build: Generate pkg-config files from Make and not from configure
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$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 name="$1"
1010 headers="$2"
1011 funcs="$3"
1012 shift 3
1013 disable $name
1014 check_func_headers "$headers" "$funcs" "$@" &&
1015 enable $name && add_extralibs "$@"
1016 }
1017
1018 check_pkg_config(){
1019 log check_pkg_config "$@"
1020 pkg_version="$1"
1021 pkg="${1%% *}"
1022 headers="$2"
1023 funcs="$3"
1024 shift 3
1025 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1026 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1027 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1028 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1029 set_safe "${pkg}_cflags" $pkg_cflags &&
1030 set_safe "${pkg}_extralibs" $pkg_libs
1031 }
1032
1033 check_exec(){
1034 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1035 }
1036
1037 check_exec_crash(){
1038 log check_exec_crash "$@"
1039 code=$(cat)
1040
1041 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1042 # are safe but may not be available everywhere. Thus we use
1043 # raise(SIGTERM) instead. The check is run in a subshell so we
1044 # can redirect the "Terminated" message from the shell. SIGBUS
1045 # is not defined by standard C so it is used conditionally.
1046
1047 (check_exec "$@") >> $logfile 2>&1 <<EOF
1048 #include <signal.h>
1049 static void sighandler(int sig){
1050 raise(SIGTERM);
1051 }
1052 int foo(void){
1053 $code
1054 }
1055 int (*func_ptr)(void) = foo;
1056 int main(void){
1057 signal(SIGILL, sighandler);
1058 signal(SIGFPE, sighandler);
1059 signal(SIGSEGV, sighandler);
1060 #ifdef SIGBUS
1061 signal(SIGBUS, sighandler);
1062 #endif
1063 return func_ptr();
1064 }
1065 EOF
1066 }
1067
1068 check_type(){
1069 log check_type "$@"
1070 headers=$1
1071 type=$2
1072 shift 2
1073 disable_safe "$type"
1074 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1075 }
1076
1077 check_struct(){
1078 log check_struct "$@"
1079 headers=$1
1080 struct=$2
1081 member=$3
1082 shift 3
1083 disable_safe "${struct}_${member}"
1084 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1085 enable_safe "${struct}_${member}"
1086 }
1087
1088 check_builtin(){
1089 log check_builtin "$@"
1090 name=$1
1091 headers=$2
1092 builtin=$3
1093 shift 3
1094 disable "$name"
1095 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1096 }
1097
1098 check_compile_assert(){
1099 log check_compile_assert "$@"
1100 name=$1
1101 headers=$2
1102 condition=$3
1103 shift 3
1104 disable "$name"
1105 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1106 }
1107
1108 require(){
1109 log require "$@"
1110 name_version="$1"
1111 name="${1%% *}"
1112 headers="$2"
1113 func="$3"
1114 shift 3
1115 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1116 }
1117
1118 require_pkg_config(){
1119 log require_pkg_config "$@"
1120 pkg_version="$1"
1121 pkg="${1%% *}"
1122 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1123 add_cflags $(get_safe "${pkg}_cflags")
1124 add_extralibs $(get_safe "${pkg}_extralibs")
1125 }
1126
1127 hostcc_e(){
1128 eval printf '%s\\n' $HOSTCC_E
1129 }
1130
1131 hostcc_o(){
1132 eval printf '%s\\n' $HOSTCC_O
1133 }
1134
1135 check_host_cc(){
1136 log check_host_cc "$@"
1137 cat > $TMPC
1138 log_file $TMPC
1139 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1140 }
1141
1142 check_host_cpp(){
1143 log check_host_cpp "$@"
1144 cat > $TMPC
1145 log_file $TMPC
1146 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1147 }
1148
1149 check_host_cppflags(){
1150 log check_host_cppflags "$@"
1151 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1152 int x;
1153 EOF
1154 }
1155
1156 check_host_cflags(){
1157 log check_host_cflags "$@"
1158 set -- $($host_cflags_filter "$@")
1159 check_host_cc "$@" <<EOF && append host_cflags "$@"
1160 int x;
1161 EOF
1162 }
1163
1164 check_host_cpp_condition(){
1165 log check_host_cpp_condition "$@"
1166 header=$1
1167 condition=$2
1168 shift 2
1169 check_host_cpp "$@" <<EOF
1170 #include <$header>
1171 #if !($condition)
1172 #error "unsatisfied condition: $condition"
1173 #endif
1174 EOF
1175 }
1176
1177 apply(){
1178 file=$1
1179 shift
1180 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1181 }
1182
1183 cp_if_changed(){
1184 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1185 mkdir -p "$(dirname $2)"
1186 cp -f "$1" "$2"
1187 }
1188
1189 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1190 # system-dependent things.
1191
1192 AVCODEC_COMPONENTS="
1193 bsfs
1194 decoders
1195 encoders
1196 hwaccels
1197 parsers
1198 "
1199
1200 AVDEVICE_COMPONENTS="
1201 indevs
1202 outdevs
1203 "
1204 AVFILTER_COMPONENTS="
1205 filters
1206 "
1207 AVFORMAT_COMPONENTS="
1208 demuxers
1209 muxers
1210 protocols
1211 "
1212
1213 AVRESAMPLE_COMPONENTS=""
1214 AVUTIL_COMPONENTS=""
1215
1216 COMPONENT_LIST="
1217 $AVCODEC_COMPONENTS
1218 $AVDEVICE_COMPONENTS
1219 $AVFILTER_COMPONENTS
1220 $AVFORMAT_COMPONENTS
1221 $AVRESAMPLE_COMPONENTS
1222 $AVUTIL_COMPONENTS
1223 "
1224
1225 EXAMPLE_LIST="
1226 decode_audio_example
1227 decode_video_example
1228 encode_audio_example
1229 encode_video_example
1230 filter_audio_example
1231 metadata_example
1232 output_example
1233 qsvdec_example
1234 transcode_aac_example
1235 "
1236
1237 HWACCEL_LIBRARY_NONFREE_LIST="
1238 cuda
1239 libnpp
1240 "
1241 HWACCEL_LIBRARY_LIST="
1242 $HWACCEL_LIBRARY_NONFREE_LIST
1243 d3d11va
1244 dxva2
1245 libmfx
1246 mmal
1247 nvenc
1248 omx
1249 vaapi
1250 vda
1251 vdpau
1252 "
1253
1254 EXTERNAL_LIBRARY_GPL_LIST="
1255 libcdio
1256 libx264
1257 libx265
1258 libxavs
1259 libxvid
1260 "
1261
1262 EXTERNAL_LIBRARY_NONFREE_LIST="
1263 libfaac
1264 libfdk_aac
1265 openssl
1266 "
1267
1268 EXTERNAL_LIBRARY_VERSION3_LIST="
1269 libopencore_amrnb
1270 libopencore_amrwb
1271 libvo_aacenc
1272 libvo_amrwbenc
1273 "
1274
1275 EXTERNAL_LIBRARY_LIST="
1276 $EXTERNAL_LIBRARY_GPL_LIST
1277 $EXTERNAL_LIBRARY_NONFREE_LIST
1278 $EXTERNAL_LIBRARY_VERSION3_LIST
1279 avisynth
1280 avxsynth
1281 bzlib
1282 frei0r
1283 gnutls
1284 libbs2b
1285 libdc1394
1286 libdcadec
1287 libfontconfig
1288 libfreetype
1289 libgsm
1290 libhdcd
1291 libilbc
1292 libkvazaar
1293 libmp3lame
1294 libopencv
1295 libopenh264
1296 libopenjpeg
1297 libopus
1298 libpulse
1299 librtmp
1300 libschroedinger
1301 libsnappy
1302 libspeex
1303 libtheora
1304 libtwolame
1305 libvorbis
1306 libvpx
1307 libwavpack
1308 libwebp
1309 libxcb
1310 libxcb_shm
1311 libxcb_xfixes
1312 zlib
1313 "
1314
1315 FEATURE_LIST="
1316 gray
1317 hardcoded_tables
1318 omx_rpi
1319 runtime_cpudetect
1320 safe_bitstream_reader
1321 shared
1322 small
1323 sram
1324 static
1325 swscale_alpha
1326 "
1327
1328 LIBRARY_LIST="
1329 avcodec
1330 avdevice
1331 avfilter
1332 avformat
1333 avresample
1334 avutil
1335 swscale
1336 "
1337
1338 LICENSE_LIST="
1339 gpl
1340 nonfree
1341 version3
1342 "
1343
1344 PROGRAM_LIST="
1345 avconv
1346 avplay
1347 avprobe
1348 "
1349
1350 SUBSYSTEM_LIST="
1351 dct
1352 doc
1353 error_resilience
1354 faan
1355 fft
1356 lsp
1357 lzo
1358 mdct
1359 network
1360 rdft
1361 "
1362
1363 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1364 CONFIG_LIST="
1365 $EXAMPLE_LIST
1366 $EXTERNAL_LIBRARY_LIST
1367 $HWACCEL_LIBRARY_LIST
1368 $FEATURE_LIST
1369 $LICENSE_LIST
1370 $LIBRARY_LIST
1371 $PROGRAM_LIST
1372 $SUBSYSTEM_LIST
1373 neon_clobber_test
1374 pic
1375 pod2man
1376 texi2html
1377 thumb
1378 valgrind_backtrace
1379 xmm_clobber_test
1380 $COMPONENT_LIST
1381 "
1382
1383 THREADS_LIST="
1384 pthreads
1385 w32threads
1386 "
1387
1388 ATOMICS_LIST="
1389 atomics_gcc
1390 atomics_suncc
1391 atomics_win32
1392 "
1393
1394 ARCH_LIST="
1395 aarch64
1396 alpha
1397 arm
1398 avr32
1399 avr32_ap
1400 avr32_uc
1401 bfin
1402 ia64
1403 m68k
1404 mips
1405 mips64
1406 parisc
1407 ppc
1408 ppc64
1409 s390
1410 sh4
1411 sparc
1412 sparc64
1413 tilegx
1414 tilepro
1415 tomi
1416 x86
1417 x86_32
1418 x86_64
1419 "
1420
1421 ARCH_EXT_LIST_ARM="
1422 armv5te
1423 armv6
1424 armv6t2
1425 armv8
1426 neon
1427 vfp
1428 vfpv3
1429 "
1430
1431 ARCH_EXT_LIST_X86_SIMD="
1432 amd3dnow
1433 amd3dnowext
1434 avx
1435 avx2
1436 fma3
1437 fma4
1438 mmx
1439 mmxext
1440 sse
1441 sse2
1442 sse3
1443 sse4
1444 sse42
1445 ssse3
1446 xop
1447 "
1448
1449 ARCH_EXT_LIST_PPC="
1450 altivec
1451 dcbzl
1452 ldbrx
1453 power8
1454 ppc4xx
1455 vsx
1456 "
1457
1458 ARCH_EXT_LIST_X86="
1459 $ARCH_EXT_LIST_X86_SIMD
1460 cpunop
1461 i686
1462 "
1463
1464 ARCH_EXT_LIST_MIPS="
1465 loongson
1466 mips32r1
1467 mips64r1
1468 mips32r2
1469 mips64r2
1470 mips32r6
1471 mips64r6
1472 "
1473
1474 ARCH_EXT_LIST="
1475 $ARCH_EXT_LIST_ARM
1476 $ARCH_EXT_LIST_MIPS
1477 $ARCH_EXT_LIST_PPC
1478 $ARCH_EXT_LIST_X86
1479 vis
1480 "
1481
1482 ARCH_FEATURES="
1483 aligned_stack
1484 fast_64bit
1485 fast_clz
1486 fast_cmov
1487 local_aligned_8
1488 local_aligned_16
1489 local_aligned_32
1490 simd_align_16
1491 simd_align_32
1492 "
1493
1494 BUILTIN_LIST="
1495 atomic_cas_ptr
1496 machine_rw_barrier
1497 MemoryBarrier
1498 mm_empty
1499 rdtsc
1500 sem_timedwait
1501 sync_val_compare_and_swap
1502 "
1503 HAVE_LIST_CMDLINE="
1504 inline_asm
1505 symver
1506 yasm
1507 "
1508
1509 HAVE_LIST_PUB="
1510 bigendian
1511 fast_unaligned
1512 "
1513
1514 HEADERS_LIST="
1515 AVFoundation_AVFoundation_h
1516 alsa_asoundlib_h
1517 altivec_h
1518 arpa_inet_h
1519 cdio_paranoia_h
1520 cdio_paranoia_paranoia_h
1521 d3d11_h
1522 dispatch_dispatch_h
1523 dev_bktr_ioctl_bt848_h
1524 dev_bktr_ioctl_meteor_h
1525 dev_ic_bt8xx_h
1526 dev_video_bktr_ioctl_bt848_h
1527 dev_video_meteor_ioctl_meteor_h
1528 direct_h
1529 dlfcn_h
1530 dxva_h
1531 gsm_h
1532 io_h
1533 mach_mach_time_h
1534 machine_ioctl_bt848_h
1535 machine_ioctl_meteor_h
1536 malloc_h
1537 poll_h
1538 sndio_h
1539 soundcard_h
1540 stdatomic_h
1541 sys_mman_h
1542 sys_param_h
1543 sys_resource_h
1544 sys_select_h
1545 sys_soundcard_h
1546 sys_time_h
1547 sys_un_h
1548 sys_videoio_h
1549 unistd_h
1550 valgrind_valgrind_h
1551 windows_h
1552 winsock2_h
1553 "
1554
1555 INTRINSICS_LIST="
1556 intrinsics_neon
1557 "
1558
1559 MATH_FUNCS="
1560 atanf
1561 atan2f
1562 cbrtf
1563 cosf
1564 exp2
1565 exp2f
1566 expf
1567 isinf
1568 isnan
1569 ldexpf
1570 llrint
1571 llrintf
1572 log2
1573 log2f
1574 log10f
1575 lrint
1576 lrintf
1577 powf
1578 rint
1579 round
1580 roundf
1581 sinf
1582 trunc
1583 truncf
1584 "
1585
1586 SYSTEM_FUNCS="
1587 aligned_malloc
1588 clock_gettime
1589 closesocket
1590 CommandLineToArgvW
1591 CoTaskMemFree
1592 CryptGenRandom
1593 dlopen
1594 fcntl
1595 flt_lim
1596 fork
1597 getaddrinfo
1598 gethrtime
1599 getopt
1600 GetProcessAffinityMask
1601 GetProcessMemoryInfo
1602 GetProcessTimes
1603 getrusage
1604 GetSystemTimeAsFileTime
1605 gettimeofday
1606 gmtime_r
1607 inet_aton
1608 isatty
1609 jack_port_get_latency_range
1610 LoadLibrary
1611 localtime_r
1612 mach_absolute_time
1613 MapViewOfFile
1614 memalign
1615 mkstemp
1616 mmap
1617 mprotect
1618 nanosleep
1619 posix_memalign
1620 sched_getaffinity
1621 SetConsoleTextAttribute
1622 setmode
1623 setrlimit
1624 Sleep
1625 strerror_r
1626 sysconf
1627 sysctl
1628 usleep
1629 VirtualAlloc
1630 "
1631
1632 TOOLCHAIN_FEATURES="
1633 as_dn_directive
1634 as_fpu_directive
1635 as_func
1636 as_object_arch
1637 asm_mod_q
1638 attribute_may_alias
1639 attribute_packed
1640 ebp_available
1641 ebx_available
1642 gnu_as
1643 ibm_asm
1644 inline_asm_labels
1645 pragma_deprecated
1646 symver_asm_label
1647 symver_gnu_asm
1648 vfp_args
1649 xform_asm
1650 xmm_clobbers
1651 "
1652
1653 TYPES_LIST="
1654 CONDITION_VARIABLE_Ptr
1655 socklen_t
1656 struct_addrinfo
1657 struct_group_source_req
1658 struct_ip_mreq_source
1659 struct_ipv6_mreq
1660 struct_pollfd
1661 struct_rusage_ru_maxrss
1662 struct_sockaddr_in6
1663 struct_sockaddr_sa_len
1664 struct_sockaddr_storage
1665 struct_v4l2_frmivalenum_discrete
1666 "
1667
1668 HAVE_LIST="
1669 $ARCH_EXT_LIST
1670 $(add_suffix _external $ARCH_EXT_LIST)
1671 $(add_suffix _inline $ARCH_EXT_LIST)
1672 $ARCH_FEATURES
1673 $BUILTIN_LIST
1674 $HAVE_LIST_CMDLINE
1675 $HAVE_LIST_PUB
1676 $HEADERS_LIST
1677 $INTRINSICS_LIST
1678 $MATH_FUNCS
1679 $SYSTEM_FUNCS
1680 $THREADS_LIST
1681 $TOOLCHAIN_FEATURES
1682 $TYPES_LIST
1683 dos_paths
1684 dxva2_lib
1685 libc_msvcrt
1686 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1687 sdl
1688 section_data_rel_ro
1689 threads
1690 vaapi_drm
1691 vaapi_x11
1692 vdpau_x11
1693 "
1694
1695 # options emitted with CONFIG_ prefix but not available on the command line
1696 CONFIG_EXTRA="
1697 aandcttables
1698 ac3dsp
1699 audio_frame_queue
1700 audiodsp
1701 blockdsp
1702 bswapdsp
1703 cabac
1704 dirac_parse
1705 dvprofile
1706 faandct
1707 faanidct
1708 fdctdsp
1709 flacdsp
1710 fmtconvert
1711 g722dsp
1712 gmp
1713 golomb
1714 gplv3
1715 h263dsp
1716 h264chroma
1717 h264dsp
1718 h264parse
1719 h264pred
1720 h264qpel
1721 hevc_ps
1722 hpeldsp
1723 huffman
1724 huffyuvdsp
1725 huffyuvencdsp
1726 idctdsp
1727 iirfilter
1728 imdct15
1729 intrax8
1730 iso_media
1731 ividsp
1732 jpegtables
1733 libx262
1734 lgplv3
1735 lpc
1736 lzf
1737 me_cmp
1738 mpeg_er
1739 mpegaudio
1740 mpegaudiodsp
1741 mpegaudioheader
1742 mpegvideo
1743 mpegvideoenc
1744 mss34dsp
1745 pixblockdsp
1746 qpeldsp
1747 qsv
1748 qsvdec
1749 qsvenc
1750 rangecoder
1751 riffdec
1752 riffenc
1753 rtpdec
1754 rtpenc_chain
1755 rv34dsp
1756 sinewin
1757 snappy
1758 srtp
1759 startcode
1760 texturedsp
1761 texturedspenc
1762 tpeldsp
1763 vaapi_encode
1764 vc1dsp
1765 videodsp
1766 vp3dsp
1767 vp56dsp
1768 vp8dsp
1769 wma_freqs
1770 wmv2dsp
1771 "
1772
1773 CMDLINE_SELECT="
1774 $ARCH_EXT_LIST
1775 $CONFIG_LIST
1776 $HAVE_LIST_CMDLINE
1777 $THREADS_LIST
1778 asm
1779 cross_compile
1780 debug
1781 extra_warnings
1782 logging
1783 lto
1784 optimizations
1785 rpath
1786 "
1787
1788 PATHS_LIST="
1789 bindir
1790 datadir
1791 docdir
1792 incdir
1793 libdir
1794 mandir
1795 prefix
1796 shlibdir
1797 "
1798
1799 CMDLINE_SET="
1800 $PATHS_LIST
1801 ar
1802 arch
1803 as
1804 cc
1805 objcc
1806 cpu
1807 cross_prefix
1808 custom_allocator
1809 dep_cc
1810 env
1811 extra_version
1812 host_cc
1813 host_cflags
1814 host_extralibs
1815 host_ld
1816 host_ldflags
1817 host_os
1818 ld
1819 logfile
1820 malloc_prefix
1821 nm
1822 optflags
1823 pkg_config
1824 pkg_config_flags
1825 random_seed
1826 samples
1827 sysinclude
1828 sysroot
1829 target_exec
1830 target_os
1831 target_path
1832 target_samples
1833 toolchain
1834 "
1835
1836 CMDLINE_APPEND="
1837 extra_cflags
1838 extra_objcflags
1839 host_cppflags
1840 "
1841
1842 # code dependency declarations
1843
1844 # architecture extensions
1845
1846 armv5te_deps="arm"
1847 armv6_deps="arm"
1848 armv6t2_deps="arm"
1849 armv8_deps="aarch64"
1850 neon_deps_any="aarch64 arm"
1851 intrinsics_neon_deps="neon"
1852 vfp_deps_any="aarch64 arm"
1853 vfpv3_deps="vfp"
1854
1855 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1856
1857 altivec_deps="ppc"
1858 ppc4xx_deps="ppc"
1859 vsx_deps="altivec"
1860 power8_deps="vsx"
1861
1862 cpunop_deps="i686"
1863 x86_64_select="i686"
1864 x86_64_suggest="fast_cmov"
1865
1866 amd3dnow_deps="mmx"
1867 amd3dnowext_deps="amd3dnow"
1868 i686_deps="x86"
1869 mmx_deps="x86"
1870 mmxext_deps="mmx"
1871 sse_deps="mmxext"
1872 sse2_deps="sse"
1873 sse3_deps="sse2"
1874 ssse3_deps="sse3"
1875 sse4_deps="ssse3"
1876 sse42_deps="sse4"
1877 avx_deps="sse42"
1878 xop_deps="avx"
1879 fma3_deps="avx"
1880 fma4_deps="avx"
1881 avx2_deps="avx"
1882
1883 mmx_external_deps="yasm"
1884 mmx_inline_deps="inline_asm"
1885 mmx_suggest="mmx_external mmx_inline"
1886
1887 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1888 eval dep=\$${ext}_deps
1889 eval ${ext}_external_deps='"${dep}_external"'
1890 eval ${ext}_inline_deps='"${dep}_inline"'
1891 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1892 done
1893
1894 aligned_stack_if_any="aarch64 ppc x86"
1895 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1896 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1897 fast_unaligned_if_any="aarch64 ppc x86"
1898 simd_align_16_if_any="altivec neon sse"
1899 simd_align_32_if_any="avx"
1900
1901 # system capabilities
1902 symver_if_any="symver_asm_label symver_gnu_asm"
1903 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1904
1905 # threading support
1906 atomics_gcc_if="sync_val_compare_and_swap"
1907 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1908 atomics_win32_if="MemoryBarrier"
1909 atomics_native_if_any="$ATOMICS_LIST"
1910 w32threads_deps="atomics_native"
1911 threads_if_any="$THREADS_LIST"
1912
1913 # subsystems
1914 dct_select="rdft"
1915 dirac_parse_select="golomb"
1916 error_resilience_select="me_cmp"
1917 faandct_deps="faan fdctdsp"
1918 faanidct_deps="faan idctdsp"
1919 h264dsp_select="startcode"
1920 hevc_ps_select="golomb"
1921 intrax8_select="blockdsp idctdsp"
1922 mdct_select="fft"
1923 rdft_select="fft"
1924 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1925 mpeg_er_select="error_resilience"
1926 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1927 mpegaudiodsp_select="dct"
1928 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1929 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1930 vc1dsp_select="h264chroma qpeldsp startcode"
1931
1932 # decoders / encoders
1933 aac_decoder_select="imdct15 mdct sinewin"
1934 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1935 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1936 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1937 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1938 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1939 adpcm_g722_decoder_select="g722dsp"
1940 adpcm_g722_encoder_select="g722dsp"
1941 aic_decoder_select="golomb idctdsp"
1942 alac_encoder_select="lpc"
1943 als_decoder_select="bswapdsp"
1944 amrnb_decoder_select="lsp"
1945 amrwb_decoder_select="lsp"
1946 amv_decoder_select="sp5x_decoder"
1947 ape_decoder_select="bswapdsp"
1948 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1949 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1950 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1951 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1952 atrac1_decoder_select="mdct sinewin"
1953 atrac3_decoder_select="mdct"
1954 atrac3p_decoder_select="mdct sinewin"
1955 bink_decoder_select="blockdsp hpeldsp"
1956 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1957 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1958 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1959 cllc_decoder_select="bswapdsp"
1960 comfortnoise_encoder_select="lpc"
1961 cook_decoder_select="audiodsp mdct sinewin"
1962 cscd_decoder_select="lzo"
1963 cscd_decoder_suggest="zlib"
1964 dca_decoder_select="fmtconvert mdct"
1965 dds_decoder_select="texturedsp"
1966 dnxhd_decoder_select="blockdsp idctdsp"
1967 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1968 dvvideo_decoder_select="dvprofile idctdsp"
1969 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1970 dxa_decoder_deps="zlib"
1971 dxv_decoder_select="lzf texturedsp"
1972 eac3_decoder_select="ac3_decoder"
1973 eac3_encoder_select="ac3_encoder"
1974 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1975 eatgq_decoder_select="aandcttables idctdsp"
1976 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1977 exr_decoder_deps="zlib"
1978 ffv1_decoder_select="rangecoder"
1979 ffv1_encoder_select="rangecoder"
1980 ffvhuff_decoder_select="huffyuv_decoder"
1981 ffvhuff_encoder_select="huffyuv_encoder"
1982 fic_decoder_select="golomb"
1983 flac_decoder_select="flacdsp"
1984 flac_encoder_select="bswapdsp flacdsp lpc"
1985 flashsv_decoder_deps="zlib"
1986 flashsv_encoder_deps="zlib"
1987 flashsv2_decoder_deps="zlib"
1988 flv_decoder_select="h263_decoder"
1989 flv_encoder_select="h263_encoder"
1990 fourxm_decoder_select="blockdsp bswapdsp"
1991 fraps_decoder_select="bswapdsp huffman"
1992 g2m_decoder_deps="zlib"
1993 g2m_decoder_select="blockdsp idctdsp jpegtables"
1994 h261_decoder_select="mpeg_er mpegvideo"
1995 h261_encoder_select="aandcttables mpegvideoenc"
1996 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1997 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1998 h263i_decoder_select="h263_decoder"
1999 h263p_encoder_select="h263_encoder"
2000 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2001 h264_decoder_suggest="error_resilience"
2002 hap_decoder_select="snappy texturedsp"
2003 hap_encoder_deps="libsnappy"
2004 hap_encoder_select="texturedspenc"
2005 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2006 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2007 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2008 iac_decoder_select="imc_decoder"
2009 imc_decoder_select="bswapdsp fft mdct sinewin"
2010 indeo3_decoder_select="hpeldsp"
2011 indeo4_decoder_select="ividsp"
2012 indeo5_decoder_select="ividsp"
2013 interplay_video_decoder_select="hpeldsp"
2014 jpegls_decoder_select="mjpeg_decoder"
2015 jv_decoder_select="blockdsp"
2016 lagarith_decoder_select="huffyuvdsp"
2017 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2018 magicyuv_decoder_select="huffyuvdsp"
2019 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2020 metasound_decoder_select="lsp mdct sinewin"
2021 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2022 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2023 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2024 mjpegb_decoder_select="mjpeg_decoder"
2025 mlp_decoder_select="mlp_parser"
2026 motionpixels_decoder_select="bswapdsp"
2027 mp1_decoder_select="mpegaudio"
2028 mp1float_decoder_select="mpegaudio"
2029 mp2_decoder_select="mpegaudio"
2030 mp2float_decoder_select="mpegaudio"
2031 mp3_decoder_select="mpegaudio"
2032 mp3adu_decoder_select="mpegaudio"
2033 mp3adufloat_decoder_select="mpegaudio"
2034 mp3float_decoder_select="mpegaudio"
2035 mp3on4_decoder_select="mpegaudio"
2036 mp3on4float_decoder_select="mpegaudio"
2037 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2038 mpc8_decoder_select="mpegaudiodsp"
2039 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2040 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2041 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2042 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2043 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2044 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2045 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2046 mpeg4_encoder_select="h263_encoder"
2047 msa1_decoder_select="mss34dsp"
2048 msmpeg4v1_decoder_select="h263_decoder"
2049 msmpeg4v2_decoder_select="h263_decoder"
2050 msmpeg4v2_encoder_select="h263_encoder"
2051 msmpeg4v3_decoder_select="h263_decoder"
2052 msmpeg4v3_encoder_select="h263_encoder"
2053 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2054 mts2_decoder_select="mss34dsp"
2055 mxpeg_decoder_select="mjpeg_decoder"
2056 nellymoser_decoder_select="mdct sinewin"
2057 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2058 nuv_decoder_select="idctdsp lzo"
2059 on2avc_decoder_select="mdct"
2060 opus_decoder_deps="avresample"
2061 opus_decoder_select="imdct15"
2062 png_decoder_deps="zlib"
2063 png_encoder_deps="zlib"
2064 png_encoder_select="huffyuvencdsp"
2065 prores_decoder_select="idctdsp"
2066 prores_encoder_select="fdctdsp"
2067 qcelp_decoder_select="lsp"
2068 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2069 ra_144_encoder_select="audio_frame_queue lpc"
2070 ralf_decoder_select="golomb"
2071 rscc_decoder_deps="zlib"
2072 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2073 rv10_encoder_select="h263_encoder"
2074 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2075 rv20_encoder_select="h263_encoder"
2076 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2077 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2078 screenpresso_decoder_deps="zlib"
2079 sipr_decoder_select="lsp"
2080 sp5x_decoder_select="mjpeg_decoder"
2081 svq1_decoder_select="hpeldsp"
2082 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2083 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2084 svq3_decoder_suggest="zlib"
2085 tak_decoder_select="audiodsp"
2086 tdsc_decoder_deps="zlib"
2087 tdsc_decoder_select="mjpeg_decoder"
2088 theora_decoder_select="vp3_decoder"
2089 thp_decoder_select="mjpeg_decoder"
2090 tiff_decoder_suggest="zlib"
2091 tiff_encoder_suggest="zlib"
2092 truehd_decoder_select="mlp_decoder"
2093 truemotion2_decoder_select="bswapdsp"
2094 truespeech_decoder_select="bswapdsp"
2095 tscc_decoder_deps="zlib"
2096 txd_decoder_select="texturedsp"
2097 twinvq_decoder_select="mdct lsp sinewin"
2098 utvideo_decoder_select="bswapdsp"
2099 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2100 vble_decoder_select="huffyuvdsp"
2101 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2102 vc1image_decoder_select="vc1_decoder"
2103 vorbis_decoder_select="mdct"
2104 vorbis_encoder_select="mdct"
2105 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2106 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2107 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2108 vp6a_decoder_select="vp6_decoder"
2109 vp6f_decoder_select="vp6_decoder"
2110 vp7_decoder_select="h264pred videodsp vp8dsp"
2111 vp8_decoder_select="h264pred videodsp vp8dsp"
2112 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2113 webp_decoder_select="vp8_decoder"
2114 wmapro_decoder_select="mdct sinewin wma_freqs"
2115 wmav1_decoder_select="mdct sinewin wma_freqs"
2116 wmav1_encoder_select="mdct sinewin wma_freqs"
2117 wmav2_decoder_select="mdct sinewin wma_freqs"
2118 wmav2_encoder_select="mdct sinewin wma_freqs"
2119 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2120 wmv1_decoder_select="h263_decoder"
2121 wmv1_encoder_select="h263_encoder"
2122 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2123 wmv2_encoder_select="h263_encoder wmv2dsp"
2124 wmv3_decoder_select="vc1_decoder"
2125 wmv3image_decoder_select="wmv3_decoder"
2126 zerocodec_decoder_deps="zlib"
2127 zlib_decoder_deps="zlib"
2128 zlib_encoder_deps="zlib"
2129 zmbv_decoder_deps="zlib"
2130 zmbv_encoder_deps="zlib"
2131
2132 # hardware accelerators
2133 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2134 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2135 dxva2_lib_deps="dxva2"
2136 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2137 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
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_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2161 hevc_vaapi_hwaccel_select="hevc_decoder"
2162 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2163 hevc_vdpau_hwaccel_select="hevc_decoder"
2164 mpeg1_vdpau_hwaccel_deps="vdpau"
2165 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2166 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2167 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2168 mpeg2_dxva2_hwaccel_deps="dxva2"
2169 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2170 mpeg2_mmal_hwaccel_deps="mmal"
2171 mpeg2_qsv_hwaccel_deps="libmfx"
2172 mpeg2_vaapi_hwaccel_deps="vaapi"
2173 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2174 mpeg2_vdpau_hwaccel_deps="vdpau"
2175 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2176 mpeg4_vaapi_hwaccel_deps="vaapi"
2177 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2178 mpeg4_vdpau_hwaccel_deps="vdpau"
2179 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2180 vc1_d3d11va_hwaccel_deps="d3d11va"
2181 vc1_d3d11va_hwaccel_select="vc1_decoder"
2182 vc1_dxva2_hwaccel_deps="dxva2"
2183 vc1_dxva2_hwaccel_select="vc1_decoder"
2184 vc1_mmal_hwaccel_deps="mmal"
2185 vc1_qsv_hwaccel_deps="libmfx"
2186 vc1_vaapi_hwaccel_deps="vaapi"
2187 vc1_vaapi_hwaccel_select="vc1_decoder"
2188 vc1_vdpau_hwaccel_deps="vdpau"
2189 vc1_vdpau_hwaccel_select="vc1_decoder"
2190 vp8_qsv_hwaccel_deps="libmfx"
2191 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2192 vp8_vaapi_hwaccel_select="vp8_decoder"
2193 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2194 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2195 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2196 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2197
2198 # hardware-accelerated codecs
2199 nvenc_deps_any="dlopen LoadLibrary"
2200 nvenc_extralibs='$ldl'
2201 omx_deps="dlopen pthreads"
2202 omx_extralibs='$ldl'
2203 omx_rpi_select="omx"
2204 qsvdec_select="qsv"
2205 qsvenc_select="qsv"
2206 vaapi_encode_deps="vaapi"
2207
2208 hwupload_cuda_filter_deps="cuda"
2209 scale_npp_filter_deps="cuda libnpp"
2210
2211 h264_mmal_decoder_deps="mmal"
2212 h264_nvenc_encoder_deps="nvenc"
2213 h264_omx_encoder_deps="omx"
2214 h264_qsv_decoder_deps="libmfx"
2215 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2216 h264_qsv_encoder_deps="libmfx"
2217 h264_qsv_encoder_select="qsvenc"
2218 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2219 h264_vaapi_encoder_select="vaapi_encode golomb"
2220 hevc_nvenc_encoder_deps="nvenc"
2221 hevc_qsv_decoder_deps="libmfx"
2222 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2223 hevc_qsv_encoder_deps="libmfx"
2224 hevc_qsv_encoder_select="hevc_ps qsvenc"
2225 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2226 hevc_vaapi_encoder_select="vaapi_encode golomb"
2227 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2228 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2229 mpeg2_mmal_decoder_deps="mmal"
2230 mpeg2_qsv_decoder_deps="libmfx"
2231 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2232 mpeg2_qsv_encoder_deps="libmfx"
2233 mpeg2_qsv_encoder_select="qsvenc"
2234 mpeg4_omx_encoder_deps="omx"
2235 vc1_mmal_decoder_deps="mmal"
2236 vc1_qsv_decoder_deps="libmfx"
2237 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2238 vp8_qsv_decoder_deps="libmfx"
2239 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2240
2241 nvenc_h264_encoder_select="h264_nvenc_encoder"
2242 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2243
2244 # parsers
2245 h264_parser_select="golomb h264dsp h264parse"
2246 hevc_parser_select="hevc_ps"
2247 mpegaudio_parser_select="mpegaudioheader"
2248 mpegvideo_parser_select="mpegvideo"
2249 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2250 vc1_parser_select="vc1dsp"
2251
2252 # bitstream_filters
2253 mjpeg2jpeg_bsf_select="jpegtables"
2254
2255 # external libraries
2256 avisynth_deps="LoadLibrary"
2257 avxsynth_deps="dlopen"
2258 avisynth_demuxer_deps_any="avisynth avxsynth"
2259 avisynth_demuxer_select="riffdec"
2260 libdcadec_decoder_deps="libdcadec"
2261 libfaac_encoder_deps="libfaac"
2262 libfaac_encoder_select="audio_frame_queue"
2263 libfdk_aac_decoder_deps="libfdk_aac"
2264 libfdk_aac_encoder_deps="libfdk_aac"
2265 libfdk_aac_encoder_select="audio_frame_queue"
2266 libgsm_decoder_deps="libgsm"
2267 libgsm_encoder_deps="libgsm"
2268 libgsm_ms_decoder_deps="libgsm"
2269 libgsm_ms_encoder_deps="libgsm"
2270 libilbc_decoder_deps="libilbc"
2271 libilbc_encoder_deps="libilbc"
2272 libkvazaar_encoder_deps="libkvazaar"
2273 libmp3lame_encoder_deps="libmp3lame"
2274 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2275 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2276 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2277 libopencore_amrnb_encoder_select="audio_frame_queue"
2278 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2279 libopenh264_decoder_deps="libopenh264"
2280 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2281 libopenh264_encoder_deps="libopenh264"
2282 libopenjpeg_decoder_deps="libopenjpeg"
2283 libopenjpeg_encoder_deps="libopenjpeg"
2284 libopus_decoder_deps="libopus"
2285 libopus_encoder_deps="libopus"
2286 libopus_encoder_select="audio_frame_queue"
2287 libschroedinger_decoder_deps="libschroedinger"
2288 libschroedinger_encoder_deps="libschroedinger"
2289 libspeex_decoder_deps="libspeex"
2290 libspeex_encoder_deps="libspeex"
2291 libspeex_encoder_select="audio_frame_queue"
2292 libtheora_encoder_deps="libtheora"
2293 libtwolame_encoder_deps="libtwolame"
2294 libvo_aacenc_encoder_deps="libvo_aacenc"
2295 libvo_aacenc_encoder_select="audio_frame_queue"
2296 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2297 libvorbis_encoder_deps="libvorbis"
2298 libvorbis_encoder_select="audio_frame_queue"
2299 libvpx_vp8_decoder_deps="libvpx"
2300 libvpx_vp8_encoder_deps="libvpx"
2301 libvpx_vp9_decoder_deps="libvpx"
2302 libvpx_vp9_encoder_deps="libvpx"
2303 libwavpack_encoder_deps="libwavpack"
2304 libwavpack_encoder_select="audio_frame_queue"
2305 libwebp_encoder_deps="libwebp"
2306 libx262_encoder_deps="libx262"
2307 libx264_encoder_deps="libx264"
2308 libx265_encoder_deps="libx265"
2309 libxavs_encoder_deps="libxavs"
2310 libxvid_encoder_deps="libxvid mkstemp"
2311
2312 # demuxers / muxers
2313 ac3_demuxer_select="ac3_parser"
2314 asf_demuxer_select="riffdec"
2315 asf_muxer_select="riffenc"
2316 asf_stream_muxer_select="asf_muxer"
2317 avi_demuxer_select="iso_media riffdec"
2318 avi_muxer_select="riffenc"
2319 caf_demuxer_select="iso_media riffdec"
2320 dash_muxer_select="mp4_muxer"
2321 dirac_demuxer_select="dirac_parser"
2322 dv_demuxer_select="dvprofile"
2323 dv_muxer_select="dvprofile"
2324 dxa_demuxer_select="riffdec"
2325 eac3_demuxer_select="ac3_parser"
2326 f4v_muxer_select="mov_muxer"
2327 flac_demuxer_select="flac_parser"
2328 hds_muxer_select="flv_muxer"
2329 hls_muxer_select="mpegts_muxer"
2330 ipod_muxer_select="mov_muxer"
2331 ismv_muxer_select="mov_muxer"
2332 matroska_audio_muxer_select="matroska_muxer"
2333 matroska_demuxer_select="iso_media riffdec"
2334 matroska_demuxer_suggest="bzlib lzo zlib"
2335 matroska_muxer_select="iso_media riffenc"
2336 mmf_muxer_select="riffenc"
2337 mov_demuxer_select="iso_media riffdec"
2338 mov_demuxer_suggest="zlib"
2339 mov_muxer_select="iso_media riffenc rtpenc_chain"
2340 mp3_demuxer_select="mpegaudio_parser"
2341 mp3_muxer_select="mpegaudioheader"
2342 mp4_muxer_select="mov_muxer"
2343 mpegts_demuxer_select="iso_media"
2344 mpegts_muxer_select="adts_muxer latm_muxer"
2345 mpegtsraw_demuxer_select="mpegts_demuxer"
2346 mxf_d10_muxer_select="mxf_muxer"
2347 nut_muxer_select="riffenc"
2348 nuv_demuxer_select="riffdec"
2349 oga_muxer_select="ogg_muxer"
2350 ogg_demuxer_select="dirac_parse"
2351 opus_muxer_select="ogg_muxer"
2352 psp_muxer_select="mov_muxer"
2353 rtp_demuxer_select="sdp_demuxer"
2354 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2355 rtsp_demuxer_select="http_protocol rtpdec"
2356 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2357 sap_demuxer_select="sdp_demuxer"
2358 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2359 sdp_demuxer_select="rtpdec"
2360 smoothstreaming_muxer_select="ismv_muxer"
2361 spdif_muxer_select="aac_parser"
2362 spx_muxer_select="ogg_muxer"
2363 swf_demuxer_suggest="zlib"
2364 tak_demuxer_select="tak_parser"
2365 tg2_muxer_select="mov_muxer"
2366 tgp_muxer_select="mov_muxer"
2367 w64_demuxer_select="wav_demuxer"
2368 wav_demuxer_select="riffdec"
2369 wav_muxer_select="riffenc"
2370 webm_muxer_select="iso_media riffenc"
2371 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2372 wtv_demuxer_select="mpegts_demuxer riffdec"
2373 xmv_demuxer_select="riffdec"
2374 xwma_demuxer_select="riffdec"
2375
2376 # indevs / outdevs
2377 alsa_indev_deps="alsa"
2378 alsa_outdev_deps="alsa"
2379 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2380 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2381 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2382 dv1394_indev_deps="dv1394"
2383 dv1394_indev_select="dv_demuxer"
2384 fbdev_indev_deps="linux_fb_h"
2385 jack_indev_deps="jack"
2386 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2387 libcdio_indev_deps="libcdio"
2388 libdc1394_indev_deps="libdc1394"
2389 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2390 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2391 pulse_indev_deps="libpulse"
2392 sndio_indev_deps="sndio"
2393 sndio_outdev_deps="sndio"
2394 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2395 vfwcap_indev_deps="vfw32 vfwcap_defines"
2396 xcbgrab_indev_deps="libxcb"
2397
2398 # protocols
2399 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2400 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2401 ffrtmpcrypt_protocol_select="tcp_protocol"
2402 ffrtmphttp_protocol_deps="!librtmp_protocol"
2403 ffrtmphttp_protocol_select="http_protocol"
2404 gopher_protocol_select="network"
2405 http_protocol_select="tcp_protocol"
2406 httpproxy_protocol_select="tcp_protocol"
2407 https_protocol_select="tls_protocol"
2408 icecast_protocol_select="http_protocol"
2409 librtmp_protocol_deps="librtmp"
2410 librtmpe_protocol_deps="librtmp"
2411 librtmps_protocol_deps="librtmp"
2412 librtmpt_protocol_deps="librtmp"
2413 librtmpte_protocol_deps="librtmp"
2414 mmsh_protocol_select="http_protocol"
2415 mmst_protocol_select="network"
2416 rtmp_protocol_deps="!librtmp_protocol"
2417 rtmp_protocol_select="tcp_protocol"
2418 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2419 rtmps_protocol_deps="!librtmp_protocol"
2420 rtmps_protocol_select="tls_protocol"
2421 rtmpt_protocol_select="ffrtmphttp_protocol"
2422 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2423 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2424 rtp_protocol_select="udp_protocol"
2425 sctp_protocol_deps="struct_sctp_event_subscribe"
2426 sctp_protocol_select="network"
2427 srtp_protocol_select="rtp_protocol srtp"
2428 tcp_protocol_select="network"
2429 tls_gnutls_protocol_deps="gnutls"
2430 tls_gnutls_protocol_select="tcp_protocol"
2431 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2432 tls_openssl_protocol_select="tcp_protocol"
2433 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2434 udp_protocol_select="network"
2435 unix_protocol_deps="sys_un_h"
2436 unix_protocol_select="network"
2437
2438 # filters
2439 asyncts_filter_deps="avresample"
2440 blackframe_filter_deps="gpl"
2441 boxblur_filter_deps="gpl"
2442 bs2b_filter_deps="libbs2b"
2443 cropdetect_filter_deps="gpl"
2444 deinterlace_qsv_filter_deps="libmfx"
2445 deinterlace_vaapi_filter_deps="vaapi"
2446 delogo_filter_deps="gpl"
2447 drawtext_filter_deps="libfreetype"
2448 frei0r_filter_deps="frei0r dlopen"
2449 frei0r_filter_extralibs='$ldl'
2450 frei0r_src_filter_deps="frei0r dlopen"
2451 frei0r_src_filter_extralibs='$ldl'
2452 hdcd_filter_deps="libhdcd"
2453 hqdn3d_filter_deps="gpl"
2454 interlace_filter_deps="gpl"
2455 movie_filter_deps="avcodec avformat"
2456 ocv_filter_deps="libopencv"
2457 resample_filter_deps="avresample"
2458 scale_filter_deps="swscale"
2459 scale_qsv_filter_deps="libmfx"
2460 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2461
2462 # examples
2463 decode_audio_example_deps="avcodec avutil"
2464 decode_video_example_deps="avcodec avutil"
2465 encode_audio_example_deps="avcodec avutil"
2466 encode_video_example_deps="avcodec avutil"
2467 filter_audio_example_deps="avfilter avutil"
2468 metadata_example_deps="avformat avutil"
2469 output_example_deps="avcodec avformat avresample avutil swscale"
2470 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2471 transcode_aac_example_deps="avcodec avformat avresample"
2472
2473 # libraries, in linking order
2474 avcodec_deps="avutil"
2475 avcodec_select="null_bsf"
2476 avdevice_deps="avformat avcodec avutil"
2477 avfilter_deps="avutil"
2478 avformat_deps="avcodec avutil"
2479 avresample_deps="avutil"
2480 swscale_deps="avutil"
2481
2482 # programs
2483 avconv_deps="avcodec avfilter avformat avresample swscale"
2484 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2485 fps_filter null_filter resample_filter scale_filter
2486 trim_filter"
2487 avplay_deps="avcodec avfilter avformat avresample sdl"
2488 avplay_extralibs='$sdl_extralibs'
2489 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2490 avprobe_deps="avcodec avformat"
2491
2492 # documentation
2493 pod2man_deps="doc"
2494 texi2html_deps="doc"
2495
2496 # default parameters
2497
2498 logfile="avbuild/config.log"
2499
2500 # installation paths
2501 prefix_default="/usr/local"
2502 bindir_default='${prefix}/bin'
2503 datadir_default='${prefix}/share/avconv'
2504 docdir_default='${prefix}/share/doc/libav'
2505 incdir_default='${prefix}/include'
2506 libdir_default='${prefix}/lib'
2507 mandir_default='${prefix}/share/man'
2508 shlibdir_default="$libdir_default"
2509
2510 # toolchain
2511 ar_default="ar"
2512 cc_default="gcc"
2513 host_cc_default="gcc"
2514 ln_s="ln -s -f"
2515 nm_default="nm -g"
2516 objformat="elf"
2517 pkg_config_default=pkg-config
2518 ranlib="ranlib"
2519 strip="strip"
2520 version_script='--version-script'
2521 yasmexe="yasm"
2522
2523 # machine
2524 arch_default=$(uname -m)
2525 cpu="generic"
2526 intrinsics="none"
2527
2528 # OS
2529 target_os_default=$(tolower $(uname -s))
2530 host_os=$target_os_default
2531
2532 # configurable options
2533 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2534
2535 enable asm
2536 enable debug
2537 enable doc
2538 enable faan faandct faanidct
2539 enable optimizations
2540 enable safe_bitstream_reader
2541 enable static
2542 enable swscale_alpha
2543 enable valgrind_backtrace
2544
2545 # By default, enable only those hwaccels that have no external dependencies.
2546 enable d3d11va dxva2 vda vdpau
2547
2548 # build settings
2549 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2550 LIBPREF="lib"
2551 LIBSUF=".a"
2552 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2553 SLIBPREF="lib"
2554 SLIBSUF=".so"
2555 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2556 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2557 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2558 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2559 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2560 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2561 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2562
2563 asflags_filter=echo
2564 cflags_filter=echo
2565 ldflags_filter=echo
2566
2567 AS_C='-c'
2568 AS_O='-o $@'
2569 CC_C='-c'
2570 CC_E='-E -o $@'
2571 CC_O='-o $@'
2572 OBJCC_C='-c'
2573 OBJCC_E='-E -o $@'
2574 OBJCC_O='-o $@'
2575 LD_O='-o $@'
2576 LD_LIB='-l%'
2577 LD_PATH='-L'
2578 HOSTCC_C='-c'
2579 HOSTCC_E='-E -o $@'
2580 HOSTCC_O='-o $@'
2581 HOSTLD_O='-o $@'
2582
2583 host_extralibs='-lm'
2584 host_cflags_filter=echo
2585 host_ldflags_filter=echo
2586
2587 target_path='$(CURDIR)'
2588
2589 # since the object filename is not given with the -MM flag, the compiler
2590 # is only able to print the basename, and we must add the path ourselves
2591 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2592 DEPFLAGS='-MM'
2593
2594 # find source path
2595 if test -f configure; then
2596 source_path=.
2597 else
2598 source_path=$(cd $(dirname "$0"); pwd)
2599 echo "$source_path" | grep -q '[[:blank:]]' &&
2600 die "Out of tree builds are impossible with whitespace in source path."
2601 test -e "$source_path/config.h" &&
2602 die "Out of tree builds are impossible with config.h in source dir."
2603 fi
2604
2605 for v in "$@"; do
2606 r=${v#*=}
2607 l=${v%"$r"}
2608 r=$(sh_quote "$r")
2609 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2610 done
2611
2612 find_things(){
2613 thing=$1
2614 pattern=$2
2615 file=$source_path/$3
2616 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2617 }
2618
2619 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2620 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2621 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2622 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2623 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2624 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2625 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2626 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2627 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2628
2629 find_things_extern(){
2630 thing=$1
2631 pattern=$2
2632 file=$source_path/$3
2633 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2634 }
2635
2636 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2637 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2638
2639 ALL_COMPONENTS="
2640 $BSF_LIST
2641 $DECODER_LIST
2642 $DEMUXER_LIST
2643 $ENCODER_LIST
2644 $FILTER_LIST
2645 $HWACCEL_LIST
2646 $INDEV_LIST
2647 $MUXER_LIST
2648 $OUTDEV_LIST
2649 $PARSER_LIST
2650 $PROTOCOL_LIST
2651 "
2652
2653 for n in $COMPONENT_LIST; do
2654 v=$(toupper ${n%s})_LIST
2655 eval enable \$$v
2656 eval ${n}_if_any="\$$v"
2657 done
2658
2659 enable $ARCH_EXT_LIST
2660
2661 die_unknown(){
2662 echo "Unknown option \"$1\"."
2663 echo "See $0 --help for available options."
2664 exit 1
2665 }
2666
2667 print_3_columns() {
2668 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2669 }
2670
2671 show_list() {
2672 suffix=_$1
2673 shift
2674 echo $* | sed s/$suffix//g | print_3_columns
2675 exit 0
2676 }
2677
2678 rand_list(){
2679 IFS=', '
2680 set -- $*
2681 unset IFS
2682 for thing; do
2683 comp=${thing%:*}
2684 prob=${thing#$comp}
2685 prob=${prob#:}
2686 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2687 echo "prob ${prob:-0.5}"
2688 printf '%s\n' $comp
2689 done
2690 }
2691
2692 do_random(){
2693 action=$1
2694 shift
2695 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2696 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2697 }
2698
2699 for opt do
2700 optval="${opt#*=}"
2701 case "$opt" in
2702 --extra-ldflags=*)
2703 add_ldflags $optval
2704 ;;
2705 --extra-ldexeflags=*)
2706 add_ldexeflags $optval
2707 ;;
2708 --extra-libs=*)
2709 add_extralibs $optval
2710 ;;
2711 --disable-devices)
2712 disable $INDEV_LIST $OUTDEV_LIST
2713 ;;
2714 --enable-debug=*)
2715 debuglevel="$optval"
2716 ;;
2717 --disable-programs)
2718 disable $PROGRAM_LIST
2719 ;;
2720 --disable-everything)
2721 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2722 ;;
2723 --disable-all)
2724 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2725 disable $LIBRARY_LIST $PROGRAM_LIST doc
2726 ;;
2727 --enable-random|--disable-random)
2728 action=${opt%%-random}
2729 do_random ${action#--} $COMPONENT_LIST
2730 ;;
2731 --enable-random=*|--disable-random=*)
2732 action=${opt%%-random=*}
2733 do_random ${action#--} $optval
2734 ;;
2735 --enable-*=*|--disable-*=*)
2736 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2737 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2738 eval list=\$$(toupper $thing)_LIST
2739 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2740 $action $(filter "$name" $list)
2741 ;;
2742 --enable-avserver|--disable-avserver*)
2743 warn "avserver has been removed, the ${opt} option is only"\
2744 "provided for compatibility and will be removed in the future"
2745 ;;
2746 --enable-?*|--disable-?*)
2747 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2748 if is_in $option $COMPONENT_LIST; then
2749 test $action = disable && action=unset
2750 eval $action \$$(toupper ${option%s})_LIST
2751 elif is_in $option $CMDLINE_SELECT; then
2752 $action $option
2753 else
2754 die_unknown $opt
2755 fi
2756 ;;
2757 --list-*)
2758 NAME="${opt#--list-}"
2759 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2760 NAME=${NAME%s}
2761 eval show_list $NAME \$$(toupper $NAME)_LIST
2762 ;;
2763 --help|-h) show_help
2764 ;;
2765 --quiet|-q) quiet=yes
2766 ;;
2767 *)
2768 optname="${opt%%=*}"
2769 optname="${optname#--}"
2770 optname=$(echo "$optname" | sed 's/-/_/g')
2771 if is_in $optname $CMDLINE_SET; then
2772 eval $optname='$optval'
2773 elif is_in $optname $CMDLINE_APPEND; then
2774 append $optname "$optval"
2775 else
2776 die_unknown $opt
2777 fi
2778 ;;
2779 esac
2780 done
2781
2782 for e in $env; do
2783 eval "export $e"
2784 done
2785
2786 disabled logging && logfile=/dev/null
2787
2788 # Die early if licensing-related configure options are incompatible.
2789 die_license_disabled() {
2790 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2791 }
2792
2793 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2794 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2795 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2796
2797 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2798
2799 # Disable all the library-specific components if the library itself
2800 # is disabled, see AVCODEC_LIST and following _LIST variables.
2801
2802 disable_components(){
2803 disabled ${1} && disable $(
2804 eval components="\$$(toupper ${1})_COMPONENTS"
2805 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2806 )
2807 }
2808
2809 map 'disable_components $v' $LIBRARY_LIST
2810
2811 mkdir -p avbuild
2812 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2813 set >> $logfile
2814
2815 case "$toolchain" in
2816 *-asan)
2817 cc_default="${toolchain%-asan}"
2818 add_cflags -fsanitize=address
2819 add_ldflags -fsanitize=address
2820 ;;
2821 *-msan)
2822 cc_default="${toolchain%-msan}"
2823 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2824 add_ldflags -fsanitize=memory
2825 ;;
2826 *-tsan)
2827 cc_default="${toolchain%-tsan}"
2828 add_cflags -fsanitize=thread -fPIE
2829 add_ldflags -fsanitize=thread -pie
2830 case "$toolchain" in
2831 gcc-tsan)
2832 add_cflags -fPIC
2833 add_ldflags -fPIC
2834 ;;
2835 esac
2836 ;;
2837 *-usan)
2838 cc_default="${toolchain%-usan}"
2839 add_cflags -fsanitize=undefined
2840 add_ldflags -fsanitize=undefined
2841 case "$toolchain" in
2842 clang-usan)
2843 add_cflags -O1
2844 ;;
2845 esac
2846 ;;
2847 valgrind-*)
2848 target_exec_default="valgrind"
2849 case "$toolchain" in
2850 valgrind-massif)
2851 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2852 ;;
2853 valgrind-memcheck)
2854 target_exec_args="--track-origins=yes --leak-check=full"
2855 ;;
2856 esac
2857 ;;
2858 msvc)
2859 # Check whether the current MSVC version needs the C99 converter.
2860 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2861 # support enough of C99 to build libav. Default to the new
2862 # behaviour if the regexp was unable to match anything, since this
2863 # successfully parses the version number of existing supported
2864 # versions that require the converter (MSVC 2010 and 2012).
2865 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2866 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2867 cc_default="cl"
2868 else
2869 cc_default="c99wrap cl"
2870 fi
2871 ld_default="$source_path/compat/windows/mslink"
2872 nm_default="dumpbin -symbols"
2873 ar_default="lib"
2874 case "$arch" in
2875 arm*)
2876 as_default="armasm"
2877 ;;
2878 esac
2879 target_os_default="win32"
2880 # Use a relative path for TMPDIR. This makes sure all the
2881 # ffconf temp files are written with a relative path, avoiding
2882 # issues with msys/win32 path conversion for MSVC parameters
2883 # such as -Fo<file> or -out:<file>.
2884 TMPDIR=.
2885 ;;
2886 icl)
2887 cc_default="icl"
2888 ld_default="xilink"
2889 nm_default="dumpbin -symbols"
2890 ar_default="xilib"
2891 target_os_default="win32"
2892 TMPDIR=.
2893 ;;
2894 gcov)
2895 add_cflags -fprofile-arcs -ftest-coverage
2896 add_ldflags -fprofile-arcs -ftest-coverage
2897 ;;
2898 llvm-cov)
2899 add_cflags -fprofile-arcs -ftest-coverage
2900 add_ldflags --coverage
2901 ;;
2902 hardened)
2903 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2904 add_cflags -fno-strict-overflow -fstack-protector-all
2905 add_ldflags -Wl,-z,relro -Wl,-z,now
2906 ;;
2907 ?*)
2908 die "Unknown toolchain $toolchain"
2909 ;;
2910 esac
2911
2912 test -n "$cross_prefix" && enable cross_compile
2913
2914 if enabled cross_compile; then
2915 test -n "$arch" && test -n "$target_os" ||
2916 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2917 fi
2918
2919 ar_default="${cross_prefix}${ar_default}"
2920 cc_default="${cross_prefix}${cc_default}"
2921 occ_default="${cross_prefix}${occ_default}"
2922 nm_default="${cross_prefix}${nm_default}"
2923 pkg_config_default="${cross_prefix}${pkg_config_default}"
2924 ranlib="${cross_prefix}${ranlib}"
2925 strip="${cross_prefix}${strip}"
2926
2927 sysinclude_default="${sysroot}/usr/include"
2928
2929 set_default arch cc pkg_config sysinclude target_exec target_os
2930 enabled cross_compile || host_cc_default=$cc
2931 set_default host_cc
2932
2933 if ! $pkg_config --version >/dev/null 2>&1; then
2934 warn "$pkg_config not found, library detection may fail."
2935 pkg_config=false
2936 fi
2937
2938 exesuf() {
2939 case $1 in
2940 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2941 esac
2942 }
2943
2944 EXESUF=$(exesuf $target_os)
2945 HOSTEXESUF=$(exesuf $host_os)
2946
2947 # set temporary file name
2948 : ${TMPDIR:=$TEMPDIR}
2949 : ${TMPDIR:=$TMP}
2950 : ${TMPDIR:=/tmp}
2951
2952 if ! check_cmd mktemp -u XXXXXX; then
2953 # simple replacement for missing mktemp
2954 # NOT SAFE FOR GENERAL USE
2955 mktemp(){
2956 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2957 }
2958 fi
2959
2960 tmpfile(){
2961 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2962 (set -C; exec > $tmp) 2>/dev/null ||
2963 die "Unable to create temporary file in $TMPDIR."
2964 append TMPFILES $tmp
2965 eval $1=$tmp
2966 }
2967
2968 trap 'rm -f -- $TMPFILES' EXIT
2969
2970 tmpfile TMPASM .asm
2971 tmpfile TMPC .c
2972 tmpfile TMPE $EXESUF
2973 tmpfile TMPH .h
2974 tmpfile TMPO .o
2975 tmpfile TMPS .S
2976 tmpfile TMPSH .sh
2977 tmpfile TMPV .ver
2978
2979 unset -f mktemp
2980
2981 chmod +x $TMPE
2982
2983 # make sure we can execute files in $TMPDIR
2984 cat > $TMPSH 2>> $logfile <<EOF
2985 #! /bin/sh
2986 EOF
2987 chmod +x $TMPSH >> $logfile 2>&1
2988 if ! $TMPSH >> $logfile 2>&1; then
2989 cat <<EOF
2990 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2991 variable to another directory and make sure that it is not mounted noexec.
2992 EOF
2993 die "Sanity test failed."
2994 fi
2995
2996 armasm_flags(){
2997 for flag; do
2998 case $flag in
2999 # Filter out MSVC cl.exe options from cflags that shouldn't
3000 # be passed to gas-preprocessor
3001 -M[TD]*) ;;
3002 *) echo $flag ;;
3003 esac
3004 done
3005 }
3006
3007 ccc_flags(){
3008 for flag; do
3009 case $flag in
3010 -std=c99) echo -c99 ;;
3011 -mcpu=*) echo -arch ${flag#*=} ;;
3012 -mieee) echo -ieee ;;
3013 -O*|-fast) echo $flag ;;
3014 -fno-math-errno) echo -assume nomath_errno ;;
3015 -g) echo -g3 ;;
3016 -Wall) echo -msg_enable level2 ;;
3017 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3018 -Wl,*) echo $flag ;;
3019 -f*|-W*) ;;
3020 *) echo $flag ;;
3021 esac
3022 done
3023 }
3024
3025 cparser_flags(){
3026 for flag; do
3027 case $flag in
3028 -Wno-switch) echo -Wno-switch-enum ;;
3029 -Wno-format-zero-length) ;;
3030 -Wdisabled-optimization) ;;
3031 -Wno-pointer-sign) echo -Wno-other ;;
3032 *) echo $flag ;;
3033 esac
3034 done
3035 }
3036
3037 msvc_common_flags(){
3038 for flag; do
3039 case $flag in
3040 # In addition to specifying certain flags under the compiler
3041 # specific filters, they must be specified here as well or else the
3042 # generic catch all at the bottom will print the original flag.
3043 -Wall) ;;
3044 -std=c99) ;;
3045 # Common flags
3046 -fomit-frame-pointer) ;;
3047 -g) echo -Z7 ;;
3048 -fno-math-errno) ;;
3049 -fno-common) ;;
3050 -fno-signed-zeros) ;;
3051 -fPIC) ;;
3052 -mthumb) ;;
3053 -march=*) ;;
3054 -lz) echo zlib.lib ;;
3055 -lx264) echo libx264.lib ;;
3056 -l*) echo ${flag#-l}.lib ;;
3057 -L*) echo -libpath:${flag#-L} ;;
3058 *) echo $flag ;;
3059 esac
3060 done
3061 }
3062
3063 msvc_flags(){
3064 msvc_common_flags "$@"
3065 for flag; do
3066 case $flag in
3067 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3068 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3069 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3070 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3071 esac
3072 done
3073 }
3074
3075 icl_flags(){
3076 msvc_common_flags "$@"
3077 for flag; do
3078 case $flag in
3079 # Despite what Intel's documentation says -Wall, which is supported
3080 # on Windows, does enable remarks so disable them here.
3081 -Wall) echo $flag -Qdiag-disable:remark ;;
3082 -std=c99) echo -Qstd=c99 ;;
3083 esac
3084 done
3085 }
3086
3087 pgi_flags(){
3088 for flag; do
3089 case $flag in
3090 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3091 -fomit-frame-pointer) echo -Mnoframe ;;
3092 -g) echo -gopt ;;
3093 *) echo $flag ;;
3094 esac
3095 done
3096 }
3097
3098 suncc_flags(){
3099 for flag; do
3100 case $flag in
3101 -march=*|-mcpu=*)
3102 case "${flag#*=}" in
3103 native) echo -xtarget=native ;;
3104 v9|niagara) echo -xarch=sparc ;;
3105 ultrasparc) echo -xarch=sparcvis ;;
3106 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3107 i586|pentium) echo -xchip=pentium ;;
3108 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3109 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3110 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3111 pentium4*) echo -xtarget=pentium4 ;;
3112 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3113 *-sse3) echo -xarch=sse3 ;;
3114 core2) echo -xarch=ssse3 -xchip=core2 ;;
3115 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3116 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3117 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3118 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3119 k8|opteron|athlon64|athlon-fx)
3120 echo -xarch=sse2a ;;
3121 athlon*) echo -xarch=pentium_proa ;;
3122 esac
3123 ;;
3124 -std=c99) echo -xc99 ;;
3125 -fomit-frame-pointer) echo -xregs=frameptr ;;
3126 -fPIC) echo -KPIC -xcode=pic32 ;;
3127 -W*,*) echo $flag ;;
3128 -f*-*|-W*|-mimpure-text) ;;
3129 -shared) echo -G ;;
3130 *) echo $flag ;;
3131 esac
3132 done
3133 }
3134
3135 tms470_flags(){
3136 for flag; do
3137 case $flag in
3138 -march=*|-mcpu=*)
3139 case "${flag#*=}" in
3140 armv7-a|cortex-a*) echo -mv=7a8 ;;
3141 armv7-r|cortex-r*) echo -mv=7r4 ;;
3142 armv7-m|cortex-m*) echo -mv=7m3 ;;
3143 armv6*|arm11*) echo -mv=6 ;;
3144 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3145 echo -mv=5e ;;
3146 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3147 esac
3148 ;;
3149 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3150 -mfpu=vfp) echo --float_support=vfpv2 ;;
3151 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3152 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3153 -msoft-float) echo --float_support=vfplib ;;
3154 -O[0-3]|-mf=*) echo $flag ;;
3155 -g) echo -g -mn ;;
3156 -pds=*) echo $flag ;;
3157 -D*|-I*) echo $flag ;;
3158 --gcc|--abi=*) echo $flag ;;
3159 -me) echo $flag ;;
3160 esac
3161 done
3162 }
3163
3164 probe_cc(){
3165 pfx=$1
3166 _cc=$2
3167
3168 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3169 unset _ld_o _ldflags _ld_lib _ld_path
3170 unset _depflags _DEPCMD _DEPFLAGS
3171 _flags_filter=echo
3172
3173 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3174 _type=llvm_gcc
3175 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3176 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3177 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3178 _cflags_speed='-O3'
3179 _cflags_size='-Os'
3180 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3181 _type=gcc
3182 gcc_version=$($_cc --version | head -n1)
3183 gcc_basever=$($_cc -dumpversion)
3184 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3185 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3186 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3187 if ! $_cc -dumpversion | grep -q '^2\.'; then
3188 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3189 fi
3190 _cflags_speed='-O3'
3191 _cflags_size='-Os'
3192 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3193 _type=icc
3194 _ident=$($_cc --version | head -n1)
3195 _depflags='-MMD'
3196 _cflags_speed='-O3'
3197 _cflags_size='-Os'
3198 _cflags_noopt='-O1'
3199 elif $_cc -v 2>&1 | grep -q xlc; then
3200 _type=xlc
3201 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3202 _cflags_speed='-O5'
3203 _cflags_size='-O5 -qcompact'
3204 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3205 _type=ccc
3206 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3207 _DEPFLAGS='-M'
3208 _cflags_speed='-fast'
3209 _cflags_size='-O1'
3210 _flags_filter=ccc_flags
3211 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3212 test -d "$sysroot" || die "No valid sysroot specified."
3213 _type=armcc
3214 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3215 armcc_conf="$PWD/armcc.conf"
3216 $_cc --arm_linux_configure \
3217 --arm_linux_config_file="$armcc_conf" \
3218 --configure_sysroot="$sysroot" \
3219 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3220 die "Error creating armcc configuration file."
3221 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3222 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3223 as_default="${cross_prefix}gcc"
3224 _depflags='-MMD'
3225 _cflags_speed='-O3'
3226 _cflags_size='-Os'
3227 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3228 _type=tms470
3229 _ident=$($_cc -version | head -n1 | tr -s ' ')
3230 _flags='--gcc --abi=eabi -me'
3231 _cc_e='-ppl -fe=$@'
3232 _cc_o='-fe=$@'
3233 _depflags='-ppa -ppd=$(@:.o=.d)'
3234 _cflags_speed='-O3 -mf=5'
3235 _cflags_size='-O3 -mf=2'
3236 _flags_filter=tms470_flags
3237 elif $_cc -v 2>&1 | grep -q clang; then
3238 _type=clang
3239 _ident=$($_cc --version 2>/dev/null | head -n1)
3240 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3241 _cflags_speed='-O3'
3242 _cflags_size='-Os'
3243 elif $_cc -V 2>&1 | grep -q Sun; then
3244 _type=suncc
3245 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3246 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3247 _DEPFLAGS='-xM1 -xc99'
3248 _ldflags='-std=c99'
3249 _cflags_speed='-O5'
3250 _cflags_size='-O5 -xspace'
3251 _flags_filter=suncc_flags
3252 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3253 _type=pathscale
3254 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3255 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3256 _cflags_speed='-O2'
3257 _cflags_size='-Os'
3258 _flags_filter='filter_out -Wdisabled-optimization'
3259 elif $_cc -v 2>&1 | grep -q Open64; then
3260 _type=open64
3261 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3262 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3263 _cflags_speed='-O2'
3264 _cflags_size='-Os'
3265 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3266 elif $_cc -V 2>&1 | grep -q Portland; then
3267 _type=pgi
3268 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3269 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3270 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3271 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3272 _cflags_noopt="-O1"
3273 _flags_filter=pgi_flags
3274 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3275 _type=armasm
3276 _ident=$($_cc | head -n1)
3277 # 4509: "This form of conditional instruction is deprecated"
3278 _flags="-nologo -ignore 4509"
3279 _flags_filter=armasm_flags
3280 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3281 _type=msvc
3282 _ident=$($_cc 2>&1 | head -n1)
3283 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3284 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3285 _cflags_speed="-O2"
3286 _cflags_size="-O1"
3287 _cflags_noopt="-O1"
3288 if $_cc -nologo- 2>&1 | grep -q Linker; then
3289 _ld_o='-out:$@'
3290 else
3291 _ld_o='-Fe$@'
3292 fi
3293 _cc_o='-Fo$@'
3294 _cc_e='-P -Fi$@'
3295 _flags_filter=msvc_flags
3296 _ld_lib='lib%.a'
3297 _ld_path='-libpath:'
3298 _flags='-nologo'
3299 elif $_cc 2>&1 | grep -q Intel; then
3300 _type=icl
3301 _ident=$($_cc 2>&1 | head -n1)
3302 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3303 # Not only is O3 broken on 13.x+ but it is slower on all previous
3304 # versions (tested) as well.
3305 _cflags_speed="-O2"
3306 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3307 if $_cc 2>&1 | grep -q Linker; then
3308 _ld_o='-out:$@'
3309 else
3310 _ld_o='-Fe$@'
3311 fi
3312 _cc_o='-Fo$@'
3313 _cc_e='-P'
3314 _flags_filter=icl_flags
3315 _ld_lib='lib%.a'
3316 _ld_path='-libpath:'
3317 # -Qdiag-error to make icl error when seeing certain unknown arguments
3318 _flags='-nologo -Qdiag-error:4044,10157'
3319 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3320 # with MSVC which enables it by default.
3321 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3322 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3323 # lld can emulate multiple different linkers; in ms link.exe mode,
3324 # the -? parameter gives the help output which contains an identifyable
3325 # string, while it gives an error in other modes.
3326 _type=lld-link
3327 # The link.exe mode doesn't have a switch for getting the version,
3328 # but we can force it back to gnu mode and get the version from there.
3329 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3330 _ld_o='-out:$@'
3331 _flags_filter=msvc_flags
3332 _ld_lib='lib%.a'
3333 _ld_path='-libpath:'
3334 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3335 _type=cparser
3336 _ident=$($_cc --version | head -n1)
3337 _depflags='-MMD'
3338 _cflags_speed='-O4'
3339 _cflags_size='-O2'
3340 _flags_filter=cparser_flags
3341 fi
3342
3343 eval ${pfx}_type=\$_type
3344 eval ${pfx}_ident=\$_ident
3345 }
3346
3347 set_ccvars(){
3348 eval ${1}_C=\${_cc_c-\${${1}_C}}
3349 eval ${1}_E=\${_cc_e-\${${1}_E}}
3350 eval ${1}_O=\${_cc_o-\${${1}_O}}
3351
3352 if [ -n "$_depflags" ]; then
3353 eval ${1}_DEPFLAGS=\$_depflags
3354 else
3355 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3356 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3357 eval DEP${1}FLAGS=\$_flags
3358 fi
3359 }
3360
3361 probe_cc cc "$cc"
3362 cflags_filter=$_flags_filter
3363 cflags_speed=$_cflags_speed
3364 cflags_size=$_cflags_size
3365 cflags_noopt=$_cflags_noopt
3366 add_cflags $_flags $_cflags
3367 cc_ldflags=$_ldflags
3368 set_ccvars CC
3369
3370 probe_cc hostcc "$host_cc"
3371 host_cflags_filter=$_flags_filter
3372 add_host_cflags $_flags $_cflags
3373 set_ccvars HOSTCC
3374
3375 test -n "$cc_type" && enable $cc_type ||
3376 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3377
3378 : ${as_default:=$cc}
3379 : ${objcc_default:=$cc}
3380 : ${dep_cc_default:=$cc}
3381 : ${ld_default:=$cc}
3382 : ${host_ld_default:=$host_cc}
3383 set_default ar as objcc dep_cc ld host_ld
3384
3385 probe_cc as "$as"
3386 asflags_filter=$_flags_filter
3387 add_asflags $_flags $_cflags
3388 set_ccvars AS
3389
3390 probe_cc objcc "$objcc"
3391 objcflags_filter=$_flags_filter
3392 add_objcflags $_flags $_cflags
3393 set_ccvars OBJC
3394
3395 probe_cc ld "$ld"
3396 ldflags_filter=$_flags_filter
3397 add_ldflags $_flags $_ldflags
3398 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3399 LD_O=${_ld_o-$LD_O}
3400 LD_LIB=${_ld_lib-$LD_LIB}
3401 LD_PATH=${_ld_path-$LD_PATH}
3402
3403 probe_cc hostld "$host_ld"
3404 host_ldflags_filter=$_flags_filter
3405 add_host_ldflags $_flags $_ldflags
3406 HOSTLD_O=${_ld_o-$HOSTLD_O}
3407
3408 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3409 probe_cc depcc "$dep_cc"
3410 CCDEP=${_DEPCMD:-$DEPCMD}
3411 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3412 DEPCCFLAGS=$_flags
3413 fi
3414
3415 if $ar 2>&1 | grep -q Microsoft; then
3416 arflags="-nologo"
3417 ar_o='-out:$@'
3418 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3419 arflags="rq"
3420 ar_o='$@'
3421 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3422 arflags='-Xany -r -c'
3423 ar_o='$@'
3424 else
3425 arflags="rc"
3426 ar_o='$@'
3427 fi
3428
3429 add_cflags $extra_cflags
3430 add_objcflags $extra_objcflags
3431 add_asflags $extra_cflags
3432
3433 if test -n "$sysroot"; then
3434 case "$cc_type" in
3435 gcc|llvm_gcc|clang)
3436 add_cppflags --sysroot="$sysroot"
3437 add_ldflags --sysroot="$sysroot"
3438 ;;
3439 tms470)
3440 add_cppflags -I"$sysinclude"
3441 add_ldflags --sysroot="$sysroot"
3442 ;;
3443 esac
3444 fi
3445
3446 if test "$cpu" = host; then
3447 enabled cross_compile &&
3448 die "--cpu=host makes no sense when cross-compiling."
3449
3450 case "$cc_type" in
3451 gcc|llvm_gcc)
3452 check_native(){
3453 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3454 sed -n "/cc1.*$1=/{
3455 s/.*$1=\\([^ ]*\\).*/\\1/
3456 p
3457 q
3458 }" $TMPE
3459 }
3460 cpu=$(check_native -march || check_native -mcpu)
3461 ;;
3462 esac
3463
3464 test "${cpu:-host}" = host &&
3465 die "--cpu=host not supported with compiler $cc"
3466 fi
3467
3468 # Deal with common $arch aliases
3469 case "$arch" in
3470 aarch64|arm64)
3471 arch="aarch64"
3472 ;;
3473 arm*)
3474 arch="arm"
3475 ;;
3476 mips*|IP*)
3477 case "$arch" in
3478 *el)
3479 add_cppflags -EL
3480 add_ldflags -EL
3481 ;;
3482 *eb)
3483 add_cppflags -EB
3484 add_ldflags -EB
3485 ;;
3486 esac
3487 arch="mips"
3488 ;;
3489 parisc*|hppa*)
3490 arch="parisc"
3491 ;;
3492 "Power Macintosh"|ppc*|powerpc*)
3493 arch="ppc"
3494 ;;
3495 s390|s390x)
3496 arch="s390"
3497 ;;
3498 sh4|sh)
3499 arch="sh4"
3500 ;;
3501 sun4u|sparc*)
3502 arch="sparc"
3503 ;;
3504 tilegx|tile-gx)
3505 arch="tilegx"
3506 ;;
3507 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3508 arch="x86"
3509 ;;
3510 esac
3511
3512 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3513 enable $arch
3514
3515 # Add processor-specific flags
3516 if enabled aarch64; then
3517
3518 case $cpu in
3519 armv*)
3520 cpuflags="-march=$cpu"
3521 ;;
3522 *)
3523 cpuflags="-mcpu=$cpu"
3524 ;;
3525 esac
3526
3527 elif enabled alpha; then
3528
3529 cpuflags="-mcpu=$cpu"
3530
3531 elif enabled arm; then
3532
3533 check_arm_arch() {
3534 check_cpp_condition stddef.h \
3535 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3536 $cpuflags
3537 }
3538
3539 probe_arm_arch() {
3540 if check_arm_arch 4; then echo armv4
3541 elif check_arm_arch 4T; then echo armv4t
3542 elif check_arm_arch 5; then echo armv5
3543 elif check_arm_arch 5E; then echo armv5e
3544 elif check_arm_arch 5T; then echo armv5t
3545 elif check_arm_arch 5TE; then echo armv5te
3546 elif check_arm_arch 5TEJ; then echo armv5te
3547 elif check_arm_arch 6; then echo armv6
3548 elif check_arm_arch 6J; then echo armv6j
3549 elif check_arm_arch 6K; then echo armv6k
3550 elif check_arm_arch 6Z; then echo armv6z
3551 elif check_arm_arch 6ZK; then echo armv6zk
3552 elif check_arm_arch 6T2; then echo armv6t2
3553 elif check_arm_arch 7; then echo armv7
3554 elif check_arm_arch 7A 7_A; then echo armv7-a
3555 elif check_arm_arch 7S; then echo armv7-a
3556 elif check_arm_arch 7R 7_R; then echo armv7-r
3557 elif check_arm_arch 7M 7_M; then echo armv7-m
3558 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3559 elif check_arm_arch 8A 8_A; then echo armv8-a
3560 fi
3561 }
3562
3563 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3564
3565 case $cpu in
3566 armv*)
3567 cpuflags="-march=$cpu"
3568 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3569 ;;
3570 *)
3571 cpuflags="-mcpu=$cpu"
3572 case $cpu in
3573 cortex-a*) subarch=armv7a ;;
3574 cortex-r*) subarch=armv7r ;;
3575 cortex-m*) enable thumb; subarch=armv7m ;;
3576 arm11*) subarch=armv6 ;;
3577 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3578 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3579 *) subarch=$(probe_arm_arch) ;;
3580 esac
3581 ;;
3582 esac
3583
3584 case "$subarch" in
3585 armv5t*) enable fast_clz ;;
3586 armv[6-8]*) enable fast_clz fast_unaligned ;;
3587 esac
3588
3589 elif enabled avr32; then
3590
3591 case $cpu in
3592 ap7[02]0[0-2])
3593 subarch="avr32_ap"
3594 cpuflags="-mpart=$cpu"
3595 ;;
3596 ap)
3597 subarch="avr32_ap"
3598 cpuflags="-march=$cpu"
3599 ;;
3600 uc3[ab]*)
3601 subarch="avr32_uc"
3602 cpuflags="-mcpu=$cpu"
3603 ;;
3604 uc)
3605 subarch="avr32_uc"
3606 cpuflags="-march=$cpu"
3607 ;;
3608 esac
3609
3610 elif enabled bfin; then
3611
3612 cpuflags="-mcpu=$cpu"
3613
3614 elif enabled mips; then
3615
3616 cpuflags="-march=$cpu"
3617
3618 elif enabled ppc; then
3619
3620 disable ldbrx
3621
3622 case $(tolower $cpu) in
3623 601|ppc601|powerpc601)
3624 cpuflags="-mcpu=601"
3625 disable altivec
3626 ;;
3627 603*|ppc603*|powerpc603*)
3628 cpuflags="-mcpu=603"
3629 disable altivec
3630 ;;
3631 604*|ppc604*|powerpc604*)
3632 cpuflags="-mcpu=604"
3633 disable altivec
3634 ;;
3635 g3|75*|ppc75*|powerpc75*)
3636 cpuflags="-mcpu=750"
3637 disable altivec
3638 ;;
3639 g4|745*|ppc745*|powerpc745*)
3640 cpuflags="-mcpu=7450"
3641 disable vsx
3642 ;;
3643 74*|ppc74*|powerpc74*)
3644 cpuflags="-mcpu=7400"
3645 disable vsx
3646 ;;
3647 g5|970|ppc970|powerpc970)
3648 cpuflags="-mcpu=970"
3649 disable vsx
3650 ;;
3651 power[3-6]*)
3652 cpuflags="-mcpu=$cpu"
3653 disable vsx
3654 ;;
3655 power[7-8]*)
3656 cpuflags="-mcpu=$cpu"
3657 enable ldbrx
3658 ;;
3659 cell)
3660 cpuflags="-mcpu=cell"
3661 enable ldbrx
3662 disable vsx
3663 ;;
3664 e500mc)
3665 cpuflags="-mcpu=e500mc"
3666 disable altivec
3667 ;;
3668 e500v2)
3669 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3670 disable altivec
3671 disable dcbzl
3672 ;;
3673 e500)
3674 cpuflags="-mcpu=8540 -mhard-float"
3675 disable altivec
3676 disable dcbzl
3677 ;;
3678 esac
3679
3680 elif enabled sparc; then
3681
3682 case $cpu in
3683 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3684 cpuflags="-mcpu=$cpu"
3685 ;;
3686 ultrasparc*|niagara[234])
3687 cpuflags="-mcpu=$cpu"
3688 ;;
3689 esac
3690
3691 elif enabled x86; then
3692
3693 case $cpu in
3694 i[345]86|pentium)
3695 cpuflags="-march=$cpu"
3696 disable i686
3697 disable mmx
3698 ;;
3699 # targets that do NOT support nopl and conditional mov (cmov)
3700 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3701 cpuflags="-march=$cpu"
3702 disable i686
3703 ;;
3704 # targets that do support nopl and conditional mov (cmov)
3705 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3706 cpuflags="-march=$cpu"
3707 enable i686
3708 enable fast_cmov
3709 ;;
3710 # targets that do support conditional mov but on which it's slow
3711 pentium4|pentium4m|prescott|nocona)
3712 cpuflags="-march=$cpu"
3713 enable i686
3714 disable fast_cmov
3715 ;;
3716 esac
3717
3718 fi
3719
3720 if [ "$cpu" != generic ]; then
3721 add_cflags $cpuflags
3722 add_asflags $cpuflags
3723 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3724 fi
3725
3726 # compiler sanity check
3727 check_exec <<EOF
3728 int main(void){ return 0; }
3729 EOF
3730 if test "$?" != 0; then
3731 echo "$cc is unable to create an executable file."
3732 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3733 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3734 echo "Only do this if you know what cross compiling means."
3735 fi
3736 die "C compiler test failed."
3737 fi
3738
3739 add_cppflags -D_ISOC99_SOURCE
3740
3741 # some compilers silently accept -std=c11, so we also need to check that the
3742 # version macro is defined properly
3743 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3744 add_cflags -std=c11
3745 else
3746 check_cflags -std=c99
3747 fi
3748
3749 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3750 #include <stdlib.h>
3751 EOF
3752 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3753 #include <stdlib.h>
3754 EOF
3755
3756 add_host_cppflags -D_ISOC99_SOURCE
3757 check_host_cflags -std=c99
3758 check_host_cflags -Wall
3759 check_host_cflags -O3
3760
3761 check_64bit(){
3762 arch32=$1
3763 arch64=$2
3764 expr=$3
3765 check_code cc "" "int test[2*($expr) - 1]" &&
3766 subarch=$arch64 || subarch=$arch32
3767 }
3768
3769 case "$arch" in
3770 aarch64|alpha|ia64)
3771 spic=$shared
3772 ;;
3773 mips)
3774 check_64bit mips mips64 '_MIPS_SIM > 1'
3775 spic=$shared
3776 ;;
3777 parisc)
3778 check_64bit parisc parisc64 'sizeof(void *) > 4'
3779 spic=$shared
3780 ;;
3781 ppc)
3782 check_64bit ppc ppc64 'sizeof(void *) > 4'
3783 spic=$shared
3784 ;;
3785 s390)
3786 check_64bit s390 s390x 'sizeof(void *) > 4'
3787 spic=$shared
3788 ;;
3789 sparc)
3790 check_64bit sparc sparc64 'sizeof(void *) > 4'
3791 spic=$shared
3792 ;;
3793 x86)
3794 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3795 if test "$subarch" = "x86_64"; then
3796 spic=$shared
3797 fi
3798 ;;
3799 esac
3800
3801 enable $subarch
3802 enabled spic && enable_weak pic
3803
3804 # OS specific
3805 case $target_os in
3806 aix)
3807 SHFLAGS=-shared
3808 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3809 enabled shared && add_ldflags -Wl,-brtl
3810 ;;
3811 android)
3812 disable symver
3813 enable section_data_rel_ro
3814 SLIB_INSTALL_NAME='$(SLIBNAME)'
3815 SLIB_INSTALL_LINKS=
3816 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3817 ;;
3818 haiku)
3819 prefix_default="/boot/common"
3820 network_extralibs="-lnetwork"
3821 host_extralibs=
3822 ;;
3823 sunos)
3824 SHFLAGS='-shared -Wl,-h,$$(@F)'
3825 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3826 network_extralibs="-lsocket -lnsl"
3827 # When using suncc to build, the Solaris linker will mark
3828 # an executable with each instruction set encountered by
3829 # the Solaris assembler. As our libraries contain their own
3830 # guards for processor-specific code, instead suppress
3831 # generation of the HWCAPS ELF section on Solaris x86 only.
3832 enabled_all suncc x86 &&
3833 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3834 add_ldflags -Wl,-M,mapfile
3835 nm_default='nm -P -g'
3836 version_script='-M'
3837 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3838 ;;
3839 netbsd)
3840 disable symver
3841 oss_indev_extralibs="-lossaudio"
3842 oss_outdev_extralibs="-lossaudio"
3843 ;;
3844 openbsd|bitrig)
3845 disable symver
3846 SHFLAGS='-shared'
3847 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3848 SLIB_INSTALL_LINKS=
3849 oss_indev_extralibs="-lossaudio"
3850 oss_outdev_extralibs="-lossaudio"
3851 ;;
3852 dragonfly)
3853 disable symver
3854 ;;
3855 freebsd)
3856 ;;
3857 bsd/os)
3858 add_extralibs -lpoll -lgnugetopt
3859 ;;
3860 darwin)
3861 enabled ppc && add_asflags -force_cpusubtype_ALL
3862 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3863 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3864 add_ldflags -Wl,-dynamic,-search_paths_first
3865 SLIBSUF=".dylib"
3866 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3867 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3868 objformat="macho"
3869 enabled x86_64 && objformat="macho64"
3870 enabled_any pic shared ||
3871 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3872 check_header dispatch/dispatch.h &&
3873 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3874 ;;
3875 msys*)
3876 die "Native MSYS builds are discouraged, please use the MINGW environment."
3877 ;;
3878 mingw32*|mingw64*)
3879 if test $target_os = "mingw32ce"; then
3880 disable network
3881 else
3882 target_os=mingw32
3883 fi
3884 LIBTARGET=i386
3885 if enabled x86_64; then
3886 LIBTARGET="i386:x86-64"
3887 elif enabled arm; then
3888 LIBTARGET=arm-wince
3889 fi
3890 check_ldflags -Wl,--nxcompat
3891 check_ldflags -Wl,--dynamicbase
3892 shlibdir_default="$bindir_default"
3893 SLIBPREF=""
3894 SLIBSUF=".dll"
3895 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3896 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3897 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3898 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3899 SLIB_INSTALL_LINKS=
3900 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3901 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3902 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3903 objformat="win32"
3904 dlltool="${cross_prefix}dlltool"
3905 ranlib=:
3906 enable dos_paths
3907 ;;
3908 win32|win64)
3909 disable symver
3910 if enabled shared; then
3911 # Link to the import library instead of the normal static library
3912 # for shared libs.
3913 LD_LIB='%.lib'
3914 # Cannot build both shared and static libs with MSVC or icl.
3915 disable static
3916 fi
3917 shlibdir_default="$bindir_default"
3918 SLIBPREF=""
3919 SLIBSUF=".dll"
3920 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3921 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3922 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3923 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3924 SLIB_INSTALL_LINKS=
3925 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3926 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3927 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3928 objformat="win32"
3929 ranlib=:
3930 enable dos_paths
3931 ;;
3932 cygwin*)
3933 target_os=cygwin
3934 shlibdir_default="$bindir_default"
3935 SLIBPREF="cyg"
3936 SLIBSUF=".dll"
3937 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3938 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3939 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3940 SLIB_INSTALL_LINKS=
3941 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3942 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3943 objformat="win32"
3944 enable dos_paths
3945 ;;
3946 *-dos|freedos|opendos)
3947 network_extralibs="-lsocket"
3948 objformat="coff"
3949 enable dos_paths
3950 add_cppflags -U__STRICT_ANSI__
3951 ;;
3952 linux)
3953 enable dv1394
3954 enable section_data_rel_ro
3955 ;;
3956 irix*)
3957 target_os=irix
3958 ranlib="echo ignoring ranlib"
3959 ;;
3960 os/2*)
3961 ln_s="cp -f"
3962 objformat="aout"
3963 add_cppflags -D_GNU_SOURCE
3964 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3965 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3966 LIBSUF="_s.a"
3967 SLIBPREF=""
3968 SLIBSUF=".dll"
3969 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3970 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3971 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3972 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3973 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3974 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3975 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3976 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3977 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3978 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3979 enable dos_paths
3980 ;;
3981 gnu/kfreebsd)
3982 add_cppflags -D_BSD_SOURCE
3983 ;;
3984 gnu)
3985 ;;
3986 qnx)
3987 add_cppflags -D_QNX_SOURCE
3988 network_extralibs="-lsocket"
3989 ;;
3990 symbian)
3991 SLIBSUF=".dll"
3992 enable dos_paths
3993 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3994 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3995 add_ldflags -Wl,--target1-abs,--no-undefined \
3996 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3997 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3998 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3999 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4000 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4001 ;;
4002 osf1)
4003 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4004 ;;
4005 minix)
4006 ;;
4007 none)
4008 ;;
4009 *)
4010 die "Unknown OS '$target_os'."
4011 ;;
4012 esac
4013
4014 # determine libc flavour
4015
4016 probe_libc(){
4017 pfx=$1
4018 pfx_no_=${pfx%_}
4019 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4020 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4021 eval ${pfx}libc_type=uclibc
4022 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4023 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4024 eval ${pfx}libc_type=glibc
4025 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4026 # MinGW headers can be installed on Cygwin, so check for newlib first.
4027 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4028 eval ${pfx}libc_type=newlib
4029 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4030 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4031 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4032 eval ${pfx}libc_type=mingw64
4033 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4034 eval test \$${pfx_no_}cc_type = "gcc" &&
4035 add_${pfx}cppflags -D__printf__=__gnu_printf__
4036 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4037 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4038 eval ${pfx}libc_type=mingw32
4039 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4040 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4041 die "ERROR: MinGW32 runtime version must be >= 3.15."
4042 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4043 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4044 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4045 eval test \$${pfx_no_}cc_type = "gcc" &&
4046 add_${pfx}cppflags -D__printf__=__gnu_printf__
4047 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4048 eval ${pfx}libc_type=msvcrt
4049 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4050 if [ "$pfx" = host_ ]; then
4051 add_host_cppflags -Dsnprintf=_snprintf
4052 else
4053 add_compat strtod.o strtod=avpriv_strtod
4054 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4055 _snprintf=avpriv_snprintf \
4056 vsnprintf=avpriv_vsnprintf
4057 fi
4058 fi
4059 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4060 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4061 # 0x601 by default unless something else is set by the user.
4062 # This can easily lead to us detecting functions only present
4063 # in such new versions and producing binaries requiring windows 7.0.
4064 # Therefore explicitly set the default to XP unless the user has
4065 # set something else on the command line.
4066 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4067 # family. For these cases, configure is free to use any functions
4068 # found in the SDK headers by default. (Alternatively, we could force
4069 # _WIN32_WINNT to 0x0602 in that case.)
4070 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4071 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4072 #ifdef WINAPI_FAMILY
4073 #include <winapifamily.h>
4074 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4075 #error not desktop
4076 #endif
4077 #endif
4078 EOF
4079 if [ "$pfx" = "" ]; then
4080 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4081 fi
4082 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4083 eval ${pfx}libc_type=klibc
4084 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4085 eval ${pfx}libc_type=bionic
4086 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4087 eval ${pfx}libc_type=solaris
4088 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4089 else
4090 eval ${pfx}libc_type=default
4091 add_${pfx}cppflags -D_DEFAULT_SOURCE
4092 fi
4093 }
4094
4095 probe_libc
4096 test -n "$libc_type" && enable libc_$libc_type
4097 probe_libc host_
4098 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4099
4100 case $libc_type in
4101 bionic)
4102 add_compat strtod.o strtod=avpriv_strtod
4103 ;;
4104 esac
4105
4106 # hacks for compiler/libc/os combinations
4107
4108 if enabled_all tms470 libc_glibc; then
4109 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4110 add_cppflags -D__USER_LABEL_PREFIX__=
4111 add_cppflags -D__builtin_memset=memset
4112 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4113 add_cflags -pds=48 # incompatible redefinition of macro
4114 fi
4115
4116 if enabled_all ccc libc_glibc; then
4117 add_ldflags -Wl,-z,now # calls to libots crash without this
4118 fi
4119
4120 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4121 add_cppflags '-I\$(SRC_PATH)/compat/float'
4122
4123 esc(){
4124 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4125 }
4126
4127 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4128
4129 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4130
4131 set_default $PATHS_LIST
4132 set_default nm
4133
4134 # we need to build at least one lib type
4135 if ! enabled_any static shared; then
4136 cat <<EOF
4137 At least one library type must be built.
4138 Specify --enable-static to build the static libraries or --enable-shared to
4139 build the shared libraries as well. To only build the shared libraries specify
4140 --disable-static in addition to --enable-shared.
4141 EOF
4142 exit 1
4143 fi
4144
4145 disabled optimizations || check_cflags -fomit-frame-pointer
4146
4147 enable_weak_pic() {
4148 disabled pic && return
4149 enable pic
4150 add_cppflags -DPIC
4151 case "$target_os" in
4152 mingw*|cygwin*)
4153 ;;
4154 *)
4155 add_cflags -fPIC
4156 ;;
4157 esac
4158 add_asflags -fPIC
4159 }
4160
4161 enabled pic && enable_weak_pic
4162
4163 check_cc <<EOF || die "Symbol mangling check failed."
4164 int ff_extern;
4165 EOF
4166 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4167 extern_prefix=${sym%%ff_extern*}
4168
4169 check_cc <<EOF && enable_weak inline_asm
4170 void foo(void) { __asm__ volatile ("" ::); }
4171 EOF
4172
4173 _restrict=
4174 for restrict_keyword in restrict __restrict__ __restrict; do
4175 check_cc <<EOF && _restrict=$restrict_keyword && break
4176 void foo(char * $restrict_keyword p);
4177 EOF
4178 done
4179
4180 check_cc <<EOF && enable pragma_deprecated
4181 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4182 EOF
4183
4184 check_cc <<EOF && enable attribute_packed
4185 struct { int x; } __attribute__((packed)) x;
4186 EOF
4187
4188 check_cc <<EOF && enable attribute_may_alias
4189 union { int x; } __attribute__((may_alias)) x;
4190 EOF
4191
4192 check_cc <<EOF || die "endian test failed"
4193 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4194 EOF
4195 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4196
4197 check_gas() {
4198 log "check_gas using '$as' as AS"
4199 # :vararg is used on aarch64, arm and ppc altivec
4200 check_as <<EOF || return 1
4201 .macro m n, y:vararg=0
4202 \n: .int \y
4203 .endm
4204 m x
4205 EOF
4206 # .altmacro is only used in arm asm
4207 ! enabled arm || check_as <<EOF || return 1
4208 .altmacro
4209 EOF
4210 enable gnu_as
4211 return 0
4212 }
4213
4214 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4215 nogas=:
4216 enabled_any arm aarch64 && nogas=die
4217 enabled_all ppc altivec && nogas=warn
4218 as_noop=-v
4219
4220 case $as_type in
4221 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4222 gcc) gaspp_as_type=gas ;;
4223 *) gaspp_as_type=$as_type ;;
4224 esac
4225
4226 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4227
4228 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4229 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4230
4231 if ! check_gas ; then
4232 as=${gas:=$as}
4233 check_gas || \
4234 $nogas "GNU assembler not found, install/update gas-preprocessor"
4235 fi
4236
4237 check_as <<EOF && enable as_func
4238 .func test
4239 .endfunc
4240 EOF
4241 fi
4242
4243 check_inline_asm inline_asm_labels '"1:\n"'
4244
4245 if enabled aarch64; then
4246 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4247 # internal assembler in clang 3.3 does not support this instruction
4248 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4249 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4250
4251 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4252
4253 elif enabled alpha; then
4254
4255 check_cflags -mieee
4256
4257 elif enabled arm; then
4258
4259 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4260 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4261 enabled thumb && check_cflags -mthumb || check_cflags -marm
4262
4263 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4264 enable vfp_args
4265 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4266 enable vfp_args
4267 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4268 case "${cross_prefix:-$cc}" in
4269 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4270 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4271 __asm__ (".eabi_attribute 28, 1");
4272 int main(void) { return 0; }
4273 EOF
4274 esac
4275 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4276 fi
4277
4278 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4279 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4280 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4281 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4282 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4283 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4284
4285 [ $target_os = linux ] || [ $target_os = android ] ||
4286 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4287 $ARCH_EXT_LIST_ARM
4288
4289 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4290
4291 check_as <<EOF && enable as_dn_directive
4292 ra .dn d0.i16
4293 .unreq ra
4294 EOF
4295 check_as <<EOF && enable as_fpu_directive
4296 .fpu neon
4297 EOF
4298
4299 # llvm's integrated assembler supports .object_arch from llvm 3.5
4300 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4301 .object_arch armv4
4302 EOF
4303
4304 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4305
4306 elif enabled mips; then
4307
4308 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4309
4310 # make sure that only an instruction set is enabled
4311 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4312
4313 if enabled mips64; then
4314 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4315 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4316 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4317 else
4318 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4319 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4320 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4321 fi
4322
4323 elif enabled parisc; then
4324
4325 if enabled gcc; then
4326 case $($cc -dumpversion) in
4327 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4328 esac
4329 fi
4330
4331 elif enabled ppc; then
4332
4333 enable local_aligned_8 local_aligned_16 local_aligned_32
4334
4335 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4336 check_inline_asm ibm_asm '"add 0, 0, 0"'
4337 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4338 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4339
4340 # AltiVec flags: The FSF version of GCC differs from the Apple version
4341 if enabled altivec; then
4342 check_cflags -maltivec -mabi=altivec &&
4343 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4344 check_cflags -faltivec
4345
4346 # check if our compiler supports Motorola AltiVec C API
4347 check_cc <<EOF || disable altivec
4348 $inc_altivec_h
4349 int main(void) {
4350 vector signed int v1 = (vector signed int) { 0 };
4351 vector signed int v2 = (vector signed int) { 1 };
4352 v1 = vec_add(v1, v2);
4353 return 0;
4354 }
4355 EOF
4356
4357 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4358 fi
4359
4360 if enabled vsx; then
4361 check_cflags -mvsx &&
4362 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4363 fi
4364
4365 if enabled power8; then
4366 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4367 fi
4368
4369 elif enabled x86; then
4370
4371 check_builtin rdtsc intrin.h "__rdtsc()"
4372 check_builtin mm_empty mmintrin.h "_mm_empty()"
4373