examples/avcodec: split the remaining two examples into separate files
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-pod2man do not build manual pages
117 --disable-texi2html do not build HTML documentation
118 --disable-avdevice disable libavdevice build
119 --disable-avcodec disable libavcodec build
120 --disable-avformat disable libavformat build
121 --disable-avutil disable libavutil build
122 --disable-swscale disable libswscale build
123 --disable-avfilter disable video filter support [no]
124 --disable-avresample disable libavresample build [no]
125 --disable-pthreads disable pthreads [auto]
126 --disable-w32threads disable Win32 threads [auto]
127 --disable-network disable network support [no]
128 --disable-dct disable DCT code
129 --disable-error-resilience disable error resilience code
130 --disable-lsp disable LSP code
131 --disable-lzo disable LZO decoder code
132 --disable-mdct disable MDCT code
133 --disable-rdft disable RDFT code
134 --disable-fft disable FFT code
135 --disable-faan disable floating point AAN (I)DCT code
136
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
173
174 External library support:
175
176 Using any of the following switches will allow Libav to link to the
177 corresponding external library. All the components depending on that library
178 will become enabled, if all their other dependencies are met and they are not
179 explicitly disabled. E.g. --enable-libwavpack will enable linking to
180 libwavpack and allow the libwavpack encoder to be built, unless it is
181 specifically disabled with --disable-encoder=libwavpack.
182
183 Note that only the system libraries are auto-detected. All the other external
184 libraries must be explicitly enabled.
185
186 Also note that the following help text describes the purpose of the libraries
187 themselves, not all their features will necessarily be usable by Libav.
188
189 --enable-avisynth video frameserver
190 --enable-bzlib bzip2 compression [autodetect]
191 --enable-frei0r video filtering plugins
192 --enable-gnutls crypto
193 --enable-libbs2b Bauer stereophonic-to-binaural DSP
194 --enable-libcdio audio CD input
195 --enable-libdc1394 IEEE 1394/Firewire camera input
196 --enable-libdcadec DCA audio decoding
197 --enable-libfaac AAC audio encoding
198 --enable-libfdk-aac AAC audio encoding/decoding
199 --enable-libfontconfig font configuration and management
200 --enable-libfreetype font rendering
201 --enable-libgsm GSM audio encoding/decoding
202 --enable-libhdcd HDCD decoding filter
203 --enable-libilbc ILBC audio encoding/decoding
204 --enable-libkvazaar HEVC video encoding
205 --enable-libmp3lame MP3 audio encoding
206 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
207 --enable-libopencore-amrwb AMR-WB audio decoding
208 --enable-libopencv computer vision
209 --enable-libopenh264 H.264 video encoding/decoding
210 --enable-libopenjpeg JPEG 2000 image encoding/decoding
211 --enable-libopus Opus audio encoding/decoding
212 --enable-libpulse Pulseaudio sound server
213 --enable-librtmp RTMP streaming
214 --enable-libschroedinger Dirac video encoding/decoding
215 --enable-libsnappy snappy compression
216 --enable-libspeex Speex audio encoding/decoding
217 --enable-libtheora Theora video encoding/decoding
218 --enable-libtwolame MP2 audio encoding
219 --enable-libvo-aacenc AAC audio encoding
220 --enable-libvo-amrwbenc AMR-WB audio encoding
221 --enable-libvorbis Vorbis audio encoding/decoding
222 --enable-libvpx VP* video encoding/decoding
223 --enable-libwavpack Wavpack audio encoding/decoding
224 --enable-libwebp WebP image encoding/decoding
225 --enable-libx264 H.264 video encoding
226 --enable-libx265 HEVC video encoding
227 --enable-libxavs Chinese AVS video encoding
228 --enable-libxcb X window system protocol communication
229 --enable-libxcb-shm X11 shm communication [auto]
230 --enable-libxcb-xfixes X11 mouse rendering [auto]
231 --enable-libxvid MPEG-4 ASP video encoding
232 --enable-openssl crypto
233 --enable-zlib compression [autodetect]
234
235 The following libraries provide various hardware acceleration features:
236 --enable-cuda Nvidia CUDA (dynamically linked)
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
248
249 Toolchain options:
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
262 --nm=NM use nm tool
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-libs=ELIBS add ELIBS [$ELIBS]
283 --extra-version=STRING version string suffix []
284 --optflags=OPTFLAGS override optimization-related compiler flags
285 --build-suffix=SUFFIX library name suffix []
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-yasm disable use of nasm/yasm assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --enable-random randomly enable/disable components
341 --disable-random
342 --enable-random=LIST randomly enable/disable specific components or
343 --disable-random=LIST component groups. LIST is a comma-separated list
344 of NAME[:PROB] entries where NAME is a component
345 (group) and PROB the probability associated with
346 NAME (default 0.5).
347 --random-seed=VALUE seed value for --enable/disable-random
348 --disable-valgrind-backtrace do not print a backtrace under Valgrind
349 (only applies to --disable-optimizations builds)
350
351 NOTE: Object files are built at the place where configure is launched.
352 EOF
353 exit 0
354 }
355
356 quotes='""'
357
358 log(){
359 echo "$@" >> $logfile
360 }
361
362 log_file(){
363 log BEGIN $1
364 i=1
365 while read line; do
366 printf '%5s %s\n' "${i}" "${line}"
367 i=$(($i+1))
368 done < $1 >> $logfile
369 log END $1
370 }
371
372 echolog(){
373 log "$@"
374 echo "$@"
375 }
376
377 warn(){
378 log "WARNING: $*"
379 WARNINGS="${WARNINGS}WARNING: $*\n"
380 }
381
382 die(){
383 echolog "$@"
384 cat <<EOF
385
386 If you think configure made a mistake, make sure you are using the latest
387 version from Git. If the latest version fails, report the problem to the
388 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
389 EOF
390 if disabled logging; then
391 cat <<EOF
392 Rerun configure with logging enabled (do not use --disable-logging), and
393 include the log this produces with your report.
394 EOF
395 else
396 cat <<EOF
397 Include the log file "$logfile" produced by configure as this will help
398 solving the problem.
399 EOF
400 fi
401 exit 1
402 }
403
404 # Avoid locale weirdness, besides we really just want to translate ASCII.
405 toupper(){
406 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
407 }
408
409 tolower(){
410 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
411 }
412
413 c_escape(){
414 echo "$*" | sed 's/["\\]/\\\0/g'
415 }
416
417 sh_quote(){
418 v=$(echo "$1" | sed "s/'/'\\\\''/g")
419 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
420 echo "$v"
421 }
422
423 cleanws(){
424 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
425 }
426
427 filter(){
428 pat=$1
429 shift
430 for v; do
431 eval "case $v in $pat) echo $v ;; esac"
432 done
433 }
434
435 filter_out(){
436 pat=$1
437 shift
438 for v; do
439 eval "case $v in $pat) ;; *) echo $v ;; esac"
440 done
441 }
442
443 map(){
444 m=$1
445 shift
446 for v; do eval $m; done
447 }
448
449 add_suffix(){
450 suffix=$1
451 shift
452 for v; do echo ${v}${suffix}; done
453 }
454
455 set_all(){
456 value=$1
457 shift
458 for var in $*; do
459 eval $var=$value
460 done
461 }
462
463 set_weak(){
464 value=$1
465 shift
466 for var; do
467 eval : \${$var:=$value}
468 done
469 }
470
471 sanitize_var_name(){
472 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
473 }
474
475 set_safe(){
476 var=$1
477 shift
478 eval $(sanitize_var_name "$var")='$*'
479 }
480
481 get_safe(){
482 eval echo \$$(sanitize_var_name "$1")
483 }
484
485 pushvar(){
486 for pvar in $*; do
487 eval level=\${${pvar}_level:=0}
488 eval ${pvar}_${level}="\$$pvar"
489 eval ${pvar}_level=$(($level+1))
490 done
491 }
492
493 popvar(){
494 for pvar in $*; do
495 eval level=\${${pvar}_level:-0}
496 test $level = 0 && continue
497 eval level=$(($level-1))
498 eval $pvar="\${${pvar}_${level}}"
499 eval ${pvar}_level=$level
500 eval unset ${pvar}_${level}
501 done
502 }
503
504 enable(){
505 set_all yes $*
506 }
507
508 disable(){
509 set_all no $*
510 }
511
512 enable_weak(){
513 set_weak yes $*
514 }
515
516 disable_weak(){
517 set_weak no $*
518 }
519
520 enable_safe(){
521 for var; do
522 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523 done
524 }
525
526 disable_safe(){
527 for var; do
528 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 done
530 }
531
532 do_enable_deep(){
533 for var; do
534 enabled $var && continue
535 eval sel="\$${var}_select"
536 eval sgs="\$${var}_suggest"
537 pushvar var sgs
538 enable_deep $sel
539 popvar sgs
540 enable_deep_weak $sgs
541 popvar var
542 done
543 }
544
545 enable_deep(){
546 do_enable_deep $*
547 enable $*
548 }
549
550 enable_deep_weak(){
551 for var; do
552 disabled $var && continue
553 pushvar var
554 do_enable_deep $var
555 popvar var
556 enable_weak $var
557 done
558 }
559
560 enabled(){
561 test "${1#!}" = "$1" && op== || op=!=
562 eval test "x\$${1#!}" $op "xyes"
563 }
564
565 disabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xno"
568 }
569
570 enabled_all(){
571 for opt; do
572 enabled $opt || return 1
573 done
574 }
575
576 disabled_all(){
577 for opt; do
578 disabled $opt || return 1
579 done
580 }
581
582 enabled_any(){
583 for opt; do
584 enabled $opt && return 0
585 done
586 }
587
588 disabled_any(){
589 for opt; do
590 disabled $opt && return 0
591 done
592 return 1
593 }
594
595 set_default(){
596 for opt; do
597 eval : \${$opt:=\$${opt}_default}
598 done
599 }
600
601 is_in(){
602 value=$1
603 shift
604 for var in $*; do
605 [ $var = $value ] && return 0
606 done
607 return 1
608 }
609
610 do_check_deps(){
611 for cfg; do
612 cfg="${cfg#!}"
613 enabled ${cfg}_checking && die "Circular dependency for $cfg."
614 disabled ${cfg}_checking && continue
615 enable ${cfg}_checking
616 append allopts $cfg
617
618 eval dep_all="\$${cfg}_deps"
619 eval dep_any="\$${cfg}_deps_any"
620 eval dep_sel="\$${cfg}_select"
621 eval dep_sgs="\$${cfg}_suggest"
622 eval dep_ifa="\$${cfg}_if"
623 eval dep_ifn="\$${cfg}_if_any"
624
625 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
627 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
628
629 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
630 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
631 enabled_all $dep_all || disable $cfg
632 enabled_any $dep_any || disable $cfg
633 disabled_any $dep_sel && disable $cfg
634
635 if enabled $cfg; then
636 enable_deep $dep_sel
637 enable_deep_weak $dep_sgs
638 fi
639
640 disable ${cfg}_checking
641 done
642 }
643
644 check_deps(){
645 unset allopts
646
647 do_check_deps "$@"
648
649 for cfg in $allopts; do
650 enabled $cfg || continue
651 eval dep_extralibs="\$${cfg}_extralibs"
652 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
653 done
654 }
655
656 print_config(){
657 pfx=$1
658 files=$2
659 shift 2
660 map 'eval echo "$v \${$v:-no}"' "$@" |
661 awk "BEGIN { split(\"$files\", files) }
662 {
663 c = \"$pfx\" toupper(\$1);
664 v = \$2;
665 sub(/yes/, 1, v);
666 sub(/no/, 0, v);
667 for (f in files) {
668 file = files[f];
669 if (file ~ /\\.h\$/) {
670 printf(\"#define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.asm\$/) {
672 printf(\"%%define %s %d\\n\", c, v) >>file;
673 } else if (file ~ /\\.mak\$/) {
674 n = -v ? \"\" : \"!\";
675 printf(\"%s%s=yes\\n\", n, c) >>file;
676 }
677 }
678 }"
679 }
680
681 print_enabled(){
682 suf=$1
683 shift
684 for v; do
685 enabled $v && printf "%s\n" ${v%$suf}
686 done
687 }
688
689 append(){
690 var=$1
691 shift
692 eval "$var=\"\$$var $*\""
693 }
694
695 prepend(){
696 var=$1
697 shift
698 eval "$var=\"$* \$$var\""
699 }
700
701 unique(){
702 var=$1
703 uniq_list=""
704 for tok in $(eval echo \$$var); do
705 uniq_list="$(filter_out $tok $uniq_list) $tok"
706 done
707 eval "$var=\"${uniq_list}\""
708 }
709
710 add_cppflags(){
711 append CPPFLAGS "$@"
712 }
713
714 add_cflags(){
715 append CFLAGS $($cflags_filter "$@")
716 }
717
718 add_asflags(){
719 append ASFLAGS $($asflags_filter "$@")
720 }
721
722 add_objcflags(){
723 append OBJCFLAGS $($objcflags_filter "$@")
724 }
725
726 add_ldflags(){
727 append LDFLAGS $($ldflags_filter "$@")
728 }
729
730 add_ldexeflags(){
731 append LDEXEFLAGS $($ldflags_filter "$@")
732 }
733
734 add_stripflags(){
735 append STRIPFLAGS "$@"
736 }
737
738 add_extralibs(){
739 prepend extralibs $($ldflags_filter "$@")
740 }
741
742 add_host_cppflags(){
743 append host_cppflags "$@"
744 }
745
746 add_host_cflags(){
747 append host_cflags $($host_cflags_filter "$@")
748 }
749
750 add_host_ldflags(){
751 append host_ldflags $($host_ldflags_filter "$@")
752 }
753
754 add_compat(){
755 append compat_objs $1
756 shift
757 map 'add_cppflags -D$v' "$@"
758 }
759
760 check_cmd(){
761 log "$@"
762 "$@" >> $logfile 2>&1
763 }
764
765 cc_o(){
766 eval printf '%s\\n' $CC_O
767 }
768
769 cc_e(){
770 eval printf '%s\\n' $CC_E
771 }
772
773 check_cc(){
774 log check_cc "$@"
775 cat > $TMPC
776 log_file $TMPC
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
778 }
779
780 check_objcc(){
781 log check_objcc "$@"
782 cat > $TMPC
783 log_file $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
785 }
786
787 check_cpp(){
788 log check_cpp "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
792 }
793
794 as_o(){
795 eval printf '%s\\n' $AS_O
796 }
797
798 check_as(){
799 log check_as "$@"
800 cat > $TMPS
801 log_file $TMPS
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
803 }
804
805 check_inline_asm(){
806 log check_inline_asm "$@"
807 name="$1"
808 code="$2"
809 shift 2
810 disable $name
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
813 EOF
814 }
815
816 check_insn(){
817 log check_insn "$@"
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
820 }
821
822 check_yasm(){
823 log check_yasm "$@"
824 echo "$1" > $TMPS
825 log_file $TMPS
826 shift 1
827 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
828 }
829
830 ld_o(){
831 eval printf '%s\\n' $LD_O
832 }
833
834 check_ld(){
835 log check_ld "$@"
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
842 }
843
844 print_include(){
845 hdr=$1
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
849 }
850
851 check_code(){
852 log check_code "$@"
853 check=$1
854 headers=$2
855 code=$3
856 shift 3
857 {
858 for hdr in $headers; do
859 print_include $hdr
860 done
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
863 }
864
865 check_cppflags(){
866 log check_cppflags "$@"
867 check_cc "$@" <<EOF && append CPPFLAGS "$@"
868 int x;
869 EOF
870 }
871
872 test_cflags(){
873 log test_cflags "$@"
874 set -- $($cflags_filter "$@")
875 check_cc "$@" <<EOF
876 int x;
877 EOF
878 }
879
880 check_cflags(){
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
883 }
884
885 test_objcflags(){
886 log test_cflags "$@"
887 set -- $($cflags_filter "$@")
888 check_objcc "$@" <<EOF
889 int x;
890 EOF
891 }
892
893 check_objcflags(){
894 log check_cflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
896 }
897
898 test_ldflags(){
899 log test_ldflags "$@"
900 check_ld "$@" <<EOF
901 int main(void){ return 0; }
902 EOF
903 }
904
905 check_ldflags(){
906 log check_ldflags "$@"
907 test_ldflags "$@" && add_ldflags "$@"
908 }
909
910 test_stripflags(){
911 log test_stripflags "$@"
912 # call check_cc to get a fresh TMPO
913 check_cc <<EOF
914 int main(void) { return 0; }
915 EOF
916 check_cmd $strip $STRIPFLAGS "$@" $TMPO
917 }
918
919 check_stripflags(){
920 log check_stripflags "$@"
921 test_stripflags "$@" && add_stripflags "$@"
922 }
923
924 check_header(){
925 log check_header "$@"
926 header=$1
927 shift
928 disable_safe $header
929 check_cpp "$@" <<EOF && enable_safe $header
930 #include <$header>
931 int x;
932 EOF
933 }
934
935 check_func(){
936 log check_func "$@"
937 func=$1
938 shift
939 disable $func
940 check_ld "$@" <<EOF && enable $func
941 extern int $func();
942 int main(void){ $func(); }
943 EOF
944 }
945
946 check_mathfunc(){
947 log check_mathfunc "$@"
948 func=$1
949 narg=$2
950 shift 2
951 test $narg = 2 && args="f, g" || args="f"
952 disable $func
953 check_ld "$@" <<EOF && enable $func
954 #include <math.h>
955 float foo(float f, float g) { return $func($args); }
956 int main(void){ return 0; }
957 EOF
958 }
959
960 check_func_headers(){
961 log check_func_headers "$@"
962 headers=$1
963 funcs=$2
964 shift 2
965 {
966 for hdr in $headers; do
967 print_include $hdr
968 done
969 for func in $funcs; do
970 echo "long check_$func(void) { return (long) $func; }"
971 done
972 echo "int main(void) { return 0; }"
973 } | check_ld "$@" && enable $funcs && enable_safe $headers
974 }
975
976 check_cpp_condition(){
977 log check_cpp_condition "$@"
978 header=$1
979 condition=$2
980 shift 2
981 check_cpp "$@" <<EOF
982 #include <$header>
983 #if !($condition)
984 #error "unsatisfied condition: $condition"
985 #endif
986 EOF
987 }
988
989 test_cflags_cpp(){
990 log test_cflags_cpp "$@"
991 flags=$1
992 condition=$2
993 shift 2
994 set -- $($cflags_filter "$flags")
995 check_cpp "$@" <<EOF
996 #if !($condition)
997 #error "unsatisfied condition: $condition"
998 #endif
999 EOF
1000 }
1001
1002 check_lib(){
1003 log check_lib "$@"
1004 headers="$1"
1005 funcs="$2"
1006 shift 2
1007 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1008 }
1009
1010 check_pkg_config(){
1011 log check_pkg_config "$@"
1012 pkg="$1"
1013 headers="$2"
1014 funcs="$3"
1015 shift 3
1016 check_cmd $pkg_config --exists --print-errors $pkg || return
1017 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1018 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1019 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1020 set_safe "${pkg}_cflags" $pkg_cflags &&
1021 set_safe "${pkg}_libs" $pkg_libs
1022 }
1023
1024 check_exec(){
1025 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1026 }
1027
1028 check_exec_crash(){
1029 code=$(cat)
1030
1031 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1032 # are safe but may not be available everywhere. Thus we use
1033 # raise(SIGTERM) instead. The check is run in a subshell so we
1034 # can redirect the "Terminated" message from the shell. SIGBUS
1035 # is not defined by standard C so it is used conditionally.
1036
1037 (check_exec "$@") >> $logfile 2>&1 <<EOF
1038 #include <signal.h>
1039 static void sighandler(int sig){
1040 raise(SIGTERM);
1041 }
1042 int foo(void){
1043 $code
1044 }
1045 int (*func_ptr)(void) = foo;
1046 int main(void){
1047 signal(SIGILL, sighandler);
1048 signal(SIGFPE, sighandler);
1049 signal(SIGSEGV, sighandler);
1050 #ifdef SIGBUS
1051 signal(SIGBUS, sighandler);
1052 #endif
1053 return func_ptr();
1054 }
1055 EOF
1056 }
1057
1058 check_type(){
1059 log check_type "$@"
1060 headers=$1
1061 type=$2
1062 shift 2
1063 disable_safe "$type"
1064 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1065 }
1066
1067 check_struct(){
1068 log check_struct "$@"
1069 headers=$1
1070 struct=$2
1071 member=$3
1072 shift 3
1073 disable_safe "${struct}_${member}"
1074 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1075 enable_safe "${struct}_${member}"
1076 }
1077
1078 check_builtin(){
1079 log check_builtin "$@"
1080 name=$1
1081 headers=$2
1082 builtin=$3
1083 shift 3
1084 disable "$name"
1085 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1086 }
1087
1088 check_compile_assert(){
1089 log check_compile_assert "$@"
1090 name=$1
1091 headers=$2
1092 condition=$3
1093 shift 3
1094 disable "$name"
1095 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1096 }
1097
1098 require(){
1099 name="$1"
1100 headers="$2"
1101 func="$3"
1102 shift 3
1103 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1104 }
1105
1106 require_pkg_config(){
1107 pkg="$1"
1108 check_pkg_config "$@" || die "ERROR: $pkg not found"
1109 add_cflags $(get_safe "${pkg}_cflags")
1110 add_extralibs $(get_safe "${pkg}_libs")
1111 }
1112
1113 hostcc_e(){
1114 eval printf '%s\\n' $HOSTCC_E
1115 }
1116
1117 hostcc_o(){
1118 eval printf '%s\\n' $HOSTCC_O
1119 }
1120
1121 check_host_cc(){
1122 log check_host_cc "$@"
1123 cat > $TMPC
1124 log_file $TMPC
1125 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1126 }
1127
1128 check_host_cpp(){
1129 log check_host_cpp "$@"
1130 cat > $TMPC
1131 log_file $TMPC
1132 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1133 }
1134
1135 check_host_cppflags(){
1136 log check_host_cppflags "$@"
1137 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1138 int x;
1139 EOF
1140 }
1141
1142 check_host_cflags(){
1143 log check_host_cflags "$@"
1144 set -- $($host_cflags_filter "$@")
1145 check_host_cc "$@" <<EOF && append host_cflags "$@"
1146 int x;
1147 EOF
1148 }
1149
1150 check_host_cpp_condition(){
1151 log check_host_cpp_condition "$@"
1152 header=$1
1153 condition=$2
1154 shift 2
1155 check_host_cpp "$@" <<EOF
1156 #include <$header>
1157 #if !($condition)
1158 #error "unsatisfied condition: $condition"
1159 #endif
1160 EOF
1161 }
1162
1163 apply(){
1164 file=$1
1165 shift
1166 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1167 }
1168
1169 cp_if_changed(){
1170 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1171 mkdir -p "$(dirname $2)"
1172 $cp_f "$1" "$2"
1173 }
1174
1175 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1176 # system-dependent things.
1177
1178 AVCODEC_COMPONENTS="
1179 bsfs
1180 decoders
1181 encoders
1182 hwaccels
1183 parsers
1184 "
1185
1186 AVDEVICE_COMPONENTS="
1187 indevs
1188 outdevs
1189 "
1190 AVFILTER_COMPONENTS="
1191 filters
1192 "
1193 AVFORMAT_COMPONENTS="
1194 demuxers
1195 muxers
1196 protocols
1197 "
1198
1199 AVRESAMPLE_COMPONENTS=""
1200 AVUTIL_COMPONENTS=""
1201
1202 COMPONENT_LIST="
1203 $AVCODEC_COMPONENTS
1204 $AVDEVICE_COMPONENTS
1205 $AVFILTER_COMPONENTS
1206 $AVFORMAT_COMPONENTS
1207 $AVRESAMPLE_COMPONENTS
1208 $AVUTIL_COMPONENTS
1209 "
1210
1211 EXAMPLE_LIST="
1212 decode_audio_example
1213 decode_video_example
1214 encode_audio_example
1215 encode_video_example
1216 filter_audio_example
1217 metadata_example
1218 output_example
1219 qsvdec_example
1220 transcode_aac_example
1221 "
1222
1223 HWACCEL_LIBRARY_NONFREE_LIST="
1224 cuda
1225 libnpp
1226 "
1227 HWACCEL_LIBRARY_LIST="
1228 $HWACCEL_LIBRARY_NONFREE_LIST
1229 d3d11va
1230 dxva2
1231 libmfx
1232 mmal
1233 nvenc
1234 omx
1235 vaapi
1236 vda
1237 vdpau
1238 "
1239
1240 EXTERNAL_LIBRARY_GPL_LIST="
1241 libcdio
1242 libx264
1243 libx265
1244 libxavs
1245 libxvid
1246 "
1247
1248 EXTERNAL_LIBRARY_NONFREE_LIST="
1249 libfaac
1250 libfdk_aac
1251 openssl
1252 "
1253
1254 EXTERNAL_LIBRARY_VERSION3_LIST="
1255 libopencore_amrnb
1256 libopencore_amrwb
1257 libvo_aacenc
1258 libvo_amrwbenc
1259 "
1260
1261 EXTERNAL_LIBRARY_LIST="
1262 $EXTERNAL_LIBRARY_GPL_LIST
1263 $EXTERNAL_LIBRARY_NONFREE_LIST
1264 $EXTERNAL_LIBRARY_VERSION3_LIST
1265 avisynth
1266 bzlib
1267 frei0r
1268 gnutls
1269 libbs2b
1270 libdc1394
1271 libdcadec
1272 libfontconfig
1273 libfreetype
1274 libgsm
1275 libhdcd
1276 libilbc
1277 libkvazaar
1278 libmp3lame
1279 libopencv
1280 libopenh264
1281 libopenjpeg
1282 libopus
1283 libpulse
1284 librtmp
1285 libschroedinger
1286 libsnappy
1287 libspeex
1288 libtheora
1289 libtwolame
1290 libvorbis
1291 libvpx
1292 libwavpack
1293 libwebp
1294 libxcb
1295 libxcb_shm
1296 libxcb_xfixes
1297 zlib
1298 "
1299
1300 FEATURE_LIST="
1301 gray
1302 hardcoded_tables
1303 omx_rpi
1304 runtime_cpudetect
1305 safe_bitstream_reader
1306 shared
1307 small
1308 sram
1309 static
1310 swscale_alpha
1311 "
1312
1313 LIBRARY_LIST="
1314 avcodec
1315 avdevice
1316 avfilter
1317 avformat
1318 avresample
1319 avutil
1320 swscale
1321 "
1322
1323 LICENSE_LIST="
1324 gpl
1325 nonfree
1326 version3
1327 "
1328
1329 PROGRAM_LIST="
1330 avconv
1331 avplay
1332 avprobe
1333 "
1334
1335 SUBSYSTEM_LIST="
1336 dct
1337 doc
1338 error_resilience
1339 faan
1340 fft
1341 lsp
1342 lzo
1343 mdct
1344 network
1345 rdft
1346 "
1347
1348 CONFIG_LIST="
1349 $COMPONENT_LIST
1350 $EXAMPLE_LIST
1351 $EXTERNAL_LIBRARY_LIST
1352 $HWACCEL_LIBRARY_LIST
1353 $FEATURE_LIST
1354 $LICENSE_LIST
1355 $LIBRARY_LIST
1356 $PROGRAM_LIST
1357 $SUBSYSTEM_LIST
1358 neon_clobber_test
1359 pic
1360 pod2man
1361 texi2html
1362 thumb
1363 valgrind_backtrace
1364 xmm_clobber_test
1365 "
1366
1367 THREADS_LIST="
1368 pthreads
1369 w32threads
1370 "
1371
1372 ATOMICS_LIST="
1373 atomics_gcc
1374 atomics_suncc
1375 atomics_win32
1376 "
1377
1378 ARCH_LIST="
1379 aarch64
1380 alpha
1381 arm
1382 avr32
1383 avr32_ap
1384 avr32_uc
1385 bfin
1386 ia64
1387 m68k
1388 mips
1389 mips64
1390 parisc
1391 ppc
1392 ppc64
1393 s390
1394 sh4
1395 sparc
1396 sparc64
1397 tilegx
1398 tilepro
1399 tomi
1400 x86
1401 x86_32
1402 x86_64
1403 "
1404
1405 ARCH_EXT_LIST_ARM="
1406 armv5te
1407 armv6
1408 armv6t2
1409 armv8
1410 neon
1411 vfp
1412 vfpv3
1413 "
1414
1415 ARCH_EXT_LIST_X86_SIMD="
1416 amd3dnow
1417 amd3dnowext
1418 avx
1419 avx2
1420 fma3
1421 fma4
1422 mmx
1423 mmxext
1424 sse
1425 sse2
1426 sse3
1427 sse4
1428 sse42
1429 ssse3
1430 xop
1431 "
1432
1433 ARCH_EXT_LIST_PPC="
1434 altivec
1435 dcbzl
1436 ldbrx
1437 power8
1438 ppc4xx
1439 vsx
1440 "
1441
1442 ARCH_EXT_LIST_X86="
1443 $ARCH_EXT_LIST_X86_SIMD
1444 cpunop
1445 i686
1446 "
1447
1448 ARCH_EXT_LIST_MIPS="
1449 loongson
1450 mips32r1
1451 mips64r1
1452 mips32r2
1453 mips64r2
1454 mips32r6
1455 mips64r6
1456 "
1457
1458 ARCH_EXT_LIST="
1459 $ARCH_EXT_LIST_ARM
1460 $ARCH_EXT_LIST_MIPS
1461 $ARCH_EXT_LIST_PPC
1462 $ARCH_EXT_LIST_X86
1463 vis
1464 "
1465
1466 ARCH_FEATURES="
1467 aligned_stack
1468 fast_64bit
1469 fast_clz
1470 fast_cmov
1471 local_aligned_8
1472 local_aligned_16
1473 local_aligned_32
1474 simd_align_16
1475 simd_align_32
1476 "
1477
1478 BUILTIN_LIST="
1479 atomic_cas_ptr
1480 machine_rw_barrier
1481 MemoryBarrier
1482 mm_empty
1483 rdtsc
1484 sem_timedwait
1485 sync_val_compare_and_swap
1486 "
1487 HAVE_LIST_CMDLINE="
1488 inline_asm
1489 symver
1490 yasm
1491 "
1492
1493 HAVE_LIST_PUB="
1494 bigendian
1495 fast_unaligned
1496 "
1497
1498 HEADERS_LIST="
1499 AVFoundation_AVFoundation_h
1500 alsa_asoundlib_h
1501 altivec_h
1502 arpa_inet_h
1503 cdio_paranoia_h
1504 cdio_paranoia_paranoia_h
1505 dispatch_dispatch_h
1506 dev_bktr_ioctl_bt848_h
1507 dev_bktr_ioctl_meteor_h
1508 dev_ic_bt8xx_h
1509 dev_video_bktr_ioctl_bt848_h
1510 dev_video_meteor_ioctl_meteor_h
1511 direct_h
1512 dlfcn_h
1513 d3d11_h
1514 dxva_h
1515 gsm_h
1516 io_h
1517 mach_mach_time_h
1518 machine_ioctl_bt848_h
1519 machine_ioctl_meteor_h
1520 malloc_h
1521 poll_h
1522 sndio_h
1523 soundcard_h
1524 stdatomic_h
1525 sys_mman_h
1526 sys_param_h
1527 sys_resource_h
1528 sys_select_h
1529 sys_soundcard_h
1530 sys_time_h
1531 sys_un_h
1532 sys_videoio_h
1533 unistd_h
1534 valgrind_valgrind_h
1535 windows_h
1536 winsock2_h
1537 "
1538
1539 INTRINSICS_LIST="
1540 intrinsics_neon
1541 "
1542
1543 MATH_FUNCS="
1544 atanf
1545 atan2f
1546 cbrtf
1547 cosf
1548 exp2
1549 exp2f
1550 expf
1551 isinf
1552 isnan
1553 ldexpf
1554 llrint
1555 llrintf
1556 log2
1557 log2f
1558 log10f
1559 lrint
1560 lrintf
1561 powf
1562 rint
1563 round
1564 roundf
1565 sinf
1566 trunc
1567 truncf
1568 "
1569
1570 SYSTEM_FUNCS="
1571 aligned_malloc
1572 clock_gettime
1573 closesocket
1574 CommandLineToArgvW
1575 CoTaskMemFree
1576 CryptGenRandom
1577 dlopen
1578 fcntl
1579 flt_lim
1580 fork
1581 getaddrinfo
1582 gethrtime
1583 getopt
1584 GetProcessAffinityMask
1585 GetProcessMemoryInfo
1586 GetProcessTimes
1587 getrusage
1588 GetSystemTimeAsFileTime
1589 gettimeofday
1590 gmtime_r
1591 inet_aton
1592 isatty
1593 jack_port_get_latency_range
1594 LoadLibrary
1595 localtime_r
1596 mach_absolute_time
1597 MapViewOfFile
1598 memalign
1599 mkstemp
1600 mmap
1601 mprotect
1602 nanosleep
1603 posix_memalign
1604 sched_getaffinity
1605 SetConsoleTextAttribute
1606 setmode
1607 setrlimit
1608 Sleep
1609 strerror_r
1610 sysconf
1611 sysctl
1612 usleep
1613 VirtualAlloc
1614 "
1615
1616 TOOLCHAIN_FEATURES="
1617 as_dn_directive
1618 as_fpu_directive
1619 as_func
1620 as_object_arch
1621 asm_mod_q
1622 attribute_may_alias
1623 attribute_packed
1624 ebp_available
1625 ebx_available
1626 gnu_as
1627 ibm_asm
1628 inline_asm_labels
1629 pragma_deprecated
1630 symver_asm_label
1631 symver_gnu_asm
1632 vfp_args
1633 xform_asm
1634 xmm_clobbers
1635 "
1636
1637 TYPES_LIST="
1638 CONDITION_VARIABLE_Ptr
1639 socklen_t
1640 struct_addrinfo
1641 struct_group_source_req
1642 struct_ip_mreq_source
1643 struct_ipv6_mreq
1644 struct_pollfd
1645 struct_rusage_ru_maxrss
1646 struct_sockaddr_in6
1647 struct_sockaddr_sa_len
1648 struct_sockaddr_storage
1649 struct_v4l2_frmivalenum_discrete
1650 "
1651
1652 HAVE_LIST="
1653 $ARCH_EXT_LIST
1654 $(add_suffix _external $ARCH_EXT_LIST)
1655 $(add_suffix _inline $ARCH_EXT_LIST)
1656 $ARCH_FEATURES
1657 $BUILTIN_LIST
1658 $HAVE_LIST_CMDLINE
1659 $HAVE_LIST_PUB
1660 $HEADERS_LIST
1661 $INTRINSICS_LIST
1662 $MATH_FUNCS
1663 $SYSTEM_FUNCS
1664 $THREADS_LIST
1665 $TOOLCHAIN_FEATURES
1666 $TYPES_LIST
1667 dos_paths
1668 dxva2_lib
1669 libc_msvcrt
1670 libdc1394_1
1671 libdc1394_2
1672 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1673 sdl
1674 section_data_rel_ro
1675 threads
1676 vaapi_drm
1677 vaapi_x11
1678 vdpau_x11
1679 xlib
1680 "
1681
1682 # options emitted with CONFIG_ prefix but not available on the command line
1683 CONFIG_EXTRA="
1684 aandcttables
1685 ac3dsp
1686 audio_frame_queue
1687 audiodsp
1688 blockdsp
1689 bswapdsp
1690 cabac
1691 dirac_parse
1692 dvprofile
1693 faandct
1694 faanidct
1695 fdctdsp
1696 flacdsp
1697 fmtconvert
1698 g722dsp
1699 gcrypt
1700 gmp
1701 golomb
1702 gplv3
1703 h263dsp
1704 h264chroma
1705 h264dsp
1706 h264parse
1707 h264pred
1708 h264qpel
1709 hpeldsp
1710 huffman
1711 huffyuvdsp
1712 huffyuvencdsp
1713 idctdsp
1714 iirfilter
1715 imdct15
1716 intrax8
1717 iso_media
1718 ividsp
1719 jpegtables
1720 libx262
1721 lgplv3
1722 lpc
1723 lzf
1724 me_cmp
1725 mpeg_er
1726 mpegaudio
1727 mpegaudiodsp
1728 mpegvideo
1729 mpegvideoenc
1730 mss34dsp
1731 pixblockdsp
1732 qpeldsp
1733 qsv
1734 qsvdec
1735 qsvenc
1736 rangecoder
1737 riffdec
1738 riffenc
1739 rtpdec
1740 rtpenc_chain
1741 rv34dsp
1742 sinewin
1743 snappy
1744 srtp
1745 startcode
1746 texturedsp
1747 texturedspenc
1748 tpeldsp
1749 vaapi_encode
1750 vc1dsp
1751 videodsp
1752 vp3dsp
1753 vp56dsp
1754 vp8dsp
1755 wma_freqs
1756 wmv2dsp
1757 "
1758
1759 CMDLINE_SELECT="
1760 $ARCH_EXT_LIST
1761 $CONFIG_LIST
1762 $HAVE_LIST_CMDLINE
1763 $THREADS_LIST
1764 asm
1765 cross_compile
1766 debug
1767 extra_warnings
1768 logging
1769 lto
1770 optimizations
1771 rpath
1772 "
1773
1774 PATHS_LIST="
1775 bindir
1776 datadir
1777 docdir
1778 incdir
1779 libdir
1780 mandir
1781 prefix
1782 shlibdir
1783 "
1784
1785 CMDLINE_SET="
1786 $PATHS_LIST
1787 ar
1788 arch
1789 as
1790 build_suffix
1791 cc
1792 objcc
1793 cpu
1794 cross_prefix
1795 custom_allocator
1796 dep_cc
1797 env
1798 extra_version
1799 host_cc
1800 host_cflags
1801 host_ld
1802 host_ldflags
1803 host_libs
1804 host_os
1805 ld
1806 logfile
1807 malloc_prefix
1808 nm
1809 optflags
1810 pkg_config
1811 pkg_config_flags
1812 random_seed
1813 samples
1814 sysinclude
1815 sysroot
1816 target_exec
1817 target_os
1818 target_path
1819 target_samples
1820 toolchain
1821 "
1822
1823 CMDLINE_APPEND="
1824 extra_cflags
1825 extra_objcflags
1826 host_cppflags
1827 "
1828
1829 # code dependency declarations
1830
1831 # architecture extensions
1832
1833 armv5te_deps="arm"
1834 armv6_deps="arm"
1835 armv6t2_deps="arm"
1836 armv8_deps="aarch64"
1837 neon_deps_any="aarch64 arm"
1838 intrinsics_neon_deps="neon"
1839 vfp_deps_any="aarch64 arm"
1840 vfpv3_deps="vfp"
1841
1842 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1843
1844 altivec_deps="ppc"
1845 ppc4xx_deps="ppc"
1846 vsx_deps="altivec"
1847 power8_deps="vsx"
1848
1849 cpunop_deps="i686"
1850 x86_64_select="i686"
1851 x86_64_suggest="fast_cmov"
1852
1853 amd3dnow_deps="mmx"
1854 amd3dnowext_deps="amd3dnow"
1855 i686_deps="x86"
1856 mmx_deps="x86"
1857 mmxext_deps="mmx"
1858 sse_deps="mmxext"
1859 sse2_deps="sse"
1860 sse3_deps="sse2"
1861 ssse3_deps="sse3"
1862 sse4_deps="ssse3"
1863 sse42_deps="sse4"
1864 avx_deps="sse42"
1865 xop_deps="avx"
1866 fma3_deps="avx"
1867 fma4_deps="avx"
1868 avx2_deps="avx"
1869
1870 mmx_external_deps="yasm"
1871 mmx_inline_deps="inline_asm"
1872 mmx_suggest="mmx_external mmx_inline"
1873
1874 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1875 eval dep=\$${ext}_deps
1876 eval ${ext}_external_deps='"${dep}_external"'
1877 eval ${ext}_inline_deps='"${dep}_inline"'
1878 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1879 done
1880
1881 aligned_stack_if_any="aarch64 ppc x86"
1882 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1883 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1884 fast_unaligned_if_any="aarch64 ppc x86"
1885 simd_align_16_if_any="altivec neon sse"
1886 simd_align_32_if_any="avx"
1887
1888 # system capabilities
1889 symver_if_any="symver_asm_label symver_gnu_asm"
1890 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1891
1892 # threading support
1893 atomics_gcc_if="sync_val_compare_and_swap"
1894 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1895 atomics_win32_if="MemoryBarrier"
1896 atomics_native_if_any="$ATOMICS_LIST"
1897 w32threads_deps="atomics_native"
1898 threads_if_any="$THREADS_LIST"
1899
1900 # subsystems
1901 dct_select="rdft"
1902 dirac_parse_select="golomb"
1903 error_resilience_select="me_cmp"
1904 faandct_deps="faan fdctdsp"
1905 faanidct_deps="faan idctdsp"
1906 h264dsp_select="startcode"
1907 intrax8_select="blockdsp idctdsp"
1908 mdct_select="fft"
1909 rdft_select="fft"
1910 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1911 mpeg_er_select="error_resilience"
1912 mpegaudio_select="mpegaudiodsp"
1913 mpegaudiodsp_select="dct"
1914 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1915 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1916 vc1dsp_select="h264chroma qpeldsp startcode"
1917
1918 # decoders / encoders
1919 aac_decoder_select="imdct15 mdct sinewin"
1920 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1921 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1922 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1923 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1924 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1925 adpcm_g722_decoder_select="g722dsp"
1926 adpcm_g722_encoder_select="g722dsp"
1927 aic_decoder_select="golomb idctdsp"
1928 alac_encoder_select="lpc"
1929 als_decoder_select="bswapdsp"
1930 amrnb_decoder_select="lsp"
1931 amrwb_decoder_select="lsp"
1932 amv_decoder_select="sp5x_decoder"
1933 ape_decoder_select="bswapdsp"
1934 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1935 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1936 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1937 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1938 atrac1_decoder_select="mdct sinewin"
1939 atrac3_decoder_select="mdct"
1940 atrac3p_decoder_select="mdct sinewin"
1941 bink_decoder_select="blockdsp hpeldsp"
1942 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1943 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1944 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1945 cllc_decoder_select="bswapdsp"
1946 comfortnoise_encoder_select="lpc"
1947 cook_decoder_select="audiodsp mdct sinewin"
1948 cscd_decoder_select="lzo"
1949 cscd_decoder_suggest="zlib"
1950 dca_decoder_select="fmtconvert mdct"
1951 dds_decoder_select="texturedsp"
1952 dnxhd_decoder_select="blockdsp idctdsp"
1953 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1954 dvvideo_decoder_select="dvprofile idctdsp"
1955 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1956 dxa_decoder_deps="zlib"
1957 dxv_decoder_select="lzf texturedsp"
1958 eac3_decoder_select="ac3_decoder"
1959 eac3_encoder_select="ac3_encoder"
1960 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1961 eatgq_decoder_select="aandcttables idctdsp"
1962 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1963 exr_decoder_deps="zlib"
1964 ffv1_decoder_select="golomb rangecoder"
1965 ffv1_encoder_select="rangecoder"
1966 ffvhuff_decoder_select="huffyuv_decoder"
1967 ffvhuff_encoder_select="huffyuv_encoder"
1968 fic_decoder_select="golomb"
1969 flac_decoder_select="flacdsp golomb"
1970 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1971 flashsv_decoder_deps="zlib"
1972 flashsv_encoder_deps="zlib"
1973 flashsv2_decoder_deps="zlib"
1974 flv_decoder_select="h263_decoder"
1975 flv_encoder_select="h263_encoder"
1976 fourxm_decoder_select="blockdsp bswapdsp"
1977 fraps_decoder_select="bswapdsp huffman"
1978 g2m_decoder_deps="zlib"
1979 g2m_decoder_select="blockdsp idctdsp jpegtables"
1980 h261_decoder_select="mpeg_er mpegvideo"
1981 h261_encoder_select="aandcttables mpegvideoenc"
1982 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1983 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1984 h263i_decoder_select="h263_decoder"
1985 h263p_encoder_select="h263_encoder"
1986 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1987 h264_decoder_suggest="error_resilience"
1988 hap_decoder_select="snappy texturedsp"
1989 hap_encoder_deps="libsnappy"
1990 hap_encoder_select="texturedspenc"
1991 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1992 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1993 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1994 iac_decoder_select="imc_decoder"
1995 imc_decoder_select="bswapdsp fft mdct sinewin"
1996 indeo3_decoder_select="hpeldsp"
1997 indeo4_decoder_select="ividsp"
1998 indeo5_decoder_select="ividsp"
1999 interplay_video_decoder_select="hpeldsp"
2000 jpegls_decoder_select="golomb mjpeg_decoder"
2001 jpegls_encoder_select="golomb"
2002 jv_decoder_select="blockdsp"
2003 lagarith_decoder_select="huffyuvdsp"
2004 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2005 loco_decoder_select="golomb"
2006 magicyuv_decoder_select="huffyuvdsp"
2007 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2008 metasound_decoder_select="lsp mdct sinewin"
2009 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2010 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2011 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2012 mjpegb_decoder_select="mjpeg_decoder"
2013 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2014 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2015 mlp_decoder_select="mlp_parser"
2016 motionpixels_decoder_select="bswapdsp"
2017 mp1_decoder_select="mpegaudio"
2018 mp1float_decoder_select="mpegaudio"
2019 mp2_decoder_select="mpegaudio"
2020 mp2float_decoder_select="mpegaudio"
2021 mp3_decoder_select="mpegaudio"
2022 mp3adu_decoder_select="mpegaudio"
2023 mp3adufloat_decoder_select="mpegaudio"
2024 mp3float_decoder_select="mpegaudio"
2025 mp3on4_decoder_select="mpegaudio"
2026 mp3on4float_decoder_select="mpegaudio"
2027 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2028 mpc8_decoder_select="mpegaudiodsp"
2029 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2030 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2031 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2032 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2033 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2034 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2035 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2036 mpeg4_encoder_select="h263_encoder"
2037 msa1_decoder_select="mss34dsp"
2038 msmpeg4v1_decoder_select="h263_decoder"
2039 msmpeg4v2_decoder_select="h263_decoder"
2040 msmpeg4v2_encoder_select="h263_encoder"
2041 msmpeg4v3_decoder_select="h263_decoder"
2042 msmpeg4v3_encoder_select="h263_encoder"
2043 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2044 mts2_decoder_select="mss34dsp"
2045 mxpeg_decoder_select="mjpeg_decoder"
2046 nellymoser_decoder_select="mdct sinewin"
2047 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2048 nuv_decoder_select="idctdsp lzo"
2049 on2avc_decoder_select="mdct"
2050 opus_decoder_deps="avresample"
2051 opus_decoder_select="imdct15"
2052 png_decoder_deps="zlib"
2053 png_encoder_deps="zlib"
2054 png_encoder_select="huffyuvencdsp"
2055 prores_decoder_select="idctdsp"
2056 prores_encoder_select="fdctdsp"
2057 qcelp_decoder_select="lsp"
2058 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2059 ra_144_encoder_select="audio_frame_queue lpc"
2060 ralf_decoder_select="golomb"
2061 rscc_decoder_deps="zlib"
2062 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2063 rv10_encoder_select="h263_encoder"
2064 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2065 rv20_encoder_select="h263_encoder"
2066 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2067 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2068 screenpresso_decoder_deps="zlib"
2069 shorten_decoder_select="golomb"
2070 sipr_decoder_select="lsp"
2071 sp5x_decoder_select="mjpeg_decoder"
2072 svq1_decoder_select="hpeldsp"
2073 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2074 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2075 svq3_decoder_suggest="zlib"
2076 tak_decoder_select="audiodsp"
2077 tdsc_decoder_deps="zlib"
2078 tdsc_decoder_select="mjpeg_decoder"
2079 theora_decoder_select="vp3_decoder"
2080 thp_decoder_select="mjpeg_decoder"
2081 tiff_decoder_suggest="zlib"
2082 tiff_encoder_suggest="zlib"
2083 truehd_decoder_select="mlp_decoder"
2084 truemotion2_decoder_select="bswapdsp"
2085 truespeech_decoder_select="bswapdsp"
2086 tscc_decoder_deps="zlib"
2087 txd_decoder_select="texturedsp"
2088 twinvq_decoder_select="mdct lsp sinewin"
2089 utvideo_decoder_select="bswapdsp"
2090 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2091 vble_decoder_select="huffyuvdsp"
2092 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2093 vc1image_decoder_select="vc1_decoder"
2094 vorbis_decoder_select="mdct"
2095 vorbis_encoder_select="mdct"
2096 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2097 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2098 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2099 vp6a_decoder_select="vp6_decoder"
2100 vp6f_decoder_select="vp6_decoder"
2101 vp7_decoder_select="h264pred videodsp vp8dsp"
2102 vp8_decoder_select="h264pred videodsp vp8dsp"
2103 vp9_decoder_select="videodsp"
2104 webp_decoder_select="vp8_decoder"
2105 wmapro_decoder_select="mdct sinewin wma_freqs"
2106 wmav1_decoder_select="mdct sinewin wma_freqs"
2107 wmav1_encoder_select="mdct sinewin wma_freqs"
2108 wmav2_decoder_select="mdct sinewin wma_freqs"
2109 wmav2_encoder_select="mdct sinewin wma_freqs"
2110 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2111 wmv1_decoder_select="h263_decoder"
2112 wmv1_encoder_select="h263_encoder"
2113 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2114 wmv2_encoder_select="h263_encoder wmv2dsp"
2115 wmv3_decoder_select="vc1_decoder"
2116 wmv3image_decoder_select="wmv3_decoder"
2117 zerocodec_decoder_deps="zlib"
2118 zlib_decoder_deps="zlib"
2119 zlib_encoder_deps="zlib"
2120 zmbv_decoder_deps="zlib"
2121 zmbv_encoder_deps="zlib"
2122
2123 # hardware accelerators
2124 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2125 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2126 vaapi_deps="va_va_h"
2127 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2128 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2129 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2130
2131 h263_vaapi_hwaccel_deps="vaapi"
2132 h263_vaapi_hwaccel_select="h263_decoder"
2133 h264_d3d11va_hwaccel_deps="d3d11va"
2134 h264_d3d11va_hwaccel_select="h264_decoder"
2135 h264_dxva2_hwaccel_deps="dxva2"
2136 h264_dxva2_hwaccel_select="h264_decoder"
2137 h264_mmal_decoder_deps="mmal"
2138 h264_mmal_decoder_select="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 mpeg1_vdpau_hwaccel_deps="vdpau"
2158 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2159 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2160 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_dxva2_hwaccel_deps="dxva2"
2162 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2163 mpeg2_mmal_decoder_deps="mmal"
2164 mpeg2_mmal_decoder_select="mmal"
2165 mpeg2_mmal_hwaccel_deps="mmal"
2166 mpeg2_qsv_hwaccel_deps="libmfx"
2167 mpeg2_vaapi_hwaccel_deps="vaapi"
2168 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2169 mpeg2_vdpau_hwaccel_deps="vdpau"
2170 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2171 mpeg4_omx_encoder_deps="omx"
2172 mpeg4_vaapi_hwaccel_deps="vaapi"
2173 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2174 mpeg4_vdpau_hwaccel_deps="vdpau"
2175 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2176 vc1_d3d11va_hwaccel_deps="d3d11va"
2177 vc1_d3d11va_hwaccel_select="vc1_decoder"
2178 vc1_dxva2_hwaccel_deps="dxva2"
2179 vc1_dxva2_hwaccel_select="vc1_decoder"
2180 vc1_mmal_decoder_deps="mmal"
2181 vc1_mmal_decoder_select="mmal"
2182 vc1_mmal_hwaccel_deps="mmal"
2183 vc1_vaapi_hwaccel_deps="vaapi"
2184 vc1_vaapi_hwaccel_select="vc1_decoder"
2185 vc1_vdpau_hwaccel_deps="vdpau"
2186 vc1_vdpau_hwaccel_select="vc1_decoder"
2187 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2188 vp8_vaapi_hwaccel_select="vp8_decoder"
2189 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2190 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2191 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2192 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2193
2194 # hardware-accelerated codecs
2195 nvenc_deps_any="dlopen LoadLibrary"
2196 nvenc_extralibs='$ldl'
2197 omx_deps="dlopen pthreads"
2198 omx_extralibs='$ldl'
2199 qsvdec_select="qsv"
2200 qsvenc_select="qsv"
2201 vaapi_encode_deps="vaapi"
2202
2203 hwupload_cuda_filter_deps="cuda"
2204 scale_npp_filter_deps="cuda libnpp"
2205
2206 h264_nvenc_encoder_deps="nvenc"
2207 h264_qsv_decoder_deps="libmfx"
2208 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2209 h264_qsv_encoder_deps="libmfx"
2210 h264_qsv_encoder_select="qsvenc"
2211 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2212 h264_vaapi_encoder_select="vaapi_encode golomb"
2213
2214 hevc_nvenc_encoder_deps="nvenc"
2215 hevc_qsv_decoder_deps="libmfx"
2216 hevc_qsv_encoder_deps="libmfx"
2217 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2218 hevc_qsv_encoder_select="qsvenc"
2219 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2220 hevc_vaapi_encoder_select="vaapi_encode golomb"
2221 mpeg2_qsv_decoder_deps="libmfx"
2222 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2223 mpeg2_qsv_encoder_deps="libmfx"
2224 mpeg2_qsv_encoder_select="qsvenc"
2225
2226 nvenc_h264_encoder_deps="nvenc"
2227 nvenc_hevc_encoder_deps="nvenc"
2228
2229 # parsers
2230 h264_parser_select="golomb h264dsp h264parse"
2231 hevc_parser_select="golomb"
2232 mpegvideo_parser_select="mpegvideo"
2233 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2234 vc1_parser_select="vc1dsp"
2235
2236 # bitstream_filters
2237 mjpeg2jpeg_bsf_select="jpegtables"
2238
2239 # external libraries
2240 libdcadec_decoder_deps="libdcadec"
2241 libfaac_encoder_deps="libfaac"
2242 libfaac_encoder_select="audio_frame_queue"
2243 libfdk_aac_decoder_deps="libfdk_aac"
2244 libfdk_aac_encoder_deps="libfdk_aac"
2245 libfdk_aac_encoder_select="audio_frame_queue"
2246 libgsm_decoder_deps="libgsm"
2247 libgsm_encoder_deps="libgsm"
2248 libgsm_ms_decoder_deps="libgsm"
2249 libgsm_ms_encoder_deps="libgsm"
2250 libilbc_decoder_deps="libilbc"
2251 libilbc_encoder_deps="libilbc"
2252 libkvazaar_encoder_deps="libkvazaar"
2253 libmp3lame_encoder_deps="libmp3lame"
2254 libmp3lame_encoder_select="audio_frame_queue"
2255 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2256 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2257 libopencore_amrnb_encoder_select="audio_frame_queue"
2258 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2259 libopenh264_decoder_deps="libopenh264"
2260 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2261 libopenh264_encoder_deps="libopenh264"
2262 libopenjpeg_decoder_deps="libopenjpeg"
2263 libopenjpeg_encoder_deps="libopenjpeg"
2264 libopus_decoder_deps="libopus"
2265 libopus_encoder_deps="libopus"
2266 libopus_encoder_select="audio_frame_queue"
2267 libschroedinger_decoder_deps="libschroedinger"
2268 libschroedinger_encoder_deps="libschroedinger"
2269 libspeex_decoder_deps="libspeex"
2270 libspeex_encoder_deps="libspeex"
2271 libspeex_encoder_select="audio_frame_queue"
2272 libtheora_encoder_deps="libtheora"
2273 libtwolame_encoder_deps="libtwolame"
2274 libvo_aacenc_encoder_deps="libvo_aacenc"
2275 libvo_aacenc_encoder_select="audio_frame_queue"
2276 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2277 libvorbis_encoder_deps="libvorbis"
2278 libvorbis_encoder_select="audio_frame_queue"
2279 libvpx_vp8_decoder_deps="libvpx"
2280 libvpx_vp8_encoder_deps="libvpx"
2281 libvpx_vp9_decoder_deps="libvpx"
2282 libvpx_vp9_encoder_deps="libvpx"
2283 libwavpack_encoder_deps="libwavpack"
2284 libwebp_encoder_deps="libwebp"
2285 libx262_encoder_deps="libx262"
2286 libx264_encoder_deps="libx264"
2287 libx265_encoder_deps="libx265"
2288 libxavs_encoder_deps="libxavs"
2289 libxvid_encoder_deps="libxvid"
2290
2291 # demuxers / muxers
2292 ac3_demuxer_select="ac3_parser"
2293 asf_demuxer_select="riffdec"
2294 asf_muxer_select="riffenc"
2295 asf_stream_muxer_select="asf_muxer"
2296 avi_demuxer_select="iso_media riffdec"
2297 avi_muxer_select="riffenc"
2298 avisynth_demuxer_deps="avisynth"
2299 avisynth_demuxer_select="riffdec"
2300 caf_demuxer_select="iso_media riffdec"
2301 dash_muxer_select="mp4_muxer"
2302 dirac_demuxer_select="dirac_parser"
2303 dv_demuxer_select="dvprofile"
2304 dv_muxer_select="dvprofile"
2305 dxa_demuxer_select="riffdec"
2306 eac3_demuxer_select="ac3_parser"
2307 f4v_muxer_select="mov_muxer"
2308 flac_demuxer_select="flac_parser"
2309 hds_muxer_select="flv_muxer"
2310 hls_muxer_select="mpegts_muxer"
2311 ipod_muxer_select="mov_muxer"
2312 ismv_muxer_select="mov_muxer"
2313 matroska_audio_muxer_select="matroska_muxer"
2314 matroska_demuxer_select="iso_media riffdec"
2315 matroska_demuxer_suggest="bzlib lzo zlib"
2316 matroska_muxer_select="iso_media riffenc"
2317 mmf_muxer_select="riffenc"
2318 mov_demuxer_select="iso_media riffdec"
2319 mov_demuxer_suggest="zlib"
2320 mov_muxer_select="iso_media riffenc rtpenc_chain"
2321 mp3_demuxer_select="mpegaudio_parser"
2322 mp4_muxer_select="mov_muxer"
2323 mpegts_demuxer_select="iso_media"
2324 mpegts_muxer_select="adts_muxer latm_muxer"
2325 mpegtsraw_demuxer_select="mpegts_demuxer"
2326 mxf_d10_muxer_select="mxf_muxer"
2327 nut_muxer_select="riffenc"
2328 nuv_demuxer_select="riffdec"
2329 oga_muxer_select="ogg_muxer"
2330 ogg_demuxer_select="dirac_parse"
2331 opus_muxer_select="ogg_muxer"
2332 psp_muxer_select="mov_muxer"
2333 rtp_demuxer_select="sdp_demuxer"
2334 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2335 rtsp_demuxer_select="http_protocol rtpdec"
2336 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2337 sap_demuxer_select="sdp_demuxer"
2338 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2339 sdp_demuxer_select="rtpdec"
2340 smoothstreaming_muxer_select="ismv_muxer"
2341 spdif_muxer_select="aac_parser"
2342 spx_muxer_select="ogg_muxer"
2343 swf_demuxer_suggest="zlib"
2344 tak_demuxer_select="tak_parser"
2345 tg2_muxer_select="mov_muxer"
2346 tgp_muxer_select="mov_muxer"
2347 w64_demuxer_select="wav_demuxer"
2348 wav_demuxer_select="riffdec"
2349 wav_muxer_select="riffenc"
2350 webm_muxer_select="iso_media riffenc"
2351 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2352 wtv_demuxer_select="mpegts_demuxer riffdec"
2353 xmv_demuxer_select="riffdec"
2354 xwma_demuxer_select="riffdec"
2355
2356 # indevs / outdevs
2357 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2358 alsa_outdev_deps="alsa_asoundlib_h"
2359 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2360 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2361 dv1394_indev_deps="dv1394"
2362 dv1394_indev_select="dv_demuxer"
2363 fbdev_indev_deps="linux_fb_h"
2364 jack_indev_deps="jack_jack_h"
2365 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2366 libcdio_indev_deps="libcdio"
2367 libdc1394_indev_deps="libdc1394"
2368 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2369 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2370 pulse_indev_deps="libpulse"
2371 sndio_indev_deps="sndio_h"
2372 sndio_outdev_deps="sndio_h"
2373 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2374 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2375 vfwcap_indev_extralibs="-lavicap32"
2376 xcbgrab_indev_deps="libxcb"
2377
2378 # protocols
2379 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2380 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2381 ffrtmpcrypt_protocol_select="tcp_protocol"
2382 ffrtmphttp_protocol_deps="!librtmp_protocol"
2383 ffrtmphttp_protocol_select="http_protocol"
2384 gopher_protocol_select="network"
2385 http_protocol_select="tcp_protocol"
2386 httpproxy_protocol_select="tcp_protocol"
2387 https_protocol_select="tls_protocol"
2388 icecast_protocol_select="http_protocol"
2389 librtmp_protocol_deps="librtmp"
2390 librtmpe_protocol_deps="librtmp"
2391 librtmps_protocol_deps="librtmp"
2392 librtmpt_protocol_deps="librtmp"
2393 librtmpte_protocol_deps="librtmp"
2394 mmsh_protocol_select="http_protocol"
2395 mmst_protocol_select="network"
2396 rtmp_protocol_deps="!librtmp_protocol"
2397 rtmp_protocol_select="tcp_protocol"
2398 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2399 rtmps_protocol_deps="!librtmp_protocol"
2400 rtmps_protocol_select="tls_protocol"
2401 rtmpt_protocol_select="ffrtmphttp_protocol"
2402 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2403 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2404 rtp_protocol_select="udp_protocol"
2405 sctp_protocol_deps="struct_sctp_event_subscribe"
2406 sctp_protocol_select="network"
2407 srtp_protocol_select="rtp_protocol srtp"
2408 tcp_protocol_select="network"
2409 tls_gnutls_protocol_deps="gnutls"
2410 tls_gnutls_protocol_select="tcp_protocol"
2411 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2412 tls_openssl_protocol_select="tcp_protocol"
2413 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2414 udp_protocol_select="network"
2415 unix_protocol_deps="sys_un_h"
2416 unix_protocol_select="network"
2417
2418 # filters
2419 blackframe_filter_deps="gpl"
2420 boxblur_filter_deps="gpl"
2421 bs2b_filter_deps="libbs2b"
2422 cropdetect_filter_deps="gpl"
2423 deinterlace_qsv_filter_deps="libmfx"
2424 delogo_filter_deps="gpl"
2425 drawtext_filter_deps="libfreetype"
2426 frei0r_filter_deps="frei0r dlopen"
2427 frei0r_filter_extralibs='$ldl'
2428 frei0r_src_filter_deps="frei0r dlopen"
2429 frei0r_src_filter_extralibs='$ldl'
2430 hdcd_filter_deps="libhdcd"
2431 hqdn3d_filter_deps="gpl"
2432 interlace_filter_deps="gpl"
2433 ocv_filter_deps="libopencv"
2434 resample_filter_deps="avresample"
2435 scale_filter_deps="swscale"
2436 scale_qsv_filter_deps="libmfx"
2437 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2438
2439 # examples
2440 decode_audio_example_deps="avcodec avutil"
2441 decode_video_example_deps="avcodec avutil"
2442 encode_audio_example_deps="avcodec avutil"
2443 encode_video_example_deps="avcodec avutil"
2444 filter_audio_example_deps="avfilter avutil"
2445 metadata_example_deps="avformat avutil"
2446 output_example_deps="avcodec avformat avutil swscale"
2447 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2448 transcode_aac_example_deps="avcodec avformat avresample"
2449
2450 # libraries, in linking order
2451 avcodec_deps="avutil"
2452 avdevice_deps="avformat avcodec avutil"
2453 avfilter_deps="avutil"
2454 avformat_deps="avcodec avutil"
2455 avresample_deps="avutil"
2456 swscale_deps="avutil"
2457
2458 # programs
2459 avconv_deps="avcodec avfilter avformat avresample swscale"
2460 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2461 fps_filter null_filter resample_filter scale_filter
2462 trim_filter"
2463 avplay_deps="avcodec avfilter avformat avresample sdl"
2464 avplay_libs='$sdl_libs'
2465 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2466 avprobe_deps="avcodec avformat"
2467
2468 # documentation
2469 pod2man_deps="doc"
2470 texi2html_deps="doc"
2471
2472 # default parameters
2473
2474 logfile="config.log"
2475
2476 # installation paths
2477 prefix_default="/usr/local"
2478 bindir_default='${prefix}/bin'
2479 datadir_default='${prefix}/share/avconv'
2480 docdir_default='${prefix}/share/doc/libav'
2481 incdir_default='${prefix}/include'
2482 libdir_default='${prefix}/lib'
2483 mandir_default='${prefix}/share/man'
2484 shlibdir_default="$libdir_default"
2485
2486 # toolchain
2487 ar_default="ar"
2488 cc_default="gcc"
2489 host_cc_default="gcc"
2490 cp_f="cp -f"
2491 ln_s="ln -s -f"
2492 nm_default="nm -g"
2493 objformat="elf"
2494 pkg_config_default=pkg-config
2495 ranlib="ranlib"
2496 strip="strip"
2497 version_script='--version-script'
2498 yasmexe="yasm"
2499
2500 # machine
2501 arch_default=$(uname -m)
2502 cpu="generic"
2503 intrinsics="none"
2504
2505 # OS
2506 target_os_default=$(tolower $(uname -s))
2507 host_os=$target_os_default
2508
2509 # configurable options
2510 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2511
2512 enable asm
2513 enable debug
2514 enable doc
2515 enable faan faandct faanidct
2516 enable optimizations
2517 enable safe_bitstream_reader
2518 enable static
2519 enable swscale_alpha
2520 enable valgrind_backtrace
2521
2522 # By default, enable only those hwaccels that have no external dependencies.
2523 enable d3d11va dxva2 vda vdpau
2524
2525 # build settings
2526 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2527 LIBPREF="lib"
2528 LIBSUF=".a"
2529 FULLNAME='$(NAME)$(BUILDSUF)'
2530 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2531 SLIBPREF="lib"
2532 SLIBSUF=".so"
2533 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2534 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2535 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2536 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2537 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2538 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2539 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2540
2541 asflags_filter=echo
2542 cflags_filter=echo
2543 ldflags_filter=echo
2544
2545 AS_C='-c'
2546 AS_O='-o $@'
2547 CC_C='-c'
2548 CC_E='-E -o $@'
2549 CC_O='-o $@'
2550 OBJCC_C='-c'
2551 OBJCC_E='-E -o $@'
2552 OBJCC_O='-o $@'
2553 LD_O='-o $@'
2554 LD_LIB='-l%'
2555 LD_PATH='-L'
2556 HOSTCC_C='-c'
2557 HOSTCC_E='-E -o $@'
2558 HOSTCC_O='-o $@'
2559 HOSTLD_O='-o $@'
2560
2561 host_libs='-lm'
2562 host_cflags_filter=echo
2563 host_ldflags_filter=echo
2564
2565 target_path='$(CURDIR)'
2566
2567 # since the object filename is not given with the -MM flag, the compiler
2568 # is only able to print the basename, and we must add the path ourselves
2569 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2570 DEPFLAGS='-MM'
2571
2572 # find source path
2573 if test -f configure; then
2574 source_path=.
2575 else
2576 source_path=$(cd $(dirname "$0"); pwd)
2577 echo "$source_path" | grep -q '[[:blank:]]' &&
2578 die "Out of tree builds are impossible with whitespace in source path."
2579 test -e "$source_path/config.h" &&
2580 die "Out of tree builds are impossible with config.h in source dir."
2581 fi
2582
2583 for v in "$@"; do
2584 r=${v#*=}
2585 l=${v%"$r"}
2586 r=$(sh_quote "$r")
2587 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2588 done
2589
2590 find_things(){
2591 thing=$1
2592 pattern=$2
2593 file=$source_path/$3
2594 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2595 }
2596
2597 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2598 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2599 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2600 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2601 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2602 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2603 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2604 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2605 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2606
2607 find_things_extern(){
2608 thing=$1
2609 pattern=$2
2610 file=$source_path/$3
2611 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2612 }
2613
2614 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2615 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2616
2617 ALL_COMPONENTS="
2618 $BSF_LIST
2619 $DECODER_LIST
2620 $DEMUXER_LIST
2621 $ENCODER_LIST
2622 $FILTER_LIST
2623 $HWACCEL_LIST
2624 $INDEV_LIST
2625 $MUXER_LIST
2626 $OUTDEV_LIST
2627 $PARSER_LIST
2628 $PROTOCOL_LIST
2629 "
2630
2631 for n in $COMPONENT_LIST; do
2632 v=$(toupper ${n%s})_LIST
2633 eval enable \$$v
2634 eval ${n}_if_any="\$$v"
2635 done
2636
2637 enable $ARCH_EXT_LIST
2638
2639 die_unknown(){
2640 echo "Unknown option \"$1\"."
2641 echo "See $0 --help for available options."
2642 exit 1
2643 }
2644
2645 print_3_columns() {
2646 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2647 }
2648
2649 show_list() {
2650 suffix=_$1
2651 shift
2652 echo $* | sed s/$suffix//g | print_3_columns
2653 exit 0
2654 }
2655
2656 rand_list(){
2657 IFS=', '
2658 set -- $*
2659 unset IFS
2660 for thing; do
2661 comp=${thing%:*}
2662 prob=${thing#$comp}
2663 prob=${prob#:}
2664 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2665 echo "prob ${prob:-0.5}"
2666 printf '%s\n' $comp
2667 done
2668 }
2669
2670 do_random(){
2671 action=$1
2672 shift
2673 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2674 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2675 }
2676
2677 for opt do
2678 optval="${opt#*=}"
2679 case "$opt" in
2680 --extra-ldflags=*)
2681 add_ldflags $optval
2682 ;;
2683 --extra-ldexeflags=*)
2684 add_ldexeflags $optval
2685 ;;
2686 --extra-libs=*)
2687 add_extralibs $optval
2688 ;;
2689 --disable-devices)
2690 disable $INDEV_LIST $OUTDEV_LIST
2691 ;;
2692 --enable-debug=*)
2693 debuglevel="$optval"
2694 ;;
2695 --disable-programs)
2696 disable $PROGRAM_LIST
2697 ;;
2698 --disable-everything)
2699 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2700 ;;
2701 --disable-all)
2702 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2703 disable $LIBRARY_LIST $PROGRAM_LIST doc
2704 ;;
2705 --enable-random|--disable-random)
2706 action=${opt%%-random}
2707 do_random ${action#--} $COMPONENT_LIST
2708 ;;
2709 --enable-random=*|--disable-random=*)
2710 action=${opt%%-random=*}
2711 do_random ${action#--} $optval
2712 ;;
2713 --enable-*=*|--disable-*=*)
2714 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2715 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2716 eval list=\$$(toupper $thing)_LIST
2717 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2718 $action $(filter "$name" $list)
2719 ;;
2720 --enable-avserver|--disable-avserver*)
2721 warn "avserver has been removed, the ${opt} option is only"\
2722 "provided for compatibility and will be removed in the future"
2723 ;;
2724 --enable-?*|--disable-?*)
2725 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2726 if is_in $option $COMPONENT_LIST; then
2727 test $action = disable && action=unset
2728 eval $action \$$(toupper ${option%s})_LIST
2729 elif is_in $option $CMDLINE_SELECT; then
2730 $action $option
2731 else
2732 die_unknown $opt
2733 fi
2734 ;;
2735 --list-*)
2736 NAME="${opt#--list-}"
2737 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2738 NAME=${NAME%s}
2739 eval show_list $NAME \$$(toupper $NAME)_LIST
2740 ;;
2741 --help|-h) show_help
2742 ;;
2743 *)
2744 optname="${opt%%=*}"
2745 optname="${optname#--}"
2746 optname=$(echo "$optname" | sed 's/-/_/g')
2747 if is_in $optname $CMDLINE_SET; then
2748 eval $optname='$optval'
2749 elif is_in $optname $CMDLINE_APPEND; then
2750 append $optname "$optval"
2751 else
2752 die_unknown $opt
2753 fi
2754 ;;
2755 esac
2756 done
2757
2758 for e in $env; do
2759 eval "export $e"
2760 done
2761
2762 disabled logging && logfile=/dev/null
2763
2764 # Disable all the library-specific components if the library itself
2765 # is disabled, see AVCODEC_LIST and following _LIST variables.
2766
2767 disable_components(){
2768 disabled ${1} && disable $(
2769 eval components="\$$(toupper ${1})_COMPONENTS"
2770 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2771 )
2772 }
2773
2774 map 'disable_components $v' $LIBRARY_LIST
2775
2776 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2777 set >> $logfile
2778
2779 case "$toolchain" in
2780 *-asan)
2781 cc_default="${toolchain%-asan}"
2782 add_cflags -fsanitize=address
2783 add_ldflags -fsanitize=address
2784 ;;
2785 *-msan)
2786 cc_default="${toolchain%-msan}"
2787 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2788 add_ldflags -fsanitize=memory
2789 ;;
2790 *-tsan)
2791 cc_default="${toolchain%-tsan}"
2792 add_cflags -fsanitize=thread -pie
2793 add_ldflags -fsanitize=thread -pie
2794 case "$toolchain" in
2795 gcc-tsan)
2796 add_cflags -fPIC
2797 add_ldflags -fPIC
2798 ;;
2799 esac
2800 ;;
2801 *-usan)
2802 cc_default="${toolchain%-usan}"
2803 add_cflags -fsanitize=undefined
2804 add_ldflags -fsanitize=undefined
2805 case "$toolchain" in
2806 clang-usan)
2807 add_cflags -O1
2808 ;;
2809 esac
2810 ;;
2811 valgrind-*)
2812 target_exec_default="valgrind"
2813 case "$toolchain" in
2814 valgrind-massif)
2815 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2816 ;;
2817 valgrind-memcheck)
2818 target_exec_args="--track-origins=yes --leak-check=full"
2819 ;;
2820 esac
2821 ;;
2822 msvc)
2823 # Check whether the current MSVC version needs the C99 converter.
2824 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2825 # support enough of C99 to build libav. Default to the new
2826 # behaviour if the regexp was unable to match anything, since this
2827 # successfully parses the version number of existing supported
2828 # versions that require the converter (MSVC 2010 and 2012).
2829 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2830 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2831 cc_default="cl"
2832 else
2833 cc_default="c99wrap cl"
2834 fi
2835 ld_default="$source_path/compat/windows/mslink"
2836 nm_default="dumpbin -symbols"
2837 ar_default="lib"
2838 case "$arch" in
2839 arm*)
2840 as_default="armasm"
2841 ;;
2842 esac
2843 target_os_default="win32"
2844 # Use a relative path for TMPDIR. This makes sure all the
2845 # ffconf temp files are written with a relative path, avoiding
2846 # issues with msys/win32 path conversion for MSVC parameters
2847 # such as -Fo<file> or -out:<file>.
2848 TMPDIR=.
2849 ;;
2850 icl)
2851 cc_default="icl"
2852 ld_default="xilink"
2853 nm_default="dumpbin -symbols"
2854 ar_default="xilib"
2855 target_os_default="win32"
2856 TMPDIR=.
2857 ;;
2858 gcov)
2859 add_cflags -fprofile-arcs -ftest-coverage
2860 add_ldflags -fprofile-arcs -ftest-coverage
2861 ;;
2862 llvm-cov)
2863 add_cflags -fprofile-arcs -ftest-coverage
2864 add_ldflags --coverage
2865 ;;
2866 hardened)
2867 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2868 add_cflags -fno-strict-overflow -fstack-protector-all
2869 add_ldflags -Wl,-z,relro -Wl,-z,now
2870 ;;
2871 ?*)
2872 die "Unknown toolchain $toolchain"
2873 ;;
2874 esac
2875
2876 test -n "$cross_prefix" && enable cross_compile
2877
2878 if enabled cross_compile; then
2879 test -n "$arch" && test -n "$target_os" ||
2880 die "Must specify target arch and OS when cross-compiling"
2881 fi
2882
2883 ar_default="${cross_prefix}${ar_default}"
2884 cc_default="${cross_prefix}${cc_default}"
2885 occ_default="${cross_prefix}${occ_default}"
2886 nm_default="${cross_prefix}${nm_default}"
2887 pkg_config_default="${cross_prefix}${pkg_config_default}"
2888 ranlib="${cross_prefix}${ranlib}"
2889 strip="${cross_prefix}${strip}"
2890
2891 sysinclude_default="${sysroot}/usr/include"
2892
2893 set_default arch cc pkg_config sysinclude target_exec target_os
2894 enabled cross_compile || host_cc_default=$cc
2895 set_default host_cc
2896
2897 if ! $pkg_config --version >/dev/null 2>&1; then
2898 warn "$pkg_config not found, library detection may fail."
2899 pkg_config=false
2900 fi
2901
2902 exesuf() {
2903 case $1 in
2904 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2905 esac
2906 }
2907
2908 EXESUF=$(exesuf $target_os)
2909 HOSTEXESUF=$(exesuf $host_os)
2910
2911 # set temporary file name
2912 : ${TMPDIR:=$TEMPDIR}
2913 : ${TMPDIR:=$TMP}
2914 : ${TMPDIR:=/tmp}
2915
2916 if ! check_cmd mktemp -u XXXXXX; then
2917 # simple replacement for missing mktemp
2918 # NOT SAFE FOR GENERAL USE
2919 mktemp(){
2920 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2921 }
2922 fi
2923
2924 tmpfile(){
2925 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2926 (set -C; exec > $tmp) 2>/dev/null ||
2927 die "Unable to create temporary file in $TMPDIR."
2928 append TMPFILES $tmp
2929 eval $1=$tmp
2930 }
2931
2932 trap 'rm -f -- $TMPFILES' EXIT
2933
2934 tmpfile TMPASM .asm
2935 tmpfile TMPC .c
2936 tmpfile TMPE $EXESUF
2937 tmpfile TMPH .h
2938 tmpfile TMPO .o
2939 tmpfile TMPS .S
2940 tmpfile TMPSH .sh
2941 tmpfile TMPV .ver
2942
2943 unset -f mktemp
2944
2945 chmod +x $TMPE
2946
2947 # make sure we can execute files in $TMPDIR
2948 cat > $TMPSH 2>> $logfile <<EOF
2949 #! /bin/sh
2950 EOF
2951 chmod +x $TMPSH >> $logfile 2>&1
2952 if ! $TMPSH >> $logfile 2>&1; then
2953 cat <<EOF
2954 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2955 variable to another directory and make sure that it is not mounted noexec.
2956 EOF
2957 die "Sanity test failed."
2958 fi
2959
2960 armasm_flags(){
2961 for flag; do
2962 case $flag in
2963 # Filter out MSVC cl.exe options from cflags that shouldn't
2964 # be passed to gas-preprocessor
2965 -M[TD]*) ;;
2966 *) echo $flag ;;
2967 esac
2968 done
2969 }
2970
2971 ccc_flags(){
2972 for flag; do
2973 case $flag in
2974 -std=c99) echo -c99 ;;
2975 -mcpu=*) echo -arch ${flag#*=} ;;
2976 -mieee) echo -ieee ;;
2977 -O*|-fast) echo $flag ;;
2978 -fno-math-errno) echo -assume nomath_errno ;;
2979 -g) echo -g3 ;;
2980 -Wall) echo -msg_enable level2 ;;
2981 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2982 -Wl,*) echo $flag ;;
2983 -f*|-W*) ;;
2984 *) echo $flag ;;
2985 esac
2986 done
2987 }
2988
2989 cparser_flags(){
2990 for flag; do
2991 case $flag in
2992 -Wno-switch) echo -Wno-switch-enum ;;
2993 -Wno-format-zero-length) ;;
2994 -Wdisabled-optimization) ;;
2995 -Wno-pointer-sign) echo -Wno-other ;;
2996 *) echo $flag ;;
2997 esac
2998 done
2999 }
3000
3001 msvc_common_flags(){
3002 for flag; do
3003 case $flag in
3004 # In addition to specifying certain flags under the compiler
3005 # specific filters, they must be specified here as well or else the
3006 # generic catch all at the bottom will print the original flag.
3007 -Wall) ;;
3008 -std=c99) ;;
3009 # Common flags
3010 -fomit-frame-pointer) ;;
3011 -g) echo -Z7 ;;
3012 -fno-math-errno) ;;
3013 -fno-common) ;;
3014 -fno-signed-zeros) ;;
3015 -fPIC) ;;
3016 -mthumb) ;;
3017 -march=*) ;;
3018 -lz) echo zlib.lib ;;
3019 -lavifil32) echo vfw32.lib ;;
3020 -lavicap32) echo vfw32.lib user32.lib ;;
3021 -lx264) echo libx264.lib ;;
3022 -l*) echo ${flag#-l}.lib ;;
3023 -L*) echo -libpath:${flag#-L} ;;
3024 *) echo $flag ;;
3025 esac
3026 done
3027 }
3028
3029 msvc_flags(){
3030 msvc_common_flags "$@"
3031 for flag; do
3032 case $flag in
3033 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3034 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3035 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3036 -wd4273 -wd4554 -wd4701 ;;
3037 esac
3038 done
3039 }
3040
3041 icl_flags(){
3042 msvc_common_flags "$@"
3043 for flag; do
3044 case $flag in
3045 # Despite what Intel's documentation says -Wall, which is supported
3046 # on Windows, does enable remarks so disable them here.
3047 -Wall) echo $flag -Qdiag-disable:remark ;;
3048 -std=c99) echo -Qstd=c99 ;;
3049 esac
3050 done
3051 }
3052
3053 pgi_flags(){
3054 for flag; do
3055 case $flag in
3056 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3057 -fomit-frame-pointer) echo -Mnoframe ;;
3058 -g) echo -gopt ;;
3059 *) echo $flag ;;
3060 esac
3061 done
3062 }
3063
3064 suncc_flags(){
3065 for flag; do
3066 case $flag in
3067 -march=*|-mcpu=*)
3068 case "${flag#*=}" in
3069 native) echo -xtarget=native ;;
3070 v9|niagara) echo -xarch=sparc ;;
3071 ultrasparc) echo -xarch=sparcvis ;;
3072 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3073 i586|pentium) echo -xchip=pentium ;;
3074 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3075 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3076 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3077 pentium4*) echo -xtarget=pentium4 ;;
3078 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3079 *-sse3) echo -xarch=sse3 ;;
3080 core2) echo -xarch=ssse3 -xchip=core2 ;;
3081 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3082 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3083 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3084 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3085 k8|opteron|athlon64|athlon-fx)
3086 echo -xarch=sse2a ;;
3087 athlon*) echo -xarch=pentium_proa ;;
3088 esac
3089 ;;
3090 -std=c99) echo -xc99 ;;
3091 -fomit-frame-pointer) echo -xregs=frameptr ;;
3092 -fPIC) echo -KPIC -xcode=pic32 ;;
3093 -W*,*) echo $flag ;;
3094 -f*-*|-W*|-mimpure-text) ;;
3095 -shared) echo -G ;;
3096 *) echo $flag ;;
3097 esac
3098 done
3099 }
3100
3101 tms470_flags(){
3102 for flag; do
3103 case $flag in
3104 -march=*|-mcpu=*)
3105 case "${flag#*=}" in
3106 armv7-a|cortex-a*) echo -mv=7a8 ;;
3107 armv7-r|cortex-r*) echo -mv=7r4 ;;
3108 armv7-m|cortex-m*) echo -mv=7m3 ;;
3109 armv6*|arm11*) echo -mv=6 ;;
3110 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3111 echo -mv=5e ;;
3112 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3113 esac
3114 ;;
3115 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3116 -mfpu=vfp) echo --float_support=vfpv2 ;;
3117 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3118 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3119 -msoft-float) echo --float_support=vfplib ;;
3120 -O[0-3]|-mf=*) echo $flag ;;
3121 -g) echo -g -mn ;;
3122 -pds=*) echo $flag ;;
3123 -D*|-I*) echo $flag ;;
3124 --gcc|--abi=*) echo $flag ;;
3125 -me) echo $flag ;;
3126 esac
3127 done
3128 }
3129
3130 probe_cc(){
3131 pfx=$1
3132 _cc=$2
3133
3134 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3135 unset _ld_o _ldflags _ld_lib _ld_path
3136 unset _depflags _DEPCMD _DEPFLAGS
3137 _flags_filter=echo
3138
3139 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3140 _type=llvm_gcc
3141 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3142 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3143 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3144 _cflags_speed='-O3'
3145 _cflags_size='-Os'
3146 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3147 _type=gcc
3148 gcc_version=$($_cc --version | head -n1)
3149 gcc_basever=$($_cc -dumpversion)
3150 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3151 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3152 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3153 if ! $_cc -dumpversion | grep -q '^2\.'; then
3154 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3155 fi
3156 _cflags_speed='-O3'
3157 _cflags_size='-Os'
3158 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3159 _type=icc
3160 _ident=$($_cc --version | head -n1)
3161 _depflags='-MMD'
3162 _cflags_speed='-O3'
3163 _cflags_size='-Os'
3164 _cflags_noopt='-O1'
3165 elif $_cc -v 2>&1 | grep -q xlc; then
3166 _type=xlc
3167 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3168 _cflags_speed='-O5'
3169 _cflags_size='-O5 -qcompact'
3170 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3171 _type=ccc
3172 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3173 _DEPFLAGS='-M'
3174 _cflags_speed='-fast'
3175 _cflags_size='-O1'
3176 _flags_filter=ccc_flags
3177 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3178 test -d "$sysroot" || die "No valid sysroot specified."
3179 _type=armcc
3180 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3181 armcc_conf="$PWD/armcc.conf"
3182 $_cc --arm_linux_configure \
3183 --arm_linux_config_file="$armcc_conf" \
3184 --configure_sysroot="$sysroot" \
3185 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3186 die "Error creating armcc configuration file."
3187 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3188 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3189 as_default="${cross_prefix}gcc"
3190 _depflags='-MMD'
3191 _cflags_speed='-O3'
3192 _cflags_size='-Os'
3193 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3194 _type=tms470
3195 _ident=$($_cc -version | head -n1 | tr -s ' ')
3196 _flags='--gcc --abi=eabi -me'
3197 _cc_e='-ppl -fe=$@'
3198 _cc_o='-fe=$@'
3199 _depflags='-ppa -ppd=$(@:.o=.d)'
3200 _cflags_speed='-O3 -mf=5'
3201 _cflags_size='-O3 -mf=2'
3202 _flags_filter=tms470_flags
3203 elif $_cc -v 2>&1 | grep -q clang; then
3204 _type=clang
3205 _ident=$($_cc --version 2>/dev/null | head -n1)
3206 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3207 _cflags_speed='-O3'
3208 _cflags_size='-Os'
3209 elif $_cc -V 2>&1 | grep -q Sun; then
3210 _type=suncc
3211 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3212 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3213 _DEPFLAGS='-xM1 -xc99'
3214 _ldflags='-std=c99'
3215 _cflags_speed='-O5'
3216 _cflags_size='-O5 -xspace'
3217 _flags_filter=suncc_flags
3218 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3219 _type=pathscale
3220 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3221 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3222 _cflags_speed='-O2'
3223 _cflags_size='-Os'
3224 _flags_filter='filter_out -Wdisabled-optimization'
3225 elif $_cc -v 2>&1 | grep -q Open64; then
3226 _type=open64
3227 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3228 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3229 _cflags_speed='-O2'
3230 _cflags_size='-Os'
3231 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3232 elif $_cc -V 2>&1 | grep -q Portland; then
3233 _type=pgi
3234 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3235 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3236 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3237 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3238 _cflags_noopt="-O1"
3239 _flags_filter=pgi_flags
3240 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3241 _type=armasm
3242 _ident=$($_cc | head -n1)
3243 # 4509: "This form of conditional instruction is deprecated"
3244 _flags="-nologo -ignore 4509"
3245 _flags_filter=armasm_flags
3246 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3247 _type=msvc
3248 _ident=$($_cc 2>&1 | head -n1)
3249 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3250 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3251 _cflags_speed="-O2"
3252 _cflags_size="-O1"
3253 if $_cc -nologo- 2>&1 | grep -q Linker; then
3254 _ld_o='-out:$@'
3255 else
3256 _ld_o='-Fe$@'
3257 fi
3258 _cc_o='-Fo$@'
3259 _cc_e='-P -Fi$@'
3260 _flags_filter=msvc_flags
3261 _ld_lib='lib%.a'
3262 _ld_path='-libpath:'
3263 _flags='-nologo'
3264 elif $_cc 2>&1 | grep -q Intel; then
3265 _type=icl
3266 _ident=$($_cc 2>&1 | head -n1)
3267 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3268 # Not only is O3 broken on 13.x+ but it is slower on all previous
3269 # versions (tested) as well.
3270 _cflags_speed="-O2"
3271 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3272 if $_cc 2>&1 | grep -q Linker; then
3273 _ld_o='-out:$@'
3274 else
3275 _ld_o='-Fe$@'
3276 fi
3277 _cc_o='-Fo$@'
3278 _cc_e='-P'
3279 _flags_filter=icl_flags
3280 _ld_lib='lib%.a'
3281 _ld_path='-libpath:'
3282 # -Qdiag-error to make icl error when seeing certain unknown arguments
3283 _flags='-nologo -Qdiag-error:4044,10157'
3284 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3285 # with MSVC which enables it by default.
3286 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3287 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3288 # lld can emulate multiple different linkers; in ms link.exe mode,
3289 # the -? parameter gives the help output which contains an identifyable
3290 # string, while it gives an error in other modes.
3291 _type=lld-link
3292 # The link.exe mode doesn't have a switch for getting the version,
3293 # but we can force it back to gnu mode and get the version from there.
3294 _ident=$($_cc -flavor gnu --version)
3295 _ld_o='-out:$@'
3296 _flags_filter=msvc_flags
3297 _ld_lib='lib%.a'
3298 _ld_path='-libpath:'
3299 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3300 _type=cparser
3301 _ident=$($_cc --version | head -n1)
3302 _depflags='-MMD'
3303 _cflags_speed='-O4'
3304 _cflags_size='-O2'
3305 _flags_filter=cparser_flags
3306 fi
3307
3308 eval ${pfx}_type=\$_type
3309 eval ${pfx}_ident=\$_ident
3310 }
3311
3312 set_ccvars(){
3313 eval ${1}_C=\${_cc_c-\${${1}_C}}
3314 eval ${1}_E=\${_cc_e-\${${1}_E}}
3315 eval ${1}_O=\${_cc_o-\${${1}_O}}
3316
3317 if [ -n "$_depflags" ]; then
3318 eval ${1}_DEPFLAGS=\$_depflags
3319 else
3320 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3321 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3322 eval DEP${1}FLAGS=\$_flags
3323 fi
3324 }
3325
3326 probe_cc cc "$cc"
3327 cflags_filter=$_flags_filter
3328 cflags_speed=$_cflags_speed
3329 cflags_size=$_cflags_size
3330 cflags_noopt=$_cflags_noopt
3331 add_cflags $_flags $_cflags
3332 cc_ldflags=$_ldflags
3333 set_ccvars CC
3334
3335 probe_cc hostcc "$host_cc"
3336 host_cflags_filter=$_flags_filter
3337 add_host_cflags $_flags $_cflags
3338 set_ccvars HOSTCC
3339
3340 test -n "$cc_type" && enable $cc_type ||
3341 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3342
3343 : ${as_default:=$cc}
3344 : ${objcc_default:=$cc}
3345 : ${dep_cc_default:=$cc}
3346 : ${ld_default:=$cc}
3347 : ${host_ld_default:=$host_cc}
3348 set_default ar as objcc dep_cc ld host_ld
3349
3350 probe_cc as "$as"
3351 asflags_filter=$_flags_filter
3352 add_asflags $_flags $_cflags
3353 set_ccvars AS
3354
3355 probe_cc objcc "$objcc"
3356 objcflags_filter=$_flags_filter
3357 add_objcflags $_flags $_cflags
3358 set_ccvars OBJC
3359
3360 probe_cc ld "$ld"
3361 ldflags_filter=$_flags_filter
3362 add_ldflags $_flags $_ldflags
3363 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3364 LD_O=${_ld_o-$LD_O}
3365 LD_LIB=${_ld_lib-$LD_LIB}
3366 LD_PATH=${_ld_path-$LD_PATH}
3367
3368 probe_cc hostld "$host_ld"
3369 host_ldflags_filter=$_flags_filter
3370 add_host_ldflags $_flags $_ldflags
3371 HOSTLD_O=${_ld_o-$HOSTLD_O}
3372
3373 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3374 probe_cc depcc "$dep_cc"
3375 CCDEP=${_DEPCMD:-$DEPCMD}
3376 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3377 DEPCCFLAGS=$_flags
3378 fi
3379
3380 if $ar 2>&1 | grep -q Microsoft; then
3381 arflags="-nologo"
3382 ar_o='-out:$@'
3383 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3384 arflags="rq"
3385 ar_o='$@'
3386 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3387 arflags='-Xany -r -c'
3388 ar_o='$@'
3389 else
3390 arflags="rc"
3391 ar_o='$@'
3392 fi
3393
3394 add_cflags $extra_cflags
3395 add_objcflags $extra_objcflags
3396 add_asflags $extra_cflags
3397
3398 if test -n "$sysroot"; then
3399 case "$cc_type" in
3400 gcc|llvm_gcc|clang)
3401 add_cppflags --sysroot="$sysroot"
3402 add_ldflags --sysroot="$sysroot"
3403 ;;
3404 tms470)
3405 add_cppflags -I"$sysinclude"
3406 add_ldflags --sysroot="$sysroot"
3407 ;;
3408 esac
3409 fi
3410
3411 if test "$cpu" = host; then
3412 enabled cross_compile &&
3413 die "--cpu=host makes no sense when cross-compiling."
3414
3415 case "$cc_type" in
3416 gcc|llvm_gcc)
3417 check_native(){
3418 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3419 sed -n "/cc1.*$1=/{
3420 s/.*$1=\\([^ ]*\\).*/\\1/
3421 p
3422 q
3423 }" $TMPE
3424 }
3425 cpu=$(check_native -march || check_native -mcpu)
3426 ;;
3427 esac
3428
3429 test "${cpu:-host}" = host &&
3430 die "--cpu=host not supported with compiler $cc"
3431 fi
3432
3433 # Deal with common $arch aliases
3434 case "$arch" in
3435 aarch64|arm64)
3436 arch="aarch64"
3437 ;;
3438 arm*)
3439 arch="arm"
3440 ;;
3441 mips*|IP*)
3442 case "$arch" in
3443 *el)
3444 add_cppflags -EL
3445 add_ldflags -EL
3446 ;;
3447 *eb)
3448 add_cppflags -EB
3449 add_ldflags -EB
3450 ;;
3451 esac
3452 arch="mips"
3453 ;;
3454 parisc*|hppa*)
3455 arch="parisc"
3456 ;;
3457 "Power Macintosh"|ppc*|powerpc*)
3458 arch="ppc"
3459 ;;
3460 s390|s390x)
3461 arch="s390"
3462 ;;
3463 sh4|sh)
3464 arch="sh4"
3465 ;;
3466 sun4u|sparc*)
3467 arch="sparc"
3468 ;;
3469 tilegx|tile-gx)
3470 arch="tilegx"
3471 ;;
3472 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3473 arch="x86"
3474 ;;
3475 esac
3476
3477 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3478 enable $arch
3479
3480 # Add processor-specific flags
3481 if enabled aarch64; then
3482
3483 case $cpu in
3484 armv*)
3485 cpuflags="-march=$cpu"
3486 ;;
3487 *)
3488 cpuflags="-mcpu=$cpu"
3489 ;;
3490 esac
3491
3492 elif enabled alpha; then
3493
3494 cpuflags="-mcpu=$cpu"
3495
3496 elif enabled arm; then
3497
3498 check_arm_arch() {
3499 check_cpp_condition stddef.h \
3500 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3501 $cpuflags
3502 }
3503
3504 probe_arm_arch() {
3505 if check_arm_arch 4; then echo armv4
3506 elif check_arm_arch 4T; then echo armv4t
3507 elif check_arm_arch 5; then echo armv5
3508 elif check_arm_arch 5E; then echo armv5e
3509 elif check_arm_arch 5T; then echo armv5t
3510 elif check_arm_arch 5TE; then echo armv5te
3511 elif check_arm_arch 5TEJ; then echo armv5te
3512 elif check_arm_arch 6; then echo armv6
3513 elif check_arm_arch 6J; then echo armv6j
3514 elif check_arm_arch 6K; then echo armv6k
3515 elif check_arm_arch 6Z; then echo armv6z
3516 elif check_arm_arch 6ZK; then echo armv6zk
3517 elif check_arm_arch 6T2; then echo armv6t2
3518 elif check_arm_arch 7; then echo armv7
3519 elif check_arm_arch 7A 7_A; then echo armv7-a
3520 elif check_arm_arch 7S; then echo armv7-a
3521 elif check_arm_arch 7R 7_R; then echo armv7-r
3522 elif check_arm_arch 7M 7_M; then echo armv7-m
3523 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3524 elif check_arm_arch 8A 8_A; then echo armv8-a
3525 fi
3526 }
3527
3528 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3529
3530 case $cpu in
3531 armv*)
3532 cpuflags="-march=$cpu"
3533 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3534 ;;
3535 *)
3536 cpuflags="-mcpu=$cpu"
3537 case $cpu in
3538 cortex-a*) subarch=armv7a ;;
3539 cortex-r*) subarch=armv7r ;;
3540 cortex-m*) enable thumb; subarch=armv7m ;;
3541 arm11*) subarch=armv6 ;;
3542 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3543 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3544 *) subarch=$(probe_arm_arch) ;;
3545 esac
3546 ;;
3547 esac
3548
3549 case "$subarch" in
3550 armv5t*) enable fast_clz ;;
3551 armv[6-8]*) enable fast_clz fast_unaligned ;;
3552 esac
3553
3554 elif enabled avr32; then
3555
3556 case $cpu in
3557 ap7[02]0[0-2])
3558 subarch="avr32_ap"
3559 cpuflags="-mpart=$cpu"
3560 ;;
3561 ap)
3562 subarch="avr32_ap"
3563 cpuflags="-march=$cpu"
3564 ;;
3565 uc3[ab]*)
3566 subarch="avr32_uc"
3567 cpuflags="-mcpu=$cpu"
3568 ;;
3569 uc)
3570 subarch="avr32_uc"
3571 cpuflags="-march=$cpu"
3572 ;;
3573 esac
3574
3575 elif enabled bfin; then
3576
3577 cpuflags="-mcpu=$cpu"
3578
3579 elif enabled mips; then
3580
3581 cpuflags="-march=$cpu"
3582
3583 elif enabled ppc; then
3584
3585 disable ldbrx
3586
3587 case $(tolower $cpu) in
3588 601|ppc601|powerpc601)
3589 cpuflags="-mcpu=601"
3590 disable altivec
3591 ;;
3592 603*|ppc603*|powerpc603*)
3593 cpuflags="-mcpu=603"
3594 disable altivec
3595 ;;
3596 604*|ppc604*|powerpc604*)
3597 cpuflags="-mcpu=604"
3598 disable altivec
3599 ;;
3600 g3|75*|ppc75*|powerpc75*)
3601 cpuflags="-mcpu=750"
3602 disable altivec
3603 ;;
3604 g4|745*|ppc745*|powerpc745*)
3605 cpuflags="-mcpu=7450"
3606 disable vsx
3607 ;;
3608 74*|ppc74*|powerpc74*)
3609 cpuflags="-mcpu=7400"
3610 disable vsx
3611 ;;
3612 g5|970|ppc970|powerpc970)
3613 cpuflags="-mcpu=970"
3614 disable vsx
3615 ;;
3616 power[3-6]*)
3617 cpuflags="-mcpu=$cpu"
3618 disable vsx
3619 ;;
3620 power[7-8]*)
3621 cpuflags="-mcpu=$cpu"
3622 enable ldbrx
3623 ;;
3624 cell)
3625 cpuflags="-mcpu=cell"
3626 enable ldbrx
3627 disable vsx
3628 ;;
3629 e500mc)
3630 cpuflags="-mcpu=e500mc"
3631 disable altivec
3632 ;;
3633 e500v2)
3634 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3635 disable altivec
3636 disable dcbzl
3637 ;;
3638 e500)
3639 cpuflags="-mcpu=8540 -mhard-float"
3640 disable altivec
3641 disable dcbzl
3642 ;;
3643 esac
3644
3645 elif enabled sparc; then
3646
3647 case $cpu in
3648 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3649 cpuflags="-mcpu=$cpu"
3650 ;;
3651 ultrasparc*|niagara[234])
3652 cpuflags="-mcpu=$cpu"
3653 ;;
3654 esac
3655
3656 elif enabled x86; then
3657
3658 case $cpu in
3659 i[345]86|pentium)
3660 cpuflags="-march=$cpu"
3661 disable i686
3662 disable mmx
3663 ;;
3664 # targets that do NOT support nopl and conditional mov (cmov)
3665 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3666 cpuflags="-march=$cpu"
3667 disable i686
3668 ;;
3669 # targets that do support nopl and conditional mov (cmov)
3670 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3671 cpuflags="-march=$cpu"
3672 enable i686
3673 enable fast_cmov
3674 ;;
3675 # targets that do support conditional mov but on which it's slow
3676 pentium4|pentium4m|prescott|nocona)
3677 cpuflags="-march=$cpu"
3678 enable i686
3679 disable fast_cmov
3680 ;;
3681 esac
3682
3683 fi
3684
3685 if [ "$cpu" != generic ]; then
3686 add_cflags $cpuflags
3687 add_asflags $cpuflags
3688 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3689 fi
3690
3691 # compiler sanity check
3692 check_exec <<EOF
3693 int main(void){ return 0; }
3694 EOF
3695 if test "$?" != 0; then
3696 echo "$cc is unable to create an executable file."
3697 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3698 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3699 echo "Only do this if you know what cross compiling means."
3700 fi
3701 die "C compiler test failed."
3702 fi
3703
3704 add_cppflags -D_ISOC99_SOURCE
3705
3706 # some compilers silently accept -std=c11, so we also need to check that the
3707 # version macro is defined properly
3708 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3709 add_cflags -std=c11
3710 else
3711 check_cflags -std=c99
3712 fi
3713
3714 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3715 #include <stdlib.h>
3716 EOF
3717 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3718 #include <stdlib.h>
3719 EOF
3720
3721 add_host_cppflags -D_ISOC99_SOURCE
3722 check_host_cflags -std=c99
3723 check_host_cflags -Wall
3724 check_host_cflags -O3
3725
3726 check_64bit(){
3727 arch32=$1
3728 arch64=$2
3729 expr=$3
3730 check_code cc "" "int test[2*($expr) - 1]" &&
3731 subarch=$arch64 || subarch=$arch32
3732 }
3733
3734 case "$arch" in
3735 aarch64|alpha|ia64)
3736 spic=$shared
3737 ;;
3738 mips)
3739 check_64bit mips mips64 '_MIPS_SIM > 1'
3740 spic=$shared
3741 ;;
3742 parisc)
3743 check_64bit parisc parisc64 'sizeof(void *) > 4'
3744 spic=$shared
3745 ;;
3746 ppc)
3747 check_64bit ppc ppc64 'sizeof(void *) > 4'
3748 spic=$shared
3749 ;;
3750 s390)
3751 check_64bit s390 s390x 'sizeof(void *) > 4'
3752 spic=$shared
3753 ;;
3754 sparc)
3755 check_64bit sparc sparc64 'sizeof(void *) > 4'
3756 spic=$shared
3757 ;;
3758 x86)
3759 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3760 if test "$subarch" = "x86_64"; then
3761 spic=$shared
3762 fi
3763 ;;
3764 esac
3765
3766 enable $subarch
3767 enabled spic && enable_weak pic
3768
3769 # OS specific
3770 case $target_os in
3771 aix)
3772 SHFLAGS=-shared
3773 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3774 enabled shared && add_ldflags -Wl,-brtl
3775 ;;
3776 android)
3777 disable symver
3778 enable section_data_rel_ro
3779 SLIB_INSTALL_NAME='$(SLIBNAME)'
3780 SLIB_INSTALL_LINKS=
3781 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3782 ;;
3783 haiku)
3784 prefix_default="/boot/common"
3785 network_extralibs="-lnetwork"
3786 host_libs=
3787 ;;
3788 sunos)
3789 SHFLAGS='-shared -Wl,-h,$$(@F)'
3790 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3791 network_extralibs="-lsocket -lnsl"
3792 # When using suncc to build, the Solaris linker will mark
3793 # an executable with each instruction set encountered by
3794 # the Solaris assembler. As our libraries contain their own
3795 # guards for processor-specific code, instead suppress
3796 # generation of the HWCAPS ELF section on Solaris x86 only.
3797 enabled_all suncc x86 &&
3798 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3799 add_ldflags -Wl,-M,mapfile
3800 nm_default='nm -P -g'
3801 version_script='-M'
3802 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3803 ;;
3804 netbsd)
3805 disable symver
3806 oss_indev_extralibs="-lossaudio"
3807 oss_outdev_extralibs="-lossaudio"
3808 ;;
3809 openbsd|bitrig)
3810 disable symver
3811 SHFLAGS='-shared'
3812 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3813 SLIB_INSTALL_LINKS=
3814 oss_indev_extralibs="-lossaudio"
3815 oss_outdev_extralibs="-lossaudio"
3816 ;;
3817 dragonfly)
3818 disable symver
3819 ;;
3820 freebsd)
3821 ;;
3822 bsd/os)
3823 add_extralibs -lpoll -lgnugetopt
3824 ;;
3825 darwin)
3826 enabled ppc && add_asflags -force_cpusubtype_ALL
3827 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3828 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3829 add_ldflags -Wl,-dynamic,-search_paths_first
3830 SLIBSUF=".dylib"
3831 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3832 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3833 objformat="macho"
3834 enabled x86_64 && objformat="macho64"
3835 enabled_any pic shared ||
3836 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3837 check_header dispatch/dispatch.h &&
3838 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3839 ;;
3840 msys*)
3841 die "Native MSYS builds are discouraged, please use the MINGW environment."
3842 ;;
3843 mingw32*|mingw64*)
3844 if test $target_os = "mingw32ce"; then
3845 disable network
3846 else
3847 target_os=mingw32
3848 fi
3849 LIBTARGET=i386
3850 if enabled x86_64; then
3851 LIBTARGET="i386:x86-64"
3852 elif enabled arm; then
3853 LIBTARGET=arm-wince
3854 fi
3855 check_ldflags -Wl,--nxcompat
3856 check_ldflags -Wl,--dynamicbase
3857 shlibdir_default="$bindir_default"
3858 SLIBPREF=""
3859 SLIBSUF=".dll"
3860 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3861 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3862 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3863 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3864 SLIB_INSTALL_LINKS=
3865 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3866 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3867 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3868 objformat="win32"
3869 dlltool="${cross_prefix}dlltool"
3870 ranlib=:
3871 enable dos_paths
3872 ;;
3873 win32|win64)
3874 disable symver
3875 if enabled shared; then
3876 # Link to the import library instead of the normal static library
3877 # for shared libs.
3878 LD_LIB='%.lib'
3879 # Cannot build both shared and static libs with MSVC or icl.
3880 disable static
3881 fi
3882 shlibdir_default="$bindir_default"
3883 SLIBPREF=""
3884 SLIBSUF=".dll"
3885 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3886 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3887 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3888 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3889 SLIB_INSTALL_LINKS=
3890 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3891 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3892 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3893 objformat="win32"
3894 ranlib=:
3895 enable dos_paths
3896 ;;
3897 cygwin*)
3898 target_os=cygwin
3899 shlibdir_default="$bindir_default"
3900 SLIBPREF="cyg"
3901 SLIBSUF=".dll"
3902 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3903 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3904 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3905 SLIB_INSTALL_LINKS=
3906 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3907 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3908 objformat="win32"
3909 enable dos_paths
3910 ;;
3911 *-dos|freedos|opendos)
3912 network_extralibs="-lsocket"
3913 objformat="coff"
3914 enable dos_paths
3915 add_cppflags -U__STRICT_ANSI__
3916 ;;
3917 linux)
3918 enable dv1394
3919 enable section_data_rel_ro
3920 ;;
3921 irix*)
3922 target_os=irix
3923 ranlib="echo ignoring ranlib"
3924 ;;
3925 os/2*)
3926 ln_s="cp -f"
3927 objformat="aout"
3928 add_cppflags -D_GNU_SOURCE
3929 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3930 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3931 LIBSUF="_s.a"
3932 SLIBPREF=""
3933 SLIBSUF=".dll"
3934 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3935 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3936 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3937 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3938 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3939 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3940 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3941 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3942 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3943 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3944 enable dos_paths
3945 ;;
3946 gnu/kfreebsd)
3947 add_cppflags -D_BSD_SOURCE
3948 ;;
3949 gnu)
3950 ;;
3951 qnx)
3952 add_cppflags -D_QNX_SOURCE
3953 network_extralibs="-lsocket"
3954 ;;
3955 symbian)
3956 SLIBSUF=".dll"
3957 enable dos_paths
3958 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3959 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3960 add_ldflags -Wl,--target1-abs,--no-undefined \
3961 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3962 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3963 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3964 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3965 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3966 ;;
3967 osf1)
3968 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3969 ;;
3970 minix)
3971 ;;
3972 plan9)
3973 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3974 -D_REENTRANT_SOURCE \
3975 -D_RESEARCH_SOURCE \
3976 -DFD_SETSIZE=96 \
3977 -DHAVE_SOCK_OPTS
3978 add_compat strtod.o strtod=avpriv_strtod
3979 network_extralibs='-lbsd'
3980 exeobjs=compat/plan9/main.o
3981 cp_f='cp'
3982 ;;
3983 none)
3984 ;;
3985 *)
3986 die "Unknown OS '$target_os'."
3987 ;;
3988 esac
3989
3990 # determine libc flavour
3991
3992 probe_libc(){
3993 pfx=$1
3994 pfx_no_=${pfx%_}
3995 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3996 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3997 eval ${pfx}libc_type=uclibc
3998 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3999 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4000 eval ${pfx}libc_type=glibc
4001 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4002 # MinGW headers can be installed on Cygwin, so check for newlib first.
4003 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4004 eval ${pfx}libc_type=newlib
4005 add_${pfx}cppflags -U__STRICT_ANSI__
4006 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4007 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4008 eval ${pfx}libc_type=mingw64
4009 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4010 eval test \$${pfx_no_}cc_type = "gcc" &&
4011 add_${pfx}cppflags -D__printf__=__gnu_printf__
4012 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4013 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4014 eval ${pfx}libc_type=mingw32
4015 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4016 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4017 die "ERROR: MinGW32 runtime version must be >= 3.15."
4018 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4019 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4020 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4021 eval test \$${pfx_no_}cc_type = "gcc" &&
4022 add_${pfx}cppflags -D__printf__=__gnu_printf__
4023 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4024 eval ${pfx}libc_type=msvcrt
4025 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4026 if [ "$pfx" = host_ ]; then
4027 add_host_cppflags -Dsnprintf=_snprintf
4028 else
4029 add_compat strtod.o strtod=avpriv_strtod
4030 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4031 _snprintf=avpriv_snprintf \
4032 vsnprintf=avpriv_vsnprintf
4033 fi
4034 fi
4035 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4036 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4037 # 0x601 by default unless something else is set by the user.
4038 # This can easily lead to us detecting functions only present
4039 # in such new versions and producing binaries requiring windows 7.0.
4040 # Therefore explicitly set the default to XP unless the user has
4041 # set something else on the command line.
4042 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4043 # family. For these cases, configure is free to use any functions
4044 # found in the SDK headers by default. (Alternatively, we could force
4045 # _WIN32_WINNT to 0x0602 in that case.)
4046 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4047 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4048 #ifdef WINAPI_FAMILY
4049 #include <winapifamily.h>
4050 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4051 #error not desktop
4052 #endif
4053 #endif
4054 EOF
4055 if [ "$pfx" = "" ]; then
4056 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4057 fi
4058 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4059 eval ${pfx}libc_type=klibc
4060 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4061 eval ${pfx}libc_type=bionic
4062 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4063 eval ${pfx}libc_type=solaris
4064 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4065 else
4066 eval ${pfx}libc_type=default
4067 add_${pfx}cppflags -D_DEFAULT_SOURCE
4068 fi
4069 }
4070
4071 probe_libc
4072 test -n "$libc_type" && enable libc_$libc_type
4073 probe_libc host_
4074 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4075
4076 case $libc_type in
4077 bionic)
4078 add_compat strtod.o strtod=avpriv_strtod
4079 ;;
4080 esac
4081
4082 # hacks for compiler/libc/os combinations
4083
4084 if enabled_all tms470 libc_glibc; then
4085 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4086 add_cppflags -D__USER_LABEL_PREFIX__=
4087 add_cppflags -D__builtin_memset=memset
4088 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4089 add_cflags -pds=48 # incompatible redefinition of macro
4090 fi
4091
4092 if enabled_all ccc libc_glibc; then
4093 add_ldflags -Wl,-z,now # calls to libots crash without this
4094 fi
4095
4096 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4097 add_cppflags '-I\$(SRC_PATH)/compat/float'
4098
4099 esc(){
4100 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4101 }
4102
4103 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4104
4105 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4106
4107 set_default $PATHS_LIST
4108 set_default nm
4109
4110 # we need to build at least one lib type
4111 if ! enabled_any static shared; then
4112 cat <<EOF
4113 At least one library type must be built.
4114 Specify --enable-static to build the static libraries or --enable-shared to
4115 build the shared libraries as well. To only build the shared libraries specify
4116 --disable-static in addition to --enable-shared.
4117 EOF
4118 exit 1
4119 fi
4120
4121 die_license_disabled() {
4122 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4123 }
4124
4125 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4126 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4127 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4128
4129 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4130
4131 disabled optimizations || check_cflags -fomit-frame-pointer
4132
4133 enable_weak_pic() {
4134 disabled pic && return
4135 enable pic
4136 add_cppflags -DPIC
4137 case "$target_os" in
4138 mingw*|cygwin*)
4139 ;;
4140 *)
4141 add_cflags -fPIC
4142 ;;
4143 esac
4144 add_asflags -fPIC
4145 }
4146
4147 enabled pic && enable_weak_pic
4148
4149 check_cc <<EOF || die "Symbol mangling check failed."
4150 int ff_extern;
4151 EOF
4152 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4153 extern_prefix=${sym%%ff_extern*}
4154
4155 check_cc <<EOF && enable_weak inline_asm
4156 void foo(void) { __asm__ volatile ("" ::); }
4157 EOF
4158
4159 _restrict=
4160 for restrict_keyword in restrict __restrict__ __restrict; do
4161 check_cc <<EOF && _restrict=$restrict_keyword && break
4162 void foo(char * $restrict_keyword p);
4163 EOF
4164 done
4165
4166 check_cc <<EOF && enable pragma_deprecated
4167 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4168 EOF
4169
4170 check_cc <<EOF && enable attribute_packed
4171 struct { int x; } __attribute__((packed)) x;
4172 EOF
4173
4174 check_cc <<EOF && enable attribute_may_alias
4175 union { int x; } __attribute__((may_alias)) x;
4176 EOF
4177
4178 check_cc <<EOF || die "endian test failed"
4179 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4180 EOF
4181 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4182
4183 check_gas() {
4184 log "check_gas using '$as' as AS"
4185 # :vararg is used on aarch64, arm and ppc altivec
4186 check_as <<EOF || return 1
4187 .macro m n, y:vararg=0
4188 \n: .int \y
4189 .endm
4190 m x
4191 EOF
4192 # .altmacro is only used in arm asm
4193 ! enabled arm || check_as <<EOF || return 1
4194 .altmacro
4195 EOF
4196 enable gnu_as
4197 return 0
4198 }
4199
4200 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4201 nogas=:
4202 enabled_any arm aarch64 && nogas=die
4203 enabled_all ppc altivec && nogas=warn
4204 as_noop=-v
4205
4206 case $as_type in
4207 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4208 gcc) gaspp_as_type=gas ;;
4209 *) gaspp_as_type=$as_type ;;
4210 esac
4211
4212 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4213
4214 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4215 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4216
4217 if ! check_gas ; then
4218 as=${gas:=$as}
4219 check_gas || \
4220 $nogas "GNU assembler not found, install/update gas-preprocessor"
4221 fi
4222
4223 check_as <<EOF && enable as_func
4224 .func test
4225 .endfunc
4226 EOF
4227 fi
4228
4229 check_inline_asm inline_asm_labels '"1:\n"'
4230
4231 if enabled aarch64; then
4232 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4233 # internal assembler in clang 3.3 does not support this instruction
4234 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4235 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4236
4237 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4238
4239 elif enabled alpha; then
4240
4241 check_cflags -mieee
4242
4243 elif enabled arm; then
4244
4245 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4246 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4247 enabled thumb && check_cflags -mthumb || check_cflags -marm
4248
4249 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4250 enable vfp_args
4251 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4252 enable vfp_args
4253 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4254 case "${cross_prefix:-$cc}" in
4255 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4256 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4257 __asm__ (".eabi_attribute 28, 1");
4258 int main(void) { return 0; }
4259 EOF
4260 esac
4261 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4262 fi
4263
4264 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4265 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4266 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4267 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4268 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4269 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4270
4271 [ $target_os = linux ] || [ $target_os = android ] ||
4272 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4273 $ARCH_EXT_LIST_ARM
4274
4275 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4276
4277 check_as <<EOF && enable as_dn_directive
4278 ra .dn d0.i16
4279 .unreq ra
4280 EOF
4281 check_as <<EOF && enable as_fpu_directive
4282 .fpu neon
4283 EOF
4284
4285 # llvm's integrated assembler supports .object_arch from llvm 3.5
4286 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4287 .object_arch armv4
4288 EOF
4289
4290 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4291
4292 elif enabled mips; then
4293
4294 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4295
4296 # make sure that only an instruction set is enabled
4297 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4298
4299 if enabled mips64; then
4300 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4301 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4302 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4303 else
4304 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4305 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4306 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4307 fi
4308
4309 elif enabled parisc; then
4310
4311 if enabled gcc; then
4312 case $($cc -dumpversion) in
4313 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4314 esac
4315 fi
4316
4317 elif enabled ppc; then
4318
4319 enable local_aligned_8 local_aligned_16 local_aligned_32
4320
4321 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4322 check_inline_asm ibm_asm '"add 0, 0, 0"'
4323 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4324 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4325
4326 # AltiVec flags: The FSF version of GCC differs from the Apple version
4327 if enabled altivec; then
4328 check_cflags -maltivec -mabi=altivec &&
4329 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4330 check_cflags -faltivec
4331
4332 # check if our compiler supports Motorola AltiVec C API
4333 check_cc <<EOF || disable altivec
4334 $inc_altivec_h
4335 int main(void) {
4336 vector signed int v1 = (vector signed int) { 0 };
4337 vector signed int v2 = (vector signed int) { 1 };
4338 v1 = vec_add(v1, v2);
4339 return 0;
4340 }
4341 EOF
4342
4343 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4344 fi
4345
4346 if enabled vsx; then
4347 check_cflags -mvsx &&
4348 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4349 fi
4350
4351 if enabled power8; then
4352 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4353 fi
4354
4355 elif enabled x86; then
4356
4357 check_builtin rdtsc intrin.h "__rdtsc()"
4358 check_builtin mm_empty mmintrin.h "_mm_empty()"
4359
4360 enable local_aligned_8 local_aligned_16 local_aligned_32
4361
4362 # check whether EBP is available on x86
4363 # As 'i' is stored on the stack, this program will crash
4364 # if the base pointer is used to access it because the
4365 # base pointer is cleared in the inline assembly code.
4366 check_exec_crash <<EOF && enable ebp_available
4367 volatile int i=0;
4368 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4369 return i;
4370 EOF
4371
4372 # check whether EBX is available on x86
4373 check_inline_asm ebx_available '""::"b"(0)' &&
4374 check_inline_asm ebx_available '"":::"%ebx"'
4375
4376 # check whether xmm clobbers are supported
4377 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4378
4379 # check whether binutils is new enough to compile SSSE3/MMXEXT
4380 enabled ssse3 && check_inline_asm ssse3_inline