build: Add missing audio_frame_queue dependency for libwavpack encoder
[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 mpegaudioheader
1728 mpegvideo
1729 mpegvideoenc
1730 mss34dsp
1731 pixblockdsp
1732 qpeldsp
1733 qsv
1734 qsvdec
1735 qsvenc
1736 rangecoder
1737 riffdec
1738 riffenc
1739 rtpdec
1740 rtpenc_chain
1741 rv34dsp
1742 sinewin
1743 snappy
1744 srtp
1745 startcode
1746 texturedsp
1747 texturedspenc
1748 tpeldsp
1749 vaapi_encode
1750 vc1dsp
1751 videodsp
1752 vp3dsp
1753 vp56dsp
1754 vp8dsp
1755 wma_freqs
1756 wmv2dsp
1757 "
1758
1759 CMDLINE_SELECT="
1760 $ARCH_EXT_LIST
1761 $CONFIG_LIST
1762 $HAVE_LIST_CMDLINE
1763 $THREADS_LIST
1764 asm
1765 cross_compile
1766 debug
1767 extra_warnings
1768 logging
1769 lto
1770 optimizations
1771 rpath
1772 "
1773
1774 PATHS_LIST="
1775 bindir
1776 datadir
1777 docdir
1778 incdir
1779 libdir
1780 mandir
1781 prefix
1782 shlibdir
1783 "
1784
1785 CMDLINE_SET="
1786 $PATHS_LIST
1787 ar
1788 arch
1789 as
1790 cc
1791 objcc
1792 cpu
1793 cross_prefix
1794 custom_allocator
1795 dep_cc
1796 env
1797 extra_version
1798 host_cc
1799 host_cflags
1800 host_ld
1801 host_ldflags
1802 host_libs
1803 host_os
1804 ld
1805 logfile
1806 malloc_prefix
1807 nm
1808 optflags
1809 pkg_config
1810 pkg_config_flags
1811 random_seed
1812 samples
1813 sysinclude
1814 sysroot
1815 target_exec
1816 target_os
1817 target_path
1818 target_samples
1819 toolchain
1820 "
1821
1822 CMDLINE_APPEND="
1823 extra_cflags
1824 extra_objcflags
1825 host_cppflags
1826 "
1827
1828 # code dependency declarations
1829
1830 # architecture extensions
1831
1832 armv5te_deps="arm"
1833 armv6_deps="arm"
1834 armv6t2_deps="arm"
1835 armv8_deps="aarch64"
1836 neon_deps_any="aarch64 arm"
1837 intrinsics_neon_deps="neon"
1838 vfp_deps_any="aarch64 arm"
1839 vfpv3_deps="vfp"
1840
1841 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1842
1843 altivec_deps="ppc"
1844 ppc4xx_deps="ppc"
1845 vsx_deps="altivec"
1846 power8_deps="vsx"
1847
1848 cpunop_deps="i686"
1849 x86_64_select="i686"
1850 x86_64_suggest="fast_cmov"
1851
1852 amd3dnow_deps="mmx"
1853 amd3dnowext_deps="amd3dnow"
1854 i686_deps="x86"
1855 mmx_deps="x86"
1856 mmxext_deps="mmx"
1857 sse_deps="mmxext"
1858 sse2_deps="sse"
1859 sse3_deps="sse2"
1860 ssse3_deps="sse3"
1861 sse4_deps="ssse3"
1862 sse42_deps="sse4"
1863 avx_deps="sse42"
1864 xop_deps="avx"
1865 fma3_deps="avx"
1866 fma4_deps="avx"
1867 avx2_deps="avx"
1868
1869 mmx_external_deps="yasm"
1870 mmx_inline_deps="inline_asm"
1871 mmx_suggest="mmx_external mmx_inline"
1872
1873 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1874 eval dep=\$${ext}_deps
1875 eval ${ext}_external_deps='"${dep}_external"'
1876 eval ${ext}_inline_deps='"${dep}_inline"'
1877 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1878 done
1879
1880 aligned_stack_if_any="aarch64 ppc x86"
1881 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1882 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1883 fast_unaligned_if_any="aarch64 ppc x86"
1884 simd_align_16_if_any="altivec neon sse"
1885 simd_align_32_if_any="avx"
1886
1887 # system capabilities
1888 symver_if_any="symver_asm_label symver_gnu_asm"
1889 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1890
1891 # threading support
1892 atomics_gcc_if="sync_val_compare_and_swap"
1893 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1894 atomics_win32_if="MemoryBarrier"
1895 atomics_native_if_any="$ATOMICS_LIST"
1896 w32threads_deps="atomics_native"
1897 threads_if_any="$THREADS_LIST"
1898
1899 # subsystems
1900 dct_select="rdft"
1901 dirac_parse_select="golomb"
1902 error_resilience_select="me_cmp"
1903 faandct_deps="faan fdctdsp"
1904 faanidct_deps="faan idctdsp"
1905 h264dsp_select="startcode"
1906 intrax8_select="blockdsp idctdsp"
1907 mdct_select="fft"
1908 rdft_select="fft"
1909 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1910 mpeg_er_select="error_resilience"
1911 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1912 mpegaudiodsp_select="dct"
1913 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1914 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1915 vc1dsp_select="h264chroma qpeldsp startcode"
1916
1917 # decoders / encoders
1918 aac_decoder_select="imdct15 mdct sinewin"
1919 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1920 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1921 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1922 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1924 adpcm_g722_decoder_select="g722dsp"
1925 adpcm_g722_encoder_select="g722dsp"
1926 aic_decoder_select="golomb idctdsp"
1927 alac_encoder_select="lpc"
1928 als_decoder_select="bswapdsp"
1929 amrnb_decoder_select="lsp"
1930 amrwb_decoder_select="lsp"
1931 amv_decoder_select="sp5x_decoder"
1932 ape_decoder_select="bswapdsp"
1933 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1936 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1937 atrac1_decoder_select="mdct sinewin"
1938 atrac3_decoder_select="mdct"
1939 atrac3p_decoder_select="mdct sinewin"
1940 bink_decoder_select="blockdsp hpeldsp"
1941 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1942 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1943 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1944 cllc_decoder_select="bswapdsp"
1945 comfortnoise_encoder_select="lpc"
1946 cook_decoder_select="audiodsp mdct sinewin"
1947 cscd_decoder_select="lzo"
1948 cscd_decoder_suggest="zlib"
1949 dca_decoder_select="fmtconvert mdct"
1950 dds_decoder_select="texturedsp"
1951 dnxhd_decoder_select="blockdsp idctdsp"
1952 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1953 dvvideo_decoder_select="dvprofile idctdsp"
1954 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1955 dxa_decoder_deps="zlib"
1956 dxv_decoder_select="lzf texturedsp"
1957 eac3_decoder_select="ac3_decoder"
1958 eac3_encoder_select="ac3_encoder"
1959 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1960 eatgq_decoder_select="aandcttables idctdsp"
1961 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1962 exr_decoder_deps="zlib"
1963 ffv1_decoder_select="golomb rangecoder"
1964 ffv1_encoder_select="rangecoder"
1965 ffvhuff_decoder_select="huffyuv_decoder"
1966 ffvhuff_encoder_select="huffyuv_encoder"
1967 fic_decoder_select="golomb"
1968 flac_decoder_select="flacdsp golomb"
1969 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1970 flashsv_decoder_deps="zlib"
1971 flashsv_encoder_deps="zlib"
1972 flashsv2_decoder_deps="zlib"
1973 flv_decoder_select="h263_decoder"
1974 flv_encoder_select="h263_encoder"
1975 fourxm_decoder_select="blockdsp bswapdsp"
1976 fraps_decoder_select="bswapdsp huffman"
1977 g2m_decoder_deps="zlib"
1978 g2m_decoder_select="blockdsp idctdsp jpegtables"
1979 h261_decoder_select="mpeg_er mpegvideo"
1980 h261_encoder_select="aandcttables mpegvideoenc"
1981 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1982 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1983 h263i_decoder_select="h263_decoder"
1984 h263p_encoder_select="h263_encoder"
1985 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1986 h264_decoder_suggest="error_resilience"
1987 hap_decoder_select="snappy texturedsp"
1988 hap_encoder_deps="libsnappy"
1989 hap_encoder_select="texturedspenc"
1990 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1991 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1992 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1993 iac_decoder_select="imc_decoder"
1994 imc_decoder_select="bswapdsp fft mdct sinewin"
1995 indeo3_decoder_select="hpeldsp"
1996 indeo4_decoder_select="ividsp"
1997 indeo5_decoder_select="ividsp"
1998 interplay_video_decoder_select="hpeldsp"
1999 jpegls_decoder_select="golomb mjpeg_decoder"
2000 jpegls_encoder_select="golomb"
2001 jv_decoder_select="blockdsp"
2002 lagarith_decoder_select="huffyuvdsp"
2003 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2004 loco_decoder_select="golomb"
2005 magicyuv_decoder_select="huffyuvdsp"
2006 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select="lsp mdct sinewin"
2008 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select="mjpeg_decoder"
2012 mlp_decoder_select="mlp_parser"
2013 motionpixels_decoder_select="bswapdsp"
2014 mp1_decoder_select="mpegaudio"
2015 mp1float_decoder_select="mpegaudio"
2016 mp2_decoder_select="mpegaudio"
2017 mp2float_decoder_select="mpegaudio"
2018 mp3_decoder_select="mpegaudio"
2019 mp3adu_decoder_select="mpegaudio"
2020 mp3adufloat_decoder_select="mpegaudio"
2021 mp3float_decoder_select="mpegaudio"
2022 mp3on4_decoder_select="mpegaudio"
2023 mp3on4float_decoder_select="mpegaudio"
2024 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2028 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2033 mpeg4_encoder_select="h263_encoder"
2034 msa1_decoder_select="mss34dsp"
2035 msmpeg4v1_decoder_select="h263_decoder"
2036 msmpeg4v2_decoder_select="h263_decoder"
2037 msmpeg4v2_encoder_select="h263_encoder"
2038 msmpeg4v3_decoder_select="h263_decoder"
2039 msmpeg4v3_encoder_select="h263_encoder"
2040 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2041 mts2_decoder_select="mss34dsp"
2042 mxpeg_decoder_select="mjpeg_decoder"
2043 nellymoser_decoder_select="mdct sinewin"
2044 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2045 nuv_decoder_select="idctdsp lzo"
2046 on2avc_decoder_select="mdct"
2047 opus_decoder_deps="avresample"
2048 opus_decoder_select="imdct15"
2049 png_decoder_deps="zlib"
2050 png_encoder_deps="zlib"
2051 png_encoder_select="huffyuvencdsp"
2052 prores_decoder_select="idctdsp"
2053 prores_encoder_select="fdctdsp"
2054 qcelp_decoder_select="lsp"
2055 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2056 ra_144_encoder_select="audio_frame_queue lpc"
2057 ralf_decoder_select="golomb"
2058 rscc_decoder_deps="zlib"
2059 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2060 rv10_encoder_select="h263_encoder"
2061 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv20_encoder_select="h263_encoder"
2063 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2065 screenpresso_decoder_deps="zlib"
2066 shorten_decoder_select="golomb"
2067 sipr_decoder_select="lsp"
2068 sp5x_decoder_select="mjpeg_decoder"
2069 svq1_decoder_select="hpeldsp"
2070 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2071 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2072 svq3_decoder_suggest="zlib"
2073 tak_decoder_select="audiodsp"
2074 tdsc_decoder_deps="zlib"
2075 tdsc_decoder_select="mjpeg_decoder"
2076 theora_decoder_select="vp3_decoder"
2077 thp_decoder_select="mjpeg_decoder"
2078 tiff_decoder_suggest="zlib"
2079 tiff_encoder_suggest="zlib"
2080 truehd_decoder_select="mlp_decoder"
2081 truemotion2_decoder_select="bswapdsp"
2082 truespeech_decoder_select="bswapdsp"
2083 tscc_decoder_deps="zlib"
2084 txd_decoder_select="texturedsp"
2085 twinvq_decoder_select="mdct lsp sinewin"
2086 utvideo_decoder_select="bswapdsp"
2087 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2088 vble_decoder_select="huffyuvdsp"
2089 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2090 vc1image_decoder_select="vc1_decoder"
2091 vorbis_decoder_select="mdct"
2092 vorbis_encoder_select="mdct"
2093 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2094 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2095 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2096 vp6a_decoder_select="vp6_decoder"
2097 vp6f_decoder_select="vp6_decoder"
2098 vp7_decoder_select="h264pred videodsp vp8dsp"
2099 vp8_decoder_select="h264pred videodsp vp8dsp"
2100 vp9_decoder_select="videodsp"
2101 webp_decoder_select="vp8_decoder"
2102 wmapro_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_decoder_select="mdct sinewin wma_freqs"
2104 wmav1_encoder_select="mdct sinewin wma_freqs"
2105 wmav2_decoder_select="mdct sinewin wma_freqs"
2106 wmav2_encoder_select="mdct sinewin wma_freqs"
2107 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2108 wmv1_decoder_select="h263_decoder"
2109 wmv1_encoder_select="h263_encoder"
2110 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2111 wmv2_encoder_select="h263_encoder wmv2dsp"
2112 wmv3_decoder_select="vc1_decoder"
2113 wmv3image_decoder_select="wmv3_decoder"
2114 zerocodec_decoder_deps="zlib"
2115 zlib_decoder_deps="zlib"
2116 zlib_encoder_deps="zlib"
2117 zmbv_decoder_deps="zlib"
2118 zmbv_encoder_deps="zlib"
2119
2120 # hardware accelerators
2121 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2122 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2123 vaapi_deps="va_va_h"
2124 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2125 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2126 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2127
2128 h263_vaapi_hwaccel_deps="vaapi"
2129 h263_vaapi_hwaccel_select="h263_decoder"
2130 h264_d3d11va_hwaccel_deps="d3d11va"
2131 h264_d3d11va_hwaccel_select="h264_decoder"
2132 h264_dxva2_hwaccel_deps="dxva2"
2133 h264_dxva2_hwaccel_select="h264_decoder"
2134 h264_mmal_hwaccel_deps="mmal"
2135 h264_qsv_hwaccel_deps="libmfx"
2136 h264_vaapi_hwaccel_deps="vaapi"
2137 h264_vaapi_hwaccel_select="h264_decoder"
2138 h264_vda_hwaccel_deps="vda"
2139 h264_vda_hwaccel_select="h264_decoder"
2140 h264_vda_old_hwaccel_deps="vda"
2141 h264_vda_old_hwaccel_select="h264_decoder"
2142 h264_vdpau_hwaccel_deps="vdpau"
2143 h264_vdpau_hwaccel_select="h264_decoder"
2144 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2145 hevc_d3d11va_hwaccel_select="hevc_decoder"
2146 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2147 hevc_dxva2_hwaccel_select="hevc_decoder"
2148 hevc_qsv_hwaccel_deps="libmfx"
2149 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2150 hevc_vdpau_hwaccel_select="hevc_decoder"
2151 mpeg1_vdpau_hwaccel_deps="vdpau"
2152 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2153 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2154 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2155 mpeg2_dxva2_hwaccel_deps="dxva2"
2156 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2157 mpeg2_mmal_hwaccel_deps="mmal"
2158 mpeg2_qsv_hwaccel_deps="libmfx"
2159 mpeg2_vaapi_hwaccel_deps="vaapi"
2160 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_vdpau_hwaccel_deps="vdpau"
2162 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2163 mpeg4_vaapi_hwaccel_deps="vaapi"
2164 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2165 mpeg4_vdpau_hwaccel_deps="vdpau"
2166 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2167 vc1_d3d11va_hwaccel_deps="d3d11va"
2168 vc1_d3d11va_hwaccel_select="vc1_decoder"
2169 vc1_dxva2_hwaccel_deps="dxva2"
2170 vc1_dxva2_hwaccel_select="vc1_decoder"
2171 vc1_mmal_hwaccel_deps="mmal"
2172 vc1_qsv_hwaccel_deps="libmfx"
2173 vc1_vaapi_hwaccel_deps="vaapi"
2174 vc1_vaapi_hwaccel_select="vc1_decoder"
2175 vc1_vdpau_hwaccel_deps="vdpau"
2176 vc1_vdpau_hwaccel_select="vc1_decoder"
2177 vp8_qsv_hwaccel_deps="libmfx"
2178 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2179 vp8_vaapi_hwaccel_select="vp8_decoder"
2180 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2181 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2182 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2183 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2184
2185 # hardware-accelerated codecs
2186 nvenc_deps_any="dlopen LoadLibrary"
2187 nvenc_extralibs='$ldl'
2188 omx_deps="dlopen pthreads"
2189 omx_extralibs='$ldl'
2190 qsvdec_select="qsv"
2191 qsvenc_select="qsv"
2192 vaapi_encode_deps="vaapi"
2193
2194 hwupload_cuda_filter_deps="cuda"
2195 scale_npp_filter_deps="cuda libnpp"
2196
2197 h264_mmal_decoder_deps="mmal"
2198 h264_nvenc_encoder_deps="nvenc"
2199 h264_omx_encoder_deps="omx"
2200 h264_qsv_decoder_deps="libmfx"
2201 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2202 h264_qsv_encoder_deps="libmfx"
2203 h264_qsv_encoder_select="qsvenc"
2204 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2205 h264_vaapi_encoder_select="vaapi_encode golomb"
2206 hevc_nvenc_encoder_deps="nvenc"
2207 hevc_qsv_decoder_deps="libmfx"
2208 hevc_qsv_encoder_deps="libmfx"
2209 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2210 hevc_qsv_encoder_select="qsvenc"
2211 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2212 hevc_vaapi_encoder_select="vaapi_encode golomb"
2213 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2214 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2215 mpeg2_mmal_decoder_deps="mmal"
2216 mpeg2_qsv_decoder_deps="libmfx"
2217 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2218 mpeg2_qsv_encoder_deps="libmfx"
2219 mpeg2_qsv_encoder_select="qsvenc"
2220 mpeg4_omx_encoder_deps="omx"
2221 vc1_mmal_decoder_deps="mmal"
2222 vc1_qsv_decoder_deps="libmfx"
2223 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2224 vp8_qsv_decoder_deps="libmfx"
2225 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2226
2227 nvenc_h264_encoder_deps="nvenc"
2228 nvenc_hevc_encoder_deps="nvenc"
2229
2230 # parsers
2231 h264_parser_select="golomb h264dsp h264parse"
2232 hevc_parser_select="golomb"
2233 mpegaudio_parser_select="mpegaudioheader"
2234 mpegvideo_parser_select="mpegvideo"
2235 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2236 vc1_parser_select="vc1dsp"
2237
2238 # bitstream_filters
2239 mjpeg2jpeg_bsf_select="jpegtables"
2240
2241 # external libraries
2242 libdcadec_decoder_deps="libdcadec"
2243 libfaac_encoder_deps="libfaac"
2244 libfaac_encoder_select="audio_frame_queue"
2245 libfdk_aac_decoder_deps="libfdk_aac"
2246 libfdk_aac_encoder_deps="libfdk_aac"
2247 libfdk_aac_encoder_select="audio_frame_queue"
2248 libgsm_decoder_deps="libgsm"
2249 libgsm_encoder_deps="libgsm"
2250 libgsm_ms_decoder_deps="libgsm"
2251 libgsm_ms_encoder_deps="libgsm"
2252 libilbc_decoder_deps="libilbc"
2253 libilbc_encoder_deps="libilbc"
2254 libkvazaar_encoder_deps="libkvazaar"
2255 libmp3lame_encoder_deps="libmp3lame"
2256 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2257 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2258 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2259 libopencore_amrnb_encoder_select="audio_frame_queue"
2260 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2261 libopenh264_decoder_deps="libopenh264"
2262 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2263 libopenh264_encoder_deps="libopenh264"
2264 libopenjpeg_decoder_deps="libopenjpeg"
2265 libopenjpeg_encoder_deps="libopenjpeg"
2266 libopus_decoder_deps="libopus"
2267 libopus_encoder_deps="libopus"
2268 libopus_encoder_select="audio_frame_queue"
2269 libschroedinger_decoder_deps="libschroedinger"
2270 libschroedinger_encoder_deps="libschroedinger"
2271 libspeex_decoder_deps="libspeex"
2272 libspeex_encoder_deps="libspeex"
2273 libspeex_encoder_select="audio_frame_queue"
2274 libtheora_encoder_deps="libtheora"
2275 libtwolame_encoder_deps="libtwolame"
2276 libvo_aacenc_encoder_deps="libvo_aacenc"
2277 libvo_aacenc_encoder_select="audio_frame_queue"
2278 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2279 libvorbis_encoder_deps="libvorbis"
2280 libvorbis_encoder_select="audio_frame_queue"
2281 libvpx_vp8_decoder_deps="libvpx"
2282 libvpx_vp8_encoder_deps="libvpx"
2283 libvpx_vp9_decoder_deps="libvpx"
2284 libvpx_vp9_encoder_deps="libvpx"
2285 libwavpack_encoder_deps="libwavpack"
2286 libwavpack_encoder_select="audio_frame_queue"
2287 libwebp_encoder_deps="libwebp"
2288 libx262_encoder_deps="libx262"
2289 libx264_encoder_deps="libx264"
2290 libx265_encoder_deps="libx265"
2291 libxavs_encoder_deps="libxavs"
2292 libxvid_encoder_deps="libxvid mkstemp"
2293
2294 # demuxers / muxers
2295 ac3_demuxer_select="ac3_parser"
2296 asf_demuxer_select="riffdec"
2297 asf_muxer_select="riffenc"
2298 asf_stream_muxer_select="asf_muxer"
2299 avi_demuxer_select="iso_media riffdec"
2300 avi_muxer_select="riffenc"
2301 avisynth_demuxer_deps="avisynth"
2302 avisynth_demuxer_select="riffdec"
2303 caf_demuxer_select="iso_media riffdec"
2304 dash_muxer_select="mp4_muxer"
2305 dirac_demuxer_select="dirac_parser"
2306 dv_demuxer_select="dvprofile"
2307 dv_muxer_select="dvprofile"
2308 dxa_demuxer_select="riffdec"
2309 eac3_demuxer_select="ac3_parser"
2310 f4v_muxer_select="mov_muxer"
2311 flac_demuxer_select="flac_parser"
2312 hds_muxer_select="flv_muxer"
2313 hls_muxer_select="mpegts_muxer"
2314 ipod_muxer_select="mov_muxer"
2315 ismv_muxer_select="mov_muxer"
2316 matroska_audio_muxer_select="matroska_muxer"
2317 matroska_demuxer_select="iso_media riffdec"
2318 matroska_demuxer_suggest="bzlib lzo zlib"
2319 matroska_muxer_select="iso_media riffenc"
2320 mmf_muxer_select="riffenc"
2321 mov_demuxer_select="iso_media riffdec"
2322 mov_demuxer_suggest="zlib"
2323 mov_muxer_select="iso_media riffenc rtpenc_chain"
2324 mp3_demuxer_select="mpegaudio_parser"
2325 mp3_muxer_select="mpegaudioheader"
2326 mp4_muxer_select="mov_muxer"
2327 mpegts_demuxer_select="iso_media"
2328 mpegts_muxer_select="adts_muxer latm_muxer"
2329 mpegtsraw_demuxer_select="mpegts_demuxer"
2330 mxf_d10_muxer_select="mxf_muxer"
2331 nut_muxer_select="riffenc"
2332 nuv_demuxer_select="riffdec"
2333 oga_muxer_select="ogg_muxer"
2334 ogg_demuxer_select="dirac_parse"
2335 opus_muxer_select="ogg_muxer"
2336 psp_muxer_select="mov_muxer"
2337 rtp_demuxer_select="sdp_demuxer"
2338 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2339 rtsp_demuxer_select="http_protocol rtpdec"
2340 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2341 sap_demuxer_select="sdp_demuxer"
2342 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2343 sdp_demuxer_select="rtpdec"
2344 smoothstreaming_muxer_select="ismv_muxer"
2345 spdif_muxer_select="aac_parser"
2346 spx_muxer_select="ogg_muxer"
2347 swf_demuxer_suggest="zlib"
2348 tak_demuxer_select="tak_parser"
2349 tg2_muxer_select="mov_muxer"
2350 tgp_muxer_select="mov_muxer"
2351 w64_demuxer_select="wav_demuxer"
2352 wav_demuxer_select="riffdec"
2353 wav_muxer_select="riffenc"
2354 webm_muxer_select="iso_media riffenc"
2355 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2356 wtv_demuxer_select="mpegts_demuxer riffdec"
2357 xmv_demuxer_select="riffdec"
2358 xwma_demuxer_select="riffdec"
2359
2360 # indevs / outdevs
2361 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2362 alsa_outdev_deps="alsa_asoundlib_h"
2363 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2364 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2365 dv1394_indev_deps="dv1394"
2366 dv1394_indev_select="dv_demuxer"
2367 fbdev_indev_deps="linux_fb_h"
2368 jack_indev_deps="jack_jack_h"
2369 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2370 libcdio_indev_deps="libcdio"
2371 libdc1394_indev_deps="libdc1394"
2372 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2373 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2374 pulse_indev_deps="libpulse"
2375 sndio_indev_deps="sndio_h"
2376 sndio_outdev_deps="sndio_h"
2377 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2378 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2379 vfwcap_indev_extralibs="-lavicap32"
2380 xcbgrab_indev_deps="libxcb"
2381
2382 # protocols
2383 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2384 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2385 ffrtmpcrypt_protocol_select="tcp_protocol"
2386 ffrtmphttp_protocol_deps="!librtmp_protocol"
2387 ffrtmphttp_protocol_select="http_protocol"
2388 gopher_protocol_select="network"
2389 http_protocol_select="tcp_protocol"
2390 httpproxy_protocol_select="tcp_protocol"
2391 https_protocol_select="tls_protocol"
2392 icecast_protocol_select="http_protocol"
2393 librtmp_protocol_deps="librtmp"
2394 librtmpe_protocol_deps="librtmp"
2395 librtmps_protocol_deps="librtmp"
2396 librtmpt_protocol_deps="librtmp"
2397 librtmpte_protocol_deps="librtmp"
2398 mmsh_protocol_select="http_protocol"
2399 mmst_protocol_select="network"
2400 rtmp_protocol_deps="!librtmp_protocol"
2401 rtmp_protocol_select="tcp_protocol"
2402 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2403 rtmps_protocol_deps="!librtmp_protocol"
2404 rtmps_protocol_select="tls_protocol"
2405 rtmpt_protocol_select="ffrtmphttp_protocol"
2406 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2407 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2408 rtp_protocol_select="udp_protocol"
2409 sctp_protocol_deps="struct_sctp_event_subscribe"
2410 sctp_protocol_select="network"
2411 srtp_protocol_select="rtp_protocol srtp"
2412 tcp_protocol_select="network"
2413 tls_gnutls_protocol_deps="gnutls"
2414 tls_gnutls_protocol_select="tcp_protocol"
2415 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2416 tls_openssl_protocol_select="tcp_protocol"
2417 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2418 udp_protocol_select="network"
2419 unix_protocol_deps="sys_un_h"
2420 unix_protocol_select="network"
2421
2422 # filters
2423 asyncts_filter_deps="avresample"
2424 blackframe_filter_deps="gpl"
2425 boxblur_filter_deps="gpl"
2426 bs2b_filter_deps="libbs2b"
2427 cropdetect_filter_deps="gpl"
2428 deinterlace_qsv_filter_deps="libmfx"
2429 delogo_filter_deps="gpl"
2430 drawtext_filter_deps="libfreetype"
2431 frei0r_filter_deps="frei0r dlopen"
2432 frei0r_filter_extralibs='$ldl'
2433 frei0r_src_filter_deps="frei0r dlopen"
2434 frei0r_src_filter_extralibs='$ldl'
2435 hdcd_filter_deps="libhdcd"
2436 hqdn3d_filter_deps="gpl"
2437 interlace_filter_deps="gpl"
2438 movie_filter_deps="avcodec avformat"
2439 ocv_filter_deps="libopencv"
2440 resample_filter_deps="avresample"
2441 scale_filter_deps="swscale"
2442 scale_qsv_filter_deps="libmfx"
2443 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2444
2445 # examples
2446 decode_audio_example_deps="avcodec avutil"
2447 decode_video_example_deps="avcodec avutil"
2448 encode_audio_example_deps="avcodec avutil"
2449 encode_video_example_deps="avcodec avutil"
2450 filter_audio_example_deps="avfilter avutil"
2451 metadata_example_deps="avformat avutil"
2452 output_example_deps="avcodec avformat avresample avutil swscale"
2453 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2454 transcode_aac_example_deps="avcodec avformat avresample"
2455
2456 # libraries, in linking order
2457 avcodec_deps="avutil"
2458 avdevice_deps="avformat avcodec avutil"
2459 avfilter_deps="avutil"
2460 avformat_deps="avcodec avutil"
2461 avresample_deps="avutil"
2462 swscale_deps="avutil"
2463
2464 # programs
2465 avconv_deps="avcodec avfilter avformat avresample swscale"
2466 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2467 fps_filter null_filter resample_filter scale_filter
2468 trim_filter"
2469 avplay_deps="avcodec avfilter avformat avresample sdl"
2470 avplay_libs='$sdl_libs'
2471 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2472 avprobe_deps="avcodec avformat"
2473
2474 # documentation
2475 pod2man_deps="doc"
2476 texi2html_deps="doc"
2477
2478 # default parameters
2479
2480 logfile="config.log"
2481
2482 # installation paths
2483 prefix_default="/usr/local"
2484 bindir_default='${prefix}/bin'
2485 datadir_default='${prefix}/share/avconv'
2486 docdir_default='${prefix}/share/doc/libav'
2487 incdir_default='${prefix}/include'
2488 libdir_default='${prefix}/lib'
2489 mandir_default='${prefix}/share/man'
2490 shlibdir_default="$libdir_default"
2491
2492 # toolchain
2493 ar_default="ar"
2494 cc_default="gcc"
2495 host_cc_default="gcc"
2496 ln_s="ln -s -f"
2497 nm_default="nm -g"
2498 objformat="elf"
2499 pkg_config_default=pkg-config
2500 ranlib="ranlib"
2501 strip="strip"
2502 version_script='--version-script'
2503 yasmexe="yasm"
2504
2505 # machine
2506 arch_default=$(uname -m)
2507 cpu="generic"
2508 intrinsics="none"
2509
2510 # OS
2511 target_os_default=$(tolower $(uname -s))
2512 host_os=$target_os_default
2513
2514 # configurable options
2515 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2516
2517 enable asm
2518 enable debug
2519 enable doc
2520 enable faan faandct faanidct
2521 enable optimizations
2522 enable safe_bitstream_reader
2523 enable static
2524 enable swscale_alpha
2525 enable valgrind_backtrace
2526
2527 # By default, enable only those hwaccels that have no external dependencies.
2528 enable d3d11va dxva2 vda vdpau
2529
2530 # build settings
2531 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2532 LIBPREF="lib"
2533 LIBSUF=".a"
2534 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2535 SLIBPREF="lib"
2536 SLIBSUF=".so"
2537 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2538 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2539 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2540 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2541 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2542 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2543 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2544
2545 asflags_filter=echo
2546 cflags_filter=echo
2547 ldflags_filter=echo
2548
2549 AS_C='-c'
2550 AS_O='-o $@'
2551 CC_C='-c'
2552 CC_E='-E -o $@'
2553 CC_O='-o $@'
2554 OBJCC_C='-c'
2555 OBJCC_E='-E -o $@'
2556 OBJCC_O='-o $@'
2557 LD_O='-o $@'
2558 LD_LIB='-l%'
2559 LD_PATH='-L'
2560 HOSTCC_C='-c'
2561 HOSTCC_E='-E -o $@'
2562 HOSTCC_O='-o $@'
2563 HOSTLD_O='-o $@'
2564
2565 host_libs='-lm'
2566 host_cflags_filter=echo
2567 host_ldflags_filter=echo
2568
2569 target_path='$(CURDIR)'
2570
2571 # since the object filename is not given with the -MM flag, the compiler
2572 # is only able to print the basename, and we must add the path ourselves
2573 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2574 DEPFLAGS='-MM'
2575
2576 # find source path
2577 if test -f configure; then
2578 source_path=.
2579 else
2580 source_path=$(cd $(dirname "$0"); pwd)
2581 echo "$source_path" | grep -q '[[:blank:]]' &&
2582 die "Out of tree builds are impossible with whitespace in source path."
2583 test -e "$source_path/config.h" &&
2584 die "Out of tree builds are impossible with config.h in source dir."
2585 fi
2586
2587 for v in "$@"; do
2588 r=${v#*=}
2589 l=${v%"$r"}
2590 r=$(sh_quote "$r")
2591 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2592 done
2593
2594 find_things(){
2595 thing=$1
2596 pattern=$2
2597 file=$source_path/$3
2598 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2599 }
2600
2601 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2602 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2603 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2604 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2605 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2606 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2607 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2608 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2609 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2610
2611 find_things_extern(){
2612 thing=$1
2613 pattern=$2
2614 file=$source_path/$3
2615 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2616 }
2617
2618 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2619 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2620
2621 ALL_COMPONENTS="
2622 $BSF_LIST
2623 $DECODER_LIST
2624 $DEMUXER_LIST
2625 $ENCODER_LIST
2626 $FILTER_LIST
2627 $HWACCEL_LIST
2628 $INDEV_LIST
2629 $MUXER_LIST
2630 $OUTDEV_LIST
2631 $PARSER_LIST
2632 $PROTOCOL_LIST
2633 "
2634
2635 for n in $COMPONENT_LIST; do
2636 v=$(toupper ${n%s})_LIST
2637 eval enable \$$v
2638 eval ${n}_if_any="\$$v"
2639 done
2640
2641 enable $ARCH_EXT_LIST
2642
2643 die_unknown(){
2644 echo "Unknown option \"$1\"."
2645 echo "See $0 --help for available options."
2646 exit 1
2647 }
2648
2649 print_3_columns() {
2650 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2651 }
2652
2653 show_list() {
2654 suffix=_$1
2655 shift
2656 echo $* | sed s/$suffix//g | print_3_columns
2657 exit 0
2658 }
2659
2660 rand_list(){
2661 IFS=', '
2662 set -- $*
2663 unset IFS
2664 for thing; do
2665 comp=${thing%:*}
2666 prob=${thing#$comp}
2667 prob=${prob#:}
2668 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2669 echo "prob ${prob:-0.5}"
2670 printf '%s\n' $comp
2671 done
2672 }
2673
2674 do_random(){
2675 action=$1
2676 shift
2677 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2678 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2679 }
2680
2681 for opt do
2682 optval="${opt#*=}"
2683 case "$opt" in
2684 --extra-ldflags=*)
2685 add_ldflags $optval
2686 ;;
2687 --extra-ldexeflags=*)
2688 add_ldexeflags $optval
2689 ;;
2690 --extra-libs=*)
2691 add_extralibs $optval
2692 ;;
2693 --disable-devices)
2694 disable $INDEV_LIST $OUTDEV_LIST
2695 ;;
2696 --enable-debug=*)
2697 debuglevel="$optval"
2698 ;;
2699 --disable-programs)
2700 disable $PROGRAM_LIST
2701 ;;
2702 --disable-everything)
2703 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2704 ;;
2705 --disable-all)
2706 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2707 disable $LIBRARY_LIST $PROGRAM_LIST doc
2708 ;;
2709 --enable-random|--disable-random)
2710 action=${opt%%-random}
2711 do_random ${action#--} $COMPONENT_LIST
2712 ;;
2713 --enable-random=*|--disable-random=*)
2714 action=${opt%%-random=*}
2715 do_random ${action#--} $optval
2716 ;;
2717 --enable-*=*|--disable-*=*)
2718 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2719 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2720 eval list=\$$(toupper $thing)_LIST
2721 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2722 $action $(filter "$name" $list)
2723 ;;
2724 --enable-avserver|--disable-avserver*)
2725 warn "avserver has been removed, the ${opt} option is only"\
2726 "provided for compatibility and will be removed in the future"
2727 ;;
2728 --enable-?*|--disable-?*)
2729 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2730 if is_in $option $COMPONENT_LIST; then
2731 test $action = disable && action=unset
2732 eval $action \$$(toupper ${option%s})_LIST
2733 elif is_in $option $CMDLINE_SELECT; then
2734 $action $option
2735 else
2736 die_unknown $opt
2737 fi
2738 ;;
2739 --list-*)
2740 NAME="${opt#--list-}"
2741 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2742 NAME=${NAME%s}
2743 eval show_list $NAME \$$(toupper $NAME)_LIST
2744 ;;
2745 --help|-h) show_help
2746 ;;
2747 --quiet|-q) quiet=yes
2748 ;;
2749 *)
2750 optname="${opt%%=*}"
2751 optname="${optname#--}"
2752 optname=$(echo "$optname" | sed 's/-/_/g')
2753 if is_in $optname $CMDLINE_SET; then
2754 eval $optname='$optval'
2755 elif is_in $optname $CMDLINE_APPEND; then
2756 append $optname "$optval"
2757 else
2758 die_unknown $opt
2759 fi
2760 ;;
2761 esac
2762 done
2763
2764 for e in $env; do
2765 eval "export $e"
2766 done
2767
2768 disabled logging && logfile=/dev/null
2769
2770 # Die early if licensing-related configure options are incompatible.
2771 die_license_disabled() {
2772 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2773 }
2774
2775 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2776 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2777 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2778
2779 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2780
2781 # Disable all the library-specific components if the library itself
2782 # is disabled, see AVCODEC_LIST and following _LIST variables.
2783
2784 disable_components(){
2785 disabled ${1} && disable $(
2786 eval components="\$$(toupper ${1})_COMPONENTS"
2787 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2788 )
2789 }
2790
2791 map 'disable_components $v' $LIBRARY_LIST
2792
2793 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2794 set >> $logfile
2795
2796 case "$toolchain" in
2797 *-asan)
2798 cc_default="${toolchain%-asan}"
2799 add_cflags -fsanitize=address
2800 add_ldflags -fsanitize=address
2801 ;;
2802 *-msan)
2803 cc_default="${toolchain%-msan}"
2804 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2805 add_ldflags -fsanitize=memory
2806 ;;
2807 *-tsan)
2808 cc_default="${toolchain%-tsan}"
2809 add_cflags -fsanitize=thread -pie
2810 add_ldflags -fsanitize=thread -pie
2811 case "$toolchain" in
2812 gcc-tsan)
2813 add_cflags -fPIC
2814 add_ldflags -fPIC
2815 ;;
2816 esac
2817 ;;
2818 *-usan)
2819 cc_default="${toolchain%-usan}"
2820 add_cflags -fsanitize=undefined
2821 add_ldflags -fsanitize=undefined
2822 case "$toolchain" in
2823 clang-usan)
2824 add_cflags -O1
2825 ;;
2826 esac
2827 ;;
2828 valgrind-*)
2829 target_exec_default="valgrind"
2830 case "$toolchain" in
2831 valgrind-massif)
2832 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2833 ;;
2834 valgrind-memcheck)
2835 target_exec_args="--track-origins=yes --leak-check=full"
2836 ;;
2837 esac
2838 ;;
2839 msvc)
2840 # Check whether the current MSVC version needs the C99 converter.
2841 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2842 # support enough of C99 to build libav. Default to the new
2843 # behaviour if the regexp was unable to match anything, since this
2844 # successfully parses the version number of existing supported
2845 # versions that require the converter (MSVC 2010 and 2012).
2846 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2847 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2848 cc_default="cl"
2849 else
2850 cc_default="c99wrap cl"
2851 fi
2852 ld_default="$source_path/compat/windows/mslink"
2853 nm_default="dumpbin -symbols"
2854 ar_default="lib"
2855 case "$arch" in
2856 arm*)
2857 as_default="armasm"
2858 ;;
2859 esac
2860 target_os_default="win32"
2861 # Use a relative path for TMPDIR. This makes sure all the
2862 # ffconf temp files are written with a relative path, avoiding
2863 # issues with msys/win32 path conversion for MSVC parameters
2864 # such as -Fo<file> or -out:<file>.
2865 TMPDIR=.
2866 ;;
2867 icl)
2868 cc_default="icl"
2869 ld_default="xilink"
2870 nm_default="dumpbin -symbols"
2871 ar_default="xilib"
2872 target_os_default="win32"
2873 TMPDIR=.
2874 ;;
2875 gcov)
2876 add_cflags -fprofile-arcs -ftest-coverage
2877 add_ldflags -fprofile-arcs -ftest-coverage
2878 ;;
2879 llvm-cov)
2880 add_cflags -fprofile-arcs -ftest-coverage
2881 add_ldflags --coverage
2882 ;;
2883 hardened)
2884 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2885 add_cflags -fno-strict-overflow -fstack-protector-all
2886 add_ldflags -Wl,-z,relro -Wl,-z,now
2887 ;;
2888 ?*)
2889 die "Unknown toolchain $toolchain"
2890 ;;
2891 esac
2892
2893 test -n "$cross_prefix" && enable cross_compile
2894
2895 if enabled cross_compile; then
2896 test -n "$arch" && test -n "$target_os" ||
2897 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2898 fi
2899
2900 ar_default="${cross_prefix}${ar_default}"
2901 cc_default="${cross_prefix}${cc_default}"
2902 occ_default="${cross_prefix}${occ_default}"
2903 nm_default="${cross_prefix}${nm_default}"
2904 pkg_config_default="${cross_prefix}${pkg_config_default}"
2905 ranlib="${cross_prefix}${ranlib}"
2906 strip="${cross_prefix}${strip}"
2907
2908 sysinclude_default="${sysroot}/usr/include"
2909
2910 set_default arch cc pkg_config sysinclude target_exec target_os
2911 enabled cross_compile || host_cc_default=$cc
2912 set_default host_cc
2913
2914 if ! $pkg_config --version >/dev/null 2>&1; then
2915 warn "$pkg_config not found, library detection may fail."
2916 pkg_config=false
2917 fi
2918
2919 exesuf() {
2920 case $1 in
2921 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2922 esac
2923 }
2924
2925 EXESUF=$(exesuf $target_os)
2926 HOSTEXESUF=$(exesuf $host_os)
2927
2928 # set temporary file name
2929 : ${TMPDIR:=$TEMPDIR}
2930 : ${TMPDIR:=$TMP}
2931 : ${TMPDIR:=/tmp}
2932
2933 if ! check_cmd mktemp -u XXXXXX; then
2934 # simple replacement for missing mktemp
2935 # NOT SAFE FOR GENERAL USE
2936 mktemp(){
2937 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2938 }
2939 fi
2940
2941 tmpfile(){
2942 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2943 (set -C; exec > $tmp) 2>/dev/null ||
2944 die "Unable to create temporary file in $TMPDIR."
2945 append TMPFILES $tmp
2946 eval $1=$tmp
2947 }
2948
2949 trap 'rm -f -- $TMPFILES' EXIT
2950
2951 tmpfile TMPASM .asm
2952 tmpfile TMPC .c
2953 tmpfile TMPE $EXESUF
2954 tmpfile TMPH .h
2955 tmpfile TMPO .o
2956 tmpfile TMPS .S
2957 tmpfile TMPSH .sh
2958 tmpfile TMPV .ver
2959
2960 unset -f mktemp
2961
2962 chmod +x $TMPE
2963
2964 # make sure we can execute files in $TMPDIR
2965 cat > $TMPSH 2>> $logfile <<EOF
2966 #! /bin/sh
2967 EOF
2968 chmod +x $TMPSH >> $logfile 2>&1
2969 if ! $TMPSH >> $logfile 2>&1; then
2970 cat <<EOF
2971 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2972 variable to another directory and make sure that it is not mounted noexec.
2973 EOF
2974 die "Sanity test failed."
2975 fi
2976
2977 armasm_flags(){
2978 for flag; do
2979 case $flag in
2980 # Filter out MSVC cl.exe options from cflags that shouldn't
2981 # be passed to gas-preprocessor
2982 -M[TD]*) ;;
2983 *) echo $flag ;;
2984 esac
2985 done
2986 }
2987
2988 ccc_flags(){
2989 for flag; do
2990 case $flag in
2991 -std=c99) echo -c99 ;;
2992 -mcpu=*) echo -arch ${flag#*=} ;;
2993 -mieee) echo -ieee ;;
2994 -O*|-fast) echo $flag ;;
2995 -fno-math-errno) echo -assume nomath_errno ;;
2996 -g) echo -g3 ;;
2997 -Wall) echo -msg_enable level2 ;;
2998 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2999 -Wl,*) echo $flag ;;
3000 -f*|-W*) ;;
3001 *) echo $flag ;;
3002 esac
3003 done
3004 }
3005
3006 cparser_flags(){
3007 for flag; do
3008 case $flag in
3009 -Wno-switch) echo -Wno-switch-enum ;;
3010 -Wno-format-zero-length) ;;
3011 -Wdisabled-optimization) ;;
3012 -Wno-pointer-sign) echo -Wno-other ;;
3013 *) echo $flag ;;
3014 esac
3015 done
3016 }
3017
3018 msvc_common_flags(){
3019 for flag; do
3020 case $flag in
3021 # In addition to specifying certain flags under the compiler
3022 # specific filters, they must be specified here as well or else the
3023 # generic catch all at the bottom will print the original flag.
3024 -Wall) ;;
3025 -std=c99) ;;
3026 # Common flags
3027 -fomit-frame-pointer) ;;
3028 -g) echo -Z7 ;;
3029 -fno-math-errno) ;;
3030 -fno-common) ;;
3031 -fno-signed-zeros) ;;
3032 -fPIC) ;;
3033 -mthumb) ;;
3034 -march=*) ;;
3035 -lz) echo zlib.lib ;;
3036 -lavicap32) echo vfw32.lib user32.lib ;;
3037 -lx264) echo libx264.lib ;;
3038 -l*) echo ${flag#-l}.lib ;;
3039 -L*) echo -libpath:${flag#-L} ;;
3040 *) echo $flag ;;
3041 esac
3042 done
3043 }
3044
3045 msvc_flags(){
3046 msvc_common_flags "$@"
3047 for flag; do
3048 case $flag in
3049 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3050 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3051 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3052 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3053 esac
3054 done
3055 }
3056
3057 icl_flags(){
3058 msvc_common_flags "$@"
3059 for flag; do
3060 case $flag in
3061 # Despite what Intel's documentation says -Wall, which is supported
3062 # on Windows, does enable remarks so disable them here.
3063 -Wall) echo $flag -Qdiag-disable:remark ;;
3064 -std=c99) echo -Qstd=c99 ;;
3065 esac
3066 done
3067 }
3068
3069 pgi_flags(){
3070 for flag; do
3071 case $flag in
3072 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3073 -fomit-frame-pointer) echo -Mnoframe ;;
3074 -g) echo -gopt ;;
3075 *) echo $flag ;;
3076 esac
3077 done
3078 }
3079
3080 suncc_flags(){
3081 for flag; do
3082 case $flag in
3083 -march=*|-mcpu=*)
3084 case "${flag#*=}" in
3085 native) echo -xtarget=native ;;
3086 v9|niagara) echo -xarch=sparc ;;
3087 ultrasparc) echo -xarch=sparcvis ;;
3088 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3089 i586|pentium) echo -xchip=pentium ;;
3090 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3091 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3092 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3093 pentium4*) echo -xtarget=pentium4 ;;
3094 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3095 *-sse3) echo -xarch=sse3 ;;
3096 core2) echo -xarch=ssse3 -xchip=core2 ;;
3097 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3098 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3099 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3100 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3101 k8|opteron|athlon64|athlon-fx)
3102 echo -xarch=sse2a ;;
3103 athlon*) echo -xarch=pentium_proa ;;
3104 esac
3105 ;;
3106 -std=c99) echo -xc99 ;;
3107 -fomit-frame-pointer) echo -xregs=frameptr ;;
3108 -fPIC) echo -KPIC -xcode=pic32 ;;
3109 -W*,*) echo $flag ;;
3110 -f*-*|-W*|-mimpure-text) ;;
3111 -shared) echo -G ;;
3112 *) echo $flag ;;
3113 esac
3114 done
3115 }
3116
3117 tms470_flags(){
3118 for flag; do
3119 case $flag in
3120 -march=*|-mcpu=*)
3121 case "${flag#*=}" in
3122 armv7-a|cortex-a*) echo -mv=7a8 ;;
3123 armv7-r|cortex-r*) echo -mv=7r4 ;;
3124 armv7-m|cortex-m*) echo -mv=7m3 ;;
3125 armv6*|arm11*) echo -mv=6 ;;
3126 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3127 echo -mv=5e ;;
3128 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3129 esac
3130 ;;
3131 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3132 -mfpu=vfp) echo --float_support=vfpv2 ;;
3133 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3134 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3135 -msoft-float) echo --float_support=vfplib ;;
3136 -O[0-3]|-mf=*) echo $flag ;;
3137 -g) echo -g -mn ;;
3138 -pds=*) echo $flag ;;
3139 -D*|-I*) echo $flag ;;
3140 --gcc|--abi=*) echo $flag ;;
3141 -me) echo $flag ;;
3142 esac
3143 done
3144 }
3145
3146 probe_cc(){
3147 pfx=$1
3148 _cc=$2
3149
3150 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3151 unset _ld_o _ldflags _ld_lib _ld_path
3152 unset _depflags _DEPCMD _DEPFLAGS
3153 _flags_filter=echo
3154
3155 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3156 _type=llvm_gcc
3157 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3158 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3159 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3160 _cflags_speed='-O3'
3161 _cflags_size='-Os'
3162 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3163 _type=gcc
3164 gcc_version=$($_cc --version | head -n1)
3165 gcc_basever=$($_cc -dumpversion)
3166 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3167 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3168 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3169 if ! $_cc -dumpversion | grep -q '^2\.'; then
3170 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3171 fi
3172 _cflags_speed='-O3'
3173 _cflags_size='-Os'
3174 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3175 _type=icc
3176 _ident=$($_cc --version | head -n1)
3177 _depflags='-MMD'
3178 _cflags_speed='-O3'
3179 _cflags_size='-Os'
3180 _cflags_noopt='-O1'
3181 elif $_cc -v 2>&1 | grep -q xlc; then
3182 _type=xlc
3183 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3184 _cflags_speed='-O5'
3185 _cflags_size='-O5 -qcompact'
3186 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3187 _type=ccc
3188 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3189 _DEPFLAGS='-M'
3190 _cflags_speed='-fast'
3191 _cflags_size='-O1'
3192 _flags_filter=ccc_flags
3193 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3194 test -d "$sysroot" || die "No valid sysroot specified."
3195 _type=armcc
3196 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3197 armcc_conf="$PWD/armcc.conf"
3198 $_cc --arm_linux_configure \
3199 --arm_linux_config_file="$armcc_conf" \
3200 --configure_sysroot="$sysroot" \
3201 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3202 die "Error creating armcc configuration file."
3203 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3204 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3205 as_default="${cross_prefix}gcc"
3206 _depflags='-MMD'
3207 _cflags_speed='-O3'
3208 _cflags_size='-Os'
3209 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3210 _type=tms470
3211 _ident=$($_cc -version | head -n1 | tr -s ' ')
3212 _flags='--gcc --abi=eabi -me'
3213 _cc_e='-ppl -fe=$@'
3214 _cc_o='-fe=$@'
3215 _depflags='-ppa -ppd=$(@:.o=.d)'
3216 _cflags_speed='-O3 -mf=5'
3217 _cflags_size='-O3 -mf=2'
3218 _flags_filter=tms470_flags
3219 elif $_cc -v 2>&1 | grep -q clang; then
3220 _type=clang
3221 _ident=$($_cc --version 2>/dev/null | head -n1)
3222 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3223 _cflags_speed='-O3'
3224 _cflags_size='-Os'
3225 elif $_cc -V 2>&1 | grep -q Sun; then
3226 _type=suncc
3227 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3228 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3229 _DEPFLAGS='-xM1 -xc99'
3230 _ldflags='-std=c99'
3231 _cflags_speed='-O5'
3232 _cflags_size='-O5 -xspace'
3233 _flags_filter=suncc_flags
3234 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3235 _type=pathscale
3236 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3237 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3238 _cflags_speed='-O2'
3239 _cflags_size='-Os'
3240 _flags_filter='filter_out -Wdisabled-optimization'
3241 elif $_cc -v 2>&1 | grep -q Open64; then
3242 _type=open64
3243 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3244 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3245 _cflags_speed='-O2'
3246 _cflags_size='-Os'
3247 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3248 elif $_cc -V 2>&1 | grep -q Portland; then
3249 _type=pgi
3250 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3251 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3252 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3253 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3254 _cflags_noopt="-O1"
3255 _flags_filter=pgi_flags
3256 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3257 _type=armasm
3258 _ident=$($_cc | head -n1)
3259 # 4509: "This form of conditional instruction is deprecated"
3260 _flags="-nologo -ignore 4509"
3261 _flags_filter=armasm_flags
3262 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3263 _type=msvc
3264 _ident=$($_cc 2>&1 | head -n1)
3265 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3266 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3267 _cflags_speed="-O2"
3268 _cflags_size="-O1"
3269 if $_cc -nologo- 2>&1 | grep -q Linker; then
3270 _ld_o='-out:$@'
3271 else
3272 _ld_o='-Fe$@'
3273 fi
3274 _cc_o='-Fo$@'
3275 _cc_e='-P -Fi$@'
3276 _flags_filter=msvc_flags
3277 _ld_lib='lib%.a'
3278 _ld_path='-libpath:'
3279 _flags='-nologo'
3280 elif $_cc 2>&1 | grep -q Intel; then
3281 _type=icl
3282 _ident=$($_cc 2>&1 | head -n1)
3283 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3284 # Not only is O3 broken on 13.x+ but it is slower on all previous
3285 # versions (tested) as well.
3286 _cflags_speed="-O2"
3287 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3288 if $_cc 2>&1 | grep -q Linker; then
3289 _ld_o='-out:$@'
3290 else
3291 _ld_o='-Fe$@'
3292 fi
3293 _cc_o='-Fo$@'
3294 _cc_e='-P'
3295 _flags_filter=icl_flags
3296 _ld_lib='lib%.a'
3297 _ld_path='-libpath:'
3298 # -Qdiag-error to make icl error when seeing certain unknown arguments
3299 _flags='-nologo -Qdiag-error:4044,10157'
3300 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3301 # with MSVC which enables it by default.
3302 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3303 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3304 # lld can emulate multiple different linkers; in ms link.exe mode,
3305 # the -? parameter gives the help output which contains an identifyable
3306 # string, while it gives an error in other modes.
3307 _type=lld-link
3308 # The link.exe mode doesn't have a switch for getting the version,
3309 # but we can force it back to gnu mode and get the version from there.
3310 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3311 _ld_o='-out:$@'
3312 _flags_filter=msvc_flags
3313 _ld_lib='lib%.a'
3314 _ld_path='-libpath:'
3315 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3316 _type=cparser
3317 _ident=$($_cc --version | head -n1)
3318 _depflags='-MMD'
3319 _cflags_speed='-O4'
3320 _cflags_size='-O2'
3321 _flags_filter=cparser_flags
3322 fi
3323
3324 eval ${pfx}_type=\$_type
3325 eval ${pfx}_ident=\$_ident
3326 }
3327
3328 set_ccvars(){
3329 eval ${1}_C=\${_cc_c-\${${1}_C}}
3330 eval ${1}_E=\${_cc_e-\${${1}_E}}
3331 eval ${1}_O=\${_cc_o-\${${1}_O}}
3332
3333 if [ -n "$_depflags" ]; then
3334 eval ${1}_DEPFLAGS=\$_depflags
3335 else
3336 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3337 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3338 eval DEP${1}FLAGS=\$_flags
3339 fi
3340 }
3341
3342 probe_cc cc "$cc"
3343 cflags_filter=$_flags_filter
3344 cflags_speed=$_cflags_speed
3345 cflags_size=$_cflags_size
3346 cflags_noopt=$_cflags_noopt
3347 add_cflags $_flags $_cflags
3348 cc_ldflags=$_ldflags
3349 set_ccvars CC
3350
3351 probe_cc hostcc "$host_cc"
3352 host_cflags_filter=$_flags_filter
3353 add_host_cflags $_flags $_cflags
3354 set_ccvars HOSTCC
3355
3356 test -n "$cc_type" && enable $cc_type ||
3357 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3358
3359 : ${as_default:=$cc}
3360 : ${objcc_default:=$cc}
3361 : ${dep_cc_default:=$cc}
3362 : ${ld_default:=$cc}
3363 : ${host_ld_default:=$host_cc}
3364 set_default ar as objcc dep_cc ld host_ld
3365
3366 probe_cc as "$as"
3367 asflags_filter=$_flags_filter
3368 add_asflags $_flags $_cflags
3369 set_ccvars AS
3370
3371 probe_cc objcc "$objcc"
3372 objcflags_filter=$_flags_filter
3373 add_objcflags $_flags $_cflags
3374 set_ccvars OBJC
3375
3376 probe_cc ld "$ld"
3377 ldflags_filter=$_flags_filter
3378 add_ldflags $_flags $_ldflags
3379 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3380 LD_O=${_ld_o-$LD_O}
3381 LD_LIB=${_ld_lib-$LD_LIB}
3382 LD_PATH=${_ld_path-$LD_PATH}
3383
3384 probe_cc hostld "$host_ld"
3385 host_ldflags_filter=$_flags_filter
3386 add_host_ldflags $_flags $_ldflags
3387 HOSTLD_O=${_ld_o-$HOSTLD_O}
3388
3389 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3390 probe_cc depcc "$dep_cc"
3391 CCDEP=${_DEPCMD:-$DEPCMD}
3392 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3393 DEPCCFLAGS=$_flags
3394 fi
3395
3396 if $ar 2>&1 | grep -q Microsoft; then
3397 arflags="-nologo"
3398 ar_o='-out:$@'
3399 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3400 arflags="rq"
3401 ar_o='$@'
3402 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3403 arflags='-Xany -r -c'
3404 ar_o='$@'
3405 else
3406 arflags="rc"
3407 ar_o='$@'
3408 fi
3409
3410 add_cflags $extra_cflags
3411 add_objcflags $extra_objcflags
3412 add_asflags $extra_cflags
3413
3414 if test -n "$sysroot"; then
3415 case "$cc_type" in
3416 gcc|llvm_gcc|clang)
3417 add_cppflags --sysroot="$sysroot"
3418 add_ldflags --sysroot="$sysroot"
3419 ;;
3420 tms470)
3421 add_cppflags -I"$sysinclude"
3422 add_ldflags --sysroot="$sysroot"
3423 ;;
3424 esac
3425 fi
3426
3427 if test "$cpu" = host; then
3428 enabled cross_compile &&
3429 die "--cpu=host makes no sense when cross-compiling."
3430
3431 case "$cc_type" in
3432 gcc|llvm_gcc)
3433 check_native(){
3434 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3435 sed -n "/cc1.*$1=/{
3436 s/.*$1=\\([^ ]*\\).*/\\1/
3437 p
3438 q
3439 }" $TMPE
3440 }
3441 cpu=$(check_native -march || check_native -mcpu)
3442 ;;
3443 esac
3444
3445 test "${cpu:-host}" = host &&
3446 die "--cpu=host not supported with compiler $cc"
3447 fi
3448
3449 # Deal with common $arch aliases
3450 case "$arch" in
3451 aarch64|arm64)
3452 arch="aarch64"
3453 ;;
3454 arm*)
3455 arch="arm"
3456 ;;
3457 mips*|IP*)
3458 case "$arch" in
3459 *el)
3460 add_cppflags -EL
3461 add_ldflags -EL
3462 ;;
3463 *eb)
3464 add_cppflags -EB
3465 add_ldflags -EB
3466 ;;
3467 esac
3468 arch="mips"
3469 ;;
3470 parisc*|hppa*)
3471 arch="parisc"
3472 ;;
3473 "Power Macintosh"|ppc*|powerpc*)
3474 arch="ppc"
3475 ;;
3476 s390|s390x)
3477 arch="s390"
3478 ;;
3479 sh4|sh)
3480 arch="sh4"
3481 ;;
3482 sun4u|sparc*)
3483 arch="sparc"
3484 ;;
3485 tilegx|tile-gx)
3486 arch="tilegx"
3487 ;;
3488 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3489 arch="x86"
3490 ;;
3491 esac
3492
3493 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3494 enable $arch
3495
3496 # Add processor-specific flags
3497 if enabled aarch64; then
3498
3499 case $cpu in
3500 armv*)
3501 cpuflags="-march=$cpu"
3502 ;;
3503 *)
3504 cpuflags="-mcpu=$cpu"
3505 ;;
3506 esac
3507
3508 elif enabled alpha; then
3509
3510 cpuflags="-mcpu=$cpu"
3511
3512 elif enabled arm; then
3513
3514 check_arm_arch() {
3515 check_cpp_condition stddef.h \
3516 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3517 $cpuflags
3518 }
3519
3520 probe_arm_arch() {
3521 if check_arm_arch 4; then echo armv4
3522 elif check_arm_arch 4T; then echo armv4t
3523 elif check_arm_arch 5; then echo armv5
3524 elif check_arm_arch 5E; then echo armv5e
3525 elif check_arm_arch 5T; then echo armv5t
3526 elif check_arm_arch 5TE; then echo armv5te
3527 elif check_arm_arch 5TEJ; then echo armv5te
3528 elif check_arm_arch 6; then echo armv6
3529 elif check_arm_arch 6J; then echo armv6j
3530 elif check_arm_arch 6K; then echo armv6k
3531 elif check_arm_arch 6Z; then echo armv6z
3532 elif check_arm_arch 6ZK; then echo armv6zk
3533 elif check_arm_arch 6T2; then echo armv6t2
3534 elif check_arm_arch 7; then echo armv7
3535 elif check_arm_arch 7A 7_A; then echo armv7-a
3536 elif check_arm_arch 7S; then echo armv7-a
3537 elif check_arm_arch 7R 7_R; then echo armv7-r
3538 elif check_arm_arch 7M 7_M; then echo armv7-m
3539 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3540 elif check_arm_arch 8A 8_A; then echo armv8-a
3541 fi
3542 }
3543
3544 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3545
3546 case $cpu in
3547 armv*)
3548 cpuflags="-march=$cpu"
3549 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3550 ;;
3551 *)
3552 cpuflags="-mcpu=$cpu"
3553 case $cpu in
3554 cortex-a*) subarch=armv7a ;;
3555 cortex-r*) subarch=armv7r ;;
3556 cortex-m*) enable thumb; subarch=armv7m ;;
3557 arm11*) subarch=armv6 ;;
3558 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3559 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3560 *) subarch=$(probe_arm_arch) ;;
3561 esac
3562 ;;
3563 esac
3564
3565 case "$subarch" in
3566 armv5t*) enable fast_clz ;;
3567 armv[6-8]*) enable fast_clz fast_unaligned ;;
3568 esac
3569
3570 elif enabled avr32; then
3571
3572 case $cpu in
3573 ap7[02]0[0-2])
3574 subarch="avr32_ap"
3575 cpuflags="-mpart=$cpu"
3576 ;;
3577 ap)
3578 subarch="avr32_ap"
3579 cpuflags="-march=$cpu"
3580 ;;
3581 uc3[ab]*)
3582 subarch="avr32_uc"
3583 cpuflags="-mcpu=$cpu"
3584 ;;
3585 uc)
3586 subarch="avr32_uc"
3587 cpuflags="-march=$cpu"
3588 ;;
3589 esac
3590
3591 elif enabled bfin; then
3592
3593 cpuflags="-mcpu=$cpu"
3594
3595 elif enabled mips; then
3596
3597 cpuflags="-march=$cpu"
3598
3599 elif enabled ppc; then
3600
3601 disable ldbrx
3602
3603 case $(tolower $cpu) in
3604 601|ppc601|powerpc601)
3605 cpuflags="-mcpu=601"
3606 disable altivec
3607 ;;
3608 603*|ppc603*|powerpc603*)
3609 cpuflags="-mcpu=603"
3610 disable altivec
3611 ;;
3612 604*|ppc604*|powerpc604*)
3613 cpuflags="-mcpu=604"
3614 disable altivec
3615 ;;
3616 g3|75*|ppc75*|powerpc75*)
3617 cpuflags="-mcpu=750"
3618 disable altivec
3619 ;;
3620 g4|745*|ppc745*|powerpc745*)
3621 cpuflags="-mcpu=7450"
3622 disable vsx
3623 ;;
3624 74*|ppc74*|powerpc74*)
3625 cpuflags="-mcpu=7400"
3626 disable vsx
3627 ;;
3628 g5|970|ppc970|powerpc970)
3629 cpuflags="-mcpu=970"
3630 disable vsx
3631 ;;
3632 power[3-6]*)
3633 cpuflags="-mcpu=$cpu"
3634 disable vsx
3635 ;;
3636 power[7-8]*)
3637 cpuflags="-mcpu=$cpu"
3638 enable ldbrx
3639 ;;
3640 cell)
3641 cpuflags="-mcpu=cell"
3642 enable ldbrx
3643 disable vsx
3644 ;;
3645 e500mc)
3646 cpuflags="-mcpu=e500mc"
3647 disable altivec
3648 ;;
3649 e500v2)
3650 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3651 disable altivec
3652 disable dcbzl
3653 ;;
3654 e500)
3655 cpuflags="-mcpu=8540 -mhard-float"
3656 disable altivec
3657 disable dcbzl
3658 ;;
3659 esac
3660
3661 elif enabled sparc; then
3662
3663 case $cpu in
3664 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3665 cpuflags="-mcpu=$cpu"
3666 ;;
3667 ultrasparc*|niagara[234])
3668 cpuflags="-mcpu=$cpu"
3669 ;;
3670 esac
3671
3672 elif enabled x86; then
3673
3674 case $cpu in
3675 i[345]86|pentium)
3676 cpuflags="-march=$cpu"
3677 disable i686
3678 disable mmx
3679 ;;
3680 # targets that do NOT support nopl and conditional mov (cmov)
3681 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3682 cpuflags="-march=$cpu"
3683 disable i686
3684 ;;
3685 # targets that do support nopl and conditional mov (cmov)
3686 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3687 cpuflags="-march=$cpu"
3688 enable i686
3689 enable fast_cmov
3690 ;;
3691 # targets that do support conditional mov but on which it's slow
3692 pentium4|pentium4m|prescott|nocona)
3693 cpuflags="-march=$cpu"
3694 enable i686
3695 disable fast_cmov
3696 ;;
3697 esac
3698
3699 fi
3700
3701 if [ "$cpu" != generic ]; then
3702 add_cflags $cpuflags
3703 add_asflags $cpuflags
3704 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3705 fi
3706
3707 # compiler sanity check
3708 check_exec <<EOF
3709 int main(void){ return 0; }
3710 EOF
3711 if test "$?" != 0; then
3712 echo "$cc is unable to create an executable file."
3713 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3714 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3715 echo "Only do this if you know what cross compiling means."
3716 fi
3717 die "C compiler test failed."
3718 fi
3719
3720 add_cppflags -D_ISOC99_SOURCE
3721
3722 # some compilers silently accept -std=c11, so we also need to check that the
3723 # version macro is defined properly
3724 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3725 add_cflags -std=c11
3726 else
3727 check_cflags -std=c99
3728 fi
3729
3730 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3731 #include <stdlib.h>
3732 EOF
3733 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3734 #include <stdlib.h>
3735 EOF
3736
3737 add_host_cppflags -D_ISOC99_SOURCE
3738 check_host_cflags -std=c99
3739 check_host_cflags -Wall
3740 check_host_cflags -O3
3741
3742 check_64bit(){
3743 arch32=$1
3744 arch64=$2
3745 expr=$3
3746 check_code cc "" "int test[2*($expr) - 1]" &&
3747 subarch=$arch64 || subarch=$arch32
3748 }
3749
3750 case "$arch" in
3751 aarch64|alpha|ia64)
3752 spic=$shared
3753 ;;
3754 mips)
3755 check_64bit mips mips64 '_MIPS_SIM > 1'
3756 spic=$shared
3757 ;;
3758 parisc)
3759 check_64bit parisc parisc64 'sizeof(void *) > 4'
3760 spic=$shared
3761 ;;
3762 ppc)
3763 check_64bit ppc ppc64 'sizeof(void *) > 4'
3764 spic=$shared
3765 ;;
3766 s390)
3767 check_64bit s390 s390x 'sizeof(void *) > 4'
3768 spic=$shared
3769 ;;
3770 sparc)
3771 check_64bit sparc sparc64 'sizeof(void *) > 4'
3772 spic=$shared
3773 ;;
3774 x86)
3775 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3776 if test "$subarch" = "x86_64"; then
3777 spic=$shared
3778 fi
3779 ;;
3780 esac
3781
3782 enable $subarch
3783 enabled spic && enable_weak pic
3784
3785 # OS specific
3786 case $target_os in
3787 aix)
3788 SHFLAGS=-shared
3789 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3790 enabled shared && add_ldflags -Wl,-brtl
3791 ;;
3792 android)
3793 disable symver
3794 enable section_data_rel_ro
3795 SLIB_INSTALL_NAME='$(SLIBNAME)'
3796 SLIB_INSTALL_LINKS=
3797 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3798 ;;
3799 haiku)
3800 prefix_default="/boot/common"
3801 network_extralibs="-lnetwork"
3802 host_libs=
3803 ;;
3804 sunos)
3805 SHFLAGS='-shared -Wl,-h,$$(@F)'
3806 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3807 network_extralibs="-lsocket -lnsl"
3808 # When using suncc to build, the Solaris linker will mark
3809 # an executable with each instruction set encountered by
3810 # the Solaris assembler. As our libraries contain their own
3811 # guards for processor-specific code, instead suppress
3812 # generation of the HWCAPS ELF section on Solaris x86 only.
3813 enabled_all suncc x86 &&
3814 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3815 add_ldflags -Wl,-M,mapfile
3816 nm_default='nm -P -g'
3817 version_script='-M'
3818 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3819 ;;
3820 netbsd)
3821 disable symver
3822 oss_indev_extralibs="-lossaudio"
3823 oss_outdev_extralibs="-lossaudio"
3824 ;;
3825 openbsd|bitrig)
3826 disable symver
3827 SHFLAGS='-shared'
3828 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3829 SLIB_INSTALL_LINKS=
3830 oss_indev_extralibs="-lossaudio"
3831 oss_outdev_extralibs="-lossaudio"
3832 ;;
3833 dragonfly)
3834 disable symver
3835 ;;
3836 freebsd)
3837 ;;
3838 bsd/os)
3839 add_extralibs -lpoll -lgnugetopt
3840 ;;
3841 darwin)
3842 enabled ppc && add_asflags -force_cpusubtype_ALL
3843 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3844 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3845 add_ldflags -Wl,-dynamic,-search_paths_first
3846 SLIBSUF=".dylib"
3847 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3848 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3849 objformat="macho"
3850 enabled x86_64 && objformat="macho64"
3851 enabled_any pic shared ||
3852 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3853 check_header dispatch/dispatch.h &&
3854 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3855 ;;
3856 msys*)
3857 die "Native MSYS builds are discouraged, please use the MINGW environment."
3858 ;;
3859 mingw32*|mingw64*)
3860 if test $target_os = "mingw32ce"; then
3861 disable network
3862 else
3863 target_os=mingw32
3864 fi
3865 LIBTARGET=i386
3866 if enabled x86_64; then
3867 LIBTARGET="i386:x86-64"
3868 elif enabled arm; then
3869 LIBTARGET=arm-wince
3870 fi
3871 check_ldflags -Wl,--nxcompat
3872 check_ldflags -Wl,--dynamicbase
3873 shlibdir_default="$bindir_default"
3874 SLIBPREF=""
3875 SLIBSUF=".dll"
3876 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3877 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3878 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3879 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3880 SLIB_INSTALL_LINKS=
3881 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3882 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3883 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3884 objformat="win32"
3885 dlltool="${cross_prefix}dlltool"
3886 ranlib=:
3887 enable dos_paths
3888 ;;
3889 win32|win64)
3890 disable symver
3891 if enabled shared; then
3892 # Link to the import library instead of the normal static library
3893 # for shared libs.
3894 LD_LIB='%.lib'
3895 # Cannot build both shared and static libs with MSVC or icl.
3896 disable static
3897 fi
3898 shlibdir_default="$bindir_default"
3899 SLIBPREF=""
3900 SLIBSUF=".dll"
3901 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3902 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3903 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3904 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3905 SLIB_INSTALL_LINKS=
3906 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3907 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3908 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3909 objformat="win32"
3910 ranlib=:
3911 enable dos_paths
3912 ;;
3913 cygwin*)
3914 target_os=cygwin
3915 shlibdir_default="$bindir_default"
3916 SLIBPREF="cyg"
3917 SLIBSUF=".dll"
3918 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3919 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3920 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3921 SLIB_INSTALL_LINKS=
3922 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3923 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3924 objformat="win32"
3925 enable dos_paths
3926 ;;
3927 *-dos|freedos|opendos)
3928 network_extralibs="-lsocket"
3929 objformat="coff"
3930 enable dos_paths
3931 add_cppflags -U__STRICT_ANSI__
3932 ;;
3933 linux)
3934 enable dv1394
3935 enable section_data_rel_ro
3936 ;;
3937 irix*)
3938 target_os=irix
3939 ranlib="echo ignoring ranlib"
3940 ;;
3941 os/2*)
3942 ln_s="cp -f"
3943 objformat="aout"
3944 add_cppflags -D_GNU_SOURCE
3945 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3946 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3947 LIBSUF="_s.a"
3948 SLIBPREF=""
3949 SLIBSUF=".dll"
3950 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3951 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3952 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3953 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3954 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3955 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3956 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3957 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3958 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3959 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3960 enable dos_paths
3961 ;;
3962 gnu/kfreebsd)
3963 add_cppflags -D_BSD_SOURCE
3964 ;;
3965 gnu)
3966 ;;
3967 qnx)
3968 add_cppflags -D_QNX_SOURCE
3969 network_extralibs="-lsocket"
3970 ;;
3971 symbian)
3972 SLIBSUF=".dll"
3973 enable dos_paths
3974 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3975 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3976 add_ldflags -Wl,--target1-abs,--no-undefined \
3977 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3978 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3979 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3980 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3981 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3982 ;;
3983 osf1)
3984 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3985 ;;
3986 minix)
3987 ;;
3988 none)
3989 ;;
3990 *)
3991 die "Unknown OS '$target_os'."
3992 ;;
3993 esac
3994
3995 # determine libc flavour
3996
3997 probe_libc(){
3998 pfx=$1
3999 pfx_no_=${pfx%_}
4000 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4001 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4002 eval ${pfx}libc_type=uclibc
4003 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4004 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4005 eval ${pfx}libc_type=glibc
4006 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4007 # MinGW headers can be installed on Cygwin, so check for newlib first.
4008 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4009 eval ${pfx}libc_type=newlib
4010 add_${pfx}cppflags -U__STRICT_ANSI__
4011 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4012 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4013 eval ${pfx}libc_type=mingw64
4014 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4015 eval test \$${pfx_no_}cc_type = "gcc" &&
4016 add_${pfx}cppflags -D__printf__=__gnu_printf__
4017 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4018 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4019 eval ${pfx}libc_type=mingw32
4020 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4021 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4022 die "ERROR: MinGW32 runtime version must be >= 3.15."
4023 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4024 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4025 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4026 eval test \$${pfx_no_}cc_type = "gcc" &&
4027 add_${pfx}cppflags -D__printf__=__gnu_printf__
4028 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4029 eval ${pfx}libc_type=msvcrt
4030 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4031 if [ "$pfx" = host_ ]; then
4032 add_host_cppflags -Dsnprintf=_snprintf
4033 else
4034 add_compat strtod.o strtod=avpriv_strtod
4035 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4036 _snprintf=avpriv_snprintf \
4037 vsnprintf=avpriv_vsnprintf
4038 fi
4039 fi
4040 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4041 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4042 # 0x601 by default unless something else is set by the user.
4043 # This can easily lead to us detecting functions only present
4044 # in such new versions and producing binaries requiring windows 7.0.
4045 # Therefore explicitly set the default to XP unless the user has
4046 # set something else on the command line.
4047 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4048 # family. For these cases, configure is free to use any functions
4049 # found in the SDK headers by default. (Alternatively, we could force
4050 # _WIN32_WINNT to 0x0602 in that case.)
4051 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4052 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4053 #ifdef WINAPI_FAMILY
4054 #include <winapifamily.h>
4055 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4056 #error not desktop
4057 #endif
4058 #endif
4059 EOF
4060 if [ "$pfx" = "" ]; then
4061 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4062 fi
4063 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4064 eval ${pfx}libc_type=klibc
4065 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4066 eval ${pfx}libc_type=bionic
4067 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4068 eval ${pfx}libc_type=solaris
4069 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4070 else
4071 eval ${pfx}libc_type=default
4072 add_${pfx}cppflags -D_DEFAULT_SOURCE
4073 fi
4074 }
4075
4076 probe_libc
4077 test -n "$libc_type" && enable libc_$libc_type
4078 probe_libc host_
4079 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4080
4081 case $libc_type in
4082 bionic)
4083 add_compat strtod.o strtod=avpriv_strtod
4084 ;;
4085 esac
4086
4087 # hacks for compiler/libc/os combinations
4088
4089 if enabled_all tms470 libc_glibc; then
4090 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4091 add_cppflags -D__USER_LABEL_PREFIX__=
4092 add_cppflags -D__builtin_memset=memset
4093 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4094 add_cflags -pds=48 # incompatible redefinition of macro
4095 fi
4096
4097 if enabled_all ccc libc_glibc; then
4098 add_ldflags -Wl,-z,now # calls to libots crash without this
4099 fi
4100
4101 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4102 add_cppflags '-I\$(SRC_PATH)/compat/float'
4103
4104 esc(){
4105 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4106 }
4107
4108 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4109
4110 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4111
4112 set_default $PATHS_LIST
4113 set_default nm
4114
4115 # we need to build at least one lib type
4116 if ! enabled_any static shared; then
4117 cat <<EOF
4118 At least one library type must be built.
4119 Specify --enable-static to build the static libraries or --enable-shared to
4120 build the shared libraries as well. To only build the shared libraries specify
4121 --disable-static in addition to --enable-shared.
4122 EOF
4123 exit 1
4124 fi
4125
4126 disabled optimizations || check_cflags -fomit-frame-pointer
4127
4128 enable_weak_pic() {
4129 disabled pic && return
4130 enable pic
4131 add_cppflags -DPIC
4132 case "$target_os" in
4133 mingw*|cygwin*)
4134 ;;
4135 *)
4136 add_cflags -fPIC
4137 ;;
4138 esac
4139 add_asflags -fPIC
4140 }
4141
4142 enabled pic && enable_weak_pic
4143
4144 check_cc <<EOF || die "Symbol mangling check failed."
4145 int ff_extern;
4146 EOF
4147 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4148 extern_prefix=${sym%%ff_extern*}
4149
4150 check_cc <<EOF && enable_weak inline_asm
4151 void foo(void) { __asm__ volatile ("" ::); }
4152 EOF
4153
4154 _restrict=
4155 for restrict_keyword in restrict __restrict__ __restrict; do
4156 check_cc <<EOF && _restrict=$restrict_keyword && break
4157 void foo(char * $restrict_keyword p);
4158 EOF
4159 done
4160
4161 check_cc <<EOF && enable pragma_deprecated
4162 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4163 EOF
4164
4165 check_cc <<EOF && enable attribute_packed
4166 struct { int x; } __attribute__((packed)) x;
4167 EOF
4168
4169 check_cc <<EOF && enable attribute_may_alias
4170 union { int x; } __attribute__((may_alias)) x;
4171 EOF
4172
4173 check_cc <<EOF || die "endian test failed"
4174 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4175 EOF
4176 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4177
4178 check_gas() {
4179 log "check_gas using '$as' as AS"
4180 # :vararg is used on aarch64, arm and ppc altivec
4181 check_as <<EOF || return 1
4182 .macro m n, y:vararg=0
4183 \n: .int \y
4184 .endm
4185 m x
4186 EOF
4187 # .altmacro is only used in arm asm
4188 ! enabled arm || check_as <<EOF || return 1
4189 .altmacro
4190 EOF
4191 enable gnu_as
4192 return 0
4193 }
4194
4195 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4196 nogas=:
4197 enabled_any arm aarch64 && nogas=die
4198 enabled_all ppc altivec && nogas=warn
4199 as_noop=-v
4200
4201 case $as_type in
4202 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4203 gcc) gaspp_as_type=gas ;;
4204 *) gaspp_as_type=$as_type ;;
4205 esac
4206
4207 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4208
4209 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4210 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4211
4212 if ! check_gas ; then
4213 as=${gas:=$as}
4214 check_gas || \
4215 $nogas "GNU assembler not found, install/update gas-preprocessor"
4216 fi
4217
4218 check_as <<EOF && enable as_func
4219 .func test
4220 .endfunc
4221 EOF
4222 fi
4223
4224 check_inline_asm inline_asm_labels '"1:\n"'
4225
4226 if enabled aarch64; then
4227 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4228 # internal assembler in clang 3.3 does not support this instruction
4229 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4230 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4231
4232 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4233
4234 elif enabled alpha; then
4235
4236 check_cflags -mieee
4237
4238 elif enabled arm; then
4239
4240 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4241 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4242 enabled thumb && check_cflags -mthumb || check_cflags -marm
4243
4244 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4245 enable vfp_args
4246 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4247 enable vfp_args
4248 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4249 case "${cross_prefix:-$cc}" in
4250 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4251 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4252 __asm__ (".eabi_attribute 28, 1");
4253 int main(void) { return 0; }
4254 EOF
4255 esac
4256 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4257 fi
4258
4259 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4260 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4261 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4262 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4263 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4264 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4265
4266 [ $target_os = linux ] || [ $target_os = android ] ||
4267 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4268 $ARCH_EXT_LIST_ARM
4269
4270 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4271
4272 check_as <<EOF && enable as_dn_directive
4273 ra .dn d0.i16
4274 .unreq ra
4275 EOF
4276 check_as <<EOF && enable as_fpu_directive
4277 .fpu neon
4278 EOF
4279
4280 # llvm's integrated assembler supports .object_arch from llvm 3.5
4281 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4282 .object_arch armv4
4283 EOF
4284
4285 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4286
4287 elif enabled mips; then
4288
4289 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4290
4291 # make sure that only an instruction set is enabled
4292 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4293
4294 if enabled mips64; then
4295 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4296 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4297 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4298 else
4299 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4300 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4301 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4302 fi
4303
4304 elif enabled parisc; then
4305
4306 if enabled gcc; then
4307 case $($cc -dumpversion) in
4308 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4309 esac
4310 fi
4311
4312 elif enabled ppc; then
4313
4314 enable local_aligned_8 local_aligned_16 local_aligned_32
4315
4316 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4317 check_inline_asm ibm_asm '"add 0, 0, 0"'
4318 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4319 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4320
4321 # AltiVec flags: The FSF version of GCC differs from the Apple version
4322 if enabled altivec; then
4323 check_cflags -maltivec -mabi=altivec &&
4324 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4325 check_cflags -faltivec
4326
4327 # check if our compiler supports Motorola AltiVec C API
4328 check_cc <<EOF || disable altivec
4329 $inc_altivec_h
4330 int main(void) {
4331 vector signed int v1 = (vector signed int) { 0 };
4332 vector signed int v2 = (vector signed int) { 1 };
4333 v1 = vec_add(v1, v2);
4334 return 0;
4335 }
4336 EOF
4337
4338 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4339 fi
4340
4341 if enabled vsx; then
4342 check_cflags -mvsx &&
4343 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4344 fi
4345
4346 if enabled power8; then
4347 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4348 fi
4349
4350 elif enabled x86; then
4351
4352 check_builtin rdtsc intrin.h "__rdtsc()"
4353 check_builtin mm_empty mmintrin.h "_mm_empty()"
4354
4355 enable local_aligned_8 local_aligned_16 local_aligned_32
4356
4357 # check whether EBP is available on x86
4358 # As 'i' is stored on the stack, this program will crash
4359 # if the base pointer is used to access it because the
4360 # base pointer is cleared in the inline assembly code.
4361 check_exec_crash <<EOF && enable ebp_available
4362 volatile int i=0;
4363 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4364 return i;
4365 EOF
4366
4367 # check whether EBX is available on x86
4368 check_inline_asm ebx_available '""::"b"(0)' &&
4369 check_inline_asm ebx_available '"":::"%ebx"'
4370
4371 # check whether xmm clobbers are supported
4372 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4373
4374 # check whether binutils is new enough to compile SSSE3/MMXEXT
4375 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4376 enabled mmxext &&