930a081fc32c25329d6e65bae118138cdd824880
[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-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 and libraw1394 [no]
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
199 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
200 --enable-libopencv enable video filtering via libopencv [no]
201 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
202 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
203 --enable-libopus enable Opus de/encoding via libopus [no]
204 --enable-libpulse enable Pulseaudio input via libpulse [no]
205 --enable-librtmp enable RTMP[E] support via librtmp [no]
206 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
207 --enable-libsnappy enable Snappy compression [no]
208 --enable-libspeex enable Speex de/encoding via libspeex [no]
209 --enable-libtheora enable Theora encoding via libtheora [no]
210 --enable-libtwolame enable MP2 encoding via libtwolame [no]
211 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
212 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
213 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
214 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
215 --enable-libwavpack enable wavpack encoding via libwavpack [no]
216 --enable-libwebp enable WebP encoding via libwebp [no]
217 --enable-libx264 enable H.264 encoding via x264 [no]
218 --enable-libx265 enable HEVC encoding via x265 [no]
219 --enable-libxavs enable AVS encoding via xavs [no]
220 --enable-libxcb enable X11 grabbing using XCB [no]
221 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
222 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
223 --enable-libxvid enable Xvid encoding via xvidcore,
224 native MPEG-4/Xvid encoder exists [no]
225 --enable-mmal enable decoding via MMAL [no]
226 --enable-nvenc enable encoding via NVENC [no]
227 --enable-openssl enable openssl [no]
228 --enable-x11grab enable X11 grabbing (legacy) [no]
229 --enable-zlib enable zlib [autodetect]
230
231 Toolchain options:
232 --arch=ARCH select architecture [$arch]
233 --cpu=CPU select the minimum required CPU (affects
234 instruction selection, may crash on older CPUs)
235 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
236 --enable-cross-compile assume a cross-compiler is used
237 --sysroot=PATH root of cross-build tree
238 --sysinclude=PATH location of cross-build system headers
239 --target-os=OS compiler targets OS [$target_os]
240 --target-exec=CMD command to run executables on target
241 --target-path=DIR path to view of build directory on target
242 --target-samples=DIR path to samples directory on target
243 --toolchain=NAME set tool defaults according to NAME
244 --nm=NM use nm tool
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --cc=CC use C compiler CC [$cc_default]
248 --objcc=OCC use ObjC compiler OCC [$cc_default]
249 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
250 --ld=LD use linker LD
251 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
252 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
253 --host-cc=HOSTCC use host C compiler HOSTCC
254 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
255 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
256 --host-ld=HOSTLD use host linker HOSTLD
257 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
258 --host-libs=HLIBS use libs HLIBS when linking for host
259 --host-os=OS compiler host OS [$target_os]
260 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
261 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
262 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
264 --extra-libs=ELIBS add ELIBS [$ELIBS]
265 --extra-version=STRING version string suffix []
266 --optflags=OPTFLAGS override optimization-related compiler flags
267 --build-suffix=SUFFIX library name suffix []
268 --enable-pic build position-independent code
269 --enable-thumb compile for Thumb instruction set
270 --enable-lto use link-time optimization
271 --env="ENV=override" override the environment variables
272
273 Advanced options (experts only):
274 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
275 --custom-allocator=NAME use a supported custom allocator
276 --disable-symver disable symbol versioning
277 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
278 --disable-safe-bitstream-reader
279 disable buffer boundary checking in bitreaders
280 (faster, but may crash)
281 --enable-memalign-hack emulate memalign, interferes with memory debuggers
282 --enable-sram allow use of on-chip SRAM
283
284 Optimization options (experts only):
285 --disable-asm disable all assembly optimizations
286 --disable-altivec disable AltiVec optimizations
287 --disable-vsx disable VSX optimizations
288 --disable-power8 disable POWER8 optimizations
289 --disable-amd3dnow disable 3DNow! optimizations
290 --disable-amd3dnowext disable 3DNow! extended optimizations
291 --disable-mmx disable MMX optimizations
292 --disable-mmxext disable MMXEXT optimizations
293 --disable-sse disable SSE optimizations
294 --disable-sse2 disable SSE2 optimizations
295 --disable-sse3 disable SSE3 optimizations
296 --disable-ssse3 disable SSSE3 optimizations
297 --disable-sse4 disable SSE4 optimizations
298 --disable-sse42 disable SSE4.2 optimizations
299 --disable-avx disable AVX optimizations
300 --disable-xop disable XOP optimizations
301 --disable-fma3 disable FMA3 optimizations
302 --disable-fma4 disable FMA4 optimizations
303 --disable-avx2 disable AVX2 optimizations
304 --disable-armv5te disable armv5te optimizations
305 --disable-armv6 disable armv6 optimizations
306 --disable-armv6t2 disable armv6t2 optimizations
307 --disable-vfp disable VFP optimizations
308 --disable-neon disable NEON optimizations
309 --disable-inline-asm disable use of inline assembly
310 --disable-yasm disable use of nasm/yasm assembly
311
312 Developer options (useful when working on Libav itself):
313 --disable-debug disable debugging symbols
314 --enable-debug=LEVEL set the debug level [$debuglevel]
315 --disable-optimizations disable compiler optimizations
316 --enable-extra-warnings enable more compiler warnings
317 --samples=PATH location of test samples for FATE, if not set use
318 \$LIBAV_SAMPLES at make invocation time.
319 --enable-neon-clobber-test check NEON registers for clobbering (should be
320 used only for debugging purposes)
321 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
322 should be used only for debugging purposes)
323 --enable-random randomly enable/disable components
324 --disable-random
325 --enable-random=LIST randomly enable/disable specific components or
326 --disable-random=LIST component groups. LIST is a comma-separated list
327 of NAME[:PROB] entries where NAME is a component
328 (group) and PROB the probability associated with
329 NAME (default 0.5).
330 --random-seed=VALUE seed value for --enable/disable-random
331 --disable-valgrind-backtrace do not print a backtrace under Valgrind
332 (only applies to --disable-optimizations builds)
333
334 NOTE: Object files are built at the place where configure is launched.
335 EOF
336 exit 0
337 }
338
339 quotes='""'
340
341 log(){
342 echo "$@" >> $logfile
343 }
344
345 log_file(){
346 log BEGIN $1
347 i=1
348 while read line; do
349 printf '%5s %s\n' "${i}" "${line}"
350 i=$(($i+1))
351 done < $1 >> $logfile
352 log END $1
353 }
354
355 echolog(){
356 log "$@"
357 echo "$@"
358 }
359
360 warn(){
361 log "WARNING: $*"
362 WARNINGS="${WARNINGS}WARNING: $*\n"
363 }
364
365 die(){
366 echolog "$@"
367 cat <<EOF
368
369 If you think configure made a mistake, make sure you are using the latest
370 version from Git. If the latest version fails, report the problem to the
371 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
372 EOF
373 if disabled logging; then
374 cat <<EOF
375 Rerun configure with logging enabled (do not use --disable-logging), and
376 include the log this produces with your report.
377 EOF
378 else
379 cat <<EOF
380 Include the log file "$logfile" produced by configure as this will help
381 solving the problem.
382 EOF
383 fi
384 exit 1
385 }
386
387 # Avoid locale weirdness, besides we really just want to translate ASCII.
388 toupper(){
389 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
390 }
391
392 tolower(){
393 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
394 }
395
396 c_escape(){
397 echo "$*" | sed 's/["\\]/\\\0/g'
398 }
399
400 sh_quote(){
401 v=$(echo "$1" | sed "s/'/'\\\\''/g")
402 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
403 echo "$v"
404 }
405
406 cleanws(){
407 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
408 }
409
410 filter(){
411 pat=$1
412 shift
413 for v; do
414 eval "case $v in $pat) echo $v ;; esac"
415 done
416 }
417
418 filter_out(){
419 pat=$1
420 shift
421 for v; do
422 eval "case $v in $pat) ;; *) echo $v ;; esac"
423 done
424 }
425
426 map(){
427 m=$1
428 shift
429 for v; do eval $m; done
430 }
431
432 add_suffix(){
433 suffix=$1
434 shift
435 for v; do echo ${v}${suffix}; done
436 }
437
438 set_all(){
439 value=$1
440 shift
441 for var in $*; do
442 eval $var=$value
443 done
444 }
445
446 set_weak(){
447 value=$1
448 shift
449 for var; do
450 eval : \${$var:=$value}
451 done
452 }
453
454 sanitize_var_name(){
455 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
456 }
457
458 set_safe(){
459 var=$1
460 shift
461 eval $(sanitize_var_name "$var")='$*'
462 }
463
464 get_safe(){
465 eval echo \$$(sanitize_var_name "$1")
466 }
467
468 pushvar(){
469 for pvar in $*; do
470 eval level=\${${pvar}_level:=0}
471 eval ${pvar}_${level}="\$$pvar"
472 eval ${pvar}_level=$(($level+1))
473 done
474 }
475
476 popvar(){
477 for pvar in $*; do
478 eval level=\${${pvar}_level:-0}
479 test $level = 0 && continue
480 eval level=$(($level-1))
481 eval $pvar="\${${pvar}_${level}}"
482 eval ${pvar}_level=$level
483 eval unset ${pvar}_${level}
484 done
485 }
486
487 enable(){
488 set_all yes $*
489 }
490
491 disable(){
492 set_all no $*
493 }
494
495 enable_weak(){
496 set_weak yes $*
497 }
498
499 disable_weak(){
500 set_weak no $*
501 }
502
503 enable_safe(){
504 for var; do
505 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
506 done
507 }
508
509 disable_safe(){
510 for var; do
511 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
512 done
513 }
514
515 do_enable_deep(){
516 for var; do
517 enabled $var && continue
518 eval sel="\$${var}_select"
519 eval sgs="\$${var}_suggest"
520 pushvar var sgs
521 enable_deep $sel
522 popvar sgs
523 enable_deep_weak $sgs
524 popvar var
525 done
526 }
527
528 enable_deep(){
529 do_enable_deep $*
530 enable $*
531 }
532
533 enable_deep_weak(){
534 for var; do
535 disabled $var && continue
536 pushvar var
537 do_enable_deep $var
538 popvar var
539 enable_weak $var
540 done
541 }
542
543 enabled(){
544 test "${1#!}" = "$1" && op== || op=!=
545 eval test "x\$${1#!}" $op "xyes"
546 }
547
548 disabled(){
549 test "${1#!}" = "$1" && op== || op=!=
550 eval test "x\$${1#!}" $op "xno"
551 }
552
553 enabled_all(){
554 for opt; do
555 enabled $opt || return 1
556 done
557 }
558
559 disabled_all(){
560 for opt; do
561 disabled $opt || return 1
562 done
563 }
564
565 enabled_any(){
566 for opt; do
567 enabled $opt && return 0
568 done
569 }
570
571 disabled_any(){
572 for opt; do
573 disabled $opt && return 0
574 done
575 return 1
576 }
577
578 set_default(){
579 for opt; do
580 eval : \${$opt:=\$${opt}_default}
581 done
582 }
583
584 is_in(){
585 value=$1
586 shift
587 for var in $*; do
588 [ $var = $value ] && return 0
589 done
590 return 1
591 }
592
593 do_check_deps(){
594 for cfg; do
595 cfg="${cfg#!}"
596 enabled ${cfg}_checking && die "Circular dependency for $cfg."
597 disabled ${cfg}_checking && continue
598 enable ${cfg}_checking
599 append allopts $cfg
600
601 eval dep_all="\$${cfg}_deps"
602 eval dep_any="\$${cfg}_deps_any"
603 eval dep_sel="\$${cfg}_select"
604 eval dep_sgs="\$${cfg}_suggest"
605 eval dep_ifa="\$${cfg}_if"
606 eval dep_ifn="\$${cfg}_if_any"
607
608 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611
612 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614 enabled_all $dep_all || disable $cfg
615 enabled_any $dep_any || disable $cfg
616 disabled_any $dep_sel && disable $cfg
617
618 if enabled $cfg; then
619 enable_deep $dep_sel
620 enable_deep_weak $dep_sgs
621 fi
622
623 disable ${cfg}_checking
624 done
625 }
626
627 check_deps(){
628 unset allopts
629
630 do_check_deps "$@"
631
632 for cfg in $allopts; do
633 enabled $cfg || continue
634 eval dep_extralibs="\$${cfg}_extralibs"
635 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
636 done
637 }
638
639 print_config(){
640 pfx=$1
641 files=$2
642 shift 2
643 map 'eval echo "$v \${$v:-no}"' "$@" |
644 awk "BEGIN { split(\"$files\", files) }
645 {
646 c = \"$pfx\" toupper(\$1);
647 v = \$2;
648 sub(/yes/, 1, v);
649 sub(/no/, 0, v);
650 for (f in files) {
651 file = files[f];
652 if (file ~ /\\.h\$/) {
653 printf(\"#define %s %d\\n\", c, v) >>file;
654 } else if (file ~ /\\.asm\$/) {
655 printf(\"%%define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.mak\$/) {
657 n = -v ? \"\" : \"!\";
658 printf(\"%s%s=yes\\n\", n, c) >>file;
659 }
660 }
661 }"
662 }
663
664 print_enabled(){
665 suf=$1
666 shift
667 for v; do
668 enabled $v && printf "%s\n" ${v%$suf};
669 done
670 }
671
672 append(){
673 var=$1
674 shift
675 eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679 var=$1
680 shift
681 eval "$var=\"$* \$$var\""
682 }
683
684 unique(){
685 var=$1
686 uniq_list=""
687 for tok in $(eval echo \$$var); do
688 uniq_list="$(filter_out $tok $uniq_list) $tok"
689 done
690 eval "$var=\"${uniq_list}\""
691 }
692
693 add_cppflags(){
694 append CPPFLAGS "$@"
695 }
696
697 add_cflags(){
698 append CFLAGS $($cflags_filter "$@")
699 }
700
701 add_asflags(){
702 append ASFLAGS $($asflags_filter "$@")
703 }
704
705 add_objcflags(){
706 append OBJCFLAGS $($objcflags_filter "$@")
707 }
708
709 add_ldflags(){
710 append LDFLAGS $($ldflags_filter "$@")
711 }
712
713 add_ldexeflags(){
714 append LDEXEFLAGS $($ldflags_filter "$@")
715 }
716
717 add_stripflags(){
718 append STRIPFLAGS "$@"
719 }
720
721 add_extralibs(){
722 prepend extralibs $($ldflags_filter "$@")
723 }
724
725 add_host_cppflags(){
726 append host_cppflags "$@"
727 }
728
729 add_host_cflags(){
730 append host_cflags $($host_cflags_filter "$@")
731 }
732
733 add_host_ldflags(){
734 append host_ldflags $($host_ldflags_filter "$@")
735 }
736
737 add_compat(){
738 append compat_objs $1
739 shift
740 map 'add_cppflags -D$v' "$@"
741 }
742
743 check_cmd(){
744 log "$@"
745 "$@" >> $logfile 2>&1
746 }
747
748 cc_o(){
749 eval printf '%s\\n' $CC_O
750 }
751
752 cc_e(){
753 eval printf '%s\\n' $CC_E
754 }
755
756 check_cc(){
757 log check_cc "$@"
758 cat > $TMPC
759 log_file $TMPC
760 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
761 }
762
763 check_objcc(){
764 log check_objcc "$@"
765 cat > $TMPC
766 log_file $TMPC
767 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
768 }
769
770 check_cpp(){
771 log check_cpp "$@"
772 cat > $TMPC
773 log_file $TMPC
774 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
775 }
776
777 as_o(){
778 eval printf '%s\\n' $AS_O
779 }
780
781 check_as(){
782 log check_as "$@"
783 cat > $TMPS
784 log_file $TMPS
785 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
786 }
787
788 check_inline_asm(){
789 log check_inline_asm "$@"
790 name="$1"
791 code="$2"
792 shift 2
793 disable $name
794 check_cc "$@" <<EOF && enable $name
795 void foo(void){ __asm__ volatile($code); }
796 EOF
797 }
798
799 check_insn(){
800 log check_insn "$@"
801 check_inline_asm ${1}_inline "\"$2\""
802 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
803 }
804
805 check_yasm(){
806 log check_yasm "$@"
807 echo "$1" > $TMPS
808 log_file $TMPS
809 shift 1
810 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
811 }
812
813 ld_o(){
814 eval printf '%s\\n' $LD_O
815 }
816
817 check_ld(){
818 log check_ld "$@"
819 flags=$(filter_out '-l*' "$@")
820 libs=$(filter '-l*' "$@")
821 check_cc $($cflags_filter $flags) || return
822 flags=$($ldflags_filter $flags)
823 libs=$($ldflags_filter $libs)
824 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
825 }
826
827 print_include(){
828 hdr=$1
829 test "${hdr%.h}" = "${hdr}" &&
830 echo "#include $hdr" ||
831 echo "#include <$hdr>"
832 }
833
834 check_code(){
835 log check_code "$@"
836 check=$1
837 headers=$2
838 code=$3
839 shift 3
840 {
841 for hdr in $headers; do
842 print_include $hdr
843 done
844 echo "int main(void) { $code; return 0; }"
845 } | check_$check "$@"
846 }
847
848 check_cppflags(){
849 log check_cppflags "$@"
850 check_cc "$@" <<EOF && append CPPFLAGS "$@"
851 int x;
852 EOF
853 }
854
855 test_cflags(){
856 log test_cflags "$@"
857 set -- $($cflags_filter "$@")
858 check_cc "$@" <<EOF
859 int x;
860 EOF
861 }
862
863 check_cflags(){
864 log check_cflags "$@"
865 test_cflags "$@" && add_cflags "$@"
866 }
867
868 test_objcflags(){
869 log test_cflags "$@"
870 set -- $($cflags_filter "$@")
871 check_objcc "$@" <<EOF
872 int x;
873 EOF
874 }
875
876 check_objcflags(){
877 log check_cflags "$@"
878 test_objcflags "$@" && add_objcflags "$@"
879 }
880
881 test_ldflags(){
882 log test_ldflags "$@"
883 check_ld "$@" <<EOF
884 int main(void){ return 0; }
885 EOF
886 }
887
888 check_ldflags(){
889 log check_ldflags "$@"
890 test_ldflags "$@" && add_ldflags "$@"
891 }
892
893 test_stripflags(){
894 log test_stripflags "$@"
895 # call check_cc to get a fresh TMPO
896 check_cc <<EOF
897 int main(void) { return 0; }
898 EOF
899 check_cmd $strip $STRIPFLAGS "$@" $TMPO
900 }
901
902 check_stripflags(){
903 log check_stripflags "$@"
904 test_stripflags "$@" && add_stripflags "$@"
905 }
906
907 check_header(){
908 log check_header "$@"
909 header=$1
910 shift
911 disable_safe $header
912 check_cpp "$@" <<EOF && enable_safe $header
913 #include <$header>
914 int x;
915 EOF
916 }
917
918 check_func(){
919 log check_func "$@"
920 func=$1
921 shift
922 disable $func
923 check_ld "$@" <<EOF && enable $func
924 extern int $func();
925 int main(void){ $func(); }
926 EOF
927 }
928
929 check_mathfunc(){
930 log check_mathfunc "$@"
931 func=$1
932 narg=$2
933 shift 2
934 test $narg = 2 && args="f, g" || args="f"
935 disable $func
936 check_ld "$@" <<EOF && enable $func
937 #include <math.h>
938 float foo(float f, float g) { return $func($args); }
939 int main(void){ return 0; }
940 EOF
941 }
942
943 check_func_headers(){
944 log check_func_headers "$@"
945 headers=$1
946 funcs=$2
947 shift 2
948 {
949 for hdr in $headers; do
950 print_include $hdr
951 done
952 for func in $funcs; do
953 echo "long check_$func(void) { return (long) $func; }"
954 done
955 echo "int main(void) { return 0; }"
956 } | check_ld "$@" && enable $funcs && enable_safe $headers
957 }
958
959 check_cpp_condition(){
960 log check_cpp_condition "$@"
961 header=$1
962 condition=$2
963 shift 2
964 check_cpp "$@" <<EOF
965 #include <$header>
966 #if !($condition)
967 #error "unsatisfied condition: $condition"
968 #endif
969 EOF
970 }
971
972 check_lib(){
973 log check_lib "$@"
974 header="$1"
975 func="$2"
976 shift 2
977 check_header $header && check_func $func "$@" && add_extralibs "$@"
978 }
979
980 check_lib2(){
981 log check_lib2 "$@"
982 headers="$1"
983 funcs="$2"
984 shift 2
985 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
986 }
987
988 check_pkg_config(){
989 log check_pkg_config "$@"
990 pkg="$1"
991 headers="$2"
992 funcs="$3"
993 shift 3
994 check_cmd $pkg_config --exists --print-errors $pkg || return
995 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
996 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
997 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
998 set_safe "${pkg}_cflags" $pkg_cflags &&
999 set_safe "${pkg}_libs" $pkg_libs
1000 }
1001
1002 check_exec(){
1003 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1004 }
1005
1006 check_exec_crash(){
1007 code=$(cat)
1008
1009 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1010 # are safe but may not be available everywhere. Thus we use
1011 # raise(SIGTERM) instead. The check is run in a subshell so we
1012 # can redirect the "Terminated" message from the shell. SIGBUS
1013 # is not defined by standard C so it is used conditionally.
1014
1015 (check_exec "$@") >> $logfile 2>&1 <<EOF
1016 #include <signal.h>
1017 static void sighandler(int sig){
1018 raise(SIGTERM);
1019 }
1020 int foo(void){
1021 $code
1022 }
1023 int (*func_ptr)(void) = foo;
1024 int main(void){
1025 signal(SIGILL, sighandler);
1026 signal(SIGFPE, sighandler);
1027 signal(SIGSEGV, sighandler);
1028 #ifdef SIGBUS
1029 signal(SIGBUS, sighandler);
1030 #endif
1031 return func_ptr();
1032 }
1033 EOF
1034 }
1035
1036 check_type(){
1037 log check_type "$@"
1038 headers=$1
1039 type=$2
1040 shift 2
1041 disable_safe "$type"
1042 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1043 }
1044
1045 check_struct(){
1046 log check_struct "$@"
1047 headers=$1
1048 struct=$2
1049 member=$3
1050 shift 3
1051 disable_safe "${struct}_${member}"
1052 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1053 enable_safe "${struct}_${member}"
1054 }
1055
1056 check_builtin(){
1057 log check_builtin "$@"
1058 name=$1
1059 headers=$2
1060 builtin=$3
1061 shift 3
1062 disable "$name"
1063 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1064 }
1065
1066 check_compile_assert(){
1067 log check_compile_assert "$@"
1068 name=$1
1069 headers=$2
1070 condition=$3
1071 shift 3
1072 disable "$name"
1073 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1074 }
1075
1076 require(){
1077 name="$1"
1078 header="$2"
1079 func="$3"
1080 shift 3
1081 check_lib $header $func "$@" || die "ERROR: $name not found"
1082 }
1083
1084 require2(){
1085 name="$1"
1086 headers="$2"
1087 func="$3"
1088 shift 3
1089 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1090 }
1091
1092 require_pkg_config(){
1093 pkg="$1"
1094 check_pkg_config "$@" || die "ERROR: $pkg not found"
1095 add_cflags $(get_safe "${pkg}_cflags")
1096 add_extralibs $(get_safe "${pkg}_libs")
1097 }
1098
1099 hostcc_e(){
1100 eval printf '%s\\n' $HOSTCC_E
1101 }
1102
1103 hostcc_o(){
1104 eval printf '%s\\n' $HOSTCC_O
1105 }
1106
1107 check_host_cc(){
1108 log check_host_cc "$@"
1109 cat > $TMPC
1110 log_file $TMPC
1111 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1112 }
1113
1114 check_host_cpp(){
1115 log check_host_cpp "$@"
1116 cat > $TMPC
1117 log_file $TMPC
1118 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1119 }
1120
1121 check_host_cppflags(){
1122 log check_host_cppflags "$@"
1123 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1124 int x;
1125 EOF
1126 }
1127
1128 check_host_cflags(){
1129 log check_host_cflags "$@"
1130 set -- $($host_cflags_filter "$@")
1131 check_host_cc "$@" <<EOF && append host_cflags "$@"
1132 int x;
1133 EOF
1134 }
1135
1136 check_host_cpp_condition(){
1137 log check_host_cpp_condition "$@"
1138 header=$1
1139 condition=$2
1140 shift 2
1141 check_host_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 apply(){
1150 file=$1
1151 shift
1152 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1153 }
1154
1155 cp_if_changed(){
1156 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1157 mkdir -p "$(dirname $2)"
1158 $cp_f "$1" "$2"
1159 }
1160
1161 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1162 # system-dependent things.
1163
1164 AVCODEC_COMPONENTS="
1165 bsfs
1166 decoders
1167 encoders
1168 hwaccels
1169 parsers
1170 "
1171
1172 AVDEVICE_COMPONENTS="
1173 indevs
1174 outdevs
1175 "
1176 AVFILTER_COMPONENTS="
1177 filters
1178 "
1179 AVFORMAT_COMPONENTS="
1180 demuxers
1181 muxers
1182 protocols
1183 "
1184
1185 AVRESAMPLE_COMPONENTS=""
1186 AVUTIL_COMPONENTS=""
1187
1188 COMPONENT_LIST="
1189 $AVCODEC_COMPONENTS
1190 $AVDEVICE_COMPONENTS
1191 $AVFILTER_COMPONENTS
1192 $AVFORMAT_COMPONENTS
1193 $AVRESAMPLE_COMPONENTS
1194 $AVUTIL_COMPONENTS
1195 "
1196
1197 EXAMPLE_LIST="
1198 avcodec_example
1199 filter_audio_example
1200 metadata_example
1201 output_example
1202 qsvdec_example
1203 transcode_aac_example
1204 "
1205
1206 EXTERNAL_LIBRARY_LIST="
1207 avisynth
1208 bzlib
1209 cuda
1210 frei0r
1211 gnutls
1212 libbs2b
1213 libcdio
1214 libdc1394
1215 libdcadec
1216 libfaac
1217 libfdk_aac
1218 libfontconfig
1219 libfreetype
1220 libgsm
1221 libilbc
1222 libkvazaar
1223 libmfx
1224 libmp3lame
1225 libopencore_amrnb
1226 libopencore_amrwb
1227 libopencv
1228 libopenh264
1229 libopenjpeg
1230 libopus
1231 libpulse
1232 librtmp
1233 libschroedinger
1234 libsnappy
1235 libspeex
1236 libtheora
1237 libtwolame
1238 libvo_aacenc
1239 libvo_amrwbenc
1240 libvorbis
1241 libvpx
1242 libwavpack
1243 libwebp
1244 libx264
1245 libx265
1246 libxavs
1247 libxcb
1248 libxcb_shm
1249 libxcb_xfixes
1250 libxvid
1251 mmal
1252 nvenc
1253 openssl
1254 x11grab
1255 zlib
1256 "
1257
1258 FEATURE_LIST="
1259 gray
1260 hardcoded_tables
1261 runtime_cpudetect
1262 safe_bitstream_reader
1263 shared
1264 small
1265 sram
1266 static
1267 swscale_alpha
1268 "
1269
1270 HWACCEL_LIST="
1271 d3d11va
1272 dxva2
1273 vaapi
1274 vda
1275 vdpau
1276 "
1277
1278 LIBRARY_LIST="
1279 avcodec
1280 avdevice
1281 avfilter
1282 avformat
1283 avresample
1284 avutil
1285 swscale
1286 "
1287
1288 LICENSE_LIST="
1289 gpl
1290 nonfree
1291 version3
1292 "
1293
1294 PROGRAM_LIST="
1295 avconv
1296 avplay
1297 avprobe
1298 "
1299
1300 SUBSYSTEM_LIST="
1301 dct
1302 doc
1303 error_resilience
1304 faan
1305 fft
1306 lsp
1307 lzo
1308 mdct
1309 network
1310 rdft
1311 "
1312
1313 CONFIG_LIST="
1314 $COMPONENT_LIST
1315 $EXAMPLE_LIST
1316 $EXTERNAL_LIBRARY_LIST
1317 $FEATURE_LIST
1318 $HWACCEL_LIST
1319 $LICENSE_LIST
1320 $LIBRARY_LIST
1321 $PROGRAM_LIST
1322 $SUBSYSTEM_LIST
1323 memalign_hack
1324 neon_clobber_test
1325 pic
1326 pod2man
1327 texi2html
1328 thumb
1329 valgrind_backtrace
1330 xmm_clobber_test
1331 "
1332
1333 THREADS_LIST="
1334 pthreads
1335 w32threads
1336 "
1337
1338 ATOMICS_LIST="
1339 atomics_gcc
1340 atomics_suncc
1341 atomics_win32
1342 "
1343
1344 ARCH_LIST="
1345 aarch64
1346 alpha
1347 arm
1348 avr32
1349 avr32_ap
1350 avr32_uc
1351 bfin
1352 ia64
1353 m68k
1354 mips
1355 mips64
1356 parisc
1357 ppc
1358 ppc64
1359 s390
1360 sh4
1361 sparc
1362 sparc64
1363 tilegx
1364 tilepro
1365 tomi
1366 x86
1367 x86_32
1368 x86_64
1369 "
1370
1371 ARCH_EXT_LIST_ARM="
1372 armv5te
1373 armv6
1374 armv6t2
1375 armv8
1376 neon
1377 vfp
1378 vfpv3
1379 "
1380
1381 ARCH_EXT_LIST_X86_SIMD="
1382 amd3dnow
1383 amd3dnowext
1384 avx
1385 avx2
1386 fma3
1387 fma4
1388 mmx
1389 mmxext
1390 sse
1391 sse2
1392 sse3
1393 sse4
1394 sse42
1395 ssse3
1396 xop
1397 "
1398
1399 ARCH_EXT_LIST_PPC="
1400 altivec
1401 dcbzl
1402 ldbrx
1403 power8
1404 ppc4xx
1405 vsx
1406 "
1407
1408 ARCH_EXT_LIST_X86="
1409 $ARCH_EXT_LIST_X86_SIMD
1410 cpunop
1411 i686
1412 "
1413
1414 ARCH_EXT_LIST_MIPS="
1415 loongson
1416 mips32r1
1417 mips64r1
1418 mips32r2
1419 mips64r2
1420 mips32r6
1421 mips64r6
1422 "
1423
1424 ARCH_EXT_LIST="
1425 $ARCH_EXT_LIST_ARM
1426 $ARCH_EXT_LIST_MIPS
1427 $ARCH_EXT_LIST_PPC
1428 $ARCH_EXT_LIST_X86
1429 vis
1430 "
1431
1432 ARCH_FEATURES="
1433 aligned_stack
1434 fast_64bit
1435 fast_clz
1436 fast_cmov
1437 local_aligned_8
1438 local_aligned_16
1439 simd_align_16
1440 "
1441
1442 BUILTIN_LIST="
1443 atomic_cas_ptr
1444 machine_rw_barrier
1445 MemoryBarrier
1446 mm_empty
1447 rdtsc
1448 sync_val_compare_and_swap
1449 "
1450 HAVE_LIST_CMDLINE="
1451 inline_asm
1452 symver
1453 yasm
1454 "
1455
1456 HAVE_LIST_PUB="
1457 bigendian
1458 fast_unaligned
1459 "
1460
1461 HEADERS_LIST="
1462 AVFoundation_AVFoundation_h
1463 alsa_asoundlib_h
1464 altivec_h
1465 arpa_inet_h
1466 cdio_paranoia_h
1467 cdio_paranoia_paranoia_h
1468 dev_bktr_ioctl_bt848_h
1469 dev_bktr_ioctl_meteor_h
1470 dev_ic_bt8xx_h
1471 dev_video_bktr_ioctl_bt848_h
1472 dev_video_meteor_ioctl_meteor_h
1473 direct_h
1474 dlfcn_h
1475 d3d11_h
1476 dxva_h
1477 gsm_h
1478 io_h
1479 mach_mach_time_h
1480 machine_ioctl_bt848_h
1481 machine_ioctl_meteor_h
1482 malloc_h
1483 poll_h
1484 sndio_h
1485 soundcard_h
1486 sys_mman_h
1487 sys_param_h
1488 sys_resource_h
1489 sys_select_h
1490 sys_soundcard_h
1491 sys_time_h
1492 sys_un_h
1493 sys_videoio_h
1494 unistd_h
1495 valgrind_valgrind_h
1496 windows_h
1497 winsock2_h
1498 "
1499
1500 INTRINSICS_LIST="
1501 intrinsics_neon
1502 "
1503
1504 MATH_FUNCS="
1505 atanf
1506 atan2f
1507 cbrtf
1508 cosf
1509 exp2
1510 exp2f
1511 expf
1512 isinf
1513 isnan
1514 ldexpf
1515 llrint
1516 llrintf
1517 log2
1518 log2f
1519 log10f
1520 lrint
1521 lrintf
1522 powf
1523 rint
1524 round
1525 roundf
1526 sinf
1527 trunc
1528 truncf
1529 "
1530
1531 SYSTEM_FUNCS="
1532 aligned_malloc
1533 clock_gettime
1534 closesocket
1535 CommandLineToArgvW
1536 CoTaskMemFree
1537 CryptGenRandom
1538 dlopen
1539 fcntl
1540 flt_lim
1541 fork
1542 getaddrinfo
1543 gethrtime
1544 getopt
1545 GetProcessAffinityMask
1546 GetProcessMemoryInfo
1547 GetProcessTimes
1548 getrusage
1549 GetSystemTimeAsFileTime
1550 gettimeofday
1551 gmtime_r
1552 inet_aton
1553 isatty
1554 jack_port_get_latency_range
1555 LoadLibrary
1556 localtime_r
1557 mach_absolute_time
1558 MapViewOfFile
1559 memalign
1560 mkstemp
1561 mmap
1562 mprotect
1563 nanosleep
1564 posix_memalign
1565 sched_getaffinity
1566 SetConsoleTextAttribute
1567 setmode
1568 setrlimit
1569 Sleep
1570 strerror_r
1571 sysconf
1572 sysctl
1573 usleep
1574 VirtualAlloc
1575 "
1576
1577 TOOLCHAIN_FEATURES="
1578 as_dn_directive
1579 as_func
1580 as_object_arch
1581 asm_mod_q
1582 attribute_may_alias
1583 attribute_packed
1584 ebp_available
1585 ebx_available
1586 gnu_as
1587 ibm_asm
1588 inline_asm_labels
1589 pragma_deprecated
1590 symver_asm_label
1591 symver_gnu_asm
1592 vfp_args
1593 xform_asm
1594 xmm_clobbers
1595 "
1596
1597 TYPES_LIST="
1598 CONDITION_VARIABLE_Ptr
1599 socklen_t
1600 struct_addrinfo
1601 struct_group_source_req
1602 struct_ip_mreq_source
1603 struct_ipv6_mreq
1604 struct_pollfd
1605 struct_rusage_ru_maxrss
1606 struct_sockaddr_in6
1607 struct_sockaddr_sa_len
1608 struct_sockaddr_storage
1609 struct_v4l2_frmivalenum_discrete
1610 "
1611
1612 HAVE_LIST="
1613 $ARCH_EXT_LIST
1614 $(add_suffix _external $ARCH_EXT_LIST)
1615 $(add_suffix _inline $ARCH_EXT_LIST)
1616 $ARCH_FEATURES
1617 $ATOMICS_LIST
1618 $BUILTIN_LIST
1619 $HAVE_LIST_CMDLINE
1620 $HAVE_LIST_PUB
1621 $HEADERS_LIST
1622 $INTRINSICS_LIST
1623 $MATH_FUNCS
1624 $SYSTEM_FUNCS
1625 $THREADS_LIST
1626 $TOOLCHAIN_FEATURES
1627 $TYPES_LIST
1628 atomics_native
1629 dos_paths
1630 dxva2_lib
1631 libc_msvcrt
1632 libdc1394_1
1633 libdc1394_2
1634 sdl
1635 section_data_rel_ro
1636 threads
1637 vaapi_x11
1638 vdpau_x11
1639 xlib
1640 "
1641
1642 # options emitted with CONFIG_ prefix but not available on the command line
1643 CONFIG_EXTRA="
1644 aandcttables
1645 ac3dsp
1646 audio_frame_queue
1647 audiodsp
1648 blockdsp
1649 bswapdsp
1650 cabac
1651 dirac_parse
1652 dvprofile
1653 faandct
1654 faanidct
1655 fdctdsp
1656 flacdsp
1657 fmtconvert
1658 g722dsp
1659 gcrypt
1660 gmp
1661 golomb
1662 gplv3
1663 h263dsp
1664 h264chroma
1665 h264dsp
1666 h264pred
1667 h264qpel
1668 hpeldsp
1669 huffman
1670 huffyuvdsp
1671 huffyuvencdsp
1672 idctdsp
1673 iirfilter
1674 imdct15
1675 intrax8
1676 iso_media
1677 ividsp
1678 jpegtables
1679 libx262
1680 lgplv3
1681 lpc
1682 lzf
1683 me_cmp
1684 mpeg_er
1685 mpegaudio
1686 mpegaudiodsp
1687 mpegvideo
1688 mpegvideoenc
1689 mss34dsp
1690 pixblockdsp
1691 qpeldsp
1692 qsv
1693 qsvdec
1694 qsvenc
1695 rangecoder
1696 riffdec
1697 riffenc
1698 rtpdec
1699 rtpenc_chain
1700 rv34dsp
1701 sinewin
1702 snappy
1703 startcode
1704 texturedsp
1705 texturedspenc
1706 tpeldsp
1707 videodsp
1708 vp3dsp
1709 vp56dsp
1710 vp8dsp
1711 wma_freqs
1712 wmv2dsp
1713 "
1714
1715 CMDLINE_SELECT="
1716 $ARCH_EXT_LIST
1717 $CONFIG_LIST
1718 $HAVE_LIST_CMDLINE
1719 $THREADS_LIST
1720 asm
1721 cross_compile
1722 debug
1723 extra_warnings
1724 logging
1725 lto
1726 optimizations
1727 rpath
1728 "
1729
1730 PATHS_LIST="
1731 bindir
1732 datadir
1733 docdir
1734 incdir
1735 libdir
1736 mandir
1737 prefix
1738 shlibdir
1739 "
1740
1741 CMDLINE_SET="
1742 $PATHS_LIST
1743 ar
1744 arch
1745 as
1746 build_suffix
1747 cc
1748 objcc
1749 cpu
1750 cross_prefix
1751 custom_allocator
1752 dep_cc
1753 env
1754 extra_version
1755 host_cc
1756 host_cflags
1757 host_ld
1758 host_ldflags
1759 host_libs
1760 host_os
1761 ld
1762 logfile
1763 malloc_prefix
1764 nm
1765 optflags
1766 pkg_config
1767 pkg_config_flags
1768 random_seed
1769 samples
1770 sysinclude
1771 sysroot
1772 target_exec
1773 target_os
1774 target_path
1775 target_samples
1776 toolchain
1777 "
1778
1779 CMDLINE_APPEND="
1780 extra_cflags
1781 extra_objcflags
1782 host_cppflags
1783 "
1784
1785 # code dependency declarations
1786
1787 # architecture extensions
1788
1789 armv5te_deps="arm"
1790 armv6_deps="arm"
1791 armv6t2_deps="arm"
1792 armv8_deps="aarch64"
1793 neon_deps_any="aarch64 arm"
1794 intrinsics_neon_deps="neon"
1795 vfp_deps_any="aarch64 arm"
1796 vfpv3_deps="vfp"
1797
1798 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1799
1800 altivec_deps="ppc"
1801 ppc4xx_deps="ppc"
1802 vsx_deps="altivec"
1803 power8_deps="vsx"
1804
1805 cpunop_deps="i686"
1806 x86_64_select="i686"
1807 x86_64_suggest="fast_cmov"
1808
1809 amd3dnow_deps="mmx"
1810 amd3dnowext_deps="amd3dnow"
1811 i686_deps="x86"
1812 mmx_deps="x86"
1813 mmxext_deps="mmx"
1814 sse_deps="mmxext"
1815 sse2_deps="sse"
1816 sse3_deps="sse2"
1817 ssse3_deps="sse3"
1818 sse4_deps="ssse3"
1819 sse42_deps="sse4"
1820 avx_deps="sse42"
1821 xop_deps="avx"
1822 fma3_deps="avx"
1823 fma4_deps="avx"
1824 avx2_deps="avx"
1825
1826 mmx_external_deps="yasm"
1827 mmx_inline_deps="inline_asm"
1828 mmx_suggest="mmx_external mmx_inline"
1829
1830 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1831 eval dep=\$${ext}_deps
1832 eval ${ext}_external_deps='"${dep}_external"'
1833 eval ${ext}_inline_deps='"${dep}_inline"'
1834 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1835 done
1836
1837 aligned_stack_if_any="aarch64 ppc x86"
1838 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1839 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1840 fast_unaligned_if_any="aarch64 ppc x86"
1841 simd_align_16_if_any="altivec neon sse"
1842
1843 # system capabilities
1844 symver_if_any="symver_asm_label symver_gnu_asm"
1845 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1846
1847 # threading support
1848 atomics_gcc_if="sync_val_compare_and_swap"
1849 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1850 atomics_win32_if="MemoryBarrier"
1851 atomics_native_if_any="$ATOMICS_LIST"
1852 w32threads_deps="atomics_native"
1853 threads_if_any="$THREADS_LIST"
1854
1855 # subsystems
1856 dct_select="rdft"
1857 dirac_parse_select="golomb"
1858 error_resilience_select="me_cmp"
1859 faandct_deps="faan fdctdsp"
1860 faanidct_deps="faan idctdsp"
1861 intrax8_select="error_resilience"
1862 mdct_select="fft"
1863 rdft_select="fft"
1864 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1865 mpeg_er_select="error_resilience"
1866 mpegaudio_select="mpegaudiodsp"
1867 mpegaudiodsp_select="dct"
1868 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1869 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1870 nvenc_deps_any="dlopen LoadLibrary"
1871 nvenc_extralibs='$ldl'
1872 qsvdec_select="qsv"
1873 qsvenc_select="qsv"
1874
1875 # decoders / encoders
1876 aac_decoder_select="imdct15 mdct sinewin"
1877 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1878 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1879 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1880 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1881 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1882 adpcm_g722_decoder_select="g722dsp"
1883 adpcm_g722_encoder_select="g722dsp"
1884 aic_decoder_select="golomb idctdsp"
1885 alac_encoder_select="lpc"
1886 als_decoder_select="bswapdsp"
1887 amrnb_decoder_select="lsp"
1888 amrwb_decoder_select="lsp"
1889 amv_decoder_select="sp5x_decoder"
1890 ape_decoder_select="bswapdsp"
1891 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1892 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1893 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1894 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1895 atrac1_decoder_select="mdct sinewin"
1896 atrac3_decoder_select="mdct"
1897 atrac3p_decoder_select="mdct sinewin"
1898 bink_decoder_select="blockdsp hpeldsp"
1899 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1900 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1901 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1902 cllc_decoder_select="bswapdsp"
1903 comfortnoise_encoder_select="lpc"
1904 cook_decoder_select="audiodsp mdct sinewin"
1905 cscd_decoder_select="lzo"
1906 cscd_decoder_suggest="zlib"
1907 dca_decoder_select="fmtconvert mdct"
1908 dds_decoder_select="texturedsp"
1909 dnxhd_decoder_select="blockdsp idctdsp"
1910 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1911 dvvideo_decoder_select="dvprofile idctdsp"
1912 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1913 dxa_decoder_deps="zlib"
1914 dxv_decoder_select="lzf texturedsp"
1915 eac3_decoder_select="ac3_decoder"
1916 eac3_encoder_select="ac3_encoder"
1917 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1918 eatgq_decoder_select="aandcttables idctdsp"
1919 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1920 exr_decoder_deps="zlib"
1921 ffv1_decoder_select="golomb rangecoder"
1922 ffv1_encoder_select="rangecoder"
1923 ffvhuff_decoder_select="huffyuv_decoder"
1924 ffvhuff_encoder_select="huffyuv_encoder"
1925 fic_decoder_select="golomb"
1926 flac_decoder_select="flacdsp golomb"
1927 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1928 flashsv_decoder_deps="zlib"
1929 flashsv_encoder_deps="zlib"
1930 flashsv2_decoder_deps="zlib"
1931 flv_decoder_select="h263_decoder"
1932 flv_encoder_select="h263_encoder"
1933 fourxm_decoder_select="blockdsp bswapdsp"
1934 fraps_decoder_select="bswapdsp huffman"
1935 g2m_decoder_deps="zlib"
1936 g2m_decoder_select="blockdsp idctdsp jpegtables"
1937 h261_decoder_select="mpeg_er mpegvideo"
1938 h261_encoder_select="aandcttables mpegvideoenc"
1939 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1940 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1941 h263i_decoder_select="h263_decoder"
1942 h263p_encoder_select="h263_encoder"
1943 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1944 h264_decoder_suggest="error_resilience"
1945 h264_nvenc_encoder_deps="nvenc"
1946 h264_qsv_decoder_deps="libmfx"
1947 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1948 h264_qsv_encoder_deps="libmfx"
1949 h264_qsv_encoder_select="qsvenc"
1950 hap_decoder_select="snappy texturedsp"
1951 hap_encoder_deps="libsnappy"
1952 hap_encoder_select="texturedspenc"
1953 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1954 hevc_nvenc_encoder_deps="nvenc"
1955 hevc_qsv_encoder_deps="libmfx"
1956 hevc_qsv_decoder_deps="libmfx"
1957 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1958 hevc_qsv_encoder_select="qsvenc"
1959 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1960 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1961 iac_decoder_select="imc_decoder"
1962 imc_decoder_select="bswapdsp fft mdct sinewin"
1963 indeo3_decoder_select="hpeldsp"
1964 indeo4_decoder_select="ividsp"
1965 indeo5_decoder_select="ividsp"
1966 interplay_video_decoder_select="hpeldsp"
1967 jpegls_decoder_select="golomb mjpeg_decoder"
1968 jpegls_encoder_select="golomb"
1969 jv_decoder_select="blockdsp"
1970 lagarith_decoder_select="huffyuvdsp"
1971 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1972 loco_decoder_select="golomb"
1973 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1974 metasound_decoder_select="lsp mdct sinewin"
1975 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1976 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1977 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1978 mjpegb_decoder_select="mjpeg_decoder"
1979 mlp_decoder_select="mlp_parser"
1980 motionpixels_decoder_select="bswapdsp"
1981 mp1_decoder_select="mpegaudio"
1982 mp1float_decoder_select="mpegaudio"
1983 mp2_decoder_select="mpegaudio"
1984 mp2float_decoder_select="mpegaudio"
1985 mp3_decoder_select="mpegaudio"
1986 mp3adu_decoder_select="mpegaudio"
1987 mp3adufloat_decoder_select="mpegaudio"
1988 mp3float_decoder_select="mpegaudio"
1989 mp3on4_decoder_select="mpegaudio"
1990 mp3on4float_decoder_select="mpegaudio"
1991 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1992 mpc8_decoder_select="mpegaudiodsp"
1993 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1994 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1995 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1996 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1997 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1998 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1999 mpeg2_qsv_decoder_deps="libmfx"
2000 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2001 mpeg2_qsv_encoder_deps="libmfx"
2002 mpeg2_qsv_encoder_select="qsvenc"
2003 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2004 mpeg4_encoder_select="h263_encoder"
2005 msa1_decoder_select="mss34dsp"
2006 msmpeg4v1_decoder_select="h263_decoder"
2007 msmpeg4v2_decoder_select="h263_decoder"
2008 msmpeg4v2_encoder_select="h263_encoder"
2009 msmpeg4v3_decoder_select="h263_decoder"
2010 msmpeg4v3_encoder_select="h263_encoder"
2011 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2012 mts2_decoder_select="mss34dsp"
2013 mxpeg_decoder_select="mjpeg_decoder"
2014 nellymoser_decoder_select="mdct sinewin"
2015 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2016 nuv_decoder_select="idctdsp lzo"
2017 nvenc_h264_encoder_deps="nvenc"
2018 nvenc_hevc_encoder_deps="nvenc"
2019 on2avc_decoder_select="mdct"
2020 opus_decoder_deps="avresample"
2021 opus_decoder_select="imdct15"
2022 png_decoder_deps="zlib"
2023 png_encoder_deps="zlib"
2024 png_encoder_select="huffyuvencdsp"
2025 prores_decoder_select="idctdsp"
2026 prores_encoder_select="fdctdsp"
2027 qcelp_decoder_select="lsp"
2028 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2029 ra_144_encoder_select="audio_frame_queue lpc"
2030 ralf_decoder_select="golomb"
2031 rscc_decoder_deps="zlib"
2032 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2033 rv10_encoder_select="h263_encoder"
2034 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2035 rv20_encoder_select="h263_encoder"
2036 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2037 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2038 screenpresso_decoder_deps="zlib"
2039 shorten_decoder_select="golomb"
2040 sipr_decoder_select="lsp"
2041 sp5x_decoder_select="mjpeg_decoder"
2042 svq1_decoder_select="hpeldsp"
2043 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2044 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2045 svq3_decoder_suggest="zlib"
2046 tak_decoder_select="audiodsp"
2047 tdsc_decoder_deps="zlib"
2048 tdsc_decoder_select="mjpeg_decoder"
2049 theora_decoder_select="vp3_decoder"
2050 thp_decoder_select="mjpeg_decoder"
2051 tiff_decoder_suggest="zlib"
2052 tiff_encoder_suggest="zlib"
2053 truehd_decoder_select="mlp_decoder"
2054 truemotion2_decoder_select="bswapdsp"
2055 truespeech_decoder_select="bswapdsp"
2056 tscc_decoder_deps="zlib"
2057 txd_decoder_select="texturedsp"
2058 twinvq_decoder_select="mdct lsp sinewin"
2059 utvideo_decoder_select="bswapdsp"
2060 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2061 vble_decoder_select="huffyuvdsp"
2062 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2063 vc1image_decoder_select="vc1_decoder"
2064 vorbis_decoder_select="mdct"
2065 vorbis_encoder_select="mdct"
2066 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2067 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2068 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2069 vp6a_decoder_select="vp6_decoder"
2070 vp6f_decoder_select="vp6_decoder"
2071 vp7_decoder_select="h264pred videodsp vp8dsp"
2072 vp8_decoder_select="h264pred videodsp vp8dsp"
2073 vp9_decoder_select="videodsp"
2074 webp_decoder_select="vp8_decoder"
2075 wmapro_decoder_select="mdct sinewin wma_freqs"
2076 wmav1_decoder_select="mdct sinewin wma_freqs"
2077 wmav1_encoder_select="mdct sinewin wma_freqs"
2078 wmav2_decoder_select="mdct sinewin wma_freqs"
2079 wmav2_encoder_select="mdct sinewin wma_freqs"
2080 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2081 wmv1_decoder_select="h263_decoder"
2082 wmv1_encoder_select="h263_encoder"
2083 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2084 wmv2_encoder_select="h263_encoder wmv2dsp"
2085 wmv3_decoder_select="vc1_decoder"
2086 wmv3image_decoder_select="wmv3_decoder"
2087 zerocodec_decoder_deps="zlib"
2088 zlib_decoder_deps="zlib"
2089 zlib_encoder_deps="zlib"
2090 zmbv_decoder_deps="zlib"
2091 zmbv_encoder_deps="zlib"
2092
2093 # hardware accelerators
2094 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2095 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2096 vaapi_deps="va_va_h"
2097 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2098 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2099 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2100
2101 h263_vaapi_hwaccel_deps="vaapi"
2102 h263_vaapi_hwaccel_select="h263_decoder"
2103 h264_d3d11va_hwaccel_deps="d3d11va"
2104 h264_d3d11va_hwaccel_select="h264_decoder"
2105 h264_dxva2_hwaccel_deps="dxva2"
2106 h264_dxva2_hwaccel_select="h264_decoder"
2107 h264_mmal_decoder_deps="mmal"
2108 h264_mmal_hwaccel_deps="mmal"
2109 h264_mmal_decoder_select="h264_decoder"
2110 h264_mmal_encoder_deps="mmal"
2111 h264_qsv_hwaccel_deps="libmfx"
2112 h264_vaapi_hwaccel_deps="vaapi"
2113 h264_vaapi_hwaccel_select="h264_decoder"
2114 h264_vda_hwaccel_deps="vda"
2115 h264_vda_hwaccel_select="h264_decoder"
2116 h264_vda_old_hwaccel_deps="vda"
2117 h264_vda_old_hwaccel_select="h264_decoder"
2118 h264_vdpau_hwaccel_deps="vdpau"
2119 h264_vdpau_hwaccel_select="h264_decoder"
2120 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2121 hevc_d3d11va_hwaccel_select="hevc_decoder"
2122 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2123 hevc_dxva2_hwaccel_select="hevc_decoder"
2124 hevc_qsv_hwaccel_deps="libmfx"
2125 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2126 hevc_vdpau_hwaccel_select="hevc_decoder"
2127 mpeg1_vdpau_hwaccel_deps="vdpau"
2128 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2129 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2130 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2131 mpeg2_dxva2_hwaccel_deps="dxva2"
2132 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2133 mpeg2_qsv_hwaccel_deps="libmfx"
2134 mpeg2_vaapi_hwaccel_deps="vaapi"
2135 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2136 mpeg2_vdpau_hwaccel_deps="vdpau"
2137 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2138 mpeg4_vaapi_hwaccel_deps="vaapi"
2139 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2140 mpeg4_vdpau_hwaccel_deps="vdpau"
2141 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2142 vc1_d3d11va_hwaccel_deps="d3d11va"
2143 vc1_d3d11va_hwaccel_select="vc1_decoder"
2144 vc1_dxva2_hwaccel_deps="dxva2"
2145 vc1_dxva2_hwaccel_select="vc1_decoder"
2146 vc1_vaapi_hwaccel_deps="vaapi"
2147 vc1_vaapi_hwaccel_select="vc1_decoder"
2148 vc1_vdpau_hwaccel_deps="vdpau"
2149 vc1_vdpau_hwaccel_select="vc1_decoder"
2150 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2151 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2152 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2153 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2154
2155 # parsers
2156 h264_parser_select="h264_decoder"
2157 hevc_parser_select="golomb"
2158 mpegvideo_parser_select="mpegvideo"
2159 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2160 vc1_parser_select="mpegvideo startcode vc1_decoder"
2161
2162 # bitstream_filters
2163 mjpeg2jpeg_bsf_select="jpegtables"
2164
2165 # external libraries
2166 libdcadec_decoder_deps="libdcadec"
2167 libfaac_encoder_deps="libfaac"
2168 libfaac_encoder_select="audio_frame_queue"
2169 libfdk_aac_decoder_deps="libfdk_aac"
2170 libfdk_aac_encoder_deps="libfdk_aac"
2171 libfdk_aac_encoder_select="audio_frame_queue"
2172 libgsm_decoder_deps="libgsm"
2173 libgsm_encoder_deps="libgsm"
2174 libgsm_ms_decoder_deps="libgsm"
2175 libgsm_ms_encoder_deps="libgsm"
2176 libilbc_decoder_deps="libilbc"
2177 libilbc_encoder_deps="libilbc"
2178 libkvazaar_encoder_deps="libkvazaar"
2179 libmp3lame_encoder_deps="libmp3lame"
2180 libmp3lame_encoder_select="audio_frame_queue"
2181 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2182 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2183 libopencore_amrnb_encoder_select="audio_frame_queue"
2184 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2185 libopenh264_encoder_deps="libopenh264"
2186 libopenjpeg_decoder_deps="libopenjpeg"
2187 libopenjpeg_encoder_deps="libopenjpeg"
2188 libopus_decoder_deps="libopus"
2189 libopus_encoder_deps="libopus"
2190 libopus_encoder_select="audio_frame_queue"
2191 libschroedinger_decoder_deps="libschroedinger"
2192 libschroedinger_encoder_deps="libschroedinger"
2193 libspeex_decoder_deps="libspeex"
2194 libspeex_encoder_deps="libspeex"
2195 libspeex_encoder_select="audio_frame_queue"
2196 libtheora_encoder_deps="libtheora"
2197 libtwolame_encoder_deps="libtwolame"
2198 libvo_aacenc_encoder_deps="libvo_aacenc"
2199 libvo_aacenc_encoder_select="audio_frame_queue"
2200 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2201 libvorbis_encoder_deps="libvorbis"
2202 libvorbis_encoder_select="audio_frame_queue"
2203 libvpx_vp8_decoder_deps="libvpx"
2204 libvpx_vp8_encoder_deps="libvpx"
2205 libvpx_vp9_decoder_deps="libvpx"
2206 libvpx_vp9_encoder_deps="libvpx"
2207 libwavpack_encoder_deps="libwavpack"
2208 libwebp_encoder_deps="libwebp"
2209 libx262_encoder_deps="libx262"
2210 libx264_encoder_deps="libx264"
2211 libx265_encoder_deps="libx265"
2212 libxavs_encoder_deps="libxavs"
2213 libxvid_encoder_deps="libxvid"
2214
2215 # demuxers / muxers
2216 ac3_demuxer_select="ac3_parser"
2217 asf_demuxer_select="riffdec"
2218 asf_muxer_select="riffenc"
2219 asf_stream_muxer_select="asf_muxer"
2220 avi_demuxer_select="iso_media riffdec"
2221 avi_muxer_select="riffenc"
2222 avisynth_demuxer_deps="avisynth"
2223 avisynth_demuxer_select="riffdec"
2224 caf_demuxer_select="iso_media riffdec"
2225 dash_muxer_select="mp4_muxer"
2226 dirac_demuxer_select="dirac_parser"
2227 dv_demuxer_select="dvprofile"
2228 dv_muxer_select="dvprofile"
2229 dxa_demuxer_select="riffdec"
2230 eac3_demuxer_select="ac3_parser"
2231 f4v_muxer_select="mov_muxer"
2232 flac_demuxer_select="flac_parser"
2233 hds_muxer_select="flv_muxer"
2234 hls_muxer_select="mpegts_muxer"
2235 ipod_muxer_select="mov_muxer"
2236 ismv_muxer_select="mov_muxer"
2237 matroska_audio_muxer_select="matroska_muxer"
2238 matroska_demuxer_select="iso_media riffdec"
2239 matroska_demuxer_suggest="bzlib lzo zlib"
2240 matroska_muxer_select="iso_media riffenc"
2241 mmf_muxer_select="riffenc"
2242 mov_demuxer_select="iso_media riffdec"
2243 mov_demuxer_suggest="zlib"
2244 mov_muxer_select="iso_media riffenc rtpenc_chain"
2245 mp3_demuxer_select="mpegaudio_parser"
2246 mp4_muxer_select="mov_muxer"
2247 mpegts_demuxer_select="iso_media"
2248 mpegts_muxer_select="adts_muxer latm_muxer"
2249 mpegtsraw_demuxer_select="mpegts_demuxer"
2250 mxf_d10_muxer_select="mxf_muxer"
2251 nut_muxer_select="riffenc"
2252 nuv_demuxer_select="riffdec"
2253 oga_muxer_select="ogg_muxer"
2254 ogg_demuxer_select="dirac_parse"
2255 opus_muxer_select="ogg_muxer"
2256 psp_muxer_select="mov_muxer"
2257 rtp_demuxer_select="sdp_demuxer"
2258 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2259 rtsp_demuxer_select="http_protocol rtpdec"
2260 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2261 sap_demuxer_select="sdp_demuxer"
2262 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2263 sdp_demuxer_select="rtpdec"
2264 smoothstreaming_muxer_select="ismv_muxer"
2265 spdif_muxer_select="aac_parser"
2266 spx_muxer_select="ogg_muxer"
2267 swf_demuxer_suggest="zlib"
2268 tak_demuxer_select="tak_parser"
2269 tg2_muxer_select="mov_muxer"
2270 tgp_muxer_select="mov_muxer"
2271 w64_demuxer_select="wav_demuxer"
2272 wav_demuxer_select="riffdec"
2273 wav_muxer_select="riffenc"
2274 webm_muxer_select="iso_media riffenc"
2275 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2276 wtv_demuxer_select="mpegts_demuxer riffdec"
2277 xmv_demuxer_select="riffdec"
2278 xwma_demuxer_select="riffdec"
2279
2280 # indevs / outdevs
2281 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2282 alsa_outdev_deps="alsa_asoundlib_h"
2283 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2284 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2285 dv1394_indev_deps="dv1394"
2286 dv1394_indev_select="dv_demuxer"
2287 fbdev_indev_deps="linux_fb_h"
2288 jack_indev_deps="jack_jack_h pthreads"
2289 libcdio_indev_deps="libcdio"
2290 libdc1394_indev_deps="libdc1394"
2291 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2292 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2293 pulse_indev_deps="libpulse"
2294 sndio_indev_deps="sndio_h"
2295 sndio_outdev_deps="sndio_h"
2296 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2297 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2298 vfwcap_indev_extralibs="-lavicap32"
2299 x11grab_indev_deps="x11grab"
2300 x11grab_xcb_indev_deps="libxcb"
2301
2302 # protocols
2303 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2304 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2305 ffrtmpcrypt_protocol_select="tcp_protocol"
2306 ffrtmphttp_protocol_deps="!librtmp_protocol"
2307 ffrtmphttp_protocol_select="http_protocol"
2308 gopher_protocol_select="network"
2309 http_protocol_select="tcp_protocol"
2310 httpproxy_protocol_select="tcp_protocol"
2311 https_protocol_select="tls_protocol"
2312 icecast_protocol_select="http_protocol"
2313 librtmp_protocol_deps="librtmp"
2314 librtmpe_protocol_deps="librtmp"
2315 librtmps_protocol_deps="librtmp"
2316 librtmpt_protocol_deps="librtmp"
2317 librtmpte_protocol_deps="librtmp"
2318 mmsh_protocol_select="http_protocol"
2319 mmst_protocol_select="network"
2320 rtmp_protocol_deps="!librtmp_protocol"
2321 rtmp_protocol_select="tcp_protocol"
2322 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2323 rtmps_protocol_deps="!librtmp_protocol"
2324 rtmps_protocol_select="tls_protocol"
2325 rtmpt_protocol_select="ffrtmphttp_protocol"
2326 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2327 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2328 rtp_protocol_select="udp_protocol"
2329 sctp_protocol_deps="struct_sctp_event_subscribe"
2330 sctp_protocol_select="network"
2331 srtp_protocol_select="rtp_protocol"
2332 tcp_protocol_select="network"
2333 tls_gnutls_protocol_deps="gnutls"
2334 tls_gnutls_protocol_select="tcp_protocol"
2335 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2336 tls_openssl_protocol_select="tcp_protocol"
2337 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2338 udp_protocol_select="network"
2339 unix_protocol_deps="sys_un_h"
2340 unix_protocol_select="network"
2341
2342 # filters
2343 blackframe_filter_deps="gpl"
2344 boxblur_filter_deps="gpl"
2345 bs2b_filter_deps="libbs2b"
2346 cropdetect_filter_deps="gpl"
2347 delogo_filter_deps="gpl"
2348 drawtext_filter_deps="libfreetype"
2349 frei0r_filter_deps="frei0r dlopen"
2350 frei0r_filter_extralibs='$ldl'
2351 frei0r_src_filter_deps="frei0r dlopen"
2352 frei0r_src_filter_extralibs='$ldl'
2353 hqdn3d_filter_deps="gpl"
2354 hwupload_cuda_filter_deps="cuda"
2355 interlace_filter_deps="gpl"
2356 ocv_filter_deps="libopencv"
2357 resample_filter_deps="avresample"
2358 scale_filter_deps="swscale"
2359
2360 # examples
2361 avcodec_example_deps="avcodec avutil"
2362 filter_audio_example_deps="avfilter avutil"
2363 metadata_example_deps="avformat avutil"
2364 output_example_deps="avcodec avformat avutil swscale"
2365 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2366 transcode_aac_example_deps="avcodec avformat avresample"
2367
2368 # libraries, in linking order
2369 avcodec_deps="avutil"
2370 avdevice_deps="avformat avcodec avutil"
2371 avfilter_deps="avutil"
2372 avformat_deps="avcodec avutil"
2373 avresample_deps="avutil"
2374 swscale_deps="avutil"
2375
2376 # programs
2377 avconv_deps="avcodec avfilter avformat avresample swscale"
2378 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2379 fps_filter null_filter resample_filter scale_filter
2380 setpts_filter trim_filter"
2381 avplay_deps="avcodec avfilter avformat avresample sdl"
2382 avplay_libs='$sdl_libs'
2383 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2384 avprobe_deps="avcodec avformat"
2385
2386 # documentation
2387 pod2man_deps="doc"
2388 texi2html_deps="doc"
2389
2390 # default parameters
2391
2392 logfile="config.log"
2393
2394 # installation paths
2395 prefix_default="/usr/local"
2396 bindir_default='${prefix}/bin'
2397 datadir_default='${prefix}/share/avconv'
2398 docdir_default='${prefix}/share/doc/libav'
2399 incdir_default='${prefix}/include'
2400 libdir_default='${prefix}/lib'
2401 mandir_default='${prefix}/share/man'
2402 shlibdir_default="$libdir_default"
2403
2404 # toolchain
2405 ar_default="ar"
2406 cc_default="gcc"
2407 host_cc_default="gcc"
2408 cp_f="cp -f"
2409 ln_s="ln -s -f"
2410 nm_default="nm -g"
2411 objformat="elf"
2412 pkg_config_default=pkg-config
2413 ranlib="ranlib"
2414 strip="strip"
2415 yasmexe="yasm"
2416
2417 # machine
2418 arch_default=$(uname -m)
2419 cpu="generic"
2420 intrinsics="none"
2421
2422 # OS
2423 target_os_default=$(tolower $(uname -s))
2424 host_os=$target_os_default
2425
2426 # configurable options
2427 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2428
2429 enable asm
2430 enable debug
2431 enable doc
2432 enable faan faandct faanidct
2433 enable optimizations
2434 enable safe_bitstream_reader
2435 enable static
2436 enable swscale_alpha
2437 enable valgrind_backtrace
2438
2439 # By default, enable only those hwaccels that have no external dependencies.
2440 enable d3d11va dxva2 vda vdpau
2441
2442 # build settings
2443 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2444 LIBPREF="lib"
2445 LIBSUF=".a"
2446 FULLNAME='$(NAME)$(BUILDSUF)'
2447 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2448 SLIBPREF="lib"
2449 SLIBSUF=".so"
2450 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2451 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2452 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2453 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2454 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2455 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2456
2457 asflags_filter=echo
2458 cflags_filter=echo
2459 ldflags_filter=echo
2460
2461 AS_C='-c'
2462 AS_O='-o $@'
2463 CC_C='-c'
2464 CC_E='-E -o $@'
2465 CC_O='-o $@'
2466 OBJCC_C='-c'
2467 OBJCC_E='-E -o $@'
2468 OBJCC_O='-o $@'
2469 LD_O='-o $@'
2470 LD_LIB='-l%'
2471 LD_PATH='-L'
2472 HOSTCC_C='-c'
2473 HOSTCC_E='-E -o $@'
2474 HOSTCC_O='-o $@'
2475 HOSTLD_O='-o $@'
2476
2477 host_libs='-lm'
2478 host_cflags_filter=echo
2479 host_ldflags_filter=echo
2480
2481 target_path='$(CURDIR)'
2482
2483 # since the object filename is not given with the -MM flag, the compiler
2484 # is only able to print the basename, and we must add the path ourselves
2485 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2486 DEPFLAGS='-MM'
2487
2488 # find source path
2489 if test -f configure; then
2490 source_path=.
2491 else
2492 source_path=$(cd $(dirname "$0"); pwd)
2493 echo "$source_path" | grep -q '[[:blank:]]' &&
2494 die "Out of tree builds are impossible with whitespace in source path."
2495 test -e "$source_path/config.h" &&
2496 die "Out of tree builds are impossible with config.h in source dir."
2497 fi
2498
2499 for v in "$@"; do
2500 r=${v#*=}
2501 l=${v%"$r"}
2502 r=$(sh_quote "$r")
2503 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2504 done
2505
2506 find_things(){
2507 thing=$1
2508 pattern=$2
2509 file=$source_path/$3
2510 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2511 }
2512
2513 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2514 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2515 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2516 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2517 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2518 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2519 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2520 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2521 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2522 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2523 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2524
2525 ALL_COMPONENTS="
2526 $BSF_LIST
2527 $DECODER_LIST
2528 $DEMUXER_LIST
2529 $ENCODER_LIST
2530 $FILTER_LIST
2531 $HWACCEL_LIST
2532 $INDEV_LIST
2533 $MUXER_LIST
2534 $OUTDEV_LIST
2535 $PARSER_LIST
2536 $PROTOCOL_LIST
2537 "
2538
2539 for n in $COMPONENT_LIST; do
2540 v=$(toupper ${n%s})_LIST
2541 eval enable \$$v
2542 eval ${n}_if_any="\$$v"
2543 done
2544
2545 enable $ARCH_EXT_LIST
2546
2547 die_unknown(){
2548 echo "Unknown option \"$1\"."
2549 echo "See $0 --help for available options."
2550 exit 1
2551 }
2552
2553 print_3_columns() {
2554 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2555 }
2556
2557 show_list() {
2558 suffix=_$1
2559 shift
2560 echo $* | sed s/$suffix//g | print_3_columns
2561 exit 0
2562 }
2563
2564 rand_list(){
2565 IFS=', '
2566 set -- $*
2567 unset IFS
2568 for thing; do
2569 comp=${thing%:*}
2570 prob=${thing#$comp}
2571 prob=${prob#:}
2572 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2573 echo "prob ${prob:-0.5}"
2574 printf '%s\n' $comp
2575 done
2576 }
2577
2578 do_random(){
2579 action=$1
2580 shift
2581 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2582 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2583 }
2584
2585 for opt do
2586 optval="${opt#*=}"
2587 case "$opt" in
2588 --extra-ldflags=*)
2589 add_ldflags $optval
2590 ;;
2591 --extra-ldexeflags=*)
2592 add_ldexeflags $optval
2593 ;;
2594 --extra-libs=*)
2595 add_extralibs $optval
2596 ;;
2597 --disable-devices)
2598 disable $INDEV_LIST $OUTDEV_LIST
2599 ;;
2600 --enable-debug=*)
2601 debuglevel="$optval"
2602 ;;
2603 --disable-programs)
2604 disable $PROGRAM_LIST
2605 ;;
2606 --disable-everything)
2607 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2608 ;;
2609 --disable-all)
2610 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2611 disable $LIBRARY_LIST $PROGRAM_LIST doc
2612 ;;
2613 --enable-random|--disable-random)
2614 action=${opt%%-random}
2615 do_random ${action#--} $COMPONENT_LIST
2616 ;;
2617 --enable-random=*|--disable-random=*)
2618 action=${opt%%-random=*}
2619 do_random ${action#--} $optval
2620 ;;
2621 --enable-*=*|--disable-*=*)
2622 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2623 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2624 eval list=\$$(toupper $thing)_LIST
2625 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2626 $action $(filter "$name" $list)
2627 ;;
2628 --enable-avserver|--disable-avserver*)
2629 warn "avserver has been removed, the ${opt} option is only"\
2630 "provided for compatibility and will be removed in the future"
2631 ;;
2632 --enable-?*|--disable-?*)
2633 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2634 if is_in $option $COMPONENT_LIST; then
2635 test $action = disable && action=unset
2636 eval $action \$$(toupper ${option%s})_LIST
2637 elif is_in $option $CMDLINE_SELECT; then
2638 $action $option
2639 else
2640 die_unknown $opt
2641 fi
2642 ;;
2643 --list-*)
2644 NAME="${opt#--list-}"
2645 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2646 NAME=${NAME%s}
2647 eval show_list $NAME \$$(toupper $NAME)_LIST
2648 ;;
2649 --help|-h) show_help
2650 ;;
2651 *)
2652 optname="${opt%%=*}"
2653 optname="${optname#--}"
2654 optname=$(echo "$optname" | sed 's/-/_/g')
2655 if is_in $optname $CMDLINE_SET; then
2656 eval $optname='$optval'
2657 elif is_in $optname $CMDLINE_APPEND; then
2658 append $optname "$optval"
2659 else
2660 die_unknown $opt
2661 fi
2662 ;;
2663 esac
2664 done
2665
2666 for e in $env; do
2667 eval "export $e"
2668 done
2669
2670 disabled logging && logfile=/dev/null
2671
2672 # Disable all the library-specific components if the library itself
2673 # is disabled, see AVCODEC_LIST and following _LIST variables.
2674
2675 disable_components(){
2676 disabled ${1} && disable $(
2677 eval components="\$$(toupper ${1})_COMPONENTS"
2678 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2679 )
2680 }
2681
2682 map 'disable_components $v' $LIBRARY_LIST
2683
2684 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2685 set >> $logfile
2686
2687 case "$toolchain" in
2688 *-asan)
2689 cc_default="${toolchain%-asan}"
2690 add_cflags -fsanitize=address
2691 add_ldflags -fsanitize=address
2692 ;;
2693 *-tsan)
2694 cc_default="${toolchain%-tsan}"
2695 add_cflags -fsanitize=thread -pie
2696 add_ldflags -fsanitize=thread -pie
2697 case "$toolchain" in
2698 gcc-tsan)
2699 add_cflags -fPIC
2700 add_ldflags -fPIC
2701 ;;
2702 esac
2703 ;;
2704 *-usan)
2705 cc_default="${toolchain%-usan}"
2706 add_cflags -fsanitize=undefined
2707 add_ldflags -fsanitize=undefined
2708 case "$toolchain" in
2709 clang-usan)
2710 add_cflags -O1
2711 ;;
2712 esac
2713 ;;
2714 valgrind-*)
2715 target_exec_default="valgrind"
2716 case "$toolchain" in
2717 valgrind-massif)
2718 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2719 ;;
2720 valgrind-memcheck)
2721 target_exec_args="--track-origins=yes --leak-check=full"
2722 ;;
2723 esac
2724 ;;
2725 msvc)
2726 # Check whether the current MSVC version needs the C99 converter.
2727 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2728 # support enough of C99 to build libav. Default to the new
2729 # behaviour if the regexp was unable to match anything, since this
2730 # successfully parses the version number of existing supported
2731 # versions that require the converter (MSVC 2010 and 2012).
2732 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2733 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2734 cc_default="cl"
2735 else
2736 cc_default="c99wrap cl"
2737 fi
2738 ld_default="$source_path/compat/windows/mslink"
2739 nm_default="dumpbin -symbols"
2740 ar_default="lib"
2741 case "$arch" in
2742 arm*)
2743 as_default="armasm"
2744 ;;
2745 esac
2746 target_os_default="win32"
2747 # Use a relative path for TMPDIR. This makes sure all the
2748 # ffconf temp files are written with a relative path, avoiding
2749 # issues with msys/win32 path conversion for MSVC parameters
2750 # such as -Fo<file> or -out:<file>.
2751 TMPDIR=.
2752 ;;
2753 icl)
2754 cc_default="icl"
2755 ld_default="xilink"
2756 nm_default="dumpbin -symbols"
2757 ar_default="xilib"
2758 target_os_default="win32"
2759 TMPDIR=.
2760 ;;
2761 gcov)
2762 add_cflags -fprofile-arcs -ftest-coverage
2763 add_ldflags -fprofile-arcs -ftest-coverage
2764 ;;
2765 hardened)
2766 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2767 add_cflags -fno-strict-overflow -fstack-protector-all
2768 add_ldflags -Wl,-z,relro -Wl,-z,now
2769 ;;
2770 ?*)
2771 die "Unknown toolchain $toolchain"
2772 ;;
2773 esac
2774
2775 test -n "$cross_prefix" && enable cross_compile
2776
2777 if enabled cross_compile; then
2778 test -n "$arch" && test -n "$target_os" ||
2779 die "Must specify target arch and OS when cross-compiling"
2780 fi
2781
2782 ar_default="${cross_prefix}${ar_default}"
2783 cc_default="${cross_prefix}${cc_default}"
2784 occ_default="${cross_prefix}${occ_default}"
2785 nm_default="${cross_prefix}${nm_default}"
2786 pkg_config_default="${cross_prefix}${pkg_config_default}"
2787 ranlib="${cross_prefix}${ranlib}"
2788 strip="${cross_prefix}${strip}"
2789
2790 sysinclude_default="${sysroot}/usr/include"
2791
2792 set_default arch cc pkg_config sysinclude target_exec target_os
2793 enabled cross_compile || host_cc_default=$cc
2794 set_default host_cc
2795
2796 if ! $pkg_config --version >/dev/null 2>&1; then
2797 warn "$pkg_config not found, library detection may fail."
2798 pkg_config=false
2799 fi
2800
2801 exesuf() {
2802 case $1 in
2803 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2804 esac
2805 }
2806
2807 EXESUF=$(exesuf $target_os)
2808 HOSTEXESUF=$(exesuf $host_os)
2809
2810 # set temporary file name
2811 : ${TMPDIR:=$TEMPDIR}
2812 : ${TMPDIR:=$TMP}
2813 : ${TMPDIR:=/tmp}
2814
2815 if ! check_cmd mktemp -u XXXXXX; then
2816 # simple replacement for missing mktemp
2817 # NOT SAFE FOR GENERAL USE
2818 mktemp(){
2819 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2820 }
2821 fi
2822
2823 tmpfile(){
2824 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2825 (set -C; exec > $tmp) 2>/dev/null ||
2826 die "Unable to create temporary file in $TMPDIR."
2827 append TMPFILES $tmp
2828 eval $1=$tmp
2829 }
2830
2831 trap 'rm -f -- $TMPFILES' EXIT
2832
2833 tmpfile TMPASM .asm
2834 tmpfile TMPC .c
2835 tmpfile TMPE $EXESUF
2836 tmpfile TMPH .h
2837 tmpfile TMPO .o
2838 tmpfile TMPS .S
2839 tmpfile TMPSH .sh
2840 tmpfile TMPV .ver
2841
2842 unset -f mktemp
2843
2844 chmod +x $TMPE
2845
2846 # make sure we can execute files in $TMPDIR
2847 cat > $TMPSH 2>> $logfile <<EOF
2848 #! /bin/sh
2849 EOF
2850 chmod +x $TMPSH >> $logfile 2>&1
2851 if ! $TMPSH >> $logfile 2>&1; then
2852 cat <<EOF
2853 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2854 variable to another directory and make sure that it is not mounted noexec.
2855 EOF
2856 die "Sanity test failed."
2857 fi
2858
2859 armasm_flags(){
2860 for flag; do
2861 case $flag in
2862 # Filter out MSVC cl.exe options from cflags that shouldn't
2863 # be passed to gas-preprocessor
2864 -M[TD]*) ;;
2865 *) echo $flag ;;
2866 esac
2867 done
2868 }
2869
2870 ccc_flags(){
2871 for flag; do
2872 case $flag in
2873 -std=c99) echo -c99 ;;
2874 -mcpu=*) echo -arch ${flag#*=} ;;
2875 -mieee) echo -ieee ;;
2876 -O*|-fast) echo $flag ;;
2877 -fno-math-errno) echo -assume nomath_errno ;;
2878 -g) echo -g3 ;;
2879 -Wall) echo -msg_enable level2 ;;
2880 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2881 -Wl,*) echo $flag ;;
2882 -f*|-W*) ;;
2883 *) echo $flag ;;
2884 esac
2885 done
2886 }
2887
2888 cparser_flags(){
2889 for flag; do
2890 case $flag in
2891 -Wno-switch) echo -Wno-switch-enum ;;
2892 -Wno-format-zero-length) ;;
2893 -Wdisabled-optimization) ;;
2894 -Wno-pointer-sign) echo -Wno-other ;;
2895 *) echo $flag ;;
2896 esac
2897 done
2898 }
2899
2900 msvc_common_flags(){
2901 for flag; do
2902 case $flag in
2903 # In addition to specifying certain flags under the compiler
2904 # specific filters, they must be specified here as well or else the
2905 # generic catch all at the bottom will print the original flag.
2906 -Wall) ;;
2907 -std=c99) ;;
2908 # Common flags
2909 -fomit-frame-pointer) ;;
2910 -g) echo -Z7 ;;
2911 -fno-math-errno) ;;
2912 -fno-common) ;;
2913 -fno-signed-zeros) ;;
2914 -fPIC) ;;
2915 -mthumb) ;;
2916 -march=*) ;;
2917 -lz) echo zlib.lib ;;
2918 -lavifil32) echo vfw32.lib ;;
2919 -lavicap32) echo vfw32.lib user32.lib ;;
2920 -lx264) echo libx264.lib ;;
2921 -l*) echo ${flag#-l}.lib ;;
2922 -L*) echo -libpath:${flag#-L} ;;
2923 *) echo $flag ;;
2924 esac
2925 done
2926 }
2927
2928 msvc_flags(){
2929 msvc_common_flags "$@"
2930 for flag; do
2931 case $flag in
2932 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2933 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2934 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2935 -wd4273 -wd4554 -wd4701 ;;
2936 esac
2937 done
2938 }
2939
2940 icl_flags(){
2941 msvc_common_flags "$@"
2942 for flag; do
2943 case $flag in
2944 # Despite what Intel's documentation says -Wall, which is supported
2945 # on Windows, does enable remarks so disable them here.
2946 -Wall) echo $flag -Qdiag-disable:remark ;;
2947 -std=c99) echo -Qstd=c99 ;;
2948 esac
2949 done
2950 }
2951
2952 pgi_flags(){
2953 for flag; do
2954 case $flag in
2955 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2956 -fomit-frame-pointer) echo -Mnoframe ;;
2957 -g) echo -gopt ;;
2958 *) echo $flag ;;
2959 esac
2960 done
2961 }
2962
2963 suncc_flags(){
2964 for flag; do
2965 case $flag in
2966 -march=*|-mcpu=*)
2967 case "${flag#*=}" in
2968 native) echo -xtarget=native ;;
2969 v9|niagara) echo -xarch=sparc ;;
2970 ultrasparc) echo -xarch=sparcvis ;;
2971 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2972 i586|pentium) echo -xchip=pentium ;;
2973 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2974 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2975 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2976 pentium4*) echo -xtarget=pentium4 ;;
2977 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2978 *-sse3) echo -xarch=sse3 ;;
2979 core2) echo -xarch=ssse3 -xchip=core2 ;;
2980 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2981 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2982 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2983 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2984 k8|opteron|athlon64|athlon-fx)
2985 echo -xarch=sse2a ;;
2986 athlon*) echo -xarch=pentium_proa ;;
2987 esac
2988 ;;
2989 -std=c99) echo -xc99 ;;
2990 -fomit-frame-pointer) echo -xregs=frameptr ;;
2991 -fPIC) echo -KPIC -xcode=pic32 ;;
2992 -W*,*) echo $flag ;;
2993 -f*-*|-W*|-mimpure-text) ;;
2994 -shared) echo -G ;;
2995 *) echo $flag ;;
2996 esac
2997 done
2998 }
2999
3000 tms470_flags(){
3001 for flag; do
3002 case $flag in
3003 -march=*|-mcpu=*)
3004 case "${flag#*=}" in
3005 armv7-a|cortex-a*) echo -mv=7a8 ;;
3006 armv7-r|cortex-r*) echo -mv=7r4 ;;
3007 armv7-m|cortex-m*) echo -mv=7m3 ;;
3008 armv6*|arm11*) echo -mv=6 ;;
3009 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3010 echo -mv=5e ;;
3011 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3012 esac
3013 ;;
3014 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3015 -mfpu=vfp) echo --float_support=vfpv2 ;;
3016 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3017 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3018 -msoft-float) echo --float_support=vfplib ;;
3019 -O[0-3]|-mf=*) echo $flag ;;
3020 -g) echo -g -mn ;;
3021 -pds=*) echo $flag ;;
3022 -D*|-I*) echo $flag ;;
3023 --gcc|--abi=*) echo $flag ;;
3024 -me) echo $flag ;;
3025 esac
3026 done
3027 }
3028
3029 probe_cc(){
3030 pfx=$1
3031 _cc=$2
3032
3033 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3034 unset _ld_o _ldflags _ld_lib _ld_path
3035 unset _depflags _DEPCMD _DEPFLAGS
3036 _flags_filter=echo
3037
3038 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3039 _type=llvm_gcc
3040 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3041 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3042 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3043 _cflags_speed='-O3'
3044 _cflags_size='-Os'
3045 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3046 _type=gcc
3047 gcc_version=$($_cc --version | head -n1)
3048 gcc_basever=$($_cc -dumpversion)
3049 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3050 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3051 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3052 if ! $_cc -dumpversion | grep -q '^2\.'; then
3053 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3054 fi
3055 _cflags_speed='-O3'
3056 _cflags_size='-Os'
3057 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3058 _type=icc
3059 _ident=$($_cc --version | head -n1)
3060 _depflags='-MMD'
3061 _cflags_speed='-O3'
3062 _cflags_size='-Os'
3063 _cflags_noopt='-O1'
3064 elif $_cc -v 2>&1 | grep -q xlc; then
3065 _type=xlc
3066 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3067 _cflags_speed='-O5'
3068 _cflags_size='-O5 -qcompact'
3069 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3070 _type=ccc
3071 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3072 _DEPFLAGS='-M'
3073 _cflags_speed='-fast'
3074 _cflags_size='-O1'
3075 _flags_filter=ccc_flags
3076 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3077 test -d "$sysroot" || die "No valid sysroot specified."
3078 _type=armcc
3079 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3080 armcc_conf="$PWD/armcc.conf"
3081 $_cc --arm_linux_configure \
3082 --arm_linux_config_file="$armcc_conf" \
3083 --configure_sysroot="$sysroot" \
3084 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3085 die "Error creating armcc configuration file."
3086 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3087 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3088 as_default="${cross_prefix}gcc"
3089 _depflags='-MMD'
3090 _cflags_speed='-O3'
3091 _cflags_size='-Os'
3092 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3093 _type=tms470
3094 _ident=$($_cc -version | head -n1 | tr -s ' ')
3095 _flags='--gcc --abi=eabi -me'
3096 _cc_e='-ppl -fe=$@'
3097 _cc_o='-fe=$@'
3098 _depflags='-ppa -ppd=$(@:.o=.d)'
3099 _cflags_speed='-O3 -mf=5'
3100 _cflags_size='-O3 -mf=2'
3101 _flags_filter=tms470_flags
3102 elif $_cc -v 2>&1 | grep -q clang; then
3103 _type=clang
3104 _ident=$($_cc --version 2>/dev/null | head -n1)
3105 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3106 _cflags_speed='-O3'
3107 _cflags_size='-Os'
3108 elif $_cc -V 2>&1 | grep -q Sun; then
3109 _type=suncc
3110 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3111 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3112 _DEPFLAGS='-xM1 -xc99'
3113 _ldflags='-std=c99'
3114 _cflags_speed='-O5'
3115 _cflags_size='-O5 -xspace'
3116 _flags_filter=suncc_flags
3117 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3118 _type=pathscale
3119 _ident=$($_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'
3124 elif $_cc -v 2>&1 | grep -q Open64; then
3125 _type=open64
3126 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3127 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3128 _cflags_speed='-O2'
3129 _cflags_size='-Os'
3130 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3131 elif $_cc -V 2>&1 | grep -q Portland; then
3132 _type=pgi
3133 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3134 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3135 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3136 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3137 _cflags_noopt="-O1"
3138 _flags_filter=pgi_flags
3139 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3140 _type=armasm
3141 _ident=$($_cc | head -n1)
3142 # 4509: "This form of conditional instruction is deprecated"
3143 _flags="-nologo -ignore 4509"
3144 _flags_filter=armasm_flags
3145 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3146 _type=msvc
3147 _ident=$($_cc 2>&1 | head -n1)
3148 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3149 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3150 _cflags_speed="-O2"
3151 _cflags_size="-O1"
3152 if $_cc -nologo- 2>&1 | grep -q Linker; then
3153 _ld_o='-out:$@'
3154 else
3155 _ld_o='-Fe$@'
3156 fi
3157 _cc_o='-Fo$@'
3158 _cc_e='-P -Fi$@'
3159 _flags_filter=msvc_flags
3160 _ld_lib='lib%.a'
3161 _ld_path='-libpath:'
3162 _flags='-nologo'
3163 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3164 elif $_cc 2>&1 | grep -q Intel; then
3165 _type=icl
3166 _ident=$($_cc 2>&1 | head -n1)
3167 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3168 # Not only is O3 broken on 13.x+ but it is slower on all previous
3169 # versions (tested) as well.
3170 _cflags_speed="-O2"
3171 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3172 if $_cc 2>&1 | grep -q Linker; then
3173 _ld_o='-out:$@'
3174 else
3175 _ld_o='-Fe$@'
3176 fi
3177 _cc_o='-Fo$@'
3178 _cc_e='-P'
3179 _flags_filter=icl_flags
3180 _ld_lib='lib%.a'
3181 _ld_path='-libpath:'
3182 # -Qdiag-error to make icl error when seeing certain unknown arguments
3183 _flags='-nologo -Qdiag-error:4044,10157'
3184 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3185 # with MSVC which enables it by default.
3186 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3187 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3188 _type=cparser
3189 _ident=$($_cc --version | head -n1)
3190 _depflags='-MMD'
3191 _cflags_speed='-O4'
3192 _cflags_size='-O2'
3193 _flags_filter=cparser_flags
3194 fi
3195
3196 eval ${pfx}_type=\$_type
3197 eval ${pfx}_ident=\$_ident
3198 }
3199
3200 set_ccvars(){
3201 eval ${1}_C=\${_cc_c-\${${1}_C}}
3202 eval ${1}_E=\${_cc_e-\${${1}_E}}
3203 eval ${1}_O=\${_cc_o-\${${1}_O}}
3204
3205 if [ -n "$_depflags" ]; then
3206 eval ${1}_DEPFLAGS=\$_depflags
3207 else
3208 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3209 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3210 eval DEP${1}FLAGS=\$_flags
3211 fi
3212 }
3213
3214 probe_cc cc "$cc"
3215 cflags_filter=$_flags_filter
3216 cflags_speed=$_cflags_speed
3217 cflags_size=$_cflags_size
3218 cflags_noopt=$_cflags_noopt
3219 add_cflags $_flags $_cflags
3220 cc_ldflags=$_ldflags
3221 set_ccvars CC
3222
3223 probe_cc hostcc "$host_cc"
3224 host_cflags_filter=$_flags_filter
3225 add_host_cflags $_flags $_cflags
3226 set_ccvars HOSTCC
3227
3228 test -n "$cc_type" && enable $cc_type ||
3229 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3230
3231 : ${as_default:=$cc}
3232 : ${objcc_default:=$cc}
3233 : ${dep_cc_default:=$cc}
3234 : ${ld_default:=$cc}
3235 : ${host_ld_default:=$host_cc}
3236 set_default ar as objcc dep_cc ld host_ld
3237
3238 probe_cc as "$as"
3239 asflags_filter=$_flags_filter
3240 add_asflags $_flags $_cflags
3241 set_ccvars AS
3242
3243 probe_cc objcc "$objcc"
3244 objcflags_filter=$_flags_filter
3245 add_objcflags $_flags $_cflags
3246 set_ccvars OBJC
3247
3248 probe_cc ld "$ld"
3249 ldflags_filter=$_flags_filter
3250 add_ldflags $_flags $_ldflags
3251 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3252 LD_O=${_ld_o-$LD_O}
3253 LD_LIB=${_ld_lib-$LD_LIB}
3254 LD_PATH=${_ld_path-$LD_PATH}
3255
3256 probe_cc hostld "$host_ld"
3257 host_ldflags_filter=$_flags_filter
3258 add_host_ldflags $_flags $_ldflags
3259 HOSTLD_O=${_ld_o-$HOSTLD_O}
3260
3261 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3262 probe_cc depcc "$dep_cc"
3263 CCDEP=${_DEPCMD:-$DEPCMD}
3264 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3265 DEPCCFLAGS=$_flags
3266 fi
3267
3268 if $ar 2>&1 | grep -q Microsoft; then
3269 arflags="-nologo"
3270 ar_o='-out:$@'
3271 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3272 arflags="rq"
3273 ar_o='$@'
3274 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3275 arflags='-Xany -r -c'
3276 ar_o='$@'
3277 else
3278 arflags="rc"
3279 ar_o='$@'
3280 fi
3281
3282 add_cflags $extra_cflags
3283 add_objcflags $extra_objcflags
3284 add_asflags $extra_cflags
3285
3286 if test -n "$sysroot"; then
3287 case "$cc_type" in
3288 gcc|llvm_gcc|clang)
3289 add_cppflags --sysroot="$sysroot"
3290 add_ldflags --sysroot="$sysroot"
3291 ;;
3292 tms470)
3293 add_cppflags -I"$sysinclude"
3294 add_ldflags --sysroot="$sysroot"
3295 ;;
3296 esac
3297 fi
3298
3299 if test "$cpu" = host; then
3300 enabled cross_compile &&
3301 die "--cpu=host makes no sense when cross-compiling."
3302
3303 case "$cc_type" in
3304 gcc|llvm_gcc)
3305 check_native(){
3306 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3307 sed -n "/cc1.*$1=/{
3308 s/.*$1=\\([^ ]*\\).*/\\1/
3309 p
3310 q
3311 }" $TMPE
3312 }
3313 cpu=$(check_native -march || check_native -mcpu)
3314 ;;
3315 esac
3316
3317 test "${cpu:-host}" = host &&
3318 die "--cpu=host not supported with compiler $cc"
3319 fi
3320
3321 # Deal with common $arch aliases
3322 case "$arch" in
3323 aarch64|arm64)
3324 arch="aarch64"
3325 ;;
3326 arm*)
3327 arch="arm"
3328 ;;
3329 mips*|IP*)
3330 case "$arch" in
3331 *el)
3332 add_cppflags -EL
3333 add_ldflags -EL
3334 ;;
3335 *eb)
3336 add_cppflags -EB
3337 add_ldflags -EB
3338 ;;
3339 esac
3340 arch="mips"
3341 ;;
3342 parisc*|hppa*)
3343 arch="parisc"
3344 ;;
3345 "Power Macintosh"|ppc*|powerpc*)
3346 arch="ppc"
3347 ;;
3348 s390|s390x)
3349 arch="s390"
3350 ;;
3351 sh4|sh)
3352 arch="sh4"
3353 ;;
3354 sun4u|sparc*)
3355 arch="sparc"
3356 ;;
3357 tilegx|tile-gx)
3358 arch="tilegx"
3359 ;;
3360 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3361 arch="x86"
3362 ;;
3363 esac
3364
3365 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3366 enable $arch
3367
3368 # Add processor-specific flags
3369 if enabled aarch64; then
3370
3371 case $cpu in
3372 armv*)
3373 cpuflags="-march=$cpu"
3374 ;;
3375 *)
3376 cpuflags="-mcpu=$cpu"
3377 ;;
3378 esac
3379
3380 elif enabled alpha; then
3381
3382 cpuflags="-mcpu=$cpu"
3383
3384 elif enabled arm; then
3385
3386 check_arm_arch() {
3387 check_cpp_condition stddef.h \
3388 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3389 $cpuflags
3390 }
3391
3392 probe_arm_arch() {
3393 if check_arm_arch 4; then echo armv4;
3394 elif check_arm_arch 4T; then echo armv4t;
3395 elif check_arm_arch 5; then echo armv5;
3396 elif check_arm_arch 5E; then echo armv5e;
3397 elif check_arm_arch 5T; then echo armv5t;
3398 elif check_arm_arch 5TE; then echo armv5te;
3399 elif check_arm_arch 5TEJ; then echo armv5te;
3400 elif check_arm_arch 6; then echo armv6;
3401 elif check_arm_arch 6J; then echo armv6j;
3402 elif check_arm_arch 6K; then echo armv6k;
3403 elif check_arm_arch 6Z; then echo armv6z;
3404 elif check_arm_arch 6ZK; then echo armv6zk;
3405 elif check_arm_arch 6T2; then echo armv6t2;
3406 elif check_arm_arch 7; then echo armv7;
3407 elif check_arm_arch 7A 7_A; then echo armv7-a;
3408 elif check_arm_arch 7S; then echo armv7-a;
3409 elif check_arm_arch 7R 7_R; then echo armv7-r;
3410 elif check_arm_arch 7M 7_M; then echo armv7-m;
3411 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3412 elif check_arm_arch 8A 8_A; then echo armv8-a;
3413 fi
3414 }
3415
3416 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3417
3418 case $cpu in
3419 armv*)
3420 cpuflags="-march=$cpu"
3421 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3422 ;;
3423 *)
3424 cpuflags="-mcpu=$cpu"
3425 case $cpu in
3426 cortex-a*) subarch=armv7a ;;
3427 cortex-r*) subarch=armv7r ;;
3428 cortex-m*) enable thumb; subarch=armv7m ;;
3429 arm11*) subarch=armv6 ;;
3430 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3431 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3432 *) subarch=$(probe_arm_arch) ;;
3433 esac
3434 ;;
3435 esac
3436
3437 case "$subarch" in
3438 armv5t*) enable fast_clz ;;
3439 armv[6-8]*) enable fast_clz fast_unaligned ;;
3440 esac
3441
3442 elif enabled avr32; then
3443
3444 case $cpu in
3445 ap7[02]0[0-2])
3446 subarch="avr32_ap"
3447 cpuflags="-mpart=$cpu"
3448 ;;
3449 ap)
3450 subarch="avr32_ap"
3451 cpuflags="-march=$cpu"
3452 ;;
3453 uc3[ab]*)
3454 subarch="avr32_uc"
3455 cpuflags="-mcpu=$cpu"
3456 ;;
3457 uc)
3458 subarch="avr32_uc"
3459 cpuflags="-march=$cpu"
3460 ;;
3461 esac
3462
3463 elif enabled bfin; then
3464
3465 cpuflags="-mcpu=$cpu"
3466
3467 elif enabled mips; then
3468
3469 cpuflags="-march=$cpu"
3470
3471 elif enabled ppc; then
3472
3473 disable ldbrx
3474
3475 case $(tolower $cpu) in
3476 601|ppc601|powerpc601)
3477 cpuflags="-mcpu=601"
3478 disable altivec
3479 ;;
3480 603*|ppc603*|powerpc603*)
3481 cpuflags="-mcpu=603"
3482 disable altivec
3483 ;;
3484 604*|ppc604*|powerpc604*)
3485 cpuflags="-mcpu=604"
3486 disable altivec
3487 ;;
3488 g3|75*|ppc75*|powerpc75*)
3489 cpuflags="-mcpu=750"
3490 disable altivec
3491 ;;
3492 g4|745*|ppc745*|powerpc745*)
3493 cpuflags="-mcpu=7450"
3494 disable vsx
3495 ;;
3496 74*|ppc74*|powerpc74*)
3497 cpuflags="-mcpu=7400"
3498 disable vsx
3499 ;;
3500 g5|970|ppc970|powerpc970)
3501 cpuflags="-mcpu=970"
3502 disable vsx
3503 ;;
3504 power[3-6]*)
3505 cpuflags="-mcpu=$cpu"
3506 disable vsx
3507 ;;
3508 power[7-8]*)
3509 cpuflags="-mcpu=$cpu"
3510 enable ldbrx
3511 ;;
3512 cell)
3513 cpuflags="-mcpu=cell"
3514 enable ldbrx
3515 disable vsx
3516 ;;
3517 e500mc)
3518 cpuflags="-mcpu=e500mc"
3519 disable altivec
3520 ;;
3521 e500v2)
3522 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3523 disable altivec
3524 disable dcbzl
3525 ;;
3526 e500)
3527 cpuflags="-mcpu=8540 -mhard-float"
3528 disable altivec
3529 disable dcbzl
3530 ;;
3531 esac
3532
3533 elif enabled sparc; then
3534
3535 case $cpu in
3536 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3537 cpuflags="-mcpu=$cpu"
3538 ;;
3539 ultrasparc*|niagara[234])
3540 cpuflags="-mcpu=$cpu"
3541 ;;
3542 esac
3543
3544 elif enabled x86; then
3545
3546 case $cpu in
3547 i[345]86|pentium)
3548 cpuflags="-march=$cpu"
3549 disable i686
3550 disable mmx
3551 ;;
3552 # targets that do NOT support nopl and conditional mov (cmov)
3553 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3554 cpuflags="-march=$cpu"
3555 disable i686
3556 ;;
3557 # targets that do support nopl and conditional mov (cmov)
3558 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3559 cpuflags="-march=$cpu"
3560 enable i686
3561 enable fast_cmov
3562 ;;
3563 # targets that do support conditional mov but on which it's slow
3564 pentium4|pentium4m|prescott|nocona)
3565 cpuflags="-march=$cpu"
3566 enable i686
3567 disable fast_cmov
3568 ;;
3569 esac
3570
3571 fi
3572
3573 if [ "$cpu" != generic ]; then
3574 add_cflags $cpuflags
3575 add_asflags $cpuflags
3576 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3577 fi
3578
3579 # compiler sanity check
3580 check_exec <<EOF
3581 int main(void){ return 0; }
3582 EOF
3583 if test "$?" != 0; then
3584 echo "$cc is unable to create an executable file."
3585 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3586 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3587 echo "Only do this if you know what cross compiling means."
3588 fi
3589 die "C compiler test failed."
3590 fi
3591
3592 add_cppflags -D_ISOC99_SOURCE
3593 check_cflags -std=c99
3594 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3595 #include <stdlib.h>
3596 EOF
3597 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3598 #include <stdlib.h>
3599 EOF
3600
3601 add_host_cppflags -D_ISOC99_SOURCE
3602 check_host_cflags -std=c99
3603 check_host_cflags -Wall
3604 check_host_cflags -O3
3605
3606 check_64bit(){
3607 arch32=$1
3608 arch64=$2
3609 expr=$3
3610 check_code cc "" "int test[2*($expr) - 1]" &&
3611 subarch=$arch64 || subarch=$arch32
3612 }
3613
3614 case "$arch" in
3615 aarch64|alpha|ia64)
3616 spic=$shared
3617 ;;
3618 mips)
3619 check_64bit mips mips64 '_MIPS_SIM > 1'
3620 spic=$shared
3621 ;;
3622 parisc)
3623 check_64bit parisc parisc64 'sizeof(void *) > 4'
3624 spic=$shared
3625 ;;
3626 ppc)
3627 check_64bit ppc ppc64 'sizeof(void *) > 4'
3628 spic=$shared
3629 ;;
3630 s390)
3631 check_64bit s390 s390x 'sizeof(void *) > 4'
3632 spic=$shared
3633 ;;
3634 sparc)
3635 check_64bit sparc sparc64 'sizeof(void *) > 4'
3636 spic=$shared
3637 ;;
3638 x86)
3639 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3640 if test "$subarch" = "x86_64"; then
3641 spic=$shared
3642 fi
3643 ;;
3644 esac
3645
3646 enable $subarch
3647 enabled spic && enable_weak pic
3648
3649 # OS specific
3650 case $target_os in
3651 aix)
3652 SHFLAGS=-shared
3653 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3654 enabled shared && add_ldflags -Wl,-brtl
3655 ;;
3656 android)
3657 disable symver
3658 enable section_data_rel_ro
3659 SLIB_INSTALL_NAME='$(SLIBNAME)'
3660 SLIB_INSTALL_LINKS=
3661 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3662 ;;
3663 haiku)
3664 prefix_default="/boot/common"
3665 network_extralibs="-lnetwork"
3666 host_libs=
3667 ;;
3668 sunos)
3669 SHFLAGS='-shared -Wl,-h,$$(@F)'
3670 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3671 network_extralibs="-lsocket -lnsl"
3672 # When using suncc to build, the Solaris linker will mark
3673 # an executable with each instruction set encountered by
3674 # the Solaris assembler. As our libraries contain their own
3675 # guards for processor-specific code, instead suppress
3676 # generation of the HWCAPS ELF section on Solaris x86 only.
3677 enabled_all suncc x86 &&
3678 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3679 add_ldflags -Wl,-M,mapfile
3680 nm_default='nm -P -g'
3681 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3682 ;;
3683 netbsd)
3684 disable symver
3685 oss_indev_extralibs="-lossaudio"
3686 oss_outdev_extralibs="-lossaudio"
3687 ;;
3688 openbsd|bitrig)
3689 disable symver
3690 SHFLAGS='-shared'
3691 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3692 SLIB_INSTALL_LINKS=
3693 oss_indev_extralibs="-lossaudio"
3694 oss_outdev_extralibs="-lossaudio"
3695 ;;
3696 dragonfly)
3697 disable symver
3698 ;;
3699 freebsd)
3700 ;;
3701 bsd/os)
3702 add_extralibs -lpoll -lgnugetopt
3703 ;;
3704 darwin)
3705 enabled ppc && add_asflags -force_cpusubtype_ALL
3706 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3707 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3708 add_ldflags -Wl,-dynamic,-search_paths_first
3709 SLIBSUF=".dylib"
3710 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3711 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3712 objformat="macho"
3713 enabled x86_64 && objformat="macho64"
3714 enabled_any pic shared ||
3715 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3716 ;;
3717 msys*)
3718 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3719 ;;
3720 mingw32*|mingw64*)
3721 if test $target_os = "mingw32ce"; then
3722 disable network
3723 else
3724 target_os=mingw32
3725 fi
3726 LIBTARGET=i386
3727 if enabled x86_64; then
3728 LIBTARGET="i386:x86-64"
3729 elif enabled arm; then
3730 LIBTARGET=arm-wince
3731 fi
3732 check_ldflags -Wl,--nxcompat
3733 check_ldflags -Wl,--dynamicbase
3734 shlibdir_default="$bindir_default"
3735 SLIBPREF=""
3736 SLIBSUF=".dll"
3737 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3738 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3739 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3740 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3741 SLIB_INSTALL_LINKS=
3742 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3743 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3744 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3745 objformat="win32"
3746 dlltool="${cross_prefix}dlltool"
3747 ranlib=:
3748 enable dos_paths
3749 ;;
3750 win32|win64)
3751 disable symver
3752 if enabled shared; then
3753 # Link to the import library instead of the normal static library
3754 # for shared libs.
3755 LD_LIB='%.lib'
3756 # Cannot build both shared and static libs with MSVC or icl.
3757 disable static
3758 fi
3759 shlibdir_default="$bindir_default"
3760 SLIBPREF=""
3761 SLIBSUF=".dll"
3762 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3763 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3764 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3765 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3766 SLIB_INSTALL_LINKS=
3767 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3768 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3769 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3770 objformat="win32"
3771 ranlib=:
3772 enable dos_paths
3773 ;;
3774 cygwin*)
3775 target_os=cygwin
3776 shlibdir_default="$bindir_default"
3777 SLIBPREF="cyg"
3778 SLIBSUF=".dll"
3779 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3780 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3781 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3782 SLIB_INSTALL_LINKS=
3783 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3784 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3785 objformat="win32"
3786 enable dos_paths
3787 ;;
3788 *-dos|freedos|opendos)
3789 network_extralibs="-lsocket"
3790 objformat="coff"
3791 enable dos_paths
3792 add_cppflags -U__STRICT_ANSI__
3793 ;;
3794 linux)
3795 enable dv1394
3796 enable section_data_rel_ro
3797 ;;
3798 irix*)
3799 target_os=irix
3800 ranlib="echo ignoring ranlib"
3801 ;;
3802 os/2*)
3803 ln_s="cp -f"
3804 objformat="aout"
3805 add_cppflags -D_GNU_SOURCE
3806 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3807 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3808 LIBSUF="_s.a"
3809 SLIBPREF=""
3810 SLIBSUF=".dll"
3811 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3812 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3813 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3814 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3815 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3816 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3817 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3818 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3819 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3820 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3821 enable dos_paths
3822 ;;
3823 gnu/kfreebsd)
3824 add_cppflags -D_BSD_SOURCE
3825 ;;
3826 gnu)
3827 ;;
3828 qnx)
3829 add_cppflags -D_QNX_SOURCE
3830 network_extralibs="-lsocket"
3831 ;;
3832 symbian)
3833 SLIBSUF=".dll"
3834 enable dos_paths
3835 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3836 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3837 add_ldflags -Wl,--target1-abs,--no-undefined \
3838 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3839 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3840 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3841 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3842 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3843 ;;
3844 osf1)
3845 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3846 ;;
3847 minix)
3848 ;;
3849 plan9)
3850 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3851 -D_REENTRANT_SOURCE \
3852 -D_RESEARCH_SOURCE \
3853 -DFD_SETSIZE=96 \
3854 -DHAVE_SOCK_OPTS
3855 add_compat strtod.o strtod=avpriv_strtod
3856 network_extralibs='-lbsd'
3857 exeobjs=compat/plan9/main.o
3858 cp_f='cp'
3859 ;;
3860 none)
3861 ;;
3862 *)
3863 die "Unknown OS '$target_os'."
3864 ;;
3865 esac
3866
3867 # determine libc flavour
3868
3869 probe_libc(){
3870 pfx=$1
3871 pfx_no_=${pfx%_}
3872 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3873 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3874 eval ${pfx}libc_type=uclibc
3875 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3876 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3877 eval ${pfx}libc_type=glibc
3878 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3879 # MinGW headers can be installed on Cygwin, so check for newlib first.
3880 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3881 eval ${pfx}libc_type=newlib
3882 add_${pfx}cppflags -U__STRICT_ANSI__
3883 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3884 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3885 eval ${pfx}libc_type=mingw64
3886 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3887 eval test \$${pfx_no_}cc_type = "gcc" &&
3888 add_${pfx}cppflags -D__printf__=__gnu_printf__
3889 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3890 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3891 eval ${pfx}libc_type=mingw32
3892 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3893 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3894 die "ERROR: MinGW32 runtime version must be >= 3.15."
3895 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3896 eval test \$${pfx_no_}cc_type = "gcc" &&
3897 add_${pfx}cppflags -D__printf__=__gnu_printf__
3898 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3899 eval ${pfx}libc_type=msvcrt
3900 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3901 if [ "$pfx" = host_ ]; then
3902 add_host_cppflags -Dsnprintf=_snprintf
3903 else
3904 add_compat strtod.o strtod=avpriv_strtod
3905 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3906 _snprintf=avpriv_snprintf \
3907 vsnprintf=avpriv_vsnprintf
3908 fi
3909 fi
3910 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3911 # 0x601 by default unless something else is set by the user.
3912 # This can easily lead to us detecting functions only present
3913 # in such new versions and producing binaries requiring windows 7.0.
3914 # Therefore explicitly set the default to XP unless the user has
3915 # set something else on the command line.
3916 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3917 # family. For these cases, configure is free to use any functions
3918 # found in the SDK headers by default. (Alternatively, we could force
3919 # _WIN32_WINNT to 0x0602 in that case.)
3920 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3921 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3922 #ifdef WINAPI_FAMILY
3923 #include <winapifamily.h>
3924 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3925 #error not desktop
3926 #endif
3927 #endif
3928 EOF
3929 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3930 eval ${pfx}libc_type=klibc
3931 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3932 eval ${pfx}libc_type=bionic
3933 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3934 eval ${pfx}libc_type=solaris
3935 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3936 else
3937 eval ${pfx}libc_type=default
3938 add_${pfx}cppflags -D_DEFAULT_SOURCE
3939 fi
3940 }
3941
3942 probe_libc
3943 test -n "$libc_type" && enable libc_$libc_type
3944 probe_libc host_
3945 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3946
3947 case $libc_type in
3948 bionic)
3949 add_compat strtod.o strtod=avpriv_strtod
3950 ;;
3951 esac
3952
3953 # hacks for compiler/libc/os combinations
3954
3955 if enabled_all tms470 libc_glibc; then
3956 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3957 add_cppflags -D__USER_LABEL_PREFIX__=
3958 add_cppflags -D__builtin_memset=memset
3959 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3960 add_cflags -pds=48 # incompatible redefinition of macro
3961 fi
3962
3963 if enabled_all ccc libc_glibc; then
3964 add_ldflags -Wl,-z,now # calls to libots crash without this
3965 fi
3966
3967 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3968 add_cppflags '-I\$(SRC_PATH)/compat/float'
3969
3970 esc(){
3971 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3972 }
3973
3974 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3975
3976 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3977
3978 set_default $PATHS_LIST
3979 set_default nm
3980
3981 # we need to build at least one lib type
3982 if ! enabled_any static shared; then
3983 cat <<EOF
3984 At least one library type must be built.
3985 Specify --enable-static to build the static libraries or --enable-shared to
3986 build the shared libraries as well. To only build the shared libraries specify
3987 --disable-static in addition to --enable-shared.
3988 EOF
3989 exit 1;
3990 fi
3991
3992 die_license_disabled() {
3993 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3994 }
3995
3996 die_license_disabled gpl libcdio
3997 die_license_disabled gpl libx264
3998 die_license_disabled gpl libx265
3999 die_license_disabled gpl libxavs
4000 die_license_disabled gpl libxvid
4001 die_license_disabled gpl x11grab
4002
4003 die_license_disabled nonfree cuda
4004 die_license_disabled nonfree libfaac
4005 die_license_disabled nonfree libfdk_aac
4006 die_license_disabled nonfree nvenc
4007 die_license_disabled nonfree openssl
4008
4009 die_license_disabled version3 libopencore_amrnb
4010 die_license_disabled version3 libopencore_amrwb
4011 die_license_disabled version3 libvo_aacenc
4012 die_license_disabled version3 libvo_amrwbenc
4013
4014 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4015
4016 disabled optimizations || check_cflags -fomit-frame-pointer
4017
4018 enable_weak_pic() {
4019 disabled pic && return
4020 enable pic
4021 add_cppflags -DPIC
4022 case "$target_os" in
4023 mingw*|cygwin*)
4024 ;;
4025 *)
4026 add_cflags -fPIC
4027 ;;
4028 esac
4029 add_asflags -fPIC
4030 }
4031
4032 enabled pic && enable_weak_pic
4033
4034 check_cc <<EOF || die "Symbol mangling check failed."
4035 int ff_extern;
4036 EOF
4037 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4038 extern_prefix=${sym%%ff_extern*}
4039
4040 check_cc <<EOF && enable_weak inline_asm
4041 void foo(void) { __asm__ volatile ("" ::); }
4042 EOF
4043
4044 _restrict=
4045 for restrict_keyword in restrict __restrict__ __restrict; do
4046 check_cc <<EOF && _restrict=$restrict_keyword && break
4047 void foo(char * $restrict_keyword p);
4048 EOF
4049 done
4050
4051 check_cc <<EOF && enable pragma_deprecated
4052 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4053 EOF
4054
4055 check_cc <<EOF && enable attribute_packed
4056 struct { int x; } __attribute__((packed)) x;
4057 EOF
4058
4059 check_cc <<EOF && enable attribute_may_alias
4060 union { int x; } __attribute__((may_alias)) x;
4061 EOF
4062
4063 check_cc <<EOF || die "endian test failed"
4064 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4065 EOF
4066 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4067
4068 check_gas() {
4069 log "check_gas using '$as' as AS"
4070 # :vararg is used on aarch64, arm and ppc altivec
4071 check_as <<EOF || return 1
4072 .macro m n, y:vararg=0
4073 \n: .int \y
4074 .endm
4075 m x
4076 EOF
4077 # .altmacro is only used in arm asm
4078 ! enabled arm || check_as <<EOF || return 1
4079 .altmacro
4080 EOF
4081 enable gnu_as
4082 return 0
4083 }
4084
4085 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4086 nogas=:
4087 enabled_any arm aarch64 && nogas=die
4088 enabled_all ppc altivec && nogas=warn
4089 as_noop=-v
4090
4091 case $as_type in
4092 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4093 gcc) gaspp_as_type=gas ;;
4094 *) gaspp_as_type=$as_type ;;
4095 esac
4096
4097 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4098
4099 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4100 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4101
4102 if ! check_gas ; then
4103 as=${gas:=$as}
4104 check_gas || \
4105 $nogas "GNU assembler not found, install/update gas-preprocessor"
4106 fi
4107
4108 check_as <<EOF && enable as_func
4109 .func test
4110 .endfunc
4111 EOF
4112 fi
4113
4114 check_inline_asm inline_asm_labels '"1:\n"'
4115
4116 if enabled aarch64; then
4117 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4118 # internal assembler in clang 3.3 does not support this instruction
4119 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4120 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4121
4122 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4123
4124 elif enabled alpha; then
4125
4126 check_cflags -mieee
4127
4128 elif enabled arm; then
4129
4130 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4131 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4132 enabled thumb && check_cflags -mthumb || check_cflags -marm
4133
4134 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4135 enable vfp_args
4136 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4137 enable vfp_args
4138 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4139 case "${cross_prefix:-$cc}" in
4140 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4141 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4142 __asm__ (".eabi_attribute 28, 1");
4143 int main(void) { return 0; }
4144 EOF
4145 esac
4146 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4147 fi
4148
4149 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4150 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4151 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4152 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4153 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4154 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4155
4156 [ $target_os = linux ] || [ $target_os = android ] ||
4157 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4158 $ARCH_EXT_LIST_ARM
4159
4160 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4161
4162 check_as <<EOF && enable as_dn_directive
4163 ra .dn d0.i16
4164 .unreq ra
4165 EOF
4166
4167 # llvm's integrated assembler supports .object_arch from llvm 3.5
4168 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4169 .object_arch armv4
4170 EOF
4171
4172 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4173
4174 elif enabled mips; then
4175
4176 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4177
4178 # make sure that only an instruction set is enabled
4179 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4180
4181 if enabled mips64; then
4182 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4183 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4184 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4185 else
4186 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4187 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4188 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4189 fi
4190
4191 elif enabled parisc; then
4192
4193 if enabled gcc; then
4194 case $($cc -dumpversion) in
4195 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4196 esac
4197 fi
4198
4199 elif enabled ppc; then
4200
4201 enable local_aligned_8 local_aligned_16
4202
4203 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4204 check_inline_asm ibm_asm '"add 0, 0, 0"'
4205 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4206 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4207
4208 # AltiVec flags: The FSF version of GCC differs from the Apple version
4209 if enabled altivec; then
4210 check_cflags -maltivec -mabi=altivec &&
4211 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4212 check_cflags -faltivec
4213
4214 # check if our compiler supports Motorola AltiVec C API
4215 check_cc <<EOF || disable altivec
4216 $inc_altivec_h
4217 int main(void) {
4218 vector signed int v1 = (vector signed int) { 0 };
4219 vector signed int v2 = (vector signed int) { 1 };
4220 v1 = vec_add(v1, v2);
4221 return 0;
4222 }
4223 EOF
4224
4225 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4226 fi
4227
4228 if enabled vsx; then
4229 check_cflags -mvsx &&
4230 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4231 fi
4232
4233 if enabled power8; then
4234 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4235 fi
4236
4237 elif enabled x86; then
4238
4239 check_builtin rdtsc intrin.h "__rdtsc()"
4240 check_builtin mm_empty mmintrin.h "_mm_empty()"
4241
4242 enable local_aligned_8 local_aligned_16
4243
4244 # check whether EBP is available on x86
4245 # As 'i' is stored on the stack, this program will crash
4246 # if the base pointer is used to access it because the
4247 # base pointer is cleared in the inline assembly code.
4248 check_exec_crash <<EOF && enable ebp_available
4249 volatile int i=0;
4250 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4251 return i;
4252 EOF
4253
4254 # check whether EBX is available on x86
4255 check_inline_asm ebx_available '""::"b"(0)' &&
4256 check_inline_asm ebx_available '"":::"%ebx"'
4257
4258 # check whether xmm clobbers are supported
4259 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4260
4261 # check whether binutils is new enough to compile SSSE3/MMXEXT
4262 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4263 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4264
4265 if ! disabled_any asm mmx yasm; then
4266 if check_cmd $yasmexe --version; then
4267 enabled x86_64 && yasm_extra="-m amd64"
4268 yasm_debug="-g dwarf2"
4269 elif check_cmd nasm -v; then
4270 yasmexe=nasm
4271 yasm_debug="-g -F dwarf"
4272 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4273 fi
4274
4275 YASMFLAGS="-f $objformat $yasm_extra"
4276 enabled pic && append YASMFLAGS "-DPIC"
4277 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4278 case "$objformat" in
4279 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4280 esac
4281
4282 check_yasm "movbe ecx, [5]" && enable yasm ||
4283 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4284 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4285 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4286 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4287 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4288 check_yasm "CPU amdnop" || disable cpunop
4289 fi
4290
4291 case "$cpu" in
4292 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4293 disable fast_clz
4294 ;;
4295 esac
4296
4297 fi
4298
4299 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4300
4301 check_ldflags -Wl,--as-needed
4302
4303 if check_func dlopen; then
4304 ldl=
4305 elif check_func dlopen -ldl; then
4306 ldl=-ldl
4307 fi
4308
4309 if ! disabled network; then
4310 check_func getaddrinfo $network_extralibs
4311 check_func inet_aton $network_extralibs
4312
4313 check_type netdb.h "struct addrinfo"
4314 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4315 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4316 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4317 check_type poll.h "struct pollfd"
4318 check_type netinet/sctp.h "struct sctp_event_subscribe"
4319 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4320 check_type netinet/in.h "struct sockaddr_in6"
4321 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4322 check_type "sys/types.h sys/socket.h" socklen_t
4323
4324 # Prefer arpa/inet.h over winsock2
4325 if check_header arpa/inet.h ; then
4326 check_func closesocket
4327 elif check_header winsock2.h ; then
4328 check_func_headers winsock2.h closesocket -lws2 &&
4329 network_extralibs="-lws2" ||
4330 { check_func_headers winsock2.h closesocket -lws2_32 &&
4331 network_extralibs="-lws2_32"; } || disable winsock2_h network
4332 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4333
4334 check_type ws2tcpip.h socklen_t
4335 check_type ws2tcpip.h "struct addrinfo"
4336 check_type ws2tcpip.h "struct group_source_req"
4337 check_type ws2tcpip.h "struct ip_mreq_source"
4338 check_type ws2tcpip.h "struct ipv6_mreq"
4339 check_type winsock2.h "struct pollfd"
4340 check_struct winsock2.h "struct sockaddr" sa_len
4341 check_type ws2tcpip.h "struct sockaddr_in6"
4342 check_type ws2tcpip.h "struct sockaddr_storage"
4343 else
4344 disable network
4345 fi
4346 fi
4347
4348 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4349 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4350 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4351 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4352
4353 case "$custom_allocator" in
4354 jemalloc)
4355 # jemalloc by default does not use a prefix
4356 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4357 ;;
4358 tcmalloc)
4359 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4360 malloc_prefix=tc_
4361 ;;
4362 esac
4363
4364 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4365 check_func ${malloc_prefix}memalign && enable memalign
4366 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4367
4368 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4369 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4370
4371 check_func fcntl
4372 check_func fork
4373 check_func gethrtime
4374 check_func getopt
4375 check_func getrusage
4376 check_func gettimeofday
4377 check_func gmtime_r
4378 check_func isatty
4379 check_func localtime_r
4380 check_func mach_absolute_time
4381 check_func mkstemp
4382 check_func mmap
4383 check_func mprotect
4384 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4385 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4386 check_func sched_getaffinity
4387 check_func setrlimit
4388 check_func strerror_r
4389 check_func sysconf
4390 check_func sysctl
4391 check_func usleep
4392
4393 check_func_headers io.h setmode
4394 check_func_headers stdlib.h getenv
4395
4396 check_func_headers windows.h CoTaskMemFree -lole32
4397 check_func_headers windows.h GetProcessAffinityMask
4398 check_func_headers windows.h GetProcessTimes
4399 check_func_headers windows.h GetSystemTimeAsFileTime
4400 check_func_headers windows.h LoadLibrary
4401 check_func_headers windows.h MapViewOfFile
4402 check_func_headers windows.h SetConsoleTextAttribute
4