4ad9a2bc0e7f53b90b3f7179ec356cf401e3eecc
[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-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-frei0r enable frei0r video filtering
183 --enable-gnutls enable gnutls [no]
184 --enable-libbs2b enable bs2b DSP library [no]
185 --enable-libcdio enable audio CD grabbing with libcdio
186 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
187 and libraw1394 [no]
188 --enable-libdcadec enable DCA decoding via libdcadec [no]
189 --enable-libfaac enable AAC encoding via libfaac [no]
190 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
191 --enable-libfreetype enable libfreetype [no]
192 --enable-libgsm enable GSM de/encoding via libgsm [no]
193 --enable-libilbc enable iLBC de/encoding via libilbc [no]
194 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
195 --enable-libmfx enable HW acceleration through libmfx
196 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
197 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
198 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
199 --enable-libopencv enable video filtering via libopencv [no]
200 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
201 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
202 --enable-libopus enable Opus de/encoding via libopus [no]
203 --enable-libpulse enable Pulseaudio input via libpulse [no]
204 --enable-librtmp enable RTMP[E] support via librtmp [no]
205 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
206 --enable-libsnappy enable Snappy compression [no]
207 --enable-libspeex enable Speex de/encoding via libspeex [no]
208 --enable-libtheora enable Theora encoding via libtheora [no]
209 --enable-libtwolame enable MP2 encoding via libtwolame [no]
210 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
211 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
212 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
213 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
214 --enable-libwavpack enable wavpack encoding via libwavpack [no]
215 --enable-libwebp enable WebP encoding via libwebp [no]
216 --enable-libx264 enable H.264 encoding via x264 [no]
217 --enable-libx265 enable HEVC encoding via x265 [no]
218 --enable-libxavs enable AVS encoding via xavs [no]
219 --enable-libxcb enable X11 grabbing using XCB [no]
220 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
221 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
222 --enable-libxvid enable Xvid encoding via xvidcore,
223 native MPEG-4/Xvid encoder exists [no]
224 --enable-mmal enable decoding via MMAL [no]
225 --enable-nvenc enable encoding via NVENC [no]
226 --enable-openssl enable openssl [no]
227 --enable-x11grab enable X11 grabbing (legacy) [no]
228 --enable-zlib enable zlib [autodetect]
229
230 Toolchain options:
231 --arch=ARCH select architecture [$arch]
232 --cpu=CPU select the minimum required CPU (affects
233 instruction selection, may crash on older CPUs)
234 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
235 --enable-cross-compile assume a cross-compiler is used
236 --sysroot=PATH root of cross-build tree
237 --sysinclude=PATH location of cross-build system headers
238 --target-os=OS compiler targets OS [$target_os]
239 --target-exec=CMD command to run executables on target
240 --target-path=DIR path to view of build directory on target
241 --target-samples=DIR path to samples directory on target
242 --toolchain=NAME set tool defaults according to NAME
243 --nm=NM use nm tool
244 --ar=AR use archive tool AR [$ar_default]
245 --as=AS use assembler AS [$as_default]
246 --cc=CC use C compiler CC [$cc_default]
247 --objcc=OCC use ObjC compiler OCC [$cc_default]
248 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
249 --ld=LD use linker LD
250 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
251 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
252 --host-cc=HOSTCC use host C compiler HOSTCC
253 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
254 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
255 --host-ld=HOSTLD use host linker HOSTLD
256 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
257 --host-libs=HLIBS use libs HLIBS when linking for host
258 --host-os=OS compiler host OS [$target_os]
259 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
260 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
261 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
262 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
263 --extra-libs=ELIBS add ELIBS [$ELIBS]
264 --extra-version=STRING version string suffix []
265 --optflags=OPTFLAGS override optimization-related compiler flags
266 --build-suffix=SUFFIX library name suffix []
267 --enable-pic build position-independent code
268 --enable-thumb compile for Thumb instruction set
269 --enable-lto use link-time optimization
270 --env="ENV=override" override the environment variables
271
272 Advanced options (experts only):
273 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
274 --custom-allocator=NAME use a supported custom allocator
275 --disable-symver disable symbol versioning
276 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
277 --disable-safe-bitstream-reader
278 disable buffer boundary checking in bitreaders
279 (faster, but may crash)
280 --enable-memalign-hack emulate memalign, interferes with memory debuggers
281 --enable-sram allow use of on-chip SRAM
282
283 Optimization options (experts only):
284 --disable-asm disable all assembly optimizations
285 --disable-altivec disable AltiVec optimizations
286 --disable-vsx disable VSX optimizations
287 --disable-power8 disable POWER8 optimizations
288 --disable-amd3dnow disable 3DNow! optimizations
289 --disable-amd3dnowext disable 3DNow! extended optimizations
290 --disable-mmx disable MMX optimizations
291 --disable-mmxext disable MMXEXT optimizations
292 --disable-sse disable SSE optimizations
293 --disable-sse2 disable SSE2 optimizations
294 --disable-sse3 disable SSE3 optimizations
295 --disable-ssse3 disable SSSE3 optimizations
296 --disable-sse4 disable SSE4 optimizations
297 --disable-sse42 disable SSE4.2 optimizations
298 --disable-avx disable AVX optimizations
299 --disable-xop disable XOP optimizations
300 --disable-fma3 disable FMA3 optimizations
301 --disable-fma4 disable FMA4 optimizations
302 --disable-avx2 disable AVX2 optimizations
303 --disable-armv5te disable armv5te optimizations
304 --disable-armv6 disable armv6 optimizations
305 --disable-armv6t2 disable armv6t2 optimizations
306 --disable-vfp disable VFP optimizations
307 --disable-neon disable NEON optimizations
308 --disable-inline-asm disable use of inline assembly
309 --disable-yasm disable use of nasm/yasm assembly
310
311 Developer options (useful when working on Libav itself):
312 --disable-debug disable debugging symbols
313 --enable-debug=LEVEL set the debug level [$debuglevel]
314 --disable-optimizations disable compiler optimizations
315 --enable-extra-warnings enable more compiler warnings
316 --samples=PATH location of test samples for FATE, if not set use
317 \$LIBAV_SAMPLES at make invocation time.
318 --enable-neon-clobber-test check NEON registers for clobbering (should be
319 used only for debugging purposes)
320 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
321 should be used only for debugging purposes)
322 --enable-random randomly enable/disable components
323 --disable-random
324 --enable-random=LIST randomly enable/disable specific components or
325 --disable-random=LIST component groups. LIST is a comma-separated list
326 of NAME[:PROB] entries where NAME is a component
327 (group) and PROB the probability associated with
328 NAME (default 0.5).
329 --random-seed=VALUE seed value for --enable/disable-random
330 --disable-valgrind-backtrace do not print a backtrace under Valgrind
331 (only applies to --disable-optimizations builds)
332
333 NOTE: Object files are built at the place where configure is launched.
334 EOF
335 exit 0
336 }
337
338 quotes='""'
339
340 log(){
341 echo "$@" >> $logfile
342 }
343
344 log_file(){
345 log BEGIN $1
346 pr -n -t $1 >> $logfile
347 log END $1
348 }
349
350 echolog(){
351 log "$@"
352 echo "$@"
353 }
354
355 warn(){
356 log "WARNING: $*"
357 WARNINGS="${WARNINGS}WARNING: $*\n"
358 }
359
360 die(){
361 echolog "$@"
362 cat <<EOF
363
364 If you think configure made a mistake, make sure you are using the latest
365 version from Git. If the latest version fails, report the problem to the
366 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
367 EOF
368 if disabled logging; then
369 cat <<EOF
370 Rerun configure with logging enabled (do not use --disable-logging), and
371 include the log this produces with your report.
372 EOF
373 else
374 cat <<EOF
375 Include the log file "$logfile" produced by configure as this will help
376 solving the problem.
377 EOF
378 fi
379 exit 1
380 }
381
382 # Avoid locale weirdness, besides we really just want to translate ASCII.
383 toupper(){
384 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
385 }
386
387 tolower(){
388 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
389 }
390
391 c_escape(){
392 echo "$*" | sed 's/["\\]/\\\0/g'
393 }
394
395 sh_quote(){
396 v=$(echo "$1" | sed "s/'/'\\\\''/g")
397 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
398 echo "$v"
399 }
400
401 cleanws(){
402 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
403 }
404
405 filter(){
406 pat=$1
407 shift
408 for v; do
409 eval "case $v in $pat) echo $v ;; esac"
410 done
411 }
412
413 filter_out(){
414 pat=$1
415 shift
416 for v; do
417 eval "case $v in $pat) ;; *) echo $v ;; esac"
418 done
419 }
420
421 map(){
422 m=$1
423 shift
424 for v; do eval $m; done
425 }
426
427 add_suffix(){
428 suffix=$1
429 shift
430 for v; do echo ${v}${suffix}; done
431 }
432
433 set_all(){
434 value=$1
435 shift
436 for var in $*; do
437 eval $var=$value
438 done
439 }
440
441 set_weak(){
442 value=$1
443 shift
444 for var; do
445 eval : \${$var:=$value}
446 done
447 }
448
449 sanitize_var_name(){
450 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
451 }
452
453 set_safe(){
454 var=$1
455 shift
456 eval $(sanitize_var_name "$var")='$*'
457 }
458
459 get_safe(){
460 eval echo \$$(sanitize_var_name "$1")
461 }
462
463 pushvar(){
464 for pvar in $*; do
465 eval level=\${${pvar}_level:=0}
466 eval ${pvar}_${level}="\$$pvar"
467 eval ${pvar}_level=$(($level+1))
468 done
469 }
470
471 popvar(){
472 for pvar in $*; do
473 eval level=\${${pvar}_level:-0}
474 test $level = 0 && continue
475 eval level=$(($level-1))
476 eval $pvar="\${${pvar}_${level}}"
477 eval ${pvar}_level=$level
478 eval unset ${pvar}_${level}
479 done
480 }
481
482 enable(){
483 set_all yes $*
484 }
485
486 disable(){
487 set_all no $*
488 }
489
490 enable_weak(){
491 set_weak yes $*
492 }
493
494 disable_weak(){
495 set_weak no $*
496 }
497
498 enable_safe(){
499 for var; do
500 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
501 done
502 }
503
504 disable_safe(){
505 for var; do
506 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
507 done
508 }
509
510 do_enable_deep(){
511 for var; do
512 enabled $var && continue
513 eval sel="\$${var}_select"
514 eval sgs="\$${var}_suggest"
515 pushvar var sgs
516 enable_deep $sel
517 popvar sgs
518 enable_deep_weak $sgs
519 popvar var
520 done
521 }
522
523 enable_deep(){
524 do_enable_deep $*
525 enable $*
526 }
527
528 enable_deep_weak(){
529 for var; do
530 disabled $var && continue
531 pushvar var
532 do_enable_deep $var
533 popvar var
534 enable_weak $var
535 done
536 }
537
538 enabled(){
539 test "${1#!}" = "$1" && op== || op=!=
540 eval test "x\$${1#!}" $op "xyes"
541 }
542
543 disabled(){
544 test "${1#!}" = "$1" && op== || op=!=
545 eval test "x\$${1#!}" $op "xno"
546 }
547
548 enabled_all(){
549 for opt; do
550 enabled $opt || return 1
551 done
552 }
553
554 disabled_all(){
555 for opt; do
556 disabled $opt || return 1
557 done
558 }
559
560 enabled_any(){
561 for opt; do
562 enabled $opt && return 0
563 done
564 }
565
566 disabled_any(){
567 for opt; do
568 disabled $opt && return 0
569 done
570 return 1
571 }
572
573 set_default(){
574 for opt; do
575 eval : \${$opt:=\$${opt}_default}
576 done
577 }
578
579 is_in(){
580 value=$1
581 shift
582 for var in $*; do
583 [ $var = $value ] && return 0
584 done
585 return 1
586 }
587
588 do_check_deps(){
589 for cfg; do
590 cfg="${cfg#!}"
591 enabled ${cfg}_checking && die "Circular dependency for $cfg."
592 disabled ${cfg}_checking && continue
593 enable ${cfg}_checking
594 append allopts $cfg
595
596 eval dep_all="\$${cfg}_deps"
597 eval dep_any="\$${cfg}_deps_any"
598 eval dep_sel="\$${cfg}_select"
599 eval dep_sgs="\$${cfg}_suggest"
600 eval dep_ifa="\$${cfg}_if"
601 eval dep_ifn="\$${cfg}_if_any"
602
603 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
604 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
605 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
606
607 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
608 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
609 enabled_all $dep_all || disable $cfg
610 enabled_any $dep_any || disable $cfg
611 disabled_any $dep_sel && disable $cfg
612
613 if enabled $cfg; then
614 enable_deep $dep_sel
615 enable_deep_weak $dep_sgs
616 fi
617
618 disable ${cfg}_checking
619 done
620 }
621
622 check_deps(){
623 unset allopts
624
625 do_check_deps "$@"
626
627 for cfg in $allopts; do
628 enabled $cfg || continue
629 eval dep_extralibs="\$${cfg}_extralibs"
630 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
631 done
632 }
633
634 print_config(){
635 pfx=$1
636 files=$2
637 shift 2
638 map 'eval echo "$v \${$v:-no}"' "$@" |
639 awk "BEGIN { split(\"$files\", files) }
640 {
641 c = \"$pfx\" toupper(\$1);
642 v = \$2;
643 sub(/yes/, 1, v);
644 sub(/no/, 0, v);
645 for (f in files) {
646 file = files[f];
647 if (file ~ /\\.h\$/) {
648 printf(\"#define %s %d\\n\", c, v) >>file;
649 } else if (file ~ /\\.asm\$/) {
650 printf(\"%%define %s %d\\n\", c, v) >>file;
651 } else if (file ~ /\\.mak\$/) {
652 n = -v ? \"\" : \"!\";
653 printf(\"%s%s=yes\\n\", n, c) >>file;
654 }
655 }
656 }"
657 }
658
659 print_enabled(){
660 suf=$1
661 shift
662 for v; do
663 enabled $v && printf "%s\n" ${v%$suf};
664 done
665 }
666
667 append(){
668 var=$1
669 shift
670 eval "$var=\"\$$var $*\""
671 }
672
673 prepend(){
674 var=$1
675 shift
676 eval "$var=\"$* \$$var\""
677 }
678
679 unique(){
680 var=$1
681 uniq_list=""
682 for tok in $(eval echo \$$var); do
683 uniq_list="$(filter_out $tok $uniq_list) $tok"
684 done
685 eval "$var=\"${uniq_list}\""
686 }
687
688 add_cppflags(){
689 append CPPFLAGS "$@"
690 }
691
692 add_cflags(){
693 append CFLAGS $($cflags_filter "$@")
694 }
695
696 add_asflags(){
697 append ASFLAGS $($asflags_filter "$@")
698 }
699
700 add_objcflags(){
701 append OBJCFLAGS $($objcflags_filter "$@")
702 }
703
704 add_ldflags(){
705 append LDFLAGS $($ldflags_filter "$@")
706 }
707
708 add_ldexeflags(){
709 append LDEXEFLAGS $($ldflags_filter "$@")
710 }
711
712 add_stripflags(){
713 append STRIPFLAGS "$@"
714 }
715
716 add_extralibs(){
717 prepend extralibs $($ldflags_filter "$@")
718 }
719
720 add_host_cppflags(){
721 append host_cppflags "$@"
722 }
723
724 add_host_cflags(){
725 append host_cflags $($host_cflags_filter "$@")
726 }
727
728 add_host_ldflags(){
729 append host_ldflags $($host_ldflags_filter "$@")
730 }
731
732 add_compat(){
733 append compat_objs $1
734 shift
735 map 'add_cppflags -D$v' "$@"
736 }
737
738 check_cmd(){
739 log "$@"
740 "$@" >> $logfile 2>&1
741 }
742
743 cc_o(){
744 eval printf '%s\\n' $CC_O
745 }
746
747 cc_e(){
748 eval printf '%s\\n' $CC_E
749 }
750
751 check_cc(){
752 log check_cc "$@"
753 cat > $TMPC
754 log_file $TMPC
755 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
756 }
757
758 check_objcc(){
759 log check_objcc "$@"
760 cat > $TMPC
761 log_file $TMPC
762 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
763 }
764
765 check_cpp(){
766 log check_cpp "$@"
767 cat > $TMPC
768 log_file $TMPC
769 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
770 }
771
772 as_o(){
773 eval printf '%s\\n' $AS_O
774 }
775
776 check_as(){
777 log check_as "$@"
778 cat > $TMPS
779 log_file $TMPS
780 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
781 }
782
783 check_inline_asm(){
784 log check_inline_asm "$@"
785 name="$1"
786 code="$2"
787 shift 2
788 disable $name
789 check_cc "$@" <<EOF && enable $name
790 void foo(void){ __asm__ volatile($code); }
791 EOF
792 }
793
794 check_insn(){
795 log check_insn "$@"
796 check_inline_asm ${1}_inline "\"$2\""
797 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
798 }
799
800 check_yasm(){
801 log check_yasm "$@"
802 echo "$1" > $TMPS
803 log_file $TMPS
804 shift 1
805 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
806 }
807
808 ld_o(){
809 eval printf '%s\\n' $LD_O
810 }
811
812 check_ld(){
813 log check_ld "$@"
814 flags=$(filter_out '-l*' "$@")
815 libs=$(filter '-l*' "$@")
816 check_cc $($cflags_filter $flags) || return
817 flags=$($ldflags_filter $flags)
818 libs=$($ldflags_filter $libs)
819 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
820 }
821
822 print_include(){
823 hdr=$1
824 test "${hdr%.h}" = "${hdr}" &&
825 echo "#include $hdr" ||
826 echo "#include <$hdr>"
827 }
828
829 check_code(){
830 log check_code "$@"
831 check=$1
832 headers=$2
833 code=$3
834 shift 3
835 {
836 for hdr in $headers; do
837 print_include $hdr
838 done
839 echo "int main(void) { $code; return 0; }"
840 } | check_$check "$@"
841 }
842
843 check_cppflags(){
844 log check_cppflags "$@"
845 check_cc "$@" <<EOF && append CPPFLAGS "$@"
846 int x;
847 EOF
848 }
849
850 test_cflags(){
851 log test_cflags "$@"
852 set -- $($cflags_filter "$@")
853 check_cc "$@" <<EOF
854 int x;
855 EOF
856 }
857
858 check_cflags(){
859 log check_cflags "$@"
860 test_cflags "$@" && add_cflags "$@"
861 }
862
863 test_objcflags(){
864 log test_cflags "$@"
865 set -- $($cflags_filter "$@")
866 check_objcc "$@" <<EOF
867 int x;
868 EOF
869 }
870
871 check_objcflags(){
872 log check_cflags "$@"
873 test_objcflags "$@" && add_objcflags "$@"
874 }
875
876 test_ldflags(){
877 log test_ldflags "$@"
878 check_ld "$@" <<EOF
879 int main(void){ return 0; }
880 EOF
881 }
882
883 check_ldflags(){
884 log check_ldflags "$@"
885 test_ldflags "$@" && add_ldflags "$@"
886 }
887
888 test_stripflags(){
889 log test_stripflags "$@"
890 # call check_cc to get a fresh TMPO
891 check_cc <<EOF
892 int main(void) { return 0; }
893 EOF
894 check_cmd $strip $STRIPFLAGS "$@" $TMPO
895 }
896
897 check_stripflags(){
898 log check_stripflags "$@"
899 test_stripflags "$@" && add_stripflags "$@"
900 }
901
902 check_header(){
903 log check_header "$@"
904 header=$1
905 shift
906 disable_safe $header
907 check_cpp "$@" <<EOF && enable_safe $header
908 #include <$header>
909 int x;
910 EOF
911 }
912
913 check_func(){
914 log check_func "$@"
915 func=$1
916 shift
917 disable $func
918 check_ld "$@" <<EOF && enable $func
919 extern int $func();
920 int main(void){ $func(); }
921 EOF
922 }
923
924 check_mathfunc(){
925 log check_mathfunc "$@"
926 func=$1
927 narg=$2
928 shift 2
929 test $narg = 2 && args="f, g" || args="f"
930 disable $func
931 check_ld "$@" <<EOF && enable $func
932 #include <math.h>
933 float foo(float f, float g) { return $func($args); }
934 int main(void){ return 0; }
935 EOF
936 }
937
938 check_func_headers(){
939 log check_func_headers "$@"
940 headers=$1
941 funcs=$2
942 shift 2
943 {
944 for hdr in $headers; do
945 print_include $hdr
946 done
947 for func in $funcs; do
948 echo "long check_$func(void) { return (long) $func; }"
949 done
950 echo "int main(void) { return 0; }"
951 } | check_ld "$@" && enable $funcs && enable_safe $headers
952 }
953
954 check_cpp_condition(){
955 log check_cpp_condition "$@"
956 header=$1
957 condition=$2
958 shift 2
959 check_cpp "$@" <<EOF
960 #include <$header>
961 #if !($condition)
962 #error "unsatisfied condition: $condition"
963 #endif
964 EOF
965 }
966
967 check_lib(){
968 log check_lib "$@"
969 header="$1"
970 func="$2"
971 shift 2
972 check_header $header && check_func $func "$@" && add_extralibs "$@"
973 }
974
975 check_lib2(){
976 log check_lib2 "$@"
977 headers="$1"
978 funcs="$2"
979 shift 2
980 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
981 }
982
983 check_pkg_config(){
984 log check_pkg_config "$@"
985 pkg="$1"
986 headers="$2"
987 funcs="$3"
988 shift 3
989 check_cmd $pkg_config --exists --print-errors $pkg || return
990 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
991 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
992 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
993 set_safe "${pkg}_cflags" $pkg_cflags &&
994 set_safe "${pkg}_libs" $pkg_libs
995 }
996
997 check_exec(){
998 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
999 }
1000
1001 check_exec_crash(){
1002 code=$(cat)
1003
1004 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1005 # are safe but may not be available everywhere. Thus we use
1006 # raise(SIGTERM) instead. The check is run in a subshell so we
1007 # can redirect the "Terminated" message from the shell. SIGBUS
1008 # is not defined by standard C so it is used conditionally.
1009
1010 (check_exec "$@") >> $logfile 2>&1 <<EOF
1011 #include <signal.h>
1012 static void sighandler(int sig){
1013 raise(SIGTERM);
1014 }
1015 int foo(void){
1016 $code
1017 }
1018 int (*func_ptr)(void) = foo;
1019 int main(void){
1020 signal(SIGILL, sighandler);
1021 signal(SIGFPE, sighandler);
1022 signal(SIGSEGV, sighandler);
1023 #ifdef SIGBUS
1024 signal(SIGBUS, sighandler);
1025 #endif
1026 return func_ptr();
1027 }
1028 EOF
1029 }
1030
1031 check_type(){
1032 log check_type "$@"
1033 headers=$1
1034 type=$2
1035 shift 2
1036 disable_safe "$type"
1037 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1038 }
1039
1040 check_struct(){
1041 log check_struct "$@"
1042 headers=$1
1043 struct=$2
1044 member=$3
1045 shift 3
1046 disable_safe "${struct}_${member}"
1047 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1048 enable_safe "${struct}_${member}"
1049 }
1050
1051 check_builtin(){
1052 log check_builtin "$@"
1053 name=$1
1054 headers=$2
1055 builtin=$3
1056 shift 3
1057 disable "$name"
1058 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1059 }
1060
1061 check_compile_assert(){
1062 log check_compile_assert "$@"
1063 name=$1
1064 headers=$2
1065 condition=$3
1066 shift 3
1067 disable "$name"
1068 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1069 }
1070
1071 require(){
1072 name="$1"
1073 header="$2"
1074 func="$3"
1075 shift 3
1076 check_lib $header $func "$@" || die "ERROR: $name not found"
1077 }
1078
1079 require2(){
1080 name="$1"
1081 headers="$2"
1082 func="$3"
1083 shift 3
1084 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1085 }
1086
1087 require_pkg_config(){
1088 pkg="$1"
1089 check_pkg_config "$@" || die "ERROR: $pkg not found"
1090 add_cflags $(get_safe "${pkg}_cflags")
1091 add_extralibs $(get_safe "${pkg}_libs")
1092 }
1093
1094 hostcc_e(){
1095 eval printf '%s\\n' $HOSTCC_E
1096 }
1097
1098 hostcc_o(){
1099 eval printf '%s\\n' $HOSTCC_O
1100 }
1101
1102 check_host_cc(){
1103 log check_host_cc "$@"
1104 cat > $TMPC
1105 log_file $TMPC
1106 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1107 }
1108
1109 check_host_cpp(){
1110 log check_host_cpp "$@"
1111 cat > $TMPC
1112 log_file $TMPC
1113 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1114 }
1115
1116 check_host_cppflags(){
1117 log check_host_cppflags "$@"
1118 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1119 int x;
1120 EOF
1121 }
1122
1123 check_host_cflags(){
1124 log check_host_cflags "$@"
1125 set -- $($host_cflags_filter "$@")
1126 check_host_cc "$@" <<EOF && append host_cflags "$@"
1127 int x;
1128 EOF
1129 }
1130
1131 check_host_cpp_condition(){
1132 log check_host_cpp_condition "$@"
1133 header=$1
1134 condition=$2
1135 shift 2
1136 check_host_cpp "$@" <<EOF
1137 #include <$header>
1138 #if !($condition)
1139 #error "unsatisfied condition: $condition"
1140 #endif
1141 EOF
1142 }
1143
1144 apply(){
1145 file=$1
1146 shift
1147 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1148 }
1149
1150 cp_if_changed(){
1151 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1152 mkdir -p "$(dirname $2)"
1153 $cp_f "$1" "$2"
1154 }
1155
1156 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1157 # system-dependent things.
1158
1159 AVCODEC_COMPONENTS="
1160 bsfs
1161 decoders
1162 encoders
1163 hwaccels
1164 parsers
1165 "
1166
1167 AVDEVICE_COMPONENTS="
1168 indevs
1169 outdevs
1170 "
1171 AVFILTER_COMPONENTS="
1172 filters
1173 "
1174 AVFORMAT_COMPONENTS="
1175 demuxers
1176 muxers
1177 protocols
1178 "
1179
1180 AVRESAMPLE_COMPONENTS=""
1181 AVUTIL_COMPONENTS=""
1182
1183 COMPONENT_LIST="
1184 $AVCODEC_COMPONENTS
1185 $AVDEVICE_COMPONENTS
1186 $AVFILTER_COMPONENTS
1187 $AVFORMAT_COMPONENTS
1188 $AVRESAMPLE_COMPONENTS
1189 $AVUTIL_COMPONENTS
1190 "
1191
1192 EXAMPLE_LIST="
1193 avcodec_example
1194 filter_audio_example
1195 metadata_example
1196 output_example
1197 qsvdec_example
1198 transcode_aac_example
1199 "
1200
1201 EXTERNAL_LIBRARY_LIST="
1202 avisynth
1203 bzlib
1204 frei0r
1205 gnutls
1206 libbs2b
1207 libcdio
1208 libdc1394
1209 libdcadec
1210 libfaac
1211 libfdk_aac
1212 libfontconfig
1213 libfreetype
1214 libgsm
1215 libilbc
1216 libkvazaar
1217 libmfx
1218 libmp3lame
1219 libopencore_amrnb
1220 libopencore_amrwb
1221 libopencv
1222 libopenh264
1223 libopenjpeg
1224 libopus
1225 libpulse
1226 librtmp
1227 libschroedinger
1228 libsnappy
1229 libspeex
1230 libtheora
1231 libtwolame
1232 libvo_aacenc
1233 libvo_amrwbenc
1234 libvorbis
1235 libvpx
1236 libwavpack
1237 libwebp
1238 libx264
1239 libx265
1240 libxavs
1241 libxcb
1242 libxcb_shm
1243 libxcb_xfixes
1244 libxvid
1245 mmal
1246 nvenc
1247 openssl
1248 x11grab
1249 zlib
1250 "
1251
1252 FEATURE_LIST="
1253 gray
1254 hardcoded_tables
1255 runtime_cpudetect
1256 safe_bitstream_reader
1257 shared
1258 small
1259 sram
1260 static
1261 swscale_alpha
1262 "
1263
1264 HWACCEL_LIST="
1265 d3d11va
1266 dxva2
1267 vaapi
1268 vda
1269 vdpau
1270 "
1271
1272 LIBRARY_LIST="
1273 avcodec
1274 avdevice
1275 avfilter
1276 avformat
1277 avresample
1278 avutil
1279 swscale
1280 "
1281
1282 LICENSE_LIST="
1283 gpl
1284 nonfree
1285 version3
1286 "
1287
1288 PROGRAM_LIST="
1289 avconv
1290 avplay
1291 avprobe
1292 "
1293
1294 SUBSYSTEM_LIST="
1295 dct
1296 doc
1297 error_resilience
1298 faan
1299 fft
1300 lsp
1301 lzo
1302 mdct
1303 network
1304 rdft
1305 "
1306
1307 CONFIG_LIST="
1308 $COMPONENT_LIST
1309 $EXAMPLE_LIST
1310 $EXTERNAL_LIBRARY_LIST
1311 $FEATURE_LIST
1312 $HWACCEL_LIST
1313 $LICENSE_LIST
1314 $LIBRARY_LIST
1315 $PROGRAM_LIST
1316 $SUBSYSTEM_LIST
1317 memalign_hack
1318 neon_clobber_test
1319 pic
1320 pod2man
1321 texi2html
1322 thumb
1323 valgrind_backtrace
1324 xmm_clobber_test
1325 "
1326
1327 THREADS_LIST="
1328 pthreads
1329 w32threads
1330 "
1331
1332 ATOMICS_LIST="
1333 atomics_gcc
1334 atomics_suncc
1335 atomics_win32
1336 "
1337
1338 ARCH_LIST="
1339 aarch64
1340 alpha
1341 arm
1342 avr32
1343 avr32_ap
1344 avr32_uc
1345 bfin
1346 ia64
1347 m68k
1348 mips
1349 mips64
1350 parisc
1351 ppc
1352 ppc64
1353 s390
1354 sh4
1355 sparc
1356 sparc64
1357 tilegx
1358 tilepro
1359 tomi
1360 x86
1361 x86_32
1362 x86_64
1363 "
1364
1365 ARCH_EXT_LIST_ARM="
1366 armv5te
1367 armv6
1368 armv6t2
1369 armv8
1370 neon
1371 vfp
1372 vfpv3
1373 "
1374
1375 ARCH_EXT_LIST_X86_SIMD="
1376 amd3dnow
1377 amd3dnowext
1378 avx
1379 avx2
1380 fma3
1381 fma4
1382 mmx
1383 mmxext
1384 sse
1385 sse2
1386 sse3
1387 sse4
1388 sse42
1389 ssse3
1390 xop
1391 "
1392
1393 ARCH_EXT_LIST_PPC="
1394 altivec
1395 dcbzl
1396 ldbrx
1397 power8
1398 ppc4xx
1399 vsx
1400 "
1401
1402 ARCH_EXT_LIST_X86="
1403 $ARCH_EXT_LIST_X86_SIMD
1404 cpunop
1405 i686
1406 "
1407
1408 ARCH_EXT_LIST_MIPS="
1409 loongson
1410 mips32r1
1411 mips64r1
1412 mips32r2
1413 mips64r2
1414 mips32r6
1415 mips64r6
1416 "
1417
1418 ARCH_EXT_LIST="
1419 $ARCH_EXT_LIST_ARM
1420 $ARCH_EXT_LIST_MIPS
1421 $ARCH_EXT_LIST_PPC
1422 $ARCH_EXT_LIST_X86
1423 vis
1424 "
1425
1426 ARCH_FEATURES="
1427 aligned_stack
1428 fast_64bit
1429 fast_clz
1430 fast_cmov
1431 local_aligned_8
1432 local_aligned_16
1433 simd_align_16
1434 "
1435
1436 BUILTIN_LIST="
1437 atomic_cas_ptr
1438 machine_rw_barrier
1439 MemoryBarrier
1440 mm_empty
1441 rdtsc
1442 sync_val_compare_and_swap
1443 "
1444 HAVE_LIST_CMDLINE="
1445 inline_asm
1446 symver
1447 yasm
1448 "
1449
1450 HAVE_LIST_PUB="
1451 bigendian
1452 fast_unaligned
1453 "
1454
1455 HEADERS_LIST="
1456 alsa_asoundlib_h
1457 altivec_h
1458 arpa_inet_h
1459 cdio_paranoia_h
1460 cdio_paranoia_paranoia_h
1461 dev_bktr_ioctl_bt848_h
1462 dev_bktr_ioctl_meteor_h
1463 dev_ic_bt8xx_h
1464 dev_video_bktr_ioctl_bt848_h
1465 dev_video_meteor_ioctl_meteor_h
1466 direct_h
1467 dlfcn_h
1468 d3d11_h
1469 dxva_h
1470 gsm_h
1471 io_h
1472 mach_mach_time_h
1473 machine_ioctl_bt848_h
1474 machine_ioctl_meteor_h
1475 malloc_h
1476 poll_h
1477 sndio_h
1478 soundcard_h
1479 sys_mman_h
1480 sys_param_h
1481 sys_resource_h
1482 sys_select_h
1483 sys_soundcard_h
1484 sys_time_h
1485 sys_un_h
1486 sys_videoio_h
1487 unistd_h
1488 valgrind_valgrind_h
1489 windows_h
1490 winsock2_h
1491 "
1492
1493 INTRINSICS_LIST="
1494 intrinsics_neon
1495 "
1496
1497 MATH_FUNCS="
1498 atanf
1499 atan2f
1500 cbrtf
1501 cosf
1502 exp2
1503 exp2f
1504 expf
1505 isinf
1506 isnan
1507 ldexpf
1508 llrint
1509 llrintf
1510 log2
1511 log2f
1512 log10f
1513 lrint
1514 lrintf
1515 powf
1516 rint
1517 round
1518 roundf
1519 sinf
1520 trunc
1521 truncf
1522 "
1523
1524 SYSTEM_FUNCS="
1525 aligned_malloc
1526 clock_gettime
1527 closesocket
1528 CommandLineToArgvW
1529 CoTaskMemFree
1530 CryptGenRandom
1531 dlopen
1532 fcntl
1533 flt_lim
1534 fork
1535 getaddrinfo
1536 gethrtime
1537 getopt
1538 GetProcessAffinityMask
1539 GetProcessMemoryInfo
1540 GetProcessTimes
1541 getrusage
1542 GetSystemTimeAsFileTime
1543 gettimeofday
1544 gmtime_r
1545 inet_aton
1546 isatty
1547 jack_port_get_latency_range
1548 LoadLibrary
1549 localtime_r
1550 mach_absolute_time
1551 MapViewOfFile
1552 memalign
1553 mkstemp
1554 mmap
1555 mprotect
1556 nanosleep
1557 posix_memalign
1558 sched_getaffinity
1559 SetConsoleTextAttribute
1560 setmode
1561 setrlimit
1562 Sleep
1563 strerror_r
1564 sysconf
1565 sysctl
1566 usleep
1567 VirtualAlloc
1568 "
1569
1570 TOOLCHAIN_FEATURES="
1571 as_dn_directive
1572 as_func
1573 as_object_arch
1574 asm_mod_q
1575 attribute_may_alias
1576 attribute_packed
1577 ebp_available
1578 ebx_available
1579 gnu_as
1580 ibm_asm
1581 inline_asm_labels
1582 pragma_deprecated
1583 symver_asm_label
1584 symver_gnu_asm
1585 vfp_args
1586 xform_asm
1587 xmm_clobbers
1588 "
1589
1590 TYPES_LIST="
1591 CONDITION_VARIABLE_Ptr
1592 socklen_t
1593 struct_addrinfo
1594 struct_group_source_req
1595 struct_ip_mreq_source
1596 struct_ipv6_mreq
1597 struct_pollfd
1598 struct_rusage_ru_maxrss
1599 struct_sockaddr_in6
1600 struct_sockaddr_sa_len
1601 struct_sockaddr_storage
1602 struct_v4l2_frmivalenum_discrete
1603 "
1604
1605 HAVE_LIST="
1606 $ARCH_EXT_LIST
1607 $(add_suffix _external $ARCH_EXT_LIST)
1608 $(add_suffix _inline $ARCH_EXT_LIST)
1609 $ARCH_FEATURES
1610 $ATOMICS_LIST
1611 $BUILTIN_LIST
1612 $HAVE_LIST_CMDLINE
1613 $HAVE_LIST_PUB
1614 $HEADERS_LIST
1615 $INTRINSICS_LIST
1616 $MATH_FUNCS
1617 $SYSTEM_FUNCS
1618 $THREADS_LIST
1619 $TOOLCHAIN_FEATURES
1620 $TYPES_LIST
1621 atomics_native
1622 dos_paths
1623 dxva2_lib
1624 libc_msvcrt
1625 libdc1394_1
1626 libdc1394_2
1627 sdl
1628 section_data_rel_ro
1629 threads
1630 vaapi_x11
1631 vdpau_x11
1632 xlib
1633 "
1634
1635 # options emitted with CONFIG_ prefix but not available on the command line
1636 CONFIG_EXTRA="
1637 aandcttables
1638 ac3dsp
1639 audio_frame_queue
1640 audiodsp
1641 blockdsp
1642 bswapdsp
1643 cabac
1644 dvprofile
1645 faandct
1646 faanidct
1647 fdctdsp
1648 flacdsp
1649 fmtconvert
1650 g722dsp
1651 gcrypt
1652 gmp
1653 golomb
1654 gplv3
1655 h263dsp
1656 h264chroma
1657 h264dsp
1658 h264pred
1659 h264qpel
1660 hpeldsp
1661 huffman
1662 huffyuvdsp
1663 huffyuvencdsp
1664 idctdsp
1665 iirfilter
1666 imdct15
1667 intrax8
1668 ividsp
1669 jpegtables
1670 libx262
1671 lgplv3
1672 lpc
1673 lzf
1674 me_cmp
1675 mpeg_er
1676 mpegaudio
1677 mpegaudiodsp
1678 mpegvideo
1679 mpegvideoenc
1680 mss34dsp
1681 pixblockdsp
1682 qpeldsp
1683 qsv
1684 qsvdec
1685 qsvenc
1686 rangecoder
1687 riffdec
1688 riffenc
1689 rtpdec
1690 rtpenc_chain
1691 rv34dsp
1692 sinewin
1693 snappy
1694 startcode
1695 texturedsp
1696 texturedspenc
1697 tpeldsp
1698 videodsp
1699 vp3dsp
1700 vp56dsp
1701 vp8dsp
1702 wma_freqs
1703 wmv2dsp
1704 "
1705
1706 CMDLINE_SELECT="
1707 $ARCH_EXT_LIST
1708 $CONFIG_LIST
1709 $HAVE_LIST_CMDLINE
1710 $THREADS_LIST
1711 asm
1712 cross_compile
1713 debug
1714 extra_warnings
1715 logging
1716 lto
1717 optimizations
1718 rpath
1719 "
1720
1721 PATHS_LIST="
1722 bindir
1723 datadir
1724 docdir
1725 incdir
1726 libdir
1727 mandir
1728 prefix
1729 shlibdir
1730 "
1731
1732 CMDLINE_SET="
1733 $PATHS_LIST
1734 ar
1735 arch
1736 as
1737 build_suffix
1738 cc
1739 objcc
1740 cpu
1741 cross_prefix
1742 custom_allocator
1743 dep_cc
1744 env
1745 extra_version
1746 host_cc
1747 host_cflags
1748 host_ld
1749 host_ldflags
1750 host_libs
1751 host_os
1752 ld
1753 logfile
1754 malloc_prefix
1755 nm
1756 optflags
1757 pkg_config
1758 pkg_config_flags
1759 random_seed
1760 samples
1761 sysinclude
1762 sysroot
1763 target_exec
1764 target_os
1765 target_path
1766 target_samples
1767 toolchain
1768 "
1769
1770 CMDLINE_APPEND="
1771 extra_cflags
1772 extra_objcflags
1773 host_cppflags
1774 "
1775
1776 # code dependency declarations
1777
1778 # architecture extensions
1779
1780 armv5te_deps="arm"
1781 armv6_deps="arm"
1782 armv6t2_deps="arm"
1783 armv8_deps="aarch64"
1784 neon_deps_any="aarch64 arm"
1785 intrinsics_neon_deps="neon"
1786 vfp_deps_any="aarch64 arm"
1787 vfpv3_deps="vfp"
1788
1789 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1790
1791 altivec_deps="ppc"
1792 ppc4xx_deps="ppc"
1793 vsx_deps="altivec"
1794 power8_deps="vsx"
1795
1796 cpunop_deps="i686"
1797 x86_64_select="i686"
1798 x86_64_suggest="fast_cmov"
1799
1800 amd3dnow_deps="mmx"
1801 amd3dnowext_deps="amd3dnow"
1802 i686_deps="x86"
1803 mmx_deps="x86"
1804 mmxext_deps="mmx"
1805 sse_deps="mmxext"
1806 sse2_deps="sse"
1807 sse3_deps="sse2"
1808 ssse3_deps="sse3"
1809 sse4_deps="ssse3"
1810 sse42_deps="sse4"
1811 avx_deps="sse42"
1812 xop_deps="avx"
1813 fma3_deps="avx"
1814 fma4_deps="avx"
1815 avx2_deps="avx"
1816
1817 mmx_external_deps="yasm"
1818 mmx_inline_deps="inline_asm"
1819 mmx_suggest="mmx_external mmx_inline"
1820
1821 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1822 eval dep=\$${ext}_deps
1823 eval ${ext}_external_deps='"${dep}_external"'
1824 eval ${ext}_inline_deps='"${dep}_inline"'
1825 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1826 done
1827
1828 aligned_stack_if_any="aarch64 ppc x86"
1829 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1830 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1831 fast_unaligned_if_any="aarch64 ppc x86"
1832 simd_align_16_if_any="altivec neon sse"
1833
1834 # system capabilities
1835 symver_if_any="symver_asm_label symver_gnu_asm"
1836 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1837
1838 # threading support
1839 atomics_gcc_if="sync_val_compare_and_swap"
1840 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1841 atomics_win32_if="MemoryBarrier"
1842 atomics_native_if_any="$ATOMICS_LIST"
1843 w32threads_deps="atomics_native"
1844 threads_if_any="$THREADS_LIST"
1845
1846 # subsystems
1847 dct_select="rdft"
1848 error_resilience_select="me_cmp"
1849 faandct_deps="faan fdctdsp"
1850 faanidct_deps="faan idctdsp"
1851 intrax8_select="error_resilience"
1852 mdct_select="fft"
1853 rdft_select="fft"
1854 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1855 mpeg_er_select="error_resilience"
1856 mpegaudio_select="mpegaudiodsp"
1857 mpegaudiodsp_select="dct"
1858 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1859 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1860 nvenc_deps_any="dlopen LoadLibrary"
1861 nvenc_extralibs='$ldl'
1862 qsvdec_select="qsv"
1863 qsvenc_select="qsv"
1864
1865 # decoders / encoders
1866 aac_decoder_select="imdct15 mdct sinewin"
1867 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1868 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1869 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1870 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1871 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1872 adpcm_g722_decoder_select="g722dsp"
1873 adpcm_g722_encoder_select="g722dsp"
1874 aic_decoder_select="golomb idctdsp"
1875 alac_encoder_select="lpc"
1876 als_decoder_select="bswapdsp"
1877 amrnb_decoder_select="lsp"
1878 amrwb_decoder_select="lsp"
1879 amv_decoder_select="sp5x_decoder"
1880 ape_decoder_select="bswapdsp"
1881 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1882 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1883 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1884 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1885 atrac1_decoder_select="mdct sinewin"
1886 atrac3_decoder_select="mdct"
1887 atrac3p_decoder_select="mdct sinewin"
1888 bink_decoder_select="blockdsp hpeldsp"
1889 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1890 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1891 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1892 cllc_decoder_select="bswapdsp"
1893 comfortnoise_encoder_select="lpc"
1894 cook_decoder_select="audiodsp mdct sinewin"
1895 cscd_decoder_select="lzo"
1896 cscd_decoder_suggest="zlib"
1897 dca_decoder_select="fmtconvert mdct"
1898 dds_decoder_select="texturedsp"
1899 dnxhd_decoder_select="blockdsp idctdsp"
1900 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1901 dvvideo_decoder_select="dvprofile idctdsp"
1902 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1903 dxa_decoder_deps="zlib"
1904 dxv_decoder_select="lzf texturedsp"
1905 eac3_decoder_select="ac3_decoder"
1906 eac3_encoder_select="ac3_encoder"
1907 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1908 eatgq_decoder_select="aandcttables idctdsp"
1909 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1910 exr_decoder_deps="zlib"
1911 ffv1_decoder_select="golomb rangecoder"
1912 ffv1_encoder_select="rangecoder"
1913 ffvhuff_decoder_select="huffyuv_decoder"
1914 ffvhuff_encoder_select="huffyuv_encoder"
1915 fic_decoder_select="golomb"
1916 flac_decoder_select="flacdsp golomb"
1917 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1918 flashsv_decoder_deps="zlib"
1919 flashsv_encoder_deps="zlib"
1920 flashsv2_decoder_deps="zlib"
1921 flv_decoder_select="h263_decoder"
1922 flv_encoder_select="h263_encoder"
1923 fourxm_decoder_select="blockdsp bswapdsp"
1924 fraps_decoder_select="bswapdsp huffman"
1925 g2m_decoder_deps="zlib"
1926 g2m_decoder_select="blockdsp idctdsp jpegtables"
1927 h261_decoder_select="mpeg_er mpegvideo"
1928 h261_encoder_select="aandcttables mpegvideoenc"
1929 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1930 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1931 h263i_decoder_select="h263_decoder"
1932 h263p_encoder_select="h263_encoder"
1933 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1934 h264_decoder_suggest="error_resilience"
1935 h264_nvenc_encoder_deps="nvenc"
1936 h264_qsv_decoder_deps="libmfx"
1937 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1938 h264_qsv_encoder_deps="libmfx"
1939 h264_qsv_encoder_select="qsvenc"
1940 hap_decoder_select="snappy texturedsp"
1941 hap_encoder_deps="libsnappy"
1942 hap_encoder_select="texturedspenc"
1943 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1944 hevc_nvenc_encoder_deps="nvenc"
1945 hevc_qsv_encoder_deps="libmfx"
1946 hevc_qsv_decoder_deps="libmfx"
1947 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1948 hevc_qsv_encoder_select="qsvenc"
1949 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1950 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1951 iac_decoder_select="imc_decoder"
1952 imc_decoder_select="bswapdsp fft mdct sinewin"
1953 indeo3_decoder_select="hpeldsp"
1954 indeo4_decoder_select="ividsp"
1955 indeo5_decoder_select="ividsp"
1956 interplay_video_decoder_select="hpeldsp"
1957 jpegls_decoder_select="golomb mjpeg_decoder"
1958 jpegls_encoder_select="golomb"
1959 jv_decoder_select="blockdsp"
1960 lagarith_decoder_select="huffyuvdsp"
1961 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1962 loco_decoder_select="golomb"
1963 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1964 metasound_decoder_select="lsp mdct sinewin"
1965 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1966 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1967 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1968 mjpegb_decoder_select="mjpeg_decoder"
1969 mlp_decoder_select="mlp_parser"
1970 motionpixels_decoder_select="bswapdsp"
1971 mp1_decoder_select="mpegaudio"
1972 mp1float_decoder_select="mpegaudio"
1973 mp2_decoder_select="mpegaudio"
1974 mp2float_decoder_select="mpegaudio"
1975 mp3_decoder_select="mpegaudio"
1976 mp3adu_decoder_select="mpegaudio"
1977 mp3adufloat_decoder_select="mpegaudio"
1978 mp3float_decoder_select="mpegaudio"
1979 mp3on4_decoder_select="mpegaudio"
1980 mp3on4float_decoder_select="mpegaudio"
1981 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1982 mpc8_decoder_select="mpegaudiodsp"
1983 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1984 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1985 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1986 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1987 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1988 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1989 mpeg2_qsv_decoder_deps="libmfx"
1990 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1991 mpeg2_qsv_encoder_deps="libmfx"
1992 mpeg2_qsv_encoder_select="qsvenc"
1993 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1994 mpeg4_encoder_select="h263_encoder"
1995 msa1_decoder_select="mss34dsp"
1996 msmpeg4v1_decoder_select="h263_decoder"
1997 msmpeg4v2_decoder_select="h263_decoder"
1998 msmpeg4v2_encoder_select="h263_encoder"
1999 msmpeg4v3_decoder_select="h263_decoder"
2000 msmpeg4v3_encoder_select="h263_encoder"
2001 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2002 mts2_decoder_select="mss34dsp"
2003 mxpeg_decoder_select="mjpeg_decoder"
2004 nellymoser_decoder_select="mdct sinewin"
2005 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2006 nuv_decoder_select="idctdsp lzo"
2007 on2avc_decoder_select="mdct"
2008 opus_decoder_deps="avresample"
2009 opus_decoder_select="imdct15"
2010 png_decoder_deps="zlib"
2011 png_encoder_deps="zlib"
2012 png_encoder_select="huffyuvencdsp"
2013 prores_decoder_select="idctdsp"
2014 prores_encoder_select="fdctdsp"
2015 qcelp_decoder_select="lsp"
2016 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2017 ra_144_encoder_select="audio_frame_queue lpc"
2018 ralf_decoder_select="golomb"
2019 rscc_decoder_deps="zlib"
2020 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2021 rv10_encoder_select="h263_encoder"
2022 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2023 rv20_encoder_select="h263_encoder"
2024 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2025 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2026 screenpresso_decoder_deps="zlib"
2027 shorten_decoder_select="golomb"
2028 sipr_decoder_select="lsp"
2029 sp5x_decoder_select="mjpeg_decoder"
2030 svq1_decoder_select="hpeldsp"
2031 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2032 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2033 svq3_decoder_suggest="zlib"
2034 tak_decoder_select="audiodsp"
2035 tdsc_decoder_deps="zlib"
2036 tdsc_decoder_select="mjpeg_decoder"
2037 theora_decoder_select="vp3_decoder"
2038 thp_decoder_select="mjpeg_decoder"
2039 tiff_decoder_suggest="zlib"
2040 tiff_encoder_suggest="zlib"
2041 truehd_decoder_select="mlp_decoder"
2042 truemotion2_decoder_select="bswapdsp"
2043 truespeech_decoder_select="bswapdsp"
2044 tscc_decoder_deps="zlib"
2045 txd_decoder_select="texturedsp"
2046 twinvq_decoder_select="mdct lsp sinewin"
2047 utvideo_decoder_select="bswapdsp"
2048 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2049 vble_decoder_select="huffyuvdsp"
2050 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2051 vc1image_decoder_select="vc1_decoder"
2052 vorbis_decoder_select="mdct"
2053 vorbis_encoder_select="mdct"
2054 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2055 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2056 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2057 vp6a_decoder_select="vp6_decoder"
2058 vp6f_decoder_select="vp6_decoder"
2059 vp7_decoder_select="h264pred videodsp vp8dsp"
2060 vp8_decoder_select="h264pred videodsp vp8dsp"
2061 vp9_decoder_select="videodsp"
2062 webp_decoder_select="vp8_decoder"
2063 wmapro_decoder_select="mdct sinewin wma_freqs"
2064 wmav1_decoder_select="mdct sinewin wma_freqs"
2065 wmav1_encoder_select="mdct sinewin wma_freqs"
2066 wmav2_decoder_select="mdct sinewin wma_freqs"
2067 wmav2_encoder_select="mdct sinewin wma_freqs"
2068 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2069 wmv1_decoder_select="h263_decoder"
2070 wmv1_encoder_select="h263_encoder"
2071 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2072 wmv2_encoder_select="h263_encoder wmv2dsp"
2073 wmv3_decoder_select="vc1_decoder"
2074 wmv3image_decoder_select="wmv3_decoder"
2075 zerocodec_decoder_deps="zlib"
2076 zlib_decoder_deps="zlib"
2077 zlib_encoder_deps="zlib"
2078 zmbv_decoder_deps="zlib"
2079 zmbv_encoder_deps="zlib"
2080
2081 # hardware accelerators
2082 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2083 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2084 vaapi_deps="va_va_h"
2085 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2086 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2087 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2088
2089 h263_vaapi_hwaccel_deps="vaapi"
2090 h263_vaapi_hwaccel_select="h263_decoder"
2091 h264_d3d11va_hwaccel_deps="d3d11va"
2092 h264_d3d11va_hwaccel_select="h264_decoder"
2093 h264_dxva2_hwaccel_deps="dxva2"
2094 h264_dxva2_hwaccel_select="h264_decoder"
2095 h264_mmal_decoder_deps="mmal"
2096 h264_mmal_hwaccel_deps="mmal"
2097 h264_mmal_decoder_select="h264_decoder"
2098 h264_mmal_encoder_deps="mmal"
2099 h264_qsv_hwaccel_deps="libmfx"
2100 h264_vaapi_hwaccel_deps="vaapi"
2101 h264_vaapi_hwaccel_select="h264_decoder"
2102 h264_vda_hwaccel_deps="vda"
2103 h264_vda_hwaccel_select="h264_decoder"
2104 h264_vda_old_hwaccel_deps="vda"
2105 h264_vda_old_hwaccel_select="h264_decoder"
2106 h264_vdpau_hwaccel_deps="vdpau"
2107 h264_vdpau_hwaccel_select="h264_decoder"
2108 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2109 hevc_d3d11va_hwaccel_select="hevc_decoder"
2110 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2111 hevc_dxva2_hwaccel_select="hevc_decoder"
2112 hevc_qsv_hwaccel_deps="libmfx"
2113 mpeg1_vdpau_hwaccel_deps="vdpau"
2114 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2115 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2116 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2117 mpeg2_dxva2_hwaccel_deps="dxva2"
2118 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2119 mpeg2_qsv_hwaccel_deps="libmfx"
2120 mpeg2_vaapi_hwaccel_deps="vaapi"
2121 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2122 mpeg2_vdpau_hwaccel_deps="vdpau"
2123 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2124 mpeg4_vaapi_hwaccel_deps="vaapi"
2125 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2126 mpeg4_vdpau_hwaccel_deps="vdpau"
2127 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2128 vc1_d3d11va_hwaccel_deps="d3d11va"
2129 vc1_d3d11va_hwaccel_select="vc1_decoder"
2130 vc1_dxva2_hwaccel_deps="dxva2"
2131 vc1_dxva2_hwaccel_select="vc1_decoder"
2132 vc1_vaapi_hwaccel_deps="vaapi"
2133 vc1_vaapi_hwaccel_select="vc1_decoder"
2134 vc1_vdpau_hwaccel_deps="vdpau"
2135 vc1_vdpau_hwaccel_select="vc1_decoder"
2136 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2137 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2138 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2139 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2140
2141 # parsers
2142 h264_parser_select="h264_decoder"
2143 hevc_parser_select="golomb"
2144 mpegvideo_parser_select="mpegvideo"
2145 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2146 vc1_parser_select="mpegvideo startcode vc1_decoder"
2147
2148 # bitstream_filters
2149 mjpeg2jpeg_bsf_select="jpegtables"
2150
2151 # external libraries
2152 libdcadec_decoder_deps="libdcadec"
2153 libfaac_encoder_deps="libfaac"
2154 libfaac_encoder_select="audio_frame_queue"
2155 libfdk_aac_decoder_deps="libfdk_aac"
2156 libfdk_aac_encoder_deps="libfdk_aac"
2157 libfdk_aac_encoder_select="audio_frame_queue"
2158 libgsm_decoder_deps="libgsm"
2159 libgsm_encoder_deps="libgsm"
2160 libgsm_ms_decoder_deps="libgsm"
2161 libgsm_ms_encoder_deps="libgsm"
2162 libilbc_decoder_deps="libilbc"
2163 libilbc_encoder_deps="libilbc"
2164 libkvazaar_encoder_deps="libkvazaar"
2165 libmp3lame_encoder_deps="libmp3lame"
2166 libmp3lame_encoder_select="audio_frame_queue"
2167 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2168 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2169 libopencore_amrnb_encoder_select="audio_frame_queue"
2170 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2171 libopenh264_encoder_deps="libopenh264"
2172 libopenjpeg_decoder_deps="libopenjpeg"
2173 libopenjpeg_encoder_deps="libopenjpeg"
2174 libopus_decoder_deps="libopus"
2175 libopus_encoder_deps="libopus"
2176 libopus_encoder_select="audio_frame_queue"
2177 libschroedinger_decoder_deps="libschroedinger"
2178 libschroedinger_encoder_deps="libschroedinger"
2179 libspeex_decoder_deps="libspeex"
2180 libspeex_encoder_deps="libspeex"
2181 libspeex_encoder_select="audio_frame_queue"
2182 libtheora_encoder_deps="libtheora"
2183 libtwolame_encoder_deps="libtwolame"
2184 libvo_aacenc_encoder_deps="libvo_aacenc"
2185 libvo_aacenc_encoder_select="audio_frame_queue"
2186 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2187 libvorbis_encoder_deps="libvorbis"
2188 libvorbis_encoder_select="audio_frame_queue"
2189 libvpx_vp8_decoder_deps="libvpx"
2190 libvpx_vp8_encoder_deps="libvpx"
2191 libvpx_vp9_decoder_deps="libvpx"
2192 libvpx_vp9_encoder_deps="libvpx"
2193 libwavpack_encoder_deps="libwavpack"
2194 libwebp_encoder_deps="libwebp"
2195 libx262_encoder_deps="libx262"
2196 libx264_encoder_deps="libx264"
2197 libx265_encoder_deps="libx265"
2198 libxavs_encoder_deps="libxavs"
2199 libxvid_encoder_deps="libxvid"
2200
2201 # demuxers / muxers
2202 ac3_demuxer_select="ac3_parser"
2203 asf_demuxer_select="riffdec"
2204 asf_muxer_select="riffenc"
2205 asf_stream_muxer_select="asf_muxer"
2206 avi_demuxer_select="riffdec"
2207 avi_muxer_select="riffenc"
2208 avisynth_demuxer_deps="avisynth"
2209 avisynth_demuxer_select="riffdec"
2210 caf_demuxer_select="riffdec"
2211 dash_muxer_select="mp4_muxer"
2212 dirac_demuxer_select="dirac_parser"
2213 dv_demuxer_select="dvprofile"
2214 dv_muxer_select="dvprofile"
2215 dxa_demuxer_select="riffdec"
2216 eac3_demuxer_select="ac3_parser"
2217 f4v_muxer_select="mov_muxer"
2218 flac_demuxer_select="flac_parser"
2219 hds_muxer_select="flv_muxer"
2220 hls_muxer_select="mpegts_muxer"
2221 ipod_muxer_select="mov_muxer"
2222 ismv_muxer_select="mov_muxer"
2223 matroska_audio_muxer_select="matroska_muxer"
2224 matroska_demuxer_select="riffdec"
2225 matroska_demuxer_suggest="bzlib lzo zlib"
2226 matroska_muxer_select="riffenc"
2227 mmf_muxer_select="riffenc"
2228 mov_demuxer_select="riffdec"
2229 mov_demuxer_suggest="zlib"
2230 mov_muxer_select="riffenc rtpenc_chain"
2231 mp3_demuxer_select="mpegaudio_parser"
2232 mp4_muxer_select="mov_muxer"
2233 mpegts_muxer_select="adts_muxer latm_muxer"
2234 mpegtsraw_demuxer_select="mpegts_demuxer"
2235 mxf_d10_muxer_select="mxf_muxer"
2236 nut_muxer_select="riffenc"
2237 nuv_demuxer_select="riffdec"
2238 oga_muxer_select="ogg_muxer"
2239 ogg_demuxer_select="golomb"
2240 opus_muxer_select="ogg_muxer"
2241 psp_muxer_select="mov_muxer"
2242 rtp_demuxer_select="sdp_demuxer"
2243 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2244 rtsp_demuxer_select="http_protocol rtpdec"
2245 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2246 sap_demuxer_select="sdp_demuxer"
2247 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2248 sdp_demuxer_select="rtpdec"
2249 smoothstreaming_muxer_select="ismv_muxer"
2250 spdif_muxer_select="aac_parser"
2251 spx_muxer_select="ogg_muxer"
2252 tak_demuxer_select="tak_parser"
2253 tg2_muxer_select="mov_muxer"
2254 tgp_muxer_select="mov_muxer"
2255 w64_demuxer_select="wav_demuxer"
2256 wav_demuxer_select="riffdec"
2257 wav_muxer_select="riffenc"
2258 webm_muxer_select="riffenc"
2259 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2260 wtv_demuxer_select="riffdec"
2261 xmv_demuxer_select="riffdec"
2262 xwma_demuxer_select="riffdec"
2263
2264 # indevs / outdevs
2265 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2266 alsa_outdev_deps="alsa_asoundlib_h"
2267 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2268 dv1394_indev_deps="dv1394"
2269 dv1394_indev_select="dv_demuxer"
2270 fbdev_indev_deps="linux_fb_h"
2271 jack_indev_deps="jack_jack_h pthreads"
2272 libcdio_indev_deps="libcdio"
2273 libdc1394_indev_deps="libdc1394"
2274 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2275 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2276 pulse_indev_deps="libpulse"
2277 sndio_indev_deps="sndio_h"
2278 sndio_outdev_deps="sndio_h"
2279 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2280 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2281 vfwcap_indev_extralibs="-lavicap32"
2282 x11grab_indev_deps="x11grab"
2283 x11grab_xcb_indev_deps="libxcb"
2284
2285 # protocols
2286 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2287 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2288 ffrtmpcrypt_protocol_select="tcp_protocol"
2289 ffrtmphttp_protocol_deps="!librtmp_protocol"
2290 ffrtmphttp_protocol_select="http_protocol"
2291 gopher_protocol_select="network"
2292 http_protocol_select="tcp_protocol"
2293 httpproxy_protocol_select="tcp_protocol"
2294 https_protocol_select="tls_protocol"
2295 icecast_protocol_select="http_protocol"
2296 librtmp_protocol_deps="librtmp"
2297 librtmpe_protocol_deps="librtmp"
2298 librtmps_protocol_deps="librtmp"
2299 librtmpt_protocol_deps="librtmp"
2300 librtmpte_protocol_deps="librtmp"
2301 mmsh_protocol_select="http_protocol"
2302 mmst_protocol_select="network"
2303 rtmp_protocol_deps="!librtmp_protocol"
2304 rtmp_protocol_select="tcp_protocol"
2305 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2306 rtmps_protocol_deps="!librtmp_protocol"
2307 rtmps_protocol_select="tls_protocol"
2308 rtmpt_protocol_select="ffrtmphttp_protocol"
2309 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2310 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2311 rtp_protocol_select="udp_protocol"
2312 sctp_protocol_deps="struct_sctp_event_subscribe"
2313 sctp_protocol_select="network"
2314 srtp_protocol_select="rtp_protocol"
2315 tcp_protocol_select="network"
2316 tls_gnutls_protocol_deps="gnutls"
2317 tls_gnutls_protocol_select="tcp_protocol"
2318 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2319 tls_openssl_protocol_select="tcp_protocol"
2320 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2321 udp_protocol_select="network"
2322 unix_protocol_deps="sys_un_h"
2323 unix_protocol_select="network"
2324
2325 # filters
2326 blackframe_filter_deps="gpl"
2327 boxblur_filter_deps="gpl"
2328 bs2b_filter_deps="libbs2b"
2329 cropdetect_filter_deps="gpl"
2330 delogo_filter_deps="gpl"
2331 drawtext_filter_deps="libfreetype"
2332 frei0r_filter_deps="frei0r dlopen"
2333 frei0r_filter_extralibs='$ldl'
2334 frei0r_src_filter_deps="frei0r dlopen"
2335 frei0r_src_filter_extralibs='$ldl'
2336 hqdn3d_filter_deps="gpl"
2337 interlace_filter_deps="gpl"
2338 ocv_filter_deps="libopencv"
2339 resample_filter_deps="avresample"
2340 scale_filter_deps="swscale"
2341
2342 # examples
2343 avcodec_example_deps="avcodec avutil"
2344 filter_audio_example_deps="avfilter avutil"
2345 metadata_example_deps="avformat avutil"
2346 output_example_deps="avcodec avformat avutil swscale"
2347 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2348 transcode_aac_example_deps="avcodec avformat avresample"
2349
2350 # libraries, in linking order
2351 avcodec_deps="avutil"
2352 avdevice_deps="avformat avcodec avutil"
2353 avfilter_deps="avutil"
2354 avformat_deps="avcodec avutil"
2355 avresample_deps="avutil"
2356 swscale_deps="avutil"
2357
2358 # programs
2359 avconv_deps="avcodec avfilter avformat avresample swscale"
2360 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2361 fps_filter null_filter resample_filter scale_filter
2362 setpts_filter trim_filter"
2363 avplay_deps="avcodec avformat avresample swscale sdl"
2364 avplay_libs='$sdl_libs'
2365 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2366 avprobe_deps="avcodec avformat"
2367
2368 # documentation
2369 pod2man_deps="doc"
2370 texi2html_deps="doc"
2371
2372 # default parameters
2373
2374 logfile="config.log"
2375
2376 # installation paths
2377 prefix_default="/usr/local"
2378 bindir_default='${prefix}/bin'
2379 datadir_default='${prefix}/share/avconv'
2380 docdir_default='${prefix}/share/doc/libav'
2381 incdir_default='${prefix}/include'
2382 libdir_default='${prefix}/lib'
2383 mandir_default='${prefix}/share/man'
2384 shlibdir_default="$libdir_default"
2385
2386 # toolchain
2387 ar_default="ar"
2388 cc_default="gcc"
2389 host_cc_default="gcc"
2390 cp_f="cp -f"
2391 ln_s="ln -s -f"
2392 nm_default="nm -g"
2393 objformat="elf"
2394 pkg_config_default=pkg-config
2395 ranlib="ranlib"
2396 strip="strip"
2397 yasmexe="yasm"
2398
2399 # machine
2400 arch_default=$(uname -m)
2401 cpu="generic"
2402 intrinsics="none"
2403
2404 # OS
2405 target_os_default=$(tolower $(uname -s))
2406 host_os=$target_os_default
2407
2408 # configurable options
2409 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2410
2411 enable asm
2412 enable debug
2413 enable doc
2414 enable faan faandct faanidct
2415 enable optimizations
2416 enable safe_bitstream_reader
2417 enable static
2418 enable swscale_alpha
2419 enable valgrind_backtrace
2420
2421 # By default, enable only those hwaccels that have no external dependencies.
2422 enable d3d11va dxva2 vda vdpau
2423
2424 # build settings
2425 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2426 LIBPREF="lib"
2427 LIBSUF=".a"
2428 FULLNAME='$(NAME)$(BUILDSUF)'
2429 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2430 SLIBPREF="lib"
2431 SLIBSUF=".so"
2432 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2433 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2434 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2435 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2436 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2437 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2438
2439 asflags_filter=echo
2440 cflags_filter=echo
2441 ldflags_filter=echo
2442
2443 AS_C='-c'
2444 AS_O='-o $@'
2445 CC_C='-c'
2446 CC_E='-E -o $@'
2447 CC_O='-o $@'
2448 OBJCC_C='-c'
2449 OBJCC_E='-E -o $@'
2450 OBJCC_O='-o $@'
2451 LD_O='-o $@'
2452 LD_LIB='-l%'
2453 LD_PATH='-L'
2454 HOSTCC_C='-c'
2455 HOSTCC_E='-E -o $@'
2456 HOSTCC_O='-o $@'
2457 HOSTLD_O='-o $@'
2458
2459 host_libs='-lm'
2460 host_cflags_filter=echo
2461 host_ldflags_filter=echo
2462
2463 target_path='$(CURDIR)'
2464
2465 # since the object filename is not given with the -MM flag, the compiler
2466 # is only able to print the basename, and we must add the path ourselves
2467 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2468 DEPFLAGS='-MM'
2469
2470 # find source path
2471 if test -f configure; then
2472 source_path=.
2473 else
2474 source_path=$(cd $(dirname "$0"); pwd)
2475 echo "$source_path" | grep -q '[[:blank:]]' &&
2476 die "Out of tree builds are impossible with whitespace in source path."
2477 test -e "$source_path/config.h" &&
2478 die "Out of tree builds are impossible with config.h in source dir."
2479 fi
2480
2481 for v in "$@"; do
2482 r=${v#*=}
2483 l=${v%"$r"}
2484 r=$(sh_quote "$r")
2485 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2486 done
2487
2488 find_things(){
2489 thing=$1
2490 pattern=$2
2491 file=$source_path/$3
2492 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2493 }
2494
2495 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2496 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2497 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2498 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2499 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2500 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2501 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2502 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2503 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2504 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2505 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2506
2507 ALL_COMPONENTS="
2508 $BSF_LIST
2509 $DECODER_LIST
2510 $DEMUXER_LIST
2511 $ENCODER_LIST
2512 $FILTER_LIST
2513 $HWACCEL_LIST
2514 $INDEV_LIST
2515 $MUXER_LIST
2516 $OUTDEV_LIST
2517 $PARSER_LIST
2518 $PROTOCOL_LIST
2519 "
2520
2521 for n in $COMPONENT_LIST; do
2522 v=$(toupper ${n%s})_LIST
2523 eval enable \$$v
2524 eval ${n}_if_any="\$$v"
2525 done
2526
2527 enable $ARCH_EXT_LIST
2528
2529 die_unknown(){
2530 echo "Unknown option \"$1\"."
2531 echo "See $0 --help for available options."
2532 exit 1
2533 }
2534
2535 print_3_columns() {
2536 cat | tr ' ' '\n' | sort | pr -r -3 -t
2537 }
2538
2539 show_list() {
2540 suffix=_$1
2541 shift
2542 echo $* | sed s/$suffix//g | print_3_columns
2543 exit 0
2544 }
2545
2546 rand_list(){
2547 IFS=', '
2548 set -- $*
2549 unset IFS
2550 for thing; do
2551 comp=${thing%:*}
2552 prob=${thing#$comp}
2553 prob=${prob#:}
2554 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2555 echo "prob ${prob:-0.5}"
2556 printf '%s\n' $comp
2557 done
2558 }
2559
2560 do_random(){
2561 action=$1
2562 shift
2563 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2564 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2565 }
2566
2567 for opt do
2568 optval="${opt#*=}"
2569 case "$opt" in
2570 --extra-ldflags=*)
2571 add_ldflags $optval
2572 ;;
2573 --extra-ldexeflags=*)
2574 add_ldexeflags $optval
2575 ;;
2576 --extra-libs=*)
2577 add_extralibs $optval
2578 ;;
2579 --disable-devices)
2580 disable $INDEV_LIST $OUTDEV_LIST
2581 ;;
2582 --enable-debug=*)
2583 debuglevel="$optval"
2584 ;;
2585 --disable-programs)
2586 disable $PROGRAM_LIST
2587 ;;
2588 --disable-everything)
2589 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2590 ;;
2591 --disable-all)
2592 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2593 disable $LIBRARY_LIST $PROGRAM_LIST doc
2594 ;;
2595 --enable-random|--disable-random)
2596 action=${opt%%-random}
2597 do_random ${action#--} $COMPONENT_LIST
2598 ;;
2599 --enable-random=*|--disable-random=*)
2600 action=${opt%%-random=*}
2601 do_random ${action#--} $optval
2602 ;;
2603 --enable-*=*|--disable-*=*)
2604 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2605 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2606 eval list=\$$(toupper $thing)_LIST
2607 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2608 $action $(filter "$name" $list)
2609 ;;
2610 --enable-avserver|--disable-avserver*)
2611 warn "avserver has been removed, the ${opt} option is only"\
2612 "provided for compatibility and will be removed in the future"
2613 ;;
2614 --enable-?*|--disable-?*)
2615 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2616 if is_in $option $COMPONENT_LIST; then
2617 test $action = disable && action=unset
2618 eval $action \$$(toupper ${option%s})_LIST
2619 elif is_in $option $CMDLINE_SELECT; then
2620 $action $option
2621 else
2622 die_unknown $opt
2623 fi
2624 ;;
2625 --list-*)
2626 NAME="${opt#--list-}"
2627 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2628 NAME=${NAME%s}
2629 eval show_list $NAME \$$(toupper $NAME)_LIST
2630 ;;
2631 --help|-h) show_help
2632 ;;
2633 *)
2634 optname="${opt%%=*}"
2635 optname="${optname#--}"
2636 optname=$(echo "$optname" | sed 's/-/_/g')
2637 if is_in $optname $CMDLINE_SET; then
2638 eval $optname='$optval'
2639 elif is_in $optname $CMDLINE_APPEND; then
2640 append $optname "$optval"
2641 else
2642 die_unknown $opt
2643 fi
2644 ;;
2645 esac
2646 done
2647
2648 for e in $env; do
2649 eval "export $e"
2650 done
2651
2652 disabled logging && logfile=/dev/null
2653
2654 # Disable all the library-specific components if the library itself
2655 # is disabled, see AVCODEC_LIST and following _LIST variables.
2656
2657 disable_components(){
2658 disabled ${1} && disable $(
2659 eval components="\$$(toupper ${1})_COMPONENTS"
2660 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2661 )
2662 }
2663
2664 map 'disable_components $v' $LIBRARY_LIST
2665
2666 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2667 set >> $logfile
2668
2669 case "$toolchain" in
2670 clang-asan)
2671 cc_default="clang"
2672 add_cflags -fsanitize=address
2673 add_ldflags -fsanitize=address
2674 ;;
2675 clang-tsan)
2676 cc_default="clang"
2677 add_cflags -fsanitize=thread -pie
2678 add_ldflags -fsanitize=thread -pie
2679 ;;
2680 clang-usan)
2681 cc_default="clang"
2682 add_cflags -fsanitize=undefined -O1
2683 add_ldflags -fsanitize=undefined
2684 ;;
2685 gcc-asan)
2686 cc_default="gcc"
2687 add_cflags -fsanitize=address
2688 add_ldflags -fsanitize=address
2689 ;;
2690 gcc-tsan)
2691 cc_default="gcc"
2692 add_cflags -fsanitize=thread -pie -fPIC
2693 add_ldflags -fsanitize=thread -pie -fPIC
2694 ;;
2695 gcc-usan)
2696 cc_default="gcc"
2697 add_cflags -fsanitize=undefined
2698 add_ldflags -fsanitize=undefined
2699 ;;
2700 valgrind-massif)
2701 target_exec_default="valgrind"
2702 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2703 ;;
2704 valgrind-memcheck)
2705 target_exec_default="valgrind"
2706 target_exec_args="--track-origins=yes --leak-check=full"
2707 ;;
2708 msvc)
2709 # Check whether the current MSVC version needs the C99 converter.
2710 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2711 # support enough of C99 to build libav. Default to the new
2712 # behaviour if the regexp was unable to match anything, since this
2713 # successfully parses the version number of existing supported
2714 # versions that require the converter (MSVC 2010 and 2012).
2715 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2716 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2717 cc_default="cl"
2718 else
2719 cc_default="c99wrap cl"
2720 fi
2721 ld_default="$source_path/compat/windows/mslink"
2722 nm_default="dumpbin -symbols"
2723 ar_default="lib"
2724 case "$arch" in
2725 arm*)
2726 as_default="armasm"
2727 ;;
2728 esac
2729 target_os_default="win32"
2730 # Use a relative path for TMPDIR. This makes sure all the
2731 # ffconf temp files are written with a relative path, avoiding
2732 # issues with msys/win32 path conversion for MSVC parameters
2733 # such as -Fo<file> or -out:<file>.
2734 TMPDIR=.
2735 ;;
2736 icl)
2737 cc_default="icl"
2738 ld_default="xilink"
2739 nm_default="dumpbin -symbols"
2740 ar_default="xilib"
2741 target_os_default="win32"
2742 TMPDIR=.
2743 ;;
2744 gcov)
2745 add_cflags -fprofile-arcs -ftest-coverage
2746 add_ldflags -fprofile-arcs -ftest-coverage
2747 ;;
2748 hardened)
2749 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2750 add_cflags -fno-strict-overflow -fstack-protector-all
2751 add_ldflags -Wl,-z,relro -Wl,-z,now
2752 ;;
2753 ?*)
2754 die "Unknown toolchain $toolchain"
2755 ;;
2756 esac
2757
2758 test -n "$cross_prefix" && enable cross_compile
2759
2760 if enabled cross_compile; then
2761 test -n "$arch" && test -n "$target_os" ||
2762 die "Must specify target arch and OS when cross-compiling"
2763 fi
2764
2765 ar_default="${cross_prefix}${ar_default}"
2766 cc_default="${cross_prefix}${cc_default}"
2767 occ_default="${cross_prefix}${occ_default}"
2768 nm_default="${cross_prefix}${nm_default}"
2769 pkg_config_default="${cross_prefix}${pkg_config_default}"
2770 ranlib="${cross_prefix}${ranlib}"
2771 strip="${cross_prefix}${strip}"
2772
2773 sysinclude_default="${sysroot}/usr/include"
2774
2775 set_default arch cc pkg_config sysinclude target_exec target_os
2776 enabled cross_compile || host_cc_default=$cc
2777 set_default host_cc
2778
2779 if ! $pkg_config --version >/dev/null 2>&1; then
2780 warn "$pkg_config not found, library detection may fail."
2781 pkg_config=false
2782 fi
2783
2784 exesuf() {
2785 case $1 in
2786 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2787 esac
2788 }
2789
2790 EXESUF=$(exesuf $target_os)
2791 HOSTEXESUF=$(exesuf $host_os)
2792
2793 # set temporary file name
2794 : ${TMPDIR:=$TEMPDIR}
2795 : ${TMPDIR:=$TMP}
2796 : ${TMPDIR:=/tmp}
2797
2798 if ! check_cmd mktemp -u XXXXXX; then
2799 # simple replacement for missing mktemp
2800 # NOT SAFE FOR GENERAL USE
2801 mktemp(){
2802 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2803 }
2804 fi
2805
2806 tmpfile(){
2807 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2808 (set -C; exec > $tmp) 2>/dev/null ||
2809 die "Unable to create temporary file in $TMPDIR."
2810 append TMPFILES $tmp
2811 eval $1=$tmp
2812 }
2813
2814 trap 'rm -f -- $TMPFILES' EXIT
2815
2816 tmpfile TMPASM .asm
2817 tmpfile TMPC .c
2818 tmpfile TMPE $EXESUF
2819 tmpfile TMPH .h
2820 tmpfile TMPO .o
2821 tmpfile TMPS .S
2822 tmpfile TMPSH .sh
2823 tmpfile TMPV .ver
2824
2825 unset -f mktemp
2826
2827 chmod +x $TMPE
2828
2829 # make sure we can execute files in $TMPDIR
2830 cat > $TMPSH 2>> $logfile <<EOF
2831 #! /bin/sh
2832 EOF
2833 chmod +x $TMPSH >> $logfile 2>&1
2834 if ! $TMPSH >> $logfile 2>&1; then
2835 cat <<EOF
2836 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2837 variable to another directory and make sure that it is not mounted noexec.
2838 EOF
2839 die "Sanity test failed."
2840 fi
2841
2842 armasm_flags(){
2843 for flag; do
2844 case $flag in
2845 # Filter out MSVC cl.exe options from cflags that shouldn't
2846 # be passed to gas-preprocessor
2847 -M[TD]*) ;;
2848 *) echo $flag ;;
2849 esac
2850 done
2851 }
2852
2853 ccc_flags(){
2854 for flag; do
2855 case $flag in
2856 -std=c99) echo -c99 ;;
2857 -mcpu=*) echo -arch ${flag#*=} ;;
2858 -mieee) echo -ieee ;;
2859 -O*|-fast) echo $flag ;;
2860 -fno-math-errno) echo -assume nomath_errno ;;
2861 -g) echo -g3 ;;
2862 -Wall) echo -msg_enable level2 ;;
2863 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2864 -Wl,*) echo $flag ;;
2865 -f*|-W*) ;;
2866 *) echo $flag ;;
2867 esac
2868 done
2869 }
2870
2871 cparser_flags(){
2872 for flag; do
2873 case $flag in
2874 -Wno-switch) echo -Wno-switch-enum ;;
2875 -Wno-format-zero-length) ;;
2876 -Wdisabled-optimization) ;;
2877 -Wno-pointer-sign) echo -Wno-other ;;
2878 *) echo $flag ;;
2879 esac
2880 done
2881 }
2882
2883 msvc_common_flags(){
2884 for flag; do
2885 case $flag in
2886 # In addition to specifying certain flags under the compiler
2887 # specific filters, they must be specified here as well or else the
2888 # generic catch all at the bottom will print the original flag.
2889 -Wall) ;;
2890 -std=c99) ;;
2891 # Common flags
2892 -fomit-frame-pointer) ;;
2893 -g) echo -Z7 ;;
2894 -fno-math-errno) ;;
2895 -fno-common) ;;
2896 -fno-signed-zeros) ;;
2897 -fPIC) ;;
2898 -mthumb) ;;
2899 -march=*) ;;
2900 -lz) echo zlib.lib ;;
2901 -lavifil32) echo vfw32.lib ;;
2902 -lavicap32) echo vfw32.lib user32.lib ;;
2903 -l*) echo ${flag#-l}.lib ;;
2904 -L*) echo -libpath:${flag#-L} ;;
2905 *) echo $flag ;;
2906 esac
2907 done
2908 }
2909
2910 msvc_flags(){
2911 msvc_common_flags "$@"
2912 for flag; do
2913 case $flag in
2914 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2915 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2916 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2917 -wd4273 -wd4554 -wd4701 ;;
2918 esac
2919 done
2920 }
2921
2922 icl_flags(){
2923 msvc_common_flags "$@"
2924 for flag; do
2925 case $flag in
2926 # Despite what Intel's documentation says -Wall, which is supported
2927 # on Windows, does enable remarks so disable them here.
2928 -Wall) echo $flag -Qdiag-disable:remark ;;
2929 -std=c99) echo -Qstd=c99 ;;
2930 esac
2931 done
2932 }
2933
2934 pgi_flags(){
2935 for flag; do
2936 case $flag in
2937 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2938 -fomit-frame-pointer) echo -Mnoframe ;;
2939 -g) echo -gopt ;;
2940 *) echo $flag ;;
2941 esac
2942 done
2943 }
2944
2945 suncc_flags(){
2946 for flag; do
2947 case $flag in
2948 -march=*|-mcpu=*)
2949 case "${flag#*=}" in
2950 native) echo -xtarget=native ;;
2951 v9|niagara) echo -xarch=sparc ;;
2952 ultrasparc) echo -xarch=sparcvis ;;
2953 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2954 i586|pentium) echo -xchip=pentium ;;
2955 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2956 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2957 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2958 pentium4*) echo -xtarget=pentium4 ;;
2959 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2960 *-sse3) echo -xarch=sse3 ;;
2961 core2) echo -xarch=ssse3 -xchip=core2 ;;
2962 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2963 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2964 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2965 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2966 k8|opteron|athlon64|athlon-fx)
2967 echo -xarch=sse2a ;;
2968 athlon*) echo -xarch=pentium_proa ;;
2969 esac
2970 ;;
2971 -std=c99) echo -xc99 ;;
2972 -fomit-frame-pointer) echo -xregs=frameptr ;;
2973 -fPIC) echo -KPIC -xcode=pic32 ;;
2974 -W*,*) echo $flag ;;
2975 -f*-*|-W*|-mimpure-text) ;;
2976 -shared) echo -G ;;
2977 *) echo $flag ;;
2978 esac
2979 done
2980 }
2981
2982 tms470_flags(){
2983 for flag; do
2984 case $flag in
2985 -march=*|-mcpu=*)
2986 case "${flag#*=}" in
2987 armv7-a|cortex-a*) echo -mv=7a8 ;;
2988 armv7-r|cortex-r*) echo -mv=7r4 ;;
2989 armv7-m|cortex-m*) echo -mv=7m3 ;;
2990 armv6*|arm11*) echo -mv=6 ;;
2991 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2992 echo -mv=5e ;;
2993 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2994 esac
2995 ;;
2996 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2997 -mfpu=vfp) echo --float_support=vfpv2 ;;
2998 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2999 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3000 -msoft-float) echo --float_support=vfplib ;;
3001 -O[0-3]|-mf=*) echo $flag ;;
3002 -g) echo -g -mn ;;
3003 -pds=*) echo $flag ;;
3004 -D*|-I*) echo $flag ;;
3005 --gcc|--abi=*) echo $flag ;;
3006 -me) echo $flag ;;
3007 esac
3008 done
3009 }
3010
3011 probe_cc(){
3012 pfx=$1
3013 _cc=$2
3014
3015 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3016 unset _ld_o _ldflags _ld_lib _ld_path
3017 unset _depflags _DEPCMD _DEPFLAGS
3018 _flags_filter=echo
3019
3020 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3021 _type=llvm_gcc
3022 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3023 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3024 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3025 _cflags_speed='-O3'
3026 _cflags_size='-Os'
3027 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3028 _type=gcc
3029 gcc_version=$($_cc --version | head -n1)
3030 gcc_basever=$($_cc -dumpversion)
3031 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3032 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3033 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3034 if ! $_cc -dumpversion | grep -q '^2\.'; then
3035 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3036 fi
3037 _cflags_speed='-O3'
3038 _cflags_size='-Os'
3039 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3040 _type=icc
3041 _ident=$($_cc --version | head -n1)
3042 _depflags='-MMD'
3043 _cflags_speed='-O3'
3044 _cflags_size='-Os'
3045 _cflags_noopt='-O1'
3046 elif $_cc -v 2>&1 | grep -q xlc; then
3047 _type=xlc
3048 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3049 _cflags_speed='-O5'
3050 _cflags_size='-O5 -qcompact'
3051 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3052 _type=ccc
3053 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3054 _DEPFLAGS='-M'
3055 _cflags_speed='-fast'
3056 _cflags_size='-O1'
3057 _flags_filter=ccc_flags
3058 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3059 test -d "$sysroot" || die "No valid sysroot specified."
3060 _type=armcc
3061 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3062 armcc_conf="$PWD/armcc.conf"
3063 $_cc --arm_linux_configure \
3064 --arm_linux_config_file="$armcc_conf" \
3065 --configure_sysroot="$sysroot" \
3066 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3067 die "Error creating armcc configuration file."
3068 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3069 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3070 as_default="${cross_prefix}gcc"
3071 _depflags='-MMD'
3072 _cflags_speed='-O3'
3073 _cflags_size='-Os'
3074 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3075 _type=tms470
3076 _ident=$($_cc -version | head -n1 | tr -s ' ')
3077 _flags='--gcc --abi=eabi -me'
3078 _cc_e='-ppl -fe=$@'
3079 _cc_o='-fe=$@'
3080 _depflags='-ppa -ppd=$(@:.o=.d)'
3081 _cflags_speed='-O3 -mf=5'
3082 _cflags_size='-O3 -mf=2'
3083 _flags_filter=tms470_flags
3084 elif $_cc -v 2>&1 | grep -q clang; then
3085 _type=clang
3086 _ident=$($_cc --version 2>/dev/null | head -n1)
3087 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3088 _cflags_speed='-O3'
3089 _cflags_size='-Os'
3090 elif $_cc -V 2>&1 | grep -q Sun; then
3091 _type=suncc
3092 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3093 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3094 _DEPFLAGS='-xM1 -xc99'
3095 _ldflags='-std=c99'
3096 _cflags_speed='-O5'
3097 _cflags_size='-O5 -xspace'
3098 _flags_filter=suncc_flags
3099 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3100 _type=pathscale
3101 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3102 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3103 _cflags_speed='-O2'
3104 _cflags_size='-Os'
3105 _flags_filter='filter_out -Wdisabled-optimization'
3106 elif $_cc -v 2>&1 | grep -q Open64; then
3107 _type=open64
3108 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3109 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3110 _cflags_speed='-O2'
3111 _cflags_size='-Os'
3112 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3113 elif $_cc -V 2>&1 | grep -q Portland; then
3114 _type=pgi
3115 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3116 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3117 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3118 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3119 _cflags_noopt="-O1"
3120 _flags_filter=pgi_flags
3121 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3122 _type=armasm
3123 _ident=$($_cc | head -n1)
3124 # 4509: "This form of conditional instruction is deprecated"
3125 _flags="-nologo -ignore 4509"
3126 _flags_filter=armasm_flags
3127 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3128 _type=msvc
3129 _ident=$($_cc 2>&1 | head -n1)
3130 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3131 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3132 _cflags_speed="-O2"
3133 _cflags_size="-O1"
3134 if $_cc -nologo- 2>&1 | grep -q Linker; then
3135 _ld_o='-out:$@'
3136 else
3137 _ld_o='-Fe$@'
3138 fi
3139 _cc_o='-Fo$@'
3140 _cc_e='-P -Fi$@'
3141 _flags_filter=msvc_flags
3142 _ld_lib='lib%.a'
3143 _ld_path='-libpath:'
3144 _flags='-nologo'
3145 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3146 elif $_cc 2>&1 | grep -q Intel; then
3147 _type=icl
3148 _ident=$($_cc 2>&1 | head -n1)
3149 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3150 # Not only is O3 broken on 13.x+ but it is slower on all previous
3151 # versions (tested) as well.
3152 _cflags_speed="-O2"
3153 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3154 if $_cc 2>&1 | grep -q Linker; then
3155 _ld_o='-out:$@'
3156 else
3157 _ld_o='-Fe$@'
3158 fi
3159 _cc_o='-Fo$@'
3160 _cc_e='-P'
3161 _flags_filter=icl_flags
3162 _ld_lib='lib%.a'
3163 _ld_path='-libpath:'
3164 # -Qdiag-error to make icl error when seeing certain unknown arguments
3165 _flags='-nologo -Qdiag-error:4044,10157'
3166 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3167 # with MSVC which enables it by default.
3168 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3169 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3170 _type=cparser
3171 _ident=$($_cc --version | head -n1)
3172 _depflags='-MMD'
3173 _cflags_speed='-O4'
3174 _cflags_size='-O2'
3175 _flags_filter=cparser_flags
3176 fi
3177
3178 eval ${pfx}_type=\$_type
3179 eval ${pfx}_ident=\$_ident
3180 }
3181
3182 set_ccvars(){
3183 eval ${1}_C=\${_cc_c-\${${1}_C}}
3184 eval ${1}_E=\${_cc_e-\${${1}_E}}
3185 eval ${1}_O=\${_cc_o-\${${1}_O}}
3186
3187 if [ -n "$_depflags" ]; then
3188 eval ${1}_DEPFLAGS=\$_depflags
3189 else
3190 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3191 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3192 eval DEP${1}FLAGS=\$_flags
3193 fi
3194 }
3195
3196 probe_cc cc "$cc"
3197 cflags_filter=$_flags_filter
3198 cflags_speed=$_cflags_speed
3199 cflags_size=$_cflags_size
3200 cflags_noopt=$_cflags_noopt
3201 add_cflags $_flags $_cflags
3202 cc_ldflags=$_ldflags
3203 set_ccvars CC
3204
3205 probe_cc hostcc "$host_cc"
3206 host_cflags_filter=$_flags_filter
3207 add_host_cflags $_flags $_cflags
3208 set_ccvars HOSTCC
3209
3210 test -n "$cc_type" && enable $cc_type ||
3211 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3212
3213 : ${as_default:=$cc}
3214 : ${objcc_default:=$cc}
3215 : ${dep_cc_default:=$cc}
3216 : ${ld_default:=$cc}
3217 : ${host_ld_default:=$host_cc}
3218 set_default ar as objcc dep_cc ld host_ld
3219
3220 probe_cc as "$as"
3221 asflags_filter=$_flags_filter
3222 add_asflags $_flags $_cflags
3223 set_ccvars AS
3224
3225 probe_cc objcc "$objcc"
3226 objcflags_filter=$_flags_filter
3227 add_objcflags $_flags $_cflags
3228 set_ccvars OBJC
3229
3230 probe_cc ld "$ld"
3231 ldflags_filter=$_flags_filter
3232 add_ldflags $_flags $_ldflags
3233 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3234 LD_O=${_ld_o-$LD_O}
3235 LD_LIB=${_ld_lib-$LD_LIB}
3236 LD_PATH=${_ld_path-$LD_PATH}
3237
3238 probe_cc hostld "$host_ld"
3239 host_ldflags_filter=$_flags_filter
3240 add_host_ldflags $_flags $_ldflags
3241 HOSTLD_O=${_ld_o-$HOSTLD_O}
3242
3243 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3244 probe_cc depcc "$dep_cc"
3245 CCDEP=${_DEPCMD:-$DEPCMD}
3246 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3247 DEPCCFLAGS=$_flags
3248 fi
3249
3250 if $ar 2>&1 | grep -q Microsoft; then
3251 arflags="-nologo"
3252 ar_o='-out:$@'
3253 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3254 arflags="rq"
3255 ar_o='$@'
3256 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3257 arflags='-Xany -r -c'
3258 ar_o='$@'
3259 else
3260 arflags="rc"
3261 ar_o='$@'
3262 fi
3263
3264 add_cflags $extra_cflags
3265 add_objcflags $extra_objcflags
3266 add_asflags $extra_cflags
3267
3268 if test -n "$sysroot"; then
3269 case "$cc_type" in
3270 gcc|llvm_gcc|clang)
3271 add_cppflags --sysroot="$sysroot"
3272 add_ldflags --sysroot="$sysroot"
3273 ;;
3274 tms470)
3275 add_cppflags -I"$sysinclude"
3276 add_ldflags --sysroot="$sysroot"
3277 ;;
3278 esac
3279 fi
3280
3281 if test "$cpu" = host; then
3282 enabled cross_compile &&
3283 die "--cpu=host makes no sense when cross-compiling."
3284
3285 case "$cc_type" in
3286 gcc|llvm_gcc)
3287 check_native(){
3288 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3289 sed -n "/cc1.*$1=/{
3290 s/.*$1=\\([^ ]*\\).*/\\1/
3291 p
3292 q
3293 }" $TMPE
3294 }
3295 cpu=$(check_native -march || check_native -mcpu)
3296 ;;
3297 esac
3298
3299 test "${cpu:-host}" = host &&
3300 die "--cpu=host not supported with compiler $cc"
3301 fi
3302
3303 # Deal with common $arch aliases
3304 case "$arch" in
3305 aarch64|arm64)
3306 arch="aarch64"
3307 ;;
3308 arm*)
3309 arch="arm"
3310 ;;
3311 mips*|IP*)
3312 arch="mips"
3313 ;;
3314 parisc*|hppa*)
3315 arch="parisc"
3316 ;;
3317 "Power Macintosh"|ppc*|powerpc*)
3318 arch="ppc"
3319 ;;
3320 s390|s390x)
3321 arch="s390"
3322 ;;
3323 sh4|sh)
3324 arch="sh4"
3325 ;;
3326 sun4u|sparc*)
3327 arch="sparc"
3328 ;;
3329 tilegx|tile-gx)
3330 arch="tilegx"
3331 ;;
3332 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3333 arch="x86"
3334 ;;
3335 esac
3336
3337 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3338 enable $arch
3339
3340 # Add processor-specific flags
3341 if enabled aarch64; then
3342
3343 case $cpu in
3344 armv*)
3345 cpuflags="-march=$cpu"
3346 ;;
3347 *)
3348 cpuflags="-mcpu=$cpu"
3349 ;;
3350 esac
3351
3352 elif enabled alpha; then
3353
3354 cpuflags="-mcpu=$cpu"
3355
3356 elif enabled arm; then
3357
3358 check_arm_arch() {
3359 check_cpp_condition stddef.h \
3360 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3361 $cpuflags
3362 }
3363
3364 probe_arm_arch() {
3365 if check_arm_arch 4; then echo armv4;
3366 elif check_arm_arch 4T; then echo armv4t;
3367 elif check_arm_arch 5; then echo armv5;
3368 elif check_arm_arch 5E; then echo armv5e;
3369 elif check_arm_arch 5T; then echo armv5t;
3370 elif check_arm_arch 5TE; then echo armv5te;
3371 elif check_arm_arch 5TEJ; then echo armv5te;
3372 elif check_arm_arch 6; then echo armv6;
3373 elif check_arm_arch 6J; then echo armv6j;
3374 elif check_arm_arch 6K; then echo armv6k;
3375 elif check_arm_arch 6Z; then echo armv6z;
3376 elif check_arm_arch 6ZK; then echo armv6zk;
3377 elif check_arm_arch 6T2; then echo armv6t2;
3378 elif check_arm_arch 7; then echo armv7;
3379 elif check_arm_arch 7A 7_A; then echo armv7-a;
3380 elif check_arm_arch 7S; then echo armv7-a;
3381 elif check_arm_arch 7R 7_R; then echo armv7-r;
3382 elif check_arm_arch 7M 7_M; then echo armv7-m;
3383 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3384 elif check_arm_arch 8A 8_A; then echo armv8-a;
3385 fi
3386 }
3387
3388 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3389
3390 case $cpu in
3391 armv*)
3392 cpuflags="-march=$cpu"
3393 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3394 ;;
3395 *)
3396 cpuflags="-mcpu=$cpu"
3397 case $cpu in
3398 cortex-a*) subarch=armv7a ;;
3399 cortex-r*) subarch=armv7r ;;
3400 cortex-m*) enable thumb; subarch=armv7m ;;
3401 arm11*) subarch=armv6 ;;
3402 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3403 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3404 *) subarch=$(probe_arm_arch) ;;
3405 esac
3406 ;;
3407 esac
3408
3409 case "$subarch" in
3410 armv5t*) enable fast_clz ;;
3411 armv[6-8]*) enable fast_clz fast_unaligned ;;
3412 esac
3413
3414 elif enabled avr32; then
3415
3416 case $cpu in
3417 ap7[02]0[0-2])
3418 subarch="avr32_ap"
3419 cpuflags="-mpart=$cpu"
3420 ;;
3421 ap)
3422 subarch="avr32_ap"
3423 cpuflags="-march=$cpu"
3424 ;;
3425 uc3[ab]*)
3426 subarch="avr32_uc"
3427 cpuflags="-mcpu=$cpu"
3428 ;;
3429 uc)
3430 subarch="avr32_uc"
3431 cpuflags="-march=$cpu"
3432 ;;
3433 esac
3434
3435 elif enabled bfin; then
3436
3437 cpuflags="-mcpu=$cpu"
3438
3439 elif enabled mips; then
3440
3441 cpuflags="-march=$cpu"
3442
3443 elif enabled ppc; then
3444
3445 disable ldbrx
3446
3447 case $(tolower $cpu) in
3448 601|ppc601|powerpc601)
3449 cpuflags="-mcpu=601"
3450 disable altivec
3451 ;;
3452 603*|ppc603*|powerpc603*)
3453 cpuflags="-mcpu=603"
3454 disable altivec
3455 ;;
3456 604*|ppc604*|powerpc604*)
3457 cpuflags="-mcpu=604"
3458 disable altivec
3459 ;;
3460 g3|75*|ppc75*|powerpc75*)
3461 cpuflags="-mcpu=750"
3462 disable altivec
3463 ;;
3464 g4|745*|ppc745*|powerpc745*)
3465 cpuflags="-mcpu=7450"
3466 disable vsx
3467 ;;
3468 74*|ppc74*|powerpc74*)
3469 cpuflags="-mcpu=7400"
3470 disable vsx
3471 ;;
3472 g5|970|ppc970|powerpc970)
3473 cpuflags="-mcpu=970"
3474 disable vsx
3475 ;;
3476 power[3-6]*)
3477 cpuflags="-mcpu=$cpu"
3478 disable vsx
3479 ;;
3480 power[7-8]*)
3481 cpuflags="-mcpu=$cpu"
3482 enable ldbrx
3483 ;;
3484 cell)
3485 cpuflags="-mcpu=cell"
3486 enable ldbrx
3487 disable vsx
3488 ;;
3489 e500mc)
3490 cpuflags="-mcpu=e500mc"
3491 disable altivec
3492 ;;
3493 e500v2)
3494 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3495 disable altivec
3496 disable dcbzl
3497 ;;
3498 e500)
3499 cpuflags="-mcpu=8540 -mhard-float"
3500 disable altivec
3501 disable dcbzl
3502 ;;
3503 esac
3504
3505 elif enabled sparc; then
3506
3507 case $cpu in
3508 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3509 cpuflags="-mcpu=$cpu"
3510 ;;
3511 ultrasparc*|niagara[234])
3512 cpuflags="-mcpu=$cpu"
3513 ;;
3514 esac
3515
3516 elif enabled x86; then
3517
3518 case $cpu in
3519 i[345]86|pentium)
3520 cpuflags="-march=$cpu"
3521 disable i686
3522 disable mmx
3523 ;;
3524 # targets that do NOT support nopl and conditional mov (cmov)
3525 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3526 cpuflags="-march=$cpu"
3527 disable i686
3528 ;;
3529 # targets that do support nopl and conditional mov (cmov)
3530 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3531 cpuflags="-march=$cpu"
3532 enable i686
3533 enable fast_cmov
3534 ;;
3535 # targets that do support conditional mov but on which it's slow
3536 pentium4|pentium4m|prescott|nocona)
3537 cpuflags="-march=$cpu"
3538 enable i686
3539 disable fast_cmov
3540 ;;
3541 esac
3542
3543 fi
3544
3545 if [ "$cpu" != generic ]; then
3546 add_cflags $cpuflags
3547 add_asflags $cpuflags
3548 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3549 fi
3550
3551 # compiler sanity check
3552 check_exec <<EOF
3553 int main(void){ return 0; }
3554 EOF
3555 if test "$?" != 0; then
3556 echo "$cc is unable to create an executable file."
3557 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3558 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3559 echo "Only do this if you know what cross compiling means."
3560 fi
3561 die "C compiler test failed."
3562 fi
3563
3564 add_cppflags -D_ISOC99_SOURCE
3565 check_cflags -std=c99
3566 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3567 #include <stdlib.h>
3568 EOF
3569 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3570 #include <stdlib.h>
3571 EOF
3572
3573 add_host_cppflags -D_ISOC99_SOURCE
3574 check_host_cflags -std=c99
3575 check_host_cflags -Wall
3576 check_host_cflags -O3
3577
3578 check_64bit(){
3579 arch32=$1
3580 arch64=$2
3581 expr=$3
3582 check_code cc "" "int test[2*($expr) - 1]" &&
3583 subarch=$arch64 || subarch=$arch32
3584 }
3585
3586 case "$arch" in
3587 aarch64|alpha|ia64)
3588 spic=$shared
3589 ;;
3590 mips)
3591 check_64bit mips mips64 '_MIPS_SIM > 1'
3592 spic=$shared
3593 ;;
3594 parisc)
3595 check_64bit parisc parisc64 'sizeof(void *) > 4'
3596 spic=$shared
3597 ;;
3598 ppc)
3599 check_64bit ppc ppc64 'sizeof(void *) > 4'
3600 spic=$shared
3601 ;;
3602 s390)
3603 check_64bit s390 s390x 'sizeof(void *) > 4'
3604 spic=$shared
3605 ;;
3606 sparc)
3607 check_64bit sparc sparc64 'sizeof(void *) > 4'
3608 spic=$shared
3609 ;;
3610 x86)
3611 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3612 if test "$subarch" = "x86_64"; then
3613 spic=$shared
3614 fi
3615 ;;
3616 esac
3617
3618 enable $subarch
3619 enabled spic && enable_weak pic
3620
3621 # OS specific
3622 case $target_os in
3623 aix)
3624 SHFLAGS=-shared
3625 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3626 enabled shared && add_ldflags -Wl,-brtl
3627 ;;
3628 android)
3629 disable symver
3630 enable section_data_rel_ro
3631 SLIB_INSTALL_NAME='$(SLIBNAME)'
3632 SLIB_INSTALL_LINKS=
3633 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3634 ;;
3635 haiku)
3636 prefix_default="/boot/common"
3637 network_extralibs="-lnetwork"
3638 host_libs=
3639 ;;
3640 sunos)
3641 SHFLAGS='-shared -Wl,-h,$$(@F)'
3642 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3643 network_extralibs="-lsocket -lnsl"
3644 # When using suncc to build, the Solaris linker will mark
3645 # an executable with each instruction set encountered by
3646 # the Solaris assembler. As our libraries contain their own
3647 # guards for processor-specific code, instead suppress
3648 # generation of the HWCAPS ELF section on Solaris x86 only.
3649 enabled_all suncc x86 &&
3650 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3651 add_ldflags -Wl,-M,mapfile
3652 nm_default='nm -P -g'
3653 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3654 ;;
3655 netbsd)
3656 disable symver
3657 oss_indev_extralibs="-lossaudio"
3658 oss_outdev_extralibs="-lossaudio"
3659 ;;
3660 openbsd|bitrig)
3661 disable symver
3662 SHFLAGS='-shared'
3663 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3664 SLIB_INSTALL_LINKS=
3665 oss_indev_extralibs="-lossaudio"
3666 oss_outdev_extralibs="-lossaudio"
3667 ;;
3668 dragonfly)
3669 disable symver
3670 ;;
3671 freebsd)
3672 ;;
3673 bsd/os)
3674 add_extralibs -lpoll -lgnugetopt
3675 ;;
3676 darwin)
3677 enabled ppc && add_asflags -force_cpusubtype_ALL
3678 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3679 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3680 add_ldflags -Wl,-dynamic,-search_paths_first
3681 SLIBSUF=".dylib"
3682 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3683 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3684 objformat="macho"
3685 enabled x86_64 && objformat="macho64"
3686 enabled_any pic shared ||
3687 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3688 ;;
3689 msys*)
3690 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3691 ;;
3692 mingw32*)
3693 if test $target_os = "mingw32ce"; then
3694 disable network
3695 else
3696 target_os=mingw32
3697 fi
3698 LIBTARGET=i386
3699 if enabled x86_64; then
3700 LIBTARGET="i386:x86-64"
3701 elif enabled arm; then
3702 LIBTARGET=arm-wince
3703 fi
3704 check_ldflags -Wl,--nxcompat
3705 check_ldflags -Wl,--dynamicbase
3706 shlibdir_default="$bindir_default"
3707 SLIBPREF=""
3708 SLIBSUF=".dll"
3709 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3710 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3711 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3712 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3713 SLIB_INSTALL_LINKS=
3714 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3715 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3716 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3717 objformat="win32"
3718 dlltool="${cross_prefix}dlltool"
3719 ranlib=:
3720 enable dos_paths
3721 ;;
3722 win32|win64)
3723 disable symver
3724 if enabled shared; then
3725 # Link to the import library instead of the normal static library
3726 # for shared libs.
3727 LD_LIB='%.lib'
3728 # Cannot build both shared and static libs with MSVC or icl.
3729 disable static
3730 fi
3731 shlibdir_default="$bindir_default"
3732 SLIBPREF=""
3733 SLIBSUF=".dll"
3734 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3735 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3736 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3737 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3738 SLIB_INSTALL_LINKS=
3739 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3740 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3741 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3742 objformat="win32"
3743 ranlib=:
3744 enable dos_paths
3745 ;;
3746 cygwin*)
3747 target_os=cygwin
3748 shlibdir_default="$bindir_default"
3749 SLIBPREF="cyg"
3750 SLIBSUF=".dll"
3751 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3752 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3753 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3754 SLIB_INSTALL_LINKS=
3755 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3756 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3757 objformat="win32"
3758 enable dos_paths
3759 ;;
3760 *-dos|freedos|opendos)
3761 network_extralibs="-lsocket"
3762 objformat="coff"
3763 enable dos_paths
3764 add_cppflags -U__STRICT_ANSI__
3765 ;;
3766 linux)
3767 enable dv1394
3768 enable section_data_rel_ro
3769 ;;
3770 irix*)
3771 target_os=irix
3772 ranlib="echo ignoring ranlib"
3773 ;;
3774 os/2*)
3775 ln_s="cp -f"
3776 objformat="aout"
3777 add_cppflags -D_GNU_SOURCE
3778 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3779 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3780 LIBSUF="_s.a"
3781 SLIBPREF=""
3782 SLIBSUF=".dll"
3783 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3784 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3785 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3786 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3787 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3788 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3789 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3790 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3791 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3792 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3793 enable dos_paths
3794 ;;
3795 gnu/kfreebsd)
3796 add_cppflags -D_BSD_SOURCE
3797 ;;
3798 gnu)
3799 ;;
3800 qnx)
3801 add_cppflags -D_QNX_SOURCE
3802 network_extralibs="-lsocket"
3803 ;;
3804 symbian)
3805 SLIBSUF=".dll"
3806 enable dos_paths
3807 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3808 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3809 add_ldflags -Wl,--target1-abs,--no-undefined \
3810 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3811 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3812 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3813 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3814 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3815 ;;
3816 osf1)
3817 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3818 ;;
3819 minix)
3820 ;;
3821 plan9)
3822 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3823 -D_REENTRANT_SOURCE \
3824 -D_RESEARCH_SOURCE \
3825 -DFD_SETSIZE=96 \
3826 -DHAVE_SOCK_OPTS
3827 add_compat strtod.o strtod=avpriv_strtod
3828 network_extralibs='-lbsd'
3829 exeobjs=compat/plan9/main.o
3830 cp_f='cp'
3831 ;;
3832 none)
3833 ;;
3834 *)
3835 die "Unknown OS '$target_os'."
3836 ;;
3837 esac
3838
3839 # determine libc flavour
3840
3841 probe_libc(){
3842 pfx=$1
3843 pfx_no_=${pfx%_}
3844 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3845 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3846 eval ${pfx}libc_type=uclibc
3847 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3848 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3849 eval ${pfx}libc_type=glibc
3850 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3851 # MinGW headers can be installed on Cygwin, so check for newlib first.
3852 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3853 eval ${pfx}libc_type=newlib
3854 add_${pfx}cppflags -U__STRICT_ANSI__
3855 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3856 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3857 eval ${pfx}libc_type=mingw64
3858 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3859 eval test \$${pfx_no_}cc_type = "gcc" &&
3860 add_${pfx}cppflags -D__printf__=__gnu_printf__
3861 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3862 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3863 eval ${pfx}libc_type=mingw32
3864 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3865 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3866 die "ERROR: MinGW32 runtime version must be >= 3.15."
3867 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3868 eval test \$${pfx_no_}cc_type = "gcc" &&
3869 add_${pfx}cppflags -D__printf__=__gnu_printf__
3870 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3871 eval ${pfx}libc_type=msvcrt
3872 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3873 if [ "$pfx" = host_ ]; then
3874 add_host_cppflags -Dsnprintf=_snprintf
3875 else
3876 add_compat strtod.o strtod=avpriv_strtod
3877 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3878 _snprintf=avpriv_snprintf \
3879 vsnprintf=avpriv_vsnprintf
3880 fi
3881 fi
3882 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3883 # 0x601 by default unless something else is set by the user.
3884 # This can easily lead to us detecting functions only present
3885 # in such new versions and producing binaries requiring windows 7.0.
3886 # Therefore explicitly set the default to XP unless the user has
3887 # set something else on the command line.
3888 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3889 # family. For these cases, configure is free to use any functions
3890 # found in the SDK headers by default. (Alternatively, we could force
3891 # _WIN32_WINNT to 0x0602 in that case.)
3892 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3893 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3894 #ifdef WINAPI_FAMILY
3895 #include <winapifamily.h>
3896 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3897 #error not desktop
3898 #endif
3899 #endif
3900 EOF
3901 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3902 eval ${pfx}libc_type=klibc
3903 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3904 eval ${pfx}libc_type=bionic
3905 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3906 eval ${pfx}libc_type=solaris
3907 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3908 else
3909 eval ${pfx}libc_type=default
3910 add_${pfx}cppflags -D_DEFAULT_SOURCE
3911 fi
3912 }
3913
3914 probe_libc
3915 test -n "$libc_type" && enable libc_$libc_type
3916 probe_libc host_
3917 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3918
3919 case $libc_type in
3920 bionic)
3921 add_compat strtod.o strtod=avpriv_strtod
3922 ;;
3923 esac
3924
3925 # hacks for compiler/libc/os combinations
3926
3927 if enabled_all tms470 libc_glibc; then
3928 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3929 add_cppflags -D__USER_LABEL_PREFIX__=
3930 add_cppflags -D__builtin_memset=memset
3931 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3932 add_cflags -pds=48 # incompatible redefinition of macro
3933 fi
3934
3935 if enabled_all ccc libc_glibc; then
3936 add_ldflags -Wl,-z,now # calls to libots crash without this
3937 fi
3938
3939 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3940 add_cppflags '-I\$(SRC_PATH)/compat/float'
3941
3942 esc(){
3943 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3944 }
3945
3946 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3947
3948 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3949
3950 set_default $PATHS_LIST
3951 set_default nm
3952
3953 # we need to build at least one lib type
3954 if ! enabled_any static shared; then
3955 cat <<EOF
3956 At least one library type must be built.
3957 Specify --enable-static to build the static libraries or --enable-shared to
3958 build the shared libraries as well. To only build the shared libraries specify
3959 --disable-static in addition to --enable-shared.
3960 EOF
3961 exit 1;
3962 fi
3963
3964 die_license_disabled() {
3965 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3966 }
3967
3968 die_license_disabled gpl libcdio
3969 die_license_disabled gpl libx264
3970 die_license_disabled gpl libx265
3971 die_license_disabled gpl libxavs
3972 die_license_disabled gpl libxvid
3973 die_license_disabled gpl x11grab
3974
3975 die_license_disabled nonfree libfaac
3976 die_license_disabled nonfree libfdk_aac
3977 die_license_disabled nonfree nvenc
3978 die_license_disabled nonfree openssl
3979
3980 die_license_disabled version3 libopencore_amrnb
3981 die_license_disabled version3 libopencore_amrwb
3982 die_license_disabled version3 libvo_aacenc
3983 die_license_disabled version3 libvo_amrwbenc
3984
3985 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3986
3987 disabled optimizations || check_cflags -fomit-frame-pointer
3988
3989 enable_weak_pic() {
3990 disabled pic && return
3991 enable pic
3992 add_cppflags -DPIC
3993 case "$target_os" in
3994 mingw*|cygwin*)
3995 ;;
3996 *)
3997 add_cflags -fPIC
3998 ;;
3999 esac
4000 add_asflags -fPIC
4001 }
4002
4003 enabled pic && enable_weak_pic
4004
4005 check_cc <<EOF || die "Symbol mangling check failed."
4006 int ff_extern;
4007 EOF
4008 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4009 extern_prefix=${sym%%ff_extern*}
4010
4011 check_cc <<EOF && enable_weak inline_asm
4012 void foo(void) { __asm__ volatile ("" ::); }
4013 EOF
4014
4015 _restrict=
4016 for restrict_keyword in restrict __restrict__ __restrict; do
4017 check_cc <<EOF && _restrict=$restrict_keyword && break
4018 void foo(char * $restrict_keyword p);
4019 EOF
4020 done
4021
4022 check_cc <<EOF && enable pragma_deprecated
4023 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4024 EOF
4025
4026 check_cc <<EOF && enable attribute_packed
4027 struct { int x; } __attribute__((packed)) x;
4028 EOF
4029
4030 check_cc <<EOF && enable attribute_may_alias
4031 union { int x; } __attribute__((may_alias)) x;
4032 EOF
4033
4034 check_cc <<EOF || die "endian test failed"
4035 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4036 EOF
4037 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4038
4039 check_gas() {
4040 log "check_gas using '$as' as AS"
4041 # :vararg is used on aarch64, arm and ppc altivec
4042 check_as <<EOF || return 1
4043 .macro m n, y:vararg=0
4044 \n: .int \y
4045 .endm
4046 m x
4047 EOF
4048 # .altmacro is only used in arm asm
4049 ! enabled arm || check_as <<EOF || return 1
4050 .altmacro
4051 EOF
4052 enable gnu_as
4053 return 0
4054 }
4055
4056 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4057 nogas=:
4058 enabled_any arm aarch64 && nogas=die
4059 enabled_all ppc altivec && nogas=warn
4060 as_noop=-v
4061
4062 case $as_type in
4063 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4064 gcc) gaspp_as_type=gas ;;
4065 *) gaspp_as_type=$as_type ;;
4066 esac
4067
4068 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4069
4070 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4071 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4072
4073 if ! check_gas ; then
4074 as=${gas:=$as}
4075 check_gas || \
4076 $nogas "GNU assembler not found, install/update gas-preprocessor"
4077 fi
4078
4079 check_as <<EOF && enable as_func
4080 .func test
4081 .endfunc
4082 EOF
4083 fi
4084
4085 check_inline_asm inline_asm_labels '"1:\n"'
4086
4087 if enabled aarch64; then
4088 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4089 # internal assembler in clang 3.3 does not support this instruction
4090 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4091 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4092
4093 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4094
4095 elif enabled alpha; then
4096
4097 check_cflags -mieee
4098
4099 elif enabled arm; then
4100
4101 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4102 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4103 enabled thumb && check_cflags -mthumb || check_cflags -marm
4104
4105 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4106 enable vfp_args
4107 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4108 enable vfp_args
4109 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4110 case "${cross_prefix:-$cc}" in
4111 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4112 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4113 __asm__ (".eabi_attribute 28, 1");
4114 int main(void) { return 0; }
4115 EOF
4116 esac
4117 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4118 fi
4119
4120 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4121 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4122 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4123 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4124 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4125 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4126
4127 [ $target_os = linux ] || [ $target_os = android ] ||
4128 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4129 $ARCH_EXT_LIST_ARM
4130
4131 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4132
4133 check_as <<EOF && enable as_dn_directive
4134 ra .dn d0.i16
4135 .unreq ra
4136 EOF
4137
4138 # llvm's integrated assembler supports .object_arch from llvm 3.5
4139 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4140 .object_arch armv4
4141 EOF
4142
4143 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4144
4145 elif enabled mips; then
4146
4147 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4148
4149 # make sure that only an instruction set is enabled
4150 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4151
4152 if enabled mips64; then
4153 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4154 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4155 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4156 else
4157 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4158 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4159 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4160 fi
4161
4162 elif enabled parisc; then
4163
4164 if enabled gcc; then
4165 case $($cc -dumpversion) in
4166 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4167 esac
4168 fi
4169
4170 elif enabled ppc; then
4171
4172 enable local_aligned_8 local_aligned_16
4173
4174 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4175 check_inline_asm ibm_asm '"add 0, 0, 0"'
4176 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4177 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4178
4179 # AltiVec flags: The FSF version of GCC differs from the Apple version
4180 if enabled altivec; then
4181 check_cflags -maltivec -mabi=altivec &&
4182 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4183 check_cflags -faltivec
4184
4185 # check if our compiler supports Motorola AltiVec C API
4186 check_cc <<EOF || disable altivec
4187 $inc_altivec_h
4188 int main(void) {
4189 vector signed int v1 = (vector signed int) { 0 };
4190 vector signed int v2 = (vector signed int) { 1 };
4191 v1 = vec_add(v1, v2);
4192 return 0;
4193 }
4194 EOF
4195
4196 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4197 fi
4198
4199 if enabled vsx; then
4200 check_cflags -mvsx &&
4201 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4202 fi
4203
4204 if enabled power8; then
4205 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4206 fi
4207
4208 elif enabled x86; then
4209
4210 check_builtin rdtsc intrin.h "__rdtsc()"
4211 check_builtin mm_empty mmintrin.h "_mm_empty()"
4212
4213 enable local_aligned_8 local_aligned_16
4214
4215 # check whether EBP is available on x86
4216 # As 'i' is stored on the stack, this program will crash
4217 # if the base pointer is used to access it because the
4218 # base pointer is cleared in the inline assembly code.
4219 check_exec_crash <<EOF && enable ebp_available
4220 volatile int i=0;
4221 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4222 return i;
4223 EOF
4224
4225 # check whether EBX is available on x86
4226 check_inline_asm ebx_available '""::"b"(0)' &&
4227 check_inline_asm ebx_available '"":::"%ebx"'
4228
4229 # check whether xmm clobbers are supported
4230 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4231
4232 # check whether binutils is new enough to compile SSSE3/MMXEXT
4233 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4234 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4235
4236 if ! disabled_any asm mmx yasm; then
4237 if check_cmd $yasmexe --version; then
4238 enabled x86_64 && yasm_extra="-m amd64"
4239 yasm_debug="-g dwarf2"
4240 elif check_cmd nasm -v; then
4241 yasmexe=nasm
4242 yasm_debug="-g -F dwarf"
4243 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4244 fi
4245
4246 YASMFLAGS="-f $objformat $yasm_extra"
4247 enabled pic && append YASMFLAGS "-DPIC"
4248 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4249 case "$objformat" in
4250 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4251 esac
4252
4253 check_yasm "movbe ecx, [5]" && enable yasm ||
4254 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4255 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4256 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4257 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4258 check_yasm "CPU amdnop" || disable cpunop
4259 fi
4260
4261 case "$cpu" in
4262 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4263 disable fast_clz
4264 ;;
4265 esac
4266
4267 fi
4268
4269 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4270
4271 check_ldflags -Wl,--as-needed
4272
4273 if check_func dlopen; then
4274 ldl=
4275 elif check_func dlopen -ldl; then
4276 ldl=-ldl
4277 fi
4278
4279 if ! disabled network; then
4280 check_func getaddrinfo $network_extralibs
4281 check_func inet_aton $network_extralibs
4282
4283 check_type netdb.h "struct addrinfo"
4284 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4285 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4286 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4287 check_type poll.h "struct pollfd"
4288 check_type netinet/sctp.h "struct sctp_event_subscribe"
4289 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4290 check_type netinet/in.h "struct sockaddr_in6"
4291 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4292 check_type "sys/types.h sys/socket.h" socklen_t
4293
4294 # Prefer arpa/inet.h over winsock2
4295 if check_header arpa/inet.h ; then
4296 check_func closesocket
4297 elif check_header winsock2.h ; then
4298 check_func_headers winsock2.h closesocket -lws2 &&
4299 network_extralibs="-lws2" ||
4300 { check_func_headers winsock2.h closesocket -lws2_32 &&
4301 network_extralibs="-lws2_32"; } || disable winsock2_h network
4302 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4303
4304 check_type ws2tcpip.h socklen_t
4305 check_type ws2tcpip.h "struct addrinfo"
4306 check_type ws2tcpip.h "struct group_source_req"
4307 check_type ws2tcpip.h "struct ip_mreq_source"
4308 check_type ws2tcpip.h "struct ipv6_mreq"
4309 check_type winsock2.h "struct pollfd"
4310 check_struct winsock2.h "struct sockaddr" sa_len
4311 check_type ws2tcpip.h "struct sockaddr_in6"
4312 check_type ws2tcpip.h "struct sockaddr_storage"
4313 else
4314 disable network
4315 fi
4316 fi
4317
4318 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4319 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4320 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4321 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4322
4323 case "$custom_allocator" in
4324 jemalloc)
4325 # jemalloc by default does not use a prefix
4326 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4327 ;;
4328 tcmalloc)
4329 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4330 malloc_prefix=tc_
4331 ;;
4332 esac
4333
4334 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4335 check_func ${malloc_prefix}memalign && enable memalign
4336 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4337
4338 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4339 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4340
4341 check_func fcntl
4342 check_func fork
4343 check_func gethrtime
4344 check_func getopt
4345 check_func getrusage
4346 check_func gettimeofday
4347 check_func gmtime_r
4348 check_func isatty
4349 check_func localtime_r
4350 check_func mach_absolute_time
4351 check_func mkstemp
4352 check_func mmap
4353 check_func mprotect
4354 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4355 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4356 check_func sched_getaffinity
4357 check_func setrlimit
4358 check_func strerror_r
4359 check_func sysconf
4360 check_func sysctl
4361 check_func usleep
4362
4363 check_func_headers io.h setmode
4364 check_func_headers stdlib.h getenv
4365
4366 check_func_headers windows.h CoTaskMemFree -lole32
4367 check_func_headers windows.h GetProcessAffinityMask
4368 check_func_headers windows.h GetProcessTimes
4369 check_func_headers windows.h GetSystemTimeAsFileTime
4370 check_func_headers windows.h LoadLibrary
4371 check_func_headers windows.h MapViewOfFile
4372 check_func_headers windows.h SetConsoleTextAttribute
4373 check_func_headers windows.h Sleep
4374 check_func_headers windows.h VirtualAlloc
4375 check_struct windows.h "CONDITION_VARIABLE" Ptr
4376
4377 check_header direct.h
4378 check_header dlfcn.h
4379 check_header d3d11.h
4380 check_header dxva.h
4381 check_header dxva2api.h
4382 check_header io.h
4383 check_header mach/mach_time.h
4384 check_header malloc.h
4385 check_header poll.h
4386 check_header sys/mman.h
4387 check_header sys/param.h
4388 check_header sys/resource.h
4389 check_header sys/select.h
4390 check_header sys/time.h
4391 check_header sys/un.h
4392 check_header unistd.h
4393 check_header valgrind/valgrind.h
4394 check_header vdpau/vdpau.h
4395 check_header vdpau/vdpau_x11.h
4396 check_header VideoDecodeAcceleration/VDADecoder.h
4397 check_header windows.h
4398 check_header X11/extensions/XvMClib.h
4399
4400 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4401 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4402 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4403
4404 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4405
4406 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4407 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4408 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602