examples/avcodec: split audio encoding into a separate example
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-pod2man do not build manual pages
117 --disable-texi2html do not build HTML documentation
118 --disable-avdevice disable libavdevice build
119 --disable-avcodec disable libavcodec build
120 --disable-avformat disable libavformat build
121 --disable-avutil disable libavutil build
122 --disable-swscale disable libswscale build
123 --disable-avfilter disable video filter support [no]
124 --disable-avresample disable libavresample build [no]
125 --disable-pthreads disable pthreads [auto]
126 --disable-w32threads disable Win32 threads [auto]
127 --disable-network disable network support [no]
128 --disable-dct disable DCT code
129 --disable-error-resilience disable error resilience code
130 --disable-lsp disable LSP code
131 --disable-lzo disable LZO decoder code
132 --disable-mdct disable MDCT code
133 --disable-rdft disable RDFT code
134 --disable-fft disable FFT code
135 --disable-faan disable floating point AAN (I)DCT code
136
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
173
174 External library support:
175
176 Using any of the following switches will allow Libav to link to the
177 corresponding external library. All the components depending on that library
178 will become enabled, if all their other dependencies are met and they are not
179 explicitly disabled. E.g. --enable-libwavpack will enable linking to
180 libwavpack and allow the libwavpack encoder to be built, unless it is
181 specifically disabled with --disable-encoder=libwavpack.
182
183 Note that only the system libraries are auto-detected. All the other external
184 libraries must be explicitly enabled.
185
186 Also note that the following help text describes the purpose of the libraries
187 themselves, not all their features will necessarily be usable by Libav.
188
189 --enable-avisynth video frameserver
190 --enable-bzlib bzip2 compression [autodetect]
191 --enable-frei0r video filtering plugins
192 --enable-gnutls crypto
193 --enable-libbs2b Bauer stereophonic-to-binaural DSP
194 --enable-libcdio audio CD input
195 --enable-libdc1394 IEEE 1394/Firewire camera input
196 --enable-libdcadec DCA audio decoding
197 --enable-libfaac AAC audio encoding
198 --enable-libfdk-aac AAC audio encoding/decoding
199 --enable-libfontconfig font configuration and management
200 --enable-libfreetype font rendering
201 --enable-libgsm GSM audio encoding/decoding
202 --enable-libhdcd HDCD decoding filter
203 --enable-libilbc ILBC audio encoding/decoding
204 --enable-libkvazaar HEVC video encoding
205 --enable-libmp3lame MP3 audio encoding
206 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
207 --enable-libopencore-amrwb AMR-WB audio decoding
208 --enable-libopencv computer vision
209 --enable-libopenh264 H.264 video encoding/decoding
210 --enable-libopenjpeg JPEG 2000 image encoding/decoding
211 --enable-libopus Opus audio encoding/decoding
212 --enable-libpulse Pulseaudio sound server
213 --enable-librtmp RTMP streaming
214 --enable-libschroedinger Dirac video encoding/decoding
215 --enable-libsnappy snappy compression
216 --enable-libspeex Speex audio encoding/decoding
217 --enable-libtheora Theora video encoding/decoding
218 --enable-libtwolame MP2 audio encoding
219 --enable-libvo-aacenc AAC audio encoding
220 --enable-libvo-amrwbenc AMR-WB audio encoding
221 --enable-libvorbis Vorbis audio encoding/decoding
222 --enable-libvpx VP* video encoding/decoding
223 --enable-libwavpack Wavpack audio encoding/decoding
224 --enable-libwebp WebP image encoding/decoding
225 --enable-libx264 H.264 video encoding
226 --enable-libx265 HEVC video encoding
227 --enable-libxavs Chinese AVS video encoding
228 --enable-libxcb X window system protocol communication
229 --enable-libxcb-shm X11 shm communication [auto]
230 --enable-libxcb-xfixes X11 mouse rendering [auto]
231 --enable-libxvid MPEG-4 ASP video encoding
232 --enable-openssl crypto
233 --enable-zlib compression [autodetect]
234
235 The following libraries provide various hardware acceleration features:
236 --enable-cuda Nvidia CUDA (dynamically linked)
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
248
249 Toolchain options:
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
262 --nm=NM use nm tool
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-libs=ELIBS add ELIBS [$ELIBS]
283 --extra-version=STRING version string suffix []
284 --optflags=OPTFLAGS override optimization-related compiler flags
285 --build-suffix=SUFFIX library name suffix []
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-yasm disable use of nasm/yasm assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --enable-random randomly enable/disable components
341 --disable-random
342 --enable-random=LIST randomly enable/disable specific components or
343 --disable-random=LIST component groups. LIST is a comma-separated list
344 of NAME[:PROB] entries where NAME is a component
345 (group) and PROB the probability associated with
346 NAME (default 0.5).
347 --random-seed=VALUE seed value for --enable/disable-random
348 --disable-valgrind-backtrace do not print a backtrace under Valgrind
349 (only applies to --disable-optimizations builds)
350
351 NOTE: Object files are built at the place where configure is launched.
352 EOF
353 exit 0
354 }
355
356 quotes='""'
357
358 log(){
359 echo "$@" >> $logfile
360 }
361
362 log_file(){
363 log BEGIN $1
364 i=1
365 while read line; do
366 printf '%5s %s\n' "${i}" "${line}"
367 i=$(($i+1))
368 done < $1 >> $logfile
369 log END $1
370 }
371
372 echolog(){
373 log "$@"
374 echo "$@"
375 }
376
377 warn(){
378 log "WARNING: $*"
379 WARNINGS="${WARNINGS}WARNING: $*\n"
380 }
381
382 die(){
383 echolog "$@"
384 cat <<EOF
385
386 If you think configure made a mistake, make sure you are using the latest
387 version from Git. If the latest version fails, report the problem to the
388 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
389 EOF
390 if disabled logging; then
391 cat <<EOF
392 Rerun configure with logging enabled (do not use --disable-logging), and
393 include the log this produces with your report.
394 EOF
395 else
396 cat <<EOF
397 Include the log file "$logfile" produced by configure as this will help
398 solving the problem.
399 EOF
400 fi
401 exit 1
402 }
403
404 # Avoid locale weirdness, besides we really just want to translate ASCII.
405 toupper(){
406 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
407 }
408
409 tolower(){
410 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
411 }
412
413 c_escape(){
414 echo "$*" | sed 's/["\\]/\\\0/g'
415 }
416
417 sh_quote(){
418 v=$(echo "$1" | sed "s/'/'\\\\''/g")
419 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
420 echo "$v"
421 }
422
423 cleanws(){
424 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
425 }
426
427 filter(){
428 pat=$1
429 shift
430 for v; do
431 eval "case $v in $pat) echo $v ;; esac"
432 done
433 }
434
435 filter_out(){
436 pat=$1
437 shift
438 for v; do
439 eval "case $v in $pat) ;; *) echo $v ;; esac"
440 done
441 }
442
443 map(){
444 m=$1
445 shift
446 for v; do eval $m; done
447 }
448
449 add_suffix(){
450 suffix=$1
451 shift
452 for v; do echo ${v}${suffix}; done
453 }
454
455 set_all(){
456 value=$1
457 shift
458 for var in $*; do
459 eval $var=$value
460 done
461 }
462
463 set_weak(){
464 value=$1
465 shift
466 for var; do
467 eval : \${$var:=$value}
468 done
469 }
470
471 sanitize_var_name(){
472 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
473 }
474
475 set_safe(){
476 var=$1
477 shift
478 eval $(sanitize_var_name "$var")='$*'
479 }
480
481 get_safe(){
482 eval echo \$$(sanitize_var_name "$1")
483 }
484
485 pushvar(){
486 for pvar in $*; do
487 eval level=\${${pvar}_level:=0}
488 eval ${pvar}_${level}="\$$pvar"
489 eval ${pvar}_level=$(($level+1))
490 done
491 }
492
493 popvar(){
494 for pvar in $*; do
495 eval level=\${${pvar}_level:-0}
496 test $level = 0 && continue
497 eval level=$(($level-1))
498 eval $pvar="\${${pvar}_${level}}"
499 eval ${pvar}_level=$level
500 eval unset ${pvar}_${level}
501 done
502 }
503
504 enable(){
505 set_all yes $*
506 }
507
508 disable(){
509 set_all no $*
510 }
511
512 enable_weak(){
513 set_weak yes $*
514 }
515
516 disable_weak(){
517 set_weak no $*
518 }
519
520 enable_safe(){
521 for var; do
522 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523 done
524 }
525
526 disable_safe(){
527 for var; do
528 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 done
530 }
531
532 do_enable_deep(){
533 for var; do
534 enabled $var && continue
535 eval sel="\$${var}_select"
536 eval sgs="\$${var}_suggest"
537 pushvar var sgs
538 enable_deep $sel
539 popvar sgs
540 enable_deep_weak $sgs
541 popvar var
542 done
543 }
544
545 enable_deep(){
546 do_enable_deep $*
547 enable $*
548 }
549
550 enable_deep_weak(){
551 for var; do
552 disabled $var && continue
553 pushvar var
554 do_enable_deep $var
555 popvar var
556 enable_weak $var
557 done
558 }
559
560 enabled(){
561 test "${1#!}" = "$1" && op== || op=!=
562 eval test "x\$${1#!}" $op "xyes"
563 }
564
565 disabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xno"
568 }
569
570 enabled_all(){
571 for opt; do
572 enabled $opt || return 1
573 done
574 }
575
576 disabled_all(){
577 for opt; do
578 disabled $opt || return 1
579 done
580 }
581
582 enabled_any(){
583 for opt; do
584 enabled $opt && return 0
585 done
586 }
587
588 disabled_any(){
589 for opt; do
590 disabled $opt && return 0
591 done
592 return 1
593 }
594
595 set_default(){
596 for opt; do
597 eval : \${$opt:=\$${opt}_default}
598 done
599 }
600
601 is_in(){
602 value=$1
603 shift
604 for var in $*; do
605 [ $var = $value ] && return 0
606 done
607 return 1
608 }
609
610 do_check_deps(){
611 for cfg; do
612 cfg="${cfg#!}"
613 enabled ${cfg}_checking && die "Circular dependency for $cfg."
614 disabled ${cfg}_checking && continue
615 enable ${cfg}_checking
616 append allopts $cfg
617
618 eval dep_all="\$${cfg}_deps"
619 eval dep_any="\$${cfg}_deps_any"
620 eval dep_sel="\$${cfg}_select"
621 eval dep_sgs="\$${cfg}_suggest"
622 eval dep_ifa="\$${cfg}_if"
623 eval dep_ifn="\$${cfg}_if_any"
624
625 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
627 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
628
629 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
630 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
631 enabled_all $dep_all || disable $cfg
632 enabled_any $dep_any || disable $cfg
633 disabled_any $dep_sel && disable $cfg
634
635 if enabled $cfg; then
636 enable_deep $dep_sel
637 enable_deep_weak $dep_sgs
638 fi
639
640 disable ${cfg}_checking
641 done
642 }
643
644 check_deps(){
645 unset allopts
646
647 do_check_deps "$@"
648
649 for cfg in $allopts; do
650 enabled $cfg || continue
651 eval dep_extralibs="\$${cfg}_extralibs"
652 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
653 done
654 }
655
656 print_config(){
657 pfx=$1
658 files=$2
659 shift 2
660 map 'eval echo "$v \${$v:-no}"' "$@" |
661 awk "BEGIN { split(\"$files\", files) }
662 {
663 c = \"$pfx\" toupper(\$1);
664 v = \$2;
665 sub(/yes/, 1, v);
666 sub(/no/, 0, v);
667 for (f in files) {
668 file = files[f];
669 if (file ~ /\\.h\$/) {
670 printf(\"#define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.asm\$/) {
672 printf(\"%%define %s %d\\n\", c, v) >>file;
673 } else if (file ~ /\\.mak\$/) {
674 n = -v ? \"\" : \"!\";
675 printf(\"%s%s=yes\\n\", n, c) >>file;
676 }
677 }
678 }"
679 }
680
681 print_enabled(){
682 suf=$1
683 shift
684 for v; do
685 enabled $v && printf "%s\n" ${v%$suf}
686 done
687 }
688
689 append(){
690 var=$1
691 shift
692 eval "$var=\"\$$var $*\""
693 }
694
695 prepend(){
696 var=$1
697 shift
698 eval "$var=\"$* \$$var\""
699 }
700
701 unique(){
702 var=$1
703 uniq_list=""
704 for tok in $(eval echo \$$var); do
705 uniq_list="$(filter_out $tok $uniq_list) $tok"
706 done
707 eval "$var=\"${uniq_list}\""
708 }
709
710 add_cppflags(){
711 append CPPFLAGS "$@"
712 }
713
714 add_cflags(){
715 append CFLAGS $($cflags_filter "$@")
716 }
717
718 add_asflags(){
719 append ASFLAGS $($asflags_filter "$@")
720 }
721
722 add_objcflags(){
723 append OBJCFLAGS $($objcflags_filter "$@")
724 }
725
726 add_ldflags(){
727 append LDFLAGS $($ldflags_filter "$@")
728 }
729
730 add_ldexeflags(){
731 append LDEXEFLAGS $($ldflags_filter "$@")
732 }
733
734 add_stripflags(){
735 append STRIPFLAGS "$@"
736 }
737
738 add_extralibs(){
739 prepend extralibs $($ldflags_filter "$@")
740 }
741
742 add_host_cppflags(){
743 append host_cppflags "$@"
744 }
745
746 add_host_cflags(){
747 append host_cflags $($host_cflags_filter "$@")
748 }
749
750 add_host_ldflags(){
751 append host_ldflags $($host_ldflags_filter "$@")
752 }
753
754 add_compat(){
755 append compat_objs $1
756 shift
757 map 'add_cppflags -D$v' "$@"
758 }
759
760 check_cmd(){
761 log "$@"
762 "$@" >> $logfile 2>&1
763 }
764
765 cc_o(){
766 eval printf '%s\\n' $CC_O
767 }
768
769 cc_e(){
770 eval printf '%s\\n' $CC_E
771 }
772
773 check_cc(){
774 log check_cc "$@"
775 cat > $TMPC
776 log_file $TMPC
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
778 }
779
780 check_objcc(){
781 log check_objcc "$@"
782 cat > $TMPC
783 log_file $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
785 }
786
787 check_cpp(){
788 log check_cpp "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
792 }
793
794 as_o(){
795 eval printf '%s\\n' $AS_O
796 }
797
798 check_as(){
799 log check_as "$@"
800 cat > $TMPS
801 log_file $TMPS
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
803 }
804
805 check_inline_asm(){
806 log check_inline_asm "$@"
807 name="$1"
808 code="$2"
809 shift 2
810 disable $name
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
813 EOF
814 }
815
816 check_insn(){
817 log check_insn "$@"
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
820 }
821
822 check_yasm(){
823 log check_yasm "$@"
824 echo "$1" > $TMPS
825 log_file $TMPS
826 shift 1
827 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
828 }
829
830 ld_o(){
831 eval printf '%s\\n' $LD_O
832 }
833
834 check_ld(){
835 log check_ld "$@"
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
842 }
843
844 print_include(){
845 hdr=$1
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
849 }
850
851 check_code(){
852 log check_code "$@"
853 check=$1
854 headers=$2
855 code=$3
856 shift 3
857 {
858 for hdr in $headers; do
859 print_include $hdr
860 done
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
863 }
864
865 check_cppflags(){
866 log check_cppflags "$@"
867 check_cc "$@" <<EOF && append CPPFLAGS "$@"
868 int x;
869 EOF
870 }
871
872 test_cflags(){
873 log test_cflags "$@"
874 set -- $($cflags_filter "$@")
875 check_cc "$@" <<EOF
876 int x;
877 EOF
878 }
879
880 check_cflags(){
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
883 }
884
885 test_objcflags(){
886 log test_cflags "$@"
887 set -- $($cflags_filter "$@")
888 check_objcc "$@" <<EOF
889 int x;
890 EOF
891 }
892
893 check_objcflags(){
894 log check_cflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
896 }
897
898 test_ldflags(){
899 log test_ldflags "$@"
900 check_ld "$@" <<EOF
901 int main(void){ return 0; }
902 EOF
903 }
904
905 check_ldflags(){
906 log check_ldflags "$@"
907 test_ldflags "$@" && add_ldflags "$@"
908 }
909
910 test_stripflags(){
911 log test_stripflags "$@"
912 # call check_cc to get a fresh TMPO
913 check_cc <<EOF
914 int main(void) { return 0; }
915 EOF
916 check_cmd $strip $STRIPFLAGS "$@" $TMPO
917 }
918
919 check_stripflags(){
920 log check_stripflags "$@"
921 test_stripflags "$@" && add_stripflags "$@"
922 }
923
924 check_header(){
925 log check_header "$@"
926 header=$1
927 shift
928 disable_safe $header
929 check_cpp "$@" <<EOF && enable_safe $header
930 #include <$header>
931 int x;
932 EOF
933 }
934
935 check_func(){
936 log check_func "$@"
937 func=$1
938 shift
939 disable $func
940 check_ld "$@" <<EOF && enable $func
941 extern int $func();
942 int main(void){ $func(); }
943 EOF
944 }
945
946 check_mathfunc(){
947 log check_mathfunc "$@"
948 func=$1
949 narg=$2
950 shift 2
951 test $narg = 2 && args="f, g" || args="f"
952 disable $func
953 check_ld "$@" <<EOF && enable $func
954 #include <math.h>
955 float foo(float f, float g) { return $func($args); }
956 int main(void){ return 0; }
957 EOF
958 }
959
960 check_func_headers(){
961 log check_func_headers "$@"
962 headers=$1
963 funcs=$2
964 shift 2
965 {
966 for hdr in $headers; do
967 print_include $hdr
968 done
969 for func in $funcs; do
970 echo "long check_$func(void) { return (long) $func; }"
971 done
972 echo "int main(void) { return 0; }"
973 } | check_ld "$@" && enable $funcs && enable_safe $headers
974 }
975
976 check_cpp_condition(){
977 log check_cpp_condition "$@"
978 header=$1
979 condition=$2
980 shift 2
981 check_cpp "$@" <<EOF
982 #include <$header>
983 #if !($condition)
984 #error "unsatisfied condition: $condition"
985 #endif
986 EOF
987 }
988
989 test_cflags_cpp(){
990 log test_cflags_cpp "$@"
991 flags=$1
992 condition=$2
993 shift 2
994 set -- $($cflags_filter "$flags")
995 check_cpp "$@" <<EOF
996 #if !($condition)
997 #error "unsatisfied condition: $condition"
998 #endif
999 EOF
1000 }
1001
1002 check_lib(){
1003 log check_lib "$@"
1004 headers="$1"
1005 funcs="$2"
1006 shift 2
1007 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1008 }
1009
1010 check_pkg_config(){
1011 log check_pkg_config "$@"
1012 pkg="$1"
1013 headers="$2"
1014 funcs="$3"
1015 shift 3
1016 check_cmd $pkg_config --exists --print-errors $pkg || return
1017 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1018 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1019 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1020 set_safe "${pkg}_cflags" $pkg_cflags &&
1021 set_safe "${pkg}_libs" $pkg_libs
1022 }
1023
1024 check_exec(){
1025 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1026 }
1027
1028 check_exec_crash(){
1029 code=$(cat)
1030
1031 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1032 # are safe but may not be available everywhere. Thus we use
1033 # raise(SIGTERM) instead. The check is run in a subshell so we
1034 # can redirect the "Terminated" message from the shell. SIGBUS
1035 # is not defined by standard C so it is used conditionally.
1036
1037 (check_exec "$@") >> $logfile 2>&1 <<EOF
1038 #include <signal.h>
1039 static void sighandler(int sig){
1040 raise(SIGTERM);
1041 }
1042 int foo(void){
1043 $code
1044 }
1045 int (*func_ptr)(void) = foo;
1046 int main(void){
1047 signal(SIGILL, sighandler);
1048 signal(SIGFPE, sighandler);
1049 signal(SIGSEGV, sighandler);
1050 #ifdef SIGBUS
1051 signal(SIGBUS, sighandler);
1052 #endif
1053 return func_ptr();
1054 }
1055 EOF
1056 }
1057
1058 check_type(){
1059 log check_type "$@"
1060 headers=$1
1061 type=$2
1062 shift 2
1063 disable_safe "$type"
1064 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1065 }
1066
1067 check_struct(){
1068 log check_struct "$@"
1069 headers=$1
1070 struct=$2
1071 member=$3
1072 shift 3
1073 disable_safe "${struct}_${member}"
1074 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1075 enable_safe "${struct}_${member}"
1076 }
1077
1078 check_builtin(){
1079 log check_builtin "$@"
1080 name=$1
1081 headers=$2
1082 builtin=$3
1083 shift 3
1084 disable "$name"
1085 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1086 }
1087
1088 check_compile_assert(){
1089 log check_compile_assert "$@"
1090 name=$1
1091 headers=$2
1092 condition=$3
1093 shift 3
1094 disable "$name"
1095 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1096 }
1097
1098 require(){
1099 name="$1"
1100 headers="$2"
1101 func="$3"
1102 shift 3
1103 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1104 }
1105
1106 require_pkg_config(){
1107 pkg="$1"
1108 check_pkg_config "$@" || die "ERROR: $pkg not found"
1109 add_cflags $(get_safe "${pkg}_cflags")
1110 add_extralibs $(get_safe "${pkg}_libs")
1111 }
1112
1113 hostcc_e(){
1114 eval printf '%s\\n' $HOSTCC_E
1115 }
1116
1117 hostcc_o(){
1118 eval printf '%s\\n' $HOSTCC_O
1119 }
1120
1121 check_host_cc(){
1122 log check_host_cc "$@"
1123 cat > $TMPC
1124 log_file $TMPC
1125 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1126 }
1127
1128 check_host_cpp(){
1129 log check_host_cpp "$@"
1130 cat > $TMPC
1131 log_file $TMPC
1132 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1133 }
1134
1135 check_host_cppflags(){
1136 log check_host_cppflags "$@"
1137 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1138 int x;
1139 EOF
1140 }
1141
1142 check_host_cflags(){
1143 log check_host_cflags "$@"
1144 set -- $($host_cflags_filter "$@")
1145 check_host_cc "$@" <<EOF && append host_cflags "$@"
1146 int x;
1147 EOF
1148 }
1149
1150 check_host_cpp_condition(){
1151 log check_host_cpp_condition "$@"
1152 header=$1
1153 condition=$2
1154 shift 2
1155 check_host_cpp "$@" <<EOF
1156 #include <$header>
1157 #if !($condition)
1158 #error "unsatisfied condition: $condition"
1159 #endif
1160 EOF
1161 }
1162
1163 apply(){
1164 file=$1
1165 shift
1166 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1167 }
1168
1169 cp_if_changed(){
1170 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1171 mkdir -p "$(dirname $2)"
1172 $cp_f "$1" "$2"
1173 }
1174
1175 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1176 # system-dependent things.
1177
1178 AVCODEC_COMPONENTS="
1179 bsfs
1180 decoders
1181 encoders
1182 hwaccels
1183 parsers
1184 "
1185
1186 AVDEVICE_COMPONENTS="
1187 indevs
1188 outdevs
1189 "
1190 AVFILTER_COMPONENTS="
1191 filters
1192 "
1193 AVFORMAT_COMPONENTS="
1194 demuxers
1195 muxers
1196 protocols
1197 "
1198
1199 AVRESAMPLE_COMPONENTS=""
1200 AVUTIL_COMPONENTS=""
1201
1202 COMPONENT_LIST="
1203 $AVCODEC_COMPONENTS
1204 $AVDEVICE_COMPONENTS
1205 $AVFILTER_COMPONENTS
1206 $AVFORMAT_COMPONENTS
1207 $AVRESAMPLE_COMPONENTS
1208 $AVUTIL_COMPONENTS
1209 "
1210
1211 EXAMPLE_LIST="
1212 avcodec_example
1213 encode_audio_example
1214 filter_audio_example
1215 metadata_example
1216 output_example
1217 qsvdec_example
1218 transcode_aac_example
1219 "
1220
1221 HWACCEL_LIBRARY_NONFREE_LIST="
1222 cuda
1223 libnpp
1224 "
1225 HWACCEL_LIBRARY_LIST="
1226 $HWACCEL_LIBRARY_NONFREE_LIST
1227 d3d11va
1228 dxva2
1229 libmfx
1230 mmal
1231 nvenc
1232 omx
1233 vaapi
1234 vda
1235 vdpau
1236 "
1237
1238 EXTERNAL_LIBRARY_GPL_LIST="
1239 libcdio
1240 libx264
1241 libx265
1242 libxavs
1243 libxvid
1244 "
1245
1246 EXTERNAL_LIBRARY_NONFREE_LIST="
1247 libfaac
1248 libfdk_aac
1249 openssl
1250 "
1251
1252 EXTERNAL_LIBRARY_VERSION3_LIST="
1253 libopencore_amrnb
1254 libopencore_amrwb
1255 libvo_aacenc
1256 libvo_amrwbenc
1257 "
1258
1259 EXTERNAL_LIBRARY_LIST="
1260 $EXTERNAL_LIBRARY_GPL_LIST
1261 $EXTERNAL_LIBRARY_NONFREE_LIST
1262 $EXTERNAL_LIBRARY_VERSION3_LIST
1263 avisynth
1264 bzlib
1265 frei0r
1266 gnutls
1267 libbs2b
1268 libdc1394
1269 libdcadec
1270 libfontconfig
1271 libfreetype
1272 libgsm
1273 libhdcd
1274 libilbc
1275 libkvazaar
1276 libmp3lame
1277 libopencv
1278 libopenh264
1279 libopenjpeg
1280 libopus
1281 libpulse
1282 librtmp
1283 libschroedinger
1284 libsnappy
1285 libspeex
1286 libtheora
1287 libtwolame
1288 libvorbis
1289 libvpx
1290 libwavpack
1291 libwebp
1292 libxcb
1293 libxcb_shm
1294 libxcb_xfixes
1295 zlib
1296 "
1297
1298 FEATURE_LIST="
1299 gray
1300 hardcoded_tables
1301 omx_rpi
1302 runtime_cpudetect
1303 safe_bitstream_reader
1304 shared
1305 small
1306 sram
1307 static
1308 swscale_alpha
1309 "
1310
1311 LIBRARY_LIST="
1312 avcodec
1313 avdevice
1314 avfilter
1315 avformat
1316 avresample
1317 avutil
1318 swscale
1319 "
1320
1321 LICENSE_LIST="
1322 gpl
1323 nonfree
1324 version3
1325 "
1326
1327 PROGRAM_LIST="
1328 avconv
1329 avplay
1330 avprobe
1331 "
1332
1333 SUBSYSTEM_LIST="
1334 dct
1335 doc
1336 error_resilience
1337 faan
1338 fft
1339 lsp
1340 lzo
1341 mdct
1342 network
1343 rdft
1344 "
1345
1346 CONFIG_LIST="
1347 $COMPONENT_LIST
1348 $EXAMPLE_LIST
1349 $EXTERNAL_LIBRARY_LIST
1350 $HWACCEL_LIBRARY_LIST
1351 $FEATURE_LIST
1352 $LICENSE_LIST
1353 $LIBRARY_LIST
1354 $PROGRAM_LIST
1355 $SUBSYSTEM_LIST
1356 neon_clobber_test
1357 pic
1358 pod2man
1359 texi2html
1360 thumb
1361 valgrind_backtrace
1362 xmm_clobber_test
1363 "
1364
1365 THREADS_LIST="
1366 pthreads
1367 w32threads
1368 "
1369
1370 ATOMICS_LIST="
1371 atomics_gcc
1372 atomics_suncc
1373 atomics_win32
1374 "
1375
1376 ARCH_LIST="
1377 aarch64
1378 alpha
1379 arm
1380 avr32
1381 avr32_ap
1382 avr32_uc
1383 bfin
1384 ia64
1385 m68k
1386 mips
1387 mips64
1388 parisc
1389 ppc
1390 ppc64
1391 s390
1392 sh4
1393 sparc
1394 sparc64
1395 tilegx
1396 tilepro
1397 tomi
1398 x86
1399 x86_32
1400 x86_64
1401 "
1402
1403 ARCH_EXT_LIST_ARM="
1404 armv5te
1405 armv6
1406 armv6t2
1407 armv8
1408 neon
1409 vfp
1410 vfpv3
1411 "
1412
1413 ARCH_EXT_LIST_X86_SIMD="
1414 amd3dnow
1415 amd3dnowext
1416 avx
1417 avx2
1418 fma3
1419 fma4
1420 mmx
1421 mmxext
1422 sse
1423 sse2
1424 sse3
1425 sse4
1426 sse42
1427 ssse3
1428 xop
1429 "
1430
1431 ARCH_EXT_LIST_PPC="
1432 altivec
1433 dcbzl
1434 ldbrx
1435 power8
1436 ppc4xx
1437 vsx
1438 "
1439
1440 ARCH_EXT_LIST_X86="
1441 $ARCH_EXT_LIST_X86_SIMD
1442 cpunop
1443 i686
1444 "
1445
1446 ARCH_EXT_LIST_MIPS="
1447 loongson
1448 mips32r1
1449 mips64r1
1450 mips32r2
1451 mips64r2
1452 mips32r6
1453 mips64r6
1454 "
1455
1456 ARCH_EXT_LIST="
1457 $ARCH_EXT_LIST_ARM
1458 $ARCH_EXT_LIST_MIPS
1459 $ARCH_EXT_LIST_PPC
1460 $ARCH_EXT_LIST_X86
1461 vis
1462 "
1463
1464 ARCH_FEATURES="
1465 aligned_stack
1466 fast_64bit
1467 fast_clz
1468 fast_cmov
1469 local_aligned_8
1470 local_aligned_16
1471 local_aligned_32
1472 simd_align_16
1473 simd_align_32
1474 "
1475
1476 BUILTIN_LIST="
1477 atomic_cas_ptr
1478 machine_rw_barrier
1479 MemoryBarrier
1480 mm_empty
1481 rdtsc
1482 sem_timedwait
1483 sync_val_compare_and_swap
1484 "
1485 HAVE_LIST_CMDLINE="
1486 inline_asm
1487 symver
1488 yasm
1489 "
1490
1491 HAVE_LIST_PUB="
1492 bigendian
1493 fast_unaligned
1494 "
1495
1496 HEADERS_LIST="
1497 AVFoundation_AVFoundation_h
1498 alsa_asoundlib_h
1499 altivec_h
1500 arpa_inet_h
1501 cdio_paranoia_h
1502 cdio_paranoia_paranoia_h
1503 dispatch_dispatch_h
1504 dev_bktr_ioctl_bt848_h
1505 dev_bktr_ioctl_meteor_h
1506 dev_ic_bt8xx_h
1507 dev_video_bktr_ioctl_bt848_h
1508 dev_video_meteor_ioctl_meteor_h
1509 direct_h
1510 dlfcn_h
1511 d3d11_h
1512 dxva_h
1513 gsm_h
1514 io_h
1515 mach_mach_time_h
1516 machine_ioctl_bt848_h
1517 machine_ioctl_meteor_h
1518 malloc_h
1519 poll_h
1520 sndio_h
1521 soundcard_h
1522 stdatomic_h
1523 sys_mman_h
1524 sys_param_h
1525 sys_resource_h
1526 sys_select_h
1527 sys_soundcard_h
1528 sys_time_h
1529 sys_un_h
1530 sys_videoio_h
1531 unistd_h
1532 valgrind_valgrind_h
1533 windows_h
1534 winsock2_h
1535 "
1536
1537 INTRINSICS_LIST="
1538 intrinsics_neon
1539 "
1540
1541 MATH_FUNCS="
1542 atanf
1543 atan2f
1544 cbrtf
1545 cosf
1546 exp2
1547 exp2f
1548 expf
1549 isinf
1550 isnan
1551 ldexpf
1552 llrint
1553 llrintf
1554 log2
1555 log2f
1556 log10f
1557 lrint
1558 lrintf
1559 powf
1560 rint
1561 round
1562 roundf
1563 sinf
1564 trunc
1565 truncf
1566 "
1567
1568 SYSTEM_FUNCS="
1569 aligned_malloc
1570 clock_gettime
1571 closesocket
1572 CommandLineToArgvW
1573 CoTaskMemFree
1574 CryptGenRandom
1575 dlopen
1576 fcntl
1577 flt_lim
1578 fork
1579 getaddrinfo
1580 gethrtime
1581 getopt
1582 GetProcessAffinityMask
1583 GetProcessMemoryInfo
1584 GetProcessTimes
1585 getrusage
1586 GetSystemTimeAsFileTime
1587 gettimeofday
1588 gmtime_r
1589 inet_aton
1590 isatty
1591 jack_port_get_latency_range
1592 LoadLibrary
1593 localtime_r
1594 mach_absolute_time
1595 MapViewOfFile
1596 memalign
1597 mkstemp
1598 mmap
1599 mprotect
1600 nanosleep
1601 posix_memalign
1602 sched_getaffinity
1603 SetConsoleTextAttribute
1604 setmode
1605 setrlimit
1606 Sleep
1607 strerror_r
1608 sysconf
1609 sysctl
1610 usleep
1611 VirtualAlloc
1612 "
1613
1614 TOOLCHAIN_FEATURES="
1615 as_dn_directive
1616 as_fpu_directive
1617 as_func
1618 as_object_arch
1619 asm_mod_q
1620 attribute_may_alias
1621 attribute_packed
1622 ebp_available
1623 ebx_available
1624 gnu_as
1625 ibm_asm
1626 inline_asm_labels
1627 pragma_deprecated
1628 symver_asm_label
1629 symver_gnu_asm
1630 vfp_args
1631 xform_asm
1632 xmm_clobbers
1633 "
1634
1635 TYPES_LIST="
1636 CONDITION_VARIABLE_Ptr
1637 socklen_t
1638 struct_addrinfo
1639 struct_group_source_req
1640 struct_ip_mreq_source
1641 struct_ipv6_mreq
1642 struct_pollfd
1643 struct_rusage_ru_maxrss
1644 struct_sockaddr_in6
1645 struct_sockaddr_sa_len
1646 struct_sockaddr_storage
1647 struct_v4l2_frmivalenum_discrete
1648 "
1649
1650 HAVE_LIST="
1651 $ARCH_EXT_LIST
1652 $(add_suffix _external $ARCH_EXT_LIST)
1653 $(add_suffix _inline $ARCH_EXT_LIST)
1654 $ARCH_FEATURES
1655 $BUILTIN_LIST
1656 $HAVE_LIST_CMDLINE
1657 $HAVE_LIST_PUB
1658 $HEADERS_LIST
1659 $INTRINSICS_LIST
1660 $MATH_FUNCS
1661 $SYSTEM_FUNCS
1662 $THREADS_LIST
1663 $TOOLCHAIN_FEATURES
1664 $TYPES_LIST
1665 dos_paths
1666 dxva2_lib
1667 libc_msvcrt
1668 libdc1394_1
1669 libdc1394_2
1670 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1671 sdl
1672 section_data_rel_ro
1673 threads
1674 vaapi_drm
1675 vaapi_x11
1676 vdpau_x11
1677 xlib
1678 "
1679
1680 # options emitted with CONFIG_ prefix but not available on the command line
1681 CONFIG_EXTRA="
1682 aandcttables
1683 ac3dsp
1684 audio_frame_queue
1685 audiodsp
1686 blockdsp
1687 bswapdsp
1688 cabac
1689 dirac_parse
1690 dvprofile
1691 faandct
1692 faanidct
1693 fdctdsp
1694 flacdsp
1695 fmtconvert
1696 g722dsp
1697 gcrypt
1698 gmp
1699 golomb
1700 gplv3
1701 h263dsp
1702 h264chroma
1703 h264dsp
1704 h264parse
1705 h264pred
1706 h264qpel
1707 hpeldsp
1708 huffman
1709 huffyuvdsp
1710 huffyuvencdsp
1711 idctdsp
1712 iirfilter
1713 imdct15
1714 intrax8
1715 iso_media
1716 ividsp
1717 jpegtables
1718 libx262
1719 lgplv3
1720 lpc
1721 lzf
1722 me_cmp
1723 mpeg_er
1724 mpegaudio
1725 mpegaudiodsp
1726 mpegvideo
1727 mpegvideoenc
1728 mss34dsp
1729 pixblockdsp
1730 qpeldsp
1731 qsv
1732 qsvdec
1733 qsvenc
1734 rangecoder
1735 riffdec
1736 riffenc
1737 rtpdec
1738 rtpenc_chain
1739 rv34dsp
1740 sinewin
1741 snappy
1742 srtp
1743 startcode
1744 texturedsp
1745 texturedspenc
1746 tpeldsp
1747 vaapi_encode
1748 vc1dsp
1749 videodsp
1750 vp3dsp
1751 vp56dsp
1752 vp8dsp
1753 wma_freqs
1754 wmv2dsp
1755 "
1756
1757 CMDLINE_SELECT="
1758 $ARCH_EXT_LIST
1759 $CONFIG_LIST
1760 $HAVE_LIST_CMDLINE
1761 $THREADS_LIST
1762 asm
1763 cross_compile
1764 debug
1765 extra_warnings
1766 logging
1767 lto
1768 optimizations
1769 rpath
1770 "
1771
1772 PATHS_LIST="
1773 bindir
1774 datadir
1775 docdir
1776 incdir
1777 libdir
1778 mandir
1779 prefix
1780 shlibdir
1781 "
1782
1783 CMDLINE_SET="
1784 $PATHS_LIST
1785 ar
1786 arch
1787 as
1788 build_suffix
1789 cc
1790 objcc
1791 cpu
1792 cross_prefix
1793 custom_allocator
1794 dep_cc
1795 env
1796 extra_version
1797 host_cc
1798 host_cflags
1799 host_ld
1800 host_ldflags
1801 host_libs
1802 host_os
1803 ld
1804 logfile
1805 malloc_prefix
1806 nm
1807 optflags
1808 pkg_config
1809 pkg_config_flags
1810 random_seed
1811 samples
1812 sysinclude
1813 sysroot
1814 target_exec
1815 target_os
1816 target_path
1817 target_samples
1818 toolchain
1819 "
1820
1821 CMDLINE_APPEND="
1822 extra_cflags
1823 extra_objcflags
1824 host_cppflags
1825 "
1826
1827 # code dependency declarations
1828
1829 # architecture extensions
1830
1831 armv5te_deps="arm"
1832 armv6_deps="arm"
1833 armv6t2_deps="arm"
1834 armv8_deps="aarch64"
1835 neon_deps_any="aarch64 arm"
1836 intrinsics_neon_deps="neon"
1837 vfp_deps_any="aarch64 arm"
1838 vfpv3_deps="vfp"
1839
1840 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1841
1842 altivec_deps="ppc"
1843 ppc4xx_deps="ppc"
1844 vsx_deps="altivec"
1845 power8_deps="vsx"
1846
1847 cpunop_deps="i686"
1848 x86_64_select="i686"
1849 x86_64_suggest="fast_cmov"
1850
1851 amd3dnow_deps="mmx"
1852 amd3dnowext_deps="amd3dnow"
1853 i686_deps="x86"
1854 mmx_deps="x86"
1855 mmxext_deps="mmx"
1856 sse_deps="mmxext"
1857 sse2_deps="sse"
1858 sse3_deps="sse2"
1859 ssse3_deps="sse3"
1860 sse4_deps="ssse3"
1861 sse42_deps="sse4"
1862 avx_deps="sse42"
1863 xop_deps="avx"
1864 fma3_deps="avx"
1865 fma4_deps="avx"
1866 avx2_deps="avx"
1867
1868 mmx_external_deps="yasm"
1869 mmx_inline_deps="inline_asm"
1870 mmx_suggest="mmx_external mmx_inline"
1871
1872 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1873 eval dep=\$${ext}_deps
1874 eval ${ext}_external_deps='"${dep}_external"'
1875 eval ${ext}_inline_deps='"${dep}_inline"'
1876 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1877 done
1878
1879 aligned_stack_if_any="aarch64 ppc x86"
1880 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1881 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1882 fast_unaligned_if_any="aarch64 ppc x86"
1883 simd_align_16_if_any="altivec neon sse"
1884 simd_align_32_if_any="avx"
1885
1886 # system capabilities
1887 symver_if_any="symver_asm_label symver_gnu_asm"
1888 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1889
1890 # threading support
1891 atomics_gcc_if="sync_val_compare_and_swap"
1892 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1893 atomics_win32_if="MemoryBarrier"
1894 atomics_native_if_any="$ATOMICS_LIST"
1895 w32threads_deps="atomics_native"
1896 threads_if_any="$THREADS_LIST"
1897
1898 # subsystems
1899 dct_select="rdft"
1900 dirac_parse_select="golomb"
1901 error_resilience_select="me_cmp"
1902 faandct_deps="faan fdctdsp"
1903 faanidct_deps="faan idctdsp"
1904 h264dsp_select="startcode"
1905 intrax8_select="blockdsp idctdsp"
1906 mdct_select="fft"
1907 rdft_select="fft"
1908 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1909 mpeg_er_select="error_resilience"
1910 mpegaudio_select="mpegaudiodsp"
1911 mpegaudiodsp_select="dct"
1912 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1913 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1914 vc1dsp_select="h264chroma qpeldsp startcode"
1915
1916 # decoders / encoders
1917 aac_decoder_select="imdct15 mdct sinewin"
1918 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1919 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1920 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1921 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1922 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 adpcm_g722_decoder_select="g722dsp"
1924 adpcm_g722_encoder_select="g722dsp"
1925 aic_decoder_select="golomb idctdsp"
1926 alac_encoder_select="lpc"
1927 als_decoder_select="bswapdsp"
1928 amrnb_decoder_select="lsp"
1929 amrwb_decoder_select="lsp"
1930 amv_decoder_select="sp5x_decoder"
1931 ape_decoder_select="bswapdsp"
1932 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1933 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1934 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1935 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1936 atrac1_decoder_select="mdct sinewin"
1937 atrac3_decoder_select="mdct"
1938 atrac3p_decoder_select="mdct sinewin"
1939 bink_decoder_select="blockdsp hpeldsp"
1940 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1941 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1942 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1943 cllc_decoder_select="bswapdsp"
1944 comfortnoise_encoder_select="lpc"
1945 cook_decoder_select="audiodsp mdct sinewin"
1946 cscd_decoder_select="lzo"
1947 cscd_decoder_suggest="zlib"
1948 dca_decoder_select="fmtconvert mdct"
1949 dds_decoder_select="texturedsp"
1950 dnxhd_decoder_select="blockdsp idctdsp"
1951 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1952 dvvideo_decoder_select="dvprofile idctdsp"
1953 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1954 dxa_decoder_deps="zlib"
1955 dxv_decoder_select="lzf texturedsp"
1956 eac3_decoder_select="ac3_decoder"
1957 eac3_encoder_select="ac3_encoder"
1958 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1959 eatgq_decoder_select="aandcttables idctdsp"
1960 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1961 exr_decoder_deps="zlib"
1962 ffv1_decoder_select="golomb rangecoder"
1963 ffv1_encoder_select="rangecoder"
1964 ffvhuff_decoder_select="huffyuv_decoder"
1965 ffvhuff_encoder_select="huffyuv_encoder"
1966 fic_decoder_select="golomb"
1967 flac_decoder_select="flacdsp golomb"
1968 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1969 flashsv_decoder_deps="zlib"
1970 flashsv_encoder_deps="zlib"
1971 flashsv2_decoder_deps="zlib"
1972 flv_decoder_select="h263_decoder"
1973 flv_encoder_select="h263_encoder"
1974 fourxm_decoder_select="blockdsp bswapdsp"
1975 fraps_decoder_select="bswapdsp huffman"
1976 g2m_decoder_deps="zlib"
1977 g2m_decoder_select="blockdsp idctdsp jpegtables"
1978 h261_decoder_select="mpeg_er mpegvideo"
1979 h261_encoder_select="aandcttables mpegvideoenc"
1980 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1981 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1982 h263i_decoder_select="h263_decoder"
1983 h263p_encoder_select="h263_encoder"
1984 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1985 h264_decoder_suggest="error_resilience"
1986 hap_decoder_select="snappy texturedsp"
1987 hap_encoder_deps="libsnappy"
1988 hap_encoder_select="texturedspenc"
1989 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1990 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1991 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1992 iac_decoder_select="imc_decoder"
1993 imc_decoder_select="bswapdsp fft mdct sinewin"
1994 indeo3_decoder_select="hpeldsp"
1995 indeo4_decoder_select="ividsp"
1996 indeo5_decoder_select="ividsp"
1997 interplay_video_decoder_select="hpeldsp"
1998 jpegls_decoder_select="golomb mjpeg_decoder"
1999 jpegls_encoder_select="golomb"
2000 jv_decoder_select="blockdsp"
2001 lagarith_decoder_select="huffyuvdsp"
2002 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2003 loco_decoder_select="golomb"
2004 magicyuv_decoder_select="huffyuvdsp"
2005 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2006 metasound_decoder_select="lsp mdct sinewin"
2007 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2008 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2009 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2010 mjpegb_decoder_select="mjpeg_decoder"
2011 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2012 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2013 mlp_decoder_select="mlp_parser"
2014 motionpixels_decoder_select="bswapdsp"
2015 mp1_decoder_select="mpegaudio"
2016 mp1float_decoder_select="mpegaudio"
2017 mp2_decoder_select="mpegaudio"
2018 mp2float_decoder_select="mpegaudio"
2019 mp3_decoder_select="mpegaudio"
2020 mp3adu_decoder_select="mpegaudio"
2021 mp3adufloat_decoder_select="mpegaudio"
2022 mp3float_decoder_select="mpegaudio"
2023 mp3on4_decoder_select="mpegaudio"
2024 mp3on4float_decoder_select="mpegaudio"
2025 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2026 mpc8_decoder_select="mpegaudiodsp"
2027 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2028 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2029 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2030 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2031 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2032 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2033 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2034 mpeg4_encoder_select="h263_encoder"
2035 msa1_decoder_select="mss34dsp"
2036 msmpeg4v1_decoder_select="h263_decoder"
2037 msmpeg4v2_decoder_select="h263_decoder"
2038 msmpeg4v2_encoder_select="h263_encoder"
2039 msmpeg4v3_decoder_select="h263_decoder"
2040 msmpeg4v3_encoder_select="h263_encoder"
2041 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2042 mts2_decoder_select="mss34dsp"
2043 mxpeg_decoder_select="mjpeg_decoder"
2044 nellymoser_decoder_select="mdct sinewin"
2045 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2046 nuv_decoder_select="idctdsp lzo"
2047 on2avc_decoder_select="mdct"
2048 opus_decoder_deps="avresample"
2049 opus_decoder_select="imdct15"
2050 png_decoder_deps="zlib"
2051 png_encoder_deps="zlib"
2052 png_encoder_select="huffyuvencdsp"
2053 prores_decoder_select="idctdsp"
2054 prores_encoder_select="fdctdsp"
2055 qcelp_decoder_select="lsp"
2056 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2057 ra_144_encoder_select="audio_frame_queue lpc"
2058 ralf_decoder_select="golomb"
2059 rscc_decoder_deps="zlib"
2060 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2061 rv10_encoder_select="h263_encoder"
2062 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2063 rv20_encoder_select="h263_encoder"
2064 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2065 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2066 screenpresso_decoder_deps="zlib"
2067 shorten_decoder_select="golomb"
2068 sipr_decoder_select="lsp"
2069 sp5x_decoder_select="mjpeg_decoder"
2070 svq1_decoder_select="hpeldsp"
2071 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2072 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2073 svq3_decoder_suggest="zlib"
2074 tak_decoder_select="audiodsp"
2075 tdsc_decoder_deps="zlib"
2076 tdsc_decoder_select="mjpeg_decoder"
2077 theora_decoder_select="vp3_decoder"
2078 thp_decoder_select="mjpeg_decoder"
2079 tiff_decoder_suggest="zlib"
2080 tiff_encoder_suggest="zlib"
2081 truehd_decoder_select="mlp_decoder"
2082 truemotion2_decoder_select="bswapdsp"
2083 truespeech_decoder_select="bswapdsp"
2084 tscc_decoder_deps="zlib"
2085 txd_decoder_select="texturedsp"
2086 twinvq_decoder_select="mdct lsp sinewin"
2087 utvideo_decoder_select="bswapdsp"
2088 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2089 vble_decoder_select="huffyuvdsp"
2090 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2091 vc1image_decoder_select="vc1_decoder"
2092 vorbis_decoder_select="mdct"
2093 vorbis_encoder_select="mdct"
2094 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2095 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2096 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2097 vp6a_decoder_select="vp6_decoder"
2098 vp6f_decoder_select="vp6_decoder"
2099 vp7_decoder_select="h264pred videodsp vp8dsp"
2100 vp8_decoder_select="h264pred videodsp vp8dsp"
2101 vp9_decoder_select="videodsp"
2102 webp_decoder_select="vp8_decoder"
2103 wmapro_decoder_select="mdct sinewin wma_freqs"
2104 wmav1_decoder_select="mdct sinewin wma_freqs"
2105 wmav1_encoder_select="mdct sinewin wma_freqs"
2106 wmav2_decoder_select="mdct sinewin wma_freqs"
2107 wmav2_encoder_select="mdct sinewin wma_freqs"
2108 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2109 wmv1_decoder_select="h263_decoder"
2110 wmv1_encoder_select="h263_encoder"
2111 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2112 wmv2_encoder_select="h263_encoder wmv2dsp"
2113 wmv3_decoder_select="vc1_decoder"
2114 wmv3image_decoder_select="wmv3_decoder"
2115 zerocodec_decoder_deps="zlib"
2116 zlib_decoder_deps="zlib"
2117 zlib_encoder_deps="zlib"
2118 zmbv_decoder_deps="zlib"
2119 zmbv_encoder_deps="zlib"
2120
2121 # hardware accelerators
2122 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2123 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2124 vaapi_deps="va_va_h"
2125 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2126 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2127 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2128
2129 h263_vaapi_hwaccel_deps="vaapi"
2130 h263_vaapi_hwaccel_select="h263_decoder"
2131 h264_d3d11va_hwaccel_deps="d3d11va"
2132 h264_d3d11va_hwaccel_select="h264_decoder"
2133 h264_dxva2_hwaccel_deps="dxva2"
2134 h264_dxva2_hwaccel_select="h264_decoder"
2135 h264_mmal_decoder_deps="mmal"
2136 h264_mmal_decoder_select="mmal"
2137 h264_mmal_hwaccel_deps="mmal"
2138 h264_omx_encoder_deps="omx"
2139 h264_qsv_hwaccel_deps="libmfx"
2140 h264_vaapi_hwaccel_deps="vaapi"
2141 h264_vaapi_hwaccel_select="h264_decoder"
2142 h264_vda_hwaccel_deps="vda"
2143 h264_vda_hwaccel_select="h264_decoder"
2144 h264_vda_old_hwaccel_deps="vda"
2145 h264_vda_old_hwaccel_select="h264_decoder"
2146 h264_vdpau_hwaccel_deps="vdpau"
2147 h264_vdpau_hwaccel_select="h264_decoder"
2148 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2149 hevc_d3d11va_hwaccel_select="hevc_decoder"
2150 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2151 hevc_dxva2_hwaccel_select="hevc_decoder"
2152 hevc_qsv_hwaccel_deps="libmfx"
2153 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2154 hevc_vdpau_hwaccel_select="hevc_decoder"
2155 mpeg1_vdpau_hwaccel_deps="vdpau"
2156 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2157 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2158 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2159 mpeg2_dxva2_hwaccel_deps="dxva2"
2160 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_mmal_decoder_deps="mmal"
2162 mpeg2_mmal_decoder_select="mmal"
2163 mpeg2_mmal_hwaccel_deps="mmal"
2164 mpeg2_qsv_hwaccel_deps="libmfx"
2165 mpeg2_vaapi_hwaccel_deps="vaapi"
2166 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2167 mpeg2_vdpau_hwaccel_deps="vdpau"
2168 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2169 mpeg4_omx_encoder_deps="omx"
2170 mpeg4_vaapi_hwaccel_deps="vaapi"
2171 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2172 mpeg4_vdpau_hwaccel_deps="vdpau"
2173 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2174 vc1_d3d11va_hwaccel_deps="d3d11va"
2175 vc1_d3d11va_hwaccel_select="vc1_decoder"
2176 vc1_dxva2_hwaccel_deps="dxva2"
2177 vc1_dxva2_hwaccel_select="vc1_decoder"
2178 vc1_mmal_decoder_deps="mmal"
2179 vc1_mmal_decoder_select="mmal"
2180 vc1_mmal_hwaccel_deps="mmal"
2181 vc1_vaapi_hwaccel_deps="vaapi"
2182 vc1_vaapi_hwaccel_select="vc1_decoder"
2183 vc1_vdpau_hwaccel_deps="vdpau"
2184 vc1_vdpau_hwaccel_select="vc1_decoder"
2185 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2186 vp8_vaapi_hwaccel_select="vp8_decoder"
2187 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2188 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2189 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2190 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2191
2192 # hardware-accelerated codecs
2193 nvenc_deps_any="dlopen LoadLibrary"
2194 nvenc_extralibs='$ldl'
2195 omx_deps="dlopen pthreads"
2196 omx_extralibs='$ldl'
2197 qsvdec_select="qsv"
2198 qsvenc_select="qsv"
2199 vaapi_encode_deps="vaapi"
2200
2201 hwupload_cuda_filter_deps="cuda"
2202 scale_npp_filter_deps="cuda libnpp"
2203
2204 h264_nvenc_encoder_deps="nvenc"
2205 h264_qsv_decoder_deps="libmfx"
2206 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2207 h264_qsv_encoder_deps="libmfx"
2208 h264_qsv_encoder_select="qsvenc"
2209 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2210 h264_vaapi_encoder_select="vaapi_encode golomb"
2211
2212 hevc_nvenc_encoder_deps="nvenc"
2213 hevc_qsv_decoder_deps="libmfx"
2214 hevc_qsv_encoder_deps="libmfx"
2215 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2216 hevc_qsv_encoder_select="qsvenc"
2217 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2218 hevc_vaapi_encoder_select="vaapi_encode golomb"
2219 mpeg2_qsv_decoder_deps="libmfx"
2220 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2221 mpeg2_qsv_encoder_deps="libmfx"
2222 mpeg2_qsv_encoder_select="qsvenc"
2223
2224 nvenc_h264_encoder_deps="nvenc"
2225 nvenc_hevc_encoder_deps="nvenc"
2226
2227 # parsers
2228 h264_parser_select="golomb h264dsp h264parse"
2229 hevc_parser_select="golomb"
2230 mpegvideo_parser_select="mpegvideo"
2231 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2232 vc1_parser_select="vc1dsp"
2233
2234 # bitstream_filters
2235 mjpeg2jpeg_bsf_select="jpegtables"
2236
2237 # external libraries
2238 libdcadec_decoder_deps="libdcadec"
2239 libfaac_encoder_deps="libfaac"
2240 libfaac_encoder_select="audio_frame_queue"
2241 libfdk_aac_decoder_deps="libfdk_aac"
2242 libfdk_aac_encoder_deps="libfdk_aac"
2243 libfdk_aac_encoder_select="audio_frame_queue"
2244 libgsm_decoder_deps="libgsm"
2245 libgsm_encoder_deps="libgsm"
2246 libgsm_ms_decoder_deps="libgsm"
2247 libgsm_ms_encoder_deps="libgsm"
2248 libilbc_decoder_deps="libilbc"
2249 libilbc_encoder_deps="libilbc"
2250 libkvazaar_encoder_deps="libkvazaar"
2251 libmp3lame_encoder_deps="libmp3lame"
2252 libmp3lame_encoder_select="audio_frame_queue"
2253 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2254 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2255 libopencore_amrnb_encoder_select="audio_frame_queue"
2256 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2257 libopenh264_decoder_deps="libopenh264"
2258 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2259 libopenh264_encoder_deps="libopenh264"
2260 libopenjpeg_decoder_deps="libopenjpeg"
2261 libopenjpeg_encoder_deps="libopenjpeg"
2262 libopus_decoder_deps="libopus"
2263 libopus_encoder_deps="libopus"
2264 libopus_encoder_select="audio_frame_queue"
2265 libschroedinger_decoder_deps="libschroedinger"
2266 libschroedinger_encoder_deps="libschroedinger"
2267 libspeex_decoder_deps="libspeex"
2268 libspeex_encoder_deps="libspeex"
2269 libspeex_encoder_select="audio_frame_queue"
2270 libtheora_encoder_deps="libtheora"
2271 libtwolame_encoder_deps="libtwolame"
2272 libvo_aacenc_encoder_deps="libvo_aacenc"
2273 libvo_aacenc_encoder_select="audio_frame_queue"
2274 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2275 libvorbis_encoder_deps="libvorbis"
2276 libvorbis_encoder_select="audio_frame_queue"
2277 libvpx_vp8_decoder_deps="libvpx"
2278 libvpx_vp8_encoder_deps="libvpx"
2279 libvpx_vp9_decoder_deps="libvpx"
2280 libvpx_vp9_encoder_deps="libvpx"
2281 libwavpack_encoder_deps="libwavpack"
2282 libwebp_encoder_deps="libwebp"
2283 libx262_encoder_deps="libx262"
2284 libx264_encoder_deps="libx264"
2285 libx265_encoder_deps="libx265"
2286 libxavs_encoder_deps="libxavs"
2287 libxvid_encoder_deps="libxvid"
2288
2289 # demuxers / muxers
2290 ac3_demuxer_select="ac3_parser"
2291 asf_demuxer_select="riffdec"
2292 asf_muxer_select="riffenc"
2293 asf_stream_muxer_select="asf_muxer"
2294 avi_demuxer_select="iso_media riffdec"
2295 avi_muxer_select="riffenc"
2296 avisynth_demuxer_deps="avisynth"
2297 avisynth_demuxer_select="riffdec"
2298 caf_demuxer_select="iso_media riffdec"
2299 dash_muxer_select="mp4_muxer"
2300 dirac_demuxer_select="dirac_parser"
2301 dv_demuxer_select="dvprofile"
2302 dv_muxer_select="dvprofile"
2303 dxa_demuxer_select="riffdec"
2304 eac3_demuxer_select="ac3_parser"
2305 f4v_muxer_select="mov_muxer"
2306 flac_demuxer_select="flac_parser"
2307 hds_muxer_select="flv_muxer"
2308 hls_muxer_select="mpegts_muxer"
2309 ipod_muxer_select="mov_muxer"
2310 ismv_muxer_select="mov_muxer"
2311 matroska_audio_muxer_select="matroska_muxer"
2312 matroska_demuxer_select="iso_media riffdec"
2313 matroska_demuxer_suggest="bzlib lzo zlib"
2314 matroska_muxer_select="iso_media riffenc"
2315 mmf_muxer_select="riffenc"
2316 mov_demuxer_select="iso_media riffdec"
2317 mov_demuxer_suggest="zlib"
2318 mov_muxer_select="iso_media riffenc rtpenc_chain"
2319 mp3_demuxer_select="mpegaudio_parser"
2320 mp4_muxer_select="mov_muxer"
2321 mpegts_demuxer_select="iso_media"
2322 mpegts_muxer_select="adts_muxer latm_muxer"
2323 mpegtsraw_demuxer_select="mpegts_demuxer"
2324 mxf_d10_muxer_select="mxf_muxer"
2325 nut_muxer_select="riffenc"
2326 nuv_demuxer_select="riffdec"
2327 oga_muxer_select="ogg_muxer"
2328 ogg_demuxer_select="dirac_parse"
2329 opus_muxer_select="ogg_muxer"
2330 psp_muxer_select="mov_muxer"
2331 rtp_demuxer_select="sdp_demuxer"
2332 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2333 rtsp_demuxer_select="http_protocol rtpdec"
2334 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2335 sap_demuxer_select="sdp_demuxer"
2336 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2337 sdp_demuxer_select="rtpdec"
2338 smoothstreaming_muxer_select="ismv_muxer"
2339 spdif_muxer_select="aac_parser"
2340 spx_muxer_select="ogg_muxer"
2341 swf_demuxer_suggest="zlib"
2342 tak_demuxer_select="tak_parser"
2343 tg2_muxer_select="mov_muxer"
2344 tgp_muxer_select="mov_muxer"
2345 w64_demuxer_select="wav_demuxer"
2346 wav_demuxer_select="riffdec"
2347 wav_muxer_select="riffenc"
2348 webm_muxer_select="iso_media riffenc"
2349 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2350 wtv_demuxer_select="mpegts_demuxer riffdec"
2351 xmv_demuxer_select="riffdec"
2352 xwma_demuxer_select="riffdec"
2353
2354 # indevs / outdevs
2355 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2356 alsa_outdev_deps="alsa_asoundlib_h"
2357 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2358 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2359 dv1394_indev_deps="dv1394"
2360 dv1394_indev_select="dv_demuxer"
2361 fbdev_indev_deps="linux_fb_h"
2362 jack_indev_deps="jack_jack_h"
2363 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2364 libcdio_indev_deps="libcdio"
2365 libdc1394_indev_deps="libdc1394"
2366 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2367 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2368 pulse_indev_deps="libpulse"
2369 sndio_indev_deps="sndio_h"
2370 sndio_outdev_deps="sndio_h"
2371 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2372 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2373 vfwcap_indev_extralibs="-lavicap32"
2374 xcbgrab_indev_deps="libxcb"
2375
2376 # protocols
2377 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2378 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2379 ffrtmpcrypt_protocol_select="tcp_protocol"
2380 ffrtmphttp_protocol_deps="!librtmp_protocol"
2381 ffrtmphttp_protocol_select="http_protocol"
2382 gopher_protocol_select="network"
2383 http_protocol_select="tcp_protocol"
2384 httpproxy_protocol_select="tcp_protocol"
2385 https_protocol_select="tls_protocol"
2386 icecast_protocol_select="http_protocol"
2387 librtmp_protocol_deps="librtmp"
2388 librtmpe_protocol_deps="librtmp"
2389 librtmps_protocol_deps="librtmp"
2390 librtmpt_protocol_deps="librtmp"
2391 librtmpte_protocol_deps="librtmp"
2392 mmsh_protocol_select="http_protocol"
2393 mmst_protocol_select="network"
2394 rtmp_protocol_deps="!librtmp_protocol"
2395 rtmp_protocol_select="tcp_protocol"
2396 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2397 rtmps_protocol_deps="!librtmp_protocol"
2398 rtmps_protocol_select="tls_protocol"
2399 rtmpt_protocol_select="ffrtmphttp_protocol"
2400 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2401 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2402 rtp_protocol_select="udp_protocol"
2403 sctp_protocol_deps="struct_sctp_event_subscribe"
2404 sctp_protocol_select="network"
2405 srtp_protocol_select="rtp_protocol srtp"
2406 tcp_protocol_select="network"
2407 tls_gnutls_protocol_deps="gnutls"
2408 tls_gnutls_protocol_select="tcp_protocol"
2409 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2410 tls_openssl_protocol_select="tcp_protocol"
2411 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2412 udp_protocol_select="network"
2413 unix_protocol_deps="sys_un_h"
2414 unix_protocol_select="network"
2415
2416 # filters
2417 blackframe_filter_deps="gpl"
2418 boxblur_filter_deps="gpl"
2419 bs2b_filter_deps="libbs2b"
2420 cropdetect_filter_deps="gpl"
2421 deinterlace_qsv_filter_deps="libmfx"
2422 delogo_filter_deps="gpl"
2423 drawtext_filter_deps="libfreetype"
2424 frei0r_filter_deps="frei0r dlopen"
2425 frei0r_filter_extralibs='$ldl'
2426 frei0r_src_filter_deps="frei0r dlopen"
2427 frei0r_src_filter_extralibs='$ldl'
2428 hdcd_filter_deps="libhdcd"
2429 hqdn3d_filter_deps="gpl"
2430 interlace_filter_deps="gpl"
2431 ocv_filter_deps="libopencv"
2432 resample_filter_deps="avresample"
2433 scale_filter_deps="swscale"
2434 scale_qsv_filter_deps="libmfx"
2435 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2436
2437 # examples
2438 avcodec_example_deps="avcodec avutil"
2439 encode_audio_example_deps="avcodec avutil"
2440 filter_audio_example_deps="avfilter avutil"
2441 metadata_example_deps="avformat avutil"
2442 output_example_deps="avcodec avformat avutil swscale"
2443 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2444 transcode_aac_example_deps="avcodec avformat avresample"
2445
2446 # libraries, in linking order
2447 avcodec_deps="avutil"
2448 avdevice_deps="avformat avcodec avutil"
2449 avfilter_deps="avutil"
2450 avformat_deps="avcodec avutil"
2451 avresample_deps="avutil"
2452 swscale_deps="avutil"
2453
2454 # programs
2455 avconv_deps="avcodec avfilter avformat avresample swscale"
2456 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2457 fps_filter null_filter resample_filter scale_filter
2458 trim_filter"
2459 avplay_deps="avcodec avfilter avformat avresample sdl"
2460 avplay_libs='$sdl_libs'
2461 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2462 avprobe_deps="avcodec avformat"
2463
2464 # documentation
2465 pod2man_deps="doc"
2466 texi2html_deps="doc"
2467
2468 # default parameters
2469
2470 logfile="config.log"
2471
2472 # installation paths
2473 prefix_default="/usr/local"
2474 bindir_default='${prefix}/bin'
2475 datadir_default='${prefix}/share/avconv'
2476 docdir_default='${prefix}/share/doc/libav'
2477 incdir_default='${prefix}/include'
2478 libdir_default='${prefix}/lib'
2479 mandir_default='${prefix}/share/man'
2480 shlibdir_default="$libdir_default"
2481
2482 # toolchain
2483 ar_default="ar"
2484 cc_default="gcc"
2485 host_cc_default="gcc"
2486 cp_f="cp -f"
2487 ln_s="ln -s -f"
2488 nm_default="nm -g"
2489 objformat="elf"
2490 pkg_config_default=pkg-config
2491 ranlib="ranlib"
2492 strip="strip"
2493 version_script='--version-script'
2494 yasmexe="yasm"
2495
2496 # machine
2497 arch_default=$(uname -m)
2498 cpu="generic"
2499 intrinsics="none"
2500
2501 # OS
2502 target_os_default=$(tolower $(uname -s))
2503 host_os=$target_os_default
2504
2505 # configurable options
2506 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2507
2508 enable asm
2509 enable debug
2510 enable doc
2511 enable faan faandct faanidct
2512 enable optimizations
2513 enable safe_bitstream_reader
2514 enable static
2515 enable swscale_alpha
2516 enable valgrind_backtrace
2517
2518 # By default, enable only those hwaccels that have no external dependencies.
2519 enable d3d11va dxva2 vda vdpau
2520
2521 # build settings
2522 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2523 LIBPREF="lib"
2524 LIBSUF=".a"
2525 FULLNAME='$(NAME)$(BUILDSUF)'
2526 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2527 SLIBPREF="lib"
2528 SLIBSUF=".so"
2529 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2530 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2531 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2532 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2533 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2534 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2535 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2536
2537 asflags_filter=echo
2538 cflags_filter=echo
2539 ldflags_filter=echo
2540
2541 AS_C='-c'
2542 AS_O='-o $@'
2543 CC_C='-c'
2544 CC_E='-E -o $@'
2545 CC_O='-o $@'
2546 OBJCC_C='-c'
2547 OBJCC_E='-E -o $@'
2548 OBJCC_O='-o $@'
2549 LD_O='-o $@'
2550 LD_LIB='-l%'
2551 LD_PATH='-L'
2552 HOSTCC_C='-c'
2553 HOSTCC_E='-E -o $@'
2554 HOSTCC_O='-o $@'
2555 HOSTLD_O='-o $@'
2556
2557 host_libs='-lm'
2558 host_cflags_filter=echo
2559 host_ldflags_filter=echo
2560
2561 target_path='$(CURDIR)'
2562
2563 # since the object filename is not given with the -MM flag, the compiler
2564 # is only able to print the basename, and we must add the path ourselves
2565 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2566 DEPFLAGS='-MM'
2567
2568 # find source path
2569 if test -f configure; then
2570 source_path=.
2571 else
2572 source_path=$(cd $(dirname "$0"); pwd)
2573 echo "$source_path" | grep -q '[[:blank:]]' &&
2574 die "Out of tree builds are impossible with whitespace in source path."
2575 test -e "$source_path/config.h" &&
2576 die "Out of tree builds are impossible with config.h in source dir."
2577 fi
2578
2579 for v in "$@"; do
2580 r=${v#*=}
2581 l=${v%"$r"}
2582 r=$(sh_quote "$r")
2583 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2584 done
2585
2586 find_things(){
2587 thing=$1
2588 pattern=$2
2589 file=$source_path/$3
2590 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2591 }
2592
2593 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2594 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2595 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2596 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2597 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2598 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2599 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2600 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2601 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2602
2603 find_things_extern(){
2604 thing=$1
2605 pattern=$2
2606 file=$source_path/$3
2607 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2608 }
2609
2610 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2611 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2612
2613 ALL_COMPONENTS="
2614 $BSF_LIST
2615 $DECODER_LIST
2616 $DEMUXER_LIST
2617 $ENCODER_LIST
2618 $FILTER_LIST
2619 $HWACCEL_LIST
2620 $INDEV_LIST
2621 $MUXER_LIST
2622 $OUTDEV_LIST
2623 $PARSER_LIST
2624 $PROTOCOL_LIST
2625 "
2626
2627 for n in $COMPONENT_LIST; do
2628 v=$(toupper ${n%s})_LIST
2629 eval enable \$$v
2630 eval ${n}_if_any="\$$v"
2631 done
2632
2633 enable $ARCH_EXT_LIST
2634
2635 die_unknown(){
2636 echo "Unknown option \"$1\"."
2637 echo "See $0 --help for available options."
2638 exit 1
2639 }
2640
2641 print_3_columns() {
2642 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2643 }
2644
2645 show_list() {
2646 suffix=_$1
2647 shift
2648 echo $* | sed s/$suffix//g | print_3_columns
2649 exit 0
2650 }
2651
2652 rand_list(){
2653 IFS=', '
2654 set -- $*
2655 unset IFS
2656 for thing; do
2657 comp=${thing%:*}
2658 prob=${thing#$comp}
2659 prob=${prob#:}
2660 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2661 echo "prob ${prob:-0.5}"
2662 printf '%s\n' $comp
2663 done
2664 }
2665
2666 do_random(){
2667 action=$1
2668 shift
2669 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2670 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2671 }
2672
2673 for opt do
2674 optval="${opt#*=}"
2675 case "$opt" in
2676 --extra-ldflags=*)
2677 add_ldflags $optval
2678 ;;
2679 --extra-ldexeflags=*)
2680 add_ldexeflags $optval
2681 ;;
2682 --extra-libs=*)
2683 add_extralibs $optval
2684 ;;
2685 --disable-devices)
2686 disable $INDEV_LIST $OUTDEV_LIST
2687 ;;
2688 --enable-debug=*)
2689 debuglevel="$optval"
2690 ;;
2691 --disable-programs)
2692 disable $PROGRAM_LIST
2693 ;;
2694 --disable-everything)
2695 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2696 ;;
2697 --disable-all)
2698 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2699 disable $LIBRARY_LIST $PROGRAM_LIST doc
2700 ;;
2701 --enable-random|--disable-random)
2702 action=${opt%%-random}
2703 do_random ${action#--} $COMPONENT_LIST
2704 ;;
2705 --enable-random=*|--disable-random=*)
2706 action=${opt%%-random=*}
2707 do_random ${action#--} $optval
2708 ;;
2709 --enable-*=*|--disable-*=*)
2710 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2711 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2712 eval list=\$$(toupper $thing)_LIST
2713 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2714 $action $(filter "$name" $list)
2715 ;;
2716 --enable-avserver|--disable-avserver*)
2717 warn "avserver has been removed, the ${opt} option is only"\
2718 "provided for compatibility and will be removed in the future"
2719 ;;
2720 --enable-?*|--disable-?*)
2721 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2722 if is_in $option $COMPONENT_LIST; then
2723 test $action = disable && action=unset
2724 eval $action \$$(toupper ${option%s})_LIST
2725 elif is_in $option $CMDLINE_SELECT; then
2726 $action $option
2727 else
2728 die_unknown $opt
2729 fi
2730 ;;
2731 --list-*)
2732 NAME="${opt#--list-}"
2733 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2734 NAME=${NAME%s}
2735 eval show_list $NAME \$$(toupper $NAME)_LIST
2736 ;;
2737 --help|-h) show_help
2738 ;;
2739 *)
2740 optname="${opt%%=*}"
2741 optname="${optname#--}"
2742 optname=$(echo "$optname" | sed 's/-/_/g')
2743 if is_in $optname $CMDLINE_SET; then
2744 eval $optname='$optval'
2745 elif is_in $optname $CMDLINE_APPEND; then
2746 append $optname "$optval"
2747 else
2748 die_unknown $opt
2749 fi
2750 ;;
2751 esac
2752 done
2753
2754 for e in $env; do
2755 eval "export $e"
2756 done
2757
2758 disabled logging && logfile=/dev/null
2759
2760 # Disable all the library-specific components if the library itself
2761 # is disabled, see AVCODEC_LIST and following _LIST variables.
2762
2763 disable_components(){
2764 disabled ${1} && disable $(
2765 eval components="\$$(toupper ${1})_COMPONENTS"
2766 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2767 )
2768 }
2769
2770 map 'disable_components $v' $LIBRARY_LIST
2771
2772 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2773 set >> $logfile
2774
2775 case "$toolchain" in
2776 *-asan)
2777 cc_default="${toolchain%-asan}"
2778 add_cflags -fsanitize=address
2779 add_ldflags -fsanitize=address
2780 ;;
2781 *-msan)
2782 cc_default="${toolchain%-msan}"
2783 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2784 add_ldflags -fsanitize=memory
2785 ;;
2786 *-tsan)
2787 cc_default="${toolchain%-tsan}"
2788 add_cflags -fsanitize=thread -pie
2789 add_ldflags -fsanitize=thread -pie
2790 case "$toolchain" in
2791 gcc-tsan)
2792 add_cflags -fPIC
2793 add_ldflags -fPIC
2794 ;;
2795 esac
2796 ;;
2797 *-usan)
2798 cc_default="${toolchain%-usan}"
2799 add_cflags -fsanitize=undefined
2800 add_ldflags -fsanitize=undefined
2801 case "$toolchain" in
2802 clang-usan)
2803 add_cflags -O1
2804 ;;
2805 esac
2806 ;;
2807 valgrind-*)
2808 target_exec_default="valgrind"
2809 case "$toolchain" in
2810 valgrind-massif)
2811 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2812 ;;
2813 valgrind-memcheck)
2814 target_exec_args="--track-origins=yes --leak-check=full"
2815 ;;
2816 esac
2817 ;;
2818 msvc)
2819 # Check whether the current MSVC version needs the C99 converter.
2820 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2821 # support enough of C99 to build libav. Default to the new
2822 # behaviour if the regexp was unable to match anything, since this
2823 # successfully parses the version number of existing supported
2824 # versions that require the converter (MSVC 2010 and 2012).
2825 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2826 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2827 cc_default="cl"
2828 else
2829 cc_default="c99wrap cl"
2830 fi
2831 ld_default="$source_path/compat/windows/mslink"
2832 nm_default="dumpbin -symbols"
2833 ar_default="lib"
2834 case "$arch" in
2835 arm*)
2836 as_default="armasm"
2837 ;;
2838 esac
2839 target_os_default="win32"
2840 # Use a relative path for TMPDIR. This makes sure all the
2841 # ffconf temp files are written with a relative path, avoiding
2842 # issues with msys/win32 path conversion for MSVC parameters
2843 # such as -Fo<file> or -out:<file>.
2844 TMPDIR=.
2845 ;;
2846 icl)
2847 cc_default="icl"
2848 ld_default="xilink"
2849 nm_default="dumpbin -symbols"
2850 ar_default="xilib"
2851 target_os_default="win32"
2852 TMPDIR=.
2853 ;;
2854 gcov)
2855 add_cflags -fprofile-arcs -ftest-coverage
2856 add_ldflags -fprofile-arcs -ftest-coverage
2857 ;;
2858 llvm-cov)
2859 add_cflags -fprofile-arcs -ftest-coverage
2860 add_ldflags --coverage
2861 ;;
2862 hardened)
2863 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2864 add_cflags -fno-strict-overflow -fstack-protector-all
2865 add_ldflags -Wl,-z,relro -Wl,-z,now
2866 ;;
2867 ?*)
2868 die "Unknown toolchain $toolchain"
2869 ;;
2870 esac
2871
2872 test -n "$cross_prefix" && enable cross_compile
2873
2874 if enabled cross_compile; then
2875 test -n "$arch" && test -n "$target_os" ||
2876 die "Must specify target arch and OS when cross-compiling"
2877 fi
2878
2879 ar_default="${cross_prefix}${ar_default}"
2880 cc_default="${cross_prefix}${cc_default}"
2881 occ_default="${cross_prefix}${occ_default}"
2882 nm_default="${cross_prefix}${nm_default}"
2883 pkg_config_default="${cross_prefix}${pkg_config_default}"
2884 ranlib="${cross_prefix}${ranlib}"
2885 strip="${cross_prefix}${strip}"
2886
2887 sysinclude_default="${sysroot}/usr/include"
2888
2889 set_default arch cc pkg_config sysinclude target_exec target_os
2890 enabled cross_compile || host_cc_default=$cc
2891 set_default host_cc
2892
2893 if ! $pkg_config --version >/dev/null 2>&1; then
2894 warn "$pkg_config not found, library detection may fail."
2895 pkg_config=false
2896 fi
2897
2898 exesuf() {
2899 case $1 in
2900 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2901 esac
2902 }
2903
2904 EXESUF=$(exesuf $target_os)
2905 HOSTEXESUF=$(exesuf $host_os)
2906
2907 # set temporary file name
2908 : ${TMPDIR:=$TEMPDIR}
2909 : ${TMPDIR:=$TMP}
2910 : ${TMPDIR:=/tmp}
2911
2912 if ! check_cmd mktemp -u XXXXXX; then
2913 # simple replacement for missing mktemp
2914 # NOT SAFE FOR GENERAL USE
2915 mktemp(){
2916 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2917 }
2918 fi
2919
2920 tmpfile(){
2921 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2922 (set -C; exec > $tmp) 2>/dev/null ||
2923 die "Unable to create temporary file in $TMPDIR."
2924 append TMPFILES $tmp
2925 eval $1=$tmp
2926 }
2927
2928 trap 'rm -f -- $TMPFILES' EXIT
2929
2930 tmpfile TMPASM .asm
2931 tmpfile TMPC .c
2932 tmpfile TMPE $EXESUF
2933 tmpfile TMPH .h
2934 tmpfile TMPO .o
2935 tmpfile TMPS .S
2936 tmpfile TMPSH .sh
2937 tmpfile TMPV .ver
2938
2939 unset -f mktemp
2940
2941 chmod +x $TMPE
2942
2943 # make sure we can execute files in $TMPDIR
2944 cat > $TMPSH 2>> $logfile <<EOF
2945 #! /bin/sh
2946 EOF
2947 chmod +x $TMPSH >> $logfile 2>&1
2948 if ! $TMPSH >> $logfile 2>&1; then
2949 cat <<EOF
2950 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2951 variable to another directory and make sure that it is not mounted noexec.
2952 EOF
2953 die "Sanity test failed."
2954 fi
2955
2956 armasm_flags(){
2957 for flag; do
2958 case $flag in
2959 # Filter out MSVC cl.exe options from cflags that shouldn't
2960 # be passed to gas-preprocessor
2961 -M[TD]*) ;;
2962 *) echo $flag ;;
2963 esac
2964 done
2965 }
2966
2967 ccc_flags(){
2968 for flag; do
2969 case $flag in
2970 -std=c99) echo -c99 ;;
2971 -mcpu=*) echo -arch ${flag#*=} ;;
2972 -mieee) echo -ieee ;;
2973 -O*|-fast) echo $flag ;;
2974 -fno-math-errno) echo -assume nomath_errno ;;
2975 -g) echo -g3 ;;
2976 -Wall) echo -msg_enable level2 ;;
2977 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2978 -Wl,*) echo $flag ;;
2979 -f*|-W*) ;;
2980 *) echo $flag ;;
2981 esac
2982 done
2983 }
2984
2985 cparser_flags(){
2986 for flag; do
2987 case $flag in
2988 -Wno-switch) echo -Wno-switch-enum ;;
2989 -Wno-format-zero-length) ;;
2990 -Wdisabled-optimization) ;;
2991 -Wno-pointer-sign) echo -Wno-other ;;
2992 *) echo $flag ;;
2993 esac
2994 done
2995 }
2996
2997 msvc_common_flags(){
2998 for flag; do
2999 case $flag in
3000 # In addition to specifying certain flags under the compiler
3001 # specific filters, they must be specified here as well or else the
3002 # generic catch all at the bottom will print the original flag.
3003 -Wall) ;;
3004 -std=c99) ;;
3005 # Common flags
3006 -fomit-frame-pointer) ;;
3007 -g) echo -Z7 ;;
3008 -fno-math-errno) ;;
3009 -fno-common) ;;
3010 -fno-signed-zeros) ;;
3011 -fPIC) ;;
3012 -mthumb) ;;
3013 -march=*) ;;
3014 -lz) echo zlib.lib ;;
3015 -lavifil32) echo vfw32.lib ;;
3016 -lavicap32) echo vfw32.lib user32.lib ;;
3017 -lx264) echo libx264.lib ;;
3018 -l*) echo ${flag#-l}.lib ;;
3019 -L*) echo -libpath:${flag#-L} ;;
3020 *) echo $flag ;;
3021 esac
3022 done
3023 }
3024
3025 msvc_flags(){
3026 msvc_common_flags "$@"
3027 for flag; do
3028 case $flag in
3029 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3030 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3031 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3032 -wd4273 -wd4554 -wd4701 ;;
3033 esac
3034 done
3035 }
3036
3037 icl_flags(){
3038 msvc_common_flags "$@"
3039 for flag; do
3040 case $flag in
3041 # Despite what Intel's documentation says -Wall, which is supported
3042 # on Windows, does enable remarks so disable them here.
3043 -Wall) echo $flag -Qdiag-disable:remark ;;
3044 -std=c99) echo -Qstd=c99 ;;
3045 esac
3046 done
3047 }
3048
3049 pgi_flags(){
3050 for flag; do
3051 case $flag in
3052 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3053 -fomit-frame-pointer) echo -Mnoframe ;;
3054 -g) echo -gopt ;;
3055 *) echo $flag ;;
3056 esac
3057 done
3058 }
3059
3060 suncc_flags(){
3061 for flag; do
3062 case $flag in
3063 -march=*|-mcpu=*)
3064 case "${flag#*=}" in
3065 native) echo -xtarget=native ;;
3066 v9|niagara) echo -xarch=sparc ;;
3067 ultrasparc) echo -xarch=sparcvis ;;
3068 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3069 i586|pentium) echo -xchip=pentium ;;
3070 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3071 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3072 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3073 pentium4*) echo -xtarget=pentium4 ;;
3074 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3075 *-sse3) echo -xarch=sse3 ;;
3076 core2) echo -xarch=ssse3 -xchip=core2 ;;
3077 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3078 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3079 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3080 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3081 k8|opteron|athlon64|athlon-fx)
3082 echo -xarch=sse2a ;;
3083 athlon*) echo -xarch=pentium_proa ;;
3084 esac
3085 ;;
3086 -std=c99) echo -xc99 ;;
3087 -fomit-frame-pointer) echo -xregs=frameptr ;;
3088 -fPIC) echo -KPIC -xcode=pic32 ;;
3089 -W*,*) echo $flag ;;
3090 -f*-*|-W*|-mimpure-text) ;;
3091 -shared) echo -G ;;
3092 *) echo $flag ;;
3093 esac
3094 done
3095 }
3096
3097 tms470_flags(){
3098 for flag; do
3099 case $flag in
3100 -march=*|-mcpu=*)
3101 case "${flag#*=}" in
3102 armv7-a|cortex-a*) echo -mv=7a8 ;;
3103 armv7-r|cortex-r*) echo -mv=7r4 ;;
3104 armv7-m|cortex-m*) echo -mv=7m3 ;;
3105 armv6*|arm11*) echo -mv=6 ;;
3106 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3107 echo -mv=5e ;;
3108 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3109 esac
3110 ;;
3111 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3112 -mfpu=vfp) echo --float_support=vfpv2 ;;
3113 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3114 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3115 -msoft-float) echo --float_support=vfplib ;;
3116 -O[0-3]|-mf=*) echo $flag ;;
3117 -g) echo -g -mn ;;
3118 -pds=*) echo $flag ;;
3119 -D*|-I*) echo $flag ;;
3120 --gcc|--abi=*) echo $flag ;;
3121 -me) echo $flag ;;
3122 esac
3123 done
3124 }
3125
3126 probe_cc(){
3127 pfx=$1
3128 _cc=$2
3129
3130 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3131 unset _ld_o _ldflags _ld_lib _ld_path
3132 unset _depflags _DEPCMD _DEPFLAGS
3133 _flags_filter=echo
3134
3135 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3136 _type=llvm_gcc
3137 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3138 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3139 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3140 _cflags_speed='-O3'
3141 _cflags_size='-Os'
3142 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3143 _type=gcc
3144 gcc_version=$($_cc --version | head -n1)
3145 gcc_basever=$($_cc -dumpversion)
3146 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3147 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3148 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3149 if ! $_cc -dumpversion | grep -q '^2\.'; then
3150 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3151 fi
3152 _cflags_speed='-O3'
3153 _cflags_size='-Os'
3154 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3155 _type=icc
3156 _ident=$($_cc --version | head -n1)
3157 _depflags='-MMD'
3158 _cflags_speed='-O3'
3159 _cflags_size='-Os'
3160 _cflags_noopt='-O1'
3161 elif $_cc -v 2>&1 | grep -q xlc; then
3162 _type=xlc
3163 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3164 _cflags_speed='-O5'
3165 _cflags_size='-O5 -qcompact'
3166 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3167 _type=ccc
3168 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3169 _DEPFLAGS='-M'
3170 _cflags_speed='-fast'
3171 _cflags_size='-O1'
3172 _flags_filter=ccc_flags
3173 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3174 test -d "$sysroot" || die "No valid sysroot specified."
3175 _type=armcc
3176 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3177 armcc_conf="$PWD/armcc.conf"
3178 $_cc --arm_linux_configure \
3179 --arm_linux_config_file="$armcc_conf" \
3180 --configure_sysroot="$sysroot" \
3181 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3182 die "Error creating armcc configuration file."
3183 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3184 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3185 as_default="${cross_prefix}gcc"
3186 _depflags='-MMD'
3187 _cflags_speed='-O3'
3188 _cflags_size='-Os'
3189 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3190 _type=tms470
3191 _ident=$($_cc -version | head -n1 | tr -s ' ')
3192 _flags='--gcc --abi=eabi -me'
3193 _cc_e='-ppl -fe=$@'
3194 _cc_o='-fe=$@'
3195 _depflags='-ppa -ppd=$(@:.o=.d)'
3196 _cflags_speed='-O3 -mf=5'
3197 _cflags_size='-O3 -mf=2'
3198 _flags_filter=tms470_flags
3199 elif $_cc -v 2>&1 | grep -q clang; then
3200 _type=clang
3201 _ident=$($_cc --version 2>/dev/null | head -n1)
3202 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3203 _cflags_speed='-O3'
3204 _cflags_size='-Os'
3205 elif $_cc -V 2>&1 | grep -q Sun; then
3206 _type=suncc
3207 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3208 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3209 _DEPFLAGS='-xM1 -xc99'
3210 _ldflags='-std=c99'
3211 _cflags_speed='-O5'
3212 _cflags_size='-O5 -xspace'
3213 _flags_filter=suncc_flags
3214 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3215 _type=pathscale
3216 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3217 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3218 _cflags_speed='-O2'
3219 _cflags_size='-Os'
3220 _flags_filter='filter_out -Wdisabled-optimization'
3221 elif $_cc -v 2>&1 | grep -q Open64; then
3222 _type=open64
3223 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3224 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3225 _cflags_speed='-O2'
3226 _cflags_size='-Os'
3227 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3228 elif $_cc -V 2>&1 | grep -q Portland; then
3229 _type=pgi
3230 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3231 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3232 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3233 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3234 _cflags_noopt="-O1"
3235 _flags_filter=pgi_flags
3236 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3237 _type=armasm
3238 _ident=$($_cc | head -n1)
3239 # 4509: "This form of conditional instruction is deprecated"
3240 _flags="-nologo -ignore 4509"
3241 _flags_filter=armasm_flags
3242 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3243 _type=msvc
3244 _ident=$($_cc 2>&1 | head -n1)
3245 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3246 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3247 _cflags_speed="-O2"
3248 _cflags_size="-O1"
3249 if $_cc -nologo- 2>&1 | grep -q Linker; then
3250 _ld_o='-out:$@'
3251 else
3252 _ld_o='-Fe$@'
3253 fi
3254 _cc_o='-Fo$@'
3255 _cc_e='-P -Fi$@'
3256 _flags_filter=msvc_flags
3257 _ld_lib='lib%.a'
3258 _ld_path='-libpath:'
3259 _flags='-nologo'
3260 elif $_cc 2>&1 | grep -q Intel; then
3261 _type=icl
3262 _ident=$($_cc 2>&1 | head -n1)
3263 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3264 # Not only is O3 broken on 13.x+ but it is slower on all previous
3265 # versions (tested) as well.
3266 _cflags_speed="-O2"
3267 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3268 if $_cc 2>&1 | grep -q Linker; then
3269 _ld_o='-out:$@'
3270 else
3271 _ld_o='-Fe$@'
3272 fi
3273 _cc_o='-Fo$@'
3274 _cc_e='-P'
3275 _flags_filter=icl_flags
3276 _ld_lib='lib%.a'
3277 _ld_path='-libpath:'
3278 # -Qdiag-error to make icl error when seeing certain unknown arguments
3279 _flags='-nologo -Qdiag-error:4044,10157'
3280 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3281 # with MSVC which enables it by default.
3282 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3283 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3284 # lld can emulate multiple different linkers; in ms link.exe mode,
3285 # the -? parameter gives the help output which contains an identifyable
3286 # string, while it gives an error in other modes.
3287 _type=lld-link
3288 # The link.exe mode doesn't have a switch for getting the version,
3289 # but we can force it back to gnu mode and get the version from there.
3290 _ident=$($_cc -flavor gnu --version)
3291 _ld_o='-out:$@'
3292 _flags_filter=msvc_flags
3293 _ld_lib='lib%.a'
3294 _ld_path='-libpath:'
3295 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3296 _type=cparser
3297 _ident=$($_cc --version | head -n1)
3298 _depflags='-MMD'
3299 _cflags_speed='-O4'
3300 _cflags_size='-O2'
3301 _flags_filter=cparser_flags
3302 fi
3303
3304 eval ${pfx}_type=\$_type
3305 eval ${pfx}_ident=\$_ident
3306 }
3307
3308 set_ccvars(){
3309 eval ${1}_C=\${_cc_c-\${${1}_C}}
3310 eval ${1}_E=\${_cc_e-\${${1}_E}}
3311 eval ${1}_O=\${_cc_o-\${${1}_O}}
3312
3313 if [ -n "$_depflags" ]; then
3314 eval ${1}_DEPFLAGS=\$_depflags
3315 else
3316 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3317 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3318 eval DEP${1}FLAGS=\$_flags
3319 fi
3320 }
3321
3322 probe_cc cc "$cc"
3323 cflags_filter=$_flags_filter
3324 cflags_speed=$_cflags_speed
3325 cflags_size=$_cflags_size
3326 cflags_noopt=$_cflags_noopt
3327 add_cflags $_flags $_cflags
3328 cc_ldflags=$_ldflags
3329 set_ccvars CC
3330
3331 probe_cc hostcc "$host_cc"
3332 host_cflags_filter=$_flags_filter
3333 add_host_cflags $_flags $_cflags
3334 set_ccvars HOSTCC
3335
3336 test -n "$cc_type" && enable $cc_type ||
3337 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3338
3339 : ${as_default:=$cc}
3340 : ${objcc_default:=$cc}
3341 : ${dep_cc_default:=$cc}
3342 : ${ld_default:=$cc}
3343 : ${host_ld_default:=$host_cc}
3344 set_default ar as objcc dep_cc ld host_ld
3345
3346 probe_cc as "$as"
3347 asflags_filter=$_flags_filter
3348 add_asflags $_flags $_cflags
3349 set_ccvars AS
3350
3351 probe_cc objcc "$objcc"
3352 objcflags_filter=$_flags_filter
3353 add_objcflags $_flags $_cflags
3354 set_ccvars OBJC
3355
3356 probe_cc ld "$ld"
3357 ldflags_filter=$_flags_filter
3358 add_ldflags $_flags $_ldflags
3359 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3360 LD_O=${_ld_o-$LD_O}
3361 LD_LIB=${_ld_lib-$LD_LIB}
3362 LD_PATH=${_ld_path-$LD_PATH}
3363
3364 probe_cc hostld "$host_ld"
3365 host_ldflags_filter=$_flags_filter
3366 add_host_ldflags $_flags $_ldflags
3367 HOSTLD_O=${_ld_o-$HOSTLD_O}
3368
3369 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3370 probe_cc depcc "$dep_cc"
3371 CCDEP=${_DEPCMD:-$DEPCMD}
3372 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3373 DEPCCFLAGS=$_flags
3374 fi
3375
3376 if $ar 2>&1 | grep -q Microsoft; then
3377 arflags="-nologo"
3378 ar_o='-out:$@'
3379 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3380 arflags="rq"
3381 ar_o='$@'
3382 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3383 arflags='-Xany -r -c'
3384 ar_o='$@'
3385 else
3386 arflags="rc"
3387 ar_o='$@'
3388 fi
3389
3390 add_cflags $extra_cflags
3391 add_objcflags $extra_objcflags
3392 add_asflags $extra_cflags
3393
3394 if test -n "$sysroot"; then
3395 case "$cc_type" in
3396 gcc|llvm_gcc|clang)
3397 add_cppflags --sysroot="$sysroot"
3398 add_ldflags --sysroot="$sysroot"
3399 ;;
3400 tms470)
3401 add_cppflags -I"$sysinclude"
3402 add_ldflags --sysroot="$sysroot"
3403 ;;
3404 esac
3405 fi
3406
3407 if test "$cpu" = host; then
3408 enabled cross_compile &&
3409 die "--cpu=host makes no sense when cross-compiling."
3410
3411 case "$cc_type" in
3412 gcc|llvm_gcc)
3413 check_native(){
3414 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3415 sed -n "/cc1.*$1=/{
3416 s/.*$1=\\([^ ]*\\).*/\\1/
3417 p
3418 q
3419 }" $TMPE
3420 }
3421 cpu=$(check_native -march || check_native -mcpu)
3422 ;;
3423 esac
3424
3425 test "${cpu:-host}" = host &&
3426 die "--cpu=host not supported with compiler $cc"
3427 fi
3428
3429 # Deal with common $arch aliases
3430 case "$arch" in
3431 aarch64|arm64)
3432 arch="aarch64"
3433 ;;
3434 arm*)
3435 arch="arm"
3436 ;;
3437 mips*|IP*)
3438 case "$arch" in
3439 *el)
3440 add_cppflags -EL
3441 add_ldflags -EL
3442 ;;
3443 *eb)
3444 add_cppflags -EB
3445 add_ldflags -EB
3446 ;;
3447 esac
3448 arch="mips"
3449 ;;
3450 parisc*|hppa*)
3451 arch="parisc"
3452 ;;
3453 "Power Macintosh"|ppc*|powerpc*)
3454 arch="ppc"
3455 ;;
3456 s390|s390x)
3457 arch="s390"
3458 ;;
3459 sh4|sh)
3460 arch="sh4"
3461 ;;
3462 sun4u|sparc*)
3463 arch="sparc"
3464 ;;
3465 tilegx|tile-gx)
3466 arch="tilegx"
3467 ;;
3468 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3469 arch="x86"
3470 ;;
3471 esac
3472
3473 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3474 enable $arch
3475
3476 # Add processor-specific flags
3477 if enabled aarch64; then
3478
3479 case $cpu in
3480 armv*)
3481 cpuflags="-march=$cpu"
3482 ;;
3483 *)
3484 cpuflags="-mcpu=$cpu"
3485 ;;
3486 esac
3487
3488 elif enabled alpha; then
3489
3490 cpuflags="-mcpu=$cpu"
3491
3492 elif enabled arm; then
3493
3494 check_arm_arch() {
3495 check_cpp_condition stddef.h \
3496 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3497 $cpuflags
3498 }
3499
3500 probe_arm_arch() {
3501 if check_arm_arch 4; then echo armv4
3502 elif check_arm_arch 4T; then echo armv4t
3503 elif check_arm_arch 5; then echo armv5
3504 elif check_arm_arch 5E; then echo armv5e
3505 elif check_arm_arch 5T; then echo armv5t
3506 elif check_arm_arch 5TE; then echo armv5te
3507 elif check_arm_arch 5TEJ; then echo armv5te
3508 elif check_arm_arch 6; then echo armv6
3509 elif check_arm_arch 6J; then echo armv6j
3510 elif check_arm_arch 6K; then echo armv6k
3511 elif check_arm_arch 6Z; then echo armv6z
3512 elif check_arm_arch 6ZK; then echo armv6zk
3513 elif check_arm_arch 6T2; then echo armv6t2
3514 elif check_arm_arch 7; then echo armv7
3515 elif check_arm_arch 7A 7_A; then echo armv7-a
3516 elif check_arm_arch 7S; then echo armv7-a
3517 elif check_arm_arch 7R 7_R; then echo armv7-r
3518 elif check_arm_arch 7M 7_M; then echo armv7-m
3519 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3520 elif check_arm_arch 8A 8_A; then echo armv8-a
3521 fi
3522 }
3523
3524 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3525
3526 case $cpu in
3527 armv*)
3528 cpuflags="-march=$cpu"
3529 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3530 ;;
3531 *)
3532 cpuflags="-mcpu=$cpu"
3533 case $cpu in
3534 cortex-a*) subarch=armv7a ;;
3535 cortex-r*) subarch=armv7r ;;
3536 cortex-m*) enable thumb; subarch=armv7m ;;
3537 arm11*) subarch=armv6 ;;
3538 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3539 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3540 *) subarch=$(probe_arm_arch) ;;
3541 esac
3542 ;;
3543 esac
3544
3545 case "$subarch" in
3546 armv5t*) enable fast_clz ;;
3547 armv[6-8]*) enable fast_clz fast_unaligned ;;
3548 esac
3549
3550 elif enabled avr32; then
3551
3552 case $cpu in
3553 ap7[02]0[0-2])
3554 subarch="avr32_ap"
3555 cpuflags="-mpart=$cpu"
3556 ;;
3557 ap)
3558 subarch="avr32_ap"
3559 cpuflags="-march=$cpu"
3560 ;;
3561 uc3[ab]*)
3562 subarch="avr32_uc"
3563 cpuflags="-mcpu=$cpu"
3564 ;;
3565 uc)
3566 subarch="avr32_uc"
3567 cpuflags="-march=$cpu"
3568 ;;
3569 esac
3570
3571 elif enabled bfin; then
3572
3573 cpuflags="-mcpu=$cpu"
3574
3575 elif enabled mips; then
3576
3577 cpuflags="-march=$cpu"
3578
3579 elif enabled ppc; then
3580
3581 disable ldbrx
3582
3583 case $(tolower $cpu) in
3584 601|ppc601|powerpc601)
3585 cpuflags="-mcpu=601"
3586 disable altivec
3587 ;;
3588 603*|ppc603*|powerpc603*)
3589 cpuflags="-mcpu=603"
3590 disable altivec
3591 ;;
3592 604*|ppc604*|powerpc604*)
3593 cpuflags="-mcpu=604"
3594 disable altivec
3595 ;;
3596 g3|75*|ppc75*|powerpc75*)
3597 cpuflags="-mcpu=750"
3598 disable altivec
3599 ;;
3600 g4|745*|ppc745*|powerpc745*)
3601 cpuflags="-mcpu=7450"
3602 disable vsx
3603 ;;
3604 74*|ppc74*|powerpc74*)
3605 cpuflags="-mcpu=7400"
3606 disable vsx
3607 ;;
3608 g5|970|ppc970|powerpc970)
3609 cpuflags="-mcpu=970"
3610 disable vsx
3611 ;;
3612 power[3-6]*)
3613 cpuflags="-mcpu=$cpu"
3614 disable vsx
3615 ;;
3616 power[7-8]*)
3617 cpuflags="-mcpu=$cpu"
3618 enable ldbrx
3619 ;;
3620 cell)
3621 cpuflags="-mcpu=cell"
3622 enable ldbrx
3623 disable vsx
3624 ;;
3625 e500mc)
3626 cpuflags="-mcpu=e500mc"
3627 disable altivec
3628 ;;
3629 e500v2)
3630 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3631 disable altivec
3632 disable dcbzl
3633 ;;
3634 e500)
3635 cpuflags="-mcpu=8540 -mhard-float"
3636 disable altivec
3637 disable dcbzl
3638 ;;
3639 esac
3640
3641 elif enabled sparc; then
3642
3643 case $cpu in
3644 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3645 cpuflags="-mcpu=$cpu"
3646 ;;
3647 ultrasparc*|niagara[234])
3648 cpuflags="-mcpu=$cpu"
3649 ;;
3650 esac
3651
3652 elif enabled x86; then
3653
3654 case $cpu in
3655 i[345]86|pentium)
3656 cpuflags="-march=$cpu"
3657 disable i686
3658 disable mmx
3659 ;;
3660 # targets that do NOT support nopl and conditional mov (cmov)
3661 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3662 cpuflags="-march=$cpu"
3663 disable i686
3664 ;;
3665 # targets that do support nopl and conditional mov (cmov)
3666 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3667 cpuflags="-march=$cpu"
3668 enable i686
3669 enable fast_cmov
3670 ;;
3671 # targets that do support conditional mov but on which it's slow
3672 pentium4|pentium4m|prescott|nocona)
3673 cpuflags="-march=$cpu"
3674 enable i686
3675 disable fast_cmov
3676 ;;
3677 esac
3678
3679 fi
3680
3681 if [ "$cpu" != generic ]; then
3682 add_cflags $cpuflags
3683 add_asflags $cpuflags
3684 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3685 fi
3686
3687 # compiler sanity check
3688 check_exec <<EOF
3689 int main(void){ return 0; }
3690 EOF
3691 if test "$?" != 0; then
3692 echo "$cc is unable to create an executable file."
3693 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3694 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3695 echo "Only do this if you know what cross compiling means."
3696 fi
3697 die "C compiler test failed."
3698 fi
3699
3700 add_cppflags -D_ISOC99_SOURCE
3701
3702 # some compilers silently accept -std=c11, so we also need to check that the
3703 # version macro is defined properly
3704 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3705 add_cflags -std=c11
3706 else
3707 check_cflags -std=c99
3708 fi
3709
3710 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3711 #include <stdlib.h>
3712 EOF
3713 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3714 #include <stdlib.h>
3715 EOF
3716
3717 add_host_cppflags -D_ISOC99_SOURCE
3718 check_host_cflags -std=c99
3719 check_host_cflags -Wall
3720 check_host_cflags -O3
3721
3722 check_64bit(){
3723 arch32=$1
3724 arch64=$2
3725 expr=$3
3726 check_code cc "" "int test[2*($expr) - 1]" &&
3727 subarch=$arch64 || subarch=$arch32
3728 }
3729
3730 case "$arch" in
3731 aarch64|alpha|ia64)
3732 spic=$shared
3733 ;;
3734 mips)
3735 check_64bit mips mips64 '_MIPS_SIM > 1'
3736 spic=$shared
3737 ;;
3738 parisc)
3739 check_64bit parisc parisc64 'sizeof(void *) > 4'
3740 spic=$shared
3741 ;;
3742 ppc)
3743 check_64bit ppc ppc64 'sizeof(void *) > 4'
3744 spic=$shared
3745 ;;
3746 s390)
3747 check_64bit s390 s390x 'sizeof(void *) > 4'
3748 spic=$shared
3749 ;;
3750 sparc)
3751 check_64bit sparc sparc64 'sizeof(void *) > 4'
3752 spic=$shared
3753 ;;
3754 x86)
3755 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3756 if test "$subarch" = "x86_64"; then
3757 spic=$shared
3758 fi
3759 ;;
3760 esac
3761
3762 enable $subarch
3763 enabled spic && enable_weak pic
3764
3765 # OS specific
3766 case $target_os in
3767 aix)
3768 SHFLAGS=-shared
3769 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3770 enabled shared && add_ldflags -Wl,-brtl
3771 ;;
3772 android)
3773 disable symver
3774 enable section_data_rel_ro
3775 SLIB_INSTALL_NAME='$(SLIBNAME)'
3776 SLIB_INSTALL_LINKS=
3777 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3778 ;;
3779 haiku)
3780 prefix_default="/boot/common"
3781 network_extralibs="-lnetwork"
3782 host_libs=
3783 ;;
3784 sunos)
3785 SHFLAGS='-shared -Wl,-h,$$(@F)'
3786 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3787 network_extralibs="-lsocket -lnsl"
3788 # When using suncc to build, the Solaris linker will mark
3789 # an executable with each instruction set encountered by
3790 # the Solaris assembler. As our libraries contain their own
3791 # guards for processor-specific code, instead suppress
3792 # generation of the HWCAPS ELF section on Solaris x86 only.
3793 enabled_all suncc x86 &&
3794 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3795 add_ldflags -Wl,-M,mapfile
3796 nm_default='nm -P -g'
3797 version_script='-M'
3798 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3799 ;;
3800 netbsd)
3801 disable symver
3802 oss_indev_extralibs="-lossaudio"
3803 oss_outdev_extralibs="-lossaudio"
3804 ;;
3805 openbsd|bitrig)
3806 disable symver
3807 SHFLAGS='-shared'
3808 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3809 SLIB_INSTALL_LINKS=
3810 oss_indev_extralibs="-lossaudio"
3811 oss_outdev_extralibs="-lossaudio"
3812 ;;
3813 dragonfly)
3814 disable symver
3815 ;;
3816 freebsd)
3817 ;;
3818 bsd/os)
3819 add_extralibs -lpoll -lgnugetopt
3820 ;;
3821 darwin)
3822 enabled ppc && add_asflags -force_cpusubtype_ALL
3823 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3824 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3825 add_ldflags -Wl,-dynamic,-search_paths_first
3826 SLIBSUF=".dylib"
3827 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3828 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3829 objformat="macho"
3830 enabled x86_64 && objformat="macho64"
3831 enabled_any pic shared ||
3832 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3833 check_header dispatch/dispatch.h &&
3834 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3835 ;;
3836 msys*)
3837 die "Native MSYS builds are discouraged, please use the MINGW environment."
3838 ;;
3839 mingw32*|mingw64*)
3840 if test $target_os = "mingw32ce"; then
3841 disable network
3842 else
3843 target_os=mingw32
3844 fi
3845 LIBTARGET=i386
3846 if enabled x86_64; then
3847 LIBTARGET="i386:x86-64"
3848 elif enabled arm; then
3849 LIBTARGET=arm-wince
3850 fi
3851 check_ldflags -Wl,--nxcompat
3852 check_ldflags -Wl,--dynamicbase
3853 shlibdir_default="$bindir_default"
3854 SLIBPREF=""
3855 SLIBSUF=".dll"
3856 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3857 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3858 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3859 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3860 SLIB_INSTALL_LINKS=
3861 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3862 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3863 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3864 objformat="win32"
3865 dlltool="${cross_prefix}dlltool"
3866 ranlib=:
3867 enable dos_paths
3868 ;;
3869 win32|win64)
3870 disable symver
3871 if enabled shared; then
3872 # Link to the import library instead of the normal static library
3873 # for shared libs.
3874 LD_LIB='%.lib'
3875 # Cannot build both shared and static libs with MSVC or icl.
3876 disable static
3877 fi
3878 shlibdir_default="$bindir_default"
3879 SLIBPREF=""
3880 SLIBSUF=".dll"
3881 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3882 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3883 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3884 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3885 SLIB_INSTALL_LINKS=
3886 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3887 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3888 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3889 objformat="win32"
3890 ranlib=:
3891 enable dos_paths
3892 ;;
3893 cygwin*)
3894 target_os=cygwin
3895 shlibdir_default="$bindir_default"
3896 SLIBPREF="cyg"
3897 SLIBSUF=".dll"
3898 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3899 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3900 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3901 SLIB_INSTALL_LINKS=
3902 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3903 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3904 objformat="win32"
3905 enable dos_paths
3906 ;;
3907 *-dos|freedos|opendos)
3908 network_extralibs="-lsocket"
3909 objformat="coff"
3910 enable dos_paths
3911 add_cppflags -U__STRICT_ANSI__
3912 ;;
3913 linux)
3914 enable dv1394
3915 enable section_data_rel_ro
3916 ;;
3917 irix*)
3918 target_os=irix
3919 ranlib="echo ignoring ranlib"
3920 ;;
3921 os/2*)
3922 ln_s="cp -f"
3923 objformat="aout"
3924 add_cppflags -D_GNU_SOURCE
3925 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3926 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3927 LIBSUF="_s.a"
3928 SLIBPREF=""
3929 SLIBSUF=".dll"
3930 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3931 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3932 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3933 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3934 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3935 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3936 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3937 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3938 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3939 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3940 enable dos_paths
3941 ;;
3942 gnu/kfreebsd)
3943 add_cppflags -D_BSD_SOURCE
3944 ;;
3945 gnu)
3946 ;;
3947 qnx)
3948 add_cppflags -D_QNX_SOURCE
3949 network_extralibs="-lsocket"
3950 ;;
3951 symbian)
3952 SLIBSUF=".dll"
3953 enable dos_paths
3954 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3955 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3956 add_ldflags -Wl,--target1-abs,--no-undefined \
3957 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3958 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3959 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3960 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3961 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3962 ;;
3963 osf1)
3964 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3965 ;;
3966 minix)
3967 ;;
3968 plan9)
3969 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3970 -D_REENTRANT_SOURCE \
3971 -D_RESEARCH_SOURCE \
3972 -DFD_SETSIZE=96 \
3973 -DHAVE_SOCK_OPTS
3974 add_compat strtod.o strtod=avpriv_strtod
3975 network_extralibs='-lbsd'
3976 exeobjs=compat/plan9/main.o
3977 cp_f='cp'
3978 ;;
3979 none)
3980 ;;
3981 *)
3982 die "Unknown OS '$target_os'."
3983 ;;
3984 esac
3985
3986 # determine libc flavour
3987
3988 probe_libc(){
3989 pfx=$1
3990 pfx_no_=${pfx%_}
3991 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3992 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3993 eval ${pfx}libc_type=uclibc
3994 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3995 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3996 eval ${pfx}libc_type=glibc
3997 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3998 # MinGW headers can be installed on Cygwin, so check for newlib first.
3999 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4000 eval ${pfx}libc_type=newlib
4001 add_${pfx}cppflags -U__STRICT_ANSI__
4002 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4003 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4004 eval ${pfx}libc_type=mingw64
4005 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4006 eval test \$${pfx_no_}cc_type = "gcc" &&
4007 add_${pfx}cppflags -D__printf__=__gnu_printf__
4008 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4009 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4010 eval ${pfx}libc_type=mingw32
4011 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4012 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4013 die "ERROR: MinGW32 runtime version must be >= 3.15."
4014 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4015 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4016 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4017 eval test \$${pfx_no_}cc_type = "gcc" &&
4018 add_${pfx}cppflags -D__printf__=__gnu_printf__
4019 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4020 eval ${pfx}libc_type=msvcrt
4021 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4022 if [ "$pfx" = host_ ]; then
4023 add_host_cppflags -Dsnprintf=_snprintf
4024 else
4025 add_compat strtod.o strtod=avpriv_strtod
4026 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4027 _snprintf=avpriv_snprintf \
4028 vsnprintf=avpriv_vsnprintf
4029 fi
4030 fi
4031 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4032 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4033 # 0x601 by default unless something else is set by the user.
4034 # This can easily lead to us detecting functions only present
4035 # in such new versions and producing binaries requiring windows 7.0.
4036 # Therefore explicitly set the default to XP unless the user has
4037 # set something else on the command line.
4038 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4039 # family. For these cases, configure is free to use any functions
4040 # found in the SDK headers by default. (Alternatively, we could force
4041 # _WIN32_WINNT to 0x0602 in that case.)
4042 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4043 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4044 #ifdef WINAPI_FAMILY
4045 #include <winapifamily.h>
4046 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4047 #error not desktop
4048 #endif
4049 #endif
4050 EOF
4051 if [ "$pfx" = "" ]; then
4052 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4053 fi
4054 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4055 eval ${pfx}libc_type=klibc
4056 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4057 eval ${pfx}libc_type=bionic
4058 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4059 eval ${pfx}libc_type=solaris
4060 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4061 else
4062 eval ${pfx}libc_type=default
4063 add_${pfx}cppflags -D_DEFAULT_SOURCE
4064 fi
4065 }
4066
4067 probe_libc
4068 test -n "$libc_type" && enable libc_$libc_type
4069 probe_libc host_
4070 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4071
4072 case $libc_type in
4073 bionic)
4074 add_compat strtod.o strtod=avpriv_strtod
4075 ;;
4076 esac
4077
4078 # hacks for compiler/libc/os combinations
4079
4080 if enabled_all tms470 libc_glibc; then
4081 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4082 add_cppflags -D__USER_LABEL_PREFIX__=
4083 add_cppflags -D__builtin_memset=memset
4084 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4085 add_cflags -pds=48 # incompatible redefinition of macro
4086 fi
4087
4088 if enabled_all ccc libc_glibc; then
4089 add_ldflags -Wl,-z,now # calls to libots crash without this
4090 fi
4091
4092 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4093 add_cppflags '-I\$(SRC_PATH)/compat/float'
4094
4095 esc(){
4096 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4097 }
4098
4099 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4100
4101 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4102
4103 set_default $PATHS_LIST
4104 set_default nm
4105
4106 # we need to build at least one lib type
4107 if ! enabled_any static shared; then
4108 cat <<EOF
4109 At least one library type must be built.
4110 Specify --enable-static to build the static libraries or --enable-shared to
4111 build the shared libraries as well. To only build the shared libraries specify
4112 --disable-static in addition to --enable-shared.
4113 EOF
4114 exit 1
4115 fi
4116
4117 die_license_disabled() {
4118 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4119 }
4120
4121 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4122 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4123 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4124
4125 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4126
4127 disabled optimizations || check_cflags -fomit-frame-pointer
4128
4129 enable_weak_pic() {
4130 disabled pic && return
4131 enable pic
4132 add_cppflags -DPIC
4133 case "$target_os" in
4134 mingw*|cygwin*)
4135 ;;
4136 *)
4137 add_cflags -fPIC
4138 ;;
4139 esac
4140 add_asflags -fPIC
4141 }
4142
4143 enabled pic && enable_weak_pic
4144
4145 check_cc <<EOF || die "Symbol mangling check failed."
4146 int ff_extern;
4147 EOF
4148 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4149 extern_prefix=${sym%%ff_extern*}
4150
4151 check_cc <<EOF && enable_weak inline_asm
4152 void foo(void) { __asm__ volatile ("" ::); }
4153 EOF
4154
4155 _restrict=
4156 for restrict_keyword in restrict __restrict__ __restrict; do
4157 check_cc <<EOF && _restrict=$restrict_keyword && break
4158 void foo(char * $restrict_keyword p);
4159 EOF
4160 done
4161
4162 check_cc <<EOF && enable pragma_deprecated
4163 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4164 EOF
4165
4166 check_cc <<EOF && enable attribute_packed
4167 struct { int x; } __attribute__((packed)) x;
4168 EOF
4169
4170 check_cc <<EOF && enable attribute_may_alias
4171 union { int x; } __attribute__((may_alias)) x;
4172 EOF
4173
4174 check_cc <<EOF || die "endian test failed"
4175 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4176 EOF
4177 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4178
4179 check_gas() {
4180 log "check_gas using '$as' as AS"
4181 # :vararg is used on aarch64, arm and ppc altivec
4182 check_as <<EOF || return 1
4183 .macro m n, y:vararg=0
4184 \n: .int \y
4185 .endm
4186 m x
4187 EOF
4188 # .altmacro is only used in arm asm
4189 ! enabled arm || check_as <<EOF || return 1
4190 .altmacro
4191 EOF
4192 enable gnu_as
4193 return 0
4194 }
4195
4196 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4197 nogas=:
4198 enabled_any arm aarch64 && nogas=die
4199 enabled_all ppc altivec && nogas=warn
4200 as_noop=-v
4201
4202 case $as_type in
4203 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4204 gcc) gaspp_as_type=gas ;;
4205 *) gaspp_as_type=$as_type ;;
4206 esac
4207
4208 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4209
4210 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4211 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4212
4213 if ! check_gas ; then
4214 as=${gas:=$as}
4215 check_gas || \
4216 $nogas "GNU assembler not found, install/update gas-preprocessor"
4217 fi
4218
4219 check_as <<EOF && enable as_func
4220 .func test
4221 .endfunc
4222 EOF
4223 fi
4224
4225 check_inline_asm inline_asm_labels '"1:\n"'
4226
4227 if enabled aarch64; then
4228 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4229 # internal assembler in clang 3.3 does not support this instruction
4230 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4231 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4232
4233 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4234
4235 elif enabled alpha; then
4236
4237 check_cflags -mieee
4238
4239 elif enabled arm; then
4240
4241 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4242 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4243 enabled thumb && check_cflags -mthumb || check_cflags -marm
4244
4245 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4246 enable vfp_args
4247 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4248 enable vfp_args
4249 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4250 case "${cross_prefix:-$cc}" in
4251 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4252 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4253 __asm__ (".eabi_attribute 28, 1");
4254 int main(void) { return 0; }
4255 EOF
4256 esac
4257 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4258 fi
4259
4260 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4261 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4262 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4263 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4264 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4265 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4266
4267 [ $target_os = linux ] || [ $target_os = android ] ||
4268 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4269 $ARCH_EXT_LIST_ARM
4270
4271 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4272
4273 check_as <<EOF && enable as_dn_directive
4274 ra .dn d0.i16
4275 .unreq ra
4276 EOF
4277 check_as <<EOF && enable as_fpu_directive
4278 .fpu neon
4279 EOF
4280
4281 # llvm's integrated assembler supports .object_arch from llvm 3.5
4282 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4283 .object_arch armv4
4284 EOF
4285
4286 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4287
4288 elif enabled mips; then
4289
4290 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4291
4292 # make sure that only an instruction set is enabled
4293 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4294
4295 if enabled mips64; then
4296 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4297 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4298 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4299 else
4300 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4301 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4302 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4303 fi
4304
4305 elif enabled parisc; then
4306
4307 if enabled gcc; then
4308 case $($cc -dumpversion) in
4309 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4310 esac
4311 fi
4312
4313 elif enabled ppc; then
4314
4315 enable local_aligned_8 local_aligned_16 local_aligned_32
4316
4317 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4318 check_inline_asm ibm_asm '"add 0, 0, 0"'
4319 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4320 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4321
4322 # AltiVec flags: The FSF version of GCC differs from the Apple version
4323 if enabled altivec; then
4324 check_cflags -maltivec -mabi=altivec &&
4325 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4326 check_cflags -faltivec
4327
4328 # check if our compiler supports Motorola AltiVec C API
4329 check_cc <<EOF || disable altivec
4330 $inc_altivec_h
4331 int main(void) {
4332 vector signed int v1 = (vector signed int) { 0 };
4333 vector signed int v2 = (vector signed int) { 1 };
4334 v1 = vec_add(v1, v2);
4335 return 0;
4336 }
4337 EOF
4338
4339 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4340 fi
4341
4342 if enabled vsx; then
4343 check_cflags -mvsx &&
4344 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4345 fi
4346
4347 if enabled power8; then
4348 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4349 fi
4350
4351 elif enabled x86; then
4352
4353 check_builtin rdtsc intrin.h "__rdtsc()"
4354 check_builtin mm_empty mmintrin.h "_mm_empty()"
4355
4356 enable local_aligned_8 local_aligned_16 local_aligned_32
4357
4358 # check whether EBP is available on x86
4359 # As 'i' is stored on the stack, this program will crash
4360 # if the base pointer is used to access it because the
4361 # base pointer is cleared in the inline assembly code.
4362 check_exec_crash <<EOF && enable ebp_available
4363 volatile int i=0;
4364 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4365 return i;
4366 EOF
4367
4368 # check whether EBX is available on x86
4369 check_inline_asm ebx_available '""::"b"(0)' &&
4370 check_inline_asm ebx_available '"":::"%ebx"'
4371
4372 # check whether xmm clobbers are supported
4373 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4374
4375 # check whether binutils is new enough to compile SSSE3/MMXEXT
4376 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4377 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4378
4379 if ! disabled_any asm mmx yasm; then