8518e69bb5800d1c1b2ec8768290cbfa155b3cfe
[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 $1
346 i=1
347 while read line; do
348 printf '%5s %s\n' "${i}" "${line}"
349 i=$(($i+1))
350 done < $1 >> $logfile
351 log END $1
352 }
353
354 echolog(){
355 log "$@"
356 echo "$@"
357 }
358
359 warn(){
360 log "WARNING: $*"
361 WARNINGS="${WARNINGS}WARNING: $*\n"
362 }
363
364 die(){
365 echolog "$@"
366 cat <<EOF
367
368 If you think configure made a mistake, make sure you are using the latest
369 version from Git. If the latest version fails, report the problem to the
370 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
371 EOF
372 if disabled logging; then
373 cat <<EOF
374 Rerun configure with logging enabled (do not use --disable-logging), and
375 include the log this produces with your report.
376 EOF
377 else
378 cat <<EOF
379 Include the log file "$logfile" produced by configure as this will help
380 solving the problem.
381 EOF
382 fi
383 exit 1
384 }
385
386 # Avoid locale weirdness, besides we really just want to translate ASCII.
387 toupper(){
388 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
389 }
390
391 tolower(){
392 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
393 }
394
395 c_escape(){
396 echo "$*" | sed 's/["\\]/\\\0/g'
397 }
398
399 sh_quote(){
400 v=$(echo "$1" | sed "s/'/'\\\\''/g")
401 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
402 echo "$v"
403 }
404
405 cleanws(){
406 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
407 }
408
409 filter(){
410 pat=$1
411 shift
412 for v; do
413 eval "case $v in $pat) echo $v ;; esac"
414 done
415 }
416
417 filter_out(){
418 pat=$1
419 shift
420 for v; do
421 eval "case $v in $pat) ;; *) echo $v ;; esac"
422 done
423 }
424
425 map(){
426 m=$1
427 shift
428 for v; do eval $m; done
429 }
430
431 add_suffix(){
432 suffix=$1
433 shift
434 for v; do echo ${v}${suffix}; done
435 }
436
437 set_all(){
438 value=$1
439 shift
440 for var in $*; do
441 eval $var=$value
442 done
443 }
444
445 set_weak(){
446 value=$1
447 shift
448 for var; do
449 eval : \${$var:=$value}
450 done
451 }
452
453 sanitize_var_name(){
454 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
455 }
456
457 set_safe(){
458 var=$1
459 shift
460 eval $(sanitize_var_name "$var")='$*'
461 }
462
463 get_safe(){
464 eval echo \$$(sanitize_var_name "$1")
465 }
466
467 pushvar(){
468 for pvar in $*; do
469 eval level=\${${pvar}_level:=0}
470 eval ${pvar}_${level}="\$$pvar"
471 eval ${pvar}_level=$(($level+1))
472 done
473 }
474
475 popvar(){
476 for pvar in $*; do
477 eval level=\${${pvar}_level:-0}
478 test $level = 0 && continue
479 eval level=$(($level-1))
480 eval $pvar="\${${pvar}_${level}}"
481 eval ${pvar}_level=$level
482 eval unset ${pvar}_${level}
483 done
484 }
485
486 enable(){
487 set_all yes $*
488 }
489
490 disable(){
491 set_all no $*
492 }
493
494 enable_weak(){
495 set_weak yes $*
496 }
497
498 disable_weak(){
499 set_weak no $*
500 }
501
502 enable_safe(){
503 for var; do
504 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
505 done
506 }
507
508 disable_safe(){
509 for var; do
510 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511 done
512 }
513
514 do_enable_deep(){
515 for var; do
516 enabled $var && continue
517 eval sel="\$${var}_select"
518 eval sgs="\$${var}_suggest"
519 pushvar var sgs
520 enable_deep $sel
521 popvar sgs
522 enable_deep_weak $sgs
523 popvar var
524 done
525 }
526
527 enable_deep(){
528 do_enable_deep $*
529 enable $*
530 }
531
532 enable_deep_weak(){
533 for var; do
534 disabled $var && continue
535 pushvar var
536 do_enable_deep $var
537 popvar var
538 enable_weak $var
539 done
540 }
541
542 enabled(){
543 test "${1#!}" = "$1" && op== || op=!=
544 eval test "x\$${1#!}" $op "xyes"
545 }
546
547 disabled(){
548 test "${1#!}" = "$1" && op== || op=!=
549 eval test "x\$${1#!}" $op "xno"
550 }
551
552 enabled_all(){
553 for opt; do
554 enabled $opt || return 1
555 done
556 }
557
558 disabled_all(){
559 for opt; do
560 disabled $opt || return 1
561 done
562 }
563
564 enabled_any(){
565 for opt; do
566 enabled $opt && return 0
567 done
568 }
569
570 disabled_any(){
571 for opt; do
572 disabled $opt && return 0
573 done
574 return 1
575 }
576
577 set_default(){
578 for opt; do
579 eval : \${$opt:=\$${opt}_default}
580 done
581 }
582
583 is_in(){
584 value=$1
585 shift
586 for var in $*; do
587 [ $var = $value ] && return 0
588 done
589 return 1
590 }
591
592 do_check_deps(){
593 for cfg; do
594 cfg="${cfg#!}"
595 enabled ${cfg}_checking && die "Circular dependency for $cfg."
596 disabled ${cfg}_checking && continue
597 enable ${cfg}_checking
598 append allopts $cfg
599
600 eval dep_all="\$${cfg}_deps"
601 eval dep_any="\$${cfg}_deps_any"
602 eval dep_sel="\$${cfg}_select"
603 eval dep_sgs="\$${cfg}_suggest"
604 eval dep_ifa="\$${cfg}_if"
605 eval dep_ifn="\$${cfg}_if_any"
606
607 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
608 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
609 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
610
611 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
612 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
613 enabled_all $dep_all || disable $cfg
614 enabled_any $dep_any || disable $cfg
615 disabled_any $dep_sel && disable $cfg
616
617 if enabled $cfg; then
618 enable_deep $dep_sel
619 enable_deep_weak $dep_sgs
620 fi
621
622 disable ${cfg}_checking
623 done
624 }
625
626 check_deps(){
627 unset allopts
628
629 do_check_deps "$@"
630
631 for cfg in $allopts; do
632 enabled $cfg || continue
633 eval dep_extralibs="\$${cfg}_extralibs"
634 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
635 done
636 }
637
638 print_config(){
639 pfx=$1
640 files=$2
641 shift 2
642 map 'eval echo "$v \${$v:-no}"' "$@" |
643 awk "BEGIN { split(\"$files\", files) }
644 {
645 c = \"$pfx\" toupper(\$1);
646 v = \$2;
647 sub(/yes/, 1, v);
648 sub(/no/, 0, v);
649 for (f in files) {
650 file = files[f];
651 if (file ~ /\\.h\$/) {
652 printf(\"#define %s %d\\n\", c, v) >>file;
653 } else if (file ~ /\\.asm\$/) {
654 printf(\"%%define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.mak\$/) {
656 n = -v ? \"\" : \"!\";
657 printf(\"%s%s=yes\\n\", n, c) >>file;
658 }
659 }
660 }"
661 }
662
663 print_enabled(){
664 suf=$1
665 shift
666 for v; do
667 enabled $v && printf "%s\n" ${v%$suf};
668 done
669 }
670
671 append(){
672 var=$1
673 shift
674 eval "$var=\"\$$var $*\""
675 }
676
677 prepend(){
678 var=$1
679 shift
680 eval "$var=\"$* \$$var\""
681 }
682
683 unique(){
684 var=$1
685 uniq_list=""
686 for tok in $(eval echo \$$var); do
687 uniq_list="$(filter_out $tok $uniq_list) $tok"
688 done
689 eval "$var=\"${uniq_list}\""
690 }
691
692 add_cppflags(){
693 append CPPFLAGS "$@"
694 }
695
696 add_cflags(){
697 append CFLAGS $($cflags_filter "$@")
698 }
699
700 add_asflags(){
701 append ASFLAGS $($asflags_filter "$@")
702 }
703
704 add_objcflags(){
705 append OBJCFLAGS $($objcflags_filter "$@")
706 }
707
708 add_ldflags(){
709 append LDFLAGS $($ldflags_filter "$@")
710 }
711
712 add_ldexeflags(){
713 append LDEXEFLAGS $($ldflags_filter "$@")
714 }
715
716 add_stripflags(){
717 append STRIPFLAGS "$@"
718 }
719
720 add_extralibs(){
721 prepend extralibs $($ldflags_filter "$@")
722 }
723
724 add_host_cppflags(){
725 append host_cppflags "$@"
726 }
727
728 add_host_cflags(){
729 append host_cflags $($host_cflags_filter "$@")
730 }
731
732 add_host_ldflags(){
733 append host_ldflags $($host_ldflags_filter "$@")
734 }
735
736 add_compat(){
737 append compat_objs $1
738 shift
739 map 'add_cppflags -D$v' "$@"
740 }
741
742 check_cmd(){
743 log "$@"
744 "$@" >> $logfile 2>&1
745 }
746
747 cc_o(){
748 eval printf '%s\\n' $CC_O
749 }
750
751 cc_e(){
752 eval printf '%s\\n' $CC_E
753 }
754
755 check_cc(){
756 log check_cc "$@"
757 cat > $TMPC
758 log_file $TMPC
759 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
760 }
761
762 check_objcc(){
763 log check_objcc "$@"
764 cat > $TMPC
765 log_file $TMPC
766 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
767 }
768
769 check_cpp(){
770 log check_cpp "$@"
771 cat > $TMPC
772 log_file $TMPC
773 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
774 }
775
776 as_o(){
777 eval printf '%s\\n' $AS_O
778 }
779
780 check_as(){
781 log check_as "$@"
782 cat > $TMPS
783 log_file $TMPS
784 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
785 }
786
787 check_inline_asm(){
788 log check_inline_asm "$@"
789 name="$1"
790 code="$2"
791 shift 2
792 disable $name
793 check_cc "$@" <<EOF && enable $name
794 void foo(void){ __asm__ volatile($code); }
795 EOF
796 }
797
798 check_insn(){
799 log check_insn "$@"
800 check_inline_asm ${1}_inline "\"$2\""
801 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
802 }
803
804 check_yasm(){
805 log check_yasm "$@"
806 echo "$1" > $TMPS
807 log_file $TMPS
808 shift 1
809 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
810 }
811
812 ld_o(){
813 eval printf '%s\\n' $LD_O
814 }
815
816 check_ld(){
817 log check_ld "$@"
818 flags=$(filter_out '-l*' "$@")
819 libs=$(filter '-l*' "$@")
820 check_cc $($cflags_filter $flags) || return
821 flags=$($ldflags_filter $flags)
822 libs=$($ldflags_filter $libs)
823 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
824 }
825
826 print_include(){
827 hdr=$1
828 test "${hdr%.h}" = "${hdr}" &&
829 echo "#include $hdr" ||
830 echo "#include <$hdr>"
831 }
832
833 check_code(){
834 log check_code "$@"
835 check=$1
836 headers=$2
837 code=$3
838 shift 3
839 {
840 for hdr in $headers; do
841 print_include $hdr
842 done
843 echo "int main(void) { $code; return 0; }"
844 } | check_$check "$@"
845 }
846
847 check_cppflags(){
848 log check_cppflags "$@"
849 check_cc "$@" <<EOF && append CPPFLAGS "$@"
850 int x;
851 EOF
852 }
853
854 test_cflags(){
855 log test_cflags "$@"
856 set -- $($cflags_filter "$@")
857 check_cc "$@" <<EOF
858 int x;
859 EOF
860 }
861
862 check_cflags(){
863 log check_cflags "$@"
864 test_cflags "$@" && add_cflags "$@"
865 }
866
867 test_objcflags(){
868 log test_cflags "$@"
869 set -- $($cflags_filter "$@")
870 check_objcc "$@" <<EOF
871 int x;
872 EOF
873 }
874
875 check_objcflags(){
876 log check_cflags "$@"
877 test_objcflags "$@" && add_objcflags "$@"
878 }
879
880 test_ldflags(){
881 log test_ldflags "$@"
882 check_ld "$@" <<EOF
883 int main(void){ return 0; }
884 EOF
885 }
886
887 check_ldflags(){
888 log check_ldflags "$@"
889 test_ldflags "$@" && add_ldflags "$@"
890 }
891
892 test_stripflags(){
893 log test_stripflags "$@"
894 # call check_cc to get a fresh TMPO
895 check_cc <<EOF
896 int main(void) { return 0; }
897 EOF
898 check_cmd $strip $STRIPFLAGS "$@" $TMPO
899 }
900
901 check_stripflags(){
902 log check_stripflags "$@"
903 test_stripflags "$@" && add_stripflags "$@"
904 }
905
906 check_header(){
907 log check_header "$@"
908 header=$1
909 shift
910 disable_safe $header
911 check_cpp "$@" <<EOF && enable_safe $header
912 #include <$header>
913 int x;
914 EOF
915 }
916
917 check_func(){
918 log check_func "$@"
919 func=$1
920 shift
921 disable $func
922 check_ld "$@" <<EOF && enable $func
923 extern int $func();
924 int main(void){ $func(); }
925 EOF
926 }
927
928 check_mathfunc(){
929 log check_mathfunc "$@"
930 func=$1
931 narg=$2
932 shift 2
933 test $narg = 2 && args="f, g" || args="f"
934 disable $func
935 check_ld "$@" <<EOF && enable $func
936 #include <math.h>
937 float foo(float f, float g) { return $func($args); }
938 int main(void){ return 0; }
939 EOF
940 }
941
942 check_func_headers(){
943 log check_func_headers "$@"
944 headers=$1
945 funcs=$2
946 shift 2
947 {
948 for hdr in $headers; do
949 print_include $hdr
950 done
951 for func in $funcs; do
952 echo "long check_$func(void) { return (long) $func; }"
953 done
954 echo "int main(void) { return 0; }"
955 } | check_ld "$@" && enable $funcs && enable_safe $headers
956 }
957
958 check_cpp_condition(){
959 log check_cpp_condition "$@"
960 header=$1
961 condition=$2
962 shift 2
963 check_cpp "$@" <<EOF
964 #include <$header>
965 #if !($condition)
966 #error "unsatisfied condition: $condition"
967 #endif
968 EOF
969 }
970
971 check_lib(){
972 log check_lib "$@"
973 header="$1"
974 func="$2"
975 shift 2
976 check_header $header && check_func $func "$@" && add_extralibs "$@"
977 }
978
979 check_lib2(){
980 log check_lib2 "$@"
981 headers="$1"
982 funcs="$2"
983 shift 2
984 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
985 }
986
987 check_pkg_config(){
988 log check_pkg_config "$@"
989 pkg="$1"
990 headers="$2"
991 funcs="$3"
992 shift 3
993 check_cmd $pkg_config --exists --print-errors $pkg || return
994 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
995 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
996 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
997 set_safe "${pkg}_cflags" $pkg_cflags &&
998 set_safe "${pkg}_libs" $pkg_libs
999 }
1000
1001 check_exec(){
1002 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1003 }
1004
1005 check_exec_crash(){
1006 code=$(cat)
1007
1008 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1009 # are safe but may not be available everywhere. Thus we use
1010 # raise(SIGTERM) instead. The check is run in a subshell so we
1011 # can redirect the "Terminated" message from the shell. SIGBUS
1012 # is not defined by standard C so it is used conditionally.
1013
1014 (check_exec "$@") >> $logfile 2>&1 <<EOF
1015 #include <signal.h>
1016 static void sighandler(int sig){
1017 raise(SIGTERM);
1018 }
1019 int foo(void){
1020 $code
1021 }
1022 int (*func_ptr)(void) = foo;
1023 int main(void){
1024 signal(SIGILL, sighandler);
1025 signal(SIGFPE, sighandler);
1026 signal(SIGSEGV, sighandler);
1027 #ifdef SIGBUS
1028 signal(SIGBUS, sighandler);
1029 #endif
1030 return func_ptr();
1031 }
1032 EOF
1033 }
1034
1035 check_type(){
1036 log check_type "$@"
1037 headers=$1
1038 type=$2
1039 shift 2
1040 disable_safe "$type"
1041 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1042 }
1043
1044 check_struct(){
1045 log check_struct "$@"
1046 headers=$1
1047 struct=$2
1048 member=$3
1049 shift 3
1050 disable_safe "${struct}_${member}"
1051 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1052 enable_safe "${struct}_${member}"
1053 }
1054
1055 check_builtin(){
1056 log check_builtin "$@"
1057 name=$1
1058 headers=$2
1059 builtin=$3
1060 shift 3
1061 disable "$name"
1062 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1063 }
1064
1065 check_compile_assert(){
1066 log check_compile_assert "$@"
1067 name=$1
1068 headers=$2
1069 condition=$3
1070 shift 3
1071 disable "$name"
1072 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1073 }
1074
1075 require(){
1076 name="$1"
1077 header="$2"
1078 func="$3"
1079 shift 3
1080 check_lib $header $func "$@" || die "ERROR: $name not found"
1081 }
1082
1083 require2(){
1084 name="$1"
1085 headers="$2"
1086 func="$3"
1087 shift 3
1088 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1089 }
1090
1091 require_pkg_config(){
1092 pkg="$1"
1093 check_pkg_config "$@" || die "ERROR: $pkg not found"
1094 add_cflags $(get_safe "${pkg}_cflags")
1095 add_extralibs $(get_safe "${pkg}_libs")
1096 }
1097
1098 hostcc_e(){
1099 eval printf '%s\\n' $HOSTCC_E
1100 }
1101
1102 hostcc_o(){
1103 eval printf '%s\\n' $HOSTCC_O
1104 }
1105
1106 check_host_cc(){
1107 log check_host_cc "$@"
1108 cat > $TMPC
1109 log_file $TMPC
1110 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1111 }
1112
1113 check_host_cpp(){
1114 log check_host_cpp "$@"
1115 cat > $TMPC
1116 log_file $TMPC
1117 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1118 }
1119
1120 check_host_cppflags(){
1121 log check_host_cppflags "$@"
1122 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1123 int x;
1124 EOF
1125 }
1126
1127 check_host_cflags(){
1128 log check_host_cflags "$@"
1129 set -- $($host_cflags_filter "$@")
1130 check_host_cc "$@" <<EOF && append host_cflags "$@"
1131 int x;
1132 EOF
1133 }
1134
1135 check_host_cpp_condition(){
1136 log check_host_cpp_condition "$@"
1137 header=$1
1138 condition=$2
1139 shift 2
1140 check_host_cpp "$@" <<EOF
1141 #include <$header>
1142 #if !($condition)
1143 #error "unsatisfied condition: $condition"
1144 #endif
1145 EOF
1146 }
1147
1148 apply(){
1149 file=$1
1150 shift
1151 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1152 }
1153
1154 cp_if_changed(){
1155 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1156 mkdir -p "$(dirname $2)"
1157 $cp_f "$1" "$2"
1158 }
1159
1160 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1161 # system-dependent things.
1162
1163 AVCODEC_COMPONENTS="
1164 bsfs
1165 decoders
1166 encoders
1167 hwaccels
1168 parsers
1169 "
1170
1171 AVDEVICE_COMPONENTS="
1172 indevs
1173 outdevs
1174 "
1175 AVFILTER_COMPONENTS="
1176 filters
1177 "
1178 AVFORMAT_COMPONENTS="
1179 demuxers
1180 muxers
1181 protocols
1182 "
1183
1184 AVRESAMPLE_COMPONENTS=""
1185 AVUTIL_COMPONENTS=""
1186
1187 COMPONENT_LIST="
1188 $AVCODEC_COMPONENTS
1189 $AVDEVICE_COMPONENTS
1190 $AVFILTER_COMPONENTS
1191 $AVFORMAT_COMPONENTS
1192 $AVRESAMPLE_COMPONENTS
1193 $AVUTIL_COMPONENTS
1194 "
1195
1196 EXAMPLE_LIST="
1197 avcodec_example
1198 filter_audio_example
1199 metadata_example
1200 output_example
1201 qsvdec_example
1202 transcode_aac_example
1203 "
1204
1205 EXTERNAL_LIBRARY_LIST="
1206 avisynth
1207 bzlib
1208 frei0r
1209 gnutls
1210 libbs2b
1211 libcdio
1212 libdc1394
1213 libdcadec
1214 libfaac
1215 libfdk_aac
1216 libfontconfig
1217 libfreetype
1218 libgsm
1219 libilbc
1220 libkvazaar
1221 libmfx
1222 libmp3lame
1223 libopencore_amrnb
1224 libopencore_amrwb
1225 libopencv
1226 libopenh264
1227 libopenjpeg
1228 libopus
1229 libpulse
1230 librtmp
1231 libschroedinger
1232 libsnappy
1233 libspeex
1234 libtheora
1235 libtwolame
1236 libvo_aacenc
1237 libvo_amrwbenc
1238 libvorbis
1239 libvpx
1240 libwavpack
1241 libwebp
1242 libx264
1243 libx265
1244 libxavs
1245 libxcb
1246 libxcb_shm
1247 libxcb_xfixes
1248 libxvid
1249 mmal
1250 nvenc
1251 openssl
1252 x11grab
1253 zlib
1254 "
1255
1256 FEATURE_LIST="
1257 gray
1258 hardcoded_tables
1259 runtime_cpudetect
1260 safe_bitstream_reader
1261 shared
1262 small
1263 sram
1264 static
1265 swscale_alpha
1266 "
1267
1268 HWACCEL_LIST="
1269 d3d11va
1270 dxva2
1271 vaapi
1272 vda
1273 vdpau
1274 "
1275
1276 LIBRARY_LIST="
1277 avcodec
1278 avdevice
1279 avfilter
1280 avformat
1281 avresample
1282 avutil
1283 swscale
1284 "
1285
1286 LICENSE_LIST="
1287 gpl
1288 nonfree
1289 version3
1290 "
1291
1292 PROGRAM_LIST="
1293 avconv
1294 avplay
1295 avprobe
1296 "
1297
1298 SUBSYSTEM_LIST="
1299 dct
1300 doc
1301 error_resilience
1302 faan
1303 fft
1304 lsp
1305 lzo
1306 mdct
1307 network
1308 rdft
1309 "
1310
1311 CONFIG_LIST="
1312 $COMPONENT_LIST
1313 $EXAMPLE_LIST
1314 $EXTERNAL_LIBRARY_LIST
1315 $FEATURE_LIST
1316 $HWACCEL_LIST
1317 $LICENSE_LIST
1318 $LIBRARY_LIST
1319 $PROGRAM_LIST
1320 $SUBSYSTEM_LIST
1321 memalign_hack
1322 neon_clobber_test
1323 pic
1324 pod2man
1325 texi2html
1326 thumb
1327 valgrind_backtrace
1328 xmm_clobber_test
1329 "
1330
1331 THREADS_LIST="
1332 pthreads
1333 w32threads
1334 "
1335
1336 ATOMICS_LIST="
1337 atomics_gcc
1338 atomics_suncc
1339 atomics_win32
1340 "
1341
1342 ARCH_LIST="
1343 aarch64
1344 alpha
1345 arm
1346 avr32
1347 avr32_ap
1348 avr32_uc
1349 bfin
1350 ia64
1351 m68k
1352 mips
1353 mips64
1354 parisc
1355 ppc
1356 ppc64
1357 s390
1358 sh4
1359 sparc
1360 sparc64
1361 tilegx
1362 tilepro
1363 tomi
1364 x86
1365 x86_32
1366 x86_64
1367 "
1368
1369 ARCH_EXT_LIST_ARM="
1370 armv5te
1371 armv6
1372 armv6t2
1373 armv8
1374 neon
1375 vfp
1376 vfpv3
1377 "
1378
1379 ARCH_EXT_LIST_X86_SIMD="
1380 amd3dnow
1381 amd3dnowext
1382 avx
1383 avx2
1384 fma3
1385 fma4
1386 mmx
1387 mmxext
1388 sse
1389 sse2
1390 sse3
1391 sse4
1392 sse42
1393 ssse3
1394 xop
1395 "
1396
1397 ARCH_EXT_LIST_PPC="
1398 altivec
1399 dcbzl
1400 ldbrx
1401 power8
1402 ppc4xx
1403 vsx
1404 "
1405
1406 ARCH_EXT_LIST_X86="
1407 $ARCH_EXT_LIST_X86_SIMD
1408 cpunop
1409 i686
1410 "
1411
1412 ARCH_EXT_LIST_MIPS="
1413 loongson
1414 mips32r1
1415 mips64r1
1416 mips32r2
1417 mips64r2
1418 mips32r6
1419 mips64r6
1420 "
1421
1422 ARCH_EXT_LIST="
1423 $ARCH_EXT_LIST_ARM
1424 $ARCH_EXT_LIST_MIPS
1425 $ARCH_EXT_LIST_PPC
1426 $ARCH_EXT_LIST_X86
1427 vis
1428 "
1429
1430 ARCH_FEATURES="
1431 aligned_stack
1432 fast_64bit
1433 fast_clz
1434 fast_cmov
1435 local_aligned_8
1436 local_aligned_16
1437 simd_align_16
1438 "
1439
1440 BUILTIN_LIST="
1441 atomic_cas_ptr
1442 machine_rw_barrier
1443 MemoryBarrier
1444 mm_empty
1445 rdtsc
1446 sync_val_compare_and_swap
1447 "
1448 HAVE_LIST_CMDLINE="
1449 inline_asm
1450 symver
1451 yasm
1452 "
1453
1454 HAVE_LIST_PUB="
1455 bigendian
1456 fast_unaligned
1457 "
1458
1459 HEADERS_LIST="
1460 AVFoundation_AVFoundation_h
1461 alsa_asoundlib_h
1462 altivec_h
1463 arpa_inet_h
1464 cdio_paranoia_h
1465 cdio_paranoia_paranoia_h
1466 dev_bktr_ioctl_bt848_h
1467 dev_bktr_ioctl_meteor_h
1468 dev_ic_bt8xx_h
1469 dev_video_bktr_ioctl_bt848_h
1470 dev_video_meteor_ioctl_meteor_h
1471 direct_h
1472 dlfcn_h
1473 d3d11_h
1474 dxva_h
1475 gsm_h
1476 io_h
1477 mach_mach_time_h
1478 machine_ioctl_bt848_h
1479 machine_ioctl_meteor_h
1480 malloc_h
1481 poll_h
1482 sndio_h
1483 soundcard_h
1484 sys_mman_h
1485 sys_param_h
1486 sys_resource_h
1487 sys_select_h
1488 sys_soundcard_h
1489 sys_time_h
1490 sys_un_h
1491 sys_videoio_h
1492 unistd_h
1493 valgrind_valgrind_h
1494 windows_h
1495 winsock2_h
1496 "
1497
1498 INTRINSICS_LIST="
1499 intrinsics_neon
1500 "
1501
1502 MATH_FUNCS="
1503 atanf
1504 atan2f
1505 cbrtf
1506 cosf
1507 exp2
1508 exp2f
1509 expf
1510 isinf
1511 isnan
1512 ldexpf
1513 llrint
1514 llrintf
1515 log2
1516 log2f
1517 log10f
1518 lrint
1519 lrintf
1520 powf
1521 rint
1522 round
1523 roundf
1524 sinf
1525 trunc
1526 truncf
1527 "
1528
1529 SYSTEM_FUNCS="
1530 aligned_malloc
1531 clock_gettime
1532 closesocket
1533 CommandLineToArgvW
1534 CoTaskMemFree
1535 CryptGenRandom
1536 dlopen
1537 fcntl
1538 flt_lim
1539 fork
1540 getaddrinfo
1541 gethrtime
1542 getopt
1543 GetProcessAffinityMask
1544 GetProcessMemoryInfo
1545 GetProcessTimes
1546 getrusage
1547 GetSystemTimeAsFileTime
1548 gettimeofday
1549 gmtime_r
1550 inet_aton
1551 isatty
1552 jack_port_get_latency_range
1553 LoadLibrary
1554 localtime_r
1555 mach_absolute_time
1556 MapViewOfFile
1557 memalign
1558 mkstemp
1559 mmap
1560 mprotect
1561 nanosleep
1562 posix_memalign
1563 sched_getaffinity
1564 SetConsoleTextAttribute
1565 setmode
1566 setrlimit
1567 Sleep
1568 strerror_r
1569 sysconf
1570 sysctl
1571 usleep
1572 VirtualAlloc
1573 "
1574
1575 TOOLCHAIN_FEATURES="
1576 as_dn_directive
1577 as_func
1578 as_object_arch
1579 asm_mod_q
1580 attribute_may_alias
1581 attribute_packed
1582 ebp_available
1583 ebx_available
1584 gnu_as
1585 ibm_asm
1586 inline_asm_labels
1587 pragma_deprecated
1588 symver_asm_label
1589 symver_gnu_asm
1590 vfp_args
1591 xform_asm
1592 xmm_clobbers
1593 "
1594
1595 TYPES_LIST="
1596 CONDITION_VARIABLE_Ptr
1597 socklen_t
1598 struct_addrinfo
1599 struct_group_source_req
1600 struct_ip_mreq_source
1601 struct_ipv6_mreq
1602 struct_pollfd
1603 struct_rusage_ru_maxrss
1604 struct_sockaddr_in6
1605 struct_sockaddr_sa_len
1606 struct_sockaddr_storage
1607 struct_v4l2_frmivalenum_discrete
1608 "
1609
1610 HAVE_LIST="
1611 $ARCH_EXT_LIST
1612 $(add_suffix _external $ARCH_EXT_LIST)
1613 $(add_suffix _inline $ARCH_EXT_LIST)
1614 $ARCH_FEATURES
1615 $ATOMICS_LIST
1616 $BUILTIN_LIST
1617 $HAVE_LIST_CMDLINE
1618 $HAVE_LIST_PUB
1619 $HEADERS_LIST
1620 $INTRINSICS_LIST
1621 $MATH_FUNCS
1622 $SYSTEM_FUNCS
1623 $THREADS_LIST
1624 $TOOLCHAIN_FEATURES
1625 $TYPES_LIST
1626 atomics_native
1627 dos_paths
1628 dxva2_lib
1629 libc_msvcrt
1630 libdc1394_1
1631 libdc1394_2
1632 sdl
1633 section_data_rel_ro
1634 threads
1635 vaapi_x11
1636 vdpau_x11
1637 xlib
1638 "
1639
1640 # options emitted with CONFIG_ prefix but not available on the command line
1641 CONFIG_EXTRA="
1642 aandcttables
1643 ac3dsp
1644 audio_frame_queue
1645 audiodsp
1646 blockdsp
1647 bswapdsp
1648 cabac
1649 dirac_parse
1650 dvprofile
1651 faandct
1652 faanidct
1653 fdctdsp
1654 flacdsp
1655 fmtconvert
1656 g722dsp
1657 gcrypt
1658 gmp
1659 golomb
1660 gplv3
1661 h263dsp
1662 h264chroma
1663 h264dsp
1664 h264pred
1665 h264qpel
1666 hpeldsp
1667 huffman
1668 huffyuvdsp
1669 huffyuvencdsp
1670 idctdsp
1671 iirfilter
1672 imdct15
1673 intrax8
1674 ividsp
1675 jpegtables
1676 libx262
1677 lgplv3
1678 lpc
1679 lzf
1680 me_cmp
1681 mpeg_er
1682 mpegaudio
1683 mpegaudiodsp
1684 mpegvideo
1685 mpegvideoenc
1686 mss34dsp
1687 pixblockdsp
1688 qpeldsp
1689 qsv
1690 qsvdec
1691 qsvenc
1692 rangecoder
1693 riffdec
1694 riffenc
1695 rtpdec
1696 rtpenc_chain
1697 rv34dsp
1698 sinewin
1699 snappy
1700 startcode
1701 texturedsp
1702 texturedspenc
1703 tpeldsp
1704 videodsp
1705 vp3dsp
1706 vp56dsp
1707 vp8dsp
1708 wma_freqs
1709 wmv2dsp
1710 "
1711
1712 CMDLINE_SELECT="
1713 $ARCH_EXT_LIST
1714 $CONFIG_LIST
1715 $HAVE_LIST_CMDLINE
1716 $THREADS_LIST
1717 asm
1718 cross_compile
1719 debug
1720 extra_warnings
1721 logging
1722 lto
1723 optimizations
1724 rpath
1725 "
1726
1727 PATHS_LIST="
1728 bindir
1729 datadir
1730 docdir
1731 incdir
1732 libdir
1733 mandir
1734 prefix
1735 shlibdir
1736 "
1737
1738 CMDLINE_SET="
1739 $PATHS_LIST
1740 ar
1741 arch
1742 as
1743 build_suffix
1744 cc
1745 objcc
1746 cpu
1747 cross_prefix
1748 custom_allocator
1749 dep_cc
1750 env
1751 extra_version
1752 host_cc
1753 host_cflags
1754 host_ld
1755 host_ldflags
1756 host_libs
1757 host_os
1758 ld
1759 logfile
1760 malloc_prefix
1761 nm
1762 optflags
1763 pkg_config
1764 pkg_config_flags
1765 random_seed
1766 samples
1767 sysinclude
1768 sysroot
1769 target_exec
1770 target_os
1771 target_path
1772 target_samples
1773 toolchain
1774 "
1775
1776 CMDLINE_APPEND="
1777 extra_cflags
1778 extra_objcflags
1779 host_cppflags
1780 "
1781
1782 # code dependency declarations
1783
1784 # architecture extensions
1785
1786 armv5te_deps="arm"
1787 armv6_deps="arm"
1788 armv6t2_deps="arm"
1789 armv8_deps="aarch64"
1790 neon_deps_any="aarch64 arm"
1791 intrinsics_neon_deps="neon"
1792 vfp_deps_any="aarch64 arm"
1793 vfpv3_deps="vfp"
1794
1795 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1796
1797 altivec_deps="ppc"
1798 ppc4xx_deps="ppc"
1799 vsx_deps="altivec"
1800 power8_deps="vsx"
1801
1802 cpunop_deps="i686"
1803 x86_64_select="i686"
1804 x86_64_suggest="fast_cmov"
1805
1806 amd3dnow_deps="mmx"
1807 amd3dnowext_deps="amd3dnow"
1808 i686_deps="x86"
1809 mmx_deps="x86"
1810 mmxext_deps="mmx"
1811 sse_deps="mmxext"
1812 sse2_deps="sse"
1813 sse3_deps="sse2"
1814 ssse3_deps="sse3"
1815 sse4_deps="ssse3"
1816 sse42_deps="sse4"
1817 avx_deps="sse42"
1818 xop_deps="avx"
1819 fma3_deps="avx"
1820 fma4_deps="avx"
1821 avx2_deps="avx"
1822
1823 mmx_external_deps="yasm"
1824 mmx_inline_deps="inline_asm"
1825 mmx_suggest="mmx_external mmx_inline"
1826
1827 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1828 eval dep=\$${ext}_deps
1829 eval ${ext}_external_deps='"${dep}_external"'
1830 eval ${ext}_inline_deps='"${dep}_inline"'
1831 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1832 done
1833
1834 aligned_stack_if_any="aarch64 ppc x86"
1835 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1836 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1837 fast_unaligned_if_any="aarch64 ppc x86"
1838 simd_align_16_if_any="altivec neon sse"
1839
1840 # system capabilities
1841 symver_if_any="symver_asm_label symver_gnu_asm"
1842 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1843
1844 # threading support
1845 atomics_gcc_if="sync_val_compare_and_swap"
1846 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1847 atomics_win32_if="MemoryBarrier"
1848 atomics_native_if_any="$ATOMICS_LIST"
1849 w32threads_deps="atomics_native"
1850 threads_if_any="$THREADS_LIST"
1851
1852 # subsystems
1853 dct_select="rdft"
1854 dirac_parse_select="golomb"
1855 error_resilience_select="me_cmp"
1856 faandct_deps="faan fdctdsp"
1857 faanidct_deps="faan idctdsp"
1858 intrax8_select="error_resilience"
1859 mdct_select="fft"
1860 rdft_select="fft"
1861 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1862 mpeg_er_select="error_resilience"
1863 mpegaudio_select="mpegaudiodsp"
1864 mpegaudiodsp_select="dct"
1865 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1866 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1867 nvenc_deps_any="dlopen LoadLibrary"
1868 nvenc_extralibs='$ldl'
1869 qsvdec_select="qsv"
1870 qsvenc_select="qsv"
1871
1872 # decoders / encoders
1873 aac_decoder_select="imdct15 mdct sinewin"
1874 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1875 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1876 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1877 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1878 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1879 adpcm_g722_decoder_select="g722dsp"
1880 adpcm_g722_encoder_select="g722dsp"
1881 aic_decoder_select="golomb idctdsp"
1882 alac_encoder_select="lpc"
1883 als_decoder_select="bswapdsp"
1884 amrnb_decoder_select="lsp"
1885 amrwb_decoder_select="lsp"
1886 amv_decoder_select="sp5x_decoder"
1887 ape_decoder_select="bswapdsp"
1888 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1889 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1890 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1891 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1892 atrac1_decoder_select="mdct sinewin"
1893 atrac3_decoder_select="mdct"
1894 atrac3p_decoder_select="mdct sinewin"
1895 bink_decoder_select="blockdsp hpeldsp"
1896 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1897 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1898 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1899 cllc_decoder_select="bswapdsp"
1900 comfortnoise_encoder_select="lpc"
1901 cook_decoder_select="audiodsp mdct sinewin"
1902 cscd_decoder_select="lzo"
1903 cscd_decoder_suggest="zlib"
1904 dca_decoder_select="fmtconvert mdct"
1905 dds_decoder_select="texturedsp"
1906 dnxhd_decoder_select="blockdsp idctdsp"
1907 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1908 dvvideo_decoder_select="dvprofile idctdsp"
1909 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1910 dxa_decoder_deps="zlib"
1911 dxv_decoder_select="lzf texturedsp"
1912 eac3_decoder_select="ac3_decoder"
1913 eac3_encoder_select="ac3_encoder"
1914 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1915 eatgq_decoder_select="aandcttables idctdsp"
1916 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1917 exr_decoder_deps="zlib"
1918 ffv1_decoder_select="golomb rangecoder"
1919 ffv1_encoder_select="rangecoder"
1920 ffvhuff_decoder_select="huffyuv_decoder"
1921 ffvhuff_encoder_select="huffyuv_encoder"
1922 fic_decoder_select="golomb"
1923 flac_decoder_select="flacdsp golomb"
1924 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1925 flashsv_decoder_deps="zlib"
1926 flashsv_encoder_deps="zlib"
1927 flashsv2_decoder_deps="zlib"
1928 flv_decoder_select="h263_decoder"
1929 flv_encoder_select="h263_encoder"
1930 fourxm_decoder_select="blockdsp bswapdsp"
1931 fraps_decoder_select="bswapdsp huffman"
1932 g2m_decoder_deps="zlib"
1933 g2m_decoder_select="blockdsp idctdsp jpegtables"
1934 h261_decoder_select="mpeg_er mpegvideo"
1935 h261_encoder_select="aandcttables mpegvideoenc"
1936 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1937 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1938 h263i_decoder_select="h263_decoder"
1939 h263p_encoder_select="h263_encoder"
1940 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1941 h264_decoder_suggest="error_resilience"
1942 h264_nvenc_encoder_deps="nvenc"
1943 h264_qsv_decoder_deps="libmfx"
1944 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1945 h264_qsv_encoder_deps="libmfx"
1946 h264_qsv_encoder_select="qsvenc"
1947 hap_decoder_select="snappy texturedsp"
1948 hap_encoder_deps="libsnappy"
1949 hap_encoder_select="texturedspenc"
1950 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1951 hevc_nvenc_encoder_deps="nvenc"
1952 hevc_qsv_encoder_deps="libmfx"
1953 hevc_qsv_decoder_deps="libmfx"
1954 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1955 hevc_qsv_encoder_select="qsvenc"
1956 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1957 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1958 iac_decoder_select="imc_decoder"
1959 imc_decoder_select="bswapdsp fft mdct sinewin"
1960 indeo3_decoder_select="hpeldsp"
1961 indeo4_decoder_select="ividsp"
1962 indeo5_decoder_select="ividsp"
1963 interplay_video_decoder_select="hpeldsp"
1964 jpegls_decoder_select="golomb mjpeg_decoder"
1965 jpegls_encoder_select="golomb"
1966 jv_decoder_select="blockdsp"
1967 lagarith_decoder_select="huffyuvdsp"
1968 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1969 loco_decoder_select="golomb"
1970 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1971 metasound_decoder_select="lsp mdct sinewin"
1972 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1973 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1974 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1975 mjpegb_decoder_select="mjpeg_decoder"
1976 mlp_decoder_select="mlp_parser"
1977 motionpixels_decoder_select="bswapdsp"
1978 mp1_decoder_select="mpegaudio"
1979 mp1float_decoder_select="mpegaudio"
1980 mp2_decoder_select="mpegaudio"
1981 mp2float_decoder_select="mpegaudio"
1982 mp3_decoder_select="mpegaudio"
1983 mp3adu_decoder_select="mpegaudio"
1984 mp3adufloat_decoder_select="mpegaudio"
1985 mp3float_decoder_select="mpegaudio"
1986 mp3on4_decoder_select="mpegaudio"
1987 mp3on4float_decoder_select="mpegaudio"
1988 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1989 mpc8_decoder_select="mpegaudiodsp"
1990 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1991 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1992 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1993 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1994 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1995 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1996 mpeg2_qsv_decoder_deps="libmfx"
1997 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1998 mpeg2_qsv_encoder_deps="libmfx"
1999 mpeg2_qsv_encoder_select="qsvenc"
2000 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2001 mpeg4_encoder_select="h263_encoder"
2002 msa1_decoder_select="mss34dsp"
2003 msmpeg4v1_decoder_select="h263_decoder"
2004 msmpeg4v2_decoder_select="h263_decoder"
2005 msmpeg4v2_encoder_select="h263_encoder"
2006 msmpeg4v3_decoder_select="h263_decoder"
2007 msmpeg4v3_encoder_select="h263_encoder"
2008 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2009 mts2_decoder_select="mss34dsp"
2010 mxpeg_decoder_select="mjpeg_decoder"
2011 nellymoser_decoder_select="mdct sinewin"
2012 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2013 nuv_decoder_select="idctdsp lzo"
2014 nvenc_h264_encoder_deps="nvenc"
2015 nvenc_hevc_encoder_deps="nvenc"
2016 on2avc_decoder_select="mdct"
2017 opus_decoder_deps="avresample"
2018 opus_decoder_select="imdct15"
2019 png_decoder_deps="zlib"
2020 png_encoder_deps="zlib"
2021 png_encoder_select="huffyuvencdsp"
2022 prores_decoder_select="idctdsp"
2023 prores_encoder_select="fdctdsp"
2024 qcelp_decoder_select="lsp"
2025 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2026 ra_144_encoder_select="audio_frame_queue lpc"
2027 ralf_decoder_select="golomb"
2028 rscc_decoder_deps="zlib"
2029 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2030 rv10_encoder_select="h263_encoder"
2031 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2032 rv20_encoder_select="h263_encoder"
2033 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2034 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2035 screenpresso_decoder_deps="zlib"
2036 shorten_decoder_select="golomb"
2037 sipr_decoder_select="lsp"
2038 sp5x_decoder_select="mjpeg_decoder"
2039 svq1_decoder_select="hpeldsp"
2040 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2041 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2042 svq3_decoder_suggest="zlib"
2043 tak_decoder_select="audiodsp"
2044 tdsc_decoder_deps="zlib"
2045 tdsc_decoder_select="mjpeg_decoder"
2046 theora_decoder_select="vp3_decoder"
2047 thp_decoder_select="mjpeg_decoder"
2048 tiff_decoder_suggest="zlib"
2049 tiff_encoder_suggest="zlib"
2050 truehd_decoder_select="mlp_decoder"
2051 truemotion2_decoder_select="bswapdsp"
2052 truespeech_decoder_select="bswapdsp"
2053 tscc_decoder_deps="zlib"
2054 txd_decoder_select="texturedsp"
2055 twinvq_decoder_select="mdct lsp sinewin"
2056 utvideo_decoder_select="bswapdsp"
2057 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2058 vble_decoder_select="huffyuvdsp"
2059 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2060 vc1image_decoder_select="vc1_decoder"
2061 vorbis_decoder_select="mdct"
2062 vorbis_encoder_select="mdct"
2063 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2064 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2065 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2066 vp6a_decoder_select="vp6_decoder"
2067 vp6f_decoder_select="vp6_decoder"
2068 vp7_decoder_select="h264pred videodsp vp8dsp"
2069 vp8_decoder_select="h264pred videodsp vp8dsp"
2070 vp9_decoder_select="videodsp"
2071 webp_decoder_select="vp8_decoder"
2072 wmapro_decoder_select="mdct sinewin wma_freqs"
2073 wmav1_decoder_select="mdct sinewin wma_freqs"
2074 wmav1_encoder_select="mdct sinewin wma_freqs"
2075 wmav2_decoder_select="mdct sinewin wma_freqs"
2076 wmav2_encoder_select="mdct sinewin wma_freqs"
2077 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2078 wmv1_decoder_select="h263_decoder"
2079 wmv1_encoder_select="h263_encoder"
2080 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2081 wmv2_encoder_select="h263_encoder wmv2dsp"
2082 wmv3_decoder_select="vc1_decoder"
2083 wmv3image_decoder_select="wmv3_decoder"
2084 zerocodec_decoder_deps="zlib"
2085 zlib_decoder_deps="zlib"
2086 zlib_encoder_deps="zlib"
2087 zmbv_decoder_deps="zlib"
2088 zmbv_encoder_deps="zlib"
2089
2090 # hardware accelerators
2091 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2092 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2093 vaapi_deps="va_va_h"
2094 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2095 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2096 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2097
2098 h263_vaapi_hwaccel_deps="vaapi"
2099 h263_vaapi_hwaccel_select="h263_decoder"
2100 h264_d3d11va_hwaccel_deps="d3d11va"
2101 h264_d3d11va_hwaccel_select="h264_decoder"
2102 h264_dxva2_hwaccel_deps="dxva2"
2103 h264_dxva2_hwaccel_select="h264_decoder"
2104 h264_mmal_decoder_deps="mmal"
2105 h264_mmal_hwaccel_deps="mmal"
2106 h264_mmal_decoder_select="h264_decoder"
2107 h264_mmal_encoder_deps="mmal"
2108 h264_qsv_hwaccel_deps="libmfx"
2109 h264_vaapi_hwaccel_deps="vaapi"
2110 h264_vaapi_hwaccel_select="h264_decoder"
2111 h264_vda_hwaccel_deps="vda"
2112 h264_vda_hwaccel_select="h264_decoder"
2113 h264_vda_old_hwaccel_deps="vda"
2114 h264_vda_old_hwaccel_select="h264_decoder"
2115 h264_vdpau_hwaccel_deps="vdpau"
2116 h264_vdpau_hwaccel_select="h264_decoder"
2117 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2118 hevc_d3d11va_hwaccel_select="hevc_decoder"
2119 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2120 hevc_dxva2_hwaccel_select="hevc_decoder"
2121 hevc_qsv_hwaccel_deps="libmfx"
2122 mpeg1_vdpau_hwaccel_deps="vdpau"
2123 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2124 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2125 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2126 mpeg2_dxva2_hwaccel_deps="dxva2"
2127 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2128 mpeg2_qsv_hwaccel_deps="libmfx"
2129 mpeg2_vaapi_hwaccel_deps="vaapi"
2130 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2131 mpeg2_vdpau_hwaccel_deps="vdpau"
2132 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2133 mpeg4_vaapi_hwaccel_deps="vaapi"
2134 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2135 mpeg4_vdpau_hwaccel_deps="vdpau"
2136 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2137 vc1_d3d11va_hwaccel_deps="d3d11va"
2138 vc1_d3d11va_hwaccel_select="vc1_decoder"
2139 vc1_dxva2_hwaccel_deps="dxva2"
2140 vc1_dxva2_hwaccel_select="vc1_decoder"
2141 vc1_vaapi_hwaccel_deps="vaapi"
2142 vc1_vaapi_hwaccel_select="vc1_decoder"
2143 vc1_vdpau_hwaccel_deps="vdpau"
2144 vc1_vdpau_hwaccel_select="vc1_decoder"
2145 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2146 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2147 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2148 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2149
2150 # parsers
2151 h264_parser_select="h264_decoder"
2152 hevc_parser_select="golomb"
2153 mpegvideo_parser_select="mpegvideo"
2154 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2155 vc1_parser_select="mpegvideo startcode vc1_decoder"
2156
2157 # bitstream_filters
2158 mjpeg2jpeg_bsf_select="jpegtables"
2159
2160 # external libraries
2161 libdcadec_decoder_deps="libdcadec"
2162 libfaac_encoder_deps="libfaac"
2163 libfaac_encoder_select="audio_frame_queue"
2164 libfdk_aac_decoder_deps="libfdk_aac"
2165 libfdk_aac_encoder_deps="libfdk_aac"
2166 libfdk_aac_encoder_select="audio_frame_queue"
2167 libgsm_decoder_deps="libgsm"
2168 libgsm_encoder_deps="libgsm"
2169 libgsm_ms_decoder_deps="libgsm"
2170 libgsm_ms_encoder_deps="libgsm"
2171 libilbc_decoder_deps="libilbc"
2172 libilbc_encoder_deps="libilbc"
2173 libkvazaar_encoder_deps="libkvazaar"
2174 libmp3lame_encoder_deps="libmp3lame"
2175 libmp3lame_encoder_select="audio_frame_queue"
2176 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2177 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2178 libopencore_amrnb_encoder_select="audio_frame_queue"
2179 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2180 libopenh264_encoder_deps="libopenh264"
2181 libopenjpeg_decoder_deps="libopenjpeg"
2182 libopenjpeg_encoder_deps="libopenjpeg"
2183 libopus_decoder_deps="libopus"
2184 libopus_encoder_deps="libopus"
2185 libopus_encoder_select="audio_frame_queue"
2186 libschroedinger_decoder_deps="libschroedinger"
2187 libschroedinger_encoder_deps="libschroedinger"
2188 libspeex_decoder_deps="libspeex"
2189 libspeex_encoder_deps="libspeex"
2190 libspeex_encoder_select="audio_frame_queue"
2191 libtheora_encoder_deps="libtheora"
2192 libtwolame_encoder_deps="libtwolame"
2193 libvo_aacenc_encoder_deps="libvo_aacenc"
2194 libvo_aacenc_encoder_select="audio_frame_queue"
2195 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2196 libvorbis_encoder_deps="libvorbis"
2197 libvorbis_encoder_select="audio_frame_queue"
2198 libvpx_vp8_decoder_deps="libvpx"
2199 libvpx_vp8_encoder_deps="libvpx"
2200 libvpx_vp9_decoder_deps="libvpx"
2201 libvpx_vp9_encoder_deps="libvpx"
2202 libwavpack_encoder_deps="libwavpack"
2203 libwebp_encoder_deps="libwebp"
2204 libx262_encoder_deps="libx262"
2205 libx264_encoder_deps="libx264"
2206 libx265_encoder_deps="libx265"
2207 libxavs_encoder_deps="libxavs"
2208 libxvid_encoder_deps="libxvid"
2209
2210 # demuxers / muxers
2211 ac3_demuxer_select="ac3_parser"
2212 asf_demuxer_select="riffdec"
2213 asf_muxer_select="riffenc"
2214 asf_stream_muxer_select="asf_muxer"
2215 avi_demuxer_select="riffdec"
2216 avi_muxer_select="riffenc"
2217 avisynth_demuxer_deps="avisynth"
2218 avisynth_demuxer_select="riffdec"
2219 caf_demuxer_select="riffdec"
2220 dash_muxer_select="mp4_muxer"
2221 dirac_demuxer_select="dirac_parser"
2222 dv_demuxer_select="dvprofile"
2223 dv_muxer_select="dvprofile"
2224 dxa_demuxer_select="riffdec"
2225 eac3_demuxer_select="ac3_parser"
2226 f4v_muxer_select="mov_muxer"
2227 flac_demuxer_select="flac_parser"
2228 hds_muxer_select="flv_muxer"
2229 hls_muxer_select="mpegts_muxer"
2230 ipod_muxer_select="mov_muxer"
2231 ismv_muxer_select="mov_muxer"
2232 matroska_audio_muxer_select="matroska_muxer"
2233 matroska_demuxer_select="riffdec"
2234 matroska_demuxer_suggest="bzlib lzo zlib"
2235 matroska_muxer_select="riffenc"
2236 mmf_muxer_select="riffenc"
2237 mov_demuxer_select="riffdec"
2238 mov_demuxer_suggest="zlib"
2239 mov_muxer_select="riffenc rtpenc_chain"
2240 mp3_demuxer_select="mpegaudio_parser"
2241 mp4_muxer_select="mov_muxer"
2242 mpegts_muxer_select="adts_muxer latm_muxer"
2243 mpegtsraw_demuxer_select="mpegts_demuxer"
2244 mxf_d10_muxer_select="mxf_muxer"
2245 nut_muxer_select="riffenc"
2246 nuv_demuxer_select="riffdec"
2247 oga_muxer_select="ogg_muxer"
2248 ogg_demuxer_select="dirac_parse"
2249 opus_muxer_select="ogg_muxer"
2250 psp_muxer_select="mov_muxer"
2251 rtp_demuxer_select="sdp_demuxer"
2252 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2253 rtsp_demuxer_select="http_protocol rtpdec"
2254 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2255 sap_demuxer_select="sdp_demuxer"
2256 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2257 sdp_demuxer_select="rtpdec"
2258 smoothstreaming_muxer_select="ismv_muxer"
2259 spdif_muxer_select="aac_parser"
2260 spx_muxer_select="ogg_muxer"
2261 swf_demuxer_suggest="zlib"
2262 tak_demuxer_select="tak_parser"
2263 tg2_muxer_select="mov_muxer"
2264 tgp_muxer_select="mov_muxer"
2265 w64_demuxer_select="wav_demuxer"
2266 wav_demuxer_select="riffdec"
2267 wav_muxer_select="riffenc"
2268 webm_muxer_select="riffenc"
2269 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2270 wtv_demuxer_select="riffdec"
2271 xmv_demuxer_select="riffdec"
2272 xwma_demuxer_select="riffdec"
2273
2274 # indevs / outdevs
2275 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2276 alsa_outdev_deps="alsa_asoundlib_h"
2277 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2278 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2279 dv1394_indev_deps="dv1394"
2280 dv1394_indev_select="dv_demuxer"
2281 fbdev_indev_deps="linux_fb_h"
2282 jack_indev_deps="jack_jack_h pthreads"
2283 libcdio_indev_deps="libcdio"
2284 libdc1394_indev_deps="libdc1394"
2285 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2286 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2287 pulse_indev_deps="libpulse"
2288 sndio_indev_deps="sndio_h"
2289 sndio_outdev_deps="sndio_h"
2290 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2291 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2292 vfwcap_indev_extralibs="-lavicap32"
2293 x11grab_indev_deps="x11grab"
2294 x11grab_xcb_indev_deps="libxcb"
2295
2296 # protocols
2297 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2298 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2299 ffrtmpcrypt_protocol_select="tcp_protocol"
2300 ffrtmphttp_protocol_deps="!librtmp_protocol"
2301 ffrtmphttp_protocol_select="http_protocol"
2302 gopher_protocol_select="network"
2303 http_protocol_select="tcp_protocol"
2304 httpproxy_protocol_select="tcp_protocol"
2305 https_protocol_select="tls_protocol"
2306 icecast_protocol_select="http_protocol"
2307 librtmp_protocol_deps="librtmp"
2308 librtmpe_protocol_deps="librtmp"
2309 librtmps_protocol_deps="librtmp"
2310 librtmpt_protocol_deps="librtmp"
2311 librtmpte_protocol_deps="librtmp"
2312 mmsh_protocol_select="http_protocol"
2313 mmst_protocol_select="network"
2314 rtmp_protocol_deps="!librtmp_protocol"
2315 rtmp_protocol_select="tcp_protocol"
2316 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2317 rtmps_protocol_deps="!librtmp_protocol"
2318 rtmps_protocol_select="tls_protocol"
2319 rtmpt_protocol_select="ffrtmphttp_protocol"
2320 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2321 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2322 rtp_protocol_select="udp_protocol"
2323 sctp_protocol_deps="struct_sctp_event_subscribe"
2324 sctp_protocol_select="network"
2325 srtp_protocol_select="rtp_protocol"
2326 tcp_protocol_select="network"
2327 tls_gnutls_protocol_deps="gnutls"
2328 tls_gnutls_protocol_select="tcp_protocol"
2329 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2330 tls_openssl_protocol_select="tcp_protocol"
2331 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2332 udp_protocol_select="network"
2333 unix_protocol_deps="sys_un_h"
2334 unix_protocol_select="network"
2335
2336 # filters
2337 blackframe_filter_deps="gpl"
2338 boxblur_filter_deps="gpl"
2339 bs2b_filter_deps="libbs2b"
2340 cropdetect_filter_deps="gpl"
2341 delogo_filter_deps="gpl"
2342 drawtext_filter_deps="libfreetype"
2343 frei0r_filter_deps="frei0r dlopen"
2344 frei0r_filter_extralibs='$ldl'
2345 frei0r_src_filter_deps="frei0r dlopen"
2346 frei0r_src_filter_extralibs='$ldl'
2347 hqdn3d_filter_deps="gpl"
2348 interlace_filter_deps="gpl"
2349 ocv_filter_deps="libopencv"
2350 resample_filter_deps="avresample"
2351 scale_filter_deps="swscale"
2352
2353 # examples
2354 avcodec_example_deps="avcodec avutil"
2355 filter_audio_example_deps="avfilter avutil"
2356 metadata_example_deps="avformat avutil"
2357 output_example_deps="avcodec avformat avutil swscale"
2358 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2359 transcode_aac_example_deps="avcodec avformat avresample"
2360
2361 # libraries, in linking order
2362 avcodec_deps="avutil"
2363 avdevice_deps="avformat avcodec avutil"
2364 avfilter_deps="avutil"
2365 avformat_deps="avcodec avutil"
2366 avresample_deps="avutil"
2367 swscale_deps="avutil"
2368
2369 # programs
2370 avconv_deps="avcodec avfilter avformat avresample swscale"
2371 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2372 fps_filter null_filter resample_filter scale_filter
2373 setpts_filter trim_filter"
2374 avplay_deps="avcodec avformat avresample swscale sdl"
2375 avplay_libs='$sdl_libs'
2376 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2377 avprobe_deps="avcodec avformat"
2378
2379 # documentation
2380 pod2man_deps="doc"
2381 texi2html_deps="doc"
2382
2383 # default parameters
2384
2385 logfile="config.log"
2386
2387 # installation paths
2388 prefix_default="/usr/local"
2389 bindir_default='${prefix}/bin'
2390 datadir_default='${prefix}/share/avconv'
2391 docdir_default='${prefix}/share/doc/libav'
2392 incdir_default='${prefix}/include'
2393 libdir_default='${prefix}/lib'
2394 mandir_default='${prefix}/share/man'
2395 shlibdir_default="$libdir_default"
2396
2397 # toolchain
2398 ar_default="ar"
2399 cc_default="gcc"
2400 host_cc_default="gcc"
2401 cp_f="cp -f"
2402 ln_s="ln -s -f"
2403 nm_default="nm -g"
2404 objformat="elf"
2405 pkg_config_default=pkg-config
2406 ranlib="ranlib"
2407 strip="strip"
2408 yasmexe="yasm"
2409
2410 # machine
2411 arch_default=$(uname -m)
2412 cpu="generic"
2413 intrinsics="none"
2414
2415 # OS
2416 target_os_default=$(tolower $(uname -s))
2417 host_os=$target_os_default
2418
2419 # configurable options
2420 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2421
2422 enable asm
2423 enable debug
2424 enable doc
2425 enable faan faandct faanidct
2426 enable optimizations
2427 enable safe_bitstream_reader
2428 enable static
2429 enable swscale_alpha
2430 enable valgrind_backtrace
2431
2432 # By default, enable only those hwaccels that have no external dependencies.
2433 enable d3d11va dxva2 vda vdpau
2434
2435 # build settings
2436 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2437 LIBPREF="lib"
2438 LIBSUF=".a"
2439 FULLNAME='$(NAME)$(BUILDSUF)'
2440 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2441 SLIBPREF="lib"
2442 SLIBSUF=".so"
2443 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2444 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2445 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2446 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2447 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2448 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2449
2450 asflags_filter=echo
2451 cflags_filter=echo
2452 ldflags_filter=echo
2453
2454 AS_C='-c'
2455 AS_O='-o $@'
2456 CC_C='-c'
2457 CC_E='-E -o $@'
2458 CC_O='-o $@'
2459 OBJCC_C='-c'
2460 OBJCC_E='-E -o $@'
2461 OBJCC_O='-o $@'
2462 LD_O='-o $@'
2463 LD_LIB='-l%'
2464 LD_PATH='-L'
2465 HOSTCC_C='-c'
2466 HOSTCC_E='-E -o $@'
2467 HOSTCC_O='-o $@'
2468 HOSTLD_O='-o $@'
2469
2470 host_libs='-lm'
2471 host_cflags_filter=echo
2472 host_ldflags_filter=echo
2473
2474 target_path='$(CURDIR)'
2475
2476 # since the object filename is not given with the -MM flag, the compiler
2477 # is only able to print the basename, and we must add the path ourselves
2478 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2479 DEPFLAGS='-MM'
2480
2481 # find source path
2482 if test -f configure; then
2483 source_path=.
2484 else
2485 source_path=$(cd $(dirname "$0"); pwd)
2486 echo "$source_path" | grep -q '[[:blank:]]' &&
2487 die "Out of tree builds are impossible with whitespace in source path."
2488 test -e "$source_path/config.h" &&
2489 die "Out of tree builds are impossible with config.h in source dir."
2490 fi
2491
2492 for v in "$@"; do
2493 r=${v#*=}
2494 l=${v%"$r"}
2495 r=$(sh_quote "$r")
2496 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2497 done
2498
2499 find_things(){
2500 thing=$1
2501 pattern=$2
2502 file=$source_path/$3
2503 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2504 }
2505
2506 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2507 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2508 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2509 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2510 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2511 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2512 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2513 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2514 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2515 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2516 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2517
2518 ALL_COMPONENTS="
2519 $BSF_LIST
2520 $DECODER_LIST
2521 $DEMUXER_LIST
2522 $ENCODER_LIST
2523 $FILTER_LIST
2524 $HWACCEL_LIST
2525 $INDEV_LIST
2526 $MUXER_LIST
2527 $OUTDEV_LIST
2528 $PARSER_LIST
2529 $PROTOCOL_LIST
2530 "
2531
2532 for n in $COMPONENT_LIST; do
2533 v=$(toupper ${n%s})_LIST
2534 eval enable \$$v
2535 eval ${n}_if_any="\$$v"
2536 done
2537
2538 enable $ARCH_EXT_LIST
2539
2540 die_unknown(){
2541 echo "Unknown option \"$1\"."
2542 echo "See $0 --help for available options."
2543 exit 1
2544 }
2545
2546 print_3_columns() {
2547 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2548 }
2549
2550 show_list() {
2551 suffix=_$1
2552 shift
2553 echo $* | sed s/$suffix//g | print_3_columns
2554 exit 0
2555 }
2556
2557 rand_list(){
2558 IFS=', '
2559 set -- $*
2560 unset IFS
2561 for thing; do
2562 comp=${thing%:*}
2563 prob=${thing#$comp}
2564 prob=${prob#:}
2565 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2566 echo "prob ${prob:-0.5}"
2567 printf '%s\n' $comp
2568 done
2569 }
2570
2571 do_random(){
2572 action=$1
2573 shift
2574 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2575 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2576 }
2577
2578 for opt do
2579 optval="${opt#*=}"
2580 case "$opt" in
2581 --extra-ldflags=*)
2582 add_ldflags $optval
2583 ;;
2584 --extra-ldexeflags=*)
2585 add_ldexeflags $optval
2586 ;;
2587 --extra-libs=*)
2588 add_extralibs $optval
2589 ;;
2590 --disable-devices)
2591 disable $INDEV_LIST $OUTDEV_LIST
2592 ;;
2593 --enable-debug=*)
2594 debuglevel="$optval"
2595 ;;
2596 --disable-programs)
2597 disable $PROGRAM_LIST
2598 ;;
2599 --disable-everything)
2600 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2601 ;;
2602 --disable-all)
2603 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2604 disable $LIBRARY_LIST $PROGRAM_LIST doc
2605 ;;
2606 --enable-random|--disable-random)
2607 action=${opt%%-random}
2608 do_random ${action#--} $COMPONENT_LIST
2609 ;;
2610 --enable-random=*|--disable-random=*)
2611 action=${opt%%-random=*}
2612 do_random ${action#--} $optval
2613 ;;
2614 --enable-*=*|--disable-*=*)
2615 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2616 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2617 eval list=\$$(toupper $thing)_LIST
2618 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2619 $action $(filter "$name" $list)
2620 ;;
2621 --enable-avserver|--disable-avserver*)
2622 warn "avserver has been removed, the ${opt} option is only"\
2623 "provided for compatibility and will be removed in the future"
2624 ;;
2625 --enable-?*|--disable-?*)
2626 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2627 if is_in $option $COMPONENT_LIST; then
2628 test $action = disable && action=unset
2629 eval $action \$$(toupper ${option%s})_LIST
2630 elif is_in $option $CMDLINE_SELECT; then
2631 $action $option
2632 else
2633 die_unknown $opt
2634 fi
2635 ;;
2636 --list-*)
2637 NAME="${opt#--list-}"
2638 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2639 NAME=${NAME%s}
2640 eval show_list $NAME \$$(toupper $NAME)_LIST
2641 ;;
2642 --help|-h) show_help
2643 ;;
2644 *)
2645 optname="${opt%%=*}"
2646 optname="${optname#--}"
2647 optname=$(echo "$optname" | sed 's/-/_/g')
2648 if is_in $optname $CMDLINE_SET; then
2649 eval $optname='$optval'
2650 elif is_in $optname $CMDLINE_APPEND; then
2651 append $optname "$optval"
2652 else
2653 die_unknown $opt
2654 fi
2655 ;;
2656 esac
2657 done
2658
2659 for e in $env; do
2660 eval "export $e"
2661 done
2662
2663 disabled logging && logfile=/dev/null
2664
2665 # Disable all the library-specific components if the library itself
2666 # is disabled, see AVCODEC_LIST and following _LIST variables.
2667
2668 disable_components(){
2669 disabled ${1} && disable $(
2670 eval components="\$$(toupper ${1})_COMPONENTS"
2671 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2672 )
2673 }
2674
2675 map 'disable_components $v' $LIBRARY_LIST
2676
2677 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2678 set >> $logfile
2679
2680 case "$toolchain" in
2681 clang-asan)
2682 cc_default="clang"
2683 add_cflags -fsanitize=address
2684 add_ldflags -fsanitize=address
2685 ;;
2686 clang-tsan)
2687 cc_default="clang"
2688 add_cflags -fsanitize=thread -pie
2689 add_ldflags -fsanitize=thread -pie
2690 ;;
2691 clang-usan)
2692 cc_default="clang"
2693 add_cflags -fsanitize=undefined -O1
2694 add_ldflags -fsanitize=undefined
2695 ;;
2696 gcc-asan)
2697 cc_default="gcc"
2698 add_cflags -fsanitize=address
2699 add_ldflags -fsanitize=address
2700 ;;
2701 gcc-tsan)
2702 cc_default="gcc"
2703 add_cflags -fsanitize=thread -pie -fPIC
2704 add_ldflags -fsanitize=thread -pie -fPIC
2705 ;;
2706 gcc-usan)
2707 cc_default="gcc"
2708 add_cflags -fsanitize=undefined
2709 add_ldflags -fsanitize=undefined
2710 ;;
2711 valgrind-massif)
2712 target_exec_default="valgrind"
2713 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2714 ;;
2715 valgrind-memcheck)
2716 target_exec_default="valgrind"
2717 target_exec_args="--track-origins=yes --leak-check=full"
2718 ;;
2719 msvc)
2720 # Check whether the current MSVC version needs the C99 converter.
2721 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2722 # support enough of C99 to build libav. Default to the new
2723 # behaviour if the regexp was unable to match anything, since this
2724 # successfully parses the version number of existing supported
2725 # versions that require the converter (MSVC 2010 and 2012).
2726 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2727 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2728 cc_default="cl"
2729 else
2730 cc_default="c99wrap cl"
2731 fi
2732 ld_default="$source_path/compat/windows/mslink"
2733 nm_default="dumpbin -symbols"
2734 ar_default="lib"
2735 case "$arch" in
2736 arm*)
2737 as_default="armasm"
2738 ;;
2739 esac
2740 target_os_default="win32"
2741 # Use a relative path for TMPDIR. This makes sure all the
2742 # ffconf temp files are written with a relative path, avoiding
2743 # issues with msys/win32 path conversion for MSVC parameters
2744 # such as -Fo<file> or -out:<file>.
2745 TMPDIR=.
2746 ;;
2747 icl)
2748 cc_default="icl"
2749 ld_default="xilink"
2750 nm_default="dumpbin -symbols"
2751 ar_default="xilib"
2752 target_os_default="win32"
2753 TMPDIR=.
2754 ;;
2755 gcov)
2756 add_cflags -fprofile-arcs -ftest-coverage
2757 add_ldflags -fprofile-arcs -ftest-coverage
2758 ;;
2759 hardened)
2760 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2761 add_cflags -fno-strict-overflow -fstack-protector-all
2762 add_ldflags -Wl,-z,relro -Wl,-z,now
2763 ;;
2764 ?*)
2765 die "Unknown toolchain $toolchain"
2766 ;;
2767 esac
2768
2769 test -n "$cross_prefix" && enable cross_compile
2770
2771 if enabled cross_compile; then
2772 test -n "$arch" && test -n "$target_os" ||
2773 die "Must specify target arch and OS when cross-compiling"
2774 fi
2775
2776 ar_default="${cross_prefix}${ar_default}"
2777 cc_default="${cross_prefix}${cc_default}"
2778 occ_default="${cross_prefix}${occ_default}"
2779 nm_default="${cross_prefix}${nm_default}"
2780 pkg_config_default="${cross_prefix}${pkg_config_default}"
2781 ranlib="${cross_prefix}${ranlib}"
2782 strip="${cross_prefix}${strip}"
2783
2784 sysinclude_default="${sysroot}/usr/include"
2785
2786 set_default arch cc pkg_config sysinclude target_exec target_os
2787 enabled cross_compile || host_cc_default=$cc
2788 set_default host_cc
2789
2790 if ! $pkg_config --version >/dev/null 2>&1; then
2791 warn "$pkg_config not found, library detection may fail."
2792 pkg_config=false
2793 fi
2794
2795 exesuf() {
2796 case $1 in
2797 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2798 esac
2799 }
2800
2801 EXESUF=$(exesuf $target_os)
2802 HOSTEXESUF=$(exesuf $host_os)
2803
2804 # set temporary file name
2805 : ${TMPDIR:=$TEMPDIR}
2806 : ${TMPDIR:=$TMP}
2807 : ${TMPDIR:=/tmp}
2808
2809 if ! check_cmd mktemp -u XXXXXX; then
2810 # simple replacement for missing mktemp
2811 # NOT SAFE FOR GENERAL USE
2812 mktemp(){
2813 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2814 }
2815 fi
2816
2817 tmpfile(){
2818 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2819 (set -C; exec > $tmp) 2>/dev/null ||
2820 die "Unable to create temporary file in $TMPDIR."
2821 append TMPFILES $tmp
2822 eval $1=$tmp
2823 }
2824
2825 trap 'rm -f -- $TMPFILES' EXIT
2826
2827 tmpfile TMPASM .asm
2828 tmpfile TMPC .c
2829 tmpfile TMPE $EXESUF
2830 tmpfile TMPH .h
2831 tmpfile TMPO .o
2832 tmpfile TMPS .S
2833 tmpfile TMPSH .sh
2834 tmpfile TMPV .ver
2835
2836 unset -f mktemp
2837
2838 chmod +x $TMPE
2839
2840 # make sure we can execute files in $TMPDIR
2841 cat > $TMPSH 2>> $logfile <<EOF
2842 #! /bin/sh
2843 EOF
2844 chmod +x $TMPSH >> $logfile 2>&1
2845 if ! $TMPSH >> $logfile 2>&1; then
2846 cat <<EOF
2847 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2848 variable to another directory and make sure that it is not mounted noexec.
2849 EOF
2850 die "Sanity test failed."
2851 fi
2852
2853 armasm_flags(){
2854 for flag; do
2855 case $flag in
2856 # Filter out MSVC cl.exe options from cflags that shouldn't
2857 # be passed to gas-preprocessor
2858 -M[TD]*) ;;
2859 *) echo $flag ;;
2860 esac
2861 done
2862 }
2863
2864 ccc_flags(){
2865 for flag; do
2866 case $flag in
2867 -std=c99) echo -c99 ;;
2868 -mcpu=*) echo -arch ${flag#*=} ;;
2869 -mieee) echo -ieee ;;
2870 -O*|-fast) echo $flag ;;
2871 -fno-math-errno) echo -assume nomath_errno ;;
2872 -g) echo -g3 ;;
2873 -Wall) echo -msg_enable level2 ;;
2874 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2875 -Wl,*) echo $flag ;;
2876 -f*|-W*) ;;
2877 *) echo $flag ;;
2878 esac
2879 done
2880 }
2881
2882 cparser_flags(){
2883 for flag; do
2884 case $flag in
2885 -Wno-switch) echo -Wno-switch-enum ;;
2886 -Wno-format-zero-length) ;;
2887 -Wdisabled-optimization) ;;
2888 -Wno-pointer-sign) echo -Wno-other ;;
2889 *) echo $flag ;;
2890 esac
2891 done
2892 }
2893
2894 msvc_common_flags(){
2895 for flag; do
2896 case $flag in
2897 # In addition to specifying certain flags under the compiler
2898 # specific filters, they must be specified here as well or else the
2899 # generic catch all at the bottom will print the original flag.
2900 -Wall) ;;
2901 -std=c99) ;;
2902 # Common flags
2903 -fomit-frame-pointer) ;;
2904 -g) echo -Z7 ;;
2905 -fno-math-errno) ;;
2906 -fno-common) ;;
2907 -fno-signed-zeros) ;;
2908 -fPIC) ;;
2909 -mthumb) ;;
2910 -march=*) ;;
2911 -lz) echo zlib.lib ;;
2912 -lavifil32) echo vfw32.lib ;;
2913 -lavicap32) echo vfw32.lib user32.lib ;;
2914 -l*) echo ${flag#-l}.lib ;;
2915 -L*) echo -libpath:${flag#-L} ;;
2916 *) echo $flag ;;
2917 esac
2918 done
2919 }
2920
2921 msvc_flags(){
2922 msvc_common_flags "$@"
2923 for flag; do
2924 case $flag in
2925 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2926 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2927 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2928 -wd4273 -wd4554 -wd4701 ;;
2929 esac
2930 done
2931 }
2932
2933 icl_flags(){
2934 msvc_common_flags "$@"
2935 for flag; do
2936 case $flag in
2937 # Despite what Intel's documentation says -Wall, which is supported
2938 # on Windows, does enable remarks so disable them here.
2939 -Wall) echo $flag -Qdiag-disable:remark ;;
2940 -std=c99) echo -Qstd=c99 ;;
2941 esac
2942 done
2943 }
2944
2945 pgi_flags(){
2946 for flag; do
2947 case $flag in
2948 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2949 -fomit-frame-pointer) echo -Mnoframe ;;
2950 -g) echo -gopt ;;
2951 *) echo $flag ;;
2952 esac
2953 done
2954 }
2955
2956 suncc_flags(){
2957 for flag; do
2958 case $flag in
2959 -march=*|-mcpu=*)
2960 case "${flag#*=}" in
2961 native) echo -xtarget=native ;;
2962 v9|niagara) echo -xarch=sparc ;;
2963 ultrasparc) echo -xarch=sparcvis ;;
2964 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2965 i586|pentium) echo -xchip=pentium ;;
2966 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2967 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2968 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2969 pentium4*) echo -xtarget=pentium4 ;;
2970 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2971 *-sse3) echo -xarch=sse3 ;;
2972 core2) echo -xarch=ssse3 -xchip=core2 ;;
2973 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2974 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2975 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2976 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2977 k8|opteron|athlon64|athlon-fx)
2978 echo -xarch=sse2a ;;
2979 athlon*) echo -xarch=pentium_proa ;;
2980 esac
2981 ;;
2982 -std=c99) echo -xc99 ;;
2983 -fomit-frame-pointer) echo -xregs=frameptr ;;
2984 -fPIC) echo -KPIC -xcode=pic32 ;;
2985 -W*,*) echo $flag ;;
2986 -f*-*|-W*|-mimpure-text) ;;
2987 -shared) echo -G ;;
2988 *) echo $flag ;;
2989 esac
2990 done
2991 }
2992
2993 tms470_flags(){
2994 for flag; do
2995 case $flag in
2996 -march=*|-mcpu=*)
2997 case "${flag#*=}" in
2998 armv7-a|cortex-a*) echo -mv=7a8 ;;
2999 armv7-r|cortex-r*) echo -mv=7r4 ;;
3000 armv7-m|cortex-m*) echo -mv=7m3 ;;
3001 armv6*|arm11*) echo -mv=6 ;;
3002 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3003 echo -mv=5e ;;
3004 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3005 esac
3006 ;;
3007 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3008 -mfpu=vfp) echo --float_support=vfpv2 ;;
3009 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3010 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3011 -msoft-float) echo --float_support=vfplib ;;
3012 -O[0-3]|-mf=*) echo $flag ;;
3013 -g) echo -g -mn ;;
3014 -pds=*) echo $flag ;;
3015 -D*|-I*) echo $flag ;;
3016 --gcc|--abi=*) echo $flag ;;
3017 -me) echo $flag ;;
3018 esac
3019 done
3020 }
3021
3022 probe_cc(){
3023 pfx=$1
3024 _cc=$2
3025
3026 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3027 unset _ld_o _ldflags _ld_lib _ld_path
3028 unset _depflags _DEPCMD _DEPFLAGS
3029 _flags_filter=echo
3030
3031 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3032 _type=llvm_gcc
3033 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3034 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3035 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3036 _cflags_speed='-O3'
3037 _cflags_size='-Os'
3038 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3039 _type=gcc
3040 gcc_version=$($_cc --version | head -n1)
3041 gcc_basever=$($_cc -dumpversion)
3042 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3043 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3044 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3045 if ! $_cc -dumpversion | grep -q '^2\.'; then
3046 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3047 fi
3048 _cflags_speed='-O3'
3049 _cflags_size='-Os'
3050 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3051 _type=icc
3052 _ident=$($_cc --version | head -n1)
3053 _depflags='-MMD'
3054 _cflags_speed='-O3'
3055 _cflags_size='-Os'
3056 _cflags_noopt='-O1'
3057 elif $_cc -v 2>&1 | grep -q xlc; then
3058 _type=xlc
3059 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3060 _cflags_speed='-O5'
3061 _cflags_size='-O5 -qcompact'
3062 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3063 _type=ccc
3064 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3065 _DEPFLAGS='-M'
3066 _cflags_speed='-fast'
3067 _cflags_size='-O1'
3068 _flags_filter=ccc_flags
3069 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3070 test -d "$sysroot" || die "No valid sysroot specified."
3071 _type=armcc
3072 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3073 armcc_conf="$PWD/armcc.conf"
3074 $_cc --arm_linux_configure \
3075 --arm_linux_config_file="$armcc_conf" \
3076 --configure_sysroot="$sysroot" \
3077 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3078 die "Error creating armcc configuration file."
3079 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3080 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3081 as_default="${cross_prefix}gcc"
3082 _depflags='-MMD'
3083 _cflags_speed='-O3'
3084 _cflags_size='-Os'
3085 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3086 _type=tms470
3087 _ident=$($_cc -version | head -n1 | tr -s ' ')
3088 _flags='--gcc --abi=eabi -me'
3089 _cc_e='-ppl -fe=$@'
3090 _cc_o='-fe=$@'
3091 _depflags='-ppa -ppd=$(@:.o=.d)'
3092 _cflags_speed='-O3 -mf=5'
3093 _cflags_size='-O3 -mf=2'
3094 _flags_filter=tms470_flags
3095 elif $_cc -v 2>&1 | grep -q clang; then
3096 _type=clang
3097 _ident=$($_cc --version 2>/dev/null | head -n1)
3098 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3099 _cflags_speed='-O3'
3100 _cflags_size='-Os'
3101 elif $_cc -V 2>&1 | grep -q Sun; then
3102 _type=suncc
3103 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3104 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3105 _DEPFLAGS='-xM1 -xc99'
3106 _ldflags='-std=c99'
3107 _cflags_speed='-O5'
3108 _cflags_size='-O5 -xspace'
3109 _flags_filter=suncc_flags
3110 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3111 _type=pathscale
3112 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3113 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3114 _cflags_speed='-O2'
3115 _cflags_size='-Os'
3116 _flags_filter='filter_out -Wdisabled-optimization'
3117 elif $_cc -v 2>&1 | grep -q Open64; then
3118 _type=open64
3119 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3120 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3121 _cflags_speed='-O2'
3122 _cflags_size='-Os'
3123 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3124 elif $_cc -V 2>&1 | grep -q Portland; then
3125 _type=pgi
3126 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3127 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3128 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3129 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3130 _cflags_noopt="-O1"
3131 _flags_filter=pgi_flags
3132 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3133 _type=armasm
3134 _ident=$($_cc | head -n1)
3135 # 4509: "This form of conditional instruction is deprecated"
3136 _flags="-nologo -ignore 4509"
3137 _flags_filter=armasm_flags
3138 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3139 _type=msvc
3140 _ident=$($_cc 2>&1 | head -n1)
3141 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3142 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3143 _cflags_speed="-O2"
3144 _cflags_size="-O1"
3145 if $_cc -nologo- 2>&1 | grep -q Linker; then
3146 _ld_o='-out:$@'
3147 else
3148 _ld_o='-Fe$@'
3149 fi
3150 _cc_o='-Fo$@'
3151 _cc_e='-P -Fi$@'
3152 _flags_filter=msvc_flags
3153 _ld_lib='lib%.a'
3154 _ld_path='-libpath:'
3155 _flags='-nologo'
3156 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3157 elif $_cc 2>&1 | grep -q Intel; then
3158 _type=icl
3159 _ident=$($_cc 2>&1 | head -n1)
3160 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3161 # Not only is O3 broken on 13.x+ but it is slower on all previous
3162 # versions (tested) as well.
3163 _cflags_speed="-O2"
3164 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3165 if $_cc 2>&1 | grep -q Linker; then
3166 _ld_o='-out:$@'
3167 else
3168 _ld_o='-Fe$@'
3169 fi
3170 _cc_o='-Fo$@'
3171 _cc_e='-P'
3172 _flags_filter=icl_flags
3173 _ld_lib='lib%.a'
3174 _ld_path='-libpath:'
3175 # -Qdiag-error to make icl error when seeing certain unknown arguments
3176 _flags='-nologo -Qdiag-error:4044,10157'
3177 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3178 # with MSVC which enables it by default.
3179 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3180 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3181 _type=cparser
3182 _ident=$($_cc --version | head -n1)
3183 _depflags='-MMD'
3184 _cflags_speed='-O4'
3185 _cflags_size='-O2'
3186 _flags_filter=cparser_flags
3187 fi
3188
3189 eval ${pfx}_type=\$_type
3190 eval ${pfx}_ident=\$_ident
3191 }
3192
3193 set_ccvars(){
3194 eval ${1}_C=\${_cc_c-\${${1}_C}}
3195 eval ${1}_E=\${_cc_e-\${${1}_E}}
3196 eval ${1}_O=\${_cc_o-\${${1}_O}}
3197
3198 if [ -n "$_depflags" ]; then
3199 eval ${1}_DEPFLAGS=\$_depflags
3200 else
3201 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3202 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3203 eval DEP${1}FLAGS=\$_flags
3204 fi
3205 }
3206
3207 probe_cc cc "$cc"
3208 cflags_filter=$_flags_filter
3209 cflags_speed=$_cflags_speed
3210 cflags_size=$_cflags_size
3211 cflags_noopt=$_cflags_noopt
3212 add_cflags $_flags $_cflags
3213 cc_ldflags=$_ldflags
3214 set_ccvars CC
3215
3216 probe_cc hostcc "$host_cc"
3217 host_cflags_filter=$_flags_filter
3218 add_host_cflags $_flags $_cflags
3219 set_ccvars HOSTCC
3220
3221 test -n "$cc_type" && enable $cc_type ||
3222 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3223
3224 : ${as_default:=$cc}
3225 : ${objcc_default:=$cc}
3226 : ${dep_cc_default:=$cc}
3227 : ${ld_default:=$cc}
3228 : ${host_ld_default:=$host_cc}
3229 set_default ar as objcc dep_cc ld host_ld
3230
3231 probe_cc as "$as"
3232 asflags_filter=$_flags_filter
3233 add_asflags $_flags $_cflags
3234 set_ccvars AS
3235
3236 probe_cc objcc "$objcc"
3237 objcflags_filter=$_flags_filter
3238 add_objcflags $_flags $_cflags
3239 set_ccvars OBJC
3240
3241 probe_cc ld "$ld"
3242 ldflags_filter=$_flags_filter
3243 add_ldflags $_flags $_ldflags
3244 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3245 LD_O=${_ld_o-$LD_O}
3246 LD_LIB=${_ld_lib-$LD_LIB}
3247 LD_PATH=${_ld_path-$LD_PATH}
3248
3249 probe_cc hostld "$host_ld"
3250 host_ldflags_filter=$_flags_filter
3251 add_host_ldflags $_flags $_ldflags
3252 HOSTLD_O=${_ld_o-$HOSTLD_O}
3253
3254 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3255 probe_cc depcc "$dep_cc"
3256 CCDEP=${_DEPCMD:-$DEPCMD}
3257 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3258 DEPCCFLAGS=$_flags
3259 fi
3260
3261 if $ar 2>&1 | grep -q Microsoft; then
3262 arflags="-nologo"
3263 ar_o='-out:$@'
3264 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3265 arflags="rq"
3266 ar_o='$@'
3267 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3268 arflags='-Xany -r -c'
3269 ar_o='$@'
3270 else
3271 arflags="rc"
3272 ar_o='$@'
3273 fi
3274
3275 add_cflags $extra_cflags
3276 add_objcflags $extra_objcflags
3277 add_asflags $extra_cflags
3278
3279 if test -n "$sysroot"; then
3280 case "$cc_type" in
3281 gcc|llvm_gcc|clang)
3282 add_cppflags --sysroot="$sysroot"
3283 add_ldflags --sysroot="$sysroot"
3284 ;;
3285 tms470)
3286 add_cppflags -I"$sysinclude"
3287 add_ldflags --sysroot="$sysroot"
3288 ;;
3289 esac
3290 fi
3291
3292 if test "$cpu" = host; then
3293 enabled cross_compile &&
3294 die "--cpu=host makes no sense when cross-compiling."
3295
3296 case "$cc_type" in
3297 gcc|llvm_gcc)
3298 check_native(){
3299 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3300 sed -n "/cc1.*$1=/{
3301 s/.*$1=\\([^ ]*\\).*/\\1/
3302 p
3303 q
3304 }" $TMPE
3305 }
3306 cpu=$(check_native -march || check_native -mcpu)
3307 ;;
3308 esac
3309
3310 test "${cpu:-host}" = host &&
3311 die "--cpu=host not supported with compiler $cc"
3312 fi
3313
3314 # Deal with common $arch aliases
3315 case "$arch" in
3316 aarch64|arm64)
3317 arch="aarch64"
3318 ;;
3319 arm*)
3320 arch="arm"
3321 ;;
3322 mips*|IP*)
3323 arch="mips"
3324 ;;
3325 parisc*|hppa*)
3326 arch="parisc"
3327 ;;
3328 "Power Macintosh"|ppc*|powerpc*)
3329 arch="ppc"
3330 ;;
3331 s390|s390x)
3332 arch="s390"
3333 ;;
3334 sh4|sh)
3335 arch="sh4"
3336 ;;
3337 sun4u|sparc*)
3338 arch="sparc"
3339 ;;
3340 tilegx|tile-gx)
3341 arch="tilegx"
3342 ;;
3343 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3344 arch="x86"
3345 ;;
3346 esac
3347
3348 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3349 enable $arch
3350
3351 # Add processor-specific flags
3352 if enabled aarch64; then
3353
3354 case $cpu in
3355 armv*)
3356 cpuflags="-march=$cpu"
3357 ;;
3358 *)
3359 cpuflags="-mcpu=$cpu"
3360 ;;
3361 esac
3362
3363 elif enabled alpha; then
3364
3365 cpuflags="-mcpu=$cpu"
3366
3367 elif enabled arm; then
3368
3369 check_arm_arch() {
3370 check_cpp_condition stddef.h \
3371 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3372 $cpuflags
3373 }
3374
3375 probe_arm_arch() {
3376 if check_arm_arch 4; then echo armv4;
3377 elif check_arm_arch 4T; then echo armv4t;
3378 elif check_arm_arch 5; then echo armv5;
3379 elif check_arm_arch 5E; then echo armv5e;
3380 elif check_arm_arch 5T; then echo armv5t;
3381 elif check_arm_arch 5TE; then echo armv5te;
3382 elif check_arm_arch 5TEJ; then echo armv5te;
3383 elif check_arm_arch 6; then echo armv6;
3384 elif check_arm_arch 6J; then echo armv6j;
3385 elif check_arm_arch 6K; then echo armv6k;
3386 elif check_arm_arch 6Z; then echo armv6z;
3387 elif check_arm_arch 6ZK; then echo armv6zk;
3388 elif check_arm_arch 6T2; then echo armv6t2;
3389 elif check_arm_arch 7; then echo armv7;
3390 elif check_arm_arch 7A 7_A; then echo armv7-a;
3391 elif check_arm_arch 7S; then echo armv7-a;
3392 elif check_arm_arch 7R 7_R; then echo armv7-r;
3393 elif check_arm_arch 7M 7_M; then echo armv7-m;
3394 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3395 elif check_arm_arch 8A 8_A; then echo armv8-a;
3396 fi
3397 }
3398
3399 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3400
3401 case $cpu in
3402 armv*)
3403 cpuflags="-march=$cpu"
3404 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3405 ;;
3406 *)
3407 cpuflags="-mcpu=$cpu"
3408 case $cpu in
3409 cortex-a*) subarch=armv7a ;;
3410 cortex-r*) subarch=armv7r ;;
3411 cortex-m*) enable thumb; subarch=armv7m ;;
3412 arm11*) subarch=armv6 ;;
3413 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3414 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3415 *) subarch=$(probe_arm_arch) ;;
3416 esac
3417 ;;
3418 esac
3419
3420 case "$subarch" in
3421 armv5t*) enable fast_clz ;;
3422 armv[6-8]*) enable fast_clz fast_unaligned ;;
3423 esac
3424
3425 elif enabled avr32; then
3426
3427 case $cpu in
3428 ap7[02]0[0-2])
3429 subarch="avr32_ap"
3430 cpuflags="-mpart=$cpu"
3431 ;;
3432 ap)
3433 subarch="avr32_ap"
3434 cpuflags="-march=$cpu"
3435 ;;
3436 uc3[ab]*)
3437 subarch="avr32_uc"
3438 cpuflags="-mcpu=$cpu"
3439 ;;
3440 uc)
3441 subarch="avr32_uc"
3442 cpuflags="-march=$cpu"
3443 ;;
3444 esac
3445
3446 elif enabled bfin; then
3447
3448 cpuflags="-mcpu=$cpu"
3449
3450 elif enabled mips; then
3451
3452 cpuflags="-march=$cpu"
3453
3454 elif enabled ppc; then
3455
3456 disable ldbrx
3457
3458 case $(tolower $cpu) in
3459 601|ppc601|powerpc601)
3460 cpuflags="-mcpu=601"
3461 disable altivec
3462 ;;
3463 603*|ppc603*|powerpc603*)
3464 cpuflags="-mcpu=603"
3465 disable altivec
3466 ;;
3467 604*|ppc604*|powerpc604*)
3468 cpuflags="-mcpu=604"
3469 disable altivec
3470 ;;
3471 g3|75*|ppc75*|powerpc75*)
3472 cpuflags="-mcpu=750"
3473 disable altivec
3474 ;;
3475 g4|745*|ppc745*|powerpc745*)
3476 cpuflags="-mcpu=7450"
3477 disable vsx
3478 ;;
3479 74*|ppc74*|powerpc74*)
3480 cpuflags="-mcpu=7400"
3481 disable vsx
3482 ;;
3483 g5|970|ppc970|powerpc970)
3484 cpuflags="-mcpu=970"
3485 disable vsx
3486 ;;
3487 power[3-6]*)
3488 cpuflags="-mcpu=$cpu"
3489 disable vsx
3490 ;;
3491 power[7-8]*)
3492 cpuflags="-mcpu=$cpu"
3493 enable ldbrx
3494 ;;
3495 cell)
3496 cpuflags="-mcpu=cell"
3497 enable ldbrx
3498 disable vsx
3499 ;;
3500 e500mc)
3501 cpuflags="-mcpu=e500mc"
3502 disable altivec
3503 ;;
3504 e500v2)
3505 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3506 disable altivec
3507 disable dcbzl
3508 ;;
3509 e500)
3510 cpuflags="-mcpu=8540 -mhard-float"
3511 disable altivec
3512 disable dcbzl
3513 ;;
3514 esac
3515
3516 elif enabled sparc; then
3517
3518 case $cpu in
3519 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3520 cpuflags="-mcpu=$cpu"
3521 ;;
3522 ultrasparc*|niagara[234])
3523 cpuflags="-mcpu=$cpu"
3524 ;;
3525 esac
3526
3527 elif enabled x86; then
3528
3529 case $cpu in
3530 i[345]86|pentium)
3531 cpuflags="-march=$cpu"
3532 disable i686
3533 disable mmx
3534 ;;
3535 # targets that do NOT support nopl and conditional mov (cmov)
3536 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3537 cpuflags="-march=$cpu"
3538 disable i686
3539 ;;
3540 # targets that do support nopl and conditional mov (cmov)
3541 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3542 cpuflags="-march=$cpu"
3543 enable i686
3544 enable fast_cmov
3545 ;;
3546 # targets that do support conditional mov but on which it's slow
3547 pentium4|pentium4m|prescott|nocona)
3548 cpuflags="-march=$cpu"
3549 enable i686
3550 disable fast_cmov
3551 ;;
3552 esac
3553
3554 fi
3555
3556 if [ "$cpu" != generic ]; then
3557 add_cflags $cpuflags
3558 add_asflags $cpuflags
3559 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3560 fi
3561
3562 # compiler sanity check
3563 check_exec <<EOF
3564 int main(void){ return 0; }
3565 EOF
3566 if test "$?" != 0; then
3567 echo "$cc is unable to create an executable file."
3568 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3569 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3570 echo "Only do this if you know what cross compiling means."
3571 fi
3572 die "C compiler test failed."
3573 fi
3574
3575 add_cppflags -D_ISOC99_SOURCE
3576 check_cflags -std=c99
3577 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3578 #include <stdlib.h>
3579 EOF
3580 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3581 #include <stdlib.h>
3582 EOF
3583
3584 add_host_cppflags -D_ISOC99_SOURCE
3585 check_host_cflags -std=c99
3586 check_host_cflags -Wall
3587 check_host_cflags -O3
3588
3589 check_64bit(){
3590 arch32=$1
3591 arch64=$2
3592 expr=$3
3593 check_code cc "" "int test[2*($expr) - 1]" &&
3594 subarch=$arch64 || subarch=$arch32
3595 }
3596
3597 case "$arch" in
3598 aarch64|alpha|ia64)
3599 spic=$shared
3600 ;;
3601 mips)
3602 check_64bit mips mips64 '_MIPS_SIM > 1'
3603 spic=$shared
3604 ;;
3605 parisc)
3606 check_64bit parisc parisc64 'sizeof(void *) > 4'
3607 spic=$shared
3608 ;;
3609 ppc)
3610 check_64bit ppc ppc64 'sizeof(void *) > 4'
3611 spic=$shared
3612 ;;
3613 s390)
3614 check_64bit s390 s390x 'sizeof(void *) > 4'
3615 spic=$shared
3616 ;;
3617 sparc)
3618 check_64bit sparc sparc64 'sizeof(void *) > 4'
3619 spic=$shared
3620 ;;
3621 x86)
3622 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3623 if test "$subarch" = "x86_64"; then
3624 spic=$shared
3625 fi
3626 ;;
3627 esac
3628
3629 enable $subarch
3630 enabled spic && enable_weak pic
3631
3632 # OS specific
3633 case $target_os in
3634 aix)
3635 SHFLAGS=-shared
3636 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3637 enabled shared && add_ldflags -Wl,-brtl
3638 ;;
3639 android)
3640 disable symver
3641 enable section_data_rel_ro
3642 SLIB_INSTALL_NAME='$(SLIBNAME)'
3643 SLIB_INSTALL_LINKS=
3644 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3645 ;;
3646 haiku)
3647 prefix_default="/boot/common"
3648 network_extralibs="-lnetwork"
3649 host_libs=
3650 ;;
3651 sunos)
3652 SHFLAGS='-shared -Wl,-h,$$(@F)'
3653 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3654 network_extralibs="-lsocket -lnsl"
3655 # When using suncc to build, the Solaris linker will mark
3656 # an executable with each instruction set encountered by
3657 # the Solaris assembler. As our libraries contain their own
3658 # guards for processor-specific code, instead suppress
3659 # generation of the HWCAPS ELF section on Solaris x86 only.
3660 enabled_all suncc x86 &&
3661 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3662 add_ldflags -Wl,-M,mapfile
3663 nm_default='nm -P -g'
3664 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3665 ;;
3666 netbsd)
3667 disable symver
3668 oss_indev_extralibs="-lossaudio"
3669 oss_outdev_extralibs="-lossaudio"
3670 ;;
3671 openbsd|bitrig)
3672 disable symver
3673 SHFLAGS='-shared'
3674 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3675 SLIB_INSTALL_LINKS=
3676 oss_indev_extralibs="-lossaudio"
3677 oss_outdev_extralibs="-lossaudio"
3678 ;;
3679 dragonfly)
3680 disable symver
3681 ;;
3682 freebsd)
3683 ;;
3684 bsd/os)
3685 add_extralibs -lpoll -lgnugetopt
3686 ;;
3687 darwin)
3688 enabled ppc && add_asflags -force_cpusubtype_ALL
3689 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3690 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3691 add_ldflags -Wl,-dynamic,-search_paths_first
3692 SLIBSUF=".dylib"
3693 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3694 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3695 objformat="macho"
3696 enabled x86_64 && objformat="macho64"
3697 enabled_any pic shared ||
3698 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3699 ;;
3700 msys*)
3701 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3702 ;;
3703 mingw32*)
3704 if test $target_os = "mingw32ce"; then
3705 disable network
3706 else
3707 target_os=mingw32
3708 fi
3709 LIBTARGET=i386
3710 if enabled x86_64; then
3711 LIBTARGET="i386:x86-64"
3712 elif enabled arm; then
3713 LIBTARGET=arm-wince
3714 fi
3715 check_ldflags -Wl,--nxcompat
3716 check_ldflags -Wl,--dynamicbase
3717 shlibdir_default="$bindir_default"
3718 SLIBPREF=""
3719 SLIBSUF=".dll"
3720 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3721 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3722 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3723 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3724 SLIB_INSTALL_LINKS=
3725 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3726 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3727 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3728 objformat="win32"
3729 dlltool="${cross_prefix}dlltool"
3730 ranlib=:
3731 enable dos_paths
3732 ;;
3733 win32|win64)
3734 disable symver
3735 if enabled shared; then
3736 # Link to the import library instead of the normal static library
3737 # for shared libs.
3738 LD_LIB='%.lib'
3739 # Cannot build both shared and static libs with MSVC or icl.
3740 disable static
3741 fi
3742 shlibdir_default="$bindir_default"
3743 SLIBPREF=""
3744 SLIBSUF=".dll"
3745 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3746 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3747 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3748 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3749 SLIB_INSTALL_LINKS=
3750 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3751 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3752 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3753 objformat="win32"
3754 ranlib=:
3755 enable dos_paths
3756 ;;
3757 cygwin*)
3758 target_os=cygwin
3759 shlibdir_default="$bindir_default"
3760 SLIBPREF="cyg"
3761 SLIBSUF=".dll"
3762 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3763 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3764 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3765 SLIB_INSTALL_LINKS=
3766 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3767 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3768 objformat="win32"
3769 enable dos_paths
3770 ;;
3771 *-dos|freedos|opendos)
3772 network_extralibs="-lsocket"
3773 objformat="coff"
3774 enable dos_paths
3775 add_cppflags -U__STRICT_ANSI__
3776 ;;
3777 linux)
3778 enable dv1394
3779 enable section_data_rel_ro
3780 ;;
3781 irix*)
3782 target_os=irix
3783 ranlib="echo ignoring ranlib"
3784 ;;
3785 os/2*)
3786 ln_s="cp -f"
3787 objformat="aout"
3788 add_cppflags -D_GNU_SOURCE
3789 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3790 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3791 LIBSUF="_s.a"
3792 SLIBPREF=""
3793 SLIBSUF=".dll"
3794 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3795 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3796 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3797 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3798 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3799 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3800 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3801 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3802 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3803 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3804 enable dos_paths
3805 ;;
3806 gnu/kfreebsd)
3807 add_cppflags -D_BSD_SOURCE
3808 ;;
3809 gnu)
3810 ;;
3811 qnx)
3812 add_cppflags -D_QNX_SOURCE
3813 network_extralibs="-lsocket"
3814 ;;
3815 symbian)
3816 SLIBSUF=".dll"
3817 enable dos_paths
3818 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3819 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3820 add_ldflags -Wl,--target1-abs,--no-undefined \
3821 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3822 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3823 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3824 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3825 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3826 ;;
3827 osf1)
3828 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3829 ;;
3830 minix)
3831 ;;
3832 plan9)
3833 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3834 -D_REENTRANT_SOURCE \
3835 -D_RESEARCH_SOURCE \
3836 -DFD_SETSIZE=96 \
3837 -DHAVE_SOCK_OPTS
3838 add_compat strtod.o strtod=avpriv_strtod
3839 network_extralibs='-lbsd'
3840 exeobjs=compat/plan9/main.o
3841 cp_f='cp'
3842 ;;
3843 none)
3844 ;;
3845 *)
3846 die "Unknown OS '$target_os'."
3847 ;;
3848 esac
3849
3850 # determine libc flavour
3851
3852 probe_libc(){
3853 pfx=$1
3854 pfx_no_=${pfx%_}
3855 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3856 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3857 eval ${pfx}libc_type=uclibc
3858 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3859 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3860 eval ${pfx}libc_type=glibc
3861 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3862 # MinGW headers can be installed on Cygwin, so check for newlib first.
3863 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3864 eval ${pfx}libc_type=newlib
3865 add_${pfx}cppflags -U__STRICT_ANSI__
3866 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3867 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3868 eval ${pfx}libc_type=mingw64
3869 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3870 eval test \$${pfx_no_}cc_type = "gcc" &&
3871 add_${pfx}cppflags -D__printf__=__gnu_printf__
3872 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3873 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3874 eval ${pfx}libc_type=mingw32
3875 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3876 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3877 die "ERROR: MinGW32 runtime version must be >= 3.15."
3878 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3879 eval test \$${pfx_no_}cc_type = "gcc" &&
3880 add_${pfx}cppflags -D__printf__=__gnu_printf__
3881 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3882 eval ${pfx}libc_type=msvcrt
3883 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3884 if [ "$pfx" = host_ ]; then
3885 add_host_cppflags -Dsnprintf=_snprintf
3886 else
3887 add_compat strtod.o strtod=avpriv_strtod
3888 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3889 _snprintf=avpriv_snprintf \
3890 vsnprintf=avpriv_vsnprintf
3891 fi
3892 fi
3893 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3894 # 0x601 by default unless something else is set by the user.
3895 # This can easily lead to us detecting functions only present
3896 # in such new versions and producing binaries requiring windows 7.0.
3897 # Therefore explicitly set the default to XP unless the user has
3898 # set something else on the command line.
3899 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3900 # family. For these cases, configure is free to use any functions
3901 # found in the SDK headers by default. (Alternatively, we could force
3902 # _WIN32_WINNT to 0x0602 in that case.)
3903 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3904 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3905 #ifdef WINAPI_FAMILY
3906 #include <winapifamily.h>
3907 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3908 #error not desktop
3909 #endif
3910 #endif
3911 EOF
3912 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3913 eval ${pfx}libc_type=klibc
3914 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3915 eval ${pfx}libc_type=bionic
3916 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3917 eval ${pfx}libc_type=solaris
3918 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3919 else
3920 eval ${pfx}libc_type=default
3921 add_${pfx}cppflags -D_DEFAULT_SOURCE
3922 fi
3923 }
3924
3925 probe_libc
3926 test -n "$libc_type" && enable libc_$libc_type
3927 probe_libc host_
3928 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3929
3930 case $libc_type in
3931 bionic)
3932 add_compat strtod.o strtod=avpriv_strtod
3933 ;;
3934 esac
3935
3936 # hacks for compiler/libc/os combinations
3937
3938 if enabled_all tms470 libc_glibc; then
3939 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3940 add_cppflags -D__USER_LABEL_PREFIX__=
3941 add_cppflags -D__builtin_memset=memset
3942 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3943 add_cflags -pds=48 # incompatible redefinition of macro
3944 fi
3945
3946 if enabled_all ccc libc_glibc; then
3947 add_ldflags -Wl,-z,now # calls to libots crash without this
3948 fi
3949
3950 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3951 add_cppflags '-I\$(SRC_PATH)/compat/float'
3952
3953 esc(){
3954 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3955 }
3956
3957 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3958
3959 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3960
3961 set_default $PATHS_LIST
3962 set_default nm
3963
3964 # we need to build at least one lib type
3965 if ! enabled_any static shared; then
3966 cat <<EOF
3967 At least one library type must be built.
3968 Specify --enable-static to build the static libraries or --enable-shared to
3969 build the shared libraries as well. To only build the shared libraries specify
3970 --disable-static in addition to --enable-shared.
3971 EOF
3972 exit 1;
3973 fi
3974
3975 die_license_disabled() {
3976 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3977 }
3978
3979 die_license_disabled gpl libcdio
3980 die_license_disabled gpl libx264
3981 die_license_disabled gpl libx265
3982 die_license_disabled gpl libxavs
3983 die_license_disabled gpl libxvid
3984 die_license_disabled gpl x11grab
3985
3986 die_license_disabled nonfree libfaac
3987 die_license_disabled nonfree libfdk_aac
3988 die_license_disabled nonfree nvenc
3989 die_license_disabled nonfree openssl
3990
3991 die_license_disabled version3 libopencore_amrnb
3992 die_license_disabled version3 libopencore_amrwb
3993 die_license_disabled version3 libvo_aacenc
3994 die_license_disabled version3 libvo_amrwbenc
3995
3996 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3997
3998 disabled optimizations || check_cflags -fomit-frame-pointer
3999
4000 enable_weak_pic() {
4001 disabled pic && return
4002 enable pic
4003 add_cppflags -DPIC
4004 case "$target_os" in
4005 mingw*|cygwin*)
4006 ;;
4007 *)
4008 add_cflags -fPIC
4009 ;;
4010 esac
4011 add_asflags -fPIC
4012 }
4013
4014 enabled pic && enable_weak_pic
4015
4016 check_cc <<EOF || die "Symbol mangling check failed."
4017 int ff_extern;
4018 EOF
4019 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4020 extern_prefix=${sym%%ff_extern*}
4021
4022 check_cc <<EOF && enable_weak inline_asm
4023 void foo(void) { __asm__ volatile ("" ::); }
4024 EOF
4025
4026 _restrict=
4027 for restrict_keyword in restrict __restrict__ __restrict; do
4028 check_cc <<EOF && _restrict=$restrict_keyword && break
4029 void foo(char * $restrict_keyword p);
4030 EOF
4031 done
4032
4033 check_cc <<EOF && enable pragma_deprecated
4034 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4035 EOF
4036
4037 check_cc <<EOF && enable attribute_packed
4038 struct { int x; } __attribute__((packed)) x;
4039 EOF
4040
4041 check_cc <<EOF && enable attribute_may_alias
4042 union { int x; } __attribute__((may_alias)) x;
4043 EOF
4044
4045 check_cc <<EOF || die "endian test failed"
4046 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4047 EOF
4048 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4049
4050 check_gas() {
4051 log "check_gas using '$as' as AS"
4052 # :vararg is used on aarch64, arm and ppc altivec
4053 check_as <<EOF || return 1
4054 .macro m n, y:vararg=0
4055 \n: .int \y
4056 .endm
4057 m x
4058 EOF
4059 # .altmacro is only used in arm asm
4060 ! enabled arm || check_as <<EOF || return 1
4061 .altmacro
4062 EOF
4063 enable gnu_as
4064 return 0
4065 }
4066
4067 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4068 nogas=:
4069 enabled_any arm aarch64 && nogas=die
4070 enabled_all ppc altivec && nogas=warn
4071 as_noop=-v
4072
4073 case $as_type in
4074 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4075 gcc) gaspp_as_type=gas ;;
4076 *) gaspp_as_type=$as_type ;;
4077 esac
4078
4079 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4080
4081 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4082 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4083
4084 if ! check_gas ; then
4085 as=${gas:=$as}
4086 check_gas || \
4087 $nogas "GNU assembler not found, install/update gas-preprocessor"
4088 fi
4089
4090 check_as <<EOF && enable as_func
4091 .func test
4092 .endfunc
4093 EOF
4094 fi
4095
4096 check_inline_asm inline_asm_labels '"1:\n"'
4097
4098 if enabled aarch64; then
4099 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4100 # internal assembler in clang 3.3 does not support this instruction
4101 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4102 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4103
4104 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4105
4106 elif enabled alpha; then
4107
4108 check_cflags -mieee
4109
4110 elif enabled arm; then
4111
4112 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4113 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4114 enabled thumb && check_cflags -mthumb || check_cflags -marm
4115
4116 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4117 enable vfp_args
4118 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4119 enable vfp_args
4120 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4121 case "${cross_prefix:-$cc}" in
4122 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4123 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4124 __asm__ (".eabi_attribute 28, 1");
4125 int main(void) { return 0; }
4126 EOF
4127 esac
4128 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4129 fi
4130
4131 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4132 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4133 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4134 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4135 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4136 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4137
4138 [ $target_os = linux ] || [ $target_os = android ] ||
4139 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4140 $ARCH_EXT_LIST_ARM
4141
4142 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4143
4144 check_as <<EOF && enable as_dn_directive
4145 ra .dn d0.i16
4146 .unreq ra
4147 EOF
4148
4149 # llvm's integrated assembler supports .object_arch from llvm 3.5
4150 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4151 .object_arch armv4
4152 EOF
4153
4154 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4155
4156 elif enabled mips; then
4157
4158 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4159
4160 # make sure that only an instruction set is enabled
4161 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4162
4163 if enabled mips64; then
4164 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4165 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4166 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4167 else
4168 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4169 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4170 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4171 fi
4172
4173 elif enabled parisc; then
4174
4175 if enabled gcc; then
4176 case $($cc -dumpversion) in
4177 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4178 esac
4179 fi
4180
4181 elif enabled ppc; then
4182
4183 enable local_aligned_8 local_aligned_16
4184
4185 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4186 check_inline_asm ibm_asm '"add 0, 0, 0"'
4187 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4188 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4189
4190 # AltiVec flags: The FSF version of GCC differs from the Apple version
4191 if enabled altivec; then
4192 check_cflags -maltivec -mabi=altivec &&
4193 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4194 check_cflags -faltivec
4195
4196 # check if our compiler supports Motorola AltiVec C API
4197 check_cc <<EOF || disable altivec
4198 $inc_altivec_h
4199 int main(void) {
4200 vector signed int v1 = (vector signed int) { 0 };
4201 vector signed int v2 = (vector signed int) { 1 };
4202 v1 = vec_add(v1, v2);
4203 return 0;
4204 }
4205 EOF
4206
4207 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4208 fi
4209
4210 if enabled vsx; then
4211 check_cflags -mvsx &&
4212 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4213 fi
4214
4215 if enabled power8; then
4216 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4217 fi
4218
4219 elif enabled x86; then
4220
4221 check_builtin rdtsc intrin.h "__rdtsc()"
4222 check_builtin mm_empty mmintrin.h "_mm_empty()"
4223
4224 enable local_aligned_8 local_aligned_16
4225
4226 # check whether EBP is available on x86
4227 # As 'i' is stored on the stack, this program will crash
4228 # if the base pointer is used to access it because the
4229 # base pointer is cleared in the inline assembly code.
4230 check_exec_crash <<EOF && enable ebp_available
4231 volatile int i=0;
4232 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4233 return i;
4234 EOF
4235
4236 # check whether EBX is available on x86
4237 check_inline_asm ebx_available '""::"b"(0)' &&
4238 check_inline_asm ebx_available '"":::"%ebx"'
4239
4240 # check whether xmm clobbers are supported
4241 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4242
4243 # check whether binutils is new enough to compile SSSE3/MMXEXT
4244 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4245 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4246
4247 if ! disabled_any asm mmx yasm; then
4248 if check_cmd $yasmexe --version; then
4249 enabled x86_64 && yasm_extra="-m amd64"
4250 yasm_debug="-g dwarf2"
4251 elif check_cmd nasm -v; then
4252 yasmexe=nasm
4253 yasm_debug="-g -F dwarf"
4254 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4255 fi
4256
4257 YASMFLAGS="-f $objformat $yasm_extra"
4258 enabled pic && append YASMFLAGS "-DPIC"
4259 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4260 case "$objformat" in
4261 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4262 esac
4263
4264 check_yasm "movbe ecx, [5]" && enable yasm ||
4265 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4266 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4267 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4268 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4269 check_yasm "CPU amdnop" || disable cpunop
4270 fi
4271
4272 case "$cpu" in
4273 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4274 disable fast_clz
4275 ;;
4276 esac
4277
4278 fi
4279
4280 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4281
4282 check_ldflags -Wl,--as-needed
4283
4284 if check_func dlopen; then
4285 ldl=
4286 elif check_func dlopen -ldl; then
4287 ldl=-ldl
4288 fi
4289
4290 if ! disabled network; then
4291 check_func getaddrinfo $network_extralibs
4292 check_func inet_aton $network_extralibs
4293
4294 check_type netdb.h "struct addrinfo"
4295 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4296 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4297 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4298 check_type poll.h "struct pollfd"
4299 check_type netinet/sctp.h "struct sctp_event_subscribe"
4300 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4301 check_type netinet/in.h "struct sockaddr_in6"
4302 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4303 check_type "sys/types.h sys/socket.h" socklen_t
4304
4305 # Prefer arpa/inet.h over winsock2
4306 if check_header arpa/inet.h ; then
4307 check_func closesocket
4308 elif check_header winsock2.h ; then
4309 check_func_headers winsock2.h closesocket -lws2 &&
4310 network_extralibs="-lws2" ||
4311 { check_func_headers winsock2.h closesocket -lws2_32 &&
4312 network_extralibs="-lws2_32"; } || disable winsock2_h network
4313 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4314
4315 check_type ws2tcpip.h socklen_t
4316 check_type ws2tcpip.h "struct addrinfo"
4317 check_type ws2tcpip.h "struct group_source_req"
4318 check_type ws2tcpip.h "struct ip_mreq_source"
4319 check_type ws2tcpip.h "struct ipv6_mreq"
4320 check_type winsock2.h "struct pollfd"
4321 check_struct winsock2.h "struct sockaddr" sa_len
4322 check_type ws2tcpip.h "struct sockaddr_in6"
4323 check_type ws2tcpip.h "struct sockaddr_storage"
4324 else
4325 disable network
4326 fi
4327 fi
4328
4329 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4330 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4331 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4332 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4333
4334 case "$custom_allocator" in
4335 jemalloc)
4336 # jemalloc by default does not use a prefix
4337 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4338 ;;
4339 tcmalloc)
4340 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4341 malloc_prefix=tc_
4342 ;;
4343 esac
4344
4345 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4346 check_func ${malloc_prefix}memalign && enable memalign
4347 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4348
4349 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4350 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4351
4352 check_func fcntl
4353 check_func fork
4354 check_func gethrtime
4355 check_func getopt
4356 check_func getrusage
4357 check_func gettimeofday
4358 check_func gmtime_r
4359 check_func isatty
4360 check_func localtime_r
4361 check_func mach_absolute_time
4362 check_func mkstemp
4363 check_func mmap
4364 check_func mprotect
4365 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4366 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4367 check_func sched_getaffinity
4368 check_func setrlimit
4369 check_func strerror_r
4370 check_func sysconf
4371 check_func sysctl
4372 check_func usleep
4373
4374 check_func_headers io.h setmode
4375 check_func_headers stdlib.h getenv
4376
4377 check_func_headers windows.h CoTaskMemFree -lole32
4378 check_func_headers windows.h GetProcessAffinityMask
4379 check_func_headers windows.h GetProcessTimes
4380 check_func_headers windows.h GetSystemTimeAsFileTime
4381 check_func_headers windows.h LoadLibrary
4382 check_func_headers windows.h MapViewOfFile
4383 check_func_headers windows.h SetConsoleTextAttribute
4384 check_func_headers windows.h Sleep
4385 check_func_headers windows.h VirtualAlloc
4386 check_struct windows.h "CONDITION_VARIABLE" Ptr
4387
4388 check_header direct.h
4389 check_header dlfcn.h
4390 check_header d3d11.h
4391 check_header dxva.h
4392 check_header dxva2api.h
4393 check_header io.h
4394 check_header mach/mach_time.h
4395 check_header malloc.h
4396 check_header poll.h
4397 check_header sys/mman.h
4398 check_header sys/param.h
4399 check_header sys/resource.h
4400 check_header sys/select.h
4401 check_header sys/time.h
4402 check_header sys/un.h
4403 check_header unistd.h
4404 check_header valgrind/valgrind.h
4405 check_header vdpau/vdpau.h
4406 check_header vdpau/vdpau_x11.h
4407 check_header VideoDecodeAcceleration/VDADecoder.h
4408 check_header windows.h