configure: Add misssing qpeldsp dependency to mss2 decoder
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-bzlib bzip2 compression [autodetect]
192 --enable-frei0r video filtering plugins
193 --enable-gnutls crypto
194 --enable-libbs2b Bauer stereophonic-to-binaural DSP
195 --enable-libcdio audio CD input
196 --enable-libdc1394 IEEE 1394/Firewire camera input
197 --enable-libdcadec DCA audio decoding
198 --enable-libfaac AAC audio encoding
199 --enable-libfdk-aac AAC audio encoding/decoding
200 --enable-libfontconfig font configuration and management
201 --enable-libfreetype font rendering
202 --enable-libgsm GSM audio encoding/decoding
203 --enable-libhdcd HDCD decoding filter
204 --enable-libilbc ILBC audio encoding/decoding
205 --enable-libkvazaar HEVC video encoding
206 --enable-libmp3lame MP3 audio encoding
207 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
208 --enable-libopencore-amrwb AMR-WB audio decoding
209 --enable-libopencv computer vision
210 --enable-libopenh264 H.264 video encoding/decoding
211 --enable-libopenjpeg JPEG 2000 image encoding/decoding
212 --enable-libopus Opus audio encoding/decoding
213 --enable-libpulse Pulseaudio sound server
214 --enable-librtmp RTMP streaming
215 --enable-libschroedinger Dirac video encoding/decoding
216 --enable-libsnappy snappy compression
217 --enable-libspeex Speex audio encoding/decoding
218 --enable-libtheora Theora video encoding/decoding
219 --enable-libtwolame MP2 audio encoding
220 --enable-libvo-aacenc AAC audio encoding
221 --enable-libvo-amrwbenc AMR-WB audio encoding
222 --enable-libvorbis Vorbis audio encoding/decoding
223 --enable-libvpx VP* video encoding/decoding
224 --enable-libwavpack Wavpack audio encoding/decoding
225 --enable-libwebp WebP image encoding/decoding
226 --enable-libx264 H.264 video encoding
227 --enable-libx265 HEVC video encoding
228 --enable-libxavs Chinese AVS video encoding
229 --enable-libxcb X window system protocol communication
230 --enable-libxcb-shm X11 shm communication [auto]
231 --enable-libxcb-xfixes X11 mouse rendering [auto]
232 --enable-libxvid MPEG-4 ASP video encoding
233 --enable-openssl crypto
234 --enable-zlib compression [autodetect]
235
236 The following libraries provide various hardware acceleration features:
237 --enable-cuda Nvidia CUDA (dynamically linked)
238 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
239 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
240 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
241 --enable-libnpp Nvidia CUDA processing
242 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
243 --enable-nvenc Nvidia video encoding
244 --enable-omx OpenMAX IL
245 --enable-omx-rpi OpenMAX IL for Raspberry Pi
246 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
247 --enable-vda Apple Video Decode Acceleration [auto]
248 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
249
250 Toolchain options:
251 --arch=ARCH select architecture [$arch]
252 --cpu=CPU select the minimum required CPU (affects
253 instruction selection, may crash on older CPUs)
254 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
255 --enable-cross-compile assume a cross-compiler is used
256 --sysroot=PATH root of cross-build tree
257 --sysinclude=PATH location of cross-build system headers
258 --target-os=OS compiler targets OS [$target_os]
259 --target-exec=CMD command to run executables on target
260 --target-path=DIR path to view of build directory on target
261 --target-samples=DIR path to samples directory on target
262 --toolchain=NAME set tool defaults according to NAME
263 --nm=NM use nm tool
264 --ar=AR use archive tool AR [$ar_default]
265 --as=AS use assembler AS [$as_default]
266 --cc=CC use C compiler CC [$cc_default]
267 --objcc=OCC use ObjC compiler OCC [$cc_default]
268 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
269 --ld=LD use linker LD
270 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
271 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
272 --host-cc=HOSTCC use host C compiler HOSTCC
273 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
274 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
275 --host-ld=HOSTLD use host linker HOSTLD
276 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
277 --host-libs=HLIBS use libs HLIBS when linking for host
278 --host-os=OS compiler host OS [$target_os]
279 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
280 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
281 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
282 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --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) printf '%s ' $v ;; esac"
432 done
433 }
434
435 filter_out(){
436 pat=$1
437 shift
438 for v; do
439 eval "case $v in $pat) ;; *) printf '%s ' $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_cpp "$@" <<EOF && append CPPFLAGS "$@"
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 "$@"
883 }
884
885 test_objcflags(){
886 log test_objcflags "$@"
887 set -- $($objcflags_filter "$@")
888 check_objcc "$@" <<EOF
889 int x;
890 EOF
891 }
892
893 check_objcflags(){
894 log check_objcflags "$@"
895 test_objcflags "$@" && 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 >> $logfile 2>&1; }
1026 }
1027
1028 check_exec_crash(){
1029 log check_exec_crash "$@"
1030 code=$(cat)
1031
1032 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1033 # are safe but may not be available everywhere. Thus we use
1034 # raise(SIGTERM) instead. The check is run in a subshell so we
1035 # can redirect the "Terminated" message from the shell. SIGBUS
1036 # is not defined by standard C so it is used conditionally.
1037
1038 (check_exec "$@") >> $logfile 2>&1 <<EOF
1039 #include <signal.h>
1040 static void sighandler(int sig){
1041 raise(SIGTERM);
1042 }
1043 int foo(void){
1044 $code
1045 }
1046 int (*func_ptr)(void) = foo;
1047 int main(void){
1048 signal(SIGILL, sighandler);
1049 signal(SIGFPE, sighandler);
1050 signal(SIGSEGV, sighandler);
1051 #ifdef SIGBUS
1052 signal(SIGBUS, sighandler);
1053 #endif
1054 return func_ptr();
1055 }
1056 EOF
1057 }
1058
1059 check_type(){
1060 log check_type "$@"
1061 headers=$1
1062 type=$2
1063 shift 2
1064 disable_safe "$type"
1065 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1066 }
1067
1068 check_struct(){
1069 log check_struct "$@"
1070 headers=$1
1071 struct=$2
1072 member=$3
1073 shift 3
1074 disable_safe "${struct}_${member}"
1075 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1076 enable_safe "${struct}_${member}"
1077 }
1078
1079 check_builtin(){
1080 log check_builtin "$@"
1081 name=$1
1082 headers=$2
1083 builtin=$3
1084 shift 3
1085 disable "$name"
1086 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1087 }
1088
1089 check_compile_assert(){
1090 log check_compile_assert "$@"
1091 name=$1
1092 headers=$2
1093 condition=$3
1094 shift 3
1095 disable "$name"
1096 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1097 }
1098
1099 require(){
1100 log require "$@"
1101 name="$1"
1102 headers="$2"
1103 func="$3"
1104 shift 3
1105 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1106 }
1107
1108 require_pkg_config(){
1109 log require_pkg_config "$@"
1110 pkg="$1"
1111 check_pkg_config "$@" || die "ERROR: $pkg not found"
1112 add_cflags $(get_safe "${pkg}_cflags")
1113 add_extralibs $(get_safe "${pkg}_libs")
1114 }
1115
1116 hostcc_e(){
1117 eval printf '%s\\n' $HOSTCC_E
1118 }
1119
1120 hostcc_o(){
1121 eval printf '%s\\n' $HOSTCC_O
1122 }
1123
1124 check_host_cc(){
1125 log check_host_cc "$@"
1126 cat > $TMPC
1127 log_file $TMPC
1128 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1129 }
1130
1131 check_host_cpp(){
1132 log check_host_cpp "$@"
1133 cat > $TMPC
1134 log_file $TMPC
1135 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1136 }
1137
1138 check_host_cppflags(){
1139 log check_host_cppflags "$@"
1140 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1141 int x;
1142 EOF
1143 }
1144
1145 check_host_cflags(){
1146 log check_host_cflags "$@"
1147 set -- $($host_cflags_filter "$@")
1148 check_host_cc "$@" <<EOF && append host_cflags "$@"
1149 int x;
1150 EOF
1151 }
1152
1153 check_host_cpp_condition(){
1154 log check_host_cpp_condition "$@"
1155 header=$1
1156 condition=$2
1157 shift 2
1158 check_host_cpp "$@" <<EOF
1159 #include <$header>
1160 #if !($condition)
1161 #error "unsatisfied condition: $condition"
1162 #endif
1163 EOF
1164 }
1165
1166 apply(){
1167 file=$1
1168 shift
1169 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1170 }
1171
1172 cp_if_changed(){
1173 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1174 mkdir -p "$(dirname $2)"
1175 cp -f "$1" "$2"
1176 }
1177
1178 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1179 # system-dependent things.
1180
1181 AVCODEC_COMPONENTS="
1182 bsfs
1183 decoders
1184 encoders
1185 hwaccels
1186 parsers
1187 "
1188
1189 AVDEVICE_COMPONENTS="
1190 indevs
1191 outdevs
1192 "
1193 AVFILTER_COMPONENTS="
1194 filters
1195 "
1196 AVFORMAT_COMPONENTS="
1197 demuxers
1198 muxers
1199 protocols
1200 "
1201
1202 AVRESAMPLE_COMPONENTS=""
1203 AVUTIL_COMPONENTS=""
1204
1205 COMPONENT_LIST="
1206 $AVCODEC_COMPONENTS
1207 $AVDEVICE_COMPONENTS
1208 $AVFILTER_COMPONENTS
1209 $AVFORMAT_COMPONENTS
1210 $AVRESAMPLE_COMPONENTS
1211 $AVUTIL_COMPONENTS
1212 "
1213
1214 EXAMPLE_LIST="
1215 decode_audio_example
1216 decode_video_example
1217 encode_audio_example
1218 encode_video_example
1219 filter_audio_example
1220 metadata_example
1221 output_example
1222 qsvdec_example
1223 transcode_aac_example
1224 "
1225
1226 HWACCEL_LIBRARY_NONFREE_LIST="
1227 cuda
1228 libnpp
1229 "
1230 HWACCEL_LIBRARY_LIST="
1231 $HWACCEL_LIBRARY_NONFREE_LIST
1232 d3d11va
1233 dxva2
1234 libmfx
1235 mmal
1236 nvenc
1237 omx
1238 vaapi
1239 vda
1240 vdpau
1241 "
1242
1243 EXTERNAL_LIBRARY_GPL_LIST="
1244 libcdio
1245 libx264
1246 libx265
1247 libxavs
1248 libxvid
1249 "
1250
1251 EXTERNAL_LIBRARY_NONFREE_LIST="
1252 libfaac
1253 libfdk_aac
1254 openssl
1255 "
1256
1257 EXTERNAL_LIBRARY_VERSION3_LIST="
1258 libopencore_amrnb
1259 libopencore_amrwb
1260 libvo_aacenc
1261 libvo_amrwbenc
1262 "
1263
1264 EXTERNAL_LIBRARY_LIST="
1265 $EXTERNAL_LIBRARY_GPL_LIST
1266 $EXTERNAL_LIBRARY_NONFREE_LIST
1267 $EXTERNAL_LIBRARY_VERSION3_LIST
1268 avisynth
1269 bzlib
1270 frei0r
1271 gnutls
1272 libbs2b
1273 libdc1394
1274 libdcadec
1275 libfontconfig
1276 libfreetype
1277 libgsm
1278 libhdcd
1279 libilbc
1280 libkvazaar
1281 libmp3lame
1282 libopencv
1283 libopenh264
1284 libopenjpeg
1285 libopus
1286 libpulse
1287 librtmp
1288 libschroedinger
1289 libsnappy
1290 libspeex
1291 libtheora
1292 libtwolame
1293 libvorbis
1294 libvpx
1295 libwavpack
1296 libwebp
1297 libxcb
1298 libxcb_shm
1299 libxcb_xfixes
1300 zlib
1301 "
1302
1303 FEATURE_LIST="
1304 gray
1305 hardcoded_tables
1306 omx_rpi
1307 runtime_cpudetect
1308 safe_bitstream_reader
1309 shared
1310 small
1311 sram
1312 static
1313 swscale_alpha
1314 "
1315
1316 LIBRARY_LIST="
1317 avcodec
1318 avdevice
1319 avfilter
1320 avformat
1321 avresample
1322 avutil
1323 swscale
1324 "
1325
1326 LICENSE_LIST="
1327 gpl
1328 nonfree
1329 version3
1330 "
1331
1332 PROGRAM_LIST="
1333 avconv
1334 avplay
1335 avprobe
1336 "
1337
1338 SUBSYSTEM_LIST="
1339 dct
1340 doc
1341 error_resilience
1342 faan
1343 fft
1344 lsp
1345 lzo
1346 mdct
1347 network
1348 rdft
1349 "
1350
1351 CONFIG_LIST="
1352 $COMPONENT_LIST
1353 $EXAMPLE_LIST
1354 $EXTERNAL_LIBRARY_LIST
1355 $HWACCEL_LIBRARY_LIST
1356 $FEATURE_LIST
1357 $LICENSE_LIST
1358 $LIBRARY_LIST
1359 $PROGRAM_LIST
1360 $SUBSYSTEM_LIST
1361 neon_clobber_test
1362 pic
1363 pod2man
1364 texi2html
1365 thumb
1366 valgrind_backtrace
1367 xmm_clobber_test
1368 "
1369
1370 THREADS_LIST="
1371 pthreads
1372 w32threads
1373 "
1374
1375 ATOMICS_LIST="
1376 atomics_gcc
1377 atomics_suncc
1378 atomics_win32
1379 "
1380
1381 ARCH_LIST="
1382 aarch64
1383 alpha
1384 arm
1385 avr32
1386 avr32_ap
1387 avr32_uc
1388 bfin
1389 ia64
1390 m68k
1391 mips
1392 mips64
1393 parisc
1394 ppc
1395 ppc64
1396 s390
1397 sh4
1398 sparc
1399 sparc64
1400 tilegx
1401 tilepro
1402 tomi
1403 x86
1404 x86_32
1405 x86_64
1406 "
1407
1408 ARCH_EXT_LIST_ARM="
1409 armv5te
1410 armv6
1411 armv6t2
1412 armv8
1413 neon
1414 vfp
1415 vfpv3
1416 "
1417
1418 ARCH_EXT_LIST_X86_SIMD="
1419 amd3dnow
1420 amd3dnowext
1421 avx
1422 avx2
1423 fma3
1424 fma4
1425 mmx
1426 mmxext
1427 sse
1428 sse2
1429 sse3
1430 sse4
1431 sse42
1432 ssse3
1433 xop
1434 "
1435
1436 ARCH_EXT_LIST_PPC="
1437 altivec
1438 dcbzl
1439 ldbrx
1440 power8
1441 ppc4xx
1442 vsx
1443 "
1444
1445 ARCH_EXT_LIST_X86="
1446 $ARCH_EXT_LIST_X86_SIMD
1447 cpunop
1448 i686
1449 "
1450
1451 ARCH_EXT_LIST_MIPS="
1452 loongson
1453 mips32r1
1454 mips64r1
1455 mips32r2
1456 mips64r2
1457 mips32r6
1458 mips64r6
1459 "
1460
1461 ARCH_EXT_LIST="
1462 $ARCH_EXT_LIST_ARM
1463 $ARCH_EXT_LIST_MIPS
1464 $ARCH_EXT_LIST_PPC
1465 $ARCH_EXT_LIST_X86
1466 vis
1467 "
1468
1469 ARCH_FEATURES="
1470 aligned_stack
1471 fast_64bit
1472 fast_clz
1473 fast_cmov
1474 local_aligned_8
1475 local_aligned_16
1476 local_aligned_32
1477 simd_align_16
1478 simd_align_32
1479 "
1480
1481 BUILTIN_LIST="
1482 atomic_cas_ptr
1483 machine_rw_barrier
1484 MemoryBarrier
1485 mm_empty
1486 rdtsc
1487 sem_timedwait
1488 sync_val_compare_and_swap
1489 "
1490 HAVE_LIST_CMDLINE="
1491 inline_asm
1492 symver
1493 yasm
1494 "
1495
1496 HAVE_LIST_PUB="
1497 bigendian
1498 fast_unaligned
1499 "
1500
1501 HEADERS_LIST="
1502 AVFoundation_AVFoundation_h
1503 alsa_asoundlib_h
1504 altivec_h
1505 arpa_inet_h
1506 cdio_paranoia_h
1507 cdio_paranoia_paranoia_h
1508 dispatch_dispatch_h
1509 dev_bktr_ioctl_bt848_h
1510 dev_bktr_ioctl_meteor_h
1511 dev_ic_bt8xx_h
1512 dev_video_bktr_ioctl_bt848_h
1513 dev_video_meteor_ioctl_meteor_h
1514 direct_h
1515 dlfcn_h
1516 d3d11_h
1517 dxva_h
1518 gsm_h
1519 io_h
1520 mach_mach_time_h
1521 machine_ioctl_bt848_h
1522 machine_ioctl_meteor_h
1523 malloc_h
1524 poll_h
1525 sndio_h
1526 soundcard_h
1527 stdatomic_h
1528 sys_mman_h
1529 sys_param_h
1530 sys_resource_h
1531 sys_select_h
1532 sys_soundcard_h
1533 sys_time_h
1534 sys_un_h
1535 sys_videoio_h
1536 unistd_h
1537 valgrind_valgrind_h
1538 windows_h
1539 winsock2_h
1540 "
1541
1542 INTRINSICS_LIST="
1543 intrinsics_neon
1544 "
1545
1546 MATH_FUNCS="
1547 atanf
1548 atan2f
1549 cbrtf
1550 cosf
1551 exp2
1552 exp2f
1553 expf
1554 isinf
1555 isnan
1556 ldexpf
1557 llrint
1558 llrintf
1559 log2
1560 log2f
1561 log10f
1562 lrint
1563 lrintf
1564 powf
1565 rint
1566 round
1567 roundf
1568 sinf
1569 trunc
1570 truncf
1571 "
1572
1573 SYSTEM_FUNCS="
1574 aligned_malloc
1575 clock_gettime
1576 closesocket
1577 CommandLineToArgvW
1578 CoTaskMemFree
1579 CryptGenRandom
1580 dlopen
1581 fcntl
1582 flt_lim
1583 fork
1584 getaddrinfo
1585 gethrtime
1586 getopt
1587 GetProcessAffinityMask
1588 GetProcessMemoryInfo
1589 GetProcessTimes
1590 getrusage
1591 GetSystemTimeAsFileTime
1592 gettimeofday
1593 gmtime_r
1594 inet_aton
1595 isatty
1596 jack_port_get_latency_range
1597 LoadLibrary
1598 localtime_r
1599 mach_absolute_time
1600 MapViewOfFile
1601 memalign
1602 mkstemp
1603 mmap
1604 mprotect
1605 nanosleep
1606 posix_memalign
1607 sched_getaffinity
1608 SetConsoleTextAttribute
1609 setmode
1610 setrlimit
1611 Sleep
1612 strerror_r
1613 sysconf
1614 sysctl
1615 usleep
1616 VirtualAlloc
1617 "
1618
1619 TOOLCHAIN_FEATURES="
1620 as_dn_directive
1621 as_fpu_directive
1622 as_func
1623 as_object_arch
1624 asm_mod_q
1625 attribute_may_alias
1626 attribute_packed
1627 ebp_available
1628 ebx_available
1629 gnu_as
1630 ibm_asm
1631 inline_asm_labels
1632 pragma_deprecated
1633 symver_asm_label
1634 symver_gnu_asm
1635 vfp_args
1636 xform_asm
1637 xmm_clobbers
1638 "
1639
1640 TYPES_LIST="
1641 CONDITION_VARIABLE_Ptr
1642 socklen_t
1643 struct_addrinfo
1644 struct_group_source_req
1645 struct_ip_mreq_source
1646 struct_ipv6_mreq
1647 struct_pollfd
1648 struct_rusage_ru_maxrss
1649 struct_sockaddr_in6
1650 struct_sockaddr_sa_len
1651 struct_sockaddr_storage
1652 struct_v4l2_frmivalenum_discrete
1653 "
1654
1655 HAVE_LIST="
1656 $ARCH_EXT_LIST
1657 $(add_suffix _external $ARCH_EXT_LIST)
1658 $(add_suffix _inline $ARCH_EXT_LIST)
1659 $ARCH_FEATURES
1660 $BUILTIN_LIST
1661 $HAVE_LIST_CMDLINE
1662 $HAVE_LIST_PUB
1663 $HEADERS_LIST
1664 $INTRINSICS_LIST
1665 $MATH_FUNCS
1666 $SYSTEM_FUNCS
1667 $THREADS_LIST
1668 $TOOLCHAIN_FEATURES
1669 $TYPES_LIST
1670 dos_paths
1671 dxva2_lib
1672 libc_msvcrt
1673 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1674 sdl
1675 section_data_rel_ro
1676 threads
1677 vaapi_drm
1678 vaapi_x11
1679 vdpau_x11
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 gmp
1700 golomb
1701 gplv3
1702 h263dsp
1703 h264chroma
1704 h264dsp
1705 h264parse
1706 h264pred
1707 h264qpel
1708 hpeldsp
1709 huffman
1710 huffyuvdsp
1711 huffyuvencdsp
1712 idctdsp
1713 iirfilter
1714 imdct15
1715 intrax8
1716 iso_media
1717 ividsp
1718 jpegtables
1719 libx262
1720 lgplv3
1721 lpc
1722 lzf
1723 me_cmp
1724 mpeg_er
1725 mpegaudio
1726 mpegaudiodsp
1727 mpegvideo
1728 mpegvideoenc
1729 mss34dsp
1730 pixblockdsp
1731 qpeldsp
1732 qsv
1733 qsvdec
1734 qsvenc
1735 rangecoder
1736 riffdec
1737 riffenc
1738 rtpdec
1739 rtpenc_chain
1740 rv34dsp
1741 sinewin
1742 snappy
1743 srtp
1744 startcode
1745 texturedsp
1746 texturedspenc
1747 tpeldsp
1748 vaapi_encode
1749 vc1dsp
1750 videodsp
1751 vp3dsp
1752 vp56dsp
1753 vp8dsp
1754 wma_freqs
1755 wmv2dsp
1756 "
1757
1758 CMDLINE_SELECT="
1759 $ARCH_EXT_LIST
1760 $CONFIG_LIST
1761 $HAVE_LIST_CMDLINE
1762 $THREADS_LIST
1763 asm
1764 cross_compile
1765 debug
1766 extra_warnings
1767 logging
1768 lto
1769 optimizations
1770 rpath
1771 "
1772
1773 PATHS_LIST="
1774 bindir
1775 datadir
1776 docdir
1777 incdir
1778 libdir
1779 mandir
1780 prefix
1781 shlibdir
1782 "
1783
1784 CMDLINE_SET="
1785 $PATHS_LIST
1786 ar
1787 arch
1788 as
1789 cc
1790 objcc
1791 cpu
1792 cross_prefix
1793 custom_allocator
1794 dep_cc
1795 env
1796 extra_version
1797 host_cc
1798 host_cflags
1799 host_ld
1800 host_ldflags
1801 host_libs
1802 host_os
1803 ld
1804 logfile
1805 malloc_prefix
1806 nm
1807 optflags
1808 pkg_config
1809 pkg_config_flags
1810 random_seed
1811 samples
1812 sysinclude
1813 sysroot
1814 target_exec
1815 target_os
1816 target_path
1817 target_samples
1818 toolchain
1819 "
1820
1821 CMDLINE_APPEND="
1822 extra_cflags
1823 extra_objcflags
1824 host_cppflags
1825 "
1826
1827 # code dependency declarations
1828
1829 # architecture extensions
1830
1831 armv5te_deps="arm"
1832 armv6_deps="arm"
1833 armv6t2_deps="arm"
1834 armv8_deps="aarch64"
1835 neon_deps_any="aarch64 arm"
1836 intrinsics_neon_deps="neon"
1837 vfp_deps_any="aarch64 arm"
1838 vfpv3_deps="vfp"
1839
1840 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1841
1842 altivec_deps="ppc"
1843 ppc4xx_deps="ppc"
1844 vsx_deps="altivec"
1845 power8_deps="vsx"
1846
1847 cpunop_deps="i686"
1848 x86_64_select="i686"
1849 x86_64_suggest="fast_cmov"
1850
1851 amd3dnow_deps="mmx"
1852 amd3dnowext_deps="amd3dnow"
1853 i686_deps="x86"
1854 mmx_deps="x86"
1855 mmxext_deps="mmx"
1856 sse_deps="mmxext"
1857 sse2_deps="sse"
1858 sse3_deps="sse2"
1859 ssse3_deps="sse3"
1860 sse4_deps="ssse3"
1861 sse42_deps="sse4"
1862 avx_deps="sse42"
1863 xop_deps="avx"
1864 fma3_deps="avx"
1865 fma4_deps="avx"
1866 avx2_deps="avx"
1867
1868 mmx_external_deps="yasm"
1869 mmx_inline_deps="inline_asm"
1870 mmx_suggest="mmx_external mmx_inline"
1871
1872 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1873 eval dep=\$${ext}_deps
1874 eval ${ext}_external_deps='"${dep}_external"'
1875 eval ${ext}_inline_deps='"${dep}_inline"'
1876 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1877 done
1878
1879 aligned_stack_if_any="aarch64 ppc x86"
1880 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1881 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1882 fast_unaligned_if_any="aarch64 ppc x86"
1883 simd_align_16_if_any="altivec neon sse"
1884 simd_align_32_if_any="avx"
1885
1886 # system capabilities
1887 symver_if_any="symver_asm_label symver_gnu_asm"
1888 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1889
1890 # threading support
1891 atomics_gcc_if="sync_val_compare_and_swap"
1892 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1893 atomics_win32_if="MemoryBarrier"
1894 atomics_native_if_any="$ATOMICS_LIST"
1895 w32threads_deps="atomics_native"
1896 threads_if_any="$THREADS_LIST"
1897
1898 # subsystems
1899 dct_select="rdft"
1900 dirac_parse_select="golomb"
1901 error_resilience_select="me_cmp"
1902 faandct_deps="faan fdctdsp"
1903 faanidct_deps="faan idctdsp"
1904 h264dsp_select="startcode"
1905 intrax8_select="blockdsp idctdsp"
1906 mdct_select="fft"
1907 rdft_select="fft"
1908 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1909 mpeg_er_select="error_resilience"
1910 mpegaudio_select="mpegaudiodsp"
1911 mpegaudiodsp_select="dct"
1912 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1913 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1914 vc1dsp_select="h264chroma qpeldsp startcode"
1915
1916 # decoders / encoders
1917 aac_decoder_select="imdct15 mdct sinewin"
1918 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1919 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1920 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1921 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1922 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 adpcm_g722_decoder_select="g722dsp"
1924 adpcm_g722_encoder_select="g722dsp"
1925 aic_decoder_select="golomb idctdsp"
1926 alac_encoder_select="lpc"
1927 als_decoder_select="bswapdsp"
1928 amrnb_decoder_select="lsp"
1929 amrwb_decoder_select="lsp"
1930 amv_decoder_select="sp5x_decoder"
1931 ape_decoder_select="bswapdsp"
1932 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1933 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1934 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1935 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1936 atrac1_decoder_select="mdct sinewin"
1937 atrac3_decoder_select="mdct"
1938 atrac3p_decoder_select="mdct sinewin"
1939 bink_decoder_select="blockdsp hpeldsp"
1940 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1941 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1942 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1943 cllc_decoder_select="bswapdsp"
1944 comfortnoise_encoder_select="lpc"
1945 cook_decoder_select="audiodsp mdct sinewin"
1946 cscd_decoder_select="lzo"
1947 cscd_decoder_suggest="zlib"
1948 dca_decoder_select="fmtconvert mdct"
1949 dds_decoder_select="texturedsp"
1950 dnxhd_decoder_select="blockdsp idctdsp"
1951 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1952 dvvideo_decoder_select="dvprofile idctdsp"
1953 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1954 dxa_decoder_deps="zlib"
1955 dxv_decoder_select="lzf texturedsp"
1956 eac3_decoder_select="ac3_decoder"
1957 eac3_encoder_select="ac3_encoder"
1958 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1959 eatgq_decoder_select="aandcttables idctdsp"
1960 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1961 exr_decoder_deps="zlib"
1962 ffv1_decoder_select="golomb rangecoder"
1963 ffv1_encoder_select="rangecoder"
1964 ffvhuff_decoder_select="huffyuv_decoder"
1965 ffvhuff_encoder_select="huffyuv_encoder"
1966 fic_decoder_select="golomb"
1967 flac_decoder_select="flacdsp golomb"
1968 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1969 flashsv_decoder_deps="zlib"
1970 flashsv_encoder_deps="zlib"
1971 flashsv2_decoder_deps="zlib"
1972 flv_decoder_select="h263_decoder"
1973 flv_encoder_select="h263_encoder"
1974 fourxm_decoder_select="blockdsp bswapdsp"
1975 fraps_decoder_select="bswapdsp huffman"
1976 g2m_decoder_deps="zlib"
1977 g2m_decoder_select="blockdsp idctdsp jpegtables"
1978 h261_decoder_select="mpeg_er mpegvideo"
1979 h261_encoder_select="aandcttables mpegvideoenc"
1980 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1981 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1982 h263i_decoder_select="h263_decoder"
1983 h263p_encoder_select="h263_encoder"
1984 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1985 h264_decoder_suggest="error_resilience"
1986 hap_decoder_select="snappy texturedsp"
1987 hap_encoder_deps="libsnappy"
1988 hap_encoder_select="texturedspenc"
1989 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1990 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1991 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1992 iac_decoder_select="imc_decoder"
1993 imc_decoder_select="bswapdsp fft mdct sinewin"
1994 indeo3_decoder_select="hpeldsp"
1995 indeo4_decoder_select="ividsp"
1996 indeo5_decoder_select="ividsp"
1997 interplay_video_decoder_select="hpeldsp"
1998 jpegls_decoder_select="golomb mjpeg_decoder"
1999 jpegls_encoder_select="golomb"
2000 jv_decoder_select="blockdsp"
2001 lagarith_decoder_select="huffyuvdsp"
2002 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2003 loco_decoder_select="golomb"
2004 magicyuv_decoder_select="huffyuvdsp"
2005 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2006 metasound_decoder_select="lsp mdct sinewin"
2007 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2008 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2009 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2010 mjpegb_decoder_select="mjpeg_decoder"
2011 mlp_decoder_select="mlp_parser"
2012 motionpixels_decoder_select="bswapdsp"
2013 mp1_decoder_select="mpegaudio"
2014 mp1float_decoder_select="mpegaudio"
2015 mp2_decoder_select="mpegaudio"
2016 mp2float_decoder_select="mpegaudio"
2017 mp3_decoder_select="mpegaudio"
2018 mp3adu_decoder_select="mpegaudio"
2019 mp3adufloat_decoder_select="mpegaudio"
2020 mp3float_decoder_select="mpegaudio"
2021 mp3on4_decoder_select="mpegaudio"
2022 mp3on4float_decoder_select="mpegaudio"
2023 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2024 mpc8_decoder_select="mpegaudiodsp"
2025 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2026 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2027 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2028 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2029 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2030 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2031 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2032 mpeg4_encoder_select="h263_encoder"
2033 msa1_decoder_select="mss34dsp"
2034 msmpeg4v1_decoder_select="h263_decoder"
2035 msmpeg4v2_decoder_select="h263_decoder"
2036 msmpeg4v2_encoder_select="h263_encoder"
2037 msmpeg4v3_decoder_select="h263_decoder"
2038 msmpeg4v3_encoder_select="h263_encoder"
2039 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2040 mts2_decoder_select="mss34dsp"
2041 mxpeg_decoder_select="mjpeg_decoder"
2042 nellymoser_decoder_select="mdct sinewin"
2043 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2044 nuv_decoder_select="idctdsp lzo"
2045 on2avc_decoder_select="mdct"
2046 opus_decoder_deps="avresample"
2047 opus_decoder_select="imdct15"
2048 png_decoder_deps="zlib"
2049 png_encoder_deps="zlib"
2050 png_encoder_select="huffyuvencdsp"
2051 prores_decoder_select="idctdsp"
2052 prores_encoder_select="fdctdsp"
2053 qcelp_decoder_select="lsp"
2054 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2055 ra_144_encoder_select="audio_frame_queue lpc"
2056 ralf_decoder_select="golomb"
2057 rscc_decoder_deps="zlib"
2058 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2059 rv10_encoder_select="h263_encoder"
2060 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2061 rv20_encoder_select="h263_encoder"
2062 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2063 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 screenpresso_decoder_deps="zlib"
2065 shorten_decoder_select="golomb"
2066 sipr_decoder_select="lsp"
2067 sp5x_decoder_select="mjpeg_decoder"
2068 svq1_decoder_select="hpeldsp"
2069 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2070 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2071 svq3_decoder_suggest="zlib"
2072 tak_decoder_select="audiodsp"
2073 tdsc_decoder_deps="zlib"
2074 tdsc_decoder_select="mjpeg_decoder"
2075 theora_decoder_select="vp3_decoder"
2076 thp_decoder_select="mjpeg_decoder"
2077 tiff_decoder_suggest="zlib"
2078 tiff_encoder_suggest="zlib"
2079 truehd_decoder_select="mlp_decoder"
2080 truemotion2_decoder_select="bswapdsp"
2081 truespeech_decoder_select="bswapdsp"
2082 tscc_decoder_deps="zlib"
2083 txd_decoder_select="texturedsp"
2084 twinvq_decoder_select="mdct lsp sinewin"
2085 utvideo_decoder_select="bswapdsp"
2086 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2087 vble_decoder_select="huffyuvdsp"
2088 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2089 vc1image_decoder_select="vc1_decoder"
2090 vorbis_decoder_select="mdct"
2091 vorbis_encoder_select="mdct"
2092 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2093 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2094 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2095 vp6a_decoder_select="vp6_decoder"
2096 vp6f_decoder_select="vp6_decoder"
2097 vp7_decoder_select="h264pred videodsp vp8dsp"
2098 vp8_decoder_select="h264pred videodsp vp8dsp"
2099 vp9_decoder_select="videodsp"
2100 webp_decoder_select="vp8_decoder"
2101 wmapro_decoder_select="mdct sinewin wma_freqs"
2102 wmav1_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_encoder_select="mdct sinewin wma_freqs"
2104 wmav2_decoder_select="mdct sinewin wma_freqs"
2105 wmav2_encoder_select="mdct sinewin wma_freqs"
2106 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2107 wmv1_decoder_select="h263_decoder"
2108 wmv1_encoder_select="h263_encoder"
2109 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2110 wmv2_encoder_select="h263_encoder wmv2dsp"
2111 wmv3_decoder_select="vc1_decoder"
2112 wmv3image_decoder_select="wmv3_decoder"
2113 zerocodec_decoder_deps="zlib"
2114 zlib_decoder_deps="zlib"
2115 zlib_encoder_deps="zlib"
2116 zmbv_decoder_deps="zlib"
2117 zmbv_encoder_deps="zlib"
2118
2119 # hardware accelerators
2120 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2121 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2122 vaapi_deps="va_va_h"
2123 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2124 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2125 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2126
2127 h263_vaapi_hwaccel_deps="vaapi"
2128 h263_vaapi_hwaccel_select="h263_decoder"
2129 h264_d3d11va_hwaccel_deps="d3d11va"
2130 h264_d3d11va_hwaccel_select="h264_decoder"
2131 h264_dxva2_hwaccel_deps="dxva2"
2132 h264_dxva2_hwaccel_select="h264_decoder"
2133 h264_mmal_hwaccel_deps="mmal"
2134 h264_qsv_hwaccel_deps="libmfx"
2135 h264_vaapi_hwaccel_deps="vaapi"
2136 h264_vaapi_hwaccel_select="h264_decoder"
2137 h264_vda_hwaccel_deps="vda"
2138 h264_vda_hwaccel_select="h264_decoder"
2139 h264_vda_old_hwaccel_deps="vda"
2140 h264_vda_old_hwaccel_select="h264_decoder"
2141 h264_vdpau_hwaccel_deps="vdpau"
2142 h264_vdpau_hwaccel_select="h264_decoder"
2143 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2144 hevc_d3d11va_hwaccel_select="hevc_decoder"
2145 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2146 hevc_dxva2_hwaccel_select="hevc_decoder"
2147 hevc_qsv_hwaccel_deps="libmfx"
2148 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2149 hevc_vdpau_hwaccel_select="hevc_decoder"
2150 mpeg1_vdpau_hwaccel_deps="vdpau"
2151 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2152 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2153 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2154 mpeg2_dxva2_hwaccel_deps="dxva2"
2155 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2156 mpeg2_mmal_hwaccel_deps="mmal"
2157 mpeg2_qsv_hwaccel_deps="libmfx"
2158 mpeg2_vaapi_hwaccel_deps="vaapi"
2159 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_vdpau_hwaccel_deps="vdpau"
2161 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2162 mpeg4_vaapi_hwaccel_deps="vaapi"
2163 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2164 mpeg4_vdpau_hwaccel_deps="vdpau"
2165 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2166 vc1_d3d11va_hwaccel_deps="d3d11va"
2167 vc1_d3d11va_hwaccel_select="vc1_decoder"
2168 vc1_dxva2_hwaccel_deps="dxva2"
2169 vc1_dxva2_hwaccel_select="vc1_decoder"
2170 vc1_mmal_hwaccel_deps="mmal"
2171 vc1_qsv_hwaccel_deps="libmfx"
2172 vc1_vaapi_hwaccel_deps="vaapi"
2173 vc1_vaapi_hwaccel_select="vc1_decoder"
2174 vc1_vdpau_hwaccel_deps="vdpau"
2175 vc1_vdpau_hwaccel_select="vc1_decoder"
2176 vp8_qsv_hwaccel_deps="libmfx"
2177 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2178 vp8_vaapi_hwaccel_select="vp8_decoder"
2179 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2180 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2181 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2182 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2183
2184 # hardware-accelerated codecs
2185 nvenc_deps_any="dlopen LoadLibrary"
2186 nvenc_extralibs='$ldl'
2187 omx_deps="dlopen pthreads"
2188 omx_extralibs='$ldl'
2189 qsvdec_select="qsv"
2190 qsvenc_select="qsv"
2191 vaapi_encode_deps="vaapi"
2192
2193 hwupload_cuda_filter_deps="cuda"
2194 scale_npp_filter_deps="cuda libnpp"
2195
2196 h264_mmal_decoder_deps="mmal"
2197 h264_nvenc_encoder_deps="nvenc"
2198 h264_omx_encoder_deps="omx"
2199 h264_qsv_decoder_deps="libmfx"
2200 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2201 h264_qsv_encoder_deps="libmfx"
2202 h264_qsv_encoder_select="qsvenc"
2203 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2204 h264_vaapi_encoder_select="vaapi_encode golomb"
2205 hevc_nvenc_encoder_deps="nvenc"
2206 hevc_qsv_decoder_deps="libmfx"
2207 hevc_qsv_encoder_deps="libmfx"
2208 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2209 hevc_qsv_encoder_select="qsvenc"
2210 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2211 hevc_vaapi_encoder_select="vaapi_encode golomb"
2212 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2213 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2214 mpeg2_mmal_decoder_deps="mmal"
2215 mpeg2_qsv_decoder_deps="libmfx"
2216 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2217 mpeg2_qsv_encoder_deps="libmfx"
2218 mpeg2_qsv_encoder_select="qsvenc"
2219 mpeg4_omx_encoder_deps="omx"
2220 vc1_mmal_decoder_deps="mmal"
2221 vc1_qsv_decoder_deps="libmfx"
2222 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2223 vp8_qsv_decoder_deps="libmfx"
2224 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
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 mkstemp"
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="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 asyncts_filter_deps="avresample"
2420 blackframe_filter_deps="gpl"
2421 boxblur_filter_deps="gpl"
2422 bs2b_filter_deps="libbs2b"
2423 cropdetect_filter_deps="gpl"
2424 deinterlace_qsv_filter_deps="libmfx"
2425 delogo_filter_deps="gpl"
2426 drawtext_filter_deps="libfreetype"
2427 frei0r_filter_deps="frei0r dlopen"
2428 frei0r_filter_extralibs='$ldl'
2429 frei0r_src_filter_deps="frei0r dlopen"
2430 frei0r_src_filter_extralibs='$ldl'
2431 hdcd_filter_deps="libhdcd"
2432 hqdn3d_filter_deps="gpl"
2433 interlace_filter_deps="gpl"
2434 movie_filter_deps="avcodec avformat"
2435 ocv_filter_deps="libopencv"
2436 resample_filter_deps="avresample"
2437 scale_filter_deps="swscale"
2438 scale_qsv_filter_deps="libmfx"
2439 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2440
2441 # examples
2442 decode_audio_example_deps="avcodec avutil"
2443 decode_video_example_deps="avcodec avutil"
2444 encode_audio_example_deps="avcodec avutil"
2445 encode_video_example_deps="avcodec avutil"
2446 filter_audio_example_deps="avfilter avutil"
2447 metadata_example_deps="avformat avutil"
2448 output_example_deps="avcodec avformat avresample avutil swscale"
2449 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2450 transcode_aac_example_deps="avcodec avformat avresample"
2451
2452 # libraries, in linking order
2453 avcodec_deps="avutil"
2454 avdevice_deps="avformat avcodec avutil"
2455 avfilter_deps="avutil"
2456 avformat_deps="avcodec avutil"
2457 avresample_deps="avutil"
2458 swscale_deps="avutil"
2459
2460 # programs
2461 avconv_deps="avcodec avfilter avformat avresample swscale"
2462 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2463 fps_filter null_filter resample_filter scale_filter
2464 trim_filter"
2465 avplay_deps="avcodec avfilter avformat avresample sdl"
2466 avplay_libs='$sdl_libs'
2467 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2468 avprobe_deps="avcodec avformat"
2469
2470 # documentation
2471 pod2man_deps="doc"
2472 texi2html_deps="doc"
2473
2474 # default parameters
2475
2476 logfile="config.log"
2477
2478 # installation paths
2479 prefix_default="/usr/local"
2480 bindir_default='${prefix}/bin'
2481 datadir_default='${prefix}/share/avconv'
2482 docdir_default='${prefix}/share/doc/libav'
2483 incdir_default='${prefix}/include'
2484 libdir_default='${prefix}/lib'
2485 mandir_default='${prefix}/share/man'
2486 shlibdir_default="$libdir_default"
2487
2488 # toolchain
2489 ar_default="ar"
2490 cc_default="gcc"
2491 host_cc_default="gcc"
2492 ln_s="ln -s -f"
2493 nm_default="nm -g"
2494 objformat="elf"
2495 pkg_config_default=pkg-config
2496 ranlib="ranlib"
2497 strip="strip"
2498 version_script='--version-script'
2499 yasmexe="yasm"
2500
2501 # machine
2502 arch_default=$(uname -m)
2503 cpu="generic"
2504 intrinsics="none"
2505
2506 # OS
2507 target_os_default=$(tolower $(uname -s))
2508 host_os=$target_os_default
2509
2510 # configurable options
2511 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2512
2513 enable asm
2514 enable debug
2515 enable doc
2516 enable faan faandct faanidct
2517 enable optimizations
2518 enable safe_bitstream_reader
2519 enable static
2520 enable swscale_alpha
2521 enable valgrind_backtrace
2522
2523 # By default, enable only those hwaccels that have no external dependencies.
2524 enable d3d11va dxva2 vda vdpau
2525
2526 # build settings
2527 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2528 LIBPREF="lib"
2529 LIBSUF=".a"
2530 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2531 SLIBPREF="lib"
2532 SLIBSUF=".so"
2533 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2534 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2535 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2536 LIB_INSTALL_EXTRA_CMD='$$(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 $NAME)_LIST
2740 ;;
2741 --help|-h) show_help
2742 ;;
2743 --quiet|-q) quiet=yes
2744 ;;
2745 *)
2746 optname="${opt%%=*}"
2747 optname="${optname#--}"
2748 optname=$(echo "$optname" | sed 's/-/_/g')
2749 if is_in $optname $CMDLINE_SET; then
2750 eval $optname='$optval'
2751 elif is_in $optname $CMDLINE_APPEND; then
2752 append $optname "$optval"
2753 else
2754 die_unknown $opt
2755 fi
2756 ;;
2757 esac
2758 done
2759
2760 for e in $env; do
2761 eval "export $e"
2762 done
2763
2764 disabled logging && logfile=/dev/null
2765
2766 # Die early if licensing-related configure options are incompatible.
2767 die_license_disabled() {
2768 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2769 }
2770
2771 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2772 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2773 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2774
2775 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2776
2777 # Disable all the library-specific components if the library itself
2778 # is disabled, see AVCODEC_LIST and following _LIST variables.
2779
2780 disable_components(){
2781 disabled ${1} && disable $(
2782 eval components="\$$(toupper ${1})_COMPONENTS"
2783 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2784 )
2785 }
2786
2787 map 'disable_components $v' $LIBRARY_LIST
2788
2789 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2790 set >> $logfile
2791
2792 case "$toolchain" in
2793 *-asan)
2794 cc_default="${toolchain%-asan}"
2795 add_cflags -fsanitize=address
2796 add_ldflags -fsanitize=address
2797 ;;
2798 *-msan)
2799 cc_default="${toolchain%-msan}"
2800 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2801 add_ldflags -fsanitize=memory
2802 ;;
2803 *-tsan)
2804 cc_default="${toolchain%-tsan}"
2805 add_cflags -fsanitize=thread -pie
2806 add_ldflags -fsanitize=thread -pie
2807 case "$toolchain" in
2808 gcc-tsan)
2809 add_cflags -fPIC
2810 add_ldflags -fPIC
2811 ;;
2812 esac
2813 ;;
2814 *-usan)
2815 cc_default="${toolchain%-usan}"
2816 add_cflags -fsanitize=undefined
2817 add_ldflags -fsanitize=undefined
2818 case "$toolchain" in
2819 clang-usan)
2820 add_cflags -O1
2821 ;;
2822 esac
2823 ;;
2824 valgrind-*)
2825 target_exec_default="valgrind"
2826 case "$toolchain" in
2827 valgrind-massif)
2828 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2829 ;;
2830 valgrind-memcheck)
2831 target_exec_args="--track-origins=yes --leak-check=full"
2832 ;;
2833 esac
2834 ;;
2835 msvc)
2836 # Check whether the current MSVC version needs the C99 converter.
2837 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2838 # support enough of C99 to build libav. Default to the new
2839 # behaviour if the regexp was unable to match anything, since this
2840 # successfully parses the version number of existing supported
2841 # versions that require the converter (MSVC 2010 and 2012).
2842 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2843 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2844 cc_default="cl"
2845 else
2846 cc_default="c99wrap cl"
2847 fi
2848 ld_default="$source_path/compat/windows/mslink"
2849 nm_default="dumpbin -symbols"
2850 ar_default="lib"
2851 case "$arch" in
2852 arm*)
2853 as_default="armasm"
2854 ;;
2855 esac
2856 target_os_default="win32"
2857 # Use a relative path for TMPDIR. This makes sure all the
2858 # ffconf temp files are written with a relative path, avoiding
2859 # issues with msys/win32 path conversion for MSVC parameters
2860 # such as -Fo<file> or -out:<file>.
2861 TMPDIR=.
2862 ;;
2863 icl)
2864 cc_default="icl"
2865 ld_default="xilink"
2866 nm_default="dumpbin -symbols"
2867 ar_default="xilib"
2868 target_os_default="win32"
2869 TMPDIR=.
2870 ;;
2871 gcov)
2872 add_cflags -fprofile-arcs -ftest-coverage
2873 add_ldflags -fprofile-arcs -ftest-coverage
2874 ;;
2875 llvm-cov)
2876 add_cflags -fprofile-arcs -ftest-coverage
2877 add_ldflags --coverage
2878 ;;
2879 hardened)
2880 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2881 add_cflags -fno-strict-overflow -fstack-protector-all
2882 add_ldflags -Wl,-z,relro -Wl,-z,now
2883 ;;
2884 ?*)
2885 die "Unknown toolchain $toolchain"
2886 ;;
2887 esac
2888
2889 test -n "$cross_prefix" && enable cross_compile
2890
2891 if enabled cross_compile; then
2892 test -n "$arch" && test -n "$target_os" ||
2893 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2894 fi
2895
2896 ar_default="${cross_prefix}${ar_default}"
2897 cc_default="${cross_prefix}${cc_default}"
2898 occ_default="${cross_prefix}${occ_default}"
2899 nm_default="${cross_prefix}${nm_default}"
2900 pkg_config_default="${cross_prefix}${pkg_config_default}"
2901 ranlib="${cross_prefix}${ranlib}"
2902 strip="${cross_prefix}${strip}"
2903
2904 sysinclude_default="${sysroot}/usr/include"
2905
2906 set_default arch cc pkg_config sysinclude target_exec target_os
2907 enabled cross_compile || host_cc_default=$cc
2908 set_default host_cc
2909
2910 if ! $pkg_config --version >/dev/null 2>&1; then
2911 warn "$pkg_config not found, library detection may fail."
2912 pkg_config=false
2913 fi
2914
2915 exesuf() {
2916 case $1 in
2917 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2918 esac
2919 }
2920
2921 EXESUF=$(exesuf $target_os)
2922 HOSTEXESUF=$(exesuf $host_os)
2923
2924 # set temporary file name
2925 : ${TMPDIR:=$TEMPDIR}
2926 : ${TMPDIR:=$TMP}
2927 : ${TMPDIR:=/tmp}
2928
2929 if ! check_cmd mktemp -u XXXXXX; then
2930 # simple replacement for missing mktemp
2931 # NOT SAFE FOR GENERAL USE
2932 mktemp(){
2933 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2934 }
2935 fi
2936
2937 tmpfile(){
2938 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2939 (set -C; exec > $tmp) 2>/dev/null ||
2940 die "Unable to create temporary file in $TMPDIR."
2941 append TMPFILES $tmp
2942 eval $1=$tmp
2943 }
2944
2945 trap 'rm -f -- $TMPFILES' EXIT
2946
2947 tmpfile TMPASM .asm
2948 tmpfile TMPC .c
2949 tmpfile TMPE $EXESUF
2950 tmpfile TMPH .h
2951 tmpfile TMPO .o
2952 tmpfile TMPS .S
2953 tmpfile TMPSH .sh
2954 tmpfile TMPV .ver
2955
2956 unset -f mktemp
2957
2958 chmod +x $TMPE
2959
2960 # make sure we can execute files in $TMPDIR
2961 cat > $TMPSH 2>> $logfile <<EOF
2962 #! /bin/sh
2963 EOF
2964 chmod +x $TMPSH >> $logfile 2>&1
2965 if ! $TMPSH >> $logfile 2>&1; then
2966 cat <<EOF
2967 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2968 variable to another directory and make sure that it is not mounted noexec.
2969 EOF
2970 die "Sanity test failed."
2971 fi
2972
2973 armasm_flags(){
2974 for flag; do
2975 case $flag in
2976 # Filter out MSVC cl.exe options from cflags that shouldn't
2977 # be passed to gas-preprocessor
2978 -M[TD]*) ;;
2979 *) echo $flag ;;
2980 esac
2981 done
2982 }
2983
2984 ccc_flags(){
2985 for flag; do
2986 case $flag in
2987 -std=c99) echo -c99 ;;
2988 -mcpu=*) echo -arch ${flag#*=} ;;
2989 -mieee) echo -ieee ;;
2990 -O*|-fast) echo $flag ;;
2991 -fno-math-errno) echo -assume nomath_errno ;;
2992 -g) echo -g3 ;;
2993 -Wall) echo -msg_enable level2 ;;
2994 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2995 -Wl,*) echo $flag ;;
2996 -f*|-W*) ;;
2997 *) echo $flag ;;
2998 esac
2999 done
3000 }
3001
3002 cparser_flags(){
3003 for flag; do
3004 case $flag in
3005 -Wno-switch) echo -Wno-switch-enum ;;
3006 -Wno-format-zero-length) ;;
3007 -Wdisabled-optimization) ;;
3008 -Wno-pointer-sign) echo -Wno-other ;;
3009 *) echo $flag ;;
3010 esac
3011 done
3012 }
3013
3014 msvc_common_flags(){
3015 for flag; do
3016 case $flag in
3017 # In addition to specifying certain flags under the compiler
3018 # specific filters, they must be specified here as well or else the
3019 # generic catch all at the bottom will print the original flag.
3020 -Wall) ;;
3021 -std=c99) ;;
3022 # Common flags
3023 -fomit-frame-pointer) ;;
3024 -g) echo -Z7 ;;
3025 -fno-math-errno) ;;
3026 -fno-common) ;;
3027 -fno-signed-zeros) ;;
3028 -fPIC) ;;
3029 -mthumb) ;;
3030 -march=*) ;;
3031 -lz) echo zlib.lib ;;
3032 -lavicap32) echo vfw32.lib user32.lib ;;
3033 -lx264) echo libx264.lib ;;
3034 -l*) echo ${flag#-l}.lib ;;
3035 -L*) echo -libpath:${flag#-L} ;;
3036 *) echo $flag ;;
3037 esac
3038 done
3039 }
3040
3041 msvc_flags(){
3042 msvc_common_flags "$@"
3043 for flag; do
3044 case $flag in
3045 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3046 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3047 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3048 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3049 esac
3050 done
3051 }
3052
3053 icl_flags(){
3054 msvc_common_flags "$@"
3055 for flag; do
3056 case $flag in
3057 # Despite what Intel's documentation says -Wall, which is supported
3058 # on Windows, does enable remarks so disable them here.
3059 -Wall) echo $flag -Qdiag-disable:remark ;;
3060 -std=c99) echo -Qstd=c99 ;;
3061 esac
3062 done
3063 }
3064
3065 pgi_flags(){
3066 for flag; do
3067 case $flag in
3068 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3069 -fomit-frame-pointer) echo -Mnoframe ;;
3070 -g) echo -gopt ;;
3071 *) echo $flag ;;
3072 esac
3073 done
3074 }
3075
3076 suncc_flags(){
3077 for flag; do
3078 case $flag in
3079 -march=*|-mcpu=*)
3080 case "${flag#*=}" in
3081 native) echo -xtarget=native ;;
3082 v9|niagara) echo -xarch=sparc ;;
3083 ultrasparc) echo -xarch=sparcvis ;;
3084 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3085 i586|pentium) echo -xchip=pentium ;;
3086 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3087 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3088 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3089 pentium4*) echo -xtarget=pentium4 ;;
3090 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3091 *-sse3) echo -xarch=sse3 ;;
3092 core2) echo -xarch=ssse3 -xchip=core2 ;;
3093 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3094 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3095 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3096 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3097 k8|opteron|athlon64|athlon-fx)
3098 echo -xarch=sse2a ;;
3099 athlon*) echo -xarch=pentium_proa ;;
3100 esac
3101 ;;
3102 -std=c99) echo -xc99 ;;
3103 -fomit-frame-pointer) echo -xregs=frameptr ;;
3104 -fPIC) echo -KPIC -xcode=pic32 ;;
3105 -W*,*) echo $flag ;;
3106 -f*-*|-W*|-mimpure-text) ;;
3107 -shared) echo -G ;;
3108 *) echo $flag ;;
3109 esac
3110 done
3111 }
3112
3113 tms470_flags(){
3114 for flag; do
3115 case $flag in
3116 -march=*|-mcpu=*)
3117 case "${flag#*=}" in
3118 armv7-a|cortex-a*) echo -mv=7a8 ;;
3119 armv7-r|cortex-r*) echo -mv=7r4 ;;
3120 armv7-m|cortex-m*) echo -mv=7m3 ;;
3121 armv6*|arm11*) echo -mv=6 ;;
3122 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3123 echo -mv=5e ;;
3124 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3125 esac
3126 ;;
3127 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3128 -mfpu=vfp) echo --float_support=vfpv2 ;;
3129 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3130 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3131 -msoft-float) echo --float_support=vfplib ;;
3132 -O[0-3]|-mf=*) echo $flag ;;
3133 -g) echo -g -mn ;;
3134 -pds=*) echo $flag ;;
3135 -D*|-I*) echo $flag ;;
3136 --gcc|--abi=*) echo $flag ;;
3137 -me) echo $flag ;;
3138 esac
3139 done
3140 }
3141
3142 probe_cc(){
3143 pfx=$1
3144 _cc=$2
3145
3146 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3147 unset _ld_o _ldflags _ld_lib _ld_path
3148 unset _depflags _DEPCMD _DEPFLAGS
3149 _flags_filter=echo
3150
3151 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3152 _type=llvm_gcc
3153 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3154 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3155 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3156 _cflags_speed='-O3'
3157 _cflags_size='-Os'
3158 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3159 _type=gcc
3160 gcc_version=$($_cc --version | head -n1)
3161 gcc_basever=$($_cc -dumpversion)
3162 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3163 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3164 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3165 if ! $_cc -dumpversion | grep -q '^2\.'; then
3166 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3167 fi
3168 _cflags_speed='-O3'
3169 _cflags_size='-Os'
3170 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3171 _type=icc
3172 _ident=$($_cc --version | head -n1)
3173 _depflags='-MMD'
3174 _cflags_speed='-O3'
3175 _cflags_size='-Os'
3176 _cflags_noopt='-O1'
3177 elif $_cc -v 2>&1 | grep -q xlc; then
3178 _type=xlc
3179 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3180 _cflags_speed='-O5'
3181 _cflags_size='-O5 -qcompact'
3182 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3183 _type=ccc
3184 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3185 _DEPFLAGS='-M'
3186 _cflags_speed='-fast'
3187 _cflags_size='-O1'
3188 _flags_filter=ccc_flags
3189 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3190 test -d "$sysroot" || die "No valid sysroot specified."
3191 _type=armcc
3192 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3193 armcc_conf="$PWD/armcc.conf"
3194 $_cc --arm_linux_configure \
3195 --arm_linux_config_file="$armcc_conf" \
3196 --configure_sysroot="$sysroot" \
3197 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3198 die "Error creating armcc configuration file."
3199 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3200 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3201 as_default="${cross_prefix}gcc"
3202 _depflags='-MMD'
3203 _cflags_speed='-O3'
3204 _cflags_size='-Os'
3205 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3206 _type=tms470
3207 _ident=$($_cc -version | head -n1 | tr -s ' ')
3208 _flags='--gcc --abi=eabi -me'
3209 _cc_e='-ppl -fe=$@'
3210 _cc_o='-fe=$@'
3211 _depflags='-ppa -ppd=$(@:.o=.d)'
3212 _cflags_speed='-O3 -mf=5'
3213 _cflags_size='-O3 -mf=2'
3214 _flags_filter=tms470_flags
3215 elif $_cc -v 2>&1 | grep -q clang; then
3216 _type=clang
3217 _ident=$($_cc --version 2>/dev/null | head -n1)
3218 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3219 _cflags_speed='-O3'
3220 _cflags_size='-Os'
3221 elif $_cc -V 2>&1 | grep -q Sun; then
3222 _type=suncc
3223 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3224 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3225 _DEPFLAGS='-xM1 -xc99'
3226 _ldflags='-std=c99'
3227 _cflags_speed='-O5'
3228 _cflags_size='-O5 -xspace'
3229 _flags_filter=suncc_flags
3230 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3231 _type=pathscale
3232 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3233 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3234 _cflags_speed='-O2'
3235 _cflags_size='-Os'
3236 _flags_filter='filter_out -Wdisabled-optimization'
3237 elif $_cc -v 2>&1 | grep -q Open64; then
3238 _type=open64
3239 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3240 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3241 _cflags_speed='-O2'
3242 _cflags_size='-Os'
3243 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3244 elif $_cc -V 2>&1 | grep -q Portland; then
3245 _type=pgi
3246 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3247 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3248 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3249 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3250 _cflags_noopt="-O1"
3251 _flags_filter=pgi_flags
3252 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3253 _type=armasm
3254 _ident=$($_cc | head -n1)
3255 # 4509: "This form of conditional instruction is deprecated"
3256 _flags="-nologo -ignore 4509"
3257 _flags_filter=armasm_flags
3258 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3259 _type=msvc
3260 _ident=$($_cc 2>&1 | head -n1)
3261 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3262 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3263 _cflags_speed="-O2"
3264 _cflags_size="-O1"
3265 if $_cc -nologo- 2>&1 | grep -q Linker; then
3266 _ld_o='-out:$@'
3267 else
3268 _ld_o='-Fe$@'
3269 fi
3270 _cc_o='-Fo$@'
3271 _cc_e='-P -Fi$@'
3272 _flags_filter=msvc_flags
3273 _ld_lib='lib%.a'
3274 _ld_path='-libpath:'
3275 _flags='-nologo'
3276 elif $_cc 2>&1 | grep -q Intel; then
3277 _type=icl
3278 _ident=$($_cc 2>&1 | head -n1)
3279 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3280 # Not only is O3 broken on 13.x+ but it is slower on all previous
3281 # versions (tested) as well.
3282 _cflags_speed="-O2"
3283 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3284 if $_cc 2>&1 | grep -q Linker; then
3285 _ld_o='-out:$@'
3286 else
3287 _ld_o='-Fe$@'
3288 fi
3289 _cc_o='-Fo$@'
3290 _cc_e='-P'
3291 _flags_filter=icl_flags
3292 _ld_lib='lib%.a'
3293 _ld_path='-libpath:'
3294 # -Qdiag-error to make icl error when seeing certain unknown arguments
3295 _flags='-nologo -Qdiag-error:4044,10157'
3296 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3297 # with MSVC which enables it by default.
3298 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3299 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3300 # lld can emulate multiple different linkers; in ms link.exe mode,
3301 # the -? parameter gives the help output which contains an identifyable
3302 # string, while it gives an error in other modes.
3303 _type=lld-link
3304 # The link.exe mode doesn't have a switch for getting the version,
3305 # but we can force it back to gnu mode and get the version from there.
3306 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3307 _ld_o='-out:$@'
3308 _flags_filter=msvc_flags
3309 _ld_lib='lib%.a'
3310 _ld_path='-libpath:'
3311 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3312 _type=cparser
3313 _ident=$($_cc --version | head -n1)
3314 _depflags='-MMD'
3315 _cflags_speed='-O4'
3316 _cflags_size='-O2'
3317 _flags_filter=cparser_flags
3318 fi
3319
3320 eval ${pfx}_type=\$_type
3321 eval ${pfx}_ident=\$_ident
3322 }
3323
3324 set_ccvars(){
3325 eval ${1}_C=\${_cc_c-\${${1}_C}}
3326 eval ${1}_E=\${_cc_e-\${${1}_E}}
3327 eval ${1}_O=\${_cc_o-\${${1}_O}}
3328
3329 if [ -n "$_depflags" ]; then
3330 eval ${1}_DEPFLAGS=\$_depflags
3331 else
3332 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3333 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3334 eval DEP${1}FLAGS=\$_flags
3335 fi
3336 }
3337
3338 probe_cc cc "$cc"
3339 cflags_filter=$_flags_filter
3340 cflags_speed=$_cflags_speed
3341 cflags_size=$_cflags_size
3342 cflags_noopt=$_cflags_noopt
3343 add_cflags $_flags $_cflags
3344 cc_ldflags=$_ldflags
3345 set_ccvars CC
3346
3347 probe_cc hostcc "$host_cc"
3348 host_cflags_filter=$_flags_filter
3349 add_host_cflags $_flags $_cflags
3350 set_ccvars HOSTCC
3351
3352 test -n "$cc_type" && enable $cc_type ||
3353 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3354
3355 : ${as_default:=$cc}
3356 : ${objcc_default:=$cc}
3357 : ${dep_cc_default:=$cc}
3358 : ${ld_default:=$cc}
3359 : ${host_ld_default:=$host_cc}
3360 set_default ar as objcc dep_cc ld host_ld
3361
3362 probe_cc as "$as"
3363 asflags_filter=$_flags_filter
3364 add_asflags $_flags $_cflags
3365 set_ccvars AS
3366
3367 probe_cc objcc "$objcc"
3368 objcflags_filter=$_flags_filter
3369 add_objcflags $_flags $_cflags
3370 set_ccvars OBJC
3371
3372 probe_cc ld "$ld"
3373 ldflags_filter=$_flags_filter
3374 add_ldflags $_flags $_ldflags
3375 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3376 LD_O=${_ld_o-$LD_O}
3377 LD_LIB=${_ld_lib-$LD_LIB}
3378 LD_PATH=${_ld_path-$LD_PATH}
3379
3380 probe_cc hostld "$host_ld"
3381 host_ldflags_filter=$_flags_filter
3382 add_host_ldflags $_flags $_ldflags
3383 HOSTLD_O=${_ld_o-$HOSTLD_O}
3384
3385 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3386 probe_cc depcc "$dep_cc"
3387 CCDEP=${_DEPCMD:-$DEPCMD}
3388 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3389 DEPCCFLAGS=$_flags
3390 fi
3391
3392 if $ar 2>&1 | grep -q Microsoft; then
3393 arflags="-nologo"
3394 ar_o='-out:$@'
3395 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3396 arflags="rq"
3397 ar_o='$@'
3398 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3399 arflags='-Xany -r -c'
3400 ar_o='$@'
3401 else
3402 arflags="rc"
3403 ar_o='$@'
3404 fi
3405
3406 add_cflags $extra_cflags
3407 add_objcflags $extra_objcflags
3408 add_asflags $extra_cflags
3409
3410 if test -n "$sysroot"; then
3411 case "$cc_type" in
3412 gcc|llvm_gcc|clang)
3413 add_cppflags --sysroot="$sysroot"
3414 add_ldflags --sysroot="$sysroot"
3415 ;;
3416 tms470)
3417 add_cppflags -I"$sysinclude"
3418 add_ldflags --sysroot="$sysroot"
3419 ;;
3420 esac
3421 fi
3422
3423 if test "$cpu" = host; then
3424 enabled cross_compile &&
3425 die "--cpu=host makes no sense when cross-compiling."
3426
3427 case "$cc_type" in
3428 gcc|llvm_gcc)
3429 check_native(){
3430 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3431 sed -n "/cc1.*$1=/{
3432 s/.*$1=\\([^ ]*\\).*/\\1/
3433 p
3434 q
3435 }" $TMPE
3436 }
3437 cpu=$(check_native -march || check_native -mcpu)
3438 ;;
3439 esac
3440
3441 test "${cpu:-host}" = host &&
3442 die "--cpu=host not supported with compiler $cc"
3443 fi
3444
3445 # Deal with common $arch aliases
3446 case "$arch" in
3447 aarch64|arm64)
3448 arch="aarch64"
3449 ;;
3450 arm*)
3451 arch="arm"
3452 ;;
3453 mips*|IP*)
3454 case "$arch" in
3455 *el)
3456 add_cppflags -EL
3457 add_ldflags -EL
3458 ;;
3459 *eb)
3460 add_cppflags -EB
3461 add_ldflags -EB
3462 ;;
3463 esac
3464 arch="mips"
3465 ;;
3466 parisc*|hppa*)
3467 arch="parisc"
3468 ;;
3469 "Power Macintosh"|ppc*|powerpc*)
3470 arch="ppc"
3471 ;;
3472 s390|s390x)
3473 arch="s390"
3474 ;;
3475 sh4|sh)
3476 arch="sh4"
3477 ;;
3478 sun4u|sparc*)
3479 arch="sparc"
3480 ;;
3481 tilegx|tile-gx)
3482 arch="tilegx"
3483 ;;
3484 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3485 arch="x86"
3486 ;;
3487 esac
3488
3489 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3490 enable $arch
3491
3492 # Add processor-specific flags
3493 if enabled aarch64; then
3494
3495 case $cpu in
3496 armv*)
3497 cpuflags="-march=$cpu"
3498 ;;
3499 *)
3500 cpuflags="-mcpu=$cpu"
3501 ;;
3502 esac
3503
3504 elif enabled alpha; then
3505
3506 cpuflags="-mcpu=$cpu"
3507
3508 elif enabled arm; then
3509
3510 check_arm_arch() {
3511 check_cpp_condition stddef.h \
3512 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3513 $cpuflags
3514 }
3515
3516 probe_arm_arch() {
3517 if check_arm_arch 4; then echo armv4
3518 elif check_arm_arch 4T; then echo armv4t
3519 elif check_arm_arch 5; then echo armv5
3520 elif check_arm_arch 5E; then echo armv5e
3521 elif check_arm_arch 5T; then echo armv5t
3522 elif check_arm_arch 5TE; then echo armv5te
3523 elif check_arm_arch 5TEJ; then echo armv5te
3524 elif check_arm_arch 6; then echo armv6
3525 elif check_arm_arch 6J; then echo armv6j
3526 elif check_arm_arch 6K; then echo armv6k
3527 elif check_arm_arch 6Z; then echo armv6z
3528 elif check_arm_arch 6ZK; then echo armv6zk
3529 elif check_arm_arch 6T2; then echo armv6t2
3530 elif check_arm_arch 7; then echo armv7
3531 elif check_arm_arch 7A 7_A; then echo armv7-a
3532 elif check_arm_arch 7S; then echo armv7-a
3533 elif check_arm_arch 7R 7_R; then echo armv7-r
3534 elif check_arm_arch 7M 7_M; then echo armv7-m
3535 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3536 elif check_arm_arch 8A 8_A; then echo armv8-a
3537 fi
3538 }
3539
3540 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3541
3542 case $cpu in
3543 armv*)
3544 cpuflags="-march=$cpu"
3545 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3546 ;;
3547 *)
3548 cpuflags="-mcpu=$cpu"
3549 case $cpu in
3550 cortex-a*) subarch=armv7a ;;
3551 cortex-r*) subarch=armv7r ;;
3552 cortex-m*) enable thumb; subarch=armv7m ;;
3553 arm11*) subarch=armv6 ;;
3554 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3555 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3556 *) subarch=$(probe_arm_arch) ;;
3557 esac
3558 ;;
3559 esac
3560
3561 case "$subarch" in
3562 armv5t*) enable fast_clz ;;
3563 armv[6-8]*) enable fast_clz fast_unaligned ;;
3564 esac
3565
3566 elif enabled avr32; then
3567
3568 case $cpu in
3569 ap7[02]0[0-2])
3570 subarch="avr32_ap"
3571 cpuflags="-mpart=$cpu"
3572 ;;
3573 ap)
3574 subarch="avr32_ap"
3575 cpuflags="-march=$cpu"
3576 ;;
3577 uc3[ab]*)
3578 subarch="avr32_uc"
3579 cpuflags="-mcpu=$cpu"
3580 ;;
3581 uc)
3582 subarch="avr32_uc"
3583 cpuflags="-march=$cpu"
3584 ;;
3585 esac
3586
3587 elif enabled bfin; then
3588
3589 cpuflags="-mcpu=$cpu"
3590
3591 elif enabled mips; then
3592
3593 cpuflags="-march=$cpu"
3594
3595 elif enabled ppc; then
3596
3597 disable ldbrx
3598
3599 case $(tolower $cpu) in
3600 601|ppc601|powerpc601)
3601 cpuflags="-mcpu=601"
3602 disable altivec
3603 ;;
3604 603*|ppc603*|powerpc603*)
3605 cpuflags="-mcpu=603"
3606 disable altivec
3607 ;;
3608 604*|ppc604*|powerpc604*)
3609 cpuflags="-mcpu=604"
3610 disable altivec
3611 ;;
3612 g3|75*|ppc75*|powerpc75*)
3613 cpuflags="-mcpu=750"
3614 disable altivec
3615 ;;
3616 g4|745*|ppc745*|powerpc745*)
3617 cpuflags="-mcpu=7450"
3618 disable vsx
3619 ;;
3620 74*|ppc74*|powerpc74*)
3621 cpuflags="-mcpu=7400"
3622 disable vsx
3623 ;;
3624 g5|970|ppc970|powerpc970)
3625 cpuflags="-mcpu=970"
3626 disable vsx
3627 ;;
3628 power[3-6]*)
3629 cpuflags="-mcpu=$cpu"
3630 disable vsx
3631 ;;
3632 power[7-8]*)
3633 cpuflags="-mcpu=$cpu"
3634 enable ldbrx
3635 ;;
3636 cell)
3637 cpuflags="-mcpu=cell"
3638 enable ldbrx
3639 disable vsx
3640 ;;
3641 e500mc)
3642 cpuflags="-mcpu=e500mc"
3643 disable altivec
3644 ;;
3645 e500v2)
3646 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3647 disable altivec
3648 disable dcbzl
3649 ;;
3650 e500)
3651 cpuflags="-mcpu=8540 -mhard-float"
3652 disable altivec
3653 disable dcbzl
3654 ;;
3655 esac
3656
3657 elif enabled sparc; then
3658
3659 case $cpu in
3660 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3661 cpuflags="-mcpu=$cpu"
3662 ;;
3663 ultrasparc*|niagara[234])
3664 cpuflags="-mcpu=$cpu"
3665 ;;
3666 esac
3667
3668 elif enabled x86; then
3669
3670 case $cpu in
3671 i[345]86|pentium)
3672 cpuflags="-march=$cpu"
3673 disable i686
3674 disable mmx
3675 ;;
3676 # targets that do NOT support nopl and conditional mov (cmov)
3677 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3678 cpuflags="-march=$cpu"
3679 disable i686
3680 ;;
3681 # targets that do support nopl and conditional mov (cmov)
3682 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3683 cpuflags="-march=$cpu"
3684 enable i686
3685 enable fast_cmov
3686 ;;
3687 # targets that do support conditional mov but on which it's slow
3688 pentium4|pentium4m|prescott|nocona)
3689 cpuflags="-march=$cpu"
3690 enable i686
3691 disable fast_cmov
3692 ;;
3693 esac
3694
3695 fi
3696
3697 if [ "$cpu" != generic ]; then
3698 add_cflags $cpuflags
3699 add_asflags $cpuflags
3700 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3701 fi
3702
3703 # compiler sanity check
3704 check_exec <<EOF
3705 int main(void){ return 0; }
3706 EOF
3707 if test "$?" != 0; then
3708 echo "$cc is unable to create an executable file."
3709 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3710 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3711 echo "Only do this if you know what cross compiling means."
3712 fi
3713 die "C compiler test failed."
3714 fi
3715
3716 add_cppflags -D_ISOC99_SOURCE
3717
3718 # some compilers silently accept -std=c11, so we also need to check that the
3719 # version macro is defined properly
3720 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3721 add_cflags -std=c11
3722 else
3723 check_cflags -std=c99
3724 fi
3725
3726 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3727 #include <stdlib.h>
3728 EOF
3729 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3730 #include <stdlib.h>
3731 EOF
3732
3733 add_host_cppflags -D_ISOC99_SOURCE
3734 check_host_cflags -std=c99
3735 check_host_cflags -Wall
3736 check_host_cflags -O3
3737
3738 check_64bit(){
3739 arch32=$1
3740 arch64=$2
3741 expr=$3
3742 check_code cc "" "int test[2*($expr) - 1]" &&
3743 subarch=$arch64 || subarch=$arch32
3744 }
3745
3746 case "$arch" in
3747 aarch64|alpha|ia64)
3748 spic=$shared
3749 ;;
3750 mips)
3751 check_64bit mips mips64 '_MIPS_SIM > 1'
3752 spic=$shared
3753 ;;
3754 parisc)
3755 check_64bit parisc parisc64 'sizeof(void *) > 4'
3756 spic=$shared
3757 ;;
3758 ppc)
3759 check_64bit ppc ppc64 'sizeof(void *) > 4'
3760 spic=$shared
3761 ;;
3762 s390)
3763 check_64bit s390 s390x 'sizeof(void *) > 4'
3764 spic=$shared
3765 ;;
3766 sparc)
3767 check_64bit sparc sparc64 'sizeof(void *) > 4'
3768 spic=$shared
3769 ;;
3770 x86)
3771 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3772 if test "$subarch" = "x86_64"; then
3773 spic=$shared
3774 fi
3775 ;;
3776 esac
3777
3778 enable $subarch
3779 enabled spic && enable_weak pic
3780
3781 # OS specific
3782 case $target_os in
3783 aix)
3784 SHFLAGS=-shared
3785 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3786 enabled shared && add_ldflags -Wl,-brtl
3787 ;;
3788 android)
3789 disable symver
3790 enable section_data_rel_ro
3791 SLIB_INSTALL_NAME='$(SLIBNAME)'
3792 SLIB_INSTALL_LINKS=
3793 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3794 ;;
3795 haiku)
3796 prefix_default="/boot/common"
3797 network_extralibs="-lnetwork"
3798 host_libs=
3799 ;;
3800 sunos)
3801 SHFLAGS='-shared -Wl,-h,$$(@F)'
3802 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3803 network_extralibs="-lsocket -lnsl"
3804 # When using suncc to build, the Solaris linker will mark
3805 # an executable with each instruction set encountered by
3806 # the Solaris assembler. As our libraries contain their own
3807 # guards for processor-specific code, instead suppress
3808 # generation of the HWCAPS ELF section on Solaris x86 only.
3809 enabled_all suncc x86 &&
3810 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3811 add_ldflags -Wl,-M,mapfile
3812 nm_default='nm -P -g'
3813 version_script='-M'
3814 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3815 ;;
3816 netbsd)
3817 disable symver
3818 oss_indev_extralibs="-lossaudio"
3819 oss_outdev_extralibs="-lossaudio"
3820 ;;
3821 openbsd|bitrig)
3822 disable symver
3823 SHFLAGS='-shared'
3824 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3825 SLIB_INSTALL_LINKS=
3826 oss_indev_extralibs="-lossaudio"
3827 oss_outdev_extralibs="-lossaudio"
3828 ;;
3829 dragonfly)
3830 disable symver
3831 ;;
3832 freebsd)
3833 ;;
3834 bsd/os)
3835 add_extralibs -lpoll -lgnugetopt
3836 ;;
3837 darwin)
3838 enabled ppc && add_asflags -force_cpusubtype_ALL
3839 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3840 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3841 add_ldflags -Wl,-dynamic,-search_paths_first
3842 SLIBSUF=".dylib"
3843 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3844 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3845 objformat="macho"
3846 enabled x86_64 && objformat="macho64"
3847 enabled_any pic shared ||
3848 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3849 check_header dispatch/dispatch.h &&
3850 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3851 ;;
3852 msys*)
3853 die "Native MSYS builds are discouraged, please use the MINGW environment."
3854 ;;
3855 mingw32*|mingw64*)
3856 if test $target_os = "mingw32ce"; then
3857 disable network
3858 else
3859 target_os=mingw32
3860 fi
3861 LIBTARGET=i386
3862 if enabled x86_64; then
3863 LIBTARGET="i386:x86-64"
3864 elif enabled arm; then
3865 LIBTARGET=arm-wince
3866 fi
3867 check_ldflags -Wl,--nxcompat
3868 check_ldflags -Wl,--dynamicbase
3869 shlibdir_default="$bindir_default"
3870 SLIBPREF=""
3871 SLIBSUF=".dll"
3872 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3873 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3874 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3875 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3876 SLIB_INSTALL_LINKS=
3877 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3878 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3879 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3880 objformat="win32"
3881 dlltool="${cross_prefix}dlltool"
3882 ranlib=:
3883 enable dos_paths
3884 ;;
3885 win32|win64)
3886 disable symver
3887 if enabled shared; then
3888 # Link to the import library instead of the normal static library
3889 # for shared libs.
3890 LD_LIB='%.lib'
3891 # Cannot build both shared and static libs with MSVC or icl.
3892 disable static
3893 fi
3894 shlibdir_default="$bindir_default"
3895 SLIBPREF=""
3896 SLIBSUF=".dll"
3897 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3898 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3899 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3900 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3901 SLIB_INSTALL_LINKS=
3902 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3903 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3904 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3905 objformat="win32"
3906 ranlib=:
3907 enable dos_paths
3908 ;;
3909 cygwin*)
3910 target_os=cygwin
3911 shlibdir_default="$bindir_default"
3912 SLIBPREF="cyg"
3913 SLIBSUF=".dll"
3914 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3915 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3916 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3917 SLIB_INSTALL_LINKS=
3918 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3919 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3920 objformat="win32"
3921 enable dos_paths
3922 ;;
3923 *-dos|freedos|opendos)
3924 network_extralibs="-lsocket"
3925 objformat="coff"
3926 enable dos_paths
3927 add_cppflags -U__STRICT_ANSI__
3928 ;;
3929 linux)
3930 enable dv1394
3931 enable section_data_rel_ro
3932 ;;
3933 irix*)
3934 target_os=irix
3935 ranlib="echo ignoring ranlib"
3936 ;;
3937 os/2*)
3938 ln_s="cp -f"
3939 objformat="aout"
3940 add_cppflags -D_GNU_SOURCE
3941 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3942 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3943 LIBSUF="_s.a"
3944 SLIBPREF=""
3945 SLIBSUF=".dll"
3946 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3947 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3948 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3949 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3950 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3951 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3952 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3953 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3954 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3955 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3956 enable dos_paths
3957 ;;
3958 gnu/kfreebsd)
3959 add_cppflags -D_BSD_SOURCE
3960 ;;
3961 gnu)
3962 ;;
3963 qnx)
3964 add_cppflags -D_QNX_SOURCE
3965 network_extralibs="-lsocket"
3966 ;;
3967 symbian)
3968 SLIBSUF=".dll"
3969 enable dos_paths
3970 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3971 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3972 add_ldflags -Wl,--target1-abs,--no-undefined \
3973 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3974 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3975 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3976 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3977 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3978 ;;
3979 osf1)
3980 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3981 ;;
3982 minix)
3983 ;;
3984 none)
3985 ;;
3986 *)
3987 die "Unknown OS '$target_os'."
3988 ;;
3989 esac
3990
3991 # determine libc flavour
3992
3993 probe_libc(){
3994 pfx=$1
3995 pfx_no_=${pfx%_}
3996 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3997 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3998 eval ${pfx}libc_type=uclibc
3999 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4000 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4001 eval ${pfx}libc_type=glibc
4002 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4003 # MinGW headers can be installed on Cygwin, so check for newlib first.
4004 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4005 eval ${pfx}libc_type=newlib
4006 add_${pfx}cppflags -U__STRICT_ANSI__
4007 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4008 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4009 eval ${pfx}libc_type=mingw64
4010 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4011 eval test \$${pfx_no_}cc_type = "gcc" &&
4012 add_${pfx}cppflags -D__printf__=__gnu_printf__
4013 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4014 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4015 eval ${pfx}libc_type=mingw32
4016 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4017 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4018 die "ERROR: MinGW32 runtime version must be >= 3.15."
4019 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4020 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4021 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4022 eval test \$${pfx_no_}cc_type = "gcc" &&
4023 add_${pfx}cppflags -D__printf__=__gnu_printf__
4024 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4025 eval ${pfx}libc_type=msvcrt
4026 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4027 if [ "$pfx" = host_ ]; then
4028 add_host_cppflags -Dsnprintf=_snprintf
4029 else
4030 add_compat strtod.o strtod=avpriv_strtod
4031 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4032 _snprintf=avpriv_snprintf \
4033 vsnprintf=avpriv_vsnprintf
4034 fi
4035 fi
4036 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4037 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4038 # 0x601 by default unless something else is set by the user.
4039 # This can easily lead to us detecting functions only present
4040 # in such new versions and producing binaries requiring windows 7.0.
4041 # Therefore explicitly set the default to XP unless the user has
4042 # set something else on the command line.
4043 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4044 # family. For these cases, configure is free to use any functions
4045 # found in the SDK headers by default. (Alternatively, we could force
4046 # _WIN32_WINNT to 0x0602 in that case.)
4047 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4048 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4049 #ifdef WINAPI_FAMILY
4050 #include <winapifamily.h>
4051 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4052 #error not desktop
4053 #endif
4054 #endif
4055 EOF
4056 if [ "$pfx" = "" ]; then
4057 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4058 fi
4059 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4060 eval ${pfx}libc_type=klibc
4061 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4062 eval ${pfx}libc_type=bionic
4063 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4064 eval ${pfx}libc_type=solaris
4065 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4066 else
4067 eval ${pfx}libc_type=default
4068 add_${pfx}cppflags -D_DEFAULT_SOURCE
4069 fi
4070 }
4071
4072 probe_libc
4073 test -n "$libc_type" && enable libc_$libc_type
4074 probe_libc host_
4075 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4076
4077 case $libc_type in
4078 bionic)
4079 add_compat strtod.o strtod=avpriv_strtod
4080 ;;
4081 esac
4082
4083 # hacks for compiler/libc/os combinations
4084
4085 if enabled_all tms470 libc_glibc; then
4086 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4087 add_cppflags -D__USER_LABEL_PREFIX__=
4088 add_cppflags -D__builtin_memset=memset
4089 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4090 add_cflags -pds=48 # incompatible redefinition of macro
4091 fi
4092
4093 if enabled_all ccc libc_glibc; then
4094 add_ldflags -Wl,-z,now # calls to libots crash without this
4095 fi
4096
4097 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4098 add_cppflags '-I\$(SRC_PATH)/compat/float'
4099
4100 esc(){
4101 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4102 }
4103
4104 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4105
4106 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4107
4108 set_default $PATHS_LIST
4109 set_default nm
4110
4111 # we need to build at least one lib type
4112 if ! enabled_any static shared; then
4113 cat <<EOF
4114 At least one library type must be built.
4115 Specify --enable-static to build the static libraries or --enable-shared to
4116 build the shared libraries as well. To only build the shared libraries specify
4117 --disable-static in addition to --enable-shared.
4118 EOF
4119 exit 1
4120 fi
4121
4122 disabled optimizations || check_cflags -fomit-frame-pointer
4123
4124 enable_weak_pic() {
4125 disabled pic && return
4126 enable pic
4127 add_cppflags -DPIC
4128 case "$target_os" in
4129 mingw*|cygwin*)
4130 ;;
4131 *)
4132 add_cflags -fPIC
4133 ;;
4134 esac
4135 add_asflags -fPIC
4136 }
4137
4138 enabled pic && enable_weak_pic
4139
4140 check_cc <<EOF || die "Symbol mangling check failed."
4141 int ff_extern;
4142 EOF
4143 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4144 extern_prefix=${sym%%ff_extern*}
4145
4146 check_cc <<EOF && enable_weak inline_asm
4147 void foo(void) { __asm__ volatile ("" ::); }
4148 EOF
4149
4150 _restrict=
4151 for restrict_keyword in restrict __restrict__ __restrict; do
4152 check_cc <<EOF && _restrict=$restrict_keyword && break
4153 void foo(char * $restrict_keyword p);
4154 EOF
4155 done
4156
4157 check_cc <<EOF && enable pragma_deprecated
4158 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4159 EOF
4160
4161 check_cc <<EOF && enable attribute_packed
4162 struct { int x; } __attribute__((packed)) x;
4163 EOF
4164
4165 check_cc <<EOF && enable attribute_may_alias
4166 union { int x; } __attribute__((may_alias)) x;
4167 EOF
4168
4169 check_cc <<EOF || die "endian test failed"
4170 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4171 EOF
4172 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4173
4174 check_gas() {
4175 log "check_gas using '$as' as AS"
4176 # :vararg is used on aarch64, arm and ppc altivec
4177 check_as <<EOF || return 1
4178 .macro m n, y:vararg=0
4179 \n: .int \y
4180 .endm
4181 m x
4182 EOF
4183 # .altmacro is only used in arm asm
4184 ! enabled arm || check_as <<EOF || return 1
4185 .altmacro
4186 EOF
4187 enable gnu_as
4188 return 0
4189 }
4190
4191 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4192 nogas=:
4193 enabled_any arm aarch64 && nogas=die
4194 enabled_all ppc altivec && nogas=warn
4195 as_noop=-v
4196
4197 case $as_type in
4198 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4199 gcc) gaspp_as_type=gas ;;
4200 *) gaspp_as_type=$as_type ;;
4201 esac
4202
4203 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4204
4205 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4206 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4207
4208 if ! check_gas ; then
4209 as=${gas:=$as}
4210 check_gas || \
4211 $nogas "GNU assembler not found, install/update gas-preprocessor"
4212 fi
4213
4214 check_as <<EOF && enable as_func
4215 .func test
4216 .endfunc
4217 EOF
4218 fi
4219
4220 check_inline_asm inline_asm_labels '"1:\n"'
4221
4222 if enabled aarch64; then
4223 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4224 # internal assembler in clang 3.3 does not support this instruction
4225 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4226 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4227
4228 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4229
4230 elif enabled alpha; then
4231
4232 check_cflags -mieee
4233
4234 elif enabled arm; then
4235
4236 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4237 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4238 enabled thumb && check_cflags -mthumb || check_cflags -marm
4239
4240 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4241 enable vfp_args
4242 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4243 enable vfp_args
4244 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4245 case "${cross_prefix:-$cc}" in
4246 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4247 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4248 __asm__ (".eabi_attribute 28, 1");
4249 int main(void) { return 0; }
4250 EOF
4251 esac
4252 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4253 fi
4254
4255 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4256 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4257 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4258 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4259 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4260 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4261
4262 [ $target_os = linux ] || [ $target_os = android ] ||
4263 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4264 $ARCH_EXT_LIST_ARM
4265
4266 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4267
4268 check_as <<EOF && enable as_dn_directive
4269 ra .dn d0.i16
4270 .unreq ra
4271 EOF
4272 check_as <<EOF && enable as_fpu_directive
4273 .fpu neon
4274 EOF
4275
4276 # llvm's integrated assembler supports .object_arch from llvm 3.5
4277 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4278 .object_arch armv4
4279 EOF
4280
4281 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4282
4283 elif enabled mips; then
4284
4285 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4286
4287 # make sure that only an instruction set is enabled
4288 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4289
4290 if enabled mips64; then
4291 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4292 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4293 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4294 else
4295 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4296 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4297 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4298 fi
4299
4300 elif enabled parisc; then
4301
4302 if enabled gcc; then
4303 case $($cc -dumpversion) in
4304 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4305 esac
4306 fi
4307
4308 elif enabled ppc; then
4309
4310 enable local_aligned_8 local_aligned_16 local_aligned_32
4311
4312 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4313 check_inline_asm ibm_asm '"add 0, 0, 0"'
4314 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4315 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4316
4317 # AltiVec flags: The FSF version of GCC differs from the Apple version
4318 if enabled altivec; then
4319 check_cflags -maltivec -mabi=altivec &&
4320 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4321 check_cflags -faltivec
4322
4323 # check if our compiler supports Motorola AltiVec C API
4324 check_cc <<EOF || disable altivec
4325 $inc_altivec_h
4326 int main(void) {
4327 vector signed int v1 = (vector signed int) { 0 };
4328 vector signed int v2 = (vector signed int) { 1 };
4329 v1 = vec_add(v1, v2);
4330 return 0;
4331 }
4332 EOF
4333
4334 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4335 fi
4336
4337 if enabled vsx; then
4338 check_cflags -mvsx &&
4339 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4340 fi
4341
4342 if enabled power8; then
4343 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4344 fi
4345
4346 elif enabled x86; then
4347
4348 check_builtin rdtsc intrin.h "__rdtsc()"
4349 check_builtin mm_empty mmintrin.h "_mm_empty()"
4350
4351 enable local_aligned_8 local_aligned_16 local_aligned_32
4352
4353 # check whether EBP is available on x86
4354 # As 'i' is stored on the stack, this program will crash
4355 # if the base pointer is used to access it because the
4356 # base pointer is cleared in the inline assembly code.
4357 check_exec_crash <<EOF && enable ebp_available
4358 volatile int i=0;
4359 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4360 return i;
4361 EOF
4362
4363 # check whether EBX is available on x86
4364 check_inline_asm ebx_available '""::"b"(0)' &&
4365 check_inline_asm ebx_available '"":::"%ebx"'
4366
4367 # check whether xmm clobbers are supported
4368 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4369
4370 # check whether binutils is new enough to compile SSSE3/MMXEXT
4371 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4372 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4373
4374 if ! disabled_any asm mmx yasm; then
4375 if check_cmd $yasmexe --version; then