configure: MMAL-related decoders should depend on, not select, mmal
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-bzlib bzip2 compression [autodetect]
192 --enable-frei0r video filtering plugins
193 --enable-gnutls crypto
194 --enable-libbs2b Bauer stereophonic-to-binaural DSP
195 --enable-libcdio audio CD input
196 --enable-libdc1394 IEEE 1394/Firewire camera input
197 --enable-libdcadec DCA audio decoding
198 --enable-libfaac AAC audio encoding
199 --enable-libfdk-aac AAC audio encoding/decoding
200 --enable-libfontconfig font configuration and management
201 --enable-libfreetype font rendering
202 --enable-libgsm GSM audio encoding/decoding
203 --enable-libhdcd HDCD decoding filter
204 --enable-libilbc ILBC audio encoding/decoding
205 --enable-libkvazaar HEVC video encoding
206 --enable-libmp3lame MP3 audio encoding
207 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
208 --enable-libopencore-amrwb AMR-WB audio decoding
209 --enable-libopencv computer vision
210 --enable-libopenh264 H.264 video encoding/decoding
211 --enable-libopenjpeg JPEG 2000 image encoding/decoding
212 --enable-libopus Opus audio encoding/decoding
213 --enable-libpulse Pulseaudio sound server
214 --enable-librtmp RTMP streaming
215 --enable-libschroedinger Dirac video encoding/decoding
216 --enable-libsnappy snappy compression
217 --enable-libspeex Speex audio encoding/decoding
218 --enable-libtheora Theora video encoding/decoding
219 --enable-libtwolame MP2 audio encoding
220 --enable-libvo-aacenc AAC audio encoding
221 --enable-libvo-amrwbenc AMR-WB audio encoding
222 --enable-libvorbis Vorbis audio encoding/decoding
223 --enable-libvpx VP* video encoding/decoding
224 --enable-libwavpack Wavpack audio encoding/decoding
225 --enable-libwebp WebP image encoding/decoding
226 --enable-libx264 H.264 video encoding
227 --enable-libx265 HEVC video encoding
228 --enable-libxavs Chinese AVS video encoding
229 --enable-libxcb X window system protocol communication
230 --enable-libxcb-shm X11 shm communication [auto]
231 --enable-libxcb-xfixes X11 mouse rendering [auto]
232 --enable-libxvid MPEG-4 ASP video encoding
233 --enable-openssl crypto
234 --enable-zlib compression [autodetect]
235
236 The following libraries provide various hardware acceleration features:
237 --enable-cuda Nvidia CUDA (dynamically linked)
238 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
239 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
240 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
241 --enable-libnpp Nvidia CUDA processing
242 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
243 --enable-nvenc Nvidia video encoding
244 --enable-omx OpenMAX IL
245 --enable-omx-rpi OpenMAX IL for Raspberry Pi
246 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
247 --enable-vda Apple Video Decode Acceleration [auto]
248 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
249
250 Toolchain options:
251 --arch=ARCH select architecture [$arch]
252 --cpu=CPU select the minimum required CPU (affects
253 instruction selection, may crash on older CPUs)
254 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
255 --enable-cross-compile assume a cross-compiler is used
256 --sysroot=PATH root of cross-build tree
257 --sysinclude=PATH location of cross-build system headers
258 --target-os=OS compiler targets OS [$target_os]
259 --target-exec=CMD command to run executables on target
260 --target-path=DIR path to view of build directory on target
261 --target-samples=DIR path to samples directory on target
262 --toolchain=NAME set tool defaults according to NAME
263 --nm=NM use nm tool
264 --ar=AR use archive tool AR [$ar_default]
265 --as=AS use assembler AS [$as_default]
266 --cc=CC use C compiler CC [$cc_default]
267 --objcc=OCC use ObjC compiler OCC [$cc_default]
268 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
269 --ld=LD use linker LD
270 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
271 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
272 --host-cc=HOSTCC use host C compiler HOSTCC
273 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
274 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
275 --host-ld=HOSTLD use host linker HOSTLD
276 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
277 --host-libs=HLIBS use libs HLIBS when linking for host
278 --host-os=OS compiler host OS [$target_os]
279 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
280 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
281 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
282 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --build-suffix=SUFFIX library name suffix []
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
342 --disable-random
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
347 NAME (default 0.5).
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
351
352 NOTE: Object files are built at the place where configure is launched.
353 EOF
354 exit 0
355 }
356
357 quotes='""'
358
359 log(){
360 echo "$@" >> $logfile
361 }
362
363 log_file(){
364 log BEGIN $1
365 i=1
366 while read line; do
367 printf '%5s %s\n' "${i}" "${line}"
368 i=$(($i+1))
369 done < $1 >> $logfile
370 log END $1
371 }
372
373 echolog(){
374 log "$@"
375 echo "$@"
376 }
377
378 warn(){
379 log "WARNING: $*"
380 WARNINGS="${WARNINGS}WARNING: $*\n"
381 }
382
383 die(){
384 echolog "$@"
385 cat <<EOF
386
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
390 EOF
391 if disabled logging; then
392 cat <<EOF
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
395 EOF
396 else
397 cat <<EOF
398 Include the log file "$logfile" produced by configure as this will help
399 solving the problem.
400 EOF
401 fi
402 exit 1
403 }
404
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
406 toupper(){
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
408 }
409
410 tolower(){
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
412 }
413
414 c_escape(){
415 echo "$*" | sed 's/["\\]/\\\0/g'
416 }
417
418 sh_quote(){
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
421 echo "$v"
422 }
423
424 cleanws(){
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
426 }
427
428 filter(){
429 pat=$1
430 shift
431 for v; do
432 eval "case $v in $pat) echo $v ;; esac"
433 done
434 }
435
436 filter_out(){
437 pat=$1
438 shift
439 for v; do
440 eval "case $v in $pat) ;; *) echo $v ;; esac"
441 done
442 }
443
444 map(){
445 m=$1
446 shift
447 for v; do eval $m; done
448 }
449
450 add_suffix(){
451 suffix=$1
452 shift
453 for v; do echo ${v}${suffix}; done
454 }
455
456 set_all(){
457 value=$1
458 shift
459 for var in $*; do
460 eval $var=$value
461 done
462 }
463
464 set_weak(){
465 value=$1
466 shift
467 for var; do
468 eval : \${$var:=$value}
469 done
470 }
471
472 sanitize_var_name(){
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
474 }
475
476 set_safe(){
477 var=$1
478 shift
479 eval $(sanitize_var_name "$var")='$*'
480 }
481
482 get_safe(){
483 eval echo \$$(sanitize_var_name "$1")
484 }
485
486 pushvar(){
487 for pvar in $*; do
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
491 done
492 }
493
494 popvar(){
495 for pvar in $*; do
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
502 done
503 }
504
505 enable(){
506 set_all yes $*
507 }
508
509 disable(){
510 set_all no $*
511 }
512
513 enable_weak(){
514 set_weak yes $*
515 }
516
517 disable_weak(){
518 set_weak no $*
519 }
520
521 enable_safe(){
522 for var; do
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524 done
525 }
526
527 disable_safe(){
528 for var; do
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 do_enable_deep(){
534 for var; do
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
538 pushvar var sgs
539 enable_deep $sel
540 popvar sgs
541 enable_deep_weak $sgs
542 popvar var
543 done
544 }
545
546 enable_deep(){
547 do_enable_deep $*
548 enable $*
549 }
550
551 enable_deep_weak(){
552 for var; do
553 disabled $var && continue
554 pushvar var
555 do_enable_deep $var
556 popvar var
557 enable_weak $var
558 done
559 }
560
561 enabled(){
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
564 }
565
566 disabled(){
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
569 }
570
571 enabled_all(){
572 for opt; do
573 enabled $opt || return 1
574 done
575 }
576
577 disabled_all(){
578 for opt; do
579 disabled $opt || return 1
580 done
581 }
582
583 enabled_any(){
584 for opt; do
585 enabled $opt && return 0
586 done
587 }
588
589 disabled_any(){
590 for opt; do
591 disabled $opt && return 0
592 done
593 return 1
594 }
595
596 set_default(){
597 for opt; do
598 eval : \${$opt:=\$${opt}_default}
599 done
600 }
601
602 is_in(){
603 value=$1
604 shift
605 for var in $*; do
606 [ $var = $value ] && return 0
607 done
608 return 1
609 }
610
611 do_check_deps(){
612 for cfg; do
613 cfg="${cfg#!}"
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
617 append allopts $cfg
618
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
625
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
635
636 if enabled $cfg; then
637 enable_deep $dep_sel
638 enable_deep_weak $dep_sgs
639 fi
640
641 disable ${cfg}_checking
642 done
643 }
644
645 check_deps(){
646 unset allopts
647
648 do_check_deps "$@"
649
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
654 done
655 }
656
657 print_config(){
658 pfx=$1
659 files=$2
660 shift 2
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
663 {
664 c = \"$pfx\" toupper(\$1);
665 v = \$2;
666 sub(/yes/, 1, v);
667 sub(/no/, 0, v);
668 for (f in files) {
669 file = files[f];
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
677 }
678 }
679 }"
680 }
681
682 print_enabled(){
683 suf=$1
684 shift
685 for v; do
686 enabled $v && printf "%s\n" ${v%$suf}
687 done
688 }
689
690 append(){
691 var=$1
692 shift
693 eval "$var=\"\$$var $*\""
694 }
695
696 prepend(){
697 var=$1
698 shift
699 eval "$var=\"$* \$$var\""
700 }
701
702 unique(){
703 var=$1
704 uniq_list=""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
707 done
708 eval "$var=\"${uniq_list}\""
709 }
710
711 add_cppflags(){
712 append CPPFLAGS "$@"
713 }
714
715 add_cflags(){
716 append CFLAGS $($cflags_filter "$@")
717 }
718
719 add_asflags(){
720 append ASFLAGS $($asflags_filter "$@")
721 }
722
723 add_objcflags(){
724 append OBJCFLAGS $($objcflags_filter "$@")
725 }
726
727 add_ldflags(){
728 append LDFLAGS $($ldflags_filter "$@")
729 }
730
731 add_ldexeflags(){
732 append LDEXEFLAGS $($ldflags_filter "$@")
733 }
734
735 add_stripflags(){
736 append STRIPFLAGS "$@"
737 }
738
739 add_extralibs(){
740 prepend extralibs $($ldflags_filter "$@")
741 }
742
743 add_host_cppflags(){
744 append host_cppflags "$@"
745 }
746
747 add_host_cflags(){
748 append host_cflags $($host_cflags_filter "$@")
749 }
750
751 add_host_ldflags(){
752 append host_ldflags $($host_ldflags_filter "$@")
753 }
754
755 add_compat(){
756 append compat_objs $1
757 shift
758 map 'add_cppflags -D$v' "$@"
759 }
760
761 check_cmd(){
762 log "$@"
763 "$@" >> $logfile 2>&1
764 }
765
766 cc_o(){
767 eval printf '%s\\n' $CC_O
768 }
769
770 cc_e(){
771 eval printf '%s\\n' $CC_E
772 }
773
774 check_cc(){
775 log check_cc "$@"
776 cat > $TMPC
777 log_file $TMPC
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
779 }
780
781 check_objcc(){
782 log check_objcc "$@"
783 cat > $TMPC
784 log_file $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
786 }
787
788 check_cpp(){
789 log check_cpp "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793 }
794
795 as_o(){
796 eval printf '%s\\n' $AS_O
797 }
798
799 check_as(){
800 log check_as "$@"
801 cat > $TMPS
802 log_file $TMPS
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804 }
805
806 check_inline_asm(){
807 log check_inline_asm "$@"
808 name="$1"
809 code="$2"
810 shift 2
811 disable $name
812 check_cc "$@" <<EOF && enable $name
813 void foo(void){ __asm__ volatile($code); }
814 EOF
815 }
816
817 check_insn(){
818 log check_insn "$@"
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
821 }
822
823 check_yasm(){
824 log check_yasm "$@"
825 echo "$1" > $TMPS
826 log_file $TMPS
827 shift 1
828 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
829 }
830
831 ld_o(){
832 eval printf '%s\\n' $LD_O
833 }
834
835 check_ld(){
836 log check_ld "$@"
837 flags=$(filter_out '-l*' "$@")
838 libs=$(filter '-l*' "$@")
839 check_cc $($cflags_filter $flags) || return
840 flags=$($ldflags_filter $flags)
841 libs=$($ldflags_filter $libs)
842 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
843 }
844
845 print_include(){
846 hdr=$1
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
850 }
851
852 check_code(){
853 log check_code "$@"
854 check=$1
855 headers=$2
856 code=$3
857 shift 3
858 {
859 for hdr in $headers; do
860 print_include $hdr
861 done
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
864 }
865
866 check_cppflags(){
867 log check_cppflags "$@"
868 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
869 int x;
870 EOF
871 }
872
873 test_cflags(){
874 log test_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_cc "$@" <<EOF
877 int x;
878 EOF
879 }
880
881 check_cflags(){
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
884 }
885
886 test_objcflags(){
887 log test_objcflags "$@"
888 set -- $($objcflags_filter "$@")
889 check_objcc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_objcflags(){
895 log check_objcflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
897 }
898
899 test_ldflags(){
900 log test_ldflags "$@"
901 check_ld "$@" <<EOF
902 int main(void){ return 0; }
903 EOF
904 }
905
906 check_ldflags(){
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
909 }
910
911 test_stripflags(){
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
914 check_cc <<EOF
915 int main(void) { return 0; }
916 EOF
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 }
919
920 check_stripflags(){
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
923 }
924
925 check_header(){
926 log check_header "$@"
927 header=$1
928 shift
929 disable_safe $header
930 check_cpp "$@" <<EOF && enable_safe $header
931 #include <$header>
932 int x;
933 EOF
934 }
935
936 check_func(){
937 log check_func "$@"
938 func=$1
939 shift
940 disable $func
941 check_ld "$@" <<EOF && enable $func
942 extern int $func();
943 int main(void){ $func(); }
944 EOF
945 }
946
947 check_mathfunc(){
948 log check_mathfunc "$@"
949 func=$1
950 narg=$2
951 shift 2
952 test $narg = 2 && args="f, g" || args="f"
953 disable $func
954 check_ld "$@" <<EOF && enable $func
955 #include <math.h>
956 float foo(float f, float g) { return $func($args); }
957 int main(void){ return 0; }
958 EOF
959 }
960
961 check_func_headers(){
962 log check_func_headers "$@"
963 headers=$1
964 funcs=$2
965 shift 2
966 {
967 for hdr in $headers; do
968 print_include $hdr
969 done
970 for func in $funcs; do
971 echo "long check_$func(void) { return (long) $func; }"
972 done
973 echo "int main(void) { return 0; }"
974 } | check_ld "$@" && enable $funcs && enable_safe $headers
975 }
976
977 check_cpp_condition(){
978 log check_cpp_condition "$@"
979 header=$1
980 condition=$2
981 shift 2
982 check_cpp "$@" <<EOF
983 #include <$header>
984 #if !($condition)
985 #error "unsatisfied condition: $condition"
986 #endif
987 EOF
988 }
989
990 test_cflags_cpp(){
991 log test_cflags_cpp "$@"
992 flags=$1
993 condition=$2
994 shift 2
995 set -- $($cflags_filter "$flags")
996 check_cpp "$@" <<EOF
997 #if !($condition)
998 #error "unsatisfied condition: $condition"
999 #endif
1000 EOF
1001 }
1002
1003 check_lib(){
1004 log check_lib "$@"
1005 headers="$1"
1006 funcs="$2"
1007 shift 2
1008 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1009 }
1010
1011 check_pkg_config(){
1012 log check_pkg_config "$@"
1013 pkg="$1"
1014 headers="$2"
1015 funcs="$3"
1016 shift 3
1017 check_cmd $pkg_config --exists --print-errors $pkg || return
1018 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1019 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1020 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1021 set_safe "${pkg}_cflags" $pkg_cflags &&
1022 set_safe "${pkg}_libs" $pkg_libs
1023 }
1024
1025 check_exec(){
1026 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1027 }
1028
1029 check_exec_crash(){
1030 log check_exec_crash "$@"
1031 code=$(cat)
1032
1033 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1034 # are safe but may not be available everywhere. Thus we use
1035 # raise(SIGTERM) instead. The check is run in a subshell so we
1036 # can redirect the "Terminated" message from the shell. SIGBUS
1037 # is not defined by standard C so it is used conditionally.
1038
1039 (check_exec "$@") >> $logfile 2>&1 <<EOF
1040 #include <signal.h>
1041 static void sighandler(int sig){
1042 raise(SIGTERM);
1043 }
1044 int foo(void){
1045 $code
1046 }
1047 int (*func_ptr)(void) = foo;
1048 int main(void){
1049 signal(SIGILL, sighandler);
1050 signal(SIGFPE, sighandler);
1051 signal(SIGSEGV, sighandler);
1052 #ifdef SIGBUS
1053 signal(SIGBUS, sighandler);
1054 #endif
1055 return func_ptr();
1056 }
1057 EOF
1058 }
1059
1060 check_type(){
1061 log check_type "$@"
1062 headers=$1
1063 type=$2
1064 shift 2
1065 disable_safe "$type"
1066 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1067 }
1068
1069 check_struct(){
1070 log check_struct "$@"
1071 headers=$1
1072 struct=$2
1073 member=$3
1074 shift 3
1075 disable_safe "${struct}_${member}"
1076 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1077 enable_safe "${struct}_${member}"
1078 }
1079
1080 check_builtin(){
1081 log check_builtin "$@"
1082 name=$1
1083 headers=$2
1084 builtin=$3
1085 shift 3
1086 disable "$name"
1087 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1088 }
1089
1090 check_compile_assert(){
1091 log check_compile_assert "$@"
1092 name=$1
1093 headers=$2
1094 condition=$3
1095 shift 3
1096 disable "$name"
1097 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1098 }
1099
1100 require(){
1101 log require "$@"
1102 name="$1"
1103 headers="$2"
1104 func="$3"
1105 shift 3
1106 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1107 }
1108
1109 require_pkg_config(){
1110 log require_pkg_config "$@"
1111 pkg="$1"
1112 check_pkg_config "$@" || die "ERROR: $pkg not found"
1113 add_cflags $(get_safe "${pkg}_cflags")
1114 add_extralibs $(get_safe "${pkg}_libs")
1115 }
1116
1117 hostcc_e(){
1118 eval printf '%s\\n' $HOSTCC_E
1119 }
1120
1121 hostcc_o(){
1122 eval printf '%s\\n' $HOSTCC_O
1123 }
1124
1125 check_host_cc(){
1126 log check_host_cc "$@"
1127 cat > $TMPC
1128 log_file $TMPC
1129 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1130 }
1131
1132 check_host_cpp(){
1133 log check_host_cpp "$@"
1134 cat > $TMPC
1135 log_file $TMPC
1136 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1137 }
1138
1139 check_host_cppflags(){
1140 log check_host_cppflags "$@"
1141 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1142 int x;
1143 EOF
1144 }
1145
1146 check_host_cflags(){
1147 log check_host_cflags "$@"
1148 set -- $($host_cflags_filter "$@")
1149 check_host_cc "$@" <<EOF && append host_cflags "$@"
1150 int x;
1151 EOF
1152 }
1153
1154 check_host_cpp_condition(){
1155 log check_host_cpp_condition "$@"
1156 header=$1
1157 condition=$2
1158 shift 2
1159 check_host_cpp "$@" <<EOF
1160 #include <$header>
1161 #if !($condition)
1162 #error "unsatisfied condition: $condition"
1163 #endif
1164 EOF
1165 }
1166
1167 apply(){
1168 file=$1
1169 shift
1170 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1171 }
1172
1173 cp_if_changed(){
1174 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1175 mkdir -p "$(dirname $2)"
1176 $cp_f "$1" "$2"
1177 }
1178
1179 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1180 # system-dependent things.
1181
1182 AVCODEC_COMPONENTS="
1183 bsfs
1184 decoders
1185 encoders
1186 hwaccels
1187 parsers
1188 "
1189
1190 AVDEVICE_COMPONENTS="
1191 indevs
1192 outdevs
1193 "
1194 AVFILTER_COMPONENTS="
1195 filters
1196 "
1197 AVFORMAT_COMPONENTS="
1198 demuxers
1199 muxers
1200 protocols
1201 "
1202
1203 AVRESAMPLE_COMPONENTS=""
1204 AVUTIL_COMPONENTS=""
1205
1206 COMPONENT_LIST="
1207 $AVCODEC_COMPONENTS
1208 $AVDEVICE_COMPONENTS
1209 $AVFILTER_COMPONENTS
1210 $AVFORMAT_COMPONENTS
1211 $AVRESAMPLE_COMPONENTS
1212 $AVUTIL_COMPONENTS
1213 "
1214
1215 EXAMPLE_LIST="
1216 decode_audio_example
1217 decode_video_example
1218 encode_audio_example
1219 encode_video_example
1220 filter_audio_example
1221 metadata_example
1222 output_example
1223 qsvdec_example
1224 transcode_aac_example
1225 "
1226
1227 HWACCEL_LIBRARY_NONFREE_LIST="
1228 cuda
1229 libnpp
1230 "
1231 HWACCEL_LIBRARY_LIST="
1232 $HWACCEL_LIBRARY_NONFREE_LIST
1233 d3d11va
1234 dxva2
1235 libmfx
1236 mmal
1237 nvenc
1238 omx
1239 vaapi
1240 vda
1241 vdpau
1242 "
1243
1244 EXTERNAL_LIBRARY_GPL_LIST="
1245 libcdio
1246 libx264
1247 libx265
1248 libxavs
1249 libxvid
1250 "
1251
1252 EXTERNAL_LIBRARY_NONFREE_LIST="
1253 libfaac
1254 libfdk_aac
1255 openssl
1256 "
1257
1258 EXTERNAL_LIBRARY_VERSION3_LIST="
1259 libopencore_amrnb
1260 libopencore_amrwb
1261 libvo_aacenc
1262 libvo_amrwbenc
1263 "
1264
1265 EXTERNAL_LIBRARY_LIST="
1266 $EXTERNAL_LIBRARY_GPL_LIST
1267 $EXTERNAL_LIBRARY_NONFREE_LIST
1268 $EXTERNAL_LIBRARY_VERSION3_LIST
1269 avisynth
1270 bzlib
1271 frei0r
1272 gnutls
1273 libbs2b
1274 libdc1394
1275 libdcadec
1276 libfontconfig
1277 libfreetype
1278 libgsm
1279 libhdcd
1280 libilbc
1281 libkvazaar
1282 libmp3lame
1283 libopencv
1284 libopenh264
1285 libopenjpeg
1286 libopus
1287 libpulse
1288 librtmp
1289 libschroedinger
1290 libsnappy
1291 libspeex
1292 libtheora
1293 libtwolame
1294 libvorbis
1295 libvpx
1296 libwavpack
1297 libwebp
1298 libxcb
1299 libxcb_shm
1300 libxcb_xfixes
1301 zlib
1302 "
1303
1304 FEATURE_LIST="
1305 gray
1306 hardcoded_tables
1307 omx_rpi
1308 runtime_cpudetect
1309 safe_bitstream_reader
1310 shared
1311 small
1312 sram
1313 static
1314 swscale_alpha
1315 "
1316
1317 LIBRARY_LIST="
1318 avcodec
1319 avdevice
1320 avfilter
1321 avformat
1322 avresample
1323 avutil
1324 swscale
1325 "
1326
1327 LICENSE_LIST="
1328 gpl
1329 nonfree
1330 version3
1331 "
1332
1333 PROGRAM_LIST="
1334 avconv
1335 avplay
1336 avprobe
1337 "
1338
1339 SUBSYSTEM_LIST="
1340 dct
1341 doc
1342 error_resilience
1343 faan
1344 fft
1345 lsp
1346 lzo
1347 mdct
1348 network
1349 rdft
1350 "
1351
1352 CONFIG_LIST="
1353 $COMPONENT_LIST
1354 $EXAMPLE_LIST
1355 $EXTERNAL_LIBRARY_LIST
1356 $HWACCEL_LIBRARY_LIST
1357 $FEATURE_LIST
1358 $LICENSE_LIST
1359 $LIBRARY_LIST
1360 $PROGRAM_LIST
1361 $SUBSYSTEM_LIST
1362 neon_clobber_test
1363 pic
1364 pod2man
1365 texi2html
1366 thumb
1367 valgrind_backtrace
1368 xmm_clobber_test
1369 "
1370
1371 THREADS_LIST="
1372 pthreads
1373 w32threads
1374 "
1375
1376 ATOMICS_LIST="
1377 atomics_gcc
1378 atomics_suncc
1379 atomics_win32
1380 "
1381
1382 ARCH_LIST="
1383 aarch64
1384 alpha
1385 arm
1386 avr32
1387 avr32_ap
1388 avr32_uc
1389 bfin
1390 ia64
1391 m68k
1392 mips
1393 mips64
1394 parisc
1395 ppc
1396 ppc64
1397 s390
1398 sh4
1399 sparc
1400 sparc64
1401 tilegx
1402 tilepro
1403 tomi
1404 x86
1405 x86_32
1406 x86_64
1407 "
1408
1409 ARCH_EXT_LIST_ARM="
1410 armv5te
1411 armv6
1412 armv6t2
1413 armv8
1414 neon
1415 vfp
1416 vfpv3
1417 "
1418
1419 ARCH_EXT_LIST_X86_SIMD="
1420 amd3dnow
1421 amd3dnowext
1422 avx
1423 avx2
1424 fma3
1425 fma4
1426 mmx
1427 mmxext
1428 sse
1429 sse2
1430 sse3
1431 sse4
1432 sse42
1433 ssse3
1434 xop
1435 "
1436
1437 ARCH_EXT_LIST_PPC="
1438 altivec
1439 dcbzl
1440 ldbrx
1441 power8
1442 ppc4xx
1443 vsx
1444 "
1445
1446 ARCH_EXT_LIST_X86="
1447 $ARCH_EXT_LIST_X86_SIMD
1448 cpunop
1449 i686
1450 "
1451
1452 ARCH_EXT_LIST_MIPS="
1453 loongson
1454 mips32r1
1455 mips64r1
1456 mips32r2
1457 mips64r2
1458 mips32r6
1459 mips64r6
1460 "
1461
1462 ARCH_EXT_LIST="
1463 $ARCH_EXT_LIST_ARM
1464 $ARCH_EXT_LIST_MIPS
1465 $ARCH_EXT_LIST_PPC
1466 $ARCH_EXT_LIST_X86
1467 vis
1468 "
1469
1470 ARCH_FEATURES="
1471 aligned_stack
1472 fast_64bit
1473 fast_clz
1474 fast_cmov
1475 local_aligned_8
1476 local_aligned_16
1477 local_aligned_32
1478 simd_align_16
1479 simd_align_32
1480 "
1481
1482 BUILTIN_LIST="
1483 atomic_cas_ptr
1484 machine_rw_barrier
1485 MemoryBarrier
1486 mm_empty
1487 rdtsc
1488 sem_timedwait
1489 sync_val_compare_and_swap
1490 "
1491 HAVE_LIST_CMDLINE="
1492 inline_asm
1493 symver
1494 yasm
1495 "
1496
1497 HAVE_LIST_PUB="
1498 bigendian
1499 fast_unaligned
1500 "
1501
1502 HEADERS_LIST="
1503 AVFoundation_AVFoundation_h
1504 alsa_asoundlib_h
1505 altivec_h
1506 arpa_inet_h
1507 cdio_paranoia_h
1508 cdio_paranoia_paranoia_h
1509 dispatch_dispatch_h
1510 dev_bktr_ioctl_bt848_h
1511 dev_bktr_ioctl_meteor_h
1512 dev_ic_bt8xx_h
1513 dev_video_bktr_ioctl_bt848_h
1514 dev_video_meteor_ioctl_meteor_h
1515 direct_h
1516 dlfcn_h
1517 d3d11_h
1518 dxva_h
1519 gsm_h
1520 io_h
1521 mach_mach_time_h
1522 machine_ioctl_bt848_h
1523 machine_ioctl_meteor_h
1524 malloc_h
1525 poll_h
1526 sndio_h
1527 soundcard_h
1528 stdatomic_h
1529 sys_mman_h
1530 sys_param_h
1531 sys_resource_h
1532 sys_select_h
1533 sys_soundcard_h
1534 sys_time_h
1535 sys_un_h
1536 sys_videoio_h
1537 unistd_h
1538 valgrind_valgrind_h
1539 windows_h
1540 winsock2_h
1541 "
1542
1543 INTRINSICS_LIST="
1544 intrinsics_neon
1545 "
1546
1547 MATH_FUNCS="
1548 atanf
1549 atan2f
1550 cbrtf
1551 cosf
1552 exp2
1553 exp2f
1554 expf
1555 isinf
1556 isnan
1557 ldexpf
1558 llrint
1559 llrintf
1560 log2
1561 log2f
1562 log10f
1563 lrint
1564 lrintf
1565 powf
1566 rint
1567 round
1568 roundf
1569 sinf
1570 trunc
1571 truncf
1572 "
1573
1574 SYSTEM_FUNCS="
1575 aligned_malloc
1576 clock_gettime
1577 closesocket
1578 CommandLineToArgvW
1579 CoTaskMemFree
1580 CryptGenRandom
1581 dlopen
1582 fcntl
1583 flt_lim
1584 fork
1585 getaddrinfo
1586 gethrtime
1587 getopt
1588 GetProcessAffinityMask
1589 GetProcessMemoryInfo
1590 GetProcessTimes
1591 getrusage
1592 GetSystemTimeAsFileTime
1593 gettimeofday
1594 gmtime_r
1595 inet_aton
1596 isatty
1597 jack_port_get_latency_range
1598 LoadLibrary
1599 localtime_r
1600 mach_absolute_time
1601 MapViewOfFile
1602 memalign
1603 mkstemp
1604 mmap
1605 mprotect
1606 nanosleep
1607 posix_memalign
1608 sched_getaffinity
1609 SetConsoleTextAttribute
1610 setmode
1611 setrlimit
1612 Sleep
1613 strerror_r
1614 sysconf
1615 sysctl
1616 usleep
1617 VirtualAlloc
1618 "
1619
1620 TOOLCHAIN_FEATURES="
1621 as_dn_directive
1622 as_fpu_directive
1623 as_func
1624 as_object_arch
1625 asm_mod_q
1626 attribute_may_alias
1627 attribute_packed
1628 ebp_available
1629 ebx_available
1630 gnu_as
1631 ibm_asm
1632 inline_asm_labels
1633 pragma_deprecated
1634 symver_asm_label
1635 symver_gnu_asm
1636 vfp_args
1637 xform_asm
1638 xmm_clobbers
1639 "
1640
1641 TYPES_LIST="
1642 CONDITION_VARIABLE_Ptr
1643 socklen_t
1644 struct_addrinfo
1645 struct_group_source_req
1646 struct_ip_mreq_source
1647 struct_ipv6_mreq
1648 struct_pollfd
1649 struct_rusage_ru_maxrss
1650 struct_sockaddr_in6
1651 struct_sockaddr_sa_len
1652 struct_sockaddr_storage
1653 struct_v4l2_frmivalenum_discrete
1654 "
1655
1656 HAVE_LIST="
1657 $ARCH_EXT_LIST
1658 $(add_suffix _external $ARCH_EXT_LIST)
1659 $(add_suffix _inline $ARCH_EXT_LIST)
1660 $ARCH_FEATURES
1661 $BUILTIN_LIST
1662 $HAVE_LIST_CMDLINE
1663 $HAVE_LIST_PUB
1664 $HEADERS_LIST
1665 $INTRINSICS_LIST
1666 $MATH_FUNCS
1667 $SYSTEM_FUNCS
1668 $THREADS_LIST
1669 $TOOLCHAIN_FEATURES
1670 $TYPES_LIST
1671 dos_paths
1672 dxva2_lib
1673 libc_msvcrt
1674 libdc1394_1
1675 libdc1394_2
1676 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1677 sdl
1678 section_data_rel_ro
1679 threads
1680 vaapi_drm
1681 vaapi_x11
1682 vdpau_x11
1683 xlib
1684 "
1685
1686 # options emitted with CONFIG_ prefix but not available on the command line
1687 CONFIG_EXTRA="
1688 aandcttables
1689 ac3dsp
1690 audio_frame_queue
1691 audiodsp
1692 blockdsp
1693 bswapdsp
1694 cabac
1695 dirac_parse
1696 dvprofile
1697 faandct
1698 faanidct
1699 fdctdsp
1700 flacdsp
1701 fmtconvert
1702 g722dsp
1703 gmp
1704 golomb
1705 gplv3
1706 h263dsp
1707 h264chroma
1708 h264dsp
1709 h264parse
1710 h264pred
1711 h264qpel
1712 hpeldsp
1713 huffman
1714 huffyuvdsp
1715 huffyuvencdsp
1716 idctdsp
1717 iirfilter
1718 imdct15
1719 intrax8
1720 iso_media
1721 ividsp
1722 jpegtables
1723 libx262
1724 lgplv3
1725 lpc
1726 lzf
1727 me_cmp
1728 mpeg_er
1729 mpegaudio
1730 mpegaudiodsp
1731 mpegvideo
1732 mpegvideoenc
1733 mss34dsp
1734 pixblockdsp
1735 qpeldsp
1736 qsv
1737 qsvdec
1738 qsvenc
1739 rangecoder
1740 riffdec
1741 riffenc
1742 rtpdec
1743 rtpenc_chain
1744 rv34dsp
1745 sinewin
1746 snappy
1747 srtp
1748 startcode
1749 texturedsp
1750 texturedspenc
1751 tpeldsp
1752 vaapi_encode
1753 vc1dsp
1754 videodsp
1755 vp3dsp
1756 vp56dsp
1757 vp8dsp
1758 wma_freqs
1759 wmv2dsp
1760 "
1761
1762 CMDLINE_SELECT="
1763 $ARCH_EXT_LIST
1764 $CONFIG_LIST
1765 $HAVE_LIST_CMDLINE
1766 $THREADS_LIST
1767 asm
1768 cross_compile
1769 debug
1770 extra_warnings
1771 logging
1772 lto
1773 optimizations
1774 rpath
1775 "
1776
1777 PATHS_LIST="
1778 bindir
1779 datadir
1780 docdir
1781 incdir
1782 libdir
1783 mandir
1784 prefix
1785 shlibdir
1786 "
1787
1788 CMDLINE_SET="
1789 $PATHS_LIST
1790 ar
1791 arch
1792 as
1793 build_suffix
1794 cc
1795 objcc
1796 cpu
1797 cross_prefix
1798 custom_allocator
1799 dep_cc
1800 env
1801 extra_version
1802 host_cc
1803 host_cflags
1804 host_ld
1805 host_ldflags
1806 host_libs
1807 host_os
1808 ld
1809 logfile
1810 malloc_prefix
1811 nm
1812 optflags
1813 pkg_config
1814 pkg_config_flags
1815 random_seed
1816 samples
1817 sysinclude
1818 sysroot
1819 target_exec
1820 target_os
1821 target_path
1822 target_samples
1823 toolchain
1824 "
1825
1826 CMDLINE_APPEND="
1827 extra_cflags
1828 extra_objcflags
1829 host_cppflags
1830 "
1831
1832 # code dependency declarations
1833
1834 # architecture extensions
1835
1836 armv5te_deps="arm"
1837 armv6_deps="arm"
1838 armv6t2_deps="arm"
1839 armv8_deps="aarch64"
1840 neon_deps_any="aarch64 arm"
1841 intrinsics_neon_deps="neon"
1842 vfp_deps_any="aarch64 arm"
1843 vfpv3_deps="vfp"
1844
1845 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1846
1847 altivec_deps="ppc"
1848 ppc4xx_deps="ppc"
1849 vsx_deps="altivec"
1850 power8_deps="vsx"
1851
1852 cpunop_deps="i686"
1853 x86_64_select="i686"
1854 x86_64_suggest="fast_cmov"
1855
1856 amd3dnow_deps="mmx"
1857 amd3dnowext_deps="amd3dnow"
1858 i686_deps="x86"
1859 mmx_deps="x86"
1860 mmxext_deps="mmx"
1861 sse_deps="mmxext"
1862 sse2_deps="sse"
1863 sse3_deps="sse2"
1864 ssse3_deps="sse3"
1865 sse4_deps="ssse3"
1866 sse42_deps="sse4"
1867 avx_deps="sse42"
1868 xop_deps="avx"
1869 fma3_deps="avx"
1870 fma4_deps="avx"
1871 avx2_deps="avx"
1872
1873 mmx_external_deps="yasm"
1874 mmx_inline_deps="inline_asm"
1875 mmx_suggest="mmx_external mmx_inline"
1876
1877 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1878 eval dep=\$${ext}_deps
1879 eval ${ext}_external_deps='"${dep}_external"'
1880 eval ${ext}_inline_deps='"${dep}_inline"'
1881 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1882 done
1883
1884 aligned_stack_if_any="aarch64 ppc x86"
1885 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1886 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1887 fast_unaligned_if_any="aarch64 ppc x86"
1888 simd_align_16_if_any="altivec neon sse"
1889 simd_align_32_if_any="avx"
1890
1891 # system capabilities
1892 symver_if_any="symver_asm_label symver_gnu_asm"
1893 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1894
1895 # threading support
1896 atomics_gcc_if="sync_val_compare_and_swap"
1897 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1898 atomics_win32_if="MemoryBarrier"
1899 atomics_native_if_any="$ATOMICS_LIST"
1900 w32threads_deps="atomics_native"
1901 threads_if_any="$THREADS_LIST"
1902
1903 # subsystems
1904 dct_select="rdft"
1905 dirac_parse_select="golomb"
1906 error_resilience_select="me_cmp"
1907 faandct_deps="faan fdctdsp"
1908 faanidct_deps="faan idctdsp"
1909 h264dsp_select="startcode"
1910 intrax8_select="blockdsp idctdsp"
1911 mdct_select="fft"
1912 rdft_select="fft"
1913 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1914 mpeg_er_select="error_resilience"
1915 mpegaudio_select="mpegaudiodsp"
1916 mpegaudiodsp_select="dct"
1917 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1918 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1919 vc1dsp_select="h264chroma qpeldsp startcode"
1920
1921 # decoders / encoders
1922 aac_decoder_select="imdct15 mdct sinewin"
1923 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1924 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1925 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1926 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1927 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1928 adpcm_g722_decoder_select="g722dsp"
1929 adpcm_g722_encoder_select="g722dsp"
1930 aic_decoder_select="golomb idctdsp"
1931 alac_encoder_select="lpc"
1932 als_decoder_select="bswapdsp"
1933 amrnb_decoder_select="lsp"
1934 amrwb_decoder_select="lsp"
1935 amv_decoder_select="sp5x_decoder"
1936 ape_decoder_select="bswapdsp"
1937 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1938 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1939 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1940 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1941 atrac1_decoder_select="mdct sinewin"
1942 atrac3_decoder_select="mdct"
1943 atrac3p_decoder_select="mdct sinewin"
1944 bink_decoder_select="blockdsp hpeldsp"
1945 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1946 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1947 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1948 cllc_decoder_select="bswapdsp"
1949 comfortnoise_encoder_select="lpc"
1950 cook_decoder_select="audiodsp mdct sinewin"
1951 cscd_decoder_select="lzo"
1952 cscd_decoder_suggest="zlib"
1953 dca_decoder_select="fmtconvert mdct"
1954 dds_decoder_select="texturedsp"
1955 dnxhd_decoder_select="blockdsp idctdsp"
1956 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1957 dvvideo_decoder_select="dvprofile idctdsp"
1958 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1959 dxa_decoder_deps="zlib"
1960 dxv_decoder_select="lzf texturedsp"
1961 eac3_decoder_select="ac3_decoder"
1962 eac3_encoder_select="ac3_encoder"
1963 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1964 eatgq_decoder_select="aandcttables idctdsp"
1965 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1966 exr_decoder_deps="zlib"
1967 ffv1_decoder_select="golomb rangecoder"
1968 ffv1_encoder_select="rangecoder"
1969 ffvhuff_decoder_select="huffyuv_decoder"
1970 ffvhuff_encoder_select="huffyuv_encoder"
1971 fic_decoder_select="golomb"
1972 flac_decoder_select="flacdsp golomb"
1973 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1974 flashsv_decoder_deps="zlib"
1975 flashsv_encoder_deps="zlib"
1976 flashsv2_decoder_deps="zlib"
1977 flv_decoder_select="h263_decoder"
1978 flv_encoder_select="h263_encoder"
1979 fourxm_decoder_select="blockdsp bswapdsp"
1980 fraps_decoder_select="bswapdsp huffman"
1981 g2m_decoder_deps="zlib"
1982 g2m_decoder_select="blockdsp idctdsp jpegtables"
1983 h261_decoder_select="mpeg_er mpegvideo"
1984 h261_encoder_select="aandcttables mpegvideoenc"
1985 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1986 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1987 h263i_decoder_select="h263_decoder"
1988 h263p_encoder_select="h263_encoder"
1989 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1990 h264_decoder_suggest="error_resilience"
1991 hap_decoder_select="snappy texturedsp"
1992 hap_encoder_deps="libsnappy"
1993 hap_encoder_select="texturedspenc"
1994 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1995 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1996 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1997 iac_decoder_select="imc_decoder"
1998 imc_decoder_select="bswapdsp fft mdct sinewin"
1999 indeo3_decoder_select="hpeldsp"
2000 indeo4_decoder_select="ividsp"
2001 indeo5_decoder_select="ividsp"
2002 interplay_video_decoder_select="hpeldsp"
2003 jpegls_decoder_select="golomb mjpeg_decoder"
2004 jpegls_encoder_select="golomb"
2005 jv_decoder_select="blockdsp"
2006 lagarith_decoder_select="huffyuvdsp"
2007 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2008 loco_decoder_select="golomb"
2009 magicyuv_decoder_select="huffyuvdsp"
2010 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2011 metasound_decoder_select="lsp mdct sinewin"
2012 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2013 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2014 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2015 mjpegb_decoder_select="mjpeg_decoder"
2016 mlp_decoder_select="mlp_parser"
2017 motionpixels_decoder_select="bswapdsp"
2018 mp1_decoder_select="mpegaudio"
2019 mp1float_decoder_select="mpegaudio"
2020 mp2_decoder_select="mpegaudio"
2021 mp2float_decoder_select="mpegaudio"
2022 mp3_decoder_select="mpegaudio"
2023 mp3adu_decoder_select="mpegaudio"
2024 mp3adufloat_decoder_select="mpegaudio"
2025 mp3float_decoder_select="mpegaudio"
2026 mp3on4_decoder_select="mpegaudio"
2027 mp3on4float_decoder_select="mpegaudio"
2028 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2029 mpc8_decoder_select="mpegaudiodsp"
2030 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2031 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2032 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2033 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2034 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2035 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2036 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2037 mpeg4_encoder_select="h263_encoder"
2038 msa1_decoder_select="mss34dsp"
2039 msmpeg4v1_decoder_select="h263_decoder"
2040 msmpeg4v2_decoder_select="h263_decoder"
2041 msmpeg4v2_encoder_select="h263_encoder"
2042 msmpeg4v3_decoder_select="h263_decoder"
2043 msmpeg4v3_encoder_select="h263_encoder"
2044 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2045 mts2_decoder_select="mss34dsp"
2046 mxpeg_decoder_select="mjpeg_decoder"
2047 nellymoser_decoder_select="mdct sinewin"
2048 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2049 nuv_decoder_select="idctdsp lzo"
2050 on2avc_decoder_select="mdct"
2051 opus_decoder_deps="avresample"
2052 opus_decoder_select="imdct15"
2053 png_decoder_deps="zlib"
2054 png_encoder_deps="zlib"
2055 png_encoder_select="huffyuvencdsp"
2056 prores_decoder_select="idctdsp"
2057 prores_encoder_select="fdctdsp"
2058 qcelp_decoder_select="lsp"
2059 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2060 ra_144_encoder_select="audio_frame_queue lpc"
2061 ralf_decoder_select="golomb"
2062 rscc_decoder_deps="zlib"
2063 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2064 rv10_encoder_select="h263_encoder"
2065 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2066 rv20_encoder_select="h263_encoder"
2067 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2068 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2069 screenpresso_decoder_deps="zlib"
2070 shorten_decoder_select="golomb"
2071 sipr_decoder_select="lsp"
2072 sp5x_decoder_select="mjpeg_decoder"
2073 svq1_decoder_select="hpeldsp"
2074 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2075 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2076 svq3_decoder_suggest="zlib"
2077 tak_decoder_select="audiodsp"
2078 tdsc_decoder_deps="zlib"
2079 tdsc_decoder_select="mjpeg_decoder"
2080 theora_decoder_select="vp3_decoder"
2081 thp_decoder_select="mjpeg_decoder"
2082 tiff_decoder_suggest="zlib"
2083 tiff_encoder_suggest="zlib"
2084 truehd_decoder_select="mlp_decoder"
2085 truemotion2_decoder_select="bswapdsp"
2086 truespeech_decoder_select="bswapdsp"
2087 tscc_decoder_deps="zlib"
2088 txd_decoder_select="texturedsp"
2089 twinvq_decoder_select="mdct lsp sinewin"
2090 utvideo_decoder_select="bswapdsp"
2091 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2092 vble_decoder_select="huffyuvdsp"
2093 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2094 vc1image_decoder_select="vc1_decoder"
2095 vorbis_decoder_select="mdct"
2096 vorbis_encoder_select="mdct"
2097 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2098 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2099 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2100 vp6a_decoder_select="vp6_decoder"
2101 vp6f_decoder_select="vp6_decoder"
2102 vp7_decoder_select="h264pred videodsp vp8dsp"
2103 vp8_decoder_select="h264pred videodsp vp8dsp"
2104 vp9_decoder_select="videodsp"
2105 webp_decoder_select="vp8_decoder"
2106 wmapro_decoder_select="mdct sinewin wma_freqs"
2107 wmav1_decoder_select="mdct sinewin wma_freqs"
2108 wmav1_encoder_select="mdct sinewin wma_freqs"
2109 wmav2_decoder_select="mdct sinewin wma_freqs"
2110 wmav2_encoder_select="mdct sinewin wma_freqs"
2111 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2112 wmv1_decoder_select="h263_decoder"
2113 wmv1_encoder_select="h263_encoder"
2114 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2115 wmv2_encoder_select="h263_encoder wmv2dsp"
2116 wmv3_decoder_select="vc1_decoder"
2117 wmv3image_decoder_select="wmv3_decoder"
2118 zerocodec_decoder_deps="zlib"
2119 zlib_decoder_deps="zlib"
2120 zlib_encoder_deps="zlib"
2121 zmbv_decoder_deps="zlib"
2122 zmbv_encoder_deps="zlib"
2123
2124 # hardware accelerators
2125 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2126 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2127 vaapi_deps="va_va_h"
2128 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2129 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2130 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2131
2132 h263_vaapi_hwaccel_deps="vaapi"
2133 h263_vaapi_hwaccel_select="h263_decoder"
2134 h264_d3d11va_hwaccel_deps="d3d11va"
2135 h264_d3d11va_hwaccel_select="h264_decoder"
2136 h264_dxva2_hwaccel_deps="dxva2"
2137 h264_dxva2_hwaccel_select="h264_decoder"
2138 h264_mmal_decoder_deps="mmal"
2139 h264_mmal_hwaccel_deps="mmal"
2140 h264_omx_encoder_deps="omx"
2141 h264_qsv_hwaccel_deps="libmfx"
2142 h264_vaapi_hwaccel_deps="vaapi"
2143 h264_vaapi_hwaccel_select="h264_decoder"
2144 h264_vda_hwaccel_deps="vda"
2145 h264_vda_hwaccel_select="h264_decoder"
2146 h264_vda_old_hwaccel_deps="vda"
2147 h264_vda_old_hwaccel_select="h264_decoder"
2148 h264_vdpau_hwaccel_deps="vdpau"
2149 h264_vdpau_hwaccel_select="h264_decoder"
2150 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2151 hevc_d3d11va_hwaccel_select="hevc_decoder"
2152 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2153 hevc_dxva2_hwaccel_select="hevc_decoder"
2154 hevc_qsv_hwaccel_deps="libmfx"
2155 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2156 hevc_vdpau_hwaccel_select="hevc_decoder"
2157 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2158 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2159 mpeg1_vdpau_hwaccel_deps="vdpau"
2160 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2161 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2162 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2163 mpeg2_dxva2_hwaccel_deps="dxva2"
2164 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2165 mpeg2_mmal_decoder_deps="mmal"
2166 mpeg2_mmal_hwaccel_deps="mmal"
2167 mpeg2_qsv_hwaccel_deps="libmfx"
2168 mpeg2_vaapi_hwaccel_deps="vaapi"
2169 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2170 mpeg2_vdpau_hwaccel_deps="vdpau"
2171 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2172 mpeg4_omx_encoder_deps="omx"
2173 mpeg4_vaapi_hwaccel_deps="vaapi"
2174 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2175 mpeg4_vdpau_hwaccel_deps="vdpau"
2176 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2177 vc1_d3d11va_hwaccel_deps="d3d11va"
2178 vc1_d3d11va_hwaccel_select="vc1_decoder"
2179 vc1_dxva2_hwaccel_deps="dxva2"
2180 vc1_dxva2_hwaccel_select="vc1_decoder"
2181 vc1_mmal_decoder_deps="mmal"
2182 vc1_mmal_hwaccel_deps="mmal"
2183 vc1_qsv_hwaccel_deps="libmfx"
2184 vc1_vaapi_hwaccel_deps="vaapi"
2185 vc1_vaapi_hwaccel_select="vc1_decoder"
2186 vc1_vdpau_hwaccel_deps="vdpau"
2187 vc1_vdpau_hwaccel_select="vc1_decoder"
2188 vp8_qsv_hwaccel_deps="libmfx"
2189 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2190 vp8_vaapi_hwaccel_select="vp8_decoder"
2191 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2192 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2193 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2194 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2195
2196 # hardware-accelerated codecs
2197 nvenc_deps_any="dlopen LoadLibrary"
2198 nvenc_extralibs='$ldl'
2199 omx_deps="dlopen pthreads"
2200 omx_extralibs='$ldl'
2201 qsvdec_select="qsv"
2202 qsvenc_select="qsv"
2203 vaapi_encode_deps="vaapi"
2204
2205 hwupload_cuda_filter_deps="cuda"
2206 scale_npp_filter_deps="cuda libnpp"
2207
2208 h264_nvenc_encoder_deps="nvenc"
2209 h264_qsv_decoder_deps="libmfx"
2210 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2211 h264_qsv_encoder_deps="libmfx"
2212 h264_qsv_encoder_select="qsvenc"
2213 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2214 h264_vaapi_encoder_select="vaapi_encode golomb"
2215
2216 hevc_nvenc_encoder_deps="nvenc"
2217 hevc_qsv_decoder_deps="libmfx"
2218 hevc_qsv_encoder_deps="libmfx"
2219 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2220 hevc_qsv_encoder_select="qsvenc"
2221 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2222 hevc_vaapi_encoder_select="vaapi_encode golomb"
2223 mpeg2_qsv_decoder_deps="libmfx"
2224 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2225 mpeg2_qsv_encoder_deps="libmfx"
2226 mpeg2_qsv_encoder_select="qsvenc"
2227 vc1_qsv_decoder_deps="libmfx"
2228 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2229 vp8_qsv_decoder_deps="libmfx"
2230 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2231
2232 nvenc_h264_encoder_deps="nvenc"
2233 nvenc_hevc_encoder_deps="nvenc"
2234
2235 # parsers
2236 h264_parser_select="golomb h264dsp h264parse"
2237 hevc_parser_select="golomb"
2238 mpegvideo_parser_select="mpegvideo"
2239 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2240 vc1_parser_select="vc1dsp"
2241
2242 # bitstream_filters
2243 mjpeg2jpeg_bsf_select="jpegtables"
2244
2245 # external libraries
2246 libdcadec_decoder_deps="libdcadec"
2247 libfaac_encoder_deps="libfaac"
2248 libfaac_encoder_select="audio_frame_queue"
2249 libfdk_aac_decoder_deps="libfdk_aac"
2250 libfdk_aac_encoder_deps="libfdk_aac"
2251 libfdk_aac_encoder_select="audio_frame_queue"
2252 libgsm_decoder_deps="libgsm"
2253 libgsm_encoder_deps="libgsm"
2254 libgsm_ms_decoder_deps="libgsm"
2255 libgsm_ms_encoder_deps="libgsm"
2256 libilbc_decoder_deps="libilbc"
2257 libilbc_encoder_deps="libilbc"
2258 libkvazaar_encoder_deps="libkvazaar"
2259 libmp3lame_encoder_deps="libmp3lame"
2260 libmp3lame_encoder_select="audio_frame_queue"
2261 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2262 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2263 libopencore_amrnb_encoder_select="audio_frame_queue"
2264 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2265 libopenh264_decoder_deps="libopenh264"
2266 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2267 libopenh264_encoder_deps="libopenh264"
2268 libopenjpeg_decoder_deps="libopenjpeg"
2269 libopenjpeg_encoder_deps="libopenjpeg"
2270 libopus_decoder_deps="libopus"
2271 libopus_encoder_deps="libopus"
2272 libopus_encoder_select="audio_frame_queue"
2273 libschroedinger_decoder_deps="libschroedinger"
2274 libschroedinger_encoder_deps="libschroedinger"
2275 libspeex_decoder_deps="libspeex"
2276 libspeex_encoder_deps="libspeex"
2277 libspeex_encoder_select="audio_frame_queue"
2278 libtheora_encoder_deps="libtheora"
2279 libtwolame_encoder_deps="libtwolame"
2280 libvo_aacenc_encoder_deps="libvo_aacenc"
2281 libvo_aacenc_encoder_select="audio_frame_queue"
2282 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2283 libvorbis_encoder_deps="libvorbis"
2284 libvorbis_encoder_select="audio_frame_queue"
2285 libvpx_vp8_decoder_deps="libvpx"
2286 libvpx_vp8_encoder_deps="libvpx"
2287 libvpx_vp9_decoder_deps="libvpx"
2288 libvpx_vp9_encoder_deps="libvpx"
2289 libwavpack_encoder_deps="libwavpack"
2290 libwebp_encoder_deps="libwebp"
2291 libx262_encoder_deps="libx262"
2292 libx264_encoder_deps="libx264"
2293 libx265_encoder_deps="libx265"
2294 libxavs_encoder_deps="libxavs"
2295 libxvid_encoder_deps="libxvid mkstemp"
2296
2297 # demuxers / muxers
2298 ac3_demuxer_select="ac3_parser"
2299 asf_demuxer_select="riffdec"
2300 asf_muxer_select="riffenc"
2301 asf_stream_muxer_select="asf_muxer"
2302 avi_demuxer_select="iso_media riffdec"
2303 avi_muxer_select="riffenc"
2304 avisynth_demuxer_deps="avisynth"
2305 avisynth_demuxer_select="riffdec"
2306 caf_demuxer_select="iso_media riffdec"
2307 dash_muxer_select="mp4_muxer"
2308 dirac_demuxer_select="dirac_parser"
2309 dv_demuxer_select="dvprofile"
2310 dv_muxer_select="dvprofile"
2311 dxa_demuxer_select="riffdec"
2312 eac3_demuxer_select="ac3_parser"
2313 f4v_muxer_select="mov_muxer"
2314 flac_demuxer_select="flac_parser"
2315 hds_muxer_select="flv_muxer"
2316 hls_muxer_select="mpegts_muxer"
2317 ipod_muxer_select="mov_muxer"
2318 ismv_muxer_select="mov_muxer"
2319 matroska_audio_muxer_select="matroska_muxer"
2320 matroska_demuxer_select="iso_media riffdec"
2321 matroska_demuxer_suggest="bzlib lzo zlib"
2322 matroska_muxer_select="iso_media riffenc"
2323 mmf_muxer_select="riffenc"
2324 mov_demuxer_select="iso_media riffdec"
2325 mov_demuxer_suggest="zlib"
2326 mov_muxer_select="iso_media riffenc rtpenc_chain"
2327 mp3_demuxer_select="mpegaudio_parser"
2328 mp4_muxer_select="mov_muxer"
2329 mpegts_demuxer_select="iso_media"
2330 mpegts_muxer_select="adts_muxer latm_muxer"
2331 mpegtsraw_demuxer_select="mpegts_demuxer"
2332 mxf_d10_muxer_select="mxf_muxer"
2333 nut_muxer_select="riffenc"
2334 nuv_demuxer_select="riffdec"
2335 oga_muxer_select="ogg_muxer"
2336 ogg_demuxer_select="dirac_parse"
2337 opus_muxer_select="ogg_muxer"
2338 psp_muxer_select="mov_muxer"
2339 rtp_demuxer_select="sdp_demuxer"
2340 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2341 rtsp_demuxer_select="http_protocol rtpdec"
2342 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2343 sap_demuxer_select="sdp_demuxer"
2344 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2345 sdp_demuxer_select="rtpdec"
2346 smoothstreaming_muxer_select="ismv_muxer"
2347 spdif_muxer_select="aac_parser"
2348 spx_muxer_select="ogg_muxer"
2349 swf_demuxer_suggest="zlib"
2350 tak_demuxer_select="tak_parser"
2351 tg2_muxer_select="mov_muxer"
2352 tgp_muxer_select="mov_muxer"
2353 w64_demuxer_select="wav_demuxer"
2354 wav_demuxer_select="riffdec"
2355 wav_muxer_select="riffenc"
2356 webm_muxer_select="iso_media riffenc"
2357 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2358 wtv_demuxer_select="mpegts_demuxer riffdec"
2359 xmv_demuxer_select="riffdec"
2360 xwma_demuxer_select="riffdec"
2361
2362 # indevs / outdevs
2363 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2364 alsa_outdev_deps="alsa_asoundlib_h"
2365 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2366 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2367 dv1394_indev_deps="dv1394"
2368 dv1394_indev_select="dv_demuxer"
2369 fbdev_indev_deps="linux_fb_h"
2370 jack_indev_deps="jack_jack_h"
2371 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2372 libcdio_indev_deps="libcdio"
2373 libdc1394_indev_deps="libdc1394"
2374 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2375 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2376 pulse_indev_deps="libpulse"
2377 sndio_indev_deps="sndio_h"
2378 sndio_outdev_deps="sndio_h"
2379 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2380 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2381 vfwcap_indev_extralibs="-lavicap32"
2382 xcbgrab_indev_deps="libxcb"
2383
2384 # protocols
2385 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2386 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2387 ffrtmpcrypt_protocol_select="tcp_protocol"
2388 ffrtmphttp_protocol_deps="!librtmp_protocol"
2389 ffrtmphttp_protocol_select="http_protocol"
2390 gopher_protocol_select="network"
2391 http_protocol_select="tcp_protocol"
2392 httpproxy_protocol_select="tcp_protocol"
2393 https_protocol_select="tls_protocol"
2394 icecast_protocol_select="http_protocol"
2395 librtmp_protocol_deps="librtmp"
2396 librtmpe_protocol_deps="librtmp"
2397 librtmps_protocol_deps="librtmp"
2398 librtmpt_protocol_deps="librtmp"
2399 librtmpte_protocol_deps="librtmp"
2400 mmsh_protocol_select="http_protocol"
2401 mmst_protocol_select="network"
2402 rtmp_protocol_deps="!librtmp_protocol"
2403 rtmp_protocol_select="tcp_protocol"
2404 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2405 rtmps_protocol_deps="!librtmp_protocol"
2406 rtmps_protocol_select="tls_protocol"
2407 rtmpt_protocol_select="ffrtmphttp_protocol"
2408 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2409 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2410 rtp_protocol_select="udp_protocol"
2411 sctp_protocol_deps="struct_sctp_event_subscribe"
2412 sctp_protocol_select="network"
2413 srtp_protocol_select="rtp_protocol srtp"
2414 tcp_protocol_select="network"
2415 tls_gnutls_protocol_deps="gnutls"
2416 tls_gnutls_protocol_select="tcp_protocol"
2417 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2418 tls_openssl_protocol_select="tcp_protocol"
2419 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2420 udp_protocol_select="network"
2421 unix_protocol_deps="sys_un_h"
2422 unix_protocol_select="network"
2423
2424 # filters
2425 asyncts_filter_deps="avresample"
2426 blackframe_filter_deps="gpl"
2427 boxblur_filter_deps="gpl"
2428 bs2b_filter_deps="libbs2b"
2429 cropdetect_filter_deps="gpl"
2430 deinterlace_qsv_filter_deps="libmfx"
2431 delogo_filter_deps="gpl"
2432 drawtext_filter_deps="libfreetype"
2433 frei0r_filter_deps="frei0r dlopen"
2434 frei0r_filter_extralibs='$ldl'
2435 frei0r_src_filter_deps="frei0r dlopen"
2436 frei0r_src_filter_extralibs='$ldl'
2437 hdcd_filter_deps="libhdcd"
2438 hqdn3d_filter_deps="gpl"
2439 interlace_filter_deps="gpl"
2440 movie_filter_deps="avcodec avformat"
2441 ocv_filter_deps="libopencv"
2442 resample_filter_deps="avresample"
2443 scale_filter_deps="swscale"
2444 scale_qsv_filter_deps="libmfx"
2445 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2446
2447 # examples
2448 decode_audio_example_deps="avcodec avutil"
2449 decode_video_example_deps="avcodec avutil"
2450 encode_audio_example_deps="avcodec avutil"
2451 encode_video_example_deps="avcodec avutil"
2452 filter_audio_example_deps="avfilter avutil"
2453 metadata_example_deps="avformat avutil"
2454 output_example_deps="avcodec avformat avresample avutil swscale"
2455 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2456 transcode_aac_example_deps="avcodec avformat avresample"
2457
2458 # libraries, in linking order
2459 avcodec_deps="avutil"
2460 avdevice_deps="avformat avcodec avutil"
2461 avfilter_deps="avutil"
2462 avformat_deps="avcodec avutil"
2463 avresample_deps="avutil"
2464 swscale_deps="avutil"
2465
2466 # programs
2467 avconv_deps="avcodec avfilter avformat avresample swscale"
2468 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2469 fps_filter null_filter resample_filter scale_filter
2470 trim_filter"
2471 avplay_deps="avcodec avfilter avformat avresample sdl"
2472 avplay_libs='$sdl_libs'
2473 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2474 avprobe_deps="avcodec avformat"
2475
2476 # documentation
2477 pod2man_deps="doc"
2478 texi2html_deps="doc"
2479
2480 # default parameters
2481
2482 logfile="config.log"
2483
2484 # installation paths
2485 prefix_default="/usr/local"
2486 bindir_default='${prefix}/bin'
2487 datadir_default='${prefix}/share/avconv'
2488 docdir_default='${prefix}/share/doc/libav'
2489 incdir_default='${prefix}/include'
2490 libdir_default='${prefix}/lib'
2491 mandir_default='${prefix}/share/man'
2492 shlibdir_default="$libdir_default"
2493
2494 # toolchain
2495 ar_default="ar"
2496 cc_default="gcc"
2497 host_cc_default="gcc"
2498 cp_f="cp -f"
2499 ln_s="ln -s -f"
2500 nm_default="nm -g"
2501 objformat="elf"
2502 pkg_config_default=pkg-config
2503 ranlib="ranlib"
2504 strip="strip"
2505 version_script='--version-script'
2506 yasmexe="yasm"
2507
2508 # machine
2509 arch_default=$(uname -m)
2510 cpu="generic"
2511 intrinsics="none"
2512
2513 # OS
2514 target_os_default=$(tolower $(uname -s))
2515 host_os=$target_os_default
2516
2517 # configurable options
2518 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2519
2520 enable asm
2521 enable debug
2522 enable doc
2523 enable faan faandct faanidct
2524 enable optimizations
2525 enable safe_bitstream_reader
2526 enable static
2527 enable swscale_alpha
2528 enable valgrind_backtrace
2529
2530 # By default, enable only those hwaccels that have no external dependencies.
2531 enable d3d11va dxva2 vda vdpau
2532
2533 # build settings
2534 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2535 LIBPREF="lib"
2536 LIBSUF=".a"
2537 FULLNAME='$(NAME)$(BUILDSUF)'
2538 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2539 SLIBPREF="lib"
2540 SLIBSUF=".so"
2541 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2542 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2543 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2544 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2545 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2546 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2547 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2548
2549 asflags_filter=echo
2550 cflags_filter=echo
2551 ldflags_filter=echo
2552
2553 AS_C='-c'
2554 AS_O='-o $@'
2555 CC_C='-c'
2556 CC_E='-E -o $@'
2557 CC_O='-o $@'
2558 OBJCC_C='-c'
2559 OBJCC_E='-E -o $@'
2560 OBJCC_O='-o $@'
2561 LD_O='-o $@'
2562 LD_LIB='-l%'
2563 LD_PATH='-L'
2564 HOSTCC_C='-c'
2565 HOSTCC_E='-E -o $@'
2566 HOSTCC_O='-o $@'
2567 HOSTLD_O='-o $@'
2568
2569 host_libs='-lm'
2570 host_cflags_filter=echo
2571 host_ldflags_filter=echo
2572
2573 target_path='$(CURDIR)'
2574
2575 # since the object filename is not given with the -MM flag, the compiler
2576 # is only able to print the basename, and we must add the path ourselves
2577 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2578 DEPFLAGS='-MM'
2579
2580 # find source path
2581 if test -f configure; then
2582 source_path=.
2583 else
2584 source_path=$(cd $(dirname "$0"); pwd)
2585 echo "$source_path" | grep -q '[[:blank:]]' &&
2586 die "Out of tree builds are impossible with whitespace in source path."
2587 test -e "$source_path/config.h" &&
2588 die "Out of tree builds are impossible with config.h in source dir."
2589 fi
2590
2591 for v in "$@"; do
2592 r=${v#*=}
2593 l=${v%"$r"}
2594 r=$(sh_quote "$r")
2595 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2596 done
2597
2598 find_things(){
2599 thing=$1
2600 pattern=$2
2601 file=$source_path/$3
2602 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2603 }
2604
2605 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2606 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2607 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2608 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2609 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2610 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2611 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2612 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2613 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2614
2615 find_things_extern(){
2616 thing=$1
2617 pattern=$2
2618 file=$source_path/$3
2619 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2620 }
2621
2622 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2623 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2624
2625 ALL_COMPONENTS="
2626 $BSF_LIST
2627 $DECODER_LIST
2628 $DEMUXER_LIST
2629 $ENCODER_LIST
2630 $FILTER_LIST
2631 $HWACCEL_LIST
2632 $INDEV_LIST
2633 $MUXER_LIST
2634 $OUTDEV_LIST
2635 $PARSER_LIST
2636 $PROTOCOL_LIST
2637 "
2638
2639 for n in $COMPONENT_LIST; do
2640 v=$(toupper ${n%s})_LIST
2641 eval enable \$$v
2642 eval ${n}_if_any="\$$v"
2643 done
2644
2645 enable $ARCH_EXT_LIST
2646
2647 die_unknown(){
2648 echo "Unknown option \"$1\"."
2649 echo "See $0 --help for available options."
2650 exit 1
2651 }
2652
2653 print_3_columns() {
2654 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2655 }
2656
2657 show_list() {
2658 suffix=_$1
2659 shift
2660 echo $* | sed s/$suffix//g | print_3_columns
2661 exit 0
2662 }
2663
2664 rand_list(){
2665 IFS=', '
2666 set -- $*
2667 unset IFS
2668 for thing; do
2669 comp=${thing%:*}
2670 prob=${thing#$comp}
2671 prob=${prob#:}
2672 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2673 echo "prob ${prob:-0.5}"
2674 printf '%s\n' $comp
2675 done
2676 }
2677
2678 do_random(){
2679 action=$1
2680 shift
2681 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2682 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2683 }
2684
2685 for opt do
2686 optval="${opt#*=}"
2687 case "$opt" in
2688 --extra-ldflags=*)
2689 add_ldflags $optval
2690 ;;
2691 --extra-ldexeflags=*)
2692 add_ldexeflags $optval
2693 ;;
2694 --extra-libs=*)
2695 add_extralibs $optval
2696 ;;
2697 --disable-devices)
2698 disable $INDEV_LIST $OUTDEV_LIST
2699 ;;
2700 --enable-debug=*)
2701 debuglevel="$optval"
2702 ;;
2703 --disable-programs)
2704 disable $PROGRAM_LIST
2705 ;;
2706 --disable-everything)
2707 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2708 ;;
2709 --disable-all)
2710 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2711 disable $LIBRARY_LIST $PROGRAM_LIST doc
2712 ;;
2713 --enable-random|--disable-random)
2714 action=${opt%%-random}
2715 do_random ${action#--} $COMPONENT_LIST
2716 ;;
2717 --enable-random=*|--disable-random=*)
2718 action=${opt%%-random=*}
2719 do_random ${action#--} $optval
2720 ;;
2721 --enable-*=*|--disable-*=*)
2722 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2723 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2724 eval list=\$$(toupper $thing)_LIST
2725 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2726 $action $(filter "$name" $list)
2727 ;;
2728 --enable-avserver|--disable-avserver*)
2729 warn "avserver has been removed, the ${opt} option is only"\
2730 "provided for compatibility and will be removed in the future"
2731 ;;
2732 --enable-?*|--disable-?*)
2733 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2734 if is_in $option $COMPONENT_LIST; then
2735 test $action = disable && action=unset
2736 eval $action \$$(toupper ${option%s})_LIST
2737 elif is_in $option $CMDLINE_SELECT; then
2738 $action $option
2739 else
2740 die_unknown $opt
2741 fi
2742 ;;
2743 --list-*)
2744 NAME="${opt#--list-}"
2745 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2746 NAME=${NAME%s}
2747 eval show_list $NAME \$$(toupper $NAME)_LIST
2748 ;;
2749 --help|-h) show_help
2750 ;;
2751 --quiet|-q) quiet=yes
2752 ;;
2753 *)
2754 optname="${opt%%=*}"
2755 optname="${optname#--}"
2756 optname=$(echo "$optname" | sed 's/-/_/g')
2757 if is_in $optname $CMDLINE_SET; then
2758 eval $optname='$optval'
2759 elif is_in $optname $CMDLINE_APPEND; then
2760 append $optname "$optval"
2761 else
2762 die_unknown $opt
2763 fi
2764 ;;
2765 esac
2766 done
2767
2768 for e in $env; do
2769 eval "export $e"
2770 done
2771
2772 disabled logging && logfile=/dev/null
2773
2774 # Die early if licensing-related configure options are incompatible.
2775 die_license_disabled() {
2776 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2777 }
2778
2779 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2780 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2781 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2782
2783 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2784
2785 # Disable all the library-specific components if the library itself
2786 # is disabled, see AVCODEC_LIST and following _LIST variables.
2787
2788 disable_components(){
2789 disabled ${1} && disable $(
2790 eval components="\$$(toupper ${1})_COMPONENTS"
2791 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2792 )
2793 }
2794
2795 map 'disable_components $v' $LIBRARY_LIST
2796
2797 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2798 set >> $logfile
2799
2800 case "$toolchain" in
2801 *-asan)
2802 cc_default="${toolchain%-asan}"
2803 add_cflags -fsanitize=address
2804 add_ldflags -fsanitize=address
2805 ;;
2806 *-msan)
2807 cc_default="${toolchain%-msan}"
2808 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2809 add_ldflags -fsanitize=memory
2810 ;;
2811 *-tsan)
2812 cc_default="${toolchain%-tsan}"
2813 add_cflags -fsanitize=thread -pie
2814 add_ldflags -fsanitize=thread -pie
2815 case "$toolchain" in
2816 gcc-tsan)
2817 add_cflags -fPIC
2818 add_ldflags -fPIC
2819 ;;
2820 esac
2821 ;;
2822 *-usan)
2823 cc_default="${toolchain%-usan}"
2824 add_cflags -fsanitize=undefined
2825 add_ldflags -fsanitize=undefined
2826 case "$toolchain" in
2827 clang-usan)
2828 add_cflags -O1
2829 ;;
2830 esac
2831 ;;
2832 valgrind-*)
2833 target_exec_default="valgrind"
2834 case "$toolchain" in
2835 valgrind-massif)
2836 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2837 ;;
2838 valgrind-memcheck)
2839 target_exec_args="--track-origins=yes --leak-check=full"
2840 ;;
2841 esac
2842 ;;
2843 msvc)
2844 # Check whether the current MSVC version needs the C99 converter.
2845 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2846 # support enough of C99 to build libav. Default to the new
2847 # behaviour if the regexp was unable to match anything, since this
2848 # successfully parses the version number of existing supported
2849 # versions that require the converter (MSVC 2010 and 2012).
2850 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2851 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2852 cc_default="cl"
2853 else
2854 cc_default="c99wrap cl"
2855 fi
2856 ld_default="$source_path/compat/windows/mslink"
2857 nm_default="dumpbin -symbols"
2858 ar_default="lib"
2859 case "$arch" in
2860 arm*)
2861 as_default="armasm"
2862 ;;
2863 esac
2864 target_os_default="win32"
2865 # Use a relative path for TMPDIR. This makes sure all the
2866 # ffconf temp files are written with a relative path, avoiding
2867 # issues with msys/win32 path conversion for MSVC parameters
2868 # such as -Fo<file> or -out:<file>.
2869 TMPDIR=.
2870 ;;
2871 icl)
2872 cc_default="icl"
2873 ld_default="xilink"
2874 nm_default="dumpbin -symbols"
2875 ar_default="xilib"
2876 target_os_default="win32"
2877 TMPDIR=.
2878 ;;
2879 gcov)
2880 add_cflags -fprofile-arcs -ftest-coverage
2881 add_ldflags -fprofile-arcs -ftest-coverage
2882 ;;
2883 llvm-cov)
2884 add_cflags -fprofile-arcs -ftest-coverage
2885 add_ldflags --coverage
2886 ;;
2887 hardened)
2888 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2889 add_cflags -fno-strict-overflow -fstack-protector-all
2890 add_ldflags -Wl,-z,relro -Wl,-z,now
2891 ;;
2892 ?*)
2893 die "Unknown toolchain $toolchain"
2894 ;;
2895 esac
2896
2897 test -n "$cross_prefix" && enable cross_compile
2898
2899 if enabled cross_compile; then
2900 test -n "$arch" && test -n "$target_os" ||
2901 die "Must specify target arch and OS when cross-compiling"
2902 fi
2903
2904 ar_default="${cross_prefix}${ar_default}"
2905 cc_default="${cross_prefix}${cc_default}"
2906 occ_default="${cross_prefix}${occ_default}"
2907 nm_default="${cross_prefix}${nm_default}"
2908 pkg_config_default="${cross_prefix}${pkg_config_default}"
2909 ranlib="${cross_prefix}${ranlib}"
2910 strip="${cross_prefix}${strip}"
2911
2912 sysinclude_default="${sysroot}/usr/include"
2913
2914 set_default arch cc pkg_config sysinclude target_exec target_os
2915 enabled cross_compile || host_cc_default=$cc
2916 set_default host_cc
2917
2918 if ! $pkg_config --version >/dev/null 2>&1; then
2919 warn "$pkg_config not found, library detection may fail."
2920 pkg_config=false
2921 fi
2922
2923 exesuf() {
2924 case $1 in
2925 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2926 esac
2927 }
2928
2929 EXESUF=$(exesuf $target_os)
2930 HOSTEXESUF=$(exesuf $host_os)
2931
2932 # set temporary file name
2933 : ${TMPDIR:=$TEMPDIR}
2934 : ${TMPDIR:=$TMP}
2935 : ${TMPDIR:=/tmp}
2936
2937 if ! check_cmd mktemp -u XXXXXX; then
2938 # simple replacement for missing mktemp
2939 # NOT SAFE FOR GENERAL USE
2940 mktemp(){
2941 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2942 }
2943 fi
2944
2945 tmpfile(){
2946 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2947 (set -C; exec > $tmp) 2>/dev/null ||
2948 die "Unable to create temporary file in $TMPDIR."
2949 append TMPFILES $tmp
2950 eval $1=$tmp
2951 }
2952
2953 trap 'rm -f -- $TMPFILES' EXIT
2954
2955 tmpfile TMPASM .asm
2956 tmpfile TMPC .c
2957 tmpfile TMPE $EXESUF
2958 tmpfile TMPH .h
2959 tmpfile TMPO .o
2960 tmpfile TMPS .S
2961 tmpfile TMPSH .sh
2962 tmpfile TMPV .ver
2963
2964 unset -f mktemp
2965
2966 chmod +x $TMPE
2967
2968 # make sure we can execute files in $TMPDIR
2969 cat > $TMPSH 2>> $logfile <<EOF
2970 #! /bin/sh
2971 EOF
2972 chmod +x $TMPSH >> $logfile 2>&1
2973 if ! $TMPSH >> $logfile 2>&1; then
2974 cat <<EOF
2975 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2976 variable to another directory and make sure that it is not mounted noexec.
2977 EOF
2978 die "Sanity test failed."
2979 fi
2980
2981 armasm_flags(){
2982 for flag; do
2983 case $flag in
2984 # Filter out MSVC cl.exe options from cflags that shouldn't
2985 # be passed to gas-preprocessor
2986 -M[TD]*) ;;
2987 *) echo $flag ;;
2988 esac
2989 done
2990 }
2991
2992 ccc_flags(){
2993 for flag; do
2994 case $flag in
2995 -std=c99) echo -c99 ;;
2996 -mcpu=*) echo -arch ${flag#*=} ;;
2997 -mieee) echo -ieee ;;
2998 -O*|-fast) echo $flag ;;
2999 -fno-math-errno) echo -assume nomath_errno ;;
3000 -g) echo -g3 ;;
3001 -Wall) echo -msg_enable level2 ;;
3002 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3003 -Wl,*) echo $flag ;;
3004 -f*|-W*) ;;
3005 *) echo $flag ;;
3006 esac
3007 done
3008 }
3009
3010 cparser_flags(){
3011 for flag; do
3012 case $flag in
3013 -Wno-switch) echo -Wno-switch-enum ;;
3014 -Wno-format-zero-length) ;;
3015 -Wdisabled-optimization) ;;
3016 -Wno-pointer-sign) echo -Wno-other ;;
3017 *) echo $flag ;;
3018 esac
3019 done
3020 }
3021
3022 msvc_common_flags(){
3023 for flag; do
3024 case $flag in
3025 # In addition to specifying certain flags under the compiler
3026 # specific filters, they must be specified here as well or else the
3027 # generic catch all at the bottom will print the original flag.
3028 -Wall) ;;
3029 -std=c99) ;;
3030 # Common flags
3031 -fomit-frame-pointer) ;;
3032 -g) echo -Z7 ;;
3033 -fno-math-errno) ;;
3034 -fno-common) ;;
3035 -fno-signed-zeros) ;;
3036 -fPIC) ;;
3037 -mthumb) ;;
3038 -march=*) ;;
3039 -lz) echo zlib.lib ;;
3040 -lavicap32) echo vfw32.lib user32.lib ;;
3041 -lx264) echo libx264.lib ;;
3042 -l*) echo ${flag#-l}.lib ;;
3043 -L*) echo -libpath:${flag#-L} ;;
3044 *) echo $flag ;;
3045 esac
3046 done
3047 }
3048
3049 msvc_flags(){
3050 msvc_common_flags "$@"
3051 for flag; do
3052 case $flag in
3053 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3054 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3055 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3056 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3057 esac
3058 done
3059 }
3060
3061 icl_flags(){
3062 msvc_common_flags "$@"
3063 for flag; do
3064 case $flag in
3065 # Despite what Intel's documentation says -Wall, which is supported
3066 # on Windows, does enable remarks so disable them here.
3067 -Wall) echo $flag -Qdiag-disable:remark ;;
3068 -std=c99) echo -Qstd=c99 ;;
3069 esac
3070 done
3071 }
3072
3073 pgi_flags(){
3074 for flag; do
3075 case $flag in
3076 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3077 -fomit-frame-pointer) echo -Mnoframe ;;
3078 -g) echo -gopt ;;
3079 *) echo $flag ;;
3080 esac
3081 done
3082 }
3083
3084 suncc_flags(){
3085 for flag; do
3086 case $flag in
3087 -march=*|-mcpu=*)
3088 case "${flag#*=}" in
3089 native) echo -xtarget=native ;;
3090 v9|niagara) echo -xarch=sparc ;;
3091 ultrasparc) echo -xarch=sparcvis ;;
3092 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3093 i586|pentium) echo -xchip=pentium ;;
3094 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3095 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3096 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3097 pentium4*) echo -xtarget=pentium4 ;;
3098 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3099 *-sse3) echo -xarch=sse3 ;;
3100 core2) echo -xarch=ssse3 -xchip=core2 ;;
3101 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3102 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3103 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3104 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3105 k8|opteron|athlon64|athlon-fx)
3106 echo -xarch=sse2a ;;
3107 athlon*) echo -xarch=pentium_proa ;;
3108 esac
3109 ;;
3110 -std=c99) echo -xc99 ;;
3111 -fomit-frame-pointer) echo -xregs=frameptr ;;
3112 -fPIC) echo -KPIC -xcode=pic32 ;;
3113 -W*,*) echo $flag ;;
3114 -f*-*|-W*|-mimpure-text) ;;
3115 -shared) echo -G ;;
3116 *) echo $flag ;;
3117 esac
3118 done
3119 }
3120
3121 tms470_flags(){
3122 for flag; do
3123 case $flag in
3124 -march=*|-mcpu=*)
3125 case "${flag#*=}" in
3126 armv7-a|cortex-a*) echo -mv=7a8 ;;
3127 armv7-r|cortex-r*) echo -mv=7r4 ;;
3128 armv7-m|cortex-m*) echo -mv=7m3 ;;
3129 armv6*|arm11*) echo -mv=6 ;;
3130 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3131 echo -mv=5e ;;
3132 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3133 esac
3134 ;;
3135 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3136 -mfpu=vfp) echo --float_support=vfpv2 ;;
3137 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3138 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3139 -msoft-float) echo --float_support=vfplib ;;
3140 -O[0-3]|-mf=*) echo $flag ;;
3141 -g) echo -g -mn ;;
3142 -pds=*) echo $flag ;;
3143 -D*|-I*) echo $flag ;;
3144 --gcc|--abi=*) echo $flag ;;
3145 -me) echo $flag ;;
3146 esac
3147 done
3148 }
3149
3150 probe_cc(){
3151 pfx=$1
3152 _cc=$2
3153
3154 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3155 unset _ld_o _ldflags _ld_lib _ld_path
3156 unset _depflags _DEPCMD _DEPFLAGS
3157 _flags_filter=echo
3158
3159 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3160 _type=llvm_gcc
3161 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3162 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3163 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3164 _cflags_speed='-O3'
3165 _cflags_size='-Os'
3166 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3167 _type=gcc
3168 gcc_version=$($_cc --version | head -n1)
3169 gcc_basever=$($_cc -dumpversion)
3170 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3171 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3172 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3173 if ! $_cc -dumpversion | grep -q '^2\.'; then
3174 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3175 fi
3176 _cflags_speed='-O3'
3177 _cflags_size='-Os'
3178 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3179 _type=icc
3180 _ident=$($_cc --version | head -n1)
3181 _depflags='-MMD'
3182 _cflags_speed='-O3'
3183 _cflags_size='-Os'
3184 _cflags_noopt='-O1'
3185 elif $_cc -v 2>&1 | grep -q xlc; then
3186 _type=xlc
3187 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3188 _cflags_speed='-O5'
3189 _cflags_size='-O5 -qcompact'
3190 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3191 _type=ccc
3192 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3193 _DEPFLAGS='-M'
3194 _cflags_speed='-fast'
3195 _cflags_size='-O1'
3196 _flags_filter=ccc_flags
3197 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3198 test -d "$sysroot" || die "No valid sysroot specified."
3199 _type=armcc
3200 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3201 armcc_conf="$PWD/armcc.conf"
3202 $_cc --arm_linux_configure \
3203 --arm_linux_config_file="$armcc_conf" \
3204 --configure_sysroot="$sysroot" \
3205 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3206 die "Error creating armcc configuration file."
3207 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3208 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3209 as_default="${cross_prefix}gcc"
3210 _depflags='-MMD'
3211 _cflags_speed='-O3'
3212 _cflags_size='-Os'
3213 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3214 _type=tms470
3215 _ident=$($_cc -version | head -n1 | tr -s ' ')
3216 _flags='--gcc --abi=eabi -me'
3217 _cc_e='-ppl -fe=$@'
3218 _cc_o='-fe=$@'
3219 _depflags='-ppa -ppd=$(@:.o=.d)'
3220 _cflags_speed='-O3 -mf=5'
3221 _cflags_size='-O3 -mf=2'
3222 _flags_filter=tms470_flags
3223 elif $_cc -v 2>&1 | grep -q clang; then
3224 _type=clang
3225 _ident=$($_cc --version 2>/dev/null | head -n1)
3226 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3227 _cflags_speed='-O3'
3228 _cflags_size='-Os'
3229 elif $_cc -V 2>&1 | grep -q Sun; then
3230 _type=suncc
3231 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3232 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3233 _DEPFLAGS='-xM1 -xc99'
3234 _ldflags='-std=c99'
3235 _cflags_speed='-O5'
3236 _cflags_size='-O5 -xspace'
3237 _flags_filter=suncc_flags
3238 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3239 _type=pathscale
3240 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3241 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3242 _cflags_speed='-O2'
3243 _cflags_size='-Os'
3244 _flags_filter='filter_out -Wdisabled-optimization'
3245 elif $_cc -v 2>&1 | grep -q Open64; then
3246 _type=open64
3247 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3248 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3249 _cflags_speed='-O2'
3250 _cflags_size='-Os'
3251 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3252 elif $_cc -V 2>&1 | grep -q Portland; then
3253 _type=pgi
3254 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3255 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3256 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3257 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3258 _cflags_noopt="-O1"
3259 _flags_filter=pgi_flags
3260 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3261 _type=armasm
3262 _ident=$($_cc | head -n1)
3263 # 4509: "This form of conditional instruction is deprecated"
3264 _flags="-nologo -ignore 4509"
3265 _flags_filter=armasm_flags
3266 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3267 _type=msvc
3268 _ident=$($_cc 2>&1 | head -n1)
3269 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3270 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3271 _cflags_speed="-O2"
3272 _cflags_size="-O1"
3273 if $_cc -nologo- 2>&1 | grep -q Linker; then
3274 _ld_o='-out:$@'
3275 else
3276 _ld_o='-Fe$@'
3277 fi
3278 _cc_o='-Fo$@'
3279 _cc_e='-P -Fi$@'
3280 _flags_filter=msvc_flags
3281 _ld_lib='lib%.a'
3282 _ld_path='-libpath:'
3283 _flags='-nologo'
3284 elif $_cc 2>&1 | grep -q Intel; then
3285 _type=icl
3286 _ident=$($_cc 2>&1 | head -n1)
3287 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3288 # Not only is O3 broken on 13.x+ but it is slower on all previous
3289 # versions (tested) as well.
3290 _cflags_speed="-O2"
3291 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3292 if $_cc 2>&1 | grep -q Linker; then
3293 _ld_o='-out:$@'
3294 else
3295 _ld_o='-Fe$@'
3296 fi
3297 _cc_o='-Fo$@'
3298 _cc_e='-P'
3299 _flags_filter=icl_flags
3300 _ld_lib='lib%.a'
3301 _ld_path='-libpath:'
3302 # -Qdiag-error to make icl error when seeing certain unknown arguments
3303 _flags='-nologo -Qdiag-error:4044,10157'
3304 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3305 # with MSVC which enables it by default.
3306 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3307 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3308 # lld can emulate multiple different linkers; in ms link.exe mode,
3309 # the -? parameter gives the help output which contains an identifyable
3310 # string, while it gives an error in other modes.
3311 _type=lld-link
3312 # The link.exe mode doesn't have a switch for getting the version,
3313 # but we can force it back to gnu mode and get the version from there.
3314 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3315 _ld_o='-out:$@'
3316 _flags_filter=msvc_flags
3317 _ld_lib='lib%.a'
3318 _ld_path='-libpath:'
3319 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3320 _type=cparser
3321 _ident=$($_cc --version | head -n1)
3322 _depflags='-MMD'
3323 _cflags_speed='-O4'
3324 _cflags_size='-O2'
3325 _flags_filter=cparser_flags
3326 fi
3327
3328 eval ${pfx}_type=\$_type
3329 eval ${pfx}_ident=\$_ident
3330 }
3331
3332 set_ccvars(){
3333 eval ${1}_C=\${_cc_c-\${${1}_C}}
3334 eval ${1}_E=\${_cc_e-\${${1}_E}}
3335 eval ${1}_O=\${_cc_o-\${${1}_O}}
3336
3337 if [ -n "$_depflags" ]; then
3338 eval ${1}_DEPFLAGS=\$_depflags
3339 else
3340 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3341 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3342 eval DEP${1}FLAGS=\$_flags
3343 fi
3344 }
3345
3346 probe_cc cc "$cc"
3347 cflags_filter=$_flags_filter
3348 cflags_speed=$_cflags_speed
3349 cflags_size=$_cflags_size
3350 cflags_noopt=$_cflags_noopt
3351 add_cflags $_flags $_cflags
3352 cc_ldflags=$_ldflags
3353 set_ccvars CC
3354
3355 probe_cc hostcc "$host_cc"
3356 host_cflags_filter=$_flags_filter
3357 add_host_cflags $_flags $_cflags
3358 set_ccvars HOSTCC
3359
3360 test -n "$cc_type" && enable $cc_type ||
3361 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3362
3363 : ${as_default:=$cc}
3364 : ${objcc_default:=$cc}
3365 : ${dep_cc_default:=$cc}
3366 : ${ld_default:=$cc}
3367 : ${host_ld_default:=$host_cc}
3368 set_default ar as objcc dep_cc ld host_ld
3369
3370 probe_cc as "$as"
3371 asflags_filter=$_flags_filter
3372 add_asflags $_flags $_cflags
3373 set_ccvars AS
3374
3375 probe_cc objcc "$objcc"
3376 objcflags_filter=$_flags_filter
3377 add_objcflags $_flags $_cflags
3378 set_ccvars OBJC
3379
3380 probe_cc ld "$ld"
3381 ldflags_filter=$_flags_filter
3382 add_ldflags $_flags $_ldflags
3383 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3384 LD_O=${_ld_o-$LD_O}
3385 LD_LIB=${_ld_lib-$LD_LIB}
3386 LD_PATH=${_ld_path-$LD_PATH}
3387
3388 probe_cc hostld "$host_ld"
3389 host_ldflags_filter=$_flags_filter
3390 add_host_ldflags $_flags $_ldflags
3391 HOSTLD_O=${_ld_o-$HOSTLD_O}
3392
3393 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3394 probe_cc depcc "$dep_cc"
3395 CCDEP=${_DEPCMD:-$DEPCMD}
3396 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3397 DEPCCFLAGS=$_flags
3398 fi
3399
3400 if $ar 2>&1 | grep -q Microsoft; then
3401 arflags="-nologo"
3402 ar_o='-out:$@'
3403 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3404 arflags="rq"
3405 ar_o='$@'
3406 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3407 arflags='-Xany -r -c'
3408 ar_o='$@'
3409 else
3410 arflags="rc"
3411 ar_o='$@'
3412 fi
3413
3414 add_cflags $extra_cflags
3415 add_objcflags $extra_objcflags
3416 add_asflags $extra_cflags
3417
3418 if test -n "$sysroot"; then
3419 case "$cc_type" in
3420 gcc|llvm_gcc|clang)
3421 add_cppflags --sysroot="$sysroot"
3422 add_ldflags --sysroot="$sysroot"
3423 ;;
3424 tms470)
3425 add_cppflags -I"$sysinclude"
3426 add_ldflags --sysroot="$sysroot"
3427 ;;
3428 esac
3429 fi
3430
3431 if test "$cpu" = host; then
3432 enabled cross_compile &&
3433 die "--cpu=host makes no sense when cross-compiling."
3434
3435 case "$cc_type" in
3436 gcc|llvm_gcc)
3437 check_native(){
3438 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3439 sed -n "/cc1.*$1=/{
3440 s/.*$1=\\([^ ]*\\).*/\\1/
3441 p
3442 q
3443 }" $TMPE
3444 }
3445 cpu=$(check_native -march || check_native -mcpu)
3446 ;;
3447 esac
3448
3449 test "${cpu:-host}" = host &&
3450 die "--cpu=host not supported with compiler $cc"
3451 fi
3452
3453 # Deal with common $arch aliases
3454 case "$arch" in
3455 aarch64|arm64)
3456 arch="aarch64"
3457 ;;
3458 arm*)
3459 arch="arm"
3460 ;;
3461 mips*|IP*)
3462 case "$arch" in
3463 *el)
3464 add_cppflags -EL
3465 add_ldflags -EL
3466 ;;
3467 *eb)
3468 add_cppflags -EB
3469 add_ldflags -EB
3470 ;;
3471 esac
3472 arch="mips"
3473 ;;
3474 parisc*|hppa*)
3475 arch="parisc"
3476 ;;
3477 "Power Macintosh"|ppc*|powerpc*)
3478 arch="ppc"
3479 ;;
3480 s390|s390x)
3481 arch="s390"
3482 ;;
3483 sh4|sh)
3484 arch="sh4"
3485 ;;
3486 sun4u|sparc*)
3487 arch="sparc"
3488 ;;
3489 tilegx|tile-gx)
3490 arch="tilegx"
3491 ;;
3492 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3493 arch="x86"
3494 ;;
3495 esac
3496
3497 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3498 enable $arch
3499
3500 # Add processor-specific flags
3501 if enabled aarch64; then
3502
3503 case $cpu in
3504 armv*)
3505 cpuflags="-march=$cpu"
3506 ;;
3507 *)
3508 cpuflags="-mcpu=$cpu"
3509 ;;
3510 esac
3511
3512 elif enabled alpha; then
3513
3514 cpuflags="-mcpu=$cpu"
3515
3516 elif enabled arm; then
3517
3518 check_arm_arch() {
3519 check_cpp_condition stddef.h \
3520 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3521 $cpuflags
3522 }
3523
3524 probe_arm_arch() {
3525 if check_arm_arch 4; then echo armv4
3526 elif check_arm_arch 4T; then echo armv4t
3527 elif check_arm_arch 5; then echo armv5
3528 elif check_arm_arch 5E; then echo armv5e
3529 elif check_arm_arch 5T; then echo armv5t
3530 elif check_arm_arch 5TE; then echo armv5te
3531 elif check_arm_arch 5TEJ; then echo armv5te
3532 elif check_arm_arch 6; then echo armv6
3533 elif check_arm_arch 6J; then echo armv6j
3534 elif check_arm_arch 6K; then echo armv6k
3535 elif check_arm_arch 6Z; then echo armv6z
3536 elif check_arm_arch 6ZK; then echo armv6zk
3537 elif check_arm_arch 6T2; then echo armv6t2
3538 elif check_arm_arch 7; then echo armv7
3539 elif check_arm_arch 7A 7_A; then echo armv7-a
3540 elif check_arm_arch 7S; then echo armv7-a
3541 elif check_arm_arch 7R 7_R; then echo armv7-r
3542 elif check_arm_arch 7M 7_M; then echo armv7-m
3543 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3544 elif check_arm_arch 8A 8_A; then echo armv8-a
3545 fi
3546 }
3547
3548 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3549
3550 case $cpu in
3551 armv*)
3552 cpuflags="-march=$cpu"
3553 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3554 ;;
3555 *)
3556 cpuflags="-mcpu=$cpu"
3557 case $cpu in
3558 cortex-a*) subarch=armv7a ;;
3559 cortex-r*) subarch=armv7r ;;
3560 cortex-m*) enable thumb; subarch=armv7m ;;
3561 arm11*) subarch=armv6 ;;
3562 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3563 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3564 *) subarch=$(probe_arm_arch) ;;
3565 esac
3566 ;;
3567 esac
3568
3569 case "$subarch" in
3570 armv5t*) enable fast_clz ;;
3571 armv[6-8]*) enable fast_clz fast_unaligned ;;
3572 esac
3573
3574 elif enabled avr32; then
3575
3576 case $cpu in
3577 ap7[02]0[0-2])
3578 subarch="avr32_ap"
3579 cpuflags="-mpart=$cpu"
3580 ;;
3581 ap)
3582 subarch="avr32_ap"
3583 cpuflags="-march=$cpu"
3584 ;;
3585 uc3[ab]*)
3586 subarch="avr32_uc"
3587 cpuflags="-mcpu=$cpu"
3588 ;;
3589 uc)
3590 subarch="avr32_uc"
3591 cpuflags="-march=$cpu"
3592 ;;
3593 esac
3594
3595 elif enabled bfin; then
3596
3597 cpuflags="-mcpu=$cpu"
3598
3599 elif enabled mips; then
3600
3601 cpuflags="-march=$cpu"
3602
3603 elif enabled ppc; then
3604
3605 disable ldbrx
3606
3607 case $(tolower $cpu) in
3608 601|ppc601|powerpc601)
3609 cpuflags="-mcpu=601"
3610 disable altivec
3611 ;;
3612 603*|ppc603*|powerpc603*)
3613 cpuflags="-mcpu=603"
3614 disable altivec
3615 ;;
3616 604*|ppc604*|powerpc604*)
3617 cpuflags="-mcpu=604"
3618 disable altivec
3619 ;;
3620 g3|75*|ppc75*|powerpc75*)
3621 cpuflags="-mcpu=750"
3622 disable altivec
3623 ;;
3624 g4|745*|ppc745*|powerpc745*)
3625 cpuflags="-mcpu=7450"
3626 disable vsx
3627 ;;
3628 74*|ppc74*|powerpc74*)
3629 cpuflags="-mcpu=7400"
3630 disable vsx
3631 ;;
3632 g5|970|ppc970|powerpc970)
3633 cpuflags="-mcpu=970"
3634 disable vsx
3635 ;;
3636 power[3-6]*)
3637 cpuflags="-mcpu=$cpu"
3638 disable vsx
3639 ;;
3640 power[7-8]*)
3641 cpuflags="-mcpu=$cpu"
3642 enable ldbrx
3643 ;;
3644 cell)
3645 cpuflags="-mcpu=cell"
3646 enable ldbrx
3647 disable vsx
3648 ;;
3649 e500mc)
3650 cpuflags="-mcpu=e500mc"
3651 disable altivec
3652 ;;
3653 e500v2)
3654 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3655 disable altivec
3656 disable dcbzl
3657 ;;
3658 e500)
3659 cpuflags="-mcpu=8540 -mhard-float"
3660 disable altivec
3661 disable dcbzl
3662 ;;
3663 esac
3664
3665 elif enabled sparc; then
3666
3667 case $cpu in
3668 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3669 cpuflags="-mcpu=$cpu"
3670 ;;
3671 ultrasparc*|niagara[234])
3672 cpuflags="-mcpu=$cpu"
3673 ;;
3674 esac
3675
3676 elif enabled x86; then
3677
3678 case $cpu in
3679 i[345]86|pentium)
3680 cpuflags="-march=$cpu"
3681 disable i686
3682 disable mmx
3683 ;;
3684 # targets that do NOT support nopl and conditional mov (cmov)
3685 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3686 cpuflags="-march=$cpu"
3687 disable i686
3688 ;;
3689 # targets that do support nopl and conditional mov (cmov)
3690 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3691 cpuflags="-march=$cpu"
3692 enable i686
3693 enable fast_cmov
3694 ;;
3695 # targets that do support conditional mov but on which it's slow
3696 pentium4|pentium4m|prescott|nocona)
3697 cpuflags="-march=$cpu"
3698 enable i686
3699 disable fast_cmov
3700 ;;
3701 esac
3702
3703 fi
3704
3705 if [ "$cpu" != generic ]; then
3706 add_cflags $cpuflags
3707 add_asflags $cpuflags
3708 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3709 fi
3710
3711 # compiler sanity check
3712 check_exec <<EOF
3713 int main(void){ return 0; }
3714 EOF
3715 if test "$?" != 0; then
3716 echo "$cc is unable to create an executable file."
3717 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3718 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3719 echo "Only do this if you know what cross compiling means."
3720 fi
3721 die "C compiler test failed."
3722 fi
3723
3724 add_cppflags -D_ISOC99_SOURCE
3725
3726 # some compilers silently accept -std=c11, so we also need to check that the
3727 # version macro is defined properly
3728 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3729 add_cflags -std=c11
3730 else
3731 check_cflags -std=c99
3732 fi
3733
3734 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3735 #include <stdlib.h>
3736 EOF
3737 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3738 #include <stdlib.h>
3739 EOF
3740
3741 add_host_cppflags -D_ISOC99_SOURCE
3742 check_host_cflags -std=c99
3743 check_host_cflags -Wall
3744 check_host_cflags -O3
3745
3746 check_64bit(){
3747 arch32=$1
3748 arch64=$2
3749 expr=$3
3750 check_code cc "" "int test[2*($expr) - 1]" &&
3751 subarch=$arch64 || subarch=$arch32
3752 }
3753
3754 case "$arch" in
3755 aarch64|alpha|ia64)
3756 spic=$shared
3757 ;;
3758 mips)
3759 check_64bit mips mips64 '_MIPS_SIM > 1'
3760 spic=$shared
3761 ;;
3762 parisc)
3763 check_64bit parisc parisc64 'sizeof(void *) > 4'
3764 spic=$shared
3765 ;;
3766 ppc)
3767 check_64bit ppc ppc64 'sizeof(void *) > 4'
3768 spic=$shared
3769 ;;
3770 s390)
3771 check_64bit s390 s390x 'sizeof(void *) > 4'
3772 spic=$shared
3773 ;;
3774 sparc)
3775 check_64bit sparc sparc64 'sizeof(void *) > 4'
3776 spic=$shared
3777 ;;
3778 x86)
3779 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3780 if test "$subarch" = "x86_64"; then
3781 spic=$shared
3782 fi
3783 ;;
3784 esac
3785
3786 enable $subarch
3787 enabled spic && enable_weak pic
3788
3789 # OS specific
3790 case $target_os in
3791 aix)
3792 SHFLAGS=-shared
3793 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3794 enabled shared && add_ldflags -Wl,-brtl
3795 ;;
3796 android)
3797 disable symver
3798 enable section_data_rel_ro
3799 SLIB_INSTALL_NAME='$(SLIBNAME)'
3800 SLIB_INSTALL_LINKS=
3801 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3802 ;;
3803 haiku)
3804 prefix_default="/boot/common"
3805 network_extralibs="-lnetwork"
3806 host_libs=
3807 ;;
3808 sunos)
3809 SHFLAGS='-shared -Wl,-h,$$(@F)'
3810 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3811 network_extralibs="-lsocket -lnsl"
3812 # When using suncc to build, the Solaris linker will mark
3813 # an executable with each instruction set encountered by
3814 # the Solaris assembler. As our libraries contain their own
3815 # guards for processor-specific code, instead suppress
3816 # generation of the HWCAPS ELF section on Solaris x86 only.
3817 enabled_all suncc x86 &&
3818 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3819 add_ldflags -Wl,-M,mapfile
3820 nm_default='nm -P -g'
3821 version_script='-M'
3822 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3823 ;;
3824 netbsd)
3825 disable symver
3826 oss_indev_extralibs="-lossaudio"
3827 oss_outdev_extralibs="-lossaudio"
3828 ;;
3829 openbsd|bitrig)
3830 disable symver
3831 SHFLAGS='-shared'
3832 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3833 SLIB_INSTALL_LINKS=
3834 oss_indev_extralibs="-lossaudio"
3835 oss_outdev_extralibs="-lossaudio"
3836 ;;
3837 dragonfly)
3838 disable symver
3839 ;;
3840 freebsd)
3841 ;;
3842 bsd/os)
3843 add_extralibs -lpoll -lgnugetopt
3844 ;;
3845 darwin)
3846 enabled ppc && add_asflags -force_cpusubtype_ALL
3847 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3848 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3849 add_ldflags -Wl,-dynamic,-search_paths_first
3850 SLIBSUF=".dylib"
3851 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3852 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3853 objformat="macho"
3854 enabled x86_64 && objformat="macho64"
3855 enabled_any pic shared ||
3856 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3857 check_header dispatch/dispatch.h &&
3858 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3859 ;;
3860 msys*)
3861 die "Native MSYS builds are discouraged, please use the MINGW environment."
3862 ;;
3863 mingw32*|mingw64*)
3864 if test $target_os = "mingw32ce"; then
3865 disable network
3866 else
3867 target_os=mingw32
3868 fi
3869 LIBTARGET=i386
3870 if enabled x86_64; then
3871 LIBTARGET="i386:x86-64"
3872 elif enabled arm; then
3873 LIBTARGET=arm-wince
3874 fi
3875 check_ldflags -Wl,--nxcompat
3876 check_ldflags -Wl,--dynamicbase
3877 shlibdir_default="$bindir_default"
3878 SLIBPREF=""
3879 SLIBSUF=".dll"
3880 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3881 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3882 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3883 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3884 SLIB_INSTALL_LINKS=
3885 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3886 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3887 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3888 objformat="win32"
3889 dlltool="${cross_prefix}dlltool"
3890 ranlib=:
3891 enable dos_paths
3892 ;;
3893 win32|win64)
3894 disable symver
3895 if enabled shared; then
3896 # Link to the import library instead of the normal static library
3897 # for shared libs.
3898 LD_LIB='%.lib'
3899 # Cannot build both shared and static libs with MSVC or icl.
3900 disable static
3901 fi
3902 shlibdir_default="$bindir_default"
3903 SLIBPREF=""
3904 SLIBSUF=".dll"
3905 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3906 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3907 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3908 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3909 SLIB_INSTALL_LINKS=
3910 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3911 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3912 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3913 objformat="win32"
3914 ranlib=:
3915 enable dos_paths
3916 ;;
3917 cygwin*)
3918 target_os=cygwin
3919 shlibdir_default="$bindir_default"
3920 SLIBPREF="cyg"
3921 SLIBSUF=".dll"
3922 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3923 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3924 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3925 SLIB_INSTALL_LINKS=
3926 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3927 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3928 objformat="win32"
3929 enable dos_paths
3930 ;;
3931 *-dos|freedos|opendos)
3932 network_extralibs="-lsocket"
3933 objformat="coff"
3934 enable dos_paths
3935 add_cppflags -U__STRICT_ANSI__
3936 ;;
3937 linux)
3938 enable dv1394
3939 enable section_data_rel_ro
3940 ;;
3941 irix*)
3942 target_os=irix
3943 ranlib="echo ignoring ranlib"
3944 ;;
3945 os/2*)
3946 ln_s="cp -f"
3947 objformat="aout"
3948 add_cppflags -D_GNU_SOURCE
3949 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3950 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3951 LIBSUF="_s.a"
3952 SLIBPREF=""
3953 SLIBSUF=".dll"
3954 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3955 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3956 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3957 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3958 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3959 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3960 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3961 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3962 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3963 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3964 enable dos_paths
3965 ;;
3966 gnu/kfreebsd)
3967 add_cppflags -D_BSD_SOURCE
3968 ;;
3969 gnu)
3970 ;;
3971 qnx)
3972 add_cppflags -D_QNX_SOURCE
3973 network_extralibs="-lsocket"
3974 ;;
3975 symbian)
3976 SLIBSUF=".dll"
3977 enable dos_paths
3978 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3979 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3980 add_ldflags -Wl,--target1-abs,--no-undefined \
3981 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3982 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3983 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3984 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3985 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3986 ;;
3987 osf1)
3988 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3989 ;;
3990 minix)
3991 ;;
3992 plan9)
3993 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3994 -D_REENTRANT_SOURCE \
3995 -D_RESEARCH_SOURCE \
3996 -DFD_SETSIZE=96 \
3997 -DHAVE_SOCK_OPTS
3998 add_compat strtod.o strtod=avpriv_strtod
3999 network_extralibs='-lbsd'
4000 exeobjs=compat/plan9/main.o
4001 cp_f='cp'
4002 ;;
4003 none)
4004 ;;
4005 *)
4006 die "Unknown OS '$target_os'."
4007 ;;
4008 esac
4009
4010 # determine libc flavour
4011
4012 probe_libc(){
4013 pfx=$1
4014 pfx_no_=${pfx%_}
4015 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4016 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4017 eval ${pfx}libc_type=uclibc
4018 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4019 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4020 eval ${pfx}libc_type=glibc
4021 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4022 # MinGW headers can be installed on Cygwin, so check for newlib first.
4023 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4024 eval ${pfx}libc_type=newlib
4025 add_${pfx}cppflags -U__STRICT_ANSI__
4026 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4027 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4028 eval ${pfx}libc_type=mingw64
4029 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4030 eval test \$${pfx_no_}cc_type = "gcc" &&
4031 add_${pfx}cppflags -D__printf__=__gnu_printf__
4032 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4033 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4034 eval ${pfx}libc_type=mingw32
4035 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4036 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4037 die "ERROR: MinGW32 runtime version must be >= 3.15."
4038 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4039 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4040 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4041 eval test \$${pfx_no_}cc_type = "gcc" &&
4042 add_${pfx}cppflags -D__printf__=__gnu_printf__
4043 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4044 eval ${pfx}libc_type=msvcrt
4045 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4046 if [ "$pfx" = host_ ]; then
4047 add_host_cppflags -Dsnprintf=_snprintf
4048 else
4049 add_compat strtod.o strtod=avpriv_strtod
4050 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4051 _snprintf=avpriv_snprintf \
4052 vsnprintf=avpriv_vsnprintf
4053 fi
4054 fi
4055 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4056 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4057 # 0x601 by default unless something else is set by the user.
4058 # This can easily lead to us detecting functions only present
4059 # in such new versions and producing binaries requiring windows 7.0.
4060 # Therefore explicitly set the default to XP unless the user has
4061 # set something else on the command line.
4062 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4063 # family. For these cases, configure is free to use any functions
4064 # found in the SDK headers by default. (Alternatively, we could force
4065 # _WIN32_WINNT to 0x0602 in that case.)
4066 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4067 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4068 #ifdef WINAPI_FAMILY
4069 #include <winapifamily.h>
4070 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4071 #error not desktop
4072 #endif
4073 #endif
4074 EOF
4075 if [ "$pfx" = "" ]; then
4076 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4077 fi
4078 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4079 eval ${pfx}libc_type=klibc
4080 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4081 eval ${pfx}libc_type=bionic
4082 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4083 eval ${pfx}libc_type=solaris
4084 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4085 else
4086 eval ${pfx}libc_type=default
4087 add_${pfx}cppflags -D_DEFAULT_SOURCE
4088 fi
4089 }
4090
4091 probe_libc
4092 test -n "$libc_type" && enable libc_$libc_type
4093 probe_libc host_
4094 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4095
4096 case $libc_type in
4097 bionic)
4098 add_compat strtod.o strtod=avpriv_strtod
4099 ;;
4100 esac
4101
4102 # hacks for compiler/libc/os combinations
4103
4104 if enabled_all tms470 libc_glibc; then
4105 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4106 add_cppflags -D__USER_LABEL_PREFIX__=
4107 add_cppflags -D__builtin_memset=memset
4108 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4109 add_cflags -pds=48 # incompatible redefinition of macro
4110 fi
4111
4112 if enabled_all ccc libc_glibc; then
4113 add_ldflags -Wl,-z,now # calls to libots crash without this
4114 fi
4115
4116 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4117 add_cppflags '-I\$(SRC_PATH)/compat/float'
4118
4119 esc(){
4120 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4121 }
4122
4123 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4124
4125 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4126
4127 set_default $PATHS_LIST
4128 set_default nm
4129
4130 # we need to build at least one lib type
4131 if ! enabled_any static shared; then
4132 cat <<EOF
4133 At least one library type must be built.
4134 Specify --enable-static to build the static libraries or --enable-shared to
4135 build the shared libraries as well. To only build the shared libraries specify
4136 --disable-static in addition to --enable-shared.
4137 EOF
4138 exit 1
4139 fi
4140
4141 disabled optimizations || check_cflags -fomit-frame-pointer
4142
4143 enable_weak_pic() {
4144 disabled pic && return
4145 enable pic
4146 add_cppflags -DPIC
4147 case "$target_os" in
4148 mingw*|cygwin*)
4149 ;;
4150 *)
4151 add_cflags -fPIC
4152 ;;
4153 esac
4154 add_asflags -fPIC
4155 }
4156
4157 enabled pic && enable_weak_pic
4158
4159 check_cc <<EOF || die "Symbol mangling check failed."
4160 int ff_extern;
4161 EOF
4162 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4163 extern_prefix=${sym%%ff_extern*}
4164
4165 check_cc <<EOF && enable_weak inline_asm
4166 void foo(void) { __asm__ volatile ("" ::); }
4167 EOF
4168
4169 _restrict=
4170 for restrict_keyword in restrict __restrict__ __restrict; do
4171 check_cc <<EOF && _restrict=$restrict_keyword && break
4172 void foo(char * $restrict_keyword p);
4173 EOF
4174 done
4175
4176 check_cc <<EOF && enable pragma_deprecated
4177 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4178 EOF
4179
4180 check_cc <<EOF && enable attribute_packed
4181 struct { int x; } __attribute__((packed)) x;
4182 EOF
4183
4184 check_cc <<EOF && enable attribute_may_alias
4185 union { int x; } __attribute__((may_alias)) x;
4186 EOF
4187
4188 check_cc <<EOF || die "endian test failed"
4189 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4190 EOF
4191 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4192
4193 check_gas() {
4194 log "check_gas using '$as' as AS"
4195 # :vararg is used on aarch64, arm and ppc altivec
4196 check_as <<EOF || return 1
4197 .macro m n, y:vararg=0
4198 \n: .int \y
4199 .endm
4200 m x
4201 EOF
4202 # .altmacro is only used in arm asm
4203 ! enabled arm || check_as <<EOF || return 1
4204 .altmacro
4205 EOF
4206 enable gnu_as
4207 return 0
4208 }
4209
4210 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4211 nogas=:
4212 enabled_any arm aarch64 && nogas=die
4213 enabled_all ppc altivec && nogas=warn
4214 as_noop=-v
4215
4216 case $as_type in
4217 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4218 gcc) gaspp_as_type=gas ;;
4219 *) gaspp_as_type=$as_type ;;
4220 esac
4221
4222 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4223
4224 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4225 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4226
4227 if ! check_gas ; then
4228 as=${gas:=$as}
4229 check_gas || \
4230 $nogas "GNU assembler not found, install/update gas-preprocessor"
4231 fi
4232
4233 check_as <<EOF && enable as_func
4234 .func test
4235 .endfunc
4236 EOF
4237 fi
4238
4239 check_inline_asm inline_asm_labels '"1:\n"'
4240
4241 if enabled aarch64; then
4242 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4243 # internal assembler in clang 3.3 does not support this instruction
4244 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4245 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4246
4247 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4248
4249 elif enabled alpha; then
4250
4251 check_cflags -mieee
4252
4253 elif enabled arm; then
4254
4255 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4256 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4257 enabled thumb && check_cflags -mthumb || check_cflags -marm
4258
4259 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4260 enable vfp_args
4261 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4262 enable vfp_args
4263 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4264 case "${cross_prefix:-$cc}" in
4265 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4266 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4267 __asm__ (".eabi_attribute 28, 1");
4268 int main(void) { return 0; }
4269 EOF
4270 esac
4271 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4272 fi
4273
4274 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4275 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4276 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4277 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4278 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4279 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4280
4281 [ $target_os = linux ] || [ $target_os = android ] ||
4282 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4283 $ARCH_EXT_LIST_ARM
4284
4285 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4286
4287 check_as <<EOF && enable as_dn_directive
4288 ra .dn d0.i16
4289 .unreq ra
4290 EOF
4291 check_as <<EOF && enable as_fpu_directive
4292 .fpu neon
4293 EOF
4294
4295 # llvm's integrated assembler supports .object_arch from llvm 3.5
4296 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4297 .object_arch armv4
4298 EOF
4299
4300 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4301
4302 elif enabled mips; then
4303
4304 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4305
4306 # make sure that only an instruction set is enabled
4307 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4308
4309 if enabled mips64; then
4310 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4311 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4312 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4313 else
4314 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4315 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4316 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4317 fi
4318
4319 elif enabled parisc; then
4320
4321 if enabled gcc; then
4322 case $($cc -dumpversion) in
4323 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4324 esac
4325 fi
4326
4327 elif enabled ppc; then
4328
4329 enable local_aligned_8 local_aligned_16 local_aligned_32
4330
4331 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4332 check_inline_asm ibm_asm '"add 0, 0, 0"'
4333 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4334 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4335
4336 # AltiVec flags: The FSF version of GCC differs from the Apple version
4337 if enabled altivec; then
4338 check_cflags -maltivec -mabi=altivec &&
4339 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4340 check_cflags -faltivec
4341
4342 # check if our compiler supports Motorola AltiVec C API
4343 check_cc <<EOF || disable altivec
4344 $inc_altivec_h
4345 int main(void) {
4346 vector signed int v1 = (vector signed int) { 0 };
4347 vector signed int v2 = (vector signed int) { 1 };
4348 v1 = vec_add(v1, v2);
4349 return 0;
4350 }
4351 EOF
4352
4353 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4354 fi
4355
4356 if enabled vsx; then
4357 check_cflags -mvsx &&
4358 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4359 fi
4360
4361 if enabled power8; then
4362 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4363 fi
4364
4365 elif enabled x86; then
4366
4367 check_builtin rdtsc intrin.h "__rdtsc()"
4368 check_builtin mm_empty mmintrin.h "_mm_empty()"
4369
4370 enable local_aligned_8 local_aligned_16 local_aligned_32
4371
4372 # check whether EBP is available on x86
4373 # As 'i' is stored on the stack, this program will crash
4374 # if the base pointer is used to access it because the
4375 # base pointer is cleared in the inline assembly code.
4376 check_exec_crash <<EOF && enable ebp_available