 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2814 add_ldflags -fsanitize=memory
2815 ;;
2816 *-tsan)
2817 cc_default="${toolchain%-tsan}"
2818 add_cflags -fsanitize=thread -pie
2819 add_ldflags -fsanitize=thread -pie
2820 case "$toolchain" in
2821 gcc-tsan)
2822 add_cflags -fPIC
2823 add_ldflags -fPIC
2824 ;;
2825 esac
2826 ;;
2827 *-usan)
2828 cc_default="${toolchain%-usan}"
2829 add_cflags -fsanitize=undefined
2830 add_ldflags -fsanitize=undefined
2831 case "$toolchain" in
2832 clang-usan)
2833 add_cflags -O1
2834 ;;
2835 esac
2836 ;;
2837 valgrind-*)
2838 target_exec_default="valgrind"
2839 case "$toolchain" in
2840 valgrind-massif)
2841 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2842 ;;
2843 valgrind-memcheck)
2844 target_exec_args="--track-origins=yes --leak-check=full"
2845 ;;
2846 esac
2847 ;;
2848 msvc)
2849 # Check whether the current MSVC version needs the C99 converter.
2850 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2851 # support enough of C99 to build libav. Default to the new
2852 # behaviour if the regexp was unable to match anything, since this
2853 # successfully parses the version number of existing supported
2854 # versions that require the converter (MSVC 2010 and 2012).
2855 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2856 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2857 cc_default="cl"
2858 else
2859 cc_default="c99wrap cl"
2860 fi
2861 ld_default="$source_path/compat/windows/mslink"
2862 nm_default="dumpbin -symbols"
2863 ar_default="lib"
2864 case "$arch" in
2865 arm*)
2866 as_default="armasm"
2867 ;;
2868 esac
2869 target_os_default="win32"
2870 # Use a relative path for TMPDIR. This makes sure all the
2871 # ffconf temp files are written with a relative path, avoiding
2872 # issues with msys/win32 path conversion for MSVC parameters
2873 # such as -Fo<file> or -out:<file>.
2874 TMPDIR=.
2875 ;;
2876 icl)
2877 cc_default="icl"
2878 ld_default="xilink"
2879 nm_default="dumpbin -symbols"
2880 ar_default="xilib"
2881 target_os_default="win32"
2882 TMPDIR=.
2883 ;;
2884 gcov)
2885 add_cflags -fprofile-arcs -ftest-coverage
2886 add_ldflags -fprofile-arcs -ftest-coverage
2887 ;;
2888 llvm-cov)
2889 add_cflags -fprofile-arcs -ftest-coverage
2890 add_ldflags --coverage
2891 ;;
2892 hardened)
2893 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2894 add_cflags -fno-strict-overflow -fstack-protector-all
2895 add_ldflags -Wl,-z,relro -Wl,-z,now
2896 ;;
2897 ?*)
2898 die "Unknown toolchain $toolchain"
2899 ;;
2900 esac
2901
2902 test -n "$cross_prefix" && enable cross_compile
2903
2904 if enabled cross_compile; then
2905 test -n "$arch" && test -n "$target_os" ||
2906 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2907 fi
2908
2909 ar_default="${cross_prefix}${ar_default}"
2910 cc_default="${cross_prefix}${cc_default}"
2911 occ_default="${cross_prefix}${occ_default}"
2912 nm_default="${cross_prefix}${nm_default}"
2913 pkg_config_default="${cross_prefix}${pkg_config_default}"
2914 ranlib="${cross_prefix}${ranlib}"
2915 strip="${cross_prefix}${strip}"
2916
2917 sysinclude_default="${sysroot}/usr/include"
2918
2919 set_default arch cc pkg_config sysinclude target_exec target_os
2920 enabled cross_compile || host_cc_default=$cc
2921 set_default host_cc
2922
2923 if ! $pkg_config --version >/dev/null 2>&1; then
2924 warn "$pkg_config not found, library detection may fail."
2925 pkg_config=false
2926 fi
2927
2928 exesuf() {
2929 case $1 in
2930 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2931 esac
2932 }
2933
2934 EXESUF=$(exesuf $target_os)
2935 HOSTEXESUF=$(exesuf $host_os)
2936
2937 # set temporary file name
2938 : ${TMPDIR:=$TEMPDIR}
2939 : ${TMPDIR:=$TMP}
2940 : ${TMPDIR:=/tmp}
2941
2942 if ! check_cmd mktemp -u XXXXXX; then
2943 # simple replacement for missing mktemp
2944 # NOT SAFE FOR GENERAL USE
2945 mktemp(){
2946 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2947 }
2948 fi
2949
2950 tmpfile(){
2951 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2952 (set -C; exec > $tmp) 2>/dev/null ||
2953 die "Unable to create temporary file in $TMPDIR."
2954 append TMPFILES $tmp
2955 eval $1=$tmp
2956 }
2957
2958 trap 'rm -f -- $TMPFILES' EXIT
2959
2960 tmpfile TMPASM .asm
2961 tmpfile TMPC .c
2962 tmpfile TMPE $EXESUF
2963 tmpfile TMPH .h
2964 tmpfile TMPO .o
2965 tmpfile TMPS .S
2966 tmpfile TMPSH .sh
2967 tmpfile TMPV .ver
2968
2969 unset -f mktemp
2970
2971 chmod +x $TMPE
2972
2973 # make sure we can execute files in $TMPDIR
2974 cat > $TMPSH 2>> $logfile <<EOF
2975 #! /bin/sh
2976 EOF
2977 chmod +x $TMPSH >> $logfile 2>&1
2978 if ! $TMPSH >> $logfile 2>&1; then
2979 cat <<EOF
2980 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2981 variable to another directory and make sure that it is not mounted noexec.
2982 EOF
2983 die "Sanity test failed."
2984 fi
2985
2986 armasm_flags(){
2987 for flag; do
2988 case $flag in
2989 # Filter out MSVC cl.exe options from cflags that shouldn't
2990 # be passed to gas-preprocessor
2991 -M[TD]*) ;;
2992 *) echo $flag ;;
2993 esac
2994 done
2995 }
2996
2997 ccc_flags(){
2998 for flag; do
2999 case $flag in
3000 -std=c99) echo -c99 ;;
3001 -mcpu=*) echo -arch ${flag#*=} ;;
3002 -mieee) echo -ieee ;;
3003 -O*|-fast) echo $flag ;;
3004 -fno-math-errno) echo -assume nomath_errno ;;
3005 -g) echo -g3 ;;
3006 -Wall) echo -msg_enable level2 ;;
3007 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3008 -Wl,*) echo $flag ;;
3009 -f*|-W*) ;;
3010 *) echo $flag ;;
3011 esac
3012 done
3013 }
3014
3015 cparser_flags(){
3016 for flag; do
3017 case $flag in
3018 -Wno-switch) echo -Wno-switch-enum ;;
3019 -Wno-format-zero-length) ;;
3020 -Wdisabled-optimization) ;;
3021 -Wno-pointer-sign) echo -Wno-other ;;
3022 *) echo $flag ;;
3023 esac
3024 done
3025 }
3026
3027 msvc_common_flags(){
3028 for flag; do
3029 case $flag in
3030 # In addition to specifying certain flags under the compiler
3031 # specific filters, they must be specified here as well or else the
3032 # generic catch all at the bottom will print the original flag.
3033 -Wall) ;;
3034 -std=c99) ;;
3035 # Common flags
3036 -fomit-frame-pointer) ;;
3037 -g) echo -Z7 ;;
3038 -fno-math-errno) ;;
3039 -fno-common) ;;
3040 -fno-signed-zeros) ;;
3041 -fPIC) ;;
3042 -mthumb) ;;
3043 -march=*) ;;
3044 -lz) echo zlib.lib ;;
3045 -lavicap32) echo vfw32.lib user32.lib ;;
3046 -lx264) echo libx264.lib ;;
3047 -l*) echo ${flag#-l}.lib ;;
3048 -L*) echo -libpath:${flag#-L} ;;
3049 *) echo $flag ;;
3050 esac
3051 done
3052 }
3053
3054 msvc_flags(){
3055 msvc_common_flags "$@"
3056 for flag; do
3057 case $flag in
3058 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3059 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3060 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3061 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3062 esac
3063 done
3064 }
3065
3066 icl_flags(){
3067 msvc_common_flags "$@"
3068 for flag; do
3069 case $flag in
3070 # Despite what Intel's documentation says -Wall, which is supported
3071 # on Windows, does enable remarks so disable them here.
3072 -Wall) echo $flag -Qdiag-disable:remark ;;
3073 -std=c99) echo -Qstd=c99 ;;
3074 esac
3075 done
3076 }
3077
3078 pgi_flags(){
3079 for flag; do
3080 case $flag in
3081 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3082 -fomit-frame-pointer) echo -Mnoframe ;;
3083 -g) echo -gopt ;;
3084 *) echo $flag ;;
3085 esac
3086 done
3087 }
3088
3089 suncc_flags(){
3090 for flag; do
3091 case $flag in
3092 -march=*|-mcpu=*)
3093 case "${flag#*=}" in
3094 native) echo -xtarget=native ;;
3095 v9|niagara) echo -xarch=sparc ;;
3096 ultrasparc) echo -xarch=sparcvis ;;
3097 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3098 i586|pentium) echo -xchip=pentium ;;
3099 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3100 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3101 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3102 pentium4*) echo -xtarget=pentium4 ;;
3103 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3104 *-sse3) echo -xarch=sse3 ;;
3105 core2) echo -xarch=ssse3 -xchip=core2 ;;
3106 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3107 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3108 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3109 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3110 k8|opteron|athlon64|athlon-fx)
3111 echo -xarch=sse2a ;;
3112 athlon*) echo -xarch=pentium_proa ;;
3113 esac
3114 ;;
3115 -std=c99) echo -xc99 ;;
3116 -fomit-frame-pointer) echo -xregs=frameptr ;;
3117 -fPIC) echo -KPIC -xcode=pic32 ;;
3118 -W*,*) echo $flag ;;
3119 -f*-*|-W*|-mimpure-text) ;;
3120 -shared) echo -G ;;
3121 *) echo $flag ;;
3122 esac
3123 done
3124 }
3125
3126 tms470_flags(){
3127 for flag; do
3128 case $flag in
3129 -march=*|-mcpu=*)
3130 case "${flag#*=}" in
3131 armv7-a|cortex-a*) echo -mv=7a8 ;;
3132 armv7-r|cortex-r*) echo -mv=7r4 ;;
3133 armv7-m|cortex-m*) echo -mv=7m3 ;;
3134 armv6*|arm11*) echo -mv=6 ;;
3135 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3136 echo -mv=5e ;;
3137 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3138 esac
3139 ;;
3140 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3141 -mfpu=vfp) echo --float_support=vfpv2 ;;
3142 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3143 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3144 -msoft-float) echo --float_support=vfplib ;;
3145 -O[0-3]|-mf=*) echo $flag ;;
3146 -g) echo -g -mn ;;
3147 -pds=*) echo $flag ;;
3148 -D*|-I*) echo $flag ;;
3149 --gcc|--abi=*) echo $flag ;;
3150 -me) echo $flag ;;
3151 esac
3152 done
3153 }
3154
3155 probe_cc(){
3156 pfx=$1
3157 _cc=$2
3158
3159 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3160 unset _ld_o _ldflags _ld_lib _ld_path
3161 unset _depflags _DEPCMD _DEPFLAGS
3162 _flags_filter=echo
3163
3164 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3165 _type=llvm_gcc
3166 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3167 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3168 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3169 _cflags_speed='-O3'
3170 _cflags_size='-Os'
3171 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3172 _type=gcc
3173 gcc_version=$($_cc --version | head -n1)
3174 gcc_basever=$($_cc -dumpversion)
3175 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3176 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3177 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3178 if ! $_cc -dumpversion | grep -q '^2\.'; then
3179 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3180 fi
3181 _cflags_speed='-O3'
3182 _cflags_size='-Os'
3183 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3184 _type=icc
3185 _ident=$($_cc --version | head -n1)
3186 _depflags='-MMD'
3187 _cflags_speed='-O3'
3188 _cflags_size='-Os'
3189 _cflags_noopt='-O1'
3190 elif $_cc -v 2>&1 | grep -q xlc; then
3191 _type=xlc
3192 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3193 _cflags_speed='-O5'
3194 _cflags_size='-O5 -qcompact'
3195 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3196 _type=ccc
3197 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3198 _DEPFLAGS='-M'
3199 _cflags_speed='-fast'
3200 _cflags_size='-O1'
3201 _flags_filter=ccc_flags
3202 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3203 test -d "$sysroot" || die "No valid sysroot specified."
3204 _type=armcc
3205 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3206 armcc_conf="$PWD/armcc.conf"
3207 $_cc --arm_linux_configure \
3208 --arm_linux_config_file="$armcc_conf" \
3209 --configure_sysroot="$sysroot" \
3210 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3211 die "Error creating armcc configuration file."
3212 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3213 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3214 as_default="${cross_prefix}gcc"
3215 _depflags='-MMD'
3216 _cflags_speed='-O3'
3217 _cflags_size='-Os'
3218 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3219 _type=tms470
3220 _ident=$($_cc -version | head -n1 | tr -s ' ')
3221 _flags='--gcc --abi=eabi -me'
3222 _cc_e='-ppl -fe=$@'
3223 _cc_o='-fe=$@'
3224 _depflags='-ppa -ppd=$(@:.o=.d)'
3225 _cflags_speed='-O3 -mf=5'
3226 _cflags_size='-O3 -mf=2'
3227 _flags_filter=tms470_flags
3228 elif $_cc -v 2>&1 | grep -q clang; then
3229 _type=clang
3230 _ident=$($_cc --version 2>/dev/null | head -n1)
3231 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3232 _cflags_speed='-O3'
3233 _cflags_size='-Os'
3234 elif $_cc -V 2>&1 | grep -q Sun; then
3235 _type=suncc
3236 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3237 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3238 _DEPFLAGS='-xM1 -xc99'
3239 _ldflags='-std=c99'
3240 _cflags_speed='-O5'
3241 _cflags_size='-O5 -xspace'
3242 _flags_filter=suncc_flags
3243 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3244 _type=pathscale
3245 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3246 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3247 _cflags_speed='-O2'
3248 _cflags_size='-Os'
3249 _flags_filter='filter_out -Wdisabled-optimization'
3250 elif $_cc -v 2>&1 | grep -q Open64; then
3251 _type=open64
3252 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3253 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3254 _cflags_speed='-O2'
3255 _cflags_size='-Os'
3256 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3257 elif $_cc -V 2>&1 | grep -q Portland; then
3258 _type=pgi
3259 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3260 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3261 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3262 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3263 _cflags_noopt="-O1"
3264 _flags_filter=pgi_flags
3265 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3266 _type=armasm
3267 _ident=$($_cc | head -n1)
3268 # 4509: "This form of conditional instruction is deprecated"
3269 _flags="-nologo -ignore 4509"
3270 _flags_filter=armasm_flags
3271 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3272 _type=msvc
3273 _ident=$($_cc 2>&1 | head -n1)
3274 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3275 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3276 _cflags_speed="-O2"
3277 _cflags_size="-O1"
3278 if $_cc -nologo- 2>&1 | grep -q Linker; then
3279 _ld_o='-out:$@'
3280 else
3281 _ld_o='-Fe$@'
3282 fi
3283 _cc_o='-Fo$@'
3284 _cc_e='-P -Fi$@'
3285 _flags_filter=msvc_flags
3286 _ld_lib='lib%.a'
3287 _ld_path='-libpath:'
3288 _flags='-nologo'
3289 elif $_cc 2>&1 | grep -q Intel; then
3290 _type=icl
3291 _ident=$($_cc 2>&1 | head -n1)
3292 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3293 # Not only is O3 broken on 13.x+ but it is slower on all previous
3294 # versions (tested) as well.
3295 _cflags_speed="-O2"
3296 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3297 if $_cc 2>&1 | grep -q Linker; then
3298 _ld_o='-out:$@'
3299 else
3300 _ld_o='-Fe$@'
3301 fi
3302 _cc_o='-Fo$@'
3303 _cc_e='-P'
3304 _flags_filter=icl_flags
3305 _ld_lib='lib%.a'
3306 _ld_path='-libpath:'
3307 # -Qdiag-error to make icl error when seeing certain unknown arguments
3308 _flags='-nologo -Qdiag-error:4044,10157'
3309 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3310 # with MSVC which enables it by default.
3311 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3312 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3313 # lld can emulate multiple different linkers; in ms link.exe mode,
3314 # the -? parameter gives the help output which contains an identifyable
3315 # string, while it gives an error in other modes.
3316 _type=lld-link
3317 # The link.exe mode doesn't have a switch for getting the version,
3318 # but we can force it back to gnu mode and get the version from there.
3319 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3320 _ld_o='-out:$@'
3321 _flags_filter=msvc_flags
3322 _ld_lib='lib%.a'
3323 _ld_path='-libpath:'
3324 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3325 _type=cparser
3326 _ident=$($_cc --version | head -n1)
3327 _depflags='-MMD'
3328 _cflags_speed='-O4'
3329 _cflags_size='-O2'
3330 _flags_filter=cparser_flags
3331 fi
3332
3333 eval ${pfx}_type=\$_type
3334 eval ${pfx}_ident=\$_ident
3335 }
3336
3337 set_ccvars(){
3338 eval ${1}_C=\${_cc_c-\${${1}_C}}
3339 eval ${1}_E=\${_cc_e-\${${1}_E}}
3340 eval ${1}_O=\${_cc_o-\${${1}_O}}
3341
3342 if [ -n "$_depflags" ]; then
3343 eval ${1}_DEPFLAGS=\$_depflags
3344 else
3345 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3346 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3347 eval DEP${1}FLAGS=\$_flags
3348 fi
3349 }
3350
3351 probe_cc cc "$cc"
3352 cflags_filter=$_flags_filter
3353 cflags_speed=$_cflags_speed
3354 cflags_size=$_cflags_size
3355 cflags_noopt=$_cflags_noopt
3356 add_cflags $_flags $_cflags
3357 cc_ldflags=$_ldflags
3358 set_ccvars CC
3359
3360 probe_cc hostcc "$host_cc"
3361 host_cflags_filter=$_flags_filter
3362 add_host_cflags $_flags $_cflags
3363 set_ccvars HOSTCC
3364
3365 test -n "$cc_type" && enable $cc_type ||
3366 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3367
3368 : ${as_default:=$cc}
3369 : ${objcc_default:=$cc}
3370 : ${dep_cc_default:=$cc}
3371 : ${ld_default:=$cc}
3372 : ${host_ld_default:=$host_cc}
3373 set_default ar as objcc dep_cc ld host_ld
3374
3375 probe_cc as "$as"
3376 asflags_filter=$_flags_filter
3377 add_asflags $_flags $_cflags
3378 set_ccvars AS
3379
3380 probe_cc objcc "$objcc"
3381 objcflags_filter=$_flags_filter
3382 add_objcflags $_flags $_cflags
3383 set_ccvars OBJC
3384
3385 probe_cc ld "$ld"
3386 ldflags_filter=$_flags_filter
3387 add_ldflags $_flags $_ldflags
3388 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3389 LD_O=${_ld_o-$LD_O}
3390 LD_LIB=${_ld_lib-$LD_LIB}
3391 LD_PATH=${_ld_path-$LD_PATH}
3392
3393 probe_cc hostld "$host_ld"
3394 host_ldflags_filter=$_flags_filter
3395 add_host_ldflags $_flags $_ldflags
3396 HOSTLD_O=${_ld_o-$HOSTLD_O}
3397
3398 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3399 probe_cc depcc "$dep_cc"
3400 CCDEP=${_DEPCMD:-$DEPCMD}
3401 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3402 DEPCCFLAGS=$_flags
3403 fi
3404
3405 if $ar 2>&1 | grep -q Microsoft; then
3406 arflags="-nologo"
3407 ar_o='-out:$@'
3408 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3409 arflags="rq"
3410 ar_o='$@'
3411 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3412 arflags='-Xany -r -c'
3413 ar_o='$@'
3414 else
3415 arflags="rc"
3416 ar_o='$@'
3417 fi
3418
3419 add_cflags $extra_cflags
3420 add_objcflags $extra_objcflags
3421 add_asflags $extra_cflags
3422
3423 if test -n "$sysroot"; then
3424 case "$cc_type" in
3425 gcc|llvm_gcc|clang)
3426 add_cppflags --sysroot="$sysroot"
3427 add_ldflags --sysroot="$sysroot"
3428 ;;
3429 tms470)
3430 add_cppflags -I"$sysinclude"
3431 add_ldflags --sysroot="$sysroot"
3432 ;;
3433 esac
3434 fi
3435
3436 if test "$cpu" = host; then
3437 enabled cross_compile &&
3438 die "--cpu=host makes no sense when cross-compiling."
3439
3440 case "$cc_type" in
3441 gcc|llvm_gcc)
3442 check_native(){
3443 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3444 sed -n "/cc1.*$1=/{
3445 s/.*$1=\\([^ ]*\\).*/\\1/
3446 p
3447 q
3448 }" $TMPE
3449 }
3450 cpu=$(check_native -march || check_native -mcpu)
3451 ;;
3452 esac
3453
3454 test "${cpu:-host}" = host &&
3455 die "--cpu=host not supported with compiler $cc"
3456 fi
3457
3458 # Deal with common $arch aliases
3459 case "$arch" in
3460 aarch64|arm64)
3461 arch="aarch64"
3462 ;;
3463 arm*)
3464 arch="arm"
3465 ;;
3466 mips*|IP*)
3467 case "$arch" in
3468 *el)
3469 add_cppflags -EL
3470 add_ldflags -EL
3471 ;;
3472 *eb)
3473 add_cppflags -EB
3474 add_ldflags -EB
3475 ;;
3476 esac
3477 arch="mips"
3478 ;;
3479 parisc*|hppa*)
3480 arch="parisc"
3481 ;;
3482 "Power Macintosh"|ppc*|powerpc*)
3483 arch="ppc"
3484 ;;
3485 s390|s390x)
3486 arch="s390"
3487 ;;
3488 sh4|sh)
3489 arch="sh4"
3490 ;;
3491 sun4u|sparc*)
3492 arch="sparc"
3493 ;;
3494 tilegx|tile-gx)
3495 arch="tilegx"
3496 ;;
3497 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3498 arch="x86"
3499 ;;
3500 esac
3501
3502 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3503 enable $arch
3504
3505 # Add processor-specific flags
3506 if enabled aarch64; then
3507
3508 case $cpu in
3509 armv*)
3510 cpuflags="-march=$cpu"
3511 ;;
3512 *)
3513 cpuflags="-mcpu=$cpu"
3514 ;;
3515 esac
3516
3517 elif enabled alpha; then
3518
3519 cpuflags="-mcpu=$cpu"
3520
3521 elif enabled arm; then
3522
3523 check_arm_arch() {
3524 check_cpp_condition stddef.h \
3525 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3526 $cpuflags
3527 }
3528
3529 probe_arm_arch() {
3530 if check_arm_arch 4; then echo armv4
3531 elif check_arm_arch 4T; then echo armv4t
3532 elif check_arm_arch 5; then echo armv5
3533 elif check_arm_arch 5E; then echo armv5e
3534 elif check_arm_arch 5T; then echo armv5t
3535 elif check_arm_arch 5TE; then echo armv5te
3536 elif check_arm_arch 5TEJ; then echo armv5te
3537 elif check_arm_arch 6; then echo armv6
3538 elif check_arm_arch 6J; then echo armv6j
3539 elif check_arm_arch 6K; then echo armv6k
3540 elif check_arm_arch 6Z; then echo armv6z
3541 elif check_arm_arch 6ZK; then echo armv6zk
3542 elif check_arm_arch 6T2; then echo armv6t2
3543 elif check_arm_arch 7; then echo armv7
3544 elif check_arm_arch 7A 7_A; then echo armv7-a
3545 elif check_arm_arch 7S; then echo armv7-a
3546 elif check_arm_arch 7R 7_R; then echo armv7-r
3547 elif check_arm_arch 7M 7_M; then echo armv7-m
3548 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3549 elif check_arm_arch 8A 8_A; then echo armv8-a
3550 fi
3551 }
3552
3553 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3554
3555 case $cpu in
3556 armv*)
3557 cpuflags="-march=$cpu"
3558 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3559 ;;
3560 *)
3561 cpuflags="-mcpu=$cpu"
3562 case $cpu in
3563 cortex-a*) subarch=armv7a ;;
3564 cortex-r*) subarch=armv7r ;;
3565 cortex-m*) enable thumb; subarch=armv7m ;;
3566 arm11*) subarch=armv6 ;;
3567 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3568 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3569 *) subarch=$(probe_arm_arch) ;;
3570 esac
3571 ;;
3572 esac
3573
3574 case "$subarch" in
3575 armv5t*) enable fast_clz ;;
3576 armv[6-8]*) enable fast_clz fast_unaligned ;;
3577 esac
3578
3579 elif enabled avr32; then
3580
3581 case $cpu in
3582 ap7[02]0[0-2])
3583 subarch="avr32_ap"
3584 cpuflags="-mpart=$cpu"
3585 ;;
3586 ap)
3587 subarch="avr32_ap"
3588 cpuflags="-march=$cpu"
3589 ;;
3590 uc3[ab]*)
3591 subarch="avr32_uc"
3592 cpuflags="-mcpu=$cpu"
3593 ;;
3594 uc)
3595 subarch="avr32_uc"
3596 cpuflags="-march=$cpu"
3597 ;;
3598 esac
3599
3600 elif enabled bfin; then
3601
3602 cpuflags="-mcpu=$cpu"
3603
3604 elif enabled mips; then
3605
3606 cpuflags="-march=$cpu"
3607
3608 elif enabled ppc; then
3609
3610 disable ldbrx
3611
3612 case $(tolower $cpu) in
3613 601|ppc601|powerpc601)
3614 cpuflags="-mcpu=601"
3615 disable altivec
3616 ;;
3617 603*|ppc603*|powerpc603*)
3618 cpuflags="-mcpu=603"
3619 disable altivec
3620 ;;
3621 604*|ppc604*|powerpc604*)
3622 cpuflags="-mcpu=604"
3623 disable altivec
3624 ;;
3625 g3|75*|ppc75*|powerpc75*)
3626 cpuflags="-mcpu=750"
3627 disable altivec
3628 ;;
3629 g4|745*|ppc745*|powerpc745*)
3630 cpuflags="-mcpu=7450"
3631 disable vsx
3632 ;;
3633 74*|ppc74*|powerpc74*)
3634 cpuflags="-mcpu=7400"
3635 disable vsx
3636 ;;
3637 g5|970|ppc970|powerpc970)
3638 cpuflags="-mcpu=970"
3639 disable vsx
3640 ;;
3641 power[3-6]*)
3642 cpuflags="-mcpu=$cpu"
3643 disable vsx
3644 ;;
3645 power[7-8]*)
3646 cpuflags="-mcpu=$cpu"
3647 enable ldbrx
3648 ;;
3649 cell)
3650 cpuflags="-mcpu=cell"
3651 enable ldbrx
3652 disable vsx
3653 ;;
3654 e500mc)
3655 cpuflags="-mcpu=e500mc"
3656 disable altivec
3657 ;;
3658 e500v2)
3659 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3660 disable altivec
3661 disable dcbzl
3662 ;;
3663 e500)
3664 cpuflags="-mcpu=8540 -mhard-float"
3665 disable altivec
3666 disable dcbzl
3667 ;;
3668 esac
3669
3670 elif enabled sparc; then
3671
3672 case $cpu in
3673 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3674 cpuflags="-mcpu=$cpu"
3675 ;;
3676 ultrasparc*|niagara[234])
3677 cpuflags="-mcpu=$cpu"
3678 ;;
3679 esac
3680
3681 elif enabled x86; then
3682
3683 case $cpu in
3684 i[345]86|pentium)
3685 cpuflags="-march=$cpu"
3686 disable i686
3687 disable mmx
3688 ;;
3689 # targets that do NOT support nopl and conditional mov (cmov)
3690 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3691 cpuflags="-march=$cpu"
3692 disable i686
3693 ;;
3694 # targets that do support nopl and conditional mov (cmov)
3695 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3696 cpuflags="-march=$cpu"
3697 enable i686
3698 enable fast_cmov
3699 ;;
3700 # targets that do support conditional mov but on which it's slow
3701 pentium4|pentium4m|prescott|nocona)
3702 cpuflags="-march=$cpu"
3703 enable i686
3704 disable fast_cmov
3705 ;;
3706 esac
3707
3708 fi
3709
3710 if [ "$cpu" != generic ]; then
3711 add_cflags $cpuflags
3712 add_asflags $cpuflags
3713 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3714 fi
3715
3716 # compiler sanity check
3717 check_exec <<EOF
3718 int main(void){ return 0; }
3719 EOF
3720 if test "$?" != 0; then
3721 echo "$cc is unable to create an executable file."
3722 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3723 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3724 echo "Only do this if you know what cross compiling means."
3725 fi
3726 die "C compiler test failed."
3727 fi
3728
3729 add_cppflags -D_ISOC99_SOURCE
3730
3731 # some compilers silently accept -std=c11, so we also need to check that the
3732 # version macro is defined properly
3733 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3734 add_cflags -std=c11
3735 else
3736 check_cflags -std=c99
3737 fi
3738
3739 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3740 #include <stdlib.h>
3741 EOF
3742 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3743 #include <stdlib.h>
3744 EOF
3745
3746 add_host_cppflags -D_ISOC99_SOURCE
3747 check_host_cflags -std=c99
3748 check_host_cflags -Wall
3749 check_host_cflags -O3
3750
3751 check_64bit(){
3752 arch32=$1
3753 arch64=$2
3754 expr=$3
3755 check_code cc "" "int test[2*($expr) - 1]" &&
3756 subarch=$arch64 || subarch=$arch32
3757 }
3758
3759 case "$arch" in
3760 aarch64|alpha|ia64)
3761 spic=$shared
3762 ;;
3763 mips)
3764 check_64bit mips mips64 '_MIPS_SIM > 1'
3765 spic=$shared
3766 ;;
3767 parisc)
3768 check_64bit parisc parisc64 'sizeof(void *) > 4'
3769 spic=$shared
3770 ;;
3771 ppc)
3772 check_64bit ppc ppc64 'sizeof(void *) > 4'
3773 spic=$shared
3774 ;;
3775 s390)
3776 check_64bit s390 s390x 'sizeof(void *) > 4'
3777 spic=$shared
3778 ;;
3779 sparc)
3780 check_64bit sparc sparc64 'sizeof(void *) > 4'
3781 spic=$shared
3782 ;;
3783 x86)
3784 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3785 if test "$subarch" = "x86_64"; then
3786 spic=$shared
3787 fi
3788 ;;
3789 esac
3790
3791 enable $subarch
3792 enabled spic && enable_weak pic
3793
3794 # OS specific
3795 case $target_os in
3796 aix)
3797 SHFLAGS=-shared
3798 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3799 enabled shared && add_ldflags -Wl,-brtl
3800 ;;
3801 android)
3802 disable symver
3803 enable section_data_rel_ro
3804 SLIB_INSTALL_NAME='$(SLIBNAME)'
3805 SLIB_INSTALL_LINKS=
3806 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3807 ;;
3808 haiku)
3809 prefix_default="/boot/common"
3810 network_extralibs="-lnetwork"
3811 host_libs=
3812 ;;
3813 sunos)
3814 SHFLAGS='-shared -Wl,-h,$$(@F)'
3815 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3816 network_extralibs="-lsocket -lnsl"
3817 # When using suncc to build, the Solaris linker will mark
3818 # an executable with each instruction set encountered by
3819 # the Solaris assembler. As our libraries contain their own
3820 # guards for processor-specific code, instead suppress
3821 # generation of the HWCAPS ELF section on Solaris x86 only.
3822 enabled_all suncc x86 &&
3823 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3824 add_ldflags -Wl,-M,mapfile
3825 nm_default='nm -P -g'
3826 version_script='-M'
3827 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3828 ;;
3829 netbsd)
3830 disable symver
3831 oss_indev_extralibs="-lossaudio"
3832 oss_outdev_extralibs="-lossaudio"
3833 ;;
3834 openbsd|bitrig)
3835 disable symver
3836 SHFLAGS='-shared'
3837 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3838 SLIB_INSTALL_LINKS=
3839 oss_indev_extralibs="-lossaudio"
3840 oss_outdev_extralibs="-lossaudio"
3841 ;;
3842 dragonfly)
3843 disable symver
3844 ;;
3845 freebsd)
3846 ;;
3847 bsd/os)
3848 add_extralibs -lpoll -lgnugetopt
3849 ;;
3850 darwin)
3851 enabled ppc && add_asflags -force_cpusubtype_ALL
3852 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3853 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3854 add_ldflags -Wl,-dynamic,-search_paths_first
3855 SLIBSUF=".dylib"
3856 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3857 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3858 objformat="macho"
3859 enabled x86_64 && objformat="macho64"
3860 enabled_any pic shared ||
3861 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3862 check_header dispatch/dispatch.h &&
3863 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3864 ;;
3865 msys*)
3866 die "Native MSYS builds are discouraged, please use the MINGW environment."
3867 ;;
3868 mingw32*|mingw64*)
3869 if test $target_os = "mingw32ce"; then
3870 disable network
3871 else
3872 target_os=mingw32
3873 fi
3874 LIBTARGET=i386
3875 if enabled x86_64; then
3876 LIBTARGET="i386:x86-64"
3877 elif enabled arm; then
3878 LIBTARGET=arm-wince
3879 fi
3880 check_ldflags -Wl,--nxcompat
3881 check_ldflags -Wl,--dynamicbase
3882 shlibdir_default="$bindir_default"
3883 SLIBPREF=""
3884 SLIBSUF=".dll"
3885 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3886 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3887 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3888 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3889 SLIB_INSTALL_LINKS=
3890 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3891 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3892 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3893 objformat="win32"
3894 dlltool="${cross_prefix}dlltool"
3895 ranlib=:
3896 enable dos_paths
3897 ;;
3898 win32|win64)
3899 disable symver
3900 if enabled shared; then
3901 # Link to the import library instead of the normal static library
3902 # for shared libs.
3903 LD_LIB='%.lib'
3904 # Cannot build both shared and static libs with MSVC or icl.
3905 disable static
3906 fi
3907 shlibdir_default="$bindir_default"
3908 SLIBPREF=""
3909 SLIBSUF=".dll"
3910 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3911 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3912 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3913 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3914 SLIB_INSTALL_LINKS=
3915 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3916 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3917 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3918 objformat="win32"
3919 ranlib=:
3920 enable dos_paths
3921 ;;
3922 cygwin*)
3923 target_os=cygwin
3924 shlibdir_default="$bindir_default"
3925 SLIBPREF="cyg"
3926 SLIBSUF=".dll"
3927 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3928 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3929 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3930 SLIB_INSTALL_LINKS=
3931 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3932 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3933 objformat="win32"
3934 enable dos_paths
3935 ;;
3936 *-dos|freedos|opendos)
3937 network_extralibs="-lsocket"
3938 objformat="coff"
3939 enable dos_paths
3940 add_cppflags -U__STRICT_ANSI__
3941 ;;
3942 linux)
3943 enable dv1394
3944 enable section_data_rel_ro
3945 ;;
3946 irix*)
3947 target_os=irix
3948 ranlib="echo ignoring ranlib"
3949 ;;
3950 os/2*)
3951 ln_s="cp -f"
3952 objformat="aout"
3953 add_cppflags -D_GNU_SOURCE
3954 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3955 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3956 LIBSUF="_s.a"
3957 SLIBPREF=""
3958 SLIBSUF=".dll"
3959 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3960 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3961 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3962 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3963 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3964 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3965 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3966 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3967 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3968 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3969 enable dos_paths
3970 ;;
3971 gnu/kfreebsd)
3972 add_cppflags -D_BSD_SOURCE
3973 ;;
3974 gnu)
3975 ;;
3976 qnx)
3977 add_cppflags -D_QNX_SOURCE
3978 network_extralibs="-lsocket"
3979 ;;
3980 symbian)
3981 SLIBSUF=".dll"
3982 enable dos_paths
3983 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3984 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3985 add_ldflags -Wl,--target1-abs,--no-undefined \
3986 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3987 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3988 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3989 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3990 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3991 ;;
3992 osf1)
3993 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3994 ;;
3995 minix)
3996 ;;
3997 none)
3998 ;;
3999 *)
4000 die "Unknown OS '$target_os'."
4001 ;;
4002 esac
4003
4004 # determine libc flavour
4005
4006 probe_libc(){
4007 pfx=$1
4008 pfx_no_=${pfx%_}
4009 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4010 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4011 eval ${pfx}libc_type=uclibc
4012 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4013 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4014 eval ${pfx}libc_type=glibc
4015 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4016 # MinGW headers can be installed on Cygwin, so check for newlib first.
4017 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4018 eval ${pfx}libc_type=newlib
4019 add_${pfx}cppflags -U__STRICT_ANSI__
4020 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4021 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4022 eval ${pfx}libc_type=mingw64
4023 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4024 eval test \$${pfx_no_}cc_type = "gcc" &&
4025 add_${pfx}cppflags -D__printf__=__gnu_printf__
4026 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4027 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4028 eval ${pfx}libc_type=mingw32
4029 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4030 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4031 die "ERROR: MinGW32 runtime version must be >= 3.15."
4032 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4033 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4034 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4035 eval test \$${pfx_no_}cc_type = "gcc" &&
4036 add_${pfx}cppflags -D__printf__=__gnu_printf__
4037 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4038 eval ${pfx}libc_type=msvcrt
4039 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4040 if [ "$pfx" = host_ ]; then
4041 add_host_cppflags -Dsnprintf=_snprintf
4042 else
4043 add_compat strtod.o strtod=avpriv_strtod
4044 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4045 _snprintf=avpriv_snprintf \
4046 vsnprintf=avpriv_vsnprintf
4047 fi
4048 fi
4049 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4050 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4051 # 0x601 by default unless something else is set by the user.
4052 # This can easily lead to us detecting functions only present
4053 # in such new versions and producing binaries requiring windows 7.0.
4054 # Therefore explicitly set the default to XP unless the user has
4055 # set something else on the command line.
4056 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4057 # family. For these cases, configure is free to use any functions
4058 # found in the SDK headers by default. (Alternatively, we could force
4059 # _WIN32_WINNT to 0x0602 in that case.)
4060 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4061 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4062 #ifdef WINAPI_FAMILY
4063 #include <winapifamily.h>
4064 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4065 #error not desktop
4066 #endif
4067 #endif
4068 EOF
4069 if [ "$pfx" = "" ]; then
4070 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4071 fi
4072 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4073 eval ${pfx}libc_type=klibc
4074 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4075 eval ${pfx}libc_type=bionic
4076 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4077 eval ${pfx}libc_type=solaris
4078 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4079 else
4080 eval ${pfx}libc_type=default
4081 add_${pfx}cppflags -D_DEFAULT_SOURCE
4082 fi
4083 }
4084
4085 probe_libc
4086 test -n "$libc_type" && enable libc_$libc_type
4087 probe_libc host_
4088 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4089
4090 case $libc_type in
4091 bionic)
4092 add_compat strtod.o strtod=avpriv_strtod
4093 ;;
4094 esac
4095
4096 # hacks for compiler/libc/os combinations
4097
4098 if enabled_all tms470 libc_glibc; then
4099 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4100 add_cppflags -D__USER_LABEL_PREFIX__=
4101 add_cppflags -D__builtin_memset=memset
4102 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4103 add_cflags -pds=48 # incompatible redefinition of macro
4104 fi
4105
4106 if enabled_all ccc libc_glibc; then
4107 add_ldflags -Wl,-z,now # calls to libots crash without this
4108 fi
4109
4110 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4111 add_cppflags '-I\$(SRC_PATH)/compat/float'
4112
4113 esc(){
4114 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4115 }
4116
4117 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4118
4119 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4120
4121 set_default $PATHS_LIST
4122 set_default nm
4123
4124 # we need to build at least one lib type
4125 if ! enabled_any static shared; then
4126 cat <<EOF
4127 At least one library type must be built.
4128 Specify --enable-static to build the static libraries or --enable-shared to
4129 build the shared libraries as well. To only build the shared libraries specify
4130 --disable-static in addition to --enable-shared.
4131 EOF
4132 exit 1
4133 fi
4134
4135 disabled optimizations || check_cflags -fomit-frame-pointer
4136
4137 enable_weak_pic() {
4138 disabled pic && return
4139 enable pic
4140 add_cppflags -DPIC
4141 case "$target_os" in
4142 mingw*|cygwin*)
4143 ;;
4144 *)
4145 add_cflags -fPIC
4146 ;;
4147 esac
4148 add_asflags -fPIC
4149 }
4150
4151 enabled pic && enable_weak_pic
4152
4153 check_cc <<EOF || die "Symbol mangling check failed."
4154 int ff_extern;
4155 EOF
4156 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4157 extern_prefix=${sym%%ff_extern*}
4158
4159 check_cc <<EOF && enable_weak inline_asm
4160 void foo(void) { __asm__ volatile ("" ::); }
4161 EOF
4162
4163 _restrict=
4164 for restrict_keyword in restrict __restrict__ __restrict; do
4165 check_cc <<EOF && _restrict=$restrict_keyword && break
4166 void foo(char * $restrict_keyword p);
4167 EOF
4168 done
4169
4170 check_cc <<EOF && enable pragma_deprecated
4171 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4172 EOF
4173
4174 check_cc <<EOF && enable attribute_packed
4175 struct { int x; } __attribute__((packed)) x;
4176 EOF
4177
4178 check_cc <<EOF && enable attribute_may_alias
4179 union { int x; } __attribute__((may_alias)) x;
4180 EOF
4181
4182 check_cc <<EOF || die "endian test failed"
4183 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4184 EOF
4185 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4186
4187 check_gas() {
4188 log "check_gas using '$as' as AS"
4189 # :vararg is used on aarch64, arm and ppc altivec
4190 check_as <<EOF || return 1
4191 .macro m n, y:vararg=0
4192 \n: .int \y
4193 .endm
4194 m x
4195 EOF
4196 # .altmacro is only used in arm asm
4197 ! enabled arm || check_as <<EOF || return 1
4198 .altmacro
4199 EOF
4200 enable gnu_as
4201 return 0
4202 }
4203
4204 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4205 nogas=:
4206 enabled_any arm aarch64 && nogas=die
4207 enabled_all ppc altivec && nogas=warn
4208 as_noop=-v
4209
4210 case $as_type in
4211 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4212 gcc) gaspp_as_type=gas ;;
4213 *) gaspp_as_type=$as_type ;;
4214 esac
4215
4216 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4217
4218 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4219 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4220
4221 if ! check_gas ; then
4222 as=${gas:=$as}
4223 check_gas || \
4224 $nogas "GNU assembler not found, install/update gas-preprocessor"
4225 fi
4226
4227 check_as <<EOF && enable as_func
4228 .func test
4229 .endfunc
4230 EOF
4231 fi
4232
4233 check_inline_asm inline_asm_labels '"1:\n"'
4234
4235 if enabled aarch64; then
4236 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4237 # internal assembler in clang 3.3 does not support this instruction
4238 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4239 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4240
4241 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4242
4243 elif enabled alpha; then
4244
4245 check_cflags -mieee
4246
4247 elif enabled arm; then
4248
4249 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4250 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4251 enabled thumb && check_cflags -mthumb || check_cflags -marm
4252
4253 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4254 enable vfp_args
4255 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4256 enable vfp_args
4257 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4258 case "${cross_prefix:-$cc}" in
4259 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4260 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4261 __asm__ (".eabi_attribute 28, 1");
4262 int main(void) { return 0; }
4263 EOF
4264 esac
4265 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4266 fi
4267
4268 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4269 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4270 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4271 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4272 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4273 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4274
4275 [ $target_os = linux ] || [ $target_os = android ] ||
4276 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4277 $ARCH_EXT_LIST_ARM
4278
4279 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4280
4281 check_as <<EOF && enable as_dn_directive
4282 ra .dn d0.i16
4283 .unreq ra
4284 EOF
4285 check_as <<EOF && enable as_fpu_directive
4286 .fpu neon
4287 EOF
4288
4289 # llvm's integrated assembler supports .object_arch from llvm 3.5
4290 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4291 .object_arch armv4
4292 EOF
4293
4294 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4295
4296 elif enabled mips; then
4297
4298 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4299
4300 # make sure that only an instruction set is enabled
4301 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4302
4303 if enabled mips64; then
4304 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4305 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4306 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4307 else
4308 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4309 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4310 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4311 fi
4312
4313 elif enabled parisc; then
4314
4315 if enabled gcc; then
4316 case $($cc -dumpversion) in
4317 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4318 esac
4319 fi
4320
4321 elif enabled ppc; then
4322
4323 enable local_aligned_8 local_aligned_16 local_aligned_32
4324
4325 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4326 check_inline_asm ibm_asm '"add 0, 0, 0"'
4327 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4328 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4329
4330 # AltiVec flags: The FSF version of GCC differs from the Apple version
4331 if enabled altivec; then
4332 check_cflags -maltivec -mabi=altivec &&
4333 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4334 check_cflags -faltivec
4335
4336 # check if our compiler supports Motorola AltiVec C API
4337 check_cc <<EOF || disable altivec
4338 $inc_altivec_h
4339 int main(void) {
4340 vector signed int v1 = (vector signed int) { 0 };
4341 vector signed int v2 = (vector signed int) { 1 };
4342 v1 = vec_add(v1, v2);
4343 return 0;
4344 }
4345 EOF
4346
4347 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4348 fi
4349
4350 if enabled vsx; then
4351 check_cflags -mvsx &&
4352 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4353 fi
4354
4355 if enabled power8; then
4356 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4357 fi
4358
4359 elif enabled x86; then
4360
4361 check_builtin rdtsc intrin.h "__rdtsc()"
4362 check_builtin mm_empty mmintrin.h "_mm_empty()"
4363
4364 enable local_aligned_8 local_aligned_16 local_aligned_32
4365
4366 # check whether EBP is available on x86
4367 # As 'i' is stored on the stack, this program will crash
4368 # if the base pointer is used to access it because the
4369 # base pointer is cleared in the inline assembly code.
4370 check_exec_crash <<EOF && enable ebp_available
4371 volatile int i=0;
4372 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4373 return i;
4374 EOF