build: Add an internal component for hevc_ps code
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
236
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
240 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
241 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
242 --enable-libnpp Nvidia CUDA processing
243 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
244 --enable-nvenc Nvidia video encoding
245 --enable-omx OpenMAX IL
246 --enable-omx-rpi OpenMAX IL for Raspberry Pi
247 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
248 --enable-vda Apple Video Decode Acceleration [auto]
249 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
250
251 Toolchain options:
252 --arch=ARCH select architecture [$arch]
253 --cpu=CPU select the minimum required CPU (affects
254 instruction selection, may crash on older CPUs)
255 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
256 --enable-cross-compile assume a cross-compiler is used
257 --sysroot=PATH root of cross-build tree
258 --sysinclude=PATH location of cross-build system headers
259 --target-os=OS compiler targets OS [$target_os]
260 --target-exec=CMD command to run executables on target
261 --target-path=DIR path to view of build directory on target
262 --target-samples=DIR path to samples directory on target
263 --toolchain=NAME set tool defaults according to NAME
264 --nm=NM use nm tool
265 --ar=AR use archive tool AR [$ar_default]
266 --as=AS use assembler AS [$as_default]
267 --cc=CC use C compiler CC [$cc_default]
268 --objcc=OCC use ObjC compiler OCC [$cc_default]
269 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
270 --ld=LD use linker LD
271 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
272 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
273 --host-cc=HOSTCC use host C compiler HOSTCC
274 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
275 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276 --host-ld=HOSTLD use host linker HOSTLD
277 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
278 --host-libs=HLIBS use libs HLIBS when linking for host
279 --host-os=OS compiler host OS [$target_os]
280 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
281 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
282 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
342 --disable-random
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
347 NAME (default 0.5).
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
351
352 NOTE: Object files are built at the place where configure is launched.
353 EOF
354 exit 0
355 }
356
357 quotes='""'
358
359 log(){
360 echo "$@" >> $logfile
361 }
362
363 log_file(){
364 log BEGIN $1
365 i=1
366 while read line; do
367 printf '%5s %s\n' "${i}" "${line}"
368 i=$(($i+1))
369 done < $1 >> $logfile
370 log END $1
371 }
372
373 echolog(){
374 log "$@"
375 echo "$@"
376 }
377
378 warn(){
379 log "WARNING: $*"
380 WARNINGS="${WARNINGS}WARNING: $*\n"
381 }
382
383 die(){
384 echolog "$@"
385 cat <<EOF
386
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
390 EOF
391 if disabled logging; then
392 cat <<EOF
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
395 EOF
396 else
397 cat <<EOF
398 Include the log file "$logfile" produced by configure as this will help
399 solving the problem.
400 EOF
401 fi
402 exit 1
403 }
404
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
406 toupper(){
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
408 }
409
410 tolower(){
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
412 }
413
414 c_escape(){
415 echo "$*" | sed 's/["\\]/\\\0/g'
416 }
417
418 sh_quote(){
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
421 echo "$v"
422 }
423
424 cleanws(){
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
426 }
427
428 filter(){
429 pat=$1
430 shift
431 for v; do
432 eval "case $v in $pat) printf '%s ' $v ;; esac"
433 done
434 }
435
436 filter_out(){
437 pat=$1
438 shift
439 for v; do
440 eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
441 done
442 }
443
444 map(){
445 m=$1
446 shift
447 for v; do eval $m; done
448 }
449
450 add_suffix(){
451 suffix=$1
452 shift
453 for v; do echo ${v}${suffix}; done
454 }
455
456 set_all(){
457 value=$1
458 shift
459 for var in $*; do
460 eval $var=$value
461 done
462 }
463
464 set_weak(){
465 value=$1
466 shift
467 for var; do
468 eval : \${$var:=$value}
469 done
470 }
471
472 sanitize_var_name(){
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
474 }
475
476 set_safe(){
477 var=$1
478 shift
479 eval $(sanitize_var_name "$var")='$*'
480 }
481
482 get_safe(){
483 eval echo \$$(sanitize_var_name "$1")
484 }
485
486 pushvar(){
487 for pvar in $*; do
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
491 done
492 }
493
494 popvar(){
495 for pvar in $*; do
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
502 done
503 }
504
505 enable(){
506 set_all yes $*
507 }
508
509 disable(){
510 set_all no $*
511 }
512
513 enable_weak(){
514 set_weak yes $*
515 }
516
517 disable_weak(){
518 set_weak no $*
519 }
520
521 enable_safe(){
522 for var; do
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524 done
525 }
526
527 disable_safe(){
528 for var; do
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 do_enable_deep(){
534 for var; do
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
538 pushvar var sgs
539 enable_deep $sel
540 popvar sgs
541 enable_deep_weak $sgs
542 popvar var
543 done
544 }
545
546 enable_deep(){
547 do_enable_deep $*
548 enable $*
549 }
550
551 enable_deep_weak(){
552 for var; do
553 disabled $var && continue
554 pushvar var
555 do_enable_deep $var
556 popvar var
557 enable_weak $var
558 done
559 }
560
561 enabled(){
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
564 }
565
566 disabled(){
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
569 }
570
571 enabled_all(){
572 for opt; do
573 enabled $opt || return 1
574 done
575 }
576
577 disabled_all(){
578 for opt; do
579 disabled $opt || return 1
580 done
581 }
582
583 enabled_any(){
584 for opt; do
585 enabled $opt && return 0
586 done
587 }
588
589 disabled_any(){
590 for opt; do
591 disabled $opt && return 0
592 done
593 return 1
594 }
595
596 set_default(){
597 for opt; do
598 eval : \${$opt:=\$${opt}_default}
599 done
600 }
601
602 is_in(){
603 value=$1
604 shift
605 for var in $*; do
606 [ $var = $value ] && return 0
607 done
608 return 1
609 }
610
611 do_check_deps(){
612 for cfg; do
613 cfg="${cfg#!}"
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
617 append allopts $cfg
618
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
625
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
635
636 if enabled $cfg; then
637 enable_deep $dep_sel
638 enable_deep_weak $dep_sgs
639 fi
640
641 disable ${cfg}_checking
642 done
643 }
644
645 check_deps(){
646 unset allopts
647
648 do_check_deps "$@"
649
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
654 done
655 }
656
657 print_config(){
658 pfx=$1
659 files=$2
660 shift 2
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
663 {
664 c = \"$pfx\" toupper(\$1);
665 v = \$2;
666 sub(/yes/, 1, v);
667 sub(/no/, 0, v);
668 for (f in files) {
669 file = files[f];
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
677 }
678 }
679 }"
680 }
681
682 print_enabled(){
683 suf=$1
684 shift
685 for v; do
686 enabled $v && printf "%s\n" ${v%$suf}
687 done
688 }
689
690 append(){
691 var=$1
692 shift
693 eval "$var=\"\$$var $*\""
694 }
695
696 prepend(){
697 var=$1
698 shift
699 eval "$var=\"$* \$$var\""
700 }
701
702 unique(){
703 var=$1
704 uniq_list=""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
707 done
708 eval "$var=\"${uniq_list}\""
709 }
710
711 add_cppflags(){
712 append CPPFLAGS "$@"
713 }
714
715 add_cflags(){
716 append CFLAGS $($cflags_filter "$@")
717 }
718
719 add_cflags_headers(){
720 append CFLAGS_HEADERS $($cflags_filter "$@")
721 }
722
723 add_asflags(){
724 append ASFLAGS $($asflags_filter "$@")
725 }
726
727 add_objcflags(){
728 append OBJCFLAGS $($objcflags_filter "$@")
729 }
730
731 add_ldflags(){
732 append LDFLAGS $($ldflags_filter "$@")
733 }
734
735 add_ldexeflags(){
736 append LDEXEFLAGS $($ldflags_filter "$@")
737 }
738
739 add_stripflags(){
740 append STRIPFLAGS "$@"
741 }
742
743 add_extralibs(){
744 prepend extralibs $($ldflags_filter "$@")
745 }
746
747 add_host_cppflags(){
748 append host_cppflags "$@"
749 }
750
751 add_host_cflags(){
752 append host_cflags $($host_cflags_filter "$@")
753 }
754
755 add_host_ldflags(){
756 append host_ldflags $($host_ldflags_filter "$@")
757 }
758
759 add_compat(){
760 append compat_objs $1
761 shift
762 map 'add_cppflags -D$v' "$@"
763 }
764
765 check_cmd(){
766 log "$@"
767 "$@" >> $logfile 2>&1
768 }
769
770 cc_o(){
771 eval printf '%s\\n' $CC_O
772 }
773
774 cc_e(){
775 eval printf '%s\\n' $CC_E
776 }
777
778 check_cc(){
779 log check_cc "$@"
780 cat > $TMPC
781 log_file $TMPC
782 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
783 }
784
785 check_objcc(){
786 log check_objcc "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
790 }
791
792 check_cpp(){
793 log check_cpp "$@"
794 cat > $TMPC
795 log_file $TMPC
796 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
797 }
798
799 as_o(){
800 eval printf '%s\\n' $AS_O
801 }
802
803 check_as(){
804 log check_as "$@"
805 cat > $TMPS
806 log_file $TMPS
807 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
808 }
809
810 check_inline_asm(){
811 log check_inline_asm "$@"
812 name="$1"
813 code="$2"
814 shift 2
815 disable $name
816 check_cc "$@" <<EOF && enable $name
817 void foo(void){ __asm__ volatile($code); }
818 EOF
819 }
820
821 check_insn(){
822 log check_insn "$@"
823 check_inline_asm ${1}_inline "\"$2\""
824 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
825 }
826
827 check_yasm(){
828 log check_yasm "$@"
829 echo "$1" > $TMPS
830 log_file $TMPS
831 shift 1
832 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
833 }
834
835 ld_o(){
836 eval printf '%s\\n' $LD_O
837 }
838
839 check_ld(){
840 log check_ld "$@"
841 flags=$(filter_out '-l*' "$@")
842 libs=$(filter '-l*' "$@")
843 check_cc $($cflags_filter $flags) || return
844 flags=$($ldflags_filter $flags)
845 libs=$($ldflags_filter $libs)
846 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
847 }
848
849 print_include(){
850 hdr=$1
851 test "${hdr%.h}" = "${hdr}" &&
852 echo "#include $hdr" ||
853 echo "#include <$hdr>"
854 }
855
856 check_code(){
857 log check_code "$@"
858 check=$1
859 headers=$2
860 code=$3
861 shift 3
862 {
863 for hdr in $headers; do
864 print_include $hdr
865 done
866 echo "int main(void) { $code; return 0; }"
867 } | check_$check "$@"
868 }
869
870 check_cppflags(){
871 log check_cppflags "$@"
872 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
873 int x;
874 EOF
875 }
876
877 test_cflags(){
878 log test_cflags "$@"
879 set -- $($cflags_filter "$@")
880 check_cc "$@" <<EOF
881 int x;
882 EOF
883 }
884
885 check_cflags(){
886 log check_cflags "$@"
887 test_cflags "$@" && add_cflags "$@"
888 }
889
890 test_objcflags(){
891 log test_objcflags "$@"
892 set -- $($objcflags_filter "$@")
893 check_objcc "$@" <<EOF
894 int x;
895 EOF
896 }
897
898 check_objcflags(){
899 log check_objcflags "$@"
900 test_objcflags "$@" && add_objcflags "$@"
901 }
902
903 test_ldflags(){
904 log test_ldflags "$@"
905 check_ld "$@" <<EOF
906 int main(void){ return 0; }
907 EOF
908 }
909
910 check_ldflags(){
911 log check_ldflags "$@"
912 test_ldflags "$@" && add_ldflags "$@"
913 }
914
915 test_stripflags(){
916 log test_stripflags "$@"
917 # call check_cc to get a fresh TMPO
918 check_cc <<EOF
919 int main(void) { return 0; }
920 EOF
921 check_cmd $strip $STRIPFLAGS "$@" $TMPO
922 }
923
924 check_stripflags(){
925 log check_stripflags "$@"
926 test_stripflags "$@" && add_stripflags "$@"
927 }
928
929 check_header(){
930 log check_header "$@"
931 header=$1
932 shift
933 disable_safe $header
934 check_cpp "$@" <<EOF && enable_safe $header
935 #include <$header>
936 int x;
937 EOF
938 }
939
940 check_func(){
941 log check_func "$@"
942 func=$1
943 shift
944 disable $func
945 check_ld "$@" <<EOF && enable $func
946 extern int $func();
947 int main(void){ $func(); }
948 EOF
949 }
950
951 check_mathfunc(){
952 log check_mathfunc "$@"
953 func=$1
954 narg=$2
955 shift 2
956 test $narg = 2 && args="f, g" || args="f"
957 disable $func
958 check_ld "$@" <<EOF && enable $func
959 #include <math.h>
960 float foo(float f, float g) { return $func($args); }
961 int main(void){ return 0; }
962 EOF
963 }
964
965 check_func_headers(){
966 log check_func_headers "$@"
967 headers=$1
968 funcs=$2
969 shift 2
970 {
971 for hdr in $headers; do
972 print_include $hdr
973 done
974 for func in $funcs; do
975 echo "long check_$func(void) { return (long) $func; }"
976 done
977 echo "int main(void) { return 0; }"
978 } | check_ld "$@" && enable $funcs && enable_safe $headers
979 }
980
981 check_cpp_condition(){
982 log check_cpp_condition "$@"
983 header=$1
984 condition=$2
985 shift 2
986 check_cpp "$@" <<EOF
987 #include <$header>
988 #if !($condition)
989 #error "unsatisfied condition: $condition"
990 #endif
991 EOF
992 }
993
994 test_cflags_cpp(){
995 log test_cflags_cpp "$@"
996 flags=$1
997 condition=$2
998 shift 2
999 set -- $($cflags_filter "$flags")
1000 check_cpp "$@" <<EOF
1001 #if !($condition)
1002 #error "unsatisfied condition: $condition"
1003 #endif
1004 EOF
1005 }
1006
1007 check_lib(){
1008 log check_lib "$@"
1009 headers="$1"
1010 funcs="$2"
1011 shift 2
1012 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1013 }
1014
1015 check_pkg_config(){
1016 log check_pkg_config "$@"
1017 pkg_version="$1"
1018 pkg="${1%% *}"
1019 headers="$2"
1020 funcs="$3"
1021 shift 3
1022 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1023 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1024 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1025 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1026 set_safe "${pkg}_cflags" $pkg_cflags &&
1027 set_safe "${pkg}_libs" $pkg_libs
1028 }
1029
1030 check_exec(){
1031 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1032 }
1033
1034 check_exec_crash(){
1035 log check_exec_crash "$@"
1036 code=$(cat)
1037
1038 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1039 # are safe but may not be available everywhere. Thus we use
1040 # raise(SIGTERM) instead. The check is run in a subshell so we
1041 # can redirect the "Terminated" message from the shell. SIGBUS
1042 # is not defined by standard C so it is used conditionally.
1043
1044 (check_exec "$@") >> $logfile 2>&1 <<EOF
1045 #include <signal.h>
1046 static void sighandler(int sig){
1047 raise(SIGTERM);
1048 }
1049 int foo(void){
1050 $code
1051 }
1052 int (*func_ptr)(void) = foo;
1053 int main(void){
1054 signal(SIGILL, sighandler);
1055 signal(SIGFPE, sighandler);
1056 signal(SIGSEGV, sighandler);
1057 #ifdef SIGBUS
1058 signal(SIGBUS, sighandler);
1059 #endif
1060 return func_ptr();
1061 }
1062 EOF
1063 }
1064
1065 check_type(){
1066 log check_type "$@"
1067 headers=$1
1068 type=$2
1069 shift 2
1070 disable_safe "$type"
1071 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1072 }
1073
1074 check_struct(){
1075 log check_struct "$@"
1076 headers=$1
1077 struct=$2
1078 member=$3
1079 shift 3
1080 disable_safe "${struct}_${member}"
1081 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1082 enable_safe "${struct}_${member}"
1083 }
1084
1085 check_builtin(){
1086 log check_builtin "$@"
1087 name=$1
1088 headers=$2
1089 builtin=$3
1090 shift 3
1091 disable "$name"
1092 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1093 }
1094
1095 check_compile_assert(){
1096 log check_compile_assert "$@"
1097 name=$1
1098 headers=$2
1099 condition=$3
1100 shift 3
1101 disable "$name"
1102 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1103 }
1104
1105 require(){
1106 log require "$@"
1107 name_version="$1"
1108 headers="$2"
1109 func="$3"
1110 shift 3
1111 check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1112 }
1113
1114 require_pkg_config(){
1115 log require_pkg_config "$@"
1116 pkg_version="$1"
1117 pkg="${1%% *}"
1118 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1119 add_cflags $(get_safe "${pkg}_cflags")
1120 add_extralibs $(get_safe "${pkg}_libs")
1121 }
1122
1123 hostcc_e(){
1124 eval printf '%s\\n' $HOSTCC_E
1125 }
1126
1127 hostcc_o(){
1128 eval printf '%s\\n' $HOSTCC_O
1129 }
1130
1131 check_host_cc(){
1132 log check_host_cc "$@"
1133 cat > $TMPC
1134 log_file $TMPC
1135 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1136 }
1137
1138 check_host_cpp(){
1139 log check_host_cpp "$@"
1140 cat > $TMPC
1141 log_file $TMPC
1142 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1143 }
1144
1145 check_host_cppflags(){
1146 log check_host_cppflags "$@"
1147 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1148 int x;
1149 EOF
1150 }
1151
1152 check_host_cflags(){
1153 log check_host_cflags "$@"
1154 set -- $($host_cflags_filter "$@")
1155 check_host_cc "$@" <<EOF && append host_cflags "$@"
1156 int x;
1157 EOF
1158 }
1159
1160 check_host_cpp_condition(){
1161 log check_host_cpp_condition "$@"
1162 header=$1
1163 condition=$2
1164 shift 2
1165 check_host_cpp "$@" <<EOF
1166 #include <$header>
1167 #if !($condition)
1168 #error "unsatisfied condition: $condition"
1169 #endif
1170 EOF
1171 }
1172
1173 apply(){
1174 file=$1
1175 shift
1176 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1177 }
1178
1179 cp_if_changed(){
1180 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1181 mkdir -p "$(dirname $2)"
1182 cp -f "$1" "$2"
1183 }
1184
1185 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1186 # system-dependent things.
1187
1188 AVCODEC_COMPONENTS="
1189 bsfs
1190 decoders
1191 encoders
1192 hwaccels
1193 parsers
1194 "
1195
1196 AVDEVICE_COMPONENTS="
1197 indevs
1198 outdevs
1199 "
1200 AVFILTER_COMPONENTS="
1201 filters
1202 "
1203 AVFORMAT_COMPONENTS="
1204 demuxers
1205 muxers
1206 protocols
1207 "
1208
1209 AVRESAMPLE_COMPONENTS=""
1210 AVUTIL_COMPONENTS=""
1211
1212 COMPONENT_LIST="
1213 $AVCODEC_COMPONENTS
1214 $AVDEVICE_COMPONENTS
1215 $AVFILTER_COMPONENTS
1216 $AVFORMAT_COMPONENTS
1217 $AVRESAMPLE_COMPONENTS
1218 $AVUTIL_COMPONENTS
1219 "
1220
1221 EXAMPLE_LIST="
1222 decode_audio_example
1223 decode_video_example
1224 encode_audio_example
1225 encode_video_example
1226 filter_audio_example
1227 metadata_example
1228 output_example
1229 qsvdec_example
1230 transcode_aac_example
1231 "
1232
1233 HWACCEL_LIBRARY_NONFREE_LIST="
1234 cuda
1235 libnpp
1236 "
1237 HWACCEL_LIBRARY_LIST="
1238 $HWACCEL_LIBRARY_NONFREE_LIST
1239 d3d11va
1240 dxva2
1241 libmfx
1242 mmal
1243 nvenc
1244 omx
1245 vaapi
1246 vda
1247 vdpau
1248 "
1249
1250 EXTERNAL_LIBRARY_GPL_LIST="
1251 libcdio
1252 libx264
1253 libx265
1254 libxavs
1255 libxvid
1256 "
1257
1258 EXTERNAL_LIBRARY_NONFREE_LIST="
1259 libfaac
1260 libfdk_aac
1261 openssl
1262 "
1263
1264 EXTERNAL_LIBRARY_VERSION3_LIST="
1265 libopencore_amrnb
1266 libopencore_amrwb
1267 libvo_aacenc
1268 libvo_amrwbenc
1269 "
1270
1271 EXTERNAL_LIBRARY_LIST="
1272 $EXTERNAL_LIBRARY_GPL_LIST
1273 $EXTERNAL_LIBRARY_NONFREE_LIST
1274 $EXTERNAL_LIBRARY_VERSION3_LIST
1275 avisynth
1276 avxsynth
1277 bzlib
1278 frei0r
1279 gnutls
1280 libbs2b
1281 libdc1394
1282 libdcadec
1283 libfontconfig
1284 libfreetype
1285 libgsm
1286 libhdcd
1287 libilbc
1288 libkvazaar
1289 libmp3lame
1290 libopencv
1291 libopenh264
1292 libopenjpeg
1293 libopus
1294 libpulse
1295 librtmp
1296 libschroedinger
1297 libsnappy
1298 libspeex
1299 libtheora
1300 libtwolame
1301 libvorbis
1302 libvpx
1303 libwavpack
1304 libwebp
1305 libxcb
1306 libxcb_shm
1307 libxcb_xfixes
1308 zlib
1309 "
1310
1311 FEATURE_LIST="
1312 gray
1313 hardcoded_tables
1314 omx_rpi
1315 runtime_cpudetect
1316 safe_bitstream_reader
1317 shared
1318 small
1319 sram
1320 static
1321 swscale_alpha
1322 "
1323
1324 LIBRARY_LIST="
1325 avcodec
1326 avdevice
1327 avfilter
1328 avformat
1329 avresample
1330 avutil
1331 swscale
1332 "
1333
1334 LICENSE_LIST="
1335 gpl
1336 nonfree
1337 version3
1338 "
1339
1340 PROGRAM_LIST="
1341 avconv
1342 avplay
1343 avprobe
1344 "
1345
1346 SUBSYSTEM_LIST="
1347 dct
1348 doc
1349 error_resilience
1350 faan
1351 fft
1352 lsp
1353 lzo
1354 mdct
1355 network
1356 rdft
1357 "
1358
1359 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1360 CONFIG_LIST="
1361 $EXAMPLE_LIST
1362 $EXTERNAL_LIBRARY_LIST
1363 $HWACCEL_LIBRARY_LIST
1364 $FEATURE_LIST
1365 $LICENSE_LIST
1366 $LIBRARY_LIST
1367 $PROGRAM_LIST
1368 $SUBSYSTEM_LIST
1369 neon_clobber_test
1370 pic
1371 pod2man
1372 texi2html
1373 thumb
1374 valgrind_backtrace
1375 xmm_clobber_test
1376 $COMPONENT_LIST
1377 "
1378
1379 THREADS_LIST="
1380 pthreads
1381 w32threads
1382 "
1383
1384 ATOMICS_LIST="
1385 atomics_gcc
1386 atomics_suncc
1387 atomics_win32
1388 "
1389
1390 ARCH_LIST="
1391 aarch64
1392 alpha
1393 arm
1394 avr32
1395 avr32_ap
1396 avr32_uc
1397 bfin
1398 ia64
1399 m68k
1400 mips
1401 mips64
1402 parisc
1403 ppc
1404 ppc64
1405 s390
1406 sh4
1407 sparc
1408 sparc64
1409 tilegx
1410 tilepro
1411 tomi
1412 x86
1413 x86_32
1414 x86_64
1415 "
1416
1417 ARCH_EXT_LIST_ARM="
1418 armv5te
1419 armv6
1420 armv6t2
1421 armv8
1422 neon
1423 vfp
1424 vfpv3
1425 "
1426
1427 ARCH_EXT_LIST_X86_SIMD="
1428 amd3dnow
1429 amd3dnowext
1430 avx
1431 avx2
1432 fma3
1433 fma4
1434 mmx
1435 mmxext
1436 sse
1437 sse2
1438 sse3
1439 sse4
1440 sse42
1441 ssse3
1442 xop
1443 "
1444
1445 ARCH_EXT_LIST_PPC="
1446 altivec
1447 dcbzl
1448 ldbrx
1449 power8
1450 ppc4xx
1451 vsx
1452 "
1453
1454 ARCH_EXT_LIST_X86="
1455 $ARCH_EXT_LIST_X86_SIMD
1456 cpunop
1457 i686
1458 "
1459
1460 ARCH_EXT_LIST_MIPS="
1461 loongson
1462 mips32r1
1463 mips64r1
1464 mips32r2
1465 mips64r2
1466 mips32r6
1467 mips64r6
1468 "
1469
1470 ARCH_EXT_LIST="
1471 $ARCH_EXT_LIST_ARM
1472 $ARCH_EXT_LIST_MIPS
1473 $ARCH_EXT_LIST_PPC
1474 $ARCH_EXT_LIST_X86
1475 vis
1476 "
1477
1478 ARCH_FEATURES="
1479 aligned_stack
1480 fast_64bit
1481 fast_clz
1482 fast_cmov
1483 local_aligned_8
1484 local_aligned_16
1485 local_aligned_32
1486 simd_align_16
1487 simd_align_32
1488 "
1489
1490 BUILTIN_LIST="
1491 atomic_cas_ptr
1492 machine_rw_barrier
1493 MemoryBarrier
1494 mm_empty
1495 rdtsc
1496 sem_timedwait
1497 sync_val_compare_and_swap
1498 "
1499 HAVE_LIST_CMDLINE="
1500 inline_asm
1501 symver
1502 yasm
1503 "
1504
1505 HAVE_LIST_PUB="
1506 bigendian
1507 fast_unaligned
1508 "
1509
1510 HEADERS_LIST="
1511 AVFoundation_AVFoundation_h
1512 alsa_asoundlib_h
1513 altivec_h
1514 arpa_inet_h
1515 cdio_paranoia_h
1516 cdio_paranoia_paranoia_h
1517 dispatch_dispatch_h
1518 dev_bktr_ioctl_bt848_h
1519 dev_bktr_ioctl_meteor_h
1520 dev_ic_bt8xx_h
1521 dev_video_bktr_ioctl_bt848_h
1522 dev_video_meteor_ioctl_meteor_h
1523 direct_h
1524 dlfcn_h
1525 d3d11_h
1526 dxva_h
1527 gsm_h
1528 io_h
1529 mach_mach_time_h
1530 machine_ioctl_bt848_h
1531 machine_ioctl_meteor_h
1532 malloc_h
1533 poll_h
1534 sndio_h
1535 soundcard_h
1536 stdatomic_h
1537 sys_mman_h
1538 sys_param_h
1539 sys_resource_h
1540 sys_select_h
1541 sys_soundcard_h
1542 sys_time_h
1543 sys_un_h
1544 sys_videoio_h
1545 unistd_h
1546 valgrind_valgrind_h
1547 windows_h
1548 winsock2_h
1549 "
1550
1551 INTRINSICS_LIST="
1552 intrinsics_neon
1553 "
1554
1555 MATH_FUNCS="
1556 atanf
1557 atan2f
1558 cbrtf
1559 cosf
1560 exp2
1561 exp2f
1562 expf
1563 isinf
1564 isnan
1565 ldexpf
1566 llrint
1567 llrintf
1568 log2
1569 log2f
1570 log10f
1571 lrint
1572 lrintf
1573 powf
1574 rint
1575 round
1576 roundf
1577 sinf
1578 trunc
1579 truncf
1580 "
1581
1582 SYSTEM_FUNCS="
1583 aligned_malloc
1584 clock_gettime
1585 closesocket
1586 CommandLineToArgvW
1587 CoTaskMemFree
1588 CryptGenRandom
1589 dlopen
1590 fcntl
1591 flt_lim
1592 fork
1593 getaddrinfo
1594 gethrtime
1595 getopt
1596 GetProcessAffinityMask
1597 GetProcessMemoryInfo
1598 GetProcessTimes
1599 getrusage
1600 GetSystemTimeAsFileTime
1601 gettimeofday
1602 gmtime_r
1603 inet_aton
1604 isatty
1605 jack_port_get_latency_range
1606 LoadLibrary
1607 localtime_r
1608 mach_absolute_time
1609 MapViewOfFile
1610 memalign
1611 mkstemp
1612 mmap
1613 mprotect
1614 nanosleep
1615 posix_memalign
1616 sched_getaffinity
1617 SetConsoleTextAttribute
1618 setmode
1619 setrlimit
1620 Sleep
1621 strerror_r
1622 sysconf
1623 sysctl
1624 usleep
1625 VirtualAlloc
1626 "
1627
1628 TOOLCHAIN_FEATURES="
1629 as_dn_directive
1630 as_fpu_directive
1631 as_func
1632 as_object_arch
1633 asm_mod_q
1634 attribute_may_alias
1635 attribute_packed
1636 ebp_available
1637 ebx_available
1638 gnu_as
1639 ibm_asm
1640 inline_asm_labels
1641 pragma_deprecated
1642 symver_asm_label
1643 symver_gnu_asm
1644 vfp_args
1645 xform_asm
1646 xmm_clobbers
1647 "
1648
1649 TYPES_LIST="
1650 CONDITION_VARIABLE_Ptr
1651 socklen_t
1652 struct_addrinfo
1653 struct_group_source_req
1654 struct_ip_mreq_source
1655 struct_ipv6_mreq
1656 struct_pollfd
1657 struct_rusage_ru_maxrss
1658 struct_sockaddr_in6
1659 struct_sockaddr_sa_len
1660 struct_sockaddr_storage
1661 struct_v4l2_frmivalenum_discrete
1662 "
1663
1664 HAVE_LIST="
1665 $ARCH_EXT_LIST
1666 $(add_suffix _external $ARCH_EXT_LIST)
1667 $(add_suffix _inline $ARCH_EXT_LIST)
1668 $ARCH_FEATURES
1669 $BUILTIN_LIST
1670 $HAVE_LIST_CMDLINE
1671 $HAVE_LIST_PUB
1672 $HEADERS_LIST
1673 $INTRINSICS_LIST
1674 $MATH_FUNCS
1675 $SYSTEM_FUNCS
1676 $THREADS_LIST
1677 $TOOLCHAIN_FEATURES
1678 $TYPES_LIST
1679 dos_paths
1680 dxva2_lib
1681 libc_msvcrt
1682 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1683 sdl
1684 section_data_rel_ro
1685 threads
1686 vaapi_drm
1687 vaapi_x11
1688 vdpau_x11
1689 "
1690
1691 # options emitted with CONFIG_ prefix but not available on the command line
1692 CONFIG_EXTRA="
1693 aandcttables
1694 ac3dsp
1695 audio_frame_queue
1696 audiodsp
1697 blockdsp
1698 bswapdsp
1699 cabac
1700 dirac_parse
1701 dvprofile
1702 faandct
1703 faanidct
1704 fdctdsp
1705 flacdsp
1706 fmtconvert
1707 g722dsp
1708 gmp
1709 golomb
1710 gplv3
1711 h263dsp
1712 h264chroma
1713 h264dsp
1714 h264parse
1715 h264pred
1716 h264qpel
1717 hevc_ps
1718 hpeldsp
1719 huffman
1720 huffyuvdsp
1721 huffyuvencdsp
1722 idctdsp
1723 iirfilter
1724 imdct15
1725 intrax8
1726 iso_media
1727 ividsp
1728 jpegtables
1729 libx262
1730 lgplv3
1731 lpc
1732 lzf
1733 me_cmp
1734 mpeg_er
1735 mpegaudio
1736 mpegaudiodsp
1737 mpegaudioheader
1738 mpegvideo
1739 mpegvideoenc
1740 mss34dsp
1741 pixblockdsp
1742 qpeldsp
1743 qsv
1744 qsvdec
1745 qsvenc
1746 rangecoder
1747 riffdec
1748 riffenc
1749 rtpdec
1750 rtpenc_chain
1751 rv34dsp
1752 sinewin
1753 snappy
1754 srtp
1755 startcode
1756 texturedsp
1757 texturedspenc
1758 tpeldsp
1759 vaapi_encode
1760 vc1dsp
1761 videodsp
1762 vp3dsp
1763 vp56dsp
1764 vp8dsp
1765 wma_freqs
1766 wmv2dsp
1767 "
1768
1769 CMDLINE_SELECT="
1770 $ARCH_EXT_LIST
1771 $CONFIG_LIST
1772 $HAVE_LIST_CMDLINE
1773 $THREADS_LIST
1774 asm
1775 cross_compile
1776 debug
1777 extra_warnings
1778 logging
1779 lto
1780 optimizations
1781 rpath
1782 "
1783
1784 PATHS_LIST="
1785 bindir
1786 datadir
1787 docdir
1788 incdir
1789 libdir
1790 mandir
1791 prefix
1792 shlibdir
1793 "
1794
1795 CMDLINE_SET="
1796 $PATHS_LIST
1797 ar
1798 arch
1799 as
1800 cc
1801 objcc
1802 cpu
1803 cross_prefix
1804 custom_allocator
1805 dep_cc
1806 env
1807 extra_version
1808 host_cc
1809 host_cflags
1810 host_ld
1811 host_ldflags
1812 host_libs
1813 host_os
1814 ld
1815 logfile
1816 malloc_prefix
1817 nm
1818 optflags
1819 pkg_config
1820 pkg_config_flags
1821 random_seed
1822 samples
1823 sysinclude
1824 sysroot
1825 target_exec
1826 target_os
1827 target_path
1828 target_samples
1829 toolchain
1830 "
1831
1832 CMDLINE_APPEND="
1833 extra_cflags
1834 extra_objcflags
1835 host_cppflags
1836 "
1837
1838 # code dependency declarations
1839
1840 # architecture extensions
1841
1842 armv5te_deps="arm"
1843 armv6_deps="arm"
1844 armv6t2_deps="arm"
1845 armv8_deps="aarch64"
1846 neon_deps_any="aarch64 arm"
1847 intrinsics_neon_deps="neon"
1848 vfp_deps_any="aarch64 arm"
1849 vfpv3_deps="vfp"
1850
1851 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1852
1853 altivec_deps="ppc"
1854 ppc4xx_deps="ppc"
1855 vsx_deps="altivec"
1856 power8_deps="vsx"
1857
1858 cpunop_deps="i686"
1859 x86_64_select="i686"
1860 x86_64_suggest="fast_cmov"
1861
1862 amd3dnow_deps="mmx"
1863 amd3dnowext_deps="amd3dnow"
1864 i686_deps="x86"
1865 mmx_deps="x86"
1866 mmxext_deps="mmx"
1867 sse_deps="mmxext"
1868 sse2_deps="sse"
1869 sse3_deps="sse2"
1870 ssse3_deps="sse3"
1871 sse4_deps="ssse3"
1872 sse42_deps="sse4"
1873 avx_deps="sse42"
1874 xop_deps="avx"
1875 fma3_deps="avx"
1876 fma4_deps="avx"
1877 avx2_deps="avx"
1878
1879 mmx_external_deps="yasm"
1880 mmx_inline_deps="inline_asm"
1881 mmx_suggest="mmx_external mmx_inline"
1882
1883 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1884 eval dep=\$${ext}_deps
1885 eval ${ext}_external_deps='"${dep}_external"'
1886 eval ${ext}_inline_deps='"${dep}_inline"'
1887 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1888 done
1889
1890 aligned_stack_if_any="aarch64 ppc x86"
1891 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1892 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1893 fast_unaligned_if_any="aarch64 ppc x86"
1894 simd_align_16_if_any="altivec neon sse"
1895 simd_align_32_if_any="avx"
1896
1897 # system capabilities
1898 symver_if_any="symver_asm_label symver_gnu_asm"
1899 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1900
1901 # threading support
1902 atomics_gcc_if="sync_val_compare_and_swap"
1903 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1904 atomics_win32_if="MemoryBarrier"
1905 atomics_native_if_any="$ATOMICS_LIST"
1906 w32threads_deps="atomics_native"
1907 threads_if_any="$THREADS_LIST"
1908
1909 # subsystems
1910 dct_select="rdft"
1911 dirac_parse_select="golomb"
1912 error_resilience_select="me_cmp"
1913 faandct_deps="faan fdctdsp"
1914 faanidct_deps="faan idctdsp"
1915 h264dsp_select="startcode"
1916 hevc_ps_select="golomb"
1917 intrax8_select="blockdsp idctdsp"
1918 mdct_select="fft"
1919 rdft_select="fft"
1920 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1921 mpeg_er_select="error_resilience"
1922 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1923 mpegaudiodsp_select="dct"
1924 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1925 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1926 vc1dsp_select="h264chroma qpeldsp startcode"
1927
1928 # decoders / encoders
1929 aac_decoder_select="imdct15 mdct sinewin"
1930 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1931 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1932 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1933 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1934 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1935 adpcm_g722_decoder_select="g722dsp"
1936 adpcm_g722_encoder_select="g722dsp"
1937 aic_decoder_select="golomb idctdsp"
1938 alac_encoder_select="lpc"
1939 als_decoder_select="bswapdsp"
1940 amrnb_decoder_select="lsp"
1941 amrwb_decoder_select="lsp"
1942 amv_decoder_select="sp5x_decoder"
1943 ape_decoder_select="bswapdsp"
1944 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1945 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1946 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1947 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1948 atrac1_decoder_select="mdct sinewin"
1949 atrac3_decoder_select="mdct"
1950 atrac3p_decoder_select="mdct sinewin"
1951 bink_decoder_select="blockdsp hpeldsp"
1952 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1953 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1954 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1955 cllc_decoder_select="bswapdsp"
1956 comfortnoise_encoder_select="lpc"
1957 cook_decoder_select="audiodsp mdct sinewin"
1958 cscd_decoder_select="lzo"
1959 cscd_decoder_suggest="zlib"
1960 dca_decoder_select="fmtconvert mdct"
1961 dds_decoder_select="texturedsp"
1962 dnxhd_decoder_select="blockdsp idctdsp"
1963 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1964 dvvideo_decoder_select="dvprofile idctdsp"
1965 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1966 dxa_decoder_deps="zlib"
1967 dxv_decoder_select="lzf texturedsp"
1968 eac3_decoder_select="ac3_decoder"
1969 eac3_encoder_select="ac3_encoder"
1970 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1971 eatgq_decoder_select="aandcttables idctdsp"
1972 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1973 exr_decoder_deps="zlib"
1974 ffv1_decoder_select="golomb rangecoder"
1975 ffv1_encoder_select="rangecoder"
1976 ffvhuff_decoder_select="huffyuv_decoder"
1977 ffvhuff_encoder_select="huffyuv_encoder"
1978 fic_decoder_select="golomb"
1979 flac_decoder_select="flacdsp golomb"
1980 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1981 flashsv_decoder_deps="zlib"
1982 flashsv_encoder_deps="zlib"
1983 flashsv2_decoder_deps="zlib"
1984 flv_decoder_select="h263_decoder"
1985 flv_encoder_select="h263_encoder"
1986 fourxm_decoder_select="blockdsp bswapdsp"
1987 fraps_decoder_select="bswapdsp huffman"
1988 g2m_decoder_deps="zlib"
1989 g2m_decoder_select="blockdsp idctdsp jpegtables"
1990 h261_decoder_select="mpeg_er mpegvideo"
1991 h261_encoder_select="aandcttables mpegvideoenc"
1992 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1993 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1994 h263i_decoder_select="h263_decoder"
1995 h263p_encoder_select="h263_encoder"
1996 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1997 h264_decoder_suggest="error_resilience"
1998 hap_decoder_select="snappy texturedsp"
1999 hap_encoder_deps="libsnappy"
2000 hap_encoder_select="texturedspenc"
2001 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2002 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2003 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2004 iac_decoder_select="imc_decoder"
2005 imc_decoder_select="bswapdsp fft mdct sinewin"
2006 indeo3_decoder_select="hpeldsp"
2007 indeo4_decoder_select="ividsp"
2008 indeo5_decoder_select="ividsp"
2009 interplay_video_decoder_select="hpeldsp"
2010 jpegls_decoder_select="golomb mjpeg_decoder"
2011 jpegls_encoder_select="golomb"
2012 jv_decoder_select="blockdsp"
2013 lagarith_decoder_select="huffyuvdsp"
2014 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2015 loco_decoder_select="golomb"
2016 magicyuv_decoder_select="huffyuvdsp"
2017 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2018 metasound_decoder_select="lsp mdct sinewin"
2019 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2020 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2021 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2022 mjpegb_decoder_select="mjpeg_decoder"
2023 mlp_decoder_select="mlp_parser"
2024 motionpixels_decoder_select="bswapdsp"
2025 mp1_decoder_select="mpegaudio"
2026 mp1float_decoder_select="mpegaudio"
2027 mp2_decoder_select="mpegaudio"
2028 mp2float_decoder_select="mpegaudio"
2029 mp3_decoder_select="mpegaudio"
2030 mp3adu_decoder_select="mpegaudio"
2031 mp3adufloat_decoder_select="mpegaudio"
2032 mp3float_decoder_select="mpegaudio"
2033 mp3on4_decoder_select="mpegaudio"
2034 mp3on4float_decoder_select="mpegaudio"
2035 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2036 mpc8_decoder_select="mpegaudiodsp"
2037 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2038 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2039 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2040 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2041 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2042 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2043 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2044 mpeg4_encoder_select="h263_encoder"
2045 msa1_decoder_select="mss34dsp"
2046 msmpeg4v1_decoder_select="h263_decoder"
2047 msmpeg4v2_decoder_select="h263_decoder"
2048 msmpeg4v2_encoder_select="h263_encoder"
2049 msmpeg4v3_decoder_select="h263_decoder"
2050 msmpeg4v3_encoder_select="h263_encoder"
2051 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2052 mts2_decoder_select="mss34dsp"
2053 mxpeg_decoder_select="mjpeg_decoder"
2054 nellymoser_decoder_select="mdct sinewin"
2055 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2056 nuv_decoder_select="idctdsp lzo"
2057 on2avc_decoder_select="mdct"
2058 opus_decoder_deps="avresample"
2059 opus_decoder_select="imdct15"
2060 png_decoder_deps="zlib"
2061 png_encoder_deps="zlib"
2062 png_encoder_select="huffyuvencdsp"
2063 prores_decoder_select="idctdsp"
2064 prores_encoder_select="fdctdsp"
2065 qcelp_decoder_select="lsp"
2066 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2067 ra_144_encoder_select="audio_frame_queue lpc"
2068 ralf_decoder_select="golomb"
2069 rscc_decoder_deps="zlib"
2070 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2071 rv10_encoder_select="h263_encoder"
2072 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2073 rv20_encoder_select="h263_encoder"
2074 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2075 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2076 screenpresso_decoder_deps="zlib"
2077 shorten_decoder_select="golomb"
2078 sipr_decoder_select="lsp"
2079 sp5x_decoder_select="mjpeg_decoder"
2080 svq1_decoder_select="hpeldsp"
2081 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2082 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2083 svq3_decoder_suggest="zlib"
2084 tak_decoder_select="audiodsp"
2085 tdsc_decoder_deps="zlib"
2086 tdsc_decoder_select="mjpeg_decoder"
2087 theora_decoder_select="vp3_decoder"
2088 thp_decoder_select="mjpeg_decoder"
2089 tiff_decoder_suggest="zlib"
2090 tiff_encoder_suggest="zlib"
2091 truehd_decoder_select="mlp_decoder"
2092 truemotion2_decoder_select="bswapdsp"
2093 truespeech_decoder_select="bswapdsp"
2094 tscc_decoder_deps="zlib"
2095 txd_decoder_select="texturedsp"
2096 twinvq_decoder_select="mdct lsp sinewin"
2097 utvideo_decoder_select="bswapdsp"
2098 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2099 vble_decoder_select="huffyuvdsp"
2100 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2101 vc1image_decoder_select="vc1_decoder"
2102 vorbis_decoder_select="mdct"
2103 vorbis_encoder_select="mdct"
2104 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2105 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2106 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2107 vp6a_decoder_select="vp6_decoder"
2108 vp6f_decoder_select="vp6_decoder"
2109 vp7_decoder_select="h264pred videodsp vp8dsp"
2110 vp8_decoder_select="h264pred videodsp vp8dsp"
2111 vp9_decoder_select="videodsp"
2112 webp_decoder_select="vp8_decoder"
2113 wmapro_decoder_select="mdct sinewin wma_freqs"
2114 wmav1_decoder_select="mdct sinewin wma_freqs"
2115 wmav1_encoder_select="mdct sinewin wma_freqs"
2116 wmav2_decoder_select="mdct sinewin wma_freqs"
2117 wmav2_encoder_select="mdct sinewin wma_freqs"
2118 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2119 wmv1_decoder_select="h263_decoder"
2120 wmv1_encoder_select="h263_encoder"
2121 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2122 wmv2_encoder_select="h263_encoder wmv2dsp"
2123 wmv3_decoder_select="vc1_decoder"
2124 wmv3image_decoder_select="wmv3_decoder"
2125 zerocodec_decoder_deps="zlib"
2126 zlib_decoder_deps="zlib"
2127 zlib_encoder_deps="zlib"
2128 zmbv_decoder_deps="zlib"
2129 zmbv_encoder_deps="zlib"
2130
2131 # hardware accelerators
2132 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2133 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2134 vaapi_deps="va_va_h"
2135 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2136 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2137 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2138
2139 h263_vaapi_hwaccel_deps="vaapi"
2140 h263_vaapi_hwaccel_select="h263_decoder"
2141 h264_d3d11va_hwaccel_deps="d3d11va"
2142 h264_d3d11va_hwaccel_select="h264_decoder"
2143 h264_dxva2_hwaccel_deps="dxva2"
2144 h264_dxva2_hwaccel_select="h264_decoder"
2145 h264_mmal_hwaccel_deps="mmal"
2146 h264_qsv_hwaccel_deps="libmfx"
2147 h264_vaapi_hwaccel_deps="vaapi"
2148 h264_vaapi_hwaccel_select="h264_decoder"
2149 h264_vda_hwaccel_deps="vda"
2150 h264_vda_hwaccel_select="h264_decoder"
2151 h264_vda_old_hwaccel_deps="vda"
2152 h264_vda_old_hwaccel_select="h264_decoder"
2153 h264_vdpau_hwaccel_deps="vdpau"
2154 h264_vdpau_hwaccel_select="h264_decoder"
2155 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2156 hevc_d3d11va_hwaccel_select="hevc_decoder"
2157 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2158 hevc_dxva2_hwaccel_select="hevc_decoder"
2159 hevc_qsv_hwaccel_deps="libmfx"
2160 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2161 hevc_vdpau_hwaccel_select="hevc_decoder"
2162 mpeg1_vdpau_hwaccel_deps="vdpau"
2163 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2164 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2165 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_dxva2_hwaccel_deps="dxva2"
2167 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2168 mpeg2_mmal_hwaccel_deps="mmal"
2169 mpeg2_qsv_hwaccel_deps="libmfx"
2170 mpeg2_vaapi_hwaccel_deps="vaapi"
2171 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2172 mpeg2_vdpau_hwaccel_deps="vdpau"
2173 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2174 mpeg4_vaapi_hwaccel_deps="vaapi"
2175 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2176 mpeg4_vdpau_hwaccel_deps="vdpau"
2177 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2178 vc1_d3d11va_hwaccel_deps="d3d11va"
2179 vc1_d3d11va_hwaccel_select="vc1_decoder"
2180 vc1_dxva2_hwaccel_deps="dxva2"
2181 vc1_dxva2_hwaccel_select="vc1_decoder"
2182 vc1_mmal_hwaccel_deps="mmal"
2183 vc1_qsv_hwaccel_deps="libmfx"
2184 vc1_vaapi_hwaccel_deps="vaapi"
2185 vc1_vaapi_hwaccel_select="vc1_decoder"
2186 vc1_vdpau_hwaccel_deps="vdpau"
2187 vc1_vdpau_hwaccel_select="vc1_decoder"
2188 vp8_qsv_hwaccel_deps="libmfx"
2189 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2190 vp8_vaapi_hwaccel_select="vp8_decoder"
2191 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2192 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2193 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2194 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2195
2196 # hardware-accelerated codecs
2197 nvenc_deps_any="dlopen LoadLibrary"
2198 nvenc_extralibs='$ldl'
2199 omx_deps="dlopen pthreads"
2200 omx_extralibs='$ldl'
2201 omx_rpi_select="omx"
2202 qsvdec_select="qsv"
2203 qsvenc_select="qsv"
2204 vaapi_encode_deps="vaapi"
2205
2206 hwupload_cuda_filter_deps="cuda"
2207 scale_npp_filter_deps="cuda libnpp"
2208
2209 h264_mmal_decoder_deps="mmal"
2210 h264_nvenc_encoder_deps="nvenc"
2211 h264_omx_encoder_deps="omx"
2212 h264_qsv_decoder_deps="libmfx"
2213 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2214 h264_qsv_encoder_deps="libmfx"
2215 h264_qsv_encoder_select="qsvenc"
2216 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2217 h264_vaapi_encoder_select="vaapi_encode golomb"
2218 hevc_nvenc_encoder_deps="nvenc"
2219 hevc_qsv_decoder_deps="libmfx"
2220 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2221 hevc_qsv_encoder_deps="libmfx"
2222 hevc_qsv_encoder_select="hevc_ps qsvenc"
2223 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2224 hevc_vaapi_encoder_select="vaapi_encode golomb"
2225 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2226 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2227 mpeg2_mmal_decoder_deps="mmal"
2228 mpeg2_qsv_decoder_deps="libmfx"
2229 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2230 mpeg2_qsv_encoder_deps="libmfx"
2231 mpeg2_qsv_encoder_select="qsvenc"
2232 mpeg4_omx_encoder_deps="omx"
2233 vc1_mmal_decoder_deps="mmal"
2234 vc1_qsv_decoder_deps="libmfx"
2235 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2236 vp8_qsv_decoder_deps="libmfx"
2237 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2238
2239 nvenc_h264_encoder_select="h264_nvenc_encoder"
2240 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2241
2242 # parsers
2243 h264_parser_select="golomb h264dsp h264parse"
2244 hevc_parser_select="hevc_ps"
2245 mpegaudio_parser_select="mpegaudioheader"
2246 mpegvideo_parser_select="mpegvideo"
2247 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2248 vc1_parser_select="vc1dsp"
2249
2250 # bitstream_filters
2251 mjpeg2jpeg_bsf_select="jpegtables"
2252
2253 # external libraries
2254 avisynth_deps="LoadLibrary"
2255 avxsynth_deps="dlopen"
2256 avisynth_demuxer_deps_any="avisynth avxsynth"
2257 avisynth_demuxer_select="riffdec"
2258 libdcadec_decoder_deps="libdcadec"
2259 libfaac_encoder_deps="libfaac"
2260 libfaac_encoder_select="audio_frame_queue"
2261 libfdk_aac_decoder_deps="libfdk_aac"
2262 libfdk_aac_encoder_deps="libfdk_aac"
2263 libfdk_aac_encoder_select="audio_frame_queue"
2264 libgsm_decoder_deps="libgsm"
2265 libgsm_encoder_deps="libgsm"
2266 libgsm_ms_decoder_deps="libgsm"
2267 libgsm_ms_encoder_deps="libgsm"
2268 libilbc_decoder_deps="libilbc"
2269 libilbc_encoder_deps="libilbc"
2270 libkvazaar_encoder_deps="libkvazaar"
2271 libmp3lame_encoder_deps="libmp3lame"
2272 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2273 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2274 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2275 libopencore_amrnb_encoder_select="audio_frame_queue"
2276 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2277 libopenh264_decoder_deps="libopenh264"
2278 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2279 libopenh264_encoder_deps="libopenh264"
2280 libopenjpeg_decoder_deps="libopenjpeg"
2281 libopenjpeg_encoder_deps="libopenjpeg"
2282 libopus_decoder_deps="libopus"
2283 libopus_encoder_deps="libopus"
2284 libopus_encoder_select="audio_frame_queue"
2285 libschroedinger_decoder_deps="libschroedinger"
2286 libschroedinger_encoder_deps="libschroedinger"
2287 libspeex_decoder_deps="libspeex"
2288 libspeex_encoder_deps="libspeex"
2289 libspeex_encoder_select="audio_frame_queue"
2290 libtheora_encoder_deps="libtheora"
2291 libtwolame_encoder_deps="libtwolame"
2292 libvo_aacenc_encoder_deps="libvo_aacenc"
2293 libvo_aacenc_encoder_select="audio_frame_queue"
2294 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2295 libvorbis_encoder_deps="libvorbis"
2296 libvorbis_encoder_select="audio_frame_queue"
2297 libvpx_vp8_decoder_deps="libvpx"
2298 libvpx_vp8_encoder_deps="libvpx"
2299 libvpx_vp9_decoder_deps="libvpx"
2300 libvpx_vp9_encoder_deps="libvpx"
2301 libwavpack_encoder_deps="libwavpack"
2302 libwavpack_encoder_select="audio_frame_queue"
2303 libwebp_encoder_deps="libwebp"
2304 libx262_encoder_deps="libx262"
2305 libx264_encoder_deps="libx264"
2306 libx265_encoder_deps="libx265"
2307 libxavs_encoder_deps="libxavs"
2308 libxvid_encoder_deps="libxvid mkstemp"
2309
2310 # demuxers / muxers
2311 ac3_demuxer_select="ac3_parser"
2312 asf_demuxer_select="riffdec"
2313 asf_muxer_select="riffenc"
2314 asf_stream_muxer_select="asf_muxer"
2315 avi_demuxer_select="iso_media riffdec"
2316 avi_muxer_select="riffenc"
2317 caf_demuxer_select="iso_media riffdec"
2318 dash_muxer_select="mp4_muxer"
2319 dirac_demuxer_select="dirac_parser"
2320 dv_demuxer_select="dvprofile"
2321 dv_muxer_select="dvprofile"
2322 dxa_demuxer_select="riffdec"
2323 eac3_demuxer_select="ac3_parser"
2324 f4v_muxer_select="mov_muxer"
2325 flac_demuxer_select="flac_parser"
2326 hds_muxer_select="flv_muxer"
2327 hls_muxer_select="mpegts_muxer"
2328 ipod_muxer_select="mov_muxer"
2329 ismv_muxer_select="mov_muxer"
2330 matroska_audio_muxer_select="matroska_muxer"
2331 matroska_demuxer_select="iso_media riffdec"
2332 matroska_demuxer_suggest="bzlib lzo zlib"
2333 matroska_muxer_select="iso_media riffenc"
2334 mmf_muxer_select="riffenc"
2335 mov_demuxer_select="iso_media riffdec"
2336 mov_demuxer_suggest="zlib"
2337 mov_muxer_select="iso_media riffenc rtpenc_chain"
2338 mp3_demuxer_select="mpegaudio_parser"
2339 mp3_muxer_select="mpegaudioheader"
2340 mp4_muxer_select="mov_muxer"
2341 mpegts_demuxer_select="iso_media"
2342 mpegts_muxer_select="adts_muxer latm_muxer"
2343 mpegtsraw_demuxer_select="mpegts_demuxer"
2344 mxf_d10_muxer_select="mxf_muxer"
2345 nut_muxer_select="riffenc"
2346 nuv_demuxer_select="riffdec"
2347 oga_muxer_select="ogg_muxer"
2348 ogg_demuxer_select="dirac_parse"
2349 opus_muxer_select="ogg_muxer"
2350 psp_muxer_select="mov_muxer"
2351 rtp_demuxer_select="sdp_demuxer"
2352 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2353 rtsp_demuxer_select="http_protocol rtpdec"
2354 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2355 sap_demuxer_select="sdp_demuxer"
2356 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2357 sdp_demuxer_select="rtpdec"
2358 smoothstreaming_muxer_select="ismv_muxer"
2359 spdif_muxer_select="aac_parser"
2360 spx_muxer_select="ogg_muxer"
2361 swf_demuxer_suggest="zlib"
2362 tak_demuxer_select="tak_parser"
2363 tg2_muxer_select="mov_muxer"
2364 tgp_muxer_select="mov_muxer"
2365 w64_demuxer_select="wav_demuxer"
2366 wav_demuxer_select="riffdec"
2367 wav_muxer_select="riffenc"
2368 webm_muxer_select="iso_media riffenc"
2369 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2370 wtv_demuxer_select="mpegts_demuxer riffdec"
2371 xmv_demuxer_select="riffdec"
2372 xwma_demuxer_select="riffdec"
2373
2374 # indevs / outdevs
2375 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2376 alsa_outdev_deps="alsa_asoundlib_h"
2377 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2378 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2379 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2380 dv1394_indev_deps="dv1394"
2381 dv1394_indev_select="dv_demuxer"
2382 fbdev_indev_deps="linux_fb_h"
2383 jack_indev_deps="jack_jack_h"
2384 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2385 libcdio_indev_deps="libcdio"
2386 libdc1394_indev_deps="libdc1394"
2387 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2388 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2389 pulse_indev_deps="libpulse"
2390 sndio_indev_deps="sndio_h"
2391 sndio_outdev_deps="sndio_h"
2392 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2393 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2394 vfwcap_indev_extralibs="-lavicap32"
2395 xcbgrab_indev_deps="libxcb"
2396
2397 # protocols
2398 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2399 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2400 ffrtmpcrypt_protocol_select="tcp_protocol"
2401 ffrtmphttp_protocol_deps="!librtmp_protocol"
2402 ffrtmphttp_protocol_select="http_protocol"
2403 gopher_protocol_select="network"
2404 http_protocol_select="tcp_protocol"
2405 httpproxy_protocol_select="tcp_protocol"
2406 https_protocol_select="tls_protocol"
2407 icecast_protocol_select="http_protocol"
2408 librtmp_protocol_deps="librtmp"
2409 librtmpe_protocol_deps="librtmp"
2410 librtmps_protocol_deps="librtmp"
2411 librtmpt_protocol_deps="librtmp"
2412 librtmpte_protocol_deps="librtmp"
2413 mmsh_protocol_select="http_protocol"
2414 mmst_protocol_select="network"
2415 rtmp_protocol_deps="!librtmp_protocol"
2416 rtmp_protocol_select="tcp_protocol"
2417 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2418 rtmps_protocol_deps="!librtmp_protocol"
2419 rtmps_protocol_select="tls_protocol"
2420 rtmpt_protocol_select="ffrtmphttp_protocol"
2421 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2422 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2423 rtp_protocol_select="udp_protocol"
2424 sctp_protocol_deps="struct_sctp_event_subscribe"
2425 sctp_protocol_select="network"
2426 srtp_protocol_select="rtp_protocol srtp"
2427 tcp_protocol_select="network"
2428 tls_gnutls_protocol_deps="gnutls"
2429 tls_gnutls_protocol_select="tcp_protocol"
2430 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2431 tls_openssl_protocol_select="tcp_protocol"
2432 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2433 udp_protocol_select="network"
2434 unix_protocol_deps="sys_un_h"
2435 unix_protocol_select="network"
2436
2437 # filters
2438 asyncts_filter_deps="avresample"
2439 blackframe_filter_deps="gpl"
2440 boxblur_filter_deps="gpl"
2441 bs2b_filter_deps="libbs2b"
2442 cropdetect_filter_deps="gpl"
2443 deinterlace_qsv_filter_deps="libmfx"
2444 delogo_filter_deps="gpl"
2445 drawtext_filter_deps="libfreetype"
2446 frei0r_filter_deps="frei0r dlopen"
2447 frei0r_filter_extralibs='$ldl'
2448 frei0r_src_filter_deps="frei0r dlopen"
2449 frei0r_src_filter_extralibs='$ldl'
2450 hdcd_filter_deps="libhdcd"
2451 hqdn3d_filter_deps="gpl"
2452 interlace_filter_deps="gpl"
2453 movie_filter_deps="avcodec avformat"
2454 ocv_filter_deps="libopencv"
2455 resample_filter_deps="avresample"
2456 scale_filter_deps="swscale"
2457 scale_qsv_filter_deps="libmfx"
2458 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2459
2460 # examples
2461 decode_audio_example_deps="avcodec avutil"
2462 decode_video_example_deps="avcodec avutil"
2463 encode_audio_example_deps="avcodec avutil"
2464 encode_video_example_deps="avcodec avutil"
2465 filter_audio_example_deps="avfilter avutil"
2466 metadata_example_deps="avformat avutil"
2467 output_example_deps="avcodec avformat avresample avutil swscale"
2468 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2469 transcode_aac_example_deps="avcodec avformat avresample"
2470
2471 # libraries, in linking order
2472 avcodec_deps="avutil"
2473 avdevice_deps="avformat avcodec avutil"
2474 avfilter_deps="avutil"
2475 avformat_deps="avcodec avutil"
2476 avresample_deps="avutil"
2477 swscale_deps="avutil"
2478
2479 # programs
2480 avconv_deps="avcodec avfilter avformat avresample swscale"
2481 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2482 fps_filter null_filter resample_filter scale_filter
2483 trim_filter"
2484 avplay_deps="avcodec avfilter avformat avresample sdl"
2485 avplay_libs='$sdl_libs'
2486 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2487 avprobe_deps="avcodec avformat"
2488
2489 # documentation
2490 pod2man_deps="doc"
2491 texi2html_deps="doc"
2492
2493 # default parameters
2494
2495 logfile="config.log"
2496
2497 # installation paths
2498 prefix_default="/usr/local"
2499 bindir_default='${prefix}/bin'
2500 datadir_default='${prefix}/share/avconv'
2501 docdir_default='${prefix}/share/doc/libav'
2502 incdir_default='${prefix}/include'
2503 libdir_default='${prefix}/lib'
2504 mandir_default='${prefix}/share/man'
2505 shlibdir_default="$libdir_default"
2506
2507 # toolchain
2508 ar_default="ar"
2509 cc_default="gcc"
2510 host_cc_default="gcc"
2511 ln_s="ln -s -f"
2512 nm_default="nm -g"
2513 objformat="elf"
2514 pkg_config_default=pkg-config
2515 ranlib="ranlib"
2516 strip="strip"
2517 version_script='--version-script'
2518 yasmexe="yasm"
2519
2520 # machine
2521 arch_default=$(uname -m)
2522 cpu="generic"
2523 intrinsics="none"
2524
2525 # OS
2526 target_os_default=$(tolower $(uname -s))
2527 host_os=$target_os_default
2528
2529 # configurable options
2530 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2531
2532 enable asm
2533 enable debug
2534 enable doc
2535 enable faan faandct faanidct
2536 enable optimizations
2537 enable safe_bitstream_reader
2538 enable static
2539 enable swscale_alpha
2540 enable valgrind_backtrace
2541
2542 # By default, enable only those hwaccels that have no external dependencies.
2543 enable d3d11va dxva2 vda vdpau
2544
2545 # build settings
2546 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2547 LIBPREF="lib"
2548 LIBSUF=".a"
2549 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2550 SLIBPREF="lib"
2551 SLIBSUF=".so"
2552 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2553 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2554 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2555 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2556 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2557 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2558 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2559
2560 asflags_filter=echo
2561 cflags_filter=echo
2562 ldflags_filter=echo
2563
2564 AS_C='-c'
2565 AS_O='-o $@'
2566 CC_C='-c'
2567 CC_E='-E -o $@'
2568 CC_O='-o $@'
2569 OBJCC_C='-c'
2570 OBJCC_E='-E -o $@'
2571 OBJCC_O='-o $@'
2572 LD_O='-o $@'
2573 LD_LIB='-l%'
2574 LD_PATH='-L'
2575 HOSTCC_C='-c'
2576 HOSTCC_E='-E -o $@'
2577 HOSTCC_O='-o $@'
2578 HOSTLD_O='-o $@'
2579
2580 host_libs='-lm'
2581 host_cflags_filter=echo
2582 host_ldflags_filter=echo
2583
2584 target_path='$(CURDIR)'
2585
2586 # since the object filename is not given with the -MM flag, the compiler
2587 # is only able to print the basename, and we must add the path ourselves
2588 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2589 DEPFLAGS='-MM'
2590
2591 # find source path
2592 if test -f configure; then
2593 source_path=.
2594 else
2595 source_path=$(cd $(dirname "$0"); pwd)
2596 echo "$source_path" | grep -q '[[:blank:]]' &&
2597 die "Out of tree builds are impossible with whitespace in source path."
2598 test -e "$source_path/config.h" &&
2599 die "Out of tree builds are impossible with config.h in source dir."
2600 fi
2601
2602 for v in "$@"; do
2603 r=${v#*=}
2604 l=${v%"$r"}
2605 r=$(sh_quote "$r")
2606 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2607 done
2608
2609 find_things(){
2610 thing=$1
2611 pattern=$2
2612 file=$source_path/$3
2613 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2614 }
2615
2616 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2617 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2618 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2619 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2620 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2621 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2622 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2623 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2624 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2625
2626 find_things_extern(){
2627 thing=$1
2628 pattern=$2
2629 file=$source_path/$3
2630 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2631 }
2632
2633 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2634 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2635
2636 ALL_COMPONENTS="
2637 $BSF_LIST
2638 $DECODER_LIST
2639 $DEMUXER_LIST
2640 $ENCODER_LIST
2641 $FILTER_LIST
2642 $HWACCEL_LIST
2643 $INDEV_LIST
2644 $MUXER_LIST
2645 $OUTDEV_LIST
2646 $PARSER_LIST
2647 $PROTOCOL_LIST
2648 "
2649
2650 for n in $COMPONENT_LIST; do
2651 v=$(toupper ${n%s})_LIST
2652 eval enable \$$v
2653 eval ${n}_if_any="\$$v"
2654 done
2655
2656 enable $ARCH_EXT_LIST
2657
2658 die_unknown(){
2659 echo "Unknown option \"$1\"."
2660 echo "See $0 --help for available options."
2661 exit 1
2662 }
2663
2664 print_3_columns() {
2665 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2666 }
2667
2668 show_list() {
2669 suffix=_$1
2670 shift
2671 echo $* | sed s/$suffix//g | print_3_columns
2672 exit 0
2673 }
2674
2675 rand_list(){
2676 IFS=', '
2677 set -- $*
2678 unset IFS
2679 for thing; do
2680 comp=${thing%:*}
2681 prob=${thing#$comp}
2682 prob=${prob#:}
2683 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2684 echo "prob ${prob:-0.5}"
2685 printf '%s\n' $comp
2686 done
2687 }
2688
2689 do_random(){
2690 action=$1
2691 shift
2692 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2693 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2694 }
2695
2696 for opt do
2697 optval="${opt#*=}"
2698 case "$opt" in
2699 --extra-ldflags=*)
2700 add_ldflags $optval
2701 ;;
2702 --extra-ldexeflags=*)
2703 add_ldexeflags $optval
2704 ;;
2705 --extra-libs=*)
2706 add_extralibs $optval
2707 ;;
2708 --disable-devices)
2709 disable $INDEV_LIST $OUTDEV_LIST
2710 ;;
2711 --enable-debug=*)
2712 debuglevel="$optval"
2713 ;;
2714 --disable-programs)
2715 disable $PROGRAM_LIST
2716 ;;
2717 --disable-everything)
2718 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2719 ;;
2720 --disable-all)
2721 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2722 disable $LIBRARY_LIST $PROGRAM_LIST doc
2723 ;;
2724 --enable-random|--disable-random)
2725 action=${opt%%-random}
2726 do_random ${action#--} $COMPONENT_LIST
2727 ;;
2728 --enable-random=*|--disable-random=*)
2729 action=${opt%%-random=*}
2730 do_random ${action#--} $optval
2731 ;;
2732 --enable-*=*|--disable-*=*)
2733 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2734 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2735 eval list=\$$(toupper $thing)_LIST
2736 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2737 $action $(filter "$name" $list)
2738 ;;
2739 --enable-avserver|--disable-avserver*)
2740 warn "avserver has been removed, the ${opt} option is only"\
2741 "provided for compatibility and will be removed in the future"
2742 ;;
2743 --enable-?*|--disable-?*)
2744 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2745 if is_in $option $COMPONENT_LIST; then
2746 test $action = disable && action=unset
2747 eval $action \$$(toupper ${option%s})_LIST
2748 elif is_in $option $CMDLINE_SELECT; then
2749 $action $option
2750 else
2751 die_unknown $opt
2752 fi
2753 ;;
2754 --list-*)
2755 NAME="${opt#--list-}"
2756 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2757 NAME=${NAME%s}
2758 eval show_list $NAME \$$(toupper $NAME)_LIST
2759 ;;
2760 --help|-h) show_help
2761 ;;
2762 --quiet|-q) quiet=yes
2763 ;;
2764 *)
2765 optname="${opt%%=*}"
2766 optname="${optname#--}"
2767 optname=$(echo "$optname" | sed 's/-/_/g')
2768 if is_in $optname $CMDLINE_SET; then
2769 eval $optname='$optval'
2770 elif is_in $optname $CMDLINE_APPEND; then
2771 append $optname "$optval"
2772 else
2773 die_unknown $opt
2774 fi
2775 ;;
2776 esac
2777 done
2778
2779 for e in $env; do
2780 eval "export $e"
2781 done
2782
2783 disabled logging && logfile=/dev/null
2784
2785 # Die early if licensing-related configure options are incompatible.
2786 die_license_disabled() {
2787 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2788 }
2789
2790 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2791 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2792 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2793
2794 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2795
2796 # Disable all the library-specific components if the library itself
2797 # is disabled, see AVCODEC_LIST and following _LIST variables.
2798
2799 disable_components(){
2800 disabled ${1} && disable $(
2801 eval components="\$$(toupper ${1})_COMPONENTS"
2802 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2803 )
2804 }
2805
2806 map 'disable_components $v' $LIBRARY_LIST
2807
2808 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2809 set >> $logfile
2810
2811 case "$toolchain" in
2812 *-asan)
2813 cc_default="${toolchain%-asan}"
2814 add_cflags -fsanitize=address
2815 add_ldflags -fsanitize=address
2816 ;;
2817 *-msan)
2818 cc_default="${toolchain%-msan}"
2819 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2820 add_ldflags -fsanitize=memory
2821 ;;
2822 *-tsan)
2823 cc_default="${toolchain%-tsan}"
2824 add_cflags -fsanitize=thread -fPIE
2825 add_ldflags -fsanitize=thread -pie
2826 case "$toolchain" in
2827 gcc-tsan)
2828 add_cflags -fPIC
2829 add_ldflags -fPIC
2830 ;;
2831 esac
2832 ;;
2833 *-usan)
2834 cc_default="${toolchain%-usan}"
2835 add_cflags -fsanitize=undefined
2836 add_ldflags -fsanitize=undefined
2837 case "$toolchain" in
2838 clang-usan)
2839 add_cflags -O1
2840 ;;
2841 esac
2842 ;;
2843 valgrind-*)
2844 target_exec_default="valgrind"
2845 case "$toolchain" in
2846 valgrind-massif)
2847 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2848 ;;
2849 valgrind-memcheck)
2850 target_exec_args="--track-origins=yes --leak-check=full"
2851 ;;
2852 esac
2853 ;;
2854 msvc)
2855 # Check whether the current MSVC version needs the C99 converter.
2856 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2857 # support enough of C99 to build libav. Default to the new
2858 # behaviour if the regexp was unable to match anything, since this
2859 # successfully parses the version number of existing supported
2860 # versions that require the converter (MSVC 2010 and 2012).
2861 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2862 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2863 cc_default="cl"
2864 else
2865 cc_default="c99wrap cl"
2866 fi
2867 ld_default="$source_path/compat/windows/mslink"
2868 nm_default="dumpbin -symbols"
2869 ar_default="lib"
2870 case "$arch" in
2871 arm*)
2872 as_default="armasm"
2873 ;;
2874 esac
2875 target_os_default="win32"
2876 # Use a relative path for TMPDIR. This makes sure all the
2877 # ffconf temp files are written with a relative path, avoiding
2878 # issues with msys/win32 path conversion for MSVC parameters
2879 # such as -Fo<file> or -out:<file>.
2880 TMPDIR=.
2881 ;;
2882 icl)
2883 cc_default="icl"
2884 ld_default="xilink"
2885 nm_default="dumpbin -symbols"
2886 ar_default="xilib"
2887 target_os_default="win32"
2888 TMPDIR=.
2889 ;;
2890 gcov)
2891 add_cflags -fprofile-arcs -ftest-coverage
2892 add_ldflags -fprofile-arcs -ftest-coverage
2893 ;;
2894 llvm-cov)
2895 add_cflags -fprofile-arcs -ftest-coverage
2896 add_ldflags --coverage
2897 ;;
2898 hardened)
2899 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2900 add_cflags -fno-strict-overflow -fstack-protector-all
2901 add_ldflags -Wl,-z,relro -Wl,-z,now
2902 ;;
2903 ?*)
2904 die "Unknown toolchain $toolchain"
2905 ;;
2906 esac
2907
2908 test -n "$cross_prefix" && enable cross_compile
2909
2910 if enabled cross_compile; then
2911 test -n "$arch" && test -n "$target_os" ||
2912 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2913 fi
2914
2915 ar_default="${cross_prefix}${ar_default}"
2916 cc_default="${cross_prefix}${cc_default}"
2917 occ_default="${cross_prefix}${occ_default}"
2918 nm_default="${cross_prefix}${nm_default}"
2919 pkg_config_default="${cross_prefix}${pkg_config_default}"
2920 ranlib="${cross_prefix}${ranlib}"
2921 strip="${cross_prefix}${strip}"
2922
2923 sysinclude_default="${sysroot}/usr/include"
2924
2925 set_default arch cc pkg_config sysinclude target_exec target_os
2926 enabled cross_compile || host_cc_default=$cc
2927 set_default host_cc
2928
2929 if ! $pkg_config --version >/dev/null 2>&1; then
2930 warn "$pkg_config not found, library detection may fail."
2931 pkg_config=false
2932 fi
2933
2934 exesuf() {
2935 case $1 in
2936 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2937 esac
2938 }
2939
2940 EXESUF=$(exesuf $target_os)
2941 HOSTEXESUF=$(exesuf $host_os)
2942
2943 # set temporary file name
2944 : ${TMPDIR:=$TEMPDIR}
2945 : ${TMPDIR:=$TMP}
2946 : ${TMPDIR:=/tmp}
2947
2948 if ! check_cmd mktemp -u XXXXXX; then
2949 # simple replacement for missing mktemp
2950 # NOT SAFE FOR GENERAL USE
2951 mktemp(){
2952 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2953 }
2954 fi
2955
2956 tmpfile(){
2957 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2958 (set -C; exec > $tmp) 2>/dev/null ||
2959 die "Unable to create temporary file in $TMPDIR."
2960 append TMPFILES $tmp
2961 eval $1=$tmp
2962 }
2963
2964 trap 'rm -f -- $TMPFILES' EXIT
2965
2966 tmpfile TMPASM .asm
2967 tmpfile TMPC .c
2968 tmpfile TMPE $EXESUF
2969 tmpfile TMPH .h
2970 tmpfile TMPO .o
2971 tmpfile TMPS .S
2972 tmpfile TMPSH .sh
2973 tmpfile TMPV .ver
2974
2975 unset -f mktemp
2976
2977 chmod +x $TMPE
2978
2979 # make sure we can execute files in $TMPDIR
2980 cat > $TMPSH 2>> $logfile <<EOF
2981 #! /bin/sh
2982 EOF
2983 chmod +x $TMPSH >> $logfile 2>&1
2984 if ! $TMPSH >> $logfile 2>&1; then
2985 cat <<EOF
2986 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2987 variable to another directory and make sure that it is not mounted noexec.
2988 EOF
2989 die "Sanity test failed."
2990 fi
2991
2992 armasm_flags(){
2993 for flag; do
2994 case $flag in
2995 # Filter out MSVC cl.exe options from cflags that shouldn't
2996 # be passed to gas-preprocessor
2997 -M[TD]*) ;;
2998 *) echo $flag ;;
2999 esac
3000 done
3001 }
3002
3003 ccc_flags(){
3004 for flag; do
3005 case $flag in
3006 -std=c99) echo -c99 ;;
3007 -mcpu=*) echo -arch ${flag#*=} ;;
3008 -mieee) echo -ieee ;;
3009 -O*|-fast) echo $flag ;;
3010 -fno-math-errno) echo -assume nomath_errno ;;
3011 -g) echo -g3 ;;
3012 -Wall) echo -msg_enable level2 ;;
3013 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3014 -Wl,*) echo $flag ;;
3015 -f*|-W*) ;;
3016 *) echo $flag ;;
3017 esac
3018 done
3019 }
3020
3021 cparser_flags(){
3022 for flag; do
3023 case $flag in
3024 -Wno-switch) echo -Wno-switch-enum ;;
3025 -Wno-format-zero-length) ;;
3026 -Wdisabled-optimization) ;;
3027 -Wno-pointer-sign) echo -Wno-other ;;
3028 *) echo $flag ;;
3029 esac
3030 done
3031 }
3032
3033 msvc_common_flags(){
3034 for flag; do
3035 case $flag in
3036 # In addition to specifying certain flags under the compiler
3037 # specific filters, they must be specified here as well or else the
3038 # generic catch all at the bottom will print the original flag.
3039 -Wall) ;;
3040 -std=c99) ;;
3041 # Common flags
3042 -fomit-frame-pointer) ;;
3043 -g) echo -Z7 ;;
3044 -fno-math-errno) ;;
3045 -fno-common) ;;
3046 -fno-signed-zeros) ;;
3047 -fPIC) ;;
3048 -mthumb) ;;
3049 -march=*) ;;
3050 -lz) echo zlib.lib ;;
3051 -lavicap32) echo vfw32.lib user32.lib ;;
3052 -lx264) echo libx264.lib ;;
3053 -l*) echo ${flag#-l}.lib ;;
3054 -L*) echo -libpath:${flag#-L} ;;
3055 *) echo $flag ;;
3056 esac
3057 done
3058 }
3059
3060 msvc_flags(){
3061 msvc_common_flags "$@"
3062 for flag; do
3063 case $flag in
3064 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3065 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3066 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3067 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3068 esac
3069 done
3070 }
3071
3072 icl_flags(){
3073 msvc_common_flags "$@"
3074 for flag; do
3075 case $flag in
3076 # Despite what Intel's documentation says -Wall, which is supported
3077 # on Windows, does enable remarks so disable them here.
3078 -Wall) echo $flag -Qdiag-disable:remark ;;
3079 -std=c99) echo -Qstd=c99 ;;
3080 esac
3081 done
3082 }
3083
3084 pgi_flags(){
3085 for flag; do
3086 case $flag in
3087 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3088 -fomit-frame-pointer) echo -Mnoframe ;;
3089 -g) echo -gopt ;;
3090 *) echo $flag ;;
3091 esac
3092 done
3093 }
3094
3095 suncc_flags(){
3096 for flag; do
3097 case $flag in
3098 -march=*|-mcpu=*)
3099 case "${flag#*=}" in
3100 native) echo -xtarget=native ;;
3101 v9|niagara) echo -xarch=sparc ;;
3102 ultrasparc) echo -xarch=sparcvis ;;
3103 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3104 i586|pentium) echo -xchip=pentium ;;
3105 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3106 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3107 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3108 pentium4*) echo -xtarget=pentium4 ;;
3109 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3110 *-sse3) echo -xarch=sse3 ;;
3111 core2) echo -xarch=ssse3 -xchip=core2 ;;
3112 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3113 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3114 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3115 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3116 k8|opteron|athlon64|athlon-fx)
3117 echo -xarch=sse2a ;;
3118 athlon*) echo -xarch=pentium_proa ;;
3119 esac
3120 ;;
3121 -std=c99) echo -xc99 ;;
3122 -fomit-frame-pointer) echo -xregs=frameptr ;;
3123 -fPIC) echo -KPIC -xcode=pic32 ;;
3124 -W*,*) echo $flag ;;
3125 -f*-*|-W*|-mimpure-text) ;;
3126 -shared) echo -G ;;
3127 *) echo $flag ;;
3128 esac
3129 done
3130 }
3131
3132 tms470_flags(){
3133 for flag; do
3134 case $flag in
3135 -march=*|-mcpu=*)
3136 case "${flag#*=}" in
3137 armv7-a|cortex-a*) echo -mv=7a8 ;;
3138 armv7-r|cortex-r*) echo -mv=7r4 ;;
3139 armv7-m|cortex-m*) echo -mv=7m3 ;;
3140 armv6*|arm11*) echo -mv=6 ;;
3141 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3142 echo -mv=5e ;;
3143 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3144 esac
3145 ;;
3146 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3147 -mfpu=vfp) echo --float_support=vfpv2 ;;
3148 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3149 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3150 -msoft-float) echo --float_support=vfplib ;;
3151 -O[0-3]|-mf=*) echo $flag ;;
3152 -g) echo -g -mn ;;
3153 -pds=*) echo $flag ;;
3154 -D*|-I*) echo $flag ;;
3155 --gcc|--abi=*) echo $flag ;;
3156 -me) echo $flag ;;
3157 esac
3158 done
3159 }
3160
3161 probe_cc(){
3162 pfx=$1
3163 _cc=$2
3164
3165 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3166 unset _ld_o _ldflags _ld_lib _ld_path
3167 unset _depflags _DEPCMD _DEPFLAGS
3168 _flags_filter=echo
3169
3170 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3171 _type=llvm_gcc
3172 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3173 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3174 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3175 _cflags_speed='-O3'
3176 _cflags_size='-Os'
3177 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3178 _type=gcc
3179 gcc_version=$($_cc --version | head -n1)
3180 gcc_basever=$($_cc -dumpversion)
3181 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3182 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3183 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3184 if ! $_cc -dumpversion | grep -q '^2\.'; then
3185 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3186 fi
3187 _cflags_speed='-O3'
3188 _cflags_size='-Os'
3189 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3190 _type=icc
3191 _ident=$($_cc --version | head -n1)
3192 _depflags='-MMD'
3193 _cflags_speed='-O3'
3194 _cflags_size='-Os'
3195 _cflags_noopt='-O1'
3196 elif $_cc -v 2>&1 | grep -q xlc; then
3197 _type=xlc
3198 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3199 _cflags_speed='-O5'
3200 _cflags_size='-O5 -qcompact'
3201 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3202 _type=ccc
3203 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3204 _DEPFLAGS='-M'
3205 _cflags_speed='-fast'
3206 _cflags_size='-O1'
3207 _flags_filter=ccc_flags
3208 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3209 test -d "$sysroot" || die "No valid sysroot specified."
3210 _type=armcc
3211 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3212 armcc_conf="$PWD/armcc.conf"
3213 $_cc --arm_linux_configure \
3214 --arm_linux_config_file="$armcc_conf" \
3215 --configure_sysroot="$sysroot" \
3216 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3217 die "Error creating armcc configuration file."
3218 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3219 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3220 as_default="${cross_prefix}gcc"
3221 _depflags='-MMD'
3222 _cflags_speed='-O3'
3223 _cflags_size='-Os'
3224 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3225 _type=tms470
3226 _ident=$($_cc -version | head -n1 | tr -s ' ')
3227 _flags='--gcc --abi=eabi -me'
3228 _cc_e='-ppl -fe=$@'
3229 _cc_o='-fe=$@'
3230 _depflags='-ppa -ppd=$(@:.o=.d)'
3231 _cflags_speed='-O3 -mf=5'
3232 _cflags_size='-O3 -mf=2'
3233 _flags_filter=tms470_flags
3234 elif $_cc -v 2>&1 | grep -q clang; then
3235 _type=clang
3236 _ident=$($_cc --version 2>/dev/null | head -n1)
3237 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3238 _cflags_speed='-O3'
3239 _cflags_size='-Os'
3240 elif $_cc -V 2>&1 | grep -q Sun; then
3241 _type=suncc
3242 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3243 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3244 _DEPFLAGS='-xM1 -xc99'
3245 _ldflags='-std=c99'
3246 _cflags_speed='-O5'
3247 _cflags_size='-O5 -xspace'
3248 _flags_filter=suncc_flags
3249 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3250 _type=pathscale
3251 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3252 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3253 _cflags_speed='-O2'
3254 _cflags_size='-Os'
3255 _flags_filter='filter_out -Wdisabled-optimization'
3256 elif $_cc -v 2>&1 | grep -q Open64; then
3257 _type=open64
3258 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3259 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3260 _cflags_speed='-O2'
3261 _cflags_size='-Os'
3262 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3263 elif $_cc -V 2>&1 | grep -q Portland; then
3264 _type=pgi
3265 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3266 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3267 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3268 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3269 _cflags_noopt="-O1"
3270 _flags_filter=pgi_flags
3271 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3272 _type=armasm
3273 _ident=$($_cc | head -n1)
3274 # 4509: "This form of conditional instruction is deprecated"
3275 _flags="-nologo -ignore 4509"
3276 _flags_filter=armasm_flags
3277 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3278 _type=msvc
3279 _ident=$($_cc 2>&1 | head -n1)
3280 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3281 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3282 _cflags_speed="-O2"
3283 _cflags_size="-O1"
3284 if $_cc -nologo- 2>&1 | grep -q Linker; then
3285 _ld_o='-out:$@'
3286 else
3287 _ld_o='-Fe$@'
3288 fi
3289 _cc_o='-Fo$@'
3290 _cc_e='-P -Fi$@'
3291 _flags_filter=msvc_flags
3292 _ld_lib='lib%.a'
3293 _ld_path='-libpath:'
3294 _flags='-nologo'
3295 elif $_cc 2>&1 | grep -q Intel; then
3296 _type=icl
3297 _ident=$($_cc 2>&1 | head -n1)
3298 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3299 # Not only is O3 broken on 13.x+ but it is slower on all previous
3300 # versions (tested) as well.
3301 _cflags_speed="-O2"
3302 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3303 if $_cc 2>&1 | grep -q Linker; then
3304 _ld_o='-out:$@'
3305 else
3306 _ld_o='-Fe$@'
3307 fi
3308 _cc_o='-Fo$@'
3309 _cc_e='-P'
3310 _flags_filter=icl_flags
3311 _ld_lib='lib%.a'
3312 _ld_path='-libpath:'
3313 # -Qdiag-error to make icl error when seeing certain unknown arguments
3314 _flags='-nologo -Qdiag-error:4044,10157'
3315 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3316 # with MSVC which enables it by default.
3317 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3318 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3319 # lld can emulate multiple different linkers; in ms link.exe mode,
3320 # the -? parameter gives the help output which contains an identifyable
3321 # string, while it gives an error in other modes.
3322 _type=lld-link
3323 # The link.exe mode doesn't have a switch for getting the version,
3324 # but we can force it back to gnu mode and get the version from there.
3325 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3326 _ld_o='-out:$@'
3327 _flags_filter=msvc_flags
3328 _ld_lib='lib%.a'
3329 _ld_path='-libpath:'
3330 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3331 _type=cparser
3332 _ident=$($_cc --version | head -n1)
3333 _depflags='-MMD'
3334 _cflags_speed='-O4'
3335 _cflags_size='-O2'
3336 _flags_filter=cparser_flags
3337 fi
3338
3339 eval ${pfx}_type=\$_type
3340 eval ${pfx}_ident=\$_ident
3341 }
3342
3343 set_ccvars(){
3344 eval ${1}_C=\${_cc_c-\${${1}_C}}
3345 eval ${1}_E=\${_cc_e-\${${1}_E}}
3346 eval ${1}_O=\${_cc_o-\${${1}_O}}
3347
3348 if [ -n "$_depflags" ]; then
3349 eval ${1}_DEPFLAGS=\$_depflags
3350 else
3351 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3352 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3353 eval DEP${1}FLAGS=\$_flags
3354 fi
3355 }
3356
3357 probe_cc cc "$cc"
3358 cflags_filter=$_flags_filter
3359 cflags_speed=$_cflags_speed
3360 cflags_size=$_cflags_size
3361 cflags_noopt=$_cflags_noopt
3362 add_cflags $_flags $_cflags
3363 cc_ldflags=$_ldflags
3364 set_ccvars CC
3365
3366 probe_cc hostcc "$host_cc"
3367 host_cflags_filter=$_flags_filter
3368 add_host_cflags $_flags $_cflags
3369 set_ccvars HOSTCC
3370
3371 test -n "$cc_type" && enable $cc_type ||
3372 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3373
3374 : ${as_default:=$cc}
3375 : ${objcc_default:=$cc}
3376 : ${dep_cc_default:=$cc}
3377 : ${ld_default:=$cc}
3378 : ${host_ld_default:=$host_cc}
3379 set_default ar as objcc dep_cc ld host_ld
3380
3381 probe_cc as "$as"
3382 asflags_filter=$_flags_filter
3383 add_asflags $_flags $_cflags
3384 set_ccvars AS
3385
3386 probe_cc objcc "$objcc"
3387 objcflags_filter=$_flags_filter
3388 add_objcflags $_flags $_cflags
3389 set_ccvars OBJC
3390
3391 probe_cc ld "$ld"
3392 ldflags_filter=$_flags_filter
3393 add_ldflags $_flags $_ldflags
3394 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3395 LD_O=${_ld_o-$LD_O}
3396 LD_LIB=${_ld_lib-$LD_LIB}
3397 LD_PATH=${_ld_path-$LD_PATH}
3398
3399 probe_cc hostld "$host_ld"
3400 host_ldflags_filter=$_flags_filter
3401 add_host_ldflags $_flags $_ldflags
3402 HOSTLD_O=${_ld_o-$HOSTLD_O}
3403
3404 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3405 probe_cc depcc "$dep_cc"
3406 CCDEP=${_DEPCMD:-$DEPCMD}
3407 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3408 DEPCCFLAGS=$_flags
3409 fi
3410
3411 if $ar 2>&1 | grep -q Microsoft; then
3412 arflags="-nologo"
3413 ar_o='-out:$@'
3414 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3415 arflags="rq"
3416 ar_o='$@'
3417 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3418 arflags='-Xany -r -c'
3419 ar_o='$@'
3420 else
3421 arflags="rc"
3422 ar_o='$@'
3423 fi
3424
3425 add_cflags $extra_cflags
3426 add_objcflags $extra_objcflags
3427 add_asflags $extra_cflags
3428
3429 if test -n "$sysroot"; then
3430 case "$cc_type" in
3431 gcc|llvm_gcc|clang)
3432 add_cppflags --sysroot="$sysroot"
3433 add_ldflags --sysroot="$sysroot"
3434 ;;
3435 tms470)
3436 add_cppflags -I"$sysinclude"
3437 add_ldflags --sysroot="$sysroot"
3438 ;;
3439 esac
3440 fi
3441
3442 if test "$cpu" = host; then
3443 enabled cross_compile &&
3444 die "--cpu=host makes no sense when cross-compiling."
3445
3446 case "$cc_type" in
3447 gcc|llvm_gcc)
3448 check_native(){
3449 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3450 sed -n "/cc1.*$1=/{
3451 s/.*$1=\\([^ ]*\\).*/\\1/
3452 p
3453 q
3454 }" $TMPE
3455 }
3456 cpu=$(check_native -march || check_native -mcpu)
3457 ;;
3458 esac
3459
3460 test "${cpu:-host}" = host &&
3461 die "--cpu=host not supported with compiler $cc"
3462 fi
3463
3464 # Deal with common $arch aliases
3465 case "$arch" in
3466 aarch64|arm64)
3467 arch="aarch64"
3468 ;;
3469 arm*)
3470 arch="arm"
3471 ;;
3472 mips*|IP*)
3473 case "$arch" in
3474 *el)
3475 add_cppflags -EL
3476 add_ldflags -EL
3477 ;;
3478 *eb)
3479 add_cppflags -EB
3480 add_ldflags -EB
3481 ;;
3482 esac
3483 arch="mips"
3484 ;;
3485 parisc*|hppa*)
3486 arch="parisc"
3487 ;;
3488 "Power Macintosh"|ppc*|powerpc*)
3489 arch="ppc"
3490 ;;
3491 s390|s390x)
3492 arch="s390"
3493 ;;
3494 sh4|sh)
3495 arch="sh4"
3496 ;;
3497 sun4u|sparc*)
3498 arch="sparc"
3499 ;;
3500 tilegx|tile-gx)
3501 arch="tilegx"
3502 ;;
3503 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3504 arch="x86"
3505 ;;
3506 esac
3507
3508 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3509 enable $arch
3510
3511 # Add processor-specific flags
3512 if enabled aarch64; then
3513
3514 case $cpu in
3515 armv*)
3516 cpuflags="-march=$cpu"
3517 ;;
3518 *)
3519 cpuflags="-mcpu=$cpu"
3520 ;;
3521 esac
3522
3523 elif enabled alpha; then
3524
3525 cpuflags="-mcpu=$cpu"
3526
3527 elif enabled arm; then
3528
3529 check_arm_arch() {
3530 check_cpp_condition stddef.h \
3531 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3532 $cpuflags
3533 }
3534
3535 probe_arm_arch() {
3536 if check_arm_arch 4; then echo armv4
3537 elif check_arm_arch 4T; then echo armv4t
3538 elif check_arm_arch 5; then echo armv5
3539 elif check_arm_arch 5E; then echo armv5e
3540 elif check_arm_arch 5T; then echo armv5t
3541 elif check_arm_arch 5TE; then echo armv5te
3542 elif check_arm_arch 5TEJ; then echo armv5te
3543 elif check_arm_arch 6; then echo armv6
3544 elif check_arm_arch 6J; then echo armv6j
3545 elif check_arm_arch 6K; then echo armv6k
3546 elif check_arm_arch 6Z; then echo armv6z
3547 elif check_arm_arch 6ZK; then echo armv6zk
3548 elif check_arm_arch 6T2; then echo armv6t2
3549 elif check_arm_arch 7; then echo armv7
3550 elif check_arm_arch 7A 7_A; then echo armv7-a
3551 elif check_arm_arch 7S; then echo armv7-a
3552 elif check_arm_arch 7R 7_R; then echo armv7-r
3553 elif check_arm_arch 7M 7_M; then echo armv7-m
3554 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3555 elif check_arm_arch 8A 8_A; then echo armv8-a
3556 fi
3557 }
3558
3559 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3560
3561 case $cpu in
3562 armv*)
3563 cpuflags="-march=$cpu"
3564 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3565 ;;
3566 *)
3567 cpuflags="-mcpu=$cpu"
3568 case $cpu in
3569 cortex-a*) subarch=armv7a ;;
3570 cortex-r*) subarch=armv7r ;;
3571 cortex-m*) enable thumb; subarch=armv7m ;;
3572 arm11*) subarch=armv6 ;;
3573 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3574 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3575 *) subarch=$(probe_arm_arch) ;;
3576 esac
3577 ;;
3578 esac
3579
3580 case "$subarch" in
3581 armv5t*) enable fast_clz ;;
3582 armv[6-8]*) enable fast_clz fast_unaligned ;;
3583 esac
3584
3585 elif enabled avr32; then
3586
3587 case $cpu in
3588 ap7[02]0[0-2])
3589 subarch="avr32_ap"
3590 cpuflags="-mpart=$cpu"
3591 ;;
3592 ap)
3593 subarch="avr32_ap"
3594 cpuflags="-march=$cpu"
3595 ;;
3596 uc3[ab]*)
3597 subarch="avr32_uc"
3598 cpuflags="-mcpu=$cpu"
3599 ;;
3600 uc)
3601 subarch="avr32_uc"
3602 cpuflags="-march=$cpu"
3603 ;;
3604 esac
3605
3606 elif enabled bfin; then
3607
3608 cpuflags="-mcpu=$cpu"
3609
3610 elif enabled mips; then
3611
3612 cpuflags="-march=$cpu"
3613
3614 elif enabled ppc; then
3615
3616 disable ldbrx
3617
3618 case $(tolower $cpu) in
3619 601|ppc601|powerpc601)
3620 cpuflags="-mcpu=601"
3621 disable altivec
3622 ;;
3623 603*|ppc603*|powerpc603*)
3624 cpuflags="-mcpu=603"
3625 disable altivec
3626 ;;
3627 604*|ppc604*|powerpc604*)
3628 cpuflags="-mcpu=604"
3629 disable altivec
3630 ;;
3631 g3|75*|ppc75*|powerpc75*)
3632 cpuflags="-mcpu=750"
3633 disable altivec
3634 ;;
3635 g4|745*|ppc745*|powerpc745*)
3636 cpuflags="-mcpu=7450"
3637 disable vsx
3638 ;;
3639 74*|ppc74*|powerpc74*)
3640 cpuflags="-mcpu=7400"
3641 disable vsx
3642 ;;
3643 g5|970|ppc970|powerpc970)
3644 cpuflags="-mcpu=970"
3645 disable vsx
3646 ;;
3647 power[3-6]*)
3648 cpuflags="-mcpu=$cpu"
3649 disable vsx
3650 ;;
3651 power[7-8]*)
3652 cpuflags="-mcpu=$cpu"
3653 enable ldbrx
3654 ;;
3655 cell)
3656 cpuflags="-mcpu=cell"
3657 enable ldbrx
3658 disable vsx
3659 ;;
3660 e500mc)
3661 cpuflags="-mcpu=e500mc"
3662 disable altivec
3663 ;;
3664 e500v2)
3665 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3666 disable altivec
3667 disable dcbzl
3668 ;;
3669 e500)
3670 cpuflags="-mcpu=8540 -mhard-float"
3671 disable altivec
3672 disable dcbzl
3673 ;;
3674 esac
3675
3676 elif enabled sparc; then
3677
3678 case $cpu in
3679 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3680 cpuflags="-mcpu=$cpu"
3681 ;;
3682 ultrasparc*|niagara[234])
3683 cpuflags="-mcpu=$cpu"
3684 ;;
3685 esac
3686
3687 elif enabled x86; then
3688
3689 case $cpu in
3690 i[345]86|pentium)
3691 cpuflags="-march=$cpu"
3692 disable i686
3693 disable mmx
3694 ;;
3695 # targets that do NOT support nopl and conditional mov (cmov)
3696 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3697 cpuflags="-march=$cpu"
3698 disable i686
3699 ;;
3700 # targets that do support nopl and conditional mov (cmov)
3701 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3702 cpuflags="-march=$cpu"
3703 enable i686
3704 enable fast_cmov
3705 ;;
3706 # targets that do support conditional mov but on which it's slow
3707 pentium4|pentium4m|prescott|nocona)
3708 cpuflags="-march=$cpu"
3709 enable i686
3710 disable fast_cmov
3711 ;;
3712 esac
3713
3714 fi
3715
3716 if [ "$cpu" != generic ]; then
3717 add_cflags $cpuflags
3718 add_asflags $cpuflags
3719 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3720 fi
3721
3722 # compiler sanity check
3723 check_exec <<EOF
3724 int main(void){ return 0; }
3725 EOF
3726 if test "$?" != 0; then
3727 echo "$cc is unable to create an executable file."
3728 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3729 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3730 echo "Only do this if you know what cross compiling means."
3731 fi
3732 die "C compiler test failed."
3733 fi
3734
3735 add_cppflags -D_ISOC99_SOURCE
3736
3737 # some compilers silently accept -std=c11, so we also need to check that the
3738 # version macro is defined properly
3739 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3740 add_cflags -std=c11
3741 else
3742 check_cflags -std=c99
3743 fi
3744
3745 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3746 #include <stdlib.h>
3747 EOF
3748 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3749 #include <stdlib.h>
3750 EOF
3751
3752 add_host_cppflags -D_ISOC99_SOURCE
3753 check_host_cflags -std=c99
3754 check_host_cflags -Wall
3755 check_host_cflags -O3
3756
3757 check_64bit(){
3758 arch32=$1
3759 arch64=$2
3760 expr=$3
3761 check_code cc "" "int test[2*($expr) - 1]" &&
3762 subarch=$arch64 || subarch=$arch32
3763 }
3764
3765 case "$arch" in
3766 aarch64|alpha|ia64)
3767 spic=$shared
3768 ;;
3769 mips)
3770 check_64bit mips mips64 '_MIPS_SIM > 1'
3771 spic=$shared
3772 ;;
3773 parisc)
3774 check_64bit parisc parisc64 'sizeof(void *) > 4'
3775 spic=$shared
3776 ;;
3777 ppc)
3778 check_64bit ppc ppc64 'sizeof(void *) > 4'
3779 spic=$shared
3780 ;;
3781 s390)
3782 check_64bit s390 s390x 'sizeof(void *) > 4'
3783 spic=$shared
3784 ;;
3785 sparc)
3786 check_64bit sparc sparc64 'sizeof(void *) > 4'
3787 spic=$shared
3788 ;;
3789 x86)
3790 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3791 if test "$subarch" = "x86_64"; then
3792 spic=$shared
3793 fi
3794 ;;
3795 esac
3796
3797 enable $subarch
3798 enabled spic && enable_weak pic
3799
3800 # OS specific
3801 case $target_os in
3802 aix)
3803 SHFLAGS=-shared
3804 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3805 enabled shared && add_ldflags -Wl,-brtl
3806 ;;
3807 android)
3808 disable symver
3809 enable section_data_rel_ro
3810 SLIB_INSTALL_NAME='$(SLIBNAME)'
3811 SLIB_INSTALL_LINKS=
3812 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3813 ;;
3814 haiku)
3815 prefix_default="/boot/common"
3816 network_extralibs="-lnetwork"
3817 host_libs=
3818 ;;
3819 sunos)
3820 SHFLAGS='-shared -Wl,-h,$$(@F)'
3821 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3822 network_extralibs="-lsocket -lnsl"
3823 # When using suncc to build, the Solaris linker will mark
3824 # an executable with each instruction set encountered by
3825 # the Solaris assembler. As our libraries contain their own
3826 # guards for processor-specific code, instead suppress
3827 # generation of the HWCAPS ELF section on Solaris x86 only.
3828 enabled_all suncc x86 &&
3829 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3830 add_ldflags -Wl,-M,mapfile
3831 nm_default='nm -P -g'
3832 version_script='-M'
3833 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3834 ;;
3835 netbsd)
3836 disable symver
3837 oss_indev_extralibs="-lossaudio"
3838 oss_outdev_extralibs="-lossaudio"
3839 ;;
3840 openbsd|bitrig)
3841 disable symver
3842 SHFLAGS='-shared'
3843 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3844 SLIB_INSTALL_LINKS=
3845 oss_indev_extralibs="-lossaudio"
3846 oss_outdev_extralibs="-lossaudio"
3847 ;;
3848 dragonfly)
3849 disable symver
3850 ;;
3851 freebsd)
3852 ;;
3853 bsd/os)
3854 add_extralibs -lpoll -lgnugetopt
3855 ;;
3856 darwin)
3857 enabled ppc && add_asflags -force_cpusubtype_ALL
3858 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3859 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3860 add_ldflags -Wl,-dynamic,-search_paths_first
3861 SLIBSUF=".dylib"
3862 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3863 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3864 objformat="macho"
3865 enabled x86_64 && objformat="macho64"
3866 enabled_any pic shared ||
3867 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3868 check_header dispatch/dispatch.h &&
3869 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3870 ;;
3871 msys*)
3872 die "Native MSYS builds are discouraged, please use the MINGW environment."
3873 ;;
3874 mingw32*|mingw64*)
3875 if test $target_os = "mingw32ce"; then
3876 disable network
3877 else
3878 target_os=mingw32
3879 fi
3880 LIBTARGET=i386
3881 if enabled x86_64; then
3882 LIBTARGET="i386:x86-64"
3883 elif enabled arm; then
3884 LIBTARGET=arm-wince
3885 fi
3886 check_ldflags -Wl,--nxcompat
3887 check_ldflags -Wl,--dynamicbase
3888 shlibdir_default="$bindir_default"
3889 SLIBPREF=""
3890 SLIBSUF=".dll"
3891 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3892 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3893 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3894 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3895 SLIB_INSTALL_LINKS=
3896 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3897 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3898 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3899 objformat="win32"
3900 dlltool="${cross_prefix}dlltool"
3901 ranlib=:
3902 enable dos_paths
3903 ;;
3904 win32|win64)
3905 disable symver
3906 if enabled shared; then
3907 # Link to the import library instead of the normal static library
3908 # for shared libs.
3909 LD_LIB='%.lib'
3910 # Cannot build both shared and static libs with MSVC or icl.
3911 disable static
3912 fi
3913 shlibdir_default="$bindir_default"
3914 SLIBPREF=""
3915 SLIBSUF=".dll"
3916 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3917 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3918 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3919 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3920 SLIB_INSTALL_LINKS=
3921 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3922 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3923 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3924 objformat="win32"
3925 ranlib=:
3926 enable dos_paths
3927 ;;
3928 cygwin*)
3929 target_os=cygwin
3930 shlibdir_default="$bindir_default"
3931 SLIBPREF="cyg"
3932 SLIBSUF=".dll"
3933 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3934 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3935 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3936 SLIB_INSTALL_LINKS=
3937 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3938 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3939 objformat="win32"
3940 enable dos_paths
3941 ;;
3942 *-dos|freedos|opendos)
3943 network_extralibs="-lsocket"
3944 objformat="coff"
3945 enable dos_paths
3946 add_cppflags -U__STRICT_ANSI__
3947 ;;
3948 linux)
3949 enable dv1394
3950 enable section_data_rel_ro
3951 ;;
3952 irix*)
3953 target_os=irix
3954 ranlib="echo ignoring ranlib"
3955 ;;
3956 os/2*)
3957 ln_s="cp -f"
3958 objformat="aout"
3959 add_cppflags -D_GNU_SOURCE
3960 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3961 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3962 LIBSUF="_s.a"
3963 SLIBPREF=""
3964 SLIBSUF=".dll"
3965 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3966 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3967 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3968 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3969 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3970 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3971 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3972 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3973 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3974 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3975 enable dos_paths
3976 ;;
3977 gnu/kfreebsd)
3978 add_cppflags -D_BSD_SOURCE
3979 ;;
3980 gnu)
3981 ;;
3982 qnx)
3983 add_cppflags -D_QNX_SOURCE
3984 network_extralibs="-lsocket"
3985 ;;
3986 symbian)
3987 SLIBSUF=".dll"
3988 enable dos_paths
3989 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3990 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3991 add_ldflags -Wl,--target1-abs,--no-undefined \
3992 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3993 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3994 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3995 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3996 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3997 ;;
3998 osf1)
3999 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4000 ;;
4001 minix)
4002 ;;
4003 none)
4004 ;;
4005 *)
4006 die "Unknown OS '$target_os'."
4007 ;;
4008 esac
4009
4010 # determine libc flavour
4011
4012 probe_libc(){
4013 pfx=$1
4014 pfx_no_=${pfx%_}
4015 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4016 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4017 eval ${pfx}libc_type=uclibc
4018 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4019 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4020 eval ${pfx}libc_type=glibc
4021 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4022 # MinGW headers can be installed on Cygwin, so check for newlib first.
4023 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4024 eval ${pfx}libc_type=newlib
4025 add_${pfx}cppflags -U__STRICT_ANSI__
4026 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4027 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4028 eval ${pfx}libc_type=mingw64
4029 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4030 eval test \$${pfx_no_}cc_type = "gcc" &&
4031 add_${pfx}cppflags -D__printf__=__gnu_printf__
4032 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4033 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4034 eval ${pfx}libc_type=mingw32
4035 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4036 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4037 die "ERROR: MinGW32 runtime version must be >= 3.15."
4038 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4039 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4040 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4041 eval test \$${pfx_no_}cc_type = "gcc" &&
4042 add_${pfx}cppflags -D__printf__=__gnu_printf__
4043 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4044 eval ${pfx}libc_type=msvcrt
4045 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4046 if [ "$pfx" = host_ ]; then
4047 add_host_cppflags -Dsnprintf=_snprintf
4048 else
4049 add_compat strtod.o strtod=avpriv_strtod
4050 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4051 _snprintf=avpriv_snprintf \
4052 vsnprintf=avpriv_vsnprintf
4053 fi
4054 fi
4055 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4056 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4057 # 0x601 by default unless something else is set by the user.
4058 # This can easily lead to us detecting functions only present
4059 # in such new versions and producing binaries requiring windows 7.0.
4060 # Therefore explicitly set the default to XP unless the user has
4061 # set something else on the command line.
4062 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4063 # family. For these cases, configure is free to use any functions
4064 # found in the SDK headers by default. (Alternatively, we could force
4065 # _WIN32_WINNT to 0x0602 in that case.)
4066 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4067 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4068 #ifdef WINAPI_FAMILY
4069 #include <winapifamily.h>
4070 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4071 #error not desktop
4072 #endif
4073 #endif
4074 EOF
4075 if [ "$pfx" = "" ]; then
4076 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4077 fi
4078 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4079 eval ${pfx}libc_type=klibc
4080 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4081 eval ${pfx}libc_type=bionic
4082 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4083 eval ${pfx}libc_type=solaris
4084 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4085 else
4086 eval ${pfx}libc_type=default
4087 add_${pfx}cppflags -D_DEFAULT_SOURCE
4088 fi
4089 }
4090
4091 probe_libc
4092 test -n "$libc_type" && enable libc_$libc_type
4093 probe_libc host_
4094 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4095
4096 case $libc_type in
4097 bionic)
4098 add_compat strtod.o strtod=avpriv_strtod
4099 ;;
4100 esac
4101
4102 # hacks for compiler/libc/os combinations
4103
4104 if enabled_all tms470 libc_glibc; then
4105 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4106 add_cppflags -D__USER_LABEL_PREFIX__=
4107 add_cppflags -D__builtin_memset=memset
4108 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4109 add_cflags -pds=48 # incompatible redefinition of macro
4110 fi
4111
4112 if enabled_all ccc libc_glibc; then
4113 add_ldflags -Wl,-z,now # calls to libots crash without this
4114 fi
4115
4116 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4117 add_cppflags '-I\$(SRC_PATH)/compat/float'
4118
4119 esc(){
4120 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4121 }
4122
4123 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4124
4125 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4126
4127 set_default $PATHS_LIST
4128 set_default nm
4129
4130 # we need to build at least one lib type
4131 if ! enabled_any static shared; then
4132 cat <<EOF
4133 At least one library type must be built.
4134 Specify --enable-static to build the static libraries or --enable-shared to
4135 build the shared libraries as well. To only build the shared libraries specify
4136 --disable-static in addition to --enable-shared.
4137 EOF
4138 exit 1
4139 fi
4140
4141 disabled optimizations || check_cflags -fomit-frame-pointer
4142
4143 enable_weak_pic() {
4144 disabled pic && return
4145 enable pic
4146 add_cppflags -DPIC
4147 case "$target_os" in
4148 mingw*|cygwin*)
4149 ;;
4150 *)
4151 add_cflags -fPIC
4152 ;;
4153 esac
4154 add_asflags -fPIC
4155 }
4156
4157 enabled pic && enable_weak_pic
4158
4159 check_cc <<EOF || die "Symbol mangling check failed."
4160 int ff_extern;
4161 EOF
4162 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4163 extern_prefix=${sym%%ff_extern*}
4164
4165 check_cc <<EOF && enable_weak inline_asm
4166 void foo(void) { __asm__ volatile ("" ::); }
4167 EOF
4168
4169 _restrict=
4170 for restrict_keyword in restrict __restrict__ __restrict; do
4171 check_cc <<EOF && _restrict=$restrict_keyword && break
4172 void foo(char * $restrict_keyword p);
4173 EOF
4174 done
4175
4176 check_cc <<EOF && enable pragma_deprecated
4177 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4178 EOF
4179
4180 check_cc <<EOF && enable attribute_packed
4181 struct { int x; } __attribute__((packed)) x;
4182 EOF
4183
4184 check_cc <<EOF && enable attribute_may_alias
4185 union { int x; } __attribute__((may_alias)) x;
4186 EOF
4187
4188 check_cc <<EOF || die "endian test failed"
4189 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4190 EOF
4191 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4192
4193 check_gas() {
4194 log "check_gas using '$as' as AS"
4195 # :vararg is used on aarch64, arm and ppc altivec
4196 check_as <<EOF || return 1
4197 .macro m n, y:vararg=0
4198 \n: .int \y
4199 .endm
4200 m x
4201 EOF
4202 # .altmacro is only used in arm asm
4203 ! enabled arm || check_as <<EOF || return 1
4204 .altmacro
4205 EOF
4206 enable gnu_as
4207 return 0
4208 }
4209
4210 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4211 nogas=:
4212 enabled_any arm aarch64 && nogas=die
4213 enabled_all ppc altivec && nogas=warn
4214 as_noop=-v
4215
4216 case $as_type in
4217 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4218 gcc) gaspp_as_type=gas ;;
4219 *) gaspp_as_type=$as_type ;;
4220 esac
4221
4222 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4223
4224 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4225 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4226
4227 if ! check_gas ; then
4228 as=${gas:=$as}
4229 check_gas || \
4230 $nogas "GNU assembler not found, install/update gas-preprocessor"
4231 fi
4232
4233 check_as <<EOF && enable as_func
4234 .func test
4235 .endfunc
4236 EOF
4237 fi
4238
4239 check_inline_asm inline_asm_labels '"1:\n"'
4240
4241 if enabled aarch64; then
4242 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4243 # internal assembler in clang 3.3 does not support this instruction
4244 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4245 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4246
4247 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4248
4249 elif enabled alpha; then
4250
4251 check_cflags -mieee
4252
4253 elif enabled arm; then
4254
4255 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4256 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4257 enabled thumb && check_cflags -mthumb || check_cflags -marm
4258
4259 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4260 enable vfp_args
4261 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4262 enable vfp_args
4263 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4264 case "${cross_prefix:-$cc}" in
4265 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4266 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4267 __asm__ (".eabi_attribute 28, 1");
4268 int main(void) { return 0; }
4269 EOF
4270 esac
4271 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4272 fi
4273
4274 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4275 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4276 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4277 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4278 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4279 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4280
4281 [ $target_os = linux ] || [ $target_os = android ] ||
4282 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4283 $ARCH_EXT_LIST_ARM
4284
4285 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4286
4287 check_as <<EOF && enable as_dn_directive
4288 ra .dn d0.i16
4289 .unreq ra
4290 EOF
4291 check_as <<EOF && enable as_fpu_directive
4292 .fpu neon
4293 EOF
4294
4295 # llvm's integrated assembler supports .object_arch from llvm 3.5
4296 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4297 .object_arch armv4
4298 EOF
4299
4300 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4301
4302 elif enabled mips; then
4303
4304 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4305
4306 # make sure that only an instruction set is enabled
4307 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4308
4309 if enabled mips64; then
4310 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4311 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4312 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4313 else
4314 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4315 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4316 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4317 fi
4318
4319 elif enabled parisc; then
4320
4321 if enabled gcc; then
4322 case $($cc -dumpversion) in
4323 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4324 esac
4325 fi
4326
4327 elif enabled ppc; then
4328
4329 enable local_aligned_8 local_aligned_16 local_aligned_32
4330
4331 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4332 check_inline_asm ibm_asm '"add 0, 0, 0"'
4333 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4334 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4335
4336 # AltiVec flags: The FSF version of GCC differs from the Apple version
4337 if enabled altivec; then
4338 check_cflags -maltivec -mabi=altivec &&
4339 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4340 check_cflags -faltivec
4341
4342 # check if our compiler supports Motorola AltiVec C API
4343 check_cc <<EOF || disable altivec
4344 $inc_altivec_h
4345 int main(void) {
4346 vector signed int v1 = (vector signed int) { 0 };
4347 vector signed int v2 = (vector signed int) { 1 };
4348 v1 = vec_add(v1, v2);
4349 return 0;
4350 }
4351 EOF
4352
4353 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4354 fi
4355
4356 if enabled vsx; then
4357 check_cflags -mvsx &&
4358 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4359 fi
4360
4361 if enabled power8; then
4362 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4363 fi
4364
4365 elif enabled x86; then
4366
4367 check_builtin rdtsc intrin.h "__rdtsc()"
4368 check_builtin mm_empty mmintrin.h "_mm_empty()"
4369
4370 enable local_aligned_8 local_aligned_16 local_aligned_32
4371
4372 # check whether EBP is available on x86
4373 # As 'i' is stored on the stack, this program will crash
4374 # if the base pointer is used to access it because the